1 /* Declarations for insn-output.c. These functions are defined in recog.c,
3 Copyright (C) 1987, 1991, 1994, 1997, 1998, 1999, 2000, 2001, 2002,
4 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
5 Free Software Foundation, Inc.
7 This file is part of GCC.
9 GCC is free software; you can redistribute it and/or modify it under
10 the terms of the GNU General Public License as published by the Free
11 Software Foundation; either version 3, or (at your option) any later
14 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
15 WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 You should have received a copy of the GNU General Public License
20 along with GCC; see the file COPYING3. If not see
21 <http://www.gnu.org/licenses/>. */
26 /* Initialize data in final at the beginning of a compilation. */
27 extern void init_final (const char *);
29 /* Enable APP processing of subsequent output.
30 Used before the output from an `asm' statement. */
31 extern void app_enable (void);
33 /* Disable APP processing of subsequent output.
34 Called from varasm.c before most kinds of output. */
35 extern void app_disable (void);
37 /* Return the number of slots filled in the current
38 delayed branch sequence (we don't count the insn needing the
39 delay slot). Zero if not in a delayed branch sequence. */
40 extern int dbr_sequence_length (void);
42 /* Indicate that branch shortening hasn't yet been done. */
43 extern void init_insn_lengths (void);
45 /* Obtain the current length of an insn. If branch shortening has been done,
46 get its actual length. Otherwise, get its maximum length. */
47 extern int get_attr_length (rtx
);
49 /* Obtain the current length of an insn. If branch shortening has been done,
50 get its actual length. Otherwise, get its minimum length. */
51 extern int get_attr_min_length (rtx
);
53 /* Make a pass over all insns and compute their actual lengths by shortening
54 any branches of variable length if possible. */
55 extern void shorten_branches (rtx
);
57 /* Output assembler code for the start of a function,
58 and initialize some of the variables in this file
59 for the new function. The label for the function and associated
60 assembler pseudo-ops have already been output in
61 `assemble_start_function'. */
62 extern void final_start_function (rtx
, FILE *, int);
64 /* Output assembler code for the end of a function.
65 For clarity, args are same as those of `final_start_function'
66 even though not all of them are needed. */
67 extern void final_end_function (void);
69 /* Output assembler code for some insns: all or part of a function. */
70 extern void final (rtx
, FILE *, int);
72 /* The final scan for one insn, INSN. Args are same as in `final', except
73 that INSN is the insn being scanned. Value returned is the next insn to
75 extern rtx
final_scan_insn (rtx
, FILE *, int, int, int *);
77 /* Replace a SUBREG with a REG or a MEM, based on the thing it is a
79 extern rtx
alter_subreg (rtx
*);
81 /* Print an operand using machine-dependent assembler syntax. */
82 extern void output_operand (rtx
, int);
84 /* Report inconsistency between the assembler template and the operands.
85 In an `asm', it's the user's fault; otherwise, the compiler's fault. */
86 extern void output_operand_lossage (const char *, ...) ATTRIBUTE_PRINTF_1
;
88 /* Output a string of assembler code, substituting insn operands.
89 Defined in final.c. */
90 extern void output_asm_insn (const char *, rtx
*);
92 /* Compute a worst-case reference address of a branch so that it
93 can be safely used in the presence of aligned labels.
94 Defined in final.c. */
95 extern int insn_current_reference_address (rtx
);
97 /* Find the alignment associated with a CODE_LABEL.
98 Defined in final.c. */
99 extern int label_to_alignment (rtx
);
101 /* Find the alignment maximum skip associated with a CODE_LABEL.
102 Defined in final.c. */
103 extern int label_to_max_skip (rtx
);
105 /* Output a LABEL_REF, or a bare CODE_LABEL, as an assembler symbol. */
106 extern void output_asm_label (rtx
);
108 /* Marks SYMBOL_REFs in x as referenced through use of assemble_external. */
109 extern void mark_symbol_refs_as_used (rtx
);
111 /* Print a memory reference operand for address X
112 using machine-dependent assembler syntax. */
113 extern void output_address (rtx
);
115 /* Print an integer constant expression in assembler syntax.
116 Addition and subtraction are the only arithmetic
117 that may appear in these expressions. */
118 extern void output_addr_const (FILE *, rtx
);
120 /* Output a string of assembler code, substituting numbers, strings
121 and fixed syntactic prefixes. */
122 #if GCC_VERSION >= 3004
123 #define ATTRIBUTE_ASM_FPRINTF(m, n) __attribute__ ((__format__ (__asm_fprintf__, m, n))) ATTRIBUTE_NONNULL(m)
125 #define ATTRIBUTE_ASM_FPRINTF(m, n) ATTRIBUTE_NONNULL(m)
128 extern void fprint_whex (FILE *, unsigned HOST_WIDE_INT
);
129 extern void fprint_ul (FILE *, unsigned long);
130 extern int sprint_ul (char *, unsigned long);
132 extern void asm_fprintf (FILE *file
, const char *p
, ...)
133 ATTRIBUTE_ASM_FPRINTF(2, 3);
135 /* Return nonzero if this function has no function calls. */
136 extern int leaf_function_p (void);
138 /* Return 1 if branch is a forward branch.
139 Uses insn_shuid array, so it works only in the final pass. May be used by
140 output templates to add branch prediction hints, for example. */
141 extern int final_forward_branch_p (rtx
);
143 /* Return 1 if this function uses only the registers that can be
144 safely renumbered. */
145 extern int only_leaf_regs_used (void);
147 /* Scan IN_RTX and its subexpressions, and renumber all regs into those
148 available in leaf functions. */
149 extern void leaf_renumber_regs_insn (rtx
);
151 /* Locate the proper template for the given insn-code. */
152 extern const char *get_insn_template (int, rtx
);
154 /* Functions in varasm.c. */
156 /* Emit any pending weak declarations. */
157 extern void weak_finish (void);
159 /* Decode an `asm' spec for a declaration as a register name.
160 Return the register number, or -1 if nothing specified,
161 or -2 if the ASMSPEC is not `cc' or `memory' and is not recognized,
162 or -3 if ASMSPEC is `cc' and is not recognized,
163 or -4 if ASMSPEC is `memory' and is not recognized.
164 Accept an exact spelling or a decimal number.
165 Prefixes such as % are optional. */
166 extern int decode_reg_name (const char *);
168 /* Similar to decode_reg_name, but takes an extra parameter that is a
169 pointer to the number of (internal) registers described by the
171 extern int decode_reg_name_and_count (const char *, int *);
173 extern void do_assemble_alias (tree
, tree
);
175 extern void default_assemble_visibility (tree
, int);
177 /* Output a string of literal assembler code
178 for an `asm' keyword used between functions. */
179 extern void assemble_asm (tree
);
181 /* Output assembler code for the constant pool of a function and associated
182 with defining the name of the function. DECL describes the function.
183 NAME is the function's name. For the constant pool, we use the current
184 constant pool data. */
185 extern void assemble_start_function (tree
, const char *);
187 /* Output assembler code associated with defining the size of the
188 function. DECL describes the function. NAME is the function's name. */
189 extern void assemble_end_function (tree
, const char *);
191 /* Assemble everything that is needed for a variable or function declaration.
192 Not used for automatic variables, and not used for function definitions.
193 Should not be called for variables of incomplete structure type.
195 TOP_LEVEL is nonzero if this variable has file scope.
196 AT_END is nonzero if this is the special handling, at end of compilation,
197 to define things that have had only tentative definitions.
198 DONT_OUTPUT_DATA if nonzero means don't actually output the
199 initial value (that will be done by the caller). */
200 extern void assemble_variable (tree
, int, int, int);
202 /* Compute the alignment of variable specified by DECL.
203 DONT_OUTPUT_DATA is from assemble_variable. */
204 extern void align_variable (tree decl
, bool dont_output_data
);
206 /* Queue for outputting something to declare an external symbol to the
207 assembler. (Most assemblers don't need this, so we normally output
208 nothing.) Do nothing if DECL is not external. */
209 extern void assemble_external (tree
);
211 /* Assemble code to leave SIZE bytes of zeros. */
212 extern void assemble_zeros (unsigned HOST_WIDE_INT
);
214 /* Assemble an alignment pseudo op for an ALIGN-bit boundary. */
215 extern void assemble_align (int);
217 /* Assemble a string constant with the specified C string as contents. */
218 extern void assemble_string (const char *, int);
220 /* Similar, for calling a library function FUN. */
221 extern void assemble_external_libcall (rtx
);
223 /* Assemble a label named NAME. */
224 extern void assemble_label (FILE *, const char *);
226 /* Output to FILE (an assembly file) a reference to NAME. If NAME
227 starts with a *, the rest of NAME is output verbatim. Otherwise
228 NAME is transformed in a target-specific way (usually by the
229 addition of an underscore). */
230 extern void assemble_name_raw (FILE *, const char *);
232 /* Like assemble_name_raw, but should be used when NAME might refer to
233 an entity that is also represented as a tree (like a function or
234 variable). If NAME does refer to such an entity, that entity will
235 be marked as referenced. */
236 extern void assemble_name (FILE *, const char *);
238 /* Return the assembler directive for creating a given kind of integer
239 object. SIZE is the number of bytes in the object and ALIGNED_P
240 indicates whether it is known to be aligned. Return NULL if the
241 assembly dialect has no such directive.
243 The returned string should be printed at the start of a new line and
244 be followed immediately by the object's initial value. */
245 extern const char *integer_asm_op (int, int);
247 /* Use directive OP to assemble an integer object X. Print OP at the
248 start of the line, followed immediately by the value of X. */
249 extern void assemble_integer_with_op (const char *, rtx
);
251 /* The default implementation of the asm_out.integer target hook. */
252 extern bool default_assemble_integer (rtx
, unsigned int, int);
254 /* Assemble the integer constant X into an object of SIZE bytes. ALIGN is
255 the alignment of the integer in bits. Return 1 if we were able to output
256 the constant, otherwise 0. If FORCE is nonzero the constant must
258 extern bool assemble_integer (rtx
, unsigned, unsigned, int);
260 /* Return section for TEXT_SECITON_NAME if DECL or DECL_SECTION_NAME (DECL)
262 extern section
*get_named_text_section (tree
, const char *, const char *);
264 /* An interface to assemble_integer for the common case in which a value is
265 fully aligned and must be printed. VALUE is the value of the integer
266 object and SIZE is the number of bytes it contains. */
267 #define assemble_aligned_integer(SIZE, VALUE) \
268 assemble_integer (VALUE, SIZE, (SIZE) * BITS_PER_UNIT, 1)
270 #ifdef REAL_VALUE_TYPE_SIZE
271 /* Assemble the floating-point constant D into an object of size MODE. */
272 extern void assemble_real (REAL_VALUE_TYPE
, enum machine_mode
, unsigned);
275 /* Write the address of the entity given by SYMBOL to SEC. */
276 extern void assemble_addr_to_section (rtx
, section
*);
278 /* Return the size of the constant pool. */
279 extern int get_pool_size (void);
282 extern rtx
peephole (rtx
);
285 extern void output_shared_constant_pool (void);
287 extern void output_object_blocks (void);
289 extern void output_quoted_string (FILE *, const char *);
291 /* Output assembler code for constant EXP to FILE, with no label.
292 This includes the pseudo-op such as ".int" or ".byte", and a newline.
293 Assumes output_addressed_constants has been done on EXP already.
295 Generate exactly SIZE bytes of assembler data, padding at the end
296 with zeros if necessary. SIZE must always be specified.
298 ALIGN is the alignment in bits that may be assumed for the data. */
299 extern void output_constant (tree
, unsigned HOST_WIDE_INT
, unsigned int);
301 /* When outputting delayed branch sequences, this rtx holds the
302 sequence being output. It is null when no delayed branch
303 sequence is being output, so it can be used as a test in the
306 This variable is defined in final.c. */
307 extern rtx final_sequence
;
309 /* The line number of the beginning of the current function. Various
310 md code needs this so that it can output relative linenumbers. */
312 #ifdef SDB_DEBUGGING_INFO /* Avoid undef sym in certain broken linkers. */
313 extern int sdb_begin_function_line
;
316 /* File in which assembler code is being written. */
319 extern FILE *asm_out_file
;
322 /* The first global object in the file. */
323 extern const char *first_global_object_name
;
325 /* The first weak object in the file. */
326 extern const char *weak_global_object_name
;
328 /* Nonzero if function being compiled doesn't contain any calls
329 (ignoring the prologue and epilogue). This is set prior to
330 local register allocation and is valid for the remaining
333 extern int current_function_is_leaf
;
335 /* Nonzero if function being compiled doesn't modify the stack pointer
336 (ignoring the prologue and epilogue). This is only valid after
337 pass_stack_ptr_mod has run. */
339 extern int current_function_sp_is_unchanging
;
341 /* Nonzero if the function being compiled is a leaf function which only
342 uses leaf registers. This is valid after reload (specifically after
343 sched2) and is useful only if the port defines LEAF_REGISTERS. */
345 extern int current_function_uses_only_leaf_regs
;
347 /* Nonnull if the insn currently being emitted was a COND_EXEC pattern. */
348 extern rtx current_insn_predicate
;
350 /* Last insn processed by final_scan_insn. */
351 extern rtx current_output_insn
;
353 /* Nonzero while outputting an `asm' with operands.
354 This means that inconsistencies are the user's fault, so don't die.
355 The precise value is the insn being output, to pass to error_for_asm. */
356 extern rtx this_is_asm_operands
;
358 /* Carry information from ASM_DECLARE_OBJECT_NAME
359 to ASM_FINISH_DECLARE_OBJECT. */
360 extern int size_directive_output
;
361 extern tree last_assemble_variable_decl
;
363 extern bool first_function_block_is_cold
;
365 /* Decide whether DECL needs to be in a writable section.
366 RELOC is the same as for SELECT_SECTION. */
367 extern bool decl_readonly_section (const_tree
, int);
369 /* This can be used to compute RELOC for the function above, when
370 given a constant expression. */
371 extern int compute_reloc_for_constant (tree
);
373 /* User label prefix in effect for this compilation. */
374 extern const char *user_label_prefix
;
376 /* Default target function prologue and epilogue assembler output. */
377 extern void default_function_pro_epilogue (FILE *, HOST_WIDE_INT
);
379 /* Default target function switched text sections. */
380 extern void default_function_switched_text_sections (FILE *, tree
, bool);
382 /* Default target hook that outputs nothing to a stream. */
383 extern void no_asm_to_stream (FILE *);
385 /* Flags controlling properties of a section. */
386 #define SECTION_ENTSIZE 0x000ff /* entity size in section */
387 #define SECTION_CODE 0x00100 /* contains code */
388 #define SECTION_WRITE 0x00200 /* data is writable */
389 #define SECTION_DEBUG 0x00400 /* contains debug data */
390 #define SECTION_LINKONCE 0x00800 /* is linkonce */
391 #define SECTION_SMALL 0x01000 /* contains "small data" */
392 #define SECTION_BSS 0x02000 /* contains zeros only */
393 #define SECTION_FORGET 0x04000 /* forget that we've entered the section */
394 #define SECTION_MERGE 0x08000 /* contains mergeable data */
395 #define SECTION_STRINGS 0x10000 /* contains zero terminated strings without
397 #define SECTION_OVERRIDE 0x20000 /* allow override of default flags */
398 #define SECTION_TLS 0x40000 /* contains thread-local storage */
399 #define SECTION_NOTYPE 0x80000 /* don't output @progbits */
400 #define SECTION_DECLARED 0x100000 /* section has been used */
401 #define SECTION_STYLE_MASK 0x600000 /* bits used for SECTION_STYLE */
402 #define SECTION_COMMON 0x800000 /* contains common data */
403 #define SECTION_RELRO 0x1000000 /* data is readonly after relocation processing */
404 #define SECTION_EXCLUDE 0x2000000 /* discarded by the linker */
405 #define SECTION_MACH_DEP 0x4000000 /* subsequent bits reserved for target */
407 /* This SECTION_STYLE is used for unnamed sections that we can switch
408 to using a special assembler directive. */
409 #define SECTION_UNNAMED 0x000000
411 /* This SECTION_STYLE is used for named sections that we can switch
412 to using a general section directive. */
413 #define SECTION_NAMED 0x200000
415 /* This SECTION_STYLE is used for sections that we cannot switch to at
416 all. The choice of section is implied by the directive that we use
417 to declare the object. */
418 #define SECTION_NOSWITCH 0x400000
420 /* A helper function for default_elf_select_section and
421 default_elf_unique_section. Categorizes the DECL. */
423 enum section_category
428 SECCAT_RODATA_MERGE_STR
,
429 SECCAT_RODATA_MERGE_STR_INIT
,
430 SECCAT_RODATA_MERGE_CONST
,
435 /* To optimize loading of shared programs, define following subsections
437 _REL Contains data that has relocations, so they get grouped
438 together and dynamic linker will visit fewer pages in memory.
439 _RO Contains data that is otherwise read-only. This is useful
440 with prelinking as most relocations won't be dynamically
441 linked and thus stay read only.
442 _LOCAL Marks data containing relocations only to local objects.
443 These relocations will get fully resolved by prelinking. */
445 SECCAT_DATA_REL_LOCAL
,
447 SECCAT_DATA_REL_RO_LOCAL
,
457 /* Information that is provided by all instances of the section type. */
458 struct GTY(()) section_common
{
459 /* The set of SECTION_* flags that apply to this section. */
463 /* Information about a SECTION_NAMED section. */
464 struct GTY(()) named_section
{
465 struct section_common common
;
467 /* The name of the section. */
470 /* If nonnull, the VAR_DECL or FUNCTION_DECL with which the
471 section is associated. */
475 /* A callback that writes the assembly code for switching to an unnamed
476 section. The argument provides callback-specific data. */
477 typedef void (*unnamed_section_callback
) (const void *);
479 /* Information about a SECTION_UNNAMED section. */
480 struct GTY(()) unnamed_section
{
481 struct section_common common
;
483 /* The callback used to switch to the section, and the data that
484 should be passed to the callback. */
485 unnamed_section_callback
GTY ((skip
)) callback
;
486 const void *GTY ((skip
)) data
;
488 /* The next entry in the chain of unnamed sections. */
492 /* A callback that writes the assembly code for a decl in a
493 SECTION_NOSWITCH section. DECL is the decl that should be assembled
494 and NAME is the name of its SYMBOL_REF. SIZE is the size of the decl
495 in bytes and ROUNDED is that size rounded up to the next
496 BIGGEST_ALIGNMENT / BITS_PER_UNIT boundary.
498 Return true if the callback used DECL_ALIGN to set the object's
499 alignment. A false return value implies that we are relying
500 on the rounded size to align the decl. */
501 typedef bool (*noswitch_section_callback
) (tree decl
, const char *name
,
502 unsigned HOST_WIDE_INT size
,
503 unsigned HOST_WIDE_INT rounded
);
505 /* Information about a SECTION_NOSWITCH section. */
506 struct GTY(()) noswitch_section
{
507 struct section_common common
;
509 /* The callback used to assemble decls in this section. */
510 noswitch_section_callback
GTY ((skip
)) callback
;
513 /* Information about a section, which may be named or unnamed. */
514 union GTY ((desc ("SECTION_STYLE (&(%h))"))) section
{
515 struct section_common
GTY ((skip
)) common
;
516 struct named_section
GTY ((tag ("SECTION_NAMED"))) named
;
517 struct unnamed_section
GTY ((tag ("SECTION_UNNAMED"))) unnamed
;
518 struct noswitch_section
GTY ((tag ("SECTION_NOSWITCH"))) noswitch
;
521 /* Return the style of section SECT. */
522 #define SECTION_STYLE(SECT) ((SECT)->common.flags & SECTION_STYLE_MASK)
526 /* Special well-known sections. */
527 extern GTY(()) section
*text_section
;
528 extern GTY(()) section
*data_section
;
529 extern GTY(()) section
*readonly_data_section
;
530 extern GTY(()) section
*sdata_section
;
531 extern GTY(()) section
*ctors_section
;
532 extern GTY(()) section
*dtors_section
;
533 extern GTY(()) section
*bss_section
;
534 extern GTY(()) section
*sbss_section
;
535 extern GTY(()) section
*exception_section
;
536 extern GTY(()) section
*eh_frame_section
;
537 extern GTY(()) section
*tls_comm_section
;
538 extern GTY(()) section
*comm_section
;
539 extern GTY(()) section
*lcomm_section
;
540 extern GTY(()) section
*bss_noswitch_section
;
542 extern GTY(()) section
*in_section
;
543 extern GTY(()) bool in_cold_section_p
;
545 extern section
*get_unnamed_section (unsigned int, void (*) (const void *),
547 extern section
*get_section (const char *, unsigned int, tree
);
548 extern section
*get_named_section (tree
, const char *, int);
549 extern section
*get_variable_section (tree
, bool);
550 extern void place_block_symbol (rtx
);
551 extern rtx
get_section_anchor (struct object_block
*, HOST_WIDE_INT
,
553 extern section
*mergeable_constant_section (enum machine_mode
,
554 unsigned HOST_WIDE_INT
,
556 extern section
*function_section (tree
);
557 extern section
*unlikely_text_section (void);
558 extern section
*current_function_section (void);
560 /* Return the numbered .ctors.N (if CONSTRUCTOR_P) or .dtors.N (if
561 not) section for PRIORITY. */
562 extern section
*get_cdtor_priority_section (int, bool);
564 extern bool unlikely_text_section_p (section
*);
565 extern void switch_to_section (section
*);
566 extern void output_section_asm_op (const void *);
568 extern void record_tm_clone_pair (tree
, tree
);
569 extern void finish_tm_clone_pairs (void);
570 extern tree
get_tm_clone_pair (tree
);
572 extern void default_asm_output_source_filename (FILE *, const char *);
573 extern void output_file_directive (FILE *, const char *);
575 extern unsigned int default_section_type_flags (tree
, const char *, int);
577 extern bool have_global_bss_p (void);
578 extern void default_no_named_section (const char *, unsigned int, tree
);
579 extern void default_elf_asm_named_section (const char *, unsigned int, tree
);
580 extern enum section_category
categorize_decl_for_section (const_tree
, int);
581 extern void default_coff_asm_named_section (const char *, unsigned int, tree
);
582 extern void default_pe_asm_named_section (const char *, unsigned int, tree
);
584 extern void default_named_section_asm_out_destructor (rtx
, int);
585 extern void default_dtor_section_asm_out_destructor (rtx
, int);
586 extern void default_named_section_asm_out_constructor (rtx
, int);
587 extern void default_ctor_section_asm_out_constructor (rtx
, int);
589 extern section
*default_select_section (tree
, int, unsigned HOST_WIDE_INT
);
590 extern section
*default_elf_select_section (tree
, int, unsigned HOST_WIDE_INT
);
591 extern void default_unique_section (tree
, int);
592 extern section
*default_function_rodata_section (tree
);
593 extern section
*default_no_function_rodata_section (tree
);
594 extern section
*default_clone_table_section (void);
595 extern section
*default_select_rtx_section (enum machine_mode
, rtx
,
596 unsigned HOST_WIDE_INT
);
597 extern section
*default_elf_select_rtx_section (enum machine_mode
, rtx
,
598 unsigned HOST_WIDE_INT
);
599 extern void default_encode_section_info (tree
, rtx
, int);
600 extern const char *default_strip_name_encoding (const char *);
601 extern void default_asm_output_anchor (rtx
);
602 extern bool default_use_anchors_for_symbol_p (const_rtx
);
603 extern bool default_binds_local_p (const_tree
);
604 extern bool default_binds_local_p_1 (const_tree
, int);
605 extern void default_globalize_label (FILE *, const char *);
606 extern void default_globalize_decl_name (FILE *, tree
);
607 extern void default_emit_unwind_label (FILE *, tree
, int, int);
608 extern void default_emit_except_table_label (FILE *);
609 extern void default_generate_internal_label (char *, const char *,
611 extern void default_internal_label (FILE *, const char *, unsigned long);
612 extern void default_asm_declare_constant_name (FILE *, const char *,
613 const_tree
, HOST_WIDE_INT
);
614 extern void default_file_start (void);
615 extern void file_end_indicate_exec_stack (void);
616 extern void file_end_indicate_split_stack (void);
618 extern void default_elf_asm_output_external (FILE *file
, tree
,
620 extern void default_elf_asm_output_limited_string (FILE *, const char *);
621 extern void default_elf_asm_output_ascii (FILE *, const char *, unsigned int);
622 extern void default_elf_internal_label (FILE *, const char *, unsigned long);
624 extern void default_elf_init_array_asm_out_constructor (rtx
, int);
625 extern void default_elf_fini_array_asm_out_destructor (rtx
, int);
626 extern int maybe_assemble_visibility (tree
);
628 extern int default_address_cost (rtx
, bool);
630 /* Output stack usage information. */
631 extern void output_stack_usage (void);
633 #endif /* ! GCC_OUTPUT_H */