| Fri Jul 19 18:56:14 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cse.c (canon_reg): Allow for recursive call returning 0 (if we had |
| an EXPR_LIST). |
| * sched.c (init_aliases_analysis): Ignore REG_EQUAL note when its value |
| is an EXPR_LIST. |
| * unroll.c (loop_iterations): Likewise. |
| |
| * rs6000.md (andsi3): Fix typo in and-with-cc pattern. |
| |
| Fri Jul 19 11:23:22 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * toplev.c (set_target_switch): For TARGET_OPTIONS, set the |
| variable to the variable part of the actual option. |
| * tm-m88k.h, out-m88k.c: Change the use of m88k_short_data. |
| |
| * varasm.c (output_constant_def): Merge get_or_assign_label and |
| delete it. Ensure that ENCODE_SEGMENT_INFO is evaluated before |
| SELECT_SECTION. |
| |
| Thu Jul 18 19:57:45 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * expr.h (MUST_PASS_IN_STACK_BAD_PADDING): Definitions were backwards. |
| |
| Thu Jul 18 17:52:46 1991 Jim Wilson (wilson at wookumz.gnu.ai.mit.edu) |
| |
| * unroll.c: Fix typos in comments. |
| (splittable_regs_updates): New static global variable. |
| Indicates the number of instructions that modify a split biv |
| remaining during the last iteration of a loop, so that the last one |
| can be handled specially. |
| (unroll_loop): Allocate and clear it. |
| (copy_loop_body): Use it to determine how to rewrite an insn |
| modifying a split iv. |
| (find_splittable_regs): When a splittable biv is identified, set it |
| equal to the number of insn modifying the biv. |
| (find_splittable_givs): When a splittable giv is identified, set |
| it to one if this giv is a reg. |
| |
| * unroll.c (copy_loop_body): Instead of trying to special case |
| insns that use start_label, use the label_map to map the start |
| label to the appropriate label for all insns except those that |
| must be inverted and redirected. The former code did not handle |
| tablejumps that used the start_label correctly. |
| |
| * integrate.c (copy_rtx_and_substitute): Don't legitimize an |
| address inside of an ADDRESS rtx. This fails, because this need |
| not be a validate address, but it is always valid in the context |
| it appears in. |
| |
| Thu Jul 18 08:13:56 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * toplev.c (set_target_switch): Support TARGET_OPTIONS for command |
| options with values. |
| |
| * varasm.c (output_constant_def): Set flags with |
| ENCODE_SEGMENT_INFO for strings and constructors. |
| * tm-mips.h (ENCODE_SEGMENT_INFO): Must be a VAR_DECL. |
| |
| * out-m88k.c, tm-m88k.h, m88k.md: Implement a global pool approach |
| to short addressing. |
| |
| * m88k.md (extendsfdf2, truncdfsf2): Use fsub rather than fadd. |
| This conforms to IEEE 754 in all rounding modes except round to |
| negative infinity whereas fadd conforms only in that mode. |
| |
| Thu Jul 18 01:01:37 1991 Eric Youngdale (youngdale at v6550c.nrl.navy.mil) |
| |
| * make-cc1.com: Add command line to compile reg-stack.c, and add |
| reg-stack.obj to the list of files passed to the VMS linker. |
| |
| Thu Jul 18 00:11:00 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * Makefile.in (enquire.o): Need not depend on gnulib. |
| (gnulib2): Renamed from gnulib2.portable. |
| Don't do ranlib. |
| (gnulib2.portable): Just refers to gnulib2. |
| (gnulib1.portable): Don't do ranlib. |
| |
| Wed Jul 17 11:19:09 1991 Michael Meissner (meissner at geech.gnu.ai.mit.edu) |
| |
| * Makefile.in (gcc): Do a -dumpspecs after building gcc so that -B./ |
| will override any installed specs in /usr/local/lib. |
| (mostlyclean): Delete *.cpp files which are left if you use |
| -save-temps. |
| |
| Wed Jul 17 06:08:33 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * combine.c (try_combine): When putting I2 and/or I1 into NEWPAT, |
| check for a PARALLEL; if so, just put in the relevant SET instead |
| of making a PARALLEL containing a PARALLEL. |
| |
| Tue Jul 16 18:58:51 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * combine.c (record_value_for_reg): Show we haven't seen the death |
| of a register once we have seen it modified. |
| |
| * reload1.c (reload): If we decide to put a pseudo which used to have |
| a MEM equiv onto the stack, set SOMETHING_CHANGED and reprocess all |
| eliminations and pseudos without scanning the insns. |
| |
| Tue Jul 16 13:17:14 1991 Michael Meissner (meissner at wookumz.gnu.ai.mit.edu) |
| |
| * cplus-decl.c (sigsegv): Make signal handler void for full |
| prototyping systems. |
| |
| Tue Jul 16 12:25:18 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * dbxout.c (dbxout_symbol): Ignore types with no names of any kind. |
| |
| Tue Jul 16 07:12:52 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * stmt.c (pushcase, pushcase_range): Return label in *DUPLICATE, |
| not integer value. |
| |
| * rtlanal.c (reg_referenced_p, reg_overlap_mentioned_p): Allow X to |
| be (cc0) or (pc). |
| |
| * combine.c (subst, case SET): Delete code to remove "unnecessary" |
| SUBREG; code was incorrect and this is done (corrected below) in |
| simplify_comparison. |
| (simplify_comparison): Can only remove SUBREG for equality comparisons. |
| |
| * expr.c (expand_expr, case COND_EXPR): If condition has side effects, |
| ensure we evaluate it before evaluating an arm of the COND_EXPR. |
| |
| Mon Jul 15 21:59:36 1991 James Van Artsdalen (james at bigtex.cactus.org) |
| |
| * rtl.h (FUNCTION_FLAGS_RETURNS_STRUCT): Fix typo in value. |
| |
| Mon Jul 15 22:18:40 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * cccp.c (main): Ignore CPATH if -nostdinc. |
| |
| Mon Jul 15 22:00:02 1991 Michael Meissner (meissner at churchy.gnu.ai.mit.edu) |
| |
| * reload.c (find_reloads): Fix typo (reg_sets_p instead of |
| reg_set_p). |
| |
| Mon Jul 15 21:49:09 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * c-parse.y (stmt): Emit the nop for the start of a loop |
| only after the line number. |
| |
| Mon Jul 15 16:50:51 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edn) |
| |
| * rtlanal.c (reg_set_p): If we are passed an insn, only pass the |
| pattern to note_stores. |
| |
| * local-alloc.c (validate_equiv_mem): A CALL_INSN invalidates all |
| memory. |
| |
| Sun Jul 14 06:34:47 1991 Richard Kenner (kenner at vlsi1.ultra.hyu.edu) |
| |
| * cse.c (last_jump_equiv_class): New variable. |
| (record_jump_equiv): Set it. |
| (cse_insn): Clear it. |
| (cse_around_loop): Invalidate all entries in last_jump_equiv_class. |
| (cse_set_around_loop): Ensure our replacement is cheaper. |
| |
| Sat Jul 13 17:15:30 1991 James Van Artsdalen (james at bigtex.cactus.org) |
| |
| * cplus-decl.c (finish_enum): Fix typo in arguments for finish_decl. |
| * cplus-class.c (finish_struct): Likewise. |
| |
| Fri Jul 12 16:45:02 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * dbxout.c (dbxout_symbol): Don't crash when DECL_NAME is 0. |
| |
| Fri Jul 12 15:38:24 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expr.c (do_tablejump): Don't write BARRIER between jump and table |
| if they must remain adjacent. |
| |
| * varasm.c (make_decl_rtl): Set REG_USERVAR_P when register name |
| is specified. |
| * integrate.c (subst_constants): Don't substitute for a user |
| variable assigned to a hard register. |
| |
| * reload.c (find_reloads): Add new vars no_{input,output}_reloads to |
| indicate when the corresponding reload type is not permitted; reject |
| an alternative that would try such a reload. |
| * rs6000.md (decrement-and-branch): No longer need kludges to |
| avoid output reloads. |
| Use '0' instead of 'c' for input 1 in alternative 0. |
| Allow operand 0 to be in non-general register. |
| |
| Fri Jul 12 10:54:39 1991 James Van Artsdalen (james at bigtex.cactus.org) |
| |
| * c-decl.c (finish_struct, finish_enum): Fix typo in arguments for |
| finish_decl. |
| |
| * i386.md (bit test patterns): Delete bit tests using implicitly |
| masked bit number operand: the hardware doesn't work like that. |
| |
| Fri Jul 12 09:50:43 1991 Michael Meissner (meissner at spiff.gnu.ai.mit.edu) |
| |
| * tm-hp9k2bsd.h (toplevel): Remove RCS HISTORY log. |
| |
| Thu Jul 11 00:46:48 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * c-parse.y (yylex): Do try signed int for ANSI nondecimal constants. |
| |
| * c-typeck.c (record_format_info): The first time, use xmalloc. |
| |
| Wed Jul 10 18:54:26 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * jump.c (jump_optimize): Fix typo in "if (...) x = a; else x = b;" |
| case: had temp3 instead of temp4. |
| |
| * cplus-lex.c (lineno, end_of_file): Move definition to before |
| first use. |
| (reinit_parse_for_block): Variable `c' must be int to ensure EOF fits. |
| * cplus-input.c (getch): Remove extraneous declaration of end_of_file. |
| |
| * reload1.c: Include insn-flags.h. |
| (emit_reload_insns): Handle the case where we reload an entire |
| address; use "reload_load_address" pattern, if it exists. |
| Remove explicit SImode reference; should have been Pmode, but |
| IN can be used instead of rebuilding it. |
| * Makefile.in (reload1.o): Includes insn-flags.h. |
| |
| * reload.c (find_reloads): If replacing an output REG with a MEM, |
| write a CLOBBER for the REG after the insn. |
| * reload1.c (eliminate_regs): Add new arg INSN; if nonzero, add a |
| CLOBBER when replacing a REG in SET_DEST with a MEM. |
| (reload, eliminate_regs_in_insn): Add new arg to eliminate_regs. |
| * dwarfout.c (output_bound_representation, location_attribute): |
| Likewise. |
| |
| * reload1.c (reload): If a reg_equiv_memory_loc isn't strictly valid |
| and isn't sufficiently simple, use a stack slot instead. |
| (alter_regs): Don't delete reg_equiv_init insns here. |
| (reload_as_needed): Do it here. |
| |
| * stor-layout.c (get_best_mode): Correct test for alignment. |
| |
| * loop.c (move_movables): Don't get confused by NOTE insns in gnulib |
| call sequence. |
| |
| Wed Jul 10 18:40:32 1991 Matthew Self (mself at geech.gnu.ai.mit.edu) |
| |
| * cccp.c (enum node_type): Added T_WARNING. |
| |
| * cccp.c (directive_table): Added #warning. |
| |
| * cccp.c (do_warning): Print warning message and continue. |
| |
| Wed Jul 10 18:38:28 1991 Matthew Self (mself at geech.gnu.ai.mit.edu) |
| |
| * c-parse.y, objc-parse.y (attrib): Pass "format" attribute |
| through. Takes one identifier and two constants as args. |
| identifier must be either printf or scanf. |
| |
| * c-common.c (decl_attributes): Process "format" attributes. |
| Call new routine record_format_info(). |
| |
| * c-typeck.c (struct function_info): Changed function_ident field; |
| store identifier node rather than char * to speed lookup. |
| Renamed arg_num field to format_num. Replaced is_varargs field |
| with new first_arg_num field. |
| |
| * c-typeck.c (check_format): Modified to use new arg_num and |
| first_arg_num fields. |
| |
| * c-typeck.c (record_format_info): New routine. Replaces static |
| table of functions to check. |
| |
| * cplus-typeck.c (record_format_info): New stub routine so c++ |
| will link. Someone should implement format checking for c++. |
| |
| * c-typeck.c (init_format_info_table): New routine to add |
| entries for ANSI functions to table. |
| |
| * c-decl.c (init_decl_processing): Call init_format_info_table(). |
| |
| * c-typeck.c (build_function_call): Modified to use dynamic table |
| rather than static one. Compare identifier nodes rather than |
| using strcmp(). |
| |
| * gcc.texinfo (): Document "format" attribute. |
| |
| * c-typeck.c (check_format): Call warning() directly rather than |
| returning the warning string. This way we can give multiple warnings |
| by continuing. Several changes to make continuing safe. |
| |
| * c-typeck.c (build_function_call): Incorporated changed return |
| value of check_format(). |
| |
| * c-typeck.c (check_format): Check for NULL format string. |
| |
| Wed Jul 10 16:40:54 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * sdbout.c (sdbout_tags): Delete this and use the TYPE_DECL |
| representation of tagged types. Types are now output in their |
| original lexical order. |
| (sdbout_symbol): Return early (only using sdbout_one_type) when a |
| tagged type is encountered. |
| (sdbout_block, sdbout_symbol): Don't use sdbout_tags. |
| * toplev.c (compile_file): Don't use sdbout_tags. |
| * varasm.c (assemble_function): Don't use sdbout_tags. |
| |
| Wed Jul 10 15:13:33 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * dbxout.c (dbxout_tags): Function deleted. Calls deleted too. |
| (dbxout_tagged_type): New function. |
| (dbxout_symbol): Call that. |
| * toplev.c (compile_file): Call to dbxout_tags deleted. |
| |
| * c-parse.y (yylex): Simplify choice of type for integers. |
| When traditional, all integers are signed unless explicitly unsigned. |
| |
| Wed Jul 10 13:35:27 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * configure (m88k-svr4): Needs make-m88ksvr4. |
| * make-m88ksvr4: New file. |
| |
| Wed Jul 10 13:18:03 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * c-decl.c (duplicate_decls): Warn if `inline' is not consistent. |
| |
| * cccp.c (hack_vms_include_specification): Fix typos. |
| |
| Tue Jul 9 22:21:22 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * loop.c (find_and_verify_loops): RETURN insns aren't listed in |
| loop_number_exit_labels, so don't try to remove JUMP_LABEL of a |
| RETURN from that list. |
| |
| * rtlanal.c (reg_referenced_between_p): New function. |
| * jump.c (jump_optimize): Use it instead of reg_used_between_p when |
| checking for "if (...) x = a; else x = b;" case. |
| |
| Tue Jul 9 13:03:53 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * expr.c (move_block_to_reg): Don't force_const_mem on non-constant. |
| |
| Tue Jul 9 09:13:32 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * c-decl.c (finish_struct): Record tagged types as a TYPE_DECL |
| with a NULL DECL_NAME. |
| (finish_enum): Ditto. |
| * cplus-decl.c (finish_enum): Ditto. |
| * cplus-class.c (finish_struct): Ditto. |
| |
| * dbxout.c (dbxout_symbol): Ignore TYPE_DECLs for tagged types. |
| * cplus-dbxout.c (dbxout_symbol): Ditto. |
| * sdbout.c (sdbout_symbol): Ditto. |
| |
| * toplev.c (compile_file): DECL_NAME may be null. |
| |
| * dwarfout.c (output_symbol): Use output_dies_for_tagged_type for |
| TYPE_DECLs of tagged types. |
| (dwarfout_output_tagged_type): Deleted. |
| (output_dies_for_tagged_type): Mark TREE_ASM_WRITTEN early. |
| |
| Mon Jul 8 19:36:44 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * jump.c (jump_optimize): Check for extra labels when detecting |
| "if (...) x = a; else x = b;". Include the insn for "x = a;" when |
| testing for data conflict. |
| |
| Mon Jul 8 19:34:14 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * integrate.c (copy_for_inline, case MEM): Must copy a MEM even if |
| it has a constant address if that address involves a LABEL_REF. |
| |
| * rtlanal.c (reg_set_p): Only check for REG_INC notes and a CALL_INSN |
| if we are passed an insn. |
| * local-alloc.c (optimize_reg_copy): Remove tests now done in |
| reg_set_p. |
| |
| Mon Jul 8 16:38:49 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * c-parse.y (yylex): Pedantic warning here for `asm'. |
| No warning for `__asm__'. |
| (maybe_type_qual, maybeasm, extdef): No warning here. |
| |
| * objc-actions.c: Rename OBJC_SELS_R_INTS to OBJC_INT_SELECTORS. |
| Rename OBJC_UNIQUE_SELS to OBJ_NONUNIQUE_SELECTORS, reversing sense. |
| Eliminate OBJC_SELS_R_STRUCT_PTRS. |
| |
| Mon Jul 8 06:37:00 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * rtlanal.c (reg_{used,set}_between_p): Allow FROM_INSN == TO_INSN; |
| return 0 in that case. |
| |
| * jump.c (mark_jump_label): Fix typo in use of GET_RTX_LENGTH. |
| |
| * reload.c (reload_strict_low): Change comment to say that this is |
| always zero; we don't use it any more. |
| |
| Sun Jul 7 22:14:13 1991 Michael Meissner (meissner@churchy.gnu.ai.mit.edu) |
| |
| * tm-mips.h (FRAME_POINTER_REQUIRED): Fix typo that required a frame |
| if alloca was not called, instead of the reverse. |
| |
| Sun Jul 7 17:14:17 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * cccp.c (struct file_buf): New field system_header_p. |
| Everything that pushes on instack now initializes this field. |
| (finclude): New arg to set that field. Callers changed. |
| (do_include): Pass that arg as 1 for <...>, else 0. |
| |
| * cccp.c (do_include): Warn for first use of #import |
| except in system header files. |
| (handle_directive): Support #import if compiling for Next. |
| |
| * cccp.c (do_pragma): For #pragma once, warn it is obsolete. |
| |
| Sun Jul 7 14:29:04 1991 James Van Artsdalen (james at bigtex.cactus.org) |
| |
| * tm-att386.h (NO_DOLLAR_IN_LABEL): Define this here, |
| * tm-i386sco.h (NO_DOLLAR_IN_LABEL): not here. |
| |
| Sun Jul 7 06:20:03 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * rtlanal.c (reg_set_p): Return 1 if REG is found in a REG_INC |
| note or if INSN is a CALL_INSN and REG is a hard reg. |
| (reg_set_last): Only return a register or constant; if returning a |
| register, ensure it isn't modified between the SET we found and INSN. |
| |
| * jump.c (jump_optimize): If SMALL_REGISTER_CLASSES, don't make a |
| store-flag insn if any register involved is a hard reg. |
| |
| Sat Jul 6 14:51:15 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * expr.c (expand_assignment): Don't abort for volatile structure field |
| even if the structure is in a register. |
| NOTE: This leaves the problem of implementing whatever meaning |
| a volatile field should actually have. |
| |
| * fold-const.c (div_and_round_double): Make lnum and lden unsigned. |
| Use the small-denominator algorithm only for denom < 2**24. |
| Fix backward conditionals in ?: operators in general case. |
| Change i + j to i - 1 + j when indexing num. |
| |
| Fri Jul 5 21:36:57 1991 Ken Raeburn (raeburn at watch.com) |
| |
| * genpeep.c (match_rtx, case MATCH_OP_DUP): Output semicolon after |
| "goto" statement. |
| |
| Fri Jul 5 09:45:56 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * rs6000.md (andsi3): Bias alternatives so we always prefer constants. |
| (define_splits of DImode, SFmode, and DFmode): Don't split |
| unless after reload. |
| (ashldi3, lshrdi3): Fix bugs in instruction order; use & in |
| output constraint so can't conflict with operand 2; use '0' |
| constraint to allow operands 0 and 1 to be the same register. |
| |
| * regclass.c (reg_n_sets): Move definition before use. |
| |
| * reorg.c (fill_simple_delay_slots): Candidate for delay slot cannot |
| set anything set between it and the delay insn. |
| |
| * jump.c (jump_optimize): In "if (...) x = a; else x = b;", correctly |
| specify range to check if X is used or set. |
| Use rtx_equal_p to check for matching X. |
| |
| Thu Jul 4 15:55:45 1991 Tom Wood (wood at geech.gnu.ai.mit.edu) |
| |
| * cccp.c (default_include): Add /usr/mach/include for MACH systems. |
| |
| * configure (m88k-luna): Needs make-m88kluna. |
| * make-m88kluna: New file. |
| |
| * dwarf.h: New file derived from the UNIX International |
| Programming Languages Special Interest Group DWARF specification. |
| * dwarfout.c (includes): Include "dwarf.h". |
| (subscript_data_attribute): Use FMT_CODE to encode array subscripts. |
| (languagribute): LANG type no longer provided by dwarf.h. |
| (output_source_file_die): Determine proper language attribute. |
| |
| Thu Jul 4 12:14:16 1991 James Van Artsdalen (james at bigtex.cactus.org) |
| |
| * cplus-xref.c: define rindex if USG |
| |
| Thu Jul 4 12:36:55 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * gcc.c (process_command): Correctly split -L from its arg. |
| * SWITCHES_NEED_SPACES: New host machine option. |
| This really ought to be defined now for certain hosts, |
| but I don't know which ones they are. |
| |
| Wed Jul 3 23:31:00 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * tm-m68k.h (ASM_OUTPUT_FLOAT): Check CROSS_COMPILE (there was a typo). |
| |
| Wed Jul 3 22:05:55 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cse.c (simplify_binary_operation, case MINUS): Fix typo in op number. |
| |
| * cse.c (cse_basic_block): Correctly handle the case where TO |
| was a label with zero uses at the end of the function. |
| |
| * combine.c (significant_valid): New variable. |
| (combine_instructions): Turn significant_valid off until after |
| we finished computing reg_significant. |
| (significant_bits): Ignore reg_significant when significant_valid |
| is zero. |
| |
| * rtlanal.c (reg_set_last): Go past CALL_INSN as long as we are not |
| looking for a hard register. |
| |
| Wed Jul 3 21:07:18 1991 Jim Wilson (wilson at wookumz.gnu.ai.mit.edu) |
| |
| * sched.c (schedule_block): When computing what registers are dead |
| at the end of the current block, correctly handle REG_DEAD notes |
| that refer to multi-word hard registers. |
| |
| * loop.c (mark_loop_jump): When invalidating loops with multiple |
| entries, must invalidate every nested loop containing the target |
| of a loop entry jump, except for those that also contain the jump |
| itself. |
| |
| * loop.c (record_giv): When computing whether a giv is |
| replaceable, check whether the biv update has a valid luid, and |
| mark it as not replaceable if not. |
| |
| * combine.c (gen_rtx_combine): Call rtx_alloc instead of gen_rtx, |
| because it is much faster, especially on some RISC machines. |
| |
| * fixincludes: Add optional argument which indicates where to put |
| the fixed include files. Echo the directory name where the |
| include files will be put. |
| |
| * cccp.c (struct default_include): Don't examine |
| STANDARD_INCLUDE_DIR or /usr/local/include when |
| NO_STANDARD_INCLUDE_DIR is defined. This is useful when building |
| cross compilers. |
| (main): Only send SIGPIPE signal if the SIGPIPE signal exists on |
| the host. |
| (rescan, handle_directive, skip_if_group, validate_else, |
| skip_to_end_of_comment, macarg1, discard_comments): Accept '//' as |
| a comment in Objective-C as well as C++. The Objective C language |
| specifies that '//' starts a comment. |
| |
| * .gdbinit (ptn): Define new macro to print out the name of a type |
| node. |
| |
| * stab.def: Correct errors in table for values of DSLINE and |
| BSLINE. Document the conflict between BROWS and BSLINE. Document |
| the value of the BROWS field. |
| |
| Tue Jul 2 23:26:20 1991 Michael Meissner (meissner at pogo.gnu.ai.mit.edu) |
| |
| * mips-tfile.c (toplevel): Add a comment explaining the MIPS ECOFF |
| file format at the start of the file. |
| |
| Tue Jul 2 14:00:39 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * c-typeck.c (build_array_ref): Report error here if the "array" |
| is not an array or pointer. Don't leave this for the PLUS_EXPR. |
| |
| * cccp.c: Inlcude containing file names/lines in error messages. |
| (print_containing_files): New function. |
| (error*, warning): Call it. |
| (finclude): Increment input_file_stack_tick when file changes. |
| |
| * cccp.c: Include descrip.h. |
| |
| Tue Jul 2 07:44:19 1991 Tom Wood (wood at geech.gnu.ai.mit.edu) |
| |
| * tm-m88k.h (ASM_OUTPUT_SOURCE_LINE): Define only for SDB. |
| * tm-m88kdgux.h (AS_BUG_*): Support these for now. |
| |
| * c-decl.c (finish_struct): Invoke dwarfout_output_tagged_type |
| only when producing DWARF debugging info. |
| * cplus-class.c (finish_struct): Ditto. |
| |
| Mon Jul 1 23:03:34 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * toplev.c (compile_file): Close stack_reg_dump_file iff STACK_REGS. |
| |
| Mon Jul 1 15:17:57 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * combine.c (set_significant): Ignore CLOBBERs. |
| (simplify_and_const_int, case SUBREG): Only ignore paradoxical SUBREGs |
| if BYTE_LOADS_ZERO_EXTEND. |
| (record_value_for_reg): Fix typo; had I for REGNO. |
| |
| Mon Jul 1 08:28:09 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * final.c (output_source_line): Output DWARF line numbers. |
| |
| * dwarfout.c (dwarfout_output_tagged_type): New function. |
| * c-decl.c (finish_struct): Call it. |
| * cplus-class.c (finish_struct): Call it. |
| |
| * dwarfout.c (includes): Need insn-config.h and reload.h. |
| (location_attribute): Use eliminate_regs for correct expression. |
| (output_bound_representation): Use SAVE_EXPR_RTL to get rtl and |
| then use eliminate_regs. |
| |
| * reload1.c (reload): When finished, indicate reg_equiv_constant |
| and reg_equiv_memory_loc are no longer valid. |
| (eliminate_regs): Don't attempt use of reg_equiv_constant or |
| reg_equiv_memory_loc if they aren't valid. No longer static. |
| * reload.h: Declare eliminate_regs. |
| |
| * toplev.c (compile_file): Only call dwarfout_file_scope_symbol |
| for VAR_DECLs. |
| |
| Sun Jun 30 15:49:39 1991 Ken Raeburn (raeburn at watch.com) |
| |
| * expr.c (expand_builtin, case BUILT_IN_MEMCPY): If alignment test |
| fails, and function was really BUILT_IN_STRCPY, zero out length |
| parameter before expanding call. |
| |
| Sun Jun 30 18:27:14 1991 Richard Kenner (kenner at vlsi1.ultra.nyu) |
| |
| * jump.c (jump_optimize): In "if (...) x = a; else x = b;", don't |
| move the "x = b;" if the test modifies X or if X is a hard register |
| and SMALL_REGISTER_CLASSES is defined. |
| Turn "if (...) x = 1; else {...} if (x) ..." code on when we have cc0. |
| |
| Sun Jun 30 13:49:03 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * gnulib2.c (__builtin_saveregs): |
| For i860, make data structure fit in with va-i860.h. |
| |
| * tree.c (gcc_obstack_init): |
| Support OBSTACK_CHUNK_ALLOC and OBSTACK_CHUNK_FREE. |
| |
| * calls.c (prepare_call_address): 3rd arg now address of chain var. |
| (expand_call): Call changed. |
| * expr.c (emit_library_call): Call changed. |
| |
| * function.c (fix_lexical_addr): In recursive call, pass slot address. |
| |
| * Makefile.in (cse.o): Added deps. |
| |
| * Makefile.in (GNULIB2_CFLAGS): Use -O2. |
| |
| * gnulib1.c, gnulib2.c (abort): Undefine only if defined. |
| |
| * genattr.c (main): Fix typo in comment end. |
| |
| Sat Jun 29 21:57:28 1991 Torbjorn Granlund (tege at zevs.sics.se) |
| |
| * longlong.h (__sparc8__ umul_ppmm): Insert 3 nop:s for wr delay. |
| * longlong.h (___IBMR2__): Define umul_ppmm, add_ssaaaa, sub_ddmmss.. |
| * longlong.h (__sparc__): Don't call .umul; expand asm instead. |
| Don't define __umulsidi3 (i.e. use default definition). |
| |
| Sat Jun 29 06:25:19 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * tm-vax.h (CPP_SPEC): New macro. |
| (LIB_SPEC): Handle -mg. |
| |
| * cccp.c (install_builtins): Fix backward test of objc. |
| |
| * fold-const.c (size_int): No need to test sign of NUMBER. |
| |
| * gcc.c (process_command): Split -L from its arg. |
| |
| * gcc.c (S_ISREG): Define if not defined. |
| (delete_temp_files): Use it. |
| |
| * limits.h (UCHAR_MAX, CHAR_MAX, USHRT_MAX): Delete `U'. |
| (LONG_MAX, ULONG_MAX): Add `L'. |
| |
| Fri Jun 28 22:22:58 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * Makefile (realclean): Delete stage1, stage2, stage3. |
| |
| * gcc.c (fatal) [HAVE_VFPRINTF]: Do print program name. |
| |
| Fri Jun 28 15:34:08 1991 Jim Wilson (wilson at wookumz.gnu.ai.mit.edu) |
| |
| * out-sparc.c (output_block_move): Correctly handle the case where |
| the size is not a CONST_INT, and has a value of 0. |
| |
| * flags.h (flag_no_inline): Modify comment to match the one in |
| toplev.c. |
| |
| * integrate.c (copy_rtx_and_substitute): When creating new rtx, |
| make sure all of the new bitfields are copied, e.g. |
| REG_LOOP_TEST_P, LABEL_OUTPUT_LOOP_P, etc. |
| |
| * loop.c (loop_optimize): Call reg_scan after |
| find_and_verify_loops, because it may change register lifetimes. |
| (find_and_verify_loops): After moving a block of code outside the |
| loop, must readjust the loop_number_exit_label and |
| LABEL_OUTSIDE_LOOP_P data of the modified jump and the moved jump. |
| toplev.c (rest_of_compilation): Delete reg_scan call before |
| loop_optimize. |
| |
| Fri Jun 28 13:16:37 1991 Michael Meissner (meissner at osf.org) |
| |
| * tm-mips.h (toplevel): Add target_flags to externals declared. |
| (toplevel): Add dslots_number_nops, mips_load_reg{,2}, |
| mips_fill_delay_slot external declarations for delay slot reorg. |
| (CC1PLUS_SPEC): By default, pass -fno-gnu-binutils to cc1plus. |
| (TARGET_FLAGS): Add -mwc8, -mwc16, -mwc32 to set size of wchar_t, |
| though the switches are not used right now. |
| (TARGET_FLAGS): Add -msoft-float code from rfg@ncd.com to compile |
| on systems w/o floating point. |
| (TARGET_FLAGS): -mdebugf suppresses filling load delay slots. |
| (HARD_REGNO_OK): Relax constraints, allow anything in GP |
| registers, anything in even FP registers, int's only in multiply |
| and divide registers, int/CC in the FPSW register. |
| (FRAME_POINTER_REQUIRED): Require frame if alloca is called for |
| now. |
| (REG_CLASS_FROM_LETTER): Index from an array (mips_char_to_class) |
| instead of having lots of ?:'s. Also, allow 'd' to signify GP |
| registers. |
| (ENCODE_SEGMENT_INFO): Only record things being in small data/bss |
| if -mgpOPT (-O sets by default), -O, and -G xx where xx > 0. |
| (FINAL_PRESCAN_INSN): Rework to automatically not fill the |
| previous instruction's load delay slots with nop's if it is safe. |
| (ASM_OUTPUT_LABEL): If compiling collect, don't use assemble_name. |
| (ASM_GLOBALIZE_LABEL): If compiling collect, don't use |
| assemble_name. |
| (ASM_OUTPUT_LABELREF_AS_INT): Define this for collect. |
| (ASM_OUTPUT_INT): If collect, don't use output_addr_const. |
| |
| * mips.md (all floating point): If -msoft-float, don't allow any |
| floating point builtin operations. |
| (all patterns): Use 'd' constraint to limit things to GP |
| registers, rather than 'r'. This allows unions of |
| float/int/double to occupy any registers. |
| (*extend*): Call mips_move_1word to handle loads, which in turn |
| sees if we can omit the load nop. |
| (fix_trunc*): Redo, since register allocator can handle moving to |
| the appropriate register set. |
| (movdf_xfer*): Use explicit return's instead of falling through |
| and having the appropriate value in a register from the previous |
| call. |
| (movsf_xfer*): New patterns to accomidate unions of floats and |
| int's. |
| (movsi_unaligned): New define_expand to call either movsi_ulw or |
| movsi_usw. Also, if not a memory operation, use movsi. |
| (movsi_ulw): Set up to omit load delay nop if we can. |
| (movsi_usw): Use memory_operand instead of simple_memory_operand. |
| Also, allow storing 0 to an unaligned location. |
| (various move patterns): mips_move_1word now takes a third |
| argument to specify whether a load should sign or zero extend. |
| (call_value): Use register_operand on return value. |
| (probe): Turn into define_expand, and set a register to the |
| contents of memory pointed to by the stack pointer with volatil |
| set. |
| |
| * out-mips.c (toplevel): Add new global variables: |
| dslots_number_nops, mips_load_reg{,2}, mips_regno_to_class, |
| mips_char_to_class. |
| (simple_memory_operand): If not optimizing, no global memory |
| reference is assumed to be in the GP area. |
| (mips_fill_delay_slot): New function to tell FINAL_PRESCAN_INSN |
| the current insn is a load and may need a nop. |
| (mips_move_1word): Take a third argument to say whether load byte |
| and load half-word sign extend or zero extend. Change all |
| callers. If this is a load, call mips_fill_delay_slots to |
| schedule the nops. Change all return's to setting a variable, and |
| falling through to the end. |
| (mips_move_2words): If this is a load, call mips_fill_delay_slots |
| to schedule the nops. Change all return's to setting a variable, |
| and falling through to the end. |
| (function_arg): if -msoft-float, floating point is passed in GP |
| registers. |
| (override_options): Initialize mips_char_to_class. |
| (print_operand): %( and %) no longer do .set nomacro. |
| (print_operand): %# prints #nop if gas or -mstats. |
| (print_operand): Check for too many %), %], and %>'s. |
| (compute_frame_size): Allocate space in stack to hold FP, just in |
| case we later need a FP and previously thought we could eliminate |
| it. |
| (save_restore): Take a string to indicate the 2word load/store to |
| use, but don't use it at present. Change all callers. Home |
| varargs registers with sd if we can. |
| (function_epilogue): Deal with one or more outstanding nop's from |
| FINAL_PRESCAN_INSN. |
| (function_epilogue): Revamp -mstats output format. |
| (function_epilogue): Zero new global variables. |
| |
| * make-decrose (toplevel): Sort make variables. |
| (CLIB): Add -lld library. |
| (LANGUAGES): Add build of collect-osf and g++. |
| (ULTRIX_DIR): Change internal work directory location. |
| (cplus-lex.o): Don't optimize to avoid problem with 1.39 compiler. |
| (collect-osf): Add rules to build OSF/rose version of collect. |
| |
| * make-mips (LANGUAGES): Add build of g++. |
| |
| * tm-decrose.h (SIZE_TYPE): Specify to be long unsigned int. |
| (PTRDIFF_TYPE): Specify to be long int. |
| (WCHAR_TYPE): Specify to be long unsigned int. |
| |
| * sdbout.c (plain_type_1): Add support for unknown tags if |
| SDB_ALLOW_UNKNOWN_REFERENCES is defined. The MIPS ECOFF support |
| needs this, but standard COFF typically doesn't allow unknown |
| references. |
| |
| * gcc.texinfo (Debugging Info): Document |
| SDB_ALLOW_UNKNOWN_REFERENCES and SDB_ALLOW_FORWARD_REFERENCES. |
| |
| * collect-osf.c (whole file): New file to provide collect support |
| on OSF/rose. |
| |
| Fri Jun 28 09:20:18 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * configure (m88k-luna): New target. |
| * tm-m88kluna.h: New file for the Omron Luna/88k. |
| * xm-m88k.h: Don't use USG for the luna88k. |
| |
| * tm-m88kdgux.h: DG/UX implements coff and elf. Currently elf is |
| a strange variant of coff that's non-standard (it uses SDB |
| debugging info for example). Soon, the DG/UX elf will support |
| DWARF. These changes provide transitional support for all three. |
| (DWARF_DEBUGGING_INFO, SDB_DEBUGGING_INFO): Define both. |
| (VERSION_0300_SYNTAX): True when -msvr4 and -mversion-03.00. |
| * tm-m88ksvr4.h (ASM_FILE_END, ASM_OUTPUT_DWARF_LINE): Move these |
| to tm-m88k.h. They are dwarf specific. |
| * tm-m88k.h (TARGET_SWITCHES): Add -mversion-03.00 and -mdwarf. |
| (OVERRIDE_OPTIONS): If using version 03.00 syntax, assume DWARF_DEBUG. |
| |
| * tm-m88k.h (REG_ALLOC_ORDER): Adapt slightly for using r26-r29. |
| |
| * out-m88k.c (m88k_debugger_offset): Don't complain if the base |
| register is optimized away. |
| |
| Thu Jun 27 21:43:36 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * local-alloc.c (memref_referenced_p, memref_used_between_p): |
| New functions. |
| (update_equiv_regs): Call memref_used_between_p. |
| |
| Thu Jun 27 19:59:36 1991 Ken Raeburn (raeburn at watch.com) |
| |
| * print-tree.c (print_node): Changed the various "lang_#" strings to |
| indicate which of several possible fields are being examined; new |
| strings are "tree_#", "decl_#", "type_#". |
| |
| Thu Jun 27 15:05:43 1991 Michael Meissner (meissner at churchy.gnu.ai.mit.edu) |
| |
| * xm-mips.h (ONLY_INT_FIELDS): Define if not compiling with GCC |
| since the MIPS compiler treats enum bitfields as signed. |
| |
| Wed Jun 26 19:48:16 1991 Jim Wilson (wilson at wookumz.gnu.ai.mit.edu) |
| |
| * sched.c (memrefs_conflict_p): Explicitly handle case where both |
| X and Y are CONST. |
| (sched_analyze_2): Do create dependencies for insns with REG_EQUIV |
| notes. |
| (sched_note_set): Correctly handle the case where the destination |
| register is a multi-word hard register. |
| (attach_deaths): Don't add a REG_DEAD note to an insn with a |
| REG_UNUSED note that mentions the same register. Correctly handle |
| the case where the destination register is a multi-word hard |
| register. |
| (schedule_block): Also call sched_note_set for CLOBBERs when |
| computing which registers are dead at the end of the basic block. |
| Also call sched_note_set for USEs when computing what registers |
| are still live after a just scheduled insn. |
| (regno_use_in): New function, subroutine of split_hard_reg_notes. |
| Searches an rtx for any reference to the given register, and |
| returns the register rtx used if any. |
| (split_hard_reg_notes): New function. Handles the case where a |
| multi-word hard register with a REG_DEAD note gets split. Creates |
| a new REG_DEAD note for each part of the original hard register |
| used by the split insns. |
| (new_insn_dead_notes): Don't add a REG_DEAD note to an insn with a |
| REG_UNUSED note which mentions the same register. |
| (update_links): Add call to new function split_hard_reg_notes. |
| Correctly handle the case when the dest of the original insn was a |
| multi-word register which was split in the split insns. In this |
| case, the dest is no longer killed here, so must remove the |
| REG_DEAD on the last previous insn in this basic block which used |
| dest, if any such exists. |
| |
| * unroll.c (reg_dead_after_loop): Check that a CODE_LABEL which is |
| the target of a JUMP_INSN has a non-zero PREV_INSN field before |
| trying to derefence it. Fail if there is no previous insn. |
| |
| * loop.c (scan_loop): Fix typo. |
| * local-alloc.c (optimize_reg_copy): Likewise. |
| * global-alloc (hard_reg_copy_preferences): Likewise. |
| * gcc.texinfo (REG_LOOP_TEST_P): Likewise. |
| * optabs.c (expand_float): Likewise. |
| * tm-vaxv.h (ASM_OUTPUT_ASCII): Likewise. |
| |
| * out-sparc.c (output_move_double): Sign extend CONST_INTs that |
| feed DImode targets. |
| * tm-sparc.h (GO_IF_LEGITIMATE_ADDRESS): Don't accept a LABEL_REF |
| as a legal address. Also, delete obsolete parts of preceeding |
| comment. |
| |
| * reload1.c (alter_reg): Only try to delete the reg_equiv_init |
| insn if it hasn't already been deleted by a previous call to |
| delete_dead_insn. |
| |
| * toplev.c (main): Handle -gdbx in addition to -gsdb for |
| orthogonality. |
| * gcc.texinfo: Document -gdbx. |
| |
| Tue Jun 25 09:57:08 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * m88k.md (casesi): Don't emit a barrier; the dispatch code must |
| adjoin the table. |
| * tm-m88k.h (DONT_REDUCE_ADDR): Don't use this. |
| (CONDITIONAL_REGISTER_USAGE): The PIC register is also call-used. |
| * out-m88k.c (m88k_layout_frame): Save the PIC register. |
| |
| Tue Jun 25 07:40:43 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * function.c (expand_function_end): FNDECL should |
| be CURRENT_FUNCTION_DECL. |
| |
| * combine.c (find_split_point): If we see an AND operation as the |
| first operand of some non-AND operation, use it as a split point. |
| (subst): Add counter to limit restarts, go to restart more often. |
| (subst, case AND): If we get (ior (and (X C1) C2)) and can't |
| restart more than once, rewrite with C1 as small as possible and exit. |
| |
| * cse.c (cse_end_of_basic_block): Don't put branch in our path more |
| than once. |
| (cse_main): Clear PATH_SIZE when skipping a block. |
| (cse_basic_block): Use GET_RTX_CLASS. |
| |
| Tue Jun 25 07:39:29 1991 Matthew Self (mself at next.com) |
| |
| * varasm.c (const_hash, compare_constant_1, record_constant_1): |
| For ADDR_EXPR's, don't hash address of SYMBOL_REF. Only use |
| offset and name of symbol. This allows constructors which |
| contain pointers to identical string literals to be uniqued. |
| |
| * loop.c (loop_optimize, init_loop): Moved call to |
| gcc_obstack_init() from loop_optimize() to init_loop(). |
| |
| * reload1.c (reload, init_reload): Moved call to |
| gcc_obstack_init() from reload() to new function init_reload(). |
| |
| * toplev.c (compile_file): Call new function init_reload(). |
| |
| Mon Jun 24 16:05:57 1991 Jim Wilson (wilson at wookumz.gnu.ai.mit.edu) |
| |
| * stmt.c (expand_end_stmt_expr): Fix typo in comment. |
| |
| * reload1.c (modes_equiv_for_class_p): Only fail if registers in |
| CLASS that can hold ALLOCATE_MODE can't also hold OTHER_MODE. Do |
| not fail for the reverse test. ALLOCATE_MODE is always a larger |
| or same size mode as OTHER_MODE, and will be the mode that reload |
| uses when allocating spill registers. Rewrite comments to explain |
| new behaviour. |
| (reload): Change call to modes_equiv_for_class_p to match new |
| semantics. |
| |
| * combine.c (simplify_shift_const): When simplifying (ashiftrt |
| (ashift inner_const_int) const_int), was checking the wrong number of |
| high order bits of inner_const_int. Also correct typos in comments. |
| |
| * c-convert.c (convert_to_integer): Must also check ARG1 for |
| unsignedness, because ARG0 could be a constant when EXPR is a |
| MINUS_EXPR. |
| |
| * combine.c (try_combine): When splitting, it is not safe to use |
| I2DEST if it is referenced by NEWPAT. |
| |
| * combine.c (distribute_notes): After converting REG_DEAD notes to |
| REG_UNUSED notes, clear PLACE if it already has a REG_UNUSED note, |
| to prevent adding a duplicate REG_UNUSED note. |
| |
| * gcc.texinfo (SIGNED_CHAR_SPEC): Document. |
| |
| Mon Jun 24 10:02:32 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cse.c (cse_set_around_loop): Ensure the insn we find in front |
| of the loop does the set in the proper mode. |
| |
| * optabs.c (expand_float): Always do conversions to FMODE in the |
| signedness of the input. |
| |
| * reload.c (find_reloads, find_reloads_toplev): If reg_equiv_address |
| is not a constant address, copy it in case it is shared. |
| |
| * reload1.c (eliminate_regs): Copy reg_equiv_memory_loc in case |
| it is shared and we make a reload inside it. |
| |
| * stupid.c (stupid_mark_refs): Registers that aren't used must die |
| in the insn after their birth so they conflict with other outputs. |
| |
| * vax.md: Replace patterns to convert (and (ashiftxx)) |
| into (and (rotatexx)) with the patterns that are actually made |
| by combine. |
| We can allow offsettable addresses for operand 0 and it is not |
| early-clobber. |
| |
| * out-rs6000.c (secondary_reload_class): Correctly interpret result of |
| true_regnum. |
| |
| * out-rs6000.c (output_toc): Write FP constants in TOC. |
| * tm-r6000.h (TARGET_FP_IN_TOC): New flag. |
| (TARGET_SWITCHES): Add -mfp-in-toc and -mno-fp-in-toc. |
| (TARGET_DEFAULT): -mfp-in-toc is the default. |
| (ASM_OUTPUT_SPECIAL_POOL_ENTRY_P): FP constants may be put in the TOC. |
| |
| Mon Jun 24 00:52:44 1991 James Van Artsdalen (james at bigtex.cactus.org) |
| |
| * out-i386.c (output_fix_trunc): If the dest operand mentions the |
| stack pointer, then we must adjust it to account for the temporary |
| space we allocate on the stack here. |
| |
| Sat Jun 22 07:24:33 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cse.c (cse_set_around_loop): Fix typo in call to note_mem_written. |
| |
| * emit-rtl.c (reorder_insns): Correctly handle case when AFTER is last |
| insn. |
| |
| * expr.c (expand_expr, case COND_EXPR): Correctly handle X ? A : X + 1. |
| Previous change called invert_truthvalue which can modify EXP; we now |
| call it a second time to undo its action if do_store_flag fails. |
| |
| Sat Jun 22 02:37:59 1991 James Van Artsdalen (james at bigtex.cactus.org) |
| |
| * cse.c (cse_set_around_loop): Don't try to initialize an |
| automatic structure. |
| |
| * reg-stack.c (compare_for_stack_reg): If both operands to a |
| compare are the same stack reg, don't process death on the second. |
| |
| * i386.md (all float patterns): Don't allow constants in the |
| operand predicates. |
| (all patterns using convert_387_op): Split patterns into one using |
| FLOAT and another using FLOAT_EXTEND. |
| |
| Fri Jun 21 20:37:03 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * sched.c (line_note, line_note_head): New vectors for use when |
| dealing with line-number notes. |
| (unlink_notes): Put line-number notes in LINE_NOTE for reuse. |
| (schedule_block): Just before reordering the insns, walk the insns |
| and record the line-number note in effect for each one. When |
| reordering is complete, restore the line-number notes as needed. |
| (schedule_insns): When debugging information is present, allocate |
| and initialize line_note and line_note_head. After scheduling, |
| walk the insns to delete redundant line-number notes. |
| |
| Fri Jun 21 19:54:29 1991 Jim Wilson (wilson at wookumz.gnu.ai.mit.edu) |
| |
| * old-sparc.c, out-old-sparc.c, tm-old-sparc.h: Delete obsolete |
| files. |
| |
| * loop.c (loop_number_exit_labels): Expand comment. Mention that |
| returns are not included because all bivs and givs are pseudos and |
| hence must be dead after a return. |
| |
| Fri Jun 21 07:10:56 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * combine.c (subst, case PLUS, MINUS): Remove cases for things like |
| (x-y)+y; now done in simplify_binary_operation. |
| * cse.c (simplify_unary_operation): Handle (sign_extend (truncate ..)) |
| as used in casesi patterns. |
| (simplify_binary_operation, case PLUS, MINUS): Don't do most |
| simplifications if IEEE floating-point. |
| Add cases for things like (x-y)+y. |
| (fold_rtx): Replace PC with LABEL_REF if we are immediately in |
| front of a jump table. |
| Move code to apply associative law to after we have folded the |
| operands. |
| (fold_rtx, case MEM): Fix errors in checking for index of jump |
| table being out of range. |
| For ADDR_DIFF_VEC, return a MINUS or (truncate (minus L1 L2)). |
| (fold_rtx, case PLUS): If we have (plus X (label_ref L)), see |
| if X is equivalent to (minus L1 L2). |
| (cse_insn): Put (minus L1 L2) in `src_const' so it gets in a |
| REG_EQUAL note and gets put in the hash table. |
| If we are branching to a jump table, we are really branching to |
| immediately after the jump table |
| Remove special-case kludge for ADDR_DIFF_VEC; now handled properly. |
| |
| * vax.md (casesi): Make pattern agree with machine instruction; |
| specifically, index is multiplied by two and the comparison is LEU, |
| not LE. |
| |
| * cse.c (equiv_constant): If X is a one-word SUBREG of a larger |
| quantity, use `lookup_as_function' to see if it is equivalent |
| to a CONST_INT. |
| |
| * jump.c (squeeze_notes): No longer static. |
| * loop.c (find_and_verify_loops): Need to call squeeze_notes when |
| moving block of code (see last change). |
| |
| * reload.c (find_reloads): When forcing constant to memory, |
| set recog_operand to the result of find_reloads_toplev. |
| |
| * combine.c (subst, case PLUS): Add (c1 - a) + c2 -> (c1+c2) - a. |
| (subst, case MINUS): Use simplify_binary_operation rather than |
| making CONST_INT from subtraction of two INTVAL's to ensure it |
| gets truncated as appropriate for its mode. |
| Add (c1 - (c2 - a)) -> (c1-c2) + a. |
| |
| * a29k.md (negdf2): Use operand_subword_force, not operand_subword. |
| (movsf): Use operand_subword, not gen_lowpart. |
| |
| * out-rs6000.c (u_short_cint_operand): New function. |
| (print_operand): Support auto-decrement. |
| |
| * tm-rs6000.h (OVERRIDE_OPTIONS): Force profiling off. |
| (PREFERRED_RELOAD_CLASS): Return NO_REGS for real CONST_DOUBLE. |
| (HAVE_PRE_DECREMENT): Define this. |
| (GO_IF_LEGITIMATE_ADDRESS, GO_IF_MODE_DEPENDENT_ADDRESS): |
| Support PRE_DEC. |
| |
| * rs6000.md (zero_extendxx): Use rlinm, not andil so we avoid |
| clobbering cr0. |
| (arith-and-record patterns): Correct some bad operand numbers. |
| Put SImode output as operand 0 to improve register tying. |
| (andsi): Prefer rlinm over andil and andiu. |
| (load/store-with-update): Add patterns for these instructions. |
| (allocate_stack): New, replaces stack probe. |
| (add-and-compare): New patterns, with define_split. |
| (subtract-one-and-jump): Allow outputs anywhere; handle with |
| match_scratch and define_split. |
| |
| * stmt.c (expand_end_stmt_expr): If `last_expr_value' is 0, set it |
| to const0_rtx. |
| |
| * regclass.c (reg_n_sets): Move definition to before use. |
| |
| * jump.c (find_cross_jump): Don't try to substitute REG_EQUAL |
| values unless they are constants. |
| |
| Fri Jun 21 02:37:59 1991 James Van Artsdalen (james at bigtex.cactus.org) |
| |
| * reload1.c (reload): Don't clear after_call for each insn. |
| |
| Sun Jun 16 17:28:43 1991 James Van Artsdalen (james at bigtex.cactus.org) |
| |
| * reload1.c (reload, reload_as_needed, choose_reload_regs): Enable |
| code to avoid return register when SMALL_REGISTER_CLASSES defined. |
| |
| * final.c (final_scan_insn): Don't look for no-op moves if |
| processor has STACK_REGS. |
| |
| * hard-reg-set.h (GO_IF_HARD_REG_EQUAL): New macro. |
| |
| * jump.c (cross_jump_death_matters): New variable. |
| (find_cross_jump): If processor has STACK_REGS, compare death |
| notes if they matter. |
| |
| * toplev.c (compile_file, rest_of_compilation): Support new |
| stack-regs conversion pass. |
| (main, compile_file, rest_of_compilation): Add support for -dk to |
| dump after stack-regs conversion. |
| * reg-stack.c: New file. Implements stack-regs conversion pass. |
| * Makefile.in (reg-stack.o): New file. |
| |
| * tm-i386.h (STACK_REGS): New macro. |
| (all register macros): Define all eight float point registers. |
| (HARD_REGNO_NREGS): Only one float reg is needed for any mode. |
| (HARD_REGNO_MODE_OK): Move code here from out-i386.c. |
| (FIRST_STACK_REG,LAST_STACK_REG): New macros. |
| (ARG_POINTER_REGNUM): Move to reg 16. |
| (FP_REGNO_P): Recognize all float regs. |
| (QI_REG_P): New macro. |
| (STACK_REG_P,NON_STACK_REG_P,STACK_TOP_P): New macros. |
| (PRESERVE_DEATH_INFO_REGNO_P): Delete. |
| (OVERLAPPING_REGNO_P): Delete. |
| (CONST_OK_FOR_LETTER_P): Recognize constant mask for byte or word. |
| Recognize constant 0..3 for `lea' shifts. |
| (CONST_DOUBLE_OK_FOR_LETTER_P): |
| (PREFERRED_RELOAD_CLASS): Don't put CONST_DOUBLE in float regs. |
| QImode must go in class Q_REGS. Float regs can't hold MODE_INT. |
| (MOVE_RATIO): New macro. |
| (SHIFT_COUNT_TRUNCATED): Delete. Bit opcodes don't truncate. |
| (RTX_COSTS): New macro. |
| (CONST_COSTS): Make constants cheaper. |
| (QI_HIGH_REGISTER_NAMES): Renamed from QI_REGISTER_NAMES_TOP. |
| (INSN_CLOBBERS_REGNO_P): Delete. |
| (FP_TOP,RETCOM,POP_ONE_POP,FP_CALL1,FP_CALL): Delete. |
| |
| * out-i386.c (fp_pop_level): Delete. |
| (fp_call_internal, output_asm_insn_double_reg_op, via_memory, |
| fp_store_sf,fp_pop_sf,fp_store_df,fp_pop_df,fp_pop_int, |
| fp_push_sf,fp_push_df,output_movsf,output_movdf,output_movf, |
| top_dead_p,call_top_dead_p,fp_top_dead_p1,mentioned_fp_top): Delete. |
| (hard_regno_mode_ok): Moved to tm-i386.h. |
| (qi_high_reg_name): New variable. |
| (output_op_from_reg, output_to_reg): New function. |
| (singlemove_string,output_move_const_single): No longer static. |
| (singlemove_string): Use correct operand number in `push' string. |
| (standard_80387_constant_p): Use recommended method to extract |
| float from CONST_DOUBLE. |
| (PRINT_REG): Add 'h' for "high" register names, 'y' for "st(0)". |
| (print_operand): Code 'z' prints no size suffix for stack regs. |
| Print DImode suffix as "ll", not just "l". |
| (output_fix_trunc): New argument `insn'. Generalize to output to |
| MEM or REG. Return "char *" like other output routines. |
| Generalize for SImode or DImode output. |
| (binary_387_op,convert_387_op,float_op,fix_op,shift_op): New |
| match_operator predicates. |
| (output_387_binary_op,output_float_compare): New functions. |
| |
| * i386.md (all MODE_FLOAT patterns): Replace with new code to use |
| all FPU registers. |
| (all patterns): Use AS2 and AS1 macros where possible, for |
| eventual support of Intel syntax output. |
| (tstM): Don't initialize operands unless we need to. |
| (cmpM): Choose operange order in output for speed on i386. |
| (logical test patterns): The operands commute. If possible, |
| SImode tests should use just QImode. |
| (movstrictM): New patterns. |
| (movqi): Don't allow a constant of unknown value into Q_REGS. |
| (`lea' pattern): Move after addsi3. |
| (addsi3): Do three operand adds with `lea'. |
| (divsi3,divhi3,udivsi3,udivhi3): Delete in favor of u?divmodM4. |
| (divqi3,udivqi3): Remove earlyclobber for operand 0. |
| (andM3): Define three operand ANDs for 255 and 65535 using zero |
| extend opcode. Also directly do an AND in the second byte of a |
| register. |
| (iorM3,xorM3): Do byte ior instead of word where possible. |
| (xorqi3): Allow operands[2] from MEM. |
| (ashlsi3): Allow three-operand shift of 0..3 with `lea' opcode. |
| (lshlM3): Redundant, delete. |
| (shift & rotate patterns): Print %0 as destination operand. |
| (bit recognizers): New patterns to set, clear and compliment. |
| (call insns): Use "%P" code for targets to support Intel syntax. |
| (movstrsi): Express changes to the operands instead of just |
| clobbering them. Don't accept non-constant move count, as our |
| code isn't as efficient as a library call. |
| |
| Thu Jun 20 13:51:02 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cse.c (cse_insn): If we fold a conditional or computed branch to an |
| unconditional branch, it is now not in the normal format for an |
| unconditional branch, and it only has one set, delete it and |
| re-emit it. |
| Whenever we make an unconditional branch, set `cse_skip_to_next_block' |
| and do nothing else. |
| (cse_basic_block): Increment LABEL_NUSES on TO if it is a label |
| so it won't go away while we are using it as a stopping point. |
| If we are done with this block (`cse_skip_to_next_block' nonzero), |
| pretend we just did the insn before TO. |
| Decrement LABEL_NUSES of TO if it is a label; if it became zero, |
| delete it and try to extend the basic block. |
| |
| * reload.c (find_reloads): Fix typo in check for no alternatives |
| found. |
| |
| * combine.c (reg_significant, significant_mode): New vars. |
| (combine_instructions): Allocate and initialize reg_significant. |
| (set_significant): New function. |
| (significant_bits, case REG): Use reg_significant, if non-zero |
| as the significant bits of a register. |
| |
| * loop.c (n_times_set): Define -2 to mean that a register is |
| an candidate to be moved and is a constant. |
| (scan_loop): Set n_times_set to -1 or -2 as appropriate. |
| (regs_match_p): No need to check REG_FUNCTION_VALUE_P. |
| A register and a constant can be equal if the register is known |
| equivalent to the constant. |
| (invariant_p): Check n_times_set < 0, not == -1. |
| |
| * rtl.h (REG_LOOP_TEST_P): New macro. |
| * jump.c (duplicate_loop_exit_test): Mark registers used only in |
| loop exit test. |
| * cse.c (cse_around_loop, cse_check_loop_start, cse_set_around_loop): |
| New functions. |
| (cse_end_of_basic_block): Add new arg to say if we are being called |
| after loop.c has run; if we are being called after loop.c, we can |
| ignore NOTE_INSN_LOOP_ENDs. |
| (cse_main): Accept new AFTER_LOOP arg; pass to cse_end_of_basic_block. |
| If we are called before loop.c, see if we can cse around to the |
| start of a loop. |
| * toplev.c (rest_of_compilation): Tell cse_main if it is being called |
| before or after loop.c. |
| |
| * rtl.h (LABEL_OUTSIDE_LOOP_P): New macro. |
| * loop.h (uid_loop_num): Renamed from luid_loop_num and now |
| maps INSN_UID to loop number instead of INSN_LUID. |
| * loop.c (loop_optimize): Modifications for the above. |
| (find_and_verify_loop): Change luid_loop_num to uid_loop_num. |
| Look for blocks of code ending in an unconditional branch out |
| of the loop surrounded by a conditional branch and try to move |
| such a block out of the loop. |
| (mark_loop_jump): Change luid_loop_num to uid_loop_num. |
| Mark all LABEL_REFs that are outside the current loop, for |
| branch prediction. |
| (strength_reduce, check_dbra_loop): Change luid_loop_num to |
| uid_loop_num. |
| * unroll.c (unroll_loop, find_splittable_{regs,givs}): Likewise. |
| (reg_dead_after_loop, final_{biv,giv}_value): Likewise. |
| |
| * flow.c (reg_n_sets): Don't define this here. |
| * regclass.c (reg_n_sets): Define it here. |
| (reg_scan): Allocate and initialize reg_n_sets. |
| (reg_scan_mark_refs): Count sets of a register in reg_n_sets. |
| |
| * sched.c (reg_known_value_size): New variable. |
| (canon_rtx): Don't look in reg_known_value outside its allocated space. |
| (init_alias_analysis): Initialize reg_known_value_size. |
| |
| * loop.c ({unknown,fixed}_aggregate_altered): Deleted. |
| (loop_store_mems): Replaces loop_store_addrs and loop_store_widths. |
| (loop_optimize): Call init_alias_analysis. |
| (prescan_loop, note_addr_stored): Save all MEMs stored into, rather |
| than just those that appear fixed; save MEMs rather than addresses |
| and widths. |
| (invariant_p): Use true_dependence to see if a MEM is invariant; |
| compare it with all MEMs stored during the loop. |
| |
| * sched.c (memrefs_conflict_p): If XSIZE or YSIZE is zero |
| the object conflict if they have the same base, irregardless |
| of the offsets. |
| |
| * reorg.c (dbr_schedule): Reallocate unfilled_firstobj after |
| freeing memory from the obstack. |
| |
| * reload.c (push_reload): Always reload object inside SUBREG if |
| STRICT_LOW_PART is present. |
| Always set RELOAD_STRICT_LOW to zero; maybe we should get rid of it. |
| |
| * reload.c (make_memloc): Copy the address if it varies to avoid |
| potential sharing problems. |
| |
| * global-alloc.c (hard_reg_copy_preferences): New var. |
| (global_alloc): Allocate and initialze it. |
| (prune_preferences): Prune it. |
| (find_reg): Try preferences in hards_reg_copy_preferences first, |
| then hard_reg_preferences. |
| (set_preference): Set bit in hard_reg_copy_references, if appropriate. |
| |
| * emit-rtl.c (try_split): If we are splitting a JUMP_INSN, copy |
| JUMP_LABEL from the old to new insn update the count of that label. |
| |
| * cse.c (lookup): Always call exp_equiv_p unless we have a REG. |
| |
| * cse.c (insert): If we are making a register equivalent to a |
| constant that was already equivalent to a constant, update |
| qty_const_insn. |
| (cse_insn): Don't do it here. |
| * cse.c (fold_rtx): Always call simplify_unary_operation. |
| |
| * cse.c (record_jump_equiv): Don't get primary elements for OP0 and |
| OP1 since they might not be valid. |
| |
| * loop.c (get_condition): Accept new arg, EARLIEST that is a pointer |
| to where we place the earliest insn used to form the condition. |
| Check for comparison with CC0 in main loop, not earlier. |
| Never return condition involving CC0. |
| (get_condition_for_loop): Call get_condition with new arg. |
| * jump.c (jump_optimize): When we make store-flag insn, put new |
| insns before earliest insn used to form condition and use new |
| psuedo as target, which we copy into VAR immediately after the insn |
| that currently sets VAR. |
| Turn off "if (...) x = 1; else {...} if (x) ..." code; it is not |
| correct and can't be easily fixed. |
| (get_label_{before_after}): Use {prev,next}_nonnote_insn. |
| |
| * jump.c (jump_optimize): Don't interpret NOOP_MOVES as meaning |
| "after_reload"; check reload_completed instead. Don't pass NOOP_MOVES |
| to functions that aren't actually trying to noop moves. |
| (follow_jumps, tension_vector_labels): Don't accept AFTER_RELOAD arg; |
| check reload_completed instead. |
| |
| * combine.c (try_combine): Don't check that we don't have a |
| single_set when trying to replace a SET_DEST in a PARALLEL in I2. |
| (simplify_and_const_int): Always do the AND in the mode passed. |
| (significant_bits, case DIV and UDIV): Nothing special known |
| about low-order bits here. |
| (simplify_shift_const, shift cases): Don't go into infinite loop if |
| we combine two shifts in the same direction. |
| |
| * c-parse.y, cplus-parse.y, objc-parse.y (set_yydebug): Move to |
| end of file so we don't have a reference to yydebug after its |
| definition; also delete duplicate declaration. |
| |
| Thu Jun 20 09:08:21 1991 Tom Wood (wood at geech.gnu.ai.mit.edu) |
| |
| * local-alloc.c (block_alloc): Fixed typo in last edit. |
| |
| Wed Jun 19 17:05:52 1991 Jim Wilson (wilson at wookumz.gnu.ai.mit.edu) |
| |
| * reload.c (push_reload): Verify reload_in[i] exists before using |
| GET_CODE on it. |
| |
| * m88k.md: USE insns must be immediately before CALL_INSNs to work |
| properly, otherwise sched.c and reorg.c will not associate them will |
| the CALL. |
| |
| * unroll.c (calculate_giv_inc): Accept constant increments |
| represented as a LO_SUM. |
| |
| * flow.c (mark_used_regs): Don't put a REG_DEAD note on insns that |
| already have a REG_UNUSED note. This makes it consistent with |
| combine.c. |
| * combine.c (distribute_notes): If a REG_UNUSED reg is no longer |
| set by an insn, but is still used by the insn, then must convert |
| the REG_UNUSED note to a REG_DEAD note. |
| |
| * gcc.c (SIGNED_CHAR_SPEC): Put ifndefs around it, so that it can |
| be overriden by a definition in the tm.h file. |
| |
| * cse.c (cse_insn): Add missing third parameter to find_reg_note calls. |
| |
| * tm-arm.h (INIT_CUMULATIVE_ARGS): Take LIBNAME as third argument. |
| |
| * combine.c (can_combine_p): Remove extra argument in call to |
| find_reg_note. |
| |
| * rtlanal.c (find_regno_note): Verify that the note contains a |
| REG before checking its REGNO. |
| |
| * cse.c (canon_reg): Fix spacing/punctuation error. |
| * recog.c (constrain_operands): Likewise. |
| * tree.h: Likewise. |
| * varasm.c (Assemble function): Likewise. |
| |
| Wed Jun 19 13:14:22 1991 Tom Wood (wood at geech.gnu.ai.mit.edu) |
| |
| * local-alloc.c (block_alloc): When counting instructions, abort if |
| a loop is detected. Improperly threaded insns are easy to produce |
| when working on the scheduler. |
| |
| Sat Jun 15 06:13:11 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * combine.c (simplify_and_const_int, case ASHIFTRT): Avoid infinite |
| loop if simplify_shift_const doesn't do anything. |
| |
| Thu Jun 13 09:05:12 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * m88k.md (decrement_and_branch_until_zero): Add this insn. |
| |
| Thu Jun 13 07:32:37 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * explow.c (plus_constant): Fix error in last change; CONST case |
| wasn't handled correctly. |
| |
| * tm-m68k.h (CONST_CONSTS): Constants between -7 and -1 are cheap |
| because of subq. |
| |
| * m68k.md (dbra): Operand 0 should have '+' constraint, not '='. |
| |
| * expmed.c (store_fixed_bit_field): Clean up some confusion between |
| targets and results in expand_binop calls. |
| |
| * local-alloc.c (optimize_reg_copy): Fix several typos relating to |
| status updating. |
| Correctly handle the case where DEST dies before SRC. |
| Fix some comments that had SRC and DEST backwards. |
| |
| * combine.c (can_combine_p): Swap order of args of && to avoid |
| unnecessary calls to use_crosses_set_p. |
| (simplify_and_const_int, case SUBREG): Make code agree with comment. |
| |
| * emit-rtl.c (operand_subword): Avoid compilation warning. |
| |
| * expmed.c (store_fixed_bit_field): Don't use OP0 as SUBTARGET |
| if it is a MEM and -fforce_mem was specified. |
| |
| * expmed.c (emit_store_flag): After scc insns, convert to wider |
| mode using unsigned conversion if STORE_FLAG_VALUE is positive. |
| |
| * expmed.c (init_expmed): Use mode of size BITS_PER_WORD instead |
| of SImode. |
| (store_bit_field, extract_bit_field): Replace references to SImode |
| with MAXMODE. |
| (store_fixed_bit_field, extract_fixed_bit_field): Don't use explicit |
| modes; use get_best_mode instead. |
| (store_split_bit_field, extract_split_bit_field): Use operand_subword |
| and mode_for_size instead of making SUBREGs and using SImode. |
| |
| * stor-layout.c (get_best_mode): Allow LARGEST_MODE to be VOIDmode, |
| in which case we can use any appropriate mode. |
| |
| Wed Jun 12 16:32:37 1991 Michael Tiemann (tiemann at pogo.gnu.ai.mit.edu) |
| |
| * cplus-decl.c (init_decl_processing): Compensate for tm-sparc.h |
| change to WCHAR_TYPE handling. |
| |
| Wed Jun 12 10:19:13 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * tm-sparc.h (WCHAR_TYPE): Must be "short unsigned int". |
| |
| * combine.c (subst, make_extraction, simplify_shift_const): Don't |
| change mode of volatile MEM; replaces similar change of June 1st. |
| * function.c (fixup_var_refs_1, optimize_bit_field): Likewise. |
| * recog.c (validate_replace_rtx_1): Likewise. |
| |
| Tue Jun 11 22:09:28 1991 Michael Tiemann (tiemann at cygint.cygnus.com) |
| |
| * expr.c (expand_expr, case COND_EXPR): Expressions of both the form |
| X ? A + 1 : A and X ? A : A + 1 were being done, but only the former |
| was being handled correctly. |
| |
| Tue Jun 11 12:13:53 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * recog.c (validate_replace_rtx_1): If putting a CONST_INT in a |
| ZERO_EXTEND or SIGN_EXTEND, try to simplify the operation or fail; |
| the semantics of the operation require a non-VOIDmode argument. |
| |
| * cse.c (delete_dead_from_cse): Don't delete last insn in a libcall. |
| |
| * explow.c (allocate_dynamic_stack_space): Don't clobber SIZE when |
| rounding it. |
| |
| * fold-const.c (fold, case COND_EXPR): Ensure we always return an |
| expression in the correct type. |
| |
| * expr.c (emit_push_insn): Don't need to put X in register if it |
| is constant; operand_subword_force can do so if needed. |
| |
| * reload.c (find_reloads): Simplify nested `if' statements. |
| * recog.c (constrain_operands): Likewise. |
| |
| * jump.c (mark_jump_label): Fix typo (extra paren) in last change. |
| |
| Tue Jun 11 10:03:08 1991 Micheal Tiemann (tiemann at pogo.gnu.ai.mit.edu) |
| |
| * collect2.c: New file. |
| |
| * sched.c (memrefs_conflict_p): Finish removing ASHIFT case. |
| |
| * emit-rtl.c (operand_subword): Change test of BITS_PER_WORD < |
| HOST_BITS_PER_WORD from compile-time to run-time. |
| * expr.c (emit_push_insn): Ditto. |
| * recog.c (constrain_operands): Ditto. |
| * reload.c (find_reloads): Ditto. |
| |
| * jump.c (jump_optimize): Add `continue' after deleting INSN in case |
| where further attempts to optimize the insn are invalid. |
| (mark_jump_label): Don't crash if NEXT == 0. |
| |
| Tue Jun 11 09:14:05 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * out-m88k.c (legitimize_operand): New function to convert |
| CONST_DOUBLE to SFmode when possible. |
| * m88k.md (cmpdf, adddf3, subdf3, muldf3, divdf3): Use it. |
| * tm-m88k.h: Declare it. |
| |
| * xm-m88k.h (OBSTACK_CHUNK_SIZE): For DG/UX at least, the default |
| value results in a perfect checkerboard. |
| |
| Tue Jun 11 07:23:45 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expr.c (expand_expr, case FLOAT_EXPR, FIX_EXPR): Don't try to |
| do any partial conversions here; expand_fix and expand_float now |
| handle all modes. |
| * optabs.c (fixtab, fixtrunctab, floattab): Table now contains |
| all modes. |
| (can_fix_p, can_float_p): Use mode as index in tables. |
| (init_fixtab, init_floattab): Likewise. |
| Add support for QImode and HImode operations. |
| (expand_float): Rework to remove dependendence on specific modes. |
| Can only use REAL_VALUE_LDEXP in certain configurations. |
| (expand_fix): Likewise. |
| If can't do operation unsigned, or signed into wider mode, emit a |
| sequence that compares operand with 2**(N-1) and, if larger, |
| subtracts 2**(N-1), converts, and adds it back. |
| Protect from queue and force not memory at start. |
| * m88k.md (fixuns_truncdfsi2, fixuns_truncsfsi2): Deleted; now done |
| in expand_fix in optabs.c. |
| |
| * combine.c (expand_field_assignment): Convert SET_SRC to mode of |
| INNER. |
| (simplify_shift_const, case ASHIFTRT): Don't use undefined initial |
| value of MASK. |
| |
| * explow.c: Include insn-config.h, recog.h, and insn-codes.h. |
| (allocate_dynamic_stack_space): Rework to be more precise in required |
| alignment. Must maintain alignment of stack to STACK_BOUNDARY at |
| all times (it must not be momentarily misaligned) and must align |
| returned address to BIGGEST_ALIGNMENT. |
| * Makefile.in (explow.o): Show new includes. |
| |
| Tue Jun 11 07:22:54 1991 Matthew Self (mself at next.com) |
| |
| * m68k.md: Change incorrect reference to -m68040-fp to -m68040-only. |
| Fix several spelling errors. |
| |
| * m68k.md (fix_trunc*f*i2): New insn's to replace fintrz on the |
| '040. These emit a sequence of insn's to change the rounding mode |
| to round-to-zero, perform the truncation, and restore the rounding |
| mode. |
| |
| Mon Jun 10 09:57:31 1991 Michael Tiemann (tiemann at cygint.cygnus.com) |
| |
| * c-lang.c (GNU_xref_{begin,end}): Add stub functions for xref info. |
| |
| * cplus-decl.c (record_builtin_type): Add support for handling |
| builtin types' nicknames (e.g. "unsigned long" for "long unsigned |
| int"). |
| |
| * expmed.c (struct algorithm): Change array size from BITS_PER_WORD |
| to MAX_BITS_PER_WORD. |
| gcc.texinfo: Document MAX_BITS_PER_WORD. |
| |
| Mon Jun 10 07:45:17 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * combine.c (try_combine): When making an I1 from an I2 that is |
| a PARALLEL, give the new I1 the same INSN_UID as I2. |
| |
| * recog.c (constrain_operands, case 'p'): Pass operand mode |
| (from match_operand) to strict_memory_address_p. |
| |
| * m68k.md (andsi3): bclr does not set the condition codes in the |
| standard way. |
| |
| Sun Jun 9 11:16:24 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reload.c (find_reloads): Swap preferred_class and pref_or_nothing |
| when we swap commutative operands. |
| |
| * combine.c (subst, simplify_shift_const): Treat UDIV and MULT |
| with a second operand of a constant that is a power of two as the |
| appropriate shift if it feeds or is fed by a shift. |
| |
| * expmed.c (expand_divmod): When searching for the best mode to |
| perform the computation, take into account the fact that we sometimes |
| do a shift, not a divide. |
| |
| * expmed.c (emit_store_flag): Correctly handle "a = b < 0;" if A |
| is narrower than B. |
| Don't check for STORE_FLAG_VALUE equal to just the sign bit of |
| OP0 if the width of its mode is larger than HOST_BITS_PER_INT. |
| Use switch rather than if/elseif/elseif. |
| |
| * combine.c (simplify_shift_const, shift cases): We were not forming |
| the mask correctly when VAROP is a LSHIFTRT and narrower than X; |
| simplify the mask formation by using significant_bits and |
| simplify_binary_operation. |
| |
| * reload.c (make_memloc): Copy RTX_UNCHANGING_P from REG to MEM. |
| (find_reloads_address, find_reloads_address_1): Don't shortcut |
| reloading the address in reg_equiv_address; always call |
| find_reloads_address on it. |
| |
| * recog.c (constrain_operands, case 'p'): Validate address if |
| testing strictly. |
| |
| * out-alliant.c, out-m68k.md (output_move_double): Extraction of |
| parts of CONST_INT was backwards; these machines are words-big-endian. |
| |
| Sat Jun 8 12:19:26 1991 Michael Tiemann (tiemann at cygint.cygnus.com) |
| |
| * sparc.md: Remove special-case shift insns which load and shift |
| memory-based operands. Combine now does this for us. Also change |
| abs patterns so that they consistently print the negation followed |
| by the mov on a single line. |
| |
| * reload1.c (choose_reload_regs): Cast `enum reg_class' values to |
| `int' when using them as array indicies. |
| |
| * gnulib2.c (LONG_TYPE_SIZE): Don't inherit the definition of |
| LONG_TYPE_SIZE from tm.h, since that may be target_flag-specific. |
| Instead synthesize the value from `sizeof (long)'. |
| |
| * cplus-gc.c (build_m_desc): Figure out whether the i_desc should |
| constitute a defn of its type or not. Analogous to May 26 change |
| for instance variables. |
| |
| Sat Jun 8 07:11:26 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * combine.c (simplify_and_const_int): Detect and remove redundant |
| alignment operation. |
| (significant_bits, case REG): Realize that the stack pointer might |
| be aligned. |
| (significant_bits, case PLUS, MUNUS, MULT, DIV, UDIV): Track low-order |
| bits of zero as well as high-order zero bits (so we detect alignment |
| operations). |
| (record_value_for_reg): If updating a register, try to substitute its |
| old value into the expression for better tracking of values. |
| |
| * a29k.md (fmac/dmac): Delete incorrect patterns. |
| |
| Thu Jun 6 19:08:29 1991 Sean Fagan (sef at cygint.cygnus.com) |
| |
| * final.c (output_source_line): Say we are on line number 1 if |
| sdb_begin_function_line is -1, not 0. |
| |
| Thu Jun 6 08:01:05 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * stor-layout.c (get_best_mode): Don't assume GET_MODE_SIZE (SImode) |
| is UNITS_PER_WORD; if SLOW_BYTE_ACCESS defined, try to return the |
| mode whose size is UNITS_PER_WORD. |
| |
| * sparc.md (floatsisf2, floatsidf2): Add missing mode for |
| operand 1; use const_int_operand as predicate. |
| |
| * cse.c (canon_reg): Add arg INSN; if replacing a pseudo with a hard |
| register or vice versa, use validate_change to ensure the insn |
| remains valid. |
| All callers changed; most pass zero since they validate replacement. |
| (cse_insn): Use validate_change on result of canon_reg when |
| required. |
| |
| * c-common.c (combine_strings): Use WCHAR_BYTES instead of |
| UNIT_PER_WORD for the size of a wide char. |
| |
| * emit-rtl.c (gen_lowpart_common): Always extract integral modes |
| from integer CONST_INTs and CONST_DOUBLEs. |
| |
| * integrate.c (copy_for_inline, copy_rtx_and_substitute): Don't |
| try to extract a float from a fixed-mode CONST_DOUBLE. |
| (copy_for_inline, copy_rtx_and_substitute, restore_constants): |
| Declare target of REAL_VALUE_FROM_CONST_DOUBLE to be REAL_VALUE_TYPE. |
| |
| * local-alloc.c (update_equiv_regs): Fix typo in testing |
| reg_basic_block. |
| |
| Wed Jun 5 09:15:09 1991 Ken Raeburn (raeburn at watch.com) |
| |
| * Eliminate unneeded binding levels when overloading template class |
| names: |
| * cplus-pt.c (overload_template_name): Accept second argument |
| classlevel, indicating that new decl should be pushed into current |
| class binding level; otherwise, assume current level is okay to use. |
| Callers changed. |
| (undo_template_name_overload): New second argument classlevel |
| indicates where binding for variable was made. Callers changed. |
| |
| * cplus-parse.y (structsp): Call undo_template_name_overload in all |
| appropriate cases. |
| |
| * Get interface/implementation flags set properly on methods in |
| class templates, and use it: |
| * cplus-lex.c (store_pending_inline): If inside a class, walk up |
| through nested classes to top level looking for template parameters. |
| For class methods, use current interface flag settings rather than |
| flags for class. |
| (extract_interface_info): No longer static. |
| (do_pending_inlines, process_next_inline): Call |
| extract_interface_info to get interface flags set properly after |
| changing file names. |
| * cplus-pt.c (instantiate_class_template): Ditto. |
| (end_template_instantiation): Ditto. |
| (do_pending_expansions): If interface/implementation flags of |
| containing class are set, use them. |
| * cplus-tree.h (interface_unknown): Added declaration. |
| |
| Wed Jun 5 07:36:44 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reload.c (find_reloads_address): Unshare a MEM if its address is |
| the address of a constant pool location. |
| |
| * optabs.c (expand_binop): Fix typos in multi-word addition; had |
| MODE for SUBMODE. |
| |
| * reload1.c (alter_reg): Correctly delete insn that makes a REG |
| equivalent to a MEM in the case where the MEM is the SET_DEST. |
| |
| * a29k.md (negdf2): Add missing alternative in operands 2. |
| (movdi): Change "i" constraint to "n". |
| Split for constant integer as input; split cannot fail. |
| Correct typo in DEFINE_SPLIT (DFmode for DImode). |
| * out-a29k.c (gen_reg_or_integer_constant_operand): New function. |
| |
| * configure: Fix typo in reference to tm-sun3-nfp.h. |
| |
| Wed Jun 5 06:56:10 1991 Matthew Self (mself at next.com) |
| |
| * c-parse.y, objc-parse.y (attrib): Always pass aligned attribute |
| through. Return $1 on failure rather than NULL_TREE for consistency. |
| |
| * c-common.c (decl_attributes): Warn if requested alignment is not |
| a power of two. Also warn if decl is not a VAR_DECL or a FIELD_DECL, |
| since specifying alignment makes no sense for a TYPE_DECL, and is |
| not implemented for a FUNCTION_DECL. |
| |
| * c-parse.y, objc-parse.y (initdcl, notype_initdcl): Call |
| decl_attributes before finish_decl in order for alignment attribute |
| to take effect. |
| |
| * varasm.c (assemble_variable): Warn if DECL_ALIGN is greater than |
| MAX_OFILE_ALIGNMENT, if defined. This allows errors to be |
| detected with formats like a.out which support a maximum alignment |
| of 4. |
| |
| * c-parse.y, objc-parse.y (component_declarator): Call decl_attributes |
| with correct args. |
| |
| * stor-layout.c (layout_record, layout_union): Do not clamp struct |
| alignment at BIGGEST_ALIGNMENT, since individual fields may have |
| requested greater alignment than this. This check shouldn't have |
| done anything anyway. |
| |
| * c-parse.y (unary_expr): When alignof is applied to an expression, |
| call c_alignof_expr so that we can check DECL_ALIGN instead of calling |
| c_alignof (TYPE_ALIGN (TREE_TYPE (expr))). |
| |
| * c-typeck.c (c_alignof_expr): New function to compute alignof for |
| expr's. Returns DECL_ALIGN for VAR_DECL's and FIELD_DECL's. Also |
| return 1 after reporting error about applying alignof to bitfields. |
| |
| * c-tree.h (c_alignof_expr): Add declaration. |
| |
| * varasm.c (assemble_variable): MAX_OFILE_ALIGNMENT defaults to |
| BIGGEST_ALIGNMENT if not defined in config.h. |
| |
| Wed Jun 5 06:55:12 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * m88k.md (mov*): Change the interface to emit_move_sequence. |
| * out-m88k.c (emit_move_sequence): Similar to the sparc version. |
| |
| * tm-m88k.h (SIZE_TYPE): Specify as unsigned int. |
| |
| * xm-m88k.h (HOST_BITS_PER_LONGLONG): Define. |
| |
| Wed Jun 5 01:45:07 1991 Sean Fagan (sef at cygint.cygnus.com) |
| |
| * sdbout.c (sdbout_symbol): don't output definition information for |
| a nested function inside the parent function; this makes COFF |
| assemblers upset. |
| |
| Tue Jun 4 17:35:13 1991 Sean Fagan (sef at cygint.cygnus.com) |
| |
| * function.c (trampoline_address): make the RTL_EXPR node temporary, |
| not momentary, so that the trampoline_list doesn't become garbage. |
| Fix made by jim wilson (wilson@cygnus.com). |
| |
| Tue Jun 4 09:40:59 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expr.c (move_block_to_reg): Fix typo in last change. |
| |
| * local-alloc.c (update_equiv_regs): Check for reg_n_refs == 2, |
| not loop_depth * 2. |
| |
| * reorg.c (fill_simple_delay_slots): Clear INSN_DELETED_P on insns |
| placed in current_function_epilogue_delay_list. |
| |
| * make-rs6000 (ALLOCA_FLAGS, ALLOCA_FINISH): Add override to |
| compensate for the fact that the RS/6000 C compiler has no -S. |
| |
| * out-rs6000.c (easy_fp_constant): Use operand_subword. |
| (print_operand): Use INT_P and INT_LOWPART to allow accepting both |
| CONST_INT and CONST_DOUBLE for integers. |
| |
| * rs6000.md (floatsidf2, floatunssidf2): Rework these to emit only |
| two insns, each of which has DImode or DFmode operands. Then |
| split the funny DImode insn to generate it. |
| (fix_truncdfsi2, fixuns_truncdfsi2): Surround our call with |
| REG_LIBCALL/REG_RETVAL notes. |
| Use operand_subword. |
| (movsf, movdf): Correctly handle a pseudo passed during reload. |
| Use operand_subword. |
| Split moves involving "easy" FP constants. |
| (subtract-and-branch): Disable for now, to avoid output reload in jump. |
| |
| * tm-rs6000.h (WCHAR_TYPE): Add definition. |
| (INT_REGNO_P): Fix typo; register 31 is a normal register. |
| (LEGITIMATE_CONSTANT_P): The only FP constants that are valid are |
| the "easy" ones. |
| |
| * a29k.md (negdf2): Use XOR when not involving accumulator. |
| Add SCRATCH so we dont use gr122. |
| Handle case where input and output are same register. |
| (negsf2): Use SCRATCH. |
| (DImode operations): Use operand_subword, not gen_{low,high}_part. |
| (movsf, movdf, movdi): Always split if we can look inside CONST_DOUBLE. |
| Use operand_subword. |
| Don't split into separate words in DEFINE_EXPAND. |
| * out-a29k.c (in_operand): Account for fact that integer CONST_DOUBLE |
| is VOIDmode. |
| (extract_subword): Deleted. |
| (print_operand): Add macros INT_P and INT_LOWPART so we can accept |
| either CONST_INT or CONST_DOUBLE. |
| |
| * romp.md (movdi, movdf, negsf2, negdf2): Use operand_subword and |
| operand_subword_force, instead of gen_{high,low}part. |
| Use force_const_mem instead of force_const_double_mem. |
| |
| * m88k.md (movdi): Remove 'F' constraint; 'n' now includes integer |
| CONST_DOUBLE. |
| (anddi3, iordi3, xordi3): Likewise. |
| Use operand_subword to extract individual words. |
| * out-m88k.c (output_load_const_{float,double,dimode}): Use |
| operand_subword. |
| |
| * Makefile.in (emit-rtl.o): Now includes expr.h. |
| * calls.c (expand_call): Pass mode to move_block_to_reg. |
| * combine.c (subst, case SUBREG): Simplify SUBREG of hard register |
| and some SUBREGs of constants. |
| (gen_lowpart_for_combine): If object is desired mode, always return it. |
| Use gen_lowpart_common for most cases; just support MEM and |
| surrounding with a SUBREG here. |
| * cse.c (insert): CONSTANT_P includes CONST_DOUBLE. |
| (fold_rtx): Use MODE for GET_MODE (X). |
| (fold_rtx, case SUBREG): Handle simple cases of folding SUBREGs. |
| (fold_rtx, case MEM): Use operand_subword and gen_lowpart_if_possible |
| to get parts of constant instead of gen_lowpart and gen_highpart. |
| (gen_lowpart_if_possible): Use gen_lowpart_common for most cases. |
| * expr.c: Include expr.h. |
| (gen_lowpart_common): New function, from gen_lowpart. |
| (gen_lowpart): Use gen_lowpart_common for most cases; just handle MEM. |
| (gen_highpart): Deleted. |
| (subreg_lowpart_p): Test WORDS_BIG_ENDIAN in `if', not `#if'. |
| (operand_subword, operand_subword_force): New functions. |
| * explow.c (plus_constant): Handle adding CONST_INT to CONST_DOUBLE. |
| Rework to use switch statement. |
| Remove obsolete OLD_INDEXING code. |
| (plus_constant_for_output): Use plus_constant for most cases. |
| (break_out_memory_refs): Refine which constants get broken out. |
| * expmed.c (store_bit_field, extract_bit_field): Don't use |
| gen_highpart for multi-word fields; instead, loop and use |
| operand_subword. We now support fields more than two words long. |
| (mask_rtx, lshift_value): Just pass high and low words to |
| immed_double_const; it will mask and choose CONST_INT vs. CONST_DOUBLE. |
| * expr.c (convert_move): Use operand_subword instead of gen_highpart. |
| Don't assume GET_MODE_SIZE (DImode) > UNITS_PER_WORD. |
| (move_block_to_reg): Add MODE arg. |
| Use operand_subword_force. |
| (move_block_from_reg): Use operand_subword. |
| (move_block_from_reg, move_block_to_reg, use_rgs): |
| Don't assume GET_MODE_SIZE (SImode) == UNITS_PER_WORD. |
| (emit_move_insn, emit_push_insn): Likewise. |
| Use operand_subword and operand_subword_force. |
| (expand_expr, case INTEGER_CST): Just call immed_double_const. |
| (expand_expr, cases FIX_TRUNC_EXPR, FLOAT_EXPR): Don't assume |
| GET_MODE_SIZE (SImode) == UNITS_PER_WORD. |
| (expand_builtin): Likewise. |
| (do_jump_by_parts_{greater,equality): Likewise. |
| Use operand_subword_force. |
| * expr.h (operand_subword): Remove declaration from here. |
| (validize_mem): Add missing declaration. |
| * final.c (final_scan_insn): If assembler code string is "#", |
| try to split insn. |
| Ignore insns with INSN_DELETED_P set. |
| (alter_subreg): Remove erroneous code for CONST_DOUBLE. |
| (output_addr_const): Integer CONST_DOUBLEs are now VOIDmode. |
| * fold-const.c (add_double): No longer static. |
| * integrate.c (copy_for_inline, copy_rtx_and_substitute): |
| Use validize_mem to validate force_const_mem's result. |
| (subst_constants, case SUBREG): Use operand_subword and |
| gen_lowpart_common instead of gen_lowpart and gen_highpart. |
| (restore_constants): Don't assume all CONST_DOUBLEs are floating. |
| Use validize_mem to validate force_const_mem's result. |
| * optabs.c (expand_binop,, expand_unop): Don't assume |
| GET_MODE_SIZE (SImode) == UNITS_PER_WORD. |
| Use operand_subword_force. |
| (operand_subword): Deleted from here. New version in emit-rtl.c. |
| * recog.c (validate_replace_rtx_1): Check for any constant, |
| not just CONST_INT. |
| (constrain_operands, case 'm', 'o'): Any constant OK if strict < 0. |
| (constrain_operands, case 'E'): Must have host and target word sizes |
| the same. |
| (constrain_operands, case 's', 'n'): CONST_DOUBLE can be integer. |
| * reload.c (find_reloads, case 'm', 'o', 'E', 's', 'n'): Likewise. |
| Don't call force_const_double_mem; use force_const_mem instead. |
| (find_reloads_toplev): Likewise. |
| Use gen_lowpart_common to get low part of constant. |
| * rtl.h (gen_highpart, force_const_double_mem): Deleted. |
| (gen_lowpart_common, operand_subword, operand_subword_force): |
| New declarations. |
| * varasm.c (const_double_chain): Renamed from real_constant_chain. |
| (immed_double_const): For integer constants, perform any needed |
| masking and make either CONST_INT or CONST_DOUBLE. |
| (force_const_double_mem): Deleted; would need a mode arg added |
| which would make it almost identical to force_const_mem. |
| * out-vax.c (split_quadword_operands): Use operand_subword instead |
| of gen_lowpart and gen_highpart. |
| |
| * function.c (find_replacement): New function. |
| (fixup_var_refs_insns): Pass pointer to listhead of (new) |
| fixup_replacement structures; if any entries were pseudos, copy from |
| memory to the pseudo. |
| (fixup_var_refs_1): New arg REPLACEMENTS; provide that arg in |
| recursive calls. |
| Use find_replacements to ensure we don't break any MATCH_DUPs. |
| |
| Tue Jun 4 05:07:53 1991 Michael Tiemann (tiemann at cygint.cygnus.com) |
| |
| * stmt.c (pushcase, pushcase_range): Take new parameter DUPLICATE. |
| Use this to store existing LABEL_DECL if LABEL is a duplicate. |
| * c-parse.y, cplus-parse.y, objc-parse.y, stmt.c: All callers |
| changed. |
| |
| Mon Jun 3 17:19:40 1991 Michael Tiemann (tiemann at cygint.cygnus.com) |
| |
| * cplus-expr.c (decl_in_memory_p): New function. |
| * cplus-typeck.c (mark_addressable): Test `decl_in_memory_p' instead |
| of testing memory_operand, since the DECL_RTL of a decl may be a |
| (MEM ...) by not a valid memory address. |
| |
| * cplus-typeck.c (mark_addressable): When we decide that a static |
| const variable must go to memory, make sure that its rtl is |
| allocated from the correct obstack. |
| |
| * cplus-decl.c (grokdeclarator): Replace undocumented BREAK_C_TAGS |
| #define control with comments explaining why or how it is correct |
| for GNU C++ to break C's notions of what a tag is. |
| |
| * cplus-call.c (convert_harshness): Replace undocumented #if |
| AMBIGUOUS_WORKING control with a comment explaining the actions |
| where this control used to be. |
| |
| Mon Jun 3 15:07:47 1991 Sean Eric Fagan (sef at kithrup) |
| |
| * tm-i386.h (TRAMPOLINE_TEMPLATE): Changed a 040 to 0xe0; |
| this is the proper code for a jmp [%eax] instruction. |
| |
| Mon Jun 3 08:07:42 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cccp.c (initialize_builtins): Install __SIZE__TYPE__, |
| __PTRDIFF_TYPE__, and __WCHAR__TYPE__ as builtins. |
| |
| Sun Jun 2 18:18:19 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * flow.c (mark_set_1): Don't set LAST_MEM_SET from a MEM that has any |
| side-effects (such as auto-inc), not just volatile MEMs. |
| |
| * rtlanal.c (reg_referenced_p): New function. |
| * combine.c (try_combine): Correct test for added_sets_1 to account |
| for case where I1 and I2 both feed I3. |
| (distribute_notes): Don't interpret setting a reg as a use of the |
| reg; use new reg_referenced_p and simplify code. |
| |
| * flow.c (propagate_block): Ensure that LOOP_DEPTH is correct at all |
| insns in a basic block, otherwise reg_n_refs will be set incorrectly. |
| |
| * recog.c (validate_replace_rtx_1): Don't change mode of memory |
| reference that is mode-dependent. |
| Don't make a MEM with a larger mode than original. |
| |
| * combine.c (try_combine): Disable code to check MODES_TIEABLE_P |
| added May 20th and 22nd; this should not be needed now that |
| LIMIT_RELOAD_CLASS has been added to reload. |
| |
| * flow.c (mark_set_1): Allow for the fact that stack pushes don't have |
| REG_INC notes. |
| * local-alloc.c (optimize_reg_copy): Likewise. |
| Don't change lives of hard registers #ifdef SMALL_REGISTER_CLASSES. |
| A USE of a register must not be changed. |
| (validate_equiv_mem): Don't make an equivalence to volatile MEMs. |
| |
| * reorg.c (mark_set_resources): #ifdef PUSH_ROUNDING, mark SP as always |
| set since the insn might have a (pre_dec sp). |
| |
| Sun Jun 2 16:03:31 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * Makefile.in (libg_dir): Variable deleted. |
| (install-gnulib): Don't bother creating libg.a. |
| |
| * cccp.c (size_type_string, etc.): Variables deleted. |
| (special_symbol): Use macros SIZE_TYPE, etc., directly. |
| |
| Sat Jun 1 12:54:05 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * Let tm.h specify types for size_t, ptrdiff_t and wchar_t. |
| (SIZE_TYPE, PTRDIFF_TYPE, WCHAR_TYPE): New params. |
| * cccp.c, c-decl.c: Provide default definitions of the new params. |
| * cccp.c (__SIZE_TYPE__, __PTRDIFF_TYPE__, __WCHAR_TYPE__): Builtins. |
| (special_symbol): Implement them based on new params. |
| * stddef.h (size_t, ptrdiff_t, wchar_t): Declare using those builtins. |
| * c-tree.h (ptrdiff_type_node): Declare variable. |
| * c-decl.c (init_decl_processing): Use *_TYPE params |
| to control setting of sizetype, wchar_type_node and ptrdiff_type_node. |
| * c-typeck.c (pointer_diff): Take result type from ptrdiff_type_node. |
| |
| * configure (target1): Really change / to -. |
| |
| Sat Jun 1 02:49:04 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-lex.c (extract_interface_info): Now non-static. Called |
| whenever INPUT_FILENAME changes. |
| * cplus-pt.c (instantiate_class_template): Call |
| `extract_interface_info' when switching files. |
| * cplus-input.c (getch): Ditto. |
| |
| * combine.c (subst): Don't change the mode of memory access for |
| volatile memory. |
| |
| * tm-sparc.h (CONST_COSTS): Fix typo in computing cost of |
| CONST_DOUBLE for DImode integers. |
| |
| Fri May 31 16:11:57 1991 Ken Raeburn (raeburn at watch.com) |
| |
| * cplus-lex.c (process_next_inline): Set line number and filename if |
| more inline data is to be processed. |
| (store_pending_inline): Treat FUNCTION_TYPE like METHOD_TYPE. Use |
| current_class_type instead of extracting it from method type; the |
| two should be the same, and the latter doesn't work for statics. |
| |
| * cplus-decl.c (start_decl): When constructing templates, use |
| original name of function rather than "mangled" name. Look for |
| FUNCTION_DECL, not FUNCTION_TYPE, when deciding how to push the |
| new decl. |
| (start_method): Default inlining does not apply to template |
| expansions. |
| |
| * cplus-pt.c (pending_template_expansions): Moved declaration to |
| start of file. |
| (tsubst): For FUNCTION_DECL, use original name of source, not |
| mangled name. |
| (instantiate_template): Local variables now non-static. Fill in |
| pending-inline field of new decl, rather than template-info, and |
| chain into either pending-inlines or pending-template-expansions. |
| |
| * cplus-typeck.c (build_x_function_call): If a template is found, |
| treat it as an overloaded declaration. |
| |
| Fri May 31 14:20:45 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * Makefile.in (all.cross): New target. |
| * configure: If cross-compiling, change `ALL' to use all.cross. |
| |
| Fri May 31 11:43:31 1991 Matthew Self (mself at next.com) |
| |
| * tm-next.h (EXTRA_SECTION_FUNCTIONS): |
| Add new constructor and destructor sections. |
| (MAX_OFILE_ALIGNMENT): Define as 2^15 for Mach-O. |
| (ASM_OUTPUT_ALIGN): Use .align, not .even. Allow alignments > 2. |
| (CPP_PREDEFINES): Added -Dm68k since some code expects this. |
| |
| Fri May 31 05:41:51 1991 Michael Tiemann (tiemann at cygint.cygnus.com) |
| |
| * cplus-class.c (pushclass): New argument value for MODIFY accepted. |
| * cplus-decl2.c (build_push_scope): Call `pushclass' with MODIFY == 3. |
| |
| * cplus-decl.c (finish_function): Set TREE_PUBLIC and TREE_EXTERNAL |
| bits on functions according to #pragma interface/implementation, |
| regardless of whether or not the function's inline. This fixes the |
| bug of needless code replication with -fno-inline. |
| |
| Thu May 30 17:39:53 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * expr.c (expand_expr): |
| Don't lose volatility of fields in COMPONENT_REF. |
| |
| Thu May 30 17:36:45 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cse.c (count_reg_usage, delete_dead_from_cse): New functions. |
| * toplev.c (rest_of_compilation): Call delete_dead_from_cse immediately |
| after the first cse pass. |
| |
| * local-alloc.c (validate_equiv_mem_from_store, validate_equiv_mem): |
| New functions, to find cases where a REG is equivalent to a MEM. |
| (optimize_reg_copy): New function. |
| (update_equiv_regs): Call these new functions. |
| Look for a register used in only one basic block being stored into |
| memory. |
| Keep track of loop depth so we can find regs used only once, but |
| inside a loop. |
| * reload1.c (reload): Use single_set when looking for an insn |
| that initializes a register. |
| If making a REG equivalent to a MEM, the insn with SET_DEST being |
| the register isn't always the one making the equivalence, since the |
| equivalence might be occurring due to a store into MEM; in that |
| case set reg_equiv_init to the latter insn. |
| |
| Thu May 30 14:23:01 1991 Ken Raeburn (raeburn at watch.com) |
| |
| * Pending expansions processed at end-of-file can be processed out |
| of order, so freeing the associated data from the obstacks is not |
| possible. |
| * cplus-tree.h (struct pending_inline): New field can_free |
| indicates whether to free the text after processing it. |
| * cplus-lex.c (do_pending_inline, process_next_inline): If |
| can_free flag is set, specify inline-text obstack, otherwise null |
| pointer. |
| (cons_up_default_function): Clear flag. |
| (reinit_parse_for_method): Set it. |
| (store_pending_inline): Clear it when changing obstacks. |
| (pending_template_obstack): Deleted. References changed to use |
| permanent_obstack. |
| |
| * cplus-lex.c (store_pending_inline): Set DECL_PENDING_INLINE_INFO |
| value after swapping obstacks, not before. |
| |
| Thu May 30 07:23:18 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * va-sparc.h: Has to be a char * to be compatible with Sun. |
| i.e., we have to pass a `va_list' to vsprintf. Also, fixed |
| bug in passing vararg structs. |
| |
| Thu May 30 00:32:18 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * configure: Delete Makefile.tem before writing it. |
| |
| * stor-layout.c (layout_record): |
| Ignore PCC_BITFIELD_TYPE_MATTERS for incomplete type. |
| |
| * fixincludes (stdtypes.h): Handle wchar_t like the other types. |
| |
| * function.c (assign_parms): Don't declare args_so_far register. |
| |
| Wed May 29 15:13:05 1991 Ken Raeburn (raeburn at watch.com) |
| |
| * cplus-tree.def (TEMPLATE_PARM_IDX): Deleted. |
| (TEMPLATE_TYPE_PARM): New node type, looks like a type node. |
| (TEMPLATE_CONST_PARM): New node type, looks like a const node. |
| |
| * cplus-tree.h (IDENTIFIER_TYPE_VALUE_PTR): Inlined under gcc. |
| (TYPE_IDENTIFIER_PTR): Ditto. |
| (DECL_NESTED_TYPENAME_PTR): Ditto. |
| (struct lang_type): New bitfield `use_template'. |
| (CLASSTYPE_USE_TEMPLATE): Accessor macro for above. |
| (struct lang_decl): New field `template_info'. |
| (DECL_TEMPLATE_INFO): Accessor macro for above. |
| (TEMPLATE_EXPANSION_NAME_P): Deleted. |
| (push_overloaded_decl_top_level): Added declaration. |
| (TEMPLATE_TYPE_TPARMLIST, TEMPLATE_TYPE_IDX, |
| TEMPLATE_TYPE_SET_INFO, TEMPLATE_CONST_TPARMLIST, |
| TEMPLATE_CONST_IDX, TEMPLATE_CONST_SET_INFO): New macros for |
| accessing fields of TEMPLATE_..._PARM nodes. |
| (struct pending_inline): New fields for names and values to bind |
| to them while processing. |
| (struct template_info): Definition moved here from cplus-pt.c. |
| (instantiate_template): Added declaration. |
| (instantiate_class_template): Ditto. |
| (processing_template_{decl,defn}): New variable declarations. |
| |
| * print-tree.c (print_node): Provide missing argument to |
| print_node for `bitpos' field. Display `virtual' flag, and (for |
| function and method types) `class' field; these are only used by |
| C++ that I'm aware of, but are defined in common code, so they |
| should be displayed here. |
| |
| * cplus-parse.y (template_def): Separate set of derivations, for |
| class and function templates. Template_def is a type of extdef; |
| extern_lang_string before template_def is not permitted. |
| (fn_tmpl_end): New nonterminal, anything that signals the end of |
| the portion of a template that we should parse. |
| (yyprint): Define only if YYDEBUG. Handle TYPESPEC. |
| (datadef): Complain at class template override declaration if that |
| specialization has already been produced by expansion. Template |
| definitions no longer belong here. |
| (tmpl.2): Always call instantiate_class_template; let it decide |
| whether or not to go through with it. |
| (template_instantiation): Put decl in global scope only if not |
| already there. |
| (typespec, scoped_typename): Scoped typename inside template type |
| should be a scoped_typename, not a typespec. However, a |
| template_type should be allowed as a typespec. |
| (structsp): Don't undo template name overload here. Deleted |
| derivation from template_type. |
| (named_class_head_sans_basetype): Don't overload template name. |
| (LC): Do it here. |
| (notype_declarator): For scoped_id derivations, don't call |
| build_push_scope if the scoped_id is a SCOPE_REF. |
| (scoped_id): Moved old typespec-from-template_type rule here. |
| Call resolve_scope_to_name only if template parms aren't involved. |
| |
| * cplus-pt.c (struct template_info): Definition deleted. |
| (templates, current_template_info): Variables deleted. |
| (processing_template_{decl,defn}): New variables. |
| (push_template_decls, pop_template_decls): Accept parmlist and |
| arglist as separate arguments, instead of deriving both from the |
| template. If class_level is non-zero, push and pop a level, |
| making it transparent to tags. Removed some pointless checks from |
| pop_template_decls that are only needed in push_template_decls, |
| and some assertions from both. Callers changed. |
| (uses_template_parms): Return non-zero iff argument refers to any |
| TEMPLATE_*_PARM nodes. |
| (tsubst): Walk tree, substituting for template parms, returning |
| new tree. |
| (type_unification): Rewritten a bit, to make it work. New |
| argument nsubsts is pointer to place to record number of |
| substitutions made when matching. |
| (unify): Renamed from unify1. Rewritten completely, to work. |
| Still may need extending for some tree node types. |
| (do_pending_expansions): At end-of-file, expand any templates not |
| yet expanded which were actually needed. Needs work to accomodate |
| latest specs. |
| (process_template_parm): Simplified slightly. Non-type parms |
| should be marked read-only; aggregate types are not allowed, since |
| equality checks don't work. |
| (end_template_parm_list): Moved to after process_template_parm. |
| Push a level, and push decls for TEMPLATE_*_PARMs. Set |
| processing_template_decl flag. |
| (end_template_decl): For non-class templates, build a |
| TEMPLATE_DECL and store the regular decl in its result field. |
| Context and other values get copied over too. Call poplevel to |
| get rid of the TEMPLATE_*_PARM decls, and call |
| dont_forget_overload to avoid losing the declaration later. Clear |
| processing_template_decl flag. Call get_pending_sizes, so later |
| function compilation doesn't try to evaluate sizes of templates. |
| (mangle_class_name_for_template): Convert type/non-type check from |
| switch to if test. Added support for ENUMERAL_TYPE, REAL_TYPE, |
| and POINTER_TYPE parms. |
| (instantiate_class_template): Renamed from old |
| instantiate_template. Don't expand if type size is set, or if |
| being-defined flag is set, or use-template flag is non-zero. If |
| other-template parms are used in the parm list, construct a simple |
| RECORD_TYPE node and return it. Catch case of template declared |
| but not defined before use. Renamed argument from class to |
| classname. Set processing_template_defn flag. |
| (instantiate_template): New routine; constructs new decl node |
| given TEMPLATE_DECL node and template arg vector. |
| (end_template_instantiation): Set use-template field to 2 ("did |
| use template"). Clear processing_template_defn flag. |
| (reinit_parse_for_template): Get template-info ptr from decl node. |
| Store template parm vector in it. |
| (pending_template_expansions): List of templates that may need |
| expanding later for function or class data definitions. |
| |
| * cplus-method.c (build_overload_value): Ensure tree code is |
| PARM_DECL. Handle ENUMERAL_TYPE like INTEGER_TYPE. For DImode |
| values, compare against integer_zero_node instead of constructing |
| another one. Added support for POINTER_TYPEs. If not |
| REAL_IS_NOT_DOUBLE, support real values as well. |
| (build_overload_name): Accept TEMPLATE_*_PARM nodes, but generate |
| a string that should cause some assembler errors. |
| |
| * cplus-ptree.c (print_lang_decl): Retrieve template-info from its |
| new place. |
| (print_lang_type): For TEMPLATE_TYPE_PARM, print its (short) info |
| and return. For RECORD_TYPE, print use-template and interface-* |
| fields. |
| |
| * cplus-search.c (push_class_decls): Don't call |
| push_template_decls; the bindings of template parameter names |
| should be associated with the template body, not with the class. |
| Do overload the template name, however. |
| (pop_class_decls): Don't call pop_template_decls. |
| |
| * cplus-call.c (build_method_call): Changed to recognize |
| constructor of template class. |
| (build_overload_call): Add in number of template substitutions as |
| extra cost of a candidate function. For template decls, try |
| unification and instantiation before evaluating cost of result. |
| This too is incorrect in terms of the spec, but it's a starting |
| point for later work. |
| |
| * cplus-class.c (finish_struct): If structure is named, undo |
| overload of its name as a template. |
| (pushclass): If prev_class_type was a template class, pop it; the |
| decls are handled wrong and should be re-entered. |
| |
| * cplus-decl.c (poplevel): Assert that the current level is not |
| global. |
| (push_to_top_level): Include global scope when looking for old |
| values, because class bindings aren't listed in any other one |
| place. |
| (push_overloaded_decl_top_level): New function; like |
| push_overloaded_decl, but places decl in global binding level. |
| (dont_forget_overload): New function; removes decl from list of |
| overloads to be forgotten when scope is exited. |
| (start_decl): If template parms are used, construct a |
| TEMPLATE_DECL node referencing the current decl. For function |
| templates, call push_overloaded_decl; for class template members, |
| chain them into the class template definition. |
| (grokdeclarator): Don't try determining size of a |
| TEMPLATE_CONST_PARM node. For template class-data decls, |
| construct a phony VAR_DECL node and return it. |
| |
| * cplus-decl2.c (grokfield): For static class data, use |
| build_overload_name result, instead of copying class name, since |
| the latter could be a human-readable template class name. (If |
| NEW_OVERLOAD_SCHEME is not defined, do this only if the class has |
| a template-derived name.) |
| |
| * cplus-lex.c (pending_template_obstack): New variable; obstack |
| for pending-template stuff to be saved to end-of-file. |
| (init_lex): Initialize it. |
| (default_def): New variable; used for default definition of copy |
| constructors and destructors. |
| (do_pending_inlines): Figure out whether text is in an obstack, |
| and which one, for calling feed_input. Push template decls if |
| needed, as specified in pending_inline data. Pass current |
| pending_inlines pointer back in PRE_PARSED_FUNCTION_DECL instead |
| of next. |
| (process_next_inline): Ditto. Pop pending inline data if needed. |
| (store_pending_inline): New function. Decides which obstack to |
| store a pending definition on, and which list to chain it into. |
| (reinit_parse_for_method): Call it. |
| (reinit_parse_for_block): If character passed in is '=', look for |
| a semicolon to end the block; don't require a {} block. Don't pad |
| to 8 bytes on USG, since we aren't feeding input via stdio any |
| more. Also, use newlines instead of # directives for advancing |
| line number only a few lines. |
| (cons_up_default_function): Punt padding for USG stdio, since we |
| aren't using it any more. Use default_def for definition. Call |
| store_pending_inline to save it away. |
| (identifier_type): For TEMPLATE_DECL, DECL_RESULT field non-null |
| indicates a non-type template, so don't return PTYPENAME. |
| (yylex): If end-of-file and input isn't redirected, call |
| do_pending_expansions and maybe start yylex over. Don't check |
| TEMPLATE_EXPANSION_NAME_P; a proper name transformation system |
| will eliminate conflicts. Try for SCOPED_TYPENAME with PTYPENAME |
| too. |
| |
| Wed May 29 11:48:34 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * cccp.c (do_include): Check that ->control_macro is non-zero. |
| |
| * gcc.c (process_command): Use `error' in last change. |
| |
| Wed May 29 11:10:12 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * m88k.md (movdi): Accept CONST_INT. |
| * out-m88k.c (output_load_const_dimode): Accept CONST_INT. |
| (output_call): Don't use #plt for jsr. |
| |
| Wed May 29 00:51:36 1991 Michael Tiemann (tiemann at cygint.cygnus.com) |
| |
| * cplus-type2.c (build_functional_cast): Give error if functional |
| cast is missing argument. |
| |
| * cplus-tree.h (interface_unknown): Add a declaration for this |
| variable. |
| |
| * cplus-type2.c (store_init_value): Normally initialized PIC data |
| must be laid into the text segment and then copied into the data |
| segment. But cecause of special things we do for ctors and dtors |
| (the only things that can reference such things), we can leave |
| vtables in initialized data space. |
| |
| * cplus-decl.c (finish_decl): Use #pragma interface knowledge if |
| available for processing initialized variables of type const. |
| |
| Tue May 28 18:39:20 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * sched.c ({true,anti,output}_dependence): Correct MEM_IN_STRUCT_P |
| code; only avoid conflict if MEM_IN_STRUCT_P ref has varying address. |
| |
| * protoize.c (stat): Remove declaration of stat; it is defined |
| differently (no const in arg 1) on some machines. |
| |
| * combine.c (simplify_shift_const): Avoid infinite loops by quitting |
| when COUNT becomes zero; delete now-unnecessary tests on COUNT. |
| |
| * flow.c (last_mem_set): New variable. |
| (propagate_block): Initialize it. |
| Show calls can change memory. |
| (insn_dead_p): Remove unneeded arg STRICT_LOW_OK; don't treat |
| STRICT_LOW_PART differently than ZERO_EXTRACT. |
| All callers changed. |
| If insn stores into the same, nonvolatile, MEM as recorded in |
| last_mem_set, it is dead. |
| (mark_set_1): If writing into register mentioned in last_mem_set or |
| writing into memory, clear last_mem_set. |
| Record last MEM written. |
| (find_auto_inc): New function, from mark_used_regs. |
| Add support for pre-increment and pre-decrement. |
| (mark_used_regs, case MEM): Clear last_mem_set. |
| Call find_auto_inc; move code to there. |
| (mark_used_regs, case SET): Don't call recursively on MEM if it is |
| SET_DEST, instead call find_auto_inc ourselves. |
| |
| Tue May 28 17:29:52 1991 Micheal Tiemann (tiemann at wookumz.gnu.ai.mit.edu) |
| |
| * gnulib1.c (__fixsfsi, __cmpsf2, __extendsfdf2): Add declarations |
| for intify. |
| |
| * gcc.c (default_compilers): Accept `.cxx' as a C++ extension. |
| |
| Tue May 28 17:05:28 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * m88k.md (movstrsi): Pass original MEM expressions. |
| * out-m88k.c (expand_block_move, block_move_{sequence,no_loop,loop}): |
| Use original MEM expressions to set RTX_UNCHANGING_P, MEM_VOLATILE_P, |
| and MEM_IN_STRUCT_P. |
| |
| * out-m88k.c (emit_bcnd): Use bxx when optimizing so jump_optimize |
| will work on more cases. Change this back when jump_optimize uses |
| get_condition to find the values being compared. |
| |
| * m88k.md: Don't use operand0 or operand1. |
| |
| Tue May 28 16:00:56 1991 Micheal Tiemann (tiemann at wookumz.gnu.ai.mit.edu) |
| |
| * emit-rtl.c (try_split): Make sure `after' exists before checking |
| to see if it is a BARRIER. |
| |
| Tue May 28 15:08:44 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * gcc.c (process_command): Warn if -x follows last input file. |
| |
| * cccp.c: Don't include file twice if a #ifndef would make it a no-op. |
| (struct file_name_list): New field, control_macro. |
| Initialize it where these structures are created. |
| (struct if_stack): Likewise. |
| (do_include): If file already known, check its control macro if any. |
| Don't include the file if the macro is now defined. |
| (do_xifdef): Detect case of successful #ifndef at start of file. |
| (condition_skip): Accept macro name as new arg. Record in if_stack. |
| (do_endif): Detect being effectively at end of file. |
| (record_control_macro): New function. Called from do_endif. |
| |
| * calls.c (store_one_arg): Set used after calling push_rounding. |
| |
| * sparc.md (floating move peepholes): Allow `r' for operand 2. |
| |
| * arm.md, tm-arm.h, out-arm.c, xm-arm.h: New files. |
| * configure (arm): New alternative. |
| |
| Tue May 28 11:53:21 1991 Michael Meissner (meissner at osf.org) |
| |
| * tm-decstatn.h (CPP_PREDEFINES): Add Ultrix 4.2 support. |
| |
| * tm-mips.h (cmp_type, branch_cmp, branch_type): Global variables |
| and type to record what type of comparison is being done. |
| (mips_print_operand_punct): New array to specify whether a |
| character is valid for print_operand as punctuation. |
| (set_nomacro, set_noat, set_noreorder): New variables to record |
| whether a .set nomacro, .set noat, or .set noreorder has been |
| done. |
| (dslots_{filled,total}_{load,jump}): New global variables to |
| remember how many delay slots exist and are filled for the -mstats |
| option. |
| (CC1_SPEC): Combine %{O:...} %{O*:...} cases. For -G32, pass -G |
| 32. Add dummy pattern for -save-temps to avoid error message. |
| (DBX_DEBUGGING_INFO): Define this all the time. |
| (SDB_ALLOW_FORWARD_REFERENCES): Define this for MIPS ECOFF support. |
| (SDB_ALLOW_UNKNOWN_REFERENCES): Define this for MIPS ECOFF support. |
| (TARGET_SWITCHES): Add -mstats to print interesting statistics. |
| Add -mmemcpy to force memcpy to be called. Add -mdebug[fghij]. |
| Add -mno- version of switches. |
| (DATA_ALIGNMENT): Align all char/short arrays/unions/structures, |
| rather than just char arrays. |
| (BYTE_LOADS_ZERO_EXTEND): Define this. |
| (CONST_OK_FOR_LETTER_P): 'N' returns true if power of 2. |
| (EXTRA_CONSTRAINT): Redefine 'Q' to be 1 word memory references, |
| 'R' to be multiword memory references. |
| (struct frame_info): Add initialized field. |
| (current_frame_info): New global structure to hold frame info. |
| (INITIAL_FRAME_POINTER_OFFSET): Use current_frame_info. |
| (INIT_CUMULATIVE_ARGS): Pass LIBNAME to init_cumulative_args. |
| (DELAY_SLOTS_FOR_EPILOGUE): Define this to fill j $r31 delay slot. |
| (ELIGIBLE_FOR_EPILOGUE_DELAY): Ditto. |
| (ENCODE_SEGMENT_INFO): Don't flag references to 0-sized arrays as |
| being in the small data segment. |
| (CONST_COSTS): Reword to be more accurate. |
| (RTX_COSTS): Define this. |
| (ADDRESS_COST): Define this. |
| (CLASS_CMP_OP, CLASS_EQUALITY_OP, CLASS_UNS_CMP_OP): New bits for |
| rtx_classify to classify various comparison operators. |
| (FINAL_PRESCAN_INSN): Define this to collect info for -mstats. |
| (NOTICE_UPDATE_CC): Only do CC_STATUS_INIT if the insn is a |
| comparison. |
| (EXTRA_CC_MODES): Define new modes CC_EQmode, CC_FPmode, CC_0mode. |
| (EXTRA_CC_NAMES): Define this. |
| (SELECT_CC_MODE): Define this. |
| (PRINT_OPERAND_PUNCT_VALID_P): Redefine this to index into |
| mips_print_operand_punct. |
| (DBR_OUTPUT_SEQEND): Reset .set reorder, .set macro as appropriate. |
| |
| * out-mips.c (branch_cmp, branch_type): New Global variables |
| and type to record what type of comparison is being done. |
| (mips_print_operand_punct): New array to specify whether a |
| character is valid for print_operand as punctuation. |
| (set_nomacro, set_noat, set_noreorder): New variables to record |
| whether a .set nomacro, .set noat, or .set noreorder has been |
| done. |
| (dslots_{filled,total}_{load,jump}): New global variables to |
| remember how many delay slots exist and are filled for the -mstats |
| option. |
| (reg_or_0_operand): Rewrite to add support for CONST_DOUBLE. |
| (mips_const_double_ok): Allow normal FP constants (not Infinity, |
| Nan, etc) to be used as operands when using the MIPS assembler. |
| (simple_memory_operand): Combine GP memory references from |
| gp_memory_operand. Delete gp_memory_operand. |
| (equality_op): Return true if EQ or NE. |
| (cmp_op): Return true if comparison operator. |
| (uns_cmp_op): Return true if unsigned comparison. |
| (mips_move_1word): New name for mips_move_instructions. Also, loads |
| of HImode/QImode use unsigned loads, rather than signed loads, so |
| that BYTE_LOADS_ZERO_EXTEND can be defined. Use %z to get name of |
| $0, instead of hardwiring it. Explicitly use lui where appropriate. |
| (mips_move_2words): New name for mips_move_2words_instructions. Use |
| %z to get name of $0, instead of hardwiring it. |
| (mips_address_cost): New function to define ADDRESS_COST macro. |
| (gen_conditional_branch): New function to generate all of the tests |
| and branches. |
| (block_move_sequence): New function to generate straight line code |
| for block moves. |
| (block_move_call): New function to set up a call to memcpy/bcopy as |
| appropriate for block moves. |
| (expand_block_move): New function which is called from the movstrsi |
| define_expand, to set up block moves. At present, unless -mmemcpy |
| is used, moves of less than 32 bytes, get straight line code, all |
| others get a call. |
| (init_cumulative_args): Take libname as third argument. |
| (function_arg_partial_nregs): Fix bug, to not return a negative |
| number when passing small structs in registers. |
| (compare_collect, compare_restore): Remove these functions, since |
| they are no longer called. |
| (override_options): Initialize mips_rtx_classify for all of the |
| comparison operator bits. Initialize mips_print_operand_punct to |
| return TRUE for each of the valid punctuation characters used in |
| print_operand. |
| (print_operand): %X now prints 32 bit ints in hex format. %z now |
| prints $0 if the operand is the constant integer 0. %(, %) now turn |
| on/off both .set noreorder/.set nomacro. %<, %> turns on/off .set |
| nomacro. %* turns on both .set noreorder and .set nomacro if |
| filling delay slots. %! turns on .set nomacro if filling delay |
| slots. |
| (compute_frame_size, save_restore, function_prologue, |
| function_epilogue): Change the calling sequence of |
| compute_frame_size to save everything in a global structure, which |
| has an initialized field to indicate that compute_frame_size needs |
| to be called. |
| (function_prologue): INIT_CUMULATIVE_ARGS now takes 3 args. |
| (function_epilogue): If current_function_epilogue_delay_list is |
| non-null, use that to fill the final delay slot. Also, make sure |
| the various asm .set's are reset properly. Write interesting |
| statistics out to stderr if -mstats. |
| (mips_epilogue_delay_slots): New function to return # of delay slots |
| the epilogue needs. |
| (null_epilogue): Return true if the function has a null epilogue, |
| which allows the optimizer to omit jumps to the final j $31 if no |
| stack was created. |
| |
| * mips.md (type attribute): Redo how the type attributes work, and |
| change some names. |
| (mode attribute): New attribute to describe the insn's result mode. |
| (length attribute): New attribute to give insn length in words. |
| (dslot attribute): New attribute to return whether an insn needs a |
| delay slot. |
| (define_delay): Use dslot and length attributes to determine if a |
| delay slot is needed. |
| (define_function_unit): Define all of the function units now. |
| (all patterns): Provide new attribute definitions. |
| (all memory reference patterns): modify alternatives to use 'Q' for |
| 1 word instructions, 'R' for multiword instructions. |
| (unnamed patterns): Provide names for all patterns, so that -dp will |
| pinpoint exactly which pattern is used. |
| (*divsi3, *divmodsi4, *modsi3): If optimizing and not -mdebugc, use |
| the *divmodsi4 patterns, so that the opimizer will only use 1 divide |
| if doing a = b / c; d = b % c; This replaces the peepholes, which |
| previously were used for this. If not optimizing, use the normal |
| div/mod patterns. |
| (zero_extendqihi2, extendqihi2): Allow zero/sign extending from |
| memory. |
| (fixuns_trunc{df,sf}si2): Use generator patterns to generate |
| appropriate branches. |
| (movsi_ulw, movsi_usw): New patterns to generate the appropriate |
| unaligned load/store for use in the block move expansion. |
| (mov*): Provide all possible combinations of moves. |
| (movstrsi): New pattern to generate block moves. |
| (negsi2): Change to a define_expand, which uses minus. |
| (one_cmpsli2): Change to a define_expand, which use the nor pattern. |
| (cmp*, b*): Redo comparison/branch completely to save things in |
| global variables, call the common C code to expand the branch, and |
| provide match_operators to do the actual branch. |
| (s*): Provide for the ability to set a register with an integer |
| comparison, without using a branch. |
| |
| * make-decrose (AUX_OUTPUT2): Delete macro, since aux-output.c is |
| always compiled separately now. |
| (LANGUAGES): Suppress G++, Objc temporarily. |
| (cse.o): Rebuild cse if the config files change, to get new cost |
| functions, no longer rebuild calls/function since the FUNCTION_ARG |
| macros just call functions in out-mips.c. |
| (SRCS): Change $(AUX_OUTPUT2_SRC) to aux-output.c. |
| |
| * make-mips (AUX_OUTPUT2): Delete macro, since aux-output.c is |
| always compiler separately now. |
| (CONFIG2_H): Add rules to rebuild selected modules when the |
| tm-mips.h file changes. |
| (mips-tfile): Rules to build mips-tfile. |
| (mips-tdump): Rules to build mips-tdump. |
| (LANGUAGES): Suppress G++, Objc temporarily, build mips-tfile. |
| |
| * mips-tfile.c (whole file): New file to put the MIPS specific debug |
| information into the object file, after the assembler has been run. |
| This is needed because the MIPS assembler provides no method of |
| setting up the debug information for local variables. This is |
| enabled by the make-mips Makefile modifier. |
| |
| * mips-tdump.c (whole file): New file to dump the contents of the |
| MIPS ECOFF symbol table in a symbolic format. This is not currently |
| built by default, but make-mips contains rules to build it. |
| |
| * tm-decrose.h (MD_EXEC_PREFIX): Change to use the test prefix |
| /usr/ccs/gcc-2.00/gcc- instead of the release prefix /usr/ccs/gcc. |
| (WCHAR_TYPE_SIZE): Define as 16. |
| (WCHAR_UNSIGNED): Define as 1. |
| (DBX_DEBUGGING_INFO): Define moved to tm-mips.h. |
| |
| |
| Tue May 28 06:26:44 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expmed.c (store_bit_field, extract_bit_field): If -fforce-mem |
| specified, copy OP0 into register (and back again, for store). |
| |
| * sched.c (memrefs_conflict_p, {true,anti,output}_dependence): Add |
| missing parens. |
| |
| * reload.c (find_reloads): Turn usage of reg_preferred_class back on |
| now that the code has been refined. |
| |
| Mon May 27 12:41:14 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * c-typeck.c (build_binary_op_nodefault): Set converted for shifts, |
| so op1 is not converted to the result type. |
| Clean up some warning messages. |
| |
| * expr.c (expand_expr): Use temp stack slot for BLKmode SAVE_EXPR. |
| |
| * Makefile.in (alloca.o): Use new vars ALLOCA_FLAGS and ALLOCA_FINISH. |
| |
| Mon May 27 05:42:20 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * sched.c ({read,true,anti,output}_dependence): Remove unused arg INSN. |
| All callers changed. |
| |
| * combine.c (subst, case PLUS): Fix typo in (plus (plus X C) Y) case. |
| (subst, case MULT): Distribute MULT over PLUS to try to simplify it. |
| |
| Mon May 27 05:15:16 1991 Michael Tiemann (tiemann at cygint.cygnus.com) |
| |
| * tm-sparc.h (GO_IF_LEGITIMATE_ADDRESS): Don't accept a SYMBOL_REF |
| sum if FLAG_PIC is not 1. This forces the -fPIC to take effect, |
| even when the optimizer knows how to stitch together HIGH and LO_SUM |
| combinations. |
| (PRINT_OPERAND): Move body to out-sparc.c. |
| * out-sparc.c (print_operand): New function, implementing actions of |
| old PRINT_OPERAND macro. Comments written for all cases. |
| (reg_unused_after): Don't do anything special with JUMP_INSNs. Only |
| do something special with CALL_INSN if REGNO is a call-used reg. |
| |
| * cplus-type2.c (store_init_value): Back out 23 Feb change, which |
| was completely backward. |
| |
| * dbxout.c, cplus-dbxout.c (dbxout_parms): Also test that TREE_TYPE |
| (PARMS) is not ERROR_MARK_NODE. |
| |
| * cplus-init.c (build_up_reference): Check FLAGS parameter to see if |
| we can accept building a reference to a constructor-generated |
| temporary. |
| (various places): Change calls to `build_up_reference' that used to |
| use an explicit `1' to use LOOKUP_PROTECT instead. |
| (build_offset_ref): Use IDENTIFIER_TYPE_VALUE macro to the the type |
| associated with CNAME. |
| |
| * cplus-class.c (build_vbase_path): Fix 11 May change by only |
| changing TREE_TYPE (EXPR) if NULL_EXPR. We might build different |
| vbase paths for the same expr in multiple inheritance |
| initialization. |
| |
| * Makefile.in: Change sed script so it matches '^# ' instead of just |
| '^#'. This allows processing of md files with #if/#endif controls |
| in their C function bodies. |
| |
| * cplus-tree.c (build_cplus_new): Set TREE_SIDE_EFFECTS on RVAL. |
| |
| * stmt.c (warn_if_unused_value): Don't warn about EXIT_EXPRs. |
| (expand_decl_cleanup): Add missing type declarations for parameters. |
| |
| * cplus-call.c, cplus-class.c, cplus-dbxout.c, cplus-edsel.c: Include |
| stdio.h after cplus-tree.h since the latter references printf. |
| * cplus-search.c, cplus-xref.c: Likewise. |
| * cplus-class.c (prev_class_type): Not static; defined in cplus-tree.h. |
| * cplus-decl.c (builtin_function, auto_function): Don't put & in |
| front of function name. |
| * cplus-typeck.c (comptypes,comp_target_types): Likewise. |
| * cplus-search.c (report_ambiguous_mi_virtuals): Likewise, for arrays. |
| |
| Sun May 26 22:47:35 1991 Michael Tiemann (tiemann at cygint.cygnus.com) |
| |
| * cplus-decl.c (make_temporary_for_reference): New function. Split |
| out code from `grok_reference_init' so we could call it in two |
| places: where it was called before, and when initializing a |
| reference through a constructor for a temporary. |
| (grokdeclarator): Give error message instead of aborting if user |
| gave method qualifiers for function decl. |
| (start_function): Switch to temporary obstack before computing |
| destructor and constructor labels, and before building the |
| function's RESULT_DECL. |
| |
| * cplus-decl.c (store_parm_decls): Make a cleanup that controls the |
| action of the garbage collector. This ensures that the call to |
| __gc_pop doesn't get skipped in the function issues a return stmt. |
| * cplus-gc.c (expand_gc_prologue_and_epilogue): Work with new |
| cleanup model. |
| |
| * cplus-gc.c (build_i_desc): Figure out whether the i_desc should |
| constitute a defn of its type or not. |
| |
| * cplus-typeck.c (c_expand_return): Look through TARGET_EXPR as well |
| as NEW_EXPR for returning addresses of local variables. |
| |
| * reload.c (find_reloads): Intialized `goal_alternative_swapped' |
| where `swapped' is initialized to zero. |
| |
| Sun May 26 21:29:26 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * recog.c (const_double_operand): Fix typo. |
| * reload1.c (choose_reload_regs): Fix typo--swap #endif with }. |
| |
| * loop.c (init_loop): Multiply copy_cost by 2. |
| (general_induction_var): Use rtx_cost directly. |
| (expr_benefit): Function deleted. |
| |
| * m68k.md (andsi3): Generate bclr if appropriate. |
| |
| * cccp.c (do_undef): Just a warning, if deleting something unusual. |
| |
| Sun May 26 18:51:33 1991 Jim Wilson (wilson at sphagnum.cygnus.com) |
| |
| * expr.c (force_operand): When calling recursively, use |
| a temporary to force evaluation of calls. The C language |
| allows `f (g (x), g (y))' to be evaluated in different orders |
| on different hosts, which could lead to different code |
| generation for different hosts. |
| |
| * recog.c (const_double_operand): New function for recognizing |
| CONST_DOUBLE rtx's. |
| |
| * expmed.c (expand_mult_add): Add new parameter TARGET which is a |
| suggestion of where to store the result; pass it to expand_expr. |
| * loop.c (emit_iv_add_mult): Pass REG to expand_mult_add call as |
| target for the result. |
| |
| * gmicro.md, old-sparc.md, pyr.md: Delete obsolete UMULT patterns. |
| |
| * expmed.c (expand_mult): Convert DImode constants to a CONST_INT |
| if possible, so that multiplies by these can be optimized by the |
| existing code. |
| |
| Sun May 26 00:59:42 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * gcc.c (process_command): -save-temps is always valid. |
| |
| * varasm.c (output_constructor): Don't crash if val == 0. |
| |
| * cse.c (refers_to_mem_p): Handle constant addresses. |
| |
| * cccp.c (main): Don't store thru last_include if null. |
| |
| Sat May 25 06:33:19 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reload.c (find_reloads): Don't assume we have at least two operands |
| when we check for a simple copy. |
| |
| * sched.c (update_reg_known_value): Deleted. |
| (init_alias_analysis): If have REG_EQUIV note, can always use NOTE's |
| value irrespective of number of sets. |
| Take known value from note, not SET_SRC. |
| (memrefs_conflict_p): Remove gotos. |
| ASHIFT can't occur in an address. |
| (true_dependence, anti_dependence, output_dependence): Take into |
| account the fact that a MEM_IN_STRUCT_P reference cannot conflict |
| with a non-MEM_IN_STRUCT_P reference at a fixed address. |
| |
| Fri May 24 11:34:39 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * Makefile.in (cplus-tab.c): Put back -d option. |
| |
| Fri May 24 06:46:07 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * rtl.c (rtx_alloc): Ensure we keep the obstack aligned. |
| |
| Fri May 24 00:17:13 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * reload1.c (choose_reload_regs): Try with inheritance, then without. |
| #if 0 the code to avoid inheritance in certain cases. |
| |
| Fri May 24 00:13:40 1991 James Van Artsdalen (james at bigtex.cactus.org) |
| |
| * out-i386.c (split_di): Check for CONST_DOUBLE before CONSTANT_P. |
| |
| * tm-i386.h (LIMIT_RELOAD_CLASS): new macro. |
| (PREFERRED_RELOAD_CLASS): a CONST_DOUBLE can appear in narrower |
| classes than GENERAL_REGS. |
| |
| * reload.c (push_reload): Limit reload class even if the SUBREG has |
| already been stripped. |
| |
| Thu May 23 11:08:21 1991 Jim Wilson (wilson at sphagnum.cygnus.com) |
| |
| * sched.c (schedule_insns): Don't schedule a block if the only insn is |
| a CODE_LABEL. |
| |
| Thu May 23 07:54:57 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reload1.c (choose_reload_regs): Process reload in first pass if |
| a subsequent reload requires fewer registers. |
| Change criteria for processing from being a strict superset to |
| having an intersecting, non-equal class. |
| Ignore optional and turned-off reloads in loop to see what is forced |
| to be allocated in first pass. |
| |
| * toplev.c (compile_file): Fix typo in length of string to allocate |
| for sched2 dump's name. |
| |
| * jump.c (find_cross_jump): Don't crash if single_set returns 0. |
| |
| * recog.c (general_operand): A SUBREG of a constant is never valid. |
| |
| * local-alloc.c (qty_compare, qty_compare_1): Make priority function |
| the same as in global-alloc: quantities with shorter lives are |
| allocated first. This can speed up some code by a factor of three. |
| |
| Wed May 22 17:40:49 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reload1.c (emit_reload_insns): Fix some minor bugs in making |
| REG_DEAD notes and recording insn that does store; code sometimes |
| assumed that each call to gen_move_insn produced at most one insn. |
| |
| Wed May 22 16:51:53 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * reload.c (push_reload): Support LIMIT_RELOAD_CLASS. |
| |
| Wed May 22 14:14:51 1991 Micheal Tiemann (tiemann at wookumz.gnu.ai.mit.edu) |
| |
| * jump.c (jump_optimize): Update the three simplifications that |
| start with the "if (...) x = 1;" case. Add comments explaining how |
| to make them more machine independent, and comments explaining how |
| they might fail in the future. Ifdef out the second case, and add |
| code explaining why it does not work. |
| |
| * rtl.h: Put definition of FUNCTION_FLAGS_USES_CONST_POOL here. |
| * integrate.c: Remove definition of it here. |
| |
| * integrate.h: New fields in struct inline_remap, min_insnno and |
| max_insnno, which indicate the range of insns covered by insn_map. |
| * integrate.c (expand_inline_function): Set min_insnno and max_insnno. |
| |
| Wed May 22 12:31:53 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * tm-vaxv.h (ASM_OUTPUT_LOCAL): Use data_section. |
| |
| * protoize.c (fancy_abort): Define it. |
| * objc-parse.y (yyprint, set_yydebug): New functions. |
| |
| * tree.h (gettags, get_permanent_types, get_temporary_types): |
| Declare them. |
| |
| * Makefile.in (protoize.o, unprotoize.o): |
| Use the standard flags and include dirs. Don't use -Wall. |
| * protoize.c (abort): Declaration deleted. |
| |
| * cccp.c (main): Ensure `next' field in directory list is initialized. |
| |
| Wed May 22 09:27:49 1991 James Van Artsdalen (james at bigtex.cactus.org) |
| |
| * expmed.c (synth_mult): Return cost of -1 if shift is too |
| expensive. |
| |
| Wed May 22 07:53:52 1991 Michael Tiemann (tiemann at cygint.cygnus.com) |
| |
| * out-sparc.c (output_move_double): More SImode->Pmode fixes. |
| |
| Wed May 22 02:43:02 1991 Micheal Tiemann (tiemann at wookumz.gnu.ai.mit.edu) |
| |
| * Makefile.in, emit-rtl.c, explow.c, final.c, global-alloc.c, |
| gnulib2.c, hard-reg-set.h, regclass.c, reload1.c, cccp.c: Fix typos |
| and indentation. |
| |
| Wed May 22 00:14:37 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * combine.c (try_combine): Add to last change; handle subreg |
| in src as well as in dest of i3. |
| |
| Tue May 21 22:32:08 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * m68k.md (dbra): Rewrite pattern so it reflects simplifications that |
| combine will make. |
| |
| Tue May 21 10:44:05 1991 Jim Wilson (wilson at sphagnum.cygnus.com) |
| |
| * loop.c (strength_reduce): When a loop-vtop note is encountered, |
| reset `not_every_iteration'. |
| |
| Tue May 21 00:17:31 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * c-decl.c (init_decl_processing): Always use long type for size_t. |
| |
| * varasm.c (assemble_variable): Use ASM_DECLARE_OBJECT_NAME. |
| |
| * protoize.c: Include config.h. |
| (chmod, kill): Declarations deleted. |
| They aren't needed, and can conflict with system headers. |
| (wait): BSD declaration deleted. |
| (save_def_or_dec): Add missing fprintf arg. |
| |
| * tm-next.h (EXTRA_FORMAT_FUNCTIONS): Fix typo. |
| |
| * protoize.c: Use USG and VMS as most files do. |
| Don't expect BSD to be necessary defined outside this file. |
| Define getwd using getcwd, not vice-versa, to be like dbxout.c. |
| * cccp.c, SYSCALLS.c: Use USG and VMS as most files do. |
| Don't expect BSD to be necessary defined outside this file. |
| |
| Mon May 20 16:54:17 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * tm-i386.h, tm-att386.h, tm-bsd386.h, tm-sun386.h (ASM_BYTE_OP): |
| Renamed from ASM_BYTE. |
| * varasm.c (ASM_BYTE_OP): Likewise. |
| |
| * c-decl.c, cplus-class.c (finish_struct): Typo: |
| Had PCC_BIT_FIELD_MATTERS which is now PCC_BITFIELD_TYPE_MATTERS. |
| |
| * gcc.c (handle_braces): Don't deref input_suffix if null. |
| |
| Mon May 20 15:19:27 1991 Michael I Bushnell (mib at geech.gnu.ai.mit.edu) |
| |
| * cccp.c (pcfinclude): STRINGDEF struct is now longword aligned. |
| |
| Mon May 20 14:26:18 1991 Michael Tiemann (tiemann at cygint.cygnus.com) |
| |
| * sparc.md: Remove all arithmetic, logical, and shift patterns for |
| sub-SImode operands. Also fix some DImode patterns. |
| |
| * out-sparc.c (emit_move_sequence): Simplified considerably. |
| |
| * rtl.c (rtx_alloc): Inline-code an optimized obstack_alloc. |
| |
| * cplus-lex.c (make_{pointer,reference}_declaration): Call |
| `build_parse_node' instead of `build1' so memory can be freed. |
| |
| * cplus-parse.y: Remove unneeded epsilon rules to produce an average |
| 15% reduction in the number of reductions performed. |
| |
| * cplus-parse.y (RETURN_INIT): Use new interface to speed up |
| grammar. |
| * cplus-decl.c (store_return_init): Use new interface. |
| |
| Mon May 20 11:16:34 1991 Jim Wilson (wilson at sphagnum.cygnus.com) |
| |
| * sched.c (schedule_block): A register which dies in a CALL_INSN |
| does not cross calls. A single insn block must be scheduled, to |
| ensure that register lifetime info is corrected updated. |
| |
| Mon May 20 06:50:37 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * combine.c (try_combine): Don't combine when I1 and I2 both feed |
| into I3 and I1 uses the register set in I2. |
| |
| * reload.c (find_reloads): Prefer pseudos over other things we may |
| reload. |
| |
| Mon May 20 02:02:15 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * combine.c (try_combine): Test MODES_TIEABLE_P when i3 src is subreg. |
| |
| * m68k.md (trunc*): Don't set cc if use wider insn. |
| |
| Sun May 19 14:45:46 1991 Ron Guilmette (rfg at ncd.com) |
| |
| * Makefile.in (clean): Delete stage1...stage4. |
| (realclean): Delete cexp.output. |
| |
| * fixincludes: Handle BSD43__IO* and BSD43_CTRL like IO* and CTRL. |
| |
| Sun May 19 15:00:05 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * reload1.c (count_possible_groups): New function. |
| (reload): Call it twice. This checks for possible groups |
| after maybe spilling some single regs. |
| |
| * configure (magnum, m3230): Aliases for mips/mips. |
| |
| * fixincludes (machine/cpu.h): |
| Create in proper dir. Fix mips/cpu.h too. |
| |
| * reload.c (find_reloads): Turn off usage of reg_preferred_class. |
| |
| Sun May 19 09:51:24 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * flow.c (mark_used_regs): Continue putting REG_DEAD notes on |
| fixed registers. |
| |
| * regclass.c (reg_class_record): Don't count classes in which objects |
| won't fit. |
| |
| * reload.c (find_reloads): Pre-compute preferred classes for each |
| operand; if operand 1 is copied to operand 0, merge the classes. |
| REJECT is now only 1/3 as costly as LOSERS; ? adds 3 to REJECT so |
| that it's semantics don't change. |
| |
| * expr.c (compare_from_rtx): Do EQ and NE comparisons unsigned since |
| they are usually cheaper and will cse with comparisons against zero |
| which are already unsigned. |
| |
| * reload1.c (choose_reload_regs): Don't try to access reload_out |
| for disabled reload (reload_strict_low may not have been cleared). |
| |
| * reload1.c (choose_reload_regs): Don't let optional reloads inherit |
| spill regs until all non-optional reloads have been allocated spill |
| regs. |
| We can use find_equiv_reg even if must_reuse, we just can't get a |
| spill reg that way. |
| |
| * expr.c (do_tablejump): When using LABEL_REF in arithmetic, make it |
| in Pmode instead of VOIDmode. |
| |
| * function.c (fixup_var_refs_1): Don't try to make paradoxical |
| memory SUBREGs; instead keep SUBREG_REG a pseudo and copy between |
| memory and the pseudo. |
| (fixup_memory_subreg): Abort if we try making paradoxical SUBREGs. |
| |
| * reorg.c (redundant_insn_p): Insns we pass may reference resources |
| set by INSN; it is sufficient that they not set resources in INSN. |
| |
| Sun May 19 08:06:17 1991 Michael Tiemann (tiemann at cygint.cygnus.com) |
| |
| * tm-sparc.h (STRUCT_VALUE): Change SImode to Pmode here, and in |
| other places. |
| (FIRST_PARM_OFFSET): Change 4 to UNITS_PER_WORD here, and in other |
| places. |
| (ROUND_ADVANCE): New macro to compute how far to advance the arg |
| pointer for a give parameter. |
| (FUNCTION_ARG): Use PARM_BOUNDARY instead of 32. |
| (EXTRA_CONSTRAINT): Don't depend on `reload_completed'. |
| * sparc.md (various places): Change many DImode predicates from |
| `general_operand' to `register_operand'. |
| |
| * jump.c (find_cross_jump): Fixed 18 May change to use |
| `validate_change' to make sure we get valid, initialized values |
| regardless of which path we choose. |
| |
| Sat May 18 15:07:29 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * cccp.c: Rename FATAL_EXIT_CODE to FAILURE_EXIT_CODE. |
| |
| * gnulib1.c: Rename SFVALUE to FLOAT_VALUE_TYPE. |
| (union flt_or_value): New type. |
| (*): Use that instead of flt_or_int in most places. |
| Delete some variables `intify' that aren't needed. |
| * tm-i386.h: Rename SFVALUE to FLOAT_VALUE_TYPE. |
| |
| * stor-layout.c (layout_record): BITFIELD_NBYTES_LIMITED now 1 or 0. |
| |
| * rtl.h (struct rtx_def): Drop SHORT_ENUM_BUG; keep ONLY_INT_FIELDS. |
| |
| * loop.c (add_cost, copy_cost): |
| Variables replace old macros *_BENEFIT and COPY_PENALTY. |
| (init_loop): New function to set the variables. |
| (expr_benefit): Use rtx_cost. |
| * toplev.c (compile_file): Call init_loop. |
| * cse.c (rtx_cost): Treat mult by 2**n as a shift by default. |
| |
| * toplev.c (output_file_directive): |
| Typo in ASM_OUTPUT_MAIN_SOURCE_FILENAME. |
| |
| * gnulib2.c [L_trampoline]: Rename function to __trampoline. |
| Always compile it even if empty. Make it global. |
| |
| Sat May 18 14:11:37 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reload.c (find_reloads): Remove unnecessary test when increasing |
| cost of alternative due to non-preferred register class. |
| |
| * reload1.c (choose_reload_regs): Fix typo. |
| |
| * tm-rs6000.h: Add hard registers for the 8 CR fields; add classes |
| CR0_REGS and CR_REGS. |
| Don't use CC0; add CCUNSmode and CCFPmode. |
| (FIXED_REGISTERS): r31 (fp) is no longer fixed. |
| (REG_CLASS_FROM_LETTER): Remove 'd' for GENERAL_REGS; 'r' already |
| means this. |
| (CONST_DOUBLE_OK_FOR_LETTER): If we can move a constant in two insns |
| for DF or one insn for SF, let it match 'G'. |
| (SECONDARY_RELOAD_CLASS): Define this new macro. |
| (FUNCTION_ARG): Fix typo in testing nargs_prototype. |
| (LEGITIMATE_CONSTANT_P): Always return 1. |
| (FIXUNS_TRUNC_LIKE_FIX_TRUNC): Do not define. |
| * rs6000.md: Don't use CC0; instead use a pseudo which will be assigned |
| to CR_REGS or CR0_REGS. Make variants of arithmetic insns that |
| set only the condition code and that set both the condition code |
| and a normal result. |
| Delete "cc" attribute and add "type" attribute. |
| Define delays for cc-setting insns and for loads. |
| Replace `d' constraint with `r'. |
| Delete patterns for HImode and QImode arithmetic operations. |
| Handle putting "easy" DFmode or SFmode constant into a register. |
| Rework compare and branches; add scc insns. |
| Fix up decrement-and-branch insns, but they still won't be used yet. |
| (call insns): Use pseudo for "lr" in indirect calls. |
| (movdf, movsf): Explictly handle need to use memory to copy between |
| general and FP registers. |
| * out-rs6000.c (next_insn_tests_no_unsigned, unsigned_comparisons_p): |
| Deleted. |
| (update_cc): Likewise. |
| (gen_reg_operand): Tighen up a bit. |
| (cc_reg_operand, reg_or_u_short_operand, easy_fp_constant): New fns. |
| (fp_reg_or_mem_operand, mem_or_easy_const_operand): Likewise. |
| (call_operand): Accept pseudo register. |
| (branch_comparison_operator, scc_comparison_operator): New functions. |
| (secondary_reload_class, ccr_bit, must_save_cr): Likewise. |
| (print_operand, case 'w', 'u'): Support CONST_DOUBLE. |
| (print_operand, cases 'W', 'f', 'F', 'R', 't', 'T', 'C', 'D'): |
| New cases. |
| (print_operand, cases 'j' and 'J'): Now use for bit number in CCR. |
| (output_{pro,epi}logue): If we call function to save/restore fpr's, |
| we need to save/restore LR. |
| Save CR if we modify the call-saved fields. |
| |
| * romp.md: Delete HImode and QImode arithmetic operations. |
| (swapxi): Delete; obsolete and never used. |
| |
| * tm-a29k.h (TARGET_SWITCHES): Change -mnodw to -mndw. |
| Add -m{no-,}reuse-arg-regs. |
| (SECONDARY_RELOAD_CLASS): Provide a definition for this new macro. |
| * a29k.md: Delete all HImode and QImode arithmetic operations. |
| * out-a29k.c (secondary_reload_class): New function. |
| (incoming_reg): Look at TARGET_NO_REUSE_ARGS. |
| |
| * reload1.c (eliminate_regs): Don't remove a PLUS unless inside an |
| address since it would need to change INSN_CODE and can't do it here. |
| |
| * reorg.c (uid_to_ruid, max_uid): New vars. |
| (mostly_true_jump): Refine prediction slightly. |
| Use uid_to_ruid map to accurately see if branches are backward. |
| (relax_delay_slots): Pass condition to mostly_true_jump. |
| (dbr_schedule): Allocate and build uid_to_ruid map. |
| |
| Sat May 18 12:54:45 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * cse.c (insert): "Unchanging" pseudos count as constant. |
| |
| * tree.c (make_node): Rewrite end as a switch. |
| |
| Sat May 18 03:51:06 1991 Michael Tiemann (tiemann at cygint.cygnus.com) |
| |
| * cse.c (FIXED_BASE_PLUS_P): Since this is used when called from |
| `expand_inline_function', also catch the case where the base |
| register is VIRTUAL_STACK_VARS_RTX. |
| (simplify_binary_operation): In EQ and NE case, convert a COMPARE |
| operand to something we can optimize. |
| (refers_to_mem_p): Handle the case when `base' is a LO_SUM. |
| * integrate.c (FIXED_BASE_PLUS_P): Define this to recognize offsets |
| from the various virtual registers. |
| (expand_inline_function): Expand exprs using EXPAND_SUM so as to get |
| stack frame addresses instead of pseudos. This yields much better |
| cse (at little cost) for GNU C++. Also, test FIXED_BASE_PLUS_P as |
| an alternative to CONSTANT_P to record a known register value. |
| * jump.c (find_cross_jump): If we are processing a cross jump and |
| the insns fail to match, try looking for a REG_EQUAL note that makes |
| them equivalent insns. If found, keep going. This is important for |
| merging cleanup codes when one cleanup path gets frame address in a |
| register when the other path gets the frame address explicitly. |
| |
| * cplus-init.c (build_delete): Fixed residual use of 1-based |
| indexing to use 0-based indexing instead. |
| |
| * cplus-decl2.c (grokclassfn): Fix raeburn's May 12 change so that |
| destructors still have the same name. |
| |
| * cplus-decl.c (decls_match): Remove dependence on MERGED. |
| |
| * cplus-class.c (build_vbase_path): Fixed bug in computing offsets |
| for exprs which are FIXED_TYPE_P. |
| (build_vfn_ref): Change initializer for REF from 0 to NULL_TREE. |
| |
| * cplus-decl.c (maybe_build_cleanup): Add LOOKUP_NONVIRTUAL to flags |
| argument in call to `build_delete' if DECL does not use virtual |
| baseclasses. If it does, we go through a function call to save |
| space, unless FLAG_EXPENSIVEO_OPTIMIZATIONS is nonzero. ??Better |
| approach is to know, in expand_cleanups, to clear `flag_no_inline' |
| during the cleanup's expansion. |
| |
| * cplus-*.c (various places): Add LOOKUP_DESTRUCTOR to all places |
| where we know we are calling a destructor for a non-null object. |
| |
| * stmt.c (fixup_gotos): Run destructors on cleanups that come |
| from the block being exited, in addition to any inner blocks |
| for which LABEL is now defined. |
| (expand_return): Take care of destructors that occur in the |
| current binding level. |
| (fixup_cleanups): If we emitted no insns, don't change *BEFORE_JUMP. |
| |
| * rtlanal.c: Define `target_flags' here... |
| * toplev.c: ...not here. This enables us to link gen* programs |
| which might, through rtlanal.o, pull in references to `target_flags' |
| that are never used. |
| |
| * function.c: Add declaration for `current_function_uses_const_pool'. |
| * expr.h: Add extern declaration for that variable. |
| * function.h (struct function): Add a slot named |
| `uses_const_pool' for `current_function_uses_const_pool'. |
| * function.c ({push,pop}_function_context): save and restore the |
| value of `current_function_uses_const_pool'. |
| * rtl.h (FUNCTION_FLAGS_USES_CONST_POOL): Defined to be 0200. |
| * integrate.c (initialize_for_inline): |
| FUNCTION_FLAGS_USES_CONST_POOL now contributes to the value of |
| `function_flags'. |
| (output_inline_function): Restore `current_function_uses_const_pool' |
| from `function_flags'. |
| (save_for_inline_copying): Only call `save_constants' if |
| `current_function_uses_const_pool' is nonzero. |
| (save_for_inline_nocopy): Ditto. |
| (save_constants): Tweaked to perform its treewalk faster. Notably, |
| it no longer accepts ptrs to NULL rtl. All callers changed. |
| * varasm.c (force_const_mem): Set `current_function_uses_const_pool' |
| if we create a constant pool reference. |
| |
| * cplus-parse.y, c-parse.y: Add new function `set_yydebug'. If |
| YYDEBUG is defined, sets `yydebug' to VALUE. Otherwise, prints |
| warning that operation is invalid. |
| * toplev.c (main): Call `set_yydebug' instead of setting `yydebug' |
| directly. This allows user to turn YYDEBUG off for faster parsing. |
| |
| * cse.c (simplify_binary_operation): Eliminate abort when passed |
| DImode operands. |
| |
| Fri May 17 21:56:41 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * hard-reg-set.h (reg_class_superunion): New var. |
| * regclass.c (init_reg_sets): Compute reg_class_superunion. |
| (reg_classes_intersect_p): New function. |
| |
| * reload.c (find_reloads): Alternative is discouraged if it puts |
| a pseudo in a register class it doesn't prefer. |
| |
| * reload1.c (basic_block_needs): Now an array, per register class. |
| (reload): Compute separate basic_block_needs for each class. |
| (spill_hard_reg): If pseudo is only in one block, see if that block |
| needs a spill register of a class containing the hard reg; leave the |
| pseudo alone if not. |
| |
| * reload1.c (reload_mode, reload_nregs): New vars. |
| (reload_reg_class_lower): Use them. |
| (allocate_reload_reg): New function. |
| (choose_reload_regs): Track size and class of any groups. We |
| can inherit reloads if we are the size of the largest group or |
| if our class is disjoint from those needed for groups. |
| Try all inherits first before all spill register allocations |
| unless there is a later reload with a smaller class; call |
| allocate_reload_reg to do the actual allocation. |
| Use new vars above. |
| (emit_reload_insns): Delete output reload even if we weren't |
| storing to memory. |
| |
| * reload.h (reload_secondary_reload, reload_secondary_p): New vars. |
| * reload.c (push_reload): If secondary reload register is needed, |
| make a secondary reload. |
| * reload1.c (reload): Reload with reload_secondary_p nonzero is in use. |
| (choose_reload_regs): Likewise. |
| (emit_reload_insns): Handle secondary reloads, when needed. |
| |
| * reload1.c (reload): Add pass to remove death notes for things that |
| are no longer registers or don't die if we must preserve death notes. |
| (emit_reload_insns): Refine REG_DEAD notes to be more accurate; make |
| notes for secondary reloads. |
| |
| * reload1.c (emit_reload_insns): Abort for output reloads for jumps; |
| we have to implement this at some point. |
| |
| Fri May 17 20:08:22 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * protoize.c: Handle ultrix like BSD. |
| |
| Fri May 17 15:56:41 1991 Richard Stallman (rms at geech.gnu.ai.mit.edu) |
| |
| * Pass library function name to INIT_CUMULATIVE_ARGS. |
| * calls.c (expand_call): Pass extra arg to INIT_CUMULATIVE_ARGS. |
| * expr.c (emit_library_call): Likewise. |
| * function.c (assign_parms): Likewise. |
| * tm-*.h (INIT_CUMULATIVE_ARGS): Accept the extra arg. |
| (INIT_CUMULATIVE_INCOMING_ARGS): Likewise, just for symmetry. |
| |
| Fri May 17 15:41:22 1991 James Van Artsdalen (james at bigtex.cactus.org) |
| |
| * tm-i386v4.h (ASM_OUTPUT_COMMON): Don't attempt alignment on a |
| three byte boundary. |
| |
| Fri May 17 15:25:16 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * function.c (assign_stack_local, assign_outer_stack_local): Make |
| the alignment in bytes. |
| |
| Fri May 17 14:31:00 1991 Michael Tiemann (tiemann at cygint.cygnus.com) |
| |
| * cplus-class.c (build_vbase_path): Only build a COND_EXPR if |
| NONNULL is zero. |
| (resolves_to_fixed_type_p): Check TREE_HAS_CONSTRUCTOR for |
| CALL_EXPRs and INDIRECT_REFs. |
| |
| * cplus-call.c (build_method_call): Add call to `constructor_name' |
| if BASETYPE changes. |
| * cplus-init.c (build_new): Add LOOKUP_NONVIRTUAL to FLAGS argument |
| to `build_method_call'. Constructors are never virtual. Also, set |
| TREE_HAS_CONSTRUCTOR bit for return value from `build_method_call'. |
| |
| Thu May 16 21:36:10 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * rtl.h (CONSTANT_P): Now true for a CONST_DOUBLE. |
| * combine.c, cse.c, emit-rtl.c, expr.c, integrate.c, loop.c: |
| Update for new meaning of CONSTANT_P to include CONST_DOUBLE. |
| * optabs.c, recog.c, reload.c, reload1.c, rtl.h, rtlanal.c: |
| Likewise. |
| * romp.md, rs6000.md, out-alliant.c, out-convex.c: Likewise. |
| * out-gmicro.c, out-i386.c, out-i860.c, out-m68k.c: Likewise. |
| * out-sparc.c, out-spur.c, out-tahoe.c: Likewise. |
| |
| * combine.c (SUBST, SUBST_INT): If INTO equals NEWVAL, don't |
| record the substitution. |
| (try_combine, subst, make_compound_operation, simplify_and_const_int): |
| No longer need check for changes before using SUBST macro. |
| (simplify_shift_count): Likewise. |
| |
| * integrate.c (copy_rtx_and_substitute, case CONST): If what |
| was originally a constant becomes something that is not a constant |
| when passed through a recursive call, return it without the CONST. |
| |
| * rtl.c (copy_most_rtx): New function. |
| * rtl.h (copy_most_rtx): Declare it. |
| * function.c (fixup_var_refs_1, case MEM): If a MEM contains VAR, |
| ensure the MEM isn't shared by copying it. |
| |
| * expmed.c (expand_divmod): If doing MOD, produce divide result |
| into unique pseudo so that we might CSE the division. |
| |
| Thu May 16 12:01:42 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * reload.c (push_reload): Try find_dummy_reload before dead regs. |
| |
| * function.c (assign_stack_local*): Use GET_MODE_ALIGNMENT. |
| Use CEIL_ROUND consistently. |
| Don't force word alignment even if STRICT_ALIGNMENT (experiment). |
| |
| Thu May 16 10:31:04 1991 Jim Wilson (wilson at sphagnum.cygnus.com) |
| |
| * unroll.c (unroll_loop): Don't abort if start label does not |
| immediately follow LOOP_BEG note. This can happen as a result of |
| jump threading. |
| * reorg.c (mostly_true_jump): Eliminate repeated test in second loop. |
| |
| * sched.c (priority): Abort if find a NOTE in a groups of insns that |
| must be scheduled together. |
| (free_pending_lists): New function. Moves every *_LIST rtx on the |
| pending lists to the free list. |
| (add_insn_mem_dependence): Get a *_LIST from the free list instead |
| of creating one if possible. |
| (sched_analyze_1): Don't move an insn across a call if it uses a |
| register that is not already live across calls. |
| (sched_analyze_insn): Likewise. |
| (sched_analyze_1): When flusing the pending lists, put the *_LIST |
| rtx on the free list. |
| (sched_analyze): Likewise. |
| (schedule_block): Likewise. |
| (sched_analyze_2): For a cc0 setter/user pair, put a copy of all |
| dependencies on the first insn onto the second insn. |
| (sched_analyze_insn): Likewise for call sequences. |
| (sched_analyze_insn): Handle REG_INC notes just like SETs. |
| (sched_note_set): Handle hard registers same as psuedo regs. |
| (attach_deaths): Likewise. Don't add REG_DEAD notes to the frame |
| pointer, arg pointer or stack pointer. |
| (schedule_block): Likewise. |
| (rank_for_schedule): Do not check whether each insn of a sequence |
| that must be scheduled together is ready. They will only reach here |
| if they are all already ready. |
| (schedule_block): After reload, don't need to give special treatment |
| to insns at function start which set up the function parameters. |
| Don't treat tail specially if it is part of a group that must be |
| scheduled together. |
| When a group of instructions is scheduled together, run the lifetime |
| analysis code on every instruction in the group from last to first. |
| A call_insn kills all call_used and global regs except those |
| explicitly used by the call_insn. |
| (schedule_insn): Initialize new variables. If USE_C_ALLOCA, free |
| alloced memory immediately after each schedule_block call, not once |
| at the end. |
| |
| * rtl.c (add_dependence): When adding a dependence that points to an |
| insn that is part of a sequence that must be scheduled together, |
| make the dependence point to the last insn of the sequence instead. |
| |
| Wed May 15 13:08:32 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * combine.c (simplify_and_const_int): If we have |
| (and (OP (lshiftrt X Y) Z) C), for OP of IOR, XOR, and NOT, commute |
| OP and LSHIFTRT to put AND and LSHIFTRT adjacent to try to form |
| ZERO_EXTRACT. |
| |
| * combine.c (subst, gen_lowpart_for_combine, get_last_value_validate): |
| Use object's mode instead of VOIDmode when we make |
| (clobber (const_int 0)) in case someone uses the mode for significant |
| bits. |
| * rtlanal.c (side_effects_p): Reject non-VOIDmode CLOBBERs. |
| |
| * rtlanal.c (reg_set_p_1): Remove test for `reg_set_reg' being MEM. |
| (reg_set_p): Abort if passed a MEM. |
| |
| * toplev.c (strip_off_ending): Strip trailing ".f". |
| |
| Wed May 15 12:54:18 1991 Michael Tiemann (tiemann at cygint.cygnus.com) |
| |
| * cplus-typeck.c (build_modify_expr_1): If the TREE_TYPE of the |
| recursive result is an ARRAY_TYPE, change it to void_type_node so |
| build_compound_expr doesn't lose when calling default_conversion. |
| |
| * cplus-tree.h (lang_type): Remove AS_LIST field from lang_type. |
| Use TYPE_MAX_VALUE field of type instead. |
| (TREE_REFERENCE_EXPR): New macro. |
| |
| * cplus-parse.y (LC): If we are not in temporary allocation, call |
| permanent_allocation. This frees up any PARM_DECL nodes that were |
| allocated since we processed an inline function. NOTE: we still |
| have to clean up these parms from inline functions that did not go |
| inline. |
| |
| * cplus-decl.c (store_parm_decls): Since we no longer push an extra |
| binding level if ! PARMS_HAVE_CLEANUPS, test CLEANUP_LABEL to figure |
| out how far up the binding countours we must look. |
| (init_decl_processing): If FLAG_NO_INLINE is nonzero, set |
| FLAG_DEFAULT_INLINE to zero. |
| |
| * cplus-class.c (finish_struct_bits): Copy TYPE_MIN_VALUE and |
| TYPE_MAX_VALUE. These actually hold C++-related data that's moved |
| up from the lang_type data structure. |
| |
| * cplus-*.c: Change REFERENCE_EXPR to CONVERT_EXPR. Set |
| TREE_REFERENCE_EXPR bit to indicate a CONVERT_EXPR that's really the |
| address of a C++ reference expression. |
| |
| Wed May 15 12:30:26 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * tm-sparc.h (FIXED_REGISTERS): Register 0 is not fixed; it is used |
| for the condition code, not to represent the fixed %g0. |
| |
| Tue May 14 18:59:06 1991 Jim Wilson (wilson at sphagnum.cygnus.com) |
| |
| * explow.c (find_next_ref): Start search at first insn after INSN. |
| |
| * jump.c (jump_optimize): Update the three simplications that start |
| with the "if (...) x = 1; else {...} if (x) ..." case, so that when |
| HAVE_cc0 is not defined, they do not accept TST insns (which could |
| just be a register to register move). They should only accept insns |
| with the COMPARE operator. |
| |
| Tue May 14 14:51:33 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * cse.c (simplify_binary_operation): Don't abort when comparing |
| two CONST_DOUBLE values. |
| |
| Tue May 14 11:35:47 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * c-common.c (decl_attributes): Fix typo in name of attribute. |
| It should be `aligned'. Also don't crash on unknown attribute. |
| |
| * expmed.c (init_expmed): Make a separate object to free back to. |
| |
| * hard-reg-set.h (HOST_BITS_PER_LONG_LONG): Provide default definition. |
| |
| * toplev.c (main): Implement -gdwarf. |
| |
| Tue May 14 06:32:48 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * flow.c (mark_used_regs): Don't make REG_DEAD notes for fixed regs. |
| |
| * combine.c (subst): Convert (not (ashift C X)) to (or (rotate ..)) |
| and similarly for (not (lshiftrt C X)). |
| (make_field_assignment): Make corresponding change in how we recognize |
| bitfield assignment of single bit to zero. |
| |
| * combine.c (merge_outer_ops): New function. |
| (simplify_shift_const): Use merge_outer_ops to generalize and |
| simplify handling of outer_ops. |
| Try using distributive law followed by invert distributive law |
| to simplify combinations of logical operations and shifts. |
| |
| * emit-rtl.c (gen_highpart): Correct conditional that says when we |
| can get the bits of a DFmode object; copy from gen_lowpart. |
| |
| * cse.c (simplify_binary_operation, case MULT): Simplify zero case. |
| (simplify_binary_operation, case DIV): In 0/x, return zero in proper |
| mode. |
| |
| * combine.c (simplify_comparison): Can only extend comparison |
| to wider mode if equality comparison or test of sign bit. |
| |
| Tue May 14 03:26:36 1991 Michael Tiemann (tiemann at cygint.cygnus.com) |
| |
| * cplus-tree.h (lang_type): Change to use TREE_VEC to hold basetype |
| info. |
| (CLASSTYPE_N_BASECLASSES, CLASSTYPE_BASECLASS): Changed accordingly. |
| Baseclasses are now counted [0..n) instead of [1..n]. |
| (CLASSTYPE_BASETYPECLASSES): Deleted. |
| * cplus-*.c (various places): Change code to work with new |
| representation for basetypes. |
| |
| * toplev.c (main): Handle `-gdwarf' as a debug option. |
| |
| * cse.c (insert): Treat pseudos marked RTX_UNCHANGING_P as being |
| const. |
| |
| Mon May 13 22:44:18 1991 Jim Wilson (wilson at ok.cygnus.com) |
| |
| * mips.md: In the div/mod peepholes, don't apply the peephole if the |
| first operation overwrites one of its two operands. |
| |
| Mon May 13 12:14:51 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * expmed.c (store_bit_field, extract_bit_field): |
| Set volatile_p while checking predicates. |
| * recog.h (volatile_p): Declare it. |
| * explow.c (force_not_mem): Do nothing with BLKmode. |
| |
| * SYSCALLS.c (u_int): Don't define on DGUX--already defined. |
| |
| * m68k.md (zero_extend*): Don't make the subreg in the template. |
| Make it explicitly, and handle subregs as operand 0. |
| |
| * tm-convex.h (MODES_TIEABLE_P): Fix typos. |
| |
| * loop.c (check_dbra_loop): To check for a loop with a `break', use |
| loop_number_exit_label, not the uid_luid of each label, since loop |
| unrolling may have created new labels with no uid_luid. |
| |
| * expr.c (push_block): Fixed typo in last change. |
| |
| Mon May 13 12:07:25 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * combine.c (subst): If we can't change comparison code, see if |
| we can instead surround our operation with an XOR. |
| |
| * combine.c (make_compound_operation, simplify_and_const_int): |
| Ensure shift counts are non-negative and in range before using them |
| to perform shifts. |
| (simplify_comparison): Likewise. |
| |
| * combine.c (try_combine): See if we have previously merged a |
| compare and arithmetic operation. If so try to take it apart to |
| allow further combines (such as making a branch-and-decrement). |
| |
| * combine.c (try_combine): Don't make VOIDmode register if our split |
| point is a constant. |
| |
| * combine.c (subst): Use COMBINE_RTX_EQUAL_P to see if SET_DEST |
| is our register; two hard regs might have different rtx. |
| |
| * combine.c (subst): Generalize associative law handling to |
| cases not involving constants. |
| |
| * combine.c (expand_compound_operation): If we would return a |
| (clobber (const_int 0)), return what we were given. |
| |
| * combine.c (simplify_shift_const): Clean up by removing fallthrough. |
| |
| Mon May 13 10:26:00 1991 James Van Artsdalen (james at bigtex.cactus.org) |
| |
| * i386.md (all calls to output_move_double): call return |
| value to avoid spurious compiler warnings. |
| Allow REG in all alternatives of operand 0 where possible. |
| Remove patterns to recognize increment/decrement. |
| (addsi3, addhi3, addqi3): Do this in here instead. |
| (floatdidf2): New pattern. |
| (adddi3, subdi3, negdi2): New patterns. |
| (umulsi3, umulhi3): Remove obsolete UMULT patterns. |
| (divM3, udivM3, divmodM4, udivmodM4): Use "r" constraint instead |
| of "x" or "abc". |
| (sqrtsf2, sqrtdf2): New patterns. |
| (ashldi3, ashrdi3, lshldi3, lshrdi3): New patterns |
| (All shift and rotate patterns): Don't use reg name explicitly in |
| output string: use %N operand reference. |
| (ashlM3, lshlM3): Use `add' instead of `shl'/`sal' if possible. |
| (insv): Fix output constraint. Clarify source. Disable for now - |
| makes worse code. |
| (SImode bit test, all Scond patterns): Allow MEM operands too. |
| (seq, sne): Handle CC_Z_IN_NOT_C. |
| (jump, indirect_jump, tablejump): Align code on word boundary |
| after unconditional jumps. |
| (`loop' patterns): Delete - will never be useful on i386. |
| (call_pop, call_value_pop): New patterns. |
| (return): New pattern: Do `return' if simple epilogue. But only if |
| the real function epilogue isn't next. |
| (movstrsi): Do word moves, not just bytes, if count is unknown. |
| (ffsM2): New patterns. |
| |
| * out-i386.c (FP_TOP, AT_SP, RET, RETCOM, POP_ONE_FP, |
| FP_CALL1, FP_CALL): Move to tm-i386.h for use by i386.md. |
| (output_movf, fp_call_internal, output_fix_trunc, split_di): |
| No longer static - called from i386.md. |
| (via_memory): Finish return value change. |
| (output_move_const_double): Delete unused function. |
| (simple_386_epilogue): New predicate. |
| (function_prologue): Allocate frame regardless of whether or not |
| there is a frame pointer. |
| Use output_asm_insn instead of fprintf to push registers. |
| (function_epilogue): Likewise. |
| If there is a frame pointer, don't necessarily fix %esp just to |
| pop a reg - use offset from frame pointer. |
| Fix -fomit-frame-pointer support. |
| Fix RETURN_POPS_ARGS case where args > 32K bytes. |
| (print_operand): A LABEL_REF gets an OFFSET_PREFIX too. |
| (print_operand_address): %esp can only be base reg, never index. |
| (split_di): New function. |
| |
| * tm-i386.h: Remove references to obsolete tm-compaq.h file. |
| (TARGET_486): New flag. |
| (TARGET_SWITCHES): New options -m486, -mno486, -m386. |
| (SMALL_REGISTER_CLASSES): New macro. |
| (ASM_OUTPUT_LOOP_ALIGN): New macro. |
| (all reg macros, ARG_POINTER_REGNUM): Create argument pointer, |
| to be eliminated in favor of %esp or %ebp. |
| (HARD_REGNO_NREGS, REGNO_REG_CLASS): Use FP_REGNO_P. |
| (REGISTER_MOVE_COSTS): It is expensive to move between integer and |
| float registers. |
| (FP_REGNO_P): Detect only the FP regs. |
| (all class macros): Delete obsolete classes ABC_REGS & ABCI_REGS. |
| (REG_CLASS_FROM_LETTER): Add `S' for SIREG, remove `x' for ABCI_REGS. |
| (CONST_OK_FOR_LETTER_P): Add `J' for DImode shifts. |
| (FIRST_PARM_OFFSET): Offset now zero. |
| (ELIMINABLE_REGS, CAN_ELIMINATE, INITIAL_ELIMINATION_OFFSET): |
| Use generalized scheme to eliminate frame and arg pointers. |
| (INITIAL_FRAME_POINTER_OFFSET): Delete. |
| (REG_OK_FOR_BASE_P): allow virtual arg pointer. |
| (FP_TOP, AT_SP, RET, RETCOM, POP_ONE_FP, FP_CALL1, FP_CALL): |
| Moved here from out-i386.c for use by i386.md. |
| |
| * tm-compaq.h: Delete obsolete file. |
| |
| Sun May 12 18:38:41 1991 Ken Raeburn (raeburn at watch.com) |
| |
| * cplus-decl.c (print_binding_level, print_binding_stack, |
| print_other_binding_stack): New debugging routines; dump one or |
| more binding levels to stderr. |
| |
| * cplus-decl.c (push_to_top_level): New routine; saves copies of |
| all class and local bindings, and some other state, and clears the |
| real values, to effectively move to global scope. |
| (pop_from_top_level): Restore the saved state. |
| |
| * cplus-decl.c (adjust_type_value): No longer static. Abort if |
| current_binding_level is class binding level; need to investigate |
| that situation further. |
| |
| * cplus-decl.c (finish_function): Check that the binding level being |
| popped really is a function-parameter binding level. |
| |
| * cplus-tree.h (DESTRUCTOR_DECL_PREFIX): Replaces |
| DESTRUCTOR_DECL_FORMAT; used as a prefix before the class name. |
| * cplus-decl2.c (grokclassfn): Use it, and call build_overload_name |
| rather than just copying the class name. |
| |
| * cplus-method.c (fndecl_as_string): Use TREE_TYPE rather than |
| indirecting through type name and the identifier's associated type, |
| since the latter may have changed. |
| (build_nested_name): New argument, text_end; callers changed. Call |
| build_overload_identifier rather than copying class name. |
| (build_overload_value): Strip non-lvalue nodes for all arguments. |
| Fixed up the handling of negative DImode values. |
| (build_overload_identifier): New function. Copy class name (with |
| length) if non-template, or build a name from template parameters. |
| (build_overload_name): Call build_overload_identifier for class |
| names. |
| |
| * cplus-parse.y: Added comment about use of $$ for $1. |
| (template_type_name): Removed useless precedence specificiation. |
| (template_arg_list): Wrap TREE_LIST nodes around all arguments in |
| the list. |
| (template_arg): Call groktypename on type names. For expressions, |
| specify "UNARY" precedence. |
| (PRE_PARSED_CLASS_DECL handling): Put a copy of the new class decl |
| into global scope, to avoid recursive expansion, since we start in a |
| non-global scope set up for the parameters. |
| |
| * cplus-pt.c (coerce_template_parms): New function. Converts |
| template arguments to appropriate types, returns a vector containing |
| results. |
| (mangle_class_name_for_template): Removed nparms argument. |
| Changed to deal with arglist as vector. No longer call |
| groktypename. Some initial code added for PARM_DECL (non-type) |
| parameters; work not completed. |
| (lookup_template_class): Call coerce_template_parms. Removed some |
| unused code. |
| (push_template_decls, pop_template_decls): Fixed to deal with |
| arglist as vector. More code for non-type parameters. |
| (instantiate_template): Push to top binding level before pushing any |
| declarations. |
| (end_template_instantiation): Pop from top level, then push the new |
| decl at top level. |
| |
| * cplus-tree.h (struct lang_identifier): Renamed field "template" to |
| "class_template_info"; accessor macros changed. |
| |
| * cplus-pt.c (struct template_info): Renamed from "template". |
| Removed unused fields. |
| |
| Sun May 12 17:38:46 1991 Jim Wilson (wilson at cygnus.com) |
| |
| * unroll.c (copy_loop_body): Fix typo: had `==' for `='. |
| |
| Sun May 12 17:05:07 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * genattrtab.c (gen_attr): Clear has_asm_insn field in new object. |
| |
| Sun May 12 04:21:52 1991 Michael Tiemann (tiemann at cygint.cygnus.com) |
| |
| * hard-reg-set.h (HARD_CONST): New macro. Converts integer |
| constants to appropriate type for use with HARD_REG_SET. |
| ({SET,CLEAR,TEST}_HARD_REG_BIT): Use this macro where appropriate. |
| (GO_IF_HARD_REG_SUBSET): Ditto. |
| (HARD_REG_SET): Add new case if FIRST_PSEUDO_REGISTER <= |
| HOST_BITS_PER_LONGLONG. |
| * global-alloc.c: Pass HARD_CONST (0) instead of 0 to functions |
| which are looking for a HARD_REG_SET argument. |
| * reorg.c (resource_conflicts_p): Change comparison of HARD_REG_SET |
| value to compare against HARD_CONST. |
| |
| * all xm-*.h files: Added HOST_BITS_PER_LONGLONG where |
| HOST_BITS_PER_LONG was defined. |
| * tm-sparc.h (REG_CLASS_CONTENTS): Fixed in case we're using long |
| long HARD_REG_SETs. |
| |
| * toplev.c (main): support -gdwarf switch. |
| |
| * longlong.h (umulsidi3): SPARC .umul routine returns the value in |
| WORD_LITTLE_ENDIAN form, so swap. Other word-endian changes for |
| inline mul routines. |
| |
| * gnulib2.c (__divdi3): If C is nonzero, negate whole division |
| instead of returning negation of quotient. |
| |
| Sat May 11 20:06:08 1991 Torbjorn Granlund (tege at krishna.sics.se) |
| |
| * expmed.c (outside of functions): New vars: lea_cost, lea_max_mul. |
| (init_expmed): Initialize lea_cost and lea_max_mul. |
| (synth_mult): Use them. |
| |
| Sat May 11 20:11:41 1991 Michael Tiemann (tiemann at cygint.cygnus.com) |
| |
| * cplus-class.c (build_vbase_path): Rewritten and simplified. |
| * cplus-cvt.c (build_up_reference): Try to get away without building |
| a NOP_EXPR around the return value of `build_component_addr'. |
| Ditto for return value from `convert_pointer_to'. |
| |
| * cplus-decl.c (void_zero_node): New node. Used in conditional |
| expressions where one arm must do nothing. |
| * various places: replace calls that built this node dynamically to |
| just use the global copy. |
| * cplus-tree.h (void_zero_node): Declare it globally. |
| |
| (maybe_build_cleanup): Don't call `convert_force' on the return |
| value of `build_unary_op'. We should have license to modify its |
| type without harm. |
| * cplus-gc.c (protect_value_from_gc): Same idea for VAR_DECL and |
| PARM_DECL nodes. |
| |
| * toplev.c (f_options): Add choice for -fPIC. |
| |
| * varasm.c (assemble_function): If it's a function name that's the |
| first global name, strip of a leading '*' if there is one. |
| |
| * reload.c (find_reloads): Fix comment. |
| |
| * stmt.c (expand_return): Call `any_pending_cleanups' with argument. |
| |
| * expr.c (expand_expr): In TARGET_EXPR case, If TARGET is null and |
| DECL already has rtl, use that as the target. |
| (expand_expr): In BIND_EXPR try using expand_{start,end}_bindings to |
| catch cleanups...otherwise fixup_cleanups must be modified to deal |
| with cleanups not in any contours. |
| |
| Sat May 11 15:09:42 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * out-i386.c (via_memory): Return a memref to the stack. |
| (fp_call_internal): Change call to via_memory. |
| |
| * expr.c (push_block): New arg BELOW specifies padding direction. |
| All callers changed. |
| (emit_push_insn): Pass an interesting value for BELOW. |
| |
| * c-parse.y (typespec): Pass the TYPE_DECL for a typedef name. |
| * c-decl.c (grokdeclarator): Handle TYPE_DECL in declspecs. |
| |
| Thu May 9 15:17:44 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * m88k.md (zero_extend pattern): Compute correct constant. |
| |
| Thu May 9 07:44:20 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * combine.c (subst): Remove WAS_REPLACED; always check the rtl |
| for specific cases of interest and don't use TO and FROM when |
| looking into the rtl. |
| |
| * combine.c (subst, case MEM): Call make_compound_operation here |
| so any ASHIFTs will be MULTs for mode_dependant_address_p calls later. |
| (subst, case PLUS): Remove cases already done elsewhere. |
| |
| * expmed.c (emit_store_flag): Don't let the delete_insns_since call |
| we do kill insns to do an auto-inc. |
| |
| * flow.c (propagate_block): Don't treat global regs as clobbered |
| over a CALL_INSN even if call-clobbered. |
| |
| * stmt.c (expand_end_stmt_expr): Correctly handle the case where an |
| expression statement is just an auto-inc of a var. |
| |
| * sparc.md (fix_trunc[sd]fsi2): Finish change to use MATCH_SCRATCH |
| by eliminating DEFINE_EXPAND and making DEFINE_INSN a named pattern. |
| |
| Wed May 8 13:31:23 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * cccp.c (rescan): Handle symbols before // as before /*. |
| |
| * Makefile.in (objc-parse.o): Specify the command. |
| |
| * c-parse.y (typespec): Fix previous change. |
| |
| * reload1.c (choose_reload_regs): Use spillregs in round robin. |
| |
| Wed May 8 11:00:29 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-lex.c (tree_node_kinds): Renamed to `tree_node_counts'. |
| |
| Wed May 8 05:50:29 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * integrate.c (copy_rtx_and_substitute): Don't round frame size. |
| |
| * loop.c: Must include insn-flags.h to get |
| HAVE_decrement_and_branch_until_zero. |
| * Makefile.in (loop.o): Likewise. |
| |
| * expmed.c (expand_divmod): Use LOG instead of INTVAL (OP1) |
| once we start generating rtl. |
| |
| Wed May 8 05:38:06 1991 Michael Tiemann (tiemann at cygint.cygnus.com) |
| |
| * cplus-decl.c (duplicate_decls): Don't crash on duplicate |
| TEMPLATE_DECLs. |
| (globalize_nested_type): Handle globalizing types when |
| CLASS_BINDING_LEVEL goes out of effect. |
| (init_decl_processing): Comment out decls for ABS, FABS and LABS. |
| They conflict with libg++ inlines. |
| |
| * cplus-decl2.c (build_push_scope): Fix bug in last change. |
| (finish_file): Make the dummy decl that we tack on to the global |
| scope a TYPE_DECL instead of a VAR_DECL. Fake global VAR_DECLs are |
| problematic on some machines (i.e. MIPS). |
| |
| * cplus-init.c (init_vfields): Use TREE_TYPE (VFIELDS) to find the |
| type for which the VFIELD was last distinguished. This picks up |
| cases where single inheritance overrides base class vtables and the |
| base class does not get a new vtable for the override. |
| |
| * cplus-parse.y (named_class_head_sans_basetype): Handle a |
| `template_type_name' by itself. This happens with e.g. |
| friend class Stack<T>. |
| |
| * cplus-pt.c (mangle_class_name_for_template): Put ',' between |
| parameters. |
| (push_template_decls): Don't crash if ARGLIST is ERROR_MARK_NODE. |
| |
| * cplus-class.c (finish_base_struct): Compute MAX_HAS_VIRTUAL by |
| looking at all the base classes relevant to VFIELDS. |
| (build_vbase_path): Initialize NONNULL to zero. |
| |
| Tue May 7 23:47:42 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * stmt.c (any_pending_cleanups): Don't fail if block_stack is empty. |
| |
| Tue May 7 22:46:16 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cse.c (simplify_binary_operation; case EQ, NE): Don't assume |
| the address of a symbol is non-zero. |
| |
| * sched.c (schedule_insns): Ensure we free memory used by |
| schedule_block when using the C alloca. |
| |
| Tue May 7 14:13:57 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * reload1.c (mark_reload_reg_in_use): New arg MODE. Mark all the regs. |
| (choose_reload_regs): Pass that arg; don't loop here. |
| |
| * c-parse.y (typespec): Convert a TYPENAME to its meaning. |
| |
| * fold-const.c (fold): Don't assume symbolic constant is nonzero. |
| |
| * c-typeck.c (c_expand_asm_operands): Convert arrays, fcns to pointers. |
| |
| Mon May 6 23:29:21 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cse.c (cse_insn): Only make a REG_WAS_0 note if the previous |
| set was to the same register, not just the same quantity; |
| if previous REG_WAS_0 note, update back pointer. |
| If setting a register to a constant, update QTY_CONST and |
| QTY_CONST_INSN so it points to the last set. |
| In special case for (set REG0 REG1), ensure any REG_WAS_0 notes are |
| updated correctly. |
| |
| * genrecog.c (make_insn_sequence): Don't clobber `i' when it is |
| still needed. |
| |
| * out-vax.c (print_operand_address): Fix bug in last change in handling |
| (plus (reg) (reg)). |
| |
| Mon May 6 16:41:50 1991 Torbjorn Granlund (tege at zevs.sics.se) |
| |
| * expmed.c (synth_mult): Make it handle t == 0. Improve comments. |
| Use (max_cost <= add_cost) instead of (max_cost < add_cost) to |
| determine if we should fail early (to better prune the search). |
| Remove loop with n from factor synthesis. Remove -2 bias from m |
| loop (for clearity). Add code to use load-effective-address |
| instructions. Use bit-fiddling instead of loop to determine q in |
| the last synthesis case. |
| |
| Mon May 6 11:21:45 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * c-typeck.c (convert_for_assignment): Reword an error message. |
| |
| * c-typeck.c (build_conditional_expr): Typo in last change. |
| |
| * Makefile.in (enquire, enquire.o): Depend on gnulib. |
| |
| Sun May 5 17:28:22 1991 (Eric Youngdale at youngdale@v6550c.nrl.navy.mil) |
| |
| * make-cc1.com: Update for GCC 2.0; build insn-attr.h, insn-attrtab.c. |
| Compile and add obj to linker list: c-aux-info.c, c-common.c, c-lang.c, |
| aux-output.c, calls.c, dwarfout.c, function.c, reorg.c, sched.c, |
| sdbout.c, unroll.c, insn-attrtab.c. Remove references to symout.c. |
| |
| Sun May 5 15:32:01 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * Makefile.in (rest.encap): Make gnulib before float.h. |
| |
| * c-typeck.c (build_conditional_expr): |
| Don't assume symbolic constant is nonzero. |
| |
| * reload1.c (choose_reload_regs): Ignore avoid_return_reg. |
| (reload_as_needed, reload): Don't bother setting avoid_return_reg. |
| |
| Sun May 5 14:30:14 1991 Michael Tiemann (tiemann at cygint.cygnus.com) |
| |
| * cplus-class.c (prev_class_type): Declare this to be static. |
| (build_vbase_path): Test NONNULL to decide whether a COND_EXPR is |
| actually needed. |
| (finish_struct): Another sort of hard virtual function to deal with |
| is one which comes from the non-leftmost baseclass, and who's index |
| is different between that class and the main derived class. Use new |
| variable DOING_HARD_VIRTUALS to control when we punt and when we |
| plow through. |
| (modify_vtable_entry): If we find at this point that we have a hard |
| virtual function, just put it on the list PENDING_HARD_VIRTUALS if |
| DOING_HARD_VIRTUALS is nonzero. |
| (fixed_type_p): Handle SAVE_EXPR, RTL_EXPR, PLUS_EXPR, MINUS_EXPR, |
| NOP_EXPR and CONVERT_EXPR. |
| (pushclass): Fixed comment. Also change test for whether this is |
| the top-level class scope from an obscure one to an obvious one, and |
| add comment. |
| (pushclass,popclass): Now always allocate a binding level. Later |
| we'll have to rewrite this to actually use it. |
| |
| * cplus-gc.c (type_needs_gc_entry): Don't need a GC entry for |
| ERROR_MARK_NODE. |
| |
| * cplus-init.c (build_new): Set TREE_CALLS_NEW on RTL_EXPR. This |
| gives us a case that `fixed_type_p' can grok. |
| |
| * cplus-lex.c (identifier_type): Make this __inline if compiling |
| with GNU C. |
| (tree_node_kinds): Renamed to `tree_node_counts'. |
| |
| * cplus-parse.y (various places): Take advantage of default rule |
| `$$ = $1', and where possible, use $$ instead of $1. |
| Also, back out change for setting `looking_for_typename' to 1 at top |
| level. |
| |
| * cplus-decl2.c (build_push_scope): If the user gives X::foo in X's |
| scope, don't return a SCOPE_REF. Just return `foo' instead. |
| |
| * cplus-decl.c (init_decl_processing): Don't define `alloca' as a |
| built-in function until libg++ header files agree with its built-in |
| type. |
| (finish_decl): Don't crash if TYPE is error_mark_node. |
| |
| * fold-const.c (split_tree): When splitting the tree, don't call |
| convert if the TYPE_MODEs are the smae. This screws up C++ where |
| conversion of one pointer type to another can cause the pointer's |
| value to change. |
| |
| * tree.c (get_identifier): Speed up `get_identifier' by about a |
| factor of 2. This becomes noticable with the long names used for |
| C++ overloading. |
| (tree_cons): Make this most frequent user of `make_node' perform its |
| actions inline. |
| |
| * calls.c (expand_call): Eliminate many (most) calls to strcmp by |
| being smarter about when to call it. Also, don't call `push_block' |
| in the trivial case when it's not needed. |
| |
| Sun May 5 08:51:14 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expr.c (convert_to_mode): Fix (for the second time) test for when |
| gen_lowpart should be called. |
| |
| * cse.c (find_best_addr): Try to fold address. |
| (fold_rtx): Do associativity and (not (not ...)) checks here. |
| (cse_insn): Not here. |
| |
| * combine.c (recog_for_combine): New parameter, PNOTES. |
| When we add a CLOBBER, put a REG_UNUSED note for it in *PNOTES. |
| (try_combine): Call recog_for_combine with new parameter. |
| Delete any now-invalid REG_UNUSED notes in OTHER_INSN and add any |
| required new ones. |
| Add REG_NOTES to I3 and I2 due to added CLOBBERs. |
| (remove_death): Call new function, remove_note. |
| (move_deaths): Don't get confused by a CLOBBER. |
| (distribute_notes): Don't make duplicate REG_UNUSED notes. |
| Don't put a REG_DEAD note on an insn when the register is |
| partially modified, but remains valid. |
| |
| * rtlanal.c (remove_note): New function. |
| |
| * combine.c (try_combine): When making a PARALLEL that does a compare |
| and arithmetic, don't simplify the COMPARE. |
| |
| * combine.c (try_combine): Validate that I1DEST isn't being |
| modified invalidly. |
| |
| * combine.c (simplify_comparison): In ZERO_EXTRACT case, add missing |
| test for equality comparison against zero; also invert comparison |
| condition. |
| If we can't do a comparison in a narrower mode, but we know that |
| some wider bits are zero, see if we can do it in a wider more. |
| |
| * cse.c (simplify_binary_operation): Remove obsolete code to convert |
| negative shift counts to the opposite shift. |
| Don't fold invalid shifts since they may trap (e.g., on Vax). |
| |
| * reload1.c (emit_reload_insns): Use rtx_equal_p to see if a result |
| is already in the desired register. |
| |
| * combine.c (find_split_point): Add two more ways to split an insn. |
| |
| * combine.c (gen_binary): Put a complex operand first in addition to |
| putting constants second, just like subst would do. |
| |
| * combine.c (significant_bits): Correct computation of significant bits |
| for division operations. |
| |
| * combine.c (apply_distributive_law): Reject complex SUBREGs. |
| SUBREG distributes over logical and addition operations. |
| |
| * combine.c (subst; case AND, IOR, XOR): Add some boolean |
| arithmetic simplifications. |
| |
| * expr.c (do_jump): ADDRESS_EXPR is not always zero, unfortunately. |
| |
| * expr.c (do_store_flag): In case where we are testing a single bit, |
| don't convert to output mode until after we do the shift. |
| |
| * optabs.c (expand_binop, expand_unop, expand_fix): Compare |
| enum insn_code objects against CODE_FOR_nothing instead of 0. |
| |
| * romp.md (bit_insv): Use CC0 in standard way; i.e., in NE. |
| |
| Sat May 4 20:41:12 1991 (Eric Youngdale at youngdale@v6550c.nrl.navy.mil) |
| |
| * c-aux-info.c (gen_aux_info_record): Use getcwd on VMS a la USG. |
| * dbxout.c: Same here. |
| * xm-vms.h: Define unlink as remove |
| (GCC_INCLUDE_DIR): Provide a dummy definition. |
| |
| Sat May 4 16:46:48 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * combine.c (can_combine_p, try_combine): Use SMALL_REGISTER_CLASSES |
| to indicate when it is valid to do combines involving hard registers. |
| * cse.c (canon_hash): #ifdef SMALL_REGISTER_CLASSES, don't record |
| hard registers unless they are fp, ap, sp or are fixed. |
| * loop.c (valid_initial_value_p): #ifdef SMALL_REGISTER_CLASSES, |
| hard register aren't valid initial values. |
| * reload1.c (reload): Initialize FORBIDDEN_REGS depending on |
| whether we have small register classes or not. |
| |
| * ns32k.md: Replace const_int with const_int_operand. |
| Remove HImode extractions. |
| Remove patterns assigning an AND to CC0. |
| (andcbxx3): Remove name and eliminate case with NOT as second operand. |
| (sbitx, cbitx): Remove patterns involving IOR and ASHIFT; add patterns |
| with ZERO_EXTRACT as destination. |
| (ibitx): Put ASHIFT as first operand in XOR. |
| (bitfield compare): Remove comparison of 1 bit field with 1; combine |
| converts this to comparison with zero. |
| (and-compare-branch): Fold PLUS or MINUS into constant, like combine |
| will do. |
| Remove patterns for reversed cases. |
| * out-ns32k.c (const_int): Deleted. |
| |
| * rtlanal.c (reg_used_between_p, reg_set_between_p): Use GET_RTX_CLASS. |
| (reg_set_p_1): If we are setting a MEM, don't think we are setting |
| registers used in its address. |
| |
| * m68k.md (cmpsf, cmpdf, tstsf, tstdf for FPA): Use MATCH_SCRATCH. |
| * sparc.md (memory store patterns): Likewise. |
| |
| * function.c (assign_parms): Function is varargs function if the |
| last parameter is `__builtin_va_alist_' instead of checking the first |
| parameter. Normally, this is the same, but some functions in MACH |
| have named parameters before va_alist. |
| |
| * combine.c (simplify_comparison): Remove abort on paradoxical SUBREGs |
| now that we know they can occur. |
| |
| * reload.c (decompose): Handle SCRATCH; it can't conflict with |
| anything. |
| (find_reloads): All operands can set earlyclobber, not just REG & MEM. |
| Add support for "X" constraint. |
| SCRATCH does not match "g" constraint. |
| |
| Sat May 4 14:03:16 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * enquire.c (EPROP): Avoid a <= out if bad is set. |
| |
| * SYSCALLS.c: Test bsd4_2 along with BSD. |
| |
| Fri May 3 14:26:51 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * c-decl.c (pushdecl): Stop looping on type if find error mark. |
| |
| * loop.c (invariant_p): An address with a PLUS is not the same as |
| MEM_IN_STRUCT_P being set. |
| |
| * tree.h (TREE_NO_UNUSED_WARNING): New macro. |
| * stmt.c (warn_if_unused_value): That flag suppresses warnings. |
| * c-typeck.c (build_unary_op): Set flag when converting postinc. |
| |
| Fri May 3 08:09:47 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * tm-m88k.h (GO_IF_LEGITIMATE_ADDRESS): Remove workarounds for |
| register elimination problems. |
| |
| Fri May 3 07:14:22 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * a29k.md: Fix typo in dmac pattern. |
| Make many define_splits that convert DFmode and DImode to one word |
| at a time to operate only after reload completes to improve reg alloc. |
| (movdf): Correct typo in mfacc. |
| (rotlsi3): Count is QImode, not SImode. |
| |
| * tm-a29kunix.h (BIGGEST_ALIGNMENT): Change to 64. |
| |
| * tm-romp.h (OPTIMIZATION_OPTIONS): Enable insn scheduling. |
| (register definitions): No longer need dummy register and class; |
| register numbers for FP register change. |
| * romp.md: Use MATCH_SCRATCH instead of allocating pseudos |
| to the dummy register class or base register depending on alternative. |
| (FP insns): Add missing "=" to constraints in CLOBBERs. |
| (extendqisi2, extendqihi2): Now DEFINE_EXPAND. |
| (mc03 peephole): Can do if right shift >= 24 bits. |
| * out-romp.c (reg_15_operand): Remove special case for FP delay slot. |
| (romp_sa_size, output_fpop, output_loadsave_fpops, output_fpops): |
| Change floating-point register numbers. |
| |
| * combine.c (simplify_shift_const, case for shifts): Verify that |
| the host word size is wide enough. |
| Properly handle (ashift (subreg (ashiftrt ...) ...) ...). |
| |
| * out-vax.c (print_operand_address, case PLUS): Handle all addresses |
| accepted by GO_IF_LEGITIMATE_ADDRESS. |
| |
| * explow.c (plus_constant): force_const_mem does not necessarily |
| return a valid address. |
| * integrate.c (copy_rtx_and_substitute): Likewise. |
| |
| * Makefile.in (local-alloc.o): Includes output.h. |
| * rtl.def (SCRATCH, MATCH_SCRATCH): New RTL codes. |
| * regs.h (max_scratch): Add definition. |
| * genconfig.c (walk_insn_part): Handle MATCH_SCRATCH. |
| * genextract.c (walk_rtx): Likewise. |
| * genemit.c (max_operand_1): Likewise. |
| (gen_exp): Emit a SCRATCH for for MATCH_SCRATCH. |
| (gen_insn): We can create (clobber (scratch)). |
| * genoutput.c (scan_operands): Handle MATCH_SCRATCH; |
| use switch instead of if's. |
| * genrecog.c (make_insn_sequence): We can created (clobber (scratch)). |
| (add_to_sequence): Handle MATCH_SCRATCH. |
| * flow.c (life_analysis): Initialize max_scratch. |
| (propagate_block): Update max_scratch with count from this block. |
| (mark_set_1): Make REG_UNUSED note for SCRATCH and count it. |
| * local-alloc.c: Include output.h. |
| (qty_scratch_rtx): New variable. |
| (alloc_qty): Rename INSN_NUMBER to BIRTH since that's what it is. |
| (alloc_qty_for_scratch): New function. |
| (local_alloc): Account for quantities needed for SCRATCH. |
| Allocate and initialize qty_scratch_rtx. |
| (block_alloc): Allocate quantities for SCRATCH operands. |
| (requires_inout_p): Add "X" constraint. |
| * recog.c (scratch_operand): New function. |
| (constrain_operands): SCRATCH matches a register constraint unless |
| strict. |
| Add "X" constraint. |
| * regclass.c (reg_class_record): Add "X" constraint. |
| * reload1.c (emit_reload_insns): Add SCRATCH to test for operand that |
| dies right away; update REG_UNUSED note for SCRATCH. |
| Never need reload insn for SCRATCH, even if no REG_UNUSED note. |
| * rtlanal.c (reg_mentioned_p, reg_overlap_mentioned_p, rtx_equal_p): |
| Support SCRATCH. |
| (volatile_refs_p, side_effects_p, may_trap_p): Likewise. |
| (inequality_comparisons_p, replace_regs): Likewise. |
| |
| * flow.c (mark_set_1): Don't do anything special with partial |
| assignments; this is already handled by mark_used_regs and we now |
| want to make LOG_LINKS for these. |
| |
| * combine.c: Includes expr.h. |
| (expand_field_assignment, make_extraction): New functions. |
| (get_pos_from_mask, make_field_assignment): Likewise. |
| (can_combine_p): Remove special case for SUBREG in SET_DEST; call |
| expand_field_assignment instead. |
| (try_combine): Remove code to handle STRICT_LOW_PART here. |
| Call expand_field_assignment on SETs in I3. |
| (find_split_point): Split up simple cases of bitfield assignments. |
| (subst, case ZERO_EXTRACT): Remove processing of ZERO_EXTRACT in a |
| SET_DEST from here. |
| (subst, case SET): Try to convert this into a field assignment by |
| calling make_field_assignment. |
| No need to call make_compound_operation for COMPAREs; |
| make_compound_operation now returns an rtx and is no longer passed |
| a pointer. |
| Remove tests for ZERO_EXTRACT in SET_DEST. |
| (make_compound_operation): Now returns rtx and is passed rtx, instead |
| of rtx *. |
| Call make_extraction. |
| (simplify_comparison): Call make_compound_operation here and remove any |
| outermost SUBREGs that aren't doing anything. |
| |
| * Makefile.in (combine.o): Includes expr.h. |
| |
| * expr.c (convert_to_mode): Correct which cases can use gen_lowpart. |
| |
| * final.c (final_scan_insn): Don't set INSN_DELETED_P after writing |
| insn. |
| |
| * genoutput.c (main): Don't include aux-output.c in insn-output.c. |
| Include stdio.h before output.h. |
| (output_epilogue): Write definitions for all the predicates |
| placed in `insn_operand_predicate'. |
| * output.h: No longer need to define operand-predicate functions. |
| * configure: (m88k/dg): Only difference between xm-m88k{,dgux}.h was |
| definition of SEPARATE_AUX_OUTPUT, so we don't need xm-m88kdgux.h. |
| * xm-m88kdgux.h: Deleted. |
| Fix typo setting `target' in Makefile. |
| * Makefile.in (AUX_OUTPUT2): Deleted. |
| (OBJS): Remove AUX_OUTPUT2 and add aux-output.o. |
| (aux-output2.o): Now aux-output.o. |
| (insn-output.o): No longer depends on aux-output.c. |
| * make-m88kdgux (AUX_OUTPUT2): No longer define. |
| * tm-m68k.h, tm-romp.h, tm-sparc.h: Define functions in out-*.c and |
| used by insn-output.c. |
| * tm-m88k.h: Remove conditionalization for SEPARATE_AUX_OUTPUT; now |
| always done. |
| No longer define predicate functions; done by genoutput.c. |
| * tm-mips.h: No longer define SEPARATE_AUX_OUTPUT. |
| * out-*.c: Add includes previously present in insn-output.c. |
| * out-sparc.c (output_fp_move_double): No longer static. |
| (output_sized_memop): No longer need to define asm_out_file here. |
| (output_function_epilogue): Correct type; function is void, not char *. |
| |
| Fri May 3 01:05:44 1991 Micheal Tiemann (tiemann at pogo.gnu.ai.mit.edu) |
| |
| * sdbout.c (sdbout_one_type): TYPE_FIELDs may contain other kinds of |
| _DECL nodes than just FIELD_DECL nodes (in GNU C++, at least). |
| Don't look through such nodes until further mods are made to handle |
| them better. |
| |
| Thu May 2 14:43:48 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * c-decl.c (finish_enum): Don't store enum type as type of value. |
| |
| * c-parse.y (YYPRINT, yyprint): New macro and new function. |
| |
| * expmed.c (expand_and): Handle both args constant. |
| |
| * expr.c (store_field): Avoid refetching from bitfield if possible. |
| |
| * math-68881.h (pow): Negate x if negative when taking log. |
| |
| * expr.c (emit_move_insn): Fixed typo in `y1 = change_address' call. |
| Reenable the code to move objects word at a time. |
| |
| Thu May 2 12:29:16 1991 Eric Youngdale (youngdale at v6550c.nrl.navy.mil) |
| |
| * cccp.c (hack_vms_include_specification): Modified conversion of |
| unix filenames to VMS filenames, if no VMS device or directory is |
| present, and a unix style directory name is present, then use the |
| first unix directory name as the VMS device spec. This is only |
| used in '#include <...>' type includes, when the include file has |
| not been found in the standard locations. |
| |
| Thu May 2 10:06:47 1991 Micheal Tiemann (tiemann at pogo.gnu.ai.mit.edu) |
| |
| * cplus-decl.c (init_decl_processing): Call init_gc_processing if |
| -fgc is requested. |
| * cplus-init.c (build_new): Argument to build_compound_expr must be |
| a TREE_LIST all the way. The last elt of the chain cannot be an |
| _EXPR. |
| |
| Thu May 2 07:33:50 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expr.c (expand_expr, case CONVERT_EXPR): Pass bitsize to store_field |
| instead of size in bytes. |
| |
| Wed May 1 13:33:58 1991 Micheal Tiemann (tiemann at pogo.gnu.ai.mit.edu) |
| |
| * version.c: Bumped version number to 1.93. |
| |
| Wed May 1 12:26:36 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * gcc.c (link_command_spec): Pass plain -m to ld. |
| |
| * c-decl.c (finish_enum): Clean up re-laying out of type. |
| |
| Wed May 1 08:04:44 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * Makefile.in: Handle new cplus-*.c files. |
| |
| * cplus-typeck.c (common_base_type): Make this function recursive. |
| (build_component_ref): Test whether or not a FIELD_DECL, not whether |
| or not a VAR_DECL||CONST_DECL||TYPE_DECL. |
| |
| * cplus-parse.y: Fixed grammar so that template type decls could be |
| used. Previously, support existed for template decls following |
| types, but not as types. |
| * cplus-pt.c ({push,pop}_template_decls): New functions. |
| (instantiate_template): Call `push_template_decls'. |
| (end_template_instantiation): Let `poplevel' restore old bindings. |
| No need to clear out extra stuff. |
| (pushclass, popclass): Call `{push,pop}_template_decls' if the class |
| we are pushing or popping has template arguments. These arguments |
| go at class level. |
| |
| * cplus-method.c (build_opfncall): Test TRY_SECOND before testing |
| possibly uninitialized XARG2. |
| |
| * cplus-lex.c (init_lex): Initialize NODE_TABLE, OPNAME_TAB and |
| ASSIGNOP_TAB to hold zero. Since these come from malloc'd memory, |
| we cannot trust them to be initialized on startup. |
| |
| * cplus-init.c (expand_aggr_init_1): When initializing through a |
| TARGET_EXPR for objects of the same type (e.g., X a = X (10);) |
| use EXP's DECL_RTL as the DECL_RTL of the TARGET_EXPR. |
| |
| * cplus-decl2.c (finish_file): Handle new flag `-fgnu-binutils'. |
| When zero, don't use GNU extensions to a.out format. ???Should be |
| merged into varasm.c. |
| |
| * cplus-class.c: Added support for `dossiers'. This support is |
| implemented by extending the virtual function table and by giving |
| all C++ objects a virtual function table to hold it's dossier. |
| * cplus-decl.c (record_builtin_type): New function to construct |
| dossier information for built-in types. |
| (output_builtin_tdesc_entries): To keep repeated information under |
| control, we only output this information for the file that contains |
| `main'. |
| (init_decl_processing): Many dossier-related changes. |
| (init_lex): Recognize new reserved words `headof' and `classof' if |
| -fgc. |
| * cplus-parse.y: Grammar now recognizes `headof' and `classof' |
| expressions. |
| * cplus-method.c: Added dossier constructors here. |
| * cplus-tree.h (CLASSTYPE_DOSSIER): New macro: `dossier' is a new |
| field in lang_type. |
| * cplus-typeck.c (convert_for_assignment): Handle |
| `class_star_type_node'. |
| |
| * cplus-class.c: New variable current_class_depth. Used to tell |
| what class nesting level the compiler is at. |
| * cplus-decl.c (grokdeclarator): Now supports references to decls |
| that come from nested types. For example, int foo::bar (foo_tag); |
| where `foo_tag' is a tag that comes from foo. Previously this was |
| supported only as int foo::bar (foo::foo_tag); |
| * cplus-decl2.c (build_push_scope): build a SCOPE_REF node while |
| pushing into the context for the scope. When `grokdeclarator' sees |
| one of these nodes (distinuished by its TREE_COMPLEXITY being set to |
| the current_class_depth), it processes the decl and pops the scope. |
| |
| * cplus-class.c (build_vbase_path): Trust objects that are |
| `fixed_type_p'. Also, don't assume an object is non-null unless |
| flag says this is explicitly so. InterViews creates and may |
| manipulate (via delete) lots of null objects. |
| (build_vfn_reference): Use IS_AGGR_TYPE test on type, not in |
| INSTANCE. |
| (resolves_to_fixed_type_p): New argument NONNULL is used in case we |
| know and object to be non-zero. All callers changed. |
| |
| * cplus-call.c: New file, from file cplus-class.c. Contains code to |
| generate method calls. |
| * cplus-class.h: New file, contains common declarations for |
| cplus-class.c and cplus-call.c. |
| |
| * cplus-class.c (finish_struct_bits): Don't leave last_conversions |
| uninitialized. |
| |
| Tue Apr 30 17:14:00 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * expr.c (expand_expr): |
| Preserve volatility when changing ARRAY_REF to use a pointer. |
| |
| * vax.md (indirect_jump): Use parens around register, not @. |
| |
| * fixincludes (machine/cpu.h): Delete superfluous `static'. |
| |
| * tm-decstatn.h (CPP_PREDEFINES): Define __mips and __LANGUAGE_C. |
| |
| * explow.c (allocate_dynamic_stack_space): Compensate if |
| STACK_POINTER_OFFSET throws off the alignment. |
| |
| * loop.c (strength_reduce): Typos setting not_every_iteration. |
| |
| Tue Apr 30 16:10:32 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * vax.md (bicb): Fix typo that caused operand not to be negated. |
| (jlbs/jlbc): Operand[0] cannot be a constant. |
| |
| * rtl.h: Put NOTE_INSN_... codes in order. |
| (find_regno_note): Add missing definition. |
| |
| * reload.c (find_reloads_address): Handle an indexed stack slot that |
| is made out of range by frame pointer elimination. |
| |
| Tue Apr 30 14:09:28 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * toplev.c (compile_file): Output gcc2_compiled, not gcc_compiled. |
| * tm-tower-as.h (ASM_IDENTIFY_GCC): Likewise. |
| |
| Tue Apr 30 13:56:40 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * varasm.c (output_addressed_constants): Return and indication of |
| whether the variable requires link-time relocations. |
| (assemble_variable, get_or_assign_label): Use this value when |
| choosing the section. Use the data section for variables and |
| constants that are otherwise read-only when -fpic is given and |
| when link-time relocations are required. |
| * tm-*.h (SELECT_SECTION): Accept a new second parameter RELOC. |
| |
| Tue Apr 30 10:24:36 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * rtl.h (NOTE_INSN_LOOP_VTOP), rtl.c (note_insn_name): Add a new |
| note indicating the virtual top of a loop. |
| * jump.c (duplicate_loop_exit_test): Mark the duplicated exit code |
| in the loop as the virtual top of the converted loop. |
| (squeeze_notes): Move loop-vtop notes as well. |
| * loop.c (scan_loop): When a loop-vtop note is encountered, reset |
| `maybe_never' and `call_passed'. |
| (strength_reduce): Similarly, reset `not_every_iteration'. |
| |
| Tue Apr 30 08:15:50 1991 Michael Meissner (meissner at osf.org) |
| |
| * expr.c (do_store_flag): Move the join label after setting the |
| target value to 0, rather than before, which generates code that |
| always stores 0 into the target if the machine does not have a |
| builtin scc operation. |
| |
| Tue Apr 30 06:26:36 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reload1.c (reload): When making reg_equiv_mem and reg_equiv_address |
| from reg_equiv_memory_loc, clear the one we aren't setting; it might |
| have been previously set. |
| |
| * final.c (final_scan_insn): Correctly handle when the first insn in a |
| SEQUENCE is a JUMP_INSN that forces restoration of a comparison |
| previously thought unnecessary. |
| |
| * fold-const.c (fold, case PLUS_EXPR): If we have 2 * real_cst, |
| fold into a new constant instead of making real_cst + real_cst. |
| |
| Mon Apr 29 23:09:17 1991 Ken Raeburn (raeburn at watch.com) |
| |
| * cplus-decl.c (output_builtin_tdesc_entries): Corrected |
| declaration of permanent_obstack. |
| (init_decl_processing): Record declaration of int with name "int" |
| rather than null. |
| (finish_decl): Fix typo in comment. |
| |
| * cplus-class.c (finish_struct): Made error message for union |
| member requiring constructor/destructor a little tidier. |
| (resolve_scope_to_name): Look at fields of current type as well as |
| tags, in case of local typedefs. |
| (build_method_call): Permit explicit call of destructor in class |
| that doesn't have one. (That's what the ARM says....) |
| |
| * cplus-decl.c (set_nested_typename): New function, extracted from |
| within pushtag. Extended to deal with null classname. |
| (pushtag): Call it. |
| (pushdecl): For a TYPE_DECL, ensure that the nested typename gets |
| set. |
| (pushdecl_class_level): Ditto. |
| (constructor_name): Test various assertions. |
| (hack_incomplete_structures): If type is a class template, punt. |
| |
| * cplus-input.c (getch): Renamed from get_character. Callers |
| changed. |
| cplus-lex.c (old getch): Deleted. |
| |
| * cplus-lex.c (save_pending_input, restore_pending_input): New |
| functions for saving and restoring lexer state. |
| (process_next_inline): Restore lexer state after each function. |
| cplus-pt.c (end_template_instantiation): Ditto. |
| cplus-input.c (struct input_source, getch, feed_input): Preserve |
| putback_char and lexer state. |
| |
| * cplus-input.c (getch): Return magic cookie on end of saved input |
| for lexer to recognize. |
| cplus-lex.c (yylex): Turn it into END_OF_SAVED_INPUT. |
| (process_next_inline): Require it after inline function body. |
| |
| * cplus-lex.c (do_pending_inlines): Don't save away current |
| file/line-no info; character input processing should do that. |
| (yyungetc): Turn conditional abort into assertion test. |
| (note_list_got_semicolon): Since variable "type" is available, use |
| it rather than recompute. |
| (identifier_type): Now static. |
| (yylex): Warn about conflicts with class template expansion names. |
| |
| * cplus-parse.y (temporary_scope): New variable. |
| (object and scoped_id actions): Set it to current type. |
| (many other actions): Clear it. |
| (scoped_typename): Now derivable also from scoped_id and TYPENAME. |
| cplus-lex.c (yylex): If temporary_scope is set, use it to |
| determine type of current token being examined, instead of looking |
| always in the global scope. (Can't properly do nested template |
| classes otherwise.) |
| |
| * cplus-ptree.c (print_lang_decl): Print out template-info, |
| original-name, decl-main-variant, and pending-inline-info nodes if |
| not null. |
| |
| * cplus-pt.c (mangle_class_name_for_template): For negative |
| numbers, use "m" prefix rather than printf's "-". |
| (overload_template_name): Test more assertions. Use |
| SET_IDENTIFIER_TYPE_VALUE macro. |
| (lookup_template_class): Assert template decl node is non-null. |
| Push to permanent obstacks for new allocations. |
| (instantiate_template): Return new class type in a list. |
| |
| * cplus-pt.c (undo_template_name_overload): Clear type local |
| definition of template name. |
| (end_template_instantiation): Call it. |
| cplus-parse.y (structsp actions): Ditto. |
| (named_class_head_sans_basetype): Don't call |
| overload_template_name here. |
| (named_class_head): Call xref_tag, to define a tag, before calling |
| it here. |
| |
| * cplus-parse.y (tmpl.1, tmpl.2): Delete type declarations, since |
| they have no values. |
| (yyprint, YYPRINT): New function and macro to work with debugging |
| code added to bison. |
| (datadef -> template_header... actions): Assign yychar, rather |
| than calling yyungetc and yylex. Require trailing semicolon. |
| (fn.def1 -> PRE_PARSED_FUNCTION_DECL action): Preserve all of |
| terminal value, instead of just TREE_PURPOSE. |
| (tmpl.1 action): Do instantiation only if '{' or ':' not found. |
| (template_instantiation): Call overload_template_name right away. |
| (primary -> .scope new '(' typename ')' '[' ...): Detect and warn |
| about this construct, which appears to be recognizeable, though |
| disallowed by the ARM. |
| (primary -> delete[]): Return error_mark_node. |
| (primary -> obj TYPESPEC::~TYPESPEC()): Catch, parse as valid. |
| Returned value not determined yet. |
| (typespec): No longer derived from PTYPENAME. |
| (LC): Added missing semicolon at end of rule. |
| (stmt): A PTYPENAME can also be used as a label name. |
| |
| Mon Apr 29 22:18:47 1991 James Van Artsdalen (james at bigtex.cactus.org) |
| |
| * tm-att386.h (ASM_OUTPUT_LOCAL): Align static local variables. |
| |
| Mon Apr 29 15:20:35 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * fold-const.c (fold): Don't assume an address is nonzero. |
| * cse.c (fold_rtx): Likewise. |
| |
| * stmt.c (warn_if_unused_value): No warning for cast of cast of modify. |
| |
| * Makefile.in (USER_H): Remove float.h. |
| |
| Mon Apr 29 13:46:48 1991 Jim Wilson (wilson at cygnus.com) |
| |
| * loop.c (scan_loop): When see a REG_EQUAL note, check for both |
| the move_insn and the REG_RETVAL case, since they can occur together. |
| (move_movables): For the move_insn case, handle library calls just |
| like the older normal case code below, that is, skip to the end of a |
| library call when when see a REG_LIBCALL note, and delete an entire |
| library call if when see a REG_RETVAL note. |
| |
| Mon Apr 29 12:58:19 1991 Jim Wilson (wilson at cygnus.com) |
| |
| * sched.c: (schedule_block): Rewrite code that computes which |
| registers are live at the end of the block. Compute this from |
| basic_block_live_at_start info of current block, instead of from |
| all reachable blocks. Previous code failed if one of the |
| reachable blocks consisted of dead code. |
| (sched_note_set): Set bb_live_regs when DEATH is false. |
| |
| * sched.c: Update copyright. Correct various problems with |
| indentation and white space. |
| (canon_rtx): Delete obsolete code handling INSN_LIST rtx. Add |
| code to recurse on the operands of a PLUS rtx. |
| (find_symbolic_term): New function. Recursively search an rtx for |
| a SYMBOL_REF or a LABEL_REF and return pointer to one if found. |
| (memrefs_conflict_p): No longer needs to call canon_rtx on |
| operands of a plus. Now handles case of two addresses with |
| different base addresses. |
| (schedule_block): Don't set INSN_DELETED_P bit of ignored notes. |
| Verify that REG_DEAD notes have a register value. |
| (sched_analyze_1): Ifdef out obsolete code which calculates cc0 |
| dependencies. |
| (sched_analyze): Likewise. |
| (schedule_block): Likewise. |
| (launch_links): Delete obsolete code for handling SPARC 'orcc' insns. |
| |
| Mon Apr 29 12:09:32 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * configure: Allow spaces between options and their args. |
| |
| Mon Apr 29 06:35:09 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * jump.c (jump_optimize): Don't emit jump to next insn; this would |
| cause jump_optimize to loop. |
| (jump_optimize, duplicate_loop_end_test, do_cross_jump): Never put |
| insn in jump_chain if its INSN_UID is too large. |
| (redirect_tablejump): Likewise. |
| |
| Sun Apr 28 08:00:01 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-decl.c (init_decl_processing): Merge changes in builtin |
| function handling to match the way that c-decl.c now works. |
| Also add global variables to support that change. |
| (define_function): Ditto. |
| |
| * cplus-decl2.c: Add flags for gc and xref. |
| * cplus-tree.h (DECL_GC_OFFEST): New macro for gc. |
| * cplus-tree.h: Rearrange CLASSTYPE_ASSOC and CLASSTYPE_BASETYPES so |
| that the former now uses TYPE_LANG_SPECIFIC storage, and the latter |
| uses TYPE_BASETYPES. |
| * cplus-tree.h: Change overload names of new and delete to `nw' and |
| `dl'. Formerly, `new' was being seen as `ne', the encoding for `not |
| equal'. |
| |
| * cplus-xref.c: New file. Adds support for generating |
| cross-reference information such as a class browser or program |
| analyzer would use. |
| |
| * cplus-gc.c: New file. Add support for garbage collection. |
| * cplus-decl.c (finish_decl): Tie decls to their places in the |
| garbage collector. |
| * cplus-init.c (build_new): Added hooks for gc. |
| * cplus-typeck.c (convert_arguments): protect arguments from the |
| garbage collector if -fgc. |
| (build_modify_expr): More gc-related changes. |
| |
| Fri Apr 26 07:31:26 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * integrate.c (expand_inline_function): Add missing increment of I. |
| |
| Thu Apr 25 11:07:11 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * m88k.md (various patterns): Use nonimmediate_operand in place of |
| reg_or_nonsymb_mem_operand and constraint `m' in place of `Q'. |
| * tm-m88k.h (EXTRA_CONSTRAINT): Only needed for a call address. |
| * out-m88k.c: reg_or_nonsymb_mem_operand and symbolic_memory_p are |
| now unused. |
| |
| * m88k.md (symbolic store patterns): These patterns are all |
| unnecessary and are deleted. |
| * out-m88k.c (emit_move_sequence): Eliminate the case that |
| generated a CLOBBER. This was intended to use the symbolic store |
| patterns, but isn't needed. |
| (symbolic_memory_operand): Delete, no longer used. |
| (output_prologue): Don't check for suspicious register elimination |
| changes. |
| * tm-m88k.h (GO_IF_LEGITIMATE_ADDRESS): Treat the frame pointer |
| like the argument pointer as both may change to REG+SMALLINT. |
| |
| Tue Apr 23 15:08:03 1991 Jim Wilson (wilson at cygnus.com) |
| |
| * out-sparc.c (output_scc_insn): Clean up and expand comments. |
| Don't assume that JUMP_LABEL fields are always valid, they aren't |
| when compiling without optimization. |
| |
| Mon Apr 22 13:56:43 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-class.c (prepare_fresh_vtable): Thoroughly update virtual |
| function tables that come from baseclasses to contain the latest |
| overrides from derived classes. This was done (in a different way) |
| for virtual baseclasses, but left undone for non-virtual |
| baseclasses. |
| (finish_struct_bits): Use assoc lists instead of class basetype list |
| to walk through the classes base classes. This gives us more |
| relavant classes to check against. |
| * cplus-init.c (init_vfields): New function to recursively walk |
| objects and make sure their vfields are initialized. |
| * cplus-init.c (emit_base_init): Call `init_vfields' from top level. |
| |
| * cplus-tree.h (TYPE_IDENTIFIER): New macro, gives the |
| IDENTIFIER_NODE for a given aggr TYPE. |
| * cplus-class.c (add_method): Use TYPE_IDENTIFIER. |
| * cplus-cvt.c (various places): Ditto. |
| |
| * cplus-class.c (finish_struct): Add TYPE_DECLs to the list of a |
| class's members that come from the types implicitly declared tags. |
| |
| * cplus-decl.c (grokdeclarator): If a function is declared `static |
| inline', don't give it global visibility, regardless of what #pragma |
| interface/implementation suggests. |
| |
| * cplus-decl.c (finish_function): ??? Questionable change for PIC: |
| don't let constructors and destructors that manipulate vtables go |
| inline, since this somehow reduces page sharing. Really??? |
| |
| * cplus-except.c (init_exception_processing): Use `pushdecl' to |
| install global info that this function sets up. That way later |
| decls can override this info (such as with an inline function). |
| |
| * cplus-init.c (build_vec_delete): Set TREE_SIDE_EFFECTS of |
| controller. Otherwise the loop won't execute. |
| |
| * cplus-method.c (prepare_inline): Rewritten and simplified. |
| (do_inline_method_hair): Ditto. |
| |
| * cplus-tree.c (lang_output_debug_info): Only output nested type if |
| we would also output enclosing type. |
| |
| * cplus-typekc.c (c_expand_return): Use pseudo for intermediate |
| return value if necessary. GCC can't read the function return |
| registers in an inline functino when the return value is being |
| ignored. |
| |
| Mon Apr 22 14:36:01 1991 Jim Wilson (wilson at cygnus.com) |
| |
| * sched.c (init_alias_analysis): Handle REG_EQUIV notes just like |
| REG_EQUAL notes. |
| |
| * sched.c (sched_analyze_2): Don't recurse on constant rtx's. |
| This is necessary so that the cc0_rtx in CONST_DOUBLEs won't be seen. |
| (sched_analyze): Call sched_analyze_insn for JUMP_INSNS also, so |
| that cc0 users will get an automatic dependence on their previous |
| insn. |
| (launch_links): Ifdef out special treatment of insns which set the |
| condition codes. This is obsolete, and was SPARC specific anyways. |
| (new_sometimes_live): Clarify code that aborts if regno is greater |
| than max_regno. |
| (schedule_block): If the last insn sets cc0, then it must always |
| be left in place. |
| (new_insn_dead_notes): New function. Determines whether a SET or |
| CLOBBER in an insn created by splitting needs a REG_DEAD or |
| REG_UNUSED note added. |
| (update_links): Ignore REG_EQUIV and REG_EQUAL notes on insns that |
| have more than one set. Generalize flow analysis of the sets in |
| the new insns so that it can handle new insns which have multiple |
| sets or new clobbers. |
| |
| Mon Apr 22 08:15:50 1991 Michael Meissner (meissner at osf.org) |
| |
| * gcc.c (input_suffix): New global var; holds current file's suffix. |
| (handle_braces): Substitute X in %{.S:X} if the current file has |
| suffix .S. Similarly, substitute X in %{!.S:X} if the current file |
| does not have suffix .S. |
| (validate_switches): Ignore .S part in %{.S:X} construct. |
| |
| Sat Apr 20 14:41:17 1991 Micheal Tiemann (tiemann at pogo.gnu.ai.mit.edu) |
| |
| * final.c (leaf_function_p): Define this in any event. |
| |
| Sat Apr 20 10:45:43 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * loop.c (check_dbra_loop): Use GET_RTX_CLASS when appropriate. |
| Check for setting biv with single_set rather than only allowing a SET. |
| If a loop has a `break', we can't reverse it. |
| |
| * cse.c (cse_insn): Fold inside operands of a CALL (mostly to find the |
| best address form to use). |
| |
| * cse.c (simplify_unary_operation): Convert (neg (neg ..)) to NEG. |
| Similarly for NOT. |
| (simplify_binary_operation): Simplify things like (-a) + b. |
| Convert UDIV with divisor a constant power of two into LSHIFTRT. |
| Similarly for UMOD. |
| Only fold shifts of a zero by a value into zero if the value has |
| no side effects. |
| Remove code to handle negative shift counts. |
| |
| * tm-a29k.h (OPTIMIZATION_OPTIONS): Allow insn scheduling to be |
| enabled, now that it works for the 29k. |
| |
| * tm-rs6000.h (LINK_SPEC): Add "-bhalt:4" to LINK_SPEC (don't ask!). |
| |
| Fri Apr 19 13:18:52 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * explow.c (memory_address): Test `cse_not_expected' instead of |
| `optimize' so that we don't make new pseudos after flow is run. |
| |
| * genflags.c (gen_insn): If extra condition is more than one line, |
| use \'s to make proper multi-line macro definition. |
| |
| Thu Apr 18 13:40:01 1991 Jim Wilson (wilson at cygnus.com) |
| |
| * loop.c (check_dbra_loop): Reenable no_use_except_for_counting code |
| which was mistakenly ifdefed out as buggy. The actual bug was in |
| strength_reduce, and has already been fixed. |
| |
| Thu Apr 18 09:47:25 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * loop.c (record_giv): Allow for the case where regno_last_uid |
| of DEST_REG has been moved or deleted. |
| |
| * rtlanal.c (replace_regs): Add missing argument in recursive call. |
| |
| * recog.c (nonmemory_operand): Only call general_operand for |
| a SUBREG if it is a MEM, just like register_operand. |
| |
| * local-alloc.c (block_alloc): Handle case where the last insn of |
| a REG_NO_CONFLICT block requires some CLOBBERs, but is a single SET. |
| |
| * out-romp.c, out-rs6000.c (next_insn_tests_no_unsigned): If a |
| REG_UNUSED note for (cc0) is present on INSN, return 1. |
| |
| * jump.c (delete_jump): If the previous insn sets cc0 but we can't |
| delete it for some reason, add a REG_UNUSED note for cc0 in that insn. |
| |
| * out-a29k.c: Rename input_operand to in_operand and output_operand |
| to out_operand to avoid conflict with output_operand in final.c. |
| * a29k.md: Likewise. |
| (call patterns): Don't put SYMBOL_REF in MEM for recursive call; |
| it might not be recursive if inlined; let cse do it later. |
| * tm-a29k.h (RTX_COST, ADDRESS_COST): All addresses have the same |
| cost, but MEM is expensive. |
| |
| Tue Apr 16 16:01:47 1991 Michael Meissner (meissner at osf.org) |
| |
| * configure: Add osfrose, osf, and mips/dec-osfrose. |
| |
| * out-mips.c (toplevel): Include necessary include files so |
| out-mips.c can be compiled separately. |
| (g_switch_value): New variable to hold -G xx value. |
| (g_switch_set): New variable to indicate if -G xx used. |
| (current_function_file): New variable to hold last .file. |
| (file_in_function_warning): New variable to hold if we've warned the |
| user that ECOFF can't switch files within a function. |
| (mips_rtx_classify): New array to classify an insn. |
| (mips_reg_names): New array to hold the register names. |
| REGISTER_NAMES initializes all elements to point into here, and |
| override_options resets the names if -mrnames is used. |
| (mips_sw_reg_names): New array to hold the alternate register names. |
| (mips_regno_to_class): New array to map hard register number to |
| register class. |
| (uns_arith_operand): Rewrite so call to register_operand is done |
| last, not first. |
| (arith_operand): ditto. |
| (arith32_operand): ditto. |
| (large_int): New function to return true if int constant will take 2 |
| instructions to load into a register. |
| (reg_or_0_operand): New function to return true if a register or |
| constant 0 is the operand for use in store patterns. |
| (md_register_operand): New function to return true if either the hi |
| or lo register is used. |
| (mips_const_double_ok): New function to return true if a |
| CONST_DOUBLE can be used as a constant in a RTL expression. At |
| present, only DImode constants and 0.0 is allowed. |
| (simple_memory_operand): New function to return true if a memory |
| reference is a simple register + small offset. |
| (gp_memory_operand): New function to return true if a memory |
| reference uses the global pointer. |
| (mips_move_instructions): New function to handle all data movement |
| of one word or less. |
| (mips_move_2words_instructions): New function to handle all data |
| movement of two words. |
| (init_cumulative_args): Remove print_tree debug call. |
| (function_arg_partial_nregs): Fix bug in passing structures where |
| the wrong field was used. |
| (print_options): Enable this function, body was in #if 0. |
| (override_options): Spell function name with two r's. Change how |
| the -G xx and -mGx options are handled. If neither passed use the |
| appropriate default. If -mgas make sure debug format is DBX, and if |
| not -mgas, use SDB debug format. If -mrnames and -mgas, give an |
| error message, otherwise set up mips_reg_names. Set up the |
| mips_rtx_classify array. |
| (print_options): New function instead of a long macro. Add %C to |
| print part of the opcode for a branch condition, %N to print the |
| inverted branch condition, %( to do .set noreorder, %) to do .set |
| reorder, %[ to do .set noat, %] to do .set at, %& to do .set |
| noreorder if filling delay slots, and %# to print nop if delay slot |
| not filled. |
| (print_operand_address): New function instead of a long macro. |
| (compute_frame_size): New function to abstract all the frame related |
| information like frame size, saved registers, etc. |
| (save_restore): Common function between the prologue and epilogue to |
| save/restore the registers in the proper order. Make $31 saved at |
| function pc +4. |
| (function_prologue): Call compute_frame_size and save_restore. Make |
| sure the appropriate .file is done before any statement in the |
| prologue since the MIPS ECOFF requires this. |
| (function_epilogue): Call compute_frame_size and save_restore. |
| |
| * tm-decstatn.h (CPP_PREDEFINES): Define the appropriate macros. |
| (*_SPEC): Move the DECstation related specs here from tm-mips.h. |
| |
| * tm-decrose.h (new file): File to support OSF/1 with OSF/rose |
| object format. |
| |
| * tm-mips-sysv.h (CPP_PREDEFINES): Define the appropriate macros. |
| (*_SPEC): Move the DECstation related specs here from tm-mips.h. |
| |
| * tm-mips-bsd.h (CPP_PREDEFINES): Define the appropriate macros. |
| (*_SPEC): Move the DECstation related specs here from tm-mips.h. |
| |
| * tm-mips-news.h (CPP_PREDEFINES): Define the appropriate macros. |
| (*_SPEC): Move the DECstation related specs here from tm-mips.h. |
| |
| * tm-iris.h (CPP_PREDEFINES): Define the appropriate macros. |
| (*_SPEC): Move the DECstation related specs here from tm-mips.h. |
| (SET_FILE_NUMBER): Define, so that .file number is always 1. |
| (LABEL_AFTER_LOC): Define, so that a label appears after .loc. |
| (STACK_ARGS_ADJUST): Iris frames require 32 bytes at the top of the |
| call frame instead of the normal MIPS 16. |
| |
| * mips.md (all): Add first cut at attributes to identify insn type. |
| (all): Where appropriate, use @ form for alternates, instead of |
| using C code. |
| (define_delay): Put arithmetic and one word stores in call, jump, |
| branch delay slots. |
| (define_function_unit): Add functional unit definitions for memory |
| and integer multiply/divide. |
| (anonymous add/subtract insn): Remove support for reg + large offset |
| that omitting the frame pointer caused in 1.xx to see if it is |
| needed anymore. |
| (mulsi3): Add clobbers for the hi/lo registers. Add a define_split |
| and an anonymous define_insn to separate the mult instruction from |
| the mflo. |
| (divmodsi4): Add clobbers for the hi/lo registers. |
| (udivmodsi4): Add clobbers for the hi/lo registers. |
| (divsi3): Add clobbers for the hi/lo registers. Restrict divides |
| and modulus to register / register. |
| (modsi3): ditto. |
| (udivsi3): ditto. |
| (ymodsi3): ditto. |
| (divide peepholes): Add two peepholes to catch divide followed by |
| modulus of the same values. |
| (anddi3): Remove pattern, use default behavior. |
| (iordi3): Remove pattern, use default behavior. |
| (xordi3): Remove pattern, use default behavior. |
| (truncsiqi2): Remove pattern, use default behavior. |
| (truncsihi2): Remove pattern, use default behavior. |
| (trunchiqi2): Remove pattern, use default behavior. |
| (truncdfsf2): Remove asm comment. |
| (extendhisi2): Add a define_split for shift case. |
| (extendqisi2): Add a define_split for shift case. |
| (extendqihi2): Add a define_split for shift case. |
| (movdi): Turn into a define_expand to guarantee that memory <-> |
| memory moves go through a register. |
| (movsi): ditto. |
| (movhi): ditto. |
| (movqi): ditto. |
| (movsf): ditto. |
| (movdf): ditto. |
| (movdi_internal): new define_insn. Add fp registers to the |
| alternatives. Call mips_move_2words_instructions to do the actual |
| movement. Require memory addresses to be offsetable. |
| (movdf_internal): ditto. |
| (movsi_internal): new define_insn. Add storing 0 to memory |
| directly using $0. Add transfer to/from multiply/divide registers, |
| and to the fp status register. Call mips_move_instructions to do |
| the actual work. |
| (movhi_internal): ditto. |
| (movqi_internal): ditto. |
| (movsf_internal): ditto. |
| (jump): Add %& to turn on .set noreorder if filling delay slot. |
| (tablejump): Ditto. |
| (call): Ditto. |
| (call_value): Ditto. |
| (indirect_jump): New required pattern, add %& for delay slot. |
| (nop): Use %( %) to turn on/off .set noreorder. |
| (probe): Use %[ %] to turn on/off .set noat. |
| |
| * tm-mips.h (abort): Define abort to be fancy_abort for now. |
| (toplevel): Move all extern's to the start of the file, rather than |
| scattered throughout. |
| (OPTIMIZATION_OPTIONS): New macro, -O sets -fomit-frame-pointer, and |
| -fdelayed-branch. -O2 sets -fstrength-reduce, -fcse-follow-jumps, |
| -fexpensive-optimizations, -fthread-jumps, -frerun-cse-after-loop. |
| -O3 sets -finline-functions. |
| (*_SPEC): Move most of the target specific spec's to the appropriate |
| file, rather than defining them in tm-mips.h. Defaults are for MIPS |
| RISC-OS with default system. |
| (CPP_SPEC): If preprocessing .S files, define LANGUAGE_ASSEMBLY |
| instead of LANGUAGE_C. |
| (MIPS_VERSION): Add meissner version number. |
| (MIPS_DEBUGGING_INFO): Define this for the future. |
| (TARGET_*): reorder which bit means what. Add bits so we can tell |
| whether any of the -mG[012] options were used. Redefine some debug |
| switches. |
| (BYTES_BIG_ENDIAN): Always define to 0/1 now. |
| (WORDS_BIG_ENDIAN): Always define to 0/1 now. |
| (MAX_PARM_BOUNDARY): Delete, since it's no longer used. |
| (BIGGEST_FIELD_ALIGNMENT): Define to be 64. |
| (CONSTANT_ALIGNMENT): New macro, make sure strings are aligned. |
| (DATA_ALIGNMENT): New macro, make sure byte arrays are aligned. |
| (FIRST_PSEUDO_REGISTER): Bump to 67, add hi, lo, fcr31. |
| (FIXED_REGISTERS): Add initializations for hi, lo, and fcr31. |
| (CALL_USED_REGISTERS): Add initializations for hi, lo, and fcr31. |
| (MD_REG_P): New macro to return if hi/lo register. |
| (ST_REG_P): New macro to return if fp control register. |
| (HARD_REGNO_NREGS): Return 4 for single precision complex. |
| (MODES_TIEABLE_P): Add complex float type support. |
| (FRAME_POINTER_REQUIRED): Make this always 0. |
| (NO_RECURSIVE_FUNCTION_CSE): New macro, define as 1. |
| (enum reg_class): Add class for the hi register, lo register, either |
| hi or lo registers, status registers. |
| (REG_CLASS_NAMES): Support new register classes. |
| (REG_CLASS_CONTENTS): ditto. |
| (REG_CLASS_FROM_LETTER): ditto. |
| (REGNO_REG_CLASS): Use an array to map register # -> class. |
| (CONST_OK_FOR_LETTER_P): Add `L' for constants which have bottom 16 |
| bits all zero, and `M' which require two instructions to load. |
| (CONST_DOUBLE_OK_FOR_LETTER_P): Use `CONST_DOUBLE_HIGH' and |
| `CONST_DOUBLE_LOW'. |
| (EXTRA_CONSTRAINT): New macro, `Q' for gp memory references, and `R' |
| for reg + small offset references. |
| (struct mips_frame_info): New structure to hold all frame related |
| information, calculated by compute_frame_size. |
| (INITIAL_FRAME_POINTER_OFFSET): New macro, use compute_frame_size to |
| calculate where the frame should go. |
| (ACCUMULATE_OUTGOING_ARGS): New macro, define so stack pushes are |
| folded into the frame. |
| (REG_PARM_STACK_SPACE): Redefine to take an argument and return 16. |
| (OUTGOING_REG_PARM_STACK_SPACE): New macro, define to say we must |
| allocate stack space for arguments passed in registers. |
| (TARGET_FLOAT_FORMAT): New macro, define as IEEE_FLOAT_FORMAT. |
| (FUNCTION_ARG_BOUNDARY): New macro to determine argument padding |
| requirements. |
| (MIPS_STACK_ALIGN): New name for AL_ADJUST_ALIGN macro. |
| (FIX_FRAME_POINTER_ADDRESS): Delete, no longer used. |
| (FUNCTION_PROFILER): No longer have to switch between different |
| register names, override_options now sets up reg_names correctly. |
| (TRAMPOLINE_TEMPLATE): New macro, define as a dummy. |
| (TRAMPOLINE_SIZE): ditto. |
| (INITIALIZE_TRAMPOLINE): ditto. |
| (INDIRECTABLE_ADDRESS): Delete, fold into GO_IF_LEGITIMATE_ADDRESS. |
| (GO_IF_LEGITIMATE_ADDRESS): If -mdebuga, don't allow <label>(<reg>) |
| type addresses, which the machine really doesn't support, but you |
| currently get better code in some instances by pretending it does |
| support it. |
| (LEGITIMATE_CONSTANT_P): Call mips_const_double_ok if CONST_DOUBLE. |
| (ENCODE_SEGMENT_INFO): New macro, set SYMBOL_REF_FLAG (ie, volatil) |
| if refering to an item via the gp pointer. |
| (SLOW_BYTE_ACCESS): Define to 1, it is supposed to generate better |
| code on RISC machines. |
| (classify_op): New macro to classify an insn. |
| (additive_op): Use classify_op to figure out if PLUS or MINUS. |
| (divmod_op): New macro to identify DIV, MOD, UDIV, UMOD insns. |
| (unsigned_op): New macro to identify UDIV, UMOD insns. |
| (REGISTER_NAMES): All names are now pointers into mips_reg_names, so |
| that we don't have to continually test whether -mrnames is used or |
| not. The override_options function sets this up appropriately. |
| (REGISTER_NUMCHAR): Deleted. |
| (REG_NAME): Deleted. |
| (ADDITIONAL_REGISTER_NAMES): Define both names for the gp registers, |
| so people can use either $r4 or a0 in asm statements. |
| (PRINT_OPERAND): Call print_operand function instead of expanding a |
| huge macro. Add %C, %N, %(, %), %[, %], %&, %#. |
| (PRINT_OPERAND_PUNCT_VALID_P): Add `(', `)', `[', `]', `&', and `#'. |
| (PRINT_OPERAND_ADDRESS): Call print_operand_address function instead |
| of expanding a huge macro. |
| (DBX_OUTPUT_SEQEND): New macro, emit .set reorder after filling |
| delay slot(s). |
| (ASM_OUTPUT_SOURCE_FILENAME): Add check for doing .file of same file |
| -- this is needed for the prologue to do a .file before all prologue |
| instructions, rather than after the instructions which set up the |
| stack. Also, warn about #line requests that cannot be honored in |
| MIPS ECOFF binaries. |
| (ASM_OUTPUT_CASE_END): Delete, since it was only used to go back to |
| the text section, and GCC does this now automatically. |
| (READONLY_DATA_SECTION): New macro, define to be rdata_section. |
| (SELECT_SECTION): Don't force volatile readonly items into .data. |
| (ASM_COMMENT_START): New macro, define to be '\t\t# ' for -dp. |
| (SEPARATE_AUX_OUTPUT): New macro, define this to separately compile |
| out-mips.c. |
| |
| Tue Apr 16 15:00:51 1991 Jim Wilson (wilson at cygnus.com) |
| |
| * unroll.c (final_giv_value): Use expand_binop instead of |
| gen_sub2_insn when emitting subtract insns, since expand_binop |
| will work for any operands. |
| |
| * sched.c (schedule_insns): Don't split no-op moves; doing so |
| breaks the code that handles REG_NO_CONFLICT blocks. |
| (update_links): Delete the code that prints a warning for |
| REG_EQUAL notes where the original dest can't be found. This no |
| longer occurs because of the above change. |
| |
| * sched.c: Generalize memory aliasing code so that it will work on |
| non-RISC machines. Instead of saving just the insn on the pending |
| lists, now saves both the insn and the mem rtx. Old variables |
| pending_read and pending_write replaced with pending_read_insns, |
| pending_read_mems, pending_write_insns, and pending_write_mems. |
| (read_dependence, true_dependence, anti_dependence, |
| output_dependence): Now passed a MEM rtx instead of a PATtern. |
| (add_insn_mem_dependence): New function. Adds an insn and a mem |
| to a pending list pair. |
| (sched_analyze_1, sched_analyze_2, sched_analyze): Modified to use |
| new pending list scheme. |
| (schedule_block): Likewise. |
| (schedule_insns): Likewise. |
| |
| Tue Apr 16 12:31:07 1991 Jeffrey A. Law (law at mole.gnu.ai.mit.edu) |
| |
| * Makefile.in (install-man): Look for protoize.1 and unprotoize.1 |
| in the current directory, not $(srcdir) |
| (install-headers): Use basename to strip off $(srcdir) from |
| include files when installing and changing mode. |
| |
| Tue Apr 16 08:10:38 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * rs6000.md (extendqixi2): Add CLOBBER to the first SET as well as |
| the second. |
| (load_multiple): Fix typo in operand number and add newline. |
| |
| * reload.c (find_reloads_address_1): Pass actual location of a |
| MEM used in an address; also handle the case when the MEM was |
| copied. Ensure we reload the copy, not the original address. |
| |
| * reload1.c (eliminate_regs, case {INSN,EXPR}_LIST): Correctly handle |
| the cases when one or more operations is (nil). |
| |
| * local-alloc.c (block_alloc): Check for REG_EQUAL on list insn |
| of REG_NO_CLOBBER sequence, not first. |
| (no_conflict_p): Set LAST and use INSN instead of P for loop start. |
| |
| Mon Apr 15 12:55:12 1991 Jim Wilson (wilson at cygnus.com) |
| |
| * loop.c (strength_reduce): Don't emit an insn after loop_end to |
| set the final value of a reversed biv. There is already an insn |
| there setting the biv's proper final value. |
| |
| Sun Apr 14 18:32:05 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * gnulib1.c (various functions): Added declaration of INTIFY to |
| every function which has a FLOAT_ARG_TYPE argument or return value. |
| |
| Sun Apr 14 18:31:59 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * c-decl.c (store_parm_decls): Traditional float parm becomes double. |
| |
| Sat Apr 13 17:35:07 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * m68k.md (storing 32-bit field with movl): Allow any immediate arg 3. |
| |
| * expmed.c (store_bit_field): For fields bigger than a word: |
| Avoid special use of SImode, and don't crash if VALUE is CONST_INT. |
| |
| Fri Apr 12 02:04:46 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * reload.c (find_reloads): Like prev change here, for optional reloads. |
| |
| * tm-sparc.h (FUNCTION_BLOCK_PROFILER): Must set %o0 to the address |
| LPBX0 by adding in the low part of the address before calling |
| ___bb_init_func. |
| |
| * tm-next.h (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): |
| New macros. Place reference to constructor or destructor into |
| constructor or destructor section. |
| |
| * tm-next.h (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS): Add |
| new constructor and destructor sections. |
| |
| * jump.c (squeeze_block_notes,squeeze_notes): Chage the name of |
| squeeze_block_notes to squeeze_notes. Also handle LOOP_BEG, LOOP_CONT |
| and LOOP_END notes, since these must remain in their original order. |
| |
| * cccp.c (skip_to_end_of_comment): Handle warn_comment. |
| |
| * m68k.md (dbra patterns): Use `=' in constraint of op 0. |
| |
| * gcc.c (process_command): Handle -save-temps. |
| (do_spec_1): Handle %g like %b if -save-temps. |
| (verbose_flag): Renamed from `vflag'. |
| |
| * tm-sparc.h (FIXUNS_TRUNC_LIKE_FIX_TRUNC): Don't define this. |
| |
| Fri Apr 12 00:57:48 1991 Jim Wilson (wilson at cygnus.com) |
| |
| * sched.c: Update all comments to reflect source changes. |
| Make old_live_regs a static global, instead of local to schedule_block. |
| Schedule_block is now void, since its return value was always 1. |
| Rename last_function_call_not_const to last_pending_memory flush. |
| This can not be a CALL_INSN or a INSN that writes memory. |
| New variable pending_lists_length so that the lists can be flushed |
| when they get too long. |
| Use GET_RTX_CLASS instead of multiple GET_CODE calls whenever it |
| makes sense. |
| (read_dependence): New Function. Returns one if two reads are |
| dependent. This can happen if both are volatile reads. |
| (true_dependence, anti_dependence, output_dependence): Two volatile |
| memory access are always dependent. |
| (order_calls): Function deleted. It was very short, it was only called |
| once, and it no longer did what its name implied. Its one call was |
| replaced with the body of the function. |
| (sched_analyze_1): Correctly handle stripping of SUBREGs, etc from |
| the set dest. |
| If the pending lists are longer than 32 when processing a memory |
| write, then make this write depend on all previous and all future |
| memory accesses so we can flush the pending list. This is necessary |
| because the algorithms used are O(N*N). |
| (sched_analyze_2): For memory reads, check whether it is read |
| dependent on any previous memory read (this can happen if both reads |
| are volatile). |
| (sched_analyze_insn): Replace call to order_calls with the body of |
| that function. |
| (sched_analyze): Don't clear last_memory_pending_flush for a non-const |
| call, since any future call must still depend on all previous memory |
| accesses. |
| (sched_note_set): Correct handling of SUBREGs, etc. For partial sets |
| of a register, must treat this exactly the same way as flow.c, i.e. |
| a partial set of a register does not kill the register. Delete |
| ifdefed out code which is obsolete. |
| (attach_deaths): New argument SET_P, which indicates whether this is |
| a set (if true) or a use (if false) of the rtx X. Correct handling |
| of REG_DEAD notes, to account for the new REG_UNUSED note. |
| (attach_deaths_insn): Pass new additional parameter to attach_deaths. |
| Always call attach_deaths for sets within a parallel. Call |
| attach_deaths for clobbers. |
| (new_sometimes_live): Ifdef out code which should never be executed, |
| and replaced with call to abort. |
| (schedule_block): Now void. |
| When processing block to find dead_regs, don't unlink REG_UNUSED notes, |
| but must mark the indicated register as dead. |
| (update_links): Completely rewritten to make more general. Now handles |
| all REG_NOTEs except REG_INC and REG_LABEL. No longer makes simple |
| assumptions about the form of instructions. New argument orig_insn, |
| which is the original unsplit insn. |
| (schedule_insns): Delete unused volatilep code. Pass new parameter |
| to update_links. |
| |
| Thu Apr 11 15:34:44 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * out-m88k.c (pic_addressing_base_rtx): Use pic_offset_table_rtx |
| instead. Otherwise, PIC fails miserably for inline functions. |
| (legitimize_address): Support -mbig-pic. |
| (print_operand): Add `g' for printing #got_rel (for -mbig-pic). |
| * tm-m88k.h (CONDITIONAL_REGISTER_USAGE): PIC_OFFSET_TABLE_REGNUM |
| is used and is fixed for PIC. |
| (GO_IF_LEGITIMATE_ADDRESS): Distinguish the -mbig-pic case. |
| * m88k.md (SImode hi16/lo16): Use %g for -mbig-pic. |
| |
| Wed Apr 10 21:53:32 1991 Jim Wilson (wilson at cygnus.com) |
| |
| * unroll.c: Change global variable declarations to static. |
| Four new global variables loop_iteration_var, loop_initial_value, |
| loop_increment, and loop_final_value, used for communication between |
| loop_iterations and precondition_loop_p. |
| (unroll_loop): Before deleteing the insns in the original loop body, |
| emit a label after the last insn to be deleted, to ensure that no |
| delete_insn call will delete past that point. |
| (precondition_loop_p): Use global loop_* variables setup by |
| loop_iterations, instead of trying to calculate their values again. |
| (copy_loop_body): Don't emit copies of the start_label. |
| (approx_final_value): COMPARISON argument now passed as the pair |
| COMPARISON_CODE and COMPARISON_VALUE. |
| (find_splittable_regs): When completely unrolling a loop, and the |
| initial value of a biv is a hard register or itself, then must |
| create a new register to hold its initial value for splitting. |
| (loop_iterations): Set the new global variables loop_*. |
| If the comparison value is an invariant register, then search the insns |
| before the loop to try to find a constant value for the register. |
| |
| Wed Apr 10 16:02:16 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * out-m88k.c (pic_addressing_base_rtx): A pseudo register coined |
| for each function as needed in legitimize_address. |
| (emit_move_sequence): Use legitimize_address instead of generating |
| HIGH/LO_SUM. |
| (legitimize_address): Rework, based on the sparc version, to |
| implement PIC. |
| (output_call): Use the #plt form when doing PIC. |
| (m88k_layout_frame): The addressing base register is no longer |
| fixed and r1 need not be saved for PIC. |
| (output_prologue): Output instructions to setup the addressing |
| base register if one is needed. |
| (print_operand_address): Support the PIC case. |
| * m88k.md (most patterns using hi16/lo16): Disable these for PIC. |
| * tm-m88k.h (CONDITIONAL_REGISTER_USAGE): No longer needed. |
| (ADDRESSING_BASE_REGNUM): Derived from pic_addressing_base_rtx. |
| (GO_IF_LEGITIMATE_ADDRESS): Accept the PIC case. |
| (LEGITIMIZE_ADDRESS): Use legitimize_address instead of HIGH/LO_SUM. |
| |
| * make-m88k, make-m88kdgux: Use SysV INSTALL = cp and for DG/UX, |
| use the bison -l option to allow debugging in c-parse.tab.c. |
| |
| * From kenner@vlsi1.ultra.nyu.edu. |
| * out-m88k.c: Include insn-config.h before conditions.h, which |
| requires it. |
| * xm-m88kdgux.h: Define SEPARATE_AUX_OUTPUT before including config.h. |
| * tm-m88k.h: Declare MD functions only if SEPARATE_AUX_OUTPUT. |
| |
| * tm-m88k.h, tm-m88kdgux.h, tm-m88ksvr4.h: Rework TARGET_VERSION. |
| |
| Wed Apr 10 08:19:02 1991 Richard Stallman (rms at apple-gunkies) |
| |
| * caller-save.c (emit_mult_restore): Typo testing offset[regno] sign. |
| |
| * fold-const.c (target_isinf): Test real value for infinitude. |
| * real.h (REAL_VALUE_ISINF): Use target_isinf. |
| |
| * configure: Change / to -- in value of `target' in Makefile. |
| |
| Tue Apr 9 20:09:49 1991 James Van Artsdalen (james at bigtex.cactus.org) |
| |
| * configure: Modify assignment to `target' in Makefile. |
| (AIX target): Use correct config files. |
| |
| * make-aix386: New file. |
| |
| Tue Apr 9 19:28:16 1991 Torbjorn Granlund (tege at zevs.sics.se) |
| |
| * longlong.h (header): |
| Modify definition of count_leading_zeros for input = 0. |
| * (68020): Test for __NeXT__ too. |
| * (68020 __umulsidi3, umul_ppmm, udiv_qrnnd): |
| Use constraints "dmi", not "g" (avoid address registers). |
| * (88000 add_ssaaa, sub_ddmmss): Use r modifier for output |
| templates, use J, not I, as constraint for the carry-in insns |
| * (at the end of the file): If UDIV_NEEDS_NORMALIZATION is not |
| defined, define it as 0. |
| |
| Tue Apr 9 19:14:34 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * function.c (optimize_bit_field): Fix typo. |
| |
| * cccp.c (do_define): Don't crash when a builtin macro is |
| redefined. |
| |
| Tue Apr 9 15:11:42 1991 Richard Stallman (rms at apple-gunkies) |
| |
| * expr.c (move_by_pieces): Don't fail to compile if no movqi. |
| |
| * emit-rtl.c (get_last_insn_anywhere): Use first nonempty seq. |
| |
| * varasm.c (assemble_constructor): Fix typo. |
| |
| Fri Apr 5 22:15:57 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * rs6000.md (extendqixi): Add CLOBBER to ASHIFTRT insn. |
| |
| * combine.c (simplify_shift_const): Shift operand of PLUS using |
| correct mode. |
| Correctly simplify outer_const when done. |
| |
| * reload.c (push_reload): Don't de-reference INLOC if it is 0. |
| |
| * expr.c (convert_to_mode): Call protect_from_queue. |
| |
| Fri Apr 5 13:29:55 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * varasm.c (ASM_OUTPUT_CONSTRUCTOR, ASM_OUTPUT_DESTRUCTOR): |
| Accept two arguments. |
| |
| Fri Apr 5 08:45:18 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expmed.c (expand_divmod): Convert OP1 to COMPUTE_MODE when we |
| convert OP0. |
| |
| * combine.c (subst): Use gen_binary. |
| (simplify_comparison): If we have a ZERO_EXTRACT from a constant |
| with only one bit set, convert into comparison of position with |
| location of bit in constant; this simplifies ((1 << x) & 1) == 0. |
| |
| * combine.c (gen_lowpart_for_combine): Copy code for CONST_DOUBLE |
| from gen_lowpart instead of calling it; it will abort for certain |
| floating-point cases, while we will just surround the object with |
| a SUBREG. |
| |
| Thu Apr 4 22:31:36 1991 Jim Wilson (wilson at cygnus.com) |
| |
| * unroll.c (new file): Implements loop unrolling. Completely |
| unrolls small constant bounded loops. Unrolls other constant |
| bounded loops by an amount modulo the number of iterations so that |
| only one exit test is needed. Preconditions loops whose iteration |
| count can be calculated at run time, so that only one exit test |
| is needed. Can also unroll any other loop by having multiple |
| copies of the exit tests. Tries to simplify addresses while |
| unrolling. |
| |
| * tree.def: BLOCK trees have 4 fields, not 5. |
| |
| * toplev.c: Add new flag -dt to dump RTL after the second cse pass. |
| Define two new flags, flag_unroll_loops and flag_unroll_all_loops, |
| and add code to support their use for loop unrolling. Print the |
| exec time for the shorten-branch pass in the proper place, i.e. |
| after delayed branch reorganization. |
| |
| * stmt.c (find_loop_tree_blocks): New function. Creates a mapping |
| between BLOCK trees and loops. This info is needed when doing both |
| loop unrolling and outputting debugger info. |
| (unroll_block_trees): New function. Makes COPIES copies of the block |
| trees corresponding the loop indicated by LOOP_NUMBER, so that the |
| BLOCK notes inside the loop will still match the BLOCK trees for |
| the loop. |
| |
| * rtl.h: Document the new named pattern |
| "decrement_and_branch_until_zero". Add macros to access new |
| field of inline_header rtx, which holds a pointer to the function's |
| original DECL_INITIAL tree. |
| |
| * rtl.def: New entry for inline_header to hold a pointer to the |
| function's original DECL_INITIAL tree. |
| |
| * loop.h (new file): Move many declarations from loop.c to the new |
| file loop.h, and change some from static to extern, so that they |
| can be shared with unroll.c. Also globalize names for variables |
| changed from static to extern. |
| |
| * loop.c: Move many declarations from loop.c to the new file loop.h, |
| and change some from static to extern, so that they can be shared |
| with unroll.c. Add misc comments to better explain the code. |
| Change name of global arrays loop_start and loop_end to |
| loop_number_loop_starts and loop_number_loop_ends so that they won't |
| be confused with local loop_start and loop_end variables. |
| New variables loop_number_exit_labels, loop_number_first_block, |
| loop_number_last_block, loop_number_block_level, loop_n_iterations. |
| Old_max_reg renamed to max_reg_before_loop. Max_uid renamed to |
| max_uid_for_loop. Induct_var renamed to reg_iv_type. |
| Induct_struct renamed to reg_iv_info. Class_struct renamed to |
| reg_biv_class. Iv_list renamed to loop_iv_list. |
| Rename (struct induction) field always to always_computable. |
| Rename (struct induction) field family to next_iv. |
| New (struct induction) field not_replaceable. |
| (loop_opt): Add code to allocate some new arrays for unrolling |
| support. Add call to find_loop_tree_blocks to create the BLOCK tree |
| to loop map needed when unrolling and outputting debugger info. |
| (scan_loop): Fix setting of maybe_never of label/jump. The old code |
| always failed. |
| (prescan_loop): Delete obsolete code. |
| (find_and_verify_loops): Add code to initialize |
| loop_number_exit_labels. |
| (mark_loop_jump): Add code for keep chain of loop_number_exit_labels |
| for each loop. |
| (invariant_p): LABEL_REFs are not invariant when doing loop unrolling. |
| Remove static from definition, so that it can be called from unroll.c. |
| (strength_reduce): Change name of variable maybe_never to |
| not_every_iteration, to help emphasize that it is not the same |
| as the variable maybe_never in the code motion code. Modify code |
| that computes its value so that it will be false more often, resulting |
| in better code. |
| (strength_reduce): Added code to call the new loop unrolling |
| functions, e.g. unroll_loop, loop_iterations, etc. |
| (strength_reduce): New code to handle biv's and giv's which must |
| be set to their final_value after the loop exits. |
| (strength_reduce): Reversed giv's and biv's must have their values |
| calculated differently. Add new field reversed to struct induction, |
| and code to check and use its value. |
| (strength_reduce): Only check value of bl->nonneg for architectures |
| that have a decrement_and_branch_until_zero instruction. |
| (find_mem_givs): New argument loop_start. |
| (record_giv): New argument loop_start. |
| The always_computable field for DEST_ADDR givs is always set true. |
| New code to check for case of spaghetti code, in which case the |
| giv can never be considered replaceable. |
| (check_final_value): New function. For givs which are not otherwise |
| replaceable, try to calculate their final value, and then try |
| to use this to make them replaceable. |
| (update_giv_derive): Skip inner loop if giv is known to be underivable |
| at the beginning. Must set cant_derive if we pass an insn that |
| modifies the giv's biv, and we can't calculate an adjustment. |
| (emit_iv_add_mult): Remove static definition so that it is callable |
| from unroll.c. |
| (check_dbra_loop): Reversed biv's must be marked as such, so that |
| they can be treated specially in the rest of loop.c. |
| (final_biv_value): Moved to unroll.c, alongside the new function |
| final_giv_value. Extensively rewritten to work for most common |
| cases. |
| (update_reg_last_use): Verify that insns have a valid luid before |
| trying to use it. Don't perform any action if no value luid. |
| (get_condition): Correct initial comment. |
| (get_condition_for_loop): Remove static definition so it is callable |
| from unroll.c. |
| |
| * integrate.h: Replace `tree' use in definition with |
| `union tree_node *' so that tree.h does not have to be included when |
| this file is included. |
| |
| * integrate.c (initialize_for_inline): Pass additional argument, |
| the DECL_INITIAL (fndecl) tree, to gen_inline_header_rtx. Update |
| and correct comment. |
| (save_for_inline_copying): Copy the decl tree, so that virtual reg |
| instantiation, and loop unrolling, won't affect the saved tree. |
| (copy_decl_tree): New argument, functionbody, which distinguished |
| between calls from save_for_inline_copying and calls from |
| expand_inline_function. |
| (copy_rtx_and_substitute): Return orig instead of aborting when |
| inline_target is zero so that loop unrolling can use this code. |
| |
| * gcc.texinfo: Document the new optimization flags -funroll-loops |
| and -funroll-all-loops, the new dump option -dt, and the new named |
| pattern "decrement_and_branch_until_zero". |
| |
| * flags.h: Define two new flags, flag_unroll_loops and |
| flag_unroll_all_loops. |
| |
| * emit-rtl.c (gen_inline_header_rtx): New argument |
| original_decl_initial. Pass to gen_rtx call. |
| |
| * alliant.md, m68k.md: Name the pattern that uses the REG_NONNEG |
| note to "decrement_and_branch_until_zero". |
| |
| * Makefile.in: Add source file unroll.c and header file loop.h to |
| the cc1 dependencies. Add *.cse2 to the list of files deleted by |
| `make clean'. |
| |
| Thu Apr 4 16:13:37 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * varasm.c (assemble_constructor, assemble_destructor): New functions. |
| They use ASM_OUTPUT_CONSTRUCTOR and ASM_OUTPUT_DESTRUCTOR. |
| * cplus-decl2.c (finish_file): Use them. |
| |
| * reload.c (find_reloads): Pass location as outloc for output reload. |
| |
| * objc-actions.c (objc_class_id, synth_module_prologue): |
| Initialize new variable to hold identifier for "objc_class". |
| |
| * objc-actions.c (objc_comptypes): Allow assigning between types |
| id and Class without warning. |
| |
| * c-typeck.c (warn_for_assignment): When there is a type mismatch |
| in the hidden arguments of a message expression, don't print the |
| argument number as 0 or -1. Instead print the warning as would |
| be done for an explicit call to objc_msgSend (this should never |
| happen, but just in case). |
| |
| * emit-rtl.c (gen_lowpart): Reverse #if for CONST_DOUBLE case. |
| |
| Thu Apr 4 13:27:02 1991 Michael Meissner (meissner at osf.org) |
| |
| * hard-reg-set.h (SET_HARD_REG_BIT, CLEAR_HARD_REG_BIT, |
| TEST_HARD_REG_BIT): Use unsigned arithmetic to isolate the word and |
| bit number, which produces better optimized code. |
| |
| Thu Apr 4 07:34:17 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reorg.c (relax_delay_slots): Avoid adjusting LABEL_NUSES if the |
| insn is a conditional return. |
| |
| * reload1.c (reload): If we find that a replacement cannot be |
| done and that replacement now enables a secondary replacement, |
| this may disable a third replacement in some cases. |
| (eliminate_regs, case SET): Don't stop after we find the first |
| match when looking for modified registers. |
| |
| * combine.c (previous_num_undos): New var. |
| (try_combine): Set it after each call to subst. |
| When substituting I1 into I2, somtimes make a copy of PATTERN (i2). |
| (gen_rtx_combine): Start at PREVIOUS_NUM_UNDOS. |
| |
| * combine.c (can_combine_p): Start check for volatile references |
| after INSN, not at INSN. |
| |
| * combine.c (try_combine): When we find a split point, ensure |
| that I2 is a register. If it is of the wrong mode, change the |
| mode if we can, just like we do with CCmode registers. |
| (find_split_point): Don't split an extraction if it crosses the |
| boundary given by the field (i.e., a byte boundary if QImode). |
| Correct typo: Should generate LSHIFTRT, not LSHIFT. |
| (subst): Correctly test to see if we can change the mode of |
| a register for a MODE_CC comparison. |
| (distribute_notes): If a NOTE references a pseudo-register, |
| ensure it references the latest copy of that register. |
| When scanning for last use, don't stop at CALL_INSNs. |
| |
| * combine.c (expand_compound_operation): Don't get confused about |
| (zero_extend (asm_operands ..)) because of the VOIDmode ASM_OPERANDS. |
| (simplify_and_const_int): Ensure we do computations in proper mode. |
| Simplify ZERO_EXTRACT and ZERO_EXTEND when we have a PLUS. |
| (significant_bits): Don't call get_last_value on a SUBREG, just REG. |
| Correct significant bits for comparison operations. |
| (simplify_shift_const): When VAROP is logical, use proper mode when |
| computing shifted constant. |
| |
| * combine.c (gen_lowpart_for_combine): Call gen_lowpart if we have |
| a CONST_DOUBLE. |
| |
| * genconfig.c (walk_insn_part, main): Write a definition |
| for HAVE_lo_sum if a LO_SUM is present in the machine description. |
| |
| * combine.c (try_combine): If we have a PARALLEL of a SIGN_EXTEND |
| and a load of memory, split it into a load and SUBREG assignment. |
| (find_split_point): If we have LO_SUM for this machine, |
| split (mem (symbol_ref ..)) using HIGH and LO_SUM. |
| If we have operation with second operand constant, maybe we couldn't |
| fit the constant in the insn, so try to split there. |
| Move NOT to first operand so we'll try to split the other operand |
| first. |
| (subst): No reason to avoid making paradoxical SUBREGs and we miss |
| some optimizations if we don't. |
| Convert (lo_sum (high FOO) FOO) to FOO. |
| Convert (C1 + (x + C2) to (C1 - C2) - x. |
| Use distributive law in more places with logical operations. |
| (apply_distributive_law): Properly distribute IOR over XOR. |
| (simplify_shift_const): Simplify (ashift (plus ..) ...). |
| (simplify_comparison): Add code to remove extraneous AND |
| operations when comparing result of two comparisons on some machines. |
| Ignore bits not applicable in our mode. |
| Treat some SUBREGs as ZERO_EXTENDs. |
| Convert equality comparison of AND with sign bit into LT or GE |
| comparison. |
| |
| * combine.c (gen_binary, gen_unary): New functions. |
| (apply_distributive_law, simplify_shift_const): Use gen_binary. |
| |
| Wed Apr 3 16:15:17 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * Makefile.in (gnulib): Insert only .o files in combined archive. |
| (gnulib1.portable): Use $(HPXT). |
| * make-hp9k320g: Define HPXT. |
| |
| * From wilson@cygnus.com. |
| * sched.c (schedule_block): Delete previously unused variable last_q. |
| Correct handling of registers with multiple lifetimes within a single |
| block, always save lifetime info, and clear the appropriate bit in |
| old_live_regs. Delete now unused variable sched_reg_n_sets. |
| |
| Wed Apr 3 07:43:35 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * tm-romp.h (CONST_COSTS): All CONST_INTs are cost 0. Symbolic |
| values cost two insns. |
| |
| * function.c (fixup_var_refs_1): Correctly perform position |
| computation for bit extracts; disallow mode-dependent addresses. |
| (optimize_bit_field): Likewise. |
| Remove explicit mention of HImode and QImode by calling mode_for_size. |
| No need to check for offsettable_address_p; we call change_address |
| and are not called after reload; don't call adj_offsettable_operand. |
| * recog.c (validate_replace_rtx_1): Correct endian computation |
| and don't change mode of a MEM with a mode-dependent address. |
| |
| * expmed.c (expand_divmod): Try to figure out what mode will be used |
| and convert to that once at the beginning, rather than repeatedly, |
| since we may be writing jumps. |
| |
| * vax.md ({zero,sign}_extract patterns): Field width is QImode, not |
| SImode. |
| |
| Tue Apr 2 08:42:23 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cse.c (simplify_ternary_operation): Add argument for previous |
| mode of operand 0. |
| Don't do anything for extractions if bits don't fit in OP0_MODE. |
| Use OP0_mode instead of mode of OP0 for endian correction. |
| (fold_rtx): Pass new operand to simpllify_ternary operation. |
| * integrate.c (subst_constants): Add extra arg to call to |
| simplify_ternary_operation and call for rtx class 'b'. |
| * combine.c (find_split_point): Don't split an extract when the |
| bits are outside the mode of operand 0. |
| (subst): Pass new parameter to simplify_ternary operation and call |
| for rtx class 'b'. |
| (subst, case ZERO_EXTRACT): Don't change the mode of a MEM |
| if it is a mode-dependent address. |
| Correctly do endian adjustments so they are correct for fields that |
| go outside a byte boundary. |
| (subst, case {ZERO,SIGN}_EXTRACT): Don't adjust MEM here for non-dest |
| objects; already done in make_compound_operation. |
| (make_compound_operation): Rework code that makes extracts and |
| extends to correcty compute positions, taking into account the fact |
| that field can cross byte boundaries. Remove redundant adjustments. |
| Use mode_dependent_address_p to validate changing modes of MEM. |
| (simplify_shift_const): Check for mode-dependent address when |
| changing mode of a MEM. |
| (gen_lowpart_for_combine): Likewise. |
| |
| * expmed.c (expand_shift): Code to use extzv for logical right shift |
| had numerous assumptions about specific modes and did not validate |
| operands properly. |
| |
| * expr.c (expand_expr, case NOP_EXPR): If no target was specified, |
| use convert_to_mode instead of convert_move; this may return a SUBREG. |
| |
| * expr.c (do_jump): Conversion isn't NOP if it narrows the object. |
| If testing A & CONST and the result fits in a smaller mode, try |
| the compare there. |
| |
| * cse.c (simplify_binary_operation): If eliminating reference to |
| operand, verify that it has no side effects. |
| Add cases for "a | (~a)" and "a & (~a)". |
| |
| * recog.c (register_operand): Only call general_operand for |
| (subreg (mem ...) X), not all SUBREGs. |
| |
| * jump.c (jump_optimize): Remove needless incrementing of LABEL_NUSES |
| which can cause a dead label not to go away. |
| |
| Mon Apr 1 19:08:40 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cse.c (cse_insn): Add missing call to insert_regs. |
| |
| Mon Apr 1 18:21:33 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * optabs.c (init_optabs): Change #if to #ifdef. |
| |
| * loop.c (check_dbra_loop): Take out Feb 24 change. |
| |
| Sun Mar 31 22:43:39 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * final.c (insn_counter): New variable. |
| (final_scan_insn): Increment it. |
| (output_asm_insn): Use it for %=. |
| |
| Sun Mar 31 22:16:31 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * out-a29k.c (output_prolog): Correctly write stack size in tag word. |
| |
| * out-a29k.c (srcb_operand): If QImode, any constant is OK since |
| we only care about 8 bits. |
| (print_operand): Add %Q for QImode srcb values. |
| * a29k.md (QImode patterns): srcb's that accept constants should have |
| 'n' constraint, not 'I'; use %Q to output. |
| |
| * reload1.c (gen_input_reload): Properly generate reload when we are |
| adding a pseudo and a hard register. |
| |
| * cse.c (simplify_unary_operation): Don't use ffs. |
| |
| Sun Mar 31 20:59:52 1991 Micheal Tiemann (tiemann at pogo.gnu.ai.mit.edu) |
| |
| * gnulib1.c (perform_ash{l,r}si3): Fix typo that had these |
| performaces swapped. |
| |
| Sun Mar 31 13:35:50 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * rtl.h (FIND_REG_INC_NOTE): New macro. |
| * rtl.h (AUTO_INC_DEC): Define here. |
| * flow.c (AUTO_INC_DEC): Not here. |
| * combine.c (can_combine_p, try_combine): Use FIND_REG_INC_NOTE. |
| Make other scans for REG_INC notes conditional on AUTO_INC_DEC. |
| * final.c (final_scan_insn): Use FIND_REG_INC_NOTE. |
| * jump.c (delete_jump): Likewise. |
| * loop.c (get_condition): Likewise. |
| * reload.c (find_reloads_address_1, find_equiv_reg): Likewise. |
| * reload1.c (reload_as_needed): Likewise. |
| * reorg.c (delete_scheduled_jump, mark_set_resources): Likewise. |
| * global-alloc.c (global_conflicts): Likewise. |
| |
| * dbxout.c (dbxout_type): For integers, reals, and arrays, |
| use actual type number of int or char, in case those are not 1 and 2. |
| |
| * toplev.c (compile_file): Take out last change (regarding lang_init). |
| |
| * emit-rtl.c (sequence_element_free_list): Change data type. |
| (get_last_insn_anywhyere, add_insn_after): Finish last change. |
| |
| * expr.c (expand_builtin): Finish last change. |
| |
| Sat Mar 30 15:16:16 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * function.h (struct sequence_stack): New data type. |
| (sequence_stack): Declare variable. Use new data type. |
| * emit-rtl.c (get_last_insn_anywhere, add_insn_after): Adapt to that. |
| (start_sequence, end_sequence, in_sequence): Likewise. |
| (start_sequence): Allocate stack links as permanent. |
| (init_emit_once): Init sequence_stack here. |
| (init_emit): Not here. |
| * function.c (push_temp_slots, pop_temp_slots): |
| (expand_function_end): Use in_sequence. |
| (fixup_var_refs): Use new data type. |
| (put_var_into_stack): Don't declare sequence_stack. |
| |
| * function.c (expand_function_start): |
| Trace static chain properly past first link. |
| |
| * ns32k.md (andcbhi3, andcbqi3): Constraint shouldn't say commutative. |
| |
| Sat Mar 30 02:06:20 1991 North-Keys (erlkonig at apple-gunkies.gnu.ai.mit.edu) |
| |
| * c-decl.c (init_decl_processing): Fix typo `integer_tpe_node'. |
| * dbxout.c (dbxout-symbol): Added char * declaration for `name'. |
| * objc-actions.c (encode_array): Avoid returning a value. |
| |
| Fri Mar 29 15:59:22 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * c-decl.c (init_decl_processing): Define __builtin_constant_p. |
| * expr.c (expand_builtin): Implement it. |
| * tree.h (enum built_in_function): New alternative. |
| |
| * toplev.c (compile_file): Move lang_init call after debugger init. |
| |
| * gcc.c (default_compilers): Define __cplusplus for C++ code. |
| |
| * c-decl.c (start_function): Use 0 for name of result decl. |
| (value_identifier): Variable deleted. |
| |
| * dbxout.c (dbxout_type): Handle LANG_TYPE. |
| (dbxout_symbol): Handle RESULT_DECL. |
| Handle variables with constant values that are not output. |
| Use the mangled name when appropriate. |
| (dbxout_tags): Output equivalent typedef when appropriate. |
| (dbxout_function): Output the DECL_RESULT if it has a name. |
| |
| * varasm.c (assemble_variable): Delete calls to set_current_gdbfile. |
| |
| Thu Mar 28 16:14:13 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * gcc.c (main): Calculate basename_length to exclude last period. |
| |
| * optabs.c (expand_binop, expand_unop): |
| When widening, don't keep CONST_INT beyond a single word. |
| |
| * tm-vax.h (CHECK_FLOAT_VALUE): Change float max to ...444e+38. |
| |
| * Makefile.in (gnulib1, gnulib2.portable): |
| Make test of $$? normally succeed, not normally fail. |
| (gnulib1): Don't use -e in second loop. Test explicitly instead. |
| |
| * dbxout.c (lastfile): New static variable. |
| (dbxout_init): Initialize lastfile. |
| * final.c (lastfile): Deleted. |
| (init_final): Don't set lastfile. |
| |
| * final.c (set_current_gdbfile): Function deleted. |
| (output_source_line): Handling of GDB debugging info deleted. |
| (final_start_function, final_end_function): Likewise. |
| |
| Thu Mar 28 09:58:18 1991 Micheal Tiemann (tiemann at pogo.gnu.ai.mit.edu) |
| |
| * cplus-decl.h (decl_context): Add missing declaration for BITFIELD. |
| |
| * tm-sparc.h (CC1_SPEC): Change to handle new interpretation of -O2. |
| (OPTIMIZATION_OPTIONS): Use this macro to control default expensive |
| optimizations. |
| (MODES_TIABLE_P): Use GET_MODE_CLASS to simplify this macro. |
| (FUNCTION_ARG,FUNCTION_ARG_PARTIAL_NREGS): Make sure TYPE is nonzero |
| before we use it. |
| (FUNCTION_BLOCK_PROFILER): Fix a bug in the asm code. |
| (EXTRA_CONSTRAINT): For 'S' constraint, if OP is a register, make |
| sure it's not a pseudo. Also, change call to `memory_address_p' to |
| `strict _memory_address_p'. Both of these are for the strict cases. |
| (SLOW_BYTE_ACCESS): Try going with this set 1. |
| * sparc.md: Take advantage of new combiner to handle signed bitfield |
| comparisons and signed sub-word comparisons. |
| Added peepholes for doing subword memory tests and operations. |
| |
| Thu Mar 28 09:43:30 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * emit-rtl.c (start_sequence, gen_sequence): Ensure we allocate rtl |
| on saveable_obstack since we will be saving it and we may be called |
| from an optimizer that will reuse allocated memory in current_obstack. |
| |
| Wed Mar 27 18:46:27 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * toplev.c (main): Print version with -version, regardless of |
| -quiet. |
| |
| * Makefile.in (gnulib, gnulib2.ready): Put `-' before `if'. |
| |
| * make-hp9k320, make-hp9k320g (CC, OLDCC): Delete -lsetjmp. |
| Add -Wc,-Nw2000. |
| |
| * dbxout.c (dbxout_source_file): New name for fn moved from final.c. |
| * final.c (output_source_file): Moved to dbxout.c. Callers changed. |
| (output_source_line): Call dbxout_source_file. |
| |
| Wed Mar 27 11:09:13 1991 Micheal Tiemann (tiemann at pogo.gnu.ai.mit.edu) |
| |
| * version.c: Bumped to version 1.92. |
| |
| * final.c (output_source_{file,line}): Fix bug in new handling of |
| "Ltext". |
| |
| * cplus-cvt.c (build_up_reference): Handle BIND_EXPR. |
| |
| * Makefile.in (cplus-lex.o): depend on cplus-input.c. |
| * cplus-input.c: New file. |
| |
| * cplus-method.c (do_inline_function_hair): Call a different |
| `prepare_inline', and don't deal with pending_inlines here. |
| * cplus-lex.c (do_pending_inlines): Deal with pending_inlines |
| here... |
| (reinit_parse_for_method): ...and here. |
| |
| * cplus-decl.c (grok_ctor_properties): Use TYPE_NAME_STRING where |
| appropriate. Also, don't assume that CURRENT_CLASS_TYPE is what we |
| use for error message; use CTYPE instead. |
| |
| * cplus-type2.c (digest_init): Strip NON_LVALUE_EXPRs. |
| |
| * cplus-tree.c (__eprintf): Added this function from gnulib2 until |
| gnulib configuration is worked out. |
| |
| * cplus-parse.y (member_init): Call do_member_init. Previous code |
| was wrong (using a goto to factor common code) because the parse |
| stack was different in the two contexts. |
| * cplus-init.c (do_member_init): New function. |
| |
| * cplus-typeck.c (build_compound_expr): Convert arrays to pointers. |
| (build_c_cast): Warn about possible alignment problems. |
| |
| Wed Mar 27 05:55:32 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reload.c (find_reloads): Disallow a PLUS as an operand even if |
| "g" is in the constraint; this is only valid for "p". |
| |
| Tue Mar 26 06:46:48 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * local-alloc.c (block_alloc): Have insn numbers start at 1, not 2. |
| |
| * rtlanal.c (replace_regs): Move to here; add new parameter. |
| * loop.c (replace_regs): Delete from here. |
| (move_movables, strength_reduce): Pass new parameter to replace_regs. |
| * jump.c (duplicate_loop_exit_test): Make new pseudos for pseudos |
| used only in loop exit test; this prevents unnecessay sharing |
| between code inside and outside of loop. |
| * toplev.c (rest_of_compilation): Call reg_scan before jump. |
| |
| * combine.c (distribute_notes): If we are searching back for the last |
| use of a register I3 and I2 no longer use and the last use is a SET |
| of that register, place a REG_UNUSED note instead of a REG_DEAD note. |
| No longer need handle REG_DEAD note for output of I3; it will now be |
| a REG_UNUSED note. |
| |
| * combine.c (try_combine): If I3SRC is a register and I2 is a |
| multi-output insn, see if we can replace one of the outputs with |
| I3DEST. If so, move LOG_LINKS pointing at the other outputs to |
| now point to I3 instead of I2. |
| |
| * rtlanal.c (single_set): Return 0 if not an insn. |
| Only ignore SET with unused output if it has no side effects. |
| (side_effects_p): New function. |
| * combine.c (can_combine_p): Only ignore SET with unused output if |
| it has no side effect. |
| Don't extend the life of a hard register. |
| (try_combine): Always give up if I1 or I2 used reg inc'd in I3. |
| (significant_bits): Return mode mask if mode wider than host int. |
| Don't get confused by (zero_extend (const_int ..)) and similar where |
| the inner mode is VOIDmode. |
| Arithmetic operations now always have same modes on operands as |
| on the result. |
| |
| * jump.c (jump_optimize): Set this_is_{simple,cond}jump at the start |
| of loop, not in middle, and use consistently. |
| Use can_reverse_comparison_p in case where we make scc insn. |
| Don't use can_reverse_comparison_p when we call invert_jump. |
| Use indirect_jump instead of indirect_exp. |
| Check invert_jump's result before making any other changes; handle |
| failure. |
| Simplify code that looks for and deletes USE insns. |
| (jump_back_p): Call can_reverse_comparison_p only if we have to |
| reverse the comparison. |
| (can_reverse_comparison_p): Accept comparison expression and insn |
| it comes from. |
| Rework to be more general now that we have MODE_CC and tighten |
| up a bit. |
| (invert_jump): Allow invert_exp and redirect_jump to fail. |
| (invert_exp): Only invert jump, don't change target. |
| If can reverse comparison code, try it using validate_change. |
| If that doesn't work, swap the arms of the IF_THEN_ELSE. If that |
| doesn't work, return 0. |
| (redirect_exp): Now static. |
| * expr.c (do_jump_for_compare): Call invert_jump to invert jump |
| to false label after emitting jump; if this fails, convert to |
| jump around unconditional jump to false label. |
| (do_store_flag): Set to 1 first, then branch, then set to 0. This |
| avoids inverting branches. |
| * reorg.c (optimize_skip, relax_delay_slots): Always allow invert_jump |
| to fail. |
| * rtlanal.c (single_set): Return 0 if not INSN, CALL_INSN, |
| or JUMP_INSN. |
| |
| * reload1.c (eliminate_regs): If any eliminable regs occur in a USE, |
| eliminate them. |
| |
| Tue Mar 26 00:09:18 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * c-decl.c (implicitly_declare): Always make implicit decl permanent. |
| |
| Mon Mar 25 16:38:14 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * genextract.c (walk_rtx): Record operand numbers that are seen. |
| (gen_insn): If there are gaps in operand numbers, make code to store |
| something for the operands not used in this pattern. |
| (main): Initialize data structures. |
| |
| * c-typeck.c (initializer_constant_valid_p): |
| Always allow length-preserving conversions between integer types. |
| |
| * regclass.c (reg_class_record): Return right away if operand is 0. |
| |
| * c-decl.c (duplicate_decls): Warn if declare fcn inline after calls. |
| |
| * reload.c (combine_reloads): |
| Test reg_overlap_mentioned_p in both directions. |
| |
| Mon Mar 25 15:05:29 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * genoutput.c (output_epilogue): Choose a name for an unnamed |
| pattern as an offset from the closest named pattern. Define |
| `insn_name_ptr' as a pointer to `insn_name' for use by print_rtx. |
| * final.c (output_asm_insn): Use the pattern name chosen by |
| genoutput and output the INSN_UID as well. |
| * rtl.c (insn_name_ptr): Provide an alternate definition to avoid |
| link errors when rtl.o is not linked with insn-output.o. |
| (print_rtx): When printing the INSN_CODE field of an insn, print |
| the name if it is available. |
| |
| Mon Mar 25 09:39:43 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * regs.h (reg_first_use): Deleted. |
| * rtl.h (REG_UNSET): Deleted. |
| (REG_UNUSED): New note. |
| * combine.c (combine_instructions): Delete loop fixing up |
| reg_first_use. |
| (can_combine_p): Ignore a branch of a PARALLEL if its output is |
| never used. |
| (move_deaths): Don't update reg_first_use. |
| (distribute_notes): Don't handle REG_UNSET; add code for REG_UNUSED. |
| * flow.c (reg_first_use): Deleted. |
| (life_analysis): Restore code that marks vars live at start of function |
| as globals. These are registers that were never set. |
| (allocate_for_life_analysis): Don't allocate reg_first_use. |
| (propagate_block): Search for cc0-setting insn with prev_nonnote_insn. |
| (mark_set_1): Don't set reg_first_use. |
| If register is never used, make REG_UNUSED note, not REG_DEAD. |
| (mark_used_regs): Don't set reg_first_use. |
| * global-alloc.c (global-conflicts): Dead outputs are now denoted by |
| REG_UNUSED notes, not REG_DEAD. |
| * reload.c (find_dummy_reload): Delete test of REG_UNSET; add test |
| of REG_UNUSED. |
| (find_equiv_reg): Don't re-use an output marked as REG_UNUSED; |
| we want these notes to be accurate; this would rarely win anyway. |
| * reload1.c (emit_reload_insns): Test REG_UNUSED to see if an |
| output won't be used any more. |
| * reorg.c (mark_target_live_regs): Use REG_UNUSED notes to kill |
| registers dead after an insn. |
| * rtl.c (reg_note_name): Delete REG_UNSET, add REG_UNUSED. |
| * rtlanal.c (single_set): Ignore a SET whose output has a REG_UNUSED |
| note. |
| * sched.c (update_first_use): Deleted. |
| (update_links): No need to call update_first_use. |
| |
| * local-alloc.c: Major changes to use REG_UNUSED notes, make |
| handling of only-set registers more consistent, and allow |
| two consecutive CLOBBERs to share a register. Also, avoid loops |
| over all register each basic block; eliminating these make local-alloc |
| three times faster! |
| Quantity numbers now start at zero. |
| (qty_first_reg, reg_next_in_qty): New variables. |
| (qty_clobber): No longer needed. |
| (reg_qty): -1 if register cannot be allocated by local-alloc. |
| Now undefined for hard registers. |
| (reg_offset): Now char *. |
| (call_seen): Deleted, never used. |
| (regs_live_at): Now two entries per insn. |
| (alloc_qty): Initialize chain of register in quantity. |
| (local_alloc): Remove all per-block loops over registers. |
| Only allocate qty_... vars for max_reg - FIRST_PSEUDO_REGISTER. |
| Initialize reg_qty once per function. |
| Don't initialize qty_... vars that are always set before use. |
| (block_alloc): Delete insn_map, max_uid, and call_used. |
| Insn numbers start at 1 and we have two entries in regs_live_at |
| for each insn. |
| Search for REG_NO_CONFLICT block when we see a CLOBBER insn; this |
| avoids having already seen sets to the output register. |
| Call wipe_dead_reg for anything in a REG_UNUSED note. |
| Delete references to reg_first_use. |
| Don't check for invalid birth and death here. |
| Don't call qsort if we have 0 or 1 quantities. |
| Find all registers for a quantity using reg_next_in_qty chain instead |
| of looping over all pseudos. |
| (combine_regs): Refine tests to agree with new conventions. |
| Never tie pseudos if SREG already has a quantity assigned. |
| When updating size, use reg_next_in_qty instead of looping over |
| all registers. |
| (reg_is_set): Just call reg_is_born. Where it is born depends on |
| whether we have a CLOBBER or not. Birth location is now twice |
| the insn number. |
| (reg_is_born): Handle case when a hard reg is born before the |
| current insn. |
| Show we don't know the death location. |
| (wipe_dead_reg): Parameters are now just register and an in/out flag. |
| Death locations are now twice the insn number. |
| Support hard regs that die immediately after current insn. |
| Don't make REG_UNSET notes. |
| (find_free_reg): Validate BIRTH and DEATH here. |
| We no longer have qty_clobber. |
| (post_mark_life): Eliminate CLOBBER parameter. |
| (no_conflict_p): Now passed CLOBBER at start of block. Return 0 if |
| can't find death note or if R1 is a hard register. |
| |
| * m68k.md (divsi3, udivsi3): Remove patterns. Using divmodsi4 and |
| udivmodsi4 produces better code. |
| (divmodsi4, udivmodsi4): If remainder isn't needed, use divsl/divul |
| instead of divsll/divull. |
| |
| * integrate.c (expand_inline_function): Remove change of March 20th. |
| Instead, expand args in two passes. First, expand all that go |
| into registers. Then do those in memory with store_expr. |
| |
| * integrate.c (initialize_for_inline): Put the original copy of the |
| address into ARG_VECTOR; the new one will be modified. |
| |
| * reload.c (push_reload): Handle paradoxical SUBREGs on an output |
| as well as an input. |
| |
| * flow.c (mark_label_ref): Don't blow up when X is 0. |
| |
| * combine.c (make_compound_operation): Fix typos; result of |
| exact_log2 is interesting if >=0. |
| |
| * a29k.md (store_multiple): Allow gen_store_multiple{_no,}_bug to fail; |
| we fail if they do. |
| |
| * reorg.c (emit_delay_sequence): Record that we deleted a BARRIER |
| and restore it precisely on those occaisions. |
| |
| Sun Mar 24 21:19:55 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * gcc.c (xmalloc, xrealloc): Change error message. |
| * toplev.c (various): Change error messages. |
| |
| * final.c (final_scan_insn): Handle ASM_OUTPUT_LOOP_ALIGN. |
| |
| * calls.c (emit_call_1): Pass number of bytes to pop to call_pop. |
| * vax.md (call_pop, call_value_pop): Use that arg. |
| |
| Sat Mar 23 23:28:59 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * Makefile.in (version): Run awk, not gcc, to get this value. |
| |
| Sat Mar 23 18:04:23 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cse.c (simplify_unary_operation): Add missing cases for ABS and FFS. |
| |
| * alliant.md: Eliminate unneeded patterns: HImode zero_extract, |
| (set (cc0 (subreg ...))), (set (cc0) (and ...)), |
| (and (zero_extend ...) ...), shift right of 24 and 16. |
| Use alternatives to select assembler template when possible. |
| Use const_int_operand instead of immediate_operand when |
| possible to avoid explicit test for CONST_INT. |
| Write add-and-branch patterns with PLUS removed, the way combine |
| produces them. |
| |
| * rtlanal.c (refers_to_regno_p): If X is a SUBREG of a hard |
| register, treat it as if it were the appropriate register. |
| CLOBBER doesn't refer to anything. |
| |
| * final.c (final_scan_insn): Use prev_nonnote_insn, not PREV_INSN, |
| to find cc0-setting insn from cc0-using insn. |
| |
| * global-alloc.c (find_reg): Don't look for other registers to |
| renumber unless we know that we are sharing registers. |
| |
| * emit-rtl.c (end_sequence): Fix typo that prevented speedup of |
| Dec 26th from doing anything. |
| |
| * toplev.c (do_abort): New function, just calls abort. |
| (main): Set lang_expand_expr to address of do_abort; abort might be |
| a macro that is more than just a function name. |
| |
| * cse.c: (qty_... variables): Refined to be undefined for indices |
| less than MAX_REG. Thus, we need not intialize them at the start |
| of a basic block and can instead inialize a quantity as we create it. |
| (reg_{next,prev}_eqv): These variables will now be defined only when |
| reg_qty[N] != N and hence need not be initialized every block either. |
| (new_basic_block): Need not initialize reg_rtx for new block; the |
| only time we can inherit values from previous blocks is for hard |
| regs and it doesn't matter in that case. |
| |
| * c-parse.y (yylex): Avoid use of size_t; it may not be defined. |
| Cast alloca to (char *). |
| |
| * out-romp.c (update_cc): cc_status.value[12] can also be a COMPARE, |
| so use reg_overlap_mentioned_p to see if an insn that modifies a |
| register invalidates cc0. |
| |
| * reorg.c (link_cc0_insns): If next insn is a SEQUENCE, the insn |
| using cc0 is the first insn in the sequence. |
| (mark_target_live_regs): Don't assume that a REG_DEAD note always |
| refers to a register. |
| |
| Sat Mar 23 15:35:59 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * reload1.c (reload_reg_free_before_p): |
| An input reload is use before an output or output address reload. |
| |
| * genoutput.c (validate_insn_alternatives): New function. |
| Loop over insn's alternatives to find out how many |
| alternatives the insn pattern is to support. Verify that if |
| any alternatives are specified for a given operand that the |
| number of alternatives match the numer of alternatives for |
| this insn. |
| (gen_{insn,peephole,expand,split}): Call |
| `validate_insn_alternatives' after scanning the insn. This |
| sets up the value N_ALTERNATIVES for the insn so that |
| `process_template' can check that the number of alternitves |
| given matches the number of asm choices for `@' constructs. |
| |
| Sat Mar 23 08:09:57 1991 Michael Meissner (meissner at osf.org) |
| |
| * dbxout.c (toplevel, dbxout_init): Instead of always using `Ltext' |
| as the label at the beginning of the text region, properly localize |
| it, so that machines which do not put leading underscores in front |
| of external names do not have a problem if the user uses `Ltext'. |
| (dbxout_init): Call text_section before putting out localized |
| `Ltext', in case ASM_FILE_START put us into a different section. |
| |
| Fri Mar 22 19:26:23 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * a29k.md (jumpfdec): Simplify pattern to match what combine will |
| produce; remove reversed pattern. |
| * out-a29k.c (gen_reg_operand): Speed up by not calling |
| register_operand; check register number ourself. |
| |
| * out-romp.c (update_cc, case CC_COMPARE): Call CC_STATUS_INIT. |
| * romp.md: In pattern that sets cc0 and copies a register to another |
| register, allow the output to be in memory so that we don't get an |
| output reload, which will cause problems. |
| |
| * varasm.c (assemble_variable): Ensure DECL_INITIAL is non-zero |
| before we reference it; it might be zero if -fno-common. |
| |
| Fri Mar 22 16:11:35 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * toplev.c (abort): Don't declare if defined as macro. |
| |
| Fri Mar 22 11:49:43 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * m88k.md (bxxu): Don't attempt to use bcnd. |
| (umulsi3, ashift/and): Remove these patterns. |
| (dummy): This must be a define_expand. |
| * out-m88k.c (m88k_handle_pragma_token): Handle #pragma weak. |
| * tm-m88k.h, tm-m88kdgux.h, tm-m88ksvr4.h, tm-v88r32.h: Various |
| changes to support SVR4, including support for #pragma weak. |
| (SLOW_BYTE_ACCESS): Better code if this is true. |
| |
| Thu Mar 21 09:15:47 1991 Tom Wood (wood at gen-rtx) |
| |
| * c-parse.y (MULTIBYTE_CHARS): New macro. |
| (init_lex): Change to the native locale. |
| (yylex): Process wide character literals and wide character string |
| literals using mbtowc and mbstowcs based on MULTIBYTE_CHARS. |
| |
| Thu Mar 21 15:46:45 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * rtlanal.c (dead_or_set_p): A register is dead if it is assigned |
| via a SUBREG that references the all the words in the register. |
| |
| * tm-vax.h (CONST_OK_FOR_LETTER_P): Define `I' to be constant zero. |
| (CONST_DOUBLE_OK_FOR_LETTER_P): Define `G' to be floating zero. |
| (CONST_COSTS): +/- 1 should be very cheap due to decl/inc/aob/sob. |
| (PRINT_OPERAND): Add `P', `N', `H', and `B'. |
| * vax.md: Rework many patterns to avoid C code for output template; |
| use "@" construct whenever possible. |
| Use INSN_DELETED_P. |
| Remove extendsidi2; the supplied pattern does exactly what convert_move |
| will do when the pattern is not present. |
| Use constm1_rtx to check for constant of -1. |
| Add mulsidi3 and related add-multiply pattern for emul insn. |
| Use const_int_operand as predicate instead of checking for CONST_INT. |
| Remove unneeded (set (pc) (if_then_else (ne (and ...) ...) ...)) |
| patterns. |
| Merge jlbs and jbs and similarly for jlbc and jbc. |
| Remove unneeded reverse branch patterns for above insns. |
| Rewrite patterns for add-and-branch insns to take into account |
| simplifications done by combine and remove reversed cases. |
| Convert peepholes for optimizing extzv followed or preceeded by andl |
| into patterns for a single insn. |
| |
| Thu Mar 21 15:46:21 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * toplev.c (abort): Declare it. |
| |
| Thu Mar 21 08:16:12 1991 Michael Meissner (meissner at osf.org) |
| |
| * va-mips.h (whole file): Replace with the 1.39 version of this |
| file, which was a total rewrite of the 1.37.1 version. Add |
| primitive support for 2.00. |
| |
| Wed Mar 20 18:31:42 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * jump.c (duplicate_loop_exit_test): Make copy of contents of |
| register note; if it was a REG_EQUAL note, it might have been an |
| arbitrary expression and sharing it can cause problems in cse. |
| |
| * rtl.def (UMULT): Remove unsigned multiply code. |
| * combine.c (subst, significant_bits): Remove code UMULT and |
| support for indicating widening multiply with different modes |
| on the MULT operation vs. its operands. |
| * cse.c (simplify_binary_operation): Remove support for widening |
| multiply. |
| (rtx_code, exp_equiv_p, simplify_binary_operation, cse_insn): Remove |
| code UMULT. |
| * function.c (instantiate_virtual_regs_1): Likewise. |
| * reload1.c (eliminate_regs): Likewise. |
| * local-alloc.c (block_alloc): Likewise; replace with GET_RTX_CLASS. |
| * loop.c (simplify_giv_expr, expr_benefit): Remove code UMULT |
| and support for widening multiply. |
| * optabs.c (init_optabs): Set code of widening multiply tables |
| to UNKNOWN. |
| |
| * a29k.md (mulsidi2, umulsidi2): Rewrite using SIGN_EXTEND and |
| ZERO_EXTEND. Also fix typo in SUBREG_WORD when splitting. |
| * tm-alliant.h, tm-m68k.h (NOTICE_UPDATE_CC): Remove code UMULT. |
| * alliant.md, m68.md (mulhisi3, umulhisi3): Rewrite using |
| SIGN_EXTEND and ZERO_EXTEND. |
| (divhisi3, udivhisi3, modhisi3, umodhisi3): Rewrite using TRUNCATE. |
| * alliant.md, ns32k.md (umulsi3, umulhi3, umulqi3): Remove unneeded |
| patterns that use UMULT. |
| * ns32k.md (umulsidi3): Rewrite using ZERO_EXTEND. |
| |
| * tm-alliant.h (NOTICE_UPDATE_CC): MOD and (trunc (mod ...)) |
| clobber CC. |
| * alliant.md (mod*, umod*): No longer need CC_STATUS_INIT. |
| |
| * recog.c: Include insn-attr.h. |
| (general_operand): If we have insn scheduling, don't allow paradoxical |
| SUBREGs since they can prevent scheduling memory references; they |
| aren't helpful on RISCs anyway and can cause poor register allocation. |
| * Makefile.in (recog.o): Includes insn-attr.h. |
| |
| * cse.c (COST): A register only in NO_REGS isn't a specially-cheap reg. |
| (simplify_unary_operation, case {ZERO,SIGN}_EXTEND): If OP_MODE was |
| given as VOIDmode, use MODE; allow mode size of HOST_BITS_PER_INT. |
| (cse_insn): Don't make SET_SRC equal SET_DEST if doing so will cause |
| two registers to be live containing the same value. |
| (cse_end_of_basic_block): Count SETs in CALL_INSNs and JUMP_INSNs. |
| |
| Wed Mar 20 15:40:48 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * gcc.c (MD_EXEC_PREFIX, MD_STARTFILE_PREFIX): New macros. |
| (md_exec_prefix, md_startfile_prefix): New variables. |
| (process_command): Put those prefixes on the paths. |
| |
| * toplev.c (main): Use abort, not fancy_abort. |
| |
| * integrate.c (expand_inline_function): Use emit_block_move |
| to copy BLKmode parm value. Save size and alignment for this. |
| |
| * gnulib2.c (__builtin_saveregs)[MIPS]: Go to text section. |
| |
| * final.c (final_scan_insn): Don't go to text after jump-tab label. |
| |
| Tue Mar 19 21:27:09 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * tm-a29k.h (SETUP_INCOMING_VARARGS): Always write registers to |
| 0(ap), no matter how many named args are present. |
| |
| * combine.c (subst): In IF_THEN_ELSE, canonicalize to put the (pc) |
| in the second operand if we can reverse the comparison. |
| (significant_bits): Support TRUNCATE and SIGN_EXTEND. |
| |
| * tm-romp.h (CC_UNSIGNED): New flag for cc_status. |
| * out-romp.c (update_cc, case CC_COMPARE): Record the operands of the |
| compare and mark whether the test will be signed or unsigned. |
| (restore_compare_p): New function. |
| * romp.md (conditional branch and return patterns): Use new |
| restore_compare_p to see if we need to tell final to reinclude |
| deleted compare insn. |
| |
| * output.h (const_int_operand): Define. |
| * recog.c (const_int_operand): New function. |
| * out-a29k.c, out-romp.c, out-rs6000.c (const_int_operand): Remove from |
| these. |
| |
| * tree.c (rtl_in_saveable_obstack): New function. |
| * varasm.c (immed_double_const, immed_real_const_1): Ensure that things |
| that get placed on the chain are always put into saveable_obstack. |
| |
| Tue Mar 19 17:21:30 1991 Richard Stallman (rms at mole.gnu.ai.mit.edu) |
| |
| * stddef.h (wchar_t): New typedef. |
| |
| * out-sparc.c (output_block_move): Handle NO_UNDERSCORES syntax. |
| |
| * tm-pbd.h, xm-pbd.h: New files. |
| |
| * toplev.c (report_error_function): Don't crash if between functions. |
| |
| Tue Mar 19 12:58:13 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * sched.c (memrefs_conflict_p): C was being used as offset for X, |
| not for Y. Flipping + and - in offset uses cleared up this problem. |
| ({true,anti,output}_dependence): Add declaration for INSN. |
| (order_calls): Interface changed; now returns void. All callers |
| changed. |
| (sched_analyze_{1,2}): Make dependence between calls and |
| call-clobbered registers explicit. |
| (sched_analyze): Track last_function_call_not_const. |
| (sched_note_set): New parameter DEATH says whether X is marked for |
| death. Also, look through SUBREGs and extractions. |
| (rank_for_schedule): Stabilize for qsort. |
| (attach_deaths): We should not end up with more REG_DEAD notes than |
| we started with, so abort if we run out early. |
| (attach_deaths_insn): Handle more complicated cases of registers |
| dying in insns. |
| (unlink_notes): Work from back-to-front instead of front-to-back. |
| (new_sometimes_live): Fix code that looks for an element already in |
| the table. |
| (schedule_block): New variable TAIL_PRIORITY used to help determine |
| max IPC of scheduled code. Also, for now we analyze (schedule) all |
| blocks, even ones which won't benfit from scheduling. This is |
| necessary to keep register live info correct, but has the |
| disadvantage of screwing *all* debug info, not just for the blocks |
| that were scheduled. |
| (update_links): Fix complicated code that was to be a simple |
| head-cons to be a simple head-cons. |
| (schedule_insns): Update REG_LIVE_LENGTH and REG_N_CALLS_CROSSED |
| after scheduling. |
| |
| * sparc.md (cmpdf): Define an expand pattern for this. (Dropped by |
| mistake when converted from old-style to new-style condition codes). |
| |
| * out-sparc.c (singlemove_string): Catch case where `sethi' can be |
| used instead of `mov'. |
| |
| * gcc.texinfo (Optimize Options): Add documentation about the |
| `-finline' option (actually, the `-fno-inline' option). |
| |
| * out-sparc.c (output_block_move): Use `rtx_alloc' instead of |
| `gen_rtx' to cons a CONST_INT whose INTVAL we can change. |
| |
| * toplev.c (main): Recognize all -O strings (i.e. -O3, -O69), not |
| just -O and -O2. |
| |
| Mon Mar 18 22:30:21 1991 Richard Stallman (rms@mole.ai.mit.edu) |
| |
| * expr.c (expand_expr): For TRUTH_ANDIF_EXPR, don't use hard target |
| if not optimizing. |
| |
| * combine.c: Fix some comments; reorder the variable declarations. |
| |
| Mon Mar 18 12:07:03 1991 Matthew Self (mself@next.com) |
| |
| * tm-next.h (WORD_SWITCH_TAKES_ARG): Return number of args taken. |
| |
| * tm-next.h (CPLUSPLUS): Deleted (obsolete). |
| |
| * out-next.c (flag_no_mach_text_sections, handle_pragma): |
| Handle #pragma CC_NO_MACH_TEXT_SECTIONS. |
| |
| Mon Mar 18 12:12:13 1991 Richard Stallman (rms at goldman) |
| |
| * cplus-pt.c: Renamed from cplus-template.c. |
| * Makefile.in (cplus-pt.o): New target. |
| |
| * c-typeck.c (initializer_constant_valid_p): |
| Allow casts that change width only for explicit values. |
| * tree.c (really_constant_p): New function. |
| * expr.c (expand_expr): Handle MINUS_EXPR with EXPAND_SUM. |
| |
| * tm-m68k.h (FUNCTION_EXTRA_EPILOGUE): Don't normally define this. |
| * out-m68k.c (use_return_insn): Don't look at FUNCTION_EXTRA_EPILOGUE. |
| |
| * out-sparc.c (normal_comp_operator): Replace comparison_code_p. |
| |
| Sun Mar 17 22:53:25 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * m68k.md: Delete patterns now converted by combine to simpler |
| patterns or otherwise obsolete. Specifically: ZERO_EXTRACT from |
| an HImode object, setting cc0 to SUBREG or AND, umulhi3, umulsi3, |
| AND of a ZERO_EXTRACT, shifts of 24 and 16 from MEM, and patterns with |
| constants as first operand of comparison operator. |
| Remove COMPARE except as a SET_SRC. |
| |
| * alliant.md, tahoe.md, rs6000.md: Remove COMPARE except as a SET_SRC. |
| |
| * flags.h (flag_combine_regs): Deleted. |
| * toplev.c: Likewise. |
| * tm-a29k.h, tm-romp.h, tm-rs6000.h (OVERRIDE_OPTIONS): No longer |
| turn on flag_combine_regs. |
| |
| * tm-romp.h, tm-rs6000.h (SLOW_BYTE_ACCESS): Set to 1. |
| |
| * Makefile.in (combine.o): Include insn-codes.h and insn-attr.h. |
| |
| * combine.c: Major rework to support many more simplifications in |
| a more regular manner and support combining three insns into two. |
| The most significant changes are the following: |
| (subst): Remove simplifications involving ZERO_EXTRACT, SIGN_EXTRACT, |
| ZERO_EXTEND, SIGN_EXTEND, AND, and shifts. |
| Call new routines below; in the case of comparisons, handle call |
| find_next_use if we need to change the comparison code or the |
| particular MODE_CC mode required. |
| No need to ever change ASHIFT to MULT here. |
| (expand_compound_operation): New function to convert |
| {ZERO,SIGN}_{EXTRACT,EXTEND} into the appropriate pair of shifts. |
| (make_compound_operation): New function to make |
| {ZERO,SIGN}_{EXTRACT,EXTEND} operations from shifts and ANDs. |
| If we are on a machine (like a Vax) that has only arithmetic shifts, |
| convert logical to arithmetic shifts when it doesn't matter |
| which shift is used (simplify_shift_const canonicalizes to |
| logical shifts). |
| If inside an address, convert ASHIFT to MULT. |
| (significant_bits): New function to determine which bits of |
| a value are known to be zero. |
| (simplify_and_const_int): Use significant_bits. |
| Call expand_compound_operation when required. |
| Handle AND of an ASHIFTRT with a constant. |
| Don't make ZERO_{EXTEND,EXTRACT} here. |
| (simplify_shift_const): New function to simplify a shift of an |
| an object by a constant integer. |
| (gen_lowpart_for_combine): When applied to a comparison operator, |
| return comparison operator in requested mode. |
| (simplify_set_cc0_and): Deleted. |
| (try_combine): No longer call simplify_set_cc0_and. |
| (reversible_comparison_p): New function. |
| (simplify_comparison): New function. |
| |
| (combine_instructions): Allocate and initialize new vars |
| reg_last_set_{table_tick,label,invalid}. |
| (update_table_tick, record_value_for_reg): New functions. |
| (get_last_value_validate, get_last_value): New functions. |
| (record_dead_and_set_regs): Call record_value_for_reg. |
| |
| (find_split_point): New function to locate a place where a complex |
| pattern can be split into two insns. |
| (try_combine): If we are combining three insns and can't recognize the |
| new pattern, try to split it. |
| Call new functions below to update insn status. |
| Return insn at which to continue scan. |
| (adjacent_insns_p, add_links, remove_links): Deleted. |
| (add_incs, add_no_conflicts, remove_death, move_deaths_2): Deleted. |
| (move_deaths): Generalize to include movements in both directions. |
| Update reg_first_use when we make an earlier use. |
| (distribute_notes, distribute_links): New functions. |
| (combine_instructions): No longer need check for LOG_LINKS |
| pointing at a NOTE. |
| Rescan from location indicated by try_combine, if any, when |
| combining three insns. |
| Update reg_first_use if we moved a use to a later insn. |
| |
| (try_distrib): Deleted. |
| (apply_distributive_law): New function, contains code from old |
| try_distrib. |
| (subst): Call apply_distributive_law for applicable operations. |
| Try to apply associative law. |
| (combine_instructions): No longer call try_distrib. |
| (dump_combine_stats, dump_combine_total_stats, combine_instructions): |
| No longer count distributer statistics. |
| |
| (can_combine_p): New function to see if I2 or I1 is combinable. |
| Be more precise about when we can combine insns involving cc0. |
| Eliminate -fcombine-regs; always do it. |
| (try_combine): |
| Call can_combine_p to validate I2 and I1. |
| If -fexpensive-optimizations, try to simplify I1 or I2. |
| Handle (set (foo) (const_int 0)) followed by a STRICT_LOW_PART |
| assignment to FOO as a ZERO_EXTEND. |
| (subst): Quit very early if X is a root node (like PC0). |
| Remove most canonicalizations done in first switch statement; now |
| done elsewhere. |
| Call simplify_{unary,binary,ternary}_operation. |
| Add cases involving logical and arithmetic operations applied |
| to comparison operators or values with only one significant bit. |
| Add more cases involving ABS since comparisons returning values |
| can be done with ABS. |
| Avoid generating (const (const ...) ...). |
| Convert (xmult (x_extend ...) ...) to a widening multiply. |
| |
| (gen_rtx_combine): New function to search for an operation in |
| undobuf. Many callers to gen_rtx changed to call this function. |
| (copy_substitutions): Only copy a substitution if it was placed into |
| more than one location. |
| |
| Sun Mar 17 17:26:09 1991 Richard Stallman (rms@mole.ai.mit.edu) |
| |
| * c-common.c (shorten_compare): Warn for (unsigned char) == -1. |
| |
| * final.c (final_scan_insn): Set debug_insn before first output. |
| (output_asm_insn): Clear it here. |
| |
| * expr.c (do_jump): Don't try to split non-integers. |
| |
| * fixincludes (dnetdb.h): Fix missing semi in nodeent. |
| (rusers.h): Code to fix this file was duplicated. |
| |
| * toplev.c (decl_printable_name): Now given an extra arg. |
| (decl_name): Accept that arg. |
| (announce_function, report_error_function): Pass that arg. |
| (error_with_decl, warning_with_decl): Likewise. |
| |
| * dbxout.c (getwd) [USG]: Define as macro. |
| |
| * c-decl.c (init_decl_processing): Indicate byte alignment for void. |
| |
| * expr.c (do_jump_by_parts_*): Compute nwords from compare arg. |
| Pass 0 as size and alignment to compare_from_rtx. |
| (do_jump_by_parts_greater): Compare high word first. |
| Handle unsigned compares properly. |
| Fix logic for dropping through versus failing. |
| |
| * expr.c (expand_builtin): Change cmpstrsi4 to cmpstrsi as in optabs.c. |
| |
| * c-common.c (truthvalue_conversion): Handle ptr vs int in MINUS_EXPR. |
| |
| Sun Mar 17 15:43:48 1991 Matthew Self (mself@next.com) |
| |
| Allow multiple return points in some framless functions (2/2/91): |
| |
| * m68k.md (return): New insn pattern for rts (and rtd). |
| |
| * tm-m68k.h (FUNCTION_PROLOGUE, FUNCTION_EPILOGUE, |
| USE_RETURN_INSN): Call new functions to avoid giant macros |
| which are hard to edit. |
| |
| * out-m68k.c (output_function_prologue, |
| output_function_epilogue): New functions. |
| |
| * out-m68k.c (use_return_insn): New function. Determines |
| whether the epilogue will consist of a single insn. Some |
| code was duplicated from output_function_epilogue. There |
| should be probably a new layout routine to do this common |
| work. Also #include "flags.h". |
| |
| *out-m68k.c (output_function_epilogue): Don't output |
| anything if the epilogue was output as RTL. We detect this |
| by the barrier insn which is always placed after a return |
| insn. This machine-independent test should probably be moved |
| back into final.c and removed from out-sparc.c and out-m88k.c. |
| |
| * out-next.c: Don't #include "flags.h". |
| |
| Sun Mar 17 00:07:20 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * genemit.c (gen_exp): Support constm1_rtx. |
| * genrecog.c (add_to_sequence): Likewise. |
| |
| Sat Mar 16 17:26:58 1991 Richard Stallman (rms@mole.ai.mit.edu) |
| |
| * c-lang.c (maybe_building_objc_message_expr): New dummy function. |
| * c-typeck.c (warn_for_assignment): Use it. |
| |
| * toplev.c (compile_file): Write out all static consts that are used. |
| |
| Sat Mar 16 14:08:12 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * integrate.c (subst_constants): Don't replace registers in USE or |
| CLOBBER expressions. |
| |
| * genattrtab.c (main): Properly set up a default DEFINE_ASM_ATTRIBUTES. |
| |
| * cse.c (cse_insn): Correctly check for a hash table element equal to |
| the destination of a SET. |
| |
| Fri Mar 15 16:55:32 1991 Ron Guilmette (rfg at pepper.ncd.com) |
| |
| * Makefile.in (OBJS): Added dwarfout.o to list of things to be |
| built. |
| |
| * Makefile.in (dwarfout.o): Added this rule. |
| |
| * dwarfout.c (FT_*_long_long): Added default definitions for all of |
| these extended fundamental type codes to cater to plain vanilla |
| <dwarf.h> file which do not define codes for these fundamental types. |
| |
| * dwarfout.c (TREE_UID): Added a local definition of this macro |
| because gcc v2 no longer provides a definition for it and because |
| dwarfout.c needs some way of getting a unique numeric code for each |
| type. |
| |
| * dwarfout.c (CLASSTYPE_*): Added some local default definitions |
| for these macros in order to get around the fact that they are |
| currently defined only in cplus-tree.h (and rms wants dwarfout.c |
| to be language independent). |
| |
| * dwarfout.c (BITFIELD_OFFSET_*): Added some local macros to help |
| compute various quantities relating to bitfield offsets. |
| |
| * dwarfout.c (location_attribute): Changed code which outputs location |
| attributes for bitfield so that it uses gcc2 macros. |
| |
| * dwarfout.c (byte_size_attribute): Changed code which outputs the |
| byte_size attribute so that it no longer uses the obsolete |
| DECL_SIZE_UNIT macro (from gcc1). |
| |
| * dwarfout.c: Replaced all uses of the obsolete macro TREE_PACKED |
| to uses of the new gcc2 macro DECL_BIT_FIELD. |
| |
| * dwarfout.c (deriv_list_attribute): Fixed typo "decl" => "type". |
| |
| * dwarfout.c (output_dies_for_type): Replaced bogus reference to the |
| non-existant routine "output_member_function_type_die" with a proper |
| reference to the routine "output_subroutine_type_die". |
| |
| * dwarfout.c (output_symbols_for_block): Fixed calling error which |
| was introduced by rms. |
| |
| * dwarfout.c: Replaced all uses of the obsolete macro STMT_SUBBLOCKS |
| with uses of the new gcc2 macro BLOCK_SUBBLOCKS. |
| |
| * dwarfout.c (output_symbol): Removed reference to TAG_DECL. The |
| use of TAG_DECLs was an early idea which didn't work out. |
| |
| * dwarfout.c: (dwarfout_init): Changed name from dwarfout_initialize |
| because rms failed to do so when he changed the name in the call. |
| |
| Fri Mar 15 17:22:14 1991 Richard Stallman (rms@mole.ai.mit.edu) |
| |
| * c-decl.c (pushdecl): Add `%s' to some error messages. |
| |
| * sparc.md: Add extra assembler alternative in last change. |
| |
| * cse.c (simplify_unary_operation, simplify_binary_operation): |
| Remove error checks that rejected SFmode. |
| |
| * expr.c (get_pointer_alignment): Don't lose on casts from integer |
| to pointer. |
| |
| Fri Mar 15 07:57:19 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * c-decl.c (pushdecl): Fix typo in previous change. |
| |
| * cse.c (simplify_{unary,binary}_operation): Fix usage of |
| REAL_VALUE_FROM_CONST_DOUBLE in recent change. |
| |
| Thu Mar 14 18:56:53 1991 Richard Stallman (rms@mole.ai.mit.edu) |
| |
| * c-decl.c (pushdecl): Warn if mismatch with implicit decl. |
| |
| * final.c (final_start_function): Handle NON_SAVING_SETJMP. |
| Include hard-reg-set.h. |
| * function.c (setjmp_protect, setjmp_protect_args): Likewise. |
| (expand_function_end): Call those if NON_SAVING_SETJMP. |
| |
| Thu Mar 14 14:40:45 1991 James Wilson (wilson at cygnus.com) |
| |
| * reload1.c (order_regs_for_reload): When REG_ALLOC_ORDER is defined, |
| use that definition only to order regs, do not try to put call |
| used regs first. This eliminates the benefits of defining the macro |
| in the first place. |
| |
| * real.h: New macros for real arithmetic, REAL_VALUE_FIX_TRUNCATE, |
| REAL_VALUE_UNSIGNED_FIX_TRUNCATE, REAL_VALUE_FIX, |
| REAL_VALUE_UNSIGNED_FIX. |
| |
| * cse.c (simplify_unary_operation): Added code to simplify floating |
| point rtx. Now simplifies UNSIGNED_FLOAT, ABS, FLOAT_TRUNCATE, |
| FLOAT_EXTEND, FIX, and UNSIGNED_FIX. Add aborts to default case |
| of switches. |
| (simplify_binary_operation): Added code to simplify floating point |
| rtx. Now simplifies PLUS, MINUS, MULT, and DIV. Add aborts to |
| default case of switches. |
| (*): Always use REAL_VALUE_TYPE and REAL_VALUE_FROM_CONST_DOUBLE |
| when extracting a floating point number from a CONST_DOUBLE. |
| |
| Thu Mar 14 14:40:45 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * expr.c (get_pointer_alignment): Update ALIGN for NOP_EXPR. |
| |
| * c-decl.c (builtin_function): New arg LIBRARY_NAME. |
| (initialize_decl_processing): Pass that argument. |
| |
| * c-decl.c (grokdeclarator): Handle C_TYPE_FIELDS_VOLATILE. |
| (finish_struct): Likewise. |
| * c-tree.h (C_TYPE_FIELDS_VOLATILE): Define it. |
| |
| * Makefile.in (gnulib1, gnulib2.portable): Test $$? after compilation. |
| |
| * c-typeck.c (check_format): Discard multiple NOP_EXPR levels. |
| |
| * objc-actions.c (build_message_expr, build_selector_expr, |
| build_encode_expr, get_class_ivars, start_class): Finding |
| Objective-C code in c source files is now a fatal error. |
| (They should recompile with -lang-objc.) |
| |
| * objc-actions.c (gen_method_decl): Don't crash for syntax |
| error in method declaration: -bar: x, y |
| (encode_array): Treat an undimensioned array the same as a pointer. |
| |
| Thu Mar 14 07:39:30 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reorg.c (try_merge_delay_insns): Previous fix had effect of |
| disabling this function. Rework to take into account things |
| needed, instead of set. This is still somewhat of a kludge. |
| |
| * recog.c (apply_change_group): An insn consisting of just a USE |
| or CLOBBER is always valid, but recog_memoized returns a -1 for it. |
| |
| * genattrtab.c: Count all definitions as well as counting insns; use |
| definition # in error message. |
| Most functions that accepted insn_code now accept insn_index as well |
| and similarly for structures containing insn_code. |
| |
| * reorg.c (try_merge_delay_insns): If not an annulling branch, take |
| into account things set in the delay slot. This prevents merging |
| two increments into one. |
| |
| * reorg.c (dbr_schedule): Fix typo in printing statistics. |
| |
| Thu Mar 14 02:11:56 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * genemit.c, genoutput.c, genrecog.c: Count all definitions |
| as well as counting insns; use # of definition in error messages. |
| |
| * toplev.c (pipe_closed, float_signal): Give it an explicit arg. |
| * cplus-decl.c (sigsegv): Likewise. |
| * cccp.c (pipe_closed): Likewise. |
| |
| * cccp.c: Delete trigraph from comment. |
| |
| * Makefile.in (realclean): Delete objc parser files. |
| |
| * assert.h (__assert for __GNUC__): Don't return value of abort. |
| |
| Wed Mar 13 16:12:54 1991 Richard Stallman (rms at churchy.ai.mit.edu) |
| |
| * expr.c (do_jump_by_parts_greater): Don't lose if labels are 0. |
| |
| * cplus-edsel.c: New name for cplus-cadillac.c. |
| * Makefile.in (cplus-edsel.o): Fix the compilation rule. |
| |
| Wed Mar 13 06:47:53 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reorg.c (mark_set_resources): Any registers mentioned in REG_INC |
| notes are set by an INSN. |
| |
| * flags.h (flag_expensive_optimizations): Add new flag. |
| * toplev.c: Support -fexpensive-optimizations and turn on for -O2. |
| * stmt.c (preserve_subexpressions_p): Use flag_expensive_optimizations |
| instead of testing for -O2 explicitly. |
| |
| * expr.h (operand_subword): Add missing declaration. |
| |
| * reload1.c (eliminate_regs): Handle INSN_LIST (found in REG_NOTES). |
| |
| * tm-i386.h (RETURN_POPS_ARGS): Don't call aggregate_type_p with |
| IDENTIFIER_NODE. |
| |
| Wed Mar 13 00:00:29 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * optabs.c (expand_binop, expand_unop): If wordwise, make target non0. |
| |
| Tue Mar 12 15:24:09 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * fixincludes: Quote the # in an echo. |
| * fixincludes: Fix typos handling size_t and ptrdiff_t. |
| * fixincludes (sys/file.h): Fix incorrect conditional in Ultrix. |
| |
| * c-typeck.c (initializer_constant_valid_p): Allow NON_LVALUE_EXPR. |
| Return a tree that indicates the relocation. |
| All callers changed. |
| |
| * jump.c (jump_optimize): Rerecognize jump insn after inverting it. |
| |
| * expr.c (do_jump): |
| Use can_compare_p on the operand mode, not the comparison's mode. |
| |
| * reload.c (subst_reloads): Fix dumb error in last change. |
| |
| * expr.c (do_jump_by_parts_equality*): Fix logic errors. |
| |
| Mon Mar 11 14:27:40 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * reload.c (subst_reloads): Don't make subregs, just new regs. |
| |
| * expr.c (do_jump_by_parts_equality, do_jump_by_parts_greater): |
| (do_jump_for_compare, do_jump_by_parts_equality_rtx): New functions. |
| (do_jump): Use them to handle wide values. |
| * optabs.c (can_compare_p): New function. |
| |
| * reload1.c (emit_reload_insns): Don't make subreg around RELOADREG; |
| just make a new REG. |
| |
| * cse.c, varasm.c: Fix typos. |
| |
| * sparc.md (move SI to reg_or_nonsymb_mem_operand): |
| Separate third alternative into two alternatives. |
| * tm-sparc.h (PREFERRED_RELOAD_CLASS): Return CLASS as given. |
| |
| * optabs.c (operand_subword): Fix typo. |
| |
| * longlong.h (__umulsidi3): Return .ll field. |
| |
| Mon Mar 11 11:43:21 1991 Jeffrey A. Law (law at mole.ai.mit.edu) |
| |
| * make-hp9k2bsd: New file. |
| * configure (hp9k200-bsd): Use it. |
| |
| Mon Mar 11 07:08:12 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-lex.c (check_newline): Clear TREE_INT_CST_HIGH once instead |
| of clearing TREE_INT_CST_LOW twice. |
| |
| Mon Mar 11 06:51:52 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * flow.c (mark_used_regs): If we are going to use a later |
| register to auto-increment, make sure it really is a REG. |
| In the case above, count any calls crossed by the new register. |
| |
| * global-alloc.c (global_conflicts): Mark registers modified by |
| virtue of a REG_INC note as modified in the insn to make conflicts. |
| (mark_reg_store): Accept SETTER value of 0. |
| |
| Sun Mar 10 16:56:25 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * optabs.c (operand_subword): New function to get one word of operand. |
| (expand_binop, expand_unop): Use it for word at a time case. |
| |
| * configure (a29-bsd*): Renamed from a29-sysv*. |
| |
| * expr.c (emit_library_call): Handle GNULIB_NEEDS_DOUBLE. |
| * tm-i860.h (GNULIB_NEEDS_DOUBLE): Define it. |
| |
| * tm-harris.h (ASM_FILE_START): Output a .file. |
| |
| * reload1.c (constraint_accepts_reg_p): Understand reg classes. |
| |
| Sun Mar 10 06:58:20 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expr.c (move_by_pieces, move_by_pieces_ninsns, emit_push_insn): |
| If SLOW_UNALIGNED_ACCESS is defined, respect alignment even if |
| STRICT_ALIGNMENT is not defined. |
| * tm-a29k.h (SLOW_UNALIGNED_ACCESS): Define this. |
| |
| Sun Mar 10 02:57:40 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * cccp.c (handle_directive): If pass_thru and -C, print the |
| input before removing comments from it. |
| |
| Sat Mar 9 21:18:48 1991 Torbjorn Granlund (tege at musta.nada.kth.se) |
| |
| * gnulib2.c (div_qrnnd, __umulsidi3, lowpart, highpart, B): Move |
| to longlong.h. |
| (udiv_qrnnd): New name of div_qrnnd. Rewrite to work correctly. |
| (file header): Remove obsolete comment about internal format. |
| (bits): Remove this function. count_leading_zeros in longlong.h |
| is similar. |
| (__udivdi3): Use count_leading_zeros instead of bits. |
| (__udivdi3): Use umul_ppmm instead of __umulsidi3, as this makes |
| better code. |
| |
| Sat Mar 9 18:02:47 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * jump.c (jump_optimize): Avoid looking at PATTERN of NOTE |
| or CODE_LABEL. |
| |
| * reload1.c (reg_is_output_reload, count_for_*groups): Use |
| HARD_REG_SET instead of array to avoid bzero calls. |
| (reload_reg_used*): Likewise. |
| |
| * emit-rtl.c (gen_rtx, init_emit_once): Pre-compute CONST_INTs |
| from -64 to 64 to save space. |
| |
| Sat Mar 9 14:28:37 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * reload1.c (choose_reload_regs): Fix typo in last change. |
| |
| Sat Mar 9 01:03:01 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-decl.c (pushtag): Don't call `pushdecl' for nested type if |
| the type is already defined. |
| |
| Fri Mar 8 17:24:20 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * ns32k.md, vax.md (right shift patterns): When generating a right |
| shift, use xSHIFTRT but use (neg x) as the shift count to |
| more accurately represent what is supported by the machine. |
| |
| * expmed.c (emit_store_flag): Can't narrow result of scc insn before |
| normalizing. |
| |
| Fri Mar 8 12:56:41 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-class.c (pushclass): Set CURRENT_FUNCTION_DECL to |
| appropriate value so that pushtag does the right thing for tags |
| pushed into scope. |
| |
| Fri Mar 8 02:47:53 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * gcc.c (delete_temp_files): Delete only ordinary files. |
| |
| * tree.c, cplus-tree.c (TYPE_HASH): 777777 was supposed to be octal. |
| |
| * reload1.c (choose_reload_regs): Properly ensure EQUIV |
| is free and of the desired class. |
| When a reload may be a group, mark all its regs in use. |
| |
| * reload.c (push_reload): Don't call reg_overlap_mentioned_p |
| unless IN is a REG or MEM. |
| |
| * c-common.c, cplus-search.c, cplus-class.c (NULL): |
| Undef before defining. |
| |
| * sdbout.c (sdbout_one_type): Don't temporarily clear KNOWN_TYPE_TAG. |
| |
| Thu Mar 7 10:53:32 1991 Tom Wood (wood at dg-rtp.dg.com |
| |
| * toplev.c (main): Add -dp: annotate the assembly with a comment |
| describing the pattern and alternative used. Also, make -dm work |
| for USG systems. |
| * genoutput.c (output_epilogue): Output the array `insn_name'. |
| * final.c (debug_insn, final_scan_insn): Record the value of the |
| last insn processed by final_scan_insn. |
| (output_asm_insn): Annotate the assembly output. |
| (ASM_COMMENT_START): Provide a default value. |
| * tm-att386.h, tm-bsd386.h, tm-sun386.h (ASM_COMMENT_START): |
| Specify "/". |
| |
| Thu Mar 7 06:15:04 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-class.c (propagate_basetype_offsets): Check ASSOC_TYPE in |
| addition to return value from assoc value before aborting. ??? |
| should figure out why assocs are not shared. |
| |
| Wed Mar 6 16:29:37 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-decl.c (NULL): Undef before defining. |
| |
| * cccp.c (do_include): Allocate file name permanently. |
| |
| Wed Mar 6 09:06:39 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * m88k.md (and/ashift): Added for the new combine.c (ashift/and |
| works with the previous version). |
| (bcnd insns): Use bcnd to test for sign and zero. |
| (muldf3, divdf3): Use new method to deal with a power of two. |
| (andsi3, iorsi3, xorsi3): Split into two insns for some constants. |
| (call, call_value): Deal properly with a CONST_INT address. |
| * out-m88k.c (call_address_operand): Don't allow CONST_INT. |
| (uses_arg_area_p): New function for -moptimize-arg-area. |
| * tm-m88k.h (TARGET_SWITCHES): Delete -mpic in favor of -fpic. |
| Add -moptimize-arg-area and -mno-optimize-arg-area. |
| |
| Wed Mar 6 00:07:09 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * real.h (REAL_VALUE_FROM_CONST_DOUBLE): Takes input and output args. |
| * integrate.c (copy_for_inline, copy_rtx_and_substitute): |
| (restore_constants): Calls changed. |
| |
| Tue Mar 5 23:06:36 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * stmt.c (fixup_gotos): Handle jumping to end of rtl. |
| |
| * c-decl.c (store_parm_decls): If -traditional, |
| allow unsigned int in prototype in place of int. |
| |
| * cplus-cadillac.c: Delete all but the stubs. |
| |
| Tue Mar 5 16:59:18 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * jump.c (jump_optimize): Handle case of only NOTE insns after |
| NOTE_INSN_LOOP_BEG. |
| (duplicate_loop_exit_test): Return 0 when we hit a block |
| start or end, rather than quitting loop and getting confused. |
| |
| * integrate.c (subst_constants): Correctly move constants to |
| second operand of commutative operations. |
| |
| * jump.c (comparison_code_p): Deleted. |
| * combine.c (subst): Use GET_RTX_CLASS instead of comparison_code_p. |
| * cse.c (find_comparison_args): Likewise. |
| * recog.c (comparison_operator): Likewise. |
| * loop.c (get_condition): Likewise. |
| |
| Tue Mar 5 14:21:57 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * cse.c (fold_rtx): When checking for constant pool addresses, |
| handle addresses constructed from LO_SUM. |
| |
| * recog.c (constrain_operands): If before reload, `m' and `o' |
| accept all that could be reloaded to fit those constraints. |
| |
| * reload1.c (gen_input_reload): Return the first insn emitted by |
| this function, instead of the last insn emitted. |
| |
| * stmt.c (expand_end_loop): When move exit test to loop bottom, |
| also move a preceeding NOTE_INSN_LOOP_CONT note if it exists. |
| |
| * gcc.c (process_command): Check for running out of args after option. |
| |
| * out-mips.c, out-romp.c: Test BYTES_BIG_ENDIAN with #if. |
| * tm-i860.h (*_BIG_ENDIAN): Define as 0. |
| * tm-mips-news.h (BYTES_BIG_ENDIAN, WORDS_BIG_ENDIAN): Deleted. |
| (DECSTATION): Deleted. |
| |
| * tm-mips.h: Test WORDS_BIG_ENDIAN with #if. |
| |
| * tm-mips.h, tm-sparc.h, tm-spur.h (CONST_DOUBLE_OK_FOR_LETTER_P): |
| Use CONST_DOUBLE_LOW and CONST_DOUBLE_HIGH. |
| |
| * real.h: dconst0, dconst1, dconstm1 are declared twice. |
| Eliminate the second redundant declaration. |
| |
| * cse.c (FIXED_REGNO_P): Exclude OVERLAPPING_REGNO_P registers. |
| |
| * cccp.c (path_include): Handle empty names in path. |
| |
| * final.c: Use gvarargs.h, not varargs.h |
| |
| * configure (i860, i860-bsd): Handle +gas. |
| * tm-i860g.h, tm-i860bsdg.h: New files. |
| |
| Mon Mar 4 22:41:36 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * cse.c (simplify_unary_operation): When making a real const, use MODE. |
| |
| Mon Mar 4 21:35:47 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cse.c (cse_end_of_basic_block): Correctly handle case where |
| we find a "new" branch to follow. |
| (cse_end_of_basic_block, cse_main, cse_basic_block): PATH_SIZE |
| is now actual size, not size - 1. |
| |
| Mon Mar 4 06:44:27 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-decl.c (poplevel): Change test for whether to clobber the |
| DECL_CONTEXT of local variables. Now we won't clobber context for |
| any nested types. |
| |
| Mon Mar 4 00:39:11 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * jump.c (jump_optimize): When deleting x=y after y=x, |
| don't delete more than one death note, and don't delete any |
| unless we really do delete x=y. |
| |
| * cccp.c (main): Support -lang-objc++. |
| Eliminate compilation parameter CPLUSPLUS. |
| |
| * cccp.c (main): Handle leading or trailing space in `predefs'. |
| |
| * fixincludes: Fix typos handling size_t and ptrdiff_t. |
| |
| Sun Mar 3 16:41:24 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * cccp.c (main): Handle multiple spaces, and tabs, in `predefs'. |
| * gcc.c (do_spec_1): Allow extra whitespace in CPP_PREDEFINES. |
| Also transform -Dfoo=bar into -D__foo__=bar correctly. |
| |
| * varasm.c (assemble_zeros): Use ASM_BYTE if defined. |
| |
| * reload1.c (reload): Only special-case a spill reg alone in a class |
| if there is non-group need for that class. Be careful not to count |
| a reg in the usual place if it was counted in the special case. |
| |
| * reload1.c (order_regs_for_reload): Make fixed regs and |
| eliminable regs twice as bad as explicitly mentioned regs. |
| |
| * reload1.c (choose_reload_regs): Fix typos in last change. |
| |
| * c-decl.c (init_decl_processing): |
| Return type of memcpy varies if -traditional. |
| (ptr_ftype_ptr_cptr_sizet): Global var deleted. |
| |
| * reload1.c (emit_reload_insns): When updating reg_reloaded_contents, |
| first always clear, then maybe store nonzero value. |
| |
| Sun Mar 3 16:12:17 1991 Ken Raeburn (raeburn at watch.com) |
| |
| * cplus-template.c (mangle_class_name_for_template): Add two |
| leading underscores, to avoid conflicts with programmer's names. |
| |
| * cplus-tree.h (struct lang_identifier): New field `template' |
| points to template info from which this identifier was |
| constructed. |
| |
| * cplus-template.c (current_template_expansion, |
| current_template_name): Variables deleted. |
| |
| * cplus-template.c (lookup_template_class): Top half of old |
| instantiate_template; returns the id_node. |
| (instantiate_template): Takes the id_node as argument now. |
| * cplus-parse.y (template rules): Use separate rule for checking |
| whether expansion is required. For base classes, always try it; |
| else do it only if `{' is not next token. |
| (template_type_name): New nonterminal for template class name |
| without expansion. |
| (template_type): Includes expansion, if needed. |
| |
| * cplus-input.c (input_from_saved_text): Deleted. |
| * cplus-template.c (instantiate_template): Call feed_input directly. |
| |
| * cplus-parse.y (base_class_visibility_list): Now type <itype>, |
| cast to tree in base_class action. |
| |
| Sun Mar 3 07:46:55 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expr.c (do_store_flag): Consider A & single-bit as cheap. |
| |
| * fold-const.c (operand_equal_p): If ARG0 and ARG1 are the same |
| SAVE_EXPR, they are equal. |
| |
| * function.c (fixup_var_refs_1): Move mispositioned code in |
| (set (zero_extract ...) ...) case; fix incorrect indentation. |
| |
| Sun Mar 3 01:11:46 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * cccp.c (include_defaults, cplusplus_include_defaults): |
| Use STANDARD_INCLUDE_DIR. |
| (STANDARD_INCLUDE_DIR): Define by default as /use/include. |
| * tm-mips.h (STANDARD_INCLUDE_DIR): Define, if MIPS_BSD43. |
| (CPP_SPEC): Don't do -I to handle -ZSYSV, -ZBSD43. |
| |
| Sat Mar 2 17:20:57 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expr.c (expand_expr, case COND_EXPR): Remove unneeded calls to |
| safe_from_p in A ? A : FOO cases. |
| |
| Sat Mar 2 16:14:24 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * reload1.c (choose_reload_regs): Support subreg as reload_override_in. |
| Likewise reload_reg_rtx. Just don't use REGNO on them. |
| (emit_reload_insns): Handle subreg as OLDEQUIV. |
| |
| * reload1.c (delete_output_reload): Pass the output reload insn, |
| not a spill reg index. Call in emit_reload_insns changed. |
| (emit_reload_insns): Don't actually update spill_reg_store |
| till after all reload insns have been made. |
| |
| * reload.c (push_reload): If existing reload has a reload reg, |
| make sure it fits the class of this reload. |
| |
| * stmt.c (fixup_gotos): Fix typo in last change. |
| |
| * reload1.c (choose_reload_regs): Don't use equiv reg |
| that is clobbered in this insn. |
| |
| Sat Mar 2 12:19:19 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-dem.c (optable): Add op for `operator,'. |
| |
| * toplev.c (main): Clear WARN_INLINE if FLAG_NO_INLINE is nonzero. |
| |
| * cplus-typeck.c (c_expand_return): Perform conversion to reference |
| in time that we can warn about the return of more non-lvalues. |
| Also, fix what appeared to be bugs in the code dealing with |
| WHATS_RETURNED. |
| |
| Sat Mar 2 00:11:18 1991 Ken Raeburn (raeburn at watch.com) |
| |
| * cplus-parse.y (base_class): Base class may be a template class. |
| Split off non-visibility portion into base_class.1. |
| |
| * cplus-parse.y: Replaced PUBLIC, PRIVATE, PROTECTED with a single |
| terminal VISSPEC, with <itype> value, to simplify parser slightly. |
| * cplus-parse.h (enum rid): Added values for VISSPEC terminal. |
| * cplus-lex.c (is_reserved_word): Changed token types to VISSPEC, |
| rid values as appropriate. |
| (yylex): For VISSPEC, set itype value rather than ttype. |
| |
| Fri Mar 1 21:50:23 1991 Ken Raeburn (raeburn at watch.com) |
| |
| * cplus-parse.y (.set_base_init): Discarded `preserve' code, which |
| was doing nothing. |
| |
| Fri Mar 1 19:01:25 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reorg.c (redundant_insn_p): Rename second arg to TARGET. |
| Handle the case where TARGET is a SEQUENCE. |
| (mark_target_live_regs): Don't get confused by registers conditionally |
| set in a JUMP_INSN when looking for regs set before used. |
| |
| Thu Feb 28 17:25:59 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * loop.c (check_dbra_loop): Replace code that thinks it knows |
| exactly what the RTL looks like (and gets it wrong) with call |
| to get_condition_for_loop. |
| |
| Thu Feb 28 16:35:21 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-typeck.c (build_compound_expr): Convert array to pointer. |
| |
| Wed Feb 27 15:46:54 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * gnulib1.c (FLOAT_ARG_TYPE, FLOATIFY): New macros. |
| (__*sf*): Use them for `float' args. |
| |
| * stmt.c (expand_end_case): |
| Test value of HAVE_casesi and HAVE_tablejump at runtime. |
| |
| * stmt.c (fixup_gotos): Check that jump into bindings |
| really comes from before the start of the bindings. |
| Use TREE_REGDECL to indicate error message printed. |
| |
| Wed Feb 27 15:01:51 1991 Ken Raeburn (raeburn at watch.com) |
| |
| * cplus-template.c (end_template_decl): Store correct name in new |
| decl. Use pushdecl, not pushtag. |
| (instantiate_template): Use identifier's global value, not its |
| type. Pass back both template and new class in token value. |
| * cplus-lex.c (identifier_type): Templates now have type |
| TEMPLATE_DECL, not TYPE_DECL wrapped around a TEMPLATE_DECL. |
| |
| Wed Feb 27 06:27:45 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * loop.c (replace_regs): Don't make nested SUBREGs. |
| |
| * reload.c (push_reload): SUBREG_LOC applies only to INLOC, not OUTLOC. |
| |
| * cse.c (simplify_binary_operation): Simplify A&A, A|A, and A^A. |
| |
| * reload.c (find_reloads_address_1): Correctly handle (post_inc (mem)). |
| |
| Tue Feb 26 21:49:15 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * expmed.c (store_bit_field, extract_bit_field): Calls to |
| get_best_mode were passing alignment in bytes rather than |
| alignment in bits. |
| |
| * flags.h (flag_pedantic_errors): Declare it. |
| |
| * c-tree.h (C_TYPEDEF_EXPLICITLY_SIGNED): New flag. |
| * c-decl.c (grokdeclarator): Record that flag in new typedefs. |
| Check it when determining signedness of bitfields. |
| |
| * expr.c (expand_expr): In A ? A : B, make output safe from A and B. |
| |
| * reload.c (find_reloads_address, find_reloads_address_1): |
| Reload any reg that appears in a clobber in the same insn. |
| (regno_clobbered_p): New function. |
| |
| Tue Feb 26 21:41:43 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * expr.c (expand_expr): Add missing arg to exapnd_exit_loop in |
| EXIT_EXPR case. |
| |
| Tue Feb 26 14:35:47 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-decl.c (grokdeclarator): Check pedantic error last. |
| |
| * tm-i386.h (STRUCT_VALUE, STRUCT_VALUE_INCOMING): Value is 0. |
| (RETURN_POPS_ARGS): Pop the structure return pointer here. |
| * out-i386.c (function_epilogue): |
| current_function_pops_args says how many args to pop. |
| |
| * tm-i386.h (CC_Z_IN_NOT_C): New cc flag. |
| * i386.md (je and jne patterns): Handle this flag. |
| (pattern using bt insns): Set the flag. |
| Output test insn instead if bit number is constant. |
| (insv): Changed constraint. |
| |
| * tm-i386.h (enum reg_class): Define ABCI_REGS. |
| (REG_CLASS_NAMES, REG_CLASS_CONTENTS): Support ABCI_REGS. |
| Fix the contents for ABC_REGS. |
| (REG_CLASS_FROM_LETTER): Define `x' for ABCI_REGS. |
| * i386.md (divsi3, udivsi3): Use `xm' for operand 2 constraint. |
| (divhi3, udivhi3, divmod*, udivmod*): Likewise. |
| |
| * cccp.c (pedwarn): Declare as void. |
| |
| Tue Feb 26 06:41:34 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * tree.h (IDENTIFIER_VIRTUAL_P): New macro for IDENTIFIER_NODE. |
| Nonzero means that this identifier is used by a function declared |
| virtual. |
| * cplus-decl.c (grokfndecl): Set IDENTIFIER_VIRTUAL_P instead of |
| DECL_VIRTUAL_P. |
| * cplus-search.c (get_first_matching_virtual): Test |
| IDENTIFIER_VIRTUAL_P instead of DECL_VIRTUAL_P. |
| |
| * cplus-decl.c (pushtag): Handle classes which are nested in |
| function scope (as opposed to class scope). |
| (lookup_nested_type): Ditto. |
| * cplus-method.c (build_overload_nested_name): Ditto. |
| |
| * cplus-decl.c (grokdeclarator): Only globalize non-nested classes |
| declared in class scope (i.e., don't globalize in function scope). |
| |
| Tue Feb 26 06:11:37 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * a29k.md (storem): Fix typo in operand number. |
| |
| * expr.c (do_store_flag): Add missing cast required for some compilers. |
| |
| * tm-a29k.h (REG_CLASS_*, REGNO_REG_CLASS): Add new class Q_REGS |
| and constraint letter `q' for the Q register. Requested by tege. |
| |
| * tm-a29k.h (PRINT_OPERAND_ADDRESS): Allow short constant as address. |
| |
| Mon Feb 25 20:46:43 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * expr.c (expand_expr): In handling A : A ? FOO, use safe_from_p |
| against FOO. Fix many incorrect operand refs in A : FOO ? A. |
| |
| * sdbout.c (plain_type_1): Record type name only if using forward refs. |
| |
| * reload.c (find_reloads): Mark those RELOAD_OTHER reloads |
| that are used for output addresses, for choose_reload_regs. |
| |
| * integrate.c (copy_rtx_and_substitute): |
| Copy REG_USERVAR_P from original regs to new regs. |
| |
| * c-typeck.c (digest_init): Handle STRING_CST before same-type case. |
| |
| Mon Feb 25 13:31:51 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-decl.c (grokdeclarator): Handle the identification of |
| constructors declared in nested scope. |
| |
| Mon Feb 25 06:27:28 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reorg.c (next_insn_no_annul): New function. |
| (mark_set_resources, mark_target_live_regs): Don't count insns from |
| the target of a branch if the branch is annulling. |
| |
| * expmed.c (emit_store_flag): Get new register for target if |
| preserve_subexpressions_p returns nonzero. |
| Convert to desired mode, then normalize, instead of doing it |
| the other way around; this allows better combining. |
| |
| Sun Feb 24 20:07:02 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cse.c (find_comparison_args): Fix indentation and misplaced paren. |
| |
| * Makefile.in (install-headers): Remove extraneous parens from |
| uses of shelllibsubdir. |
| |
| Sun Feb 24 15:49:42 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * loop.c (check_dbra_loop): Win if loop biv is used only for counting. |
| |
| * cccp.c (struct definition): Record file and line. |
| (create_definition): Store that information. |
| (do_define): Identify location of previous definition. |
| (pedwarn_with_file_and_line): New function. |
| |
| Sat Feb 23 13:36:13 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-decl.c (grokdeclarator): Error for `signed void', etc. |
| Warning for `signed my_int', and only if pedantic. |
| |
| * toplev.c (warn_cast_align): New flag, with -W option. |
| * c-typeck.c (build_c_cast): Warn if target alignment increases. |
| |
| Sat Feb 23 10:22:03 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-type2.c (store_init_value): Global variables must be |
| specially initialized in PIC under SunOS. |
| |
| * cplus-dbxout.c (dbxout_tags): Test that the tag's value has not |
| been cleared before trying to use it as a type. This happens when a |
| class starts out looking like a nested class, but turns out to be a |
| reference to an implicitly defined global class. |
| |
| Sat Feb 23 06:16:44 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * jump.c (true_regnum): If given a pseudo not assigned a hard reg, |
| return the pseudo register number. |
| |
| * out-rs6000.c (update_cc): Remove CC_REVERSE and CC_NONNEG. |
| * rs6000.md (define_attr "cc"): Remove reverse. |
| (cmpsi): Only allow second arg to be a constant. |
| Remove some unneeded comparison patterns. |
| |
| * rs6000.md (misc logical patterns): Only add CLOBBER for MQ |
| when we really clobber it; we used to do so in more cases to |
| work around a since-fixed restriction in combine.c |
| |
| * rs6000.md (extend*): Use DEFINE_EXPAND instead of a pattern |
| that generates two insns. Remove (sign_extend (ashift ..) ...) |
| and similar patterns; no longer neeed. |
| |
| * rs6000.md (fma instruction): Add missing single-precision case. |
| |
| * out-rs6000.c (print_operand, case 's' and 'S'): Truncate to low-order |
| 5 bits. |
| |
| * out-rs6000.c (output_prolog, output_epilog): Correct code to handle |
| large stack frames; used 65535 instead of 32767 and had a typo. |
| |
| * tm-romp.h (CC_IN_NOT_TB): Deleted. |
| * out-romp.c (update_cc): No longer need CC_REVERSE, CC_NONNEG, or |
| CC_NOTTBIT. |
| (print_operand): Remove use of CC_IN_NOT_TB. |
| * romp.md (define_attr "cc"): Remove reverse,nonneg, and nottbit. |
| (mttbi): Remove redundant pattern. |
| (cmpsi): First arg can only be register_operand. |
| Remove some unneeded COMPARE patterns. |
| |
| * romp.md (movhi): Use zero-extend, not sign-extend load. |
| |
| * out-romp.c: (float_conversion): Allow CONST_INT as operand. |
| |
| * out-romp.c (first_reg_to_save): Ensure we save r14 if we use it. |
| |
| * a29k.md (divsf3): Fix typo in name; was divds3. |
| |
| * tm-a29k.h: Add new -mno-storem-bug and TARGET_NO_STOREM_BUG. |
| (TARGET_SWITCHES): -m29050 turns on -mno-storem-bug. |
| * a29k.md: (store_multiple_bug): New pattern to work around chip bug. |
| (store_multiple_no_bug): New name for original pattern. |
| (store_multiple): Choose depending on TARGET_NO_STOREM_BUG. |
| (storem patterns): Two cases, with and without bug. |
| |
| * a29k.md (extend*): Don't define single insn for sign_extend. |
| Instead, use DEFINE_EXPAND. Delete DEFINE_SPLITs for the old patterns. |
| |
| * a29k.md (jumpfdec pattern): Fix typo. |
| |
| * tm-a29k.h, tm-romp.h, tm-rs6000.h (CC1_SPEC): Remove optimization |
| selections. |
| (OPTIMIZATION_OPTIONS): Turn off insn scheduling by default until |
| it is fixed. |
| |
| * tm-a29k.h, tm-romp.h, tm-rs6000.h (SETUP_INCOMING_VARARGS): |
| Correctly handle the case of the special argument being other than |
| the first arg. |
| |
| * tm-a29k.h (GO_IF_LEGITIMATE_ADDRESS): A tiny constant (< 255) |
| is also a valid address. |
| |
| * tm-a29k.h, tm-romp.h, tm-rs6000.h (BYTE_LOADS_ZERO_EXTEND): Add to |
| support combine.c in development. |
| |
| * jump.c (jump_optimize, can_reverse_comparison_p, delete_jump): |
| Consistently allow NOTEs between the set and use of CC0. |
| * reorg.c (delete_scheduled_jump): Likewise. |
| |
| * expmed.c (emit_store_flag): Pass in UNSIGNEDP; can't derive it from |
| comparison code. |
| * expr.c (do_store_flag): Add UNSIGNEDP arg to emit_store_flag call. |
| * jump.c (jump_optimize): Likewise. |
| * optabs.c (expand_binop): Likewise. |
| |
| * local-alloc.c (requires_inout_p): New function. |
| (block_alloc): Use high-priority preferences if we have a hard |
| register used in an insn that requires the same register for |
| input as for the output. |
| (combine_regs): Rename argument COPY to MAY_SAVE_COPY. |
| |
| * cse.c (simplify_binary_operation, case MULT): Convert multiply |
| by power of two to shift. |
| (cse_insn): Don't share rtx obtained from the hash table; copy it. |
| |
| Sat Feb 23 00:27:26 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * rtlanal.c (dead_or_set_p): Don't check for REG_INC. |
| |
| * reload.c (push_reload): (subreg:m1 (reg:m2 ...) ...) with M1 wider |
| than M2 is also a paradoxical SUBREG. |
| |
| Fri Feb 22 14:43:44 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * reload1.c (possible_group_p): Add missing forward declaration. |
| |
| * reload1.c (eliminate_regs, case PLUS): Ensure we handle the |
| case of (plus reg1 reg2) where REG1 is eliminable and REG2 is |
| psuedo that didn't get a hard reg and has reg_equiv_constant nonzero. |
| (choose_reload_regs): If reload_needed_for_multiple, |
| the reload can't be input-only or output-only. |
| (emit_reload_regs): Avoid regno_dead_p. |
| * combine.c (regno_dead_p): Function deleted. |
| |
| * Makefile.in (maketest): Finish renaming config to configure. |
| |
| * gcc.c (lookup_compiler): Create a new entry to represent |
| the result of searching for an alias entry. |
| |
| * reload.c (combine_reloads): Swap args to reg_overlap_mentioned_p. |
| |
| Fri Feb 22 09:40:50 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-parse.y (base_class_list): Re-fix precedence so we can use MI. |
| |
| * cplus-except.c (init_exception_processing): Push exception ctors |
| and dtors into scope so they can be inlined. |
| |
| Fri Feb 22 08:03:47 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * genemit.c (output_init_mov_optab): New function. |
| (main): Have insn-emit.c include insn-codes.h. |
| Call output_init_mov_optab. |
| * optabs.c (gen_move_insn): Handle moving MODE_CC modes; we may have |
| to find a different mode to do this in. |
| (init_optabs): Try to initialize CCmode in mov_optab; if we have |
| EXTRA_CC_MODES, call init_mov_optab. |
| * Makefile.in (insn-emit.o): Now depends on insn-codes.h. |
| |
| * rtl.h (get_last_insn_anywhere): Add missing declaration. |
| |
| * stmt.c: Now includes hard-reg-set.h (for n_non_fixed_regs). |
| (preserve_subexpressions_p): Renamed from inside_loop. |
| Always return true if optimize >= 2; always return false if |
| optimize == 0. If optimize == 1, only return true if we aren't |
| very far into a loop instead of whenever we are in any loop. |
| * Makefile.in (stmt.o): Now includes hard-reg-set.h. |
| * expr.c (expand_expr): Use preserve_subexpressions_p instead of |
| inside_loop. |
| Only set TARGET to SUBTARGET if TARGET isn't a pseudo register. |
| (expand_expr, case REAL_CST): Don't call force_reg; now done in |
| expand_binop, if required. |
| * optabs.c (expand_binop, expand_twoval_binop, emit_cmp_insn): |
| If arg is expensive constant and preserve_subexpressions_p is true, |
| force it into a register. |
| * out-sparc.c (emit_move_sequence): Call preserve_subexpressions_p |
| instead of inside_loop. |
| |
| * reload1.c (eliminate_regs, case SUBREG): Correct test for paradoxical |
| SUBREG. |
| |
| * varasm.c (output_constant_pool): If entry refers to a deleted label, |
| write a zero instead of the undefined label. |
| |
| Fri Feb 22 02:49:24 1991 Ken Raeburn (raeburn at watch.com) |
| |
| * Reversed all changes dated 20 February. |
| * cplus-template.c (pending_template_expansion): New function; |
| given template name, returns class name of expansion in progress. |
| * cplus-parse.y (PTYPENAME -> typespec): Call it. |
| ('~' PTYPENAME -> notype_declarator): Ditto. |
| |
| Thu Feb 21 15:17:13 1991 Craig Burley (burley at geech.ai.mit.edu) |
| |
| * c-common.c (check_case_value): If value is NULL_TREE, return it |
| without any further checking. |
| |
| * stmt.c (pushcase_range): If value1 is NULL_TREE, substitute |
| minimum value for the type, if value2 is NULL_TREE, substitute |
| maximum value for the type, from then on assume both are not NULL_TREE. |
| These changes appear to provide minimal support for case ranges. |
| |
| * c-typeck.c (digest_init): For explicit array element initializer |
| case, change check against max value of domain so index may equal it. |
| For array element initialization, give next initializer a chance to |
| override the choice of next index before falling out of loop because |
| next index is out of range. For structure initialization, give next |
| initializer a similar chance before falling out of loop because no |
| more fields exist. |
| |
| * reload1.c (possible_group_p): Needed a forward decl (static). |
| |
| Thu Feb 21 14:37:01 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-decl.c (grokdeclarator): |
| Don't make bitfield type unsigned if comes from typedef. |
| |
| * reload1.c (reload): Don't require INITIAL_FRAME_POINTER_OFFSET |
| if cannot eliminate the frame pointer. |
| |
| * i860.md (cbranch, inverse_cbranch): Use eq to test cc0. |
| (negated branch patterns): New patterns. |
| |
| * tm-i860.h (INITIALIZE_TRAMPOLINE): Use size_int, not build_int. |
| |
| * reload1.c (reload): Save and restore notes around find_reloads. |
| |
| * tm-sun2os4.h (LINK_SPEC): New macro. |
| * tm-sun386i.h (LINK_SPEC): Undef before redefining. |
| |
| * cccp.c (do_include): Check for -2, not -1, as value of lookup_import. |
| |
| * c-parse.y (initlist): Fix typo. |
| |
| Mon Feb 18 02:50:38 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-decl.c (grokdeclarator): Try to come up with better magic |
| for implicitly globalizing classes implicitly declared in class |
| scope. |
| |
| Sun Feb 17 09:27:38 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-tree.c (virtual_offset): New function. Returns the offset |
| of a baseclass that is virtual or comes from a virtual baseclass, or |
| NULL if there is no such baseclass. |
| * cplus-class.c (modify_vtable_entries): Call this function instead |
| of `virtual_member'. `virtual_member' can return the wrong thing if |
| we try to use it for an offset computation of a baseclass which is |
| not strictly a virtual baseclass. |
| |
| Sat Feb 16 06:21:03 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * recog.c (validate_replace_rtx_1): Use correct rtx_code for the |
| new operation when commuting operands. |
| Generalize to commute operands on comparison operation. |
| |
| Fri Feb 15 23:01:24 1991 Richard Stallman (rms at geech.ai.mit.edu) |
| |
| * c-parse.y (initlist): Finish changing `case N:' to `[N]'. |
| |
| * combine.c (try_combine): Update reg_first_use. Flush useless links. |
| |
| Thu Feb 14 17:06:44 1991 Ken Raeburn (raeburn at watch.com) |
| |
| * cplus-parse.y (template_parm): New derivation from `class ID', |
| for consistent return of `identifier_node' nodes with `class A : |
| B' case. |
| * cplus-template (end_template_parm_list): Nothing to strip off of |
| identifier_nodes now. |
| (process_template_parm): Strip off one level of tree_list, |
| discarding (for now) the required base class. Don't need to run |
| through grok* any more. |
| |
| Sun Feb 10 19:23:21 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * gcc.c (main, process_command, default_compilers): Fix typos. |
| |
| Sat Feb 9 15:06:43 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * gcc.c (process_command): Handle separate args for -B, -b, -V. |
| |
| * gcc.c (lookup_compiler): New function. Handles alias entries. |
| (main): Call that. |
| (default_compilers): Make all real suffixes into alias entries. |
| (infiles): Now a vector of structures, containing specified language. |
| (process_command): Handle -x to specify language. |
| (main): Use specified language if any. |
| |
| Fri Feb 8 18:31:00 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * fold-const.c (fold): Set TREE_USED when create COMPOUND_EXPR. |
| * stmt.c (warn_if_unused_value): Don't warn if TREE_USED. |
| * c-typeck.c (build_unary_op): Handle multiple casts inside ++. |
| |
| Fri Feb 8 07:37:24 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * real.h (dconst2): New variable. |
| * emit-rtl.c (init_emit_once): Initialize dconst2. |
| * tree.c (real_twop): New function. |
| * cse.c (simplify_unary_operation): Fold FLOAT, FLOAT_EXTEND, and |
| FLOAT_TRUNCATE. |
| (simplify_binary_operation): Convert x*2 to x+x. |
| (cse_insn): Handle case where constant equivalent is in table. |
| Fix minor bug with merging src_related_elt. |
| * fold-const.c (fold): If commutative operation, move a constant |
| first operand to the second operand. |
| Remove tests of constants as first operand for commutative operations. |
| Convert x*2 to x+x. |
| |
| Fri Feb 8 03:07:34 1991 Ken Raeburn (raeburn at watch.com) |
| |
| * cplus-ptree.c (print_lang_decl): Corrected argument list. Print |
| address of template info for TEMPLATE_DECL nodes. |
| |
| * cplus-decl.c (set_current_level_tags_transparency): New |
| function, for altering tag-transparency of a context. |
| |
| * cplus-parse.y (PRE_PARSED_METHOD_DEF): Was unused; now gone. |
| (template_instantiation): Handle $-references correctly. Generate |
| a class_head-like value for LC actions to operate on. |
| (maybe_base_class_list): New non-terminal: colon and base class |
| list, or empty. |
| (named_class_head): Use it. |
| (unnamed_class_head): Use '{', not LC. |
| (class_head): If template_instantiation found, use its value. |
| (template_arg): Apply groktypename to typename args. |
| |
| * cplus-template.c (template_text_obstack): Deleted, just use |
| permanent_obstack instead. |
| (init_template): Deleted; callers changed. |
| (current_template_info): New variable: pointer to last-saved |
| template info record. |
| (end_template_decl): Use DECL_NAME, DECL_ARGUMENTS, |
| DECL_LANG_SPECIFIC, rather than TREE_OPERANDs. Save most of |
| template info here. |
| (reinit_parse_for_template): Only save text here, in |
| already-allocated template info record. |
| (mangle_class_name_for_template): New function. |
| (instantiate_template): Finally written. |
| |
| Thu Feb 7 22:06:56 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * tm-i386v4.h (ASM_OUTPUT_COMMON): Specify rounding in the output. |
| (ASM_OUTPUT_LOCAL): Use .local and .comm. |
| |
| * tm-news.h (FUNCTION_PROLOGUE): Correct syntax of link insn. |
| (PRINT_OPERAND_ADDRESS): Use period, not colon, before index reg width. |
| |
| * stmt.c (pushcase, pushcase_range): |
| Don't warn for code before first `case' if there is a label on it. |
| |
| Thu Feb 7 06:23:10 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * integrate.c (initialize_for_inline): Accept COPY argument. |
| Only copy parameter DECL_RTL if COPY non-zero; in that case, |
| also replace DECL_RTL with copy. All callers changed. |
| (copy_decl_rtls): New function. |
| (save_for_inline_copying): Use copy_decl_rtls to copy MEM DECL_RTLs |
| in the function. |
| Copy address of pseudos if they are a MEM. |
| |
| Wed Feb 6 19:19:25 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-typeck.c (build_binary_op_nodefault): No warn for RSHIFT by 0. |
| |
| Wed Feb 6 17:37:23 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * function.c (fixup_var_refs_1): Accept a location in rtx instead |
| of an rtx. |
| Unless -fforce-mem, if an insn is valid with MEM, leave it alone. |
| Rework ZERO_ and SIGN_EXTRACT cases to properly do adjustments |
| and generalize to support other than QImode MEMs. |
| (fixup_var_refs_insns): Change call to fixup_var_refs_1. |
| |
| Wed Feb 6 08:14:21 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * m88k.md (cmp): Use reg_or_0_operand to avoid swapped compares. |
| (call patterns): Put use of r1 in a parallel construct. |
| (multiply and divide by a power of two): Now just multiply. The |
| new combiner will change divide by a power of two into multiply. |
| (movhi, movqi): Use zero-extend load. |
| * tm-m88k.h (BYTE_LOADS_ZERO_EXTEND): Use it. |
| (H constraint): Changed to mean one or two. |
| * out-m88k.c: Use the proper includes for non-USG systems. |
| * xm-m88k.h: Include tm.h at the end. |
| |
| Wed Feb 6 02:24:38 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-decl.c (pushtag): Don't try to nest classes from non-C++ |
| language scopes. |
| |
| Wed Feb 6 01:33:16 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * cse.c (simplify_binary_operation): Don't change div into mult. |
| |
| Tue Feb 5 10:59:53 1991 Ken Raeburn (raeburn at watch.com) |
| |
| * cplus-parse.y (template_instantiation): Supply base class list |
| and use guts of class declaration. Untested; will have to be |
| fixed up to deal with template context manipulations. |
| |
| Tue Feb 5 00:52:57 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-common.c (combine_strings): Finish fixing wide strings. |
| |
| * reload1.c (possible_group_p): New subroutine. |
| (reload): Don't kill last group when looking for a non-group. |
| |
| * expmed.c (expand_divmod): If emit cmp insn, force op0 into reg. |
| |
| * objc-parse.y (init_lex, yylex): max_wide now measured in chars. |
| (yylex): Treat \r as whitespace if traditional. |
| |
| * toplev.c (compile_file): Add missing arg for dbxout_finish. |
| |
| * objc-actions.c (lang_finish): New dummy function. |
| |
| * calls.c (expand_call): Recognize other names for setjmp-like fns. |
| |
| * gcc.c (main): Use obstack_init, not gcc_obstack_init. |
| |
| * varasm.c (assemble_zeros): New function. |
| All calls to ASM_OUTPUT_SKIP elsewhere now use this function. |
| Handle ASM_NO_SKIP_IN_TEXT. |
| * toplev.c (compile_file): Use assemble_zeros. |
| * final.c (end_final): Likewise. |
| * tm-3b1.h, tm-att386.h, tm-mot3300.h (ASM_NO_SKIP_IN_TEXT): |
| Define as 1. |
| * tm-3b1.h (ASM_OUTPUT_SKIP): Don't deal with outputting zeros. |
| |
| Mon Feb 4 20:37:33 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * m68k.md: Use %$ and %& where appropriate. |
| (special float_truncate pattern): New, for 68040. |
| (68881 DF multiply recognizers): Avoid fscale if 68040. |
| (68881 SF multiply recognizers): Avoid fsglmul if 68040. |
| |
| * tm-next.h (SECTION_FUNCTION): Simplify; remove last arg. |
| (EXTRA_SECTION_FUNCTIONS): Rewrite to go with that change. |
| |
| Mon Feb 4 18:22:54 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reorg.c (link_cc0_isns): New function. |
| (fill_simple_delay_slots, fill_slots_from_thread): Call it. |
| (fill_slots_from_thread): Don't make REG_CC_STATUS notes. |
| (delete_scheduled_jump): Use REG_CC_SETTER instead of REG_CC_STATUS. |
| Correctly locate compare insn in CC0 case. |
| (steal_delay_list_from_target): Don't steal an insn that sets cc0; |
| we can't safely copy it. |
| (fill_slots_from_thread): Can't put insn that sets CC0 in delay slot |
| if we don't own its thread; this would otherwise require copying it. |
| (relax_delay_slots): Don't collapse jump to next insn if it has a |
| cc0-setting insn in a delay slot. |
| |
| * reorg.c (update_block): Accept location to place USE marker; use if |
| INSN is in a delay slot. |
| (mark_target_live_regs): Handle the case where we deleted the start |
| of the basic block that was previously used for a target. |
| Ignore insns with INSN_FROM_TARGET_P. |
| (optimize_skip, try_merge_delay_insns, fill_simple_delay_slots): |
| Pass new argument to update_block. |
| (try_merge_delay_insns, redundant_insn_p): Clear INSN_FROM_TARGET_P |
| to show that this insn will be used in both paths of the branch. |
| (try_merge_delay_insns): Add calls to update_block for insns deleted |
| from delay slots. |
| |
| * reorg.c (mostly_true_jump): If no jumps between target and end of |
| function, predict as false. |
| If comparison == 0, predict false; != 0, predict true. |
| |
| * reorg.c (steal_delay_list_from_{target,fallthrough}): |
| Ignore redundant insn even if it can't be placed in our delay slot. |
| (fill_slots_from_thread): Likewise. |
| Ensure we don't call redundant_insn_p on any insns that conflict |
| with what we need and set. |
| |
| * reorg.c (fill_eager_delay_slots): Pick up new value of JUMP_LABEL; |
| it may have been changed by first call to fill_slots_from_thread. |
| |
| * rtl.h (REG_TAIL_CALL): Deleted; never documented or used. |
| (REG_CC_SETTER, REG_CC_USER): Replacements for REG_CC_STATUS. |
| * rtl.c (reg_note_name): New names. |
| * final.c (final_scan_insn): Replace REG_CC_STATUS with REG_CC_SETTER; |
| now only one insn. |
| * emit-rtl.c (next_cc0_user, prev_cc0_setter): Use REG_CC_SETTER and |
| REG_CC_USER. |
| |
| * cplus-cadillac.c, cplus-class.c, cplus-decl.c, cplus-lex.c: |
| Replace obstack_init with gcc_obstack_init. |
| * cplus-search.c, flow.c, gcc.c, loop.c, reload1.c: Likewise. |
| * reorg.c, stmt.c: Likewise. |
| |
| * reload1.c (eliminate_regs, case ASM_OPERANDS): Fix typo when making |
| new ASM_OPERANDS. |
| |
| * recog.c: Now includes insn-flags.h and insn-codes.h. |
| (validate_replace_rtx_1): If replacing the source of a ZERO_ or |
| SIGN_EXTRACT with a MEM, try to put the MEM in the mode to be used for |
| the MEM. |
| * Makefile.in (recog.o): Depends on insn-flags.h and insn-codes.h. |
| |
| Mon Feb 4 17:39:36 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-typeck.c (digest_init): Error if init array with another array. |
| |
| Mon Feb 4 04:58:20 1991 Ken Raeburn (raeburn at watch.com) |
| |
| * cplus-tree.def (TEMPLATE_DECL): New node type. |
| (TEMPLATE_PARM_IDX): New node type; like integer, with an extra |
| field. |
| |
| * cplus-method.c (check_text_len): Fix up error message to be more |
| correct. Moved function before new_text_len so that the latter |
| can call it and inlining can work. |
| (new_text_len): Call check_text_len. |
| |
| * cplus-method.c (build_overload_name): No longer static. |
| |
| * cplus-class.c (unuse_fields): Now static. |
| (popclass): Use a temporary when building C_C_D. |
| |
| * cplus-decl.c (lookup_tag): Don't complain about type mismatch if |
| the tag found is for a template. |
| |
| * cplus-lex.c: New lookup tables, for new "template" keyword. |
| (reinit_lang_specific): Call init_template. |
| (init_lex): Ditto. |
| (file_from_saved_text): Renamed from input_from_saved_text. |
| |
| * cplus-lex.c (identifier_type): New function; returns primary |
| type (IDENTIFIER, TYPENAME, PTYPENAME) indicated by token name. A |
| PTYPENAME is returned for (TYPE_DECL (TEMPLATE_DECL ...)) nodes. |
| (see_typename): Call it. |
| |
| * cplus-lex.c (yylex): In handling identifiers, use subset of |
| TYPENAME code for PTYPENAME tokens. |
| |
| * cplus-template.c: New file. |
| (begin_template_parm_list): Push new scope and switch to permanent |
| obstack. |
| (end_template_parm_list): Return parameter list as a tree vector. |
| (end_template_decl): Save away new TEMPLATE_DECL node. |
| (process_template_parm): Build up tree list of template |
| parameters. |
| (instantiate_template): For now, just complain. |
| (init_template): Set up template obstack. |
| (reinit_parse_for_template): Gobble up class definition text and |
| save it away. |
| |
| * cplus-parse.y (template_header, template_parm_list): Call above |
| routines. |
| (datadef): Put template declarations here, instead of in |
| class_head. |
| (named_class_head_sans_basetype, named_class_head, |
| unnamed_class_head): Break up old class_head derivations. |
| (class_head): Now any of the above, plus template types with or |
| without instantiation. |
| (template_type): Call instantiate_template. |
| (template_arg_list): Build up list of args. |
| |
| * cplus-tree.h (lang_type): Add TEMPLATE field. Also add macro |
| TYPE_TEMPLATE. |
| |
| Sun Feb 3 21:16:36 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * tm-m68k.h (PRINT_OPERAND): Handle `&' and `$'. |
| (PRINT_OPERAND_PUNCT_VALID): They are valid. |
| |
| * out-next.c (handle_pragma): Unread the newline. |
| |
| * toplev.c (main): Warn if meaningless optimizations are requested. |
| Don't enable options by default that would get warnings. |
| |
| * m68k.md (extend QI to HI): Typo in clr insn. |
| |
| * c-common.c (combine_strings): Decrement LEN properly when copying. |
| * c-parse.y (init_lex, yylex): max_wide now measured in chars. |
| |
| * tree.c (gcc_obstack_init): Fix typo in forward decl. |
| |
| Sat Feb 2 09:24:56 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-decl.c (poplevel): Change DECL_CONTEXT of decls only of |
| their context is CURRENT_FUNCTION_DECL. |
| |
| Fri Feb 1 13:46:07 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * print-tree.c (print_node): Don't print chain for `c' and `x' nodes. |
| |
| * loop.c (record_excess_regs): Moved here. |
| |
| See file ChangeLog.2. |