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bccafa26 | 1 | /* Register Transfer Language (RTL) definitions for GCC |
4dc5882f | 2 | Copyright (C) 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
0a98b6d9 | 3 | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 |
1a6a0f2a | 4 | Free Software Foundation, Inc. |
759bebca | 5 | |
f12b58b3 | 6 | This file is part of GCC. |
759bebca | 7 | |
f12b58b3 | 8 | GCC is free software; you can redistribute it and/or modify it under |
9 | the terms of the GNU General Public License as published by the Free | |
8c4c00c1 | 10 | Software Foundation; either version 3, or (at your option) any later |
f12b58b3 | 11 | version. |
759bebca | 12 | |
f12b58b3 | 13 | GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
14 | WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
15 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
16 | for more details. | |
759bebca | 17 | |
18 | You should have received a copy of the GNU General Public License | |
8c4c00c1 | 19 | along with GCC; see the file COPYING3. If not see |
20 | <http://www.gnu.org/licenses/>. */ | |
759bebca | 21 | |
2a281353 | 22 | #ifndef GCC_RTL_H |
23 | #define GCC_RTL_H | |
605f66ec | 24 | |
fdef3332 | 25 | #include "statistics.h" |
759bebca | 26 | #include "machmode.h" |
0a3b3d88 | 27 | #include "input.h" |
e8aaae4e | 28 | #include "real.h" |
f2d0e9f1 | 29 | #include "vec.h" |
e397ad8e | 30 | #include "fixed-value.h" |
32c2fdea | 31 | #include "alias.h" |
09279218 | 32 | #include "hashtab.h" |
4a020a8c | 33 | #include "flags.h" |
759bebca | 34 | |
c6259b83 | 35 | /* Value used by some passes to "recognize" noop moves as valid |
a7dce381 | 36 | instructions. */ |
1805c35c | 37 | #define NOOP_MOVE_INSN_CODE INT_MAX |
38 | ||
759bebca | 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 | ||
4bbea254 | 48 | LAST_AND_UNUSED_RTX_CODE}; /* A convenient way to get a value for |
759bebca | 49 | NUM_RTX_CODE. |
4bbea254 | 50 | Assumes default enum value assignment. */ |
759bebca | 51 | |
ee65118b | 52 | /* The cast here, saves many elsewhere. */ |
47c251e5 | 53 | #define NUM_RTX_CODE ((int) LAST_AND_UNUSED_RTX_CODE) |
ee65118b | 54 | |
55 | /* Similar, but since generator files get more entries... */ | |
56 | #ifdef GENERATOR_FILE | |
57 | # define NON_GENERATOR_NUM_RTX_CODE ((int) MATCH_OPERAND) | |
58 | #endif | |
759bebca | 59 | |
6720e96c | 60 | /* Register Transfer Language EXPRESSIONS CODE CLASSES */ |
61 | ||
62 | enum rtx_class { | |
63 | /* We check bit 0-1 of some rtx class codes in the predicates below. */ | |
64 | ||
65 | /* Bit 0 = comparison if 0, arithmetic is 1 | |
66 | Bit 1 = 1 if commutative. */ | |
67 | RTX_COMPARE, /* 0 */ | |
68 | RTX_COMM_COMPARE, | |
69 | RTX_BIN_ARITH, | |
70 | RTX_COMM_ARITH, | |
71 | ||
72 | /* Must follow the four preceding values. */ | |
73 | RTX_UNARY, /* 4 */ | |
74 | ||
75 | RTX_EXTRA, | |
76 | RTX_MATCH, | |
77 | RTX_INSN, | |
78 | ||
79 | /* Bit 0 = 1 if constant. */ | |
80 | RTX_OBJ, /* 8 */ | |
81 | RTX_CONST_OBJ, | |
82 | ||
83 | RTX_TERNARY, | |
84 | RTX_BITFIELD_OPS, | |
85 | RTX_AUTOINC | |
86 | }; | |
87 | ||
88 | #define RTX_OBJ_MASK (~1) | |
89 | #define RTX_OBJ_RESULT (RTX_OBJ & RTX_OBJ_MASK) | |
90 | #define RTX_COMPARE_MASK (~1) | |
91 | #define RTX_COMPARE_RESULT (RTX_COMPARE & RTX_COMPARE_MASK) | |
92 | #define RTX_ARITHMETIC_MASK (~1) | |
93 | #define RTX_ARITHMETIC_RESULT (RTX_COMM_ARITH & RTX_ARITHMETIC_MASK) | |
94 | #define RTX_BINARY_MASK (~3) | |
95 | #define RTX_BINARY_RESULT (RTX_COMPARE & RTX_BINARY_MASK) | |
96 | #define RTX_COMMUTATIVE_MASK (~2) | |
97 | #define RTX_COMMUTATIVE_RESULT (RTX_COMM_COMPARE & RTX_COMMUTATIVE_MASK) | |
98 | #define RTX_NON_COMMUTATIVE_RESULT (RTX_COMPARE & RTX_COMMUTATIVE_MASK) | |
6720e96c | 99 | |
1af5f160 | 100 | extern const unsigned char rtx_length[NUM_RTX_CODE]; |
a92771b8 | 101 | #define GET_RTX_LENGTH(CODE) (rtx_length[(int) (CODE)]) |
759bebca | 102 | |
1af5f160 | 103 | extern const char * const rtx_name[NUM_RTX_CODE]; |
a92771b8 | 104 | #define GET_RTX_NAME(CODE) (rtx_name[(int) (CODE)]) |
759bebca | 105 | |
1af5f160 | 106 | extern const char * const rtx_format[NUM_RTX_CODE]; |
a92771b8 | 107 | #define GET_RTX_FORMAT(CODE) (rtx_format[(int) (CODE)]) |
759bebca | 108 | |
6720e96c | 109 | extern const enum rtx_class rtx_class[NUM_RTX_CODE]; |
a92771b8 | 110 | #define GET_RTX_CLASS(CODE) (rtx_class[(int) (CODE)]) |
c849df63 | 111 | |
f2d0e9f1 | 112 | extern const unsigned char rtx_code_size[NUM_RTX_CODE]; |
c849df63 | 113 | extern const unsigned char rtx_next[NUM_RTX_CODE]; |
759bebca | 114 | \f |
9eaab178 | 115 | /* The flags and bitfields of an ADDR_DIFF_VEC. BASE is the base label |
116 | relative to which the offsets are calculated, as explained in rtl.def. */ | |
117 | typedef struct | |
118 | { | |
119 | /* Set at the start of shorten_branches - ONLY WHEN OPTIMIZING - : */ | |
120 | unsigned min_align: 8; | |
121 | /* Flags: */ | |
122 | unsigned base_after_vec: 1; /* BASE is after the ADDR_DIFF_VEC. */ | |
c6259b83 | 123 | unsigned min_after_vec: 1; /* minimum address target label is |
124 | after the ADDR_DIFF_VEC. */ | |
125 | unsigned max_after_vec: 1; /* maximum address target label is | |
126 | after the ADDR_DIFF_VEC. */ | |
127 | unsigned min_after_base: 1; /* minimum address target label is | |
128 | after BASE. */ | |
129 | unsigned max_after_base: 1; /* maximum address target label is | |
130 | after BASE. */ | |
9eaab178 | 131 | /* Set by the actual branch shortening process - ONLY WHEN OPTIMIZING - : */ |
132 | unsigned offset_unsigned: 1; /* offsets have to be treated as unsigned. */ | |
133 | unsigned : 2; | |
134 | unsigned scale : 8; | |
135 | } addr_diff_vec_flags; | |
136 | ||
c6259b83 | 137 | /* Structure used to describe the attributes of a MEM. These are hashed |
138 | so MEMs that the same attributes share a data structure. This means | |
6d58bcba | 139 | they cannot be modified in place. */ |
fb1e4f4a | 140 | typedef struct GTY(()) mem_attrs |
c6259b83 | 141 | { |
6d58bcba | 142 | /* The expression that the MEM accesses, or null if not known. |
143 | This expression might be larger than the memory reference itself. | |
144 | (In other words, the MEM might access only part of the object.) */ | |
145 | tree expr; | |
146 | ||
147 | /* The offset of the memory reference from the start of EXPR. | |
148 | Only valid if OFFSET_KNOWN_P. */ | |
149 | HOST_WIDE_INT offset; | |
150 | ||
151 | /* The size of the memory reference in bytes. Only valid if | |
152 | SIZE_KNOWN_P. */ | |
153 | HOST_WIDE_INT size; | |
154 | ||
155 | /* The alias set of the memory reference. */ | |
156 | alias_set_type alias; | |
157 | ||
158 | /* The alignment of the reference in bits. Always a multiple of | |
159 | BITS_PER_UNIT. Note that EXPR may have a stricter alignment | |
160 | than the memory reference itself. */ | |
161 | unsigned int align; | |
162 | ||
163 | /* The address space that the memory reference uses. */ | |
164 | unsigned char addrspace; | |
165 | ||
166 | /* True if OFFSET is known. */ | |
167 | bool offset_known_p; | |
168 | ||
169 | /* True if SIZE is known. */ | |
170 | bool size_known_p; | |
c6259b83 | 171 | } mem_attrs; |
172 | ||
ca74b940 | 173 | /* Structure used to describe the attributes of a REG in similar way as |
80c70e76 | 174 | mem_attrs does for MEM above. Note that the OFFSET field is calculated |
175 | in the same way as for mem_attrs, rather than in the same way as a | |
176 | SUBREG_BYTE. For example, if a big-endian target stores a byte | |
177 | object in the low part of a 4-byte register, the OFFSET field | |
178 | will be -3 rather than 0. */ | |
ca74b940 | 179 | |
fb1e4f4a | 180 | typedef struct GTY(()) reg_attrs { |
ca74b940 | 181 | tree decl; /* decl corresponding to REG. */ |
182 | HOST_WIDE_INT offset; /* Offset from start of DECL. */ | |
183 | } reg_attrs; | |
184 | ||
759bebca | 185 | /* Common union for an element of an rtx. */ |
186 | ||
c849df63 | 187 | union rtunion_def |
759bebca | 188 | { |
993d9e55 | 189 | int rt_int; |
190 | unsigned int rt_uint; | |
191 | const char *rt_str; | |
192 | rtx rt_rtx; | |
193 | rtvec rt_rtvec; | |
194 | enum machine_mode rt_type; | |
9eaab178 | 195 | addr_diff_vec_flags rt_addr_diff_vec_flags; |
1617c276 | 196 | struct cselib_val_struct *rt_cselib; |
993d9e55 | 197 | tree rt_tree; |
161dfa6e | 198 | basic_block rt_bb; |
993d9e55 | 199 | mem_attrs *rt_mem; |
200 | reg_attrs *rt_reg; | |
7c266bb1 | 201 | struct constant_descriptor_rtx *rt_constant; |
46346a52 | 202 | struct dw_cfi_struct *rt_cfi; |
c849df63 | 203 | }; |
204 | typedef union rtunion_def rtunion; | |
759bebca | 205 | |
f2d0e9f1 | 206 | /* This structure remembers the position of a SYMBOL_REF within an |
207 | object_block structure. A SYMBOL_REF only provides this information | |
6617cbc1 | 208 | if SYMBOL_REF_HAS_BLOCK_INFO_P is true. */ |
fb1e4f4a | 209 | struct GTY(()) block_symbol { |
f2d0e9f1 | 210 | /* The usual SYMBOL_REF fields. */ |
211 | rtunion GTY ((skip)) fld[3]; | |
212 | ||
213 | /* The block that contains this object. */ | |
214 | struct object_block *block; | |
215 | ||
216 | /* The offset of this object from the start of its block. It is negative | |
217 | if the symbol has not yet been assigned an offset. */ | |
218 | HOST_WIDE_INT offset; | |
219 | }; | |
220 | ||
f2d0e9f1 | 221 | /* Describes a group of objects that are to be placed together in such |
222 | a way that their relative positions are known. */ | |
fb1e4f4a | 223 | struct GTY(()) object_block { |
f2d0e9f1 | 224 | /* The section in which these objects should be placed. */ |
225 | section *sect; | |
226 | ||
227 | /* The alignment of the first object, measured in bits. */ | |
228 | unsigned int alignment; | |
229 | ||
230 | /* The total size of the objects, measured in bytes. */ | |
231 | HOST_WIDE_INT size; | |
232 | ||
233 | /* The SYMBOL_REFs for each object. The vector is sorted in | |
234 | order of increasing offset and the following conditions will | |
235 | hold for each element X: | |
236 | ||
6617cbc1 | 237 | SYMBOL_REF_HAS_BLOCK_INFO_P (X) |
f2d0e9f1 | 238 | !SYMBOL_REF_ANCHOR_P (X) |
239 | SYMBOL_REF_BLOCK (X) == [address of this structure] | |
240 | SYMBOL_REF_BLOCK_OFFSET (X) >= 0. */ | |
f1f41a6c | 241 | vec<rtx, va_gc> *objects; |
f2d0e9f1 | 242 | |
243 | /* All the anchor SYMBOL_REFs used to address these objects, sorted | |
244 | in order of increasing offset, and then increasing TLS model. | |
245 | The following conditions will hold for each element X in this vector: | |
246 | ||
6617cbc1 | 247 | SYMBOL_REF_HAS_BLOCK_INFO_P (X) |
f2d0e9f1 | 248 | SYMBOL_REF_ANCHOR_P (X) |
249 | SYMBOL_REF_BLOCK (X) == [address of this structure] | |
250 | SYMBOL_REF_BLOCK_OFFSET (X) >= 0. */ | |
f1f41a6c | 251 | vec<rtx, va_gc> *anchors; |
f2d0e9f1 | 252 | }; |
253 | ||
759bebca | 254 | /* RTL expression ("rtx"). */ |
255 | ||
fb1e4f4a | 256 | struct GTY((chain_next ("RTX_NEXT (&%h)"), |
ba72912a | 257 | chain_prev ("RTX_PREV (&%h)"), variable_size)) rtx_def { |
759bebca | 258 | /* The kind of expression this is. */ |
488c4206 | 259 | ENUM_BITFIELD(rtx_code) code: 16; |
bfec6070 | 260 | |
759bebca | 261 | /* The kind of value the expression has. */ |
488c4206 | 262 | ENUM_BITFIELD(machine_mode) mode : 8; |
263 | ||
e7f75e15 | 264 | /* 1 in a MEM if we should keep the alias set for this mem unchanged |
265 | when we access a component. | |
266 | 1 in a CALL_INSN if it is a sibling call. | |
a7ae1e59 | 267 | 1 in a SET that is for a return. |
72fdb379 | 268 | In a CODE_LABEL, part of the two-bit alternate entry field. |
bb75e83f | 269 | 1 in a CONCAT is VAL_EXPR_IS_COPIED in var-tracking.c. |
270 | 1 in a VALUE is SP_BASED_VALUE_P in cselib.c. */ | |
759bebca | 271 | unsigned int jump : 1; |
1ed8ccdb | 272 | /* In a CODE_LABEL, part of the two-bit alternate entry field. |
48e1416a | 273 | 1 in a MEM if it cannot trap. |
9c2a0c05 | 274 | 1 in a CALL_INSN logically equivalent to |
275 | ECF_LOOPING_CONST_OR_PURE and DECL_LOOPING_CONST_OR_PURE_P. */ | |
759bebca | 276 | unsigned int call : 1; |
e7f75e15 | 277 | /* 1 in a REG, MEM, or CONCAT if the value is set at most once, anywhere. |
088c4b7b | 278 | 1 in a SUBREG used for SUBREG_PROMOTED_UNSIGNED_P. |
759bebca | 279 | 1 in a SYMBOL_REF if it addresses something in the per-function |
280 | constants pool. | |
48e1416a | 281 | 1 in a CALL_INSN logically equivalent to ECF_CONST and TREE_READONLY. |
9c2a0c05 | 282 | 1 in a NOTE, or EXPR_LIST for a const call. |
72fdb379 | 283 | 1 in a JUMP_INSN of an annulling branch. |
284 | 1 in a CONCAT is VAL_EXPR_IS_CLOBBERED in var-tracking.c. | |
ae72d5b2 | 285 | 1 in a preserved VALUE is PRESERVED_VALUE_P in cselib.c. |
286 | 1 in a clobber temporarily created for LRA. */ | |
759bebca | 287 | unsigned int unchanging : 1; |
e7f75e15 | 288 | /* 1 in a MEM or ASM_OPERANDS expression if the memory reference is volatile. |
289 | 1 in an INSN, CALL_INSN, JUMP_INSN, CODE_LABEL, BARRIER, or NOTE | |
290 | if it has been deleted. | |
291 | 1 in a REG expression if corresponds to a variable declared by the user, | |
759bebca | 292 | 0 for an internally generated temporary. |
088c4b7b | 293 | 1 in a SUBREG used for SUBREG_PROMOTED_UNSIGNED_P. |
19d2fe05 | 294 | 1 in a LABEL_REF, REG_LABEL_TARGET or REG_LABEL_OPERAND note for a |
295 | non-local label. | |
6540132c | 296 | In a SYMBOL_REF, this flag is used for machine-specific purposes. |
297 | In a PREFETCH, this flag indicates that it should be considered a scheduling | |
72fdb379 | 298 | barrier. |
299 | 1 in a CONCAT is VAL_NEEDS_RESOLUTION in var-tracking.c. */ | |
759bebca | 300 | unsigned int volatil : 1; |
402f6a9e | 301 | /* 1 in a REG if the register is used only in exit code a loop. |
f220c8f0 | 302 | 1 in a SUBREG expression if was generated from a variable with a |
3e8eba79 | 303 | promoted mode. |
759bebca | 304 | 1 in a CODE_LABEL if the label is used for nonlocal gotos |
305 | and must not be deleted even if its count is zero. | |
f372955c | 306 | 1 in an INSN, JUMP_INSN or CALL_INSN if this insn must be scheduled |
307 | together with the preceding insn. Valid only within sched. | |
759bebca | 308 | 1 in an INSN, JUMP_INSN, or CALL_INSN if insn is in a delay slot and |
309 | from the target of a branch. Valid from reorg until end of compilation; | |
402f6a9e | 310 | cleared before used. |
311 | ||
312 | The name of the field is historical. It used to be used in MEMs | |
313 | to record whether the MEM accessed part of a structure. */ | |
759bebca | 314 | unsigned int in_struct : 1; |
e7f75e15 | 315 | /* At the end of RTL generation, 1 if this rtx is used. This is used for |
316 | copying shared structure. See `unshare_all_rtl'. | |
f220c8f0 | 317 | In a REG, this is not needed for that purpose, and used instead |
759bebca | 318 | in `leaf_renumber_regs_insn'. |
e7f75e15 | 319 | 1 in a SYMBOL_REF, means that emit_library_call |
72fdb379 | 320 | has used it as the function. |
321 | 1 in a CONCAT is VAL_HOLDS_TRACK_EXPR in var-tracking.c. | |
322 | 1 in a VALUE or DEBUG_EXPR is VALUE_RECURSED_INTO in var-tracking.c. */ | |
759bebca | 323 | unsigned int used : 1; |
fa19b467 | 324 | /* 1 in an INSN or a SET if this rtx is related to the call frame, |
6a0934dd | 325 | either changing how we compute the frame address or saving and |
f220c8f0 | 326 | restoring registers in the prologue and epilogue. |
8d350e69 | 327 | 1 in a REG or MEM if it is a pointer. |
abf74c5b | 328 | 1 in a SYMBOL_REF if it addresses something in the per-function |
72fdb379 | 329 | constant string pool. |
330 | 1 in a VALUE is VALUE_CHANGED in var-tracking.c. */ | |
df78b73b | 331 | unsigned frame_related : 1; |
4ee9c684 | 332 | /* 1 in a REG or PARALLEL that is the current function's return value. |
48e1416a | 333 | 1 in a SYMBOL_REF for a weak symbol. |
72fdb379 | 334 | 1 in a CALL_INSN logically equivalent to ECF_PURE and DECL_PURE_P. |
335 | 1 in a CONCAT is VAL_EXPR_HAS_REVERSE in var-tracking.c. | |
336 | 1 in a VALUE or DEBUG_EXPR is NO_LOC_P in var-tracking.c. */ | |
4ee9c684 | 337 | unsigned return_val : 1; |
05513b45 | 338 | |
759bebca | 339 | /* The first element of the operands of this rtx. |
340 | The number of operands and their types are controlled | |
341 | by the `code' field, according to rtl.def. */ | |
bf6b5685 | 342 | union u { |
343 | rtunion fld[1]; | |
344 | HOST_WIDE_INT hwint[1]; | |
f2d0e9f1 | 345 | struct block_symbol block_sym; |
e8aaae4e | 346 | struct real_value rv; |
e397ad8e | 347 | struct fixed_value fv; |
bf6b5685 | 348 | } GTY ((special ("rtx_def"), desc ("GET_CODE (&%0)"))) u; |
6a3e3d6d | 349 | }; |
759bebca | 350 | |
bf6b5685 | 351 | /* The size in bytes of an rtx header (code, mode and flags). */ |
352 | #define RTX_HDR_SIZE offsetof (struct rtx_def, u) | |
353 | ||
354 | /* The size in bytes of an rtx with code CODE. */ | |
f2d0e9f1 | 355 | #define RTX_CODE_SIZE(CODE) rtx_code_size[CODE] |
bf6b5685 | 356 | |
759bebca | 357 | #define NULL_RTX (rtx) 0 |
358 | ||
c849df63 | 359 | /* The "next" and "previous" RTX, relative to this one. */ |
360 | ||
361 | #define RTX_NEXT(X) (rtx_next[GET_CODE (X)] == 0 ? NULL \ | |
362 | : *(rtx *)(((char *)X) + rtx_next[GET_CODE (X)])) | |
363 | ||
364 | /* FIXME: the "NEXT_INSN (PREV_INSN (X)) == X" condition shouldn't be needed. | |
365 | */ | |
6d7dc5b9 | 366 | #define RTX_PREV(X) ((INSN_P (X) \ |
367 | || NOTE_P (X) \ | |
368 | || BARRIER_P (X) \ | |
369 | || LABEL_P (X)) \ | |
c849df63 | 370 | && PREV_INSN (X) != NULL \ |
371 | && NEXT_INSN (PREV_INSN (X)) == X \ | |
372 | ? PREV_INSN (X) : NULL) | |
373 | ||
759bebca | 374 | /* Define macros to access the `code' field of the rtx. */ |
375 | ||
0fd4500a | 376 | #define GET_CODE(RTX) ((enum rtx_code) (RTX)->code) |
2aea9e36 | 377 | #define PUT_CODE(RTX, CODE) ((RTX)->code = (CODE)) |
759bebca | 378 | |
0fd4500a | 379 | #define GET_MODE(RTX) ((enum machine_mode) (RTX)->mode) |
2aea9e36 | 380 | #define PUT_MODE(RTX, MODE) ((RTX)->mode = (MODE)) |
759bebca | 381 | |
759bebca | 382 | /* RTL vector. These appear inside RTX's when there is a need |
383 | for a variable number of things. The principle use is inside | |
384 | PARALLEL expressions. */ | |
385 | ||
ba72912a | 386 | struct GTY((variable_size)) rtvec_def { |
0dbd1c74 | 387 | int num_elem; /* number of elements */ |
1f3233d1 | 388 | rtx GTY ((length ("%h.num_elem"))) elem[1]; |
6a3e3d6d | 389 | }; |
759bebca | 390 | |
391 | #define NULL_RTVEC (rtvec) 0 | |
392 | ||
393 | #define GET_NUM_ELEM(RTVEC) ((RTVEC)->num_elem) | |
0dbd1c74 | 394 | #define PUT_NUM_ELEM(RTVEC, NUM) ((RTVEC)->num_elem = (NUM)) |
759bebca | 395 | |
e75781d3 | 396 | /* Predicate yielding nonzero iff X is an rtx for a register. */ |
759bebca | 397 | #define REG_P(X) (GET_CODE (X) == REG) |
398 | ||
e75781d3 | 399 | /* Predicate yielding nonzero iff X is an rtx for a memory location. */ |
400 | #define MEM_P(X) (GET_CODE (X) == MEM) | |
401 | ||
0349edce | 402 | /* Match CONST_*s that can represent compile-time constant integers. */ |
403 | #define CASE_CONST_SCALAR_INT \ | |
404 | case CONST_INT: \ | |
405 | case CONST_DOUBLE | |
406 | ||
407 | /* Match CONST_*s for which pointer equality corresponds to value equality. */ | |
408 | #define CASE_CONST_UNIQUE \ | |
409 | case CONST_INT: \ | |
410 | case CONST_DOUBLE: \ | |
411 | case CONST_FIXED | |
412 | ||
413 | /* Match all CONST_* rtxes. */ | |
414 | #define CASE_CONST_ANY \ | |
415 | case CONST_INT: \ | |
416 | case CONST_DOUBLE: \ | |
417 | case CONST_FIXED: \ | |
418 | case CONST_VECTOR | |
419 | ||
9ca2c29a | 420 | /* Predicate yielding nonzero iff X is an rtx for a constant integer. */ |
97590808 | 421 | #define CONST_INT_P(X) (GET_CODE (X) == CONST_INT) |
422 | ||
fdbe20f6 | 423 | /* Predicate yielding nonzero iff X is an rtx for a constant fixed-point. */ |
424 | #define CONST_FIXED_P(X) (GET_CODE (X) == CONST_FIXED) | |
425 | ||
33274180 | 426 | /* Predicate yielding true iff X is an rtx for a double-int |
427 | or floating point constant. */ | |
428 | #define CONST_DOUBLE_P(X) (GET_CODE (X) == CONST_DOUBLE) | |
429 | ||
78f1962f | 430 | /* Predicate yielding true iff X is an rtx for a double-int. */ |
431 | #define CONST_DOUBLE_AS_INT_P(X) \ | |
432 | (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) == VOIDmode) | |
433 | ||
efa08fc2 | 434 | /* Predicate yielding true iff X is an rtx for a integer const. */ |
435 | #define CONST_SCALAR_INT_P(X) \ | |
436 | (CONST_INT_P (X) || CONST_DOUBLE_AS_INT_P (X)) | |
437 | ||
78f1962f | 438 | /* Predicate yielding true iff X is an rtx for a double-int. */ |
439 | #define CONST_DOUBLE_AS_FLOAT_P(X) \ | |
440 | (GET_CODE (X) == CONST_DOUBLE && GET_MODE (X) != VOIDmode) | |
441 | ||
1deb248e | 442 | /* Predicate yielding nonzero iff X is a label insn. */ |
443 | #define LABEL_P(X) (GET_CODE (X) == CODE_LABEL) | |
444 | ||
445 | /* Predicate yielding nonzero iff X is a jump insn. */ | |
446 | #define JUMP_P(X) (GET_CODE (X) == JUMP_INSN) | |
447 | ||
e75781d3 | 448 | /* Predicate yielding nonzero iff X is a call insn. */ |
449 | #define CALL_P(X) (GET_CODE (X) == CALL_INSN) | |
450 | ||
451 | /* Predicate yielding nonzero iff X is an insn that cannot jump. */ | |
452 | #define NONJUMP_INSN_P(X) (GET_CODE (X) == INSN) | |
453 | ||
9845d120 | 454 | /* Predicate yielding nonzero iff X is a debug note/insn. */ |
455 | #define DEBUG_INSN_P(X) (GET_CODE (X) == DEBUG_INSN) | |
456 | ||
457 | /* Predicate yielding nonzero iff X is an insn that is not a debug insn. */ | |
458 | #define NONDEBUG_INSN_P(X) (INSN_P (X) && !DEBUG_INSN_P (X)) | |
459 | ||
460 | /* Nonzero if DEBUG_INSN_P may possibly hold. */ | |
4a020a8c | 461 | #define MAY_HAVE_DEBUG_INSNS (flag_var_tracking_assignments) |
9845d120 | 462 | |
e75781d3 | 463 | /* Predicate yielding nonzero iff X is a real insn. */ |
464 | #define INSN_P(X) \ | |
9845d120 | 465 | (NONJUMP_INSN_P (X) || DEBUG_INSN_P (X) || JUMP_P (X) || CALL_P (X)) |
e75781d3 | 466 | |
1deb248e | 467 | /* Predicate yielding nonzero iff X is a note insn. */ |
468 | #define NOTE_P(X) (GET_CODE (X) == NOTE) | |
469 | ||
470 | /* Predicate yielding nonzero iff X is a barrier insn. */ | |
471 | #define BARRIER_P(X) (GET_CODE (X) == BARRIER) | |
472 | ||
473 | /* Predicate yielding nonzero iff X is a data for a jump table. */ | |
474 | #define JUMP_TABLE_DATA_P(INSN) \ | |
475 | (JUMP_P (INSN) && (GET_CODE (PATTERN (INSN)) == ADDR_VEC || \ | |
476 | GET_CODE (PATTERN (INSN)) == ADDR_DIFF_VEC)) | |
477 | ||
9cb2517e | 478 | /* Predicate yielding nonzero iff X is a return or simple_return. */ |
479 | #define ANY_RETURN_P(X) \ | |
480 | (GET_CODE (X) == RETURN || GET_CODE (X) == SIMPLE_RETURN) | |
4115ac36 | 481 | |
6720e96c | 482 | /* 1 if X is a unary operator. */ |
483 | ||
484 | #define UNARY_P(X) \ | |
485 | (GET_RTX_CLASS (GET_CODE (X)) == RTX_UNARY) | |
486 | ||
487 | /* 1 if X is a binary operator. */ | |
488 | ||
489 | #define BINARY_P(X) \ | |
490 | ((GET_RTX_CLASS (GET_CODE (X)) & RTX_BINARY_MASK) == RTX_BINARY_RESULT) | |
491 | ||
492 | /* 1 if X is an arithmetic operator. */ | |
493 | ||
494 | #define ARITHMETIC_P(X) \ | |
495 | ((GET_RTX_CLASS (GET_CODE (X)) & RTX_ARITHMETIC_MASK) \ | |
496 | == RTX_ARITHMETIC_RESULT) | |
497 | ||
498 | /* 1 if X is an arithmetic operator. */ | |
499 | ||
500 | #define COMMUTATIVE_ARITH_P(X) \ | |
501 | (GET_RTX_CLASS (GET_CODE (X)) == RTX_COMM_ARITH) | |
502 | ||
503 | /* 1 if X is a commutative arithmetic operator or a comparison operator. | |
504 | These two are sometimes selected together because it is possible to | |
505 | swap the two operands. */ | |
506 | ||
507 | #define SWAPPABLE_OPERANDS_P(X) \ | |
508 | ((1 << GET_RTX_CLASS (GET_CODE (X))) \ | |
509 | & ((1 << RTX_COMM_ARITH) | (1 << RTX_COMM_COMPARE) \ | |
510 | | (1 << RTX_COMPARE))) | |
511 | ||
512 | /* 1 if X is a non-commutative operator. */ | |
513 | ||
514 | #define NON_COMMUTATIVE_P(X) \ | |
515 | ((GET_RTX_CLASS (GET_CODE (X)) & RTX_COMMUTATIVE_MASK) \ | |
516 | == RTX_NON_COMMUTATIVE_RESULT) | |
517 | ||
518 | /* 1 if X is a commutative operator on integers. */ | |
519 | ||
520 | #define COMMUTATIVE_P(X) \ | |
521 | ((GET_RTX_CLASS (GET_CODE (X)) & RTX_COMMUTATIVE_MASK) \ | |
522 | == RTX_COMMUTATIVE_RESULT) | |
523 | ||
524 | /* 1 if X is a relational operator. */ | |
525 | ||
526 | #define COMPARISON_P(X) \ | |
527 | ((GET_RTX_CLASS (GET_CODE (X)) & RTX_COMPARE_MASK) == RTX_COMPARE_RESULT) | |
528 | ||
759bebca | 529 | /* 1 if X is a constant value that is an integer. */ |
530 | ||
531 | #define CONSTANT_P(X) \ | |
0824c0d2 | 532 | (GET_RTX_CLASS (GET_CODE (X)) == RTX_CONST_OBJ) |
759bebca | 533 | |
6720e96c | 534 | /* 1 if X can be used to represent an object. */ |
535 | #define OBJECT_P(X) \ | |
536 | ((GET_RTX_CLASS (GET_CODE (X)) & RTX_OBJ_MASK) == RTX_OBJ_RESULT) | |
537 | ||
759bebca | 538 | /* General accessor macros for accessing the fields of an rtx. */ |
539 | ||
0c4e40c5 | 540 | #if defined ENABLE_RTL_CHECKING && (GCC_VERSION >= 2007) |
25999090 | 541 | /* The bit with a star outside the statement expr and an & inside is |
542 | so that N can be evaluated only once. */ | |
db7e2f59 | 543 | #define RTL_CHECK1(RTX, N, C1) __extension__ \ |
0c16c31b | 544 | (*({ __typeof (RTX) const _rtx = (RTX); const int _n = (N); \ |
861589fe | 545 | const enum rtx_code _code = GET_CODE (_rtx); \ |
25999090 | 546 | if (_n < 0 || _n >= GET_RTX_LENGTH (_code)) \ |
017c31d6 | 547 | rtl_check_failed_bounds (_rtx, _n, __FILE__, __LINE__, \ |
548 | __FUNCTION__); \ | |
25999090 | 549 | if (GET_RTX_FORMAT(_code)[_n] != C1) \ |
017c31d6 | 550 | rtl_check_failed_type1 (_rtx, _n, C1, __FILE__, __LINE__, \ |
551 | __FUNCTION__); \ | |
bf6b5685 | 552 | &_rtx->u.fld[_n]; })) |
25999090 | 553 | |
db7e2f59 | 554 | #define RTL_CHECK2(RTX, N, C1, C2) __extension__ \ |
0c16c31b | 555 | (*({ __typeof (RTX) const _rtx = (RTX); const int _n = (N); \ |
861589fe | 556 | const enum rtx_code _code = GET_CODE (_rtx); \ |
25999090 | 557 | if (_n < 0 || _n >= GET_RTX_LENGTH (_code)) \ |
017c31d6 | 558 | rtl_check_failed_bounds (_rtx, _n, __FILE__, __LINE__, \ |
559 | __FUNCTION__); \ | |
25999090 | 560 | if (GET_RTX_FORMAT(_code)[_n] != C1 \ |
561 | && GET_RTX_FORMAT(_code)[_n] != C2) \ | |
562 | rtl_check_failed_type2 (_rtx, _n, C1, C2, __FILE__, __LINE__, \ | |
19fafbd3 | 563 | __FUNCTION__); \ |
bf6b5685 | 564 | &_rtx->u.fld[_n]; })) |
25999090 | 565 | |
db7e2f59 | 566 | #define RTL_CHECKC1(RTX, N, C) __extension__ \ |
0c16c31b | 567 | (*({ __typeof (RTX) const _rtx = (RTX); const int _n = (N); \ |
017c31d6 | 568 | if (GET_CODE (_rtx) != (C)) \ |
569 | rtl_check_failed_code1 (_rtx, (C), __FILE__, __LINE__, \ | |
570 | __FUNCTION__); \ | |
bf6b5685 | 571 | &_rtx->u.fld[_n]; })) |
005d995b | 572 | |
db7e2f59 | 573 | #define RTL_CHECKC2(RTX, N, C1, C2) __extension__ \ |
0c16c31b | 574 | (*({ __typeof (RTX) const _rtx = (RTX); const int _n = (N); \ |
861589fe | 575 | const enum rtx_code _code = GET_CODE (_rtx); \ |
017c31d6 | 576 | if (_code != (C1) && _code != (C2)) \ |
577 | rtl_check_failed_code2 (_rtx, (C1), (C2), __FILE__, __LINE__, \ | |
578 | __FUNCTION__); \ | |
bf6b5685 | 579 | &_rtx->u.fld[_n]; })) |
005d995b | 580 | |
db7e2f59 | 581 | #define RTVEC_ELT(RTVEC, I) __extension__ \ |
0c16c31b | 582 | (*({ __typeof (RTVEC) const _rtvec = (RTVEC); const int _i = (I); \ |
25999090 | 583 | if (_i < 0 || _i >= GET_NUM_ELEM (_rtvec)) \ |
584 | rtvec_check_failed_bounds (_rtvec, _i, __FILE__, __LINE__, \ | |
19fafbd3 | 585 | __FUNCTION__); \ |
25999090 | 586 | &_rtvec->elem[_i]; })) |
587 | ||
bf6b5685 | 588 | #define XWINT(RTX, N) __extension__ \ |
0c16c31b | 589 | (*({ __typeof (RTX) const _rtx = (RTX); const int _n = (N); \ |
bf6b5685 | 590 | const enum rtx_code _code = GET_CODE (_rtx); \ |
591 | if (_n < 0 || _n >= GET_RTX_LENGTH (_code)) \ | |
592 | rtl_check_failed_bounds (_rtx, _n, __FILE__, __LINE__, \ | |
593 | __FUNCTION__); \ | |
594 | if (GET_RTX_FORMAT(_code)[_n] != 'w') \ | |
595 | rtl_check_failed_type1 (_rtx, _n, 'w', __FILE__, __LINE__, \ | |
596 | __FUNCTION__); \ | |
597 | &_rtx->u.hwint[_n]; })) | |
598 | ||
599 | #define XCWINT(RTX, N, C) __extension__ \ | |
0c16c31b | 600 | (*({ __typeof (RTX) const _rtx = (RTX); \ |
bf6b5685 | 601 | if (GET_CODE (_rtx) != (C)) \ |
602 | rtl_check_failed_code1 (_rtx, (C), __FILE__, __LINE__, \ | |
603 | __FUNCTION__); \ | |
604 | &_rtx->u.hwint[N]; })) | |
605 | ||
e8aaae4e | 606 | #define XCMWINT(RTX, N, C, M) __extension__ \ |
0c16c31b | 607 | (*({ __typeof (RTX) const _rtx = (RTX); \ |
e8aaae4e | 608 | if (GET_CODE (_rtx) != (C) || GET_MODE (_rtx) != (M)) \ |
609 | rtl_check_failed_code_mode (_rtx, (C), (M), false, __FILE__, \ | |
610 | __LINE__, __FUNCTION__); \ | |
611 | &_rtx->u.hwint[N]; })) | |
612 | ||
613 | #define XCNMPRV(RTX, C, M) __extension__ \ | |
0c16c31b | 614 | ({ __typeof (RTX) const _rtx = (RTX); \ |
e8aaae4e | 615 | if (GET_CODE (_rtx) != (C) || GET_MODE (_rtx) == (M)) \ |
616 | rtl_check_failed_code_mode (_rtx, (C), (M), true, __FILE__, \ | |
617 | __LINE__, __FUNCTION__); \ | |
618 | &_rtx->u.rv; }) | |
619 | ||
e397ad8e | 620 | #define XCNMPFV(RTX, C, M) __extension__ \ |
6463c271 | 621 | ({ __typeof (RTX) const _rtx = (RTX); \ |
e397ad8e | 622 | if (GET_CODE (_rtx) != (C) || GET_MODE (_rtx) == (M)) \ |
623 | rtl_check_failed_code_mode (_rtx, (C), (M), true, __FILE__, \ | |
624 | __LINE__, __FUNCTION__); \ | |
625 | &_rtx->u.fv; }) | |
626 | ||
f2d0e9f1 | 627 | #define BLOCK_SYMBOL_CHECK(RTX) __extension__ \ |
0c16c31b | 628 | ({ __typeof (RTX) const _symbol = (RTX); \ |
629 | const unsigned int flags = RTL_CHECKC1 (_symbol, 1, SYMBOL_REF).rt_int; \ | |
6617cbc1 | 630 | if ((flags & SYMBOL_FLAG_HAS_BLOCK_INFO) == 0) \ |
f2d0e9f1 | 631 | rtl_check_failed_block_symbol (__FILE__, __LINE__, \ |
632 | __FUNCTION__); \ | |
633 | &_symbol->u.block_sym; }) | |
634 | ||
dd9b9fc5 | 635 | extern void rtl_check_failed_bounds (const_rtx, int, const char *, int, |
3ad4992f | 636 | const char *) |
25999090 | 637 | ATTRIBUTE_NORETURN; |
dd9b9fc5 | 638 | extern void rtl_check_failed_type1 (const_rtx, int, int, const char *, int, |
3ad4992f | 639 | const char *) |
25999090 | 640 | ATTRIBUTE_NORETURN; |
dd9b9fc5 | 641 | extern void rtl_check_failed_type2 (const_rtx, int, int, int, const char *, |
3ad4992f | 642 | int, const char *) |
25999090 | 643 | ATTRIBUTE_NORETURN; |
dd9b9fc5 | 644 | extern void rtl_check_failed_code1 (const_rtx, enum rtx_code, const char *, |
3ad4992f | 645 | int, const char *) |
005d995b | 646 | ATTRIBUTE_NORETURN; |
dd9b9fc5 | 647 | extern void rtl_check_failed_code2 (const_rtx, enum rtx_code, enum rtx_code, |
3ad4992f | 648 | const char *, int, const char *) |
005d995b | 649 | ATTRIBUTE_NORETURN; |
dd9b9fc5 | 650 | extern void rtl_check_failed_code_mode (const_rtx, enum rtx_code, enum machine_mode, |
e8aaae4e | 651 | bool, const char *, int, const char *) |
652 | ATTRIBUTE_NORETURN; | |
f2d0e9f1 | 653 | extern void rtl_check_failed_block_symbol (const char *, int, const char *) |
654 | ATTRIBUTE_NORETURN; | |
dd9b9fc5 | 655 | extern void rtvec_check_failed_bounds (const_rtvec, int, const char *, int, |
3ad4992f | 656 | const char *) |
25999090 | 657 | ATTRIBUTE_NORETURN; |
658 | ||
0c4e40c5 | 659 | #else /* not ENABLE_RTL_CHECKING */ |
25999090 | 660 | |
bf6b5685 | 661 | #define RTL_CHECK1(RTX, N, C1) ((RTX)->u.fld[N]) |
662 | #define RTL_CHECK2(RTX, N, C1, C2) ((RTX)->u.fld[N]) | |
663 | #define RTL_CHECKC1(RTX, N, C) ((RTX)->u.fld[N]) | |
664 | #define RTL_CHECKC2(RTX, N, C1, C2) ((RTX)->u.fld[N]) | |
005d995b | 665 | #define RTVEC_ELT(RTVEC, I) ((RTVEC)->elem[I]) |
bf6b5685 | 666 | #define XWINT(RTX, N) ((RTX)->u.hwint[N]) |
667 | #define XCWINT(RTX, N, C) ((RTX)->u.hwint[N]) | |
e8aaae4e | 668 | #define XCMWINT(RTX, N, C, M) ((RTX)->u.hwint[N]) |
669 | #define XCNMWINT(RTX, N, C, M) ((RTX)->u.hwint[N]) | |
670 | #define XCNMPRV(RTX, C, M) (&(RTX)->u.rv) | |
e397ad8e | 671 | #define XCNMPFV(RTX, C, M) (&(RTX)->u.fv) |
f2d0e9f1 | 672 | #define BLOCK_SYMBOL_CHECK(RTX) (&(RTX)->u.block_sym) |
25999090 | 673 | |
674 | #endif | |
675 | ||
e7f75e15 | 676 | /* General accessor macros for accessing the flags of an rtx. */ |
677 | ||
678 | /* Access an individual rtx flag, with no checking of any kind. */ | |
679 | #define RTX_FLAG(RTX, FLAG) ((RTX)->FLAG) | |
680 | ||
9b535aa8 | 681 | #if defined ENABLE_RTL_FLAG_CHECKING && (GCC_VERSION >= 2007) |
3c6858c6 | 682 | #define RTL_FLAG_CHECK1(NAME, RTX, C1) __extension__ \ |
0c16c31b | 683 | ({ __typeof (RTX) const _rtx = (RTX); \ |
e7f75e15 | 684 | if (GET_CODE(_rtx) != C1) \ |
3c6858c6 | 685 | rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \ |
1a97be37 | 686 | __FUNCTION__); \ |
e7f75e15 | 687 | _rtx; }) |
688 | ||
3c6858c6 | 689 | #define RTL_FLAG_CHECK2(NAME, RTX, C1, C2) __extension__ \ |
0c16c31b | 690 | ({ __typeof (RTX) const _rtx = (RTX); \ |
e7f75e15 | 691 | if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2) \ |
3c6858c6 | 692 | rtl_check_failed_flag (NAME,_rtx, __FILE__, __LINE__, \ |
1a97be37 | 693 | __FUNCTION__); \ |
e7f75e15 | 694 | _rtx; }) |
695 | ||
3c6858c6 | 696 | #define RTL_FLAG_CHECK3(NAME, RTX, C1, C2, C3) __extension__ \ |
0c16c31b | 697 | ({ __typeof (RTX) const _rtx = (RTX); \ |
1a97be37 | 698 | if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \ |
e7f75e15 | 699 | && GET_CODE(_rtx) != C3) \ |
3c6858c6 | 700 | rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \ |
1a97be37 | 701 | __FUNCTION__); \ |
e7f75e15 | 702 | _rtx; }) |
703 | ||
3c6858c6 | 704 | #define RTL_FLAG_CHECK4(NAME, RTX, C1, C2, C3, C4) __extension__ \ |
0c16c31b | 705 | ({ __typeof (RTX) const _rtx = (RTX); \ |
1a97be37 | 706 | if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \ |
e7f75e15 | 707 | && GET_CODE(_rtx) != C3 && GET_CODE(_rtx) != C4) \ |
3c6858c6 | 708 | rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \ |
1a97be37 | 709 | __FUNCTION__); \ |
e7f75e15 | 710 | _rtx; }) |
711 | ||
3c6858c6 | 712 | #define RTL_FLAG_CHECK5(NAME, RTX, C1, C2, C3, C4, C5) __extension__ \ |
0c16c31b | 713 | ({ __typeof (RTX) const _rtx = (RTX); \ |
1a97be37 | 714 | if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \ |
e7f75e15 | 715 | && GET_CODE(_rtx) != C3 && GET_CODE(_rtx) != C4 \ |
716 | && GET_CODE(_rtx) != C5) \ | |
3c6858c6 | 717 | rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \ |
1a97be37 | 718 | __FUNCTION__); \ |
e7f75e15 | 719 | _rtx; }) |
720 | ||
3c6858c6 | 721 | #define RTL_FLAG_CHECK6(NAME, RTX, C1, C2, C3, C4, C5, C6) \ |
722 | __extension__ \ | |
0c16c31b | 723 | ({ __typeof (RTX) const _rtx = (RTX); \ |
1a97be37 | 724 | if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \ |
e7f75e15 | 725 | && GET_CODE(_rtx) != C3 && GET_CODE(_rtx) != C4 \ |
726 | && GET_CODE(_rtx) != C5 && GET_CODE(_rtx) != C6) \ | |
3c6858c6 | 727 | rtl_check_failed_flag (NAME,_rtx, __FILE__, __LINE__, \ |
1a97be37 | 728 | __FUNCTION__); \ |
e7f75e15 | 729 | _rtx; }) |
730 | ||
3c6858c6 | 731 | #define RTL_FLAG_CHECK7(NAME, RTX, C1, C2, C3, C4, C5, C6, C7) \ |
732 | __extension__ \ | |
0c16c31b | 733 | ({ __typeof (RTX) const _rtx = (RTX); \ |
1a97be37 | 734 | if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \ |
e7f75e15 | 735 | && GET_CODE(_rtx) != C3 && GET_CODE(_rtx) != C4 \ |
736 | && GET_CODE(_rtx) != C5 && GET_CODE(_rtx) != C6 \ | |
737 | && GET_CODE(_rtx) != C7) \ | |
3c6858c6 | 738 | rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \ |
1a97be37 | 739 | __FUNCTION__); \ |
e7f75e15 | 740 | _rtx; }) |
741 | ||
3c6858c6 | 742 | #define RTL_FLAG_CHECK8(NAME, RTX, C1, C2, C3, C4, C5, C6, C7, C8) \ |
743 | __extension__ \ | |
0c16c31b | 744 | ({ __typeof (RTX) const _rtx = (RTX); \ |
1a97be37 | 745 | if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \ |
e7f75e15 | 746 | && GET_CODE(_rtx) != C3 && GET_CODE(_rtx) != C4 \ |
747 | && GET_CODE(_rtx) != C5 && GET_CODE(_rtx) != C6 \ | |
748 | && GET_CODE(_rtx) != C7 && GET_CODE(_rtx) != C8) \ | |
3c6858c6 | 749 | rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \ |
1a97be37 | 750 | __FUNCTION__); \ |
e7f75e15 | 751 | _rtx; }) |
752 | ||
dd9b9fc5 | 753 | extern void rtl_check_failed_flag (const char *, const_rtx, const char *, |
3ad4992f | 754 | int, const char *) |
e7f75e15 | 755 | ATTRIBUTE_NORETURN |
756 | ; | |
757 | ||
758 | #else /* not ENABLE_RTL_FLAG_CHECKING */ | |
759 | ||
3c6858c6 | 760 | #define RTL_FLAG_CHECK1(NAME, RTX, C1) (RTX) |
761 | #define RTL_FLAG_CHECK2(NAME, RTX, C1, C2) (RTX) | |
762 | #define RTL_FLAG_CHECK3(NAME, RTX, C1, C2, C3) (RTX) | |
763 | #define RTL_FLAG_CHECK4(NAME, RTX, C1, C2, C3, C4) (RTX) | |
1a97be37 | 764 | #define RTL_FLAG_CHECK5(NAME, RTX, C1, C2, C3, C4, C5) (RTX) |
3c6858c6 | 765 | #define RTL_FLAG_CHECK6(NAME, RTX, C1, C2, C3, C4, C5, C6) (RTX) |
766 | #define RTL_FLAG_CHECK7(NAME, RTX, C1, C2, C3, C4, C5, C6, C7) (RTX) | |
767 | #define RTL_FLAG_CHECK8(NAME, RTX, C1, C2, C3, C4, C5, C6, C7, C8) (RTX) | |
e7f75e15 | 768 | #endif |
769 | ||
993d9e55 | 770 | #define XINT(RTX, N) (RTL_CHECK2 (RTX, N, 'i', 'n').rt_int) |
5169661d | 771 | #define XUINT(RTX, N) (RTL_CHECK2 (RTX, N, 'i', 'n').rt_uint) |
993d9e55 | 772 | #define XSTR(RTX, N) (RTL_CHECK2 (RTX, N, 's', 'S').rt_str) |
773 | #define XEXP(RTX, N) (RTL_CHECK2 (RTX, N, 'e', 'u').rt_rtx) | |
774 | #define XVEC(RTX, N) (RTL_CHECK2 (RTX, N, 'E', 'V').rt_rtvec) | |
775 | #define XMODE(RTX, N) (RTL_CHECK1 (RTX, N, 'M').rt_type) | |
993d9e55 | 776 | #define XTREE(RTX, N) (RTL_CHECK1 (RTX, N, 't').rt_tree) |
777 | #define XBBDEF(RTX, N) (RTL_CHECK1 (RTX, N, 'B').rt_bb) | |
778 | #define XTMPL(RTX, N) (RTL_CHECK1 (RTX, N, 'T').rt_str) | |
46346a52 | 779 | #define XCFI(RTX, N) (RTL_CHECK1 (RTX, N, 'C').rt_cfi) |
25999090 | 780 | |
781 | #define XVECEXP(RTX, N, M) RTVEC_ELT (XVEC (RTX, N), M) | |
782 | #define XVECLEN(RTX, N) GET_NUM_ELEM (XVEC (RTX, N)) | |
783 | ||
bf6b5685 | 784 | /* These are like XINT, etc. except that they expect a '0' field instead |
25999090 | 785 | of the normal type code. */ |
786 | ||
993d9e55 | 787 | #define X0INT(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_int) |
788 | #define X0UINT(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_uint) | |
789 | #define X0STR(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_str) | |
790 | #define X0EXP(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_rtx) | |
791 | #define X0VEC(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_rtvec) | |
792 | #define X0MODE(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_type) | |
993d9e55 | 793 | #define X0TREE(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_tree) |
794 | #define X0BBDEF(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_bb) | |
017c31d6 | 795 | #define X0ADVFLAGS(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_addr_diff_vec_flags) |
796 | #define X0CSELIB(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_cselib) | |
993d9e55 | 797 | #define X0MEMATTR(RTX, N) (RTL_CHECKC1 (RTX, N, MEM).rt_mem) |
798 | #define X0REGATTR(RTX, N) (RTL_CHECKC1 (RTX, N, REG).rt_reg) | |
7c266bb1 | 799 | #define X0CONSTANT(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_constant) |
017c31d6 | 800 | |
bf6b5685 | 801 | /* Access a '0' field with any type. */ |
802 | #define X0ANY(RTX, N) RTL_CHECK1 (RTX, N, '0') | |
803 | ||
993d9e55 | 804 | #define XCINT(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_int) |
805 | #define XCUINT(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_uint) | |
806 | #define XCSTR(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_str) | |
807 | #define XCEXP(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_rtx) | |
808 | #define XCVEC(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_rtvec) | |
809 | #define XCMODE(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_type) | |
993d9e55 | 810 | #define XCTREE(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_tree) |
811 | #define XCBBDEF(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_bb) | |
46346a52 | 812 | #define XCCFI(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_cfi) |
017c31d6 | 813 | #define XCCSELIB(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_cselib) |
005d995b | 814 | |
815 | #define XCVECEXP(RTX, N, M, C) RTVEC_ELT (XCVEC (RTX, N, C), M) | |
816 | #define XCVECLEN(RTX, N, C) GET_NUM_ELEM (XCVEC (RTX, N, C)) | |
817 | ||
993d9e55 | 818 | #define XC2EXP(RTX, N, C1, C2) (RTL_CHECKC2 (RTX, N, C1, C2).rt_rtx) |
759bebca | 819 | \f |
820 | /* ACCESS MACROS for particular fields of insns. */ | |
821 | ||
822 | /* Holds a unique number for each insn. | |
823 | These are not necessarily sequentially increasing. */ | |
017c31d6 | 824 | #define INSN_UID(INSN) XINT (INSN, 0) |
759bebca | 825 | |
826 | /* Chain insns together in sequence. */ | |
017c31d6 | 827 | #define PREV_INSN(INSN) XEXP (INSN, 1) |
828 | #define NEXT_INSN(INSN) XEXP (INSN, 2) | |
759bebca | 829 | |
ab87d1bc | 830 | #define BLOCK_FOR_INSN(INSN) XBBDEF (INSN, 3) |
3a55c112 | 831 | |
832 | /* The body of an insn. */ | |
833 | #define PATTERN(INSN) XEXP (INSN, 4) | |
834 | ||
5169661d | 835 | #define INSN_LOCATION(INSN) XUINT (INSN, 5) |
836 | ||
8e7408e3 | 837 | #define INSN_HAS_LOCATION(INSN) ((LOCATION_LOCUS (INSN_LOCATION (INSN)))\ |
838 | != UNKNOWN_LOCATION) | |
5169661d | 839 | |
e60a6f7b | 840 | /* LOCATION of an RTX if relevant. */ |
841 | #define RTL_LOCATION(X) (INSN_P (X) ? \ | |
5169661d | 842 | INSN_LOCATION (X) : UNKNOWN_LOCATION) |
759bebca | 843 | |
844 | /* Code number of instruction, from when it was recognized. | |
845 | -1 means this instruction has not been recognized yet. */ | |
ab87d1bc | 846 | #define INSN_CODE(INSN) XINT (INSN, 6) |
759bebca | 847 | |
3c6858c6 | 848 | #define RTX_FRAME_RELATED_P(RTX) \ |
9845d120 | 849 | (RTL_FLAG_CHECK6("RTX_FRAME_RELATED_P", (RTX), DEBUG_INSN, INSN, \ |
850 | CALL_INSN, JUMP_INSN, BARRIER, SET)->frame_related) | |
3c6858c6 | 851 | |
852 | /* 1 if RTX is an insn that has been deleted. */ | |
853 | #define INSN_DELETED_P(RTX) \ | |
9845d120 | 854 | (RTL_FLAG_CHECK7("INSN_DELETED_P", (RTX), DEBUG_INSN, INSN, \ |
855 | CALL_INSN, JUMP_INSN, \ | |
3c6858c6 | 856 | CODE_LABEL, BARRIER, NOTE)->volatil) |
857 | ||
9c2a0c05 | 858 | /* 1 if RTX is a call to a const function. Built from ECF_CONST and |
859 | TREE_READONLY. */ | |
860 | #define RTL_CONST_CALL_P(RTX) \ | |
861 | (RTL_FLAG_CHECK1("RTL_CONST_CALL_P", (RTX), CALL_INSN)->unchanging) | |
862 | ||
863 | /* 1 if RTX is a call to a pure function. Built from ECF_PURE and | |
864 | DECL_PURE_P. */ | |
865 | #define RTL_PURE_CALL_P(RTX) \ | |
866 | (RTL_FLAG_CHECK1("RTL_PURE_CALL_P", (RTX), CALL_INSN)->return_val) | |
867 | ||
3c6858c6 | 868 | /* 1 if RTX is a call to a const or pure function. */ |
9c2a0c05 | 869 | #define RTL_CONST_OR_PURE_CALL_P(RTX) \ |
870 | (RTL_CONST_CALL_P(RTX) || RTL_PURE_CALL_P(RTX)) | |
871 | ||
872 | /* 1 if RTX is a call to a looping const or pure function. Built from | |
873 | ECF_LOOPING_CONST_OR_PURE and DECL_LOOPING_CONST_OR_PURE_P. */ | |
874 | #define RTL_LOOPING_CONST_OR_PURE_CALL_P(RTX) \ | |
875 | (RTL_FLAG_CHECK1("CONST_OR_PURE_CALL_P", (RTX), CALL_INSN)->call) | |
3c6858c6 | 876 | |
877 | /* 1 if RTX is a call_insn for a sibling call. */ | |
878 | #define SIBLING_CALL_P(RTX) \ | |
879 | (RTL_FLAG_CHECK1("SIBLING_CALL_P", (RTX), CALL_INSN)->jump) | |
880 | ||
5fdf542c | 881 | /* 1 if RTX is a jump_insn, call_insn, or insn that is an annulling branch. */ |
3c6858c6 | 882 | #define INSN_ANNULLED_BRANCH_P(RTX) \ |
7e66a69e | 883 | (RTL_FLAG_CHECK1("INSN_ANNULLED_BRANCH_P", (RTX), JUMP_INSN)->unchanging) |
3c6858c6 | 884 | |
3c6858c6 | 885 | /* 1 if RTX is an insn in a delay slot and is from the target of the branch. |
886 | If the branch insn has INSN_ANNULLED_BRANCH_P set, this insn should only be | |
759bebca | 887 | executed if the branch is taken. For annulled branches with this bit |
888 | clear, the insn should be executed only if the branch is not taken. */ | |
3c6858c6 | 889 | #define INSN_FROM_TARGET_P(RTX) \ |
00f2bb6a | 890 | (RTL_FLAG_CHECK3("INSN_FROM_TARGET_P", (RTX), INSN, JUMP_INSN, CALL_INSN)->in_struct) |
759bebca | 891 | |
5bbaf5ca | 892 | /* In an ADDR_DIFF_VEC, the flags for RTX for use by branch shortening. |
893 | See the comments for ADDR_DIFF_VEC in rtl.def. */ | |
f220c8f0 | 894 | #define ADDR_DIFF_VEC_FLAGS(RTX) X0ADVFLAGS(RTX, 4) |
895 | ||
5bbaf5ca | 896 | /* In a VALUE, the value cselib has assigned to RTX. |
897 | This is a "struct cselib_val_struct", see cselib.h. */ | |
f220c8f0 | 898 | #define CSELIB_VAL_PTR(RTX) X0CSELIB(RTX, 0) |
899 | ||
759bebca | 900 | /* Holds a list of notes on what this insn does to various REGs. |
f220c8f0 | 901 | It is a chain of EXPR_LIST rtx's, where the second operand is the |
902 | chain pointer and the first operand is the REG being described. | |
759bebca | 903 | The mode field of the EXPR_LIST contains not a real machine mode |
f220c8f0 | 904 | but a value from enum reg_note. */ |
3072d30e | 905 | #define REG_NOTES(INSN) XEXP(INSN, 7) |
759bebca | 906 | |
a5701bde | 907 | /* In an ENTRY_VALUE this is the DECL_INCOMING_RTL of the argument in |
908 | question. */ | |
909 | #define ENTRY_VALUE_EXP(RTX) (RTL_CHECKC1 (RTX, 0, ENTRY_VALUE).rt_rtx) | |
910 | ||
f220c8f0 | 911 | enum reg_note |
912 | { | |
30f4db0d | 913 | #define DEF_REG_NOTE(NAME) NAME, |
914 | #include "reg-notes.def" | |
915 | #undef DEF_REG_NOTE | |
916 | REG_NOTE_MAX | |
f220c8f0 | 917 | }; |
918 | ||
759bebca | 919 | /* Define macros to extract and insert the reg-note kind in an EXPR_LIST. */ |
920 | #define REG_NOTE_KIND(LINK) ((enum reg_note) GET_MODE (LINK)) | |
017c31d6 | 921 | #define PUT_REG_NOTE_KIND(LINK, KIND) \ |
922 | PUT_MODE (LINK, (enum machine_mode) (KIND)) | |
759bebca | 923 | |
924 | /* Names for REG_NOTE's in EXPR_LIST insn's. */ | |
925 | ||
66e6c350 | 926 | extern const char * const reg_note_name[]; |
a92771b8 | 927 | #define GET_REG_NOTE_NAME(MODE) (reg_note_name[(int) (MODE)]) |
759bebca | 928 | |
ff18c271 | 929 | /* This field is only present on CALL_INSNs. It holds a chain of EXPR_LIST of |
930 | USE and CLOBBER expressions. | |
931 | USE expressions list the registers filled with arguments that | |
932 | are passed to the function. | |
933 | CLOBBER expressions document the registers explicitly clobbered | |
934 | by this CALL_INSN. | |
935 | Pseudo registers can not be mentioned in this list. */ | |
3072d30e | 936 | #define CALL_INSN_FUNCTION_USAGE(INSN) XEXP(INSN, 8) |
ff18c271 | 937 | |
759bebca | 938 | /* The label-number of a code-label. The assembler label |
939 | is made from `L' and the label-number printed in decimal. | |
940 | Label numbers are unique in a compilation. */ | |
ab87d1bc | 941 | #define CODE_LABEL_NUMBER(INSN) XINT (INSN, 6) |
759bebca | 942 | |
a3426c4c | 943 | /* In a NOTE that is a line number, this is a string for the file name that the |
944 | line is in. We use the same field to record block numbers temporarily in | |
945 | NOTE_INSN_BLOCK_BEG and NOTE_INSN_BLOCK_END notes. (We avoid lots of casts | |
946 | between ints and pointers if we use a different macro for the block number.) | |
f16b6102 | 947 | */ |
759bebca | 948 | |
0a3b3d88 | 949 | /* Opaque data. */ |
9e628780 | 950 | #define NOTE_DATA(INSN) RTL_CHECKC1 (INSN, 4, NOTE) |
951 | #define NOTE_DELETED_LABEL_NAME(INSN) XCSTR (INSN, 4, NOTE) | |
3072d30e | 952 | #define SET_INSN_DELETED(INSN) set_insn_deleted (INSN); |
9e628780 | 953 | #define NOTE_BLOCK(INSN) XCTREE (INSN, 4, NOTE) |
954 | #define NOTE_EH_HANDLER(INSN) XCINT (INSN, 4, NOTE) | |
955 | #define NOTE_BASIC_BLOCK(INSN) XCBBDEF (INSN, 4, NOTE) | |
956 | #define NOTE_VAR_LOCATION(INSN) XCEXP (INSN, 4, NOTE) | |
46346a52 | 957 | #define NOTE_CFI(INSN) XCCFI (INSN, 4, NOTE) |
958 | #define NOTE_LABEL_NUMBER(INSN) XCINT (INSN, 4, NOTE) | |
a3426c4c | 959 | |
759bebca | 960 | /* In a NOTE that is a line number, this is the line number. |
961 | Other kinds of NOTEs are identified by negative numbers here. */ | |
9e628780 | 962 | #define NOTE_KIND(INSN) XCINT (INSN, 5, NOTE) |
759bebca | 963 | |
83458610 | 964 | /* Nonzero if INSN is a note marking the beginning of a basic block. */ |
1a97be37 | 965 | #define NOTE_INSN_BASIC_BLOCK_P(INSN) \ |
83458610 | 966 | (GET_CODE (INSN) == NOTE \ |
ad4583d9 | 967 | && NOTE_KIND (INSN) == NOTE_INSN_BASIC_BLOCK) |
83458610 | 968 | |
5923a5e7 | 969 | /* Variable declaration and the location of a variable. */ |
9845d120 | 970 | #define PAT_VAR_LOCATION_DECL(PAT) (XCTREE ((PAT), 0, VAR_LOCATION)) |
971 | #define PAT_VAR_LOCATION_LOC(PAT) (XCEXP ((PAT), 1, VAR_LOCATION)) | |
759bebca | 972 | |
d53bb226 | 973 | /* Initialization status of the variable in the location. Status |
974 | can be unknown, uninitialized or initialized. See enumeration | |
975 | type below. */ | |
9845d120 | 976 | #define PAT_VAR_LOCATION_STATUS(PAT) \ |
977 | ((enum var_init_status) (XCINT ((PAT), 2, VAR_LOCATION))) | |
978 | ||
979 | /* Accessors for a NOTE_INSN_VAR_LOCATION. */ | |
980 | #define NOTE_VAR_LOCATION_DECL(NOTE) \ | |
981 | PAT_VAR_LOCATION_DECL (NOTE_VAR_LOCATION (NOTE)) | |
982 | #define NOTE_VAR_LOCATION_LOC(NOTE) \ | |
983 | PAT_VAR_LOCATION_LOC (NOTE_VAR_LOCATION (NOTE)) | |
984 | #define NOTE_VAR_LOCATION_STATUS(NOTE) \ | |
985 | PAT_VAR_LOCATION_STATUS (NOTE_VAR_LOCATION (NOTE)) | |
986 | ||
987 | /* The VAR_LOCATION rtx in a DEBUG_INSN. */ | |
988 | #define INSN_VAR_LOCATION(INSN) PATTERN (INSN) | |
989 | ||
990 | /* Accessors for a tree-expanded var location debug insn. */ | |
991 | #define INSN_VAR_LOCATION_DECL(INSN) \ | |
992 | PAT_VAR_LOCATION_DECL (INSN_VAR_LOCATION (INSN)) | |
993 | #define INSN_VAR_LOCATION_LOC(INSN) \ | |
994 | PAT_VAR_LOCATION_LOC (INSN_VAR_LOCATION (INSN)) | |
995 | #define INSN_VAR_LOCATION_STATUS(INSN) \ | |
996 | PAT_VAR_LOCATION_STATUS (INSN_VAR_LOCATION (INSN)) | |
997 | ||
998 | /* Expand to the RTL that denotes an unknown variable location in a | |
999 | DEBUG_INSN. */ | |
1000 | #define gen_rtx_UNKNOWN_VAR_LOC() (gen_rtx_CLOBBER (VOIDmode, const0_rtx)) | |
1001 | ||
1002 | /* Determine whether X is such an unknown location. */ | |
1003 | #define VAR_LOC_UNKNOWN_P(X) \ | |
1004 | (GET_CODE (X) == CLOBBER && XEXP ((X), 0) == const0_rtx) | |
1005 | ||
1006 | /* 1 if RTX is emitted after a call, but it should take effect before | |
1007 | the call returns. */ | |
1008 | #define NOTE_DURING_CALL_P(RTX) \ | |
1009 | (RTL_FLAG_CHECK1("NOTE_VAR_LOCATION_DURING_CALL_P", (RTX), NOTE)->call) | |
d53bb226 | 1010 | |
23dd51cb | 1011 | /* DEBUG_EXPR_DECL corresponding to a DEBUG_EXPR RTX. */ |
1012 | #define DEBUG_EXPR_TREE_DECL(RTX) XCTREE (RTX, 0, DEBUG_EXPR) | |
1013 | ||
f9c61ef7 | 1014 | /* VAR_DECL/PARM_DECL DEBUG_IMPLICIT_PTR takes address of. */ |
1015 | #define DEBUG_IMPLICIT_PTR_DECL(RTX) XCTREE (RTX, 0, DEBUG_IMPLICIT_PTR) | |
1016 | ||
841424cc | 1017 | /* PARM_DECL DEBUG_PARAMETER_REF references. */ |
1018 | #define DEBUG_PARAMETER_REF_DECL(RTX) XCTREE (RTX, 0, DEBUG_PARAMETER_REF) | |
1019 | ||
ad4583d9 | 1020 | /* Codes that appear in the NOTE_KIND field for kinds of notes |
30f4db0d | 1021 | that are not line numbers. These codes are all negative. |
48e1416a | 1022 | |
94c7f239 | 1023 | Notice that we do not try to use zero here for any of |
1024 | the special note codes because sometimes the source line | |
1025 | actually can be zero! This happens (for example) when we | |
1026 | are generating code for the per-translation-unit constructor | |
30f4db0d | 1027 | and destructor routines for some C++ translation unit. */ |
759bebca | 1028 | |
0c981e42 | 1029 | enum insn_note |
1030 | { | |
30f4db0d | 1031 | #define DEF_INSN_NOTE(NAME) NAME, |
1032 | #include "insn-notes.def" | |
1033 | #undef DEF_INSN_NOTE | |
5923a5e7 | 1034 | |
0c981e42 | 1035 | NOTE_INSN_MAX |
1036 | }; | |
64fdc3d4 | 1037 | |
759bebca | 1038 | /* Names for NOTE insn's other than line numbers. */ |
1039 | ||
ad4583d9 | 1040 | extern const char * const note_insn_name[NOTE_INSN_MAX]; |
0c981e42 | 1041 | #define GET_NOTE_INSN_NAME(NOTE_CODE) \ |
ad4583d9 | 1042 | (note_insn_name[(NOTE_CODE)]) |
759bebca | 1043 | |
1044 | /* The name of a label, in case it corresponds to an explicit label | |
1045 | in the input source code. */ | |
ab87d1bc | 1046 | #define LABEL_NAME(RTX) XCSTR (RTX, 7, CODE_LABEL) |
759bebca | 1047 | |
1048 | /* In jump.c, each label contains a count of the number | |
1049 | of LABEL_REFs that point at it, so unused labels can be deleted. */ | |
3a55c112 | 1050 | #define LABEL_NUSES(RTX) XCINT (RTX, 5, CODE_LABEL) |
759bebca | 1051 | |
a7ae1e59 | 1052 | /* Labels carry a two-bit field composed of the ->jump and ->call |
1053 | bits. This field indicates whether the label is an alternate | |
1054 | entry point, and if so, what kind. */ | |
1055 | enum label_kind | |
1056 | { | |
1057 | LABEL_NORMAL = 0, /* ordinary label */ | |
1058 | LABEL_STATIC_ENTRY, /* alternate entry point, not exported */ | |
1059 | LABEL_GLOBAL_ENTRY, /* alternate entry point, exported */ | |
1060 | LABEL_WEAK_ENTRY /* alternate entry point, exported as weak symbol */ | |
1061 | }; | |
1062 | ||
1063 | #if defined ENABLE_RTL_FLAG_CHECKING && (GCC_VERSION > 2007) | |
1064 | ||
1065 | /* Retrieve the kind of LABEL. */ | |
1066 | #define LABEL_KIND(LABEL) __extension__ \ | |
dd9b9fc5 | 1067 | ({ __typeof (LABEL) const _label = (LABEL); \ |
a7ae1e59 | 1068 | if (GET_CODE (_label) != CODE_LABEL) \ |
1069 | rtl_check_failed_flag ("LABEL_KIND", _label, __FILE__, __LINE__, \ | |
1070 | __FUNCTION__); \ | |
1071 | (enum label_kind) ((_label->jump << 1) | _label->call); }) | |
1072 | ||
1073 | /* Set the kind of LABEL. */ | |
1074 | #define SET_LABEL_KIND(LABEL, KIND) do { \ | |
dd9b9fc5 | 1075 | __typeof (LABEL) const _label = (LABEL); \ |
0c16c31b | 1076 | const unsigned int _kind = (KIND); \ |
a7ae1e59 | 1077 | if (GET_CODE (_label) != CODE_LABEL) \ |
1078 | rtl_check_failed_flag ("SET_LABEL_KIND", _label, __FILE__, __LINE__, \ | |
1079 | __FUNCTION__); \ | |
1080 | _label->jump = ((_kind >> 1) & 1); \ | |
1081 | _label->call = (_kind & 1); \ | |
1082 | } while (0) | |
1083 | ||
1084 | #else | |
1085 | ||
1086 | /* Retrieve the kind of LABEL. */ | |
1087 | #define LABEL_KIND(LABEL) \ | |
1088 | ((enum label_kind) (((LABEL)->jump << 1) | (LABEL)->call)) | |
1089 | ||
1090 | /* Set the kind of LABEL. */ | |
1091 | #define SET_LABEL_KIND(LABEL, KIND) do { \ | |
0c16c31b | 1092 | rtx const _label = (LABEL); \ |
1093 | const unsigned int _kind = (KIND); \ | |
a7ae1e59 | 1094 | _label->jump = ((_kind >> 1) & 1); \ |
1095 | _label->call = (_kind & 1); \ | |
1096 | } while (0) | |
1097 | ||
1098 | #endif /* rtl flag checking */ | |
1099 | ||
1100 | #define LABEL_ALT_ENTRY_P(LABEL) (LABEL_KIND (LABEL) != LABEL_NORMAL) | |
bfee5366 | 1101 | |
759bebca | 1102 | /* In jump.c, each JUMP_INSN can point to a label that it can jump to, |
1103 | so that if the JUMP_INSN is deleted, the label's LABEL_NUSES can | |
1104 | be decremented and possibly the label can be deleted. */ | |
3072d30e | 1105 | #define JUMP_LABEL(INSN) XCEXP (INSN, 8, JUMP_INSN) |
759bebca | 1106 | |
3072d30e | 1107 | /* Once basic blocks are found, each CODE_LABEL starts a chain that |
1108 | goes through all the LABEL_REFs that jump to that label. The chain | |
1109 | eventually winds up at the CODE_LABEL: it is circular. */ | |
3a55c112 | 1110 | #define LABEL_REFS(LABEL) XCEXP (LABEL, 4, CODE_LABEL) |
759bebca | 1111 | \f |
3072d30e | 1112 | /* For a REG rtx, REGNO extracts the register number. REGNO can only |
1113 | be used on RHS. Use SET_REGNO to change the value. */ | |
1114 | #define REGNO(RTX) (rhs_regno(RTX)) | |
1115 | #define SET_REGNO(RTX,N) (df_ref_change_reg_with_loc (REGNO(RTX), N, RTX), XCUINT (RTX, 0, REG) = N) | |
7f1819d3 | 1116 | #define SET_REGNO_RAW(RTX,N) (XCUINT (RTX, 0, REG) = N) |
3072d30e | 1117 | |
1118 | /* ORIGINAL_REGNO holds the number the register originally had; for a | |
1119 | pseudo register turned into a hard reg this will hold the old pseudo | |
1120 | register number. */ | |
017c31d6 | 1121 | #define ORIGINAL_REGNO(RTX) X0UINT (RTX, 1) |
759bebca | 1122 | |
3072d30e | 1123 | /* Force the REGNO macro to only be used on the lhs. */ |
1124 | static inline unsigned int | |
dd9b9fc5 | 1125 | rhs_regno (const_rtx x) |
3072d30e | 1126 | { |
1127 | return XCUINT (x, 0, REG); | |
1128 | } | |
1129 | ||
1130 | ||
b566e2e5 | 1131 | /* 1 if RTX is a reg or parallel that is the current function's return |
1132 | value. */ | |
3c6858c6 | 1133 | #define REG_FUNCTION_VALUE_P(RTX) \ |
4ee9c684 | 1134 | (RTL_FLAG_CHECK2("REG_FUNCTION_VALUE_P", (RTX), REG, PARALLEL)->return_val) |
759bebca | 1135 | |
3c6858c6 | 1136 | /* 1 if RTX is a reg that corresponds to a variable declared by the user. */ |
1137 | #define REG_USERVAR_P(RTX) \ | |
1138 | (RTL_FLAG_CHECK1("REG_USERVAR_P", (RTX), REG)->volatil) | |
759bebca | 1139 | |
3c6858c6 | 1140 | /* 1 if RTX is a reg that holds a pointer value. */ |
1141 | #define REG_POINTER(RTX) \ | |
1142 | (RTL_FLAG_CHECK1("REG_POINTER", (RTX), REG)->frame_related) | |
e61a0a7f | 1143 | |
8d350e69 | 1144 | /* 1 if RTX is a mem that holds a pointer value. */ |
1145 | #define MEM_POINTER(RTX) \ | |
1146 | (RTL_FLAG_CHECK1("MEM_POINTER", (RTX), MEM)->frame_related) | |
1147 | ||
baaa5be9 | 1148 | /* 1 if the given register REG corresponds to a hard register. */ |
1149 | #define HARD_REGISTER_P(REG) (HARD_REGISTER_NUM_P (REGNO (REG))) | |
1150 | ||
1151 | /* 1 if the given register number REG_NO corresponds to a hard register. */ | |
017c31d6 | 1152 | #define HARD_REGISTER_NUM_P(REG_NO) ((REG_NO) < FIRST_PSEUDO_REGISTER) |
baaa5be9 | 1153 | |
759bebca | 1154 | /* For a CONST_INT rtx, INTVAL extracts the integer. */ |
005d995b | 1155 | #define INTVAL(RTX) XCWINT(RTX, 0, CONST_INT) |
02fd0f2d | 1156 | #define UINTVAL(RTX) ((unsigned HOST_WIDE_INT) INTVAL (RTX)) |
759bebca | 1157 | |
0f221fb7 | 1158 | /* For a CONST_DOUBLE: |
0b2730a7 | 1159 | For a VOIDmode, there are two integers CONST_DOUBLE_LOW is the |
3393215f | 1160 | low-order word and ..._HIGH the high-order. |
1a97be37 | 1161 | For a float, there is a REAL_VALUE_TYPE structure, and |
3393215f | 1162 | CONST_DOUBLE_REAL_VALUE(r) is a pointer to it. */ |
e8aaae4e | 1163 | #define CONST_DOUBLE_LOW(r) XCMWINT (r, 0, CONST_DOUBLE, VOIDmode) |
1164 | #define CONST_DOUBLE_HIGH(r) XCMWINT (r, 1, CONST_DOUBLE, VOIDmode) | |
1165 | #define CONST_DOUBLE_REAL_VALUE(r) \ | |
1166 | ((const struct real_value *) XCNMPRV (r, CONST_DOUBLE, VOIDmode)) | |
0f221fb7 | 1167 | |
e397ad8e | 1168 | #define CONST_FIXED_VALUE(r) \ |
1169 | ((const struct fixed_value *) XCNMPFV (r, CONST_FIXED, VOIDmode)) | |
1170 | #define CONST_FIXED_VALUE_HIGH(r) \ | |
1171 | ((HOST_WIDE_INT) (CONST_FIXED_VALUE(r)->data.high)) | |
1172 | #define CONST_FIXED_VALUE_LOW(r) \ | |
1173 | ((HOST_WIDE_INT) (CONST_FIXED_VALUE(r)->data.low)) | |
1174 | ||
886cfd4f | 1175 | /* For a CONST_VECTOR, return element #n. */ |
1176 | #define CONST_VECTOR_ELT(RTX, N) XCVECEXP (RTX, 0, N, CONST_VECTOR) | |
1177 | ||
1178 | /* For a CONST_VECTOR, return the number of elements in a vector. */ | |
1179 | #define CONST_VECTOR_NUNITS(RTX) XCVECLEN (RTX, 0, CONST_VECTOR) | |
1180 | ||
759bebca | 1181 | /* For a SUBREG rtx, SUBREG_REG extracts the value we want a subreg of. |
701e46d0 | 1182 | SUBREG_BYTE extracts the byte-number. */ |
759bebca | 1183 | |
017c31d6 | 1184 | #define SUBREG_REG(RTX) XCEXP (RTX, 0, SUBREG) |
1185 | #define SUBREG_BYTE(RTX) XCUINT (RTX, 1, SUBREG) | |
701e46d0 | 1186 | |
1187 | /* in rtlanal.c */ | |
26619827 | 1188 | /* Return the right cost to give to an operation |
1189 | to make the cost of the corresponding register-to-register instruction | |
1190 | N times that of a fast register-to-register instruction. */ | |
1191 | #define COSTS_N_INSNS(N) ((N) * 4) | |
1192 | ||
1193 | /* Maximum cost of an rtl expression. This value has the special meaning | |
1194 | not to use an rtx with this cost under any circumstances. */ | |
1195 | #define MAX_COST INT_MAX | |
1196 | ||
c9a03487 | 1197 | /* A structure to hold all available cost information about an rtl |
1198 | expression. */ | |
1199 | struct full_rtx_costs | |
1200 | { | |
1201 | int speed; | |
1202 | int size; | |
1203 | }; | |
1204 | ||
1205 | /* Initialize a full_rtx_costs structure C to the maximum cost. */ | |
1206 | static inline void | |
1207 | init_costs_to_max (struct full_rtx_costs *c) | |
1208 | { | |
1209 | c->speed = MAX_COST; | |
1210 | c->size = MAX_COST; | |
1211 | } | |
1212 | ||
1213 | /* Initialize a full_rtx_costs structure C to zero cost. */ | |
1214 | static inline void | |
1215 | init_costs_to_zero (struct full_rtx_costs *c) | |
1216 | { | |
1217 | c->speed = 0; | |
1218 | c->size = 0; | |
1219 | } | |
1220 | ||
1221 | /* Compare two full_rtx_costs structures A and B, returning true | |
1222 | if A < B when optimizing for speed. */ | |
1223 | static inline bool | |
1224 | costs_lt_p (struct full_rtx_costs *a, struct full_rtx_costs *b, | |
1225 | bool speed) | |
1226 | { | |
1227 | if (speed) | |
1228 | return (a->speed < b->speed | |
1229 | || (a->speed == b->speed && a->size < b->size)); | |
1230 | else | |
1231 | return (a->size < b->size | |
1232 | || (a->size == b->size && a->speed < b->speed)); | |
1233 | } | |
1234 | ||
1235 | /* Increase both members of the full_rtx_costs structure C by the | |
1236 | cost of N insns. */ | |
1237 | static inline void | |
1238 | costs_add_n_insns (struct full_rtx_costs *c, int n) | |
1239 | { | |
1240 | c->speed += COSTS_N_INSNS (n); | |
1241 | c->size += COSTS_N_INSNS (n); | |
1242 | } | |
1243 | ||
1efe9e9d | 1244 | /* Information about an address. This structure is supposed to be able |
1245 | to represent all supported target addresses. Please extend it if it | |
1246 | is not yet general enough. */ | |
1247 | struct address_info { | |
1248 | /* The mode of the value being addressed, or VOIDmode if this is | |
1249 | a load-address operation with no known address mode. */ | |
1250 | enum machine_mode mode; | |
1251 | ||
1252 | /* The address space. */ | |
1253 | addr_space_t as; | |
1254 | ||
1255 | /* A pointer to the top-level address. */ | |
1256 | rtx *outer; | |
1257 | ||
1258 | /* A pointer to the inner address, after all address mutations | |
1259 | have been stripped from the top-level address. It can be one | |
1260 | of the following: | |
1261 | ||
1262 | - A {PRE,POST}_{INC,DEC} of *BASE. SEGMENT, INDEX and DISP are null. | |
1263 | ||
1264 | - A {PRE,POST}_MODIFY of *BASE. In this case either INDEX or DISP | |
1265 | points to the step value, depending on whether the step is variable | |
1266 | or constant respectively. SEGMENT is null. | |
1267 | ||
1268 | - A plain sum of the form SEGMENT + BASE + INDEX + DISP, | |
1269 | with null fields evaluating to 0. */ | |
1270 | rtx *inner; | |
1271 | ||
1272 | /* Components that make up *INNER. Each one may be null or nonnull. | |
1273 | When nonnull, their meanings are as follows: | |
1274 | ||
1275 | - *SEGMENT is the "segment" of memory to which the address refers. | |
1276 | This value is entirely target-specific and is only called a "segment" | |
1277 | because that's its most typical use. It contains exactly one UNSPEC, | |
1278 | pointed to by SEGMENT_TERM. The contents of *SEGMENT do not need | |
1279 | reloading. | |
1280 | ||
1281 | - *BASE is a variable expression representing a base address. | |
1282 | It contains exactly one REG, SUBREG or MEM, pointed to by BASE_TERM. | |
1283 | ||
1284 | - *INDEX is a variable expression representing an index value. | |
1285 | It may be a scaled expression, such as a MULT. It has exactly | |
1286 | one REG, SUBREG or MEM, pointed to by INDEX_TERM. | |
1287 | ||
1288 | - *DISP is a constant, possibly mutated. DISP_TERM points to the | |
1289 | unmutated RTX_CONST_OBJ. */ | |
1290 | rtx *segment; | |
1291 | rtx *base; | |
1292 | rtx *index; | |
1293 | rtx *disp; | |
1294 | ||
1295 | rtx *segment_term; | |
1296 | rtx *base_term; | |
1297 | rtx *index_term; | |
1298 | rtx *disp_term; | |
1299 | ||
1300 | /* In a {PRE,POST}_MODIFY address, this points to a second copy | |
1301 | of BASE_TERM, otherwise it is null. */ | |
1302 | rtx *base_term2; | |
1303 | ||
1304 | /* ADDRESS if this structure describes an address operand, MEM if | |
1305 | it describes a MEM address. */ | |
1306 | enum rtx_code addr_outer_code; | |
1307 | ||
1308 | /* If BASE is nonnull, this is the code of the rtx that contains it. */ | |
1309 | enum rtx_code base_outer_code; | |
1310 | ||
1311 | /* True if this is an RTX_AUTOINC address. */ | |
1312 | bool autoinc_p; | |
1313 | }; | |
1314 | ||
a87cf6e5 | 1315 | extern void init_rtlanal (void); |
20d892d1 | 1316 | extern int rtx_cost (rtx, enum rtx_code, int, bool); |
bd1a81f7 | 1317 | extern int address_cost (rtx, enum machine_mode, addr_space_t, bool); |
20d892d1 | 1318 | extern void get_full_rtx_cost (rtx, enum rtx_code, int, |
1319 | struct full_rtx_costs *); | |
dd9b9fc5 | 1320 | extern unsigned int subreg_lsb (const_rtx); |
f36eb1e9 | 1321 | extern unsigned int subreg_lsb_1 (enum machine_mode, enum machine_mode, |
1322 | unsigned int); | |
3ad4992f | 1323 | extern unsigned int subreg_regno_offset (unsigned int, enum machine_mode, |
1324 | unsigned int, enum machine_mode); | |
1325 | extern bool subreg_offset_representable_p (unsigned int, enum machine_mode, | |
1326 | unsigned int, enum machine_mode); | |
dd9b9fc5 | 1327 | extern unsigned int subreg_regno (const_rtx); |
5992d16a | 1328 | extern int simplify_subreg_regno (unsigned int, enum machine_mode, |
1329 | unsigned int, enum machine_mode); | |
dd9b9fc5 | 1330 | extern unsigned int subreg_nregs (const_rtx); |
dea7b504 | 1331 | extern unsigned int subreg_nregs_with_regno (unsigned int, const_rtx); |
b7bf20db | 1332 | extern unsigned HOST_WIDE_INT nonzero_bits (const_rtx, enum machine_mode); |
1333 | extern unsigned int num_sign_bit_copies (const_rtx, enum machine_mode); | |
e207fd7a | 1334 | extern bool constant_pool_constant_p (rtx); |
b7bf20db | 1335 | extern bool truncated_to_mode (enum machine_mode, const_rtx); |
d16b48d5 | 1336 | extern int low_bitmask_len (enum machine_mode, unsigned HOST_WIDE_INT); |
21eb4639 | 1337 | extern void split_double (rtx, rtx *, rtx *); |
1efe9e9d | 1338 | extern rtx *strip_address_mutations (rtx *, enum rtx_code * = 0); |
1339 | extern void decompose_address (struct address_info *, rtx *, | |
1340 | enum machine_mode, addr_space_t, enum rtx_code); | |
1341 | extern void decompose_lea_address (struct address_info *, rtx *); | |
1342 | extern void decompose_mem_address (struct address_info *, rtx); | |
1343 | extern void update_address (struct address_info *); | |
1344 | extern HOST_WIDE_INT get_index_scale (const struct address_info *); | |
1345 | extern enum rtx_code get_index_code (const struct address_info *); | |
d263732c | 1346 | |
b72d459f | 1347 | #ifndef GENERATOR_FILE |
1348 | /* Return the cost of SET X. SPEED_P is true if optimizing for speed | |
1349 | rather than size. */ | |
1350 | ||
1351 | static inline int | |
1352 | set_rtx_cost (rtx x, bool speed_p) | |
1353 | { | |
20d892d1 | 1354 | return rtx_cost (x, INSN, 4, speed_p); |
b72d459f | 1355 | } |
1356 | ||
1357 | /* Like set_rtx_cost, but return both the speed and size costs in C. */ | |
1358 | ||
1359 | static inline void | |
1360 | get_full_set_rtx_cost (rtx x, struct full_rtx_costs *c) | |
1361 | { | |
20d892d1 | 1362 | get_full_rtx_cost (x, INSN, 4, c); |
b72d459f | 1363 | } |
7013e87c | 1364 | |
1365 | /* Return the cost of moving X into a register, relative to the cost | |
1366 | of a register move. SPEED_P is true if optimizing for speed rather | |
1367 | than size. */ | |
1368 | ||
1369 | static inline int | |
1370 | set_src_cost (rtx x, bool speed_p) | |
1371 | { | |
20d892d1 | 1372 | return rtx_cost (x, SET, 1, speed_p); |
7013e87c | 1373 | } |
1374 | ||
1375 | /* Like set_src_cost, but return both the speed and size costs in C. */ | |
1376 | ||
1377 | static inline void | |
1378 | get_full_set_src_cost (rtx x, struct full_rtx_costs *c) | |
1379 | { | |
20d892d1 | 1380 | get_full_rtx_cost (x, SET, 1, c); |
7013e87c | 1381 | } |
b72d459f | 1382 | #endif |
759bebca | 1383 | |
3c6858c6 | 1384 | /* 1 if RTX is a subreg containing a reg that is already known to be |
1385 | sign- or zero-extended from the mode of the subreg to the mode of | |
3e8eba79 | 1386 | the reg. SUBREG_PROMOTED_UNSIGNED_P gives the signedness of the |
f220c8f0 | 1387 | extension. |
3e8eba79 | 1388 | |
1389 | When used as a LHS, is means that this extension must be done | |
1390 | when assigning to SUBREG_REG. */ | |
1391 | ||
3c6858c6 | 1392 | #define SUBREG_PROMOTED_VAR_P(RTX) \ |
1393 | (RTL_FLAG_CHECK1("SUBREG_PROMOTED", (RTX), SUBREG)->in_struct) | |
1394 | ||
1395 | #define SUBREG_PROMOTED_UNSIGNED_SET(RTX, VAL) \ | |
1396 | do { \ | |
8d780c0b | 1397 | rtx const _rtx = RTL_FLAG_CHECK1("SUBREG_PROMOTED_UNSIGNED_SET", (RTX), SUBREG); \ |
3c6858c6 | 1398 | if ((VAL) < 0) \ |
8d780c0b | 1399 | _rtx->volatil = 1; \ |
3c6858c6 | 1400 | else { \ |
8d780c0b | 1401 | _rtx->volatil = 0; \ |
1402 | _rtx->unchanging = (VAL); \ | |
3c6858c6 | 1403 | } \ |
bfd242e8 | 1404 | } while (0) |
088c4b7b | 1405 | |
1406 | /* Valid for subregs which are SUBREG_PROMOTED_VAR_P(). In that case | |
1407 | this gives the necessary extensions: | |
1408 | 0 - signed | |
1409 | 1 - normal unsigned | |
1410 | -1 - pointer unsigned, which most often can be handled like unsigned | |
1411 | extension, except for generating instructions where we need to | |
1412 | emit special code (ptr_extend insns) on some architectures. */ | |
1413 | ||
e7f75e15 | 1414 | #define SUBREG_PROMOTED_UNSIGNED_P(RTX) \ |
3c6858c6 | 1415 | ((RTL_FLAG_CHECK1("SUBREG_PROMOTED_UNSIGNED_P", (RTX), SUBREG)->volatil) \ |
d8708296 | 1416 | ? -1 : (int) (RTX)->unchanging) |
3e8eba79 | 1417 | |
759bebca | 1418 | /* Access various components of an ASM_OPERANDS rtx. */ |
1419 | ||
017c31d6 | 1420 | #define ASM_OPERANDS_TEMPLATE(RTX) XCSTR (RTX, 0, ASM_OPERANDS) |
1421 | #define ASM_OPERANDS_OUTPUT_CONSTRAINT(RTX) XCSTR (RTX, 1, ASM_OPERANDS) | |
1422 | #define ASM_OPERANDS_OUTPUT_IDX(RTX) XCINT (RTX, 2, ASM_OPERANDS) | |
1423 | #define ASM_OPERANDS_INPUT_VEC(RTX) XCVEC (RTX, 3, ASM_OPERANDS) | |
1424 | #define ASM_OPERANDS_INPUT_CONSTRAINT_VEC(RTX) XCVEC (RTX, 4, ASM_OPERANDS) | |
1425 | #define ASM_OPERANDS_INPUT(RTX, N) XCVECEXP (RTX, 3, N, ASM_OPERANDS) | |
1426 | #define ASM_OPERANDS_INPUT_LENGTH(RTX) XCVECLEN (RTX, 3, ASM_OPERANDS) | |
d91f2122 | 1427 | #define ASM_OPERANDS_INPUT_CONSTRAINT_EXP(RTX, N) \ |
017c31d6 | 1428 | XCVECEXP (RTX, 4, N, ASM_OPERANDS) |
f7c44134 | 1429 | #define ASM_OPERANDS_INPUT_CONSTRAINT(RTX, N) \ |
017c31d6 | 1430 | XSTR (XCVECEXP (RTX, 4, N, ASM_OPERANDS), 0) |
f7c44134 | 1431 | #define ASM_OPERANDS_INPUT_MODE(RTX, N) \ |
017c31d6 | 1432 | GET_MODE (XCVECEXP (RTX, 4, N, ASM_OPERANDS)) |
78f55ca8 | 1433 | #define ASM_OPERANDS_LABEL_VEC(RTX) XCVEC (RTX, 5, ASM_OPERANDS) |
1434 | #define ASM_OPERANDS_LABEL_LENGTH(RTX) XCVECLEN (RTX, 5, ASM_OPERANDS) | |
1435 | #define ASM_OPERANDS_LABEL(RTX, N) XCVECEXP (RTX, 5, N, ASM_OPERANDS) | |
1436 | #define ASM_OPERANDS_SOURCE_LOCATION(RTX) XCUINT (RTX, 6, ASM_OPERANDS) | |
09fb10e8 | 1437 | #define ASM_INPUT_SOURCE_LOCATION(RTX) XCUINT (RTX, 1, ASM_INPUT) |
759bebca | 1438 | |
b04fab2a | 1439 | /* 1 if RTX is a mem that is statically allocated in read-only memory. */ |
1440 | #define MEM_READONLY_P(RTX) \ | |
1441 | (RTL_FLAG_CHECK1("MEM_READONLY_P", (RTX), MEM)->unchanging) | |
1442 | ||
3c6858c6 | 1443 | /* 1 if RTX is a mem and we should keep the alias set for this mem |
5cc193e7 | 1444 | unchanged when we access a component. Set to 1, or example, when we |
1445 | are already in a non-addressable component of an aggregate. */ | |
3c6858c6 | 1446 | #define MEM_KEEP_ALIAS_SET_P(RTX) \ |
1447 | (RTL_FLAG_CHECK1("MEM_KEEP_ALIAS_SET_P", (RTX), MEM)->jump) | |
5cc193e7 | 1448 | |
3c6858c6 | 1449 | /* 1 if RTX is a mem or asm_operand for a volatile reference. */ |
1450 | #define MEM_VOLATILE_P(RTX) \ | |
1451 | (RTL_FLAG_CHECK3("MEM_VOLATILE_P", (RTX), MEM, ASM_OPERANDS, \ | |
1452 | ASM_INPUT)->volatil) | |
759bebca | 1453 | |
1ed8ccdb | 1454 | /* 1 if RTX is a mem that cannot trap. */ |
1455 | #define MEM_NOTRAP_P(RTX) \ | |
1456 | (RTL_FLAG_CHECK1("MEM_NOTRAP_P", (RTX), MEM)->call) | |
1457 | ||
c6259b83 | 1458 | /* The memory attribute block. We provide access macros for each value |
1459 | in the block and provide defaults if none specified. */ | |
1460 | #define MEM_ATTRS(RTX) X0MEMATTR (RTX, 1) | |
1461 | ||
ca74b940 | 1462 | /* The register attribute block. We provide access macros for each value |
1463 | in the block and provide defaults if none specified. */ | |
1464 | #define REG_ATTRS(RTX) X0REGATTR (RTX, 2) | |
1465 | ||
d83fcaa1 | 1466 | #ifndef GENERATOR_FILE |
b5ba9f3a | 1467 | /* For a MEM rtx, the alias set. If 0, this MEM is not in any alias |
1468 | set, and may alias anything. Otherwise, the MEM can only alias | |
650e773f | 1469 | MEMs in a conflicting alias set. This value is set in a |
b5ba9f3a | 1470 | language-dependent manner in the front-end, and should not be |
650e773f | 1471 | altered in the back-end. These set numbers are tested with |
1472 | alias_sets_conflict_p. */ | |
d83fcaa1 | 1473 | #define MEM_ALIAS_SET(RTX) (get_mem_attrs (RTX)->alias) |
c6259b83 | 1474 | |
1475 | /* For a MEM rtx, the decl it is known to refer to, if it is known to | |
b10dbbca | 1476 | refer to part of a DECL. It may also be a COMPONENT_REF. */ |
d83fcaa1 | 1477 | #define MEM_EXPR(RTX) (get_mem_attrs (RTX)->expr) |
c6259b83 | 1478 | |
da443c27 | 1479 | /* For a MEM rtx, true if its MEM_OFFSET is known. */ |
6d58bcba | 1480 | #define MEM_OFFSET_KNOWN_P(RTX) (get_mem_attrs (RTX)->offset_known_p) |
da443c27 | 1481 | |
1482 | /* For a MEM rtx, the offset from the start of MEM_EXPR. */ | |
6d58bcba | 1483 | #define MEM_OFFSET(RTX) (get_mem_attrs (RTX)->offset) |
c6259b83 | 1484 | |
bd1a81f7 | 1485 | /* For a MEM rtx, the address space. */ |
d83fcaa1 | 1486 | #define MEM_ADDR_SPACE(RTX) (get_mem_attrs (RTX)->addrspace) |
bd1a81f7 | 1487 | |
5b2a69fa | 1488 | /* For a MEM rtx, true if its MEM_SIZE is known. */ |
6d58bcba | 1489 | #define MEM_SIZE_KNOWN_P(RTX) (get_mem_attrs (RTX)->size_known_p) |
5b2a69fa | 1490 | |
1491 | /* For a MEM rtx, the size in bytes of the MEM. */ | |
6d58bcba | 1492 | #define MEM_SIZE(RTX) (get_mem_attrs (RTX)->size) |
c6259b83 | 1493 | |
981336a3 | 1494 | /* For a MEM rtx, the alignment in bits. We can use the alignment of the |
1495 | mode as a default when STRICT_ALIGNMENT, but not if not. */ | |
d83fcaa1 | 1496 | #define MEM_ALIGN(RTX) (get_mem_attrs (RTX)->align) |
1497 | #else | |
1498 | #define MEM_ADDR_SPACE(RTX) ADDR_SPACE_GENERIC | |
1499 | #endif | |
f7c44134 | 1500 | |
ca74b940 | 1501 | /* For a REG rtx, the decl it is known to refer to, if it is known to |
1502 | refer to part of a DECL. */ | |
1503 | #define REG_EXPR(RTX) (REG_ATTRS (RTX) == 0 ? 0 : REG_ATTRS (RTX)->decl) | |
1504 | ||
eeb0ae23 | 1505 | /* For a REG rtx, the offset from the start of REG_EXPR, if known, as an |
1506 | HOST_WIDE_INT. */ | |
ca74b940 | 1507 | #define REG_OFFSET(RTX) (REG_ATTRS (RTX) == 0 ? 0 : REG_ATTRS (RTX)->offset) |
1508 | ||
f7c44134 | 1509 | /* Copy the attributes that apply to memory locations from RHS to LHS. */ |
5cc193e7 | 1510 | #define MEM_COPY_ATTRIBUTES(LHS, RHS) \ |
1511 | (MEM_VOLATILE_P (LHS) = MEM_VOLATILE_P (RHS), \ | |
1ed8ccdb | 1512 | MEM_NOTRAP_P (LHS) = MEM_NOTRAP_P (RHS), \ |
b04fab2a | 1513 | MEM_READONLY_P (LHS) = MEM_READONLY_P (RHS), \ |
5cc193e7 | 1514 | MEM_KEEP_ALIAS_SET_P (LHS) = MEM_KEEP_ALIAS_SET_P (RHS), \ |
c23c6f48 | 1515 | MEM_POINTER (LHS) = MEM_POINTER (RHS), \ |
c6259b83 | 1516 | MEM_ATTRS (LHS) = MEM_ATTRS (RHS)) |
b5ba9f3a | 1517 | |
3c6858c6 | 1518 | /* 1 if RTX is a label_ref for a nonlocal label. */ |
19d2fe05 | 1519 | /* Likewise in an expr_list for a REG_LABEL_OPERAND or |
1520 | REG_LABEL_TARGET note. */ | |
3c6858c6 | 1521 | #define LABEL_REF_NONLOCAL_P(RTX) \ |
590c3166 | 1522 | (RTL_FLAG_CHECK1("LABEL_REF_NONLOCAL_P", (RTX), LABEL_REF)->volatil) |
9a293e97 | 1523 | |
3c6858c6 | 1524 | /* 1 if RTX is a code_label that should always be considered to be needed. */ |
1525 | #define LABEL_PRESERVE_P(RTX) \ | |
1526 | (RTL_FLAG_CHECK2("LABEL_PRESERVE_P", (RTX), CODE_LABEL, NOTE)->in_struct) | |
759bebca | 1527 | |
3c6858c6 | 1528 | /* During sched, 1 if RTX is an insn that must be scheduled together |
f9e15121 | 1529 | with the preceding insn. */ |
3c6858c6 | 1530 | #define SCHED_GROUP_P(RTX) \ |
9845d120 | 1531 | (RTL_FLAG_CHECK4("SCHED_GROUP_P", (RTX), DEBUG_INSN, INSN, \ |
1532 | JUMP_INSN, CALL_INSN \ | |
1533 | )->in_struct) | |
759bebca | 1534 | |
1535 | /* For a SET rtx, SET_DEST is the place that is set | |
1536 | and SET_SRC is the value it is set to. */ | |
005d995b | 1537 | #define SET_DEST(RTX) XC2EXP(RTX, 0, SET, CLOBBER) |
1538 | #define SET_SRC(RTX) XCEXP(RTX, 1, SET) | |
3c6858c6 | 1539 | #define SET_IS_RETURN_P(RTX) \ |
1540 | (RTL_FLAG_CHECK1("SET_IS_RETURN_P", (RTX), SET)->jump) | |
759bebca | 1541 | |
1542 | /* For a TRAP_IF rtx, TRAP_CONDITION is an expression. */ | |
017c31d6 | 1543 | #define TRAP_CONDITION(RTX) XCEXP (RTX, 0, TRAP_IF) |
1544 | #define TRAP_CODE(RTX) XCEXP (RTX, 1, TRAP_IF) | |
759bebca | 1545 | |
406034fa | 1546 | /* For a COND_EXEC rtx, COND_EXEC_TEST is the condition to base |
1547 | conditionally executing the code on, COND_EXEC_CODE is the code | |
1548 | to execute if the condition is true. */ | |
017c31d6 | 1549 | #define COND_EXEC_TEST(RTX) XCEXP (RTX, 0, COND_EXEC) |
1550 | #define COND_EXEC_CODE(RTX) XCEXP (RTX, 1, COND_EXEC) | |
406034fa | 1551 | |
658782a5 | 1552 | /* 1 if RTX is a symbol_ref that addresses this function's rtl |
1553 | constants pool. */ | |
3c6858c6 | 1554 | #define CONSTANT_POOL_ADDRESS_P(RTX) \ |
1555 | (RTL_FLAG_CHECK1("CONSTANT_POOL_ADDRESS_P", (RTX), SYMBOL_REF)->unchanging) | |
759bebca | 1556 | |
658782a5 | 1557 | /* 1 if RTX is a symbol_ref that addresses a value in the file's |
1558 | tree constant pool. This information is private to varasm.c. */ | |
1559 | #define TREE_CONSTANT_POOL_ADDRESS_P(RTX) \ | |
1560 | (RTL_FLAG_CHECK1("TREE_CONSTANT_POOL_ADDRESS_P", \ | |
1561 | (RTX), SYMBOL_REF)->frame_related) | |
abf74c5b | 1562 | |
3c6858c6 | 1563 | /* Used if RTX is a symbol_ref, for machine-specific purposes. */ |
1564 | #define SYMBOL_REF_FLAG(RTX) \ | |
1565 | (RTL_FLAG_CHECK1("SYMBOL_REF_FLAG", (RTX), SYMBOL_REF)->volatil) | |
759bebca | 1566 | |
3c6858c6 | 1567 | /* 1 if RTX is a symbol_ref that has been the library function in |
1568 | emit_library_call. */ | |
1569 | #define SYMBOL_REF_USED(RTX) \ | |
1570 | (RTL_FLAG_CHECK1("SYMBOL_REF_USED", (RTX), SYMBOL_REF)->used) | |
759bebca | 1571 | |
3c6858c6 | 1572 | /* 1 if RTX is a symbol_ref for a weak symbol. */ |
1573 | #define SYMBOL_REF_WEAK(RTX) \ | |
4ee9c684 | 1574 | (RTL_FLAG_CHECK1("SYMBOL_REF_WEAK", (RTX), SYMBOL_REF)->return_val) |
67f79732 | 1575 | |
7c266bb1 | 1576 | /* A pointer attached to the SYMBOL_REF; either SYMBOL_REF_DECL or |
1577 | SYMBOL_REF_CONSTANT. */ | |
b864739b | 1578 | #define SYMBOL_REF_DATA(RTX) X0ANY ((RTX), 2) |
1579 | ||
1580 | /* Set RTX's SYMBOL_REF_DECL to DECL. RTX must not be a constant | |
1581 | pool symbol. */ | |
1582 | #define SET_SYMBOL_REF_DECL(RTX, DECL) \ | |
1583 | (gcc_assert (!CONSTANT_POOL_ADDRESS_P (RTX)), X0TREE ((RTX), 2) = (DECL)) | |
7c266bb1 | 1584 | |
b2fd8d52 | 1585 | /* The tree (decl or constant) associated with the symbol, or null. */ |
7c266bb1 | 1586 | #define SYMBOL_REF_DECL(RTX) \ |
1587 | (CONSTANT_POOL_ADDRESS_P (RTX) ? NULL : X0TREE ((RTX), 2)) | |
1588 | ||
b864739b | 1589 | /* Set RTX's SYMBOL_REF_CONSTANT to C. RTX must be a constant pool symbol. */ |
1590 | #define SET_SYMBOL_REF_CONSTANT(RTX, C) \ | |
1591 | (gcc_assert (CONSTANT_POOL_ADDRESS_P (RTX)), X0CONSTANT ((RTX), 2) = (C)) | |
1592 | ||
7c266bb1 | 1593 | /* The rtx constant pool entry for a symbol, or null. */ |
1594 | #define SYMBOL_REF_CONSTANT(RTX) \ | |
1595 | (CONSTANT_POOL_ADDRESS_P (RTX) ? X0CONSTANT ((RTX), 2) : NULL) | |
001be062 | 1596 | |
1597 | /* A set of flags on a symbol_ref that are, in some respects, redundant with | |
1598 | information derivable from the tree decl associated with this symbol. | |
1599 | Except that we build a *lot* of SYMBOL_REFs that aren't associated with a | |
1600 | decl. In some cases this is a bug. But beyond that, it's nice to cache | |
1601 | this information to avoid recomputing it. Finally, this allows space for | |
1602 | the target to store more than one bit of information, as with | |
1603 | SYMBOL_REF_FLAG. */ | |
1604 | #define SYMBOL_REF_FLAGS(RTX) X0INT ((RTX), 1) | |
1605 | ||
1606 | /* These flags are common enough to be defined for all targets. They | |
1607 | are computed by the default version of targetm.encode_section_info. */ | |
1608 | ||
1609 | /* Set if this symbol is a function. */ | |
1610 | #define SYMBOL_FLAG_FUNCTION (1 << 0) | |
1611 | #define SYMBOL_REF_FUNCTION_P(RTX) \ | |
1612 | ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_FUNCTION) != 0) | |
1613 | /* Set if targetm.binds_local_p is true. */ | |
1614 | #define SYMBOL_FLAG_LOCAL (1 << 1) | |
1615 | #define SYMBOL_REF_LOCAL_P(RTX) \ | |
1616 | ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_LOCAL) != 0) | |
1617 | /* Set if targetm.in_small_data_p is true. */ | |
1618 | #define SYMBOL_FLAG_SMALL (1 << 2) | |
1619 | #define SYMBOL_REF_SMALL_P(RTX) \ | |
1620 | ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_SMALL) != 0) | |
1621 | /* The three-bit field at [5:3] is true for TLS variables; use | |
1622 | SYMBOL_REF_TLS_MODEL to extract the field as an enum tls_model. */ | |
1623 | #define SYMBOL_FLAG_TLS_SHIFT 3 | |
1624 | #define SYMBOL_REF_TLS_MODEL(RTX) \ | |
9763286f | 1625 | ((enum tls_model) ((SYMBOL_REF_FLAGS (RTX) >> SYMBOL_FLAG_TLS_SHIFT) & 7)) |
001be062 | 1626 | /* Set if this symbol is not defined in this translation unit. */ |
1627 | #define SYMBOL_FLAG_EXTERNAL (1 << 6) | |
1628 | #define SYMBOL_REF_EXTERNAL_P(RTX) \ | |
1629 | ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_EXTERNAL) != 0) | |
f2d0e9f1 | 1630 | /* Set if this symbol has a block_symbol structure associated with it. */ |
6617cbc1 | 1631 | #define SYMBOL_FLAG_HAS_BLOCK_INFO (1 << 7) |
1632 | #define SYMBOL_REF_HAS_BLOCK_INFO_P(RTX) \ | |
1633 | ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_HAS_BLOCK_INFO) != 0) | |
f2d0e9f1 | 1634 | /* Set if this symbol is a section anchor. SYMBOL_REF_ANCHOR_P implies |
6617cbc1 | 1635 | SYMBOL_REF_HAS_BLOCK_INFO_P. */ |
f2d0e9f1 | 1636 | #define SYMBOL_FLAG_ANCHOR (1 << 8) |
1637 | #define SYMBOL_REF_ANCHOR_P(RTX) \ | |
1638 | ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_ANCHOR) != 0) | |
001be062 | 1639 | |
1640 | /* Subsequent bits are available for the target to use. */ | |
f2d0e9f1 | 1641 | #define SYMBOL_FLAG_MACH_DEP_SHIFT 9 |
5c5d0ae9 | 1642 | #define SYMBOL_FLAG_MACH_DEP (1 << SYMBOL_FLAG_MACH_DEP_SHIFT) |
001be062 | 1643 | |
6617cbc1 | 1644 | /* If SYMBOL_REF_HAS_BLOCK_INFO_P (RTX), this is the object_block |
1645 | structure to which the symbol belongs, or NULL if it has not been | |
1646 | assigned a block. */ | |
f2d0e9f1 | 1647 | #define SYMBOL_REF_BLOCK(RTX) (BLOCK_SYMBOL_CHECK (RTX)->block) |
1648 | ||
6617cbc1 | 1649 | /* If SYMBOL_REF_HAS_BLOCK_INFO_P (RTX), this is the offset of RTX from |
1650 | the first object in SYMBOL_REF_BLOCK (RTX). The value is negative if | |
1651 | RTX has not yet been assigned to a block, or it has not been given an | |
1652 | offset within that block. */ | |
f2d0e9f1 | 1653 | #define SYMBOL_REF_BLOCK_OFFSET(RTX) (BLOCK_SYMBOL_CHECK (RTX)->offset) |
1654 | ||
6540132c | 1655 | /* True if RTX is flagged to be a scheduling barrier. */ |
1656 | #define PREFETCH_SCHEDULE_BARRIER_P(RTX) \ | |
1657 | (RTL_FLAG_CHECK1("PREFETCH_SCHEDULE_BARRIER_P", (RTX), PREFETCH)->volatil) | |
1658 | ||
3072d30e | 1659 | /* Indicate whether the machine has any sort of auto increment addressing. |
1660 | If not, we can avoid checking for REG_INC notes. */ | |
1661 | ||
1662 | #if (defined (HAVE_PRE_INCREMENT) || defined (HAVE_PRE_DECREMENT) \ | |
1663 | || defined (HAVE_POST_INCREMENT) || defined (HAVE_POST_DECREMENT) \ | |
1664 | || defined (HAVE_PRE_MODIFY_DISP) || defined (HAVE_PRE_MODIFY_DISP) \ | |
1665 | || defined (HAVE_PRE_MODIFY_REG) || defined (HAVE_POST_MODIFY_REG)) | |
1666 | #define AUTO_INC_DEC | |
1667 | #endif | |
1668 | ||
759bebca | 1669 | /* Define a macro to look for REG_INC notes, |
1670 | but save time on machines where they never exist. */ | |
1671 | ||
3072d30e | 1672 | #ifdef AUTO_INC_DEC |
017c31d6 | 1673 | #define FIND_REG_INC_NOTE(INSN, REG) \ |
1674 | ((REG) != NULL_RTX && REG_P ((REG)) \ | |
1675 | ? find_regno_note ((INSN), REG_INC, REGNO (REG)) \ | |
1676 | : find_reg_note ((INSN), REG_INC, (REG))) | |
759bebca | 1677 | #else |
017c31d6 | 1678 | #define FIND_REG_INC_NOTE(INSN, REG) 0 |
759bebca | 1679 | #endif |
1680 | ||
e4e498cf | 1681 | #ifndef HAVE_PRE_INCREMENT |
1682 | #define HAVE_PRE_INCREMENT 0 | |
1683 | #endif | |
1684 | ||
1685 | #ifndef HAVE_PRE_DECREMENT | |
1686 | #define HAVE_PRE_DECREMENT 0 | |
1687 | #endif | |
1688 | ||
1689 | #ifndef HAVE_POST_INCREMENT | |
1690 | #define HAVE_POST_INCREMENT 0 | |
1691 | #endif | |
1692 | ||
1693 | #ifndef HAVE_POST_DECREMENT | |
1694 | #define HAVE_POST_DECREMENT 0 | |
1695 | #endif | |
1696 | ||
40988080 | 1697 | #ifndef HAVE_POST_MODIFY_DISP |
1698 | #define HAVE_POST_MODIFY_DISP 0 | |
1699 | #endif | |
1700 | ||
1701 | #ifndef HAVE_POST_MODIFY_REG | |
1702 | #define HAVE_POST_MODIFY_REG 0 | |
1703 | #endif | |
1704 | ||
1705 | #ifndef HAVE_PRE_MODIFY_DISP | |
1706 | #define HAVE_PRE_MODIFY_DISP 0 | |
1707 | #endif | |
1708 | ||
1709 | #ifndef HAVE_PRE_MODIFY_REG | |
1710 | #define HAVE_PRE_MODIFY_REG 0 | |
1711 | #endif | |
1712 | ||
c14ad648 | 1713 | |
1714 | /* Some architectures do not have complete pre/post increment/decrement | |
1715 | instruction sets, or only move some modes efficiently. These macros | |
1716 | allow us to tune autoincrement generation. */ | |
1717 | ||
1718 | #ifndef USE_LOAD_POST_INCREMENT | |
1719 | #define USE_LOAD_POST_INCREMENT(MODE) HAVE_POST_INCREMENT | |
1720 | #endif | |
1721 | ||
1722 | #ifndef USE_LOAD_POST_DECREMENT | |
1723 | #define USE_LOAD_POST_DECREMENT(MODE) HAVE_POST_DECREMENT | |
1724 | #endif | |
1725 | ||
1726 | #ifndef USE_LOAD_PRE_INCREMENT | |
1727 | #define USE_LOAD_PRE_INCREMENT(MODE) HAVE_PRE_INCREMENT | |
1728 | #endif | |
1729 | ||
1730 | #ifndef USE_LOAD_PRE_DECREMENT | |
1731 | #define USE_LOAD_PRE_DECREMENT(MODE) HAVE_PRE_DECREMENT | |
1732 | #endif | |
1733 | ||
1734 | #ifndef USE_STORE_POST_INCREMENT | |
1735 | #define USE_STORE_POST_INCREMENT(MODE) HAVE_POST_INCREMENT | |
1736 | #endif | |
1737 | ||
1738 | #ifndef USE_STORE_POST_DECREMENT | |
1739 | #define USE_STORE_POST_DECREMENT(MODE) HAVE_POST_DECREMENT | |
1740 | #endif | |
1741 | ||
1742 | #ifndef USE_STORE_PRE_INCREMENT | |
1743 | #define USE_STORE_PRE_INCREMENT(MODE) HAVE_PRE_INCREMENT | |
1744 | #endif | |
1745 | ||
1746 | #ifndef USE_STORE_PRE_DECREMENT | |
1747 | #define USE_STORE_PRE_DECREMENT(MODE) HAVE_PRE_DECREMENT | |
1748 | #endif | |
759bebca | 1749 | \f |
316bc009 | 1750 | /* Nonzero when we are generating CONCATs. */ |
1751 | extern int generating_concat_p; | |
1752 | ||
723c0ee7 | 1753 | /* Nonzero when we are expanding trees to RTL. */ |
1754 | extern int currently_expanding_to_rtl; | |
1755 | ||
759bebca | 1756 | /* Generally useful functions. */ |
1757 | ||
ebd9163c | 1758 | /* In explow.c */ |
3ad4992f | 1759 | extern HOST_WIDE_INT trunc_int_for_mode (HOST_WIDE_INT, enum machine_mode); |
29c05e22 | 1760 | extern rtx plus_constant (enum machine_mode, rtx, HOST_WIDE_INT); |
1bb04728 | 1761 | |
9588521d | 1762 | /* In rtl.c */ |
674b05f5 | 1763 | extern rtx rtx_alloc_stat (RTX_CODE MEM_STAT_DECL); |
1764 | #define rtx_alloc(c) rtx_alloc_stat (c MEM_STAT_INFO) | |
1765 | ||
3ad4992f | 1766 | extern rtvec rtvec_alloc (int); |
b447ca78 | 1767 | extern rtvec shallow_copy_rtvec (rtvec); |
dd9b9fc5 | 1768 | extern bool shared_const_p (const_rtx); |
3ad4992f | 1769 | extern rtx copy_rtx (rtx); |
86736f9e | 1770 | extern void dump_rtx_statistics (void); |
9588521d | 1771 | |
1772 | /* In emit-rtl.c */ | |
3ad4992f | 1773 | extern rtx copy_rtx_if_shared (rtx); |
9588521d | 1774 | |
1775 | /* In rtl.c */ | |
dd9b9fc5 | 1776 | extern unsigned int rtx_size (const_rtx); |
1777 | extern rtx shallow_copy_rtx_stat (const_rtx MEM_STAT_DECL); | |
674b05f5 | 1778 | #define shallow_copy_rtx(a) shallow_copy_rtx_stat (a MEM_STAT_INFO) |
dd9b9fc5 | 1779 | extern int rtx_equal_p (const_rtx, const_rtx); |
09279218 | 1780 | extern hashval_t iterative_hash_rtx (const_rtx, hashval_t); |
9588521d | 1781 | |
1782 | /* In emit-rtl.c */ | |
3ad4992f | 1783 | extern rtvec gen_rtvec_v (int, rtx *); |
1784 | extern rtx gen_reg_rtx (enum machine_mode); | |
1785 | extern rtx gen_rtx_REG_offset (rtx, enum machine_mode, unsigned int, int); | |
1a6a0f2a | 1786 | extern rtx gen_reg_rtx_offset (rtx, enum machine_mode, int); |
ae12ddda | 1787 | extern rtx gen_reg_rtx_and_attrs (rtx); |
3ad4992f | 1788 | extern rtx gen_label_rtx (void); |
3ad4992f | 1789 | extern rtx gen_lowpart_common (enum machine_mode, rtx); |
9588521d | 1790 | |
1791 | /* In cse.c */ | |
3ad4992f | 1792 | extern rtx gen_lowpart_if_possible (enum machine_mode, rtx); |
9588521d | 1793 | |
1794 | /* In emit-rtl.c */ | |
3ad4992f | 1795 | extern rtx gen_highpart (enum machine_mode, rtx); |
1796 | extern rtx gen_highpart_mode (enum machine_mode, enum machine_mode, rtx); | |
3ad4992f | 1797 | extern rtx operand_subword (rtx, unsigned int, int, enum machine_mode); |
9588521d | 1798 | |
1799 | /* In emit-rtl.c */ | |
3ad4992f | 1800 | extern rtx operand_subword_force (rtx, unsigned int, enum machine_mode); |
b537bfdb | 1801 | extern bool paradoxical_subreg_p (const_rtx); |
b7bf20db | 1802 | extern int subreg_lowpart_p (const_rtx); |
3ad4992f | 1803 | extern unsigned int subreg_lowpart_offset (enum machine_mode, |
1804 | enum machine_mode); | |
1805 | extern unsigned int subreg_highpart_offset (enum machine_mode, | |
1806 | enum machine_mode); | |
80c70e76 | 1807 | extern int byte_lowpart_offset (enum machine_mode, enum machine_mode); |
3ad4992f | 1808 | extern rtx make_safe_from (rtx, rtx); |
98155838 | 1809 | extern rtx convert_memory_address_addr_space (enum machine_mode, rtx, |
1810 | addr_space_t); | |
1811 | #define convert_memory_address(to_mode,x) \ | |
1812 | convert_memory_address_addr_space ((to_mode), (x), ADDR_SPACE_GENERIC) | |
3ad4992f | 1813 | extern const char *get_insn_name (int); |
3ad4992f | 1814 | extern rtx get_last_insn_anywhere (void); |
1815 | extern rtx get_first_nonnote_insn (void); | |
1816 | extern rtx get_last_nonnote_insn (void); | |
1817 | extern void start_sequence (void); | |
1818 | extern void push_to_sequence (rtx); | |
28bf151d | 1819 | extern void push_to_sequence2 (rtx, rtx); |
3ad4992f | 1820 | extern void end_sequence (void); |
33274180 | 1821 | extern double_int rtx_to_double_int (const_rtx); |
3e052aec | 1822 | extern rtx immed_double_int_const (double_int, enum machine_mode); |
3ad4992f | 1823 | extern rtx immed_double_const (HOST_WIDE_INT, HOST_WIDE_INT, |
1824 | enum machine_mode); | |
791172c5 | 1825 | |
cde5a3a0 | 1826 | /* In loop-iv.c */ |
1827 | ||
1828 | extern rtx lowpart_subreg (enum machine_mode, rtx, enum machine_mode); | |
1829 | ||
791172c5 | 1830 | /* In varasm.c */ |
3ad4992f | 1831 | extern rtx force_const_mem (enum machine_mode, rtx); |
9588521d | 1832 | |
9588521d | 1833 | /* In varasm.c */ |
fdef3332 | 1834 | |
1835 | struct function; | |
3ad4992f | 1836 | extern rtx get_pool_constant (rtx); |
1837 | extern rtx get_pool_constant_mark (rtx, bool *); | |
dd9b9fc5 | 1838 | extern enum machine_mode get_pool_mode (const_rtx); |
3ad4992f | 1839 | extern rtx simplify_subtraction (rtx); |
756dcd13 | 1840 | extern void decide_function_section (tree); |
9588521d | 1841 | |
1842 | /* In function.c */ | |
3ad4992f | 1843 | extern rtx assign_stack_local (enum machine_mode, HOST_WIDE_INT, int); |
943d8723 | 1844 | #define ASLK_REDUCE_ALIGN 1 |
1845 | #define ASLK_RECORD_PAD 2 | |
1846 | extern rtx assign_stack_local_1 (enum machine_mode, HOST_WIDE_INT, int, int); | |
0ab48139 | 1847 | extern rtx assign_stack_temp (enum machine_mode, HOST_WIDE_INT); |
1848 | extern rtx assign_stack_temp_for_type (enum machine_mode, HOST_WIDE_INT, tree); | |
1849 | extern rtx assign_temp (tree, int, int); | |
0a3b3d88 | 1850 | |
9588521d | 1851 | /* In emit-rtl.c */ |
3ad4992f | 1852 | extern rtx emit_insn_before (rtx, rtx); |
161dfa6e | 1853 | extern rtx emit_insn_before_noloc (rtx, rtx, basic_block); |
3ad4992f | 1854 | extern rtx emit_insn_before_setloc (rtx, rtx, int); |
1855 | extern rtx emit_jump_insn_before (rtx, rtx); | |
0891f67c | 1856 | extern rtx emit_jump_insn_before_noloc (rtx, rtx); |
3ad4992f | 1857 | extern rtx emit_jump_insn_before_setloc (rtx, rtx, int); |
1858 | extern rtx emit_call_insn_before (rtx, rtx); | |
0891f67c | 1859 | extern rtx emit_call_insn_before_noloc (rtx, rtx); |
3ad4992f | 1860 | extern rtx emit_call_insn_before_setloc (rtx, rtx, int); |
9845d120 | 1861 | extern rtx emit_debug_insn_before (rtx, rtx); |
1862 | extern rtx emit_debug_insn_before_noloc (rtx, rtx); | |
1863 | extern rtx emit_debug_insn_before_setloc (rtx, rtx, int); | |
3ad4992f | 1864 | extern rtx emit_barrier_before (rtx); |
1865 | extern rtx emit_label_before (rtx, rtx); | |
ad4583d9 | 1866 | extern rtx emit_note_before (enum insn_note, rtx); |
3ad4992f | 1867 | extern rtx emit_insn_after (rtx, rtx); |
161dfa6e | 1868 | extern rtx emit_insn_after_noloc (rtx, rtx, basic_block); |
3ad4992f | 1869 | extern rtx emit_insn_after_setloc (rtx, rtx, int); |
1870 | extern rtx emit_jump_insn_after (rtx, rtx); | |
0891f67c | 1871 | extern rtx emit_jump_insn_after_noloc (rtx, rtx); |
3ad4992f | 1872 | extern rtx emit_jump_insn_after_setloc (rtx, rtx, int); |
1873 | extern rtx emit_call_insn_after (rtx, rtx); | |
0891f67c | 1874 | extern rtx emit_call_insn_after_noloc (rtx, rtx); |
3ad4992f | 1875 | extern rtx emit_call_insn_after_setloc (rtx, rtx, int); |
9845d120 | 1876 | extern rtx emit_debug_insn_after (rtx, rtx); |
1877 | extern rtx emit_debug_insn_after_noloc (rtx, rtx); | |
1878 | extern rtx emit_debug_insn_after_setloc (rtx, rtx, int); | |
3ad4992f | 1879 | extern rtx emit_barrier_after (rtx); |
1880 | extern rtx emit_label_after (rtx, rtx); | |
ad4583d9 | 1881 | extern rtx emit_note_after (enum insn_note, rtx); |
3ad4992f | 1882 | extern rtx emit_insn (rtx); |
9845d120 | 1883 | extern rtx emit_debug_insn (rtx); |
3ad4992f | 1884 | extern rtx emit_jump_insn (rtx); |
1885 | extern rtx emit_call_insn (rtx); | |
1886 | extern rtx emit_label (rtx); | |
1887 | extern rtx emit_barrier (void); | |
ad4583d9 | 1888 | extern rtx emit_note (enum insn_note); |
3ad4992f | 1889 | extern rtx emit_note_copy (rtx); |
18b42941 | 1890 | extern rtx gen_clobber (rtx); |
1891 | extern rtx emit_clobber (rtx); | |
1892 | extern rtx gen_use (rtx); | |
1893 | extern rtx emit_use (rtx); | |
3ad4992f | 1894 | extern rtx make_insn_raw (rtx); |
1895 | extern void add_function_usage_to (rtx, rtx); | |
1896 | extern rtx last_call_insn (void); | |
1897 | extern rtx previous_insn (rtx); | |
1898 | extern rtx next_insn (rtx); | |
1899 | extern rtx prev_nonnote_insn (rtx); | |
bcc66782 | 1900 | extern rtx prev_nonnote_insn_bb (rtx); |
3ad4992f | 1901 | extern rtx next_nonnote_insn (rtx); |
c4d13c5c | 1902 | extern rtx next_nonnote_insn_bb (rtx); |
9845d120 | 1903 | extern rtx prev_nondebug_insn (rtx); |
1904 | extern rtx next_nondebug_insn (rtx); | |
5b8537a8 | 1905 | extern rtx prev_nonnote_nondebug_insn (rtx); |
1906 | extern rtx next_nonnote_nondebug_insn (rtx); | |
3ad4992f | 1907 | extern rtx prev_real_insn (rtx); |
1908 | extern rtx next_real_insn (rtx); | |
1909 | extern rtx prev_active_insn (rtx); | |
1910 | extern rtx next_active_insn (rtx); | |
52d07779 | 1911 | extern int active_insn_p (const_rtx); |
3ad4992f | 1912 | extern rtx next_label (rtx); |
67c5e2a9 | 1913 | extern rtx skip_consecutive_labels (rtx); |
3ad4992f | 1914 | extern rtx next_cc0_user (rtx); |
1915 | extern rtx prev_cc0_setter (rtx); | |
9588521d | 1916 | |
23a070f3 | 1917 | /* In emit-rtl.c */ |
dd9b9fc5 | 1918 | extern int insn_line (const_rtx); |
1919 | extern const char * insn_file (const_rtx); | |
23a070f3 | 1920 | extern tree insn_scope (const_rtx); |
5169661d | 1921 | extern location_t prologue_location, epilogue_location; |
84c71503 | 1922 | |
9588521d | 1923 | /* In jump.c */ |
3ad4992f | 1924 | extern enum rtx_code reverse_condition (enum rtx_code); |
1925 | extern enum rtx_code reverse_condition_maybe_unordered (enum rtx_code); | |
1926 | extern enum rtx_code swap_condition (enum rtx_code); | |
1927 | extern enum rtx_code unsigned_condition (enum rtx_code); | |
1928 | extern enum rtx_code signed_condition (enum rtx_code); | |
1929 | extern void mark_jump_label (rtx, rtx, int); | |
2a1990e9 | 1930 | extern unsigned int cleanup_barriers (void); |
9588521d | 1931 | |
9588521d | 1932 | /* In jump.c */ |
3ad4992f | 1933 | extern rtx delete_related_insns (rtx); |
9588521d | 1934 | |
1935 | /* In recog.c */ | |
3ad4992f | 1936 | extern rtx *find_constant_term_loc (rtx *); |
9588521d | 1937 | |
1938 | /* In emit-rtl.c */ | |
3ad4992f | 1939 | extern rtx try_split (rtx, rtx, int); |
3cd757b1 | 1940 | extern int split_branch_probability; |
9588521d | 1941 | |
1942 | /* In unknown file */ | |
3ad4992f | 1943 | extern rtx split_insns (rtx, rtx); |
9588521d | 1944 | |
1945 | /* In simplify-rtx.c */ | |
3b723a04 | 1946 | extern rtx simplify_const_unary_operation (enum rtx_code, enum machine_mode, |
1947 | rtx, enum machine_mode); | |
3ad4992f | 1948 | extern rtx simplify_unary_operation (enum rtx_code, enum machine_mode, rtx, |
1949 | enum machine_mode); | |
3b723a04 | 1950 | extern rtx simplify_const_binary_operation (enum rtx_code, enum machine_mode, |
1951 | rtx, rtx); | |
3ad4992f | 1952 | extern rtx simplify_binary_operation (enum rtx_code, enum machine_mode, rtx, |
1953 | rtx); | |
1954 | extern rtx simplify_ternary_operation (enum rtx_code, enum machine_mode, | |
1955 | enum machine_mode, rtx, rtx, rtx); | |
089b4730 | 1956 | extern rtx simplify_const_relational_operation (enum rtx_code, |
1957 | enum machine_mode, rtx, rtx); | |
3ad4992f | 1958 | extern rtx simplify_relational_operation (enum rtx_code, enum machine_mode, |
089b4730 | 1959 | enum machine_mode, rtx, rtx); |
3ad4992f | 1960 | extern rtx simplify_gen_binary (enum rtx_code, enum machine_mode, rtx, rtx); |
1961 | extern rtx simplify_gen_unary (enum rtx_code, enum machine_mode, rtx, | |
1962 | enum machine_mode); | |
1963 | extern rtx simplify_gen_ternary (enum rtx_code, enum machine_mode, | |
1964 | enum machine_mode, rtx, rtx, rtx); | |
1965 | extern rtx simplify_gen_relational (enum rtx_code, enum machine_mode, | |
1966 | enum machine_mode, rtx, rtx); | |
1967 | extern rtx simplify_subreg (enum machine_mode, rtx, enum machine_mode, | |
1968 | unsigned int); | |
1969 | extern rtx simplify_gen_subreg (enum machine_mode, rtx, enum machine_mode, | |
1970 | unsigned int); | |
bf4652ac | 1971 | extern rtx simplify_replace_fn_rtx (rtx, const_rtx, |
35af0188 | 1972 | rtx (*fn) (rtx, const_rtx, void *), void *); |
dd9b9fc5 | 1973 | extern rtx simplify_replace_rtx (rtx, const_rtx, rtx); |
9f627b1a | 1974 | extern rtx simplify_rtx (const_rtx); |
3ad4992f | 1975 | extern rtx avoid_constant_pool_reference (rtx); |
9845d120 | 1976 | extern rtx delegitimize_mem_from_attrs (rtx); |
dd9b9fc5 | 1977 | extern bool mode_signbit_p (enum machine_mode, const_rtx); |
f92430e0 | 1978 | extern bool val_signbit_p (enum machine_mode, unsigned HOST_WIDE_INT); |
1979 | extern bool val_signbit_known_set_p (enum machine_mode, | |
1980 | unsigned HOST_WIDE_INT); | |
1981 | extern bool val_signbit_known_clear_p (enum machine_mode, | |
1982 | unsigned HOST_WIDE_INT); | |
9588521d | 1983 | |
ac502adf | 1984 | /* In reginfo.c */ |
b805295e | 1985 | extern enum machine_mode choose_hard_reg_mode (unsigned int, unsigned int, |
1986 | bool); | |
9588521d | 1987 | |
1988 | /* In emit-rtl.c */ | |
3ad4992f | 1989 | extern rtx set_unique_reg_note (rtx, enum reg_note, rtx); |
41cf444a | 1990 | extern rtx set_dst_reg_note (rtx, enum reg_note, rtx, rtx); |
3072d30e | 1991 | extern void set_insn_deleted (rtx); |
ea0cb7ae | 1992 | |
0dbd1c74 | 1993 | /* Functions in rtlanal.c */ |
1994 | ||
6531eca9 | 1995 | /* Single set is implemented as macro for performance reasons. */ |
1996 | #define single_set(I) (INSN_P (I) \ | |
1997 | ? (GET_CODE (PATTERN (I)) == SET \ | |
1998 | ? PATTERN (I) : single_set_1 (I)) \ | |
1999 | : NULL_RTX) | |
a0bb0d20 | 2000 | #define single_set_1(I) single_set_2 (I, PATTERN (I)) |
6531eca9 | 2001 | |
f2756aab | 2002 | /* Structure used for passing data to REPLACE_LABEL. */ |
cda612f5 | 2003 | typedef struct replace_label_data |
f2756aab | 2004 | { |
2005 | rtx r1; | |
2006 | rtx r2; | |
cda612f5 | 2007 | bool update_label_nuses; |
2008 | } replace_label_data; | |
f2756aab | 2009 | |
87cf5753 | 2010 | extern enum machine_mode get_address_mode (rtx mem); |
dd9b9fc5 | 2011 | extern int rtx_addr_can_trap_p (const_rtx); |
2012 | extern bool nonzero_address_p (const_rtx); | |
2013 | extern int rtx_unstable_p (const_rtx); | |
52d07779 | 2014 | extern bool rtx_varies_p (const_rtx, bool); |
2015 | extern bool rtx_addr_varies_p (const_rtx, bool); | |
cf7fb72d | 2016 | extern rtx get_call_rtx_from (rtx); |
dd9b9fc5 | 2017 | extern HOST_WIDE_INT get_integer_term (const_rtx); |
2018 | extern rtx get_related_value (const_rtx); | |
2019 | extern bool offset_within_block_p (const_rtx, HOST_WIDE_INT); | |
e0ab7256 | 2020 | extern void split_const (rtx, rtx *, rtx *); |
0a98b6d9 | 2021 | extern bool unsigned_reg_p (rtx); |
dd9b9fc5 | 2022 | extern int reg_mentioned_p (const_rtx, const_rtx); |
2023 | extern int count_occurrences (const_rtx, const_rtx, int); | |
2024 | extern int reg_referenced_p (const_rtx, const_rtx); | |
2025 | extern int reg_used_between_p (const_rtx, const_rtx, const_rtx); | |
7ecb5bb2 | 2026 | extern int reg_set_between_p (const_rtx, const_rtx, const_rtx); |
3ad4992f | 2027 | extern int commutative_operand_precedence (rtx); |
1f3b83af | 2028 | extern bool swap_commutative_operands_p (rtx, rtx); |
5493cb9a | 2029 | extern int modified_between_p (const_rtx, const_rtx, const_rtx); |
dd9b9fc5 | 2030 | extern int no_labels_between_p (const_rtx, const_rtx); |
5493cb9a | 2031 | extern int modified_in_p (const_rtx, const_rtx); |
7ecb5bb2 | 2032 | extern int reg_set_p (const_rtx, const_rtx); |
dd9b9fc5 | 2033 | extern rtx single_set_2 (const_rtx, const_rtx); |
2034 | extern int multiple_sets (const_rtx); | |
2035 | extern int set_noop_p (const_rtx); | |
b7bf20db | 2036 | extern int noop_move_p (const_rtx); |
3ad4992f | 2037 | extern rtx find_last_value (rtx, rtx *, rtx, int); |
dd9b9fc5 | 2038 | extern int refers_to_regno_p (unsigned int, unsigned int, const_rtx, rtx *); |
2039 | extern int reg_overlap_mentioned_p (const_rtx, const_rtx); | |
81a410b1 | 2040 | extern const_rtx set_of (const_rtx, const_rtx); |
effd1640 | 2041 | extern void record_hard_reg_sets (rtx, const_rtx, void *); |
2042 | extern void record_hard_reg_uses (rtx *, void *); | |
2043 | #ifdef HARD_CONST | |
2044 | extern void find_all_hard_reg_sets (const_rtx, HARD_REG_SET *); | |
2045 | #endif | |
81a410b1 | 2046 | extern void note_stores (const_rtx, void (*) (rtx, const_rtx, void *), void *); |
3ad4992f | 2047 | extern void note_uses (rtx *, void (*) (rtx *, void *), void *); |
dd9b9fc5 | 2048 | extern int dead_or_set_p (const_rtx, const_rtx); |
2049 | extern int dead_or_set_regno_p (const_rtx, unsigned int); | |
2050 | extern rtx find_reg_note (const_rtx, enum reg_note, const_rtx); | |
2051 | extern rtx find_regno_note (const_rtx, enum reg_note, unsigned int); | |
2052 | extern rtx find_reg_equal_equiv_note (const_rtx); | |
2053 | extern rtx find_constant_src (const_rtx); | |
2054 | extern int find_reg_fusage (const_rtx, enum rtx_code, const_rtx); | |
2055 | extern int find_regno_fusage (const_rtx, enum rtx_code, unsigned int); | |
5859ee98 | 2056 | extern rtx alloc_reg_note (enum reg_note, rtx, rtx); |
a1ddb869 | 2057 | extern void add_reg_note (rtx, enum reg_note, rtx); |
dd9b9fc5 | 2058 | extern void remove_note (rtx, const_rtx); |
f16feee2 | 2059 | extern void remove_reg_equal_equiv_notes (rtx); |
09669349 | 2060 | extern void remove_reg_equal_equiv_notes_for_regno (unsigned int); |
dd9b9fc5 | 2061 | extern int side_effects_p (const_rtx); |
2062 | extern int volatile_refs_p (const_rtx); | |
2063 | extern int volatile_insn_p (const_rtx); | |
77ad8e5a | 2064 | extern int may_trap_p_1 (const_rtx, unsigned); |
dd9b9fc5 | 2065 | extern int may_trap_p (const_rtx); |
dd9b9fc5 | 2066 | extern int may_trap_or_fault_p (const_rtx); |
e38def9c | 2067 | extern bool can_throw_internal (const_rtx); |
2068 | extern bool can_throw_external (const_rtx); | |
2069 | extern bool insn_could_throw_p (const_rtx); | |
2070 | extern bool insn_nothrow_p (const_rtx); | |
2071 | extern bool can_nonlocal_goto (const_rtx); | |
2072 | extern void copy_reg_eh_region_note_forward (rtx, rtx, rtx); | |
2073 | extern void copy_reg_eh_region_note_backward(rtx, rtx, rtx); | |
dd9b9fc5 | 2074 | extern int inequality_comparisons_p (const_rtx); |
3ad4992f | 2075 | extern rtx replace_rtx (rtx, rtx, rtx); |
3ad4992f | 2076 | extern int replace_label (rtx *, void *); |
2077 | extern int rtx_referenced_p (rtx, rtx); | |
dd9b9fc5 | 2078 | extern bool tablejump_p (const_rtx, rtx *, rtx *); |
2079 | extern int computed_jump_p (const_rtx); | |
e1ab7874 | 2080 | |
3ad4992f | 2081 | typedef int (*rtx_function) (rtx *, void *); |
2082 | extern int for_each_rtx (rtx *, rtx_function, void *); | |
e1ab7874 | 2083 | |
1f864115 | 2084 | /* Callback for for_each_inc_dec, to process the autoinc operation OP |
2085 | within MEM that sets DEST to SRC + SRCOFF, or SRC if SRCOFF is | |
2086 | NULL. The callback is passed the same opaque ARG passed to | |
2087 | for_each_inc_dec. Return zero to continue looking for other | |
2088 | autoinc operations, -1 to skip OP's operands, and any other value | |
2089 | to interrupt the traversal and return that value to the caller of | |
2090 | for_each_inc_dec. */ | |
2091 | typedef int (*for_each_inc_dec_fn) (rtx mem, rtx op, rtx dest, rtx src, | |
2092 | rtx srcoff, void *arg); | |
2093 | extern int for_each_inc_dec (rtx *, for_each_inc_dec_fn, void *arg); | |
2094 | ||
e1ab7874 | 2095 | typedef int (*rtx_equal_p_callback_function) (const_rtx *, const_rtx *, |
2096 | rtx *, rtx *); | |
2097 | extern int rtx_equal_p_cb (const_rtx, const_rtx, | |
2098 | rtx_equal_p_callback_function); | |
2099 | ||
2100 | typedef int (*hash_rtx_callback_function) (const_rtx, enum machine_mode, rtx *, | |
2101 | enum machine_mode *); | |
2102 | extern unsigned hash_rtx_cb (const_rtx, enum machine_mode, int *, int *, | |
2103 | bool, hash_rtx_callback_function); | |
2104 | ||
3ad4992f | 2105 | extern rtx regno_use_in (unsigned int, rtx); |
dd9b9fc5 | 2106 | extern int auto_inc_p (const_rtx); |
2107 | extern int in_expr_list_p (const_rtx, const_rtx); | |
2108 | extern void remove_node_from_expr_list (const_rtx, rtx *); | |
2109 | extern int loc_mentioned_in_p (rtx *, const_rtx); | |
3ad4992f | 2110 | extern rtx find_first_parameter_load (rtx, rtx); |
5493cb9a | 2111 | extern bool keep_with_call_p (const_rtx); |
dd9b9fc5 | 2112 | extern bool label_is_jump_target_p (const_rtx, const_rtx); |
f529eb25 | 2113 | extern int insn_rtx_cost (rtx, bool); |
759bebca | 2114 | |
ea92ba80 | 2115 | /* Given an insn and condition, return a canonical description of |
2116 | the test being made. */ | |
2117 | extern rtx canonicalize_condition (rtx, rtx, int, rtx *, rtx, int, int); | |
2118 | ||
2119 | /* Given a JUMP_INSN, return a canonical description of the test | |
2120 | being made. */ | |
2121 | extern rtx get_condition (rtx, rtx *, int, int); | |
2122 | ||
9680c846 | 2123 | /* Information about a subreg of a hard register. */ |
2124 | struct subreg_info | |
2125 | { | |
2126 | /* Offset of first hard register involved in the subreg. */ | |
2127 | int offset; | |
2128 | /* Number of hard registers involved in the subreg. */ | |
2129 | int nregs; | |
2130 | /* Whether this subreg can be represented as a hard reg with the new | |
2131 | mode. */ | |
2132 | bool representable_p; | |
2133 | }; | |
2134 | ||
2135 | extern void subreg_get_info (unsigned int, enum machine_mode, | |
2136 | unsigned int, enum machine_mode, | |
2137 | struct subreg_info *); | |
2138 | ||
1f3233d1 | 2139 | /* lists.c */ |
2140 | ||
effd1640 | 2141 | extern void free_EXPR_LIST_list (rtx *); |
2142 | extern void free_INSN_LIST_list (rtx *); | |
2143 | extern void free_EXPR_LIST_node (rtx); | |
2144 | extern void free_INSN_LIST_node (rtx); | |
2145 | extern rtx alloc_INSN_LIST (rtx, rtx); | |
2146 | extern rtx copy_INSN_LIST (rtx); | |
2147 | extern rtx concat_INSN_LIST (rtx, rtx); | |
2148 | extern rtx alloc_EXPR_LIST (int, rtx, rtx); | |
e1ab7874 | 2149 | extern void remove_free_INSN_LIST_elem (rtx, rtx *); |
2150 | extern rtx remove_list_elem (rtx, rtx *); | |
2151 | extern rtx remove_free_INSN_LIST_node (rtx *); | |
2152 | extern rtx remove_free_EXPR_LIST_node (rtx *); | |
2153 | ||
7cc785dd | 2154 | |
ac502adf | 2155 | /* reginfo.c */ |
7cc785dd | 2156 | |
47dd2e78 | 2157 | /* Resize reg info. */ |
a7dcf969 | 2158 | extern bool resize_reg_info (void); |
b6c8b728 | 2159 | /* Free up register info memory. */ |
3ad4992f | 2160 | extern void free_reg_info (void); |
e8eed2f8 | 2161 | extern void init_subregs_of_mode (void); |
2162 | extern void finish_subregs_of_mode (void); | |
b6c8b728 | 2163 | |
7cc785dd | 2164 | /* recog.c */ |
78f55ca8 | 2165 | extern rtx extract_asm_operands (rtx); |
52d07779 | 2166 | extern int asm_noperands (const_rtx); |
3ad4992f | 2167 | extern const char *decode_asm_operands (rtx, rtx *, rtx **, const char **, |
09fb10e8 | 2168 | enum machine_mode *, location_t *); |
759bebca | 2169 | |
3ad4992f | 2170 | extern enum reg_class reg_preferred_class (int); |
2171 | extern enum reg_class reg_alternate_class (int); | |
66d9a7b9 | 2172 | extern enum reg_class reg_allocno_class (int); |
a7dcf969 | 2173 | extern void setup_reg_classes (int, enum reg_class, enum reg_class, |
2174 | enum reg_class); | |
759bebca | 2175 | |
3072d30e | 2176 | extern void split_all_insns (void); |
2a1990e9 | 2177 | extern unsigned int split_all_insns_noflow (void); |
14d66741 | 2178 | |
1a60f06a | 2179 | #define MAX_SAVED_CONST_INT 64 |
1f3233d1 | 2180 | extern GTY(()) rtx const_int_rtx[MAX_SAVED_CONST_INT * 2 + 1]; |
1a60f06a | 2181 | |
57c097d5 | 2182 | #define const0_rtx (const_int_rtx[MAX_SAVED_CONST_INT]) |
2183 | #define const1_rtx (const_int_rtx[MAX_SAVED_CONST_INT+1]) | |
2184 | #define const2_rtx (const_int_rtx[MAX_SAVED_CONST_INT+2]) | |
2185 | #define constm1_rtx (const_int_rtx[MAX_SAVED_CONST_INT-1]) | |
1f3233d1 | 2186 | extern GTY(()) rtx const_true_rtx; |
ca9902fc | 2187 | |
ba8dfb08 | 2188 | extern GTY(()) rtx const_tiny_rtx[4][(int) MAX_MACHINE_MODE]; |
ca9902fc | 2189 | |
f220c8f0 | 2190 | /* Returns a constant 0 rtx in mode MODE. Integer modes are treated the |
ca9902fc | 2191 | same as VOIDmode. */ |
2192 | ||
2193 | #define CONST0_RTX(MODE) (const_tiny_rtx[0][(int) (MODE)]) | |
2194 | ||
ba8dfb08 | 2195 | /* Likewise, for the constants 1 and 2 and -1. */ |
ca9902fc | 2196 | |
2197 | #define CONST1_RTX(MODE) (const_tiny_rtx[1][(int) (MODE)]) | |
2198 | #define CONST2_RTX(MODE) (const_tiny_rtx[2][(int) (MODE)]) | |
ba8dfb08 | 2199 | #define CONSTM1_RTX(MODE) (const_tiny_rtx[3][(int) (MODE)]) |
759bebca | 2200 | |
9737dd95 | 2201 | extern GTY(()) rtx pc_rtx; |
2202 | extern GTY(()) rtx cc0_rtx; | |
2203 | extern GTY(()) rtx ret_rtx; | |
2204 | extern GTY(()) rtx simple_return_rtx; | |
7d7b0bac | 2205 | |
57c097d5 | 2206 | /* If HARD_FRAME_POINTER_REGNUM is defined, then a special dummy reg |
2207 | is used to represent the frame pointer. This is because the | |
2208 | hard frame pointer and the automatic variables are separated by an amount | |
2209 | that cannot be determined until after register allocation. We can assume | |
2210 | that in this case ELIMINABLE_REGS will be defined, one action of which | |
a7dce381 | 2211 | will be to eliminate FRAME_POINTER_REGNUM into HARD_FRAME_POINTER_REGNUM. */ |
57c097d5 | 2212 | #ifndef HARD_FRAME_POINTER_REGNUM |
2213 | #define HARD_FRAME_POINTER_REGNUM FRAME_POINTER_REGNUM | |
2214 | #endif | |
2215 | ||
5ae82d58 | 2216 | #ifndef HARD_FRAME_POINTER_IS_FRAME_POINTER |
2217 | #define HARD_FRAME_POINTER_IS_FRAME_POINTER \ | |
2218 | (HARD_FRAME_POINTER_REGNUM == FRAME_POINTER_REGNUM) | |
2219 | #endif | |
2220 | ||
2221 | #ifndef HARD_FRAME_POINTER_IS_ARG_POINTER | |
2222 | #define HARD_FRAME_POINTER_IS_ARG_POINTER \ | |
2223 | (HARD_FRAME_POINTER_REGNUM == ARG_POINTER_REGNUM) | |
2224 | #endif | |
2225 | ||
57c097d5 | 2226 | /* Index labels for global_rtl. */ |
2227 | enum global_rtl_index | |
1a60f06a | 2228 | { |
57c097d5 | 2229 | GR_STACK_POINTER, |
2230 | GR_FRAME_POINTER, | |
2231 | /* For register elimination to work properly these hard_frame_pointer_rtx, | |
2232 | frame_pointer_rtx, and arg_pointer_rtx must be the same if they refer to | |
2233 | the same register. */ | |
2234 | #if FRAME_POINTER_REGNUM == ARG_POINTER_REGNUM | |
2235 | GR_ARG_POINTER = GR_FRAME_POINTER, | |
2236 | #endif | |
5ae82d58 | 2237 | #if HARD_FRAME_POINTER_IS_FRAME_POINTER |
57c097d5 | 2238 | GR_HARD_FRAME_POINTER = GR_FRAME_POINTER, |
2239 | #else | |
2240 | GR_HARD_FRAME_POINTER, | |
2241 | #endif | |
2242 | #if FRAME_POINTER_REGNUM != ARG_POINTER_REGNUM | |
5ae82d58 | 2243 | #if HARD_FRAME_POINTER_IS_ARG_POINTER |
57c097d5 | 2244 | GR_ARG_POINTER = GR_HARD_FRAME_POINTER, |
2245 | #else | |
2246 | GR_ARG_POINTER, | |
2247 | #endif | |
2248 | #endif | |
2249 | GR_VIRTUAL_INCOMING_ARGS, | |
2250 | GR_VIRTUAL_STACK_ARGS, | |
2251 | GR_VIRTUAL_STACK_DYNAMIC, | |
2252 | GR_VIRTUAL_OUTGOING_ARGS, | |
2253 | GR_VIRTUAL_CFA, | |
60778e62 | 2254 | GR_VIRTUAL_PREFERRED_STACK_BOUNDARY, |
57c097d5 | 2255 | |
2256 | GR_MAX | |
2257 | }; | |
2258 | ||
679bcc8d | 2259 | /* Target-dependent globals. */ |
2260 | struct GTY(()) target_rtl { | |
2261 | /* All references to the hard registers in global_rtl_index go through | |
2262 | these unique rtl objects. On machines where the frame-pointer and | |
2263 | arg-pointer are the same register, they use the same unique object. | |
2264 | ||
2265 | After register allocation, other rtl objects which used to be pseudo-regs | |
2266 | may be clobbered to refer to the frame-pointer register. | |
2267 | But references that were originally to the frame-pointer can be | |
2268 | distinguished from the others because they contain frame_pointer_rtx. | |
2269 | ||
2270 | When to use frame_pointer_rtx and hard_frame_pointer_rtx is a little | |
2271 | tricky: until register elimination has taken place hard_frame_pointer_rtx | |
2272 | should be used if it is being set, and frame_pointer_rtx otherwise. After | |
2273 | register elimination hard_frame_pointer_rtx should always be used. | |
2274 | On machines where the two registers are same (most) then these are the | |
2275 | same. */ | |
2276 | rtx x_global_rtl[GR_MAX]; | |
2277 | ||
2278 | /* A unique representation of (REG:Pmode PIC_OFFSET_TABLE_REGNUM). */ | |
2279 | rtx x_pic_offset_table_rtx; | |
2280 | ||
2281 | /* A unique representation of (REG:Pmode RETURN_ADDRESS_POINTER_REGNUM). | |
2282 | This is used to implement __builtin_return_address for some machines; | |
2283 | see for instance the MIPS port. */ | |
2284 | rtx x_return_address_pointer_rtx; | |
2285 | ||
2286 | /* Commonly used RTL for hard registers. These objects are not | |
2287 | necessarily unique, so we allocate them separately from global_rtl. | |
2288 | They are initialized once per compilation unit, then copied into | |
2289 | regno_reg_rtx at the beginning of each function. */ | |
2290 | rtx x_initial_regno_reg_rtx[FIRST_PSEUDO_REGISTER]; | |
75f8637a | 2291 | |
2292 | /* A sample (mem:M stack_pointer_rtx) rtx for each mode M. */ | |
2293 | rtx x_top_of_stack[MAX_MACHINE_MODE]; | |
eb2c25b5 | 2294 | |
2295 | /* Static hunks of RTL used by the aliasing code; these are treated | |
2296 | as persistent to avoid unnecessary RTL allocations. */ | |
2297 | rtx x_static_reg_base_value[FIRST_PSEUDO_REGISTER]; | |
d83fcaa1 | 2298 | |
2299 | /* The default memory attributes for each mode. */ | |
2300 | struct mem_attrs *x_mode_mem_attrs[(int) MAX_MACHINE_MODE]; | |
679bcc8d | 2301 | }; |
2302 | ||
2303 | extern GTY(()) struct target_rtl default_target_rtl; | |
2304 | #if SWITCHABLE_TARGET | |
2305 | extern struct target_rtl *this_target_rtl; | |
2306 | #else | |
2307 | #define this_target_rtl (&default_target_rtl) | |
2308 | #endif | |
2309 | ||
2310 | #define global_rtl \ | |
2311 | (this_target_rtl->x_global_rtl) | |
2312 | #define pic_offset_table_rtx \ | |
2313 | (this_target_rtl->x_pic_offset_table_rtx) | |
2314 | #define return_address_pointer_rtx \ | |
2315 | (this_target_rtl->x_return_address_pointer_rtx) | |
75f8637a | 2316 | #define top_of_stack \ |
2317 | (this_target_rtl->x_top_of_stack) | |
d83fcaa1 | 2318 | #define mode_mem_attrs \ |
2319 | (this_target_rtl->x_mode_mem_attrs) | |
57c097d5 | 2320 | |
759bebca | 2321 | /* All references to certain hard regs, except those created |
2322 | by allocating pseudo regs into them (when that's possible), | |
2323 | go through these unique rtx objects. */ | |
57c097d5 | 2324 | #define stack_pointer_rtx (global_rtl[GR_STACK_POINTER]) |
2325 | #define frame_pointer_rtx (global_rtl[GR_FRAME_POINTER]) | |
2326 | #define hard_frame_pointer_rtx (global_rtl[GR_HARD_FRAME_POINTER]) | |
2327 | #define arg_pointer_rtx (global_rtl[GR_ARG_POINTER]) | |
1a60f06a | 2328 | |
d83fcaa1 | 2329 | #ifndef GENERATOR_FILE |
2330 | /* Return the attributes of a MEM rtx. */ | |
2331 | static inline struct mem_attrs * | |
2332 | get_mem_attrs (const_rtx x) | |
2333 | { | |
2334 | struct mem_attrs *attrs; | |
2335 | ||
2336 | attrs = MEM_ATTRS (x); | |
2337 | if (!attrs) | |
2338 | attrs = mode_mem_attrs[(int) GET_MODE (x)]; | |
2339 | return attrs; | |
2340 | } | |
2341 | #endif | |
2342 | ||
3ad7bb1c | 2343 | /* Include the RTL generation functions. */ |
2344 | ||
fdef3332 | 2345 | #ifndef GENERATOR_FILE |
3ad7bb1c | 2346 | #include "genrtl.h" |
09fb10e8 | 2347 | #undef gen_rtx_ASM_INPUT |
09fb10e8 | 2348 | #define gen_rtx_ASM_INPUT(MODE, ARG0) \ |
2349 | gen_rtx_fmt_si (ASM_INPUT, (MODE), (ARG0), 0) | |
2350 | #define gen_rtx_ASM_INPUT_loc(MODE, ARG0, LOC) \ | |
2351 | gen_rtx_fmt_si (ASM_INPUT, (MODE), (ARG0), (LOC)) | |
3ad7bb1c | 2352 | #endif |
2353 | ||
b5ba9f3a | 2354 | /* There are some RTL codes that require special attention; the |
2355 | generation functions included above do the raw handling. If you | |
8fd5918e | 2356 | add to this list, modify special_rtx in gengenrtl.c as well. */ |
3ad7bb1c | 2357 | |
3ad4992f | 2358 | extern rtx gen_rtx_CONST_INT (enum machine_mode, HOST_WIDE_INT); |
2359 | extern rtx gen_rtx_CONST_VECTOR (enum machine_mode, rtvec); | |
2360 | extern rtx gen_raw_REG (enum machine_mode, int); | |
2361 | extern rtx gen_rtx_REG (enum machine_mode, unsigned); | |
2362 | extern rtx gen_rtx_SUBREG (enum machine_mode, rtx, int); | |
2363 | extern rtx gen_rtx_MEM (enum machine_mode, rtx); | |
3ad7bb1c | 2364 | |
1e9d55d7 | 2365 | #define GEN_INT(N) gen_rtx_CONST_INT (VOIDmode, (N)) |
3ad7bb1c | 2366 | |
759bebca | 2367 | /* Virtual registers are used during RTL generation to refer to locations into |
2368 | the stack frame when the actual location isn't known until RTL generation | |
2369 | is complete. The routine instantiate_virtual_regs replaces these with | |
2370 | the proper value, which is normally {frame,arg,stack}_pointer_rtx plus | |
2371 | a constant. */ | |
2372 | ||
2373 | #define FIRST_VIRTUAL_REGISTER (FIRST_PSEUDO_REGISTER) | |
2374 | ||
2375 | /* This points to the first word of the incoming arguments passed on the stack, | |
2376 | either by the caller or by the callee when pretending it was passed by the | |
2377 | caller. */ | |
2378 | ||
57c097d5 | 2379 | #define virtual_incoming_args_rtx (global_rtl[GR_VIRTUAL_INCOMING_ARGS]) |
759bebca | 2380 | |
2381 | #define VIRTUAL_INCOMING_ARGS_REGNUM (FIRST_VIRTUAL_REGISTER) | |
2382 | ||
511d786c | 2383 | /* If FRAME_GROWS_DOWNWARD, this points to immediately above the first |
759bebca | 2384 | variable on the stack. Otherwise, it points to the first variable on |
2385 | the stack. */ | |
2386 | ||
57c097d5 | 2387 | #define virtual_stack_vars_rtx (global_rtl[GR_VIRTUAL_STACK_ARGS]) |
759bebca | 2388 | |
2389 | #define VIRTUAL_STACK_VARS_REGNUM ((FIRST_VIRTUAL_REGISTER) + 1) | |
2390 | ||
2391 | /* This points to the location of dynamically-allocated memory on the stack | |
2392 | immediately after the stack pointer has been adjusted by the amount | |
2393 | desired. */ | |
2394 | ||
57c097d5 | 2395 | #define virtual_stack_dynamic_rtx (global_rtl[GR_VIRTUAL_STACK_DYNAMIC]) |
759bebca | 2396 | |
2397 | #define VIRTUAL_STACK_DYNAMIC_REGNUM ((FIRST_VIRTUAL_REGISTER) + 2) | |
2398 | ||
2399 | /* This points to the location in the stack at which outgoing arguments should | |
2400 | be written when the stack is pre-pushed (arguments pushed using push | |
2401 | insns always use sp). */ | |
2402 | ||
57c097d5 | 2403 | #define virtual_outgoing_args_rtx (global_rtl[GR_VIRTUAL_OUTGOING_ARGS]) |
759bebca | 2404 | |
2405 | #define VIRTUAL_OUTGOING_ARGS_REGNUM ((FIRST_VIRTUAL_REGISTER) + 3) | |
2406 | ||
ec37ccb4 | 2407 | /* This points to the Canonical Frame Address of the function. This |
de132707 | 2408 | should correspond to the CFA produced by INCOMING_FRAME_SP_OFFSET, |
ec37ccb4 | 2409 | but is calculated relative to the arg pointer for simplicity; the |
f220c8f0 | 2410 | frame pointer nor stack pointer are necessarily fixed relative to |
ec37ccb4 | 2411 | the CFA until after reload. */ |
2412 | ||
57c097d5 | 2413 | #define virtual_cfa_rtx (global_rtl[GR_VIRTUAL_CFA]) |
ec37ccb4 | 2414 | |
2415 | #define VIRTUAL_CFA_REGNUM ((FIRST_VIRTUAL_REGISTER) + 4) | |
2416 | ||
60778e62 | 2417 | #define LAST_VIRTUAL_POINTER_REGISTER ((FIRST_VIRTUAL_REGISTER) + 4) |
2418 | ||
2419 | /* This is replaced by crtl->preferred_stack_boundary / BITS_PER_UNIT | |
2420 | when finalized. */ | |
2421 | ||
2422 | #define virtual_preferred_stack_boundary_rtx \ | |
2423 | (global_rtl[GR_VIRTUAL_PREFERRED_STACK_BOUNDARY]) | |
2424 | ||
2425 | #define VIRTUAL_PREFERRED_STACK_BOUNDARY_REGNUM \ | |
2426 | ((FIRST_VIRTUAL_REGISTER) + 5) | |
2427 | ||
2428 | #define LAST_VIRTUAL_REGISTER ((FIRST_VIRTUAL_REGISTER) + 5) | |
759bebca | 2429 | |
2b96c5f6 | 2430 | /* Nonzero if REGNUM is a pointer into the stack frame. */ |
1a97be37 | 2431 | #define REGNO_PTR_FRAME_P(REGNUM) \ |
2b96c5f6 | 2432 | ((REGNUM) == STACK_POINTER_REGNUM \ |
2433 | || (REGNUM) == FRAME_POINTER_REGNUM \ | |
2434 | || (REGNUM) == HARD_FRAME_POINTER_REGNUM \ | |
2435 | || (REGNUM) == ARG_POINTER_REGNUM \ | |
2436 | || ((REGNUM) >= FIRST_VIRTUAL_REGISTER \ | |
60778e62 | 2437 | && (REGNUM) <= LAST_VIRTUAL_POINTER_REGISTER)) |
2b96c5f6 | 2438 | |
14e6e4d4 | 2439 | /* REGNUM never really appearing in the INSN stream. */ |
47c251e5 | 2440 | #define INVALID_REGNUM (~(unsigned int) 0) |
14e6e4d4 | 2441 | |
3ad4992f | 2442 | extern rtx output_constant_def (tree, int); |
6e326506 | 2443 | extern rtx lookup_constant_def (tree); |
759bebca | 2444 | |
759bebca | 2445 | /* Nonzero after end of reload pass. |
b0a37f5c | 2446 | Set to 1 or 0 by reload1.c. */ |
759bebca | 2447 | |
2448 | extern int reload_completed; | |
2449 | ||
8af3db02 | 2450 | /* Nonzero after thread_prologue_and_epilogue_insns has run. */ |
2451 | extern int epilogue_completed; | |
2452 | ||
759bebca | 2453 | /* Set to 1 while reload_as_needed is operating. |
2454 | Required by some machines to handle any generated moves differently. */ | |
2455 | ||
2456 | extern int reload_in_progress; | |
2457 | ||
c6a6cdaa | 2458 | /* Set to 1 while in lra. */ |
2459 | extern int lra_in_progress; | |
2460 | ||
e1ba4a27 | 2461 | /* This macro indicates whether you may create a new |
2462 | pseudo-register. */ | |
2463 | ||
2464 | #define can_create_pseudo_p() (!reload_in_progress && !reload_completed) | |
2465 | ||
3e6933a8 | 2466 | #ifdef STACK_REGS |
2467 | /* Nonzero after end of regstack pass. | |
2468 | Set to 1 or 0 by reg-stack.c. */ | |
2469 | extern int regstack_completed; | |
2470 | #endif | |
2471 | ||
759bebca | 2472 | /* If this is nonzero, we do not bother generating VOLATILE |
2473 | around volatile memory references, and we are willing to | |
2474 | output indirect addresses. If cse is to follow, we reject | |
2475 | indirect addresses so a useful potential cse is generated; | |
2476 | if it is used only once, instruction combination will produce | |
2477 | the same indirect address eventually. */ | |
2478 | extern int cse_not_expected; | |
2479 | ||
dd901a13 | 2480 | /* Translates rtx code to tree code, for those codes needed by |
283f631a | 2481 | REAL_ARITHMETIC. The function returns an int because the caller may not |
2482 | know what `enum tree_code' means. */ | |
2483 | ||
3ad4992f | 2484 | extern int rtx_to_tree_code (enum rtx_code); |
ea0cb7ae | 2485 | |
bc33205e | 2486 | /* In cse.c */ |
3ad4992f | 2487 | extern int delete_trivially_dead_insns (rtx, int); |
52d07779 | 2488 | extern int exp_equiv_p (const_rtx, const_rtx, int, bool); |
2489 | extern unsigned hash_rtx (const_rtx x, enum machine_mode, int *, int *, bool); | |
bc33205e | 2490 | |
017b7047 | 2491 | /* In dse.c */ |
5a9ecd4a | 2492 | extern bool check_for_inc_dec (rtx insn); |
017b7047 | 2493 | |
bc33205e | 2494 | /* In jump.c */ |
3ad4992f | 2495 | extern int comparison_dominates_p (enum rtx_code, enum rtx_code); |
4115ac36 | 2496 | extern bool jump_to_label_p (rtx); |
52d07779 | 2497 | extern int condjump_p (const_rtx); |
2498 | extern int any_condjump_p (const_rtx); | |
2499 | extern int any_uncondjump_p (const_rtx); | |
2500 | extern rtx pc_set (const_rtx); | |
5493cb9a | 2501 | extern rtx condjump_label (const_rtx); |
52d07779 | 2502 | extern int simplejump_p (const_rtx); |
3ad4992f | 2503 | extern int returnjump_p (rtx); |
25e880b1 | 2504 | extern int eh_returnjump_p (rtx); |
52d07779 | 2505 | extern int onlyjump_p (const_rtx); |
2506 | extern int only_sets_cc0_p (const_rtx); | |
2507 | extern int sets_cc0_p (const_rtx); | |
3ad4992f | 2508 | extern int invert_jump_1 (rtx, rtx); |
2509 | extern int invert_jump (rtx, rtx, int); | |
a9f1838b | 2510 | extern int rtx_renumbered_equal_p (const_rtx, const_rtx); |
52d07779 | 2511 | extern int true_regnum (const_rtx); |
2512 | extern unsigned int reg_or_subregno (const_rtx); | |
3ad4992f | 2513 | extern int redirect_jump_1 (rtx, rtx); |
82880dfd | 2514 | extern void redirect_jump_2 (rtx, rtx, rtx, int, int); |
3ad4992f | 2515 | extern int redirect_jump (rtx, rtx, int); |
2516 | extern void rebuild_jump_labels (rtx); | |
409e049a | 2517 | extern void rebuild_jump_labels_chain (rtx); |
5493cb9a | 2518 | extern rtx reversed_comparison (const_rtx, enum machine_mode); |
2519 | extern enum rtx_code reversed_comparison_code (const_rtx, const_rtx); | |
2520 | extern enum rtx_code reversed_comparison_code_parts (enum rtx_code, const_rtx, | |
2521 | const_rtx, const_rtx); | |
3ad4992f | 2522 | extern void delete_for_peephole (rtx, rtx); |
52d07779 | 2523 | extern int condjump_in_parallel_p (const_rtx); |
f5e86f05 | 2524 | |
a7dce381 | 2525 | /* In emit-rtl.c. */ |
3ad4992f | 2526 | extern int max_reg_num (void); |
2527 | extern int max_label_num (void); | |
2528 | extern int get_first_label_num (void); | |
4ee9c684 | 2529 | extern void maybe_set_first_label_num (rtx); |
3ad4992f | 2530 | extern void delete_insns_since (rtx); |
2531 | extern void mark_reg_pointer (rtx, int); | |
2532 | extern void mark_user_reg (rtx); | |
2533 | extern void reset_used_flags (rtx); | |
1cd4cfea | 2534 | extern void set_used_flags (rtx); |
3ad4992f | 2535 | extern void reorder_insns (rtx, rtx, rtx); |
2536 | extern void reorder_insns_nobb (rtx, rtx, rtx); | |
9845d120 | 2537 | extern int get_max_insn_count (void); |
3ad4992f | 2538 | extern int in_sequence_p (void); |
3ad4992f | 2539 | extern void init_emit (void); |
6d8b68a3 | 2540 | extern void init_emit_regs (void); |
01703575 | 2541 | extern void init_emit_once (void); |
3ad4992f | 2542 | extern void push_topmost_sequence (void); |
2543 | extern void pop_topmost_sequence (void); | |
3ad4992f | 2544 | extern void set_new_first_and_last_insn (rtx, rtx); |
2a1990e9 | 2545 | extern unsigned int unshare_all_rtl (void); |
3ad4992f | 2546 | extern void unshare_all_rtl_again (rtx); |
1cd4cfea | 2547 | extern void unshare_all_rtl_in_chain (rtx); |
2548 | extern void verify_rtl_sharing (void); | |
3ad4992f | 2549 | extern void link_cc0_insns (rtx); |
2550 | extern void add_insn (rtx); | |
161dfa6e | 2551 | extern void add_insn_before (rtx, rtx, basic_block); |
2552 | extern void add_insn_after (rtx, rtx, basic_block); | |
3ad4992f | 2553 | extern void remove_insn (rtx); |
3ad4992f | 2554 | extern rtx emit (rtx); |
a2b85e40 | 2555 | extern void delete_insn (rtx); |
a0fee14a | 2556 | extern rtx entry_of_function (void); |
aa02fa19 | 2557 | extern void emit_insn_at_entry (rtx); |
39257eb5 | 2558 | extern void delete_insn_chain (rtx, rtx, bool); |
3ad4992f | 2559 | extern rtx unlink_insn_chain (rtx, rtx); |
a2b85e40 | 2560 | extern void delete_insn_and_edges (rtx); |
fd00232c | 2561 | extern rtx gen_lowpart_SUBREG (enum machine_mode, rtx); |
e265a6da | 2562 | extern rtx gen_const_mem (enum machine_mode, rtx); |
00060fc2 | 2563 | extern rtx gen_frame_mem (enum machine_mode, rtx); |
2564 | extern rtx gen_tmp_stack_mem (enum machine_mode, rtx); | |
2166bbaa | 2565 | extern bool validate_subreg (enum machine_mode, enum machine_mode, |
7ecb5bb2 | 2566 | const_rtx, unsigned int); |
bc33205e | 2567 | |
3072d30e | 2568 | /* In combine.c */ |
8bbbe2b5 | 2569 | extern unsigned int extended_count (const_rtx, enum machine_mode, int); |
d598ad0d | 2570 | extern rtx remove_death (unsigned int, rtx); |
d598ad0d | 2571 | extern void dump_combine_stats (FILE *); |
2572 | extern void dump_combine_total_stats (FILE *); | |
e6637753 | 2573 | extern rtx make_compound_operation (rtx, enum rtx_code); |
bc33205e | 2574 | |
3072d30e | 2575 | /* In cfgcleanup.c */ |
2576 | extern void delete_dead_jumptables (void); | |
2577 | ||
fd00232c | 2578 | /* In sched-rgn.c. */ |
3f5be5f4 | 2579 | extern void schedule_insns (void); |
fd00232c | 2580 | |
2581 | /* In sched-ebb.c. */ | |
3f5be5f4 | 2582 | extern void schedule_ebbs (void); |
fd00232c | 2583 | |
e1ab7874 | 2584 | /* In sel-sched-dump.c. */ |
2585 | extern void sel_sched_fix_param (const char *param, const char *val); | |
2586 | ||
bc33205e | 2587 | /* In print-rtl.c */ |
52fd6db3 | 2588 | extern const char *print_rtx_head; |
dd9b9fc5 | 2589 | extern void debug_rtx (const_rtx); |
2590 | extern void debug_rtx_list (const_rtx, int); | |
2591 | extern void debug_rtx_range (const_rtx, const_rtx); | |
2592 | extern const_rtx debug_rtx_find (const_rtx, int); | |
2593 | extern void print_mem_expr (FILE *, const_tree); | |
2594 | extern void print_rtl (FILE *, const_rtx); | |
2595 | extern void print_simple_rtl (FILE *, const_rtx); | |
2596 | extern int print_rtl_single (FILE *, const_rtx); | |
9631926a | 2597 | extern int print_rtl_single_with_indent (FILE *, const_rtx, int); |
dd9b9fc5 | 2598 | extern void print_inline_rtx (FILE *, const_rtx, int); |
bc33205e | 2599 | |
3d9a4504 | 2600 | /* Functions in sched-vis.c. FIXME: Ideally these functions would |
f4b3647a | 2601 | not be in sched-vis.c but in rtl.c, because they are not only used |
2602 | by the scheduler anymore but for all "slim" RTL dumping. */ | |
6dde9719 | 2603 | extern void dump_value_slim (FILE *, const_rtx, int); |
2604 | extern void dump_insn_slim (FILE *, const_rtx); | |
2605 | extern void dump_rtl_slim (FILE *, const_rtx, const_rtx, int, int); | |
3d9a4504 | 2606 | extern void print_value (pretty_printer *, const_rtx, int); |
2607 | extern void print_pattern (pretty_printer *, const_rtx, int); | |
2608 | extern void print_insn (pretty_printer *, const_rtx, int); | |
e079344a | 2609 | extern void rtl_dump_bb_for_graph (pretty_printer *, basic_block); |
3d9a4504 | 2610 | extern const char *str_pattern_slim (const_rtx); |
f4b3647a | 2611 | |
bc33205e | 2612 | /* In function.c */ |
3072d30e | 2613 | extern void reposition_prologue_and_epilogue_notes (void); |
52d07779 | 2614 | extern int prologue_epilogue_contains (const_rtx); |
2615 | extern int sibcall_epilogue_contains (const_rtx); | |
3ad4992f | 2616 | extern void update_temp_slot_address (rtx, rtx); |
1eefcaee | 2617 | extern void maybe_copy_prologue_epilogue_insn (rtx, rtx); |
31a53363 | 2618 | extern void set_return_jump_label (rtx); |
bc33205e | 2619 | |
bc33205e | 2620 | /* In stmt.c */ |
3ad4992f | 2621 | extern void expand_null_return (void); |
62380d2d | 2622 | extern void expand_naked_return (void); |
3ad4992f | 2623 | extern void emit_jump (rtx); |
bc33205e | 2624 | |
2625 | /* In expr.c */ | |
3ad4992f | 2626 | extern rtx move_by_pieces (rtx, rtx, unsigned HOST_WIDE_INT, |
2627 | unsigned int, int); | |
40125f1c | 2628 | extern HOST_WIDE_INT find_args_size_adjust (rtx); |
dfe00a8f | 2629 | extern int fixup_args_size_notes (rtx, rtx, int); |
9d7facc8 | 2630 | |
3072d30e | 2631 | /* In cfgrtl.c */ |
5147ec07 | 2632 | extern void print_rtl_with_bb (FILE *, const_rtx, int); |
23a070f3 | 2633 | extern rtx duplicate_insn_chain (rtx, rtx); |
3072d30e | 2634 | |
bc33205e | 2635 | /* In expmed.c */ |
3ad4992f | 2636 | extern void init_expmed (void); |
2637 | extern void expand_inc (rtx, rtx); | |
2638 | extern void expand_dec (rtx, rtx); | |
bc33205e | 2639 | |
c7944dce | 2640 | /* In lower-subreg.c */ |
2641 | extern void init_lower_subreg (void); | |
2642 | ||
ebd9163c | 2643 | /* In gcse.c */ |
3ad4992f | 2644 | extern bool can_copy_p (enum machine_mode); |
4b673aa1 | 2645 | extern bool can_assign_to_reg_without_clobbers_p (rtx); |
3ad4992f | 2646 | extern rtx fis_get_condition (rtx); |
78d140c9 | 2647 | |
cf709bf6 | 2648 | /* In ira.c */ |
47dd2e78 | 2649 | #ifdef HARD_CONST |
2650 | extern HARD_REG_SET eliminable_regset; | |
2651 | #endif | |
3ad4992f | 2652 | extern void mark_elimination (int, int); |
bc33205e | 2653 | |
ac502adf | 2654 | /* In reginfo.c */ |
fbd79b7a | 2655 | extern int reg_classes_intersect_p (reg_class_t, reg_class_t); |
2dfa2c74 | 2656 | extern int reg_class_subset_p (reg_class_t, reg_class_t); |
ca2d5ca1 | 2657 | extern void globalize_reg (tree, int); |
6d8b68a3 | 2658 | extern void init_reg_modes_target (void); |
3ad4992f | 2659 | extern void init_regs (void); |
c950adc6 | 2660 | extern void reinit_regs (void); |
3ad4992f | 2661 | extern void init_fake_stack_mems (void); |
7fecc8b3 | 2662 | extern void save_register_info (void); |
3ad4992f | 2663 | extern void init_reg_sets (void); |
3f5be5f4 | 2664 | extern void regclass (rtx, int); |
283a0d5c | 2665 | extern void reg_scan (rtx, unsigned int); |
3ad4992f | 2666 | extern void fix_register (const char *, int, int); |
63dae96b | 2667 | extern bool invalid_mode_change_p (unsigned int, enum reg_class); |
0019492d | 2668 | |
ebd9163c | 2669 | /* In reorg.c */ |
3f5be5f4 | 2670 | extern void dbr_schedule (rtx); |
ebd9163c | 2671 | |
dfc4de0a | 2672 | /* In reload1.c */ |
52d07779 | 2673 | extern int function_invariant_p (const_rtx); |
dfc4de0a | 2674 | |
bc33205e | 2675 | /* In calls.c */ |
2c5d421b | 2676 | enum libcall_type |
2677 | { | |
2678 | LCT_NORMAL = 0, | |
2679 | LCT_CONST = 1, | |
2680 | LCT_PURE = 2, | |
2dd6f9ed | 2681 | LCT_NORETURN = 3, |
2682 | LCT_THROW = 4, | |
2683 | LCT_RETURNS_TWICE = 5 | |
2c5d421b | 2684 | }; |
2685 | ||
3ad4992f | 2686 | extern void emit_library_call (rtx, enum libcall_type, enum machine_mode, int, |
2687 | ...); | |
2688 | extern rtx emit_library_call_value (rtx, rtx, enum libcall_type, | |
2689 | enum machine_mode, int, ...); | |
bc33205e | 2690 | |
bc33205e | 2691 | /* In varasm.c */ |
3ad4992f | 2692 | extern void init_varasm_once (void); |
48e1416a | 2693 | |
a2f58a79 | 2694 | extern rtx make_debug_expr_from_rtl (const_rtx); |
2695 | ||
fdef3332 | 2696 | /* In read-rtl.c */ |
77ba95d0 | 2697 | extern bool read_rtx (const char *, rtx *); |
0922b1b8 | 2698 | |
bc33205e | 2699 | /* In alias.c */ |
aecda0d6 | 2700 | extern rtx canon_rtx (rtx); |
376a287d | 2701 | extern int true_dependence (const_rtx, enum machine_mode, const_rtx); |
aecda0d6 | 2702 | extern rtx get_addr (rtx); |
376a287d | 2703 | extern int canon_true_dependence (const_rtx, enum machine_mode, rtx, |
2704 | const_rtx, rtx); | |
52d07779 | 2705 | extern int read_dependence (const_rtx, const_rtx); |
2706 | extern int anti_dependence (const_rtx, const_rtx); | |
2707 | extern int output_dependence (const_rtx, const_rtx); | |
a84256aa | 2708 | extern int may_alias_p (const_rtx, const_rtx); |
6d8b68a3 | 2709 | extern void init_alias_target (void); |
aecda0d6 | 2710 | extern void init_alias_analysis (void); |
2711 | extern void end_alias_analysis (void); | |
1837e966 | 2712 | extern void vt_equate_reg_base_value (const_rtx, const_rtx); |
5493cb9a | 2713 | extern bool memory_modified_in_insn_p (const_rtx, const_rtx); |
43b6ba45 | 2714 | extern bool memory_must_be_modified_in_insn_p (const_rtx, const_rtx); |
86e87ef6 | 2715 | extern bool may_be_sp_based_p (rtx); |
c09425a0 | 2716 | extern rtx gen_hard_reg_clobber (enum machine_mode, unsigned int); |
12cb06ad | 2717 | extern rtx get_reg_known_value (unsigned int); |
2718 | extern bool get_reg_known_equiv_p (unsigned int); | |
0cfef6c5 | 2719 | extern rtx get_reg_base_value (unsigned int); |
23f5e759 | 2720 | |
b67ec609 | 2721 | #ifdef STACK_REGS |
5493cb9a | 2722 | extern int stack_regs_mentioned (const_rtx insn); |
b67ec609 | 2723 | #endif |
2724 | ||
8f8ac140 | 2725 | /* In toplev.c */ |
1f3233d1 | 2726 | extern GTY(()) rtx stack_limit_rtx; |
120911d5 | 2727 | |
13488c51 | 2728 | /* In predict.c */ |
3ad4992f | 2729 | extern void invert_br_probabilities (rtx); |
2730 | extern bool expensive_function_p (int); | |
897118e8 | 2731 | |
5923a5e7 | 2732 | /* In var-tracking.c */ |
2a1990e9 | 2733 | extern unsigned int variable_tracking_main (void); |
5923a5e7 | 2734 | |
f9cce2dc | 2735 | /* In stor-layout.c. */ |
a6629703 | 2736 | extern void get_mode_bounds (enum machine_mode, int, enum machine_mode, |
2737 | rtx *, rtx *); | |
f9cce2dc | 2738 | |
2739 | /* In loop-unswitch.c */ | |
2740 | extern rtx reversed_condition (rtx); | |
2741 | extern rtx compare_and_jump_seq (rtx, rtx, enum rtx_code, rtx, int, rtx); | |
2742 | ||
2743 | /* In loop-iv.c */ | |
2744 | extern rtx canon_condition (rtx); | |
2391ba8e | 2745 | extern void simplify_using_condition (rtx, rtx *, bitmap); |
e1ab7874 | 2746 | |
2747 | /* In final.c */ | |
2748 | extern unsigned int compute_alignments (void); | |
1ca8efe4 | 2749 | extern int asm_str_count (const char *templ); |
d263732c | 2750 | \f |
2751 | struct rtl_hooks | |
2752 | { | |
2753 | rtx (*gen_lowpart) (enum machine_mode, rtx); | |
8666c391 | 2754 | rtx (*gen_lowpart_no_emit) (enum machine_mode, rtx); |
b7bf20db | 2755 | rtx (*reg_nonzero_bits) (const_rtx, enum machine_mode, const_rtx, enum machine_mode, |
d263732c | 2756 | unsigned HOST_WIDE_INT, unsigned HOST_WIDE_INT *); |
b7bf20db | 2757 | rtx (*reg_num_sign_bit_copies) (const_rtx, enum machine_mode, const_rtx, enum machine_mode, |
d263732c | 2758 | unsigned int, unsigned int *); |
b7bf20db | 2759 | bool (*reg_truncated_to_mode) (enum machine_mode, const_rtx); |
d263732c | 2760 | |
fd95fba4 | 2761 | /* Whenever you add entries here, make sure you adjust rtlhooks-def.h. */ |
d263732c | 2762 | }; |
2763 | ||
2764 | /* Each pass can provide its own. */ | |
2765 | extern struct rtl_hooks rtl_hooks; | |
2766 | ||
2767 | /* ... but then it has to restore these. */ | |
2768 | extern const struct rtl_hooks general_rtl_hooks; | |
2769 | ||
2770 | /* Keep this for the nonce. */ | |
2771 | #define gen_lowpart rtl_hooks.gen_lowpart | |
2772 | ||
5169661d | 2773 | extern void insn_locations_init (void); |
2774 | extern void insn_locations_finalize (void); | |
2775 | extern void set_curr_insn_location (location_t); | |
2776 | extern location_t curr_insn_location (void); | |
f529eb25 | 2777 | extern bool optimize_insn_for_size_p (void); |
2778 | extern bool optimize_insn_for_speed_p (void); | |
375c1c8a | 2779 | |
d7091a76 | 2780 | /* rtl-error.c */ |
2781 | extern void _fatal_insn_not_found (const_rtx, const char *, int, const char *) | |
2782 | ATTRIBUTE_NORETURN; | |
2783 | extern void _fatal_insn (const char *, const_rtx, const char *, int, const char *) | |
2784 | ATTRIBUTE_NORETURN; | |
2785 | ||
2786 | #define fatal_insn(msgid, insn) \ | |
2787 | _fatal_insn (msgid, insn, __FILE__, __LINE__, __FUNCTION__) | |
2788 | #define fatal_insn_not_found(insn) \ | |
2789 | _fatal_insn_not_found (insn, __FILE__, __LINE__, __FUNCTION__) | |
2790 | ||
2791 | ||
2792 | ||
2a281353 | 2793 | #endif /* ! GCC_RTL_H */ |