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/* Definitions of target machine for GNU compiler for TILEPro.
Copyright (C) 2011-2022 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
/* 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_REALLY_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 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 \
}
/* 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 1
#define FRAME_GROWS_DOWNWARD 1
#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 1
#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 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
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