| Thu Jan 31 00:33:33 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * loop.c (scan_loop): Check each libcall for regs it uses |
| but does not mention in the equivalent value. |
| To move the libcall, we must have at most one such reg |
| and it must be moved as well. |
| (libcall_other_reg): New subroutine. |
| * rtlanal.c (record_excess_regs): New function. |
| |
| * tree.c (gcc_obstack_init): New function. |
| (init_obstacks, save_tree_context): Use that. |
| (OBSTACK_CHUNK_SIZE): New parameter. |
| * xm-next.h: New file. |
| * configure (m68k/next): Use that file. |
| |
| * flags.h (flag_no_common): Declare new flag to treat external defs |
| as ANSI specifies (i.e. not as common). |
| * toplev.c (flag_no_common, f_options): Support -fno-common. |
| * varasm.c (assemble_variable): Don't output a common if |
| flag_no_common is set. Treat as if initialized to 0. |
| |
| * gcc.c (default_compilers): Define __ASSEMBLER__ for .S file. |
| |
| * tm-aix386.h (ASM_OUTPUT_LOCAL): Ok to use bss, since no shared libs. |
| (LINK_SPEC): Pass through all -K and -T options. |
| * xm-aix386.h (TRUE, FALSE): Undef if already def, to avoid warning. |
| |
| * tm-m68k.h (TARGET_68040, TARGET_68040_ONLY): New machine flags. |
| (TARGET_SWITCHES): Alternatives to set them. |
| * tm-next.h (TARGET_DEFAULT): Changed to 0407 for 68040. |
| |
| * out-m68k.h (standard_68881_constant_p): Always return 0 |
| for TARGET_68040 since fmovecr is no longer implemented in hardware. |
| |
| * m68k.md (ftruncdf2, ftruncsf2): Don't emit fintrz for |
| TARGET_68040, since it is no longer implemented in hardware. |
| (muldf3): Don't use fscale on 68040, since not implemented in hardware. |
| |
| * toplev.c (optimize): Now stores specified optimization level. |
| (main): Keep the largest optimization level specified. |
| Handle any integer. |
| |
| * c-decl.c (pushdecl): Don't make an extern global for -traditional |
| if it uses any local types. |
| |
| * tm-sun386i.h (PCC_BITFFIELD_TYPE_MATTERS): Use 1 as value. |
| |
| Wed Jan 30 12:41:15 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * fixincludes (sys/systypes.h): Edit this to handle _SIZE_T, etc. |
| |
| * function.c (put_var_into_stack): Allocate var ref chain link |
| while in the proper function's obstack. |
| |
| * fold-const.c (const_binop): Don't crash for real/0 if have infinity. |
| |
| * flow.c (mark_set_1): Don't make log link for hard reg in asm insn. |
| |
| Wed Jan 30 07:45:33 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * sched.c (schedule_block): Indicate what insns constitute each |
| basic block. |
| |
| Tue Jan 29 12:35:42 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * Makefile.in (gnulib1.*, gnulib2.*): Declare them phony targets. |
| |
| * print-tree.c (print_node): Print message if TREE_PERMANENT is wrong. |
| * tree.c (object_permanent_p): New function. |
| |
| * print-tree.c (print_node): Remove DECL_LANG_FLAG_10. |
| |
| Tue Jan 29 10:07:48 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * m88k.md (minus/xor/and, neg/ne/compare/and): Delete these. This |
| should be done by combine. |
| (compare operator): Eliminate except when a SET_SRC. |
| * tm-m88k.h (OPTIMIZATION_OPTIONS): -fomit-frame-pointer is a |
| default optimization. |
| |
| Mon Jan 28 12:52:11 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * tree.h (DECL_VIRTUAL_P): Renamed from TREE_VIRTUAL. |
| (struct tree_common): Eliminate virtual_flag. |
| (struct tree_decl): Add virtual_flag. |
| |
| * Makefile.in (enquire.o): Pass -DNO_STDDEF. |
| |
| * m68k.md (tablejump): Now have a define_expand that does |
| different things depending on CASE_VECTOR_PC_RELATIVE, |
| and a separate define_insn for each case. |
| |
| * function.h (outer_function_chain): Declare the variable. |
| |
| * tree.c (debug_obstack): Fix typos. |
| * tree.h (struct tree_common): Fix typo. |
| |
| * Makefile.in (GNULIB1_TARGET, GNULIB2_TARGET): Variables deleted. |
| (gnulib): Depend on gnulib1.target and gnulib2.target explicitly. |
| |
| * dbxout.c (dbxout_type): Use DECL_VIRTUAL_P, not TREE_VIRTUAL. |
| |
| * cplus-tree.h (TREE_PRIVATE, TREE_PROTECTED): #if 0. |
| |
| * cexp.y (keywords): Cast names for parens to U_CHAR *. |
| |
| * gcc.c (process_command): Fix typo setting switches[n_switches].arg. |
| |
| * loop.c (loop_reg_used_before_p): Check insns before INSN, not after. |
| |
| * objc-actions.c (objc_finish): Renamed from lang_finish. |
| * objc-parse.y (program): Call objc_finish at the end. |
| |
| * Changes from Matthew Self (mself@next.com): |
| |
| * objc-parse.y: Since objc-parse.y was so out of date with |
| respect to c-parse.y, I started over with c-parse.y and |
| reintegrated the Objective-C modifications. Now that |
| Objective-C is working I hope that objc-parse.y will be kept |
| more up to date.... I did not re-integrate the lexer since I |
| don't have gperf working. I simply cut and pasted what |
| Stallman had in objc-parse.y. Someone with access to gperf |
| should re-generate this stuff. |
| |
| * objc-actions.c (comp_method_with_proto, |
| comp_proto_with_proto): Stallman's change to use the |
| functions end_temporary_allocation and |
| resume_temporary_allocation is incorrect, since it always |
| leaves allocation temporary, whether it was before or not. |
| |
| Perhaps the push and pop functions would do the trick.... |
| |
| * objc-actions.c (get_arg_type_list): Use new function |
| groktypename_in_parm_context. |
| |
| * objc-actions.c (_OBJC_SELECTOR_REFERENCES_decl, |
| _OBJC_SELECTOR_REFERENCES_id): Removed. |
| |
| * objc-actions.c (synth_module_prologue): Eliminated code to |
| forward declare the selector references array. |
| |
| * objc-actions.c (init_objc_symtab): Eliminated code to |
| initialize "refs" field in objc_symtab structure (which is |
| now vestigial). |
| |
| * objc-actions.c (build_selector_translation_table): Rewrote. |
| |
| * objc-actions.c (build_selector_reference): New routine. |
| |
| * objc-actions.c (build_message_expr, build_selector_expr): |
| Use new routine. |
| |
| * config/tm-next.h (GO_IF_INDEXABLE_BASE): Don't use pc |
| relative addressing for LABEL_REF's. Since branch tables are |
| in the const section, we treat LABEL_REF's like SYMBOL_REF's |
| here. Otherwise invalid addresses were being generated. |
| |
| * config/tm-next.h (CASE_VECTOR_PC_RELATIVE, CASE_VECTOR_MODE): |
| Use absolute branch tables rather than relative ones. |
| |
| * config/tm-next.h (ASM_OUTPUT_MAIN_SOURCE_FILE_END): Output |
| an N_SO symbol with no name to mark the end of the module. |
| This is needed to support scattered loading on the NeXT. |
| |
| * config/out-next.c (handle_pragma): Call to xrealloc had wrong args. |
| |
| * configure: Entry for NeXT must set out_file to out-next.c. |
| |
| * config/out-next.c: Typo: "flags" -> "flags.h" |
| |
| * config/tm-next.h (LIB_SPEC): Brought up-to-date. There |
| are probably more changes needed here. |
| |
| * c-decl.c (pushdecl_top_level): New function. This was |
| copied from an older version of g++. |
| |
| * c-decl.c (init_decl_processing): Make alloca first arg sizetype. |
| |
| * c-decl.c (groktypename_in_parm_context): New function. |
| |
| Mon Jan 28 07:07:01 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * loop.c (loop_reg_used_before_p): Don't use INSN_LUID since INSN |
| might have been made by loop.c for an outer loop. |
| |
| * loop.c (move_movables, strength_reduce): Replace register references |
| in REG_NOTES as well as PATTERN. |
| |
| * loop.c (strength_reduce): Call maybe_eliminate_biv twice, not |
| three times. |
| (maybe_eliminate_biv): Don't abort if elimination fails even though |
| we thought it wouldn't. This can happen if certain insn patterns |
| aren't valid. |
| (maybe_eliminate_biv_1): Ensure that we do not change the insn at |
| all if all the required changes can't be done. |
| |
| Sun Jan 27 21:26:29 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * Makefile.in: Rename config-dir back to config. |
| |
| Sat Jan 26 17:48:22 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * objc-parse.y (program): Call objc_finish. |
| * objc-actions.c (objc_finish): Renamed from lang_finish. |
| |
| * objc-actions.c, objc-parse.y: New version from NeXT. |
| |
| Sat Jan 26 17:37:48 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expr.c (expand_expr, case COND_EXPR): Disable special-case of |
| A ? B : C when B and C are simple. This is now done better by jump. |
| |
| Sat Jan 26 13:16:58 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * tree.h (TREE_PRIVATE, TREE_PROTECTED, TREE_VIRTUAL): New macros. |
| (struct tree_common): New flag fields. |
| * dbxout.c (dbxout_type): Get rid of conditional; can always use these. |
| |
| * cccp.c (lookup_import): Do return -2 if file found. |
| (main): Handle `.m' suffix like `.S'. |
| |
| * configure (m68k/next): Use out-next.c. |
| |
| * WORD_SWITCH_TAKES_ARG and SWITCH_TAKES_ARG now give # of args. |
| * gcc.c (struct switchstr): New field `args' replaces `part2'. |
| (process_command): Record all the args a switch has. |
| (give_switch): Pass all the strings in `args'. |
| |
| * tree.h (struct tree_common): Normally make `code' an enum tree_code. |
| |
| * m68k.md (tablejump): New pattern. |
| (casesi, etc.): Deleted. |
| |
| * tree.c (debug_obstack): New function. |
| |
| * toplev.c (compile_file): Call dbxout_finish near the end. |
| * dbxout.c (dbxout_finish): New function. |
| |
| * print-tree.c (print_node): Always print ERROR_MARK node briefly. |
| |
| * objc-actions.h (METHOD_ENCODING, CLASS_CATEGORY_LIST): New macros. |
| |
| * gcc.c (execute): Make fatal signal message clearer. |
| (default_compilers): For .m file, define __OBJC__, |
| and pass -lang-objc and -gen-decls to cc1. |
| |
| * dwarfout.c: Include output.h. |
| (current_function_decl, asm_out_file): Explicit extern decls deleted. |
| (abort, fatal): Explicit extern decls deleted. |
| (NO_RETURN): Definition deleted. |
| (named_labels): Don't declare it. |
| (output_symbol): Don't use it. |
| (MAXPATHLEN): Don't define this. Don't include sys/param.h. |
| (output_source_file_die): Avoid limit on file name size. |
| (output_symbols_for_stmt): Deleted. |
| (output_symbols_for_block): Adapt to using BLOCK, not LET_STMT. |
| |
| * configure: Renamed from `config'. |
| * config: Directory renamed back from config-dir. |
| |
| Sat Jan 26 1990 Ron Guilmette (rfg at ncd.com) |
| |
| * README.DWARF: updated to reflect changes to dwarfout.c, the |
| inclusion of dwarf.h (and its changes) and the fact that the |
| DWARF support is no longer directly tied to the DG versions of |
| GCC. |
| |
| * dwarfout.c: included a patch (provided by Ray Essick) to allow |
| dwarfout.c to properly get a value for MAXPATHLEN even on (old) |
| System V.3 systems. |
| |
| * dwarfout.c: added support for long long types (as suggested by |
| Ray Essick). |
| |
| * dwarfout.c: added support for the AT_comp_dir attribute. Also, |
| as part of this change, the name of the compilation directory is |
| no longer placed into in the .sources section. |
| |
| * dwarfout.c: added support for the AT_addr_ranges attribute. |
| |
| * dwarfout.c: added support for the AT_prototyped attribute. |
| |
| * dwarfout.c: added support for the AT_src_info attribute. Also, |
| as part of this change, there is no longer a "special" entry |
| at the start of the .srcinfo section for each compilation unit, |
| and the contents of the "special" final entry in the .srcinfo |
| section have changed (to { -1, -1 }). |
| |
| * dwarfout.c: modified to allow additional GNU DWARF extensions |
| to be generated whenever the corresponding extended attribute |
| codes are defined (presumably within a modified dwarf.h file). |
| |
| * dwarfout.c: use the section names .srcinfo and .sources rather |
| than .finfo and .files. The additional specificity is warranted |
| because the DWARF information may someday include information |
| about object files as well as source files. |
| |
| * dwarfout.c: fixed a bug where a type attribute was being generated |
| for functions and function types even when the return type was |
| void. "Standard" dwarf says that if the return type for a function |
| or function type is void then no type attribute should be generated |
| for the corresponding DIE. |
| |
| Sat Jan 26 04:22:08 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-lex.c (interface_strcmp): Handle String.String.Map.cc and |
| friends. |
| |
| * cplus-typeck.c (build_unary_op): Merge change to generate better |
| code from simple cast expression. |
| |
| Fri Jan 25 10:06:28 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-decl.c (pushtag): Don't call `pushdecl' if the type's name |
| is anonymous, lest we recurse ad infinitum. |
| |
| Thu Jan 24 23:56:55 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * optabs.c (expand_binop, expand_unop): Word at a time only for ints. |
| |
| Thu Jan 24 09:40:37 1991 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * sdbout.c (sdbout_symbol): Apply changes in dbxout.c to deal with |
| SUBREG. Don't emit a symbolic definition for variables that can't |
| be represented. |
| |
| Thu Jan 24 21:18:15 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * config: Conditional for setting $os was backward. |
| Also mention name of make-var file if one exists. |
| |
| * out-i386.c: Delete a large piece of accidental insertion. |
| |
| * dwarfout.c: Don't include c-tree.h or cplus-tree.h. |
| (INT_TYPE_SIZE, etc.): Define them if not overridden. |
| (fundamental_type_code): Distinguish types by TYPE_PRECISION. |
| But also check for the built-in C type names. |
| |
| Thu Jan 24 15:23:17 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * gcc.c (default_compilers): Pass all args starting with "O" to |
| cc1 so that -O2 is passed along. |
| |
| Thu Jan 24 13:10:27 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * stmt.c (expand_expr_stmt): Don't warn for any casts to void. |
| |
| * config: Fix typos setting shell vars. |
| Rename config to config-dir. |
| Insert missing \ in case for delta. |
| |
| Wed Jan 23 16:31:27 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * emit-rtl.c (emit_jump_insn_{before,after}): Allow PATTERN to be |
| a SEQUENCE. |
| |
| * loop.c (check_dbra_loop): Use emit_jump_insn_before when writing |
| out compare and jump sequence, not emit_insn_before, to ensure that |
| if we only write one insn that it is a JUMP_INSN. |
| |
| * toplev.c (flag_rerun_cse_after_loop): New: -frerun-cse-after-loop. |
| (rest_of_compilation): Rerun cse after loop if desired. |
| (main): Add support for -O2. |
| Prescan args for -O and -O2 to set default values for many -f options. |
| Add call to new macro OPTIMIZATION_OPTIONS. |
| Save status of -version until all args have been processed; then |
| write out the info. |
| (print_single_switch): New function. |
| (print_switch_values): Renamed from print_target_switch_defaults. |
| Now prints out currently enabled -f, -m, and -W switches. Calls |
| print_single_switch to write out switch and handle long lines. |
| |
| * rtl.def (SUBREG): Change rtx class from 'o' to 'x'. |
| |
| * cse.c (find_comparison_args): Ignore hash table entry if not valid. |
| |
| Wed Jan 23 00:12:24 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * config: File renamed from config.gcc. |
| Allow abbreviations for +-options. |
| Allow config HOST TARGET. |
| Support +gas and +nfp as separate options. |
| Rename all the machine alternatives to general scheme: |
| cpu/company-system. Allow abbreviations for cpu/company pairs. |
| * config-dir: Dir renamed from config. |
| |
| * Makefile.in (install-dir): Create bindir here. |
| |
| * cccp.c (main): Delete duplicat p++ left in last change. |
| |
| * Makefile.in (GNULIB1, GNULIB1_TARGET): Renamed from GNULIB*. |
| (gnulib1.portable, gnulib1.target): Renamed from gnulib.*. |
| They now make a file named gnulib1, from gnulib1.c. |
| (LIB1FUNCS, LIB1FUNCS_EXTRA): Renamed from LIBFUNCS*. |
| (for-bootstrap, rest.encap): Depend on gnulib, not GNULIB2_TARGET. |
| (stamp-gnulib2): This file is no longer used. |
| (gnulib2.portable): Old stamp-gnulib2 rule renamed to this. |
| Now create a file named gnulib2, from gnulib2.c alone. |
| (gnulib): New target, combines gnulib1 and gnulib2 into gnulib. |
| (mostlyclean): Delete additional temporary files. |
| No need to avoid deleting stamp-gnulib2. |
| (clean): Delete gnulib1 and gnulib2, but not stamp-gnulib2. |
| (realclean): No need to delete gnulib here. |
| (install-gnulib): Changed dependencies. |
| * gnulib1.c: File gnulib.c renamed. |
| |
| * Makefile.in (install-dir): Create bindir here. |
| |
| * cccp.c (main): Delete duplicat p++ left in last change. |
| |
| Sun Jan 20 14:00:16 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-class.c (finish_struct): Conditionalize EMPTY_FIELD_BOUNDARY |
| on whether or not it is defined. Similarly for PCC_BIT_FIELD_MATTERS. |
| |
| Wed Jan 16 18:56:30 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * cse.c (fold_rtx): When folding dispatch table, stay inside bounds. |
| |
| Wed Jan 16 08:11:48 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reload.c (find_reloads_toplev): Fix typo in recent change. |
| |
| * reload1.c (eliminate_regs): If we have a non-paradoxical |
| (subreg (pseudo)) and the pseudo has an equivalent memory |
| location, replace the SUBREG because find_reloads may do it. |
| |
| Tue Jan 15 01:41:28 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * loop.c (scan_loop): Condition for movability was wrong. |
| A reg that isn't necessarily set may be unsafe |
| even if used only inside the loop. |
| However, a reg used only in the same basic block after the set is safe. |
| So is a reg that isn't a user-level variable. |
| |
| * loop.c (loop_optimize): Reverse order of scanning loops. |
| |
| * loop.c (scan_loop): After skipping the insns of a libcall sequence, |
| ignore notes when searching back to find the last insn of the seq. |
| |
| * cccp.c (main): Use envvar GCC_EXEC_PATH to specify translation |
| of prefixe in default include dirs. |
| |
| * cccp.c (main): Do path_includes after explicit options. |
| |
| * combine.c (try_distrib): Don't push + thru negative count shifts. |
| |
| Mon Jan 14 09:40:28 1991 Ken Raeburn (raeburn at watch.com) |
| |
| * cplus-lex.c (yylex): Even in `extern "C"', the keywords are the |
| same. |
| |
| * cplus-lex.c (input_from_saved_text): New function. Set string |
| source for FILE pointer. |
| (yylex, do_pending_inlines): Call it. |
| |
| * cplus-parse.y (stmts, stmt): Type is now `tree'. Some actions |
| fixed to return it. |
| |
| * cplus-lex.c (reinit_parse_for_block): New function, with most of |
| the guts of reinit_parse_for_method. Magic argument IS_TEMPLATE |
| chooses a set of error messages. |
| (reinit_parse_for_method): Call it. |
| cplus-template.c (reinit_parse_for_template): New function, also |
| calls reinit_parse_for_block. |
| |
| Mon Jan 14 07:20:36 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * loop.c (skip_consec_insns, move_movables, strength_reduce): Don't |
| call find_reg_note on a NOTE. |
| |
| Sun Jan 13 15:45:23 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * cccp.c: Separate namespace for assertions. Don't expand macros |
| inside assertions in #if. Allow arbitrary token sequences. |
| (rescan): Special handling after `#' if assertions_flag. |
| (expand_to_temp_buffer): New arg sets assertions_flag. Callers changed. |
| (eval_if_expression): Pass 1 for that arg. |
| (skip_paren_group): New function. |
| (assertion_hashtab, ASSERTION_HASHSIZE, ASSERTION_HASHNODE): New. |
| (assertion_install, assertion_lookup, delete_assertion): New functions. |
| (T_ASSERTION): Deleted. |
| (tokenlist_list): Renamed from arglist_list. |
| (read_token_list): Renamed from read_keyword_list. Much changed. |
| Copy the strings into the heap. |
| (free_token_list): Renamed from free_keyword_list. Free the strings. |
| (do_assert, do_unassert): Considerably changed. |
| (check_assertion): Somewhat changed. |
| (check_macro_name): Extra arg contributes to error message. |
| * cexp.y (yylex): Parse everything as a name if keyword_parsing. |
| (rule for assertions): Set, then clear, keyword_parsing. |
| (keywords): Allow empty sequence. Allow nested parens. |
| |
| Sat Jan 12 12:18:00 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-typeck.c (build_unary_op): Make better code for simple casts. |
| |
| * reload.c (find_reloads): Computing reload_when_needed, don't neglect |
| operands that don't have output reloads. |
| |
| * cse.c (refers_to_mem_p): At check_addr, handle PLUS inside CONST. |
| |
| Sat Jan 12 06:30:56 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reorg.c (steal_delay_list_from_*): Add missing argument to calls to |
| insn_sets_resource_p. |
| (fill_eager_delay_slots, relax_delay_slots): Add missing argument |
| to calls to mostly_true_jump. |
| (relax_delay_slots): Correctly handle case where we can't invert jump. |
| |
| * reload.c (find_reloads_toplev): If we have a SUBREG of a |
| pseudo that resides in memory and the address is not offsettable, |
| substitute for the pseudo now so we can generate a reload for the |
| address. |
| |
| Fri Jan 11 14:39:09 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * tm-next.h (LIB_SPEC, STARTFILE_SPEC): Don't support -p. |
| |
| Thu Jan 10 12:26:49 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * tm-sun2.h (CC1_SPEC): Define to ignore -sun2 and -target. |
| (WORD_SWITCH_TAKES_ARG): Define to recognize -target. |
| (LIB_SPEC): Define; handle -a. |
| * tm-sun2os4.h: New file. |
| * tm-m68k.h (TARGET_SWITCHES): Handle -msky and -mnosky. |
| (TARGET_SKY): New macro. |
| |
| * tm-next.h (LIB_SPEC): Use -lsys_s, not -lc. |
| |
| * c-parse.y (yylex): Fix typo. |
| |
| * genoutput.c (output_prologue): Make insn-output.c use insn-codes.h. |
| * Makefile.in (insn-output.o): Depend on insn-codes.h. |
| |
| * Makefile.in (install-headers): Save $(libsubdir) before cd. |
| |
| * Makefile.in (gnulib): Depend on config.status. |
| |
| * gnulib2.c (__umulsidi3): Use #else around inline function. |
| Use __-style names for all machines. |
| |
| Wed Jan 9 17:06:18 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * out-sparc.c (various places): Change \; to \n\t in printf |
| strings. |
| |
| * sparc.md: Change PIC initialization pattern to recognize pattern |
| that doesn't involve a clobber. |
| * out-sparc.c: Rest of change is here, where PIC initialization is |
| emitted. |
| |
| * cse.c (simplify_unary_operation, simplify_binary_operation): |
| Correctly adjust VAL for bits outside MODE. |
| |
| Wed Jan 9 15:45:26 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * flow.c (libcall_dead_p): Handle a CALL in a PARALLEL. |
| |
| Tue Jan 8 13:35:50 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expmed.c (emit_store_flag): Correct UNSIGNEDP value passed to |
| convert_to_mode and expand_unop. |
| |
| Mon Jan 7 11:56:31 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * gplus.gperf: New keywords for templates and other extensions. |
| |
| * cplus-lex.c: Incorprate new gperf code. |
| |
| * cplus-class.c (resolve_scope_to_name): New function. |
| (build_scoped_method_call): Call `resolve_scope_to_name' instead of |
| handling by itself. |
| * cplus-decl.c (pushdecl_class_level): Give forward declaration. |
| (lookup_nested_type): New function. |
| (pushtag,lookup_tag,xref_tag): Handle nested classes. |
| (finish_function): Add comment about obscure argument passing |
| convention for static method calls (at the call site). Also, don't |
| call operator delete with NULL pointer. Call it with |
| `current_class_decl' instead. |
| (globalize_nested_type): New function. Used when we learn that a |
| type which initially appeared to be nested should be defined in the |
| global scope instead. |
| (grokdeclarator): Call `globalize_nested_type' when grokking an |
| as-yet undefined class type. |
| * cplus-dem.c: Updated to handle qualified (i.e. nested) types. |
| This means handling the new letter `Q' in mangled names. |
| * cplus-init.c (build_member_call): Handle nested classes using |
| `resolve_scope_to_name' instead of handling itself. |
| * cplus-lex.c (typename_scope_in_progress): New static variable to |
| allow the lexer to figure out what are nested class typenames, |
| scoped member references, etc., without getting the parser too |
| involved. |
| (yylex): Recognize SCOPED_TYPENAME and TYPENAME_SCOPE tokens. |
| Also, recognize '<' and '>' separately from ARITHCOMPARE so we can |
| implement templates. |
| No longer recognizes (X::*) or (X::&) as single tokens. |
| * cplus-method.c (build_overload_nested_name): New function to build |
| internal names for nested typenames. |
| * cplus-parse.y: Handle parameterized type syntax (more or less). |
| (dummy_decl): Gone! |
| Nested types are now handled. |
| * cplus-tree.h (DECL_UNDEFINED_FRIENDS): Moved out of DECL_CONTEXT |
| slot of TYPE_DECLs. DECL_CONTEXT of typename is now the enclosing |
| type for nested types. |
| (DECL_NESTED_TYPENAME): An identifier pointer that makes the name of |
| the type unique for the compilation. |
| (IDENTIFIER_*): When initializing, call `perm_calloc', not |
| permalloc, since non-zero values actually mean something, |
| and we don't guarantee to initialize everything in one go. |
| * tree.c (perm_calloc): New function. |
| * cplus-typeck.c (default_conversion): Don't defaultly convert a |
| naked METHOD_REF such that it becomes a virtual function table |
| index. Only let this happen if user requests it with `&'. |
| |
| * Makefile.in: Handle new source file cplus-template.c. |
| |
| Mon Jan 7 15:03:53 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-typeck.c (process_init_constructor): Error if values |
| provided for an array of empty elements. |
| |
| * out-i386.c (fp_top_dead_p1): Follow jump only if optimizing. |
| (fp_call_internal): Discard result if unused. Use fp_top_dead_p1. |
| |
| * cse.c (cse_insn): In special case for (set REG0 REG1), |
| change any REG_EQUIV notes to REG_EQUAL. |
| |
| * tm-sun386i.h (PCC_BITFIELD_TYPE_MATTERS): Define it. |
| |
| * tm-att386.h (ASM_OUTPUT_LOCAL): Change back to data section. |
| |
| * genrecog.c (write_tree_1): Typo in printf string. |
| |
| * flow.c (libcall_dead_p): New arguments NOTE and INSN. |
| Now test that the hard return reg in the call is dead. |
| Callers changed. |
| |
| Mon Jan 7 12:27:07 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * recog.c (cancel_changes): Cancel changes in opposite order we made |
| them. |
| |
| * integrate.c (subst_constants): Only commute operands if op0 is const. |
| |
| * rtl.def (INLINE_HEADER): Add new integer field. |
| * rtl.h (POPS_ARGS): New macro for place to save |
| current_function_pops_args. |
| (FUNCTION_FLAG_POPS_ARGS): Deleted; no longer a single bit. |
| * emit-rtl.c (gen_inline_header_rtx): Add new arg for "pops args". |
| * integrate.c (initialize_for_inline, output_inline_function): |
| Correctly save and restore current_function_pops_args. |
| |
| Sun Jan 6 14:10:44 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * rtl.h (ASM_OPERANDS_INPUT_LENGTH): New macro. |
| * reload1.c (eliminate_regs): Use ASM_OPERANDS_... macros. |
| * recog.c (asm_noperands, decode_asm_operands): Likewise. |
| |
| * rtl.def (IF_THEN_ELSE): Set class to '3'. |
| |
| * cse.c (simplify_{unary,binary,ternary}_operation): New functions, |
| from fold_rtx. |
| (fold_rtx): Call these function to do the bulk of the work. |
| Use GET_RTX_CLASS to find commutative and comparison operations. |
| Swap folded_arg[01] when commuting operands. |
| * rtl.h: Define new functions. |
| * integrate.c (try_constants): Replace constant folding code with |
| calls to new functions above. |
| In commutative operations, put constants last. |
| |
| * genemit.c (struct clobber_pat): New data structure. |
| (gen_insn): If pattern ends with a group of CLOBBERs of hard |
| registers, store this information in a struct clobber_pat. |
| (output_add_clobbers): New function. |
| (main): Call it to write code to add CLOBBERs. |
| * genrecog.c (struct decision): Add new field num_clobbers_to_add. |
| (make_insn_sequence): If pattern ends with a group of CLOBBERs, |
| set up to recognize it without the CLOBBERs but to indicate the |
| number of CLOBBERs omitted. |
| (add_to_sequence): Initialize num_clobbers_to_add. |
| Remove unnecessary conditionalization on STORE_FLAG_VALUE. |
| (break_out_subroutines, write_subroutine, write_tree): Remove |
| RETURN_PREFIX parameter; TYPE is sufficient. |
| (write_subroutine): Add extra parameter for recog_* functions. |
| (write_tree_1): Pass TYPE instead of string for return. |
| Write out code to return number of CLOBBERs needed. |
| (write_tree): Add new parameter to recog_*. |
| (main): Add new parameter to recog. |
| Don't pass return string to break_out_subroutines and write_tree. |
| * recog.c (recog_memoized): Pass extra (0) parameter to recog. |
| * combine.c (recog_for_combine): New function. |
| (try_combine, simplify_and_cc0, try_distrib): Use it instead of recog. |
| (reg_dead_at_p, reg_dead_at_p_1): New functions. |
| |
| * flow.c (mark_set_1): Count in reg_n_sets when a part of a register |
| is modified. |
| Update SIGNIFICANT correctly when subreg_p and multiple hard regs. |
| Compute reg_n_sets for hard registers. |
| |
| Sun Jan 6 13:41:49 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * function.c (locate_and_pad_parm): Do REG_PARM_STACK_SPACE just once. |
| |
| * Changes by wilson@cygnus.com. |
| * calls.c (expand_call): Test value of REG_PARM_STACK_SPACE instead |
| of assuming that it will always be greater than zero. |
| * function.c (assign_parms): Same as above. Also, correct |
| calculation of STACK_BYTES. |
| |
| * reload1.c (reload_reg_free_p): Old input reload blocks input_addr. |
| |
| Sat Jan 5 18:32:15 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * Makefile.in (mostlyclean): New name for old `clean'. |
| (clean): Deletes gnulib also. |
| (cleanconfig): Need not delete gnulib here. |
| |
| * reload.c (push_reload): Don't use dying reg unless operand fits. |
| |
| * c-parse.y (yylex): Hex and octal constants now traditionally signed. |
| |
| Sat Jan 5 18:03:50 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * regclass.c (regclass): reg_n_sets is one per set. It does not |
| take into account loop_depth. So don't adjust by loop_depth here. |
| |
| Fri Jan 4 13:18:07 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * function.c (put_var_into_stack): Don't mung virtual reg. |
| (fix_lexical_addr): Accept the virtual arg pointer. |
| * function.h (struct var_refs_queue): New structure. |
| (struct function): Use that for the pending var refs queue. |
| |
| * print-tree.c (print_node): Nicer format for rtl of decls. |
| |
| * c-decl.c (push_c_function_context, pop_c_function_context): |
| No need to deal with current_function_decl. |
| |
| * c-parse.y (nested_function): Delete spurious nonterminal. |
| |
| Fri Jan 4 12:13:14 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-class.c (modify_vtable_entries): In case we are modifying |
| the main vtable, start with the vtable that comes from the immediate |
| baseclass, not the most base class. This is needed because later |
| fixups (for non-first and virtual baseclasses) do not fix up this |
| case. |
| |
| Fri Jan 4 06:55:00 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * optabs.c (expand_binop): Fix typo in testing for SImode operation. |
| Generalize to apply in more cases by calling emit_store_flag rather |
| than doing the gen_sltu explicitly. |
| |
| * expmed.c (store_bit_field, extract_bit_field): When insv/extv |
| don't allow MEM and we need to load the field into a register, don't |
| use the mode of OP0 if it is wider than the mode to be used for |
| insv/extv operating on a register. |
| |
| * expmed.c (emit_stor_flag): Try to convert some comparisons with |
| 1 and -1 to comparisons with zero. |
| Explicitly test sign bit of STORE_FLAG_VALUE rather than testing it |
| for being less than zero. |
| |
| * cse.c (find_comparison_args): Don't compute STORE_FLAG_VALUE < 0; |
| instead, test the relevant sign bit. |
| Use GET_RTX_CLASS instead of comparison_code_p. |
| * loop.c (get_condition): Likewise. |
| |
| * recog.c (validate_change): Eliminate duplicate code by always |
| saving the change. If in_group == 0, call apply_change_group. |
| (apply_change_group): If recog_memoized fails, see if we have a |
| CLOBBER at the end. Use validate_change to replace the pattern |
| with one without the CLOBBER if so; later we will verify that change. |
| |
| * tree.c (stabilize_reference_1): Now static; also, define as forward |
| reference at start of file. |
| |
| * rtl.def: Add new field in DEF_RTL_EXPR macro to give the "class" |
| of the rtx operation. |
| * rtl.h: DEF_RTL_EXPR has one additional arg. |
| (rtx_class, GET_RTX_CLASS): New var and macro. |
| * rtl.c: DEF_RTL_EXPR has one additional arg. |
| (rtx_class): Initialize table. |
| |
| * reload.c (push_reload): If an input operand contains a dead |
| register used nowhere else in the insn, try to use it as a reload reg. |
| * reload1.c (reload_as_needed): If cancelling optional reload, |
| clear reload_reg_rtx. |
| (choose_reload_regs): If we can find reload value lying around, |
| use that register unless choice made by find_reloads would also save |
| an insn (the new choice added above won't). |
| |
| * genoutput.c: Update comments on things written. Change order to |
| agree with the order written. |
| (output_epilogue): Remove extraneous tests. |
| |
| Thu Jan 3 13:32:54 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * rtl.c (read_rtx): Cast NULL vector. |
| |
| * By Jim Wilson. |
| * tree.c (stabilize_reference): Modified to call stabilize_reference_1 |
| instead of save_expr. |
| (stabilize_reference_1): New function. For arithmetic operator trees, |
| recurse on the subtrees. Otherwise, put a SAVE_EXPR around the |
| tree if it has side-effects. |
| |
| Thu Jan 3 12:37:56 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reload1.c (choose_reload_regs): Only set reload_when_needed to |
| RELOAD_FOR_OUTPUT or RELOAD_FOR_INPUT when it used to be RELOAD_OTHER. |
| |
| Wed Jan 2 18:28:23 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * emit-rtl.c (init_emit_once): Fix typo setting constm1_rtx. |
| |
| Wed Jan 2 07:53:04 1991 Michael Tiemann (tiemann at cygnus.com) |
| |
| * sparc.md (fix_truncdfsi2 recognizer): xoperands must have 3 |
| elements because `output_fp_move_double' can write to operands[2]. |
| |
| Wed Jan 2 17:16:20 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * calls.c (emit_call_1): If we have call_pop, use it if we have |
| no stack arguments. |
| |
| * out-vax.c (relational_op): Deleted, redundant. |
| * vax.md (branch): Use comparison_operator (in recog.c) instead of |
| relational_op. |
| * tm-vax.h (PRINT_OPERAND_PUNCT_VALID_P): "C" is not punctuation. |
| |
| * reload1.c (reload_as_needed, forget_old_reloads_1): Don't clear |
| reg_has_output_reload and reg_is_output_reload for each insn, just |
| ones that need reload. Instead, interpret each entry as zero if |
| n_reloads == 0. |
| |
| Wed Jan 2 15:52:13 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * optabs.c (expand_binop): Fix typos. |
| |
| * toplev.c (rest_of_compilation): Clear cse_not_expected after loop. |
| * rtl.h (cse_not_expected): Declare here. |
| * expr.h: Not here. |
| |
| Tue Jan 1 21:55:11 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * emit-rtl.c (constm1_rtx): New standard constant. |
| (gen_rtx): Use it when appropriate. |
| (init_emit_once): Initialize it. |
| |
| * out-vax.c (split_quadword_operands): New function. |
| (relational_op): Likewise. |
| * vax.md (extendsidi2, adddi3, subdi3): New patterns. |
| (movdi): Use clrq when appropriate. |
| (movaq recognizer): New pattern. |
| |
| * recog.h (OUT_FCN): New macro. |
| * genoutput.c: Include recog.h in output file. No |
| longer define "const", since that happens in recog.h. |
| |
| * tm-vax.h (PRINT_OPERAND): Add 'C' to print a reversed condition. |
| * out-vax.c (rev_cond_name): Return its name. |
| * vax.md (unnamed patterns): Combine several reversed branch patterns |
| into one, using match_operator with relational_op and "%C". |
| |
| * optabs.c (expand_binop): Handle multi-word addition and subtraction. |
| |
| * Makefile.in (install-gnulib): Use RANLIB_TEST. Use libg_dir. |
| (libg_dir): New customization variable. |
| |
| * assert.h (__assert): Use standard GNU format for error messages. |
| |
| Tue Jan 1 21:25:00 1991 Richard Kenner (kenner at vlsi1) |
| |
| * reload1.c (eliminate_regs, case PLUS): Always move constant to the |
| outside of a PLUS expression. |
| |
| Tue Jan 1 11:45:22 1991 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * ecoff-cmp: Specify `c' in option to tail. |
| |
| * stor-layout.c (layout_record, layout_union, layout_type): |
| Use ROUND_TYPE_ALIGN and ROUND_TYPE_SIZE to compute |
| alignment and size of records, unions and arrays. |
| * ROUND_TYPE_ALIGN: New. Args are type, spec'd align, other min align. |
| * ROUND_TYPE_SIZE: New. Args are type, size of contents, align. |
| |
| * reload1.c (emit_reload_insns) [PRESERVE_DEATH_INFO_REGNO_P]: |
| Scan output and output-address reloads together. |
| Check for matching hard reg. |
| |
| * config.gcc: Set proper shell vars in big dispatch. Not `machine'. |
| (i386-isc): New alternative. |
| |
| Tue Jan 1 08:29:49 1991 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reorg.c (update_block): Turn bb_tick update back on; it is needed, |
| after all. |
| |
| Mon Dec 31 18:12:07 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * genattrtab.c (write_test_expr, case EQ_ATTR): Use correct expression |
| number for attribute value. |
| |
| * cse.c (cse_insn): Use single_set when looking for an insn that sets |
| cc0 followed by one that no longer does. |
| |
| * recog.c (find_single_use): If the next insn after one that sets |
| cc0 is not an INSN or JUMP_INSN, return 0; don't blow up on a NOTE. |
| |
| * emit-rtl.c (emit_insn_before, emit_insn_after, emit_insn): Return |
| something sensible if a SEQUENCE of length zero was passed. |
| We no longer make a SEQUENCE with XVEC == 0, so don't test for it. |
| |
| * reload1.c (emit_reload_insns): Handle gen_move_insn returning |
| no insns (occurs on RT for dummy registers). |
| |
| * rtl.h (reg_cc0_rtx, find_cc): No longer needed. |
| * emit-rtl.c: Likewise. |
| * conditions.h: Entire file is #ifdef HAVE_cc0. |
| * final.c (CC_STATUS_INIT): Make a null default #ifndef HAVE_cc0. |
| (cc_status): No longer exists #ifndef HAVE_cc0. |
| (final_scan_insn): Do CC processing only #ifdef HAVE_cc0. |
| (alter_cond): Only exists #ifdef HAVE_cc0. |
| * genemit.c (gen_exp): No longer have CC0_REGNUM or reg_cc0_rtx. |
| * genoutput.c (main): Include insn-config.h before conditions.h. |
| * reorg.c: Likewise. |
| * jump.c (rtx_equal_for_thread_p): Remove reference to CC0_REGNUM; |
| we'll have to do this optimization some other way later. |
| * tm-a29k.h (NOTICE_UPDATE_CC): Deleted. |
| |
| Mon Dec 31 14:44:31 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * reload.h (enum_reload_when_needed): |
| New alternatives RELOAD_FOR_OUTPUT, RELOAD_FOR_INPUT. |
| * reload1.c (choose_reload_regs): Use those when appropriate. |
| (mark_reload_reg_in_use): Record this usage specially. |
| (reload_reg_free_p, reload_reg_free_before_p): Handle this usage. |
| (reload_reg_reaches_end_p): Likewise. |
| (emit_reload_insns): Treat RELOAD_FOR_INPUT like RELOAD_OTHER. |
| |
| * i386.md (push for SFmode): Operand of fst was missing. |
| |
| Mon Dec 31 08:50:17 1990 Craig Burley (burley at pogo.ai.mit.edu) |
| |
| * stor-layout.c (layout_type): For ARRAY_TYPE case, don't try |
| and compute a size if there is no TYPE_MAX_VALUE for the index. |
| * tree.c, tree.h (build_index_2_type): New function, like |
| build_index_type except it accepts the low value as an arg instead |
| of assuming 0. |
| |
| Mon Dec 31 08:09:10 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-typeck.c (c_expand_return): Handle case when we try |
| to return a void value (such as a void function call) in a |
| function returning void, and there are cleanups to run. |
| |
| Sun Dec 30 21:08:32 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * tm-a29k.h (TARGET_VERSION): Can't use target_flags since we can |
| be called from gcc.c. |
| |
| * tm-rs6000.h (REG_ALLOC_ORDER): Put r12 after r13; it might be |
| holding a DImode value and so might be very expensive (we won't |
| worry about TImode). |
| |
| * rs6000.md (subtract patterns): Fix incorrect operand number in %I. |
| (movti): Disallow indexed memory operands. |
| |
| * out-rs6000.c (print_operand, case 'm'): Fix typo. |
| (includes_rshift_p): Correctly compute mask. |
| |
| * out-a29k.c (output_operand): Add missing parentheses. |
| (print_operand): Replace if/then/else structure with switch statement. |
| |
| * a29k.md (beq, bne): Try to use NE test whenever possible; it |
| will produce better code if we have bit-tests. |
| |
| Sun Dec 30 12:02:03 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * tm-sparc.h (PRINT_OPERAND): Put 'R' case before REG so that it |
| takes when 'R' is passed in as CODE. Also, handle 'B' letter. |
| |
| * sparc.md: (pattern for converting DFmode to SImode): Second |
| argument to `output_asm_insn' should be `operands', not zero. |
| (tablejump): The jump insn is "jmp", not "jump". |
| (gen_fixtruncdfsi2): operands[2] should get the pseudo, not |
| operands[3] (which is nonexistent). |
| (call): Fix typo which had %o7 being emitted as %o. |
| (various patterns): Fixed places where match_operand had the wrong |
| operand number. |
| |
| Sat Dec 29 17:27:00 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * sparc.md: cc_status no longer handles condition code updates. |
| Instead, condition codes are explicitly set and used via |
| hard register 0. Special attributes specific to condition codes |
| (such as whether conditional branches should test the integer or |
| floating-point condition codes, or that the condition codes cannot |
| be tested for a condition which would test the overflow bit) are |
| handled by encoding the attribute in the mode for the condition |
| code register. |
| (type attributes): type "unary" insns have one input operand (1) |
| and one output operand (0) |
| type "binary" insns have two input operands (1,2) and one output (0) |
| type "compare" insns have one or two input operands (0,1) and no output |
| type "move" and type "arith" have been deleted. |
| (prescan attribute): Deleted. Machine description now puts |
| floating-point zero in registers when needed. |
| (use_cc attribute): Deleted. |
| (fpcc define_delay): No longer depend on "use_cc" attribute. |
| Also, fpcc delay characteristics hold for "fpcc" type insns. |
| (cc attribute): Deleted. |
| (cmpxx patterns): Now written as `define_expand's so we can stow |
| away operands. When the pattern that will use the results of the |
| conditional test is emitted, it can use these operands to figure |
| out the right way to emit the compare. |
| (bcc patterns): Rewritten to emit comparison (based on stowed-away |
| info) before emitting branch. |
| (scc patterns): Handle all the cases with branch-free code. |
| Added new pattern to recognize (x + (i == 0)). |
| (movsi pattern recognizer): Split into two patterns so that e.g. |
| "(set:SI (mem:SI ...) (const_int 5))" is never considered valid. |
| Instead this has to be a two-insn sequence. |
| (mov{hq}i pattern recognizers): Ditto. |
| (movstrsi): Force operands[2] out of memory if it was in memory. |
| ({zero,sign}_extendXY): Now written as `define_expand's instead of |
| `define_insn's for more accurate machine modeling. |
| Added new pattern to optimize bit-field compares. |
| (floatsisf2 patterns): Delete redundant setting of "in_call_delay" |
| attribute. |
| (fix_trunc{sf,df}si2 pattern): Use clobberable register in which |
| the conversion can take place. Used to use %f30,%f31. |
| ({add,sub}di3 pattern): Put explicit clobber of (reg 0) in the |
| pattern. |
| (negdi2 pattern): Ditto. |
| Added new patterns to handle merging of addition/subtraction with |
| condition code testing (with (reg:CC_NOOV 0)). |
| ({and,ior,xor}cbsi3 pattern): Obsolete. Deleted. |
| Added patterns to represent setting of condition codes in addition |
| to performing logical operations. |
| ({neg,abs}df2 pattern): Use `R' print letter to overcome the need |
| to use a C action instead of a simple template. |
| (ash{l,r}{hi,qi}3): Define patterns for shifts on sub-SImode |
| operands. |
| (jump pattern): Use `*' print code to obviate the need for a C |
| action when a template can do. |
| (tablejump pattern): Ditto, with `^' code as well. |
| Deleted `define_split's that were used to handle mem-mem moves in |
| the case of PIC generation. Since all move insns are emitted and |
| maintained as SPARC-valid insns, these should no longer be needed. |
| (various patterns): (HI ...) is spelled (HI:SI ...). Also, use |
| `gen_lowpart' instead of building subregs directly. |
| New `define_split's were added to split scc insns into simpler |
| components which have single-insn templates. |
| Fixed a return peephole when returning a SFmode value (it was |
| missing the "ret"!). |
| Lots of complicated peepholes that brought cc testing and |
| arithmetic operations together were deleted. This is because the |
| combiner should now handle all these cases. |
| |
| * out-sparc.c (sparc_compare_op{0,1}): New global variables. |
| Used to hold the operand(s) to compare insns in lieu of emitting a |
| compare. |
| (reg_or_cc0_operand): Deleted. |
| (normal_comp_operator): New function. |
| (cc_arithop): Now returns 0 for PLUS and MINUS. |
| (cc_arithopn): Now returns 0 for XOR. |
| (gen_compare_reg): New function. |
| (sparc_address_cost): Simplified because it turns out it doesn't |
| matter what is returned for illegitimate addresses. |
| (hard_regno_mode_ok): Updated to use these new #defines. |
| (C_MODES): New #define, for condition code modes. |
| (S_MODES): Ditto, for single-word (and smaller) quantities. |
| (D_MODES): Ditto, for double-word (and smaller) quantities. |
| (T_MODES): Ditto, for tetra-word (and smaller) quantities. |
| (SF_MODES): Ditto, for SFmode quantities. |
| (DF_MODES): Ditto, for SF_MODE, DFmode, SCmode, etc. |
| (TF_MODES): Ditto, for DF_MODE, TFmode, DCmode, etc. |
| (output_floatsi{df,sf}2): Greatly simplified. |
| (output_pic_sequence,output_pic_sequence_2,fp_zero_hook, |
| output_tail_call): Turned off. |
| |
| * tm-sparc.h (ASM_SPEC): Pass `-k' to assembler if compiling PIC. |
| (WORDS_BIG_ENDIAN): Define as 1, not 0. |
| (FIXED_REGISTERS): %f30 and %f31 are now allocatable. |
| (REG_CC0_RTX, CC0_REGNUM): Deleted. |
| (EXTRA_CC_MODES): New modes CC_NOOVmode and CCFPmode. The former |
| is for when the overflow bit it not to be tested; the latter is |
| for when the condition is sitting in the floating point unit. |
| (SELECT_CC_MODE): New macro. |
| (FINAL_PRESCAN_INSN): Deleted. |
| (CC_* macros): Deleted. |
| (PRINT_OPERAND_PUNCT_VALID_P): New valid chars are '#' (for |
| whether to print a noop or not), '*' (for whether to print a ",a" |
| or not), and '^' (for whether to emit code for PIC branch or not). |
| (PRINT_OPERAND{,_ADDRESS}): Replace calls to fprintf by calls to |
| fputs where that is convenient. |
| |
| * expr.h, cplus-dbxout.c: #ifdef BYTES_BIG_ENDIAN should be #if. |
| |
| * reload.c (struct replacement): Add new field subreg_loc. |
| (push_reload): If reloading SUBREG_REG of a paradoxical SUBREG, |
| store the location of the SUBREG in subreg_loc in REPLACEMENTS. |
| (push_replacement): Initialize subreg_loc. |
| (subst_reloads): Don't produce nested SUBREGs; use subreg_loc. |
| |
| * regclass.c (regclass): Handle (set X (op CONST Y)) properly when |
| the modes of operands 0 and 1 are different. |
| |
| Sat Dec 29 16:37:10 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * cccp.c (macroexpand): Test traditional when computing expansion size. |
| |
| * toplev.c (compile_file): |
| If profiling, leave some space after `gcc_compiled.'. |
| * tm-m88k.h, tm-sparc.h, tm-sun386i.h (ASM_IDENTIFY_GCC): Deleted. |
| |
| * reload1.c (emit_reload_insns): Set reg_reloaded_contents, etc, here. |
| (choose_reload_regs): Not here--except for reg_has_output_reload. |
| |
| * c-parse.y (nested_function, notype_nested_function): |
| Use compstmt for body, not compstmt_or_error. |
| |
| * Makefile.in (install-headers): Use basename on |
| * stupid.c (stupid_mark_refs): Really do mark clobbered hardreg |
| live before the insn. |
| |
| Fri Dec 28 05:44:10 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * emit-rtl.c (subreg_lowpart_p): Use correct modes in |
| WORDS_BIG_ENDIAN case. |
| |
| * reload.c (combine_reloads): Don't try to reference |
| insn_operand_constraint for an ASM insn. |
| Fix typo in testing for modified operand. |
| |
| Thu Dec 27 19:02:54 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cse.c (cse_insn): Ensure we invalidate SET_DEST if SET_SRC is a CALL. |
| |
| * cse.c (fold_rtx): Save mode of original first operand in case this |
| is becoming (sign_extend (const_int)). |
| |
| Thu Dec 27 16:15:56 1990 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * m88k.md, out-m88k.c (CCmode): Use it. |
| (emit_bcnd): Avoid loosing when bcnd is changed into sxx. |
| (hi16/lo16): Don't use these to form 16-bit immediate values. |
| Introduce and use %X/%x. |
| (length attribute): Make better use of defaults. |
| |
| * tm-v88r32.h (LIB_SPEC): Goes here rather than in xm-v88r32.h. |
| * xm-*88*.h: Clean these up. Most differences go away by relying |
| on the 88open standards. |
| |
| Thu Dec 27 12:48:26 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * expmed.c (store_bit_field, extract_bit_field): |
| Change #ifdef to #if, testing BYTES_BIG_ENDIAN. |
| |
| Thu Dec 27 07:36:45 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reorg.c (find_end_label): Ignore USE and CLOBBERs when looking for |
| label at end of function. |
| |
| Wed Dec 26 22:35:59 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * emit-rtl.c (sequence_element_free_list, sequence_result): New vars. |
| (restore_emit_status, init_emit): Initialize them. |
| (emit_insn_before, emit_insn_after, emit_insn): Save SEQUENCE in |
| sequence_result. |
| Make these three routines more alike in structure. |
| (start_sequence, end_sequence, push_to_sequence): Cache INSN_LIST pairs |
| in sequence_element_free_list rather than making new ones. |
| (start_sequence): No longer return unused rtx; only one caller |
| needed to be changed (in function.c, see below). |
| (end_sequence): No longer has argument. |
| (gen_sequence): Try obtaining a pre-built SEQUENCE from |
| sequence_result; no longer special-case length 0 vectors. |
| * function.c (fixup_memory_subreg): start_sequence no longer |
| returns an rtx and end_sequence no longer has an argument. |
| * rtl.h (start_sequence): Now void. |
| (push_to_sequence, end_sequence): Define. |
| |
| Wed Dec 26 13:19:40 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * gnulib.c: No longer #undef perform_* if not __GNUC__. |
| (perform_*): Define each if not already def. |
| |
| Tue Dec 25 17:31:17 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * loop.c (get_condition): Rework scan that looks for sets of things |
| being compared to allow intervening insns; check to ensure that |
| they don't set something that we need. Return 0 if the best we can |
| do is find something whose mode is in class MODE_CC. |
| |
| * calls.c (emit_call_1): RETURN_POPS_ARGS now gets the length of |
| arguments on the stack and returns the number of bytes popped by the |
| called function. |
| * output.h (current_function_pops_args): Change description. |
| * function.c (current_function_pops_args): Likewise. |
| (assign_parms): Initialize current_function_pops_args here. |
| (init_function_start): Not here. |
| * tm-*.h (RETURN_POPS_ARGS): Reflect new meaning. |
| (FUNCTION_EPILOGUE): Use new meaning of current_function_pops_args. |
| * out-i386.c (function_epilogue): Likewise. |
| |
| Tue Dec 25 15:52:06 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * gnulib.c (all functions): Support a hook for redefining contents. |
| These hooks are called perform_addsi3, and so on. |
| They are used only if compiling with GCC. |
| |
| * rtlanal.c (single_set): Moved from loop.c. |
| |
| * cse.c (fold_rtx): For a MEM, fold address when looking for constant. |
| (cse_insn): When fetch a constant label from a dispatch, |
| substitute into following tablejump. |
| (find_best_addr): Clear do_not_record before hashing. |
| * jump.c (mark_jump_label): Don't record table-labels on non-jumps. |
| |
| * m68k.md (casesi_2 recognizer): Use register_operand as predicate. |
| |
| Mon Dec 24 17:54:42 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * cse.c (fold_rtx): Handle ADDR_DIFF_VEC like ADDR_VEC, |
| when the index in it is constant. |
| |
| * c-decl.c (start_function): Handle new option -Wmissing_prototypes. |
| (c_decode_option): Likewise. |
| |
| Mon Dec 24 07:21:06 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * rtl.h (reload_completed, reload_in_progress): Now defined here. |
| * output.h (reload_completed): No longer defined here. |
| * emit-rtl.c, optabs.c, recog.c, sched.c, toplev.c, out-a29k.c: |
| Don't define reload_in_progress or reload_completed. |
| * a29k.md, romp.md, rs6000.md: Likewise. |
| |
| * machmode.def: Terminate GET_MODE_WIDER_MODE chains with VOIDmode, |
| not zero. |
| (CCmode): New mode. |
| * machmode.h (enum machine_mode): Includes modes in EXTRA_CC_MODES, |
| if defined. |
| (enum mode_class): New class MODE_CC; delete MODE_FUNCTION. |
| * rtl.c (mode_name): Define to be known size; add names for extra |
| CC modes, if present. |
| (mode_class, mode_size, mode_unit_size, mode_wider_mode): Define |
| to be known size. |
| (init_rtl): Initialize extra CC modes. |
| |
| Sat Dec 22 19:33:54 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * tm-i386v.h (MAXPATHLEN): Define if not already defined. |
| * tm-i386vgas.h: New file. |
| |
| * out-i386.c (print_operand_address): Handle scaled indexing. |
| |
| Sat Dec 22 11:15:03 1990 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * m88k.md, out-m88k.c, tm-m88k.h (swapped cmpsi): Don't rely on |
| NOTICE_UPDATE_CC doing the job. Instead, compliment the swapped |
| compare. Also, make COMPARE SImode. |
| (and/cmpsi/sxx/neg): Add patterns to do this in one instruction. |
| Change sign_extend/sxx to neg/sxx for other cases. |
| (iorsi3/xorsi3): Use alternatives and explicit patterns. |
| (casesi): Make the constant the second operand to cmpsi. |
| (output_and): Must compliment value to use the clr instruction. |
| (output_reg_adjust): Simplify the interface and use TEMP_REGNUM. |
| (TARGET_SWITCHES): Eliminate needless no-* options. |
| |
| Fri Dec 21 05:46:34 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * recog.c (find_single_use{,_1}): New functions. |
| * rtl.h (find_single_use): Declare it. |
| |
| Thu Dec 20 21:27:36 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * optabs.c (init_optabs): Add __ to names of floating compare fcns. |
| |
| Thu Dec 20 18:21:38 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expr.c (expand_builtin, case BUILTIN_FFS): Get mode for arg from |
| tree, not rtx, in case arg was CONST_INT. |
| |
| Thu Dec 20 17:31:46 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-decl.c (init_decl_processing): Don't define `ffs'. |
| |
| Wed Dec 19 16:59:38 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * gcc.c (main): Handle if SIGPIPE not defined. |
| |
| * cccp.c (xmalloc, xrealloc, xcalloc): Don't declare malloc or realloc. |
| |
| Wed Dec 19 06:50:17 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * combine.c (gen_lowpart_for_combine): Avoid making a nested SUBREG |
| when we are being passed a paradoxical SUBREG of MEM. |
| |
| * cse.c (new_basic_block): Compilations spend about 5% of their time |
| in this function so replace loop initializing qty_{first,last}_reg |
| with copy from a larger consec_ints. Only loop over extra entries. |
| (cse_main): Allocate consec_ints to be default size of max_qty large. |
| |
| * reorg.c (get_branch_condition): Fix typos when reversing condition. |
| (condition_dominates_p): Fix typo in comparison. |
| (redundant_insn_p): This function was taking about 4% of the |
| compilation time. Rework so it doesn't split, only looks at resource |
| usage if it finds a matching insn (since it usually won't), and |
| improve code that looks at resources. Now takes about 0.5% of |
| compilation time. |
| (fill_simple_delay_slots): Always call mark_target_live_regs with an |
| active insn; currently being called with a CODE_LABEL. |
| |
| Tue Dec 18 14:08:11 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * out-sparc.c: Fix uninitiated comment. |
| |
| * final.c (end_final): Call strip_off_ending to remove the file |
| name suffix. |
| (final_start_function): Execute SDB_DEBUGGING_INFO code only if |
| generating SDB symbol info. |
| |
| * Makefile.in (cccp.o): Depend on gcc. |
| |
| * tm-sparc.h, xm-sparc.h: Make this machine big-endian. |
| |
| * expr.c (expand_builtin): Pass correct arguments to gen_cmpstrsi4. |
| |
| * recog.c (nonmemory_operand): Reject reg whose class is NO_REGS. |
| |
| * c-decl.c (finish_struct, grokdeclarator): |
| Strip NON_LVALUE_EXPR more than once. |
| |
| * combine.c (combine_instructions): Check that a jump insn uses CC0 |
| before trying to combine it with an insn that sets CC0. |
| |
| * cplus-decl.c, cplus-search.c, gcc.c, objc-actions.c, rtl.c, stmt.c, |
| symout.c, toplev.c: Use xmalloc instead of malloc. |
| |
| * cccp.c (do_include): Check for truncation of precompiled file name. |
| |
| Mon Dec 17 16:53:46 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-typeck.c (build_binary_op_nodefault, build_conditional_expr): |
| Fix indentation. |
| * reload1.c (choose_reload_regs): Fix indentation. |
| (gen_input_reload): Fix typo in comment. |
| |
| * reload.c (find_reloads): Call abort when the last operand is |
| marked commutative, to make it easier to find this error. |
| |
| * rtlanal.c (refers_to_regno_p): Don't crash if X is 0. |
| |
| Mon Dec 17 15:29:34 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * local-alloc.c (combine_regs): No need to see if suggested hard reg |
| is suitable; if it isn't, it won't end up being used. Existing tests |
| were too conservative. |
| |
| * jump.c (delete_jump): When searching for the SET of the condition |
| codes for a jump insn, give up if we hit a SEQUENCE. |
| |
| Mon Dec 17 02:14:06 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-typeck.c (c_size_in_bytes): New function. |
| (pointer_int_sum, pointer_diff): Use that. |
| (pointer_diff): Handle warn_pointer_arith. |
| |
| Sun Dec 16 22:27:11 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-decl.c (start_decl): Ignore with error any init for a parm. |
| (finish_decl): Likewise. |
| |
| Sun Dec 16 01:02:57 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * jump.c (rtx_equal_for_thread_p): Treat the special CC register as |
| equivalent for the two threads we are looking at. |
| |
| * combine.c (try_combine): Fix typo in loop over I1 with PARALLEL |
| body. Also, don't test HARD_REGNO_MODE_OK for hard registers we are |
| thinking about combining. This screws up using registers to |
| represent the condition codes, and probably doesn't save anything in |
| the general case. |
| |
| * expmed.c (expand_and): Comment says that result is always stored |
| in target, so the code now does this. |
| |
| Sat Dec 15 18:09:46 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * loop.c (get_condition): Try a little harder to find the setter of |
| the register used in a conditional test. On the SPARC it is vital |
| to either find the setter of the register used for the condition |
| codes or for this function to return 0. Also, have test for |
| non-NULL, matching `set' govern both normal and reversed cases of |
| comparisons. |
| |
| * jump.c (jump_optimize): When moving USE insns from before jumps to |
| after BARRIERs, put the label for the redirected jump after the |
| BARRIER instead of just before the PREV_INSN of the original target. |
| This gets around problems when there are NOTEs between the BARRIER |
| and the original target. |
| |
| Sat Dec 15 10:16:29 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * sparc.md (cmpdf,cmpsf): No longer a define expand. Now depends |
| on fp zero being loaded into a register. |
| (tstsi,tstdf,tstsf): Deleted. |
| (seq,sne): Fail if we are not testing operands of integer mode. |
| (movsi): Split recognizers into two parts. The first handles |
| [reg,mem,zero] <=> [reg,mem]; the second handles [reg,const] => |
| [reg]. |
| (adddf,subdf,negdf): Simplify output routines using 'R' as an |
| output letter. |
| (tail_call): Turn this off. It is never used, and it depends on |
| routines which are about to become broken. |
| (various places): Add USE_CC attribute where appropriate. |
| (various places): Change (use (reg:SI 0)) to (clobber (reg:SI 0)) |
| and delete CC_CLOBBER attribute from the pattern. |
| * out-sparc.c (move_operand): No longer recognize certain |
| immediates as a `move_operand'. |
| (move_reg_or_immed_operand): New recognizer for immediates no |
| longer recognized by `move_operand'. |
| (output_pic_sequence*): Turned off. |
| (sparc_address_cost): Simplified, since the value returned is not |
| used if the address is not legitimate. |
| (emit_move_sequence): Use `gen_lowpart' instead of building |
| SUBREGs explicitly. |
| (make_f30_contain_zero): Deleted. |
| (output_tail_call): Turned off. |
| * tm-sparc.h (PRINT_OPERAND): Recognize 'R' code letter, which |
| means print the name of REGNO (X)+1. No longer recognizes the 'G' |
| letter. |
| (PRINT_OPERAND,PRINT_OPERAND_ADDRESS): Replace various calls to |
| fprintf with calls to fputs or fputc. |
| (FINAL_PRESCAN_INSN): No longer defined. |
| |
| Sat Dec 15 14:37:51 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * recog.c (offsettable_address_p): Check validity in narrower modes. |
| |
| Sat Dec 15 11:21:55 1990 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * syms.h sdbout.c (T_VOID): Ensure that T_VOID is provided a |
| default meaning if <syms.h> is used. |
| |
| Fri Dec 14 14:39:10 1990 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * m88k.md (increment and test peephole): Updated so it would apply |
| with the new method for doing cmpsi/bxx. |
| * m88k.md (function units): Replace decode with alu and update |
| accordingly. |
| * out-m88k.c (emit_test): Add a mode parameter. |
| * tm-m88k.h (GO_IF_LEGITIMATE_ADDRESS): Constrain how the arg |
| pointer can be used. |
| |
| Fri Dec 14 06:48:07 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expr.c (convert_move): Add missing argument to some recursive calls. |
| |
| * jump.c (invert_jump): Pass new label to recursive call. |
| |
| * expr.h (setcc_gen_code): Replaces setcc_gen_fctn; stores insn_code. |
| (expand_and, emit_store_flag, label_rtx): Add definitions. |
| (get_condition, compare_from_rtx): Likewise. |
| * rtl.h (STORE_FLAG_VALUE): Provide a default value of 1. |
| (reg_set_last): Add definition. |
| (const_true_rtx): New variable. |
| * cse.c: Remove defaulting of STORE_FLAG_VALUE from here. |
| (const_true_rtx): Remove static version; now global. |
| * emit-rtl.c (const_true_rtx): Define here. |
| (gen_rtx): Return const_true_rtx for CONST_INT of STORE_FLAG_VALUE. |
| (init_emit_once): Initialize const_true_rtx. |
| * expmed.c (emit_store_flag): Rewritten. Is passed the operands |
| to compare in addition to the compare operation and emits both the |
| comparison and the store-flag insn. |
| Handles special-case of testing for A < 0 and A >= 0. |
| If result is constant, just return it. |
| Accepts an argument saying how to normalize the result and does |
| appropriate normalization. |
| Give preference to using the sign bit rather than the low-order bit. |
| Allow sxx insns to fail. |
| If don't have seq or sne insns, can sometimes do with abs. |
| * expr.c (expand_expr, case COND_EXPR): For X ? A + 1 : A, only |
| do store_flag if it is cheap. |
| (do_jump): True comparisons return STORE_FLAG_VALUE, not 1. |
| (compare_constants): Correctly handle unsigned comparisons. |
| Return STORE_FLAG_VALUE, not 1, for true comparison. |
| (compare_from_rtx): New name for compare1. |
| Accept size and alignment, for BLKmode. |
| No longer statuc. |
| (compare, compare_from_rtx): No need to pass forward and reverse codes; |
| can trivially derive the reverse code from the forward one. |
| All callers changed. |
| If one operand is constant, make it the second one. |
| (compare): Let compare1 do most of the work. |
| (do_store_flag): Rewritten, now lets emit_store_flag do most of |
| the work. |
| Handles the special-case of comparing a single bit with zero., |
| Add additional argument ONLY_CHEAP; if non-zero, fail if it looks like |
| this will be an expensive operation; all callers changed. |
| If it looks like it will be possible to do a store-flag operation, |
| call emit_store_flag; if it can't do it, emit as assignments and a |
| jump. If it doesn't look possible to do a store-flag operation, return |
| zero before expanding anything. |
| * final.c: (final_scan_insn): Don't check STORE_FLAG_VALUE; if the |
| insn doesn't exist, we won't try to change it. |
| * genemit.c (gen_exp): Use const_true_rtx when appropriate. |
| * genrecog.c (add_to_sequence): Likewise. |
| (try_merge_1): Two nodes aren't identical if they are to test |
| different modes or if they have different values of EXACT. |
| * integrate.c: Don't supply a default value for STORE_FLAG_VALUE here. |
| * jump.c: Now includes expr.h (for emit_store_flag and get_condition). |
| (jump_optimize): Split optimization that made store-flag insn |
| into three separate optimizations, the first two of which are useful |
| even in the absence of store-flag operations. |
| (can_reverse_comparison): Set and use of cc0 must be immediately |
| adjacent. |
| (mark_jump_label): Abort if LABEL_REF codesn't contain a CODE_LABEL. |
| Consider two labels adjacent after reload if separated by just USE or |
| CLOBBER insns. |
| * loop.c: Now includes real.h. |
| (get_condition_for_loop): New function. All callers of get_condition |
| in this file now call this function. |
| (strength_reduce): no_labels_between_p now skips FROM. |
| (get_condition): No longer static. |
| Refine cases when we can't reverse a comparison operation. |
| * optabs.c (init_optabs): Initialize and define setcc_gen_code |
| instead of setcc_gen_fctn. |
| * rtlanal.c (no_labels_between_p): Skip FROM, like as ..._between_... |
| functions do. |
| (no_labels_between): Deleted. |
| (reg_set_last, reg_set_last_1): New functions. |
| * Makefile.in (jump.o): Now include expr.h. |
| (loop.o): Now includes real.h. |
| |
| * c-tree.h (int_ftype_cptr_cptr_sizet, ptr_ftype_ptr_cptr_sizet): |
| New names. |
| |
| * alliant.md, i386.md, m68k.md, m88k.md, ns32k.md, sparc.md: Add mode |
| to comparison operators (EQ, NE, etc.) to agree with the mode of the |
| destination. |
| * out-m88k.c (emit_test): Likewise. |
| |
| Fri Dec 14 00:12:46 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-decl.c (finish_struct): Strip NON_LVALUE_EXPR from field width. |
| |
| Thu Dec 13 13:10:47 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * cplus-init.c (expand_vec_init): Add missing arg to |
| expand_exit_loop_if_false. |
| |
| * config.gcc (tron): Alias for gmicro. |
| |
| * c-decl.c (int_ftype_cptr_cptr_sizet): Variable renamed. |
| (ptr_ftype_ptr_cptr_sizet): Likewise. |
| |
| * gcc.c (default_compilers): Handle .C. |
| |
| * Makefile.in (enquire.o): Add -I. so can find stddef.h. |
| (install-cross): Install cc1obj like the others. |
| |
| * Makefile.in (gnulib.target): Renamed from gnulib. |
| (gnulib): Renamed from tmpgnulib. Rename that file in this rule. |
| Also delete stamp-gnulib2 here. |
| (gnulib.portable, gnulib.convert): Input now is named gnulib. |
| (GNULIB_TARGET, GNULIB2_TARGET): Define these vars (already in use). |
| (gnulib2.target): Renamed from gnulib2. |
| (gnulib2): New rule, alias for gnulib2.target. |
| |
| * local-alloc.c (local_alloc): Cast an enum used as index. |
| * optabs.c (emit_indirect_jump): Likewise. |
| * reload1.c (choose_reload_regs): Likewise. |
| |
| Thu Dec 13 12:38:31 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expmed.c (store_bit_field): Verify that operand 1 of movstrict |
| satisfies its predicate. |
| |
| Wed Dec 12 17:26:21 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * gvarargs.h: Avoid duplicate inclusion using _VARARGS_H. |
| |
| Wed Dec 12 14:11:30 1990 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * tm-m88k.h, out-m88k.c, m88k.md: Eliminated the fixed condition |
| code register. As a temporary measure, NOTICE_UPDATE_CC is used |
| to track swapped cmpsi cases. |
| |
| * m88k.md (shift patterns): Deal with TARGET_*_LARGE_SHIFT |
| uniformly with define_expand. Make gen_lshlsi3 generate ASHIFT |
| and eliminate the optimization patterns using ASHIFT. Eliminate |
| other optimization patterns that will be handled by combine. |
| |
| Tue Dec 11 22:13:48 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * expr.c (convert_move): With slt, handle dest that's invalid. |
| |
| * stmt.c, tree.h (stmt_nesting): |
| Typedef deleted; use `struct nesting *'. |
| * stmt.c (expand_start_cond): If exitable, make an exit label. |
| |
| Tue Dec 11 21:28:56 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * combine.c (subst, case SUBREG): Update TO for earlier |
| changes so we can always detect (subreg (mem ...)). |
| |
| Tue Dec 11 10:56:53 1990 Craig Burley (burley at pogo.ai.mit.edu) |
| |
| * stmt.c (expand_start_loop{,_continue_elsewhere}): Return pointer |
| to nesting structure (new type stmt_nesting). |
| (expand_exit_loop{,_if_false},expand_continue_loop): Accept pointer |
| to nesting structure, substitute loop_stack if 0 (same behavior as |
| before when there was no argument), so F90 CYCLE and EXIT statements |
| (like C's continue and break stmts) can refer to other than the |
| innermost loop. |
| (expand_start_cond): Uses new names for if-related labels that |
| reflect addition of "elseif" call, and sets endif_label to whatever |
| exit_label gets set to (so we don't generate two identical labels |
| for languages from which if is exitable via expand_exit_something). |
| (expand_start_elseif): New function, used by Fortran. |
| (expand_start_else): Moved above _end_cond so these four functions |
| appear in the order they get called; uses new names, and fills in |
| only endif_label if needed, not exit_label. |
| (expand_end_cond): Handles end of any if, not just if-without-else. |
| Generates both labels for next else/elseif pending (there was none) |
| and the endif itself, if they exist (and there will always be at least |
| one). |
| (expand_end_else): Gone, call expand_end_cond instead. |
| * c-parse.y, cplus-parse.y, objc-parse.y: Pass new 0 argument to |
| expand_..._loop_... to indicate the innermost loop; call |
| expand_end_cond instead of expand_end_else. |
| * tree.h: Typedef for stmt_nesting returned by expand_start_loop... |
| and change their return types accordingly. |
| |
| Mon Dec 10 06:59:14 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * combine.c (check_asm_operands): Delete from here. |
| * recog.c (check_asm_operands): Move to here; no longer static. |
| (validate_change): Don't assume change is valid is asm_noperands >= 0. |
| If recog_memoized returns < 0, accept change if asm_noperands >= 0 |
| and check_asm_operands returns non-zero. |
| (apply_change_group): Likewise. |
| (validate_replace_rtx_1): Swap operands on commutative operation |
| if first is constant. |
| Use plus_constant to simplify a PLUS with CONST_INT as second operand. |
| |
| * reload.c (find_equiv_reg): We must have a stable SP if GOAL is |
| a MEM that uses SP. |
| |
| * combine.c (try_combine): Don't do anything if I2 or I1 |
| has an ASM_OPERANDS and CLOBBERS; we'll need those clobbers |
| and it is too messy to try to get things set up correctly. |
| |
| Sun Dec 9 22:07:41 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * cccp.c (collect_expansion): Don't check for /* */ concat here. |
| (macroexpand): Always use raw arg if traditional. |
| |
| * c-parse.y (unary): Mark address of label as constant. |
| |
| Sun Dec 9 14:45:34 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-class.c (propagate_basetype_offsets): Take effect on ASSOC |
| before recursive calling. |
| (finish_struct): Call `layout_decl' with zero for KNOWN_ALIGN |
| when laying out TYPE_DECL. |
| * cplus-tree.c (assoc_value): Change recursion condition to compare |
| ASSOC_VALUE (assoc) against TYPE_MAIN_VARIANT (type) instead of just |
| against type. |
| |
| Sat Dec 8 10:40:00 1990 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * m88k.md (attributes): Reorganize and include a block diagram. |
| Make better use of defaults. |
| * m88k.md (peephole), out-m88k.c, tm-m88k.h (short_branch): Add |
| the sparc peepholes for changing bsr/br into bsr.n/addu or |
| bsr.n/subu. Install the length attribute for this. Requires the |
| use of `def' to accomodate broken assemblers in the bsr.n/addu |
| case. |
| |
| Fri Dec 7 06:12:43 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reorg.c (find_end_label): Increment usage count of label we return |
| so we know it won't go away. |
| (dbr_schedule): Decrement count of end label and delete it if dead. |
| |
| Wed Dec 5 17:36:23 1990 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * m88k.md: Add instruction attributes for scheduling and delay |
| slot information. |
| * m88k.md (addsi pattern): Adding large constants does arise. |
| (udivsi pattern): Wrong predicate. |
| * tm-m88k.h, out-m88k.c (NOTICE_UPDATE_CC): Do so using |
| attributes. |
| |
| * make-m88k, make-m88kdgux: Say how to create m88k-trace.asm. |
| |
| Wed Dec 5 13:52:16 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * optabs.c (expand_binop): Support insn_before == 0. |
| |
| * function.c (optimize_bit_field): Fix wrong arg to validate_change. |
| |
| * Makefile (includes): Export LIB. |
| |
| Wed Dec 5 13:31:57 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * combine.c (try_combine): Don't discard CLOBBERs from an insn |
| with ASM_OPERANDS. |
| |
| Tue Dec 4 16:12:21 1990 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * tm-m88k.h, out-m88k.c, m88k.md: More cleanups: introduce |
| POWER_OF_2 for tests (x && (x & (x-1) == 0); rename predicate |
| functions *_p instead of *_operand; cleanup addsi3 insns; simplify |
| udivsi3 insns; simplify memory shift insns; make LOW_SUM and HIGH |
| SImode instead of VOIDmode; add a predicate to the increment and |
| test peephole insn; deal with setting SFmode to zero; delete bogus |
| pattern for divide-by-power-of-2. |
| * make-m88k, make-m88kdgux: dg88k-trace.asm is now m88k-trace.asm. |
| Move movstr-m88k.sh to config/m88k-movstr.sh. |
| |
| Mon Dec 3 19:08:03 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * Makefile.in (gnulib2.ready): New target. |
| (stamp-gnulib2): Depend on that. |
| Avoids recompiling gnulib2 each time cc1 changes. |
| |
| Mon Dec 3 16:17:56 1990 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * tm-m88kdgux.h, xm-m88kdgux.h (SEPARATE_AUX_OUTPUT): Should be in |
| xm-m88kdgux.h. |
| * tm-m88k.h, out-m88k.c, m88k.md: Eliminated the fixed literal |
| synthesis register. Reworked the addressing method to be like the |
| sparc (uses HIGH and LO_SUM). Numerous cleanups. These changes |
| are based on work done by Steve Chamberlain (steve@cygnus). |
| * tm-m88k.h, out-m88k.c (BLOCK_PROFILER, FUNCTION_BLOCK_PROFILER): |
| Implemented. |
| |
| Mon Dec 3 15:19:04 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * cccp.c (special_symbol): Use time_t as type of t. |
| |
| * m88k-movstr.sh, m88k-trace.asm, va-m88k.h: New files. |
| |
| * gcc.c: Don't define R_OK, etc. if already defined. |
| |
| * out-sparc.c (finalize_pic, emit_move_sequence, output_arc_profiler): |
| Finish change to emit HIGH and LO_SUM as Pmode instead of VOIDmode. |
| |
| Sun Dec 2 22:13:53 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * config.gcc (tower): New alternative. |
| (mips-news): Adapt for version 2. |
| |
| * tm-tower.h, tm-tower-as.h, xm-tower.h: New files. |
| |
| Sun Dec 2 17:47:28 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reload1.c (eliminate_regs, case ASM_OPERANDS): Fix typo in testing |
| for changed vector. |
| |
| * out-rs6000.c (output_epilogue): Fix typo restoring general registers. |
| (print_operand): Add new option %H. |
| * rs6000.md: Add (clobber (reg:SI 64)) to many patterns even though |
| they don't clobber MQ to allow combining to work well. This will be |
| removed once combine knows how to add clobbers when required. |
| Change patterns to reflect new canonicalization rules. |
| Where we have (and (xshift)), add patterns for (zero_extend (xshift)). |
| (andsi3, xorsi3): Fix bug in case where two insns are needed. |
| (moveti): Don't call change_address when in reload. |
| (sign_extend): Add patterns for sign extend preceeded or followed by |
| one of the shifts it will do. Use %H to output the merged shift. |
| |
| * out-romp.c (print_operand): Allow exact_log2 result to be zero. |
| * romp.md: Likewise. |
| * tm-romp.h (CONST_OK_FOR_LETTER): Likewise. |
| |
| * a29k.md (type attribute): Add types for floating-point insns. |
| (in_delay_slot attribute): Update to allow for new types. |
| (function_unit definitions): Add definitions for floating-point units. |
| (andcb*3): Delete obsolete names. |
| (convert insn): Use register_operand instead of gen_reg_operand for |
| floating-point operand. |
| (cpeq, feq, deq, etc): New patterns. |
| (floating-point arithmetic): Add support for 29050 insns and |
| accumulators; indicate function unit usage. |
| (ior/and patterns): Put NOT as second operand. |
| (orn insn): New, for 29050. |
| (load patterns): If using match_operator, make it the highest operand |
| number. |
| (loadm insns): Add workaround for rev A1 bug on 29050. |
| (negsf2, negdf2): Don't use XOR to negate on 29050. |
| (movsf, movdf): Add support for accumulators on 29050. |
| (movsi, movhi, movqi): No need to support special->special copies. |
| Support consthz insn on 29050. |
| (compare, scc, and branch insns): Rework to not use cc0. Use a pseudo |
| register instead. Compare doesn't generate any code, but merely |
| saves the operands. scc and branch then emit the appropriate compare |
| and jump (if branch) insns. |
| (tstsi): Delete pattern; not used when no cc0. |
| (peepholes): Remove peepholes to convert jumps to scc insns; now |
| done in jump.c. |
| * out-a29k.c (a29k_compare_*): New variables. |
| (long_const_operand): Anything with low-order 16 bits zero is not a |
| long constant on the 29050. |
| (accum_reg_operand): New function. |
| (gen_reg_operand): Returns false for accumulator registers. |
| (output_operand): Allow accumulators. |
| (ne_comparison_p, fp_comparison_p, return_peep_operand): Deleted. |
| (fp_comparison_operator, branch_operator): New functions. |
| (output_compare): Deleted. |
| (print_operand): Change meaning of %b and %B. |
| Add new code %J. |
| * tm-a29k.h (TARGET_VERSION): Say if compiling for 29050. |
| (TARGET_FLAGS): Add -29000 to turn off support for 29050; this is |
| still the default. |
| (various register macros): Add support for the floating-point |
| accumulators on the 29050. |
| (CONST_OK_FOR_LETTER): Use 'O' for a constant that can be set using |
| conthz on the 29050; keep old definition for 29000. |
| (STORE_FLAG_VALUE): Now 0x80000000. |
| (ASM_FILE_START): Write ".cputype 29050" when compiling for 29050. |
| |
| * combine.c (subst): Put NOT, NEG, MULT, PLUS, and MINUS as the |
| first operand of commutative operations. Note that NOT used to be |
| put as the second operand but it has always been assumed that |
| MULT would be the first operand in address expressions, so we have |
| to change the previous canonicalization. This is possible now that we |
| have eliminated the andcbm3 operations. |
| * i860.md (andnot): Remove obsolete andcbsi3 name and place NOT |
| as first operand. |
| * m68k.md (fpm*): Delete patterns with MULT as second operand and |
| use "@" construct when possible. |
| * m88k.md (and.c, ior.c): Remove obsolete andcbsi3 and iorcbsi3 names. |
| Delete patterns with NOT as second operand. |
| (xor.c): Rewrite in new canonical form. |
| * mips.md (nor): Rewrite in new canonical form. |
| * pyr.md (bicw): Remove pattern with NOT as first operand, removing |
| obsolete name andcbsi3 in the process. |
| * sparc.md: Remove patterns with NOT as first operand. |
| Remove obsolete names andcbsi3, iorcb3, and xorcbsi3. |
| Rewrite xnor into new canonicalized form. |
| Add mode to HIGH and LO_SUM operations. |
| * vax.md (bic*): Remove obsolete andcbm3 names. |
| Put NOT as first operand when both generating and recognizing RTL. |
| (jlbc): Rewrite with NOT as first operand. |
| |
| Sun Dec 2 17:08:16 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * m68k.md (recognizer for casesi_2): Handle ASM_RETURN_CASE_JUMP. |
| |
| * stddef.h (ptrdiff_t): Prevent definition, as with size_t. |
| |
| Sat Dec 1 16:31:30 1990 Ron Guilmette (rfg at ncd.com) |
| |
| * dwarfout.c (lookup_filename, dwarfout_finalize): changed from |
| maintaining a linked list of filename entries to maintaining an |
| (expandable) array of filename entries instead. Also, changed |
| code so that *all* filename strings are output (to the .files |
| section of the asm file) in one swell foop just as the asm file is |
| being finalized rather than writing out new filenames one-by-one |
| as they arise (as previously). This circumvents a problem caused |
| by rfg's naive assumption that assemblers kept a stack of prior |
| section names (of depth > 1) which could be successively popped |
| via multiple `previous' directives. For some assemblers, the |
| depth of the stack is only 1 and they can get confused if you do |
| two (or more) `previous' directives in a row. Anyway, it is no |
| longer either necessary or useful to do that, so who cares. |
| |
| * dwarfout.c: added code to output newlines to the asm file just |
| prior to each and every change of section (for better readability |
| of the asm files). |
| |
| * dwarfout.c: changed code so that if DWARF_DESCRIBE_USED_EXTERNS |
| is defined, it forces DWARF_LOCATION_ATTRIBUTES to also be defined. |
| |
| * dwarfout.c: changed code so that if DWARF_LOCATION_ATTRIBUTES |
| is defined, it forces DWARF_DESCRIBE_FILES to be defined (to `1'). |
| |
| * dwarfout.c: changed code so that if DWARF_DESCRIBE_FILES is not |
| already defined (in the user's tm.h file) it will automatically be |
| defined (by default) to `1'. Also changed all instances of |
| `#ifdef DWARF_DESCRIBE_FILES' to `#if DWARF_DESCRIBE_FILES'. |
| The user must now intentionally *disable* this feature (by |
| defining DWARF_DESCRIBE_FILES to `0' in his tm.h file) if he |
| wishes to have the additional information about files suppressed. |
| |
| * dwarfout.c: changed comments relating to optional defines for |
| extended GNU DWARF features to include more information and to |
| add some additional clarity. |
| |
| Sat Dec 1 16:00:34 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * combine.c (subst): Call reverse_condition instead of |
| reverse_comparison. |
| We are allowed to reverse floating-point EQ and NE comparisons. |
| |
| * combine.c (subst): Call simplify_and_const_int for all AND |
| and ZERO_EXTEND cases and all cases where we make one of them. |
| Remove all other code in AND and ZERO_EXTEND cases. |
| (simplify_and_const_int): Rewritten to follow a consistent model |
| of tracking what AND's need to be done and which bits are not |
| significant. Consistently try a ZERO_EXTEND for all cases where |
| the result is an AND with a mode-wide mask. Move all remaining |
| cases from AND any ZERO_EXTEND cases from subst. |
| |
| Sat Dec 1 09:13:17 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-tree.h (lang_type): Remove any_assigns_this, |
| none_assigns_this from type_flags. |
| * cplus-decl2.c (get_temp_name): If the initializer is a |
| pointer to zero, cache it in EMPTY_TABLE. |
| (finish_builtin_type): New function, to factor common code |
| arising from building internal structures. |
| * cplus-decl.c (init_decl_processing): Call it. |
| |
| Fri Nov 30 10:39:04 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-decl.c (finish_function): Use CLASSTYPE_ASM_WRITTEN instead |
| of TREE_USED to indicate that we need debugging info for |
| TTYPE. |
| Note that nobody ever sets EXTENDED_DBX_DEBUG. For now, |
| change to test DBX_DEBUG. For later, change everything to |
| key off of EXTENDED_DBX_DEBUG. |
| Also, set `warn_return_type' to one always, since this warning |
| is too valuable to lose. |
| * cplus-tree.c (lang_output_debug_info): Don't test TREE_USED. That |
| field is already used by other routines, and we have all we need now |
| in CLASSTYPE_ASM_WRITTEN. |
| * cplus-dbxout.c (dbxout_type_method_1): Handle const, |
| volatile, and const/volatile member functions. |
| |
| Fri Nov 30 04:51:46 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * combine.c (reg_last_set_value): New variable. |
| (combine_instructions): Allocate and initialize it. |
| (record_dead_and_set_regs): Set reg_last_value to source |
| of assignment; clear it for a CLOBBER or partial assignment. |
| (subst): Use reg_last_set_value instead of interpreting the |
| insn in reg_last_set as if it was a single SET. |
| |
| * combine.c (gen_lowpart_for_combine): Call gen_lowpart for CONST_INT. |
| When making a new MEM, copy MEM_VOLATILE_P and MEM_IN_STRUCT_P. |
| If cannot recognize the argument, just form a SUBREG; usually, |
| it won't be recognized, but sometimes will allow further |
| simplifications. |
| |
| * regclass.c (reg_scan): Save size of uid map; reallocate if |
| we have more registers than we allocated. |
| Leave some extra room in map. |
| |
| * stmt.c (emit_case_nodes): Supply missing argument to emit_cmp_insn. |
| |
| * fold-const.c (decode_field_reference): Add missing arg declaration. |
| |
| * expmed.c (store_bit_field): Add missing last argument to |
| recursive call. |
| |
| * cse.c (cse_insn): Remove extra arg passed to rtx_equal_p. |
| |
| * Makefile.in (proto): Make protoize.1 and unprotoize.1. |
| (protoize.1, unprotoize.1): New targets. |
| (install_man): Install protoize.1 and unprotoize.1./ |
| * proto-unproto.1: New file. |
| |
| * loop.c (scan_loop): Properly set SET_SRC in movables entry for |
| MOVE_INSN == 1 and CONSEC > 0 case. |
| (force_movables): Don't look at SET_SRC when CONSEC > 0. |
| |
| * expr.c (expand_expr, case ARRAY_REF): Ensure TYPE_POINTER_TO |
| gets initialized after we build a variant type. |
| |
| Fri Nov 30 00:35:06 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * m68k.md (ashr of 16 to 24 bits): Use extl, not extw. |
| |
| Thu Nov 29 21:41:03 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * tm-vax.h (BLOCK_PROFILER, FUNCTION_BLOCK_PROFILER): New macros. |
| |
| * gcc.c (add_prefix): Add new element, don't replace old first elt. |
| |
| * dwarfout.c (dwarfout_finalize): Go to DEBUG_SECTION first thing. |
| |
| Thu Nov 29 17:50:43 1990 Richard Kenner (kenner at vlsi1.ultra.nyu) |
| |
| * stmt.c (expand_end_loop): Stop looking for branch to the loop |
| exit when we hit a NOTE_INSN_BLOCK_{BEG,END}. |
| * jump.c (duplicate_loop_exit_test): Likewise. |
| Also, only copy line-number notes. |
| |
| * integrate.c (expand_inline_function): Call expand_expr for the |
| arguments before allocating maps that are based on register numbers. |
| |
| * loop.c (loop_reg_used_before_p): Accept new argument, SET, to |
| indicate which part of INSN is setting the relevant register. |
| (scan_loop): Pass new arg to loop_reg_used_before_p. |
| |
| * function.c (optimize_bit_field): Don't assume ZERO_EXTRACT can |
| be replaced by MEM; use validate_change to check. |
| |
| * reload.c (find_reloads_toplev): Add missing arg to recursive call. |
| |
| * calls.c (expand_call): Correct two cases of missing mode to gen_rtx. |
| |
| Thu Nov 29 02:42:35 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * version.c: Bump version number to 1.90.04. |
| |
| * toplev.c (rest_of_compilation): If FLAG_PIC is nonzero, emit any |
| special PIC code once we start really compiling a function (i.e., we |
| are not in an inline function). Inline functions cannot |
| meaningfully hold PIC code because there is no notion of position |
| independence in code that isn't really being written down. |
| |
| * Makefile.in: Don't build cplus-cadillac.o by default. Build |
| cplus-edsel.o instead. Until Lucid frees their programming |
| environment, their Cadillac will always be an Edsel to GNUsers. |
| |
| * stmt.c (fixup_gotos): Change loop to run in two passes so that |
| cleanups don't experience a race condition. |
| (expand_cleanups): Replace Nov 5 word-around with consistency check. |
| The same cleanups should never be run twice. |
| |
| * cplus-decl.c (lang_{init,finish}): Move these functions... |
| cplus-lex.c: ...to here. Also, make change to lang_init analogous |
| to Nov 27 change for C compiler. |
| |
| * cplus-decl.c (pushdecl): Don't warn about static/extern conflicts |
| if X is a TYPE_DECL. |
| (build_enumerator): Certain CONST_INT nodes cannot be coopted to be |
| the constant for enumerator. Mark them as non-shareable and don't |
| coopt them. |
| |
| * cplus-decl.c (lang_{init,finish}): Declare these to be void |
| functions to match new tree.h. |
| |
| Wed Nov 28 18:48:33 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reload1.c (eliminate_regs): Convert (subreg (mem)) to (mem) when |
| not a paradoxical SUBREG. |
| |
| Wed Nov 28 17:15:43 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * emit-rtl.c (gen_label_rtx): Clear LABEL_NAME via gen_rtx. |
| |
| Tue Nov 27 21:54:15 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * varasm.c (assemble_external): Never write a .extern for a static |
| name. |
| |
| * recog.c (validate_replace_rtx_1): Handle making a SUBREG of a MEM |
| by trying a new MEM. |
| |
| Tue Nov 27 11:54:28 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-lang.c, objc-action.c: Include input.h. |
| (lang_init): Call check_newline here. |
| * toplev.c (compile_file): Not here. |
| Call lang_init after setting input_filename. |
| |
| * tree.h: Declare numerous functions that the front end must provide. |
| |
| * rtl.h (LABEL_REFS): Use operand 5, same as LABEL_NUSES. |
| |
| * toplev.c (warn_return_type, W_options): Handle -Wreturn-type here. |
| * c-decl.c: Not here. |
| * flags.h: Declare it here, not in c-tree.h. |
| |
| * gcc.c (pexecute): Wait and retry if fork fails. |
| |
| * expr.c (do_jump): Pass all args to get_inner_reference. |
| (expand_assignment): Fix typo in arg to get_inner_reference. |
| |
| * tm-hp9k320.h (STANDARD_STARTFILE_PREFIX): Don't alter if already set. |
| |
| Mon Nov 26 18:28:51 1990 Michael I Bushnell (mib at churchy.ai.mit.edu) |
| |
| * cccp.c (handle_directive): Do backslash-newlines inside of |
| strings. |
| |
| Mon Nov 26 15:39:29 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * cccp.c (main): Handle -w. |
| (warning): Do nothing if -w. |
| * gcc.c (compilers): Pass -w to cpp. |
| |
| * c-decl.c (grokdeclarator): Don't discard arg types |
| for prototype even if traditional. |
| |
| Sun Nov 25 20:52:31 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * protoize.c: Undef CHAR_BIT, etc, before including limits.h. |
| |
| * reload1.c (old_asm_operands_vec, new_asm_operands_vec): |
| Type should point to a vector. |
| (Eliminate_regs): For asm_operands, copy the vector properly. |
| |
| Sun Nov 25 20:35:12 1990 Richard Kenner (kenner at vlsi1.ultra.nyu) |
| |
| * jump.c (jump_optimize): Fix typo in stack push combining code. |
| |
| * reload1.c (eliminate_regs): Ensure we share operands 3 and 4 |
| of ASM_OPERANDS operations if they were originally shared. |
| Copy all rtx flags when making a new MEM. |
| (eliminate_regs_in_insn): Initialize for ASM_OPERANDS sharing check. |
| |
| Sun Nov 25 16:37:10 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * Makefile.in (stamp-gnulib2): Don't depend on gnulib2-indirect. |
| |
| * gcc.c (do_spec_1): Handle %W{...}. |
| (default_compilers): Use %W{...} when passing -o option. |
| |
| Sat Nov 24 16:39:56 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * cplus-lex.c (init_lex, do_pending_inlines, reinit_lang_specific): |
| Add conditionals for __GNU_LIBRARY__. |
| |
| Thu Nov 22 13:48:06 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * fold-const.c (optimize_bit_field_compare): Pass additional |
| arg to get_inner_reference; it gets set if something was volatile. |
| (decode_field_reference): New arg PVOLATILEP; passed to |
| get_inner_reference. |
| (merge_component_references): Add pointer to place to store if |
| something is volatile to calls to decode_field_reference; don't |
| do anything if it gets set (this may be very conservative). |
| |
| * stmt.c (expand_end_loop): Skip initial CODE_LABEL at start of |
| loop when looking for qualified conditional exit. |
| |
| * reload.c (push_reload): If (subreg:M1 (reg:M2 ....)) and we |
| have trouble access the register in M1, reload the reg, not subreg. |
| Fix typo in testing for memory. |
| (reload): Force reload of the operand in the above cases. |
| |
| Wed Nov 21 17:39:42 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * loop.c (strength_reduce, combine_givs): Don't penalize |
| non-replaceable givs unless they are user variables; temporaries |
| are probably dead even though we can't prove it. |
| |
| * integrate.c (save_constants): Don't get confused by looking |
| inside CONST_DOUBLE_MEM. |
| Call recursively on what get_pool_constant returned, in case it |
| was itself the address of a pool constant. |
| (copy_for_inline, copy_rtx_and_substitute, restore_constants): |
| Remake CONST_DOUBLE so it gets chained in correctly and we don't use |
| obsolete CONST_DOUBLE_MEM values. Call recusively on operand we are |
| about to pass to force_const_mem; it might have been a case of a |
| constant value being an address of another constant. |
| |
| * loop.c (find_mem_givs): Don't make a DEST_ADDR giv with mult_val == 1 |
| and add_val == 0. |
| (maybe_eliminate_biv_1): Turn off elimination in (compare biv1 biv2) |
| cases; they have problems. |
| |
| Wed Nov 21 16:06:14 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * dwarfout.c (location_attribute): Offset for bitfields is special. |
| |
| * expr.c (get_inner_reference): New arg pvolatilep. |
| (expand_expr, expand_assignment): Use to set MEM_VOLATILE_P. |
| |
| Wed Nov 21 10:34:25 1990 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * stor-layout.c (layout_decl): Record whether a FIELD_DECL is a |
| bit-field and if so its original type. |
| * tree.h (DECL_BIT_FIELD_TYPE): New. |
| * dbxout.c (dbxout_type): Use DECL_BIT_FIELD_TYPE. |
| * dwarfout.c (output_member_die, bit_offset_attribute, |
| bit_size_attribute, member_declared_type): Use DECL_BIT_FIELD_TYPE. |
| * sdbout.c (sdbout_one_type): Use DECL_BIT_FIELD_TYPE. |
| |
| * sdbout.c (DEBUGGER_ARG_OFFSET, DEBUGGER_AUTO_OFFSET): New |
| interfaces to compute the location of arguments and automatic |
| variables. |
| * dbxout.c (DEBUGGER_ARG_OFFSET, DEBUGGER_AUTO_OFFSET): Likewise. |
| |
| * dbxout.c (dbxout_parms): Describe a parameter passed in |
| registers but living on the stack as N_PSYM rather than N_LSYM. |
| These are typically arg_pointer based locations. |
| |
| * out-m88k.c (m88k_debugger_offset): New function. |
| * tm-m88k.h (DEBUGGER_ARG_OFFSET, DEBUGGER_AUTO_OFFSET): Replaces |
| SDB_AUTO_NORMALIZE_OFFSET. |
| * tm-m88k.h (STACK_BOUNDARY): Update to 16 byte aligned stacks. |
| |
| Tue Nov 20 23:48:57 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * dwarfout.c (dwarfout_init): Set stack depth to 1 at start. |
| (output_padded_null_die): New function. |
| (dwarfout_finalize): Use that to ensure length divisible by 4. |
| |
| * ns32k.md (addsi3): Don't use `addr' for very large displacements. |
| |
| Tue Nov 20 05:48:42 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * jump.c (can_reverse_comparison_p): It is safe to reverse an EQ |
| or NE comparison, even if IEEE floating-point. |
| |
| * integrate.h (struct inline_remap): const_*_map now maps registers |
| in calling function, not called function. |
| Add fields to save values recorded from SETs. |
| * integrate.c: Now includes insn-config.h and real.h. |
| (expand_inline_function): New meaning for const_*_map. |
| Don't fill in constant equivalences here; now done in try_constants. |
| Show CALL_INSNs potentialy clobber all hard registers since we |
| now record equivalences for hard registers. |
| (try_constants): No longer need original RTL; all callers changed. |
| Call note_stores to kill any known equivalences for registers changed. |
| Record equivalences for PC, CC0, and registers set by this insn. |
| (subst_constants): No longer need original RTL; all callers changed. |
| Reflect new meaning of const_*_map. |
| Perform more extensive constant folding, basically a subset of |
| fold_rtx in cse.c; specifically, fold the result of comparison |
| operations and IF_THEN_ELSE operations. |
| Record the constant equivalences of SETs, if any. |
| (try_fold_condition, const_equiv, fold_out_const_cc0): Deleted. |
| * Makefile.in (integrate.o): Now includes insn-config.h and real.h. |
| |
| Sat Nov 17 07:48:45 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * local-alloc.c (local_alloc): Don't allocate a reg that wants a |
| class that has only one register; let global-alloc do it so that it |
| can be given a GENERAL_REG if reload needs a spill reg of that class. |
| |
| * regclass.c (regclass, reg_class_record): Count savings in loops as |
| being greater the same way we adjust reg_n_refs for loops in flow.c. |
| |
| * expmed.c (store_bit_field, extract_bit_field): Remove change of |
| Oct 16; it causes problems with long long bit fields. |
| |
| * rtlanal.c (reg_overlap_mentioned_p): If called with a constant, |
| return zero. If called with a MEM, return 1 iff the second arg |
| contains a MEM. |
| * reload.c (push_reload): Call reg_overlap_mentioned_p only if OUT |
| is a MEM and then pass it the address of OUT. |
| |
| * cse.c (cse_insn): Refine when SRC_EQV, SRC, and DEST are added |
| to the hash table. SRC_EQV is not added to the hash table if it |
| is volatile or equal to DEST and similarly for SRC. DEST is not |
| added to the hash table unless either SRC_EQV or SRC is. |
| |
| Thu Nov 15 23:43:20 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-typeck.c (convert_for_assignment): Change warning message. |
| |
| Thu Nov 15 18:44:49 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * stmt.c (expand_end_loop): Generalize code to look for more |
| than one branch to the exit and include unconditional branches |
| to the exit; move the whole range to the end of the loop. |
| * jump.c (duplicate_loop_exit_test): New function. |
| (jump_optimize): Call it. |
| Don't allocate jump_chain until we have finished deleting dead code. |
| Leave some more room in jump_chain. |
| (simplejump_p): Reject if not JUMP_INSN. |
| (delete_insn): If simplejump_p, remove from jump chain. |
| * loop.c (loop_skip_over): Deleted. |
| (scan_loop): No longer call it. |
| * cse.c (predecide_loop_entry): Deleted. |
| (cse_basic_block): No longer call it. |
| |
| Thu Nov 15 18:00:20 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * math-68881.h (HUGE_VAL): Add extra braces for Sun. |
| |
| * stor-layout.c (layout_type): Don't let array have less |
| alignment than its mode calls for. |
| |
| Thu Nov 15 13:05:30 1990 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * sdbout.c (sdbout_parms, sdbout_reg_parms): Reimplemented based |
| on dbxout_parms and dbxout_reg_parms. |
| |
| Wed Nov 14 08:48:43 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * emit-rtl.c (emit_...): All of these now return the last insn |
| emitted; previously some of them returned void. |
| (emit_barrier_before): New function, similar to others. |
| * rtl.h: All emit_... functions now return an rtx; reorder so |
| declarations are in the same order as definitions in emit-rtl.c. |
| |
| * reorg.c (steal_delay_list_from_{target,fallthrough}): Add missing |
| test when checking candidate insn for resource conflicts. |
| |
| Wed Nov 14 07:08:19 1990 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * c-parse.y (pushlevel, compstmt): Place a line note at the first |
| token beginning a block and at the close brace ending a block. |
| These are the conventional locations for SDB and DWARF debugging |
| information. |
| |
| Tue Nov 13 18:16:47 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * function.c (assign_stack_local): If alignment not specified |
| and not BLKmode, use at least word alignment. |
| (assign_outer_stack_local): Likewise. |
| |
| * sparc.md: Turn off patterns that specify no_ov or CC_NO_OVERFLOW. |
| |
| * dwarfout.c (file_attribute): Fix arg to ASM_OUTPUT_DWARF_ATTRIBUTE. |
| (AT_line, AT_file): New definitions. |
| |
| * out-i860.c (output_block_move): Move .Lm%3 down one insn. |
| |
| * c-decl.c (grokdeclarator): -funsigned-bit-field doesn't affect enums. |
| |
| Tue Nov 13 09:28:27 1990 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * gcc.c (default_compilers): Report an error if -C is used without |
| -E. Pass -H to cpp. |
| |
| * sdbout.c (plain_type, plain_type1): save and output the |
| rightmost array dimensions. |
| |
| * syms.h (enum sdb_type): Add T_VOID, equal in value to T_ARG. |
| * sdbout.c (plain_type_1): Use T_VOID for VOID_TYPE and define it |
| to be T_INT if not present in <syms.h>. |
| |
| * sdbout.c (sdbout_toplevel_data): Use abort rather than fatal. |
| |
| Mon Nov 12 08:49:33 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * expr.c (compare): Fix use of GET_MODE_CLASS so we don't abort if |
| MODE is VOIDmode. |
| * optabs.c (init_optab): Call `xmalloc' instead of `malloc'. |
| |
| * out-sparc.c (hard_regno_mode_ok): Change initialization of array |
| to match behavior of Nov 11 change for complex modes. |
| |
| * jump.c (delete_labelref_insn): Chase all LOG_LINKS of insn to try |
| to delete references to LABEL. This is needed for machines like |
| SPARC which use multiple insns to get the value of LABEL into a |
| register. |
| |
| Mon Nov 12 16:07:27 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * machmode.def (SCmode, ...): Class is MODE_COMPLEX_FLOAT. |
| |
| Sun Nov 11 00:27:34 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * tm-i860.h (HARD_REGNO_MODE_OK): Handle values more than 2 regs long. |
| * tm-m68k.h (HARD_REGNO_MODE_OK): Likewise, for d7/a0 boundary. |
| * tm-spur.h (HARD_REGNO_MODE_OK): Likewise, for 31/32 boundary. |
| * tm-*.h (HARD_REGNO_NREGS): Use GET_MODE_NUNITS to handle |
| complex values in fp registers on machines where one reg holds a DF. |
| |
| * sdbout.c (sdbout_one_type): Do nothing for incomplete type. |
| |
| * c-decl.c (duplicate_decls): Warning only when redefining built-in fn. |
| |
| * c-decl.c (init_decl_processing): Use sizetype, not unsigned long, |
| in prototypes for memcpy and memcmp. |
| |
| * c-parse.y (component_decl): Don't read the semicolon here. |
| |
| * toplev.c (compile_file): Reverse top-level decls before output. |
| |
| Sat Nov 10 22:27:47 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * stor-layout.c (layout_type): Use MODE_COMPLEX_{INT,FLOAT}. |
| |
| Sat Nov 10 20:34:55 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reload.c: Provide a default definition of REGISTER_MOVE_COST. |
| |
| Sat Nov 10 01:43:09 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-init.c (emit_base_init): Don't use CLASSTYPE_ASSOC as a list |
| of only immediate basetypes anymore. Use `get_base_distance' to |
| check whether a type is an immediate basetype or not. |
| |
| * stmt.c (expand_return): Don't emit a USE if VAL is a |
| pseudo-register. |
| |
| * integrate.c (function_cannot_inline_p): Call to strcmp for |
| "__builtin_va_alist" must use IDENTIFIER_POINTER not |
| DECL_NAME. |
| |
| * genattrtab.c (check_attr_test): Use XSTR macro instead of |
| XEXP macro in places where strings are used. |
| |
| * tree.c (type_hash_lookup): Have to check TYPE_DOMAIN for non-zero |
| before comparing the equality of the possible lists. |
| |
| * cplus-typeck.c (build_c_cast): Check TREE_TYPE before checking |
| that the TREE_TYPE is an OFFSET_TYPE. |
| |
| * cplus-typeck.c (c_expand_return): Use DECL_RESULT of |
| current_function_decl instead of `result' since `result' might be |
| set to zero. |
| |
| * cplus-decl.c (xref_tag): Fixed typo in setting |
| TYPE_USES_COMPLEX_INHERITANCE. |
| |
| * cplus-tree.c (assoc_value): Changed interface to take COPYING |
| parameter. |
| * cplus-{class,init,search,tree}.c All callers changed. |
| |
| * cplus-typeck.c (build_c_cast): Resolve OFFSET_REFs if the type we |
| are converting to is not an OFFSET_TYPE. |
| |
| Thu Nov 8 15:26:27 1990 Craig Burley (burley at pogo.ai.mit.edu) |
| |
| * tm-*.h: Try to change HARD_REGNO_NREGS, HARD_REGNO_OK, and other |
| macro defs to handle new complex type stuff. Mostly guesswork; needs |
| checking by people who really know each machine. |
| * machmode.def (SCmode, DCmode, XCmode, TCmode): New complex modes. |
| * machmode.h (GET_MODE_ALIGNMENT): New macro from stor-layout.c. |
| * tree.c (build_complex_type): New function. |
| * stor-layout.c (layout_type): Handle COMPLEX_TYPE. |
| * expr.c (compare1, compare, move_block_to_reg, emit_push_insn): |
| Change uses of GET_MODE_CLASS. |
| * optabs.c (expand_binop, expand_twoval_binop, expand_unop): |
| (emit_cmp_insn): Likewise. |
| |
| Thu Nov 8 06:19:57 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * local-alloc.c (no_conflict_p): Initialize *WHERE_DEAD; previously |
| uninitialized. |
| |
| Thu Nov 8 01:08:45 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-parse.y (yylex): Size of wide STRING_CST counted terminator wrong. |
| |
| Wed Nov 7 14:55:38 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * gnulib2.c (L_trampoline): Put it inside a dummy function. |
| |
| * enquire.c: Renamed from hard-params.c; new vers from steven@cwi.nl. |
| Modified to undef CHAR_BIT, etc. if defined in stdio.h. |
| * Makefile.in (enquire): Targets renamed. |
| (enquire.o): Define NO_MEM. |
| |
| Wed Nov 7 14:18:34 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * jump.c (invert_jump): If it is going to fail (i.e., redirect_jump |
| fails), don't invert the jump. |
| |
| * expr.c (expand_expr, case COND_EXPR): Don't accept a hard register |
| as a target if we are going to store into it before testing the |
| condition because that evaluation may involve a subroutine call |
| which might clobber it. |
| |
| * jump.c (delete_jump): reg_set_p should be called with PATTERN (insn). |
| (thread_jumps): Add omitted last argument to rtx_equal_for_thread_p. |
| |
| * reload.c (find_reloads): Only skip insns which set one hard register |
| to another if the cost of doing so is low; if not, there may not be |
| a single insn to do the copy and we may need a reload register. |
| |
| Wed Nov 7 00:01:18 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-parse.y (component_decl_list): Allow missing semi at end. |
| |
| * loop.c (move_movables): When moving and deleting library call, |
| don't be confused if an insn is deleted. |
| |
| Tue Nov 6 20:49:57 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * tm-m68k.h (TRANSFER_TO_TRAMPOLINE): Fix asm syntax. |
| |
| * xm-iris.h (alloca): Delete redundant definition. |
| * tm-iris.h (CPP_SPEC): Define variant symbols starting with _. |
| Define __EXTENSIONS__. |
| |
| * config.gcc (editing .gdbinit): Search current dir, not just srcdir. |
| |
| Tue Nov 6 22:24:09 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expr.c (expand_expr, case COND_EXPR): Generate efficient code for |
| A ? A : FOO and similar. |
| |
| * combine.c (subst): If we have, e.g., (lt CONST FOO), convert it |
| to (gt FOO CONST). |
| |
| * recog.c (comparison_operand): Use comparison_code_p. |
| |
| * genconfig.c (walk_insn_part): Add operand to indicate if PART is |
| going to be used to recognize an insn (as opposed to emitting rtl). |
| If not, ignore CC0. |
| (gen_insn, gen_expand, gen_split, gen_peephole): Add new operand to |
| walk_insn_part calls. |
| |
| * cse.c (find_comparison_args): Correctly compute rtx_code of |
| comparison; if we find another comparison code inside, use it. |
| * loop.c (get_condition): Likewise. |
| |
| * expr.c (expand_builtin): For ffs, don't pass VOIDmode to expand_unop. |
| |
| Mon Nov 5 12:55:00 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * final.c (output_addr_const): Don't print parens for CONST. |
| |
| * reload1.c (choose_reload_regs): Handle case where find_equiv_reg |
| returns a SUBREG. Also, use variable `regno' uniformly throughout |
| code that finds equivalent register. |
| |
| * gnulib2.c (__floatdisf, __fixunssfsi): New functions. |
| (__fixsfdi, __fixunssfdi): New functions. |
| * gnulib.c (__floatsisf, __fixsfsi): New functions. |
| |
| Mon Nov 5 06:37:02 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * fold-const.c (fold, case EQ_EXPR and NE_EXPR): Convert, e.g., |
| (A & 2) == 2 to (A & 2) != 0. This eliminates the need for these |
| patterns in MD files. |
| Detect more general cases of comparing something with itself. |
| |
| Mon Nov 5 00:09:55 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * stmt.c (expand_cleanups): Don't run any cleanup twice. |
| |
| Sun Nov 4 23:49:22 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expr.c (convert_move): Use emit_no_conflict_block when converting |
| SImode to DImode. |
| If have slt insn, emit a compare insn; we must not have a use of |
| cc0 without a set; normally, the compare will be deleted as |
| redundant in final.c. |
| Use shift rather than clear/test/negate for high-order word when |
| doing sign extension. |
| |
| * optabs.c (emit_no_conflict_block): Don't put REG_NO_CONFLICT |
| notes on the trailing copy insn; nobody looks there. |
| |
| * combine.c (try_combine): Don't combine a reg-reg copy if the |
| destination is used in a REG_NO_CONFLICT note. |
| |
| * reload.c (find_equiv_reg): Use true_regnum to support SUBREGs |
| as well as REGs. |
| |
| Sun Nov 4 12:55:03 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * i386.md (extend*): Take out last change. |
| Unix assembler rejects movsx... |
| |
| * expr.c (expand_expr): Special case for ignored volatile |
| failed to return. |
| |
| Sat Nov 3 14:42:34 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expr.c (do_jump, case PLUS_EXPR): Turn off this case; it was a |
| pessimization. |
| |
| Fri Nov 2 01:51:31 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * stmt.c (expand_return): Don't emit a USE if VAL is a |
| pseudo-register. |
| |
| Fri Nov 2 15:30:48 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * gnulib2.c (__builtin_saveregs): Add version for i860. |
| |
| * out-i860.c (output_block_move): Rearrange the copy loop. |
| Now uses two labels and a more complicated lead-in. |
| |
| Fri Nov 2 14:17:24 1990 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * m88k.md (extendsidi2): New define_expand. |
| |
| * out-m88k.c: Converted various constructs to use conventinal |
| formatting. |
| |
| * m88k.md (ext pattern): Must have parens. |
| * m88k.md (mul/div patterns): Added better documentation. Removed |
| unfounded restriction on immediate values. |
| * m88k.md (increment and test peephole): Don't use %L. |
| |
| * out-m88k.c (m88k_layout_frame): Must allocate space for the |
| addressing base register (-mpic). |
| * out-m88k.c (output_tdesc): Use version 2 tdesc with PIC. |
| |
| * tm-m88k.h, tm-m88kdgux.h,: Don't predefine memcpy and others. |
| * tm-m88k.h: Fixes for dwarf. |
| * tm-m88ksvr4.h: Dwarf changes. |
| * xm-m88k.h xm-m88kdgux.h xm-v88r32.h: Update comments. |
| |
| Fri Nov 2 12:30:15 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * jump.c (comparison_dominates_p): Return 1 if codes are the same. |
| (thread_jumps): Use get_label_after. |
| |
| * a29k.md (movdi): Handle CONST_INT as well as CONST_DOUBLE. |
| (comparisons): Fix typo in define_split for floating-point NE. |
| |
| * reorg.c (fill_slots_from_thread): Don't mark as annulled if no |
| delay list. |
| |
| * loop.c: Allow use of any register to store comparison results. |
| (loop_skip_over): Don't treat comparison specially; copy all insns |
| preceeding the jump. |
| (check_for_endtest, other_reg_use_p): Deleted. |
| (can_eliminate_biv_p, eliminate_biv): Deleted; code merged and |
| placed into new maybe_eliminate_p_1. |
| (may_eliminate_biv, may_eliminate_biv_1): New functions; recursively |
| look at all rtx to see if every occurrence of a biv can be |
| eliminated. |
| (check_eliminate_biv): Deleted; callers changed to call |
| may_eliminate_biv. |
| (get_condition): Rework to look into previous insns to find insns |
| that set the first operand of comparison insns. |
| |
| Thu Nov 1 22:07:42 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cse.c (fold_rtx, case COMPARE): Only convert compare to test if |
| HAVE_cc0 is defined. |
| * combine.c (subst): Copy COMPARE case from fold_rtx. |
| Simplify things like (ne (eq FOO BAR) (const_int 0)). |
| |
| Thu Nov 1 18:06:56 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * math-68881.h (HUGE_VAL): Alternate definition for Suns. |
| |
| * config.gcc (sun3, etc.): Assume os4 as default for Sun 3 and Sun 4. |
| |
| * tm-i386v.h (STARTFILE_SPEC, LIB_SPEC): Handle -posix. |
| (CPP_SPEC): New macro. |
| (LIB_SPEC): Handle -shlib. |
| |
| * c-decl.c (init_decl_processing): Make last arg to memcpy and memcmp |
| an unsigned long, to be like size_t. |
| |
| * Makefile.in (hard-params): Depend on gnulib2, not gnulib. |
| |
| Wed Oct 31 22:12:33 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * config.gcc (ultrix): New alternative. |
| |
| * i386.md (extend*): Change opcode to movsx. Was movs. |
| |
| Wed Oct 31 09:41:27 1990 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * m88k.md: Deleted an old pattern for subtracting 0. |
| * m88k.md: Deleted patterns for aligned bit-field insns. |
| * m88k.md: Changed define_expand to define_insn for mulsi3 and |
| umulsi3. |
| * m88k.md: Converted various constructs to use conventional |
| formatting. |
| * m88k.md (mak patterns): Fixed transcription errors. |
| |
| Wed Oct 31 00:05:54 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-decl.c (init_decl_processing): Predefine the ordinary names |
| of alloca, abs, memcpy, etc. |
| |
| * c-decl.c (duplicate_decls): Allow redefining built-in as static, |
| but optionally warn. |
| |
| Tue Oct 30 14:39:17 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-decl.c (finish_function): Use DEFAULT_MAIN_RETURN in `main'. |
| * tm-vms.h (DEFAULT_MAIN_RETURN): Define this. |
| |
| * c-parse.y (yylex): Base is not 8 for just `0'. |
| |
| * cccp.c (do_define): Invert test of compare_defs. |
| |
| * cccp.c (make_definition): Convert newline to newline-newline. |
| |
| * Makefile.in (hard-params): Depend on gnulib. |
| |
| * m88k.md (divsi3): Delete declarations of gen_... functions. |
| |
| Tue Oct 30 14:26:20 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cse.c: Rework handling of comparisons to generalize better to |
| machines that use registers to hold condition code information. |
| (prev_insn_cc0*): Just store last rtx assigned to cc0 in prev_insn_cc0. |
| (find_comparison_args): New function. |
| (fold_rtx): Folded value of cc0 is the value previously stored into it. |
| Rework handling of comparisons: use find_comparison_args to see what |
| is being compared. If they are constants, compute the result of the |
| comparison. If not, see if the two operands are equivalent (only for |
| non FP or non-IEEE FP). Then see if we have already seen a comparison |
| involving these operands that lets us give a value to this comparison. |
| True comparisons return STORE_FLAG_VALUE, not 1. |
| (fold_cc0): Deleted. |
| (predecide_loop_entry): Call cse_insn on a copy of each insn at the |
| loop test to propagate the values of items at the start of the loop. |
| Then use fold_rtx to see if we know the result of the jump. |
| (record_jump_equiv): Use new function find_comparison_args. |
| (cse_insn): Just record value of CC0 if set; don't call fold_cc0. |
| Don't modify PREV_INSN (insn) if INSN is a copy. |
| (cse_main): Initialize const_true_rtx to rtx for STORE_FLAG_VALUE. |
| |
| * jump.c (comparison_code_p, comparison_dominates_p): New functions. |
| (thread_jumps): Use comparison_dominates_p. |
| Remove debugging code. |
| * reorg.c (condition_dominates_p): Use new function |
| comparison_dominates_p. |
| |
| * emit-rtl.c (next_cc0_user): Don't get confused by being call with a |
| copy of an insn; use INSN_UID to check for an insn in a delay slot. |
| |
| * rtl.c (reg_note_name): Add name for new REG_LABEL note. |
| |
| * emit-rtl.c (make_insn_raw): No longer have JUMP_LABEL for INSN. |
| |
| Tue Oct 30 09:26:15 1990 Tom Wood (wood at dg-rtp.dg.com) |
| |
| * Update what strings in files edited so far. |
| * tm-m88k.h, tm-m88kdgux.h, tm-m88ksv4r.h: Introduce VERSION_STRING |
| and VERSION_INFO to more appropriately identify the compiler. |
| |
| * tm-m88k.h (ASM_OUTPUT_OPCODE): Stop processing the opcode if `%' |
| is encountered. |
| * out-m88k.c (print_operand): Add a tab to %L output. Delete |
| unused cases. |
| |
| * m88k.md: Rework the movstrsi pattern and provide call_block_move |
| and call_block_move_loop to support expand_block_move. |
| * out-m88k.c: Rework the block move functions. |
| * make-m88k, make-m88kdgux: Eliminate movstr.h. |
| |
| * m88k.md, out-m88k.c: Eliminate assembler comments. |
| |
| * m88k.md (ashlsi3 ashrsi3 lshlsi3 lshrsi3): Eliminate warnings |
| about out of range shifts. |
| |
| * tm-m88k.h, out-m88k.c: Rename CONDITION_CODE_REGNUM CC0_REGNUM. |
| |
| Mon Oct 29 18:06:54 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * final.c (final_end_function): Handle dwarf output. |
| (final_scan_insn): Likewise. |
| (output_source_line): Likewise, using ASM_OUTPUT_DWARF_LINE. |
| * toplev.c (rest_of_decl_compilation): Likewise. |
| (rest_of_compilation, main): Likewise. |
| * varasm.c (assemble_variable): Likewise. |
| * flags.h (enum debugger): Define DWARF_DEBUG. |
| |
| * cccp.c (do_define): Rewrite criterion for warning. |
| Don't warn if -D redefining symbol with constant numeric value. |
| |
| * toplev.c (output_file_directive): New function. |
| * sdbout.c (sdbout_filename): Deleted. |
| * tm-3b1.h, tm-att386.h, tm-encore.h, tm-m88k.h, |
| tm-mot3300.h, tm-tahoe.h, tm-vaxv.h (ASM_FILE_START): Use that. |
| |
| * c-decl.c (named_labels): No longer static. |
| (pushlevel): Clear named_labels. |
| (poplevel): Don't clear it here. |
| |
| Mon Oct 29 13:32:57 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * Makefile.in: Update dependencies for various files, mostly cplus-* |
| files. |
| |
| * rtl.def: Remove Sep 26 that added JUMP_LABELs to INSN and |
| CALL_INSN. |
| * rtl.h: Add REG_LABEL register note. For INSN and CALL_INSN, the |
| presence of this register note has the same meaning that a non-NULL |
| JUMP_LABEL would have with the Sep 26 change. |
| * jump.c (jump_optimize): Revert to clearing JUMP_LABEL field of |
| JUMP_INSNs only. |
| (mark_jump_label): If INSN is an INSN or a CALL_INSN, add a |
| REG_LABEL note if a LABEL appears (and no such note already exists). |
| ??? Once recorded, this information appears never to be used. |
| |
| * jump.c (delete_jump): The deletion of INSN must take place when |
| INSN is a simple jump. Also, don't try to optimize if we come |
| across an insn with the reorg-generated pattern (USE (INSN ...)). |
| |
| * cplus-lex.c, cplus-dbxout.c: Remove vestigial support for dumping |
| and undumping the compiler. |
| |
| * Merge cplus diffs from Kenner. |
| * cplus-cvt.c (convert_to_integer): Fold the COND_EXPR we construct. |
| * cplus-typeck.c (build_conditional_expr): Ditto in three places. |
| * cplus-lex.c (yylex,do_pending_inlines): Add conditionals for |
| _IBMR2. This hair will disappear when pcccp support is merged, but |
| needed for now. |
| * cplus-tree.h: Conditionalize use of non-int bitfield types on |
| ONLY_INT_FIELDS. Also, remove duplication declarations of |
| get_temp_name, get_temp_aggr, and get_temp_regvar; add declaration |
| of build_decl_list. |
| |
| Mon Oct 29 11:45:03 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * fixincludes: Fix missing semi in rusers.h. |
| |
| Mon Oct 29 07:07:47 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * flow.c (mark_used_regs): When converting "...*p...; q = p + size" |
| to "q = p, ...*q..., q = q + size", show that Q is needed after INSN. |
| |
| * romp.md (negdi): Directly generate assembly code rather than |
| converting this into a MINUS. |
| |
| * fold-const.c (fold, case COND_EXPR): Add missing condition in test |
| for (A ? 0 : A). |
| |
| Sun Oct 28 15:01:19 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * flow.c (find_basic_blocks): An indirect jump can go |
| to any label whose address is used as data. |
| |
| * m68k.md (zero-extend QI): Use gen_rtx, not change_address. |
| |
| * Makefile.in (USER_H): List va-*.h explicitly. |
| (toplev.o): Depend on RTL_H. |
| (stamp-*): Depend on move-if-change. |
| (install-headers): Depend on various header files. |
| (install-man): Depend on gcc.1. |
| (gcc.o): Depend on gvarargs.h and obstack.h. |
| |
| * Makefile.in: Make sure every `if' has an `else'. |
| |
| * c-typeck.c (build_binary_op_nodefault): Prevent warning for |
| variable shift count. |
| |
| * i860.md (movsf): Handle moving from CONST_DOUBLE to reg or mem. |
| |
| Sun Oct 28 09:39:14 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * jump.c (delete_jump): The deletion of INSN must take place when |
| INSN is a simple jump. Also, don't try to optimize if we come |
| across an insn with the reorg-generated pattern (USE (INSN ...)). |
| |
| * sparc.md, tm-sparc.h, out-sparc.c: Significantly rewritten to take |
| advantage of new 2.0 optimization capabilities. |
| * old-sparc.md, tm-old-sparc.h, out-old-sparc.c: These are copies of |
| the above files before the rewrite. They may be interesting for |
| measuring performance of old vs. new machine description idioms. |
| |
| Sun Oct 28 00:22:40 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * loop.c (scan_loop): Don't think that a branch to an end-test of |
| a containing look is actually the branch to the end-test of the |
| outer loop. |
| |
| * reload.c (indirect_ok): Deleted. |
| (find_reloads): Accept new arg IND_LEVELS instead of old IND_OK; |
| pass this to find_reloads_address and find_reloads_toplev. |
| (find_reloads_toplev): Accept IND_LEVELS and pass to |
| find_reloads_address. |
| (find_reloads_address): Accept IND_LEVELS and pass it on to |
| find_reloads_address_1. |
| When calling ourself recursively for a MEM as an address, show |
| one indirect level has been used. |
| (find_reloads_address_1): Accept IND_LEVELS and pass it to ourselves |
| in recursive calls and to find_reloads_address. |
| * reload1.c (spill_indirect_levels): New var; used to be |
| spill_indirect_ok. |
| (reload): Compute number of levels of indirection and set it into |
| spill_indirect_levels. |
| (reload, reload_as_needed): Pass spill_indirect_levels not |
| spill_indirect_ok. |
| |
| * reload.c (find_reloads): Make similar change to "V" as "O". |
| |
| * reload1.c (eliminate_regs): For binary operations, don't call |
| recursively on second arg if null (for EXPR_LIST). |
| (eliminate_regs_in_insn): Perform register elmination in the |
| REG_NOTES of an insn when we are doing it for the last time. |
| |
| * vax.md (call_value_pop): Use correct operand number for number |
| of bytes popped. |
| |
| * tm-romp.h (EXTRA_CONSTRAINT): Ensure we ignore reg_renumber if |
| register allocation hasn't been done yet. |
| |
| * function.c (init_function_start): Initialize reg_renumber to zero; |
| it is checked in rtx_renumbered_equal_p. |
| |
| * loop.c (loop_optimize): Ensure we assign a new LUID to all |
| special notes, including NOTE_INSN_FUNCTION_BEG (0). |
| |
| Sat Oct 27 12:22:46 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * out-a29k.c (print_operand, output_prolog): Don't try to fill delay |
| slots with parts of epilogue or prologue unless -O -fdelayed-branch. |
| |
| * tm-rs6000.h (STRUCTURE_SIZE_BOUNDARY): Should be 8. |
| |
| * reorg.c (mark_target_live_regs): Ignore REG_DEAD notes for pseudos; |
| they must not have gotten hard registers. |
| |
| Fri Oct 26 11:30:28 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * gcc.c (main): Set machine_suffix before reading specs file. |
| |
| * c-typeck.c (build_binary_op_nodefault): Warn for bad shift counts. |
| |
| * stor-layout.c (layout_record): |
| BITFIELD_NBYTES_LIMITED affects bitfields only. |
| |
| * loop.c (note_addr_stored): Don't assume PLUS in address is aggregate. |
| |
| Fri Oct 26 00:46:09 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-tree.h: Declare `build_type_conversion' once instead of |
| three times. |
| |
| * loop.c (loop_skip_over): Handle machines without cc0. |
| (labels_in_range_p): Fixed typo where this function returned 0 when |
| it meant to return 1. |
| (check_for_endtest): New function. Returns non-zero when |
| argument is a simple conditional test insn (suitable for being the |
| endtest of a loop). |
| (strength_reduce): Use `check_for_endtest' to identify the endtest. |
| Also fixed some typos in comments. |
| (can_eliminate_biv): Use `check_for_endtest' here, too. |
| (get_condition): Generalized to handle machines without cc0. Now |
| THIS_CC_RTX is the value of the cc rtx. |
| |
| * integrate.c (expand_inline_function): Conditionalize away |
| cc0-specific code with HAVE_cc0. |
| (try_constants): Add appropriate declaration for ORIG. |
| (try_fold_condition): Generalized to work for non-cc0 condition |
| values. |
| |
| * cplus-type2.c (digest_init): Add missing declaration of FIELD. |
| * rtl.h: Add missing declaration of plus_constant_for_output. |
| * jump.c (can_reverse_comparison): Fixed typo. |
| (delete_jump): Made to work without cc0_rtx. |
| |
| Fri Oct 26 00:01:27 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reorg.c: Conditionalize references to CC0_RTX on HAVE_cc0. |
| |
| * reload.c (find_reloads): For the `o' constraint, if IND_OK is |
| true, use offsettable_memref_p instead of the nonstrict version. |
| |
| * jump.c (delete_jump): If HAVE_cc0 is not defined, it is not safe to |
| delete previous insn that sets a condition code register, because it |
| might not be dead. Rework to look at all registers dying in this insn |
| and delete the first previous insn that sets any such register if that |
| is all it does. |
| |
| * jump.c (jump_optimize): Remove extraneous call to next_active_insn |
| in optimization of "if (...) x = 1; else ...; if (x) ...". |
| |
| * cse.c (predecide_loop_entry): Don't set cc_value to null and then |
| stick it in the rtl. |
| |
| * rtlanal.c (find_next_ref): Deleted from here. |
| * explow.c: Include hard-reg-set.h for find_next_ref. |
| (find_next_ref): Moved to here. |
| * Makefile.in (explow.o): Includes hard-reg-set.h. |
| |
| Thu Oct 25 21:37:15 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * va-mips.h (va_list): Put __ in member names. |
| (va_dcl): Rename _va_alist to __va1_alist. |
| * va-i860.h (__va_struct): Put __ in member names. |
| * gvarargs.h, va-*.h: (__va_ellipsis): New macro. |
| (va_dcl): Use that. |
| |
| * c-typeck.c (convert_for_assignment): For functions, reverse the |
| usual criterion for warning about const vs non-const. Volatile also. |
| |
| * m88k.md, tm-m88k.h, out-m88k.c: Rewrites by wood@dg-rtp.dg.com. |
| * tm-m88kdgux.h, tm-v88r32.h, tm-m88ksvr4.h: New files. |
| * xm-m88kdgux.h, xm-v88r32.h, xm-m88ksvr4.h: New files. |
| * make-m88k, make-m88kdgux: New files. |
| * config.gcc (m88k-dgux, m88k-v88r32, m88k-svr4): New alternatives. |
| |
| * gvarargs.h, gstdarg.h: Include alternate file for m88k. |
| |
| * expr.c (expand_expr): For ARRAY_REF, preserve const and volatile. |
| |
| * expr.c (expand_builtin): Handle strcmp and memcmp with function calls |
| if can't be open coded. |
| |
| * function.c (expand_function_end): Round trampoline addr to init. |
| (round_trampoline_addr): Fix braino in alignment. |
| |
| Thu Oct 25 14:54:18 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * jump.c: Now includes insn-config.h. |
| (jump_optimize): inequality_comparisons_p takes only one operand again. |
| (can_reverse_comparison_p): Handle case where a register is used |
| for the condition code; if we can't easily find the COMPARE that |
| was used to set the register, say we can't reverse the comparison. |
| * Makefile.in (jump.o): Now includes insn-config.h. |
| |
| * jump.c (jump_optimize): Put back change removed on Oct 21st; |
| emit_store_flag has now been updated. |
| |
| * rtlanal.c (inequality_comparisons_p): Reject any ordered |
| comparison; we need not just reject when comparing against |
| cc0_rtx. |
| * recog.c (next_insn{,s}_test_no_inequality): inequality_comparisons_p |
| again has only one operand. |
| * genattrtab.c (cc0_rtx): No longer needed; remove change of Oct 21. |
| |
| * genconfig.c (have_cc0_flag): New variable. |
| (walk_insn_part): Set it when we see CC0. |
| (main): Write #define HAVE_cc0 when it is set. |
| * flow.c: Now includes insn-config.h. |
| * Makefile.in (flow.o): Likewise. |
| |
| * combine.c (subst): If X and FROM are the same register number, |
| but in different modes, force the combine not to be done. |
| Add missing initialization of undobuf.storage. |
| |
| Thu Oct 25 11:34:35 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * sched.c (new_sometimes_live): Protect this function in case it is |
| called with (OFFSET,BIT) that evaluates to >= MAX_REGNO. |
| |
| * jump.c (sets_cc0_p): Conditionalized to abort if called when |
| machine does not support cc0. |
| |
| * rtlanal.c (reg_set_p): Now non-static. |
| * rtlanal.c (rtx_varies_p): Handle LO_SUM more accurately. |
| * rtlanal.c (find_next_ref): New function. Returns the insn that |
| next references REG after INSN, or 0 if REG is clobbered before next |
| referenced or it cannot easily find a reference to REG. |
| |
| * recog.c (next_insn_tests_no_inequality): Conditionalized on |
| HAVE_cc0. |
| |
| * rtlanal.c (inequality_comparisons_p): Takes new argument |
| THIS_CC0_RTX which is the rtl for the condition code value we are |
| concerned about testing. All callers changed. |
| |
| * flow.c (propagate_block,mark_used_regs): Conditionalize |
| specialized cc0 handling only if HAVE_cc0 is defined. |
| |
| * genemit.c (gen_exp): In REG case, If CC0_REGNUM is defined, |
| save space by using REG_CC0_RTX instead of allocating a new |
| (REG, mode, CC0_REGNUM) rtx if the mode is SImode. |
| |
| * final.c (output_addr_const): Handle PC for P.I.C. code generation. |
| Also, put parens around CONST expressions so that precedence can be |
| maintained. |
| * final.c (final_scan_insn): Don't look for redunant compares |
| except when HAVE_cc0 is defined. |
| Also, use `find_cc' to locate the rtx functioning as the |
| condition code register in order to perform appropriate calls |
| to `alter_cond'. |
| |
| * expr.c (expand_expr): Supply missing arg in calls to `store_expr'. |
| |
| * expmed.c (emit_store_flag): New argument COMPARISON is the |
| comparison operation whose result we store. |
| |
| * recog.c (offsettable_address_p,adj_offsettable_operand): Use |
| `plus_constant_for_output' instead of `plus_constant' since we |
| are testing conditions which rely on being able to add small |
| offsets to e.g. LO_SUM operands. |
| * explow.c (plus_constant): No special handling for LO_SUM. It is |
| not valid to add a constant to a term with LO_SUM, since the |
| constant may need to be added to the high bits that form the sum, |
| and those high bits are not readily available. |
| * explow.c (plus_constant_for_output): Same as `plus_constant' |
| except that we do allow adding constants to LO_SUM terms. This |
| function works only in special cases such as for |
| `adj_offsettable_operand' and `offsettable_address_p'. |
| |
| * emit-rtl.c: Declare reg_cc0_rtx which is like cc0_rtx, but |
| is a register instead of a special form. reg_cc0_rtx should |
| be used when representing the condition code register on a |
| machine where condition codes are only set if explicitly set. |
| For machines which allow arbitrary registers to be used as |
| condition code registers (such as the MIPS and 88k), normal |
| pseudo registers should be used instead. |
| * emit-rtl.c (next_cc0_user,prev_cc0_setter): Conditionalized |
| on HAVE_cc0. |
| * emit-rtl.c (find_cc): New function. Given INSN, returns |
| the rtx of what functions as the condition code register for |
| INSN. On machines which use cc0_rtx, this is always cc0_rtx. |
| On machines which have a dedicated register for cc0, this is |
| that register. On machines which allocate pseudos for holding |
| condition codes, this is the pseudo found in a REG_CC0 note. |
| Otherwise, this function returns 0. |
| * emit-rtl.c (init_emit_once): Allocate `reg_cc0_rtx' if |
| CC0_REGNUM is defined. |
| |
| * cse.c (make_regs_equiv): Don't consider making a reg |
| equivalent to another reg whose class is NO_REGS. |
| * cse.c (canon_reg): Don't canonicalize a register to |
| one whose class is NO_REGS. |
| * cse.c (fold_rtx): Conditionalize code for handling cc0_rtx |
| with HAVE_cc0. |
| * cse.c (predecide_loop_entry): Generalize code to use either |
| a register or cc0_rtx. |
| * cse.c (cse_insn): Conditionalize code for handling cc0_rtx |
| with HAVE_cc0. |
| |
| * combine.c (combine_instructions,try_combine,subst): |
| Conditionalize code handling cc0_rtx with HAVE_cc0. |
| * combine.c (simplify_set_cc0_and): Abort if HAVE_cc0 is not |
| defined. |
| * combine.c (try_distrib): Add break at end of switch cases. It is |
| dangerous to leave the last cases of a switch statement to fall |
| through since new cases added after will get fallen into. |
| |
| * recog.c (validate_change): Always succeed for an asm insn, |
| since recog always fails to recognize asm insns. This is |
| needed for virtual register instantiation in asm insns. |
| |
| * cse.c (cse_main): When following jumps, notice whether a |
| particular basic block causes CSE_JUMPS_ALTERED to become set. When |
| this happens, repeat the scan. |
| * cse.c (refers_to_mem_p): Changed parameter name REG to BASE, |
| which is more accurate. Also, taught it how to cope with |
| LO_SUM rtl constructs. |
| |
| Wed Oct 24 15:36:12 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * calls.c (store_one_arg): Accept additional arg, FNDECL. |
| Don't save argument area if it is within the REG_PARM_STACK_SPACE |
| area, but mark the area in use. |
| (expand_call): If ACCUMULATE_OUTGOING_ARGS and REG_PARM_STACK_SPACE, |
| treat the stack area for the registers as be clobbered by the called |
| routine (e.g., if it was compiled without -O) and save and restore |
| it if it was previously used for arguments in a similar manner to |
| the remainder of the argument area (done by store_one_arg). |
| |
| * calls.c (expand_call): Support new description macro, |
| STACK_PARMS_IN_REG_PARM_AREA. |
| * function.c (assign_parms): Likewise. |
| |
| Wed Oct 24 12:47:21 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-typeck.c (build_array_ref): Use main variant for value type. |
| |
| * genoutput.c (output_prologue): Let SEPARATE_AUX_OUTPUT |
| cause aux-output.c not to be included. |
| Makefile.in (aux-output2.c): Copy aux-output.c and then compile it. |
| |
| * reload.c (subst_reg_equivs): Treat HIGH like other constants. |
| |
| * reload.c (push_reload): When testing hard reg for validity, |
| test subsequent regs only against class, not for HARD_REGNO_MODE_OK. |
| |
| Tue Oct 23 22:49:33 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * cccp.c (collect_expansion): Skip ## at start after the error. |
| |
| * gcc.c (default_compilers): Handle - as suffix. |
| (main): Make that a special case; it matches only exactly `-'. |
| |
| Tue Oct 23 22:40:33 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * romp.md (store{s,h,q}i pattern): Allow "b" for clobbered pseudo |
| in addition to "d" in first alternative. |
| |
| * reload1.c (eliminate_regs): IF_THEN_ELSE isn't a unary operation. |
| |
| Tue Oct 23 20:35:13 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * m68k.md (zero-extend QI): When pushing, store value at 1(sp). |
| |
| Mon Oct 22 12:27:08 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * cccp.c (rescan): In the loop that handles numbers, discard \newline. |
| Also make `..' terminate a preprocessing number. |
| |
| * Makefile.in (tmpgnulib, stamp-gnulib2): Do `set -e'. |
| |
| * gcc.c (default_compilers): Give __GNUC__ value 2. |
| Don't define it for .S files. |
| |
| Mon Oct 22 07:33:42 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * optabs.c (emit_indirect_jump): New function; now checks predicate |
| of indirect_jump. |
| * stmt.c (expand_computed_goto, expand_goto): Use new function instead |
| of directly emitting indirect jump. |
| |
| * flow.c (mark_set_1): Make LOG_LINKS for hard registers. |
| * combine.c (subst): Make new macro COMBINE_RTX_EQUAL_P which |
| considers things equal if they are the identical RTX or the same |
| register with the same mode; use to see if something changed and |
| if we have a match. |
| |
| * cccp.c (S_ISREG): Use argument instead of global. |
| (main): Correct sense of S_ISREG usage. |
| (check_precompiled): Use S_ISREG. |
| |
| * flow.c (mark_used_regs): Don't allow reg_next_use to point to |
| a NOTE; either point it to replacement insn or invalidate it. |
| |
| Mon Oct 22 00:13:12 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-parse.y (xdecls): No warning unless -pedantic. |
| |
| Sun Oct 21 17:49:24 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * genattrtab.c (cc0_rtx): Define, referenced in rtlanal.c. |
| |
| * jump.c (jump_optimize): Remove code that depends on changes to |
| emit_store_flag that haven't been made yet. |
| |
| * expmed.c (extract_bit_field): Correctly check for bitfield |
| completely filling a mode. |
| |
| * out-romp.c (output_epilogue): Correctly write number of words of |
| arguments into trace table. |
| |
| * calls.c (store_one_arg): Fix error in change of Oct 19th. |
| |
| * reorg.c (mark_target_live_regs): Revert back to old behavior |
| of scanning all insns, even those in delay slots. |
| (fill_simple_delay_slots): Need only call update_block if we move |
| an insn across a label. |
| |
| * Makefile.in (LIBFUNCS): Use consistent naming convention for |
| comparison routines; gnulib.c was always correct. |
| |
| * function.c (assign_parms): Don't overwrite DECL_INCOMING_RTL when |
| we are called for the second time. |
| |
| * integrate.c (initialize_for_inline): Don't make a new return label |
| here; the maximum label number has already been computed. |
| (save_for_inline_copying, save_for_inline_no_copy): Do it here instead. |
| |
| * reload.c (find_reloads_address): For indirect address where the |
| underlying address is also invalid, ensure that we substitute into |
| the MEM that we will use. |
| |
| Sun Oct 21 14:12:47 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * reload.c (find_equiv_regs): Reject reg that overlaps goal. |
| |
| * expmed.c (extract_bit_field): For big fields, make sure |
| value really goes in the target. |
| |
| * expr.c (expand_builtin): Delete __builtin_varargs. |
| (EXPAND_BUILTIN_SAVEREGS): New macro says how to do __builtin_saveregs. |
| |
| * calls.c (expand_call): No "can't inline" warning if -fno-inline. |
| |
| * stddef.h: Add missing #endif. |
| |
| Sat Oct 20 14:33:14 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * function.c (round_trampoline_addr): New function. |
| (trampoline_address): Use that. |
| |
| Fri Oct 19 15:13:31 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * calls.c (store_one_arg): Don't mark stack area used until after |
| we have written into it; if we do it before, the restore might |
| clobber a function result being put into that stack area. |
| |
| * objc-actions.c (print_lang_statistics): Add empty function. |
| |
| * recog.c (inequality_comparisons_p): Deleted from here. |
| * rtlanal.c (inequality_comparisons_p): Moved to here; not static. |
| |
| * a29k.md (extendhisi2): Fix typo in define_split. |
| |
| * Makefile.in (integrate.o): Includes integrate.h. |
| (reorg.o): Includes insn-flags.h. |
| |
| Fri Oct 19 14:49:26 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * sdbout.c (sdbout_symbol): If a variable belongs to an inline |
| function, the decl's rtl may not be rewritten by alter_reg. So if |
| we have a variable allocated to a pseudo, just get the hard register |
| number from `reg_renumber'. ?? But I thought that COFF was so |
| losing that it was decided one could not represent debug info for |
| inline functions in COFF. |
| |
| Fri Oct 19 13:21:25 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * fold-const.c (split_tree): Use NEGATE_EXPR to negate *conp. |
| |
| Fri Oct 19 00:15:21 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * version.c: Bumped to 1.90.03. |
| |
| * tree.c: Added facility for gathering statistics on the number of |
| tree nodes allocated and the size in bytes they occupy. The |
| statistics are by tree_node_kind, which is almost like using the |
| tree code letter, but has more resolution for dealing with different |
| kinds of `x' nodes. The facility is enabled by compiling the |
| compiler with -DGATHER_STATISTICS and using the -fstats flag. |
| |
| * expr.c (do_tablejump): Emit a BARRIER after the jump that performs |
| the tablejump. |
| |
| * cplus-typeck.c (c_expand_return): Rewritten so that the function |
| value return register is not used except as a target of the function |
| return value. |
| |
| * cplus-tree.c (build_cplus_new): New argument WITH_CLEANUP_P |
| controls whether this functino should build its result with a |
| cleanup or not. All callers changed. |
| |
| * cplus-lex.c: File updated to latest changes to c-parse.y's lexical |
| analyzer. |
| |
| * cplus-except.c (cplus_expand_raise): New parameter FOR_RERAISE |
| is used to control whether to output extra gotos or not. When |
| nonzero, the compiler can avoid writing out the extra gotos that are |
| otherwise needed to avoid warning messages. |
| |
| * cplus-decl2.c (flag_short_double): Add support for this option. |
| |
| * cplus-decl.c (finish_function): Always cause returns to jump to |
| the return label. This allows -Wreturn to give meaningful error |
| messages. |
| |
| * jump.c (invert_exp): Make this non-static. |
| (jump_optimize): Reorganization and simplification of main inner |
| loop. Comments added explaining what the optimizers are looking |
| for. New optimization added that optimizes for consecutive testing |
| of an inequality test followed by an equality test (or vice-versa). |
| Changes made to accommodate reorg.c on Sparc. Code for |
| cross-jumping return statements was previously dead in this |
| function; as a result of the reorganization, it is now live. |
| (find_cross_jump): Added temporary variable PREV1 to hold return |
| value of `prev_nonnote_insn' instead of calling the function 3 times |
| in a row. Also changed so that USE or CLOBBERS are not cross-jumped |
| unless some real insns are also cross-jumped. This helps reorg. |
| (redirect_jump): Fixed a return that returned no value so that it |
| returns 1. |
| (rtx_renumbered_equal_p): Test that reg_renumber is nonzero before |
| using it. We may want to call this function earlier than by the |
| time that array has been initialized. |
| |
| * integrate.c (save_for_inline_{copying,nocopy}): New functions to |
| replace `save_for_inline'. save_for_inline_copying saves the rtl |
| for inline functions by copying the rtl to the |
| maybepermanent_obstack. It is called when the rtl of the current |
| function is going to be compiled immediately. |
| save_for_inline_nocopy takes advantage of the fact that inline |
| function rtl is already allocated to the maybepermanent_obstack, and |
| need therefore not be copied if it's not going to be modified by the |
| compiler (such as by `rest_of_compilation'). |
| ({initialize_for,finish}_inline): New helper routines for |
| save_for_inline_... functions. |
| (note_modified_parmregs): Function called by `mark_stores' to note |
| whether parameters are assigned to in the body of an inline |
| function. |
| New interface, integrate.h, provides declarations for functions used |
| by other routines that might want to copy chunks of rtl. |
| ({save,try}_constants): Now global (for integrate.h). |
| (mark_stores): Ditto. |
| (try_fold_condition): Ditto. |
| |
| * dbxout.c (dbxout_symbol): If a variable belongs to an inline |
| function, the decl's rtl may not be rewritten by alter_reg. So if |
| we have a variable allocated to a pseudo, just get the hard register |
| number from `reg_renumber'. |
| |
| * varasm.c (output_const_pool): No longer static. |
| (assemble_variable): Do output debugging information for global |
| register variables. GDB does the right thing for global register |
| variables. |
| |
| * toplev.c: New flag `warn_inline' for warning when a function |
| declared inline was not in fact inlined. Also, new flag |
| `flag_no_inline' which disables function inlining, but retains |
| other properties of inline functions (such as lazy compilation |
| and write-only-if-needed). |
| * toplev.c (compile_file): Changed logic for inline function |
| handling to work with `warn_inline' and `flag_no_inline'. |
| Also modified to call `save_for_inline_nocopy' when insns are to be |
| saved but not immediately compiled. |
| |
| * function.c (instantiate_decls): If instantiating a function |
| which was saved for inline expansion, preserve the rtl created |
| by the instantiation as well. |
| |
| * flags.h (flag_no_inline): New flag; if nonzero, then no |
| calls are inlined, regardless of their declaration. We still |
| save the insns for these functions in DECL_SAVED_INSNS so that |
| the functions need not be written if they are never called. |
| |
| * calls.c (expand_call): If `flag_no_inline' is set, don't |
| inline the call, regardless of whether it was declared inline |
| or not. |
| |
| Thu Oct 18 13:10:26 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * rtl.def (CODE_LABEL): Add new string field. |
| * rtl.h (LABEL_NAME): Define macro for access. |
| * emit-rtl.c (gen_label_rtx): Initialize it to 0. |
| * stmt.c (expand_label): Store proper name of label. |
| * final.c (final_scan_insn): Call sdbout_label. |
| |
| * tree.h (built_in_function): Add BUILT_IN_VARARGS. |
| * c-decl.c (init_decl_processing): Declare __builtin_varargs. |
| * expr.c (expand_builtin): Generate code for it. |
| Uses new macro EXPAND_BUILTIN_VARARGS. |
| |
| * sdbout.c (SDB_IS_FAKE): Macro deleted. |
| (MAKE_LINE_SAFE): New macro. |
| (sdbout_begin_block, sdbout_end_block, sdbout_end_function): Use it. |
| (sdbout_one_type): Delete spurious second arg in all callers. |
| (sdbout_types, sdbout_end_function): |
| Use sdbout_dequeue_anonymous_types. |
| (sdbout_label): New function. |
| |
| * expr.h (FUNCTION_ARG_BOUNDARY): Default is now PARM_BOUNDARY. |
| |
| * gvarargs.h, va-*.h (va_dcl): |
| Add ellipsis so current_function_varargs is set. |
| |
| * jump.c (jump_optimize): Exit push-optimize loop at end of insns. |
| |
| Thu Oct 18 07:09:06 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reorg.c: Major reorganization. Many special cases have been moved |
| into more general code and an overall restructuring has been done. |
| Numerous bugs have been fixed. Highlights: |
| (dbr_schedule): First make list of all insns needing filling. Then |
| iterate for two passes. In each pass, try two methods of filling |
| delay slots, then do some canonicalizations, which may create more |
| insns to fill. |
| (fill_simple_delay_slots): Now uses list of insns that need filling, |
| rather than making such a list. |
| Enhance code that finds insns when code paths merge to allow multiple |
| uses of the label as long as all uses are in the skipped code. |
| (struct resource): Notice volatile memrefs. |
| (stop_search_p): Allow option to continue when label is reached. |
| (find_end_label, make_return_insns): New functions; when we have a |
| filled branch that is really a RETURN, first convert it to a jump |
| to a return label and then later see if the insns in the delay slots |
| are also valid for a RETURN. |
| (mostly_true_jump): Test for branch to loop beginning rather than |
| branch at end of loop. Also, conditional return insns predict false. |
| (own_thread_p): New function to replace fall_through_to_p. |
| (try_merge_delay_insns): Only support merging insns already in an |
| insns delay list. |
| (get_branch_condition, condition_dominates_p): New functions. |
| (steal_delay_list_from_{target,fallthrough}): New functions to |
| replace steal_delay_list. |
| (redundant_insn_p): New function. |
| (update_block, mark_target_live_regs, dbr_schedule): When moving |
| an insn not at the front of the basic block to a delay slot, |
| leave a "ghost" USE so that we can track things livened and killed. |
| (fill_slots_from_thread): Eliminate use of static vars for number |
| of slots to fill and already filled. |
| Try to modify an insn that follows a register-register copy to use |
| the original register; this may create a delay-slot opportunity. |
| (try_hoist_target{,_1}): Deleted. |
| (relax_delay_slots): Rewritten to just perform canonicalizations |
| previously done elsewhere. No actual delay slot filling is done |
| here. Any new delay slots created will hopefully be filled in the |
| next pass around the loop in dbr_schedule. |
| |
| * expr.c (emit_push_insn): Don't try to compute a SUBREG of a |
| hard register in a non-integer mode when pushing a "partial" arg. |
| |
| * recog.c (validate_change, apply_change_group): After reload, ensure |
| that operands meet the constraints by calling constrain_operands. |
| (validate_replace_rtx_1): Consider two rtx equal if they refer to |
| the same register. |
| |
| * jump.c (jump_optimize): Extend change of Oct 16th to handle |
| the other usage of find_equiv_reg; remove invalid death notes there. |
| |
| * rs6000.md, tm-rs6000.h, out-rs6000.c, xm-rs6000.h, make-rs6000: |
| New files. |
| |
| * out-a29k.c (extract_subword): Use gen_{high,low}part from |
| an FP CONST_DOUBLE if host and target float formats are the same |
| or REAL_IS_NOT_DOUBLE. |
| |
| * out-romp.c (output_fpop, output_fpops): Provide fr0 as a scratch |
| register unless it is used in the insn. |
| |
| * romp.md: In combined set CC0 and move, optimize case where move |
| is nop. |
| (DF moves): Fix typo in generation of `get' insn. |
| Don't split if input is CONST_DOUBLE because we can't easily |
| generate the proper constants. |
| (call patterns): Copy data area address via a pseudo to allow |
| better CSE'ing. |
| |
| * tm-romp.h (RTX_COSTS): Memory is expensive, except for a reference |
| to our own data area, which is very cheap. |
| (ADDRESS_COST): References to the constant pool are as cheap as |
| register + offset, since that's what it will be. |
| |
| * emit-rtl.c (gen_{low,high}part): Can often extract word from FP |
| CONST_DOUBLE when host and target floating formats agree. |
| (add_insn_after): No longer static. |
| |
| * reload1.c (reg_equiv_memory_loc): Renamed from reg_equiv_stack_slot |
| and now static. |
| (reload): If have equivalence with constant that is not a legitimate |
| constant operand, force it into memory and handle this as an |
| equivalence to memory. |
| * reload.h (reg_equiv_stack_loc): Deleted. |
| |
| Wed Oct 17 20:50:58 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * gcc.c, cccp.c (main): Use TARGET_VERSION if -v. |
| |
| * expmed.c (extract_bit_field): Typo in last change. |
| |
| * Makefile.in (tmpgnulib): Support assembler files named *.asm. |
| |
| * gcc.c (do_spec_1): Null-terminate error message. |
| |
| * sdbout.c (sdbout_symbol): Handle subreg as DECL_RTL. |
| This happens for vars from the parms of inline functions. |
| * dbxout.c (dbxout_symbol): Likewise. |
| |
| * genattr.c (fancy_abort): New function, as in gen*.c. |
| |
| Wed Oct 17 14:53:48 1990 Michael I. Bushnell (mib at geech.ai.mit.edu) |
| |
| * pcp.h: New file. |
| |
| * cccp.c: Support use of precompiled files |
| Include "pcp.h". |
| (no_precomp, stringlist, stringlist_tailp): New variables. |
| (union hashval): New field `keydef'. |
| (enum nodetype): New alternative `T_PCSTRING'. |
| (main): Support -noprecomp. |
| Use write_output to write output. |
| (rescan): Call pcstring_used for T_PCSTRING symbols. |
| (do_include): New local variables pcftry, pcfname, pcf, pcfbuf, |
| pcfbuflimit, and pcfnum. |
| Check for possible use of precompiled files. |
| (check_precompiled): New function. |
| (check_preconditions): New function. |
| (pcfinclude): New function. |
| (pcstring_used): New function. |
| (write_output): New function. |
| (create_definition): New function. |
| (do_define): Moved most of the work into create_definition. |
| (dump_single_macro): New function. |
| (dump_all_macros): Moved most of the work into dump_single_macro. |
| (dump_defn_1): New argument OF. |
| (dump_arg_n): New argument OF. |
| |
| * cccp.c: Support generation of precompiled files |
| (pcp_outfile, pcp_inside_if): New variables. |
| (struct definition): New field `predefined'. |
| (main): Support -pcp. |
| (rescan): Don't expand macros outside #if during -pcp. |
| (special_symbol): Error for most special symbols during #if in -pcp. |
| Output precondition for T_CONST and T_SPEC_DEFINED symbols. |
| (eval_if_expression): Set and clear pcp_inside_if. |
| (do_ifxdef): Output preconditions. |
| |
| Tue Oct 16 13:22:05 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * stor-layout.c (layout_record): For PCC_BITFIELD_TYPE_MATTERS, |
| make it true that zero-length field affects alignment of next field. |
| |
| * rtlanal.c (get_integer_term, get_related_value): Moved from cse.c. |
| |
| * jump.c (jump_optimize): When reusing value via find_equiv_reg, |
| delete obsolete death note. |
| |
| * expmed.c (extract_bit_field, store_bit_field): |
| Handle fields wider than a word. |
| Restrict special case for word-sized field to aligned words. |
| |
| * expmed.c (extract_bit_field, store_bit_field): Don't let |
| BESTMODE be bigger than the insn can handle. |
| |
| * Makefile.in (tmpgnulib): Fix typos handling LIBFUNCS_EXTRA. |
| |
| * cccp.c (handle_directive): Turn on code to handle # LINENUM, |
| and move initializations past the label `old_linenum'. |
| |
| * c-decl.c (grokdeclarator): If traditional, make bitfields unsigned. |
| (finish_struct): Don't do that here. |
| |
| * fixincludes (CTRL): Don't put quotes around a quote. |
| |
| * stddef.h (size_t): Also inhibit if _SIZE_T_. |
| |
| Mon Oct 15 13:15:30 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-decl.c (grokdeclarator): Make flag_signed_bitfields work |
| for int and for typedefs. |
| |
| Sun Oct 14 21:28:32 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * flow.c (life_analysis): No hard regs for any pseudos live at setjmp. |
| |
| * c-decl.c (duplicate_decls): Don't suppress warning for fn defn |
| after implicit declaration, if fn has already been defined. |
| |
| Fri Oct 12 15:54:11 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-parse.y (xdecls): Allow ellipsis after parm decls. |
| Call c_mark_varargs. |
| * c-decl.c (start_function): Clear c_function_varargs. |
| (c_mark_varargs): New function. Set it. |
| (store_parm_decls): Maybe call mark_varargs. |
| * function.c (init_function_start): Clear current_function_varargs. |
| (mark_varargs): New function. Set it. |
| |
| Thu Oct 11 13:15:36 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * genattrtab.c (fancy_abort): New function, as in gen*.c. |
| |
| * expr.c (saveregs_value): New variable. |
| (init_expr, save_expr_status, restore_expr_status): |
| Init, save, restore the variable. |
| (expand_builtin): Don't call __builtin_saveregs twice in one function. |
| |
| * va-*.h: Rename all structure fields to start with __. |
| * va-pyr.h: Rename variables also. |
| (va_start): Delete the unmatched {. |
| (va_end): Now a nop. |
| |
| Wed Oct 10 22:03:20 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * va-sparc.h (__va_ctl): Rename fields to start with __. |
| |
| Tue Oct 9 12:55:48 1990 Michael Meissner (meissner at osf.org) |
| |
| * Allow configuration to specify size of a wide character. |
| (WCHAR_TYPE_SIZE): New parameter. |
| (WCHAR_UNSIGNED): New parameter, says whether type is signed. |
| |
| * c-decl.c (WCHAR_TYPE_SIZE): Define if not defined. |
| (WCHAR_UNSIGNED): Likewise. |
| (wchar_type_node, signed_wchar_type_node, unsigned_wchar_type_node): |
| (wchar_array_type_node): New variables. |
| (init_decl_processing): Init them. |
| * c-tree.h: Make them extern. |
| |
| * c-common.c (WCHAR_TYPE_SIZE, WCHAR_BYTES): Define them. |
| (combine_strings): Handle them. |
| * c-parse.y (init_lex, yylex): Likewise. |
| |
| * c-typeck.h (digest_init): Use wchar_type_node and |
| signed_wchar_type_node to get the base type of wide strings, rather |
| than using int and unsigned. |
| |
| Tue Oct 9 14:16:37 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * expmed.c (extract_bit_field): Typo; section for extv used extzv. |
| |
| * c-typeck.c (digest_init): Error if union has no name field. |
| (process_init_constructor): For union, use first named field. |
| |
| * flow.c (propagate_block): Include NOTE at end of block in scan. |
| |
| * fixincludes: Fix missing semicolon in rstat.h. |
| |
| * cccp.c (main): Record the option names used for assertions. |
| Call make_assertion properly. |
| |
| Tue Oct 9 06:18:38 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cse.c (fold_rtx): Call find_best_addr before seeing if we know |
| what is located at that address. |
| Don't try to return the contents of an ADDR_DIFF_VEC table; we have |
| no simple way of representing it. |
| (cse_insn): Detect SRC == DEST even when DEST is not the canonicalized |
| form of the value represented by SRC. |
| |
| * loop.c (scan_loop): Don't set THRESHOLD until LOOP_HAS_CALL |
| has been set. |
| (struct induction): Add field MEM_MODE. |
| (find_mem_givs, combine_givs_p): Record mode used to access memory |
| when making DEST_ADDR giv and use it to test validity of |
| derived address. |
| |
| * jump.c (delete_jump): No longer static. |
| (invert_jump): Allow changing RETURNs to branches and vice versa. |
| Now returns success/failure indication like redirect_jump. |
| * rtl.h (delete_jump): Define. |
| |
| * calls.c (store_one_arg): Don't expand a `partial' arg into |
| arg->stack and don't set arg->value to arg->stack_slot for |
| such args. |
| Clean up by breaking out common code. |
| |
| Mon Oct 8 15:09:31 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * loop.c (can_eliminate_biv_p): Insist that mult_val be positive. |
| |
| * Makefile.in (insn-*): Remove semicolon from these rules. |
| (INSTALL_PROGRAM, INSTALL_FILE): New variables. |
| (install-*): Use those variables. |
| (mandir): Default based on manext. |
| |
| Mon Oct 8 10:57:14 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * stmt.c (expand_catch_default): Return 1 if EXCEPT_STACK is |
| nonzero. |
| |
| * c-decl.c (finish_enum): Argument to floor_log2 in |
| calculation of negprecision was not negated. |
| |
| Mon Oct 8 06:50:15 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * rtl.h (INSN_ANNULLED_BRANCH_P, INSN_FROM_TARGET_P): New fields. |
| |
| Sun Oct 7 23:33:24 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * tm-i386v.h (STARTFILE_SPEC): Handle -p here. |
| (LIB_SPEC): Not here. |
| |
| Thu Oct 4 05:06:02 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * gcc.c (default_compilers): Define __OPTIMIZE__ for %{O*}, not just |
| %{O}. This permits the use of -O2, -O3, etc., with predictable |
| results. |
| |
| * expr.c (expand_expr): Do not build new cleanups for |
| TARGET_EXPRs. Their cleanups are now handled entirely by the |
| language-specific code that causes them to be generated. |
| |
| * function.c ({push,pop}_temp_slots): Do not change |
| temp_slot_level if within a sequence. GNU C++ must be able to |
| emit a sequence it is building anywhere at the level the sequence |
| was initiated. If the level is changed when building a sequence, |
| temporaries could be unwittingly shared. |
| |
| * cplus-tree.def: change print strings for NEW_EXPR and |
| CPLUS_CATCH_DECL. |
| |
| * cplus-dem.c (do_type): Support `long long' types. |
| |
| * cplus-decl.c (finish_file): No longer try to emit _init,_fini |
| records for GNU C++. This was supposed to help the SunOS dynamic |
| linker link C++ code, but it turned out not to work. |
| |
| * cplus-decl.c ({start,finish}_function): Don't emit an extra |
| binding contour if not in a constructor or destructor. It is not |
| needed, and saves writing out unneeded debugging info. |
| |
| * cplus-class.c (build_method_call): Conditionalize handling of |
| wrappers and operator->(); these are now only compiled if ESKIT is |
| #defined. |
| |
| * cplus-decl.c (define_label): Updated to treat labels in the same |
| new fashion that c-decl.c treats them. |
| |
| * cplus-*.c: C++ front-end files now support a generic |
| class-browser interface. It is up to some adventurous hacker to |
| implement the class browser. |
| |
| * cplus-*.c: C++ front-end files no longer #include rtl.h. |
| |
| Sun Sep 30 15:53:02 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * cccp.c (make_assertion): New function. |
| (main): Handle -A by calling make_assertion. |
| -A- gets rid of predefined macros and those specified earlier. |
| |
| * print-tree.c (print_node_brief): Declare i for printing REAL_CST. |
| |
| * recog.c (immediate_operand, nonmemory_operand): Don't accept |
| integer constants if caller wants a floating mode. |
| |
| Sat Sep 29 18:40:08 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * reload1.c (emit_reload_insns): Handle preserving death info |
| with find_equiv_reg. |
| |
| * reload.c (find_equiv_reg): Handle INSN_CLOBBERS_REGNO_P. |
| |
| * fixincludes: For link pointing outside /usr/include, |
| use $x rather than $dest. |
| |
| * optabs.c (expand_float, expand_fix): Use dconst1, not 1.0. |
| |
| Sat Sep 29 06:38:38 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * emit-rtl.c (try_split): Use emit_insn_after and delete_insn to |
| ensure that the correct insn chain is maintained in the presence of |
| SEQUENCEs; be careful if the insn being split has a following BARRIER. |
| * jump.c (delete_insn): Correctly update insn chain when deleting |
| insn following or preceeding a SEQUENCE. |
| |
| Fri Sep 28 16:07:42 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-parse.y (yylex): Use REAL_VALUE_TRUNCATE for `f' suffix. |
| |
| * fold-const.c (const_binop): Don't initialize REAL_VALUE_TYPE decls. |
| |
| Thu Sep 27 14:06:37 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * expr.c (expand_expr): Set MEM_VOLATILE_P from TREE_THIS_VOLATILE. |
| |
| Wed Sep 26 00:21:23 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * tm-mips-news.h: New file. |
| |
| * out-i860.c (output_size_for_block_move): Don't decrement. |
| (output_block_move): Decrement initial storing address instead. |
| |
| * c-parse.y (yylex): Always try unsigned int if `u' is written. |
| |
| * c-typeck.c (build_unary_op): Don't let &* make an lvalue. |
| |
| * c-parse.y (initlist): Use [N] rather than case N: for array index. |
| |
| * tm-seq386.h (LINK_SPEC): Define it. |
| |
| * c-parse.y (yylex): Don't try signed int for nondecimal constant |
| if -traditional. Improve messages for -Wtraditional. |
| |
| * stor-layout.c (layout_record): Avoid using DECL_SIZE_UNIT. |
| |
| * jump.c (jump_optimize): Scan all insns for label refs. |
| (mark_jump_label): Quickly ignore uninteresting rtl types. |
| * rtl.def (INSN, CALL_INSN): Add a slot for JUMP_LABEL. |
| |
| * jump.c (jump_optimize): Try combining stack adjusts with pushes. |
| |
| Mon Sep 24 07:31:40 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * stmt.c (expand_computed_goto): Emit barrier after jump. |
| |
| * expr.c (case LABEL_DECL): Return a MEM, so we can take its |
| address; correctly form LABEL_REF. |
| |
| Sun Sep 23 22:54:38 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * loop.c (struct movable): Delete field SET_EQUAL; new field MOVE_INSN. |
| (scan_loop): Only use REG_EQUAL note under very restricted |
| cirsumstances. Set MOVE_INSN field in movables when appropriate. |
| (combine_movables): Simplify matching test now that we only have one |
| source field. |
| (move_movables): Handle MOVE_INSN movables by emitting a new move |
| insn in front of the loop. |
| Correct typo in checking for CALL_INSN. |
| Don't try to make a REG_EQUAL note. |
| (count_loop_regs_set): Remove extraneous assignment to MAY_NOT_MOVE. |
| |
| Sun Sep 23 14:59:21 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * cccp.c (S_ISREG): Define it unless overridden. |
| (main, finclude): Use that. |
| |
| * reload1.c (reload): If insn after a function call uses the |
| function value, and that reg is spilled, and the insn might |
| use it for reloading, add an extra need. |
| (reload_as_need): Detect such insns for new arg to choose_reload_regs. |
| (choose_reload_regs): In that case, don't choose function value reg. |
| |
| * tm-convex1.h, tm-convex2.h (CPP_SPEC): Define __NO_INLINE_MATH. |
| |
| Sun Sep 23 07:52:32 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * version.c (version_string): Bumped to 1.90.02. |
| |
| * final.c (leaf_function): Variable now non-static. |
| * final.c (only_leaf_regs_used): Function now non-static. |
| * final.c (leaf_function_p): Move initialization of |
| `leaf_function' from here... |
| * toplev.c (compile_file): ...to here. We want to know the |
| value of `leaf_function' when we perform code reorginization. |
| * final.c (leaf_function_p): If profiling arcs, we cannot have |
| a leaf function. Also, we have to look at insns in |
| `epilogue_delay_list' to know that all our constraints are |
| satisfied. |
| * final.c (only_leaf_regs_used): Have to look in |
| `epilogue_delay_list' to know that all our constraints are |
| satisfied. |
| |
| * toplev.c (warning_with_file_and_line,warning): Declare third |
| argument V3 for warnings that require 3 `%' expressions in S. |
| * toplev.c (strip_off_ending): New helper function that removes |
| a GCC-recognized filename extension. Call this function in |
| GCC instead of expanding it inline in C code everywhere. |
| |
| * sched.c (schedule_block): The last basic block does not have |
| no live registers. Also, check that we don't copy from an |
| entry in `basic_block_live_at_start' that does not exist. |
| * sched.c (update_reg_first_use): When splitting insns, the |
| insn that is in REG_FIRST_USE might become a NOTE, and a new |
| insn become the insn that should be considered the first use. |
| `update_first_use' keeps REG_FIRST_USE up to date. |
| * sched.c (update_links): Call note_stores with |
| `update_first_use' when an insn splits. |
| |
| Sun Sep 23 00:05:49 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-decl.c (grokdeclarator): Put var array bound in save_expr. |
| |
| Sat Sep 22 14:01:00 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * tree.c (build_index_type): Don't hash variable-bound type. |
| |
| * c-decl.c (start_decl): Error here if var-size object initialized. |
| (grokdeclarator, finish_struct): Record types & decls |
| with array sizes not written as constants. |
| * c-tree.h (C_TYPE_VARIABLE_SIZE, C_DECL_VARIABLE_SIZE): New macros. |
| |
| * tm-aix386.h (LIB_SPEC): Different library name for -p. Always -lc. |
| (LINK_SPEC): Don't pass -lg or -g. |
| (CPP_PREDEFINES): Define _I386 and _AIX. Don't define unix. |
| (SDB_DEBUGGING_INFO): Define it. |
| (DBX_DEBUGGING_INFO): Undefine it. |
| (ASM_FILE_START): Output .noopt if not optimizing. |
| (PCC_BITFIELD_TYPE_MATTERS): Define it. |
| (FUNCTION_PROFILER): Add definition. |
| |
| Fri Sep 21 16:26:51 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * function.c (current_function_epilogue_list): Define this here. |
| * reorg.c: Not here. |
| |
| Fri Sep 21 13:11:11 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * varasm.c (assemble_external_libcall): Frob SYMBOL_REF_USED here. |
| |
| Thu Sep 20 15:29:44 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * expr.h (struct optab): Field libfunc, an rtx, replaces lib_call. |
| * rtl.h (SYMBOL_REF_USED): New macro. |
| * optabs.c (init_optabs): Initialize that field properly. |
| Also initialize new variables *_libfunc. |
| (various functions): Use those vars; use libfunc field. |
| * expr.c (convert_move, emit_block_move, clear_storage): Use the vars. |
| (emit_push_insn, expand_assignment): Likewise. |
| |
| Thu Sep 20 13:51:18 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * out-a29k.c (current_function_epilogue_delay_slot): Renamed from |
| epilogue_delay_slot. |
| |
| * romp.md (movdi): Fix missing short/long qualifier on memory ref. |
| (SFmode/DFmode move patterns): Add explicit alternatives for |
| storing and loading general registers from memory; also add |
| DEFINE_SPLITs for these cases for DFmode. |
| (negsf2,negdf2): Don't use XOR if an operand is a hard FP register. |
| |
| * tm-romp.h (FIXED_REGISTERS, CALL_USED_REGISTERS): Use correct |
| register numbers for FP registers. |
| |
| * output.h (current_function_epilogue_delay_list): New var. |
| * function.c: Include output.h and initialize new var above. |
| * Makefile.in (function.o): Now includes output.h. |
| * reorg.c (epilogue_delay_list): Renamed to |
| current_function_epilogue_delay_list. |
| |
| * final.c (final_scan_insn): Don't delete no-op insn if in delay slot |
| or if we have already pre-scanned. |
| |
| * genconfig.c (max_insns_per_split): Rename from |
| max_insns_per_split_flag and default to 1 instead of 0. |
| |
| * genattrtab.c (n_comma_elts): Return zero for null string. |
| |
| * sdbout.c (MIN,MAX): Add to here; required by recent changes. |
| |
| * expr.c (safe_from_p): A MEM rtx is not safe from an INDIRECT_REF. |
| |
| * c-parse.y (ridpointers): Move definition in front of first use. |
| |
| * reorg.c (mark_referenced_resources): Allow for CODE_LABELs between a |
| CALL_INSN and USE insns preceeding it. |
| (mark_set_resources): Likewise, for following CLOBBERs. |
| |
| Wed Sep 19 17:45:49 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * assert.h (printf): Don't define; should be in stdio.h. |
| |
| * rtl.h (PUT_REG_NOTE_KIND): New macro. |
| * sched.c (attach_deaths): Use it. |
| |
| * reorg.c (mark_referenced_resources): If we put insns to load |
| parameters into the delay slot of a CALL, ignore the USE insns |
| for those parameters. |
| |
| * function.c (fixup_var_refs_1): Don't call fixup_memory_subreg unless |
| its would-be operand is a SUBREG. |
| |
| Wed Sep 19 00:26:59 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * print-tree.c (print_node): Indent before printing RTL. |
| |
| * Makefile.in (protoize.o, unprotoize.o): Look for SYSCALLS.c.X |
| in libsubdir. |
| |
| Tue Sep 18 21:55:01 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cse.c (fold_rtx): For MEM with constant address, split the |
| address into possible base and offset; ensure constant pool |
| value is same mode as our reference unless we are getting a |
| word of a DImode CONST_INT. |
| Treat SYMBOL_REF and LABEL_REF as constants. |
| If we are getting a word at a constant offset from a jump table, |
| replace with the contents of that jump table entry. |
| (cse_insn): When folding jump to variable location (e.g., tablejump), |
| LABEL_REF is the cheapest of all, since the branch would be simple. |
| Special-case changing variable branch to normal unconditional |
| because the RTL may be different (e.g., the variable branch may |
| include a USE). |
| |
| Tue Sep 18 18:33:19 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * toplev.c (count_error): Handle warnings_are_errors. |
| (W_options): Handle -Werror. |
| |
| Mon Sep 17 00:02:12 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-decl.c (lookup_label): Use void as type of label. |
| * stmt.c (label_rtx): No longer static. |
| * expr.c (expand_expr): Handle LABEL_DECL. |
| |
| Sun Sep 16 16:27:29 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * expr.c (expand_builtin): Error for __builtin_nextarg |
| if function definition doesn't have `...'. |
| |
| * expmed.c (store_bit_field): Adjust BITPOS to UNIT all at once. |
| for insv, use mode of operand 3 instead of SImode. Define MAXMODE. |
| Adjust XBITPOS along with mode of XOP0. |
| (extract_bit_field): Adjust XBITPOS along with mode of XOP0. |
| for extv and extzv, use mode of operand 3 thoroughly instead of SImode. |
| |
| * sdbout.c (CHAR_TYPE_SIZE,...): Default definitions of these macros. |
| (plain_type_1): Use those macros to distinguish int and floating types. |
| |
| * toplev.c (rest_of_decl_compilation): Output TYPE_DECL here for sdb |
| only if top_level. |
| |
| * c-parse.y (unary): Don't forget to look up the label. |
| |
| * c-typeck.c (build_conditional_expr): Don't skip arg promotion. |
| |
| Sun Sep 16 14:54:03 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * combine.c (try_combine): If we don't recognize the combined insn, |
| try it without any CLOBBERs. |
| |
| * final.c (final_scan_insn): Prevent CC tracking from thinking |
| that the CC was set by an insn in the delay slot of a CALL_INSN. |
| |
| * expmed.c (init_expmed, expand_divmod): Allow machine to have |
| low cost specified for divides by powers of two if it can do it by |
| a method that if cheaper than the normal shift/branch/adjust mechanism. |
| |
| * cse.c (fold_rtx): When putting constant last, ensure that the |
| resulting insn is valid. |
| |
| * objc-actions (finish_objc): Remove dup defn of gen_declaration_file. |
| |
| * objc-parse.y (ridpointers, token_buffer): Define before use. |
| |
| * reload1.c (scan_paradoxical_subregs): Declare correctly. |
| |
| * tm-romp.h (ENCODE_SEGMENT_INFO): Use INTEGRATED bit to mark |
| SYMBOL_REFs that are addresses of functions (really their data blocks). |
| (LEGITIMATE_CONSTANT_P): Data block addresses of functions are not |
| valid operands. |
| * out-romp.c (symbolic_operand): Likewise. |
| * romp.md (call*): emit_move_insn will now do force_const_mem |
| so it needn't be done explicitly. |
| |
| * out-romp.c (output_fpop): Work around yet another RT fp bug; |
| cannot merge output and first operand for SFmode if general reg. |
| |
| * romp.md: Add new pattern to match combination of copy and test. |
| Use nilo instruction to set CC. |
| |
| Fri Sep 14 07:07:01 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * c-tree.h: Define all *_type_node trees defined in c-decl.c, in the |
| same order as defined there. |
| |
| Fri Sep 14 08:39:17 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-typeck.c (build_c_cast): Convert READONLY_DECLs to make up |
| for the fact that we do not call `default_conversion' anymore. |
| |
| * function.c (instantiate_virtual_regs): If the function is inline, |
| we don't need to worry about making valid rtl, but we do need to |
| worry about instantiating all virtual registers. Otherwise we must |
| make the rtl valid, and we have other opportunities to eliminate the |
| virtual registers during the compilation. |
| |
| Thu Sep 13 16:00:05 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * reload.c (MATCHES): Check for different rtx's with same reg number. |
| |
| * fixincludes: Discard `.' from value of `files'. |
| |
| * c-parse.y (unary_expr): Use unary && to get address of label. |
| (stmt): Handle `goto *EXPRESSION;'. |
| * stmt.c (expand_computed_goto): New function. |
| |
| * gstdarg.h: New name for stdarg.h. |
| * Makefile (install-headers): Rename gstdarg.h while installing it. |
| |
| * sdbout.c (PUT_SDB_LAST_DIM): Get rid of SDB_DELIM. |
| (plain_type): Output accumulated array dims and size. |
| (plain_type_1): Eliminate arg NOSIZE. Save up dims and size. |
| Call self rather than plain_type for pointers and functions. |
| (sdbout_array_type, sdbout_array_depth): Functions deleted. |
| |
| Thu Sep 13 16:12:15 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-class.c (build_method_call): Fix typo in deciding whether to |
| do hairy or trivial pointer conversions on `this'. |
| |
| * cplus-tree.c (layout_vbasetypes): Don't double-count space taken |
| up by virtual baseclasses. |
| |
| Wed Sep 12 18:14:19 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * tm-m68k.h: Use asm_fprintf widely. |
| (REG_PREFIX, IMMEDIATE_PREFIX, LOCAL_LABEL_PREFIX, USER_LABEL_PREFIX): |
| New macros. |
| |
| * final.c (asm_fprintf): New function. |
| |
| Wed Sep 12 06:07:50 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-dbxout.c (dbxout_type): Output basetype size and offset info |
| in bits, not bytes. |
| |
| * cplus-decl.c (finish_{decl,function}): Set CLASSTYPE_ASM_WRITTEN |
| bit of types used by non-extern VAR_DECLs. Set it also for types of |
| PARM_DECLs and return types of functions defined in the file being |
| compiled. |
| |
| Tue Sep 11 13:21:40 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * sdbout.c (plain_type_1): New argument NOSIZE. Inhibits size output. |
| (sdbout_array_type): Call plain_type_1 directly; set NOSIZE. |
| |
| * sdbout.c (sdbout_array_type): New argument DEPTH. |
| Don't output more than SDB_MAX_DIM dimensions. |
| (sdbout_array_depth): New function. |
| (plain_type_1): Start DEPTH by calling sdbout_array_depth. |
| |
| * gnulib2.c (_bb_init_func): Library member now named _bb. |
| |
| * tree.h: Add comments. |
| |
| Mon Sep 10 17:20:06 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * Makefile.in (install): Fix typo. |
| |
| * cccp.c (macarg1): With -traditional, backslash quotes chars. |
| |
| Mon Sep 10 16:37:01 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * jump.c (jump_optimize): Don't swap THEN and ELSE parts during jumps |
| runs after reload. |
| |
| Mon Sep 10 13:07:39 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * cccp.c (collect_expansion): Don't actually substitutee into a |
| string if ANSI; just consider warning. |
| |
| * gnulib2.c (div_qrrnd for i386): Fix typo. Rename some args. |
| |
| * sdbout.c (sdbout_array_type): New argument DEPTH. |
| Don't output more than SDB_MAX_DIM dimensions. |
| (plain_type_1): Start DEPTH at 1. |
| |
| Sun Sep 9 22:02:24 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * out-a29k.c (gen_reg_operand): Exclude SUBREG of a special |
| register. |
| |
| * cse.c: (fold_rtx): Get equivalent for register before seeing if |
| memory reference is to constant pool. |
| (cse_ins): Only call force_const_mem if we actually try to use |
| the constant (i.e., we haven't found anything cheaper). |
| |
| Sun Sep 9 21:49:18 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * ..._BIG_ENDIAN: Now expect definition to be 0 or 1. |
| All refs and defs changed. |
| |
| * tm-mips.h (CPP_SPEC): Error for -EL (for -EB, if DECSTATION). |
| |
| * sdbout.c (sdbout_one_type): Set TREE_ASM_BEING_WRITTEN before |
| recursion, and TREE_ASM_WRITTEN after. |
| |
| Sat Sep 8 16:47:27 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * hard-params.c (main): Don't try to malloc all memory. |
| |
| Sat Sep 8 16:38:53 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reload1.c (reload): Set reg_equiv_constant if the equivalence |
| is any constant, not just a legitimate constant operand. |
| |
| * final.c (get_attr_length, shorten_branches, final_scan_insn): |
| If JUMP_TABLES_IN_TEXT_SECTION is defined, don't put jump tables |
| in readonly data section, even if it exists. |
| |
| Sat Sep 8 14:07:05 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * Makefile.in (bootstrap*): Pass null ALLOCA definition to recursive |
| makes when compiling with GCC since it never needs alloca.c. |
| |
| * c-typeck.c (build_binary_op_nodefault): Warn for signed < unsigned. |
| Controlled by -W. |
| |
| * tm-i386v4.h: New file. |
| |
| Fri Sep 7 13:10:24 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * cccp.c (STDC_VALUE): New macro, defaulting to 1. |
| (intialize_builtins): Use that. |
| |
| * m68k.md (movqi): `st' does not set cc's. |
| |
| Fri Sep 7 07:49:23 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * genemit.c (gen_expand): Fix test for no C code. |
| If no C code, no MATCH_DUPs, and only one insn to write, handle |
| like DEFINE_INSN and return that insn rather than making a sequence. |
| |
| * emit-rtl.c (add_insn_after): If previous or next insn is a |
| SEQUENCE, update the NEXT_INSN in the last insn in the SEQUENCE or |
| PREV_INSN of the first, as appropriate. |
| (emit_insn_before, emit_jump_insn_before, emit_note_before): |
| Call add_insn_after. |
| |
| * stmt.c (check_for_full_enumeration_handling): If a switch whose index |
| is an enumerated type contains labels for every enumeration value, |
| make the label for the last value the default label since such a |
| switch can never fall through. |
| |
| * genattr.c (fatal): Declare first arg correctly. |
| |
| * combine.c (try_combine): No longer check REG_FUNCTION_VALUE_P; |
| its value shouldn't matter once RTL generation is complete. |
| (subst): If NOT is present as an operand in commutative operation, |
| put it last to reduce the number of required patterns. |
| |
| * out-romp.c (output_fpops): Align to word boundary before writing |
| any floating-point blocks. |
| |
| * function.c (instantiate_virtual_regs_1): Fix typo in previous change. |
| When a MEM must be copied, use copy_rtx; the PLUS may also be shared. |
| |
| Thu Sep 6 15:19:42 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * gcc.c (do_spec_1): Don't add __ to -D if __ already present. |
| |
| * c-typeck.c (convert_for_assignment): |
| Better warning for FCN * vs. void * |
| Specific warning for char * vs. unsigned char *. |
| |
| Thu Sep 6 14:52:08 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reorg.c (find_basic_block): Return -1, not 0, if we can't find |
| the basic block. |
| (mark_target_live_regs): Clear PENDING_DEAD_REGS unconditionally. |
| (relax_delay_slots): Don't call optimize_skip for unconditional jump. |
| Only try to remove jump if it is a simple conditional or |
| unconditional jump (but not a tablejump or similar such). |
| |
| * cse.c (invalidate, refers_to_mem_p, cse_rtx_addr_varies_p): |
| Consider (plus (reg) (const_int)) to be a fixed address if REG |
| is constant; old code just handled REG. |
| |
| * genrecog.c (enum routine_type): Use to distinguish two types of |
| routines that we write: recog and split_insns. |
| (make_split_sequence): Write out extern for gen_split_ function. |
| (break_out_subroutines, write_subroutine, write_tree, main): |
| Use new enum routine_type instead of passing "split" or "recog". |
| (write_subroutine): Write correct type for splitting functions and |
| return 0, not -1. |
| (main): Write includes before declarations of gen_split_ functions |
| since "rtx" is needed for them. |
| * rtl.h (try_split, split_insns): Added definitions. |
| |
| Wed Sep 5 16:20:07 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * Makefile.in (includes): Use proper directory. |
| |
| Tue Sep 4 13:59:31 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-decl.c (store_parm_decls): Let extra_warnings control |
| warnings about parms not declared. |
| |
| * flow.c (life_analysis): Move code to detect stack-adjust insns. |
| It was unreachable. |
| |
| * gnulib.c, gnulib2.c (abort): #undef in case config.h defines it. |
| |
| Mon Sep 3 17:50:16 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * calls.c (expand_call): If SETUP_INCOMIMG_VARARGS is defined, pass |
| unnamed args in registers. |
| * function.c (assign_parms): Call SETUP_INCOMING_VARARGS for |
| stdargs as well as varargs; ensure we only call it once. |
| |
| * function.c (instantiate_virtual_regs_1): Don't assume all memory |
| addresses are valid for all insns. |
| |
| Sun Sep 2 22:17:40 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * expr.c (emit_library_call): Push all stack args, then load regs. |
| |
| * c-decl.c (c_build_type_variant): For an ARRAY_TYPE, |
| put the qualifier into the array as well as the element. |
| (grokdeclarator): When a field or variable is supposed to be |
| a const or volatile array, make the array elements const or |
| volatile, but also make the field or variable so. |
| |
| * c-decl.c (grokdeclarator): Turn off the warning for const or volatile |
| function type when making an array. It was useless. |
| |
| Fri Aug 31 16:26:40 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-common.c (truthvalue_conversion): Let the |
| language-specific code decide how to convert EXPR |
| if it is not one of the special forms we recognize. |
| |
| Fri Aug 31 15:08:19 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * gcc.c (execute): Use I instead of undefined var J if DEBUG defined. |
| |
| Fri Aug 31 14:37:36 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * sdbout.c (sdbout_begin_block): Delete excess arg to sdbout_block. |
| |
| Thu Aug 30 21:31:55 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expmed.c (extract_bit_field): Fix typos in computations of UNIT. |
| |
| Wed Aug 29 12:33:33 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * sdbout.c (sdbout_reg_parms): Don't advance parm twice. |
| |
| Tue Aug 28 22:49:41 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * cccp.c (delete_newlines): New function. |
| (macroexpand): Remove newlines from args used more than once. |
| |
| Tue Aug 28 22:16:50 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * Makefile.in (sched.o): Add to list of files to compile. |
| |
| * c-parse.y (position_after_white_space): Declare with correct type. |
| |
| * fold-const.c (optimize_bit_field_compare): Fix typo. |
| |
| * reorg.c (split_insns): No longer need extern for this here. |
| |
| * toplev.c (sched_dump_file): Define. |
| (compile_file): Initialize and print sched_time and sched2_time. |
| |
| * local-alloc.c (block_alloc): Fix typo in allocation of insn_map. |
| |
| * cse.c (cse_insn): Try related value in case where CONST is seen |
| first and SYMBOL_REF later. |
| |
| Tue Aug 28 16:26:50 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * cccp.c (main): Don't modify or validate arg of -D here. |
| (make_definition): Do it all here. |
| |
| * function.c (assign_parms): Reenable `register' for parms. |
| |
| Tue Aug 28 07:12:19 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * tm-a29k.h (CONST_COSTS): All CONST_INTs are cost zero; adjust |
| SYMBOL_REF and CONST_DOUBLE costs to reflect their actual cost. |
| |
| * expr.c (expand_expr): Don't suppress EXPAND_SUM here if not Pmode. |
| (expand_expr, case *_DECL): Return constant address if |
| EXPAND_SUM or EXPAND_INTO_STACK in addition to EXPAND_CONST_ADDRESS; |
| all of these cases will later call memory_address. |
| (expand_expr, case COMPONENT_REF): Always make recursive call with |
| EXPAND_SUM. |
| (expand_expr, case PLUS_EXPR): Try to form constant if X + CONST and |
| mode is Pmode without EXPAND_SUM; if not EXPAND_SUM, use force_operand. |
| Check for MODE != Pmode with EXPAND_SUM here. |
| (expand_expr, case MINUS_EXPR): Always process X - CONST_INT as |
| X + (-CONST_INT)). |
| |
| Sun Aug 26 23:10:10 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-decl.c (c_decode_option): Handle -funsigned-bitfields. |
| (grokdeclarator): Do the real work. |
| (grokfield): Pass either FIELD or BITFIELD to grokdeclarator. |
| |
| * tm-att386.h (asm_output_common): Use SIZE, not ROUNDED. |
| |
| Sat Aug 25 17:17:27 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-parse.y (unary_expr): Turn off handling of &... |
| * c-decl.c (store_parm_decls): Turn off extra dummy parameter. |
| |
| * tm-att386.h (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS): New macros. |
| (BSS_SECTION_ASM_OP): New macro. |
| (ASM_OUTPUT_LOCAL): Call bss_section, don't just print .bss. |
| |
| * combine.c (subst): Handle shift within mem, as multiplication. |
| |
| Sat Aug 25 11:43:09 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * final.c (alter_cond): Handle CC_INVERTED. |
| |
| * conditions.h (CC_INVERTED): New flag indicating that the condition |
| tested leaves the falgs set opposite to the condition tested. This |
| is unsafe for IEEE floating point operations, but useful for integer |
| operations which can combine with condition-code setting operations. |
| |
| * c-parse.y (position_after_white_space): New function. Skips |
| all of the whitespace at the current location in the input |
| file, taking NEXTCHAR into account. Changed all callers of |
| `skip_white_space' in grammar to use this function instead. |
| |
| * genrecog.c (main): Generate code which is more easily optimized by |
| GCC's cse. In particular, start each recognizer with the address of |
| `recog_operands' in a register. |
| |
| * reload.c (combine_reloads): Can only combine reloads if the |
| register we find can hold the entire output reload (i.e., SFmode |
| register may not be suitable for combining with DFmode register). |
| |
| * optabs.c (have_sub2_insn): Fixed typo. |
| * combine.c (combine_instructions): Fixed typo in comment. |
| |
| * function.c (expand_function_end): Emit a barrier after a RETURN |
| jump. |
| |
| * Added diffs for new instruction scheduling code. |
| * emit-rtl.c (try_split): Moved here from reorg.c and made |
| public. Both instruction scheduling and delayed branch |
| filling now use the same code to split insns. |
| * flags.h: Add new flags FLAG_SCHEDULE_INSNS for instruction |
| scheduling before register allocation and |
| FLAG_SCHEDULE_INSNS_AFTER_RELOAD for insn scheduling after |
| register allocation. |
| * recog.c (constrain_operands): Recognize pseudo registers as |
| registers for the purpose of insn constraint matching before |
| register allocation. Otherwise, the insn scheduler assumes |
| the operands will be memory, which is usually wrong (and |
| causes it to build bad schedules). |
| * sched.c (order_calls): New function. For two CALL_INSNS in |
| the rtl chain, we set up a constraint that the second |
| CALL_INSN may not be scheduled to run before the first. |
| (sched_analyze_*): Three kinds of dependencies (true, anti, |
| and output) constrain the order in which insns can be |
| rearranged and still preserve their execution semantics. |
| We now handle dependencies for pseudo and hard register usage |
| and for memory usage in these functions. |
| (launch_links): The ordering of which newly ready insns to |
| execute is now preserved according to their `priority' in the |
| insn chain, and no longer on their order in the dependency |
| list from which they were launched. |
| (schedule_block): Removed support for trying to schedule insns |
| taking branch delays into account. Reorg.c should be hacked |
| to understand which insns to pull into delay slots and which |
| insns to leave alone. |
| (schedule_block): (Re-)compute all register life information here. |
| No longer dependent on flow to keep `basic_block_live_at_end' |
| allocated. |
| (schedule_insns): Recompute LABEL->BASIC BLOCK mapping, so we |
| can compute register life information. |
| * rtl.c (add_dependence): New function to add and remove insn |
| dependencies. If an insn (I2) must execute after another |
| (I1), we add an INSN_LIST containing I1 to I2's LOG_LINKS. |
| If such an INSN_LIST is already in I2's LOG_LINKS, we don't |
| add a second. |
| (remove_dependence): Similar, but removes dependencies. May |
| not actually be needed. |
| * toplev.c (compile_file,rest_of_compilation): Added code for |
| dumping info about insn scheduling. |
| |
| Fri Aug 24 17:24:03 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * Implement `aligned (INTEGER)' attribute for real. |
| * c-parse.y (attrib): Really record info for `aligned' attribute. |
| Don't warn for any integer alignment. |
| (attribute_list): Make a list. |
| (initdcl, notype_initdcl, component_declarator): Handle that info. |
| * c-common.c (decl_attributes): New function. |
| |
| Fri Aug 24 07:12:05 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * genattrtab.c (insn-config.h): This is really needed after all. |
| * Makefile.in (genattrab.o): Show dependency on insn-config.h. |
| |
| * local-alloc.c (block_alloc): Don't update qty_birth for a |
| register whose quantity is <= 0. |
| |
| * fold-const.c (decode_field_reference): Actually obtain unsigned |
| type where one is wanted. |
| (merge_component_references): Correctly test for mutually exclusive |
| conditions. |
| |
| Thu Aug 23 14:56:44 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-typeck.c (digest_initializer): No pedantic warning for string |
| and array of unsigned char. |
| |
| * tree.c (get_identifier): Do id_clash_len stuff if length equals that. |
| |
| Thu Aug 23 10:30:10 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-tree.h (CLASSTYPE_CID): Key off of TYPE_MAIN_VARIANT. |
| |
| Thu Aug 23 06:44:33 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * out-romp.c (romp_pushes_stack): Don't count |
| current_function_pretend_args_size in size of stack. |
| |
| Wed Aug 22 18:00:07 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * tm-a29k.h, tm-a29kunix.h, xm-a29k.h, a29k.md, out-a29k.c: New files. |
| |
| * config.gcc (a29k-unix): New target. |
| |
| * calls.c (expand_call): Allow FUNCTION_ARG to return an EXPR_LIST |
| specifying multiple registers to load. |
| (store_one_arg): Likewise; also delete handling of fully-in-register |
| case, which hasn't been handled here for a while. |
| * expr.c (emit_library_call): Our subset of calling sequence for |
| library routines does not include multiple registers for an arg. |
| |
| Tue Aug 21 17:44:49 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * make-cc1.com: Compile and link version.c. |
| |
| * Makefile.in (install-gnulib): Create libg.a if none already. |
| |
| * expr.c (convert_move): Handle expand_unop retval not same as target. |
| |
| * reload.c (find_reloads): For register letters, don't win if BLK. |
| |
| * sdbout.c (sdbout_toplevel_data): Fix error message. |
| |
| * protoize.c (open): Prototype deleted. |
| |
| * flow.c (mark_set_1, mark_used_regs): Update reg_first_use. |
| (allocate_for_life_analysis): Allocate and clear it. |
| * local-alloc.c (block_alloc): Calculate INSN_MAP. |
| Get first use of each reg from reg_first_use. |
| |
| * tm-vms.h (MAYBE_VMS_FUNCTION_PROLOGUE): Distinguish C from C++. |
| (EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS): Add a const data section. |
| (ASM_OUTPUT_EXTERNAL): Use that section. |
| (SELECT_SECTION): Go to that section when appropriate. |
| |
| Tue Aug 21 18:26:47 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reorg.c (fill_simple_delay_slots): Mark anything referenced by an |
| insn that will be placed in a delay slot in the epilogue as being |
| needed at the end of the function. |
| |
| * cse.c (constant_pool_entries_found): New static var. |
| (cse_main): Initialize it. |
| (use_related_value): Correctly look for registers in hash table. |
| (fold_rtx): Fold constant pool entries to their constants and |
| set constant_pool_entries_found. |
| (cse_insn): If we weren't able to place a constant in an insn |
| and we have previously seen constant pool entries used, set up |
| to try the constant pool entry also. |
| |
| Mon Aug 20 12:14:27 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * function.c (assign_parms): Set LAST_NAMED for parm before dummy. |
| See August 9 change in c-parse.y. |
| |
| * gcc.c (process_command): Split -oFOO into two arguments. |
| |
| * stmt.c (expand_asm_operands): Handle COMPONENT_REF and |
| ARRAY_REF directly as output operands. Avoids crash if BLKmode. |
| |
| * c-parse.y, cplus-parse.y, objc-parse.y: Include stdio before input.h. |
| * input.h: Declare finput. |
| |
| * expr.c (emit_push_insn): Don't adjust for EXTRA separately |
| if will have to adjust the stack anyway. |
| |
| * m68k.md (*sh*si3): On 68000, optimize case of >= 16 bits. |
| |
| * varasm.c (decode_rtx_const): Don't dereference a PLUS |
| subexpression of a CONST twice. |
| |
| Sun Aug 19 21:51:51 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * toplev.c (finput): Define here. |
| * *-parse.y (lineno, finput): Duplicate definitions deleted. |
| |
| * global-alloc.c (find_reg): Test best_reg against 0, |
| not first_pseudo_register. |
| |
| Sun Aug 19 17:48:22 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * explow.c (plus_constant): If adding to constant pool constant, |
| return a new one. |
| |
| * genattrtab.c: Need not include insn-config.h. |
| |
| Sun Aug 19 17:23:10 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * tm-hp9k320bsd.h (CPP_SPEC): Def __HAVE_68881__ like __HAVE_FPU__. |
| |
| * Makefile.in (USE_ALLOCA): Test was backwards. |
| (USE_HOST_ALLOCA): Likewise. |
| |
| Sun Aug 19 09:58:16 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * stmt.c: Fixes from 2.0 for fixup_goto incorporated here. |
| |
| * cplus-decl2.c (write_vtable_entries): Don't test TREE_EXTERNAL |
| of DECL_CONTEXT (FN). TREE_EXTERNAL is not meaningful for types. |
| |
| Fri Aug 17 22:14:09 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * optabs.c (emit_cmp_insn): Don't abort after floating lib cmp. |
| |
| Thu Aug 16 23:16:40 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * varasm.c (assemble_variable, assemble_static_space): Don't |
| call data section if -fshared-data. If this section is needed, |
| it should be entered from elsewhere, and this is believe to be |
| done in all known cases. |
| (output_constant_pool): Add support for ASM_OUTPUT_SPECIAL_POOL_ENTRY |
| which writes certain constant pool entries specially; used for TOC |
| on RS/6000. |
| (assemble_external_libcall): New function. |
| * expr.c (emit_library_call): Call it. |
| |
| * reorg.c (mark_target_live_regs): Don't follow around infinite loops. |
| |
| * varasm.c (struct rtx_cont): Don't use enums in bit fields if |
| ONLY_INT_FIELDS is defined. |
| |
| * cse.c (remove): Rename to remove_from_table to avoid conflict |
| with `remove' defined in stdio.h. |
| |
| Thu Aug 16 22:44:35 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * stmt.c: fixup_gotos must ignore blocks started after the goto. |
| (block_start_count): New variable, and slot in some structures. |
| (expand_function_start): Initialize it. |
| (expand_start_bindings): Increment it and store in struct nesting. |
| (expand_goto): Store it in struct goto_fixup. |
| (fixup_gotos): Compare fixup's count with block's count. |
| (save_stmt_status, restore_stmt_status): Handle block_start_count. |
| * function.h (struct function): Make slot to save it. |
| |
| Thu Aug 16 18:02:03 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * obtabs.c (expand_fix, expand_float): Support direct conversion |
| between SFmode and fixed modes by library call. |
| |
| Wed Aug 15 18:36:28 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cccp.c (main): Allow -M to work on .s files by checking for .s |
| and .S suffixes when writing dependencies. |
| |
| * reorg.c (optimize_skip, fill_eager_delay_slots, try_host_target): |
| Don't need to call can_reverse_comparison_p because invert_jump is |
| safe for floating-point; only reverse_condition isn't. |
| |
| Wed Aug 15 15:50:36 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * dbxout.c (dbxout_type): Skip past const and volatile qualifiers |
| that might appear in method names. |
| |
| Wed Aug 15 15:44:17 1990 Richard Stallman (rms at mole.ai.mit.edu) |
| |
| * c-parse.y (hash, is_reserved_word): Use __inline. |
| |
| * cccp.c (main): Support -dN and -dD. Support -lint. |
| (dump_macros): Two new alternatives. |
| (handle_directive): Output macro definitions if -dN or -dD. |
| (rescan): Check comments if -lint. |
| (get_lintcmd): New subroutine. |
| |
| * c-decl.c (c_decode_option): Handle -fshort-double. |
| (init_decl_processing): Create double_type_node accordingly. |
| |
| * c-decl.c (c_decode_option): Handle -Wno... |
| |
| Tue Aug 14 23:10:40 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * explow.c (break_out_memory_refs): Don't break out reference if |
| constant but not legitimate constant for a machine insn. |
| (memory_address): Only put legitimate constants, rather than all |
| constants, into registers if they are used as an address. |
| |
| Tue Aug 14 14:34:02 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * reorg.c (steal_delay_list): Can't put something in a |
| non-annulled delay slot that can trap. |
| |
| * tm-i860.h (GO_IF_LEGITIMATE_ADDRESS): Typo testing offset alignment. |
| |
| * cccp.c (do_assert, do_unassert, check_assertion): New functions. |
| (compare_keyword_lists, read_keyword_list, free_keyword_list): |
| New functions. |
| * cexp.y (yylex): Allow `#' as token. |
| Return name and length of symbol. |
| (keywords): New nonterminal. |
| (expr): Recognize # to test an assertion. |
| (U_CHAR, struct arglist): Data types copied from cccp.c. |
| (%union): New alternatives `keywords' and `name'. |
| |
| Mon Aug 13 22:26:19 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * tm-romp.h (SLOW_BYTE_ACCESS): Set to 0. |
| |
| * expmed.c (store_bit_field, extract_bit_field): Use get_best_mode |
| to select mode to use for accessing memory when bitfield insns don't |
| accept memory. |
| |
| * c-common.c (rewrite_for_merged_ref, make_merged_ref): Deleted. |
| (merge_component_comparisons): Delete from here. |
| * c-tree.h (merge_component_comparisons): No longer global. |
| * c-convert.c (build_binary_op_nodefault): Don't try to merge component |
| references here; now done in fold. |
| * cplus-typeck.c (build_binary_op_nodefault): Likewise. |
| * Makefile.in (fold-const.o): Now includes flags.h. |
| * fold-const.c: Likewise. |
| (STRIP_NOPS): New macro. |
| (decode_field_reference, all_ones_mask): New functions. |
| (merge_component_references): Put rewritten version here. |
| This fixes bugs in the way that comparisons with non-equal |
| constants (!p->a && p->b) are handled and in endianness checking. |
| Also accepts more general comparisons, and, in particular, its |
| own output so more than a pair of operations can be merged. |
| (fold): Call it for TRUTH_{AND*,OR*}_EXPR. |
| |
| * tree.def (BIT_FIELD_REF): New tree code. |
| * expr.c (get_inner_reference): Support BIT_FIELD_REF. |
| If bitfield is a complete mode-sized unit, return that mode; if it |
| is a subset of bits within a mode-sized unit, return VOIDmode. |
| (expand_assignment): Check for BIT_FIELD_REF. |
| Use mode returned from get_inner_reference to see if bit field. |
| (store_constructor): Likewise. |
| (store_field): Don't pass arg BIT_FIELD; use MODE == VOIDmode |
| instead. All callers changed. |
| (expand_expr, case BIT_FIELD_REF): New case. Handled same as |
| COMPONENT_REF. |
| Use mode returned from get_inner_reference rather than DECL_BIT_FIELD. |
| (expand_increment): Must stabilize BIT_FIELD_REF. |
| (do_jump, case NOP_EXPR): Check for inner BIT_FIELD_REF and ARRAY_REF. |
| (do_jump, case COMPONENT_REF): Generalize to handle BIT_FIELD_REF |
| and some ARRAY_REFs also. |
| * fold-const.c (operand_equal_p): Handle BIT_FIELD_REF. |
| * tree.c (staticp): Rework to use switch instead of if-then-else. |
| Add support for BIT_FIELD_REF. |
| (stabilize_reference, simple_cst_equal): Support BIT_FIELD_REF. |
| |
| * c-common.c (truthvalue_conversion): Rework to use switch rather |
| than if-then-else. |
| Generate either TRUTH_{OR*|AND*}_EXPR or comparison operations as |
| much as possible. |
| Handle REAL_CST, ADDR_EXPR, ABS_EXPR, FLOAT_EXPR, FFS_EXPR, |
| LROTATE_EXPR, RROTATE_EXPR, BIT_XOR_EXPR, and MINUS_EXPR. |
| Call fold for COND_EXPRs that we make. |
| * c-convert.c (build_unary_op): invert_truthvalue can't return 0, |
| so don't check for it. |
| (invert_truthvalue): Delete from here. |
| (convert_to_integer, build_conditional_expr): Try to fold COND_EXPR. |
| * c-plus-cvt.c (convert_to_integer): Likewise. |
| * cplus-typeck.c (build_conditional_expr): Likewise. |
| (build_unary_op): invert_truthvalue can't return 0. |
| (invert_truthvalue): Delete from here. |
| * fold-const.c (invert_truthvalue): Move to here. |
| Don't invert floating-point test. |
| Look inside conversions. |
| Use recursive call to negate inside logical operations rather than |
| building a TRUTH_NOT_EXPR. |
| Allow only certain TREE_CODEs as operands; abort for the rest. |
| (fold_convert): Accept second argument that is item being |
| converted to ensure that NOPs have been stripped. |
| (operand_equal_p): Return 0 if either operand has side effects. |
| If both integer or real constants, check the values. |
| Do a more thorough test to see if two items are identical; |
| specifically, compare the operands of simple TREE_CODEs. |
| (omit_one_operand, distribute_bit_expr): New functions. |
| (make_bit_field_ref, optimize_bit_field_compare): Likewise. |
| (fold): Remove LOSES; now done explicitly or by calling |
| omit_one_operand. Some previous uses weren't needed. |
| Try to fold any COND_EXPRs and some COMPOUND_EXPRs we make. |
| Remove pair of NEGATE_EXPRs and BIT_NOT_EXPRs. |
| Convert "- (a - b)" to "b - a" for non-floating-point. |
| ABS_EXPR applied to ABS_EXPR or NEGATE_EXPR is ABS_EXPR of inner arg. |
| Convert "a + (-b)" to "a - b" and "a - (-b)" to "a + b". |
| If adding ANDs with constants that have no bits, in common, try |
| bitwise-or, since we may then be able to distribute the operation, |
| e.g., (a & 7) + (a & 0x70) -> a & 0x77. |
| Add missing last arg to operand_equal_p call. |
| Call distribute_bit_expr for BIT_AND_EXPR and BIT_IOR_EXPR. |
| Exclusive-or with all ones is bit negation. |
| If second arg of BIT_AND_TC_EXPR is constant, convert to BIT_AND_EXPR. |
| Handle TRUTH_NOT_EXPR by calling invert_truthvalue. |
| Call optimize_bit_field_compare for comparisons of bitfields. |
| Handle "a ? 1 : 0" and "a ? 0 : 1" as test or negated test. |
| Simplify "a & 4 ? a & 4 : 0" and "a ? a : 0" to remove conditonal. |
| * stor-layout.c (get_best_mode): New function. |
| * machmode.h: Define it. |
| * tree.c (integer_pow2p): New function. |
| * tree.h: Declare new functions and functions no longer static. |
| |
| Mon Aug 13 17:45:13 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * config.gcc (sun3-mach): New alternative. |
| * tm-sun3mach.h: New file. |
| |
| * m68k.md (bfextu patterns): Set CC_NOT_NEGATIVE. |
| |
| Mon Aug 13 10:14:37 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-decl2.c (flag_minimal_debug): Now is default is |
| -fflag-minimal-debug. |
| |
| * cplus-tree.c (virtual_member): Return the assoc of a non-virtual |
| basetype that comes from a virtual baseclass. Changed callers |
| which used to call `value_member' to call virtual_member instead. |
| |
| Mon Aug 13 06:54:04 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * optabs.c (expand_twoval_binop): Fix typo. |
| |
| * cse.c (lookup_as_function): Don't assume CODE is a unary |
| operation. It might be a binary op or REG. |
| |
| Sun Aug 12 21:42:55 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expr.c (expand_expr, case COND_EXPR): Don't abort if first arg of |
| COND_EXPR isn't a comparison; just suppress the do_store_flag call. |
| |
| Sun Aug 12 14:26:45 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * tree.h (enum built_in_function): Delete comma after last name. |
| * c-parse.h (enum rid): Likewise. |
| * expr.h (enum optab_methods): Likewise. |
| * stab.h: Add dummy enum name at end. |
| |
| * config.gcc (genix): Set tm_file. |
| * tm-genix.h (ASM_OUTPUT_DOUBLE): New overriding definition. |
| |
| * tree.h (struct tree_type, struct tree_decl): Handle ONLY_INT_FIELDS. |
| * rtl.h (struct rtx_def): Likewise. That macro goes in xm-*.h. |
| |
| Sat Aug 11 16:56:19 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cplus-decl.c (finish_function): Check value of HAVE_return before |
| calling gen_return. |
| |
| * reorg.c (optimize_skip): Don't reject skip when we jump around an |
| insn and merge at the return point. |
| |
| Fri Aug 10 17:00:31 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * dbxout.c (dbxout_parms, dbxout_reg_parms): Ignore nameless parms. |
| * sdbout.c (sdbout_parms, sdbout_reg_parms): Ignore nameless parms. |
| |
| Fri Aug 10 14:14:08 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * recog.c (indirect_operand): Modes need not agree if MODE == VOIDmode; |
| remove test from here since it is in memory_operand, which this calls. |
| |
| Thu Aug 9 15:19:17 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * c-decl.c (store_parm_decls): If function has variable number of args, |
| put a dummy decl at end of parmlist. |
| * c-parse.y (unary_expr): Handle &... with address of dummy decl. |
| |
| * tm-*.h (LEGITIMIZE_ADDRESS): Go to WIN instead of returning. |
| |
| * cccp.c (handle_directive): Add code to support `# DIGIT' |
| but disable it for the time being. |
| |
| * tm-hp9k320.h (CPP_SPEC): Define _HPUX_SOURCE if not ANSI. |
| (CPP_PREDEFINES): Don't define it here. |
| Do define alternatives with __ prepended. |
| |
| Wed Aug 8 14:00:26 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * out-romp.c: Don't include hard-reg-set; already in insn-output.c. |
| |
| * explow.c: insn-flags.h is needed to see if "probe" insn exists. |
| * Makefile.in (explow.o): Likewise. |
| |
| Wed Aug 8 13:35:00 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * cccp.c (check_macro_name): Warn if name is `defined'. |
| |
| * tm-sun386i.h (ASM_IDENTIFY_GCC): If profiling, put a NOP after |
| gcc_compiled. |
| |
| Tue Aug 7 23:51:38 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * toplev.c (main): Handle -W options like -f options. |
| This supports -Wnounused, and such like. |
| (warn_uninitialized): New variable, controls those warnings. |
| Set it for -Wuninitialized, and for -W. |
| |
| Tue Aug 7 13:24:58 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * genextract.c (walk_rtx): Fix typo in MATCH_PARALLEL case. |
| |
| * explow.c (allocate_dynamic_stack_space): Pass size of allocated stack |
| to gen_probe. |
| |
| Tue Aug 7 12:19:46 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * pyr.md (extendsfdf2, truncsfdf2, float*, fix*): Use `&'. |
| |
| Tue Aug 7 07:13:54 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * jump.c (find_cross_jump): Include a USE or CLOBBER in cross jump |
| but don't count it against minimum size. |
| Never return when cross-jump hasn't actually been done. |
| |
| Mon Aug 6 18:50:12 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * varasm.c: Include regs.h. |
| (decode_reg_name): Remove extern for reg_names; it is in regs.h. |
| * Makefile.in (varasm.o): Depends on regs.h. |
| |
| Mon Aug 6 12:46:07 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * c-decl.c (grokdeclarator): Don't warn if initialized fcn is extern. |
| (start_decl): Don't warn at all for initialized extern. |
| |
| * final.c (final_start_function): Handle PROFILE_BEFORE_PROLOGUE. |
| (profile_function): New subroutine. |
| |
| * tm-i386sco.h: New file. |
| * config.gcc (i386-sco): New alternative. |
| |
| * gcc.c (ENDFILE_SPEC): New macro. |
| (do_spec_1): Handle %E. |
| (link_spec): Use %E. |
| |
| * xm-i386.h (alloca): Define without arg. |
| |
| * Makefile.in (stage*): Use RANLIB_TEST. |
| (LIMITS_H): New variable. |
| (USER_H): Use that. |
| * make-i386sco: New file. |
| |
| Sun Aug 5 13:11:04 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * rtl.h: Delete all machine mode defns; include machmode.h instead. |
| * tree.h: Likewise. |
| * machmode.h: New file. |
| * stor-layout.c: No longer include rtl.h. |
| * Makefile.in: (RTL_H, TREE_H): Add machmode.h. |
| (stor-layout.o): No longer depends on RTL_H. |
| |
| * c-common.c (binary_op_error, shorten_compare): Should no longer |
| have been static when moved here. |
| |
| Sun Aug 5 12:57:02 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * stor-layout.c (layout_record, layout_union): Test value of |
| PCC_BITFIELD_TYPE_MATTERS for being nonzero, if it is defined. |
| * tm-*.h: Define with value 1. |
| * tm-vax.h (PCC_BITFIELD_TYPE_MATTERS): Depends on -mvaxc-alignment. |
| |
| * proto.h: New file. |
| * Makefile.in (USER_H): Add that file. |
| |
| Sun Aug 5 00:04:08 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-decl2.c (grokfield): It is no longer legal to specify |
| the initializer for a static const member in the class |
| declaration. Dealing with default initializers is basically |
| impossible. |
| |
| * cplus-init.c (build_delete): Don't wrap `addr' in a SAVE_EXPR |
| until it is in fact an address. This allows us to call |
| destructors on the return values of function calls. |
| |
| * cplus-typeck.c (commontype): Fixed bug in OFFSET_TYPE case which |
| led to infinite recursion (since we did not reduce the types |
| before we recursed). |
| |
| * cplus-lex.c (check_newline): Make `#pragma implementation' more |
| forgiving. |
| |
| * cplus-init.c (expand_aggr_init): Changed Jan 20th change so that |
| we test whether TYPE has a constructor defined, and we do not test |
| at all whether INIT was from a GNU constructor expression or not. |
| |
| * cplus-typeck.c (build_modify_expr_1): Don't return |
| `error_mark_node' unless there really was an error. If there is |
| no work to do, return `integer_zero_node'. |
| |
| * cplus-class.c (propagate_basetype_offsets): Count the space |
| between baseclasses, not just the space they occupy. |
| |
| * cplus-typeck.c (commontype): Don't drop the exceptions that are |
| raised by functions and methods. |
| |
| * cplus-cvt.c (convert_to_real): Fix if/else level problem in |
| case where EXPR is of aggregate type. |
| |
| * cplus-decl.c (finish_decl): Emit a line-number note to give |
| users a chance to set a breakpoint before the initialization of an |
| object takes place. |
| |
| * cplus-class.c (build_method_call): If the function we get is not |
| directly from the object we have, call `convert_pointer_to' if the |
| object uses multiple inheritance or virtual baseclasses. |
| |
| * cplus-typeck.c (build_binary_op_nodefault): Don't call |
| `convert_to_pointer' with an argument that might be |
| the integer zero. |
| |
| * cplus-method.c (hack_identifier): Look for DECL_REFERENCE_SLOT |
| in RESULT_DECLs as well. |
| |
| * cplus-init.c (build_vec_delete): Don't forget to deallocate the |
| container if requested. Really use AUTO_DELETE and |
| AUTO_DELETE_VEC with the same interpretation as `build_delete' |
| gives to its AUTO_DELETE parameter. |
| |
| Sat Aug 4 22:08:44 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * jump.c (find_cross_jump): Use prev_nonnone_insn. |
| Don't cross-jump into the middle of a USE-CALL_INSN-CLOBBER |
| block; doing so can confuse reorg.c. |
| |
| * optabs.c (expand_binop, expand_binop, expand_twoval_binop): |
| If predicate doesn't match, ensure that operand is in a pseudo |
| register. Current code assumes that any register will suffice, |
| but an insn may want to reject certain hard registers. |
| (expand_unop, emit_unop_insn, emit_cmp_insn): Likewise. |
| |
| Sat Aug 4 15:29:09 1990 Michael Tiemann (rms at sugar-bombs.ai.mit.edu) |
| |
| * function.c (assign_parms): For parms passed by reference, |
| make the memory object's mode agree with the parm's original |
| type mode. |
| * calls.c (expand_call): Fixed braino in building argument |
| reference when FUNCTION_ARG_PASS_BY_REFERENCE is defined. |
| |
| * varasm.c (assemble_variable): Hack our way around the problem |
| that static class members look like initialized variables for the |
| purposes of establishing FIRST_GLOBAL_OBJECT_NAME. |
| |
| * cplus-lex.c (reinit_parse_for_method): Give error message for |
| common mistake of forgetting the function body. |
| |
| * cplus-typeck.c (build_component_ref): Make better error message |
| when field is not found. |
| |
| * cplus-class.c (finish_struct): TYPE_GETS_*_INIT_REF comes from |
| members as well. |
| |
| * cplus-typeck.c (c_expand_return): Give warning about returning |
| non-lvalues that come from functional casts. |
| |
| * cplus-search.c (get_base_distance): Changed to follow leftmost |
| path only when PARENT == TYPE_MAIN_VARIANT (PARENT). |
| |
| * cplus-class.c (modify_vtable_entries): Call get_base_distance |
| with 0 path_ptr, since we do not appear to use the path computed. |
| |
| Fri Aug 3 07:37:30 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * final.c (leaf_function_p): Delete line advertently retained |
| after change of July 29. |
| |
| * reorg.c (optimize_skip, try_hoist_target): Don't invert jump |
| unless can_reverse_comparison_p says it is OK. Use invert_jump |
| to do it. |
| (fill_simple_delay_slots): Another way flow of control can merge is |
| for two insns to jump to the same place; try to get insns from there. |
| (mostly_true_jump): Return 2 for a jump very likely to be true (the |
| branch back to the start of a loop). |
| (fill_slots_from_thread): Accept new arg LIKELY. If true, see if can |
| put increment in delay slot and undo it after the end of the loop. |
| (fill_eager_delay_slots): Pass new arg to fill_slots_from_thread. |
| If previous insn is conditional jump that also didn't get a delay |
| slot, see if swapping targets helps. |
| |
| Fri Aug 3 00:18:35 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * cccp.c (MAKE_POS): Avoid constant of uncertain signedness. |
| |
| * gnulib2.c (__bb_init_func): Add dummy function to prevent warning. |
| |
| Thu Aug 2 17:44:59 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * output.h (current_function_return_rtx): Add new variable. |
| * function.h (return_rtx): Likewise. |
| * function.c (push_function_context, pop_function_context): Save |
| and restore current_function_return_rtx. |
| (assign_parms, expand_function_start): Set current_function_return_rtx |
| to what is put in DECL_RTL (DECL_RESULT (current_function_decl)). |
| * reorg.c: No longer uses tree.h. |
| (dbr_schedule): Get result RTL from current_function_return_rtx instead |
| of reading it from current_function_decl. |
| * Makefile.in (reorg.o): No longer depends on TREE_H. |
| |
| * cse.c (remove_invalid_refs): Only invalidate an entry if it |
| references the actual register, not merely something sharing its |
| quantity. |
| (cse_insn): Don't abort if SRC and SRC_EQUIV map to different |
| hash classes. Merge them instead. |
| |
| * romp.md (mulsi3): Emit call to lmul$$ as a regular insn |
| rather than a CALL_INSN. |
| (divsi3, modsi3, udivsi3, umodsi3, call_libfcn): Deleted. |
| (divmodsi4, udivmodsi4): New patterns to call ldiv$$ and uldiv$$ |
| as a normal insn to allow CSE'ing of MOD with DIV. |
| |
| Wed Aug 1 21:56:08 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * c-parse.y (yylex): Don't warn about non-decimal unsigned by default |
| if `u' was specified. Add similar warning for long and long long. |
| |
| Tue Jul 31 23:31:46 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * tm-encore.h (FUNCTION_PROFILER): Override, putting `.' in label. |
| |
| * xm-vms.h (const): Delete the definition. |
| |
| Mon Jul 30 18:33:04 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * c-typeck.c (convert_for_assignment): Normally no warning |
| between char * and unsigned char *, etc. |
| (convert_arguments): Include arg number in incomplete type warning. |
| |
| Mon Jul 30 07:38:55 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * jump.c (invert_jump): Don't do anything with labels if NLABEL |
| equals JUMP_LABEL. |
| (redirect_jump): Don't try to reference LABEL_NUSES if olabel is |
| zero (meaning this is a return insn). |
| (redirect_exp): Handle case of converting return to jump to |
| label. |
| |
| * dbxout.c (dbxout_parms): Allow parameter at zero offset from |
| AP to be represented as (MEM (REG ...)). |
| * sdbout.c (sdbout_parms): Likewise. |
| |
| Sun Jul 29 22:51:00 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * optabs.c (expand_twoval_binop_convert): Deleted. |
| (expand_twoval_binop): Rework to be handle predicates, modes, and |
| failures in a manner consistent with expand_binop. |
| Move code from expand_twoval_binop_convert inline and rework to |
| no longer hard-wire SImode and to handle failure. |
| |
| * config.gcc: Finish change of July 24th to have make_var_file depend |
| on host machine. |
| |
| * jump.c: Now includes insn-flags.h. |
| (jump_optimize): Try to put a RETURN at the end of the function if |
| control flows through to it. |
| JUMP_LABEL can now be zero for a RETURN or conditional RETURN. |
| Try to convert jump to end of function into (possibly conditional) |
| RETURN. |
| Use next_active_insn instead of next_real_insn; these do the same |
| thing prior to reload, after which USE and CLOBBERs don't matter. |
| redirect_jump may now fail so don't set CHANGED if it does. |
| Delete optimization of jump to RETURN; now subsumed by follow_jumps. |
| Reset INSN_CODE if changing conditional jump to unconditional. |
| (cond_jump_p): Conditional RETURN is conditional jump. |
| (follow_jumps): Change argument name to AFTER_RELOAD. |
| If not after reload, do not chain across a USE or CLOBBER. |
| Recognize RETURN insns. |
| (tension_vector_labels): Likewise. |
| (redirect_jump, redirect_exp): If NLABEL is zero, turn JUMP into a |
| (possibly conditional) RETURN; use validate_change to see if such an |
| insn exists. |
| Now returns non-zero if succeeds, 0 otherwise. |
| Unconditional RETURN looks like (RETURN), not (SET (PC) (RETURN)). |
| (thread_jumps): Ignore any type of RETURN insn. |
| * Makefile.in (jump.o): Depends on insn-flags.h. |
| * loop.c (strength_reduce): Don't confuse conditional return with |
| jump to top of loop when LOOP_TOP == 0. |
| * final.c (leaf_function_p): No longer static; no longer takes an arg. |
| (final_start_function): Don't pass START to leaf_function_p. |
| * romp.md (return pattern): Convert to a named pattern. |
| |
| Sun Jul 29 16:05:27 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * tm-vms.h (ASM_OUTPUT_EXTERNAL): Check TREE_READONLY. |
| |
| * xm-vms.h (alloca): Use built-in alloca. |
| |
| Sun Jul 29 06:47:33 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reorg.c (fill_slots_from_thread): Restore inadvertantly deleted |
| lines. |
| |
| Fri Jul 27 19:53:18 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * Makefile.in (reorg.o): Depends on tree.h, basic-block.h, regs.h, |
| and output.h |
| |
| Fri Jul 27 16:30:03 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * varasm.c (assemble_variable): Handle ASM_OUTPUT_SHARED_COMMON |
| and ASM_OUTPUT_SHARED_LOCAL. |
| |
| * tm-encore.h (SHARED_SECTION_ASM_OP): New macro. |
| (ASM_OUTPUT_SHARED_COMMON, ASM_OUTPUT_SHARED_LOCAL): New. |
| All this waiting for papers from pabuhr@watmsg.waterloo.edu. |
| |
| Fri Jul 27 16:10:02 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * make-romp (CC): Set up to allow use of hc. |
| |
| Fri Jul 27 15:07:00 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * combine.c (subst): Handle (ASHIFT 1 x) in (EQ (AND ... y) 0) |
| only if little-endian. |
| |
| Thu Jul 26 23:19:15 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * expmed.c (expand_shift): Consistently call protect_from_queue |
| before doing anything else. |
| Always put operand1 of extzv into a register because it is SImode |
| and we assume that this means a register. |
| |
| Thu Jul 26 14:18:11 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * varasm.c (assemble_variable): Delete dead code. |
| DATA_ALIGNMENT takes tree and current alignment and gives new |
| alignment for a non-automatic variable of that type. |
| Also apply CONSTANT_ALIGNMENT to the initial value; it now takes |
| the constant and old alignment and gives the new alignment. |
| Adjust DECL_ALIGN to the resulting alignment. |
| Use floor_log2 consistently instead of duplicating its function. |
| (get_or_assign_label): Use CONSTANT_ALIGNMENT instead of DATA_ALIGNMENT |
| and pass type instead of decl. |
| * expr.c (get_pointer_alignment): Rework to: distinguish reliably |
| between expressions giving the address and those giving the item being |
| addressed; use the alignment from the type of the object being |
| pointer to; return 0 if the type is not a pointer; and other |
| miscellaneous changes. |
| (string_constant): Skip CONVERT_EXPR and NON_LVALUE_EXPR as well |
| as NOP_EXPR. |
| (expand_builtin): Allow get_pointer_alignment to fail, in which case |
| we call the actual function. |
| * stmt.c (expand_decl): Set actual alignment obtained into DECL_ALIGN |
| since it may be better aligned than required and get_pointer_alignment |
| can take advantage of this. |
| * tm-gmicro.h, tm-pyr.h, tm.romp-h: Add or replace definitions of |
| CONSTANT_ALIGNMENT to word-align string constants and |
| DATA_ALIGNMENT to word-align character arrarys for builtin memory |
| functions. |
| |
| * fold-const.c (rshift_double): Reset carry after each shift of |
| one bit. |
| |
| * vax.md (ashrsi3): If right shift by constant, emit as ASHIFTRT. |
| (ashrsi3_const): New pattern to match it. |
| (casel): Delete patterns no longer needed. |
| * cse.c (cse_insn): Remove unneeded part of change of July 23. |
| (fold_rtx): Convert shift with negative constant count to shift in |
| the opposite direction. |
| * combine.c (subst): Likewise. |
| |
| * emit-rtl.c (init_emit_once): Initialize arg_pointer_rtx before |
| struct pointer and static chain values in case they want to use it. |
| |
| Thu Jul 26 12:31:02 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * final.c (final_scan_insn): Align label table to boundary appropriate |
| for items of its size. |
| (get_attr_length, shorten_branches): Allow for label table alignment. |
| |
| Wed Jul 25 15:06:44 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * fixincludes: Handle uses of _IO* followed by spaces. |
| Change redirections for cd when testing that directory exists. |
| |
| By Tiemann: |
| |
| * emit-rtl.c (next_cc0_user): Handle insns in which cc0 |
| is set and used in the same insn. |
| |
| * final.c (leaf_function_p): Look inside INSNs which contain |
| a delayed-call sequence. |
| (final_start_function): Test `only_leaf_regs_used' before |
| `leaf_function_p', since that is likely to be faster. |
| (final_scan_insns): Normally we don't have NOTICE_UPDATE_CC |
| take action when processing the path of an annulled branch, |
| since that path does not affect the cc's of the fall-through |
| insns at all. However, we cannot always ignore the effect of |
| the cc's when processing a delayed annulled branch: when the |
| delayed annulled branch follows a label and carries a |
| REG_CC_STATUS note, that note must be processed. |
| |
| * genattr.c (main): Generate #defines for annulled branches |
| which are consistent with documentation. |
| |
| * reorg.c: Finish recent rework by modifying code specific to |
| machines that have annulling branches. |
| |
| * c-common.c (merge_component_comparisons): Previous logic did |
| not handle cases of (A == 1) && (B == 1), (A != 0) && (B != 0), |
| and (A != 1) || (B != 1). Fixed by expanding the logic out |
| longhand and letting the compiler do the proper cross-jumping. |
| |
| * tm-vms.h (ASM_OUTPUT_EXTERNAL): Use assemble_name. |
| |
| * expr.c (expand_expr): For BIND_EXPR, do the init for all vars. |
| |
| * stupid.c: Include flags.h. |
| * genrecog.c (main): Make insn-recog.c include flags.h. |
| |
| Sun Jul 22 12:04:43 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-except.c (cplus_expand_end_except): If the user gives a |
| default handler, the exception is considered caught in that |
| handler. |
| * cplus-parse.y (except_stmts): Rest of fix went here, in DEFAULT |
| case. |
| |
| * cplus-decl.c (finish_decl): Don't emit cleanups twice. |
| |
| * cplus-class.c (finish_struct_bits): Don't call |
| `fixup_vbase_offsets'. |
| * cplus-tree.c (fixup_vbase_offsets): #if 0 this function. |
| |
| * cplus-cvt.c (build_default_binary_type_conversion): Handle |
| arguments which are REFERENCE_TYPE. |
| |
| * cplus-method.c (prepare_inline): Set DECL_CONTEXT of this |
| function's parameters. |
| |
| * cplus-decl.c (grokfndecl): When adding a new virtual function |
| entry, RAISES may change a second time. |
| |
| Thu Jul 5 10:44:39 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-decl2.c (grokfield): Static consts need not be initialized |
| in the class definition. |
| |
| Mon Jul 2 06:12:49 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-init.c (resolve_offset_ref): If BASETYPE is not a base |
| type for the current class, give error and return. |
| |
| Sun Jul 1 00:18:47 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-decl.c (finish_function): Throw away more code if we have |
| an inline function from the interface. |
| |
| * cplus-class.c (add_virtual_function): Set DECL_VINDEX from the |
| virtual function which comes from the vtable shared by |
| CURRENT_CLASS_TYPE, if possibe. |
| |
| * cplus-typeck.c (build_binary_op): Call `default_conversion' |
| after doing type instantiation. |
| |
| * cplus-init.c (build_new): New 2.0 interpretation: `new int (10)' |
| means allocate an int, and initialize it with 10. |
| |
| * cplus-init.c (emit_base_init): Completion of fix for virtual |
| function table initialization. @@ BTW, this may now cause extra |
| virtual function table initializations. They will all be correct, |
| but they may also be redundant. GCC's optimizer doesn't know how |
| to remove even the simplest such redundancy. |
| |
| Sat Jun 30 13:54:30 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-class.c (finish_base_struct): Store BASETYPE in the |
| VFIELDS chain (in its TREE_TYPE). |
| |
| Fri Jun 29 09:26:17 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * cplus-class.c (build_vtable,prepare_fresh_vtable): Stash the |
| type that caused this vtable to be defined in DECL_CONTEXT |
| * cplus-search.c (bfs_unmark_finished_struct): Work around |
| DECL_CONTEXT conflict for vtables. @@ NOT A SOLUTION. |
| |
| * cplus-lex.c: Extend meaning of `#pragma implementation' |
| to allow files to `implement' types from general headers. |
| |
| Tue Jul 24 22:18:23 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reorg.c: Major rework. Changes includes: |
| (mark_target_live_regs): Scan code to compute which registers are |
| live at particular insns. Uses tables created by flow, REG_DEAD |
| notes, and registers set before they are used. |
| (emit_delay_sequence): Always write SEQUENCE as INSN. Many routines |
| changed to reflect this. |
| (fill_simple_delay_slots): Loop for merge point when target of jump |
| comes back to fallthrough code. Try to get insns from there. |
| (fill_eager_delay_slots): Fallthrough and target case merged into new |
| function fill_slots_from_thread. |
| |
| * tm-romp.h, romp.md, out-romp.c, xm-romp.h, make-romp: New files to |
| support the ROMP microprocessor, used in the IBM PC RT. |
| |
| * recog.c (comparison_operator): New function. |
| |
| * jump.c (jump_optimize): If putting constant into register, see |
| if it is already present in the register. |
| |
| Tue Jul 24 15:35:04 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * c-typeck.c (build_binary_op_nodefault): Allow compare of any |
| pointer with const void *, etc. |
| |
| Tue Jul 24 17:10:59 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expr.c (get_inner_reference): New function. |
| (expand_assignment): Use it to find out about our target. |
| (expand_expr, case COMPONENT_REF): Likewise. |
| (expand_expr, case COND_EXPR): If can do store-flag, convert |
| X ? A+1 : A to A + (X!=0); fold-const made the former from the latter. |
| Only create label when we know we will need it. |
| Simplify unnessarily complex call to safe_from_p. |
| (expand_expr): Make new variable UNSIGNEDP and use it instead |
| of TREE_UNSIGNED (type). Also, consistently use existing |
| variable TYPE instead of TREE_TYPE (exp) and similarly for MODE. |
| |
| Tue Jul 24 13:50:33 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * cccp.c (collect_expansion): Error if ## at beg or end. |
| |
| * c-decl.c (grokdeclarator): Error for long, etc. with nonarith type. |
| Error for signed or unsigned with floating type. |
| Error for initialized parm. |
| |
| * config.gcc: Make make_var_file depend on host machine, not target. |
| |
| Tue Jul 24 13:40:35 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * varasm.c (decode_reg_name): Make TABLE static for non-GCC compilers. |
| |
| * c-typeck.c (type_for_size, type_for_mode): Delete from here. |
| (binary_op_error, shorten_compare, truthvalue_conversion): Likewise. |
| * cplus-typeck.c: Delete second copy from here. |
| * c-common: Move above functions to here. |
| |
| Tue Jul 24 12:20:04 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * cccp.c (path_include): Fix typo in var name. |
| |
| Mon Jul 23 17:46:57 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * config.gcc: Remove redundant assignment to tm_file for 88000. |
| Fix typo when assigning to make_var_file. |
| |
| * function.c (optimize_bit_field): Fix typo in change_address call. |
| |
| Mon Jul 23 16:59:27 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * varasm.c (decode_reg_name): Ignore % at beginning of name. |
| Support extra names defined by ADDITIONAL_REGISTER_NAMES. |
| * tm-i386.h (ADDITIONAL_REGISTER_NAMES): Define it. |
| |
| * dbxout.c (dbxout_init): Handle new macros |
| ASM_OUTPUT_MAIN_SOURCE_FILENAME and ASM_OUTPUT_MAIN_SOURCE_DIRECTORY. |
| * sdbout.c (sdbout_filename): Handle ASM_OUTPUT_MAIN_SOURCE_FILENAME. |
| |
| Mon Jul 23 16:50:32 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * tm-vax.h (NOTICE_UPDATE_CC): CALL clobbers CC if inside PARALLEL too. |
| |
| * vax.md (call_value_pop): Fix typo in argument number. |
| |
| * cse.c (cse_insn): Shift's aren't associative if in different |
| directions, even if same rtx_code. |
| Try to fold result of associating the operation in case it is now |
| trivial. |
| |
| * jump.c (mark_modified_reg): New function. |
| (thread_jumps): Look at insns between target of first jump and the |
| second jump. Mark any registers that they modify and record if they |
| modify memory. |
| Don't go past a CODE_LABEL. |
| If we pass an unconditional jump, follow it. |
| Use prev_nonnote_insn instead of explicit loop. |
| (rtx_equal_for_thread_p): Consult recorded information to see if |
| memory of registers were modified prior to second jump. |
| * Makefile.in (jump.o): Now needs hard-reg-set.h. |
| |
| Sat Jul 21 13:58:16 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * cccp.c (O_RDONLY): Define it if not defined. |
| |
| * c-decl.c (finish_decl): No error for nonstatic incomplete array. |
| |
| Sat Jul 21 08:24:04 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * alliant.md (call patterns): Function address must be memory operand. |
| * convex.md, m68k.md, mips.md, ns32k.md, tahoe.md, vax.md: Likewise. |
| |
| Thu Jul 19 16:06:02 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * cccp.c (path_include): New function. |
| (main): Call that to handle CPATH envvar. |
| |
| * varasm.c (assemble_variable): Error if size exceeds 2**32-1. |
| |
| * emit-rtl.c (init_emit_once): Pass write_symbols to this function |
| (init_emit): Not this one. All callers changed. |
| |
| Tue Jul 17 21:24:08 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * local-alloc.c (update_equiv_regs): Don't replace a register with |
| an equivalence if the insn making the equivalence has a source |
| different from the equivalent value. |
| |
| Tue Jul 17 16:47:42 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * expr.c (emit_block_move): Allow movstr* to fail. |
| |
| Tue Jul 17 15:19:18 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * emit-rtl.c (change_address): Don't call memory_address if reload |
| is in progress, not just after it has completed. |
| |
| Mon Jul 16 00:34:27 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * jump.c (can_reverse_comparison_p): New function. |
| (jump_optimize): In if (x) ... else x = 0; reverse comparison |
| if second operand of IF_THEN_ELSE is PC; use new function to |
| validate the reversal. |
| (jump_back_p): Use new function to see if safe to reverse comparison. |
| |
| Sun Jul 15 17:03:31 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * jump.c (jump_optimize): Bug in last change; reject uncond jump |
| where conditional is expected. |
| |
| * flow.c (mark_used_regs): Handle autoincrement for *p |
| followed by q = p+size (neither one dead). |
| |
| Sat Jul 14 22:37:45 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * combine.c (subst): Remove (zero_extend (subreg)) around lshiftrt. |
| Remove (and...) from second arg of shift. |
| Remove (and...) from around shift. |
| |
| Sat Jul 14 21:35:50 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * local-alloc.c (update_equiv_regs): New function. |
| (local_alloc): Call it. |
| (block_alloc): Don't handle REG_EQUIV notes here; now done in |
| update_equiv_reg. |
| |
| * calls.c: Include insn-flags.h. |
| * Makefile.in (calls.o): Likewise. |
| |
| Sat Jul 14 13:28:28 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * c-decl.c (duplicate_decls): Don't set DECL_FRAME_SIZE for builtins. |
| |
| * vax.md (SImode bit-field patterns): Use nonmemory_operand. |
| |
| * jump.c (jump_optimize): |
| For if (...) x = 1; else x = 0; x must be integer. |
| |
| * gcc.c (default_compilers): Pass -P to cpp. |
| |
| Thu Jul 12 23:38:14 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * stor-layout.c (layout_record): Handle BITFIELD_NBYTES_LIMITED. |
| |
| * sparc.md (call recognizers): Don't allow address arithmetic. |
| |
| Thu Jul 12 21:47:45 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * emit-rtl.c (change_address): If reload has completed, don't call |
| memory_address. Instead, abort if address is not valid. |
| |
| Thu Jul 12 20:41:32 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * calls.c (emit_call_1): Handle vax, without call and call_value. |
| |
| Thu Jul 12 20:39:33 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cse.c (merge_equiv_classes): New function, from record_jump_equiv. |
| (record_jump_equiv): Use new function. |
| (gen_lowpart_if_possible): New function, based on gen_lowpart. |
| (cse_insn): In some cases of (set (subreg (FOO) 0) (BAR)), note |
| that (subreg BAR) is an equivalent of FOO. |
| * integrate.c (expand_inline_function): Likewise. |
| |
| * combine.c (subst): Check for constant in merge of shift into |
| ZERO_EXTRACT. |
| (gen_lowpart_for_combine): Look for SIGN_EXTEND or ZERO_EXTEND: |
| |
| * emit-rtl.c (gen_lowpart, gen_highpart): If passed a hard register, |
| return a new rtx for it in the proper mode, rather than a SUBREG. |
| |
| Wed Jul 11 17:05:04 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cse.c (cse_insn): If already have a REG_WAS_0 note, don't make |
| another one. |
| Rework some loops on SETs to eliminate duplicate code and clean up |
| a bit. |
| |
| * rtlanal.c (refers_to_regno_p, reg_overlap_mentioned): Allow these |
| to work on pseudos as well as hard registers. |
| |
| * optabs.c (emit_no_conflict_block): Use reg_overlap_mentioned |
| to see if register is mentioned in insn. |
| |
| Wed Jul 11 16:56:01 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * jump.c (jump_optimize): Don't optimize jumps to store-flags |
| if after register allocation. And don't do it if memref is used. |
| |
| Wed Jul 11 16:12:55 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * emit-rtl.c ({next,prev}_nonnote_insn, prev_label, prev_cc0_setter): |
| New functions. |
| ({next,prev}_{real,active}_insn, next_label): Rework to allow |
| argument of zero; return zero in that case. |
| (next_active_insn, prev_active_insn): If reload is not yet complete, |
| do the same thing as next_real_insn and prev_real_insn. |
| (next_cc0_user): Fix some bugs and typos. |
| |
| * rtlanal.c (reg_mentioned_p): Allow searches for labels to work. |
| |
| Wed Jul 11 12:25:27 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * c-decl.c (duplicate_decls): In prev fix, use TREE_PUBLIC both times. |
| |
| Tue Jul 10 22:54:31 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * rtl.def (trap): New code. |
| |
| Tue Jul 10 17:48:26 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * tree.c (integer_zerop, integer_onep, integer_all_onesp): Look inside |
| a NON_LVALUE_EXPR. |
| (real_zerop, real_onep, simple_cst_equal): Likewise. |
| |
| Tue Jul 10 17:05:50 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * c-parse.y, objc-parse.y, cplus-lex.c (yylex): |
| Terminate token_buf after integer. |
| |
| Mon Jul 9 15:22:22 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * c-decl.c (duplicate_decls): Correct test for extern followed by |
| static function declaration. |
| |
| Mon Jul 9 14:13:06 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * c-decl.c (grokdeclarator): Move warning and error |
| about initializer with extern to the same place. Do one or the other. |
| |
| * rltanal.c (reg_mentioned_p): Don't look inside a CONST_DOUBLE. |
| |
| Sun Jul 8 14:12:21 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * toplev.c (pedwarn, pedwarn_with_file_and_line, pedwarn_with_decl): |
| New functions. |
| (flag_pedantic_errors): New variable controls them. |
| * c-decl.c, c-parse.y, c-typeck.c: Use new functions for many warnings. |
| * varasm.c: Likewise. |
| * gcc.c (default_compilers): Pass -pedantic* to cc1, cpp, etc. |
| * cccp.c (pedwarn): New function. Many calls to `warning' changed. |
| |
| * c-common.c (c_expand_expr_stmt): New function. |
| Error about incomplete type moved here. |
| * expr.c (expand_expr): Error deleted from here. |
| * c-parse.y: Use c_expand_expr_stmt where suitable. |
| |
| * flow.c (propagate_block): Set following_insn_dead on insn after test. |
| (mark_used_regs): Test that var; don't call insn_dead_p here. |
| |
| Fri Jul 6 13:05:01 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * c-typeck.c (build_indirect_ref): |
| No error if result is incomplete array. |
| |
| * expmed.c (store_bit_field, extract_bit_field): New arg TOTAL_SIZE. |
| Don't extract a bigger unit from memory than this. |
| * expr.c: Callers changed. |
| (store_field): New arg TOTAL_SIZE; callers changed. |
| |
| * out-ns32k.c (print_operand_address): Changes from Ian Dall. |
| * xm-ns32k.h: Use built in alloca. |
| * ns32k.md (ashlsi3): Don't forget to return a value. |
| (movsf): Output floating constants only if GAS_SYNTAX. |
| (call, call_value): Support JSR_ALWAYS. |
| Change handling of bsr if GAS_SYNTAX. |
| (bit test patterns): Use g constraint for op1 and rm for op0. |
| |
| Thu Jul 5 21:53:10 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * c-typeck.c (build_c_cast): Don't do implicit arithmetic conversions. |
| * fold-const.c (fold): Don't combine two conversions if one is |
| signed and the other is unsigned. |
| * integrate.c (copy_parm_decls): Finish making last change. |
| |
| Thu Jul 5 18:26:03 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expr.c (safe_from_p): If EXP is readonly memory, any memory location |
| is safe from it. |
| |
| Thu Jul 5 15:05:19 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * gnulib2.c (__fixunsdfsi): Change > to >=. |
| |
| * c-decl.c (start_struct, start_enum): Set C_TYPE_BEING_DEFINED. |
| (grokdeclarator): Don't warn of array if elt type being defined. |
| |
| * c-typeck.c (build_conditional_expr): Handle ((void *) 0). |
| Allow 0 versus function pointer. |
| |
| Thu Jul 5 08:05:09 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cse.c (cse_insn): If machine has post-increment, don't associate |
| PLUS operations if they are both adding the same constant that is |
| a power of two. Similarly for post-decrement. |
| |
| Wed Jul 4 19:04:20 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * flow.c (mark_used_regs): Don't scan a comparison if the following |
| insn that uses the cc's is dead. |
| |
| * flow.c (propagate_block): If cc-using insn is dead, so is previous. |
| |
| * expmed.c (emit_store_flag): New function. |
| |
| Wed Jul 4 18:45:04 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * c-typeck.c (common_type, comptypes, default_conversion): |
| Use TYPE_READONLY in type to indicate const type; use TREE_READONLY |
| in decl to indicate object will never change. |
| (build_unary_op, readonly_warning, build_modify_expr): Likewise. |
| (c_expand_asm_operands): Likewise. |
| * cplus-class.c (finish_struct_bits): Likewise. |
| * cplus-cvt.c (build_type_conversion): Likewise. |
| * cplus-type2.c (readonly_warning_or_error): Likewise. |
| * cplus-typeck.c (default_conversion, build_unary_op): Likewise |
| (build_modify_expr, c_expand_asm_operands): Likewise. |
| |
| * cplus-cvt.c (popclass): When making INDIRECT_REF, don't set |
| TREE_READONLY from TYPE_READONLY. |
| |
| Wed Jul 4 15:16:37 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * jump.c (jump_optimize): Fix bugs in last change. |
| |
| Wed Jul 4 07:52:53 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expr.c (expand_expr, case COMPONENT_REF): Delete extraneous test |
| for structure-value stack slot, which no longer exists. |
| |
| * reload1.c (bad_spill_regs): Should be static. |
| |
| * combine.c (subst, gen_lowpart_for_combine): Propagate |
| RTX_UNCHANGING_P when making a new MEM. |
| * c-typeck.c, cplus-typeck.c (build_indirect_ref): ANSI says that |
| de-reference of pointer-to-const is not readonly so don't set |
| RTX_UNCHANGING_P. |
| * explow.c (validize_mem): Use change_address so flags get copied |
| to new MEM. |
| * expr.c (convert_move, block_block_{to,from}_reg, emit_move_insn): |
| Likewise. |
| (do_tablejump): Set RTX_UNCHANGING_P in MEM accessing address table. |
| * function.c (optimize_bit_field, instantiate_virtual_regs_1): |
| Preserve flags when making new MEM. |
| * loop.c (invariant_p): Memory references to an invariant address |
| are invariant if RTX_UNCHANGING_P is set. |
| * recog.c (adj_offsettable_operand): Propagate RTX_UNCHANGING_P |
| when making new MEM. |
| * reload.c (find_reloads_toplev): Likewise. |
| * reload1.c (alter_reg): Stack slot is readonly if pseudo was. |
| (eliminate_regs): Propagate RTX_UNCHANING_P in new MEM. |
| * varasm.c (force_const_double_mem): Set RTX_UNCHANGING_P in new MEM. |
| |
| Tue Jul 3 21:50:58 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * expmed.c (expand_and): New function. |
| |
| * stmt.c (expand_expr_stmt): |
| If value is volatile, fetch it and then ignore it. |
| |
| * expr.c (expand_expr): Error if variable type is incomplete. |
| |
| * c-decl.c (grokdeclarator): Don't warn of incomplete array in typedef. |
| |
| Tue Jul 3 18:03:24 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * fold-const.c (fold): Convert "(1 << foo) & bar" to "(bar >> foo) & 1" |
| In "(a & 1) != 0", can convert to simply "a & 1". |
| * combine.c (subst): Convert branch on sign bit to signed comparison |
| with zero (possibly adding a SUBREG). |
| Convert ZERO_EXTRACT of the low-order bit of a right shift into a |
| ZERO_EXTRACT of the proper bit. |
| |
| Mon Jul 2 12:07:08 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * jump.c (jump_optimize): Convert conditionals for storing one |
| value into a store-flags insn. |
| |
| * vax.md (call_pop, call_value_pop): New names for call patterns. |
| Include the popping explicitly in the rtl. |
| |
| * jump.c (jump_optimize): Delete case for condjump followed |
| by unconditional to same label; was special case of another case. |
| Switch back to next_active_insn or prev_active_insn in a few cases. |
| |
| * function.c (init_function_start): Initialize |
| frame_pointer_needed to zero. |
| |
| * i386.md (tstsf): Clobber reg 0 in SImode. |
| |
| Sun Jul 1 14:31:14 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * jump.c: Use next_real_insn instead of next_active_insn. |
| Likewise for prev_active_insn. USE insns make a difference! |
| |
| * function.c (assign_stack_temp): Use largest alignment if BLKmode. |
| |
| * stddef.h: Check __SIZE_T also. |
| |
| * toplev.c: Include types.h first. |
| |
| * i386.md (trunc*2): Don't allow moving symbolic constant to memory. |
| Use wider move only for symbolic constant. |
| |
| * tm-convex.h (LINK_SPEC): Posix link flags. |
| * tm-convex.h (STARTFILE_SPEC): Posix start files. |
| * tm-convex[12].h (CPP_SPEC): Posix defines. |
| * tm-convex[12].h (LIB_SPEC): Posix libraries. |
| * tm-conv[12]os7.h: New files. |
| * config.gcc: use tm-conv*os7 if /usr/include/stdlib.h isn't there. |
| |
| * xm-convex.h (S_IFMT, S_IFREG): make visible if hidden for posix. |
| * xm-convex.h (_PROTO): define to keep 8.0 includes from screwing up. |
| |
| * tm-convex.h (ASM_OUTPUT_{FLOAT,DOUBLE}, PRINT_OPERAND): |
| use %e instead of %#g, which is broken or non-posix. |
| |
| * tm-convex.h (current_section_is_text): make extern. |
| * out-convex.c (current_section_is_text): define here. |
| * tm-convex.h (OVERRIDE_OPTIONS), out-convex.c (override_options): |
| useless; remove. |
| * tm-convex.h (CPP_PREDEFINES): remove parsec, long gone from |
| system includes. |
| |
| Sat Jun 30 14:01:52 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * c-decl.c (pending_xref_error): Fix typo in arg order. |
| |
| * cccp.c (do_include): Mention non-ex system headers for -M. |
| Guess the directory. |
| (check_macro_name): Should not be static. |
| |
| * rtl.def (inline_header): Add a vector at the end. |
| * rtl.h (ORIGINAL_ARG_VECTOR): New macro. |
| (RTVEC_ELT): New macro. |
| * emit-rtl.c (gen_inline_header_rtx): New argument for that vector. |
| * integrate.c (save_for_inline): Copy arg rtls if nec, then make |
| an arg vector to put in the header. |
| (expand_inline_function): Look in that vector for the rtl. |
| (copy_parm_decls): Likewise. |
| |
| * c-decl.c (duplicate_decls): Warn if function declared external |
| and later static. |
| |
| Fri Jun 29 13:29:24 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * cccp.c (handle_directive): Supply missing *. |
| |
| Thu Jun 28 21:39:43 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * m68k.md (muldf3 for 68881): Generate fscale if appropriate. |
| * out-m68k.c (floating_exact_log2): New function. |
| |
| Wed Jun 27 17:19:36 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * c-decl.c (finish_struct): New handling of zero-width bit fields. |
| Store appropriate data in them like other bit fields. |
| Don't delete them until after layout. |
| Don't mess with alignment of following field; set its own. |
| If PCC_BITFIELD_TYPE_MATTERS, get alignment from type. |
| * stor-layout.c (layout_record): For zero-width field, if |
| PCC_BITFIELD_TYPE_MATTERS, alignment does not affect that of structure. |
| (layout_decl): Don't abort for zero-width if no name. |
| |
| * function.c (expand_function_start): |
| Output ...FUNCTION_BEG note here, after assign_parms. |
| (init_function_start): Not here. |
| |
| * sdbout.c (sdbout_record_type_name): Conditionalize for |
| SDB_ALLOW_FORWARD_REFERENCES. Don't use typedef names, just tags. |
| (sdbout_begin_block): Likewise. |
| (plain_type_1): Likewise. Also move code to output structure size. |
| (sdbout_symbol): Output the type if not yet output. |
| Don't output top-level initialized variables yet. |
| Avoid crash if variable never got any rtl. |
| Add conditional for SDB_AUTO_NORMALIZE_OFFSET. |
| (sdbout_toplevel_data, sdbout_queue_anonymous_type): |
| (sdbout_dequeue_anonymous_type): New functions. |
| (sdbout_tags): Reverse the list first. |
| Output enums before other things. |
| (sdbout_reg_parm): Fake a name if necessary. Use C_REGPARM. |
| * toplev.c (compile_file): Call sdbout_toplevel_data. |
| |
| * c-typeck.c (convert_for_assignment): Disable warnings for pointers |
| to const and volatile functions. |
| |
| * expr.c (expand_expr): Mark variable as used. |
| |
| Tue Jun 26 17:05:00 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * tm-sparc.h (LINK_SPEC): Delete spurious `-'. |
| |
| * tm-sun3.h (ASM_OUTPUT_FLOAT_OPERAND): Handle minus zero. |
| (ASM_OUTPUT_DOUBLE_OPERAND): Likewise. |
| |
| * stor-layout.c (layout_type): Check TYPE_NO_FORCE_BLK in union fields. |
| |
| Tue Jun 26 01:48:57 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * tree.c (dump_tree_statistics): Dummy function. To be filled in |
| later when we decide what tree statistics should be measured. |
| (build): Now ok to take arguments of length 1. `build1' cannot be |
| used to allocate 's' tree nodes whcih might have length 1. |
| |
| * All GNU C++ files updated to 1.37.2 (alpha 2). NOTE: cplus-decl.c |
| needs to be fixed to not us RTL. I'm leaving this file in its |
| current state so that the GNU C++ compiler at least compiles. |
| |
| * All SPARC files: modified to use registers %f30 and %f31 as |
| temporaries for holding floating-point zero. Used to use %f0 and |
| %f1, which made it impossible to compare function return values with |
| zero. |
| |
| Mon Jun 25 16:54:13 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * function.c (init_function_start): New args give file/line for first note. |
| * c-decl.c (store_parm_decls): Pass them. |
| * integrate.c (output_inline_function): Pass dummies for them. |
| * final.c (final_start_function): For sdb, don't output a line number, |
| just set last_linenum. |
| |
| * c-parse.y (hash, is_reserved_word): New keyword __label__. |
| |
| * stddef.h: Check _T_SIZE as well as _SIZE_T. |
| |
| Sun Jun 24 16:09:17 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * expr.c (expand_expr): Do preserve_temp_slots for TARGET_EXPR. |
| |
| Sat Jun 23 09:52:40 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * genpeep.c (gen_peephole): Ignore USE and CLOBBER insn as well as |
| NOTE when matching peephole. |
| |
| Fri Jun 22 17:40:56 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * c-typeck.c (process_init_constructor): Set up TREE_PURPOSE |
| in record constructor elements. |
| |
| * cexp.y (exp1): If pedantic, warn about commas. |
| (tokentab2): Add entries for ++ and --. |
| (yylex): Error if those are used. |
| |
| * c-decl.c (lookup_tag): For wrong kind of type, just set flag. |
| (shadow_tag): Clear the flag. |
| (pending_xref_error): Print the error message here if flag set. |
| * c-parse.y (setspecs): Call that. |
| |
| * calls.c (emit_call_1): Use call_pop and call_value_pop insns |
| to record when the called function pops its args. |
| |
| Fri Jun 22 16:43:12 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * local-alloc.c (wipe_dead_reg): Remove REG_DEAD note for unset reg. |
| |
| * tm-sparc.h: Replace FIX_FRAME_POINTER_ADDRESS with |
| INITIAL_FRAME_POINTER_OFFSET. |
| |
| * tm-vax.h (RTX_COSTS): Show shifts are relatively expensive. |
| |
| Fri Jun 22 15:05:24 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * Makefile.in (GEN): New variable. |
| (P): New variable. |
| (cc1, cc1plus, cc1obj): Use $(P). |
| |
| * cccp.c (check_macro_name): New subroutine taken from do_define. |
| (do_define, do_undef): Use this. |
| (do_undef): Warn if junk follows name. |
| (handle_directive): Always ignore empty directive. |
| Warn if \f or \v in directive. Error for malformed directive name. |
| |
| * tree.h (BUILT_IN_NEXT_ARG): Define it. |
| * c-decl.c (init_decl_processing): Declare __builtin_next_arg. |
| * expr.h (current_function_arg_offset_rtx): Declare it. |
| * function.c (assign_parms): Set that variable at end. |
| * expr.c (expand_builtin): Implement __builtin_next_arg. |
| * stdarg.h (va_start): Use __builtin_next_arg. |
| |
| * c-decl.c (grokdeclarator): Check for TRADITIONAL_RETURN_FLOAT. |
| |
| Fri Jun 22 07:07:53 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * final.c (final_scan_insn): Put label for jump table in same section |
| (read-only data) as jump table. |
| |
| * loop.c: Allow tm.h to define ..._BENEFIT and COPY_PENALTY. |
| |
| Wed Jun 20 13:03:53 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * tm-apollo68.h (FUNCTION_ARG_PADDING): Never pad. |
| (STACK_BOUNDARY): Make it 32. |
| (CPP_SPEC): Add spaces. Define _APOLLO_SOURCE if not -ansi. |
| |
| * c-common.c (check_case_value): New function. |
| * c-parse.y (stmt, when parsing case): Use that. |
| Add new rule for case range. |
| |
| * reload1.c (reload_inheritance_insn): New variable. |
| (reg_reloaded_insn): New variable. |
| (choose_reload_regs): Update those variables. |
| (emit_reload_insns): Use them to remove deaths from insns |
| that used input reloads. |
| (reload_as_needed): Clear reg_reloaded_insn when necessary. |
| |
| * m68k.md (ashlsi3, lshlsi3): Use add to self to shift one bit. |
| |
| * dbxout.c (STAB_CODE_TYPE): New macro defined as type for stab codes. |
| Use in place of enum __stab_debug_code. |
| |
| Tue Jun 19 22:56:40 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * expr.c (expand_increment): For preincrement, don't load value twice: |
| use TEMP as input to addition. |
| |
| Tue Jun 19 06:53:13 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * explow.c (adjust_stack, anti_adjust_stack): Use expand_binop instead |
| of gen_{add,sub}2_insn since the latter will abort if the constant is |
| out of range for the machine. |
| |
| Tue Jun 19 00:35:16 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * local-alloc.c (post_mark_life): Don't decrement DEATH |
| if it equals BIRTH. Don't ever increment DEATH. |
| |
| * varasm.c (output_constructor): Discard non_lvalue_expr, not nop_expr. |
| Handle missing values. Use field in the tree_list, if any. |
| (output_addressed_constants): Don't die if value is missing. |
| * c-typeck.c (process_init_constructor): Handle index and field specs. |
| * c-parse.y (initlist): Parse them. |
| |
| Mon Jun 18 15:58:48 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * c-decl.c, cplus-decl.c (duplicate_decls): |
| Types don't "match" if one is error. |
| |
| * c-parse.y (label_decl): Use new keyword __label__, not colon. |
| |
| * c-parse.gperf (__label__): New keyword. |
| |
| * mips.md (probe): Make a single insn, just a memref. |
| |
| Mon Jun 18 14:27:55 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * loop.c (loop_optimize): Set max_luid to last luid + 1, as documented. |
| |
| * local-alloc.c (qty_clobber): New variable. |
| (local_alloc): Allocate and initialize it. |
| (reg_is_set): Set qty_clobber for a clobber of a pseudo used only |
| in this insn. |
| (find_free_reg): Pass qty_clobber to post_mark_life. |
| (post_mark_life): If CLOBBER if non-zero, register isn't live after |
| its death insn. |
| |
| * integrate.c (expand_inline_function): Don't call try_constants on |
| an insn that sets CC0 until we have processed the next insn. Then |
| call it on both. This is because the recognizer for these insns |
| may want to look at the user of CC0. |
| |
| Mon Jun 18 13:25:59 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * mips.md (ashlqi3, ashlhi3, one_cmplqi2, one_cmplhi2): Deleted. |
| (ashlsi3, ashrsi3, lshrsi3, neg*, one_cmplsi2): Simplified. |
| Don't output comments. Use more specific predicates. |
| |
| * mips.md (movsf, movdf): Use L, M codes to avoid #ifdef's. |
| Also simplify and don't output comments. |
| (anonymous patterns for those insns): Deleted. |
| (loading floating constant): New patterns added. |
| (move qi to si pattern): Deleted; ridiculous. |
| (movdi, movsi, movhi, movqi): No need to check for moving reg to self. |
| |
| * mips.md (nop): Use .set noreorder to placate assembler. |
| |
| Sun Jun 17 20:01:38 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * gcc.c (set_spec): Don't use `name' for both old spec and name of |
| spec. Use new var old_spec for the former use. |
| Don't use (char *) 0 for null spec; use a null string instead. |
| |
| * jump.c (jump_optimize): Don't special-case deleting an ADDR_DIFF_VEC. |
| Merge code to detect trivial ADDR_VEC and ADDR_DIFF_VEC. |
| (mark_jump_label): Don't count the use of a vector table label in |
| ADDR_DIFF_VEC. |
| (delete_insn): Can now handle ADDR_DIFF_VEC. |
| (delete_labelref_insn): New function. |
| (redirect_tablejump): Call new function to delete insn that references |
| the jump table. |
| |
| Sun Jun 17 01:19:26 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * genemit.c (gen_expand): Don't generate `operands' if size is 0. |
| |
| * tm-i860.h (GO_IF_LEGITIMATE_ADDRESS): Displacement must be multiple |
| of the alignment of the operand. |
| |
| * i860.md (signed bit field recognizers): Don't shift by >31 bits. |
| |
| * out-i860.c (output_delayed_branch): Pass register properly to |
| load_opcode. |
| |
| * mips.md (general/fp reg move patterns): Use codes L, M, D. |
| (movdi): Likewise. And don't output useless comments. |
| Use the assembler temp reg for non-offsettable address. |
| (movsi, movhi, movqi): Output nothing for move from reg to itself. |
| Output li to load a constant. Use `move' instead of `add'. |
| Don't output useless comments. |
| (load-address pattern): Deleted; handled by addsi3 pattern. |
| |
| * mips.md (addsi3, mulsi3): Make both input predicates arith_operand |
| since they are commutative. |
| (andsi3, iorsi3, xorsi3): Likewise. |
| |
| * tm-mips.h (MOST_SIGNIFICANT_WORD, LEAST_SIGNIFICANT_WORD): New. |
| |
| * tm-mips.h (PRINT_OPERAND): New codes D, L, M. |
| * mips.md (anddi3, iordi3, xordi3): Use earlyclobber to stop overlap. |
| Use new print code D. |
| |
| * mips.md (andsi3, iorsi3, xorsi3): Make predicates more specific. |
| (andhi3, ..., andqi3, ...): Patterns deleted. |
| (patterns for nor): New anonymous patterns. |
| * out-mips.c (uns_arith_operand): New function. |
| |
| * mips.md (trunc*, zero_extend*, extend*, fix_trunc*, float*): |
| Use more specific predicates. |
| |
| * mips.md (addhi3, ..., addqi3, ...): Patterns deleted. |
| (addsi3, subsi3, mulsi3, divsi3): Make predicates more specific. |
| Delete useless comments from assembler code. |
| Use more generic op codes rather than special cases such as addiu. |
| (divmodsi4, udivmodsi4, udivsi3, modsi3, umodsi3): New patterns. |
| (abssf2, absdf2): New patterns. |
| |
| Sun Jun 17 06:56:10 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cse.c (COST, rtx_cost, make_regs_eqv): Indicate that hard registers |
| in fixed_regs are even cheaper than pseudos. |
| |
| * function.c (instantiate_virtual_regs_1): If valid, replace PLUS |
| whose second operand would be zero with its first operand. |
| |
| Sun Jun 17 00:17:03 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * sdbout.c (sdbout_symbol): Get right regno for var-length object. |
| |
| * combine.c (simplify_set_cc0_and): Strip SUBREGs, but only if |
| they truncate. Handle ASHIFTRT like LSHIFTRT. |
| (try_combine): Call simplify_set_cc0_and in all those cases. |
| (subst): Handle (zero_extract (subreg (lshift (reg )))). |
| |
| Sat Jun 16 23:11:52 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * tree.c (get_narrower, get_unwidened): Bit field test was backwards. |
| |
| Sat Jun 16 19:07:16 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * fold-const.c (fold): Fix typo in test for distributing binary |
| operator over conditional and compound expressions. |
| |
| * genoutput.c: Remove vestiges of obsolete and never used |
| INSN_MACHINE_INFO. |
| |
| * rtl.def (MATCH_PARALLEL): Add new RTL code. |
| * genconfig.c (walk_insn_part): Support MATCH_PARALLEL. |
| * genemit.c (max_operand_1): Likewise. |
| (gen_exp): Just write operand for MATCH_PARALLEL. |
| (gen_expand, gen_split): Support MATCH_PARALLEL. |
| * genrecog.c (walk_rtx): Add support for MATCH_PARALLEL. |
| * genoutput.c (scan_operands): Suppport MATCH_PARALLEL |
| like MATCH_OPERATOR. |
| * genpeep.c (match_rtx): Add code to support MATCH_PARALLEL. |
| Don't write unnecessary cast to `rtx'. |
| * genrecog.c (add_to_sequence): Simplify handling of mode. |
| Support MATCH_PARALLEL. |
| |
| * expr.c (move_block_{to,from}_reg): Support load/store multiple. |
| * function.c (instantiate_virtual_regs_1): If can't substitute |
| new pseudo for virtual register, try doing the substitution |
| globally throughout the entire insn. This lets load/store multiple |
| insns refer to virtual registers in their addresses. |
| |
| * genrecog.c (write_split_tree, write_split_subroutine): Deleted. |
| (break_out_subroutines, write_subroutine, write_tree): Accept |
| parameters that indicate whether we are making gen_split or gen_recog. |
| (main): Pass new parameters to break_out_subroutines and write_tree. |
| |
| * final.c (final_scan_insn): Process insns that set CC whenever a |
| REG_CC_STATUS note is found; not only JUMP_INSNs can use CC. |
| When scanning REG_CC_STATUS insns, set cc_prev_status from cc_status |
| each time. |
| |
| * recog.c (validate_replace_rtx): New function that tries to |
| replace all occurrences of an object within an insn and see if the |
| resulting insn is valid. |
| |
| Thu Jun 14 06:58:26 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * optabs.c (emit_no_conflict_block): Write REG_NO_CONFLICT notes all |
| all insns in the block that modify the output. Write them on the |
| final insn even if we don't put a REG_EQUAL note there. |
| |
| * stmt.c (expand_return): Only distribute return down a conditional |
| expression if tail recursion is possible in a branch. |
| |
| * expr.c (expand_expr): Remove obsolete reference to when we had |
| a shared structure-value slot. |
| |
| * jump.c (get_label_before, get_label_after, follow_jumps): No longer |
| static. |
| * rtl.h: Define them. |
| |
| Mon Jun 11 17:35:40 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * loop.c (INSN_LUID): Check for INSN_UID above the area that we |
| know about. |
| (loop_optimize): Cannot use INSN_LUID as lhs. |
| (scan_loop): If first jump is to label made by loop, we can't |
| tell if it is in range or not, so reject loop. |
| Reject loop if SCAN_START was an insn previously made by loop since |
| we won't know its luid. |
| Only call loop_reg_used_before if argument has known luid. |
| Mark partial invariant as global if its insn was made by loop. |
| (ignore_some_movables): Don't assume all invariants have luids. |
| (strength_reduce): Use no_labels_between_p instead of |
| labels_in_range_p. |
| Don't look at luid of insns for which one doesn't exist. |
| (valid_initial_value_p): Reject initializations in insns whose |
| luid we don't know. |
| |
| * loop.c (product_cheap_p): Put all our rtl into a separate obstack |
| and free memory from it. If we use current_obstack, we may free |
| memory allocated by gen_reg_rtx, which must be preserved. |
| |
| * c-common.c (rewrite_for_merged_ref): A non-zero one-bit signed field |
| is -1, not 1. |
| * c-typeck.c, cplus-typeck.c (build_binary_op_nodefault): If can't |
| merge comparisons, don't use result of rewrite_for_merged_ref; |
| comparisons with zero are more efficient. |
| |
| * protoize.c (main): Don't declare as extern. |
| |
| * c-aux-info.c (gen_aux_info_record): Don't declare extern. |
| |
| * genemit (gen_split): Rework to fix numerous bugs and typos. |
| |
| * function.c (assign_parms): Avoid generating (PLUS foo (const_int 0)). |
| |
| Wed Jun 6 20:03:31 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * gencodes.c (main): Count a code number for DEFINE_SPLIT. |
| |
| * rtlanal.c (note_store): Pass SUBREG of a hard register to function. |
| (reg_overlap_mentioned_p): Handle receiving SUBREG of hard register. |
| * integrate.c (mark_stores): Likewise. |
| * local-alloc.c (reg_is_set, reg_is_born): Likewise. |
| * reload1.c (mark_not_eliminable): Likewise. |
| |
| * loop.c (move_movables): Don't blow up if moving last real insn |
| in function. |
| |
| Wed Jun 6 19:44:04 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * gcc.c (default_compilers): Pass -traditional before -f*. |
| Delete -gg option. |
| |
| Sun Jun 3 22:44:12 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * c-decl.c (grokdeclarator): Warn about extern with initializer. |
| |
| Sun Jun 3 22:32:19 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * genrecog.c (main): Don't call write_tree with null if no insns |
| were in file. |
| |
| Sat Jun 2 21:49:24 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expr.c (expand_expr, cases ABS_EXPR, MAX_EXPR, MIN_EXPR): Use target |
| unless zero or safe_from_p rejects it. |
| (expand_expr, conditional cases): Likewise. |
| |
| Sat Jun 2 14:46:18 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * c-decl.c (grokdeclarator): Handle const and volatile with parm |
| specified as function type. |
| |
| Fri Jun 1 16:13:39 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * rtl.def (DEFINE_FUNCTION_UNIT): Change specifications so |
| it now is one per operation type, rather than one per |
| function unit. |
| * genattr.c (write_units): Write out new function names and |
| function unit table structure. |
| * genattrtab.c (struct function_unit_op): New structure. |
| (struct function_unit): Updated for new definition of |
| DEFINE_FUNCTION_UNIT. |
| (SIMPLIFY_TEST_EXP): New macro to reduce number of function calls |
| to simplify_test_exp. Replace all call to the function with |
| uses of the macro. |
| (check_attr_test, make_alternative_compare): Show that EQ_ATTR with |
| attribute of "alternative", MATCH_OPERAND, and comparison cases can't |
| be simplified. |
| (expand_units, gen_unit, write_function_unit_info): Support new |
| meaning of DEFINE_FUNCTION_UNIT. |
| (simplify_test_expr): Rework AND and IOR cases to reduce rescans. |
| Once an expression has been simplified, set RTX_UNCHANGING_P so |
| we won't try simplifying it again. Don't do this if INSN_CODE == -2. |
| (write_attr_set): Don't make a recursive call if we know that |
| the test we are writing will always be false. Also clean up a bit. |
| (main): true_rtx and false_rtx don't need to be simplified. |
| Write gen_attr_... routines before special routines. |
| |
| Fri Jun 1 14:17:48 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * tm-sparc.h (FUNCTION_PROLOGUE, FUNCTION_EPILOGUE): |
| Round frame size to multiple of STACK_BOUNDARY. |
| |
| Fri Jun 1 09:38:51 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * optabs.c (emit_no_conflict_block): Place REG_NO_CONFLICT notes on |
| insn that contains REG_EQUAL note instead of insn doing computation. |
| |
| * cplus-decl2.c, cplus-lex.c: Rename gettime to get_run_time. |
| Likewise for my_gettime to my_get_run_time. |
| |
| * Makefile.in (varasm.o, calls.o, explow.o, integrate.o, loop.o): |
| These do not depend on insn-codes.h. |
| * function.c: Explicitly include insn-codes.h to make it clear that it |
| is needed for the values of the CODE_FOR_... macros. |
| |
| Thu May 31 12:59:28 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * gnulib2.c (__trampoline): New function. |
| * Makefile.in (LIB2FUNCS): Compile it. |
| * tm-m68k.h (TRAMPOLINE_ALIGN): Define it. |
| * function.c (trampoline_address): Handle extra alignment. |
| * tm-m68k.h (TRAMPOLINE_TEMPLATE, INITIALIZE_TRAMPOLINE): |
| Redefine to transfer via __trampoline. |
| (TRANSFER_FROM_TRAMPOLINE): Define it, for gnulib2.c. |
| |
| * fold-const.c (fold): Preserve sign on constant when other terms |
| cancel (after call to split_tree). |
| |
| Thu May 31 12:39:51 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expr.c (preexpand_calls): Ignore BLOCK to avoid infinite recursion. |
| |
| * function.c (assign_parms): Fix typo getting mode of result. |
| |
| * cse.c (cse_basic_block): Don't go past TO if it is target of |
| followed jump. |
| |
| Wed May 30 21:31:16 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * c-parse.y (fndef, nested_function, notype_nested_function): |
| Use YYERROR1 instead of YYERROR. |
| (YYERROR1): New macro. |
| * cplus-parse.y, objc-parse.y: Likewise. |
| |
| Tue May 29 21:53:19 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * optabs.c (expand_float): Don't use hard reg as intermediate. |
| |
| * c-parse.y, objc-parse.y (yylex): Fix typo checking for ERANGE. |
| * cplus-lex.c (yylex): Copy current code for ERANGE from c-parse.y. |
| |
| * toplev.c (get_run_time): Renamed from gettime. |
| |
| Mon May 28 15:47:48 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * expr.c (emit_push_insn): Don't push by pieces if alignment |
| forces use of small pushes that do problematical padding. |
| |
| * tm-sparc.h (SELECT_SECTION): Use TREE_SIDE_EFFECTS. |
| (STACK_POINTER_OFFSET): Now 68; does not include REG_PARM_STACK_SPACE. |
| (REG_PARM_STACK_SPACE): Now takes arg and has value. |
| (ACCUMULATE_OUTGOING_ARGS): Define this. |
| (FUNCTION_PROLOGUE, FUNCTION_EPILOGUE, EXIT_IGNORE_STACK): Use |
| current_function_outgoing_args_size, not ..._pretend_... |
| (INITIALIZE_TRAMPOLINE): Use size_int. |
| |
| * varasm.c (make_decl_rtl, make_function_rtl): Run ENCODE_SEGMENT_INFO |
| if it is defined. |
| |
| * tree.def (BIND_EXPR): Add operand, which holds the BLOCK. |
| * expr.c (expand_expr): When BIND_EXPR is seen, flag the BLOCK. |
| * dbxout.c (dbxout_block): Test the flag in the BLOCK. |
| * sdbout.c (sdbout_block): Likewise. |
| * symout.c (symout_function): Likewise. |
| * c-parse.y (stmt expr rule): Corresponding change. |
| |
| Sun May 27 20:53:16 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * caller-save.c (save_call_clobbered_regs): Correctly mark registers |
| live for multi-word pseudos. |
| |
| Sat May 26 13:42:04 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * sdbout.c (sdb_begin_function_line): Now -1 if not in use. |
| (sdbout_end_function): Set it to -1. |
| |
| * tree.def: Rename EXIT_STMT to EXIT_EXPR and likewise for LOOP_STMT. |
| Also LET_STMT to BIND_EXPR, and GOTO_STMT, LABEL_STMT, RETURN_STMT |
| to ..._EXPR. |
| (struct tree_stmt, struct tree_if_stmt, struct tree_bind_stmt): |
| (struct tree_case_stmt): Types deleted. |
| |
| * tree.c (make_node, copy_node): Treat 's' like 'e' for size of node. |
| In make_node, make BLOCK and BIND_EXPR savable. |
| * expr.c (expand_expr): Rename, and use TREE_OPERAND to get body. |
| * cplus-init.c (build_vec_delete): Likewise, and build appropriately. |
| * print-tree.c (print_node): No special handling for these and IF_STMT. |
| * stmt.c (warn_if_unused_value): Likewise. |
| |
| * tree.def (BLOCK): New tree code for binding blocks. |
| * tree.h (BLOCK_VARS, BLOCK_TYPE_TAGS): |
| (BLOCK_SUBBLOCKS, BLOCK_SUPERCONTEXT): Renamed from STMT_... |
| (STMT_...): Except for those, all deleted. |
| (BLOCK_CONTROLLER): Points to corresponding BIND_EXPR, if any. |
| (BLOCK_CHAIN): New macro. |
| * tree.c (build_block): Renamed from build_let. |
| (decl_type_context, decl_function_context): Corresponding change. |
| * print-tree.c (print_node): Likewise. |
| * c-decl.c, cplus-decl.c (poplevel): Likewise. |
| * integrate.c (copy_decl_tree): Likewise. |
| * function.c (setjmp_protect, uninitialized_vars_warning): |
| (instantiate_decls_1): Likewise. |
| * c-parse.y, cplus-parse.y, objc-parse.y (stmt expr rule): Likewise. |
| * dbxout.c (dbxout_block): Expect only BLOCKs in this tree. |
| Ignore those with controllers that are not marked used. |
| * sdbout.c (sdbout_block): Likewise. |
| * symout.c (symout_function): Likewise. |
| |
| * tree.def: Delete IF_STMT, COMPOUND_STMT, WITH_STMT. |
| * expr.c (expand_expr): Delete handling of IF_STMT. |
| * tree.c (build_if, build_loop, build_case, build_goto): Deleted. |
| (build_expr_stmt, build_asm_stmt, build_return, build_exit): Likewise. |
| (build_compound): Likewise. |
| * cplus-init.c (build_vec_delete): Use COND_EXPR instead of IF_STMT. |
| |
| Sat May 26 13:23:12 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * calls.c (struct arg_data): Add new fields slot_offset and stack_slot. |
| (expand_call): Compute both location of start of stack slot and the |
| place in the stack slot where the first byte of the argument will be |
| placed. |
| Use stack_slot when loading a BLKmode object into registers. |
| When loading into registers, don't check reg_parm_seen, just look |
| at args[i].reg. |
| (expand_call, store_one_arg): Save and restore stack slot starting |
| from beginning of slot, not begining location where arg is stored. |
| (store_one_arg): After calling emit_push_insn, argument is really |
| at arg->stack_slot instead of arg->stack because if we want to |
| load it into registers, we include any padding. |
| |
| Sat May 26 01:37:27 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * tree.h (struct tree_type): Rename sep=>minval, sep_unit=>precision. |
| |
| * tree.c (init_obstacks, init_tree_codes): init_tree split in two. |
| * toplev.c (compike_file): Call them. |
| |
| Fri May 25 16:40:45 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * stor-layout.c (layout_record): Nuke excess set of DECL_FIELD_BITPOS. |
| * varasm.c (output_constructor): Bitpos is zero for array (field == 0). |
| |
| Fri May 25 00:48:45 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * final.c (final_scan_insn): Restore inadvertent deletion in change |
| of May 24th. |
| |
| Fri May 25 00:13:12 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * print-tree.c (print_node): Print some missing fields for decls. |
| (print_node_brief): Always print value of integer or real constant. |
| |
| Thu May 24 21:28:36 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * fold-const.c (real_zerop): Function deleted; was redundant. |
| |
| * tree.h (DECL_OFFSET): Macro deleted. |
| (struct tree_decl): Field deleted. |
| |
| * c-typeck.c (build_unary_op): For ADDR_EXPR of COMPONENT_REF, |
| use DECL_FIELD_BITPOS and handle non-constant values. |
| * stor-layout.c (layout_record, layout_union): Likewise. |
| * expr.c (expand_assignment, store_constructor, expand_expr): Likewise. |
| * dbxout.c (dbxout_type): Likewise. |
| * sdbout.c (sdbout_one_type): Likewise. |
| * c-common.c (merge_component_comparisons, make_merged_ref): Likewise. |
| * print-tree.c (print_node): Likewise. |
| * varasm.c (decode_addr_const, output_constructor): Likewise. |
| * objc-actions.c (build_ivar_list_initializer): Likewise. |
| * cplus-typeck.c (build_component_addr): Likewise. |
| And preserve TREE_CONSTANT flag. |
| (unary_complex_lvalue): Likewise. |
| |
| * tree.h (DECL_FUNCTION_CODE): Use the frame_size field, not `offset'. |
| Now meaningful only if function is built in. |
| (DECL_BUILT_IN): New flag macro. |
| * c-decl.c (builtin_function): Set the flag. |
| (pushdecl, duplicate_decls): Use and set it. |
| * c-typeck.c, cplus-typeck.c (build_function_call): Test it. |
| * cplus-decl.c (define_function): Set the flag. |
| (pushdecl, duplicate_decls): Use and set it. |
| * expr.c (expand_expr, preexpand_calls): Test it. |
| |
| * tree.h (DECL_INCOMING_RTL): New macro. |
| * function.c (assign_parms): Set up that field. |
| * dbxout.c (dbxout_parms, dbxout_reg_parms): Don't try to use |
| DECL_OFFSET for a parm; it is not set. Use DECL_INCOMING_RTL. |
| (PARM_PASSED_IN_MEMORY): New macro. |
| * sdbout.c (sdbout_parms, sdbout_reg_parms): Likewise. |
| (PARM_PASSED_IN_MEMORY): New macro. |
| |
| * cccp.c (macarg): When popping frame, free via free_ptr, not buf. |
| |
| Thu May 24 18:04:06 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * emit-rtl.c (next_cc0_user): New function. |
| * recog.c (next_insn_tests_no_inequality): Use next_cc0_user. |
| * rtl.h: Define next_cc0_user. |
| |
| * cse.c (cse_insn): Make canon_reg calls in separate loop over the |
| SETs to avoid problems when MATCH_DUPs are present in an insn |
| pattern. |
| Don't canon CLOBBER in PARALLEL. Instead, canon MEM of CLOBBER, |
| both within a PARALLEL and standalone. Also, call note_mem_clobbered |
| only for MEM. |
| |
| Thu May 24 13:08:25 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * gnulib2.c (__negdi2): Make this inline for other functions. |
| |
| Thu May 24 07:15:04 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * jump.c (no_labels_between_p, prev_real_insn, next_real_insn): |
| (prev_active_insn, next_active_insn, next_label): Delete from here. |
| * rtlanal.c (no_labels_between_p): Put here. |
| * emit-rtl.c (prev_real_insn, next_real_insn, prev_active_insn): |
| (next_active_insn, next_label): Add to here. |
| |
| * c-common.c: Define NULL so NULL_TREE macro will work. |
| |
| * cplus-typeck.c (common_parms): Use oballoc and obfree to |
| avoid external current_obstack. |
| |
| * cse.c (fold_cc0, cse_insn): Use HASH macro instead of call to |
| canon_hash. |
| (cse_insn): When just recording jump insn, show it doesn't set CC0 |
| and set it as previous insn. |
| |
| * genoutput.c (gen_split): Fix typo in comment. |
| |
| * reorg.c: No longer need define next_label and next_real_insn as |
| extern. |
| |
| * toplev.c (rest_of_compilation): Use DELAY_SLOTS instead of |
| obsolete HAVE_DELAYED_BRANCH; include insn-attr.h. |
| |
| * final.c (dbr_sequence_length): Now present #ifdef DELAYED_BRANCHES. |
| Eliminate references to obsolete DBR_INSN_SLOTS. |
| (get_attr_length): Support ADJUST_INSN_LENGTH. |
| (get_attr_length, shorten_branches): Handle a SEQUENCE built for an |
| insn with filled delay slots. |
| (final_scan_insn): Avoid unnecessary call to recog_memoized. |
| Use validate_change instead of assuming replacement of CC0 by |
| STORE_FLAG_VALUE or const0_rtx is valid. |
| |
| Wed May 23 16:32:32 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * out-m68k.c, out-alliant.c (output_btst): |
| Use next_insn_tests_no_inequality, not next_insns_test_... |
| * recog.c (next_insns_test_no_inequality): Function deleted. |
| |
| Wed May 23 13:26:57 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expmed.c (store_bit_field): Don't bother making a SUBREG when we |
| call ourself recursively; the recursive call will just strip it off. |
| |
| * reorg.c: Include insn-attr.h before testing DELAY_SLOTS. |
| (emit_delay_sequence): Assign new INSN_UID to the SEQUENCE. |
| Chain insns through the sequence via NEXT_INSN and PREV_INSN. |
| * emit-rtl.c (next_insn, prev_insn): Go inside a SEQUENCE to |
| find the next or previous insn. |
| (make_insn_raw): No longer static. |
| * rtl.h: Define make_insn_raw, prev_active_insn, next_active_insn, |
| next_insn, and previous_insn. |
| |
| * genattrtab.c (write_eligible_delay): Always use "*delay_type"; |
| annuling only applies to candidate insn, not insn needing slot. |
| |
| * tree.c (init_tree): tree_node_counter doesn't exist any more. |
| (make_node, copy_node, make_tree_vec, build1): No longer set TREE_UID. |
| |
| Wed May 23 00:48:57 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * genemit.c, genextract.c: Add support for MATCH_OP_DUP and |
| DEFINE_SPLIT. |
| |
| * cplus-init.c (build_delete): TREE_SIDE_EFFECTS can be |
| nonzero when address to be deleted is a cast of something |
| with side-effects (like a call). |
| (build_vec_delete): Simplify code now that `make_node' does the |
| right thing for _STMT nodes. |
| |
| Tue May 22 22:59:43 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cse.c (cse_end_basic_block): Don't crash if NEXT_INSN of |
| our branch target is zero. |
| Don't skip scanning first insn after destination label of branch. |
| |
| * expr.c (emit_move_insn): Abort if modes differ. |
| (expand_expr, comparison cases): Use TMODE when convenient. |
| (expand_expr, case COND): When optimizing (C ? 1 : 0), ensure |
| we return a result of the correct mode. |
| |
| * integrate.c (expand_inline_function): Can't call try_constants for |
| JUMP_INSN since we may have changed RETURN to jump. |
| |
| Tue May 22 22:40:22 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * tree.h (struct tree_common): Delete field `uid'. |
| (TREE_UID): Macro deleted. |
| |
| * c-decl.c (finish_decl): Discard any variable sizes in the decl. |
| |
| * calls.c (expand_call): When making reg_notes for const function, |
| don't test is_const twice, and take account of order of pushing. |
| |
| Tue May 22 21:41:48 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * reload1.c (eliminate_regs): Ensure we process pseudo that is first |
| operand of PLUS. |
| |
| * expmed.c (store_bit_field): When stripping a SUBREG, adjust the |
| bit position to correspond to the change in modes. |
| |
| * cse.c (rtx_cost): Use COSTS_N_INSNS macro. |
| |
| * cse.c (qty_comparison_*): New vars. |
| (new_basic_block): Initialize qty_comparison_code. |
| (fold_rtx): If we see a comparison, check if we have seen the |
| same comparison before. If so, we know the result. |
| (record_jump_equiv): Save the comparison being passed in the |
| qty_comparison_* variables for possible later use by fold_rtx. |
| (cse_insn): If the current insn doesn't reference cc0, but the |
| previous insn sets it, delete the previous insn; presumably we |
| used to test it. |
| (cse_basic_block): Allocate new qty_comparison_* vars. |
| |
| * reload1.c (eliminate_regs): Second arg is now mode of enclosing |
| MEM, if any, rather than simply flag indicating inside MEM. |
| Use this mode to determine amount that, e.g., PRE_DEC adjusts by. |
| |
| * reload1.c (reload): Set regs_ever_live for a register that couldn't |
| be eliminated. |
| * final.c (only_leaf_regs_used): Don't do it here. |
| |
| * reorg.c: Eliminate obsolete macros *_REORG_FUNCTION. |
| Entire file is conditional on #ifdef DELAY_SLOTS. |
| |
| * Makefile.in: Use reorg.c instead of dbranch.c. |
| |
| Tue May 22 20:40:30 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * c-decl.c (complete_array_type): Get string elt size in bytes. |
| |
| Tue May 22 00:42:07 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * toplev.c (rest_of_compilation): Turn off VERBOSE arg to thread_jumps. |
| |
| * objc-parse.y, objc-actions.c: Replaces uses of build with build1 |
| when being used for 1-operand nodes. |
| |
| Mon May 21 23:59:21 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * global-alloc.c (hard_reg_full_preferences): New variable. |
| (global_alloc): Allocate and initialize it. |
| (prune_preferences): Include in regs_someone_prefers all words |
| of multi-word items that have preferences. Don't includes registers |
| we also prefer unless they are prefered by an allocno that needs |
| more registers. |
| (set_preference): Set hard_reg_full_preferences also. |
| |
| Mon May 21 21:36:29 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * tree.c (make_node): All ..._STMT nodes have side effects, type void. |
| |
| Mon May 21 16:03:23 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * integrate.c (expand_inline_function): Set insns_at_start before |
| processing parameters since it might be needed during that processing. |
| Set RTX_INTEGRATED_P in all insns emitted, including labels and |
| barriers. |
| Ensure COPY is set correctly when replacing RETURN and avoid |
| duplicate barriers by calling emit_jump_insn instead of emit_jump. |
| Call note_stores for JUMP_INSNs and CALL_INSNs in case they have |
| side-effects we care about. |
| (copy_rtx_and_substitute): Convert (use (subreg FOO)) to (use FOO). |
| (subst_constants): Don't crash if we see a SUBREG replaced by a |
| REG or vice versa; we have no work to do in that case. |
| Fix typo in case MULT. |
| |
| * recog.c (constrain_operands): Call reg_fits_class_p with original |
| mode of OP, not mode of SUBREG_REG (op) when OP is SUBREG. |
| |
| Mon May 21 14:25:14 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * expmed.c (extract_bit_field): Use class of TMODE for simple reg case. |
| |
| * flags.h (flag_pic): Declare it. |
| * tree.h (mode_for_size): Declare it. |
| * c-tree.h (merge_component_comparisons): Declare it. |
| |
| Mon May 21 07:27:12 1990 Michael Tiemann (tiemann at cygnus.com) |
| |
| * jump.c (thread_jumps): New function to optimize the case where one |
| conditional jump jumps to another testing the same condition. This |
| function usefully optimzies code both before common subexpression |
| elimination (where it "finds" common subexpressions that cse won't |
| find) and after loop optimization (where the loop optimizer |
| introduces new conditional jumps after rearranging loops). |
| (rtx_equal_for_thread_p): cheaply builds equivalences between |
| register so that jump threading can be effectively run before cse. |
| |
| * emit-rtl.c (init_emit_once): Initialize PIC_OFFSET_TABLE_RTX if |
| PIC_OFFSET_TABLE_REGNUM is defined. |
| |
| * tree.c (build,build1,build_nt): Set TREE_RAISES in addition to |
| TREE_SIDE_EFFECTS. |
| ({temp,saveable,perm}_tree_cons): Call `tree_cons' with arguments |
| instead of calling `make_node' directly. Eventually, `tree_cons' |
| could be faster than `make_node'. |
| (get_identifier): Use `bcmp' instead of `strcmp', since it's |
| faster. Also, test the first letter of each string before calling |
| the string comparison function. |
| |
| * toplev.c: Add new flags FLAG_THREAD_JUMPS and FLAG_PIC. The |
| former gives better common sub-expression elimination while the |
| latter tells the compiler to emit position-independent code. |
| (rest_of_compilation): Thread jumps if requested. |
| |
| * stor-layout.c (layout_{record,union}): For loop bodies meant only |
| for FIELD_DECLs, make sure we have a FIELD_DECL before proceeding. |
| |
| * stmt.c (expand_end_case): Use ADDR_DIFF_VEC if FLAG_PIC is |
| nonzero. |
| @@ NOTE: This would look a lot nicer if CASE_VECTOR_PC_RELATIVE were |
| an expression (like zero/nonzero) instead of soley a #define. |
| (fixup_cleanups): If cleanups emitted no code, don't call |
| `reorder_insns'. |
| (expand_decl_cleanup): Return 0 in case we are not in a block |
| (but instead at top-level). |
| |
| * stack.h: New GNU C++ file. |
| |
| * rtl.c (REG_NOTE_NAMES): Add REG_CC_STATUS and REG_TAIL_CALL. |
| * rtl.h: Ditto. Also make external declaration of |
| pic_offset_table_rtx. |
| * rtl.def: Add the following new RTL codes: DEFINE_SPLIT, |
| MATCH_OP_DUP, LO_SUM and HIGH. |
| |
| * reorg.c: New file. Performs instruction reorganizations |
| (primarily branch scheduling) after register allocation. |
| |
| * local-alloc.c (local_alloc): If defined, execute |
| ORDER_REGS_FOR_LOCAL_ALLOC. |
| |
| * genrecog.c (struct decision): Extended to handle DEFINE_SPLITs. |
| (write_tree): Split into three subroutines: `write_tree_1' which |
| does the main work, `write_tree' which does the original job, and |
| `write_split_tree' which builds the recognizer for insn splitting. |
| (add_to_sequence): Handle MATCH_OP_DUP. |
| (main): Bui.Build both insn->insn_code and insn->insn_list |
| recognizers. |
| Also, fixed comment at the top of the file. |
| * genpeep.c (main): Handle DEFINE_SPLIT. |
| (match_rtx): Handle MATCH_OP_DUP. |
| * genoutput.c (main): Handle DEFINE_SPLIT. |
| * genconfig.c (main): Handle DEFINE_SPLIT and MATCH_OP_DUP. |
| * genattrtab.c (main): Handle DEFINE_SPLIT. |
| |
| * fold-const.c (various places): Use `build1' constructor instead of |
| `build' constructor whenever possible. |
| |
| * final.c (final_scan_insn): If we know the status of the condition |
| codes at a particular JUMP_INSN (by dint of the fact that it has a |
| REG_CC_STATUS note), set CC_STATUS to reflect that value. |
| (only_leaf_regs_used): @@ For some reason the frame pointer register |
| is not marked live, even when it is. If FRAME_POINTER_NEEDED is |
| nonzero, set REGS_EVER_LIVE[FRAME_POINTER_REGNUM] to 1. |
| |
| * expr.c (emit_library_call): Round ARGS_SIZE.CONSTANT up, not down. |
| Use new macro MAX to accomplish this. |
| (safe_from_p): Don't check that EXP is nonzero. Instead, make |
| caller check (only in one place) that argument to `safe_from_p' is |
| non-zero. |
| (expand_expr): In COND_EXPR case, make sure that the predicate is |
| safe from the two conditions. Lossage occured in a construct of the |
| form (c = c < 0 ? d : -d). |
| |
| * explow.c (plus_constant): Handle LO_SUM rtl. |
| |
| * c-typeck.c (build_binary_op_nodefault): If optimizing, try merging |
| component refs and/or comparisons into larger operations. |
| |
| * c-common.c (rewrite_for_merged_ref): New function. Canonicallizes |
| expressions to be recognizable as candidates for merged |
| COMPONENT_REF operations. |
| (make_merged_ref): Builds custom FIELD_DECLs for accessing multiple |
| bits in a byte simultaneously. |
| (merge_component_comparisons): Optimize COMPONENT_REFs in |
| expressions that look like (x.p == y.p && x.q == y.q) or |
| (x.p != y.p || x.q != y.q). Also optimize (x.p == c1 && x.q == c2), |
| where C1 and C2 are known constants. |
| |
| * c-lang.c (print_lang_statistics): Added new hook function. |
| Currently does nothing for C. |
| |
| * c-convert.c: Use `build1' constructor instead of `build' |
| constructor whenever possible. |
| |
| * cplus-typeck.c (build_binary_op_nodefault): Call this function for |
| better applicability of the merged component ref optimization. |
| Also, add more recognized cases. |
| |
| * cplus-type2.c (merge_component_comparisons): Code improved, and |
| moved to c-common.c. |
| |
| * cplus-parse.y (operator_name): Recognize `operator,'. |
| (expr): On parsing ',', call `build_x_compound_expr' instead of |
| `build_compound_expr'. |
| (various places): Call `note_decl_list_got_semicolon' instead of |
| `note_decl_got_semicolon' where object in question is a list instead |
| of a type. |
| (component_declarator0): Set CURRENT_DECLSPECS from the bitfield |
| type. |
| |
| * cplus-method.c (hack_wrapper): Rename parameter TYPE to CNAME, |
| since it is a type name we pass in, not a type. |
| |
| * cplus-lex.c (opname_tab): Add `operator,'. |
| (note_decl_list_got_semicolon): Make notation that a list of |
| declarations should be considered as having "gotten a semicolon". |
| (extract_interface_info,interface_strcmp): Commented. |
| |
| * cplus-init.c (build_delete): Rest of changes to reimplement new |
| destructor mechanism. |
| (build_vbase_delete): Fix bug whereby arrays of length 0 and 1 were |
| not being correctly handled. Also, where elsements were not being |
| deleted. Use new destrouct calling convention. |
| (various places): Change TYPE_HAS_CONSTRUCTOR to |
| TREE_HAS_CONSTRUCTOR where appropriate. |
| |
| * cplus-expr.c (cplus_expand_expr): Use `emit_block_move' to copy |
| data from RETURN_TARGET to CALL_TARGET in case they do not line up |
| normally. |
| |
| * cplus-decl2.c (finish_file): No need to call `build_vbase_delete' |
| on top-level objects anymore, since destructors now do the right |
| thing. |
| |
| * cplus-decl.c (finish_function): Implement new destructor |
| mechanism: destroy virtual baseclass objects if (in$charge & 2) is |
| nonzero. Deallocate if (in$charge & 1) is nonzero. |
| |
| * cplus-cvt.c (build_up_reference): Use TREE_HAS_CONSTRUCTOR, not |
| TYPE_HAS_CONSTRUCTOR on non-TYPE tree nodes. |
| (build_up_reference): Only build up references between compatible |
| types. I.e., don't build a char& to an int object. |
| (convert_to_aggr): Set the TREE_SIDE_EFFECTS bit if the result is a |
| CALL_EXPR. |
| |
| * cplus-class.c (build_vbase_path): Recover from bad parse errors. |
| (build_method_call): Implement new ctor/dtor semantics to allow |
| differentiation between tearing an object down and deallocating it. |
| This also means that ctors and dtors can now aviod going through the |
| virtual function table mechanism as they construct/destruct their |
| objects. |
| |
| * ALL GNU C++ files: Use new macro IDENTIFIER_TYPE_VALUE to lookup |
| type value of an identifier. Also implement related macros |
| IDENTIFIER_HAS_TYPE_VALUE, and IDENTIFIER_TYPEDECL_VALUE. |
| |
| * cplus-cadillac.c (cadillac_switch_source): Change Prototype |
| declaration to non-prototype declaration. |
| (readable_p): Ditto. |
| |
| Sun May 20 20:23:39 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * c-typeck.c (c_sizeof): For incomplete type, warn and return 0. |
| (c_sizeof): Similar. |
| |
| Sun May 20 17:20:48 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * emit-rtl.c (gen_highpart): Support SUBREG like gen_lowpart. |
| |
| Sun May 20 16:59:17 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * c-typeck.c (build_c_cast): Warn about pointer-integer casts |
| where size differs. |
| |
| * stor-layout.c (layout_type): Multi-word field doesn't force BLKmode. |
| |
| * expmed.c (extract_bit_field): Use mode_for_size for lsb-aligned |
| fields in regs. No longer knows explicit modes for this. |
| |
| Sun May 20 15:12:38 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * Makefile.in: (reload1.o): Now depends on output.h. |
| |
| * calls.c (expand_call): No need to set frame_pointer_needed. |
| |
| * emit-rtl.c (gen_rtx): If reference to sp, ap, or fp, use |
| appropriate already-made rtx (e.g., stack_pointer_rtx). |
| |
| * expr.c (expand_builtin, case BUILT_IN_ALLOCA): No need to set |
| frame_pointer_needed. |
| |
| * final.c (final_start_function): No longer round size of frame here. |
| (final_scan_insn): Call constrain_operands with new operand. |
| |
| * flow.c (life_analysis): Change test on whether sp is live or |
| not to depend on FRAME_POINTER_REQUIRED and -fomit-frame-pointer. |
| (This code may not be relevant any more.) |
| |
| * function.c (push_function_context, pop_function_context): No need |
| to save and restore frame_pointer_needed. |
| (assign_{outer_,}stack_local): No need to set frame_pointer_needed. |
| (assign_parms): Likewise. |
| (init_function_start): Don't initialize frame_pointer_needed here. |
| |
| * function.h (frame_pointer_needed): Deleted. |
| |
| * genattrtab.c (write_attr_case): Write call to constrain_operands |
| with new second argument (reload_completed). |
| |
| * global-alloc.c (global_alloc): Don't left fp be allocated if we |
| already know we can't eliminate it. |
| (find_reg): Argument LOSERS is now a HARD_REG_SET instead of an array. |
| Precompute HARD_REG_SETs before loop over registers to speed up |
| allocation. |
| (retry_global_alloc): Argument FORBIDDEN_REGS is now a HARD_REG_SET. |
| (check_frame_pointer_required): Deleted; no longer needed. |
| |
| * integrate.c (save_for_inline, output_inline_function): No longer |
| need to save and restore frame_pointer_needed. |
| |
| * local-alloc.c (block_alloc): No longer have to worry that having |
| a stack variable might cause a frame pointer to be needed when it |
| might otherwise not be. |
| (find_free_reg): Don't allocate into registers that may be eliminated |
| later even if they are not FIXED_REGS. |
| |
| * output.h: Define reload_completed. |
| |
| * recog.c (constrain_operands): Add new argument, STRICT. If zero |
| and the constraints could not be matched, try again with a less |
| strict view (i.e., assume that reload will fix those things that |
| it can). This allows attribute values to be obtained prior to |
| reload. |
| Don't call alter_subreg or assume it has been called. Instead, |
| look inside SUBREGs. |
| |
| * reload.c (find_reloads_address{,_1}): Handle an address that |
| is a MEM; it may have been produced by register elimination. |
| (find_reloads_address): sp can also be the base register for a |
| stack slot. |
| (form_sum): No longer static. |
| |
| * reload1.c: Rewrite code that performs frame pointer elimination. Do |
| it during reload to ensure that all addresses and operands remain |
| valid; also generalize to support more than one pair of eliminations. |
| (reg_equiv_stack_slot, bad_spill_regs): New vars. |
| (forbidden_regs): Now a HARD_REG_SET. |
| (struct elim_table): New structure to describe register eliminations. |
| (reload): Start scanning registers after virtual registers. |
| Initialize reg_equiv_stack_slot for each register. Compute |
| reg_equiv_{mem,address} during register scan only if not eliminating |
| registers. |
| Compute initial default value of frame_pointer_needed. |
| Round frame size to BIGGEST_ALIGNMENT. |
| Create obstack for scratch rtl created by register elmination. |
| Initialize elimination table and spill registers that we know can't |
| be eliminated. |
| On each scan of the insns: Reset all elimination entries to initial |
| offsets, compute reg_equiv_{mem,address}, and see if any potentially |
| eliminable register changed status. |
| Try to eliminate registers from each insn unless we know that none |
| can be eliminated. |
| Don't complete groups for spill registers from registers that |
| shouldn't be used as spill registers. |
| Call reload_as_needed if register eliminations can be done, even if |
| no reloads are needed. |
| (new_spill_reg): Don't allow spilling an eliminable register. |
| Don't set forbidden_regs here. |
| Indicate something changed if a register that wasn't ever used before |
| was made a spill register. |
| (eliminate_frame_pointer, {alter,fix}_frame_pointer_address): Deleted. |
| (delete_dead_insn): New function. |
| (alter_reg): Call it. |
| Always set reg_equiv_stack_slot; if not eliminating registers, also |
| set reg_equiv_{mem,address}. |
| (eliminate_regs, eliminate_regs_in_insn): New functions. |
| (spill_hard_reg): Add new argument, CANT_ELIMINATE. |
| Set bit for register being spilled in forbidden_regs. |
| Use new argument instead of seeing if we are spilling fp. |
| No longer need to have frame pointer just because a reg needs a |
| stack slot. |
| (order_regs_for_reload): Set bad_spill_regs to contain those registers |
| that can't be used for spill registers. |
| Consider any eliminable register as bad to use as a spill register. |
| Rework initialization of potential_reload_regs. |
| (reload_as_needed): Handle register elimination in a similar manner |
| as function reload. |
| (gen_input_reload): When generating a reload for a PLUS, first try to |
| use a three-operand add insn. If that fails, emit two two-operand |
| insns. |
| |
| * rtl.h (FUNCTION_FLAGS_FRAME_POINTER_NEEDED): Deleted; all others |
| renumbered. |
| |
| * stmt.c (expand_decl): No longer have to set frame_pointer_needed |
| for variable-sized decl. |
| |
| * stupid.c (stupid_find_reg): Don't try to allocate an eliminable |
| register. |
| |
| * tm-vax.h (INITIAL_FRAME_POINTER_OFFSET): Add definition. |
| |
| * recog.c (next_insn_tests_no_inequality): If no next insn, return 0. |
| |
| * print-tree.c (print_node): Set length for TREE_VEC. |
| |
| * calls.c (store_one_arg): Set arg->value to location where argument |
| was placed (either register or stack). |
| |
| * recog.c: Needs flags.h (for flag_pretend_float): |
| * Makefile.in (recog.o): Likewise. |
| |
| * expr.c (convert_move): Add missing RETURN statements. |
| |
| Sat May 19 14:26:31 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expr.c (expand_expr, case EXIT_STMT): Return rather than falling |
| out of switch statement (and into `binop'). |
| |
| * cse.c (cse_insn): Allow conditional branches to be turned into |
| noops when the condition is known false by not calling validate_change. |
| |
| * cse.c (fold_rtx): Add LABEL_REF to list of fast RTL codes. |
| |
| Sat May 19 12:41:44 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * tm-i386gas.h (ASM_OUTPUT_ALIGN): Use log as arg to .align. |
| (ASM_OUTPUT_ALIGN_CODE): Likewise. |
| |
| * gcc.c (default_compilers): For .cc, pass -g* to cc1. |
| |
| Sat May 19 06:51:26 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * tree.c (push_obstacks, pop_obstacks): Put struct obstack_stack |
| in obstack instead of using xmalloc/free. |
| (init_tree): Initialize new obstack for {push,pop}_obstacks. |
| |
| * tree.c (simple_cst_list_equal): No longer static. |
| |
| Fri May 18 19:38:01 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expr.h (MUST_PASS_IN_STACK): Refine test for case where padding |
| requirement prohibits passing in register. |
| |
| Fri May 18 18:14:18 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * fixincludes: Fix CAT macro in memvar.h. |
| |
| Fri May 18 16:13:59 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * expr.c (do_jump): Don't explicitly copy item being tested from |
| MEM to REG. If needed, this will be done later. |
| |
| Thu May 17 14:33:50 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * Makefile.in (bootstrap): Pass LANGUAGES to inner makes. |
| |
| Thu May 17 13:57:34 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * fixincludes: Handle _CTRL like CTRL. |
| |
| Wed May 16 21:09:42 1990 Richard Kenner (kenner at vlsi1.ultra.edu) |
| |
| * fold-const (fold): Two conversions in a row are needed if from an |
| integer type to a pointer type of a different precision. |
| |
| Wed May 16 16:09:47 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * expr.c (expand_expr): Make sure a volatile value is referenced |
| even if value is ignored. |
| |
| * c-typeck.c (truthvalue_conversion): Result COND_EXPR gets type int. |
| (invert_truthvalue): Simplify COND_EXPR. |
| |
| Tue May 15 00:25:03 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * stor-layout.c (layout_record): Do set TYPE_SIZE if size is var. |
| |
| * reload.c (push_reload): If insn is an asm, verify that CLASS |
| is at least possible for the specified mode. |
| |
| * c-decl.c (complete_array_type): Compensate for wide string constant. |
| |
| * final.c (leaf_function_p): Reject everything if profiling. |
| |
| * function.c (optimize_bit_field): Adjust OFFSET if |
| BITS_BIG_ENDIAN != BYTES_BIG_ENDIAN. |
| |
| * expmed.c (store_bit_field, extract_bit_field): Rework the code |
| to adjust XBITPOS for the size within which to count. |
| (extract_bit_field): When converting MEM to REG, don't make SUBREG |
| immediately; fall through and let this happen in the code that |
| handles original registers of the wrong mode. |
| |
| Mon May 14 16:01:13 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * cexp.y (yylex): Ignore carriage return. |
| * cccp.c (initialize_char_syntax): Likewise. |
| (newline_fix, name_newline_fix): Likewise. |
| |
| * c-common.c: New file. |
| (combine_strings): Moved here. Fix errors for wide string length. |
| * c-parse.y, objc-parse.y, cplus-lex.c: Function deleted here. |
| |
| Sun May 13 08:08:41 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * integrate.c (subst_constants): Fix typo in case 'E'. |
| |
| Sat May 12 17:14:26 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * combine.c (subst): Don't change -(y-x) to x-y for IEEE floats. |
| Include real.h. |
| |
| * cse.c (fold_rtx): Don't simplify float+0, float-0, float*0 |
| if using IEEE floating point. |
| Don't simplify float-self even if not IEEE. |
| * fold-const.c (fold): Likewise. |
| |
| * i386.md (trunc**): Use long move if source is constant. |
| * out-i386.c (PRINT_REG): Handle CODE == 'k'. |
| |
| * fixincludes: Use rm -fr to delete before making link. |
| |
| * optabs.c (init_optabs): Support MULDI3_LIBCALL, etc. |
| |
| Sat May 12 17:04:58 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * cse.c (find_best_addr): Don't modify constant address MEMs; they |
| are shared. |
| |
| Sat May 12 15:17:37 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * ns32k.md (signed bitfield extract): Don't output assembler comment. |
| |
| Fri May 11 15:23:55 1990 Richard Kenner (kenner at vlsi1.ultra.nyu.edu) |
| |
| * Makefile.in: Don't use $(libsubdir) as a target since it involves |
| shell `...` constructs. |
| |
| * genattr.c (fatal, main): Remove relics of old program name. |
| * genattrtab.c: Likewise. |
| |
| * expr.c (expand_expr, case COND_EXPR): Add missing argument to |
| operand_equal_p. |
| |
| * reload.c (form_sum): Handle case where second operand is |
| (plus foo (const_int ...)). |
| |
| * c-typeck.c (c_sizeof{,_nowarn}, c_alignof): Don't blow up for |
| ERROR_MARK. |
| * cplus-typeck.c (c_sizeof{,_nowarn}, c_alignof): Likewise. |
| |
| * cplus-typeck.c (c_sizeof{,_nowarn}): Convert from bytes to chars, |
| since c defines sizeof (char) as 1. |
| |
| * loop.c (mark_loop_jump): RETURN, SIGN_EXTEND, and ZERO_EXTEND can |
| also occur in JUMP_INSN's. |
| |
| * reload.c (find_reloads, find_reloads_address): Correct errors where |
| an arg to find_reloads is "VOIDmode" instead of "0" and vice versa. |
| (find_reloads_address_1): Likewise. |
| |
| * global-alloc.c (global_alloc): Avoid divide-by-zero for allocnos |
| where all regs have reg_live_length == -2. |
| |
| Fri May 11 14:45:06 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * tm-i860.h (ASM_OUTPUT_CASE_LABEL): Align to multiple of 4. |
| |
| Thu May 10 23:43:31 1990 Richard Stallman (rms at sugar-bombs.ai.mit.edu) |
| |
| * out-i860.c (single_insn_src_p, strict_single_insn_src_p): |
| Correct conditions for needing multiple instructions. |
| (output_delayed_branch): Likewise. |
| |
| See file ChangeLog.1. |
| |
| Local Variables: |
| mode: indented-text |
| left-margin: 8 |
| fill-column: 76 |
| version-control: never |
| End: |