| /* Definitions of target machine for GNU compiler for TILEPro. |
| Copyright (C) 2011-2015 Free Software Foundation, Inc. |
| Contributed by Walter Lee (walt@tilera.com) |
| |
| This file is part of GCC. |
| |
| GCC is free software; you can redistribute it and/or modify it |
| under the terms of the GNU General Public License as published |
| by the Free Software Foundation; either version 3, or (at your |
| option) any later version. |
| |
| GCC is distributed in the hope that it will be useful, but WITHOUT |
| ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
| or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public |
| License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GCC; see the file COPYING3. If not see |
| <http://www.gnu.org/licenses/>. */ |
| |
| /* This is used by tilepro_cpu_cpp_builtins to indicate the byte order |
| we're compiling for. */ |
| #define TILEPRO_CPU_CPP_ENDIAN_BUILTINS() \ |
| do \ |
| { \ |
| if (BYTES_BIG_ENDIAN) \ |
| builtin_define ("__BIG_ENDIAN__"); \ |
| else \ |
| builtin_define ("__LITTLE_ENDIAN__"); \ |
| } \ |
| while (0) |
| |
| /* Target CPU builtins. */ |
| #define TARGET_CPU_CPP_BUILTINS() \ |
| tilepro_cpu_cpp_builtins (pfile) |
| |
| #undef PTRDIFF_TYPE |
| #define PTRDIFF_TYPE "int" |
| |
| #undef SIZE_TYPE |
| #define SIZE_TYPE "unsigned int" |
| |
| |
| /* Target machine storage layout */ |
| |
| #define BITS_BIG_ENDIAN 0 |
| #define BYTES_BIG_ENDIAN 0 |
| #define WORDS_BIG_ENDIAN 0 |
| |
| #define UNITS_PER_WORD 4 |
| #define PARM_BOUNDARY 32 |
| #define STACK_BOUNDARY 64 |
| #define FUNCTION_BOUNDARY 64 |
| #define BIGGEST_ALIGNMENT 64 |
| #define STRICT_ALIGNMENT 1 |
| |
| #define PCC_BITFIELD_TYPE_MATTERS 1 |
| #define FASTEST_ALIGNMENT 32 |
| #define BIGGEST_FIELD_ALIGNMENT 64 |
| |
| /* Unaligned moves trap and are very slow. */ |
| #define SLOW_UNALIGNED_ACCESS(MODE, ALIGN) 1 |
| |
| /* Make strings word-aligned so strcpy from constants will be |
| faster. */ |
| #define CONSTANT_ALIGNMENT(EXP, ALIGN) \ |
| ((TREE_CODE (EXP) == STRING_CST \ |
| && (ALIGN) < FASTEST_ALIGNMENT) \ |
| ? FASTEST_ALIGNMENT : (ALIGN)) |
| |
| /* Make arrays of chars word-aligned for the same reasons. */ |
| #define DATA_ALIGNMENT(TYPE, ALIGN) \ |
| (TREE_CODE (TYPE) == ARRAY_TYPE \ |
| && TYPE_MODE (TREE_TYPE (TYPE)) == QImode \ |
| && (ALIGN) < FASTEST_ALIGNMENT ? FASTEST_ALIGNMENT : (ALIGN)) |
| |
| /* Make local arrays of chars word-aligned for the same reasons. */ |
| #define LOCAL_ALIGNMENT(TYPE, ALIGN) DATA_ALIGNMENT (TYPE, ALIGN) |
| |
| |
| /* Standard register usage. */ |
| |
| #define FIRST_PSEUDO_REGISTER (64 + 3) |
| |
| #define FIXED_REGISTERS \ |
| {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ |
| 0, 0, 0, 0, 0, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 1, \ |
| 1, 1, 1} |
| |
| #define CALL_USED_REGISTERS \ |
| {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, \ |
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, \ |
| 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, \ |
| 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, \ |
| 1, 1, 1} |
| |
| #define CALL_REALLY_USED_REGISTERS \ |
| CALL_USED_REGISTERS |
| |
| #define REG_ALLOC_ORDER { \ |
| 10, 11, 12, 13, 14, /* call used */ \ |
| 15, 16, 17, 18, 19, \ |
| 20, 21, 22, 23, 24, \ |
| 25, 26, 27, 28, 29, \ |
| \ |
| 9, 8, 7, 6, 5, /* argument */ \ |
| 4, 3, 2, 1, 0, \ |
| \ |
| 55, /* return address */ \ |
| \ |
| 30, 31, 32, 33, 34, /* call saved registers */ \ |
| 35, 36, 37, 38, 39, \ |
| 40, 41, 42, 43, 44, \ |
| 45, 46, 47, 48, 49, \ |
| 50, 51, \ |
| \ |
| 52, /* hard frame pointer */ \ |
| 53, 54, /* tp, sp */ \ |
| \ |
| 56, 57, 58, 59, 60, /* special purpose */ \ |
| 61, 62, 63, 64, 65, /* or fake registers */ \ |
| 66 \ |
| } |
| |
| #define HARD_REGNO_NREGS(REGNO, MODE) \ |
| ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD) |
| |
| /* All registers can hold all modes. */ |
| #define HARD_REGNO_MODE_OK(REGNO, MODE) 1 |
| |
| #define MODES_TIEABLE_P(MODE1, MODE2) 1 |
| |
| /* Register that holds an address into the text segment that can be |
| used by pic code. */ |
| #define TILEPRO_PIC_TEXT_LABEL_REGNUM (flag_pic ? 50 : INVALID_REGNUM) |
| #define PIC_OFFSET_TABLE_REGNUM (flag_pic ? 51 : INVALID_REGNUM) |
| #define HARD_FRAME_POINTER_REGNUM 52 |
| #define THREAD_POINTER_REGNUM 53 |
| #define STACK_POINTER_REGNUM 54 |
| #define TILEPRO_LINK_REGNUM 55 |
| #define FRAME_POINTER_REGNUM 64 |
| #define ARG_POINTER_REGNUM 65 |
| /* Pseudo register used to enforce order between instructions that |
| touch the networks. */ |
| #define TILEPRO_NETORDER_REGNUM 66 |
| #define STATIC_CHAIN_REGNUM 10 |
| |
| |
| enum reg_class |
| { |
| NO_REGS, |
| R0_REGS, |
| R1_REGS, |
| R2_REGS, |
| R3_REGS, |
| R4_REGS, |
| R5_REGS, |
| R6_REGS, |
| R7_REGS, |
| R8_REGS, |
| R9_REGS, |
| R10_REGS, |
| ALL_REGS, |
| LIM_REG_CLASSES |
| }; |
| |
| #define N_REG_CLASSES (int) LIM_REG_CLASSES |
| |
| /* Since GENERAL_REGS is the same class as ALL_REGS, don't give it a |
| different class number; just make it an alias. */ |
| #define GENERAL_REGS ALL_REGS |
| |
| #define REG_CLASS_NAMES \ |
| { \ |
| "NO_REGS", \ |
| "R0_REGS", \ |
| "R1_REGS", \ |
| "R2_REGS", \ |
| "R3_REGS", \ |
| "R4_REGS", \ |
| "R5_REGS", \ |
| "R6_REGS", \ |
| "R7_REGS", \ |
| "R8_REGS", \ |
| "R9_REGS", \ |
| "R10_REGS", \ |
| "ALL_REGS" \ |
| } |
| |
| #define REG_CLASS_CONTENTS \ |
| { \ |
| { 0 }, \ |
| { 1 << 0 }, \ |
| { 1 << 1 }, \ |
| { 1 << 2 }, \ |
| { 1 << 3 }, \ |
| { 1 << 4 }, \ |
| { 1 << 5 }, \ |
| { 1 << 6 }, \ |
| { 1 << 7 }, \ |
| { 1 << 8 }, \ |
| { 1 << 9 }, \ |
| { 1 << 10 }, \ |
| { 0xffffffff, 0xffffffff } \ |
| } |
| |
| #define REGNO_REG_CLASS(REGNO) \ |
| ((unsigned)(REGNO) <= 10 ? \ |
| (enum reg_class)(R0_REGS + (REGNO)) : ALL_REGS) |
| |
| #define INDEX_REG_CLASS NO_REGS |
| #define BASE_REG_CLASS ALL_REGS |
| |
| #define PREFERRED_RELOAD_CLASS(X,CLASS) (CLASS) |
| |
| #define CLASS_MAX_NREGS(CLASS, MODE) \ |
| ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD) |
| |
| |
| /* Stack layout; function entry, exit and calling. */ |
| |
| #define STACK_GROWS_DOWNWARD |
| #define FRAME_GROWS_DOWNWARD 1 |
| #define STARTING_FRAME_OFFSET 0 |
| |
| #define DYNAMIC_CHAIN_ADDRESS(FRAME) \ |
| plus_constant (Pmode, (FRAME), UNITS_PER_WORD) |
| |
| #define FIRST_PARM_OFFSET(FNDECL) 0 |
| |
| #define ACCUMULATE_OUTGOING_ARGS 1 |
| |
| #define OUTGOING_REG_PARM_STACK_SPACE(FNTYPE) 1 |
| |
| #define INCOMING_FRAME_SP_OFFSET 0 |
| |
| #define STACK_POINTER_OFFSET (2 * UNITS_PER_WORD) |
| |
| #define ARG_POINTER_CFA_OFFSET(FNDECL) (-STACK_POINTER_OFFSET) |
| |
| #define DEFAULT_PCC_STRUCT_RETURN 0 |
| |
| /* The first 10 registers may hold return value. */ |
| #define TILEPRO_NUM_RETURN_REGS 10 |
| |
| /* The first 10 registers hold function arguments. */ |
| #define TILEPRO_NUM_ARG_REGS 10 |
| |
| #define FUNCTION_ARG_REGNO_P(N) ((N) < TILEPRO_NUM_ARG_REGS) |
| |
| /* The type used to store the number of words of arguments scanned so |
| far during argument scanning. This includes any space that is |
| skipped. */ |
| #define CUMULATIVE_ARGS int |
| |
| #define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, INDIRECT, N_NAMED_ARGS) \ |
| ((CUM) = 0) |
| |
| |
| #define ELIMINABLE_REGS \ |
| {{ARG_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ |
| {ARG_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}, \ |
| {FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}, \ |
| {FRAME_POINTER_REGNUM, HARD_FRAME_POINTER_REGNUM}} |
| |
| #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \ |
| ((OFFSET) = tilepro_initial_elimination_offset((FROM),(TO))) |
| |
| #define PROFILE_BEFORE_PROLOGUE 1 |
| |
| #define FUNCTION_PROFILER(FILE, LABELNO) \ |
| tilepro_function_profiler (FILE, LABELNO) |
| |
| #define TRAMPOLINE_SIZE 48 |
| #define TRAMPOLINE_ALIGNMENT 64 |
| #define TRAMPOLINE_SECTION text_section |
| |
| |
| /* Call frame debugging information. */ |
| |
| #define INCOMING_RETURN_ADDR_RTX gen_rtx_REG (Pmode, TILEPRO_LINK_REGNUM) |
| |
| #define RETURN_ADDR_RTX tilepro_return_addr |
| |
| #define DWARF_FRAME_RETURN_COLUMN DWARF_FRAME_REGNUM (TILEPRO_LINK_REGNUM) |
| |
| #define DWARF_ZERO_REG 63 |
| |
| #define EH_RETURN_DATA_REGNO(N) ((N) < 4 ? (N + 12) : INVALID_REGNUM) |
| #define EH_RETURN_STACKADJ_RTX gen_rtx_REG (Pmode, 11) |
| #define EH_RETURN_HANDLER_RTX tilepro_eh_return_handler_rtx () |
| |
| #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \ |
| tilepro_asm_preferred_eh_data_format ((CODE), (GLOBAL)) |
| |
| |
| /* Addressing modes, and classification of registers for them. */ |
| |
| #define HAVE_POST_INCREMENT 1 |
| #define HAVE_POST_DECREMENT 1 |
| #define HAVE_POST_MODIFY_DISP 1 |
| |
| #define REGNO_OK_FOR_INDEX_P(regno) 0 |
| #define REGNO_OK_FOR_BASE_P(regno) \ |
| ((regno) < FIRST_PSEUDO_REGISTER || reg_renumber[regno] >= 0) |
| |
| #define MAX_REGS_PER_ADDRESS 1 |
| |
| #define CONSTANT_ADDRESS_P(X) 0 |
| |
| #define LEGITIMATE_PIC_OPERAND_P(X) tilepro_legitimate_pic_operand_p (X) |
| |
| |
| #define CASE_VECTOR_MODE SImode |
| #define CASE_VECTOR_PC_RELATIVE 0 |
| #define JUMP_TABLES_IN_TEXT_SECTION 0 |
| |
| #define DEFAULT_SIGNED_CHAR 1 |
| |
| #define MOVE_MAX UNITS_PER_WORD |
| |
| /* Use a value of 11 for MOVE_RATIO and friends, because TILEPro |
| returns structs as large as 10 words in registers. Because of some |
| some code generation inefficiency, we never get smaller code for |
| turning that into a memcpy, so pick a value that guarantees this |
| doesn't happen. */ |
| #define TILEPRO_CALL_RATIO 11 |
| #define MOVE_RATIO(speed) ((speed) ? 15 : TILEPRO_CALL_RATIO) |
| #define CLEAR_RATIO(speed) ((speed) ? 15 : TILEPRO_CALL_RATIO) |
| #define SET_RATIO(speed) ((speed) ? 15 : TILEPRO_CALL_RATIO) |
| |
| #define WORD_REGISTER_OPERATIONS |
| |
| #define LOAD_EXTEND_OP(MODE) ZERO_EXTEND |
| |
| #define PROMOTE_MODE(MODE,UNSIGNEDP,TYPE) \ |
| if (GET_MODE_CLASS (MODE) == MODE_INT \ |
| && GET_MODE_SIZE (MODE) < UNITS_PER_WORD) \ |
| (MODE) = SImode; |
| |
| /* Define SLOW_BYTE_ACCESS to avoid making a QI or HI mode |
| register. */ |
| #define SLOW_BYTE_ACCESS 1 |
| |
| #define SHIFT_COUNT_TRUNCATED 1 |
| |
| #define SHORT_IMMEDIATES_SIGN_EXTEND |
| |
| #define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1 |
| |
| #define CLZ_DEFINED_VALUE_AT_ZERO(MODE, VALUE) ((VALUE) = 32, 1) |
| #define CTZ_DEFINED_VALUE_AT_ZERO(MODE, VALUE) ((VALUE) = 32, 1) |
| |
| #define Pmode SImode |
| |
| #define STORE_FLAG_VALUE 1 |
| |
| #define FUNCTION_MODE SImode |
| |
| #define NO_FUNCTION_CSE 1 |
| |
| #define ADJUST_INSN_LENGTH(INSN, LENGTH) \ |
| ((LENGTH) = tilepro_adjust_insn_length ((INSN), (LENGTH))) |
| |
| #define TARGET_FLOAT_FORMAT IEEE_FLOAT_FORMAT |
| |
| #define BRANCH_COST(speed_p, predictable_p) ((predictable_p) ? 2 : 6) |
| |
| |
| /* Control the assembler format that we output. */ |
| |
| #undef NO_DOLLAR_IN_LABEL |
| |
| #define ASM_COMMENT_START "##" |
| |
| #define TEXT_SECTION_ASM_OP "\t.text" |
| |
| #define DATA_SECTION_ASM_OP "\t.data" |
| |
| #undef READONLY_DATA_SECTION_ASM_OP |
| #define READONLY_DATA_SECTION_ASM_OP "\t.section\t.rodata, \"a\"" |
| |
| #undef BSS_SECTION_ASM_OP |
| #define BSS_SECTION_ASM_OP "\t.section\t.bss, \"wa\"" |
| |
| #undef INIT_SECTION_ASM_OP |
| #define INIT_SECTION_ASM_OP "\t.section\t.init, \"ax\"" |
| |
| #undef FINI_SECTION_ASM_OP |
| #define FINI_SECTION_ASM_OP "\t.section\t.fini, \"ax\"" |
| |
| #define GLOBAL_ASM_OP ".global " |
| |
| #define SUPPORTS_WEAK 1 |
| |
| #define USER_LABEL_PREFIX "" |
| |
| #define REGISTER_PREFIX "" |
| #define REGISTER_NAMES \ |
| { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", \ |
| "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", \ |
| "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", \ |
| "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", \ |
| "r32", "r33", "r34", "r35", "r36", "r37", "r38", "r39", \ |
| "r40", "r41", "r42", "r43", "r44", "r45", "r46", "r47", \ |
| "r48", "r49", "r50", "r51", "r52", "tp", "sp", "lr", \ |
| "sn", "idn0", "idn1", "udn0", "udn1", "udn2", "udn3", "zero", \ |
| "?FRAME?", "?ARG?", "?NET?" } |
| |
| /* This is used to help emit bundles. */ |
| #define FINAL_PRESCAN_INSN(INSN, OPVEC, NOPERANDS) \ |
| tilepro_final_prescan_insn (insn) |
| |
| /* This is used to help emit bundles. */ |
| #define ASM_OUTPUT_OPCODE(STREAM, PTR) \ |
| (PTR = tilepro_asm_output_opcode (STREAM, PTR)) |
| |
| #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \ |
| do \ |
| { \ |
| char label[256]; \ |
| ASM_GENERATE_INTERNAL_LABEL (label, "L", (VALUE));\ |
| fprintf (FILE, "\t.word "); \ |
| assemble_name (FILE, label); \ |
| fprintf (FILE, "\n"); \ |
| } \ |
| while (0) |
| |
| #define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \ |
| do \ |
| { \ |
| char label[256]; \ |
| ASM_GENERATE_INTERNAL_LABEL (label, "L", (VALUE)); \ |
| fprintf (FILE, "\t.word "); \ |
| assemble_name (FILE, label); \ |
| ASM_GENERATE_INTERNAL_LABEL (label, "L", (REL)); \ |
| fprintf (FILE, "-"); \ |
| assemble_name (FILE, label); \ |
| fprintf (FILE, "\n"); \ |
| } \ |
| while (0) |
| |
| #define ASM_OUTPUT_ALIGN(FILE,LOG) \ |
| do { if ((LOG) != 0) fprintf (FILE, "\t.align %d\n", 1 << (LOG)); } while (0) |
| |
| #define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \ |
| ( fputs (".comm ", (FILE)), \ |
| assemble_name ((FILE), (NAME)), \ |
| fprintf ((FILE), ",%u\n", (unsigned int)(ROUNDED))) |
| |
| #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \ |
| ( fputs (".lcomm ", (FILE)), \ |
| assemble_name ((FILE), (NAME)), \ |
| fprintf ((FILE), ",%u\n", (unsigned int)(ROUNDED))) |
| |
| |
| |
| #define INIT_EXPANDERS tilepro_init_expanders () |
| |
| /* A C structure for machine-specific, per-function data. This is |
| added to the cfun structure. */ |
| typedef struct GTY(()) machine_function |
| { |
| /* Symbol for the text label used for pic. */ |
| rtx text_label_symbol; |
| |
| /* Register for the text label. */ |
| rtx text_label_rtx; |
| |
| /* Register for the pic offset table. */ |
| rtx got_rtx; |
| |
| /* The function calls tls_get_addr. */ |
| int calls_tls_get_addr; |
| } machine_function; |
| |
| #ifndef HAVE_AS_TLS |
| #define HAVE_AS_TLS 0 |
| #endif |