1 /* Definitions of various defaults for tm.h macros.
2 Copyright (C) 1992, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
3 Free Software Foundation, Inc.
4 Contributed by Ron Guilmette (rfg@monkeys.com)
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it under
9 the terms of the GNU General Public License as published by the Free
10 Software Foundation; either version 2, or (at your option) any later
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to the Free
20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
23 #ifndef GCC_DEFAULTS_H
24 #define GCC_DEFAULTS_H
26 #ifndef GET_ENVIRONMENT
27 #define GET_ENVIRONMENT(VALUE, NAME) do { (VALUE) = getenv (NAME); } while (0)
30 #define obstack_chunk_alloc ((void *(*) (long)) xmalloc)
31 #define obstack_chunk_free ((void (*) (void *)) free)
32 #define OBSTACK_CHUNK_SIZE 0
33 #define gcc_obstack_init(OBSTACK) \
34 _obstack_begin ((OBSTACK), OBSTACK_CHUNK_SIZE, 0, \
35 obstack_chunk_alloc, \
38 /* Define default standard character escape sequences. */
40 # define TARGET_BELL 007
41 # define TARGET_BS 010
42 # define TARGET_TAB 011
43 # define TARGET_NEWLINE 012
44 # define TARGET_VT 013
45 # define TARGET_FF 014
46 # define TARGET_CR 015
47 # define TARGET_ESC 033
50 /* When removal of CPP_PREDEFINES is complete, TARGET_CPU_CPP_BULITINS
51 can also be removed from here. */
52 #ifndef TARGET_OS_CPP_BUILTINS
53 # define TARGET_OS_CPP_BUILTINS()
55 #ifndef TARGET_CPU_CPP_BUILTINS
56 # define TARGET_CPU_CPP_BUILTINS()
58 #ifndef CPP_PREDEFINES
59 # define CPP_PREDEFINES ""
62 /* Store in OUTPUT a string (made with alloca) containing an
63 assembler-name for a local static variable or function named NAME.
64 LABELNO is an integer which is different for each call. */
67 # ifndef NO_DOT_IN_LABEL
68 # define ASM_PN_FORMAT "%s.%lu"
70 # ifndef NO_DOLLAR_IN_LABEL
71 # define ASM_PN_FORMAT "%s$%lu"
73 # define ASM_PN_FORMAT "__%s_%lu"
76 #endif /* ! ASM_PN_FORMAT */
78 #ifndef ASM_FORMAT_PRIVATE_NAME
79 # define ASM_FORMAT_PRIVATE_NAME(OUTPUT, NAME, LABELNO) \
80 do { const char *const name_ = (NAME); \
81 char *const output_ = (OUTPUT) = (char *) alloca (strlen (name_) + 32);\
82 sprintf (output_, ASM_PN_FORMAT, name_, (unsigned long)(LABELNO)); \
87 #define ASM_STABD_OP "\t.stabd\t"
90 /* This is how to output an element of a case-vector that is absolute.
91 Some targets don't use this, but we have to define it anyway. */
93 #ifndef ASM_OUTPUT_ADDR_VEC_ELT
94 #define ASM_OUTPUT_ADDR_VEC_ELT(FILE, VALUE) \
95 do { fputs (integer_asm_op (POINTER_SIZE / UNITS_PER_WORD, TRUE), FILE); \
96 (*targetm.asm_out.internal_label) (FILE, "L", (VALUE)); \
101 /* choose a reasonable default for ASM_OUTPUT_ASCII. */
103 #ifndef ASM_OUTPUT_ASCII
104 #define ASM_OUTPUT_ASCII(MYFILE, MYSTRING, MYLENGTH) \
106 FILE *_hide_asm_out_file = (MYFILE); \
107 const unsigned char *_hide_p = (const unsigned char *) (MYSTRING); \
108 int _hide_thissize = (MYLENGTH); \
110 FILE *asm_out_file = _hide_asm_out_file; \
111 const unsigned char *p = _hide_p; \
112 int thissize = _hide_thissize; \
114 fprintf (asm_out_file, "\t.ascii \""); \
116 for (i = 0; i < thissize; i++) \
119 if (c == '\"' || c == '\\') \
120 putc ('\\', asm_out_file); \
122 putc (c, asm_out_file); \
125 fprintf (asm_out_file, "\\%o", c); \
126 /* After an octal-escape, if a digit follows, \
127 terminate one string constant and start another. \
128 The VAX assembler fails to stop reading the escape \
129 after three digits, so this is the only way we \
130 can get it to parse the data properly. */ \
131 if (i < thissize - 1 && ISDIGIT(p[i + 1])) \
132 fprintf (asm_out_file, "\"\n\t.ascii \""); \
135 fprintf (asm_out_file, "\"\n"); \
141 /* This is how we tell the assembler to equate two values. */
143 #ifndef ASM_OUTPUT_DEF
144 #define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2) \
145 do { fprintf ((FILE), "%s", SET_ASM_OP); \
146 assemble_name (FILE, LABEL1); \
147 fprintf (FILE, ","); \
148 assemble_name (FILE, LABEL2); \
149 fprintf (FILE, "\n"); \
154 /* This is how to output the definition of a user-level label named
155 NAME, such as the label on a static function or variable NAME. */
157 #ifndef ASM_OUTPUT_LABEL
158 #define ASM_OUTPUT_LABEL(FILE,NAME) \
159 do { assemble_name ((FILE), (NAME)); fputs (":\n", (FILE)); } while (0)
162 /* This is how to output a reference to a user-level label named NAME. */
164 #ifndef ASM_OUTPUT_LABELREF
165 #define ASM_OUTPUT_LABELREF(FILE,NAME) asm_fprintf ((FILE), "%U%s", (NAME))
168 /* Allow target to print debug info labels specially. This is useful for
169 VLIW targets, since debug info labels should go into the middle of
170 instruction bundles instead of breaking them. */
172 #ifndef ASM_OUTPUT_DEBUG_LABEL
173 #define ASM_OUTPUT_DEBUG_LABEL(FILE, PREFIX, NUM) \
174 (*targetm.asm_out.internal_label) (FILE, PREFIX, NUM)
177 /* This is how we tell the assembler that a symbol is weak. */
178 #ifndef ASM_OUTPUT_WEAK_ALIAS
179 #if defined (ASM_WEAKEN_LABEL) && defined (ASM_OUTPUT_DEF)
180 #define ASM_OUTPUT_WEAK_ALIAS(STREAM, NAME, VALUE) \
183 ASM_WEAKEN_LABEL (STREAM, NAME); \
185 ASM_OUTPUT_DEF (STREAM, NAME, VALUE); \
191 /* How to emit a .type directive. */
192 #ifndef ASM_OUTPUT_TYPE_DIRECTIVE
193 #if defined TYPE_ASM_OP && defined TYPE_OPERAND_FMT
194 #define ASM_OUTPUT_TYPE_DIRECTIVE(STREAM, NAME, TYPE) \
197 fputs (TYPE_ASM_OP, STREAM); \
198 assemble_name (STREAM, NAME); \
199 fputs (", ", STREAM); \
200 fprintf (STREAM, TYPE_OPERAND_FMT, TYPE); \
201 putc ('\n', STREAM); \
207 /* How to emit a .size directive. */
208 #ifndef ASM_OUTPUT_SIZE_DIRECTIVE
210 #define ASM_OUTPUT_SIZE_DIRECTIVE(STREAM, NAME, SIZE) \
213 HOST_WIDE_INT size_ = (SIZE); \
214 fputs (SIZE_ASM_OP, STREAM); \
215 assemble_name (STREAM, NAME); \
216 fputs (", ", STREAM); \
217 fprintf (STREAM, HOST_WIDE_INT_PRINT_DEC, size_); \
218 putc ('\n', STREAM); \
222 #define ASM_OUTPUT_MEASURED_SIZE(STREAM, NAME) \
225 fputs (SIZE_ASM_OP, STREAM); \
226 assemble_name (STREAM, NAME); \
227 fputs (", .-", STREAM); \
228 assemble_name (STREAM, NAME); \
229 putc ('\n', STREAM); \
236 /* This determines whether or not we support weak symbols. */
237 #ifndef SUPPORTS_WEAK
238 #if defined (ASM_WEAKEN_LABEL) || defined (ASM_WEAKEN_DECL)
239 #define SUPPORTS_WEAK 1
241 #define SUPPORTS_WEAK 0
245 /* This determines whether or not we support link-once semantics. */
246 #ifndef SUPPORTS_ONE_ONLY
247 #ifdef MAKE_DECL_ONE_ONLY
248 #define SUPPORTS_ONE_ONLY 1
250 #define SUPPORTS_ONE_ONLY 0
254 /* By default, there is no prefix on user-defined symbols. */
255 #ifndef USER_LABEL_PREFIX
256 #define USER_LABEL_PREFIX ""
259 /* If the target supports weak symbols, define TARGET_ATTRIBUTE_WEAK to
260 provide a weak attribute. Else define it to nothing.
262 This would normally belong in ansidecl.h, but SUPPORTS_WEAK is
263 not available at that time.
265 Note, this is only for use by target files which we know are to be
267 #ifndef TARGET_ATTRIBUTE_WEAK
269 # define TARGET_ATTRIBUTE_WEAK __attribute__ ((weak))
271 # define TARGET_ATTRIBUTE_WEAK
275 /* If the target supports init_priority C++ attribute, give
276 SUPPORTS_INIT_PRIORITY a nonzero value. */
277 #ifndef SUPPORTS_INIT_PRIORITY
278 #define SUPPORTS_INIT_PRIORITY 1
279 #endif /* SUPPORTS_INIT_PRIORITY */
281 /* If duplicate library search directories can be removed from a
282 linker command without changing the linker's semantics, give this
284 #ifndef LINK_ELIMINATE_DUPLICATE_LDIRECTORIES
285 #define LINK_ELIMINATE_DUPLICATE_LDIRECTORIES 0
286 #endif /* LINK_ELIMINATE_DUPLICATE_LDIRECTORIES */
288 /* If we have a definition of INCOMING_RETURN_ADDR_RTX, assume that
289 the rest of the DWARF 2 frame unwind support is also provided. */
290 #if !defined (DWARF2_UNWIND_INFO) && defined (INCOMING_RETURN_ADDR_RTX)
291 #define DWARF2_UNWIND_INFO 1
294 /* If we have named sections, and we're using crtstuff to run ctors,
295 use them for registering eh frame information. */
296 #if defined (TARGET_ASM_NAMED_SECTION) && DWARF2_UNWIND_INFO \
297 && !defined(EH_FRAME_IN_DATA_SECTION)
298 #ifndef EH_FRAME_SECTION_NAME
299 #define EH_FRAME_SECTION_NAME ".eh_frame"
303 /* If we have named section and we support weak symbols, then use the
304 .jcr section for recording java classes which need to be registered
305 at program start-up time. */
306 #if defined (TARGET_ASM_NAMED_SECTION) && SUPPORTS_WEAK
307 #ifndef JCR_SECTION_NAME
308 #define JCR_SECTION_NAME ".jcr"
312 /* By default, we generate a label at the beginning and end of the
313 text section, and compute the size of the text section by
314 subtracting the two. However, on some platforms that doesn't
315 work, and we use the section itself, rather than a label at the
316 beginning of it, to indicate the start of the section. On such
317 platforms, define this to zero. */
318 #ifndef DWARF2_GENERATE_TEXT_SECTION_LABEL
319 #define DWARF2_GENERATE_TEXT_SECTION_LABEL 1
322 /* Supply a default definition for PROMOTE_PROTOTYPES. */
323 #ifndef PROMOTE_PROTOTYPES
324 #define PROMOTE_PROTOTYPES 0
327 /* Number of hardware registers that go into the DWARF-2 unwind info.
328 If not defined, equals FIRST_PSEUDO_REGISTER */
330 #ifndef DWARF_FRAME_REGISTERS
331 #define DWARF_FRAME_REGISTERS FIRST_PSEUDO_REGISTER
334 /* How to renumber registers for dbx and gdb. If not defined, assume
335 no renumbering is necessary. */
337 #ifndef DBX_REGISTER_NUMBER
338 #define DBX_REGISTER_NUMBER(REGNO) (REGNO)
341 /* Default sizes for base C types. If the sizes are different for
342 your target, you should override these values by defining the
343 appropriate symbols in your tm.h file. */
345 #ifndef BITS_PER_UNIT
346 #define BITS_PER_UNIT 8
349 #ifndef BITS_PER_WORD
350 #define BITS_PER_WORD (BITS_PER_UNIT * UNITS_PER_WORD)
353 #ifndef CHAR_TYPE_SIZE
354 #define CHAR_TYPE_SIZE BITS_PER_UNIT
357 #ifndef BOOL_TYPE_SIZE
358 /* `bool' has size and alignment `1', on almost all platforms. */
359 #define BOOL_TYPE_SIZE CHAR_TYPE_SIZE
362 #ifndef SHORT_TYPE_SIZE
363 #define SHORT_TYPE_SIZE (BITS_PER_UNIT * MIN ((UNITS_PER_WORD + 1) / 2, 2))
366 #ifndef INT_TYPE_SIZE
367 #define INT_TYPE_SIZE BITS_PER_WORD
370 #ifndef LONG_TYPE_SIZE
371 #define LONG_TYPE_SIZE BITS_PER_WORD
374 #ifndef LONG_LONG_TYPE_SIZE
375 #define LONG_LONG_TYPE_SIZE (BITS_PER_WORD * 2)
378 #ifndef WCHAR_TYPE_SIZE
379 #define WCHAR_TYPE_SIZE INT_TYPE_SIZE
382 #ifndef FLOAT_TYPE_SIZE
383 #define FLOAT_TYPE_SIZE BITS_PER_WORD
386 #ifndef DOUBLE_TYPE_SIZE
387 #define DOUBLE_TYPE_SIZE (BITS_PER_WORD * 2)
390 #ifndef LONG_DOUBLE_TYPE_SIZE
391 #define LONG_DOUBLE_TYPE_SIZE (BITS_PER_WORD * 2)
394 /* Width in bits of a pointer. Mind the value of the macro `Pmode'. */
396 #define POINTER_SIZE BITS_PER_WORD
399 #ifndef BUILD_VA_LIST_TYPE
400 #define BUILD_VA_LIST_TYPE(X) ((X) = ptr_type_node)
403 #ifndef PIC_OFFSET_TABLE_REGNUM
404 #define PIC_OFFSET_TABLE_REGNUM INVALID_REGNUM
407 /* By default, the preprocessor should be invoked the same way in C++
409 #ifndef CPLUSPLUS_CPP_SPEC
411 #define CPLUSPLUS_CPP_SPEC CPP_SPEC
415 #ifndef ACCUMULATE_OUTGOING_ARGS
416 #define ACCUMULATE_OUTGOING_ARGS 0
419 /* Supply a default definition for PUSH_ARGS. */
422 #define PUSH_ARGS !ACCUMULATE_OUTGOING_ARGS
428 /* If PREFERRED_STACK_BOUNDARY is not defined, set it to STACK_BOUNDARY.
429 STACK_BOUNDARY is required. */
430 #ifndef PREFERRED_STACK_BOUNDARY
431 #define PREFERRED_STACK_BOUNDARY STACK_BOUNDARY
434 /* By default, the C++ compiler will use function addresses in the
435 vtable entries. Setting this nonzero tells the compiler to use
436 function descriptors instead. The value of this macro says how
437 many words wide the descriptor is (normally 2). It is assumed
438 that the address of a function descriptor may be treated as a
439 pointer to a function. */
440 #ifndef TARGET_VTABLE_USES_DESCRIPTORS
441 #define TARGET_VTABLE_USES_DESCRIPTORS 0
444 /* By default, the vtable entries are void pointers, the so the alignment
445 is the same as pointer alignment. The value of this macro specifies
446 the alignment of the vtable entry in bits. It should be defined only
447 when special alignment is necessary. */
448 #ifndef TARGET_VTABLE_ENTRY_ALIGN
449 #define TARGET_VTABLE_ENTRY_ALIGN POINTER_SIZE
452 /* There are a few non-descriptor entries in the vtable at offsets below
453 zero. If these entries must be padded (say, to preserve the alignment
454 specified by TARGET_VTABLE_ENTRY_ALIGN), set this to the number of
455 words in each data entry. */
456 #ifndef TARGET_VTABLE_DATA_ENTRY_DISTANCE
457 #define TARGET_VTABLE_DATA_ENTRY_DISTANCE 1
460 /* Select a format to encode pointers in exception handling data. We
461 prefer those that result in fewer dynamic relocations. Assume no
462 special support here and encode direct references. */
463 #ifndef ASM_PREFERRED_EH_DATA_FORMAT
464 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) DW_EH_PE_absptr
467 /* By default, the C++ compiler will use the lowest bit of the pointer
468 to function to indicate a pointer-to-member-function points to a
469 virtual member function. However, if FUNCTION_BOUNDARY indicates
470 function addresses aren't always even, the lowest bit of the delta
471 field will be used. */
472 #ifndef TARGET_PTRMEMFUNC_VBIT_LOCATION
473 #define TARGET_PTRMEMFUNC_VBIT_LOCATION \
474 (FUNCTION_BOUNDARY >= 2 * BITS_PER_UNIT \
475 ? ptrmemfunc_vbit_in_pfn : ptrmemfunc_vbit_in_delta)
478 #ifndef DEFAULT_GDB_EXTENSIONS
479 #define DEFAULT_GDB_EXTENSIONS 1
482 /* If more than one debugging type is supported, you must define
483 PREFERRED_DEBUGGING_TYPE to choose a format in a system-dependent way.
485 This is one long line cause VAXC can't handle a \-newline. */
486 #if 1 < (defined (DBX_DEBUGGING_INFO) + defined (SDB_DEBUGGING_INFO) + defined (DWARF_DEBUGGING_INFO) + defined (DWARF2_DEBUGGING_INFO) + defined (XCOFF_DEBUGGING_INFO) + defined (VMS_DEBUGGING_INFO))
487 #ifndef PREFERRED_DEBUGGING_TYPE
488 You Lose! You must define PREFERRED_DEBUGGING_TYPE!
489 #endif /* no PREFERRED_DEBUGGING_TYPE */
490 #else /* Only one debugging format supported. Define PREFERRED_DEBUGGING_TYPE
491 so other code needn't care. */
492 #ifdef DBX_DEBUGGING_INFO
493 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
495 #ifdef SDB_DEBUGGING_INFO
496 #define PREFERRED_DEBUGGING_TYPE SDB_DEBUG
498 #ifdef DWARF_DEBUGGING_INFO
499 #define PREFERRED_DEBUGGING_TYPE DWARF_DEBUG
501 #ifdef DWARF2_DEBUGGING_INFO
502 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
504 #ifdef VMS_DEBUGGING_INFO
505 #define PREFERRED_DEBUGGING_TYPE VMS_AND_DWARF2_DEBUG
507 #ifdef XCOFF_DEBUGGING_INFO
508 #define PREFERRED_DEBUGGING_TYPE XCOFF_DEBUG
510 #endif /* More than one debugger format enabled. */
512 /* If still not defined, must have been because no debugging formats
514 #ifndef PREFERRED_DEBUGGING_TYPE
515 #define PREFERRED_DEBUGGING_TYPE NO_DEBUG
518 /* Define codes for all the float formats that we know of. */
519 #define UNKNOWN_FLOAT_FORMAT 0
520 #define IEEE_FLOAT_FORMAT 1
521 #define VAX_FLOAT_FORMAT 2
522 #define IBM_FLOAT_FORMAT 3
523 #define C4X_FLOAT_FORMAT 4
525 /* Default to IEEE float if not specified. Nearly all machines use it. */
526 #ifndef TARGET_FLOAT_FORMAT
527 #define TARGET_FLOAT_FORMAT IEEE_FLOAT_FORMAT
530 /* Determine the register class for registers suitable to be the base
531 address register in a MEM. Allow the choice to be dependent upon
532 the mode of the memory access. */
533 #ifndef MODE_BASE_REG_CLASS
534 #define MODE_BASE_REG_CLASS(MODE) BASE_REG_CLASS
537 #ifndef LARGEST_EXPONENT_IS_NORMAL
538 #define LARGEST_EXPONENT_IS_NORMAL(SIZE) 0
541 #ifndef ROUND_TOWARDS_ZERO
542 #define ROUND_TOWARDS_ZERO 0
545 #ifndef MODE_HAS_NANS
546 #define MODE_HAS_NANS(MODE) \
547 (FLOAT_MODE_P (MODE) \
548 && TARGET_FLOAT_FORMAT == IEEE_FLOAT_FORMAT \
549 && !LARGEST_EXPONENT_IS_NORMAL (GET_MODE_BITSIZE (MODE)))
552 #ifndef MODE_HAS_INFINITIES
553 #define MODE_HAS_INFINITIES(MODE) \
554 (FLOAT_MODE_P (MODE) \
555 && TARGET_FLOAT_FORMAT == IEEE_FLOAT_FORMAT \
556 && !LARGEST_EXPONENT_IS_NORMAL (GET_MODE_BITSIZE (MODE)))
559 #ifndef MODE_HAS_SIGNED_ZEROS
560 #define MODE_HAS_SIGNED_ZEROS(MODE) \
561 (FLOAT_MODE_P (MODE) && TARGET_FLOAT_FORMAT == IEEE_FLOAT_FORMAT)
564 #ifndef MODE_HAS_SIGN_DEPENDENT_ROUNDING
565 #define MODE_HAS_SIGN_DEPENDENT_ROUNDING(MODE) \
566 (FLOAT_MODE_P (MODE) \
567 && TARGET_FLOAT_FORMAT == IEEE_FLOAT_FORMAT \
568 && !ROUND_TOWARDS_ZERO)
571 /* If FLOAT_WORDS_BIG_ENDIAN is not defined in the header files,
572 then the word-endianness is the same as for integers. */
573 #ifndef FLOAT_WORDS_BIG_ENDIAN
574 #define FLOAT_WORDS_BIG_ENDIAN WORDS_BIG_ENDIAN
577 #ifndef TARGET_FLT_EVAL_METHOD
578 #define TARGET_FLT_EVAL_METHOD 0
581 #ifndef HOT_TEXT_SECTION_NAME
582 #define HOT_TEXT_SECTION_NAME "text.hot"
585 #ifndef UNLIKELY_EXECUTED_TEXT_SECTION_NAME
586 #define UNLIKELY_EXECUTED_TEXT_SECTION_NAME "text.unlikely"
589 #ifndef VECTOR_MODE_SUPPORTED_P
590 #define VECTOR_MODE_SUPPORTED_P(MODE) 0
593 /* Determine whether __cxa_atexit, rather than atexit, is used to
594 register C++ destructors for local statics and global objects. */
595 #ifndef DEFAULT_USE_CXA_ATEXIT
596 #define DEFAULT_USE_CXA_ATEXIT 0
599 /* Determine whether extra constraint letter should be handled
600 via address reload (like 'o'). */
601 #ifndef EXTRA_MEMORY_CONSTRAINT
602 #define EXTRA_MEMORY_CONSTRAINT(C,STR) 0
605 /* Determine whether extra constraint letter should be handled
606 as an address (like 'p'). */
607 #ifndef EXTRA_ADDRESS_CONSTRAINT
608 #define EXTRA_ADDRESS_CONSTRAINT(C,STR) 0
611 /* When a port defines CONSTRAINT_LEN, it should use DEFAULT_CONSTRAINT_LEN
612 for all the characters that it does not want to change, so things like the
613 'length' of a digit in a matching constraint is an implementation detail,
614 and not part of the interface. */
615 #define DEFAULT_CONSTRAINT_LEN(C,STR) 1
617 #ifndef CONSTRAINT_LEN
618 #define CONSTRAINT_LEN(C,STR) DEFAULT_CONSTRAINT_LEN (C, STR)
621 #if defined (CONST_OK_FOR_LETTER_P) && ! defined (CONST_OK_FOR_CONSTRAINT_P)
622 #define CONST_OK_FOR_CONSTRAINT_P(VAL,C,STR) CONST_OK_FOR_LETTER_P (VAL, C)
625 #if defined (CONST_DOUBLE_OK_FOR_LETTER_P) && ! defined (CONST_DOUBLE_OK_FOR_CONSTRAINT_P)
626 #define CONST_DOUBLE_OK_FOR_CONSTRAINT_P(OP,C,STR) \
627 CONST_DOUBLE_OK_FOR_LETTER_P (OP, C)
630 #define REG_CLASS_FROM_CONSTRAINT(C,STR) REG_CLASS_FROM_LETTER (C)
632 #if defined (EXTRA_CONSTRAINT) && ! defined (EXTRA_CONSTRAINT_STR)
633 #define EXTRA_CONSTRAINT_STR(OP, C,STR) EXTRA_CONSTRAINT (OP, C)
636 /* Determine whether the the entire c99 runtime
637 is present in the runtime library. */
638 #ifndef TARGET_C99_FUNCTIONS
639 #define TARGET_C99_FUNCTIONS 0
642 /* Indicate that CLZ and CTZ are undefined at zero. */
643 #ifndef CLZ_DEFINED_VALUE_AT_ZERO
644 #define CLZ_DEFINED_VALUE_AT_ZERO(MODE, VALUE) 0
646 #ifndef CTZ_DEFINED_VALUE_AT_ZERO
647 #define CTZ_DEFINED_VALUE_AT_ZERO(MODE, VALUE) 0
650 #endif /* ! GCC_DEFAULTS_H */