gcc/config/tilepro/tilepro.h - gcc - Git at Google

 /* Definitions of target machine for GNU compiler for TILEPro.
    Copyright (C) 2011-2021 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
	/* Definitions of target machine for GNU compiler for TILEPro.
	Copyright (C) 2011-2021 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