]>
Commit | Line | Data |
---|---|---|
5e6908ea | 1 | /* Register Transfer Language (RTL) definitions for GCC |
af841dbd | 2 | Copyright (C) 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, |
a0134312 | 3 | 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. |
6f29feb1 | 4 | |
1322177d | 5 | This file is part of GCC. |
6f29feb1 | 6 | |
1322177d LB |
7 | GCC is free software; you can redistribute it and/or modify it under |
8 | the terms of the GNU General Public License as published by the Free | |
9 | Software Foundation; either version 2, or (at your option) any later | |
10 | version. | |
6f29feb1 | 11 | |
1322177d LB |
12 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
13 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
14 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
15 | for more details. | |
6f29feb1 JW |
16 | |
17 | You should have received a copy of the GNU General Public License | |
1322177d LB |
18 | along with GCC; see the file COPYING. If not, write to the Free |
19 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
20 | 02111-1307, USA. */ | |
6f29feb1 | 21 | |
88657302 RH |
22 | #ifndef GCC_RTL_H |
23 | #define GCC_RTL_H | |
6f29feb1 | 24 | |
36edd3cc BS |
25 | struct function; |
26 | ||
6f29feb1 | 27 | #include "machmode.h" |
fd3acbb3 | 28 | #include "input.h" |
6f29feb1 JW |
29 | |
30 | #undef FFS /* Some systems predefine this symbol; don't let it interfere. */ | |
1cfc3092 | 31 | #undef FLOAT /* Likewise. */ |
ac889e46 | 32 | #undef ABS /* Likewise. */ |
71ae9cc6 | 33 | #undef PC /* Likewise. */ |
6f29feb1 | 34 | |
173b24b9 | 35 | /* Value used by some passes to "recognize" noop moves as valid |
eebedaa5 | 36 | instructions. */ |
b5832b43 JH |
37 | #define NOOP_MOVE_INSN_CODE INT_MAX |
38 | ||
6f29feb1 JW |
39 | /* Register Transfer Language EXPRESSIONS CODES */ |
40 | ||
41 | #define RTX_CODE enum rtx_code | |
42 | enum rtx_code { | |
43 | ||
44 | #define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) ENUM , | |
45 | #include "rtl.def" /* rtl expressions are documented here */ | |
46 | #undef DEF_RTL_EXPR | |
47 | ||
6dc42e49 | 48 | LAST_AND_UNUSED_RTX_CODE}; /* A convenient way to get a value for |
6f29feb1 | 49 | NUM_RTX_CODE. |
6dc42e49 | 50 | Assumes default enum value assignment. */ |
6f29feb1 | 51 | |
cf403648 | 52 | #define NUM_RTX_CODE ((int) LAST_AND_UNUSED_RTX_CODE) |
6f29feb1 JW |
53 | /* The cast here, saves many elsewhere. */ |
54 | ||
86460bab | 55 | extern const unsigned char rtx_length[NUM_RTX_CODE]; |
0f41302f | 56 | #define GET_RTX_LENGTH(CODE) (rtx_length[(int) (CODE)]) |
6f29feb1 | 57 | |
86460bab | 58 | extern const char * const rtx_name[NUM_RTX_CODE]; |
0f41302f | 59 | #define GET_RTX_NAME(CODE) (rtx_name[(int) (CODE)]) |
6f29feb1 | 60 | |
86460bab | 61 | extern const char * const rtx_format[NUM_RTX_CODE]; |
0f41302f | 62 | #define GET_RTX_FORMAT(CODE) (rtx_format[(int) (CODE)]) |
6f29feb1 | 63 | |
86460bab | 64 | extern const char rtx_class[NUM_RTX_CODE]; |
0f41302f | 65 | #define GET_RTX_CLASS(CODE) (rtx_class[(int) (CODE)]) |
36a5eadd | 66 | |
e1de1560 | 67 | extern const unsigned char rtx_size[NUM_RTX_CODE]; |
36a5eadd | 68 | extern const unsigned char rtx_next[NUM_RTX_CODE]; |
6f29feb1 | 69 | \f |
33f7f353 JR |
70 | /* The flags and bitfields of an ADDR_DIFF_VEC. BASE is the base label |
71 | relative to which the offsets are calculated, as explained in rtl.def. */ | |
72 | typedef struct | |
73 | { | |
74 | /* Set at the start of shorten_branches - ONLY WHEN OPTIMIZING - : */ | |
75 | unsigned min_align: 8; | |
76 | /* Flags: */ | |
77 | unsigned base_after_vec: 1; /* BASE is after the ADDR_DIFF_VEC. */ | |
173b24b9 RK |
78 | unsigned min_after_vec: 1; /* minimum address target label is |
79 | after the ADDR_DIFF_VEC. */ | |
80 | unsigned max_after_vec: 1; /* maximum address target label is | |
81 | after the ADDR_DIFF_VEC. */ | |
82 | unsigned min_after_base: 1; /* minimum address target label is | |
83 | after BASE. */ | |
84 | unsigned max_after_base: 1; /* maximum address target label is | |
85 | after BASE. */ | |
33f7f353 JR |
86 | /* Set by the actual branch shortening process - ONLY WHEN OPTIMIZING - : */ |
87 | unsigned offset_unsigned: 1; /* offsets have to be treated as unsigned. */ | |
88 | unsigned : 2; | |
89 | unsigned scale : 8; | |
90 | } addr_diff_vec_flags; | |
91 | ||
173b24b9 RK |
92 | /* Structure used to describe the attributes of a MEM. These are hashed |
93 | so MEMs that the same attributes share a data structure. This means | |
94 | they cannot be modified in place. If any element is nonzero, it means | |
95 | the value of the corresponding attribute is unknown. */ | |
184166b5 R |
96 | /* ALIGN and SIZE are the alignment and size of the MEM itself, |
97 | while EXPR can describe a larger underlying object, which might have a | |
98 | stricter alignment; OFFSET is the offset of the MEM within that object. */ | |
e2500fed | 99 | typedef struct mem_attrs GTY(()) |
173b24b9 | 100 | { |
eebedaa5 | 101 | HOST_WIDE_INT alias; /* Memory alias set. */ |
998d7deb | 102 | tree expr; /* expr corresponding to MEM. */ |
eebedaa5 | 103 | rtx offset; /* Offset from start of DECL, as CONST_INT. */ |
173b24b9 | 104 | rtx size; /* Size in bytes, as a CONST_INT. */ |
d022d93e | 105 | unsigned int align; /* Alignment of MEM in bits. */ |
173b24b9 RK |
106 | } mem_attrs; |
107 | ||
a560d4d4 JH |
108 | /* Structure used to describe the attributes of a REG in similar way as |
109 | mem_attrs does for MEM above. */ | |
110 | ||
111 | typedef struct reg_attrs GTY(()) | |
112 | { | |
113 | tree decl; /* decl corresponding to REG. */ | |
114 | HOST_WIDE_INT offset; /* Offset from start of DECL. */ | |
115 | } reg_attrs; | |
116 | ||
6f29feb1 JW |
117 | /* Common union for an element of an rtx. */ |
118 | ||
36a5eadd | 119 | union rtunion_def |
6f29feb1 JW |
120 | { |
121 | int rtint; | |
770ae6cc | 122 | unsigned int rtuint; |
3cce094d | 123 | const char *rtstr; |
2f78c311 ZW |
124 | rtx rtx; |
125 | rtvec rtvec; | |
6f29feb1 | 126 | enum machine_mode rttype; |
33f7f353 | 127 | addr_diff_vec_flags rt_addr_diff_vec_flags; |
eab5c70a | 128 | struct cselib_val_struct *rt_cselib; |
0dfa1860 | 129 | struct bitmap_head_def *rtbit; |
2f78c311 | 130 | tree rttree; |
e881bb1b | 131 | struct basic_block_def *bb; |
173b24b9 | 132 | mem_attrs *rtmem; |
a560d4d4 | 133 | reg_attrs *rtreg; |
36a5eadd GK |
134 | }; |
135 | typedef union rtunion_def rtunion; | |
6f29feb1 JW |
136 | |
137 | /* RTL expression ("rtx"). */ | |
138 | ||
3d7aafde | 139 | struct rtx_def GTY((chain_next ("RTX_NEXT (&%h)"), |
36a5eadd | 140 | chain_prev ("RTX_PREV (&%h)"))) |
6f29feb1 | 141 | { |
6f29feb1 | 142 | /* The kind of expression this is. */ |
c149cc37 | 143 | ENUM_BITFIELD(rtx_code) code: 16; |
18def38f | 144 | |
6f29feb1 | 145 | /* The kind of value the expression has. */ |
c149cc37 RL |
146 | ENUM_BITFIELD(machine_mode) mode : 8; |
147 | ||
5a63e069 JJ |
148 | /* 1 in a MEM if we should keep the alias set for this mem unchanged |
149 | when we access a component. | |
150 | 1 in a CALL_INSN if it is a sibling call. | |
0dc36574 ZW |
151 | 1 in a SET that is for a return. |
152 | In a CODE_LABEL, part of the two-bit alternate entry field. */ | |
6f29feb1 | 153 | unsigned int jump : 1; |
4da2eb6b RH |
154 | /* In a CODE_LABEL, part of the two-bit alternate entry field. |
155 | 1 in a MEM if it cannot trap. */ | |
6f29feb1 | 156 | unsigned int call : 1; |
5a63e069 JJ |
157 | /* 1 in a REG, MEM, or CONCAT if the value is set at most once, anywhere. |
158 | 1 in a SUBREG if it references an unsigned object whose mode has been | |
159 | from a promoted to a wider mode. | |
6f29feb1 JW |
160 | 1 in a SYMBOL_REF if it addresses something in the per-function |
161 | constants pool. | |
5a63e069 | 162 | 1 in a CALL_INSN, NOTE, or EXPR_LIST for a const or pure call. |
7440af14 | 163 | 1 in a JUMP_INSN, CALL_INSN, or INSN of an annulling branch. */ |
6f29feb1 | 164 | unsigned int unchanging : 1; |
5a63e069 JJ |
165 | /* 1 in a MEM or ASM_OPERANDS expression if the memory reference is volatile. |
166 | 1 in an INSN, CALL_INSN, JUMP_INSN, CODE_LABEL, BARRIER, or NOTE | |
167 | if it has been deleted. | |
168 | 1 in a REG expression if corresponds to a variable declared by the user, | |
6f29feb1 | 169 | 0 for an internally generated temporary. |
5a63e069 JJ |
170 | 1 in a SUBREG with a negative value. |
171 | 1 in a LABEL_REF or in a REG_LABEL note for a non-local label. | |
172 | In a SYMBOL_REF, this flag is used for machine-specific purposes. */ | |
6f29feb1 | 173 | unsigned int volatil : 1; |
8358a974 | 174 | /* 1 in a MEM referring to a field of an aggregate. |
6f29feb1 JW |
175 | 0 if the MEM was a variable or the result of a * operator in C; |
176 | 1 if it was the result of a . or -> operator (on a struct) in C. | |
177 | 1 in a REG if the register is used only in exit code a loop. | |
f590cca1 | 178 | 1 in a SUBREG expression if was generated from a variable with a |
07be3989 | 179 | promoted mode. |
6f29feb1 JW |
180 | 1 in a CODE_LABEL if the label is used for nonlocal gotos |
181 | and must not be deleted even if its count is zero. | |
182 | 1 in a LABEL_REF if this is a reference to a label outside the | |
183 | current loop. | |
be202ec2 FS |
184 | 1 in an INSN, JUMP_INSN or CALL_INSN if this insn must be scheduled |
185 | together with the preceding insn. Valid only within sched. | |
6f29feb1 JW |
186 | 1 in an INSN, JUMP_INSN, or CALL_INSN if insn is in a delay slot and |
187 | from the target of a branch. Valid from reorg until end of compilation; | |
b53978a3 | 188 | cleared before used. |
ecd4a73b JR |
189 | 1 in an INSN, JUMP_INSN or CALL_INSN or related rtx if this insn is |
190 | dead code. Valid only during dead-code elimination phase; cleared | |
191 | before use. */ | |
6f29feb1 | 192 | unsigned int in_struct : 1; |
5a63e069 JJ |
193 | /* At the end of RTL generation, 1 if this rtx is used. This is used for |
194 | copying shared structure. See `unshare_all_rtl'. | |
f590cca1 | 195 | In a REG, this is not needed for that purpose, and used instead |
6f29feb1 | 196 | in `leaf_renumber_regs_insn'. |
5a63e069 | 197 | 1 in a SYMBOL_REF, means that emit_library_call |
6f29feb1 JW |
198 | has used it as the function. */ |
199 | unsigned int used : 1; | |
200 | /* Nonzero if this rtx came from procedure integration. | |
084a1106 | 201 | 1 in a REG or PARALLEL means this rtx refers to the return value |
ff0b6b99 FS |
202 | of the current function. |
203 | 1 in a SYMBOL_REF if the symbol is weak. */ | |
6f29feb1 | 204 | unsigned integrated : 1; |
b664de3a | 205 | /* 1 in an INSN or a SET if this rtx is related to the call frame, |
c6df88cb | 206 | either changing how we compute the frame address or saving and |
f590cca1 | 207 | restoring registers in the prologue and epilogue. |
c6df88cb | 208 | 1 in a MEM if the MEM refers to a scalar, rather than a member of |
bd7cf17e | 209 | an aggregate. |
3502dc9c | 210 | 1 in a REG if the register is a pointer. |
bd7cf17e JJ |
211 | 1 in a SYMBOL_REF if it addresses something in the per-function |
212 | constant string pool. */ | |
469ac993 | 213 | unsigned frame_related : 1; |
0a25f1f5 | 214 | |
6f29feb1 JW |
215 | /* The first element of the operands of this rtx. |
216 | The number of operands and their types are controlled | |
217 | by the `code' field, according to rtl.def. */ | |
e1de1560 RS |
218 | union u { |
219 | rtunion fld[1]; | |
220 | HOST_WIDE_INT hwint[1]; | |
221 | } GTY ((special ("rtx_def"), desc ("GET_CODE (&%0)"))) u; | |
2f78c311 | 222 | }; |
6f29feb1 | 223 | |
e1de1560 RS |
224 | /* The size in bytes of an rtx header (code, mode and flags). */ |
225 | #define RTX_HDR_SIZE offsetof (struct rtx_def, u) | |
226 | ||
227 | /* The size in bytes of an rtx with code CODE. */ | |
228 | #define RTX_SIZE(CODE) rtx_size[CODE] | |
229 | ||
6f29feb1 JW |
230 | #define NULL_RTX (rtx) 0 |
231 | ||
36a5eadd GK |
232 | /* The "next" and "previous" RTX, relative to this one. */ |
233 | ||
234 | #define RTX_NEXT(X) (rtx_next[GET_CODE (X)] == 0 ? NULL \ | |
235 | : *(rtx *)(((char *)X) + rtx_next[GET_CODE (X)])) | |
236 | ||
237 | /* FIXME: the "NEXT_INSN (PREV_INSN (X)) == X" condition shouldn't be needed. | |
238 | */ | |
239 | #define RTX_PREV(X) ((GET_CODE (X) == INSN \ | |
240 | || GET_CODE (X) == CALL_INSN \ | |
241 | || GET_CODE (X) == JUMP_INSN \ | |
242 | || GET_CODE (X) == NOTE \ | |
243 | || GET_CODE (X) == BARRIER \ | |
244 | || GET_CODE (X) == CODE_LABEL) \ | |
245 | && PREV_INSN (X) != NULL \ | |
246 | && NEXT_INSN (PREV_INSN (X)) == X \ | |
247 | ? PREV_INSN (X) : NULL) | |
248 | ||
6f29feb1 JW |
249 | /* Define macros to access the `code' field of the rtx. */ |
250 | ||
dbbbbf3b | 251 | #define GET_CODE(RTX) ((enum rtx_code) (RTX)->code) |
7e7c843f | 252 | #define PUT_CODE(RTX, CODE) ((RTX)->code = (CODE)) |
6f29feb1 | 253 | |
dbbbbf3b | 254 | #define GET_MODE(RTX) ((enum machine_mode) (RTX)->mode) |
7e7c843f | 255 | #define PUT_MODE(RTX, MODE) ((RTX)->mode = (MODE)) |
6f29feb1 | 256 | |
6f29feb1 JW |
257 | /* RTL vector. These appear inside RTX's when there is a need |
258 | for a variable number of things. The principle use is inside | |
259 | PARALLEL expressions. */ | |
260 | ||
e2500fed | 261 | struct rtvec_def GTY(()) { |
e9a25f70 | 262 | int num_elem; /* number of elements */ |
e2500fed | 263 | rtx GTY ((length ("%h.num_elem"))) elem[1]; |
2f78c311 | 264 | }; |
6f29feb1 JW |
265 | |
266 | #define NULL_RTVEC (rtvec) 0 | |
267 | ||
268 | #define GET_NUM_ELEM(RTVEC) ((RTVEC)->num_elem) | |
e9a25f70 | 269 | #define PUT_NUM_ELEM(RTVEC, NUM) ((RTVEC)->num_elem = (NUM)) |
6f29feb1 | 270 | |
b53978a3 | 271 | /* Predicate yielding nonzero iff X is an rtl for a register. */ |
6f29feb1 JW |
272 | #define REG_P(X) (GET_CODE (X) == REG) |
273 | ||
b53978a3 JO |
274 | /* Predicate yielding nonzero iff X is a label insn. */ |
275 | #define LABEL_P(X) (GET_CODE (X) == CODE_LABEL) | |
276 | ||
277 | /* Predicate yielding nonzero iff X is a jump insn. */ | |
278 | #define JUMP_P(X) (GET_CODE (X) == JUMP_INSN) | |
279 | ||
280 | /* Predicate yielding nonzero iff X is a note insn. */ | |
281 | #define NOTE_P(X) (GET_CODE (X) == NOTE) | |
282 | ||
283 | /* Predicate yielding nonzero iff X is a barrier insn. */ | |
284 | #define BARRIER_P(X) (GET_CODE (X) == BARRIER) | |
285 | ||
286 | /* Predicate yielding nonzero iff X is a data for a jump table. */ | |
287 | #define JUMP_TABLE_DATA_P(INSN) \ | |
288 | (JUMP_P (INSN) && (GET_CODE (PATTERN (INSN)) == ADDR_VEC || \ | |
289 | GET_CODE (PATTERN (INSN)) == ADDR_DIFF_VEC)) | |
290 | ||
6f29feb1 JW |
291 | /* 1 if X is a constant value that is an integer. */ |
292 | ||
293 | #define CONSTANT_P(X) \ | |
294 | (GET_CODE (X) == LABEL_REF || GET_CODE (X) == SYMBOL_REF \ | |
295 | || GET_CODE (X) == CONST_INT || GET_CODE (X) == CONST_DOUBLE \ | |
ee5332b8 | 296 | || GET_CODE (X) == CONST || GET_CODE (X) == HIGH \ |
69ef87e2 | 297 | || GET_CODE (X) == CONST_VECTOR \ |
ee5332b8 | 298 | || GET_CODE (X) == CONSTANT_P_RTX) |
6f29feb1 JW |
299 | |
300 | /* General accessor macros for accessing the fields of an rtx. */ | |
301 | ||
f4524c9e | 302 | #if defined ENABLE_RTL_CHECKING && (GCC_VERSION >= 2007) |
ef178af3 ZW |
303 | /* The bit with a star outside the statement expr and an & inside is |
304 | so that N can be evaluated only once. */ | |
8784fdcd | 305 | #define RTL_CHECK1(RTX, N, C1) __extension__ \ |
d544bc39 KG |
306 | (*({ rtx const _rtx = (RTX); const int _n = (N); \ |
307 | const enum rtx_code _code = GET_CODE (_rtx); \ | |
ef178af3 | 308 | if (_n < 0 || _n >= GET_RTX_LENGTH (_code)) \ |
f52eda29 GS |
309 | rtl_check_failed_bounds (_rtx, _n, __FILE__, __LINE__, \ |
310 | __FUNCTION__); \ | |
ef178af3 | 311 | if (GET_RTX_FORMAT(_code)[_n] != C1) \ |
f52eda29 GS |
312 | rtl_check_failed_type1 (_rtx, _n, C1, __FILE__, __LINE__, \ |
313 | __FUNCTION__); \ | |
e1de1560 | 314 | &_rtx->u.fld[_n]; })) |
ef178af3 | 315 | |
8784fdcd | 316 | #define RTL_CHECK2(RTX, N, C1, C2) __extension__ \ |
d544bc39 KG |
317 | (*({ rtx const _rtx = (RTX); const int _n = (N); \ |
318 | const enum rtx_code _code = GET_CODE (_rtx); \ | |
ef178af3 | 319 | if (_n < 0 || _n >= GET_RTX_LENGTH (_code)) \ |
f52eda29 GS |
320 | rtl_check_failed_bounds (_rtx, _n, __FILE__, __LINE__, \ |
321 | __FUNCTION__); \ | |
ef178af3 ZW |
322 | if (GET_RTX_FORMAT(_code)[_n] != C1 \ |
323 | && GET_RTX_FORMAT(_code)[_n] != C2) \ | |
324 | rtl_check_failed_type2 (_rtx, _n, C1, C2, __FILE__, __LINE__, \ | |
fbfc1192 | 325 | __FUNCTION__); \ |
e1de1560 | 326 | &_rtx->u.fld[_n]; })) |
ef178af3 | 327 | |
8784fdcd | 328 | #define RTL_CHECKC1(RTX, N, C) __extension__ \ |
d544bc39 | 329 | (*({ rtx const _rtx = (RTX); const int _n = (N); \ |
f52eda29 GS |
330 | if (GET_CODE (_rtx) != (C)) \ |
331 | rtl_check_failed_code1 (_rtx, (C), __FILE__, __LINE__, \ | |
332 | __FUNCTION__); \ | |
e1de1560 | 333 | &_rtx->u.fld[_n]; })) |
83ab3839 | 334 | |
8784fdcd | 335 | #define RTL_CHECKC2(RTX, N, C1, C2) __extension__ \ |
d544bc39 KG |
336 | (*({ rtx const _rtx = (RTX); const int _n = (N); \ |
337 | const enum rtx_code _code = GET_CODE (_rtx); \ | |
f52eda29 GS |
338 | if (_code != (C1) && _code != (C2)) \ |
339 | rtl_check_failed_code2 (_rtx, (C1), (C2), __FILE__, __LINE__, \ | |
340 | __FUNCTION__); \ | |
e1de1560 | 341 | &_rtx->u.fld[_n]; })) |
83ab3839 | 342 | |
8784fdcd | 343 | #define RTVEC_ELT(RTVEC, I) __extension__ \ |
d544bc39 | 344 | (*({ rtvec const _rtvec = (RTVEC); const int _i = (I); \ |
ef178af3 ZW |
345 | if (_i < 0 || _i >= GET_NUM_ELEM (_rtvec)) \ |
346 | rtvec_check_failed_bounds (_rtvec, _i, __FILE__, __LINE__, \ | |
fbfc1192 | 347 | __FUNCTION__); \ |
ef178af3 ZW |
348 | &_rtvec->elem[_i]; })) |
349 | ||
e1de1560 RS |
350 | #define XWINT(RTX, N) __extension__ \ |
351 | (*({ rtx const _rtx = (RTX); const int _n = (N); \ | |
352 | const enum rtx_code _code = GET_CODE (_rtx); \ | |
353 | if (_n < 0 || _n >= GET_RTX_LENGTH (_code)) \ | |
354 | rtl_check_failed_bounds (_rtx, _n, __FILE__, __LINE__, \ | |
355 | __FUNCTION__); \ | |
356 | if (GET_RTX_FORMAT(_code)[_n] != 'w') \ | |
357 | rtl_check_failed_type1 (_rtx, _n, 'w', __FILE__, __LINE__, \ | |
358 | __FUNCTION__); \ | |
359 | &_rtx->u.hwint[_n]; })) | |
360 | ||
361 | #define XCWINT(RTX, N, C) __extension__ \ | |
362 | (*({ rtx const _rtx = (RTX); \ | |
363 | if (GET_CODE (_rtx) != (C)) \ | |
364 | rtl_check_failed_code1 (_rtx, (C), __FILE__, __LINE__, \ | |
365 | __FUNCTION__); \ | |
366 | &_rtx->u.hwint[N]; })) | |
367 | ||
0c20a65f AJ |
368 | extern void rtl_check_failed_bounds (rtx, int, const char *, int, |
369 | const char *) | |
ef178af3 | 370 | ATTRIBUTE_NORETURN; |
0c20a65f AJ |
371 | extern void rtl_check_failed_type1 (rtx, int, int, const char *, int, |
372 | const char *) | |
ef178af3 | 373 | ATTRIBUTE_NORETURN; |
0c20a65f AJ |
374 | extern void rtl_check_failed_type2 (rtx, int, int, int, const char *, |
375 | int, const char *) | |
ef178af3 | 376 | ATTRIBUTE_NORETURN; |
0c20a65f AJ |
377 | extern void rtl_check_failed_code1 (rtx, enum rtx_code, const char *, |
378 | int, const char *) | |
83ab3839 | 379 | ATTRIBUTE_NORETURN; |
0c20a65f AJ |
380 | extern void rtl_check_failed_code2 (rtx, enum rtx_code, enum rtx_code, |
381 | const char *, int, const char *) | |
83ab3839 | 382 | ATTRIBUTE_NORETURN; |
0c20a65f AJ |
383 | extern void rtvec_check_failed_bounds (rtvec, int, const char *, int, |
384 | const char *) | |
ef178af3 ZW |
385 | ATTRIBUTE_NORETURN; |
386 | ||
f4524c9e | 387 | #else /* not ENABLE_RTL_CHECKING */ |
ef178af3 | 388 | |
e1de1560 RS |
389 | #define RTL_CHECK1(RTX, N, C1) ((RTX)->u.fld[N]) |
390 | #define RTL_CHECK2(RTX, N, C1, C2) ((RTX)->u.fld[N]) | |
391 | #define RTL_CHECKC1(RTX, N, C) ((RTX)->u.fld[N]) | |
392 | #define RTL_CHECKC2(RTX, N, C1, C2) ((RTX)->u.fld[N]) | |
83ab3839 | 393 | #define RTVEC_ELT(RTVEC, I) ((RTVEC)->elem[I]) |
e1de1560 RS |
394 | #define XWINT(RTX, N) ((RTX)->u.hwint[N]) |
395 | #define XCWINT(RTX, N, C) ((RTX)->u.hwint[N]) | |
ef178af3 ZW |
396 | |
397 | #endif | |
398 | ||
5a63e069 JJ |
399 | /* General accessor macros for accessing the flags of an rtx. */ |
400 | ||
401 | /* Access an individual rtx flag, with no checking of any kind. */ | |
402 | #define RTX_FLAG(RTX, FLAG) ((RTX)->FLAG) | |
403 | ||
65212b66 | 404 | #if defined ENABLE_RTL_FLAG_CHECKING && (GCC_VERSION >= 2007) |
2d4cc6a7 | 405 | #define RTL_FLAG_CHECK1(NAME, RTX, C1) __extension__ \ |
5a63e069 JJ |
406 | ({ rtx const _rtx = (RTX); \ |
407 | if (GET_CODE(_rtx) != C1) \ | |
2d4cc6a7 | 408 | rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \ |
3d7aafde | 409 | __FUNCTION__); \ |
5a63e069 JJ |
410 | _rtx; }) |
411 | ||
2d4cc6a7 | 412 | #define RTL_FLAG_CHECK2(NAME, RTX, C1, C2) __extension__ \ |
5a63e069 JJ |
413 | ({ rtx const _rtx = (RTX); \ |
414 | if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2) \ | |
2d4cc6a7 | 415 | rtl_check_failed_flag (NAME,_rtx, __FILE__, __LINE__, \ |
3d7aafde | 416 | __FUNCTION__); \ |
5a63e069 JJ |
417 | _rtx; }) |
418 | ||
2d4cc6a7 | 419 | #define RTL_FLAG_CHECK3(NAME, RTX, C1, C2, C3) __extension__ \ |
5a63e069 | 420 | ({ rtx const _rtx = (RTX); \ |
3d7aafde | 421 | if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \ |
5a63e069 | 422 | && GET_CODE(_rtx) != C3) \ |
2d4cc6a7 | 423 | rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \ |
3d7aafde | 424 | __FUNCTION__); \ |
5a63e069 JJ |
425 | _rtx; }) |
426 | ||
2d4cc6a7 | 427 | #define RTL_FLAG_CHECK4(NAME, RTX, C1, C2, C3, C4) __extension__ \ |
5a63e069 | 428 | ({ rtx const _rtx = (RTX); \ |
3d7aafde | 429 | if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \ |
5a63e069 | 430 | && GET_CODE(_rtx) != C3 && GET_CODE(_rtx) != C4) \ |
2d4cc6a7 | 431 | rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \ |
3d7aafde | 432 | __FUNCTION__); \ |
5a63e069 JJ |
433 | _rtx; }) |
434 | ||
2d4cc6a7 | 435 | #define RTL_FLAG_CHECK5(NAME, RTX, C1, C2, C3, C4, C5) __extension__ \ |
5a63e069 | 436 | ({ rtx const _rtx = (RTX); \ |
3d7aafde | 437 | if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \ |
5a63e069 JJ |
438 | && GET_CODE(_rtx) != C3 && GET_CODE(_rtx) != C4 \ |
439 | && GET_CODE(_rtx) != C5) \ | |
2d4cc6a7 | 440 | rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \ |
3d7aafde | 441 | __FUNCTION__); \ |
5a63e069 JJ |
442 | _rtx; }) |
443 | ||
2d4cc6a7 JJ |
444 | #define RTL_FLAG_CHECK6(NAME, RTX, C1, C2, C3, C4, C5, C6) \ |
445 | __extension__ \ | |
5a63e069 | 446 | ({ rtx const _rtx = (RTX); \ |
3d7aafde | 447 | if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \ |
5a63e069 JJ |
448 | && GET_CODE(_rtx) != C3 && GET_CODE(_rtx) != C4 \ |
449 | && GET_CODE(_rtx) != C5 && GET_CODE(_rtx) != C6) \ | |
2d4cc6a7 | 450 | rtl_check_failed_flag (NAME,_rtx, __FILE__, __LINE__, \ |
3d7aafde | 451 | __FUNCTION__); \ |
5a63e069 JJ |
452 | _rtx; }) |
453 | ||
2d4cc6a7 JJ |
454 | #define RTL_FLAG_CHECK7(NAME, RTX, C1, C2, C3, C4, C5, C6, C7) \ |
455 | __extension__ \ | |
5a63e069 | 456 | ({ rtx const _rtx = (RTX); \ |
3d7aafde | 457 | if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \ |
5a63e069 JJ |
458 | && GET_CODE(_rtx) != C3 && GET_CODE(_rtx) != C4 \ |
459 | && GET_CODE(_rtx) != C5 && GET_CODE(_rtx) != C6 \ | |
460 | && GET_CODE(_rtx) != C7) \ | |
2d4cc6a7 | 461 | rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \ |
3d7aafde | 462 | __FUNCTION__); \ |
5a63e069 JJ |
463 | _rtx; }) |
464 | ||
2d4cc6a7 JJ |
465 | #define RTL_FLAG_CHECK8(NAME, RTX, C1, C2, C3, C4, C5, C6, C7, C8) \ |
466 | __extension__ \ | |
5a63e069 | 467 | ({ rtx const _rtx = (RTX); \ |
3d7aafde | 468 | if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \ |
5a63e069 JJ |
469 | && GET_CODE(_rtx) != C3 && GET_CODE(_rtx) != C4 \ |
470 | && GET_CODE(_rtx) != C5 && GET_CODE(_rtx) != C6 \ | |
471 | && GET_CODE(_rtx) != C7 && GET_CODE(_rtx) != C8) \ | |
2d4cc6a7 | 472 | rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \ |
3d7aafde | 473 | __FUNCTION__); \ |
5a63e069 JJ |
474 | _rtx; }) |
475 | ||
0c20a65f AJ |
476 | extern void rtl_check_failed_flag (const char *, rtx, const char *, |
477 | int, const char *) | |
5a63e069 JJ |
478 | ATTRIBUTE_NORETURN |
479 | ; | |
480 | ||
481 | #else /* not ENABLE_RTL_FLAG_CHECKING */ | |
482 | ||
2d4cc6a7 JJ |
483 | #define RTL_FLAG_CHECK1(NAME, RTX, C1) (RTX) |
484 | #define RTL_FLAG_CHECK2(NAME, RTX, C1, C2) (RTX) | |
485 | #define RTL_FLAG_CHECK3(NAME, RTX, C1, C2, C3) (RTX) | |
486 | #define RTL_FLAG_CHECK4(NAME, RTX, C1, C2, C3, C4) (RTX) | |
3d7aafde | 487 | #define RTL_FLAG_CHECK5(NAME, RTX, C1, C2, C3, C4, C5) (RTX) |
2d4cc6a7 JJ |
488 | #define RTL_FLAG_CHECK6(NAME, RTX, C1, C2, C3, C4, C5, C6) (RTX) |
489 | #define RTL_FLAG_CHECK7(NAME, RTX, C1, C2, C3, C4, C5, C6, C7) (RTX) | |
490 | #define RTL_FLAG_CHECK8(NAME, RTX, C1, C2, C3, C4, C5, C6, C7, C8) (RTX) | |
5a63e069 JJ |
491 | #endif |
492 | ||
493 | #define CLEAR_RTX_FLAGS(RTX) \ | |
494 | do { \ | |
495 | rtx const _rtx = (RTX); \ | |
496 | _rtx->call = 0; \ | |
497 | _rtx->frame_related = 0; \ | |
498 | _rtx->in_struct = 0; \ | |
499 | _rtx->integrated = 0; \ | |
500 | _rtx->jump = 0; \ | |
501 | _rtx->unchanging = 0; \ | |
502 | _rtx->used = 0; \ | |
503 | _rtx->volatil = 0; \ | |
504 | } while (0) | |
505 | ||
f52eda29 GS |
506 | #define XINT(RTX, N) (RTL_CHECK2 (RTX, N, 'i', 'n').rtint) |
507 | #define XSTR(RTX, N) (RTL_CHECK2 (RTX, N, 's', 'S').rtstr) | |
508 | #define XEXP(RTX, N) (RTL_CHECK2 (RTX, N, 'e', 'u').rtx) | |
509 | #define XVEC(RTX, N) (RTL_CHECK2 (RTX, N, 'E', 'V').rtvec) | |
510 | #define XMODE(RTX, N) (RTL_CHECK1 (RTX, N, 'M').rttype) | |
511 | #define XBITMAP(RTX, N) (RTL_CHECK1 (RTX, N, 'b').rtbit) | |
512 | #define XTREE(RTX, N) (RTL_CHECK1 (RTX, N, 't').rttree) | |
513 | #define XBBDEF(RTX, N) (RTL_CHECK1 (RTX, N, 'B').bb) | |
514 | #define XTMPL(RTX, N) (RTL_CHECK1 (RTX, N, 'T').rtstr) | |
ef178af3 ZW |
515 | |
516 | #define XVECEXP(RTX, N, M) RTVEC_ELT (XVEC (RTX, N), M) | |
517 | #define XVECLEN(RTX, N) GET_NUM_ELEM (XVEC (RTX, N)) | |
518 | ||
e1de1560 | 519 | /* These are like XINT, etc. except that they expect a '0' field instead |
ef178af3 ZW |
520 | of the normal type code. */ |
521 | ||
f52eda29 GS |
522 | #define X0INT(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtint) |
523 | #define X0UINT(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtuint) | |
524 | #define X0STR(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtstr) | |
525 | #define X0EXP(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtx) | |
526 | #define X0VEC(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtvec) | |
527 | #define X0MODE(RTX, N) (RTL_CHECK1 (RTX, N, '0').rttype) | |
528 | #define X0BITMAP(RTX, N) (RTL_CHECK1 (RTX, N, '0').rtbit) | |
529 | #define X0TREE(RTX, N) (RTL_CHECK1 (RTX, N, '0').rttree) | |
530 | #define X0BBDEF(RTX, N) (RTL_CHECK1 (RTX, N, '0').bb) | |
531 | #define X0ADVFLAGS(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_addr_diff_vec_flags) | |
532 | #define X0CSELIB(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_cselib) | |
a560d4d4 JH |
533 | #define X0MEMATTR(RTX, N) (RTL_CHECKC1 (RTX, N, MEM).rtmem) |
534 | #define X0REGATTR(RTX, N) (RTL_CHECKC1 (RTX, N, REG).rtreg) | |
f52eda29 | 535 | |
e1de1560 RS |
536 | /* Access a '0' field with any type. */ |
537 | #define X0ANY(RTX, N) RTL_CHECK1 (RTX, N, '0') | |
538 | ||
f52eda29 GS |
539 | #define XCINT(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtint) |
540 | #define XCUINT(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtuint) | |
541 | #define XCSTR(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtstr) | |
542 | #define XCEXP(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtx) | |
543 | #define XCVEC(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtvec) | |
544 | #define XCMODE(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rttype) | |
545 | #define XCBITMAP(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rtbit) | |
546 | #define XCTREE(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rttree) | |
547 | #define XCBBDEF(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).bb) | |
548 | #define XCADVFLAGS(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_addr_diff_vec_flags) | |
549 | #define XCCSELIB(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_cselib) | |
83ab3839 RH |
550 | |
551 | #define XCVECEXP(RTX, N, M, C) RTVEC_ELT (XCVEC (RTX, N, C), M) | |
552 | #define XCVECLEN(RTX, N, C) GET_NUM_ELEM (XCVEC (RTX, N, C)) | |
553 | ||
f52eda29 | 554 | #define XC2EXP(RTX, N, C1, C2) (RTL_CHECKC2 (RTX, N, C1, C2).rtx) |
6f29feb1 JW |
555 | \f |
556 | /* ACCESS MACROS for particular fields of insns. */ | |
557 | ||
4e872036 AS |
558 | /* Determines whether X is an insn. */ |
559 | #define INSN_P(X) (GET_RTX_CLASS (GET_CODE(X)) == 'i') | |
560 | ||
6f29feb1 JW |
561 | /* Holds a unique number for each insn. |
562 | These are not necessarily sequentially increasing. */ | |
f52eda29 | 563 | #define INSN_UID(INSN) XINT (INSN, 0) |
6f29feb1 JW |
564 | |
565 | /* Chain insns together in sequence. */ | |
f52eda29 GS |
566 | #define PREV_INSN(INSN) XEXP (INSN, 1) |
567 | #define NEXT_INSN(INSN) XEXP (INSN, 2) | |
6f29feb1 | 568 | |
ba4f7968 | 569 | #define BLOCK_FOR_INSN(INSN) XBBDEF (INSN, 3) |
0435312e | 570 | #define INSN_LOCATOR(INSN) XINT (INSN, 4) |
6f29feb1 | 571 | /* The body of an insn. */ |
ba4f7968 | 572 | #define PATTERN(INSN) XEXP (INSN, 5) |
6f29feb1 JW |
573 | |
574 | /* Code number of instruction, from when it was recognized. | |
575 | -1 means this instruction has not been recognized yet. */ | |
ba4f7968 | 576 | #define INSN_CODE(INSN) XINT (INSN, 6) |
6f29feb1 JW |
577 | |
578 | /* Set up in flow.c; empty before then. | |
579 | Holds a chain of INSN_LIST rtx's whose first operands point at | |
580 | previous insns with direct data-flow connections to this one. | |
581 | That means that those insns set variables whose next use is in this insn. | |
582 | They are always in the same basic block as this insn. */ | |
ba4f7968 | 583 | #define LOG_LINKS(INSN) XEXP(INSN, 7) |
6f29feb1 | 584 | |
2d4cc6a7 JJ |
585 | #define RTX_INTEGRATED_P(RTX) \ |
586 | (RTL_FLAG_CHECK8("RTX_INTEGRATED_P", (RTX), INSN, CALL_INSN, \ | |
587 | JUMP_INSN, INSN_LIST, BARRIER, CODE_LABEL, CONST, \ | |
588 | NOTE)->integrated) | |
589 | #define RTX_UNCHANGING_P(RTX) \ | |
590 | (RTL_FLAG_CHECK3("RTX_UNCHANGING_P", (RTX), REG, MEM, CONCAT)->unchanging) | |
591 | #define RTX_FRAME_RELATED_P(RTX) \ | |
592 | (RTL_FLAG_CHECK5("RTX_FRAME_RELATED_P", (RTX), INSN, CALL_INSN, \ | |
593 | JUMP_INSN, BARRIER, SET)->frame_related) | |
594 | ||
595 | /* 1 if RTX is an insn that has been deleted. */ | |
596 | #define INSN_DELETED_P(RTX) \ | |
597 | (RTL_FLAG_CHECK6("INSN_DELETED_P", (RTX), INSN, CALL_INSN, JUMP_INSN, \ | |
598 | CODE_LABEL, BARRIER, NOTE)->volatil) | |
599 | ||
600 | /* 1 if RTX is a call to a const or pure function. */ | |
601 | #define CONST_OR_PURE_CALL_P(RTX) \ | |
602 | (RTL_FLAG_CHECK3("CONST_OR_PURE_CALL_P", (RTX), CALL_INSN, NOTE, \ | |
603 | EXPR_LIST)->unchanging) | |
604 | ||
605 | /* 1 if RTX is a call_insn for a sibling call. */ | |
606 | #define SIBLING_CALL_P(RTX) \ | |
607 | (RTL_FLAG_CHECK1("SIBLING_CALL_P", (RTX), CALL_INSN)->jump) | |
608 | ||
7440af14 | 609 | /* 1 if RTX is a jump_insn, call_insn, or insn that is an annulling branch. */ |
2d4cc6a7 | 610 | #define INSN_ANNULLED_BRANCH_P(RTX) \ |
7440af14 | 611 | (RTL_FLAG_CHECK3("INSN_ANNULLED_BRANCH_P", (RTX), JUMP_INSN, CALL_INSN, INSN)->unchanging) |
2d4cc6a7 JJ |
612 | |
613 | /* 1 if RTX is an insn that is dead code. Valid only for dead-code | |
614 | elimination phase. */ | |
615 | #define INSN_DEAD_CODE_P(RTX) \ | |
ecd4a73b | 616 | (RTL_FLAG_CHECK3("INSN_DEAD_CODE_P", (RTX), INSN, CALL_INSN, JUMP_INSN)->in_struct) |
2d4cc6a7 JJ |
617 | |
618 | /* 1 if RTX is an insn in a delay slot and is from the target of the branch. | |
619 | If the branch insn has INSN_ANNULLED_BRANCH_P set, this insn should only be | |
6f29feb1 JW |
620 | executed if the branch is taken. For annulled branches with this bit |
621 | clear, the insn should be executed only if the branch is not taken. */ | |
2d4cc6a7 | 622 | #define INSN_FROM_TARGET_P(RTX) \ |
cf40ea15 | 623 | (RTL_FLAG_CHECK3("INSN_FROM_TARGET_P", (RTX), INSN, JUMP_INSN, CALL_INSN)->in_struct) |
6f29feb1 | 624 | |
f590cca1 RH |
625 | #define ADDR_DIFF_VEC_FLAGS(RTX) X0ADVFLAGS(RTX, 4) |
626 | ||
627 | #define CSELIB_VAL_PTR(RTX) X0CSELIB(RTX, 0) | |
628 | ||
6f29feb1 | 629 | /* Holds a list of notes on what this insn does to various REGs. |
f590cca1 RH |
630 | It is a chain of EXPR_LIST rtx's, where the second operand is the |
631 | chain pointer and the first operand is the REG being described. | |
6f29feb1 | 632 | The mode field of the EXPR_LIST contains not a real machine mode |
f590cca1 | 633 | but a value from enum reg_note. */ |
6f29feb1 | 634 | |
ba4f7968 | 635 | #define REG_NOTES(INSN) XEXP(INSN, 8) |
6f29feb1 JW |
636 | |
637 | /* Don't forget to change reg_note_name in rtl.c. */ | |
f590cca1 RH |
638 | enum reg_note |
639 | { | |
640 | /* The value in REG dies in this insn (i.e., it is not needed past | |
641 | this insn). If REG is set in this insn, the REG_DEAD note may, | |
642 | but need not, be omitted. */ | |
643 | REG_DEAD = 1, | |
644 | ||
645 | /* The REG is autoincremented or autodecremented. */ | |
646 | REG_INC, | |
647 | ||
648 | /* Describes the insn as a whole; it says that the insn sets a register | |
649 | to a constant value or to be equivalent to a memory address. If the | |
650 | register is spilled to the stack then the constant value should be | |
651 | substituted for it. The contents of the REG_EQUIV is the constant | |
652 | value or memory address, which may be different from the source of | |
653 | the SET although it has the same value. A REG_EQUIV note may also | |
654 | appear on an insn which copies a register parameter to a pseudo-register, | |
655 | if there is a memory address which could be used to hold that | |
656 | pseudo-register throughout the function. */ | |
be1bb652 | 657 | REG_EQUIV, |
f590cca1 RH |
658 | |
659 | /* Like REG_EQUIV except that the destination is only momentarily equal | |
660 | to the specified rtx. Therefore, it cannot be used for substitution; | |
661 | but it can be used for cse. */ | |
662 | REG_EQUAL, | |
663 | ||
f590cca1 RH |
664 | /* This insn copies the return-value of a library call out of the hard reg |
665 | for return values. This note is actually an INSN_LIST and it points to | |
666 | the first insn involved in setting up arguments for the call. flow.c | |
667 | uses this to delete the entire library call when its result is dead. */ | |
668 | REG_RETVAL, | |
669 | ||
670 | /* The inverse of REG_RETVAL: it goes on the first insn of the library call | |
be1bb652 RH |
671 | and points at the one that has the REG_RETVAL. This note is also an |
672 | INSN_LIST. */ | |
f590cca1 RH |
673 | REG_LIBCALL, |
674 | ||
675 | /* The register is always nonnegative during the containing loop. This is | |
676 | used in branches so that decrement and branch instructions terminating | |
677 | on zero can be matched. There must be an insn pattern in the md file | |
678 | named `decrement_and_branch_until_zero' or else this will never be added | |
679 | to any instructions. */ | |
680 | REG_NONNEG, | |
681 | ||
682 | /* There is no conflict *after this insn* between the register in the note | |
683 | and the destination of this insn. */ | |
684 | REG_NO_CONFLICT, | |
685 | ||
686 | /* Identifies a register set in this insn and never used. */ | |
687 | REG_UNUSED, | |
688 | ||
689 | /* REG_CC_SETTER and REG_CC_USER link a pair of insns that set and use CC0, | |
690 | respectively. Normally, these are required to be consecutive insns, but | |
691 | we permit putting a cc0-setting insn in the delay slot of a branch as | |
692 | long as only one copy of the insn exists. In that case, these notes | |
693 | point from one to the other to allow code generation to determine what | |
be1bb652 RH |
694 | any require information and to properly update CC_STATUS. These notes |
695 | are INSN_LISTs. */ | |
f590cca1 RH |
696 | REG_CC_SETTER, REG_CC_USER, |
697 | ||
698 | /* Points to a CODE_LABEL. Used by non-JUMP_INSNs to say that the | |
3d7aafde | 699 | CODE_LABEL contained in the REG_LABEL note is used by the insn. |
be1bb652 | 700 | This note is an INSN_LIST. */ |
f590cca1 RH |
701 | REG_LABEL, |
702 | ||
703 | /* REG_DEP_ANTI and REG_DEP_OUTPUT are used in LOG_LINKS to represent | |
704 | write-after-read and write-after-write dependencies respectively. | |
705 | Data dependencies, which are the only type of LOG_LINK created by | |
706 | flow, are represented by a 0 reg note kind. */ | |
707 | REG_DEP_ANTI, REG_DEP_OUTPUT, | |
708 | ||
4db384c9 JH |
709 | /* REG_BR_PROB is attached to JUMP_INSNs and CALL_INSNs. |
710 | It has an integer value. For jumps, it is the probability that this is a | |
711 | taken branch. For calls, it is the probability that this call won't | |
712 | return. */ | |
f590cca1 RH |
713 | REG_BR_PROB, |
714 | ||
6e885ee3 ZD |
715 | /* REG_VALUE_PROFILE is attached when the profile is read in to an insn |
716 | before that the code to profile the value is inserted. It contains | |
717 | the results of profiling. */ | |
718 | REG_VALUE_PROFILE, | |
719 | ||
f590cca1 RH |
720 | /* Attached to a call insn; indicates that the call is malloc-like and |
721 | that the pointer returned cannot alias anything else. */ | |
722 | REG_NOALIAS, | |
723 | ||
724 | /* Used to optimize rtl generated by dynamic stack allocations for targets | |
725 | where SETJMP_VIA_SAVE_AREA is true. */ | |
726 | REG_SAVE_AREA, | |
727 | ||
4db384c9 JH |
728 | /* REG_BR_PRED is attached to JUMP_INSNs and CALL_INSNSs. It contains |
729 | CONCAT of two integer value. First specifies the branch predictor | |
730 | that added the note, second specifies the predicted hitrate of branch | |
731 | in the same format as REG_BR_PROB note uses. */ | |
f590cca1 RH |
732 | REG_BR_PRED, |
733 | ||
734 | /* Attached to insns that are RTX_FRAME_RELATED_P, but are too complex | |
735 | for DWARF to interpret what they imply. The attached rtx is used | |
736 | instead of intuition. */ | |
737 | REG_FRAME_RELATED_EXPR, | |
738 | ||
739 | /* Indicates that REG holds the exception context for the function. | |
740 | This context is shared by inline functions, so the code to acquire | |
741 | the real exception context is delayed until after inlining. */ | |
742 | REG_EH_CONTEXT, | |
743 | ||
744 | /* Indicates what exception region an INSN belongs in. This is used to | |
745 | indicate what region to which a call may throw. REGION 0 indicates | |
746 | that a call cannot throw at all. REGION -1 indicates that it cannot | |
747 | throw, nor will it execute a non-local goto. */ | |
748 | REG_EH_REGION, | |
749 | ||
f590cca1 | 750 | /* Used by haifa-sched to save NOTE_INSN notes across scheduling. */ |
8cd8f856 GK |
751 | REG_SAVE_NOTE, |
752 | ||
753 | /* Indicates that this insn (which is part of the prologue) computes | |
754 | a value which might not be used later, and if so it's OK to delete | |
3d7aafde | 755 | the insn. Normally, deleting any insn in the prologue is an error. |
8cd8f856 | 756 | At present the parameter is unused and set to (const_int 0). */ |
ca3920ad JW |
757 | REG_MAYBE_DEAD, |
758 | ||
759 | /* Indicates that a call does not return. */ | |
4b01bd16 RH |
760 | REG_NORETURN, |
761 | ||
3d7aafde | 762 | /* Indicates that an indirect jump is a non-local goto instead of a |
4b01bd16 | 763 | computed goto. */ |
570a98eb JH |
764 | REG_NON_LOCAL_GOTO, |
765 | ||
766 | /* This kind of note is generated at each to `setjmp', | |
767 | and similar functions that can return twice. */ | |
9d98f8f9 JH |
768 | REG_SETJMP, |
769 | ||
770 | /* Indicate calls that always returns. */ | |
4a8d0c9c RH |
771 | REG_ALWAYS_RETURN, |
772 | ||
773 | /* Indicate that the memory load references a vtable. The expression | |
774 | is of the form (plus (symbol_ref vtable_sym) (const_int offset)). */ | |
775 | REG_VTABLE_REF | |
f590cca1 RH |
776 | }; |
777 | ||
7ae21caf DE |
778 | /* The base value for branch probability notes. */ |
779 | #define REG_BR_PROB_BASE 10000 | |
6f29feb1 JW |
780 | |
781 | /* Define macros to extract and insert the reg-note kind in an EXPR_LIST. */ | |
782 | #define REG_NOTE_KIND(LINK) ((enum reg_note) GET_MODE (LINK)) | |
f52eda29 GS |
783 | #define PUT_REG_NOTE_KIND(LINK, KIND) \ |
784 | PUT_MODE (LINK, (enum machine_mode) (KIND)) | |
6f29feb1 JW |
785 | |
786 | /* Names for REG_NOTE's in EXPR_LIST insn's. */ | |
787 | ||
1f9a015e | 788 | extern const char * const reg_note_name[]; |
0f41302f | 789 | #define GET_REG_NOTE_NAME(MODE) (reg_note_name[(int) (MODE)]) |
6f29feb1 | 790 | |
e51c6661 RK |
791 | /* This field is only present on CALL_INSNs. It holds a chain of EXPR_LIST of |
792 | USE and CLOBBER expressions. | |
793 | USE expressions list the registers filled with arguments that | |
794 | are passed to the function. | |
795 | CLOBBER expressions document the registers explicitly clobbered | |
796 | by this CALL_INSN. | |
797 | Pseudo registers can not be mentioned in this list. */ | |
ba4f7968 | 798 | #define CALL_INSN_FUNCTION_USAGE(INSN) XEXP(INSN, 9) |
e51c6661 | 799 | |
6f29feb1 JW |
800 | /* The label-number of a code-label. The assembler label |
801 | is made from `L' and the label-number printed in decimal. | |
802 | Label numbers are unique in a compilation. */ | |
ba4f7968 | 803 | #define CODE_LABEL_NUMBER(INSN) XINT (INSN, 6) |
6f29feb1 JW |
804 | |
805 | #define LINE_NUMBER NOTE | |
806 | ||
0dfa1860 MM |
807 | /* In a NOTE that is a line number, this is a string for the file name that the |
808 | line is in. We use the same field to record block numbers temporarily in | |
809 | NOTE_INSN_BLOCK_BEG and NOTE_INSN_BLOCK_END notes. (We avoid lots of casts | |
810 | between ints and pointers if we use a different macro for the block number.) | |
63f4a88e | 811 | */ |
6f29feb1 | 812 | |
fd3acbb3 | 813 | /* Opaque data. */ |
dd107e66 | 814 | #define NOTE_DATA(INSN) RTL_CHECKC1 (INSN, 4, NOTE) |
3d7aafde | 815 | #define NOTE_SOURCE_FILE(INSN) XCSTR (INSN, 4, NOTE) |
ba4f7968 JH |
816 | #define NOTE_BLOCK(INSN) XCTREE (INSN, 4, NOTE) |
817 | #define NOTE_EH_HANDLER(INSN) XCINT (INSN, 4, NOTE) | |
ba4f7968 JH |
818 | #define NOTE_BASIC_BLOCK(INSN) XCBBDEF (INSN, 4, NOTE) |
819 | #define NOTE_EXPECTED_VALUE(INSN) XCEXP (INSN, 4, NOTE) | |
820 | #define NOTE_PREDICTION(INSN) XCINT (INSN, 4, NOTE) | |
dad482e6 | 821 | #define NOTE_PRECONDITIONED(INSN) XCINT (INSN, 4, NOTE) |
0dfa1860 | 822 | |
6f29feb1 JW |
823 | /* In a NOTE that is a line number, this is the line number. |
824 | Other kinds of NOTEs are identified by negative numbers here. */ | |
ba4f7968 | 825 | #define NOTE_LINE_NUMBER(INSN) XCINT (INSN, 5, NOTE) |
6f29feb1 | 826 | |
589ca5cb | 827 | /* Nonzero if INSN is a note marking the beginning of a basic block. */ |
3d7aafde | 828 | #define NOTE_INSN_BASIC_BLOCK_P(INSN) \ |
589ca5cb MM |
829 | (GET_CODE (INSN) == NOTE \ |
830 | && NOTE_LINE_NUMBER (INSN) == NOTE_INSN_BASIC_BLOCK) | |
831 | ||
969d70ca | 832 | /* Algorithm and flags for prediction. */ |
ba4f7968 JH |
833 | #define NOTE_PREDICTION_ALG(INSN) (XCINT(INSN, 4, NOTE)>>8) |
834 | #define NOTE_PREDICTION_FLAGS(INSN) (XCINT(INSN, 4, NOTE)&0xff) | |
969d70ca JH |
835 | #define NOTE_PREDICT(ALG,FLAGS) ((ALG<<8)+(FLAGS)) |
836 | ||
6f29feb1 | 837 | /* Codes that appear in the NOTE_LINE_NUMBER field |
a31efb86 | 838 | for kinds of notes that are not line numbers. |
6f29feb1 | 839 | |
a31efb86 DE |
840 | Notice that we do not try to use zero here for any of |
841 | the special note codes because sometimes the source line | |
842 | actually can be zero! This happens (for example) when we | |
843 | are generating code for the per-translation-unit constructor | |
844 | and destructor routines for some C++ translation unit. | |
845 | ||
846 | If you should change any of the following values, or if you | |
847 | should add a new value here, don't forget to change the | |
848 | note_insn_name array in rtl.c. */ | |
6f29feb1 | 849 | |
d636c18c RH |
850 | enum insn_note |
851 | { | |
852 | /* Keep all of these numbers negative. Adjust as needed. */ | |
853 | NOTE_INSN_BIAS = -100, | |
854 | ||
855 | /* This note is used to get rid of an insn | |
856 | when it isn't safe to patch the insn out of the chain. */ | |
857 | NOTE_INSN_DELETED, | |
858 | ||
859 | /* These are used to mark the beginning and end of a lexical block. | |
860 | See NOTE_BLOCK, identify_blocks and reorder_blocks. */ | |
861 | NOTE_INSN_BLOCK_BEG, | |
862 | NOTE_INSN_BLOCK_END, | |
863 | ||
864 | /* These mark the extremes of a loop. */ | |
865 | NOTE_INSN_LOOP_BEG, | |
866 | NOTE_INSN_LOOP_END, | |
867 | ||
868 | /* Generated at the place in a loop that `continue' jumps to. */ | |
869 | NOTE_INSN_LOOP_CONT, | |
870 | /* Generated at the start of a duplicated exit test. */ | |
871 | NOTE_INSN_LOOP_VTOP, | |
872 | ||
e803a64b RH |
873 | /* Generated at the end of a conditional at the top of the loop. |
874 | This is used to perform a lame form of loop rotation in lieu | |
875 | of actually understanding the loop structure. The note is | |
876 | discarded after rotation is complete. */ | |
877 | NOTE_INSN_LOOP_END_TOP_COND, | |
878 | ||
d636c18c RH |
879 | /* This kind of note is generated at the end of the function body, |
880 | just before the return insn or return label. In an optimizing | |
881 | compilation it is deleted by the first jump optimization, after | |
882 | enabling that optimizer to determine whether control can fall | |
883 | off the end of the function body without a return statement. */ | |
884 | NOTE_INSN_FUNCTION_END, | |
885 | ||
d636c18c RH |
886 | /* This marks the point immediately after the last prologue insn. */ |
887 | NOTE_INSN_PROLOGUE_END, | |
888 | ||
889 | /* This marks the point immediately prior to the first epilogue insn. */ | |
890 | NOTE_INSN_EPILOGUE_BEG, | |
891 | ||
892 | /* Generated in place of user-declared labels when they are deleted. */ | |
893 | NOTE_INSN_DELETED_LABEL, | |
894 | ||
895 | /* This note indicates the start of the real body of the function, | |
896 | i.e. the point just after all of the parms have been moved into | |
897 | their homes, etc. */ | |
898 | NOTE_INSN_FUNCTION_BEG, | |
899 | ||
3d7aafde | 900 | /* These note where exception handling regions begin and end. |
d636c18c RH |
901 | Uses NOTE_EH_HANDLER to identify the region in question. */ |
902 | NOTE_INSN_EH_REGION_BEG, | |
903 | NOTE_INSN_EH_REGION_END, | |
904 | ||
905 | /* Generated whenever a duplicate line number note is output. For example, | |
906 | one is output after the end of an inline function, in order to prevent | |
eebedaa5 | 907 | the line containing the inline call from being counted twice in gcov. */ |
b3b42a4d | 908 | NOTE_INSN_REPEATED_LINE_NUMBER, |
d636c18c | 909 | |
eebedaa5 | 910 | /* Record the struct for the following basic block. Uses NOTE_BASIC_BLOCK. */ |
d636c18c RH |
911 | NOTE_INSN_BASIC_BLOCK, |
912 | ||
994a57cd RH |
913 | /* Record the expected value of a register at a location. Uses |
914 | NOTE_EXPECTED_VALUE; stored as (eq (reg) (const_int)). */ | |
915 | NOTE_INSN_EXPECTED_VALUE, | |
916 | ||
4b7e68e7 | 917 | /* Record a prediction. Uses NOTE_PREDICTION. */ |
969d70ca JH |
918 | NOTE_INSN_PREDICTION, |
919 | ||
d636c18c RH |
920 | NOTE_INSN_MAX |
921 | }; | |
10f07067 | 922 | |
6f29feb1 JW |
923 | /* Names for NOTE insn's other than line numbers. */ |
924 | ||
d636c18c RH |
925 | extern const char * const note_insn_name[NOTE_INSN_MAX - NOTE_INSN_BIAS]; |
926 | #define GET_NOTE_INSN_NAME(NOTE_CODE) \ | |
dbbbbf3b | 927 | (note_insn_name[(NOTE_CODE) - (int) NOTE_INSN_BIAS]) |
6f29feb1 JW |
928 | |
929 | /* The name of a label, in case it corresponds to an explicit label | |
930 | in the input source code. */ | |
ba4f7968 | 931 | #define LABEL_NAME(RTX) XCSTR (RTX, 7, CODE_LABEL) |
6f29feb1 JW |
932 | |
933 | /* In jump.c, each label contains a count of the number | |
934 | of LABEL_REFs that point at it, so unused labels can be deleted. */ | |
ba4f7968 | 935 | #define LABEL_NUSES(RTX) XCINT (RTX, 4, CODE_LABEL) |
6f29feb1 | 936 | |
0dc36574 ZW |
937 | /* Labels carry a two-bit field composed of the ->jump and ->call |
938 | bits. This field indicates whether the label is an alternate | |
939 | entry point, and if so, what kind. */ | |
940 | enum label_kind | |
941 | { | |
942 | LABEL_NORMAL = 0, /* ordinary label */ | |
943 | LABEL_STATIC_ENTRY, /* alternate entry point, not exported */ | |
944 | LABEL_GLOBAL_ENTRY, /* alternate entry point, exported */ | |
945 | LABEL_WEAK_ENTRY /* alternate entry point, exported as weak symbol */ | |
946 | }; | |
947 | ||
948 | #if defined ENABLE_RTL_FLAG_CHECKING && (GCC_VERSION > 2007) | |
949 | ||
950 | /* Retrieve the kind of LABEL. */ | |
951 | #define LABEL_KIND(LABEL) __extension__ \ | |
952 | ({ rtx const _label = (LABEL); \ | |
953 | if (GET_CODE (_label) != CODE_LABEL) \ | |
954 | rtl_check_failed_flag ("LABEL_KIND", _label, __FILE__, __LINE__, \ | |
955 | __FUNCTION__); \ | |
956 | (enum label_kind) ((_label->jump << 1) | _label->call); }) | |
957 | ||
958 | /* Set the kind of LABEL. */ | |
959 | #define SET_LABEL_KIND(LABEL, KIND) do { \ | |
960 | rtx _label = (LABEL); \ | |
961 | unsigned int _kind = (KIND); \ | |
962 | if (GET_CODE (_label) != CODE_LABEL) \ | |
963 | rtl_check_failed_flag ("SET_LABEL_KIND", _label, __FILE__, __LINE__, \ | |
964 | __FUNCTION__); \ | |
965 | _label->jump = ((_kind >> 1) & 1); \ | |
966 | _label->call = (_kind & 1); \ | |
967 | } while (0) | |
968 | ||
969 | #else | |
970 | ||
971 | /* Retrieve the kind of LABEL. */ | |
972 | #define LABEL_KIND(LABEL) \ | |
973 | ((enum label_kind) (((LABEL)->jump << 1) | (LABEL)->call)) | |
974 | ||
975 | /* Set the kind of LABEL. */ | |
976 | #define SET_LABEL_KIND(LABEL, KIND) do { \ | |
977 | rtx _label = (LABEL); \ | |
978 | unsigned int _kind = (KIND); \ | |
979 | _label->jump = ((_kind >> 1) & 1); \ | |
980 | _label->call = (_kind & 1); \ | |
981 | } while (0) | |
982 | ||
983 | #endif /* rtl flag checking */ | |
984 | ||
985 | #define LABEL_ALT_ENTRY_P(LABEL) (LABEL_KIND (LABEL) != LABEL_NORMAL) | |
8cd0faaf | 986 | |
e9a25f70 | 987 | /* The original regno this ADDRESSOF was built for. */ |
f52eda29 | 988 | #define ADDRESSOF_REGNO(RTX) XCUINT (RTX, 1, ADDRESSOF) |
e9a25f70 JL |
989 | |
990 | /* The variable in the register we took the address of. */ | |
f52eda29 | 991 | #define ADDRESSOF_DECL(RTX) XCTREE (RTX, 2, ADDRESSOF) |
e9a25f70 | 992 | |
6f29feb1 JW |
993 | /* In jump.c, each JUMP_INSN can point to a label that it can jump to, |
994 | so that if the JUMP_INSN is deleted, the label's LABEL_NUSES can | |
995 | be decremented and possibly the label can be deleted. */ | |
ba4f7968 | 996 | #define JUMP_LABEL(INSN) XCEXP (INSN, 9, JUMP_INSN) |
6f29feb1 JW |
997 | |
998 | /* Once basic blocks are found in flow.c, | |
999 | each CODE_LABEL starts a chain that goes through | |
1000 | all the LABEL_REFs that jump to that label. | |
be1bb652 | 1001 | The chain eventually winds up at the CODE_LABEL: it is circular. */ |
ba4f7968 | 1002 | #define LABEL_REFS(LABEL) XCEXP (LABEL, 5, CODE_LABEL) |
6f29feb1 JW |
1003 | \f |
1004 | /* This is the field in the LABEL_REF through which the circular chain | |
1005 | of references to a particular label is linked. | |
1006 | This chain is set up in flow.c. */ | |
1007 | ||
f52eda29 | 1008 | #define LABEL_NEXTREF(REF) XCEXP (REF, 1, LABEL_REF) |
6f29feb1 JW |
1009 | |
1010 | /* Once basic blocks are found in flow.c, | |
1011 | Each LABEL_REF points to its containing instruction with this field. */ | |
1012 | ||
f52eda29 | 1013 | #define CONTAINING_INSN(RTX) XCEXP (RTX, 2, LABEL_REF) |
6f29feb1 | 1014 | |
08394eef BS |
1015 | /* For a REG rtx, REGNO extracts the register number. ORIGINAL_REGNO holds |
1016 | the number the register originally had; for a pseudo register turned into | |
1017 | a hard reg this will hold the old pseudo register number. */ | |
6f29feb1 | 1018 | |
f52eda29 GS |
1019 | #define REGNO(RTX) XCUINT (RTX, 0, REG) |
1020 | #define ORIGINAL_REGNO(RTX) X0UINT (RTX, 1) | |
6f29feb1 | 1021 | |
084a1106 JDA |
1022 | /* 1 if RTX is a reg or parallel that is the current function's return |
1023 | value. */ | |
2d4cc6a7 | 1024 | #define REG_FUNCTION_VALUE_P(RTX) \ |
084a1106 | 1025 | (RTL_FLAG_CHECK2("REG_FUNCTION_VALUE_P", (RTX), REG, PARALLEL)->integrated) |
6f29feb1 | 1026 | |
2d4cc6a7 JJ |
1027 | /* 1 if RTX is a reg that corresponds to a variable declared by the user. */ |
1028 | #define REG_USERVAR_P(RTX) \ | |
1029 | (RTL_FLAG_CHECK1("REG_USERVAR_P", (RTX), REG)->volatil) | |
6f29feb1 | 1030 | |
2d4cc6a7 JJ |
1031 | /* 1 if RTX is a reg that holds a pointer value. */ |
1032 | #define REG_POINTER(RTX) \ | |
1033 | (RTL_FLAG_CHECK1("REG_POINTER", (RTX), REG)->frame_related) | |
3502dc9c | 1034 | |
cdbca172 JO |
1035 | /* 1 if the given register REG corresponds to a hard register. */ |
1036 | #define HARD_REGISTER_P(REG) (HARD_REGISTER_NUM_P (REGNO (REG))) | |
1037 | ||
1038 | /* 1 if the given register number REG_NO corresponds to a hard register. */ | |
f52eda29 | 1039 | #define HARD_REGISTER_NUM_P(REG_NO) ((REG_NO) < FIRST_PSEUDO_REGISTER) |
cdbca172 | 1040 | |
6f29feb1 JW |
1041 | /* For a CONST_INT rtx, INTVAL extracts the integer. */ |
1042 | ||
83ab3839 | 1043 | #define INTVAL(RTX) XCWINT(RTX, 0, CONST_INT) |
6f29feb1 | 1044 | |
a36556a8 | 1045 | /* For a CONST_DOUBLE: |
46b33600 RH |
1046 | For a DImode, there are two integers CONST_DOUBLE_LOW is the |
1047 | low-order word and ..._HIGH the high-order. | |
3d7aafde | 1048 | For a float, there is a REAL_VALUE_TYPE structure, and |
46b33600 | 1049 | CONST_DOUBLE_REAL_VALUE(r) is a pointer to it. */ |
5692c7bc ZW |
1050 | #define CONST_DOUBLE_LOW(r) XCWINT (r, 0, CONST_DOUBLE) |
1051 | #define CONST_DOUBLE_HIGH(r) XCWINT (r, 1, CONST_DOUBLE) | |
46b33600 | 1052 | #define CONST_DOUBLE_REAL_VALUE(r) ((struct real_value *)&CONST_DOUBLE_LOW(r)) |
a36556a8 | 1053 | |
69ef87e2 AH |
1054 | /* For a CONST_VECTOR, return element #n. */ |
1055 | #define CONST_VECTOR_ELT(RTX, N) XCVECEXP (RTX, 0, N, CONST_VECTOR) | |
1056 | ||
1057 | /* For a CONST_VECTOR, return the number of elements in a vector. */ | |
1058 | #define CONST_VECTOR_NUNITS(RTX) XCVECLEN (RTX, 0, CONST_VECTOR) | |
1059 | ||
6f29feb1 | 1060 | /* For a SUBREG rtx, SUBREG_REG extracts the value we want a subreg of. |
ddef6bc7 | 1061 | SUBREG_BYTE extracts the byte-number. */ |
6f29feb1 | 1062 | |
f52eda29 GS |
1063 | #define SUBREG_REG(RTX) XCEXP (RTX, 0, SUBREG) |
1064 | #define SUBREG_BYTE(RTX) XCUINT (RTX, 1, SUBREG) | |
ddef6bc7 JJ |
1065 | |
1066 | /* in rtlanal.c */ | |
0c20a65f AJ |
1067 | extern unsigned int subreg_lsb (rtx); |
1068 | extern unsigned int subreg_regno_offset (unsigned int, enum machine_mode, | |
1069 | unsigned int, enum machine_mode); | |
1070 | extern bool subreg_offset_representable_p (unsigned int, enum machine_mode, | |
1071 | unsigned int, enum machine_mode); | |
1072 | extern unsigned int subreg_regno (rtx); | |
6f29feb1 | 1073 | |
2d4cc6a7 JJ |
1074 | /* 1 if RTX is a subreg containing a reg that is already known to be |
1075 | sign- or zero-extended from the mode of the subreg to the mode of | |
07be3989 | 1076 | the reg. SUBREG_PROMOTED_UNSIGNED_P gives the signedness of the |
f590cca1 | 1077 | extension. |
07be3989 RK |
1078 | |
1079 | When used as a LHS, is means that this extension must be done | |
1080 | when assigning to SUBREG_REG. */ | |
1081 | ||
2d4cc6a7 JJ |
1082 | #define SUBREG_PROMOTED_VAR_P(RTX) \ |
1083 | (RTL_FLAG_CHECK1("SUBREG_PROMOTED", (RTX), SUBREG)->in_struct) | |
1084 | ||
1085 | #define SUBREG_PROMOTED_UNSIGNED_SET(RTX, VAL) \ | |
1086 | do { \ | |
b0ad77d5 | 1087 | rtx const _rtx = RTL_FLAG_CHECK1("SUBREG_PROMOTED_UNSIGNED_SET", (RTX), SUBREG); \ |
2d4cc6a7 | 1088 | if ((VAL) < 0) \ |
b0ad77d5 | 1089 | _rtx->volatil = 1; \ |
2d4cc6a7 | 1090 | else { \ |
b0ad77d5 KG |
1091 | _rtx->volatil = 0; \ |
1092 | _rtx->unchanging = (VAL); \ | |
2d4cc6a7 | 1093 | } \ |
7879b81e | 1094 | } while (0) |
5a63e069 | 1095 | #define SUBREG_PROMOTED_UNSIGNED_P(RTX) \ |
2d4cc6a7 JJ |
1096 | ((RTL_FLAG_CHECK1("SUBREG_PROMOTED_UNSIGNED_P", (RTX), SUBREG)->volatil) \ |
1097 | ? -1 : (RTX)->unchanging) | |
07be3989 | 1098 | |
6f29feb1 JW |
1099 | /* Access various components of an ASM_OPERANDS rtx. */ |
1100 | ||
f52eda29 GS |
1101 | #define ASM_OPERANDS_TEMPLATE(RTX) XCSTR (RTX, 0, ASM_OPERANDS) |
1102 | #define ASM_OPERANDS_OUTPUT_CONSTRAINT(RTX) XCSTR (RTX, 1, ASM_OPERANDS) | |
1103 | #define ASM_OPERANDS_OUTPUT_IDX(RTX) XCINT (RTX, 2, ASM_OPERANDS) | |
1104 | #define ASM_OPERANDS_INPUT_VEC(RTX) XCVEC (RTX, 3, ASM_OPERANDS) | |
1105 | #define ASM_OPERANDS_INPUT_CONSTRAINT_VEC(RTX) XCVEC (RTX, 4, ASM_OPERANDS) | |
1106 | #define ASM_OPERANDS_INPUT(RTX, N) XCVECEXP (RTX, 3, N, ASM_OPERANDS) | |
1107 | #define ASM_OPERANDS_INPUT_LENGTH(RTX) XCVECLEN (RTX, 3, ASM_OPERANDS) | |
6462bb43 | 1108 | #define ASM_OPERANDS_INPUT_CONSTRAINT_EXP(RTX, N) \ |
f52eda29 | 1109 | XCVECEXP (RTX, 4, N, ASM_OPERANDS) |
3bdf5ad1 | 1110 | #define ASM_OPERANDS_INPUT_CONSTRAINT(RTX, N) \ |
f52eda29 | 1111 | XSTR (XCVECEXP (RTX, 4, N, ASM_OPERANDS), 0) |
3bdf5ad1 | 1112 | #define ASM_OPERANDS_INPUT_MODE(RTX, N) \ |
f52eda29 GS |
1113 | GET_MODE (XCVECEXP (RTX, 4, N, ASM_OPERANDS)) |
1114 | #define ASM_OPERANDS_SOURCE_FILE(RTX) XCSTR (RTX, 5, ASM_OPERANDS) | |
1115 | #define ASM_OPERANDS_SOURCE_LINE(RTX) XCINT (RTX, 6, ASM_OPERANDS) | |
6f29feb1 | 1116 | |
2d4cc6a7 | 1117 | /* 1 if RTX is a mem and we should keep the alias set for this mem |
10b76d73 RK |
1118 | unchanged when we access a component. Set to 1, or example, when we |
1119 | are already in a non-addressable component of an aggregate. */ | |
2d4cc6a7 JJ |
1120 | #define MEM_KEEP_ALIAS_SET_P(RTX) \ |
1121 | (RTL_FLAG_CHECK1("MEM_KEEP_ALIAS_SET_P", (RTX), MEM)->jump) | |
10b76d73 | 1122 | |
2d4cc6a7 JJ |
1123 | /* 1 if RTX is a mem or asm_operand for a volatile reference. */ |
1124 | #define MEM_VOLATILE_P(RTX) \ | |
1125 | (RTL_FLAG_CHECK3("MEM_VOLATILE_P", (RTX), MEM, ASM_OPERANDS, \ | |
1126 | ASM_INPUT)->volatil) | |
6f29feb1 | 1127 | |
2d4cc6a7 | 1128 | /* 1 if RTX is a mem that refers to an aggregate, either to the |
3bdf5ad1 | 1129 | aggregate itself of to a field of the aggregate. If zero, RTX may |
4eb00163 | 1130 | or may not be such a reference. */ |
2d4cc6a7 JJ |
1131 | #define MEM_IN_STRUCT_P(RTX) \ |
1132 | (RTL_FLAG_CHECK1("MEM_IN_STRUCT_P", (RTX), MEM)->in_struct) | |
6f29feb1 | 1133 | |
2d4cc6a7 | 1134 | /* 1 if RTX is a mem that refers to a scalar. If zero, RTX may or may |
3ef42a0c | 1135 | not refer to a scalar. */ |
2d4cc6a7 JJ |
1136 | #define MEM_SCALAR_P(RTX) \ |
1137 | (RTL_FLAG_CHECK1("MEM_SCALAR_P", (RTX), MEM)->frame_related) | |
c6df88cb | 1138 | |
4da2eb6b RH |
1139 | /* 1 if RTX is a mem that cannot trap. */ |
1140 | #define MEM_NOTRAP_P(RTX) \ | |
1141 | (RTL_FLAG_CHECK1("MEM_NOTRAP_P", (RTX), MEM)->call) | |
1142 | ||
40f03658 | 1143 | /* If VAL is nonzero, set MEM_IN_STRUCT_P and clear MEM_SCALAR_P in |
c6df88cb MM |
1144 | RTX. Otherwise, vice versa. Use this macro only when you are |
1145 | *sure* that you know that the MEM is in a structure, or is a | |
1146 | scalar. VAL is evaluated only once. */ | |
f52eda29 GS |
1147 | #define MEM_SET_IN_STRUCT_P(RTX, VAL) \ |
1148 | do { \ | |
f9e158c3 JM |
1149 | if (VAL) \ |
1150 | { \ | |
1151 | MEM_IN_STRUCT_P (RTX) = 1; \ | |
1152 | MEM_SCALAR_P (RTX) = 0; \ | |
1153 | } \ | |
1154 | else \ | |
1155 | { \ | |
1156 | MEM_IN_STRUCT_P (RTX) = 0; \ | |
1157 | MEM_SCALAR_P (RTX) = 1; \ | |
1158 | } \ | |
1159 | } while (0) | |
c6df88cb | 1160 | |
173b24b9 RK |
1161 | /* The memory attribute block. We provide access macros for each value |
1162 | in the block and provide defaults if none specified. */ | |
1163 | #define MEM_ATTRS(RTX) X0MEMATTR (RTX, 1) | |
1164 | ||
a560d4d4 JH |
1165 | /* The register attribute block. We provide access macros for each value |
1166 | in the block and provide defaults if none specified. */ | |
1167 | #define REG_ATTRS(RTX) X0REGATTR (RTX, 2) | |
1168 | ||
41472af8 MM |
1169 | /* For a MEM rtx, the alias set. If 0, this MEM is not in any alias |
1170 | set, and may alias anything. Otherwise, the MEM can only alias | |
3568b0ef | 1171 | MEMs in a conflicting alias set. This value is set in a |
41472af8 | 1172 | language-dependent manner in the front-end, and should not be |
3568b0ef RH |
1173 | altered in the back-end. These set numbers are tested with |
1174 | alias_sets_conflict_p. */ | |
173b24b9 RK |
1175 | #define MEM_ALIAS_SET(RTX) (MEM_ATTRS (RTX) == 0 ? 0 : MEM_ATTRS (RTX)->alias) |
1176 | ||
1177 | /* For a MEM rtx, the decl it is known to refer to, if it is known to | |
998d7deb RH |
1178 | refer to part of a DECL. It may also be a COMPONENT_REF. */ |
1179 | #define MEM_EXPR(RTX) (MEM_ATTRS (RTX) == 0 ? 0 : MEM_ATTRS (RTX)->expr) | |
173b24b9 | 1180 | |
998d7deb | 1181 | /* For a MEM rtx, the offset from the start of MEM_EXPR, if known, as a |
173b24b9 RK |
1182 | RTX that is always a CONST_INT. */ |
1183 | #define MEM_OFFSET(RTX) (MEM_ATTRS (RTX) == 0 ? 0 : MEM_ATTRS (RTX)->offset) | |
1184 | ||
1185 | /* For a MEM rtx, the size in bytes of the MEM, if known, as an RTX that | |
1186 | is always a CONST_INT. */ | |
10b76d73 RK |
1187 | #define MEM_SIZE(RTX) \ |
1188 | (MEM_ATTRS (RTX) != 0 ? MEM_ATTRS (RTX)->size \ | |
1189 | : GET_MODE (RTX) != BLKmode ? GEN_INT (GET_MODE_SIZE (GET_MODE (RTX))) \ | |
1190 | : 0) | |
173b24b9 | 1191 | |
917afb0c RK |
1192 | /* For a MEM rtx, the alignment in bits. We can use the alignment of the |
1193 | mode as a default when STRICT_ALIGNMENT, but not if not. */ | |
8ac61af7 RK |
1194 | #define MEM_ALIGN(RTX) \ |
1195 | (MEM_ATTRS (RTX) != 0 ? MEM_ATTRS (RTX)->align \ | |
917afb0c RK |
1196 | : (STRICT_ALIGNMENT && GET_MODE (RTX) != BLKmode \ |
1197 | ? GET_MODE_ALIGNMENT (GET_MODE (RTX)) : BITS_PER_UNIT)) | |
3bdf5ad1 | 1198 | |
a560d4d4 JH |
1199 | /* For a REG rtx, the decl it is known to refer to, if it is known to |
1200 | refer to part of a DECL. */ | |
1201 | #define REG_EXPR(RTX) (REG_ATTRS (RTX) == 0 ? 0 : REG_ATTRS (RTX)->decl) | |
1202 | ||
1203 | /* For a MEM rtx, the offset from the start of MEM_DECL, if known, as a | |
1204 | RTX that is always a CONST_INT. */ | |
1205 | #define REG_OFFSET(RTX) (REG_ATTRS (RTX) == 0 ? 0 : REG_ATTRS (RTX)->offset) | |
1206 | ||
3bdf5ad1 | 1207 | /* Copy the attributes that apply to memory locations from RHS to LHS. */ |
10b76d73 RK |
1208 | #define MEM_COPY_ATTRIBUTES(LHS, RHS) \ |
1209 | (MEM_VOLATILE_P (LHS) = MEM_VOLATILE_P (RHS), \ | |
1210 | MEM_IN_STRUCT_P (LHS) = MEM_IN_STRUCT_P (RHS), \ | |
1211 | MEM_SCALAR_P (LHS) = MEM_SCALAR_P (RHS), \ | |
4da2eb6b | 1212 | MEM_NOTRAP_P (LHS) = MEM_NOTRAP_P (RHS), \ |
10b76d73 RK |
1213 | RTX_UNCHANGING_P (LHS) = RTX_UNCHANGING_P (RHS), \ |
1214 | MEM_KEEP_ALIAS_SET_P (LHS) = MEM_KEEP_ALIAS_SET_P (RHS), \ | |
173b24b9 | 1215 | MEM_ATTRS (LHS) = MEM_ATTRS (RHS)) |
41472af8 | 1216 | |
2d4cc6a7 JJ |
1217 | /* 1 if RTX is a label_ref to a label outside the loop containing the |
1218 | reference. */ | |
1219 | #define LABEL_OUTSIDE_LOOP_P(RTX) \ | |
1220 | (RTL_FLAG_CHECK1("LABEL_OUTSIDE_LOOP_P", (RTX), LABEL_REF)->in_struct) | |
6f29feb1 | 1221 | |
2d4cc6a7 JJ |
1222 | /* 1 if RTX is a label_ref for a nonlocal label. */ |
1223 | /* Likewise in an expr_list for a reg_label note. */ | |
1224 | #define LABEL_REF_NONLOCAL_P(RTX) \ | |
1225 | (RTL_FLAG_CHECK2("LABEL_REF_NONLOCAL_P", (RTX), LABEL_REF, \ | |
1226 | REG_LABEL)->volatil) | |
adfaf10a | 1227 | |
2d4cc6a7 JJ |
1228 | /* 1 if RTX is a code_label that should always be considered to be needed. */ |
1229 | #define LABEL_PRESERVE_P(RTX) \ | |
1230 | (RTL_FLAG_CHECK2("LABEL_PRESERVE_P", (RTX), CODE_LABEL, NOTE)->in_struct) | |
6f29feb1 | 1231 | |
2d4cc6a7 JJ |
1232 | /* 1 if RTX is a reg that is used only in an exit test of a loop. */ |
1233 | #define REG_LOOP_TEST_P(RTX) \ | |
1234 | (RTL_FLAG_CHECK1("REG_LOOP_TEST_P", (RTX), REG)->in_struct) | |
6f29feb1 | 1235 | |
2d4cc6a7 | 1236 | /* During sched, 1 if RTX is an insn that must be scheduled together |
d45cf215 | 1237 | with the preceding insn. */ |
2d4cc6a7 | 1238 | #define SCHED_GROUP_P(RTX) \ |
be202ec2 FS |
1239 | (RTL_FLAG_CHECK3("SCHED_GROUP_P", (RTX), INSN, JUMP_INSN, CALL_INSN \ |
1240 | )->in_struct) | |
6f29feb1 JW |
1241 | |
1242 | /* For a SET rtx, SET_DEST is the place that is set | |
1243 | and SET_SRC is the value it is set to. */ | |
83ab3839 RH |
1244 | #define SET_DEST(RTX) XC2EXP(RTX, 0, SET, CLOBBER) |
1245 | #define SET_SRC(RTX) XCEXP(RTX, 1, SET) | |
2d4cc6a7 JJ |
1246 | #define SET_IS_RETURN_P(RTX) \ |
1247 | (RTL_FLAG_CHECK1("SET_IS_RETURN_P", (RTX), SET)->jump) | |
6f29feb1 JW |
1248 | |
1249 | /* For a TRAP_IF rtx, TRAP_CONDITION is an expression. */ | |
f52eda29 GS |
1250 | #define TRAP_CONDITION(RTX) XCEXP (RTX, 0, TRAP_IF) |
1251 | #define TRAP_CODE(RTX) XCEXP (RTX, 1, TRAP_IF) | |
6f29feb1 | 1252 | |
0c99ec5c RH |
1253 | /* For a COND_EXEC rtx, COND_EXEC_TEST is the condition to base |
1254 | conditionally executing the code on, COND_EXEC_CODE is the code | |
1255 | to execute if the condition is true. */ | |
f52eda29 GS |
1256 | #define COND_EXEC_TEST(RTX) XCEXP (RTX, 0, COND_EXEC) |
1257 | #define COND_EXEC_CODE(RTX) XCEXP (RTX, 1, COND_EXEC) | |
0c99ec5c | 1258 | |
2adb9af1 RH |
1259 | /* 1 if RTX is a symbol_ref that addresses this function's rtl |
1260 | constants pool. */ | |
2d4cc6a7 JJ |
1261 | #define CONSTANT_POOL_ADDRESS_P(RTX) \ |
1262 | (RTL_FLAG_CHECK1("CONSTANT_POOL_ADDRESS_P", (RTX), SYMBOL_REF)->unchanging) | |
6f29feb1 | 1263 | |
2adb9af1 RH |
1264 | /* 1 if RTX is a symbol_ref that addresses a value in the file's |
1265 | tree constant pool. This information is private to varasm.c. */ | |
1266 | #define TREE_CONSTANT_POOL_ADDRESS_P(RTX) \ | |
1267 | (RTL_FLAG_CHECK1("TREE_CONSTANT_POOL_ADDRESS_P", \ | |
1268 | (RTX), SYMBOL_REF)->frame_related) | |
bd7cf17e | 1269 | |
2d4cc6a7 JJ |
1270 | /* Used if RTX is a symbol_ref, for machine-specific purposes. */ |
1271 | #define SYMBOL_REF_FLAG(RTX) \ | |
1272 | (RTL_FLAG_CHECK1("SYMBOL_REF_FLAG", (RTX), SYMBOL_REF)->volatil) | |
6f29feb1 | 1273 | |
2d4cc6a7 JJ |
1274 | /* 1 if RTX is a symbol_ref that has been the library function in |
1275 | emit_library_call. */ | |
1276 | #define SYMBOL_REF_USED(RTX) \ | |
1277 | (RTL_FLAG_CHECK1("SYMBOL_REF_USED", (RTX), SYMBOL_REF)->used) | |
6f29feb1 | 1278 | |
2d4cc6a7 JJ |
1279 | /* 1 if RTX is a symbol_ref for a weak symbol. */ |
1280 | #define SYMBOL_REF_WEAK(RTX) \ | |
1281 | (RTL_FLAG_CHECK1("SYMBOL_REF_WEAK", (RTX), SYMBOL_REF)->integrated) | |
ff0b6b99 | 1282 | |
32a61907 | 1283 | /* The tree (decl or constant) associated with the symbol, or null. */ |
52859c77 RH |
1284 | #define SYMBOL_REF_DECL(RTX) X0TREE ((RTX), 2) |
1285 | ||
1286 | /* A set of flags on a symbol_ref that are, in some respects, redundant with | |
1287 | information derivable from the tree decl associated with this symbol. | |
1288 | Except that we build a *lot* of SYMBOL_REFs that aren't associated with a | |
1289 | decl. In some cases this is a bug. But beyond that, it's nice to cache | |
1290 | this information to avoid recomputing it. Finally, this allows space for | |
1291 | the target to store more than one bit of information, as with | |
1292 | SYMBOL_REF_FLAG. */ | |
1293 | #define SYMBOL_REF_FLAGS(RTX) X0INT ((RTX), 1) | |
1294 | ||
1295 | /* These flags are common enough to be defined for all targets. They | |
1296 | are computed by the default version of targetm.encode_section_info. */ | |
1297 | ||
1298 | /* Set if this symbol is a function. */ | |
1299 | #define SYMBOL_FLAG_FUNCTION (1 << 0) | |
1300 | #define SYMBOL_REF_FUNCTION_P(RTX) \ | |
1301 | ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_FUNCTION) != 0) | |
1302 | /* Set if targetm.binds_local_p is true. */ | |
1303 | #define SYMBOL_FLAG_LOCAL (1 << 1) | |
1304 | #define SYMBOL_REF_LOCAL_P(RTX) \ | |
1305 | ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_LOCAL) != 0) | |
1306 | /* Set if targetm.in_small_data_p is true. */ | |
1307 | #define SYMBOL_FLAG_SMALL (1 << 2) | |
1308 | #define SYMBOL_REF_SMALL_P(RTX) \ | |
1309 | ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_SMALL) != 0) | |
1310 | /* The three-bit field at [5:3] is true for TLS variables; use | |
1311 | SYMBOL_REF_TLS_MODEL to extract the field as an enum tls_model. */ | |
1312 | #define SYMBOL_FLAG_TLS_SHIFT 3 | |
1313 | #define SYMBOL_REF_TLS_MODEL(RTX) \ | |
629f6514 | 1314 | ((enum tls_model) ((SYMBOL_REF_FLAGS (RTX) >> SYMBOL_FLAG_TLS_SHIFT) & 7)) |
52859c77 RH |
1315 | /* Set if this symbol is not defined in this translation unit. */ |
1316 | #define SYMBOL_FLAG_EXTERNAL (1 << 6) | |
1317 | #define SYMBOL_REF_EXTERNAL_P(RTX) \ | |
1318 | ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_EXTERNAL) != 0) | |
1319 | ||
1320 | /* Subsequent bits are available for the target to use. */ | |
89e6b702 RH |
1321 | #define SYMBOL_FLAG_MACH_DEP_SHIFT 7 |
1322 | #define SYMBOL_FLAG_MACH_DEP (1 << SYMBOL_FLAG_MACH_DEP_SHIFT) | |
52859c77 | 1323 | |
6f29feb1 JW |
1324 | /* Define a macro to look for REG_INC notes, |
1325 | but save time on machines where they never exist. */ | |
1326 | ||
58e54c44 | 1327 | #if (defined (HAVE_PRE_INCREMENT) || defined (HAVE_PRE_DECREMENT) || defined (HAVE_POST_INCREMENT) || defined (HAVE_POST_DECREMENT)) |
f52eda29 GS |
1328 | #define FIND_REG_INC_NOTE(INSN, REG) \ |
1329 | ((REG) != NULL_RTX && REG_P ((REG)) \ | |
1330 | ? find_regno_note ((INSN), REG_INC, REGNO (REG)) \ | |
1331 | : find_reg_note ((INSN), REG_INC, (REG))) | |
6f29feb1 | 1332 | #else |
f52eda29 | 1333 | #define FIND_REG_INC_NOTE(INSN, REG) 0 |
6f29feb1 JW |
1334 | #endif |
1335 | ||
1336 | /* Indicate whether the machine has any sort of auto increment addressing. | |
1337 | If not, we can avoid checking for REG_INC notes. */ | |
1338 | ||
58e54c44 | 1339 | #if (defined (HAVE_PRE_INCREMENT) || defined (HAVE_PRE_DECREMENT) || defined (HAVE_POST_INCREMENT) || defined (HAVE_POST_DECREMENT)) |
6f29feb1 JW |
1340 | #define AUTO_INC_DEC |
1341 | #endif | |
0dfa1860 | 1342 | |
940da324 JL |
1343 | #ifndef HAVE_PRE_INCREMENT |
1344 | #define HAVE_PRE_INCREMENT 0 | |
1345 | #endif | |
1346 | ||
1347 | #ifndef HAVE_PRE_DECREMENT | |
1348 | #define HAVE_PRE_DECREMENT 0 | |
1349 | #endif | |
1350 | ||
1351 | #ifndef HAVE_POST_INCREMENT | |
1352 | #define HAVE_POST_INCREMENT 0 | |
1353 | #endif | |
1354 | ||
1355 | #ifndef HAVE_POST_DECREMENT | |
1356 | #define HAVE_POST_DECREMENT 0 | |
1357 | #endif | |
1358 | ||
4b983fdc RH |
1359 | #ifndef HAVE_POST_MODIFY_DISP |
1360 | #define HAVE_POST_MODIFY_DISP 0 | |
1361 | #endif | |
1362 | ||
1363 | #ifndef HAVE_POST_MODIFY_REG | |
1364 | #define HAVE_POST_MODIFY_REG 0 | |
1365 | #endif | |
1366 | ||
1367 | #ifndef HAVE_PRE_MODIFY_DISP | |
1368 | #define HAVE_PRE_MODIFY_DISP 0 | |
1369 | #endif | |
1370 | ||
1371 | #ifndef HAVE_PRE_MODIFY_REG | |
1372 | #define HAVE_PRE_MODIFY_REG 0 | |
1373 | #endif | |
1374 | ||
6e01bd94 MH |
1375 | |
1376 | /* Some architectures do not have complete pre/post increment/decrement | |
1377 | instruction sets, or only move some modes efficiently. These macros | |
1378 | allow us to tune autoincrement generation. */ | |
1379 | ||
1380 | #ifndef USE_LOAD_POST_INCREMENT | |
1381 | #define USE_LOAD_POST_INCREMENT(MODE) HAVE_POST_INCREMENT | |
1382 | #endif | |
1383 | ||
1384 | #ifndef USE_LOAD_POST_DECREMENT | |
1385 | #define USE_LOAD_POST_DECREMENT(MODE) HAVE_POST_DECREMENT | |
1386 | #endif | |
1387 | ||
1388 | #ifndef USE_LOAD_PRE_INCREMENT | |
1389 | #define USE_LOAD_PRE_INCREMENT(MODE) HAVE_PRE_INCREMENT | |
1390 | #endif | |
1391 | ||
1392 | #ifndef USE_LOAD_PRE_DECREMENT | |
1393 | #define USE_LOAD_PRE_DECREMENT(MODE) HAVE_PRE_DECREMENT | |
1394 | #endif | |
1395 | ||
1396 | #ifndef USE_STORE_POST_INCREMENT | |
1397 | #define USE_STORE_POST_INCREMENT(MODE) HAVE_POST_INCREMENT | |
1398 | #endif | |
1399 | ||
1400 | #ifndef USE_STORE_POST_DECREMENT | |
1401 | #define USE_STORE_POST_DECREMENT(MODE) HAVE_POST_DECREMENT | |
1402 | #endif | |
1403 | ||
1404 | #ifndef USE_STORE_PRE_INCREMENT | |
1405 | #define USE_STORE_PRE_INCREMENT(MODE) HAVE_PRE_INCREMENT | |
1406 | #endif | |
1407 | ||
1408 | #ifndef USE_STORE_PRE_DECREMENT | |
1409 | #define USE_STORE_PRE_DECREMENT(MODE) HAVE_PRE_DECREMENT | |
1410 | #endif | |
1411 | ||
4e872036 AS |
1412 | /* Determine if the insn is a PHI node. */ |
1413 | #define PHI_NODE_P(X) \ | |
f52eda29 | 1414 | ((X) && GET_CODE (X) == INSN \ |
4e872036 AS |
1415 | && GET_CODE (PATTERN (X)) == SET \ |
1416 | && GET_CODE (SET_SRC (PATTERN (X))) == PHI) | |
6f29feb1 | 1417 | \f |
bf6bb899 BS |
1418 | /* Nonzero if we need to distinguish between the return value of this function |
1419 | and the return value of a function called by this function. This helps | |
1420 | integrate.c. | |
1421 | This is 1 until after the rtl generation pass. */ | |
1422 | extern int rtx_equal_function_value_matters; | |
1423 | ||
1b3d8f8a GK |
1424 | /* Nonzero when we are generating CONCATs. */ |
1425 | extern int generating_concat_p; | |
1426 | ||
6f29feb1 JW |
1427 | /* Generally useful functions. */ |
1428 | ||
ac957f13 | 1429 | /* In expmed.c */ |
0c20a65f | 1430 | extern int ceil_log2 (unsigned HOST_WIDE_INT); |
5f4f0e22 | 1431 | |
f52eda29 | 1432 | #define plus_constant(X, C) plus_constant_wide ((X), (HOST_WIDE_INT) (C)) |
5f4f0e22 | 1433 | |
5f2d6cfa | 1434 | /* In builtins.c */ |
4682ae04 AJ |
1435 | extern rtx expand_builtin_expect_jump (tree, rtx, rtx); |
1436 | extern void purge_builtin_constant_p (void); | |
5f2d6cfa | 1437 | |
50b2596f | 1438 | /* In explow.c */ |
0c20a65f AJ |
1439 | extern void set_stack_check_libfunc (rtx); |
1440 | extern HOST_WIDE_INT trunc_int_for_mode (HOST_WIDE_INT, enum machine_mode); | |
1441 | extern rtx plus_constant_wide (rtx, HOST_WIDE_INT); | |
1442 | extern rtx plus_constant_for_output_wide (rtx, HOST_WIDE_INT); | |
1443 | extern void optimize_save_area_alloca (rtx); | |
5f4f0e22 | 1444 | |
4eb00163 | 1445 | /* In emit-rtl.c */ |
0c20a65f AJ |
1446 | extern rtx gen_rtx (enum rtx_code, enum machine_mode, ...); |
1447 | extern rtvec gen_rtvec (int, ...); | |
1448 | extern rtx copy_insn_1 (rtx); | |
1449 | extern rtx copy_insn (rtx); | |
1450 | extern rtx gen_int_mode (HOST_WIDE_INT, enum machine_mode); | |
1451 | extern rtx emit_copy_of_insn_after (rtx, rtx); | |
1452 | extern void set_reg_attrs_from_mem (rtx, rtx); | |
1453 | extern void set_mem_attrs_from_reg (rtx, rtx); | |
1454 | extern void set_reg_attrs_for_parm (rtx, rtx); | |
4eb00163 JO |
1455 | |
1456 | /* In rtl.c */ | |
0c20a65f AJ |
1457 | extern rtx rtx_alloc (RTX_CODE); |
1458 | extern rtvec rtvec_alloc (int); | |
1459 | extern rtx copy_rtx (rtx); | |
4eb00163 JO |
1460 | |
1461 | /* In emit-rtl.c */ | |
0c20a65f | 1462 | extern rtx copy_rtx_if_shared (rtx); |
4eb00163 JO |
1463 | |
1464 | /* In rtl.c */ | |
0c20a65f AJ |
1465 | extern rtx copy_most_rtx (rtx, rtx); |
1466 | extern rtx shallow_copy_rtx (rtx); | |
1467 | extern int rtx_equal_p (rtx, rtx); | |
4eb00163 JO |
1468 | |
1469 | /* In emit-rtl.c */ | |
0c20a65f AJ |
1470 | extern rtvec gen_rtvec_v (int, rtx *); |
1471 | extern rtx gen_reg_rtx (enum machine_mode); | |
1472 | extern rtx gen_rtx_REG_offset (rtx, enum machine_mode, unsigned int, int); | |
1473 | extern rtx gen_label_rtx (void); | |
1474 | extern int subreg_hard_regno (rtx, int); | |
1475 | extern rtx gen_lowpart_common (enum machine_mode, rtx); | |
1476 | extern rtx gen_lowpart (enum machine_mode, rtx); | |
4eb00163 JO |
1477 | |
1478 | /* In cse.c */ | |
0c20a65f | 1479 | extern rtx gen_lowpart_if_possible (enum machine_mode, rtx); |
4eb00163 JO |
1480 | |
1481 | /* In emit-rtl.c */ | |
0c20a65f AJ |
1482 | extern rtx gen_highpart (enum machine_mode, rtx); |
1483 | extern rtx gen_highpart_mode (enum machine_mode, enum machine_mode, rtx); | |
1484 | extern rtx gen_realpart (enum machine_mode, rtx); | |
1485 | extern rtx gen_imagpart (enum machine_mode, rtx); | |
1486 | extern rtx operand_subword (rtx, unsigned int, int, enum machine_mode); | |
1487 | extern rtx constant_subword (rtx, int, enum machine_mode); | |
4eb00163 JO |
1488 | |
1489 | /* In emit-rtl.c */ | |
0c20a65f AJ |
1490 | extern rtx operand_subword_force (rtx, unsigned int, enum machine_mode); |
1491 | extern int subreg_lowpart_p (rtx); | |
1492 | extern unsigned int subreg_lowpart_offset (enum machine_mode, | |
1493 | enum machine_mode); | |
1494 | extern unsigned int subreg_highpart_offset (enum machine_mode, | |
1495 | enum machine_mode); | |
1496 | extern rtx make_safe_from (rtx, rtx); | |
1497 | extern rtx convert_memory_address (enum machine_mode, rtx); | |
1498 | extern rtx get_insns (void); | |
1499 | extern const char *get_insn_name (int); | |
1500 | extern rtx get_last_insn (void); | |
1501 | extern rtx get_last_insn_anywhere (void); | |
1502 | extern rtx get_first_nonnote_insn (void); | |
1503 | extern rtx get_last_nonnote_insn (void); | |
1504 | extern void start_sequence (void); | |
1505 | extern void push_to_sequence (rtx); | |
1506 | extern void end_sequence (void); | |
1507 | extern void push_to_full_sequence (rtx, rtx); | |
1508 | extern void end_full_sequence (rtx*, rtx*); | |
4eb00163 JO |
1509 | |
1510 | /* In varasm.c */ | |
0c20a65f AJ |
1511 | extern rtx immed_double_const (HOST_WIDE_INT, HOST_WIDE_INT, |
1512 | enum machine_mode); | |
0c20a65f | 1513 | extern rtx force_const_mem (enum machine_mode, rtx); |
4eb00163 | 1514 | |
4eb00163 | 1515 | /* In varasm.c */ |
0c20a65f AJ |
1516 | extern rtx get_pool_constant (rtx); |
1517 | extern rtx get_pool_constant_mark (rtx, bool *); | |
1518 | extern enum machine_mode get_pool_mode (rtx); | |
1519 | extern rtx get_pool_constant_for_function (struct function *, rtx); | |
1520 | extern enum machine_mode get_pool_mode_for_function (struct function *, rtx); | |
1521 | extern int get_pool_offset (rtx); | |
1522 | extern rtx simplify_subtraction (rtx); | |
4eb00163 JO |
1523 | |
1524 | /* In function.c */ | |
0c20a65f AJ |
1525 | extern rtx assign_stack_local (enum machine_mode, HOST_WIDE_INT, int); |
1526 | extern rtx assign_stack_temp (enum machine_mode, HOST_WIDE_INT, int); | |
1527 | extern rtx assign_stack_temp_for_type (enum machine_mode, | |
1528 | HOST_WIDE_INT, int, tree); | |
1529 | extern rtx assign_temp (tree, int, int, int); | |
fd3acbb3 | 1530 | |
4eb00163 | 1531 | /* In emit-rtl.c */ |
0c20a65f AJ |
1532 | extern rtx emit_insn_before (rtx, rtx); |
1533 | extern rtx emit_insn_before_setloc (rtx, rtx, int); | |
1534 | extern rtx emit_jump_insn_before (rtx, rtx); | |
1535 | extern rtx emit_jump_insn_before_setloc (rtx, rtx, int); | |
1536 | extern rtx emit_call_insn_before (rtx, rtx); | |
1537 | extern rtx emit_call_insn_before_setloc (rtx, rtx, int); | |
1538 | extern rtx emit_barrier_before (rtx); | |
1539 | extern rtx emit_label_before (rtx, rtx); | |
1540 | extern rtx emit_note_before (int, rtx); | |
1541 | extern rtx emit_insn_after (rtx, rtx); | |
1542 | extern rtx emit_insn_after_setloc (rtx, rtx, int); | |
1543 | extern rtx emit_jump_insn_after (rtx, rtx); | |
1544 | extern rtx emit_jump_insn_after_setloc (rtx, rtx, int); | |
1545 | extern rtx emit_call_insn_after (rtx, rtx); | |
1546 | extern rtx emit_call_insn_after_setloc (rtx, rtx, int); | |
1547 | extern rtx emit_barrier_after (rtx); | |
1548 | extern rtx emit_label_after (rtx, rtx); | |
1549 | extern rtx emit_note_after (int, rtx); | |
1550 | extern rtx emit_note_copy_after (rtx, rtx); | |
1551 | extern rtx emit_insn (rtx); | |
1552 | extern rtx emit_jump_insn (rtx); | |
1553 | extern rtx emit_call_insn (rtx); | |
1554 | extern rtx emit_label (rtx); | |
1555 | extern rtx emit_barrier (void); | |
1556 | extern rtx emit_note (int); | |
1557 | extern rtx emit_note_copy (rtx); | |
0cea056b | 1558 | extern rtx emit_line_note (location_t); |
0c20a65f AJ |
1559 | extern rtx make_insn_raw (rtx); |
1560 | extern void add_function_usage_to (rtx, rtx); | |
1561 | extern rtx last_call_insn (void); | |
1562 | extern rtx previous_insn (rtx); | |
1563 | extern rtx next_insn (rtx); | |
1564 | extern rtx prev_nonnote_insn (rtx); | |
1565 | extern rtx next_nonnote_insn (rtx); | |
1566 | extern rtx prev_real_insn (rtx); | |
1567 | extern rtx next_real_insn (rtx); | |
1568 | extern rtx prev_active_insn (rtx); | |
1569 | extern rtx next_active_insn (rtx); | |
1570 | extern int active_insn_p (rtx); | |
1571 | extern rtx prev_label (rtx); | |
1572 | extern rtx next_label (rtx); | |
1573 | extern rtx next_cc0_user (rtx); | |
1574 | extern rtx prev_cc0_setter (rtx); | |
4eb00163 | 1575 | |
1292ec0c | 1576 | /* In cfglayout.c */ |
0c20a65f AJ |
1577 | extern tree choose_inner_scope (tree, tree); |
1578 | extern int insn_line (rtx); | |
1579 | extern const char * insn_file (rtx); | |
9ae130f8 JH |
1580 | extern int locator_line (int); |
1581 | extern const char * locator_file (int); | |
0435312e | 1582 | extern int prologue_locator, epilogue_locator; |
1292ec0c | 1583 | |
4eb00163 | 1584 | /* In jump.c */ |
0c20a65f AJ |
1585 | extern enum rtx_code reverse_condition (enum rtx_code); |
1586 | extern enum rtx_code reverse_condition_maybe_unordered (enum rtx_code); | |
1587 | extern enum rtx_code swap_condition (enum rtx_code); | |
1588 | extern enum rtx_code unsigned_condition (enum rtx_code); | |
1589 | extern enum rtx_code signed_condition (enum rtx_code); | |
1590 | extern void mark_jump_label (rtx, rtx, int); | |
1591 | extern void cleanup_barriers (void); | |
4eb00163 | 1592 | |
4eb00163 | 1593 | /* In jump.c */ |
0c20a65f AJ |
1594 | extern bool squeeze_notes (rtx *, rtx *); |
1595 | extern rtx delete_related_insns (rtx); | |
1596 | extern void delete_jump (rtx); | |
1597 | extern void delete_barrier (rtx); | |
1598 | extern rtx get_label_before (rtx); | |
1599 | extern rtx get_label_after (rtx); | |
1600 | extern rtx follow_jumps (rtx); | |
4eb00163 JO |
1601 | |
1602 | /* In recog.c */ | |
0c20a65f | 1603 | extern rtx *find_constant_term_loc (rtx *); |
4eb00163 JO |
1604 | |
1605 | /* In emit-rtl.c */ | |
0c20a65f | 1606 | extern rtx try_split (rtx, rtx, int); |
6b24c259 | 1607 | extern int split_branch_probability; |
4eb00163 JO |
1608 | |
1609 | /* In unknown file */ | |
0c20a65f | 1610 | extern rtx split_insns (rtx, rtx); |
4eb00163 JO |
1611 | |
1612 | /* In simplify-rtx.c */ | |
0c20a65f AJ |
1613 | extern rtx simplify_unary_operation (enum rtx_code, enum machine_mode, rtx, |
1614 | enum machine_mode); | |
1615 | extern rtx simplify_binary_operation (enum rtx_code, enum machine_mode, rtx, | |
1616 | rtx); | |
1617 | extern rtx simplify_ternary_operation (enum rtx_code, enum machine_mode, | |
1618 | enum machine_mode, rtx, rtx, rtx); | |
1619 | extern rtx simplify_relational_operation (enum rtx_code, enum machine_mode, | |
1620 | rtx, rtx); | |
1621 | extern rtx simplify_gen_binary (enum rtx_code, enum machine_mode, rtx, rtx); | |
1622 | extern rtx simplify_gen_unary (enum rtx_code, enum machine_mode, rtx, | |
1623 | enum machine_mode); | |
1624 | extern rtx simplify_gen_ternary (enum rtx_code, enum machine_mode, | |
1625 | enum machine_mode, rtx, rtx, rtx); | |
1626 | extern rtx simplify_gen_relational (enum rtx_code, enum machine_mode, | |
1627 | enum machine_mode, rtx, rtx); | |
1628 | extern rtx simplify_subreg (enum machine_mode, rtx, enum machine_mode, | |
1629 | unsigned int); | |
1630 | extern rtx simplify_gen_subreg (enum machine_mode, rtx, enum machine_mode, | |
1631 | unsigned int); | |
1632 | extern rtx simplify_replace_rtx (rtx, rtx, rtx); | |
1633 | extern rtx simplify_rtx (rtx); | |
1634 | extern rtx avoid_constant_pool_reference (rtx); | |
4eb00163 | 1635 | |
4eb00163 | 1636 | /* In function.c */ |
0c20a65f | 1637 | extern rtx gen_mem_addressof (rtx, tree, int); |
4eb00163 | 1638 | |
4eb00163 | 1639 | /* In regclass.c */ |
fee226d2 R |
1640 | extern enum machine_mode choose_hard_reg_mode (unsigned int, unsigned int, |
1641 | bool); | |
4eb00163 JO |
1642 | |
1643 | /* In emit-rtl.c */ | |
0c20a65f | 1644 | extern rtx set_unique_reg_note (rtx, enum reg_note, rtx); |
9ae8ffe7 | 1645 | |
e9a25f70 JL |
1646 | /* Functions in rtlanal.c */ |
1647 | ||
b1cdafbb JH |
1648 | /* Single set is implemented as macro for performance reasons. */ |
1649 | #define single_set(I) (INSN_P (I) \ | |
1650 | ? (GET_CODE (PATTERN (I)) == SET \ | |
1651 | ? PATTERN (I) : single_set_1 (I)) \ | |
1652 | : NULL_RTX) | |
2130b7fb | 1653 | #define single_set_1(I) single_set_2 (I, PATTERN (I)) |
b1cdafbb | 1654 | |
39811184 | 1655 | /* Structure used for passing data to REPLACE_LABEL. */ |
4af16369 | 1656 | typedef struct replace_label_data |
39811184 JZ |
1657 | { |
1658 | rtx r1; | |
1659 | rtx r2; | |
4af16369 JZ |
1660 | bool update_label_nuses; |
1661 | } replace_label_data; | |
39811184 | 1662 | |
0c20a65f AJ |
1663 | extern int rtx_addr_can_trap_p (rtx); |
1664 | extern bool nonzero_address_p (rtx); | |
1665 | extern int rtx_unstable_p (rtx); | |
1666 | extern int rtx_varies_p (rtx, int); | |
1667 | extern int rtx_addr_varies_p (rtx, int); | |
1668 | extern HOST_WIDE_INT get_integer_term (rtx); | |
1669 | extern rtx get_related_value (rtx); | |
1670 | extern rtx get_jump_table_offset (rtx, rtx *); | |
1671 | extern int global_reg_mentioned_p (rtx); | |
1672 | extern int reg_mentioned_p (rtx, rtx); | |
1673 | extern int count_occurrences (rtx, rtx, int); | |
1674 | extern int reg_referenced_p (rtx, rtx); | |
1675 | extern int reg_used_between_p (rtx, rtx, rtx); | |
1676 | extern int reg_referenced_between_p (rtx, rtx, rtx); | |
1677 | extern int reg_set_between_p (rtx, rtx, rtx); | |
1678 | extern int regs_set_between_p (rtx, rtx, rtx); | |
1679 | extern int commutative_operand_precedence (rtx); | |
1680 | extern int swap_commutative_operands_p (rtx, rtx); | |
1681 | extern int modified_between_p (rtx, rtx, rtx); | |
1682 | extern int no_labels_between_p (rtx, rtx); | |
1683 | extern int no_jumps_between_p (rtx, rtx); | |
1684 | extern int modified_in_p (rtx, rtx); | |
1685 | extern int insn_dependent_p (rtx, rtx); | |
1686 | extern int reg_set_p (rtx, rtx); | |
1687 | extern rtx single_set_2 (rtx, rtx); | |
1688 | extern int multiple_sets (rtx); | |
1689 | extern int set_noop_p (rtx); | |
1690 | extern int noop_move_p (rtx); | |
1691 | extern rtx find_last_value (rtx, rtx *, rtx, int); | |
1692 | extern int refers_to_regno_p (unsigned int, unsigned int, rtx, rtx *); | |
1693 | extern int reg_overlap_mentioned_p (rtx, rtx); | |
1694 | extern rtx set_of (rtx, rtx); | |
1695 | extern void note_stores (rtx, void (*) (rtx, rtx, void *), void *); | |
1696 | extern void note_uses (rtx *, void (*) (rtx *, void *), void *); | |
1697 | extern rtx reg_set_last (rtx, rtx); | |
1698 | extern int dead_or_set_p (rtx, rtx); | |
1699 | extern int dead_or_set_regno_p (rtx, unsigned int); | |
1700 | extern rtx find_reg_note (rtx, enum reg_note, rtx); | |
1701 | extern rtx find_regno_note (rtx, enum reg_note, unsigned int); | |
1702 | extern rtx find_reg_equal_equiv_note (rtx); | |
1703 | extern int find_reg_fusage (rtx, enum rtx_code, rtx); | |
1704 | extern int find_regno_fusage (rtx, enum rtx_code, unsigned int); | |
1705 | extern int pure_call_p (rtx); | |
1706 | extern void remove_note (rtx, rtx); | |
1707 | extern int side_effects_p (rtx); | |
1708 | extern int volatile_refs_p (rtx); | |
1709 | extern int volatile_insn_p (rtx); | |
1710 | extern int may_trap_p (rtx); | |
1711 | extern int inequality_comparisons_p (rtx); | |
1712 | extern rtx replace_rtx (rtx, rtx, rtx); | |
1713 | extern rtx replace_regs (rtx, rtx *, unsigned int, int); | |
1714 | extern int replace_label (rtx *, void *); | |
1715 | extern int rtx_referenced_p (rtx, rtx); | |
1716 | extern bool tablejump_p (rtx, rtx *, rtx *); | |
1717 | extern int computed_jump_p (rtx); | |
1718 | typedef int (*rtx_function) (rtx *, void *); | |
1719 | extern int for_each_rtx (rtx *, rtx_function, void *); | |
1720 | extern rtx regno_use_in (unsigned int, rtx); | |
1721 | extern int auto_inc_p (rtx); | |
1722 | extern int in_expr_list_p (rtx, rtx); | |
1723 | extern void remove_node_from_expr_list (rtx, rtx *); | |
1724 | extern int insns_safe_to_move_p (rtx, rtx, rtx *); | |
1725 | extern int loc_mentioned_in_p (rtx *, rtx); | |
1726 | extern rtx find_first_parameter_load (rtx, rtx); | |
1727 | extern bool keep_with_call_p (rtx); | |
6f29feb1 | 1728 | |
ae0b51ef JL |
1729 | /* flow.c */ |
1730 | ||
0c20a65f | 1731 | extern rtx find_use_as_address (rtx, rtx, HOST_WIDE_INT); |
e2500fed GK |
1732 | |
1733 | /* lists.c */ | |
1734 | ||
3d7aafde AJ |
1735 | void free_EXPR_LIST_list (rtx *); |
1736 | void free_INSN_LIST_list (rtx *); | |
1737 | void free_EXPR_LIST_node (rtx); | |
1738 | void free_INSN_LIST_node (rtx); | |
1739 | rtx alloc_INSN_LIST (rtx, rtx); | |
1740 | rtx alloc_EXPR_LIST (int, rtx, rtx); | |
ae0b51ef JL |
1741 | |
1742 | /* regclass.c */ | |
1743 | ||
6f29feb1 | 1744 | /* Maximum number of parallel sets and clobbers in any insn in this fn. |
d91edf86 | 1745 | Always at least 3, since the combiner could put that many together |
6f29feb1 JW |
1746 | and we want this to remain correct for all the remaining passes. */ |
1747 | ||
1748 | extern int max_parallel; | |
1749 | ||
e0c6d139 | 1750 | /* Free up register info memory. */ |
0c20a65f | 1751 | extern void free_reg_info (void); |
e0c6d139 | 1752 | |
ae0b51ef | 1753 | /* recog.c */ |
0c20a65f AJ |
1754 | extern int asm_noperands (rtx); |
1755 | extern const char *decode_asm_operands (rtx, rtx *, rtx **, const char **, | |
1756 | enum machine_mode *); | |
6f29feb1 | 1757 | |
0c20a65f AJ |
1758 | extern enum reg_class reg_preferred_class (int); |
1759 | extern enum reg_class reg_alternate_class (int); | |
6f29feb1 | 1760 | |
0c20a65f | 1761 | extern rtx get_first_nonparm_insn (void); |
6f29feb1 | 1762 | |
0c20a65f AJ |
1763 | extern void split_all_insns (int); |
1764 | extern void split_all_insns_noflow (void); | |
6a73406e | 1765 | |
68d75312 | 1766 | #define MAX_SAVED_CONST_INT 64 |
e2500fed | 1767 | extern GTY(()) rtx const_int_rtx[MAX_SAVED_CONST_INT * 2 + 1]; |
68d75312 | 1768 | |
5da077de AS |
1769 | #define const0_rtx (const_int_rtx[MAX_SAVED_CONST_INT]) |
1770 | #define const1_rtx (const_int_rtx[MAX_SAVED_CONST_INT+1]) | |
1771 | #define const2_rtx (const_int_rtx[MAX_SAVED_CONST_INT+2]) | |
1772 | #define constm1_rtx (const_int_rtx[MAX_SAVED_CONST_INT-1]) | |
e2500fed | 1773 | extern GTY(()) rtx const_true_rtx; |
a8efe40d | 1774 | |
e2500fed | 1775 | extern GTY(()) rtx const_tiny_rtx[3][(int) MAX_MACHINE_MODE]; |
a8efe40d | 1776 | |
f590cca1 | 1777 | /* Returns a constant 0 rtx in mode MODE. Integer modes are treated the |
a8efe40d RK |
1778 | same as VOIDmode. */ |
1779 | ||
1780 | #define CONST0_RTX(MODE) (const_tiny_rtx[0][(int) (MODE)]) | |
1781 | ||
1782 | /* Likewise, for the constants 1 and 2. */ | |
1783 | ||
1784 | #define CONST1_RTX(MODE) (const_tiny_rtx[1][(int) (MODE)]) | |
1785 | #define CONST2_RTX(MODE) (const_tiny_rtx[2][(int) (MODE)]) | |
6f29feb1 | 1786 | |
5da077de AS |
1787 | /* If HARD_FRAME_POINTER_REGNUM is defined, then a special dummy reg |
1788 | is used to represent the frame pointer. This is because the | |
1789 | hard frame pointer and the automatic variables are separated by an amount | |
1790 | that cannot be determined until after register allocation. We can assume | |
1791 | that in this case ELIMINABLE_REGS will be defined, one action of which | |
eebedaa5 | 1792 | will be to eliminate FRAME_POINTER_REGNUM into HARD_FRAME_POINTER_REGNUM. */ |
5da077de AS |
1793 | #ifndef HARD_FRAME_POINTER_REGNUM |
1794 | #define HARD_FRAME_POINTER_REGNUM FRAME_POINTER_REGNUM | |
1795 | #endif | |
1796 | ||
1797 | /* Index labels for global_rtl. */ | |
1798 | enum global_rtl_index | |
68d75312 | 1799 | { |
5da077de AS |
1800 | GR_PC, |
1801 | GR_CC0, | |
1802 | GR_STACK_POINTER, | |
1803 | GR_FRAME_POINTER, | |
1804 | /* For register elimination to work properly these hard_frame_pointer_rtx, | |
1805 | frame_pointer_rtx, and arg_pointer_rtx must be the same if they refer to | |
1806 | the same register. */ | |
1807 | #if FRAME_POINTER_REGNUM == ARG_POINTER_REGNUM | |
1808 | GR_ARG_POINTER = GR_FRAME_POINTER, | |
1809 | #endif | |
1810 | #if HARD_FRAME_POINTER_REGNUM == FRAME_POINTER_REGNUM | |
1811 | GR_HARD_FRAME_POINTER = GR_FRAME_POINTER, | |
1812 | #else | |
1813 | GR_HARD_FRAME_POINTER, | |
1814 | #endif | |
1815 | #if FRAME_POINTER_REGNUM != ARG_POINTER_REGNUM | |
1816 | #if HARD_FRAME_POINTER_REGNUM == ARG_POINTER_REGNUM | |
1817 | GR_ARG_POINTER = GR_HARD_FRAME_POINTER, | |
1818 | #else | |
1819 | GR_ARG_POINTER, | |
1820 | #endif | |
1821 | #endif | |
1822 | GR_VIRTUAL_INCOMING_ARGS, | |
1823 | GR_VIRTUAL_STACK_ARGS, | |
1824 | GR_VIRTUAL_STACK_DYNAMIC, | |
1825 | GR_VIRTUAL_OUTGOING_ARGS, | |
1826 | GR_VIRTUAL_CFA, | |
1827 | ||
1828 | GR_MAX | |
1829 | }; | |
1830 | ||
1831 | /* Pointers to standard pieces of rtx are stored here. */ | |
e2500fed | 1832 | extern GTY(()) rtx global_rtl[GR_MAX]; |
5da077de AS |
1833 | |
1834 | /* Standard pieces of rtx, to be substituted directly into things. */ | |
1835 | #define pc_rtx (global_rtl[GR_PC]) | |
1836 | #define cc0_rtx (global_rtl[GR_CC0]) | |
68d75312 | 1837 | |
6f29feb1 JW |
1838 | /* All references to certain hard regs, except those created |
1839 | by allocating pseudo regs into them (when that's possible), | |
1840 | go through these unique rtx objects. */ | |
5da077de AS |
1841 | #define stack_pointer_rtx (global_rtl[GR_STACK_POINTER]) |
1842 | #define frame_pointer_rtx (global_rtl[GR_FRAME_POINTER]) | |
1843 | #define hard_frame_pointer_rtx (global_rtl[GR_HARD_FRAME_POINTER]) | |
1844 | #define arg_pointer_rtx (global_rtl[GR_ARG_POINTER]) | |
68d75312 | 1845 | |
e2500fed | 1846 | extern GTY(()) rtx pic_offset_table_rtx; |
e2500fed GK |
1847 | extern GTY(()) rtx static_chain_rtx; |
1848 | extern GTY(()) rtx static_chain_incoming_rtx; | |
1849 | extern GTY(()) rtx return_address_pointer_rtx; | |
3b80f6ca RH |
1850 | |
1851 | /* Include the RTL generation functions. */ | |
1852 | ||
1853 | #ifndef NO_GENRTL_H | |
1854 | #include "genrtl.h" | |
1855 | #endif | |
1856 | ||
41472af8 MM |
1857 | /* There are some RTL codes that require special attention; the |
1858 | generation functions included above do the raw handling. If you | |
b4213325 MM |
1859 | add to this list, modify special_rtx in gengenrtl.c as well. You |
1860 | should also modify gen_rtx to use the special function. */ | |
3b80f6ca | 1861 | |
0c20a65f AJ |
1862 | extern rtx gen_rtx_CONST_INT (enum machine_mode, HOST_WIDE_INT); |
1863 | extern rtx gen_rtx_CONST_VECTOR (enum machine_mode, rtvec); | |
1864 | extern rtx gen_raw_REG (enum machine_mode, int); | |
1865 | extern rtx gen_rtx_REG (enum machine_mode, unsigned); | |
1866 | extern rtx gen_rtx_SUBREG (enum machine_mode, rtx, int); | |
1867 | extern rtx gen_rtx_MEM (enum machine_mode, rtx); | |
3b80f6ca | 1868 | |
0c20a65f | 1869 | extern rtx gen_lowpart_SUBREG (enum machine_mode, rtx); |
ddef6bc7 | 1870 | |
aefdd5ab JL |
1871 | /* We need the cast here to ensure that we get the same result both with |
1872 | and without prototypes. */ | |
1873 | #define GEN_INT(N) gen_rtx_CONST_INT (VOIDmode, (HOST_WIDE_INT) (N)) | |
3b80f6ca | 1874 | |
6f29feb1 JW |
1875 | /* Virtual registers are used during RTL generation to refer to locations into |
1876 | the stack frame when the actual location isn't known until RTL generation | |
1877 | is complete. The routine instantiate_virtual_regs replaces these with | |
1878 | the proper value, which is normally {frame,arg,stack}_pointer_rtx plus | |
1879 | a constant. */ | |
1880 | ||
1881 | #define FIRST_VIRTUAL_REGISTER (FIRST_PSEUDO_REGISTER) | |
1882 | ||
1883 | /* This points to the first word of the incoming arguments passed on the stack, | |
1884 | either by the caller or by the callee when pretending it was passed by the | |
1885 | caller. */ | |
1886 | ||
5da077de | 1887 | #define virtual_incoming_args_rtx (global_rtl[GR_VIRTUAL_INCOMING_ARGS]) |
6f29feb1 JW |
1888 | |
1889 | #define VIRTUAL_INCOMING_ARGS_REGNUM (FIRST_VIRTUAL_REGISTER) | |
1890 | ||
60343c3b | 1891 | /* If FRAME_GROWS_DOWNWARD, this points to immediately above the first |
6f29feb1 JW |
1892 | variable on the stack. Otherwise, it points to the first variable on |
1893 | the stack. */ | |
1894 | ||
5da077de | 1895 | #define virtual_stack_vars_rtx (global_rtl[GR_VIRTUAL_STACK_ARGS]) |
6f29feb1 JW |
1896 | |
1897 | #define VIRTUAL_STACK_VARS_REGNUM ((FIRST_VIRTUAL_REGISTER) + 1) | |
1898 | ||
1899 | /* This points to the location of dynamically-allocated memory on the stack | |
1900 | immediately after the stack pointer has been adjusted by the amount | |
1901 | desired. */ | |
1902 | ||
5da077de | 1903 | #define virtual_stack_dynamic_rtx (global_rtl[GR_VIRTUAL_STACK_DYNAMIC]) |
6f29feb1 JW |
1904 | |
1905 | #define VIRTUAL_STACK_DYNAMIC_REGNUM ((FIRST_VIRTUAL_REGISTER) + 2) | |
1906 | ||
1907 | /* This points to the location in the stack at which outgoing arguments should | |
1908 | be written when the stack is pre-pushed (arguments pushed using push | |
1909 | insns always use sp). */ | |
1910 | ||
5da077de | 1911 | #define virtual_outgoing_args_rtx (global_rtl[GR_VIRTUAL_OUTGOING_ARGS]) |
6f29feb1 JW |
1912 | |
1913 | #define VIRTUAL_OUTGOING_ARGS_REGNUM ((FIRST_VIRTUAL_REGISTER) + 3) | |
1914 | ||
71038426 | 1915 | /* This points to the Canonical Frame Address of the function. This |
14b493d6 | 1916 | should correspond to the CFA produced by INCOMING_FRAME_SP_OFFSET, |
71038426 | 1917 | but is calculated relative to the arg pointer for simplicity; the |
f590cca1 | 1918 | frame pointer nor stack pointer are necessarily fixed relative to |
71038426 RH |
1919 | the CFA until after reload. */ |
1920 | ||
5da077de | 1921 | #define virtual_cfa_rtx (global_rtl[GR_VIRTUAL_CFA]) |
71038426 RH |
1922 | |
1923 | #define VIRTUAL_CFA_REGNUM ((FIRST_VIRTUAL_REGISTER) + 4) | |
1924 | ||
1925 | #define LAST_VIRTUAL_REGISTER ((FIRST_VIRTUAL_REGISTER) + 4) | |
6f29feb1 | 1926 | |
a06ef755 | 1927 | /* Nonzero if REGNUM is a pointer into the stack frame. */ |
3d7aafde | 1928 | #define REGNO_PTR_FRAME_P(REGNUM) \ |
a06ef755 RK |
1929 | ((REGNUM) == STACK_POINTER_REGNUM \ |
1930 | || (REGNUM) == FRAME_POINTER_REGNUM \ | |
1931 | || (REGNUM) == HARD_FRAME_POINTER_REGNUM \ | |
1932 | || (REGNUM) == ARG_POINTER_REGNUM \ | |
1933 | || ((REGNUM) >= FIRST_VIRTUAL_REGISTER \ | |
1934 | && (REGNUM) <= LAST_VIRTUAL_REGISTER)) | |
1935 | ||
848e0190 | 1936 | /* REGNUM never really appearing in the INSN stream. */ |
cf403648 | 1937 | #define INVALID_REGNUM (~(unsigned int) 0) |
848e0190 | 1938 | |
0c20a65f | 1939 | extern rtx output_constant_def (tree, int); |
75c20980 | 1940 | extern rtx lookup_constant_def (tree); |
6f29feb1 | 1941 | |
a2a6a79b | 1942 | /* Called from integrate.c when a deferred constant is inlined. */ |
0c20a65f | 1943 | extern void notice_rtl_inlining_of_deferred_constant (void); |
a2a6a79b | 1944 | |
0ea0e871 JL |
1945 | /* Nonzero after the second flow pass has completed. |
1946 | Set to 1 or 0 by toplev.c */ | |
1947 | extern int flow2_completed; | |
1948 | ||
6f29feb1 | 1949 | /* Nonzero after end of reload pass. |
0ea0e871 | 1950 | Set to 1 or 0 by reload1.c. */ |
6f29feb1 JW |
1951 | |
1952 | extern int reload_completed; | |
1953 | ||
fe3ad572 SC |
1954 | /* Nonzero after thread_prologue_and_epilogue_insns has run. */ |
1955 | extern int epilogue_completed; | |
1956 | ||
6f29feb1 JW |
1957 | /* Set to 1 while reload_as_needed is operating. |
1958 | Required by some machines to handle any generated moves differently. */ | |
1959 | ||
1960 | extern int reload_in_progress; | |
1961 | ||
1962 | /* If this is nonzero, we do not bother generating VOLATILE | |
1963 | around volatile memory references, and we are willing to | |
1964 | output indirect addresses. If cse is to follow, we reject | |
1965 | indirect addresses so a useful potential cse is generated; | |
1966 | if it is used only once, instruction combination will produce | |
1967 | the same indirect address eventually. */ | |
1968 | extern int cse_not_expected; | |
1969 | ||
f1db3576 JL |
1970 | /* Set to nonzero before life analysis to indicate that it is unsafe to |
1971 | generate any new pseudo registers. */ | |
1972 | extern int no_new_pseudos; | |
1973 | ||
f5118aa5 | 1974 | /* Translates rtx code to tree code, for those codes needed by |
88efc60a RK |
1975 | REAL_ARITHMETIC. The function returns an int because the caller may not |
1976 | know what `enum tree_code' means. */ | |
1977 | ||
0c20a65f | 1978 | extern int rtx_to_tree_code (enum rtx_code); |
9ae8ffe7 | 1979 | |
ac957f13 JL |
1980 | /* In cse.c */ |
1981 | struct cse_basic_block_data; | |
f1c1dfc3 BS |
1982 | |
1983 | /* Return the right cost to give to an operation | |
1984 | to make the cost of the corresponding register-to-register instruction | |
1985 | N times that of a fast register-to-register instruction. */ | |
1986 | #define COSTS_N_INSNS(N) ((N) * 4) | |
1987 | ||
1988 | /* Maximum cost of a rtl expression. This value has the special meaning | |
1989 | not to use an rtx with this cost under any circumstances. */ | |
1990 | #define MAX_COST INT_MAX | |
1991 | ||
0c20a65f AJ |
1992 | extern int rtx_cost (rtx, enum rtx_code); |
1993 | extern int address_cost (rtx, enum machine_mode); | |
1994 | extern int delete_trivially_dead_insns (rtx, int); | |
ac957f13 | 1995 | #ifdef BUFSIZ |
0c20a65f | 1996 | extern int cse_main (rtx, int, int, FILE *); |
ac957f13 | 1997 | #endif |
0c20a65f AJ |
1998 | extern void cse_end_of_basic_block (rtx, struct cse_basic_block_data *, |
1999 | int, int, int); | |
ac957f13 JL |
2000 | |
2001 | /* In jump.c */ | |
0c20a65f AJ |
2002 | extern int comparison_dominates_p (enum rtx_code, enum rtx_code); |
2003 | extern int condjump_p (rtx); | |
2004 | extern int any_condjump_p (rtx); | |
2005 | extern int any_uncondjump_p (rtx); | |
2006 | extern int safe_to_remove_jump_p (rtx); | |
2007 | extern rtx pc_set (rtx); | |
2008 | extern rtx condjump_label (rtx); | |
2009 | extern int simplejump_p (rtx); | |
2010 | extern int returnjump_p (rtx); | |
2011 | extern int onlyjump_p (rtx); | |
2012 | extern int only_sets_cc0_p (rtx); | |
2013 | extern int sets_cc0_p (rtx); | |
2014 | extern int invert_jump_1 (rtx, rtx); | |
2015 | extern int invert_jump (rtx, rtx, int); | |
2016 | extern int rtx_renumbered_equal_p (rtx, rtx); | |
2017 | extern int true_regnum (rtx); | |
2018 | extern unsigned int reg_or_subregno (rtx); | |
2019 | extern int redirect_jump_1 (rtx, rtx); | |
2020 | extern int redirect_jump (rtx, rtx, int); | |
2021 | extern void rebuild_jump_labels (rtx); | |
2022 | extern enum rtx_code reversed_comparison_code (rtx, rtx); | |
2023 | extern enum rtx_code reversed_comparison_code_parts (enum rtx_code, | |
2024 | rtx, rtx, rtx); | |
2025 | extern void delete_for_peephole (rtx, rtx); | |
2026 | extern int condjump_in_parallel_p (rtx); | |
2027 | extern void never_reached_warning (rtx, rtx); | |
2028 | extern void purge_line_number_notes (rtx); | |
2029 | extern void copy_loop_headers (rtx); | |
14bf4a33 | 2030 | |
eebedaa5 | 2031 | /* In emit-rtl.c. */ |
0c20a65f AJ |
2032 | extern int max_reg_num (void); |
2033 | extern int max_label_num (void); | |
2034 | extern int get_first_label_num (void); | |
2035 | extern void delete_insns_since (rtx); | |
2036 | extern void mark_reg_pointer (rtx, int); | |
2037 | extern void mark_user_reg (rtx); | |
2038 | extern void reset_used_flags (rtx); | |
2c07f13b | 2039 | extern void set_used_flags (rtx); |
0c20a65f AJ |
2040 | extern void reorder_insns (rtx, rtx, rtx); |
2041 | extern void reorder_insns_nobb (rtx, rtx, rtx); | |
2042 | extern int get_max_uid (void); | |
2043 | extern int in_sequence_p (void); | |
2044 | extern void force_next_line_note (void); | |
2045 | extern void init_emit (void); | |
2046 | extern void init_emit_once (int); | |
2047 | extern void push_topmost_sequence (void); | |
2048 | extern void pop_topmost_sequence (void); | |
2049 | extern int subreg_realpart_p (rtx); | |
2050 | extern void reverse_comparison (rtx); | |
2051 | extern void set_new_first_and_last_insn (rtx, rtx); | |
0c20a65f AJ |
2052 | extern void set_new_last_label_num (int); |
2053 | extern void unshare_all_rtl_again (rtx); | |
2c07f13b JH |
2054 | extern void unshare_all_rtl_in_chain (rtx); |
2055 | extern void verify_rtl_sharing (void); | |
0c20a65f AJ |
2056 | extern void set_first_insn (rtx); |
2057 | extern void set_last_insn (rtx); | |
2058 | extern void link_cc0_insns (rtx); | |
2059 | extern void add_insn (rtx); | |
2060 | extern void add_insn_before (rtx, rtx); | |
2061 | extern void add_insn_after (rtx, rtx); | |
2062 | extern void remove_insn (rtx); | |
2063 | extern void reorder_insns_with_line_notes (rtx, rtx, rtx); | |
2064 | extern void emit_insn_after_with_line_notes (rtx, rtx, rtx); | |
2065 | extern enum rtx_code classify_insn (rtx); | |
2066 | extern rtx emit (rtx); | |
a11759a3 JR |
2067 | /* Query and clear/ restore no_line_numbers. This is used by the |
2068 | switch / case handling in stmt.c to give proper line numbers in | |
2069 | warnings about unreachable code. */ | |
0c20a65f AJ |
2070 | int force_line_numbers (void); |
2071 | void restore_line_number_status (int old_value); | |
2072 | extern void renumber_insns (FILE *); | |
2073 | extern void remove_unnecessary_notes (void); | |
2074 | extern rtx delete_insn (rtx); | |
2075 | extern void delete_insn_chain (rtx, rtx); | |
2076 | extern rtx unlink_insn_chain (rtx, rtx); | |
2077 | extern rtx delete_insn_and_edges (rtx); | |
2078 | extern void delete_insn_chain_and_edges (rtx, rtx); | |
ac957f13 | 2079 | |
ac957f13 | 2080 | /* In combine.c */ |
79a490a9 AJ |
2081 | extern int combine_instructions (rtx, unsigned int); |
2082 | extern unsigned int extended_count (rtx, enum machine_mode, int); | |
2083 | extern rtx remove_death (unsigned int, rtx); | |
ac957f13 | 2084 | #ifdef BUFSIZ |
79a490a9 AJ |
2085 | extern void dump_combine_stats (FILE *); |
2086 | extern void dump_combine_total_stats (FILE *); | |
ac957f13 | 2087 | #endif |
62551c66 | 2088 | /* In web.c */ |
80fcc7bc | 2089 | extern void web_main (void); |
ac957f13 | 2090 | |
eebedaa5 | 2091 | /* In sched.c. */ |
ac957f13 | 2092 | #ifdef BUFSIZ |
0c20a65f AJ |
2093 | extern void schedule_insns (FILE *); |
2094 | extern void schedule_ebbs (FILE *); | |
ac957f13 | 2095 | #endif |
0c20a65f | 2096 | extern void fix_sched_param (const char *, const char *); |
ac957f13 JL |
2097 | |
2098 | /* In print-rtl.c */ | |
47c10e9b | 2099 | extern const char *print_rtx_head; |
0c20a65f AJ |
2100 | extern void debug_rtx (rtx); |
2101 | extern void debug_rtx_list (rtx, int); | |
2102 | extern void debug_rtx_range (rtx, rtx); | |
2103 | extern rtx debug_rtx_find (rtx, int); | |
ac957f13 | 2104 | #ifdef BUFSIZ |
0c20a65f AJ |
2105 | extern void print_mem_expr (FILE *, tree); |
2106 | extern void print_rtl (FILE *, rtx); | |
2107 | extern void print_simple_rtl (FILE *, rtx); | |
2108 | extern int print_rtl_single (FILE *, rtx); | |
2109 | extern void print_inline_rtx (FILE *, rtx, int); | |
ac957f13 JL |
2110 | #endif |
2111 | ||
2112 | /* In loop.c */ | |
0c20a65f AJ |
2113 | extern void init_loop (void); |
2114 | extern rtx libcall_other_reg (rtx, rtx); | |
ac957f13 | 2115 | #ifdef BUFSIZ |
0c20a65f | 2116 | extern void loop_optimize (rtx, FILE *, int); |
ac957f13 | 2117 | #endif |
fe3ad572 | 2118 | extern void branch_target_load_optimize (rtx, bool); |
0c20a65f | 2119 | extern void record_excess_regs (rtx, rtx, rtx *); |
ac957f13 JL |
2120 | |
2121 | /* In function.c */ | |
0c20a65f AJ |
2122 | extern void reposition_prologue_and_epilogue_notes (rtx); |
2123 | extern void thread_prologue_and_epilogue_insns (rtx); | |
2124 | extern int prologue_epilogue_contains (rtx); | |
2125 | extern int sibcall_epilogue_contains (rtx); | |
2126 | extern void preserve_rtl_expr_result (rtx); | |
2127 | extern void mark_temp_addr_taken (rtx); | |
2128 | extern void update_temp_slot_address (rtx, rtx); | |
2129 | extern void purge_addressof (rtx); | |
2130 | extern void purge_hard_subreg_sets (rtx); | |
ac957f13 | 2131 | |
ac957f13 | 2132 | /* In stmt.c */ |
0cea056b | 2133 | extern void set_file_and_line_for_stmt (location_t); |
0c20a65f | 2134 | extern void expand_null_return (void); |
6e3077c6 | 2135 | extern void expand_naked_return (void); |
0c20a65f AJ |
2136 | extern void emit_jump (rtx); |
2137 | extern int preserve_subexpressions_p (void); | |
ac957f13 JL |
2138 | |
2139 | /* In expr.c */ | |
0c20a65f AJ |
2140 | extern rtx move_by_pieces (rtx, rtx, unsigned HOST_WIDE_INT, |
2141 | unsigned int, int); | |
2e245dac | 2142 | |
ac957f13 | 2143 | /* In flow.c */ |
0c20a65f AJ |
2144 | extern void recompute_reg_usage (rtx, int); |
2145 | extern int initialize_uninitialized_subregs (void); | |
2146 | extern void delete_dead_jumptables (void); | |
ac957f13 | 2147 | #ifdef BUFSIZ |
0c20a65f AJ |
2148 | extern void print_rtl_with_bb (FILE *, rtx); |
2149 | extern void dump_flow_info (FILE *); | |
ac957f13 JL |
2150 | #endif |
2151 | ||
2152 | /* In expmed.c */ | |
0c20a65f AJ |
2153 | extern void init_expmed (void); |
2154 | extern void expand_inc (rtx, rtx); | |
2155 | extern void expand_dec (rtx, rtx); | |
2156 | extern rtx expand_mult_highpart (enum machine_mode, rtx, | |
2157 | unsigned HOST_WIDE_INT, rtx, int, int); | |
ac957f13 | 2158 | |
50b2596f | 2159 | /* In gcse.c */ |
0c20a65f AJ |
2160 | extern bool can_copy_p (enum machine_mode); |
2161 | extern rtx fis_get_condition (rtx); | |
50b2596f | 2162 | #ifdef BUFSIZ |
0c20a65f AJ |
2163 | extern int gcse_main (rtx, FILE *); |
2164 | extern int bypass_jumps (FILE *); | |
50b2596f KG |
2165 | #endif |
2166 | ||
ac957f13 | 2167 | /* In global.c */ |
0c20a65f | 2168 | extern void mark_elimination (int, int); |
ac957f13 | 2169 | #ifdef BUFSIZ |
0c20a65f AJ |
2170 | extern int global_alloc (FILE *); |
2171 | extern void dump_global_regs (FILE *); | |
ac957f13 | 2172 | #endif |
cab634f2 | 2173 | #ifdef HARD_CONST |
cff9f8d5 | 2174 | /* Yes, this ifdef is silly, but HARD_REG_SET is not always defined. */ |
0c20a65f | 2175 | extern void retry_global_alloc (int, HARD_REG_SET); |
cab634f2 | 2176 | #endif |
0c20a65f | 2177 | extern void build_insn_chain (rtx); |
ac957f13 JL |
2178 | |
2179 | /* In regclass.c */ | |
0c20a65f AJ |
2180 | extern int reg_classes_intersect_p (enum reg_class, enum reg_class); |
2181 | extern int reg_class_subset_p (enum reg_class, enum reg_class); | |
2182 | extern void globalize_reg (int); | |
28420116 | 2183 | extern void init_reg_modes_once (void); |
0c20a65f AJ |
2184 | extern void init_regs (void); |
2185 | extern void init_fake_stack_mems (void); | |
2186 | extern void init_reg_sets (void); | |
2187 | extern void regset_release_memory (void); | |
2188 | extern void regclass_init (void); | |
2189 | extern void regclass (rtx, int, FILE *); | |
2190 | extern void reg_scan (rtx, unsigned int, int); | |
2191 | extern void reg_scan_update (rtx, rtx, unsigned int); | |
2192 | extern void fix_register (const char *, int, int); | |
cff9f8d5 | 2193 | #ifdef HARD_CONST |
0c20a65f AJ |
2194 | extern void cannot_change_mode_set_regs (HARD_REG_SET *, |
2195 | enum machine_mode, unsigned int); | |
cff9f8d5 | 2196 | #endif |
0c20a65f AJ |
2197 | extern bool invalid_mode_change_p (unsigned int, enum reg_class, |
2198 | enum machine_mode); | |
cdadb1dd | 2199 | |
0c20a65f | 2200 | extern int delete_null_pointer_checks (rtx); |
a157febd | 2201 | |
50b2596f KG |
2202 | /* In regmove.c */ |
2203 | #ifdef BUFSIZ | |
0c20a65f | 2204 | extern void regmove_optimize (rtx, int, FILE *); |
50b2596f | 2205 | #endif |
0c20a65f | 2206 | extern void combine_stack_adjustments (void); |
50b2596f KG |
2207 | |
2208 | /* In reorg.c */ | |
2209 | #ifdef BUFSIZ | |
0c20a65f | 2210 | extern void dbr_schedule (rtx, FILE *); |
50b2596f KG |
2211 | #endif |
2212 | ||
ac957f13 JL |
2213 | /* In local-alloc.c */ |
2214 | #ifdef BUFSIZ | |
0c20a65f | 2215 | extern void dump_local_alloc (FILE *); |
ac957f13 | 2216 | #endif |
0c20a65f AJ |
2217 | extern int local_alloc (void); |
2218 | extern int function_invariant_p (rtx); | |
ac957f13 | 2219 | |
ac957f13 | 2220 | /* In profile.c */ |
0c20a65f AJ |
2221 | extern void init_branch_prob (void); |
2222 | extern void branch_prob (void); | |
2223 | extern void end_branch_prob (void); | |
ac957f13 JL |
2224 | |
2225 | /* In reg-stack.c */ | |
2226 | #ifdef BUFSIZ | |
0c20a65f | 2227 | extern bool reg_to_stack (rtx, FILE *); |
ac957f13 | 2228 | #endif |
ac957f13 | 2229 | |
ac957f13 | 2230 | /* In calls.c */ |
ebb1b59a BS |
2231 | enum libcall_type |
2232 | { | |
2233 | LCT_NORMAL = 0, | |
2234 | LCT_CONST = 1, | |
2235 | LCT_PURE = 2, | |
2236 | LCT_CONST_MAKE_BLOCK = 3, | |
695ee791 | 2237 | LCT_PURE_MAKE_BLOCK = 4, |
9555a122 | 2238 | LCT_NORETURN = 5, |
9d98f8f9 | 2239 | LCT_THROW = 6, |
9defc9b7 RH |
2240 | LCT_ALWAYS_RETURN = 7, |
2241 | LCT_RETURNS_TWICE = 8 | |
ebb1b59a BS |
2242 | }; |
2243 | ||
0c20a65f AJ |
2244 | extern void emit_library_call (rtx, enum libcall_type, enum machine_mode, int, |
2245 | ...); | |
2246 | extern rtx emit_library_call_value (rtx, rtx, enum libcall_type, | |
2247 | enum machine_mode, int, ...); | |
ac957f13 JL |
2248 | |
2249 | /* In unroll.c */ | |
0c20a65f | 2250 | extern int set_dominates_use (int, int, int, rtx, rtx); |
ac957f13 JL |
2251 | |
2252 | /* In varasm.c */ | |
0c20a65f AJ |
2253 | extern int in_data_section (void); |
2254 | extern void init_varasm_once (void); | |
ac957f13 JL |
2255 | |
2256 | /* In rtl.c */ | |
0c20a65f AJ |
2257 | extern void init_rtl (void); |
2258 | extern void traverse_md_constants (int (*) (void **, void *), void *); | |
c25c12b8 | 2259 | struct md_constant { char *name, *value; }; |
ac957f13 | 2260 | |
bcdaba58 | 2261 | #ifdef BUFSIZ |
0c20a65f AJ |
2262 | extern int read_skip_spaces (FILE *); |
2263 | extern rtx read_rtx (FILE *); | |
bcdaba58 RH |
2264 | #endif |
2265 | ||
2266 | extern const char *read_rtx_filename; | |
2267 | extern int read_rtx_lineno; | |
2268 | ||
987009bf ZW |
2269 | /* Redefine abort to report an internal error w/o coredump, and |
2270 | reporting the location of the error in the source file. This logic | |
2271 | is duplicated in rtl.h and tree.h because every file that needs the | |
2272 | special abort includes one or both. toplev.h gets too few files, | |
2273 | system.h gets too many. */ | |
2274 | ||
0c20a65f | 2275 | extern void fancy_abort (const char *, int, const char *) |
987009bf | 2276 | ATTRIBUTE_NORETURN; |
fbfc1192 | 2277 | #define abort() fancy_abort (__FILE__, __LINE__, __FUNCTION__) |
987009bf | 2278 | |
ac957f13 | 2279 | /* In alias.c */ |
4682ae04 AJ |
2280 | extern void clear_reg_alias_info (rtx); |
2281 | extern rtx canon_rtx (rtx); | |
2282 | extern int true_dependence (rtx, enum machine_mode, rtx, int (*)(rtx, int)); | |
2283 | extern rtx get_addr (rtx); | |
2284 | extern int canon_true_dependence (rtx, enum machine_mode, rtx, rtx, | |
2285 | int (*)(rtx, int)); | |
2286 | extern int read_dependence (rtx, rtx); | |
2287 | extern int anti_dependence (rtx, rtx); | |
2288 | extern int output_dependence (rtx, rtx); | |
d2399d75 | 2289 | extern int unchanging_anti_dependence (rtx, rtx); |
4682ae04 AJ |
2290 | extern void mark_constant_function (void); |
2291 | extern void init_alias_once (void); | |
2292 | extern void init_alias_analysis (void); | |
2293 | extern void end_alias_analysis (void); | |
2294 | extern rtx addr_side_effect_eval (rtx, int, int); | |
2295 | extern bool memory_modified_in_insn_p (rtx, rtx); | |
2296 | extern rtx find_base_term (rtx); | |
4c649323 | 2297 | |
0a1c58a2 JL |
2298 | /* In sibcall.c */ |
2299 | typedef enum { | |
2300 | sibcall_use_normal = 1, | |
2301 | sibcall_use_tail_recursion, | |
2302 | sibcall_use_sibcall | |
2303 | } sibcall_use_t; | |
2304 | ||
0c20a65f AJ |
2305 | extern void optimize_sibling_and_tail_recursive_calls (void); |
2306 | extern void replace_call_placeholder (rtx, sibcall_use_t); | |
0a1c58a2 | 2307 | |
21b2cd73 | 2308 | #ifdef STACK_REGS |
0c20a65f | 2309 | extern int stack_regs_mentioned (rtx insn); |
21b2cd73 JH |
2310 | #endif |
2311 | ||
a157febd | 2312 | /* In toplev.c */ |
e2500fed | 2313 | extern GTY(()) rtx stack_limit_rtx; |
dfdb644f | 2314 | |
7b82b5da | 2315 | /* In regrename.c */ |
0c20a65f AJ |
2316 | extern void regrename_optimize (void); |
2317 | extern void copyprop_hardreg_forward (void); | |
7b82b5da | 2318 | |
4db384c9 | 2319 | /* In ifcvt.c */ |
0c20a65f | 2320 | extern void if_convert (int); |
2ea64f10 | 2321 | |
4db384c9 | 2322 | /* In predict.c */ |
0c20a65f AJ |
2323 | extern void invert_br_probabilities (rtx); |
2324 | extern bool expensive_function_p (int); | |
5c856b23 | 2325 | /* In tracer.c */ |
0c20a65f | 2326 | extern void tracer (void); |
cff9f8d5 | 2327 | |
88657302 | 2328 | #endif /* ! GCC_RTL_H */ |