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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, |
943d8723 | 3 | 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 |
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" |
115133dd | 30 | #include "vecir.h" |
e397ad8e | 31 | #include "fixed-value.h" |
32c2fdea | 32 | #include "alias.h" |
09279218 | 33 | #include "hashtab.h" |
759bebca | 34 | |
35 | #undef FFS /* Some systems predefine this symbol; don't let it interfere. */ | |
c32e1850 | 36 | #undef FLOAT /* Likewise. */ |
2cb13480 | 37 | #undef ABS /* Likewise. */ |
2ebe8a66 | 38 | #undef PC /* Likewise. */ |
759bebca | 39 | |
c6259b83 | 40 | /* Value used by some passes to "recognize" noop moves as valid |
a7dce381 | 41 | instructions. */ |
1805c35c | 42 | #define NOOP_MOVE_INSN_CODE INT_MAX |
43 | ||
759bebca | 44 | /* Register Transfer Language EXPRESSIONS CODES */ |
45 | ||
46 | #define RTX_CODE enum rtx_code | |
47 | enum rtx_code { | |
48 | ||
49 | #define DEF_RTL_EXPR(ENUM, NAME, FORMAT, CLASS) ENUM , | |
50 | #include "rtl.def" /* rtl expressions are documented here */ | |
51 | #undef DEF_RTL_EXPR | |
52 | ||
4bbea254 | 53 | LAST_AND_UNUSED_RTX_CODE}; /* A convenient way to get a value for |
759bebca | 54 | NUM_RTX_CODE. |
4bbea254 | 55 | Assumes default enum value assignment. */ |
759bebca | 56 | |
47c251e5 | 57 | #define NUM_RTX_CODE ((int) LAST_AND_UNUSED_RTX_CODE) |
759bebca | 58 | /* The cast here, saves many elsewhere. */ |
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 | |
139 | they cannot be modified in place. If any element is nonzero, it means | |
140 | the value of the corresponding attribute is unknown. */ | |
07ebef41 | 141 | /* ALIGN and SIZE are the alignment and size of the MEM itself, |
142 | while EXPR can describe a larger underlying object, which might have a | |
143 | stricter alignment; OFFSET is the offset of the MEM within that object. */ | |
fb1e4f4a | 144 | typedef struct GTY(()) mem_attrs |
c6259b83 | 145 | { |
b10dbbca | 146 | tree expr; /* expr corresponding to MEM. */ |
a7dce381 | 147 | rtx offset; /* Offset from start of DECL, as CONST_INT. */ |
c6259b83 | 148 | rtx size; /* Size in bytes, as a CONST_INT. */ |
0ac758f7 | 149 | alias_set_type alias; /* Memory alias set. */ |
1c4512da | 150 | unsigned int align; /* Alignment of MEM in bits. */ |
bd1a81f7 | 151 | unsigned char addrspace; /* Address space (0 for generic). */ |
c6259b83 | 152 | } mem_attrs; |
153 | ||
ca74b940 | 154 | /* Structure used to describe the attributes of a REG in similar way as |
80c70e76 | 155 | mem_attrs does for MEM above. Note that the OFFSET field is calculated |
156 | in the same way as for mem_attrs, rather than in the same way as a | |
157 | SUBREG_BYTE. For example, if a big-endian target stores a byte | |
158 | object in the low part of a 4-byte register, the OFFSET field | |
159 | will be -3 rather than 0. */ | |
ca74b940 | 160 | |
fb1e4f4a | 161 | typedef struct GTY(()) reg_attrs { |
ca74b940 | 162 | tree decl; /* decl corresponding to REG. */ |
163 | HOST_WIDE_INT offset; /* Offset from start of DECL. */ | |
164 | } reg_attrs; | |
165 | ||
759bebca | 166 | /* Common union for an element of an rtx. */ |
167 | ||
c849df63 | 168 | union rtunion_def |
759bebca | 169 | { |
993d9e55 | 170 | int rt_int; |
171 | unsigned int rt_uint; | |
172 | const char *rt_str; | |
173 | rtx rt_rtx; | |
174 | rtvec rt_rtvec; | |
175 | enum machine_mode rt_type; | |
9eaab178 | 176 | addr_diff_vec_flags rt_addr_diff_vec_flags; |
1617c276 | 177 | struct cselib_val_struct *rt_cselib; |
993d9e55 | 178 | tree rt_tree; |
179 | struct basic_block_def *rt_bb; | |
180 | mem_attrs *rt_mem; | |
181 | reg_attrs *rt_reg; | |
7c266bb1 | 182 | struct constant_descriptor_rtx *rt_constant; |
c849df63 | 183 | }; |
184 | typedef union rtunion_def rtunion; | |
759bebca | 185 | |
f2d0e9f1 | 186 | /* This structure remembers the position of a SYMBOL_REF within an |
187 | object_block structure. A SYMBOL_REF only provides this information | |
6617cbc1 | 188 | if SYMBOL_REF_HAS_BLOCK_INFO_P is true. */ |
fb1e4f4a | 189 | struct GTY(()) block_symbol { |
f2d0e9f1 | 190 | /* The usual SYMBOL_REF fields. */ |
191 | rtunion GTY ((skip)) fld[3]; | |
192 | ||
193 | /* The block that contains this object. */ | |
194 | struct object_block *block; | |
195 | ||
196 | /* The offset of this object from the start of its block. It is negative | |
197 | if the symbol has not yet been assigned an offset. */ | |
198 | HOST_WIDE_INT offset; | |
199 | }; | |
200 | ||
f2d0e9f1 | 201 | /* Describes a group of objects that are to be placed together in such |
202 | a way that their relative positions are known. */ | |
fb1e4f4a | 203 | struct GTY(()) object_block { |
f2d0e9f1 | 204 | /* The section in which these objects should be placed. */ |
205 | section *sect; | |
206 | ||
207 | /* The alignment of the first object, measured in bits. */ | |
208 | unsigned int alignment; | |
209 | ||
210 | /* The total size of the objects, measured in bytes. */ | |
211 | HOST_WIDE_INT size; | |
212 | ||
213 | /* The SYMBOL_REFs for each object. The vector is sorted in | |
214 | order of increasing offset and the following conditions will | |
215 | hold for each element X: | |
216 | ||
6617cbc1 | 217 | SYMBOL_REF_HAS_BLOCK_INFO_P (X) |
f2d0e9f1 | 218 | !SYMBOL_REF_ANCHOR_P (X) |
219 | SYMBOL_REF_BLOCK (X) == [address of this structure] | |
220 | SYMBOL_REF_BLOCK_OFFSET (X) >= 0. */ | |
221 | VEC(rtx,gc) *objects; | |
222 | ||
223 | /* All the anchor SYMBOL_REFs used to address these objects, sorted | |
224 | in order of increasing offset, and then increasing TLS model. | |
225 | The following conditions will hold for each element X in this vector: | |
226 | ||
6617cbc1 | 227 | SYMBOL_REF_HAS_BLOCK_INFO_P (X) |
f2d0e9f1 | 228 | SYMBOL_REF_ANCHOR_P (X) |
229 | SYMBOL_REF_BLOCK (X) == [address of this structure] | |
230 | SYMBOL_REF_BLOCK_OFFSET (X) >= 0. */ | |
231 | VEC(rtx,gc) *anchors; | |
232 | }; | |
233 | ||
759bebca | 234 | /* RTL expression ("rtx"). */ |
235 | ||
fb1e4f4a | 236 | struct GTY((chain_next ("RTX_NEXT (&%h)"), |
ba72912a | 237 | chain_prev ("RTX_PREV (&%h)"), variable_size)) rtx_def { |
759bebca | 238 | /* The kind of expression this is. */ |
488c4206 | 239 | ENUM_BITFIELD(rtx_code) code: 16; |
bfec6070 | 240 | |
759bebca | 241 | /* The kind of value the expression has. */ |
488c4206 | 242 | ENUM_BITFIELD(machine_mode) mode : 8; |
243 | ||
e7f75e15 | 244 | /* 1 in a MEM if we should keep the alias set for this mem unchanged |
245 | when we access a component. | |
246 | 1 in a CALL_INSN if it is a sibling call. | |
a7ae1e59 | 247 | 1 in a SET that is for a return. |
248 | In a CODE_LABEL, part of the two-bit alternate entry field. */ | |
759bebca | 249 | unsigned int jump : 1; |
1ed8ccdb | 250 | /* In a CODE_LABEL, part of the two-bit alternate entry field. |
48e1416a | 251 | 1 in a MEM if it cannot trap. |
9c2a0c05 | 252 | 1 in a CALL_INSN logically equivalent to |
253 | ECF_LOOPING_CONST_OR_PURE and DECL_LOOPING_CONST_OR_PURE_P. */ | |
759bebca | 254 | unsigned int call : 1; |
e7f75e15 | 255 | /* 1 in a REG, MEM, or CONCAT if the value is set at most once, anywhere. |
088c4b7b | 256 | 1 in a SUBREG used for SUBREG_PROMOTED_UNSIGNED_P. |
759bebca | 257 | 1 in a SYMBOL_REF if it addresses something in the per-function |
258 | constants pool. | |
48e1416a | 259 | 1 in a CALL_INSN logically equivalent to ECF_CONST and TREE_READONLY. |
9c2a0c05 | 260 | 1 in a NOTE, or EXPR_LIST for a const call. |
5fdf542c | 261 | 1 in a JUMP_INSN, CALL_INSN, or INSN of an annulling branch. */ |
759bebca | 262 | unsigned int unchanging : 1; |
e7f75e15 | 263 | /* 1 in a MEM or ASM_OPERANDS expression if the memory reference is volatile. |
264 | 1 in an INSN, CALL_INSN, JUMP_INSN, CODE_LABEL, BARRIER, or NOTE | |
265 | if it has been deleted. | |
266 | 1 in a REG expression if corresponds to a variable declared by the user, | |
759bebca | 267 | 0 for an internally generated temporary. |
088c4b7b | 268 | 1 in a SUBREG used for SUBREG_PROMOTED_UNSIGNED_P. |
19d2fe05 | 269 | 1 in a LABEL_REF, REG_LABEL_TARGET or REG_LABEL_OPERAND note for a |
270 | non-local label. | |
6540132c | 271 | In a SYMBOL_REF, this flag is used for machine-specific purposes. |
272 | In a PREFETCH, this flag indicates that it should be considered a scheduling | |
273 | barrier. */ | |
759bebca | 274 | unsigned int volatil : 1; |
cdd56452 | 275 | /* 1 in a MEM referring to a field of an aggregate. |
759bebca | 276 | 0 if the MEM was a variable or the result of a * operator in C; |
277 | 1 if it was the result of a . or -> operator (on a struct) in C. | |
278 | 1 in a REG if the register is used only in exit code a loop. | |
f220c8f0 | 279 | 1 in a SUBREG expression if was generated from a variable with a |
3e8eba79 | 280 | promoted mode. |
759bebca | 281 | 1 in a CODE_LABEL if the label is used for nonlocal gotos |
282 | and must not be deleted even if its count is zero. | |
f372955c | 283 | 1 in an INSN, JUMP_INSN or CALL_INSN if this insn must be scheduled |
284 | together with the preceding insn. Valid only within sched. | |
759bebca | 285 | 1 in an INSN, JUMP_INSN, or CALL_INSN if insn is in a delay slot and |
286 | from the target of a branch. Valid from reorg until end of compilation; | |
5bbaf5ca | 287 | cleared before used. */ |
759bebca | 288 | unsigned int in_struct : 1; |
e7f75e15 | 289 | /* At the end of RTL generation, 1 if this rtx is used. This is used for |
290 | copying shared structure. See `unshare_all_rtl'. | |
f220c8f0 | 291 | In a REG, this is not needed for that purpose, and used instead |
759bebca | 292 | in `leaf_renumber_regs_insn'. |
e7f75e15 | 293 | 1 in a SYMBOL_REF, means that emit_library_call |
759bebca | 294 | has used it as the function. */ |
295 | unsigned int used : 1; | |
fa19b467 | 296 | /* 1 in an INSN or a SET if this rtx is related to the call frame, |
6a0934dd | 297 | either changing how we compute the frame address or saving and |
f220c8f0 | 298 | restoring registers in the prologue and epilogue. |
8d350e69 | 299 | 1 in a REG or MEM if it is a pointer. |
abf74c5b | 300 | 1 in a SYMBOL_REF if it addresses something in the per-function |
301 | constant string pool. */ | |
df78b73b | 302 | unsigned frame_related : 1; |
4ee9c684 | 303 | /* 1 in a REG or PARALLEL that is the current function's return value. |
c55c3439 | 304 | 1 in a MEM if it refers to a scalar. |
48e1416a | 305 | 1 in a SYMBOL_REF for a weak symbol. |
306 | 1 in a CALL_INSN logically equivalent to ECF_PURE and DECL_PURE_P. */ | |
4ee9c684 | 307 | unsigned return_val : 1; |
05513b45 | 308 | |
759bebca | 309 | /* The first element of the operands of this rtx. |
310 | The number of operands and their types are controlled | |
311 | by the `code' field, according to rtl.def. */ | |
bf6b5685 | 312 | union u { |
313 | rtunion fld[1]; | |
314 | HOST_WIDE_INT hwint[1]; | |
f2d0e9f1 | 315 | struct block_symbol block_sym; |
e8aaae4e | 316 | struct real_value rv; |
e397ad8e | 317 | struct fixed_value fv; |
bf6b5685 | 318 | } GTY ((special ("rtx_def"), desc ("GET_CODE (&%0)"))) u; |
6a3e3d6d | 319 | }; |
759bebca | 320 | |
bf6b5685 | 321 | /* The size in bytes of an rtx header (code, mode and flags). */ |
322 | #define RTX_HDR_SIZE offsetof (struct rtx_def, u) | |
323 | ||
324 | /* The size in bytes of an rtx with code CODE. */ | |
f2d0e9f1 | 325 | #define RTX_CODE_SIZE(CODE) rtx_code_size[CODE] |
bf6b5685 | 326 | |
759bebca | 327 | #define NULL_RTX (rtx) 0 |
328 | ||
c849df63 | 329 | /* The "next" and "previous" RTX, relative to this one. */ |
330 | ||
331 | #define RTX_NEXT(X) (rtx_next[GET_CODE (X)] == 0 ? NULL \ | |
332 | : *(rtx *)(((char *)X) + rtx_next[GET_CODE (X)])) | |
333 | ||
334 | /* FIXME: the "NEXT_INSN (PREV_INSN (X)) == X" condition shouldn't be needed. | |
335 | */ | |
6d7dc5b9 | 336 | #define RTX_PREV(X) ((INSN_P (X) \ |
337 | || NOTE_P (X) \ | |
338 | || BARRIER_P (X) \ | |
339 | || LABEL_P (X)) \ | |
c849df63 | 340 | && PREV_INSN (X) != NULL \ |
341 | && NEXT_INSN (PREV_INSN (X)) == X \ | |
342 | ? PREV_INSN (X) : NULL) | |
343 | ||
759bebca | 344 | /* Define macros to access the `code' field of the rtx. */ |
345 | ||
0fd4500a | 346 | #define GET_CODE(RTX) ((enum rtx_code) (RTX)->code) |
2aea9e36 | 347 | #define PUT_CODE(RTX, CODE) ((RTX)->code = (CODE)) |
759bebca | 348 | |
0fd4500a | 349 | #define GET_MODE(RTX) ((enum machine_mode) (RTX)->mode) |
2aea9e36 | 350 | #define PUT_MODE(RTX, MODE) ((RTX)->mode = (MODE)) |
759bebca | 351 | |
759bebca | 352 | /* RTL vector. These appear inside RTX's when there is a need |
353 | for a variable number of things. The principle use is inside | |
354 | PARALLEL expressions. */ | |
355 | ||
ba72912a | 356 | struct GTY((variable_size)) rtvec_def { |
0dbd1c74 | 357 | int num_elem; /* number of elements */ |
1f3233d1 | 358 | rtx GTY ((length ("%h.num_elem"))) elem[1]; |
6a3e3d6d | 359 | }; |
759bebca | 360 | |
361 | #define NULL_RTVEC (rtvec) 0 | |
362 | ||
363 | #define GET_NUM_ELEM(RTVEC) ((RTVEC)->num_elem) | |
0dbd1c74 | 364 | #define PUT_NUM_ELEM(RTVEC, NUM) ((RTVEC)->num_elem = (NUM)) |
759bebca | 365 | |
e75781d3 | 366 | /* Predicate yielding nonzero iff X is an rtx for a register. */ |
759bebca | 367 | #define REG_P(X) (GET_CODE (X) == REG) |
368 | ||
e75781d3 | 369 | /* Predicate yielding nonzero iff X is an rtx for a memory location. */ |
370 | #define MEM_P(X) (GET_CODE (X) == MEM) | |
371 | ||
9ca2c29a | 372 | /* Predicate yielding nonzero iff X is an rtx for a constant integer. */ |
97590808 | 373 | #define CONST_INT_P(X) (GET_CODE (X) == CONST_INT) |
374 | ||
33274180 | 375 | /* Predicate yielding true iff X is an rtx for a double-int |
376 | or floating point constant. */ | |
377 | #define CONST_DOUBLE_P(X) (GET_CODE (X) == CONST_DOUBLE) | |
378 | ||
1deb248e | 379 | /* Predicate yielding nonzero iff X is a label insn. */ |
380 | #define LABEL_P(X) (GET_CODE (X) == CODE_LABEL) | |
381 | ||
382 | /* Predicate yielding nonzero iff X is a jump insn. */ | |
383 | #define JUMP_P(X) (GET_CODE (X) == JUMP_INSN) | |
384 | ||
e75781d3 | 385 | /* Predicate yielding nonzero iff X is a call insn. */ |
386 | #define CALL_P(X) (GET_CODE (X) == CALL_INSN) | |
387 | ||
388 | /* Predicate yielding nonzero iff X is an insn that cannot jump. */ | |
389 | #define NONJUMP_INSN_P(X) (GET_CODE (X) == INSN) | |
390 | ||
9845d120 | 391 | /* Predicate yielding nonzero iff X is a debug note/insn. */ |
392 | #define DEBUG_INSN_P(X) (GET_CODE (X) == DEBUG_INSN) | |
393 | ||
394 | /* Predicate yielding nonzero iff X is an insn that is not a debug insn. */ | |
395 | #define NONDEBUG_INSN_P(X) (INSN_P (X) && !DEBUG_INSN_P (X)) | |
396 | ||
397 | /* Nonzero if DEBUG_INSN_P may possibly hold. */ | |
398 | #define MAY_HAVE_DEBUG_INSNS MAY_HAVE_DEBUG_STMTS | |
399 | ||
e75781d3 | 400 | /* Predicate yielding nonzero iff X is a real insn. */ |
401 | #define INSN_P(X) \ | |
9845d120 | 402 | (NONJUMP_INSN_P (X) || DEBUG_INSN_P (X) || JUMP_P (X) || CALL_P (X)) |
e75781d3 | 403 | |
1deb248e | 404 | /* Predicate yielding nonzero iff X is a note insn. */ |
405 | #define NOTE_P(X) (GET_CODE (X) == NOTE) | |
406 | ||
407 | /* Predicate yielding nonzero iff X is a barrier insn. */ | |
408 | #define BARRIER_P(X) (GET_CODE (X) == BARRIER) | |
409 | ||
410 | /* Predicate yielding nonzero iff X is a data for a jump table. */ | |
411 | #define JUMP_TABLE_DATA_P(INSN) \ | |
412 | (JUMP_P (INSN) && (GET_CODE (PATTERN (INSN)) == ADDR_VEC || \ | |
413 | GET_CODE (PATTERN (INSN)) == ADDR_DIFF_VEC)) | |
414 | ||
6720e96c | 415 | /* 1 if X is a unary operator. */ |
416 | ||
417 | #define UNARY_P(X) \ | |
418 | (GET_RTX_CLASS (GET_CODE (X)) == RTX_UNARY) | |
419 | ||
420 | /* 1 if X is a binary operator. */ | |
421 | ||
422 | #define BINARY_P(X) \ | |
423 | ((GET_RTX_CLASS (GET_CODE (X)) & RTX_BINARY_MASK) == RTX_BINARY_RESULT) | |
424 | ||
425 | /* 1 if X is an arithmetic operator. */ | |
426 | ||
427 | #define ARITHMETIC_P(X) \ | |
428 | ((GET_RTX_CLASS (GET_CODE (X)) & RTX_ARITHMETIC_MASK) \ | |
429 | == RTX_ARITHMETIC_RESULT) | |
430 | ||
431 | /* 1 if X is an arithmetic operator. */ | |
432 | ||
433 | #define COMMUTATIVE_ARITH_P(X) \ | |
434 | (GET_RTX_CLASS (GET_CODE (X)) == RTX_COMM_ARITH) | |
435 | ||
436 | /* 1 if X is a commutative arithmetic operator or a comparison operator. | |
437 | These two are sometimes selected together because it is possible to | |
438 | swap the two operands. */ | |
439 | ||
440 | #define SWAPPABLE_OPERANDS_P(X) \ | |
441 | ((1 << GET_RTX_CLASS (GET_CODE (X))) \ | |
442 | & ((1 << RTX_COMM_ARITH) | (1 << RTX_COMM_COMPARE) \ | |
443 | | (1 << RTX_COMPARE))) | |
444 | ||
445 | /* 1 if X is a non-commutative operator. */ | |
446 | ||
447 | #define NON_COMMUTATIVE_P(X) \ | |
448 | ((GET_RTX_CLASS (GET_CODE (X)) & RTX_COMMUTATIVE_MASK) \ | |
449 | == RTX_NON_COMMUTATIVE_RESULT) | |
450 | ||
451 | /* 1 if X is a commutative operator on integers. */ | |
452 | ||
453 | #define COMMUTATIVE_P(X) \ | |
454 | ((GET_RTX_CLASS (GET_CODE (X)) & RTX_COMMUTATIVE_MASK) \ | |
455 | == RTX_COMMUTATIVE_RESULT) | |
456 | ||
457 | /* 1 if X is a relational operator. */ | |
458 | ||
459 | #define COMPARISON_P(X) \ | |
460 | ((GET_RTX_CLASS (GET_CODE (X)) & RTX_COMPARE_MASK) == RTX_COMPARE_RESULT) | |
461 | ||
759bebca | 462 | /* 1 if X is a constant value that is an integer. */ |
463 | ||
464 | #define CONSTANT_P(X) \ | |
0824c0d2 | 465 | (GET_RTX_CLASS (GET_CODE (X)) == RTX_CONST_OBJ) |
759bebca | 466 | |
6720e96c | 467 | /* 1 if X can be used to represent an object. */ |
468 | #define OBJECT_P(X) \ | |
469 | ((GET_RTX_CLASS (GET_CODE (X)) & RTX_OBJ_MASK) == RTX_OBJ_RESULT) | |
470 | ||
759bebca | 471 | /* General accessor macros for accessing the fields of an rtx. */ |
472 | ||
0c4e40c5 | 473 | #if defined ENABLE_RTL_CHECKING && (GCC_VERSION >= 2007) |
25999090 | 474 | /* The bit with a star outside the statement expr and an & inside is |
475 | so that N can be evaluated only once. */ | |
db7e2f59 | 476 | #define RTL_CHECK1(RTX, N, C1) __extension__ \ |
0c16c31b | 477 | (*({ __typeof (RTX) const _rtx = (RTX); const int _n = (N); \ |
861589fe | 478 | const enum rtx_code _code = GET_CODE (_rtx); \ |
25999090 | 479 | if (_n < 0 || _n >= GET_RTX_LENGTH (_code)) \ |
017c31d6 | 480 | rtl_check_failed_bounds (_rtx, _n, __FILE__, __LINE__, \ |
481 | __FUNCTION__); \ | |
25999090 | 482 | if (GET_RTX_FORMAT(_code)[_n] != C1) \ |
017c31d6 | 483 | rtl_check_failed_type1 (_rtx, _n, C1, __FILE__, __LINE__, \ |
484 | __FUNCTION__); \ | |
bf6b5685 | 485 | &_rtx->u.fld[_n]; })) |
25999090 | 486 | |
db7e2f59 | 487 | #define RTL_CHECK2(RTX, N, C1, C2) __extension__ \ |
0c16c31b | 488 | (*({ __typeof (RTX) const _rtx = (RTX); const int _n = (N); \ |
861589fe | 489 | const enum rtx_code _code = GET_CODE (_rtx); \ |
25999090 | 490 | if (_n < 0 || _n >= GET_RTX_LENGTH (_code)) \ |
017c31d6 | 491 | rtl_check_failed_bounds (_rtx, _n, __FILE__, __LINE__, \ |
492 | __FUNCTION__); \ | |
25999090 | 493 | if (GET_RTX_FORMAT(_code)[_n] != C1 \ |
494 | && GET_RTX_FORMAT(_code)[_n] != C2) \ | |
495 | rtl_check_failed_type2 (_rtx, _n, C1, C2, __FILE__, __LINE__, \ | |
19fafbd3 | 496 | __FUNCTION__); \ |
bf6b5685 | 497 | &_rtx->u.fld[_n]; })) |
25999090 | 498 | |
db7e2f59 | 499 | #define RTL_CHECKC1(RTX, N, C) __extension__ \ |
0c16c31b | 500 | (*({ __typeof (RTX) const _rtx = (RTX); const int _n = (N); \ |
017c31d6 | 501 | if (GET_CODE (_rtx) != (C)) \ |
502 | rtl_check_failed_code1 (_rtx, (C), __FILE__, __LINE__, \ | |
503 | __FUNCTION__); \ | |
bf6b5685 | 504 | &_rtx->u.fld[_n]; })) |
005d995b | 505 | |
db7e2f59 | 506 | #define RTL_CHECKC2(RTX, N, C1, C2) __extension__ \ |
0c16c31b | 507 | (*({ __typeof (RTX) const _rtx = (RTX); const int _n = (N); \ |
861589fe | 508 | const enum rtx_code _code = GET_CODE (_rtx); \ |
017c31d6 | 509 | if (_code != (C1) && _code != (C2)) \ |
510 | rtl_check_failed_code2 (_rtx, (C1), (C2), __FILE__, __LINE__, \ | |
511 | __FUNCTION__); \ | |
bf6b5685 | 512 | &_rtx->u.fld[_n]; })) |
005d995b | 513 | |
db7e2f59 | 514 | #define RTVEC_ELT(RTVEC, I) __extension__ \ |
0c16c31b | 515 | (*({ __typeof (RTVEC) const _rtvec = (RTVEC); const int _i = (I); \ |
25999090 | 516 | if (_i < 0 || _i >= GET_NUM_ELEM (_rtvec)) \ |
517 | rtvec_check_failed_bounds (_rtvec, _i, __FILE__, __LINE__, \ | |
19fafbd3 | 518 | __FUNCTION__); \ |
25999090 | 519 | &_rtvec->elem[_i]; })) |
520 | ||
bf6b5685 | 521 | #define XWINT(RTX, N) __extension__ \ |
0c16c31b | 522 | (*({ __typeof (RTX) const _rtx = (RTX); const int _n = (N); \ |
bf6b5685 | 523 | const enum rtx_code _code = GET_CODE (_rtx); \ |
524 | if (_n < 0 || _n >= GET_RTX_LENGTH (_code)) \ | |
525 | rtl_check_failed_bounds (_rtx, _n, __FILE__, __LINE__, \ | |
526 | __FUNCTION__); \ | |
527 | if (GET_RTX_FORMAT(_code)[_n] != 'w') \ | |
528 | rtl_check_failed_type1 (_rtx, _n, 'w', __FILE__, __LINE__, \ | |
529 | __FUNCTION__); \ | |
530 | &_rtx->u.hwint[_n]; })) | |
531 | ||
532 | #define XCWINT(RTX, N, C) __extension__ \ | |
0c16c31b | 533 | (*({ __typeof (RTX) const _rtx = (RTX); \ |
bf6b5685 | 534 | if (GET_CODE (_rtx) != (C)) \ |
535 | rtl_check_failed_code1 (_rtx, (C), __FILE__, __LINE__, \ | |
536 | __FUNCTION__); \ | |
537 | &_rtx->u.hwint[N]; })) | |
538 | ||
e8aaae4e | 539 | #define XCMWINT(RTX, N, C, M) __extension__ \ |
0c16c31b | 540 | (*({ __typeof (RTX) const _rtx = (RTX); \ |
e8aaae4e | 541 | if (GET_CODE (_rtx) != (C) || GET_MODE (_rtx) != (M)) \ |
542 | rtl_check_failed_code_mode (_rtx, (C), (M), false, __FILE__, \ | |
543 | __LINE__, __FUNCTION__); \ | |
544 | &_rtx->u.hwint[N]; })) | |
545 | ||
546 | #define XCNMPRV(RTX, C, M) __extension__ \ | |
0c16c31b | 547 | ({ __typeof (RTX) const _rtx = (RTX); \ |
e8aaae4e | 548 | if (GET_CODE (_rtx) != (C) || GET_MODE (_rtx) == (M)) \ |
549 | rtl_check_failed_code_mode (_rtx, (C), (M), true, __FILE__, \ | |
550 | __LINE__, __FUNCTION__); \ | |
551 | &_rtx->u.rv; }) | |
552 | ||
e397ad8e | 553 | #define XCNMPFV(RTX, C, M) __extension__ \ |
6463c271 | 554 | ({ __typeof (RTX) const _rtx = (RTX); \ |
e397ad8e | 555 | if (GET_CODE (_rtx) != (C) || GET_MODE (_rtx) == (M)) \ |
556 | rtl_check_failed_code_mode (_rtx, (C), (M), true, __FILE__, \ | |
557 | __LINE__, __FUNCTION__); \ | |
558 | &_rtx->u.fv; }) | |
559 | ||
f2d0e9f1 | 560 | #define BLOCK_SYMBOL_CHECK(RTX) __extension__ \ |
0c16c31b | 561 | ({ __typeof (RTX) const _symbol = (RTX); \ |
562 | const unsigned int flags = RTL_CHECKC1 (_symbol, 1, SYMBOL_REF).rt_int; \ | |
6617cbc1 | 563 | if ((flags & SYMBOL_FLAG_HAS_BLOCK_INFO) == 0) \ |
f2d0e9f1 | 564 | rtl_check_failed_block_symbol (__FILE__, __LINE__, \ |
565 | __FUNCTION__); \ | |
566 | &_symbol->u.block_sym; }) | |
567 | ||
dd9b9fc5 | 568 | extern void rtl_check_failed_bounds (const_rtx, int, const char *, int, |
3ad4992f | 569 | const char *) |
25999090 | 570 | ATTRIBUTE_NORETURN; |
dd9b9fc5 | 571 | extern void rtl_check_failed_type1 (const_rtx, int, int, const char *, int, |
3ad4992f | 572 | const char *) |
25999090 | 573 | ATTRIBUTE_NORETURN; |
dd9b9fc5 | 574 | extern void rtl_check_failed_type2 (const_rtx, int, int, int, const char *, |
3ad4992f | 575 | int, const char *) |
25999090 | 576 | ATTRIBUTE_NORETURN; |
dd9b9fc5 | 577 | extern void rtl_check_failed_code1 (const_rtx, enum rtx_code, const char *, |
3ad4992f | 578 | int, const char *) |
005d995b | 579 | ATTRIBUTE_NORETURN; |
dd9b9fc5 | 580 | extern void rtl_check_failed_code2 (const_rtx, enum rtx_code, enum rtx_code, |
3ad4992f | 581 | const char *, int, const char *) |
005d995b | 582 | ATTRIBUTE_NORETURN; |
dd9b9fc5 | 583 | extern void rtl_check_failed_code_mode (const_rtx, enum rtx_code, enum machine_mode, |
e8aaae4e | 584 | bool, const char *, int, const char *) |
585 | ATTRIBUTE_NORETURN; | |
f2d0e9f1 | 586 | extern void rtl_check_failed_block_symbol (const char *, int, const char *) |
587 | ATTRIBUTE_NORETURN; | |
dd9b9fc5 | 588 | extern void rtvec_check_failed_bounds (const_rtvec, int, const char *, int, |
3ad4992f | 589 | const char *) |
25999090 | 590 | ATTRIBUTE_NORETURN; |
591 | ||
0c4e40c5 | 592 | #else /* not ENABLE_RTL_CHECKING */ |
25999090 | 593 | |
bf6b5685 | 594 | #define RTL_CHECK1(RTX, N, C1) ((RTX)->u.fld[N]) |
595 | #define RTL_CHECK2(RTX, N, C1, C2) ((RTX)->u.fld[N]) | |
596 | #define RTL_CHECKC1(RTX, N, C) ((RTX)->u.fld[N]) | |
597 | #define RTL_CHECKC2(RTX, N, C1, C2) ((RTX)->u.fld[N]) | |
005d995b | 598 | #define RTVEC_ELT(RTVEC, I) ((RTVEC)->elem[I]) |
bf6b5685 | 599 | #define XWINT(RTX, N) ((RTX)->u.hwint[N]) |
600 | #define XCWINT(RTX, N, C) ((RTX)->u.hwint[N]) | |
e8aaae4e | 601 | #define XCMWINT(RTX, N, C, M) ((RTX)->u.hwint[N]) |
602 | #define XCNMWINT(RTX, N, C, M) ((RTX)->u.hwint[N]) | |
603 | #define XCNMPRV(RTX, C, M) (&(RTX)->u.rv) | |
e397ad8e | 604 | #define XCNMPFV(RTX, C, M) (&(RTX)->u.fv) |
f2d0e9f1 | 605 | #define BLOCK_SYMBOL_CHECK(RTX) (&(RTX)->u.block_sym) |
25999090 | 606 | |
607 | #endif | |
608 | ||
e7f75e15 | 609 | /* General accessor macros for accessing the flags of an rtx. */ |
610 | ||
611 | /* Access an individual rtx flag, with no checking of any kind. */ | |
612 | #define RTX_FLAG(RTX, FLAG) ((RTX)->FLAG) | |
613 | ||
9b535aa8 | 614 | #if defined ENABLE_RTL_FLAG_CHECKING && (GCC_VERSION >= 2007) |
3c6858c6 | 615 | #define RTL_FLAG_CHECK1(NAME, RTX, C1) __extension__ \ |
0c16c31b | 616 | ({ __typeof (RTX) const _rtx = (RTX); \ |
e7f75e15 | 617 | if (GET_CODE(_rtx) != C1) \ |
3c6858c6 | 618 | rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \ |
1a97be37 | 619 | __FUNCTION__); \ |
e7f75e15 | 620 | _rtx; }) |
621 | ||
3c6858c6 | 622 | #define RTL_FLAG_CHECK2(NAME, RTX, C1, C2) __extension__ \ |
0c16c31b | 623 | ({ __typeof (RTX) const _rtx = (RTX); \ |
e7f75e15 | 624 | if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2) \ |
3c6858c6 | 625 | rtl_check_failed_flag (NAME,_rtx, __FILE__, __LINE__, \ |
1a97be37 | 626 | __FUNCTION__); \ |
e7f75e15 | 627 | _rtx; }) |
628 | ||
3c6858c6 | 629 | #define RTL_FLAG_CHECK3(NAME, RTX, C1, C2, C3) __extension__ \ |
0c16c31b | 630 | ({ __typeof (RTX) const _rtx = (RTX); \ |
1a97be37 | 631 | if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \ |
e7f75e15 | 632 | && GET_CODE(_rtx) != C3) \ |
3c6858c6 | 633 | rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \ |
1a97be37 | 634 | __FUNCTION__); \ |
e7f75e15 | 635 | _rtx; }) |
636 | ||
3c6858c6 | 637 | #define RTL_FLAG_CHECK4(NAME, RTX, C1, C2, C3, C4) __extension__ \ |
0c16c31b | 638 | ({ __typeof (RTX) const _rtx = (RTX); \ |
1a97be37 | 639 | if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \ |
e7f75e15 | 640 | && GET_CODE(_rtx) != C3 && GET_CODE(_rtx) != C4) \ |
3c6858c6 | 641 | rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \ |
1a97be37 | 642 | __FUNCTION__); \ |
e7f75e15 | 643 | _rtx; }) |
644 | ||
3c6858c6 | 645 | #define RTL_FLAG_CHECK5(NAME, RTX, C1, C2, C3, C4, C5) __extension__ \ |
0c16c31b | 646 | ({ __typeof (RTX) const _rtx = (RTX); \ |
1a97be37 | 647 | if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \ |
e7f75e15 | 648 | && GET_CODE(_rtx) != C3 && GET_CODE(_rtx) != C4 \ |
649 | && GET_CODE(_rtx) != C5) \ | |
3c6858c6 | 650 | rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \ |
1a97be37 | 651 | __FUNCTION__); \ |
e7f75e15 | 652 | _rtx; }) |
653 | ||
3c6858c6 | 654 | #define RTL_FLAG_CHECK6(NAME, RTX, C1, C2, C3, C4, C5, C6) \ |
655 | __extension__ \ | |
0c16c31b | 656 | ({ __typeof (RTX) const _rtx = (RTX); \ |
1a97be37 | 657 | if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \ |
e7f75e15 | 658 | && GET_CODE(_rtx) != C3 && GET_CODE(_rtx) != C4 \ |
659 | && GET_CODE(_rtx) != C5 && GET_CODE(_rtx) != C6) \ | |
3c6858c6 | 660 | rtl_check_failed_flag (NAME,_rtx, __FILE__, __LINE__, \ |
1a97be37 | 661 | __FUNCTION__); \ |
e7f75e15 | 662 | _rtx; }) |
663 | ||
3c6858c6 | 664 | #define RTL_FLAG_CHECK7(NAME, RTX, C1, C2, C3, C4, C5, C6, C7) \ |
665 | __extension__ \ | |
0c16c31b | 666 | ({ __typeof (RTX) const _rtx = (RTX); \ |
1a97be37 | 667 | if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \ |
e7f75e15 | 668 | && GET_CODE(_rtx) != C3 && GET_CODE(_rtx) != C4 \ |
669 | && GET_CODE(_rtx) != C5 && GET_CODE(_rtx) != C6 \ | |
670 | && GET_CODE(_rtx) != C7) \ | |
3c6858c6 | 671 | rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \ |
1a97be37 | 672 | __FUNCTION__); \ |
e7f75e15 | 673 | _rtx; }) |
674 | ||
3c6858c6 | 675 | #define RTL_FLAG_CHECK8(NAME, RTX, C1, C2, C3, C4, C5, C6, C7, C8) \ |
676 | __extension__ \ | |
0c16c31b | 677 | ({ __typeof (RTX) const _rtx = (RTX); \ |
1a97be37 | 678 | if (GET_CODE(_rtx) != C1 && GET_CODE(_rtx) != C2 \ |
e7f75e15 | 679 | && GET_CODE(_rtx) != C3 && GET_CODE(_rtx) != C4 \ |
680 | && GET_CODE(_rtx) != C5 && GET_CODE(_rtx) != C6 \ | |
681 | && GET_CODE(_rtx) != C7 && GET_CODE(_rtx) != C8) \ | |
3c6858c6 | 682 | rtl_check_failed_flag (NAME, _rtx, __FILE__, __LINE__, \ |
1a97be37 | 683 | __FUNCTION__); \ |
e7f75e15 | 684 | _rtx; }) |
685 | ||
dd9b9fc5 | 686 | extern void rtl_check_failed_flag (const char *, const_rtx, const char *, |
3ad4992f | 687 | int, const char *) |
e7f75e15 | 688 | ATTRIBUTE_NORETURN |
689 | ; | |
690 | ||
691 | #else /* not ENABLE_RTL_FLAG_CHECKING */ | |
692 | ||
3c6858c6 | 693 | #define RTL_FLAG_CHECK1(NAME, RTX, C1) (RTX) |
694 | #define RTL_FLAG_CHECK2(NAME, RTX, C1, C2) (RTX) | |
695 | #define RTL_FLAG_CHECK3(NAME, RTX, C1, C2, C3) (RTX) | |
696 | #define RTL_FLAG_CHECK4(NAME, RTX, C1, C2, C3, C4) (RTX) | |
1a97be37 | 697 | #define RTL_FLAG_CHECK5(NAME, RTX, C1, C2, C3, C4, C5) (RTX) |
3c6858c6 | 698 | #define RTL_FLAG_CHECK6(NAME, RTX, C1, C2, C3, C4, C5, C6) (RTX) |
699 | #define RTL_FLAG_CHECK7(NAME, RTX, C1, C2, C3, C4, C5, C6, C7) (RTX) | |
700 | #define RTL_FLAG_CHECK8(NAME, RTX, C1, C2, C3, C4, C5, C6, C7, C8) (RTX) | |
e7f75e15 | 701 | #endif |
702 | ||
993d9e55 | 703 | #define XINT(RTX, N) (RTL_CHECK2 (RTX, N, 'i', 'n').rt_int) |
704 | #define XSTR(RTX, N) (RTL_CHECK2 (RTX, N, 's', 'S').rt_str) | |
705 | #define XEXP(RTX, N) (RTL_CHECK2 (RTX, N, 'e', 'u').rt_rtx) | |
706 | #define XVEC(RTX, N) (RTL_CHECK2 (RTX, N, 'E', 'V').rt_rtvec) | |
707 | #define XMODE(RTX, N) (RTL_CHECK1 (RTX, N, 'M').rt_type) | |
993d9e55 | 708 | #define XTREE(RTX, N) (RTL_CHECK1 (RTX, N, 't').rt_tree) |
709 | #define XBBDEF(RTX, N) (RTL_CHECK1 (RTX, N, 'B').rt_bb) | |
710 | #define XTMPL(RTX, N) (RTL_CHECK1 (RTX, N, 'T').rt_str) | |
25999090 | 711 | |
712 | #define XVECEXP(RTX, N, M) RTVEC_ELT (XVEC (RTX, N), M) | |
713 | #define XVECLEN(RTX, N) GET_NUM_ELEM (XVEC (RTX, N)) | |
714 | ||
bf6b5685 | 715 | /* These are like XINT, etc. except that they expect a '0' field instead |
25999090 | 716 | of the normal type code. */ |
717 | ||
993d9e55 | 718 | #define X0INT(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_int) |
719 | #define X0UINT(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_uint) | |
720 | #define X0STR(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_str) | |
721 | #define X0EXP(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_rtx) | |
722 | #define X0VEC(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_rtvec) | |
723 | #define X0MODE(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_type) | |
993d9e55 | 724 | #define X0TREE(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_tree) |
725 | #define X0BBDEF(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_bb) | |
017c31d6 | 726 | #define X0ADVFLAGS(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_addr_diff_vec_flags) |
727 | #define X0CSELIB(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_cselib) | |
993d9e55 | 728 | #define X0MEMATTR(RTX, N) (RTL_CHECKC1 (RTX, N, MEM).rt_mem) |
729 | #define X0REGATTR(RTX, N) (RTL_CHECKC1 (RTX, N, REG).rt_reg) | |
7c266bb1 | 730 | #define X0CONSTANT(RTX, N) (RTL_CHECK1 (RTX, N, '0').rt_constant) |
017c31d6 | 731 | |
bf6b5685 | 732 | /* Access a '0' field with any type. */ |
733 | #define X0ANY(RTX, N) RTL_CHECK1 (RTX, N, '0') | |
734 | ||
993d9e55 | 735 | #define XCINT(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_int) |
736 | #define XCUINT(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_uint) | |
737 | #define XCSTR(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_str) | |
738 | #define XCEXP(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_rtx) | |
739 | #define XCVEC(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_rtvec) | |
740 | #define XCMODE(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_type) | |
993d9e55 | 741 | #define XCTREE(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_tree) |
742 | #define XCBBDEF(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_bb) | |
017c31d6 | 743 | #define XCCSELIB(RTX, N, C) (RTL_CHECKC1 (RTX, N, C).rt_cselib) |
005d995b | 744 | |
745 | #define XCVECEXP(RTX, N, M, C) RTVEC_ELT (XCVEC (RTX, N, C), M) | |
746 | #define XCVECLEN(RTX, N, C) GET_NUM_ELEM (XCVEC (RTX, N, C)) | |
747 | ||
993d9e55 | 748 | #define XC2EXP(RTX, N, C1, C2) (RTL_CHECKC2 (RTX, N, C1, C2).rt_rtx) |
759bebca | 749 | \f |
750 | /* ACCESS MACROS for particular fields of insns. */ | |
751 | ||
752 | /* Holds a unique number for each insn. | |
753 | These are not necessarily sequentially increasing. */ | |
017c31d6 | 754 | #define INSN_UID(INSN) XINT (INSN, 0) |
759bebca | 755 | |
756 | /* Chain insns together in sequence. */ | |
017c31d6 | 757 | #define PREV_INSN(INSN) XEXP (INSN, 1) |
758 | #define NEXT_INSN(INSN) XEXP (INSN, 2) | |
759bebca | 759 | |
ab87d1bc | 760 | #define BLOCK_FOR_INSN(INSN) XBBDEF (INSN, 3) |
3a55c112 | 761 | |
762 | /* The body of an insn. */ | |
763 | #define PATTERN(INSN) XEXP (INSN, 4) | |
764 | ||
765 | #define INSN_LOCATOR(INSN) XINT (INSN, 5) | |
e60a6f7b | 766 | /* LOCATION of an RTX if relevant. */ |
767 | #define RTL_LOCATION(X) (INSN_P (X) ? \ | |
b2c4a3f0 | 768 | locator_location (INSN_LOCATOR (X)) \ |
e60a6f7b | 769 | : UNKNOWN_LOCATION) |
770 | /* LOCATION of current INSN. */ | |
771 | #define CURR_INSN_LOCATION (locator_location (curr_insn_locator ())) | |
759bebca | 772 | |
773 | /* Code number of instruction, from when it was recognized. | |
774 | -1 means this instruction has not been recognized yet. */ | |
ab87d1bc | 775 | #define INSN_CODE(INSN) XINT (INSN, 6) |
759bebca | 776 | |
3c6858c6 | 777 | #define RTX_FRAME_RELATED_P(RTX) \ |
9845d120 | 778 | (RTL_FLAG_CHECK6("RTX_FRAME_RELATED_P", (RTX), DEBUG_INSN, INSN, \ |
779 | CALL_INSN, JUMP_INSN, BARRIER, SET)->frame_related) | |
3c6858c6 | 780 | |
781 | /* 1 if RTX is an insn that has been deleted. */ | |
782 | #define INSN_DELETED_P(RTX) \ | |
9845d120 | 783 | (RTL_FLAG_CHECK7("INSN_DELETED_P", (RTX), DEBUG_INSN, INSN, \ |
784 | CALL_INSN, JUMP_INSN, \ | |
3c6858c6 | 785 | CODE_LABEL, BARRIER, NOTE)->volatil) |
786 | ||
9c2a0c05 | 787 | /* 1 if RTX is a call to a const function. Built from ECF_CONST and |
788 | TREE_READONLY. */ | |
789 | #define RTL_CONST_CALL_P(RTX) \ | |
790 | (RTL_FLAG_CHECK1("RTL_CONST_CALL_P", (RTX), CALL_INSN)->unchanging) | |
791 | ||
792 | /* 1 if RTX is a call to a pure function. Built from ECF_PURE and | |
793 | DECL_PURE_P. */ | |
794 | #define RTL_PURE_CALL_P(RTX) \ | |
795 | (RTL_FLAG_CHECK1("RTL_PURE_CALL_P", (RTX), CALL_INSN)->return_val) | |
796 | ||
3c6858c6 | 797 | /* 1 if RTX is a call to a const or pure function. */ |
9c2a0c05 | 798 | #define RTL_CONST_OR_PURE_CALL_P(RTX) \ |
799 | (RTL_CONST_CALL_P(RTX) || RTL_PURE_CALL_P(RTX)) | |
800 | ||
801 | /* 1 if RTX is a call to a looping const or pure function. Built from | |
802 | ECF_LOOPING_CONST_OR_PURE and DECL_LOOPING_CONST_OR_PURE_P. */ | |
803 | #define RTL_LOOPING_CONST_OR_PURE_CALL_P(RTX) \ | |
804 | (RTL_FLAG_CHECK1("CONST_OR_PURE_CALL_P", (RTX), CALL_INSN)->call) | |
3c6858c6 | 805 | |
806 | /* 1 if RTX is a call_insn for a sibling call. */ | |
807 | #define SIBLING_CALL_P(RTX) \ | |
808 | (RTL_FLAG_CHECK1("SIBLING_CALL_P", (RTX), CALL_INSN)->jump) | |
809 | ||
5fdf542c | 810 | /* 1 if RTX is a jump_insn, call_insn, or insn that is an annulling branch. */ |
3c6858c6 | 811 | #define INSN_ANNULLED_BRANCH_P(RTX) \ |
5fdf542c | 812 | (RTL_FLAG_CHECK3("INSN_ANNULLED_BRANCH_P", (RTX), JUMP_INSN, CALL_INSN, INSN)->unchanging) |
3c6858c6 | 813 | |
3c6858c6 | 814 | /* 1 if RTX is an insn in a delay slot and is from the target of the branch. |
815 | If the branch insn has INSN_ANNULLED_BRANCH_P set, this insn should only be | |
759bebca | 816 | executed if the branch is taken. For annulled branches with this bit |
817 | clear, the insn should be executed only if the branch is not taken. */ | |
3c6858c6 | 818 | #define INSN_FROM_TARGET_P(RTX) \ |
00f2bb6a | 819 | (RTL_FLAG_CHECK3("INSN_FROM_TARGET_P", (RTX), INSN, JUMP_INSN, CALL_INSN)->in_struct) |
759bebca | 820 | |
5bbaf5ca | 821 | /* In an ADDR_DIFF_VEC, the flags for RTX for use by branch shortening. |
822 | See the comments for ADDR_DIFF_VEC in rtl.def. */ | |
f220c8f0 | 823 | #define ADDR_DIFF_VEC_FLAGS(RTX) X0ADVFLAGS(RTX, 4) |
824 | ||
5bbaf5ca | 825 | /* In a VALUE, the value cselib has assigned to RTX. |
826 | This is a "struct cselib_val_struct", see cselib.h. */ | |
f220c8f0 | 827 | #define CSELIB_VAL_PTR(RTX) X0CSELIB(RTX, 0) |
828 | ||
759bebca | 829 | /* Holds a list of notes on what this insn does to various REGs. |
f220c8f0 | 830 | It is a chain of EXPR_LIST rtx's, where the second operand is the |
831 | chain pointer and the first operand is the REG being described. | |
759bebca | 832 | The mode field of the EXPR_LIST contains not a real machine mode |
f220c8f0 | 833 | but a value from enum reg_note. */ |
3072d30e | 834 | #define REG_NOTES(INSN) XEXP(INSN, 7) |
759bebca | 835 | |
a5701bde | 836 | /* In an ENTRY_VALUE this is the DECL_INCOMING_RTL of the argument in |
837 | question. */ | |
838 | #define ENTRY_VALUE_EXP(RTX) (RTL_CHECKC1 (RTX, 0, ENTRY_VALUE).rt_rtx) | |
839 | ||
f220c8f0 | 840 | enum reg_note |
841 | { | |
30f4db0d | 842 | #define DEF_REG_NOTE(NAME) NAME, |
843 | #include "reg-notes.def" | |
844 | #undef DEF_REG_NOTE | |
845 | REG_NOTE_MAX | |
f220c8f0 | 846 | }; |
847 | ||
759bebca | 848 | /* Define macros to extract and insert the reg-note kind in an EXPR_LIST. */ |
849 | #define REG_NOTE_KIND(LINK) ((enum reg_note) GET_MODE (LINK)) | |
017c31d6 | 850 | #define PUT_REG_NOTE_KIND(LINK, KIND) \ |
851 | PUT_MODE (LINK, (enum machine_mode) (KIND)) | |
759bebca | 852 | |
853 | /* Names for REG_NOTE's in EXPR_LIST insn's. */ | |
854 | ||
66e6c350 | 855 | extern const char * const reg_note_name[]; |
a92771b8 | 856 | #define GET_REG_NOTE_NAME(MODE) (reg_note_name[(int) (MODE)]) |
759bebca | 857 | |
ff18c271 | 858 | /* This field is only present on CALL_INSNs. It holds a chain of EXPR_LIST of |
859 | USE and CLOBBER expressions. | |
860 | USE expressions list the registers filled with arguments that | |
861 | are passed to the function. | |
862 | CLOBBER expressions document the registers explicitly clobbered | |
863 | by this CALL_INSN. | |
864 | Pseudo registers can not be mentioned in this list. */ | |
3072d30e | 865 | #define CALL_INSN_FUNCTION_USAGE(INSN) XEXP(INSN, 8) |
ff18c271 | 866 | |
759bebca | 867 | /* The label-number of a code-label. The assembler label |
868 | is made from `L' and the label-number printed in decimal. | |
869 | Label numbers are unique in a compilation. */ | |
ab87d1bc | 870 | #define CODE_LABEL_NUMBER(INSN) XINT (INSN, 6) |
759bebca | 871 | |
a3426c4c | 872 | /* In a NOTE that is a line number, this is a string for the file name that the |
873 | line is in. We use the same field to record block numbers temporarily in | |
874 | NOTE_INSN_BLOCK_BEG and NOTE_INSN_BLOCK_END notes. (We avoid lots of casts | |
875 | between ints and pointers if we use a different macro for the block number.) | |
f16b6102 | 876 | */ |
759bebca | 877 | |
0a3b3d88 | 878 | /* Opaque data. */ |
9e628780 | 879 | #define NOTE_DATA(INSN) RTL_CHECKC1 (INSN, 4, NOTE) |
880 | #define NOTE_DELETED_LABEL_NAME(INSN) XCSTR (INSN, 4, NOTE) | |
3072d30e | 881 | #define SET_INSN_DELETED(INSN) set_insn_deleted (INSN); |
9e628780 | 882 | #define NOTE_BLOCK(INSN) XCTREE (INSN, 4, NOTE) |
883 | #define NOTE_EH_HANDLER(INSN) XCINT (INSN, 4, NOTE) | |
884 | #define NOTE_BASIC_BLOCK(INSN) XCBBDEF (INSN, 4, NOTE) | |
885 | #define NOTE_VAR_LOCATION(INSN) XCEXP (INSN, 4, NOTE) | |
a3426c4c | 886 | |
759bebca | 887 | /* In a NOTE that is a line number, this is the line number. |
888 | Other kinds of NOTEs are identified by negative numbers here. */ | |
9e628780 | 889 | #define NOTE_KIND(INSN) XCINT (INSN, 5, NOTE) |
759bebca | 890 | |
83458610 | 891 | /* Nonzero if INSN is a note marking the beginning of a basic block. */ |
1a97be37 | 892 | #define NOTE_INSN_BASIC_BLOCK_P(INSN) \ |
83458610 | 893 | (GET_CODE (INSN) == NOTE \ |
ad4583d9 | 894 | && NOTE_KIND (INSN) == NOTE_INSN_BASIC_BLOCK) |
83458610 | 895 | |
5923a5e7 | 896 | /* Variable declaration and the location of a variable. */ |
9845d120 | 897 | #define PAT_VAR_LOCATION_DECL(PAT) (XCTREE ((PAT), 0, VAR_LOCATION)) |
898 | #define PAT_VAR_LOCATION_LOC(PAT) (XCEXP ((PAT), 1, VAR_LOCATION)) | |
759bebca | 899 | |
d53bb226 | 900 | /* Initialization status of the variable in the location. Status |
901 | can be unknown, uninitialized or initialized. See enumeration | |
902 | type below. */ | |
9845d120 | 903 | #define PAT_VAR_LOCATION_STATUS(PAT) \ |
904 | ((enum var_init_status) (XCINT ((PAT), 2, VAR_LOCATION))) | |
905 | ||
906 | /* Accessors for a NOTE_INSN_VAR_LOCATION. */ | |
907 | #define NOTE_VAR_LOCATION_DECL(NOTE) \ | |
908 | PAT_VAR_LOCATION_DECL (NOTE_VAR_LOCATION (NOTE)) | |
909 | #define NOTE_VAR_LOCATION_LOC(NOTE) \ | |
910 | PAT_VAR_LOCATION_LOC (NOTE_VAR_LOCATION (NOTE)) | |
911 | #define NOTE_VAR_LOCATION_STATUS(NOTE) \ | |
912 | PAT_VAR_LOCATION_STATUS (NOTE_VAR_LOCATION (NOTE)) | |
913 | ||
914 | /* The VAR_LOCATION rtx in a DEBUG_INSN. */ | |
915 | #define INSN_VAR_LOCATION(INSN) PATTERN (INSN) | |
916 | ||
917 | /* Accessors for a tree-expanded var location debug insn. */ | |
918 | #define INSN_VAR_LOCATION_DECL(INSN) \ | |
919 | PAT_VAR_LOCATION_DECL (INSN_VAR_LOCATION (INSN)) | |
920 | #define INSN_VAR_LOCATION_LOC(INSN) \ | |
921 | PAT_VAR_LOCATION_LOC (INSN_VAR_LOCATION (INSN)) | |
922 | #define INSN_VAR_LOCATION_STATUS(INSN) \ | |
923 | PAT_VAR_LOCATION_STATUS (INSN_VAR_LOCATION (INSN)) | |
924 | ||
925 | /* Expand to the RTL that denotes an unknown variable location in a | |
926 | DEBUG_INSN. */ | |
927 | #define gen_rtx_UNKNOWN_VAR_LOC() (gen_rtx_CLOBBER (VOIDmode, const0_rtx)) | |
928 | ||
929 | /* Determine whether X is such an unknown location. */ | |
930 | #define VAR_LOC_UNKNOWN_P(X) \ | |
931 | (GET_CODE (X) == CLOBBER && XEXP ((X), 0) == const0_rtx) | |
932 | ||
933 | /* 1 if RTX is emitted after a call, but it should take effect before | |
934 | the call returns. */ | |
935 | #define NOTE_DURING_CALL_P(RTX) \ | |
936 | (RTL_FLAG_CHECK1("NOTE_VAR_LOCATION_DURING_CALL_P", (RTX), NOTE)->call) | |
d53bb226 | 937 | |
23dd51cb | 938 | /* DEBUG_EXPR_DECL corresponding to a DEBUG_EXPR RTX. */ |
939 | #define DEBUG_EXPR_TREE_DECL(RTX) XCTREE (RTX, 0, DEBUG_EXPR) | |
940 | ||
f9c61ef7 | 941 | /* VAR_DECL/PARM_DECL DEBUG_IMPLICIT_PTR takes address of. */ |
942 | #define DEBUG_IMPLICIT_PTR_DECL(RTX) XCTREE (RTX, 0, DEBUG_IMPLICIT_PTR) | |
943 | ||
d53bb226 | 944 | /* Possible initialization status of a variable. When requested |
945 | by the user, this information is tracked and recorded in the DWARF | |
946 | debug information, along with the variable's location. */ | |
947 | enum var_init_status | |
948 | { | |
949 | VAR_INIT_STATUS_UNKNOWN, | |
950 | VAR_INIT_STATUS_UNINITIALIZED, | |
951 | VAR_INIT_STATUS_INITIALIZED | |
952 | }; | |
953 | ||
ad4583d9 | 954 | /* Codes that appear in the NOTE_KIND field for kinds of notes |
30f4db0d | 955 | that are not line numbers. These codes are all negative. |
48e1416a | 956 | |
94c7f239 | 957 | Notice that we do not try to use zero here for any of |
958 | the special note codes because sometimes the source line | |
959 | actually can be zero! This happens (for example) when we | |
960 | are generating code for the per-translation-unit constructor | |
30f4db0d | 961 | and destructor routines for some C++ translation unit. */ |
759bebca | 962 | |
0c981e42 | 963 | enum insn_note |
964 | { | |
30f4db0d | 965 | #define DEF_INSN_NOTE(NAME) NAME, |
966 | #include "insn-notes.def" | |
967 | #undef DEF_INSN_NOTE | |
5923a5e7 | 968 | |
0c981e42 | 969 | NOTE_INSN_MAX |
970 | }; | |
64fdc3d4 | 971 | |
759bebca | 972 | /* Names for NOTE insn's other than line numbers. */ |
973 | ||
ad4583d9 | 974 | extern const char * const note_insn_name[NOTE_INSN_MAX]; |
0c981e42 | 975 | #define GET_NOTE_INSN_NAME(NOTE_CODE) \ |
ad4583d9 | 976 | (note_insn_name[(NOTE_CODE)]) |
759bebca | 977 | |
978 | /* The name of a label, in case it corresponds to an explicit label | |
979 | in the input source code. */ | |
ab87d1bc | 980 | #define LABEL_NAME(RTX) XCSTR (RTX, 7, CODE_LABEL) |
759bebca | 981 | |
982 | /* In jump.c, each label contains a count of the number | |
983 | of LABEL_REFs that point at it, so unused labels can be deleted. */ | |
3a55c112 | 984 | #define LABEL_NUSES(RTX) XCINT (RTX, 5, CODE_LABEL) |
759bebca | 985 | |
a7ae1e59 | 986 | /* Labels carry a two-bit field composed of the ->jump and ->call |
987 | bits. This field indicates whether the label is an alternate | |
988 | entry point, and if so, what kind. */ | |
989 | enum label_kind | |
990 | { | |
991 | LABEL_NORMAL = 0, /* ordinary label */ | |
992 | LABEL_STATIC_ENTRY, /* alternate entry point, not exported */ | |
993 | LABEL_GLOBAL_ENTRY, /* alternate entry point, exported */ | |
994 | LABEL_WEAK_ENTRY /* alternate entry point, exported as weak symbol */ | |
995 | }; | |
996 | ||
997 | #if defined ENABLE_RTL_FLAG_CHECKING && (GCC_VERSION > 2007) | |
998 | ||
999 | /* Retrieve the kind of LABEL. */ | |
1000 | #define LABEL_KIND(LABEL) __extension__ \ | |
dd9b9fc5 | 1001 | ({ __typeof (LABEL) const _label = (LABEL); \ |
a7ae1e59 | 1002 | if (GET_CODE (_label) != CODE_LABEL) \ |
1003 | rtl_check_failed_flag ("LABEL_KIND", _label, __FILE__, __LINE__, \ | |
1004 | __FUNCTION__); \ | |
1005 | (enum label_kind) ((_label->jump << 1) | _label->call); }) | |
1006 | ||
1007 | /* Set the kind of LABEL. */ | |
1008 | #define SET_LABEL_KIND(LABEL, KIND) do { \ | |
dd9b9fc5 | 1009 | __typeof (LABEL) const _label = (LABEL); \ |
0c16c31b | 1010 | const unsigned int _kind = (KIND); \ |
a7ae1e59 | 1011 | if (GET_CODE (_label) != CODE_LABEL) \ |
1012 | rtl_check_failed_flag ("SET_LABEL_KIND", _label, __FILE__, __LINE__, \ | |
1013 | __FUNCTION__); \ | |
1014 | _label->jump = ((_kind >> 1) & 1); \ | |
1015 | _label->call = (_kind & 1); \ | |
1016 | } while (0) | |
1017 | ||
1018 | #else | |
1019 | ||
1020 | /* Retrieve the kind of LABEL. */ | |
1021 | #define LABEL_KIND(LABEL) \ | |
1022 | ((enum label_kind) (((LABEL)->jump << 1) | (LABEL)->call)) | |
1023 | ||
1024 | /* Set the kind of LABEL. */ | |
1025 | #define SET_LABEL_KIND(LABEL, KIND) do { \ | |
0c16c31b | 1026 | rtx const _label = (LABEL); \ |
1027 | const unsigned int _kind = (KIND); \ | |
a7ae1e59 | 1028 | _label->jump = ((_kind >> 1) & 1); \ |
1029 | _label->call = (_kind & 1); \ | |
1030 | } while (0) | |
1031 | ||
1032 | #endif /* rtl flag checking */ | |
1033 | ||
1034 | #define LABEL_ALT_ENTRY_P(LABEL) (LABEL_KIND (LABEL) != LABEL_NORMAL) | |
bfee5366 | 1035 | |
759bebca | 1036 | /* In jump.c, each JUMP_INSN can point to a label that it can jump to, |
1037 | so that if the JUMP_INSN is deleted, the label's LABEL_NUSES can | |
1038 | be decremented and possibly the label can be deleted. */ | |
3072d30e | 1039 | #define JUMP_LABEL(INSN) XCEXP (INSN, 8, JUMP_INSN) |
759bebca | 1040 | |
3072d30e | 1041 | /* Once basic blocks are found, each CODE_LABEL starts a chain that |
1042 | goes through all the LABEL_REFs that jump to that label. The chain | |
1043 | eventually winds up at the CODE_LABEL: it is circular. */ | |
3a55c112 | 1044 | #define LABEL_REFS(LABEL) XCEXP (LABEL, 4, CODE_LABEL) |
759bebca | 1045 | \f |
3072d30e | 1046 | /* For a REG rtx, REGNO extracts the register number. REGNO can only |
1047 | be used on RHS. Use SET_REGNO to change the value. */ | |
1048 | #define REGNO(RTX) (rhs_regno(RTX)) | |
1049 | #define SET_REGNO(RTX,N) (df_ref_change_reg_with_loc (REGNO(RTX), N, RTX), XCUINT (RTX, 0, REG) = N) | |
7f1819d3 | 1050 | #define SET_REGNO_RAW(RTX,N) (XCUINT (RTX, 0, REG) = N) |
3072d30e | 1051 | |
1052 | /* ORIGINAL_REGNO holds the number the register originally had; for a | |
1053 | pseudo register turned into a hard reg this will hold the old pseudo | |
1054 | register number. */ | |
017c31d6 | 1055 | #define ORIGINAL_REGNO(RTX) X0UINT (RTX, 1) |
759bebca | 1056 | |
3072d30e | 1057 | /* Force the REGNO macro to only be used on the lhs. */ |
1058 | static inline unsigned int | |
dd9b9fc5 | 1059 | rhs_regno (const_rtx x) |
3072d30e | 1060 | { |
1061 | return XCUINT (x, 0, REG); | |
1062 | } | |
1063 | ||
1064 | ||
b566e2e5 | 1065 | /* 1 if RTX is a reg or parallel that is the current function's return |
1066 | value. */ | |
3c6858c6 | 1067 | #define REG_FUNCTION_VALUE_P(RTX) \ |
4ee9c684 | 1068 | (RTL_FLAG_CHECK2("REG_FUNCTION_VALUE_P", (RTX), REG, PARALLEL)->return_val) |
759bebca | 1069 | |
3c6858c6 | 1070 | /* 1 if RTX is a reg that corresponds to a variable declared by the user. */ |
1071 | #define REG_USERVAR_P(RTX) \ | |
1072 | (RTL_FLAG_CHECK1("REG_USERVAR_P", (RTX), REG)->volatil) | |
759bebca | 1073 | |
3c6858c6 | 1074 | /* 1 if RTX is a reg that holds a pointer value. */ |
1075 | #define REG_POINTER(RTX) \ | |
1076 | (RTL_FLAG_CHECK1("REG_POINTER", (RTX), REG)->frame_related) | |
e61a0a7f | 1077 | |
8d350e69 | 1078 | /* 1 if RTX is a mem that holds a pointer value. */ |
1079 | #define MEM_POINTER(RTX) \ | |
1080 | (RTL_FLAG_CHECK1("MEM_POINTER", (RTX), MEM)->frame_related) | |
1081 | ||
baaa5be9 | 1082 | /* 1 if the given register REG corresponds to a hard register. */ |
1083 | #define HARD_REGISTER_P(REG) (HARD_REGISTER_NUM_P (REGNO (REG))) | |
1084 | ||
1085 | /* 1 if the given register number REG_NO corresponds to a hard register. */ | |
017c31d6 | 1086 | #define HARD_REGISTER_NUM_P(REG_NO) ((REG_NO) < FIRST_PSEUDO_REGISTER) |
baaa5be9 | 1087 | |
759bebca | 1088 | /* For a CONST_INT rtx, INTVAL extracts the integer. */ |
005d995b | 1089 | #define INTVAL(RTX) XCWINT(RTX, 0, CONST_INT) |
02fd0f2d | 1090 | #define UINTVAL(RTX) ((unsigned HOST_WIDE_INT) INTVAL (RTX)) |
759bebca | 1091 | |
0f221fb7 | 1092 | /* For a CONST_DOUBLE: |
0b2730a7 | 1093 | For a VOIDmode, there are two integers CONST_DOUBLE_LOW is the |
3393215f | 1094 | low-order word and ..._HIGH the high-order. |
1a97be37 | 1095 | For a float, there is a REAL_VALUE_TYPE structure, and |
3393215f | 1096 | CONST_DOUBLE_REAL_VALUE(r) is a pointer to it. */ |
e8aaae4e | 1097 | #define CONST_DOUBLE_LOW(r) XCMWINT (r, 0, CONST_DOUBLE, VOIDmode) |
1098 | #define CONST_DOUBLE_HIGH(r) XCMWINT (r, 1, CONST_DOUBLE, VOIDmode) | |
1099 | #define CONST_DOUBLE_REAL_VALUE(r) \ | |
1100 | ((const struct real_value *) XCNMPRV (r, CONST_DOUBLE, VOIDmode)) | |
0f221fb7 | 1101 | |
e397ad8e | 1102 | #define CONST_FIXED_VALUE(r) \ |
1103 | ((const struct fixed_value *) XCNMPFV (r, CONST_FIXED, VOIDmode)) | |
1104 | #define CONST_FIXED_VALUE_HIGH(r) \ | |
1105 | ((HOST_WIDE_INT) (CONST_FIXED_VALUE(r)->data.high)) | |
1106 | #define CONST_FIXED_VALUE_LOW(r) \ | |
1107 | ((HOST_WIDE_INT) (CONST_FIXED_VALUE(r)->data.low)) | |
1108 | ||
886cfd4f | 1109 | /* For a CONST_VECTOR, return element #n. */ |
1110 | #define CONST_VECTOR_ELT(RTX, N) XCVECEXP (RTX, 0, N, CONST_VECTOR) | |
1111 | ||
1112 | /* For a CONST_VECTOR, return the number of elements in a vector. */ | |
1113 | #define CONST_VECTOR_NUNITS(RTX) XCVECLEN (RTX, 0, CONST_VECTOR) | |
1114 | ||
759bebca | 1115 | /* For a SUBREG rtx, SUBREG_REG extracts the value we want a subreg of. |
701e46d0 | 1116 | SUBREG_BYTE extracts the byte-number. */ |
759bebca | 1117 | |
017c31d6 | 1118 | #define SUBREG_REG(RTX) XCEXP (RTX, 0, SUBREG) |
1119 | #define SUBREG_BYTE(RTX) XCUINT (RTX, 1, SUBREG) | |
701e46d0 | 1120 | |
1121 | /* in rtlanal.c */ | |
26619827 | 1122 | /* Return the right cost to give to an operation |
1123 | to make the cost of the corresponding register-to-register instruction | |
1124 | N times that of a fast register-to-register instruction. */ | |
1125 | #define COSTS_N_INSNS(N) ((N) * 4) | |
1126 | ||
1127 | /* Maximum cost of an rtl expression. This value has the special meaning | |
1128 | not to use an rtx with this cost under any circumstances. */ | |
1129 | #define MAX_COST INT_MAX | |
1130 | ||
c9a03487 | 1131 | /* A structure to hold all available cost information about an rtl |
1132 | expression. */ | |
1133 | struct full_rtx_costs | |
1134 | { | |
1135 | int speed; | |
1136 | int size; | |
1137 | }; | |
1138 | ||
1139 | /* Initialize a full_rtx_costs structure C to the maximum cost. */ | |
1140 | static inline void | |
1141 | init_costs_to_max (struct full_rtx_costs *c) | |
1142 | { | |
1143 | c->speed = MAX_COST; | |
1144 | c->size = MAX_COST; | |
1145 | } | |
1146 | ||
1147 | /* Initialize a full_rtx_costs structure C to zero cost. */ | |
1148 | static inline void | |
1149 | init_costs_to_zero (struct full_rtx_costs *c) | |
1150 | { | |
1151 | c->speed = 0; | |
1152 | c->size = 0; | |
1153 | } | |
1154 | ||
1155 | /* Compare two full_rtx_costs structures A and B, returning true | |
1156 | if A < B when optimizing for speed. */ | |
1157 | static inline bool | |
1158 | costs_lt_p (struct full_rtx_costs *a, struct full_rtx_costs *b, | |
1159 | bool speed) | |
1160 | { | |
1161 | if (speed) | |
1162 | return (a->speed < b->speed | |
1163 | || (a->speed == b->speed && a->size < b->size)); | |
1164 | else | |
1165 | return (a->size < b->size | |
1166 | || (a->size == b->size && a->speed < b->speed)); | |
1167 | } | |
1168 | ||
1169 | /* Increase both members of the full_rtx_costs structure C by the | |
1170 | cost of N insns. */ | |
1171 | static inline void | |
1172 | costs_add_n_insns (struct full_rtx_costs *c, int n) | |
1173 | { | |
1174 | c->speed += COSTS_N_INSNS (n); | |
1175 | c->size += COSTS_N_INSNS (n); | |
1176 | } | |
1177 | ||
a87cf6e5 | 1178 | extern void init_rtlanal (void); |
f529eb25 | 1179 | extern int rtx_cost (rtx, enum rtx_code, bool); |
bd1a81f7 | 1180 | extern int address_cost (rtx, enum machine_mode, addr_space_t, bool); |
c9a03487 | 1181 | extern void get_full_rtx_cost (rtx, enum rtx_code, struct full_rtx_costs *); |
dd9b9fc5 | 1182 | extern unsigned int subreg_lsb (const_rtx); |
f36eb1e9 | 1183 | extern unsigned int subreg_lsb_1 (enum machine_mode, enum machine_mode, |
1184 | unsigned int); | |
3ad4992f | 1185 | extern unsigned int subreg_regno_offset (unsigned int, enum machine_mode, |
1186 | unsigned int, enum machine_mode); | |
1187 | extern bool subreg_offset_representable_p (unsigned int, enum machine_mode, | |
1188 | unsigned int, enum machine_mode); | |
dd9b9fc5 | 1189 | extern unsigned int subreg_regno (const_rtx); |
5992d16a | 1190 | extern int simplify_subreg_regno (unsigned int, enum machine_mode, |
1191 | unsigned int, enum machine_mode); | |
dd9b9fc5 | 1192 | extern unsigned int subreg_nregs (const_rtx); |
dea7b504 | 1193 | extern unsigned int subreg_nregs_with_regno (unsigned int, const_rtx); |
b7bf20db | 1194 | extern unsigned HOST_WIDE_INT nonzero_bits (const_rtx, enum machine_mode); |
1195 | extern unsigned int num_sign_bit_copies (const_rtx, enum machine_mode); | |
e207fd7a | 1196 | extern bool constant_pool_constant_p (rtx); |
b7bf20db | 1197 | extern bool truncated_to_mode (enum machine_mode, const_rtx); |
d16b48d5 | 1198 | extern int low_bitmask_len (enum machine_mode, unsigned HOST_WIDE_INT); |
d263732c | 1199 | |
759bebca | 1200 | |
3c6858c6 | 1201 | /* 1 if RTX is a subreg containing a reg that is already known to be |
1202 | sign- or zero-extended from the mode of the subreg to the mode of | |
3e8eba79 | 1203 | the reg. SUBREG_PROMOTED_UNSIGNED_P gives the signedness of the |
f220c8f0 | 1204 | extension. |
3e8eba79 | 1205 | |
1206 | When used as a LHS, is means that this extension must be done | |
1207 | when assigning to SUBREG_REG. */ | |
1208 | ||
3c6858c6 | 1209 | #define SUBREG_PROMOTED_VAR_P(RTX) \ |
1210 | (RTL_FLAG_CHECK1("SUBREG_PROMOTED", (RTX), SUBREG)->in_struct) | |
1211 | ||
1212 | #define SUBREG_PROMOTED_UNSIGNED_SET(RTX, VAL) \ | |
1213 | do { \ | |
8d780c0b | 1214 | rtx const _rtx = RTL_FLAG_CHECK1("SUBREG_PROMOTED_UNSIGNED_SET", (RTX), SUBREG); \ |
3c6858c6 | 1215 | if ((VAL) < 0) \ |
8d780c0b | 1216 | _rtx->volatil = 1; \ |
3c6858c6 | 1217 | else { \ |
8d780c0b | 1218 | _rtx->volatil = 0; \ |
1219 | _rtx->unchanging = (VAL); \ | |
3c6858c6 | 1220 | } \ |
bfd242e8 | 1221 | } while (0) |
088c4b7b | 1222 | |
1223 | /* Valid for subregs which are SUBREG_PROMOTED_VAR_P(). In that case | |
1224 | this gives the necessary extensions: | |
1225 | 0 - signed | |
1226 | 1 - normal unsigned | |
1227 | -1 - pointer unsigned, which most often can be handled like unsigned | |
1228 | extension, except for generating instructions where we need to | |
1229 | emit special code (ptr_extend insns) on some architectures. */ | |
1230 | ||
e7f75e15 | 1231 | #define SUBREG_PROMOTED_UNSIGNED_P(RTX) \ |
3c6858c6 | 1232 | ((RTL_FLAG_CHECK1("SUBREG_PROMOTED_UNSIGNED_P", (RTX), SUBREG)->volatil) \ |
d8708296 | 1233 | ? -1 : (int) (RTX)->unchanging) |
3e8eba79 | 1234 | |
759bebca | 1235 | /* Access various components of an ASM_OPERANDS rtx. */ |
1236 | ||
017c31d6 | 1237 | #define ASM_OPERANDS_TEMPLATE(RTX) XCSTR (RTX, 0, ASM_OPERANDS) |
1238 | #define ASM_OPERANDS_OUTPUT_CONSTRAINT(RTX) XCSTR (RTX, 1, ASM_OPERANDS) | |
1239 | #define ASM_OPERANDS_OUTPUT_IDX(RTX) XCINT (RTX, 2, ASM_OPERANDS) | |
1240 | #define ASM_OPERANDS_INPUT_VEC(RTX) XCVEC (RTX, 3, ASM_OPERANDS) | |
1241 | #define ASM_OPERANDS_INPUT_CONSTRAINT_VEC(RTX) XCVEC (RTX, 4, ASM_OPERANDS) | |
1242 | #define ASM_OPERANDS_INPUT(RTX, N) XCVECEXP (RTX, 3, N, ASM_OPERANDS) | |
1243 | #define ASM_OPERANDS_INPUT_LENGTH(RTX) XCVECLEN (RTX, 3, ASM_OPERANDS) | |
d91f2122 | 1244 | #define ASM_OPERANDS_INPUT_CONSTRAINT_EXP(RTX, N) \ |
017c31d6 | 1245 | XCVECEXP (RTX, 4, N, ASM_OPERANDS) |
f7c44134 | 1246 | #define ASM_OPERANDS_INPUT_CONSTRAINT(RTX, N) \ |
017c31d6 | 1247 | XSTR (XCVECEXP (RTX, 4, N, ASM_OPERANDS), 0) |
f7c44134 | 1248 | #define ASM_OPERANDS_INPUT_MODE(RTX, N) \ |
017c31d6 | 1249 | GET_MODE (XCVECEXP (RTX, 4, N, ASM_OPERANDS)) |
78f55ca8 | 1250 | #define ASM_OPERANDS_LABEL_VEC(RTX) XCVEC (RTX, 5, ASM_OPERANDS) |
1251 | #define ASM_OPERANDS_LABEL_LENGTH(RTX) XCVECLEN (RTX, 5, ASM_OPERANDS) | |
1252 | #define ASM_OPERANDS_LABEL(RTX, N) XCVECEXP (RTX, 5, N, ASM_OPERANDS) | |
1253 | #define ASM_OPERANDS_SOURCE_LOCATION(RTX) XCUINT (RTX, 6, ASM_OPERANDS) | |
09fb10e8 | 1254 | #define ASM_INPUT_SOURCE_LOCATION(RTX) XCUINT (RTX, 1, ASM_INPUT) |
759bebca | 1255 | |
b04fab2a | 1256 | /* 1 if RTX is a mem that is statically allocated in read-only memory. */ |
1257 | #define MEM_READONLY_P(RTX) \ | |
1258 | (RTL_FLAG_CHECK1("MEM_READONLY_P", (RTX), MEM)->unchanging) | |
1259 | ||
3c6858c6 | 1260 | /* 1 if RTX is a mem and we should keep the alias set for this mem |
5cc193e7 | 1261 | unchanged when we access a component. Set to 1, or example, when we |
1262 | are already in a non-addressable component of an aggregate. */ | |
3c6858c6 | 1263 | #define MEM_KEEP_ALIAS_SET_P(RTX) \ |
1264 | (RTL_FLAG_CHECK1("MEM_KEEP_ALIAS_SET_P", (RTX), MEM)->jump) | |
5cc193e7 | 1265 | |
3c6858c6 | 1266 | /* 1 if RTX is a mem or asm_operand for a volatile reference. */ |
1267 | #define MEM_VOLATILE_P(RTX) \ | |
1268 | (RTL_FLAG_CHECK3("MEM_VOLATILE_P", (RTX), MEM, ASM_OPERANDS, \ | |
1269 | ASM_INPUT)->volatil) | |
759bebca | 1270 | |
3c6858c6 | 1271 | /* 1 if RTX is a mem that refers to an aggregate, either to the |
85ef0c81 | 1272 | aggregate itself or to a field of the aggregate. If zero, RTX may |
9588521d | 1273 | or may not be such a reference. */ |
3c6858c6 | 1274 | #define MEM_IN_STRUCT_P(RTX) \ |
1275 | (RTL_FLAG_CHECK1("MEM_IN_STRUCT_P", (RTX), MEM)->in_struct) | |
759bebca | 1276 | |
c55c3439 | 1277 | /* 1 if RTX is a MEM that refers to a scalar. If zero, RTX may or may |
04641143 | 1278 | not refer to a scalar. */ |
3c6858c6 | 1279 | #define MEM_SCALAR_P(RTX) \ |
c55c3439 | 1280 | (RTL_FLAG_CHECK1("MEM_SCALAR_P", (RTX), MEM)->return_val) |
6a0934dd | 1281 | |
1ed8ccdb | 1282 | /* 1 if RTX is a mem that cannot trap. */ |
1283 | #define MEM_NOTRAP_P(RTX) \ | |
1284 | (RTL_FLAG_CHECK1("MEM_NOTRAP_P", (RTX), MEM)->call) | |
1285 | ||
c6259b83 | 1286 | /* The memory attribute block. We provide access macros for each value |
1287 | in the block and provide defaults if none specified. */ | |
1288 | #define MEM_ATTRS(RTX) X0MEMATTR (RTX, 1) | |
1289 | ||
ca74b940 | 1290 | /* The register attribute block. We provide access macros for each value |
1291 | in the block and provide defaults if none specified. */ | |
1292 | #define REG_ATTRS(RTX) X0REGATTR (RTX, 2) | |
1293 | ||
b5ba9f3a | 1294 | /* For a MEM rtx, the alias set. If 0, this MEM is not in any alias |
1295 | set, and may alias anything. Otherwise, the MEM can only alias | |
650e773f | 1296 | MEMs in a conflicting alias set. This value is set in a |
b5ba9f3a | 1297 | language-dependent manner in the front-end, and should not be |
650e773f | 1298 | altered in the back-end. These set numbers are tested with |
1299 | alias_sets_conflict_p. */ | |
c6259b83 | 1300 | #define MEM_ALIAS_SET(RTX) (MEM_ATTRS (RTX) == 0 ? 0 : MEM_ATTRS (RTX)->alias) |
1301 | ||
1302 | /* For a MEM rtx, the decl it is known to refer to, if it is known to | |
b10dbbca | 1303 | refer to part of a DECL. It may also be a COMPONENT_REF. */ |
1304 | #define MEM_EXPR(RTX) (MEM_ATTRS (RTX) == 0 ? 0 : MEM_ATTRS (RTX)->expr) | |
c6259b83 | 1305 | |
b10dbbca | 1306 | /* For a MEM rtx, the offset from the start of MEM_EXPR, if known, as a |
c6259b83 | 1307 | RTX that is always a CONST_INT. */ |
1308 | #define MEM_OFFSET(RTX) (MEM_ATTRS (RTX) == 0 ? 0 : MEM_ATTRS (RTX)->offset) | |
1309 | ||
bd1a81f7 | 1310 | /* For a MEM rtx, the address space. */ |
1311 | #define MEM_ADDR_SPACE(RTX) (MEM_ATTRS (RTX) == 0 ? ADDR_SPACE_GENERIC \ | |
1312 | : MEM_ATTRS (RTX)->addrspace) | |
1313 | ||
c6259b83 | 1314 | /* For a MEM rtx, the size in bytes of the MEM, if known, as an RTX that |
1315 | is always a CONST_INT. */ | |
5cc193e7 | 1316 | #define MEM_SIZE(RTX) \ |
1317 | (MEM_ATTRS (RTX) != 0 ? MEM_ATTRS (RTX)->size \ | |
1318 | : GET_MODE (RTX) != BLKmode ? GEN_INT (GET_MODE_SIZE (GET_MODE (RTX))) \ | |
1319 | : 0) | |
c6259b83 | 1320 | |
981336a3 | 1321 | /* For a MEM rtx, the alignment in bits. We can use the alignment of the |
1322 | mode as a default when STRICT_ALIGNMENT, but not if not. */ | |
2a631e19 | 1323 | #define MEM_ALIGN(RTX) \ |
1324 | (MEM_ATTRS (RTX) != 0 ? MEM_ATTRS (RTX)->align \ | |
981336a3 | 1325 | : (STRICT_ALIGNMENT && GET_MODE (RTX) != BLKmode \ |
1326 | ? GET_MODE_ALIGNMENT (GET_MODE (RTX)) : BITS_PER_UNIT)) | |
f7c44134 | 1327 | |
ca74b940 | 1328 | /* For a REG rtx, the decl it is known to refer to, if it is known to |
1329 | refer to part of a DECL. */ | |
1330 | #define REG_EXPR(RTX) (REG_ATTRS (RTX) == 0 ? 0 : REG_ATTRS (RTX)->decl) | |
1331 | ||
eeb0ae23 | 1332 | /* For a REG rtx, the offset from the start of REG_EXPR, if known, as an |
1333 | HOST_WIDE_INT. */ | |
ca74b940 | 1334 | #define REG_OFFSET(RTX) (REG_ATTRS (RTX) == 0 ? 0 : REG_ATTRS (RTX)->offset) |
1335 | ||
f7c44134 | 1336 | /* Copy the attributes that apply to memory locations from RHS to LHS. */ |
5cc193e7 | 1337 | #define MEM_COPY_ATTRIBUTES(LHS, RHS) \ |
1338 | (MEM_VOLATILE_P (LHS) = MEM_VOLATILE_P (RHS), \ | |
1339 | MEM_IN_STRUCT_P (LHS) = MEM_IN_STRUCT_P (RHS), \ | |
1340 | MEM_SCALAR_P (LHS) = MEM_SCALAR_P (RHS), \ | |
1ed8ccdb | 1341 | MEM_NOTRAP_P (LHS) = MEM_NOTRAP_P (RHS), \ |
b04fab2a | 1342 | MEM_READONLY_P (LHS) = MEM_READONLY_P (RHS), \ |
5cc193e7 | 1343 | MEM_KEEP_ALIAS_SET_P (LHS) = MEM_KEEP_ALIAS_SET_P (RHS), \ |
c23c6f48 | 1344 | MEM_POINTER (LHS) = MEM_POINTER (RHS), \ |
c6259b83 | 1345 | MEM_ATTRS (LHS) = MEM_ATTRS (RHS)) |
b5ba9f3a | 1346 | |
3c6858c6 | 1347 | /* 1 if RTX is a label_ref for a nonlocal label. */ |
19d2fe05 | 1348 | /* Likewise in an expr_list for a REG_LABEL_OPERAND or |
1349 | REG_LABEL_TARGET note. */ | |
3c6858c6 | 1350 | #define LABEL_REF_NONLOCAL_P(RTX) \ |
590c3166 | 1351 | (RTL_FLAG_CHECK1("LABEL_REF_NONLOCAL_P", (RTX), LABEL_REF)->volatil) |
9a293e97 | 1352 | |
3c6858c6 | 1353 | /* 1 if RTX is a code_label that should always be considered to be needed. */ |
1354 | #define LABEL_PRESERVE_P(RTX) \ | |
1355 | (RTL_FLAG_CHECK2("LABEL_PRESERVE_P", (RTX), CODE_LABEL, NOTE)->in_struct) | |
759bebca | 1356 | |
3c6858c6 | 1357 | /* During sched, 1 if RTX is an insn that must be scheduled together |
f9e15121 | 1358 | with the preceding insn. */ |
3c6858c6 | 1359 | #define SCHED_GROUP_P(RTX) \ |
9845d120 | 1360 | (RTL_FLAG_CHECK4("SCHED_GROUP_P", (RTX), DEBUG_INSN, INSN, \ |
1361 | JUMP_INSN, CALL_INSN \ | |
1362 | )->in_struct) | |
759bebca | 1363 | |
1364 | /* For a SET rtx, SET_DEST is the place that is set | |
1365 | and SET_SRC is the value it is set to. */ | |
005d995b | 1366 | #define SET_DEST(RTX) XC2EXP(RTX, 0, SET, CLOBBER) |
1367 | #define SET_SRC(RTX) XCEXP(RTX, 1, SET) | |
3c6858c6 | 1368 | #define SET_IS_RETURN_P(RTX) \ |
1369 | (RTL_FLAG_CHECK1("SET_IS_RETURN_P", (RTX), SET)->jump) | |
759bebca | 1370 | |
1371 | /* For a TRAP_IF rtx, TRAP_CONDITION is an expression. */ | |
017c31d6 | 1372 | #define TRAP_CONDITION(RTX) XCEXP (RTX, 0, TRAP_IF) |
1373 | #define TRAP_CODE(RTX) XCEXP (RTX, 1, TRAP_IF) | |
759bebca | 1374 | |
406034fa | 1375 | /* For a COND_EXEC rtx, COND_EXEC_TEST is the condition to base |
1376 | conditionally executing the code on, COND_EXEC_CODE is the code | |
1377 | to execute if the condition is true. */ | |
017c31d6 | 1378 | #define COND_EXEC_TEST(RTX) XCEXP (RTX, 0, COND_EXEC) |
1379 | #define COND_EXEC_CODE(RTX) XCEXP (RTX, 1, COND_EXEC) | |
406034fa | 1380 | |
658782a5 | 1381 | /* 1 if RTX is a symbol_ref that addresses this function's rtl |
1382 | constants pool. */ | |
3c6858c6 | 1383 | #define CONSTANT_POOL_ADDRESS_P(RTX) \ |
1384 | (RTL_FLAG_CHECK1("CONSTANT_POOL_ADDRESS_P", (RTX), SYMBOL_REF)->unchanging) | |
759bebca | 1385 | |
658782a5 | 1386 | /* 1 if RTX is a symbol_ref that addresses a value in the file's |
1387 | tree constant pool. This information is private to varasm.c. */ | |
1388 | #define TREE_CONSTANT_POOL_ADDRESS_P(RTX) \ | |
1389 | (RTL_FLAG_CHECK1("TREE_CONSTANT_POOL_ADDRESS_P", \ | |
1390 | (RTX), SYMBOL_REF)->frame_related) | |
abf74c5b | 1391 | |
3c6858c6 | 1392 | /* Used if RTX is a symbol_ref, for machine-specific purposes. */ |
1393 | #define SYMBOL_REF_FLAG(RTX) \ | |
1394 | (RTL_FLAG_CHECK1("SYMBOL_REF_FLAG", (RTX), SYMBOL_REF)->volatil) | |
759bebca | 1395 | |
3c6858c6 | 1396 | /* 1 if RTX is a symbol_ref that has been the library function in |
1397 | emit_library_call. */ | |
1398 | #define SYMBOL_REF_USED(RTX) \ | |
1399 | (RTL_FLAG_CHECK1("SYMBOL_REF_USED", (RTX), SYMBOL_REF)->used) | |
759bebca | 1400 | |
3c6858c6 | 1401 | /* 1 if RTX is a symbol_ref for a weak symbol. */ |
1402 | #define SYMBOL_REF_WEAK(RTX) \ | |
4ee9c684 | 1403 | (RTL_FLAG_CHECK1("SYMBOL_REF_WEAK", (RTX), SYMBOL_REF)->return_val) |
67f79732 | 1404 | |
7c266bb1 | 1405 | /* A pointer attached to the SYMBOL_REF; either SYMBOL_REF_DECL or |
1406 | SYMBOL_REF_CONSTANT. */ | |
b864739b | 1407 | #define SYMBOL_REF_DATA(RTX) X0ANY ((RTX), 2) |
1408 | ||
1409 | /* Set RTX's SYMBOL_REF_DECL to DECL. RTX must not be a constant | |
1410 | pool symbol. */ | |
1411 | #define SET_SYMBOL_REF_DECL(RTX, DECL) \ | |
1412 | (gcc_assert (!CONSTANT_POOL_ADDRESS_P (RTX)), X0TREE ((RTX), 2) = (DECL)) | |
7c266bb1 | 1413 | |
b2fd8d52 | 1414 | /* The tree (decl or constant) associated with the symbol, or null. */ |
7c266bb1 | 1415 | #define SYMBOL_REF_DECL(RTX) \ |
1416 | (CONSTANT_POOL_ADDRESS_P (RTX) ? NULL : X0TREE ((RTX), 2)) | |
1417 | ||
b864739b | 1418 | /* Set RTX's SYMBOL_REF_CONSTANT to C. RTX must be a constant pool symbol. */ |
1419 | #define SET_SYMBOL_REF_CONSTANT(RTX, C) \ | |
1420 | (gcc_assert (CONSTANT_POOL_ADDRESS_P (RTX)), X0CONSTANT ((RTX), 2) = (C)) | |
1421 | ||
7c266bb1 | 1422 | /* The rtx constant pool entry for a symbol, or null. */ |
1423 | #define SYMBOL_REF_CONSTANT(RTX) \ | |
1424 | (CONSTANT_POOL_ADDRESS_P (RTX) ? X0CONSTANT ((RTX), 2) : NULL) | |
001be062 | 1425 | |
1426 | /* A set of flags on a symbol_ref that are, in some respects, redundant with | |
1427 | information derivable from the tree decl associated with this symbol. | |
1428 | Except that we build a *lot* of SYMBOL_REFs that aren't associated with a | |
1429 | decl. In some cases this is a bug. But beyond that, it's nice to cache | |
1430 | this information to avoid recomputing it. Finally, this allows space for | |
1431 | the target to store more than one bit of information, as with | |
1432 | SYMBOL_REF_FLAG. */ | |
1433 | #define SYMBOL_REF_FLAGS(RTX) X0INT ((RTX), 1) | |
1434 | ||
1435 | /* These flags are common enough to be defined for all targets. They | |
1436 | are computed by the default version of targetm.encode_section_info. */ | |
1437 | ||
1438 | /* Set if this symbol is a function. */ | |
1439 | #define SYMBOL_FLAG_FUNCTION (1 << 0) | |
1440 | #define SYMBOL_REF_FUNCTION_P(RTX) \ | |
1441 | ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_FUNCTION) != 0) | |
1442 | /* Set if targetm.binds_local_p is true. */ | |
1443 | #define SYMBOL_FLAG_LOCAL (1 << 1) | |
1444 | #define SYMBOL_REF_LOCAL_P(RTX) \ | |
1445 | ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_LOCAL) != 0) | |
1446 | /* Set if targetm.in_small_data_p is true. */ | |
1447 | #define SYMBOL_FLAG_SMALL (1 << 2) | |
1448 | #define SYMBOL_REF_SMALL_P(RTX) \ | |
1449 | ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_SMALL) != 0) | |
1450 | /* The three-bit field at [5:3] is true for TLS variables; use | |
1451 | SYMBOL_REF_TLS_MODEL to extract the field as an enum tls_model. */ | |
1452 | #define SYMBOL_FLAG_TLS_SHIFT 3 | |
1453 | #define SYMBOL_REF_TLS_MODEL(RTX) \ | |
9763286f | 1454 | ((enum tls_model) ((SYMBOL_REF_FLAGS (RTX) >> SYMBOL_FLAG_TLS_SHIFT) & 7)) |
001be062 | 1455 | /* Set if this symbol is not defined in this translation unit. */ |
1456 | #define SYMBOL_FLAG_EXTERNAL (1 << 6) | |
1457 | #define SYMBOL_REF_EXTERNAL_P(RTX) \ | |
1458 | ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_EXTERNAL) != 0) | |
f2d0e9f1 | 1459 | /* Set if this symbol has a block_symbol structure associated with it. */ |
6617cbc1 | 1460 | #define SYMBOL_FLAG_HAS_BLOCK_INFO (1 << 7) |
1461 | #define SYMBOL_REF_HAS_BLOCK_INFO_P(RTX) \ | |
1462 | ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_HAS_BLOCK_INFO) != 0) | |
f2d0e9f1 | 1463 | /* Set if this symbol is a section anchor. SYMBOL_REF_ANCHOR_P implies |
6617cbc1 | 1464 | SYMBOL_REF_HAS_BLOCK_INFO_P. */ |
f2d0e9f1 | 1465 | #define SYMBOL_FLAG_ANCHOR (1 << 8) |
1466 | #define SYMBOL_REF_ANCHOR_P(RTX) \ | |
1467 | ((SYMBOL_REF_FLAGS (RTX) & SYMBOL_FLAG_ANCHOR) != 0) | |
001be062 | 1468 | |
1469 | /* Subsequent bits are available for the target to use. */ | |
f2d0e9f1 | 1470 | #define SYMBOL_FLAG_MACH_DEP_SHIFT 9 |
5c5d0ae9 | 1471 | #define SYMBOL_FLAG_MACH_DEP (1 << SYMBOL_FLAG_MACH_DEP_SHIFT) |
001be062 | 1472 | |
6617cbc1 | 1473 | /* If SYMBOL_REF_HAS_BLOCK_INFO_P (RTX), this is the object_block |
1474 | structure to which the symbol belongs, or NULL if it has not been | |
1475 | assigned a block. */ | |
f2d0e9f1 | 1476 | #define SYMBOL_REF_BLOCK(RTX) (BLOCK_SYMBOL_CHECK (RTX)->block) |
1477 | ||
6617cbc1 | 1478 | /* If SYMBOL_REF_HAS_BLOCK_INFO_P (RTX), this is the offset of RTX from |
1479 | the first object in SYMBOL_REF_BLOCK (RTX). The value is negative if | |
1480 | RTX has not yet been assigned to a block, or it has not been given an | |
1481 | offset within that block. */ | |
f2d0e9f1 | 1482 | #define SYMBOL_REF_BLOCK_OFFSET(RTX) (BLOCK_SYMBOL_CHECK (RTX)->offset) |
1483 | ||
6540132c | 1484 | /* True if RTX is flagged to be a scheduling barrier. */ |
1485 | #define PREFETCH_SCHEDULE_BARRIER_P(RTX) \ | |
1486 | (RTL_FLAG_CHECK1("PREFETCH_SCHEDULE_BARRIER_P", (RTX), PREFETCH)->volatil) | |
1487 | ||
3072d30e | 1488 | /* Indicate whether the machine has any sort of auto increment addressing. |
1489 | If not, we can avoid checking for REG_INC notes. */ | |
1490 | ||
1491 | #if (defined (HAVE_PRE_INCREMENT) || defined (HAVE_PRE_DECREMENT) \ | |
1492 | || defined (HAVE_POST_INCREMENT) || defined (HAVE_POST_DECREMENT) \ | |
1493 | || defined (HAVE_PRE_MODIFY_DISP) || defined (HAVE_PRE_MODIFY_DISP) \ | |
1494 | || defined (HAVE_PRE_MODIFY_REG) || defined (HAVE_POST_MODIFY_REG)) | |
1495 | #define AUTO_INC_DEC | |
1496 | #endif | |
1497 | ||
759bebca | 1498 | /* Define a macro to look for REG_INC notes, |
1499 | but save time on machines where they never exist. */ | |
1500 | ||
3072d30e | 1501 | #ifdef AUTO_INC_DEC |
017c31d6 | 1502 | #define FIND_REG_INC_NOTE(INSN, REG) \ |
1503 | ((REG) != NULL_RTX && REG_P ((REG)) \ | |
1504 | ? find_regno_note ((INSN), REG_INC, REGNO (REG)) \ | |
1505 | : find_reg_note ((INSN), REG_INC, (REG))) | |
759bebca | 1506 | #else |
017c31d6 | 1507 | #define FIND_REG_INC_NOTE(INSN, REG) 0 |
759bebca | 1508 | #endif |
1509 | ||
e4e498cf | 1510 | #ifndef HAVE_PRE_INCREMENT |
1511 | #define HAVE_PRE_INCREMENT 0 | |
1512 | #endif | |
1513 | ||
1514 | #ifndef HAVE_PRE_DECREMENT | |
1515 | #define HAVE_PRE_DECREMENT 0 | |
1516 | #endif | |
1517 | ||
1518 | #ifndef HAVE_POST_INCREMENT | |
1519 | #define HAVE_POST_INCREMENT 0 | |
1520 | #endif | |
1521 | ||
1522 | #ifndef HAVE_POST_DECREMENT | |
1523 | #define HAVE_POST_DECREMENT 0 | |
1524 | #endif | |
1525 | ||
40988080 | 1526 | #ifndef HAVE_POST_MODIFY_DISP |
1527 | #define HAVE_POST_MODIFY_DISP 0 | |
1528 | #endif | |
1529 | ||
1530 | #ifndef HAVE_POST_MODIFY_REG | |
1531 | #define HAVE_POST_MODIFY_REG 0 | |
1532 | #endif | |
1533 | ||
1534 | #ifndef HAVE_PRE_MODIFY_DISP | |
1535 | #define HAVE_PRE_MODIFY_DISP 0 | |
1536 | #endif | |
1537 | ||
1538 | #ifndef HAVE_PRE_MODIFY_REG | |
1539 | #define HAVE_PRE_MODIFY_REG 0 | |
1540 | #endif | |
1541 | ||
c14ad648 | 1542 | |
1543 | /* Some architectures do not have complete pre/post increment/decrement | |
1544 | instruction sets, or only move some modes efficiently. These macros | |
1545 | allow us to tune autoincrement generation. */ | |
1546 | ||
1547 | #ifndef USE_LOAD_POST_INCREMENT | |
1548 | #define USE_LOAD_POST_INCREMENT(MODE) HAVE_POST_INCREMENT | |
1549 | #endif | |
1550 | ||
1551 | #ifndef USE_LOAD_POST_DECREMENT | |
1552 | #define USE_LOAD_POST_DECREMENT(MODE) HAVE_POST_DECREMENT | |
1553 | #endif | |
1554 | ||
1555 | #ifndef USE_LOAD_PRE_INCREMENT | |
1556 | #define USE_LOAD_PRE_INCREMENT(MODE) HAVE_PRE_INCREMENT | |
1557 | #endif | |
1558 | ||
1559 | #ifndef USE_LOAD_PRE_DECREMENT | |
1560 | #define USE_LOAD_PRE_DECREMENT(MODE) HAVE_PRE_DECREMENT | |
1561 | #endif | |
1562 | ||
1563 | #ifndef USE_STORE_POST_INCREMENT | |
1564 | #define USE_STORE_POST_INCREMENT(MODE) HAVE_POST_INCREMENT | |
1565 | #endif | |
1566 | ||
1567 | #ifndef USE_STORE_POST_DECREMENT | |
1568 | #define USE_STORE_POST_DECREMENT(MODE) HAVE_POST_DECREMENT | |
1569 | #endif | |
1570 | ||
1571 | #ifndef USE_STORE_PRE_INCREMENT | |
1572 | #define USE_STORE_PRE_INCREMENT(MODE) HAVE_PRE_INCREMENT | |
1573 | #endif | |
1574 | ||
1575 | #ifndef USE_STORE_PRE_DECREMENT | |
1576 | #define USE_STORE_PRE_DECREMENT(MODE) HAVE_PRE_DECREMENT | |
1577 | #endif | |
759bebca | 1578 | \f |
316bc009 | 1579 | /* Nonzero when we are generating CONCATs. */ |
1580 | extern int generating_concat_p; | |
1581 | ||
723c0ee7 | 1582 | /* Nonzero when we are expanding trees to RTL. */ |
1583 | extern int currently_expanding_to_rtl; | |
1584 | ||
759bebca | 1585 | /* Generally useful functions. */ |
1586 | ||
bc33205e | 1587 | /* In expmed.c */ |
3ad4992f | 1588 | extern int ceil_log2 (unsigned HOST_WIDE_INT); |
1bb04728 | 1589 | |
ebd9163c | 1590 | /* In explow.c */ |
3ad4992f | 1591 | extern HOST_WIDE_INT trunc_int_for_mode (HOST_WIDE_INT, enum machine_mode); |
1e9d55d7 | 1592 | extern rtx plus_constant (rtx, HOST_WIDE_INT); |
1bb04728 | 1593 | |
9588521d | 1594 | /* In rtl.c */ |
674b05f5 | 1595 | extern rtx rtx_alloc_stat (RTX_CODE MEM_STAT_DECL); |
1596 | #define rtx_alloc(c) rtx_alloc_stat (c MEM_STAT_INFO) | |
1597 | ||
3ad4992f | 1598 | extern rtvec rtvec_alloc (int); |
b447ca78 | 1599 | extern rtvec shallow_copy_rtvec (rtvec); |
dd9b9fc5 | 1600 | extern bool shared_const_p (const_rtx); |
3ad4992f | 1601 | extern rtx copy_rtx (rtx); |
86736f9e | 1602 | extern void dump_rtx_statistics (void); |
9588521d | 1603 | |
1604 | /* In emit-rtl.c */ | |
3ad4992f | 1605 | extern rtx copy_rtx_if_shared (rtx); |
9588521d | 1606 | |
1607 | /* In rtl.c */ | |
dd9b9fc5 | 1608 | extern unsigned int rtx_size (const_rtx); |
1609 | extern rtx shallow_copy_rtx_stat (const_rtx MEM_STAT_DECL); | |
674b05f5 | 1610 | #define shallow_copy_rtx(a) shallow_copy_rtx_stat (a MEM_STAT_INFO) |
dd9b9fc5 | 1611 | extern int rtx_equal_p (const_rtx, const_rtx); |
09279218 | 1612 | extern hashval_t iterative_hash_rtx (const_rtx, hashval_t); |
9588521d | 1613 | |
1614 | /* In emit-rtl.c */ | |
3ad4992f | 1615 | extern rtvec gen_rtvec_v (int, rtx *); |
1616 | extern rtx gen_reg_rtx (enum machine_mode); | |
1617 | extern rtx gen_rtx_REG_offset (rtx, enum machine_mode, unsigned int, int); | |
1a6a0f2a | 1618 | extern rtx gen_reg_rtx_offset (rtx, enum machine_mode, int); |
ae12ddda | 1619 | extern rtx gen_reg_rtx_and_attrs (rtx); |
3ad4992f | 1620 | extern rtx gen_label_rtx (void); |
3ad4992f | 1621 | extern rtx gen_lowpart_common (enum machine_mode, rtx); |
9588521d | 1622 | |
1623 | /* In cse.c */ | |
3ad4992f | 1624 | extern rtx gen_lowpart_if_possible (enum machine_mode, rtx); |
9588521d | 1625 | |
1626 | /* In emit-rtl.c */ | |
3ad4992f | 1627 | extern rtx gen_highpart (enum machine_mode, rtx); |
1628 | extern rtx gen_highpart_mode (enum machine_mode, enum machine_mode, rtx); | |
3ad4992f | 1629 | extern rtx operand_subword (rtx, unsigned int, int, enum machine_mode); |
9588521d | 1630 | |
1631 | /* In emit-rtl.c */ | |
3ad4992f | 1632 | extern rtx operand_subword_force (rtx, unsigned int, enum machine_mode); |
b7bf20db | 1633 | extern int subreg_lowpart_p (const_rtx); |
3ad4992f | 1634 | extern unsigned int subreg_lowpart_offset (enum machine_mode, |
1635 | enum machine_mode); | |
1636 | extern unsigned int subreg_highpart_offset (enum machine_mode, | |
1637 | enum machine_mode); | |
80c70e76 | 1638 | extern int byte_lowpart_offset (enum machine_mode, enum machine_mode); |
3ad4992f | 1639 | extern rtx make_safe_from (rtx, rtx); |
98155838 | 1640 | extern rtx convert_memory_address_addr_space (enum machine_mode, rtx, |
1641 | addr_space_t); | |
1642 | #define convert_memory_address(to_mode,x) \ | |
1643 | convert_memory_address_addr_space ((to_mode), (x), ADDR_SPACE_GENERIC) | |
3ad4992f | 1644 | extern const char *get_insn_name (int); |
3ad4992f | 1645 | extern rtx get_last_insn_anywhere (void); |
1646 | extern rtx get_first_nonnote_insn (void); | |
1647 | extern rtx get_last_nonnote_insn (void); | |
1648 | extern void start_sequence (void); | |
1649 | extern void push_to_sequence (rtx); | |
28bf151d | 1650 | extern void push_to_sequence2 (rtx, rtx); |
3ad4992f | 1651 | extern void end_sequence (void); |
33274180 | 1652 | extern double_int rtx_to_double_int (const_rtx); |
3e052aec | 1653 | extern rtx immed_double_int_const (double_int, enum machine_mode); |
3ad4992f | 1654 | extern rtx immed_double_const (HOST_WIDE_INT, HOST_WIDE_INT, |
1655 | enum machine_mode); | |
791172c5 | 1656 | |
cde5a3a0 | 1657 | /* In loop-iv.c */ |
1658 | ||
1659 | extern rtx lowpart_subreg (enum machine_mode, rtx, enum machine_mode); | |
1660 | ||
791172c5 | 1661 | /* In varasm.c */ |
3ad4992f | 1662 | extern rtx force_const_mem (enum machine_mode, rtx); |
9588521d | 1663 | |
9588521d | 1664 | /* In varasm.c */ |
fdef3332 | 1665 | |
1666 | struct function; | |
3ad4992f | 1667 | extern rtx get_pool_constant (rtx); |
1668 | extern rtx get_pool_constant_mark (rtx, bool *); | |
dd9b9fc5 | 1669 | extern enum machine_mode get_pool_mode (const_rtx); |
3ad4992f | 1670 | extern rtx simplify_subtraction (rtx); |
9588521d | 1671 | |
1672 | /* In function.c */ | |
3ad4992f | 1673 | extern rtx assign_stack_local (enum machine_mode, HOST_WIDE_INT, int); |
943d8723 | 1674 | #define ASLK_REDUCE_ALIGN 1 |
1675 | #define ASLK_RECORD_PAD 2 | |
1676 | extern rtx assign_stack_local_1 (enum machine_mode, HOST_WIDE_INT, int, int); | |
3ad4992f | 1677 | extern rtx assign_stack_temp (enum machine_mode, HOST_WIDE_INT, int); |
1678 | extern rtx assign_stack_temp_for_type (enum machine_mode, | |
1679 | HOST_WIDE_INT, int, tree); | |
1680 | extern rtx assign_temp (tree, int, int, int); | |
0a3b3d88 | 1681 | |
9588521d | 1682 | /* In emit-rtl.c */ |
3ad4992f | 1683 | extern rtx emit_insn_before (rtx, rtx); |
3072d30e | 1684 | extern rtx emit_insn_before_noloc (rtx, rtx, struct basic_block_def *); |
3ad4992f | 1685 | extern rtx emit_insn_before_setloc (rtx, rtx, int); |
1686 | extern rtx emit_jump_insn_before (rtx, rtx); | |
0891f67c | 1687 | extern rtx emit_jump_insn_before_noloc (rtx, rtx); |
3ad4992f | 1688 | extern rtx emit_jump_insn_before_setloc (rtx, rtx, int); |
1689 | extern rtx emit_call_insn_before (rtx, rtx); | |
0891f67c | 1690 | extern rtx emit_call_insn_before_noloc (rtx, rtx); |
3ad4992f | 1691 | extern rtx emit_call_insn_before_setloc (rtx, rtx, int); |
9845d120 | 1692 | extern rtx emit_debug_insn_before (rtx, rtx); |
1693 | extern rtx emit_debug_insn_before_noloc (rtx, rtx); | |
1694 | extern rtx emit_debug_insn_before_setloc (rtx, rtx, int); | |
3ad4992f | 1695 | extern rtx emit_barrier_before (rtx); |
1696 | extern rtx emit_label_before (rtx, rtx); | |
ad4583d9 | 1697 | extern rtx emit_note_before (enum insn_note, rtx); |
3ad4992f | 1698 | extern rtx emit_insn_after (rtx, rtx); |
3072d30e | 1699 | extern rtx emit_insn_after_noloc (rtx, rtx, struct basic_block_def *); |
3ad4992f | 1700 | extern rtx emit_insn_after_setloc (rtx, rtx, int); |
1701 | extern rtx emit_jump_insn_after (rtx, rtx); | |
0891f67c | 1702 | extern rtx emit_jump_insn_after_noloc (rtx, rtx); |
3ad4992f | 1703 | extern rtx emit_jump_insn_after_setloc (rtx, rtx, int); |
1704 | extern rtx emit_call_insn_after (rtx, rtx); | |
0891f67c | 1705 | extern rtx emit_call_insn_after_noloc (rtx, rtx); |
3ad4992f | 1706 | extern rtx emit_call_insn_after_setloc (rtx, rtx, int); |
9845d120 | 1707 | extern rtx emit_debug_insn_after (rtx, rtx); |
1708 | extern rtx emit_debug_insn_after_noloc (rtx, rtx); | |
1709 | extern rtx emit_debug_insn_after_setloc (rtx, rtx, int); | |
3ad4992f | 1710 | extern rtx emit_barrier_after (rtx); |
1711 | extern rtx emit_label_after (rtx, rtx); | |
ad4583d9 | 1712 | extern rtx emit_note_after (enum insn_note, rtx); |
3ad4992f | 1713 | extern rtx emit_insn (rtx); |
9845d120 | 1714 | extern rtx emit_debug_insn (rtx); |
3ad4992f | 1715 | extern rtx emit_jump_insn (rtx); |
1716 | extern rtx emit_call_insn (rtx); | |
1717 | extern rtx emit_label (rtx); | |
1718 | extern rtx emit_barrier (void); | |
ad4583d9 | 1719 | extern rtx emit_note (enum insn_note); |
3ad4992f | 1720 | extern rtx emit_note_copy (rtx); |
18b42941 | 1721 | extern rtx gen_clobber (rtx); |
1722 | extern rtx emit_clobber (rtx); | |
1723 | extern rtx gen_use (rtx); | |
1724 | extern rtx emit_use (rtx); | |
3ad4992f | 1725 | extern rtx make_insn_raw (rtx); |
9845d120 | 1726 | extern rtx make_debug_insn_raw (rtx); |
89140b26 | 1727 | extern rtx make_jump_insn_raw (rtx); |
3ad4992f | 1728 | extern void add_function_usage_to (rtx, rtx); |
1729 | extern rtx last_call_insn (void); | |
1730 | extern rtx previous_insn (rtx); | |
1731 | extern rtx next_insn (rtx); | |
1732 | extern rtx prev_nonnote_insn (rtx); | |
bcc66782 | 1733 | extern rtx prev_nonnote_insn_bb (rtx); |
3ad4992f | 1734 | extern rtx next_nonnote_insn (rtx); |
c4d13c5c | 1735 | extern rtx next_nonnote_insn_bb (rtx); |
9845d120 | 1736 | extern rtx prev_nondebug_insn (rtx); |
1737 | extern rtx next_nondebug_insn (rtx); | |
5b8537a8 | 1738 | extern rtx prev_nonnote_nondebug_insn (rtx); |
1739 | extern rtx next_nonnote_nondebug_insn (rtx); | |
3ad4992f | 1740 | extern rtx prev_real_insn (rtx); |
1741 | extern rtx next_real_insn (rtx); | |
1742 | extern rtx prev_active_insn (rtx); | |
1743 | extern rtx next_active_insn (rtx); | |
52d07779 | 1744 | extern int active_insn_p (const_rtx); |
3ad4992f | 1745 | extern rtx prev_label (rtx); |
1746 | extern rtx next_label (rtx); | |
67c5e2a9 | 1747 | extern rtx skip_consecutive_labels (rtx); |
3ad4992f | 1748 | extern rtx next_cc0_user (rtx); |
1749 | extern rtx prev_cc0_setter (rtx); | |
9588521d | 1750 | |
84c71503 | 1751 | /* In cfglayout.c */ |
dd9b9fc5 | 1752 | extern int insn_line (const_rtx); |
1753 | extern const char * insn_file (const_rtx); | |
14ffb23e | 1754 | extern location_t locator_location (int); |
c6a8cd53 | 1755 | extern int locator_line (int); |
1756 | extern const char * locator_file (int); | |
fc6ce27c | 1757 | extern bool locator_eq (int, int); |
13751393 | 1758 | extern int prologue_locator, epilogue_locator; |
84c71503 | 1759 | |
9588521d | 1760 | /* In jump.c */ |
3ad4992f | 1761 | extern enum rtx_code reverse_condition (enum rtx_code); |
1762 | extern enum rtx_code reverse_condition_maybe_unordered (enum rtx_code); | |
1763 | extern enum rtx_code swap_condition (enum rtx_code); | |
1764 | extern enum rtx_code unsigned_condition (enum rtx_code); | |
1765 | extern enum rtx_code signed_condition (enum rtx_code); | |
1766 | extern void mark_jump_label (rtx, rtx, int); | |
2a1990e9 | 1767 | extern unsigned int cleanup_barriers (void); |
9588521d | 1768 | |
9588521d | 1769 | /* In jump.c */ |
3ad4992f | 1770 | extern rtx delete_related_insns (rtx); |
9588521d | 1771 | |
1772 | /* In recog.c */ | |
3ad4992f | 1773 | extern rtx *find_constant_term_loc (rtx *); |
9588521d | 1774 | |
1775 | /* In emit-rtl.c */ | |
3ad4992f | 1776 | extern rtx try_split (rtx, rtx, int); |
3cd757b1 | 1777 | extern int split_branch_probability; |
9588521d | 1778 | |
1779 | /* In unknown file */ | |
3ad4992f | 1780 | extern rtx split_insns (rtx, rtx); |
9588521d | 1781 | |
1782 | /* In simplify-rtx.c */ | |
3b723a04 | 1783 | extern rtx simplify_const_unary_operation (enum rtx_code, enum machine_mode, |
1784 | rtx, enum machine_mode); | |
3ad4992f | 1785 | extern rtx simplify_unary_operation (enum rtx_code, enum machine_mode, rtx, |
1786 | enum machine_mode); | |
3b723a04 | 1787 | extern rtx simplify_const_binary_operation (enum rtx_code, enum machine_mode, |
1788 | rtx, rtx); | |
3ad4992f | 1789 | extern rtx simplify_binary_operation (enum rtx_code, enum machine_mode, rtx, |
1790 | rtx); | |
1791 | extern rtx simplify_ternary_operation (enum rtx_code, enum machine_mode, | |
1792 | enum machine_mode, rtx, rtx, rtx); | |
089b4730 | 1793 | extern rtx simplify_const_relational_operation (enum rtx_code, |
1794 | enum machine_mode, rtx, rtx); | |
3ad4992f | 1795 | extern rtx simplify_relational_operation (enum rtx_code, enum machine_mode, |
089b4730 | 1796 | enum machine_mode, rtx, rtx); |
3ad4992f | 1797 | extern rtx simplify_gen_binary (enum rtx_code, enum machine_mode, rtx, rtx); |
1798 | extern rtx simplify_gen_unary (enum rtx_code, enum machine_mode, rtx, | |
1799 | enum machine_mode); | |
1800 | extern rtx simplify_gen_ternary (enum rtx_code, enum machine_mode, | |
1801 | enum machine_mode, rtx, rtx, rtx); | |
1802 | extern rtx simplify_gen_relational (enum rtx_code, enum machine_mode, | |
1803 | enum machine_mode, rtx, rtx); | |
1804 | extern rtx simplify_subreg (enum machine_mode, rtx, enum machine_mode, | |
1805 | unsigned int); | |
1806 | extern rtx simplify_gen_subreg (enum machine_mode, rtx, enum machine_mode, | |
1807 | unsigned int); | |
bf4652ac | 1808 | extern rtx simplify_replace_fn_rtx (rtx, const_rtx, |
35af0188 | 1809 | rtx (*fn) (rtx, const_rtx, void *), void *); |
dd9b9fc5 | 1810 | extern rtx simplify_replace_rtx (rtx, const_rtx, rtx); |
9f627b1a | 1811 | extern rtx simplify_rtx (const_rtx); |
3ad4992f | 1812 | extern rtx avoid_constant_pool_reference (rtx); |
9845d120 | 1813 | extern rtx delegitimize_mem_from_attrs (rtx); |
dd9b9fc5 | 1814 | extern bool mode_signbit_p (enum machine_mode, const_rtx); |
9588521d | 1815 | |
ac502adf | 1816 | /* In reginfo.c */ |
b805295e | 1817 | extern enum machine_mode choose_hard_reg_mode (unsigned int, unsigned int, |
1818 | bool); | |
9588521d | 1819 | |
1820 | /* In emit-rtl.c */ | |
3ad4992f | 1821 | extern rtx set_unique_reg_note (rtx, enum reg_note, rtx); |
3072d30e | 1822 | extern void set_insn_deleted (rtx); |
ea0cb7ae | 1823 | |
0dbd1c74 | 1824 | /* Functions in rtlanal.c */ |
1825 | ||
6531eca9 | 1826 | /* Single set is implemented as macro for performance reasons. */ |
1827 | #define single_set(I) (INSN_P (I) \ | |
1828 | ? (GET_CODE (PATTERN (I)) == SET \ | |
1829 | ? PATTERN (I) : single_set_1 (I)) \ | |
1830 | : NULL_RTX) | |
a0bb0d20 | 1831 | #define single_set_1(I) single_set_2 (I, PATTERN (I)) |
6531eca9 | 1832 | |
f2756aab | 1833 | /* Structure used for passing data to REPLACE_LABEL. */ |
cda612f5 | 1834 | typedef struct replace_label_data |
f2756aab | 1835 | { |
1836 | rtx r1; | |
1837 | rtx r2; | |
cda612f5 | 1838 | bool update_label_nuses; |
1839 | } replace_label_data; | |
f2756aab | 1840 | |
dd9b9fc5 | 1841 | extern int rtx_addr_can_trap_p (const_rtx); |
1842 | extern bool nonzero_address_p (const_rtx); | |
1843 | extern int rtx_unstable_p (const_rtx); | |
52d07779 | 1844 | extern bool rtx_varies_p (const_rtx, bool); |
1845 | extern bool rtx_addr_varies_p (const_rtx, bool); | |
dd9b9fc5 | 1846 | extern HOST_WIDE_INT get_integer_term (const_rtx); |
1847 | extern rtx get_related_value (const_rtx); | |
1848 | extern bool offset_within_block_p (const_rtx, HOST_WIDE_INT); | |
e0ab7256 | 1849 | extern void split_const (rtx, rtx *, rtx *); |
dd9b9fc5 | 1850 | extern int reg_mentioned_p (const_rtx, const_rtx); |
1851 | extern int count_occurrences (const_rtx, const_rtx, int); | |
1852 | extern int reg_referenced_p (const_rtx, const_rtx); | |
1853 | extern int reg_used_between_p (const_rtx, const_rtx, const_rtx); | |
7ecb5bb2 | 1854 | extern int reg_set_between_p (const_rtx, const_rtx, const_rtx); |
3ad4992f | 1855 | extern int commutative_operand_precedence (rtx); |
1f3b83af | 1856 | extern bool swap_commutative_operands_p (rtx, rtx); |
5493cb9a | 1857 | extern int modified_between_p (const_rtx, const_rtx, const_rtx); |
dd9b9fc5 | 1858 | extern int no_labels_between_p (const_rtx, const_rtx); |
5493cb9a | 1859 | extern int modified_in_p (const_rtx, const_rtx); |
7ecb5bb2 | 1860 | extern int reg_set_p (const_rtx, const_rtx); |
dd9b9fc5 | 1861 | extern rtx single_set_2 (const_rtx, const_rtx); |
1862 | extern int multiple_sets (const_rtx); | |
1863 | extern int set_noop_p (const_rtx); | |
b7bf20db | 1864 | extern int noop_move_p (const_rtx); |
3ad4992f | 1865 | extern rtx find_last_value (rtx, rtx *, rtx, int); |
dd9b9fc5 | 1866 | extern int refers_to_regno_p (unsigned int, unsigned int, const_rtx, rtx *); |
1867 | extern int reg_overlap_mentioned_p (const_rtx, const_rtx); | |
81a410b1 | 1868 | extern const_rtx set_of (const_rtx, const_rtx); |
1869 | extern void note_stores (const_rtx, void (*) (rtx, const_rtx, void *), void *); | |
3ad4992f | 1870 | extern void note_uses (rtx *, void (*) (rtx *, void *), void *); |
dd9b9fc5 | 1871 | extern int dead_or_set_p (const_rtx, const_rtx); |
1872 | extern int dead_or_set_regno_p (const_rtx, unsigned int); | |
1873 | extern rtx find_reg_note (const_rtx, enum reg_note, const_rtx); | |
1874 | extern rtx find_regno_note (const_rtx, enum reg_note, unsigned int); | |
1875 | extern rtx find_reg_equal_equiv_note (const_rtx); | |
1876 | extern rtx find_constant_src (const_rtx); | |
1877 | extern int find_reg_fusage (const_rtx, enum rtx_code, const_rtx); | |
1878 | extern int find_regno_fusage (const_rtx, enum rtx_code, unsigned int); | |
5859ee98 | 1879 | extern rtx alloc_reg_note (enum reg_note, rtx, rtx); |
a1ddb869 | 1880 | extern void add_reg_note (rtx, enum reg_note, rtx); |
dd9b9fc5 | 1881 | extern void remove_note (rtx, const_rtx); |
f16feee2 | 1882 | extern void remove_reg_equal_equiv_notes (rtx); |
09669349 | 1883 | extern void remove_reg_equal_equiv_notes_for_regno (unsigned int); |
dd9b9fc5 | 1884 | extern int side_effects_p (const_rtx); |
1885 | extern int volatile_refs_p (const_rtx); | |
1886 | extern int volatile_insn_p (const_rtx); | |
77ad8e5a | 1887 | extern int may_trap_p_1 (const_rtx, unsigned); |
dd9b9fc5 | 1888 | extern int may_trap_p (const_rtx); |
dd9b9fc5 | 1889 | extern int may_trap_or_fault_p (const_rtx); |
e38def9c | 1890 | extern bool can_throw_internal (const_rtx); |
1891 | extern bool can_throw_external (const_rtx); | |
1892 | extern bool insn_could_throw_p (const_rtx); | |
1893 | extern bool insn_nothrow_p (const_rtx); | |
1894 | extern bool can_nonlocal_goto (const_rtx); | |
1895 | extern void copy_reg_eh_region_note_forward (rtx, rtx, rtx); | |
1896 | extern void copy_reg_eh_region_note_backward(rtx, rtx, rtx); | |
dd9b9fc5 | 1897 | extern int inequality_comparisons_p (const_rtx); |
3ad4992f | 1898 | extern rtx replace_rtx (rtx, rtx, rtx); |
3ad4992f | 1899 | extern int replace_label (rtx *, void *); |
1900 | extern int rtx_referenced_p (rtx, rtx); | |
dd9b9fc5 | 1901 | extern bool tablejump_p (const_rtx, rtx *, rtx *); |
1902 | extern int computed_jump_p (const_rtx); | |
e1ab7874 | 1903 | |
3ad4992f | 1904 | typedef int (*rtx_function) (rtx *, void *); |
1905 | extern int for_each_rtx (rtx *, rtx_function, void *); | |
e1ab7874 | 1906 | |
1f864115 | 1907 | /* Callback for for_each_inc_dec, to process the autoinc operation OP |
1908 | within MEM that sets DEST to SRC + SRCOFF, or SRC if SRCOFF is | |
1909 | NULL. The callback is passed the same opaque ARG passed to | |
1910 | for_each_inc_dec. Return zero to continue looking for other | |
1911 | autoinc operations, -1 to skip OP's operands, and any other value | |
1912 | to interrupt the traversal and return that value to the caller of | |
1913 | for_each_inc_dec. */ | |
1914 | typedef int (*for_each_inc_dec_fn) (rtx mem, rtx op, rtx dest, rtx src, | |
1915 | rtx srcoff, void *arg); | |
1916 | extern int for_each_inc_dec (rtx *, for_each_inc_dec_fn, void *arg); | |
1917 | ||
e1ab7874 | 1918 | typedef int (*rtx_equal_p_callback_function) (const_rtx *, const_rtx *, |
1919 | rtx *, rtx *); | |
1920 | extern int rtx_equal_p_cb (const_rtx, const_rtx, | |
1921 | rtx_equal_p_callback_function); | |
1922 | ||
1923 | typedef int (*hash_rtx_callback_function) (const_rtx, enum machine_mode, rtx *, | |
1924 | enum machine_mode *); | |
1925 | extern unsigned hash_rtx_cb (const_rtx, enum machine_mode, int *, int *, | |
1926 | bool, hash_rtx_callback_function); | |
1927 | ||
3ad4992f | 1928 | extern rtx regno_use_in (unsigned int, rtx); |
dd9b9fc5 | 1929 | extern int auto_inc_p (const_rtx); |
1930 | extern int in_expr_list_p (const_rtx, const_rtx); | |
1931 | extern void remove_node_from_expr_list (const_rtx, rtx *); | |
1932 | extern int loc_mentioned_in_p (rtx *, const_rtx); | |
3ad4992f | 1933 | extern rtx find_first_parameter_load (rtx, rtx); |
5493cb9a | 1934 | extern bool keep_with_call_p (const_rtx); |
dd9b9fc5 | 1935 | extern bool label_is_jump_target_p (const_rtx, const_rtx); |
f529eb25 | 1936 | extern int insn_rtx_cost (rtx, bool); |
759bebca | 1937 | |
ea92ba80 | 1938 | /* Given an insn and condition, return a canonical description of |
1939 | the test being made. */ | |
1940 | extern rtx canonicalize_condition (rtx, rtx, int, rtx *, rtx, int, int); | |
1941 | ||
1942 | /* Given a JUMP_INSN, return a canonical description of the test | |
1943 | being made. */ | |
1944 | extern rtx get_condition (rtx, rtx *, int, int); | |
1945 | ||
9680c846 | 1946 | /* Information about a subreg of a hard register. */ |
1947 | struct subreg_info | |
1948 | { | |
1949 | /* Offset of first hard register involved in the subreg. */ | |
1950 | int offset; | |
1951 | /* Number of hard registers involved in the subreg. */ | |
1952 | int nregs; | |
1953 | /* Whether this subreg can be represented as a hard reg with the new | |
1954 | mode. */ | |
1955 | bool representable_p; | |
1956 | }; | |
1957 | ||
1958 | extern void subreg_get_info (unsigned int, enum machine_mode, | |
1959 | unsigned int, enum machine_mode, | |
1960 | struct subreg_info *); | |
1961 | ||
1f3233d1 | 1962 | /* lists.c */ |
1963 | ||
e1ab7874 | 1964 | extern void free_EXPR_LIST_list (rtx *); |
1965 | extern void free_INSN_LIST_list (rtx *); | |
1966 | extern void free_EXPR_LIST_node (rtx); | |
1967 | extern void free_INSN_LIST_node (rtx); | |
1968 | extern rtx alloc_INSN_LIST (rtx, rtx); | |
1969 | extern rtx alloc_EXPR_LIST (int, rtx, rtx); | |
1970 | extern void remove_free_INSN_LIST_elem (rtx, rtx *); | |
1971 | extern rtx remove_list_elem (rtx, rtx *); | |
1972 | extern rtx remove_free_INSN_LIST_node (rtx *); | |
1973 | extern rtx remove_free_EXPR_LIST_node (rtx *); | |
1974 | ||
7cc785dd | 1975 | |
ac502adf | 1976 | /* reginfo.c */ |
7cc785dd | 1977 | |
47dd2e78 | 1978 | /* Initialize may_move_cost and friends for mode M. */ |
1979 | extern void init_move_cost (enum machine_mode); | |
47dd2e78 | 1980 | /* Resize reg info. */ |
a7dcf969 | 1981 | extern bool resize_reg_info (void); |
b6c8b728 | 1982 | /* Free up register info memory. */ |
3ad4992f | 1983 | extern void free_reg_info (void); |
e8eed2f8 | 1984 | extern void init_subregs_of_mode (void); |
1985 | extern void finish_subregs_of_mode (void); | |
b6c8b728 | 1986 | |
7cc785dd | 1987 | /* recog.c */ |
78f55ca8 | 1988 | extern rtx extract_asm_operands (rtx); |
52d07779 | 1989 | extern int asm_noperands (const_rtx); |
3ad4992f | 1990 | extern const char *decode_asm_operands (rtx, rtx *, rtx **, const char **, |
09fb10e8 | 1991 | enum machine_mode *, location_t *); |
759bebca | 1992 | |
3ad4992f | 1993 | extern enum reg_class reg_preferred_class (int); |
1994 | extern enum reg_class reg_alternate_class (int); | |
a5af08d2 | 1995 | extern enum reg_class reg_cover_class (int); |
a7dcf969 | 1996 | extern void setup_reg_classes (int, enum reg_class, enum reg_class, |
1997 | enum reg_class); | |
759bebca | 1998 | |
3072d30e | 1999 | extern void split_all_insns (void); |
2a1990e9 | 2000 | extern unsigned int split_all_insns_noflow (void); |
14d66741 | 2001 | |
1a60f06a | 2002 | #define MAX_SAVED_CONST_INT 64 |
1f3233d1 | 2003 | extern GTY(()) rtx const_int_rtx[MAX_SAVED_CONST_INT * 2 + 1]; |
1a60f06a | 2004 | |
57c097d5 | 2005 | #define const0_rtx (const_int_rtx[MAX_SAVED_CONST_INT]) |
2006 | #define const1_rtx (const_int_rtx[MAX_SAVED_CONST_INT+1]) | |
2007 | #define const2_rtx (const_int_rtx[MAX_SAVED_CONST_INT+2]) | |
2008 | #define constm1_rtx (const_int_rtx[MAX_SAVED_CONST_INT-1]) | |
1f3233d1 | 2009 | extern GTY(()) rtx const_true_rtx; |
ca9902fc | 2010 | |
1f3233d1 | 2011 | extern GTY(()) rtx const_tiny_rtx[3][(int) MAX_MACHINE_MODE]; |
ca9902fc | 2012 | |
f220c8f0 | 2013 | /* Returns a constant 0 rtx in mode MODE. Integer modes are treated the |
ca9902fc | 2014 | same as VOIDmode. */ |
2015 | ||
2016 | #define CONST0_RTX(MODE) (const_tiny_rtx[0][(int) (MODE)]) | |
2017 | ||
2018 | /* Likewise, for the constants 1 and 2. */ | |
2019 | ||
2020 | #define CONST1_RTX(MODE) (const_tiny_rtx[1][(int) (MODE)]) | |
2021 | #define CONST2_RTX(MODE) (const_tiny_rtx[2][(int) (MODE)]) | |
759bebca | 2022 | |
57c097d5 | 2023 | /* If HARD_FRAME_POINTER_REGNUM is defined, then a special dummy reg |
2024 | is used to represent the frame pointer. This is because the | |
2025 | hard frame pointer and the automatic variables are separated by an amount | |
2026 | that cannot be determined until after register allocation. We can assume | |
2027 | that in this case ELIMINABLE_REGS will be defined, one action of which | |
a7dce381 | 2028 | will be to eliminate FRAME_POINTER_REGNUM into HARD_FRAME_POINTER_REGNUM. */ |
57c097d5 | 2029 | #ifndef HARD_FRAME_POINTER_REGNUM |
2030 | #define HARD_FRAME_POINTER_REGNUM FRAME_POINTER_REGNUM | |
2031 | #endif | |
2032 | ||
5ae82d58 | 2033 | #ifndef HARD_FRAME_POINTER_IS_FRAME_POINTER |
2034 | #define HARD_FRAME_POINTER_IS_FRAME_POINTER \ | |
2035 | (HARD_FRAME_POINTER_REGNUM == FRAME_POINTER_REGNUM) | |
2036 | #endif | |
2037 | ||
2038 | #ifndef HARD_FRAME_POINTER_IS_ARG_POINTER | |
2039 | #define HARD_FRAME_POINTER_IS_ARG_POINTER \ | |
2040 | (HARD_FRAME_POINTER_REGNUM == ARG_POINTER_REGNUM) | |
2041 | #endif | |
2042 | ||
57c097d5 | 2043 | /* Index labels for global_rtl. */ |
2044 | enum global_rtl_index | |
1a60f06a | 2045 | { |
57c097d5 | 2046 | GR_PC, |
2047 | GR_CC0, | |
2048 | GR_STACK_POINTER, | |
2049 | GR_FRAME_POINTER, | |
2050 | /* For register elimination to work properly these hard_frame_pointer_rtx, | |
2051 | frame_pointer_rtx, and arg_pointer_rtx must be the same if they refer to | |
2052 | the same register. */ | |
2053 | #if FRAME_POINTER_REGNUM == ARG_POINTER_REGNUM | |
2054 | GR_ARG_POINTER = GR_FRAME_POINTER, | |
2055 | #endif | |
5ae82d58 | 2056 | #if HARD_FRAME_POINTER_IS_FRAME_POINTER |
57c097d5 | 2057 | GR_HARD_FRAME_POINTER = GR_FRAME_POINTER, |
2058 | #else | |
2059 | GR_HARD_FRAME_POINTER, | |
2060 | #endif | |
2061 | #if FRAME_POINTER_REGNUM != ARG_POINTER_REGNUM | |
5ae82d58 | 2062 | #if HARD_FRAME_POINTER_IS_ARG_POINTER |
57c097d5 | 2063 | GR_ARG_POINTER = GR_HARD_FRAME_POINTER, |
2064 | #else | |
2065 | GR_ARG_POINTER, | |
2066 | #endif | |
2067 | #endif | |
2068 | GR_VIRTUAL_INCOMING_ARGS, | |
2069 | GR_VIRTUAL_STACK_ARGS, | |
2070 | GR_VIRTUAL_STACK_DYNAMIC, | |
2071 | GR_VIRTUAL_OUTGOING_ARGS, | |
2072 | GR_VIRTUAL_CFA, | |
60778e62 | 2073 | GR_VIRTUAL_PREFERRED_STACK_BOUNDARY, |
57c097d5 | 2074 | |
2075 | GR_MAX | |
2076 | }; | |
2077 | ||
679bcc8d | 2078 | /* Target-dependent globals. */ |
2079 | struct GTY(()) target_rtl { | |
2080 | /* All references to the hard registers in global_rtl_index go through | |
2081 | these unique rtl objects. On machines where the frame-pointer and | |
2082 | arg-pointer are the same register, they use the same unique object. | |
2083 | ||
2084 | After register allocation, other rtl objects which used to be pseudo-regs | |
2085 | may be clobbered to refer to the frame-pointer register. | |
2086 | But references that were originally to the frame-pointer can be | |
2087 | distinguished from the others because they contain frame_pointer_rtx. | |
2088 | ||
2089 | When to use frame_pointer_rtx and hard_frame_pointer_rtx is a little | |
2090 | tricky: until register elimination has taken place hard_frame_pointer_rtx | |
2091 | should be used if it is being set, and frame_pointer_rtx otherwise. After | |
2092 | register elimination hard_frame_pointer_rtx should always be used. | |
2093 | On machines where the two registers are same (most) then these are the | |
2094 | same. */ | |
2095 | rtx x_global_rtl[GR_MAX]; | |
2096 | ||
2097 | /* A unique representation of (REG:Pmode PIC_OFFSET_TABLE_REGNUM). */ | |
2098 | rtx x_pic_offset_table_rtx; | |
2099 | ||
2100 | /* A unique representation of (REG:Pmode RETURN_ADDRESS_POINTER_REGNUM). | |
2101 | This is used to implement __builtin_return_address for some machines; | |
2102 | see for instance the MIPS port. */ | |
2103 | rtx x_return_address_pointer_rtx; | |
2104 | ||
2105 | /* Commonly used RTL for hard registers. These objects are not | |
2106 | necessarily unique, so we allocate them separately from global_rtl. | |
2107 | They are initialized once per compilation unit, then copied into | |
2108 | regno_reg_rtx at the beginning of each function. */ | |
2109 | rtx x_initial_regno_reg_rtx[FIRST_PSEUDO_REGISTER]; | |
75f8637a | 2110 | |
2111 | /* A sample (mem:M stack_pointer_rtx) rtx for each mode M. */ | |
2112 | rtx x_top_of_stack[MAX_MACHINE_MODE]; | |
eb2c25b5 | 2113 | |
2114 | /* Static hunks of RTL used by the aliasing code; these are treated | |
2115 | as persistent to avoid unnecessary RTL allocations. */ | |
2116 | rtx x_static_reg_base_value[FIRST_PSEUDO_REGISTER]; | |
679bcc8d | 2117 | }; |
2118 | ||
2119 | extern GTY(()) struct target_rtl default_target_rtl; | |
2120 | #if SWITCHABLE_TARGET | |
2121 | extern struct target_rtl *this_target_rtl; | |
2122 | #else | |
2123 | #define this_target_rtl (&default_target_rtl) | |
2124 | #endif | |
2125 | ||
2126 | #define global_rtl \ | |
2127 | (this_target_rtl->x_global_rtl) | |
2128 | #define pic_offset_table_rtx \ | |
2129 | (this_target_rtl->x_pic_offset_table_rtx) | |
2130 | #define return_address_pointer_rtx \ | |
2131 | (this_target_rtl->x_return_address_pointer_rtx) | |
75f8637a | 2132 | #define top_of_stack \ |
2133 | (this_target_rtl->x_top_of_stack) | |
57c097d5 | 2134 | |
2135 | /* Standard pieces of rtx, to be substituted directly into things. */ | |
2136 | #define pc_rtx (global_rtl[GR_PC]) | |
2137 | #define cc0_rtx (global_rtl[GR_CC0]) | |
1a60f06a | 2138 | |
759bebca | 2139 | /* All references to certain hard regs, except those created |
2140 | by allocating pseudo regs into them (when that's possible), | |
2141 | go through these unique rtx objects. */ | |
57c097d5 | 2142 | #define stack_pointer_rtx (global_rtl[GR_STACK_POINTER]) |
2143 | #define frame_pointer_rtx (global_rtl[GR_FRAME_POINTER]) | |
2144 | #define hard_frame_pointer_rtx (global_rtl[GR_HARD_FRAME_POINTER]) | |
2145 | #define arg_pointer_rtx (global_rtl[GR_ARG_POINTER]) | |
1a60f06a | 2146 | |
3ad7bb1c | 2147 | /* Include the RTL generation functions. */ |
2148 | ||
fdef3332 | 2149 | #ifndef GENERATOR_FILE |
3ad7bb1c | 2150 | #include "genrtl.h" |
09fb10e8 | 2151 | #undef gen_rtx_ASM_INPUT |
09fb10e8 | 2152 | #define gen_rtx_ASM_INPUT(MODE, ARG0) \ |
2153 | gen_rtx_fmt_si (ASM_INPUT, (MODE), (ARG0), 0) | |
2154 | #define gen_rtx_ASM_INPUT_loc(MODE, ARG0, LOC) \ | |
2155 | gen_rtx_fmt_si (ASM_INPUT, (MODE), (ARG0), (LOC)) | |
3ad7bb1c | 2156 | #endif |
2157 | ||
b5ba9f3a | 2158 | /* There are some RTL codes that require special attention; the |
2159 | generation functions included above do the raw handling. If you | |
8fd5918e | 2160 | add to this list, modify special_rtx in gengenrtl.c as well. */ |
3ad7bb1c | 2161 | |
3ad4992f | 2162 | extern rtx gen_rtx_CONST_INT (enum machine_mode, HOST_WIDE_INT); |
2163 | extern rtx gen_rtx_CONST_VECTOR (enum machine_mode, rtvec); | |
2164 | extern rtx gen_raw_REG (enum machine_mode, int); | |
2165 | extern rtx gen_rtx_REG (enum machine_mode, unsigned); | |
2166 | extern rtx gen_rtx_SUBREG (enum machine_mode, rtx, int); | |
2167 | extern rtx gen_rtx_MEM (enum machine_mode, rtx); | |
3ad7bb1c | 2168 | |
1e9d55d7 | 2169 | #define GEN_INT(N) gen_rtx_CONST_INT (VOIDmode, (N)) |
3ad7bb1c | 2170 | |
759bebca | 2171 | /* Virtual registers are used during RTL generation to refer to locations into |
2172 | the stack frame when the actual location isn't known until RTL generation | |
2173 | is complete. The routine instantiate_virtual_regs replaces these with | |
2174 | the proper value, which is normally {frame,arg,stack}_pointer_rtx plus | |
2175 | a constant. */ | |
2176 | ||
2177 | #define FIRST_VIRTUAL_REGISTER (FIRST_PSEUDO_REGISTER) | |
2178 | ||
2179 | /* This points to the first word of the incoming arguments passed on the stack, | |
2180 | either by the caller or by the callee when pretending it was passed by the | |
2181 | caller. */ | |
2182 | ||
57c097d5 | 2183 | #define virtual_incoming_args_rtx (global_rtl[GR_VIRTUAL_INCOMING_ARGS]) |
759bebca | 2184 | |
2185 | #define VIRTUAL_INCOMING_ARGS_REGNUM (FIRST_VIRTUAL_REGISTER) | |
2186 | ||
511d786c | 2187 | /* If FRAME_GROWS_DOWNWARD, this points to immediately above the first |
759bebca | 2188 | variable on the stack. Otherwise, it points to the first variable on |
2189 | the stack. */ | |
2190 | ||
57c097d5 | 2191 | #define virtual_stack_vars_rtx (global_rtl[GR_VIRTUAL_STACK_ARGS]) |
759bebca | 2192 | |
2193 | #define VIRTUAL_STACK_VARS_REGNUM ((FIRST_VIRTUAL_REGISTER) + 1) | |
2194 | ||
2195 | /* This points to the location of dynamically-allocated memory on the stack | |
2196 | immediately after the stack pointer has been adjusted by the amount | |
2197 | desired. */ | |
2198 | ||
57c097d5 | 2199 | #define virtual_stack_dynamic_rtx (global_rtl[GR_VIRTUAL_STACK_DYNAMIC]) |
759bebca | 2200 | |
2201 | #define VIRTUAL_STACK_DYNAMIC_REGNUM ((FIRST_VIRTUAL_REGISTER) + 2) | |
2202 | ||
2203 | /* This points to the location in the stack at which outgoing arguments should | |
2204 | be written when the stack is pre-pushed (arguments pushed using push | |
2205 | insns always use sp). */ | |
2206 | ||
57c097d5 | 2207 | #define virtual_outgoing_args_rtx (global_rtl[GR_VIRTUAL_OUTGOING_ARGS]) |
759bebca | 2208 | |
2209 | #define VIRTUAL_OUTGOING_ARGS_REGNUM ((FIRST_VIRTUAL_REGISTER) + 3) | |
2210 | ||
ec37ccb4 | 2211 | /* This points to the Canonical Frame Address of the function. This |
de132707 | 2212 | should correspond to the CFA produced by INCOMING_FRAME_SP_OFFSET, |
ec37ccb4 | 2213 | but is calculated relative to the arg pointer for simplicity; the |
f220c8f0 | 2214 | frame pointer nor stack pointer are necessarily fixed relative to |
ec37ccb4 | 2215 | the CFA until after reload. */ |
2216 | ||
57c097d5 | 2217 | #define virtual_cfa_rtx (global_rtl[GR_VIRTUAL_CFA]) |
ec37ccb4 | 2218 | |
2219 | #define VIRTUAL_CFA_REGNUM ((FIRST_VIRTUAL_REGISTER) + 4) | |
2220 | ||
60778e62 | 2221 | #define LAST_VIRTUAL_POINTER_REGISTER ((FIRST_VIRTUAL_REGISTER) + 4) |
2222 | ||
2223 | /* This is replaced by crtl->preferred_stack_boundary / BITS_PER_UNIT | |
2224 | when finalized. */ | |
2225 | ||
2226 | #define virtual_preferred_stack_boundary_rtx \ | |
2227 | (global_rtl[GR_VIRTUAL_PREFERRED_STACK_BOUNDARY]) | |
2228 | ||
2229 | #define VIRTUAL_PREFERRED_STACK_BOUNDARY_REGNUM \ | |
2230 | ((FIRST_VIRTUAL_REGISTER) + 5) | |
2231 | ||
2232 | #define LAST_VIRTUAL_REGISTER ((FIRST_VIRTUAL_REGISTER) + 5) | |
759bebca | 2233 | |
2b96c5f6 | 2234 | /* Nonzero if REGNUM is a pointer into the stack frame. */ |
1a97be37 | 2235 | #define REGNO_PTR_FRAME_P(REGNUM) \ |
2b96c5f6 | 2236 | ((REGNUM) == STACK_POINTER_REGNUM \ |
2237 | || (REGNUM) == FRAME_POINTER_REGNUM \ | |
2238 | || (REGNUM) == HARD_FRAME_POINTER_REGNUM \ | |
2239 | || (REGNUM) == ARG_POINTER_REGNUM \ | |
2240 | || ((REGNUM) >= FIRST_VIRTUAL_REGISTER \ | |
60778e62 | 2241 | && (REGNUM) <= LAST_VIRTUAL_POINTER_REGISTER)) |
2b96c5f6 | 2242 | |
14e6e4d4 | 2243 | /* REGNUM never really appearing in the INSN stream. */ |
47c251e5 | 2244 | #define INVALID_REGNUM (~(unsigned int) 0) |
14e6e4d4 | 2245 | |
3ad4992f | 2246 | extern rtx output_constant_def (tree, int); |
6e326506 | 2247 | extern rtx lookup_constant_def (tree); |
759bebca | 2248 | |
759bebca | 2249 | /* Nonzero after end of reload pass. |
b0a37f5c | 2250 | Set to 1 or 0 by reload1.c. */ |
759bebca | 2251 | |
2252 | extern int reload_completed; | |
2253 | ||
8af3db02 | 2254 | /* Nonzero after thread_prologue_and_epilogue_insns has run. */ |
2255 | extern int epilogue_completed; | |
2256 | ||
759bebca | 2257 | /* Set to 1 while reload_as_needed is operating. |
2258 | Required by some machines to handle any generated moves differently. */ | |
2259 | ||
2260 | extern int reload_in_progress; | |
2261 | ||
e1ba4a27 | 2262 | /* This macro indicates whether you may create a new |
2263 | pseudo-register. */ | |
2264 | ||
2265 | #define can_create_pseudo_p() (!reload_in_progress && !reload_completed) | |
2266 | ||
3e6933a8 | 2267 | #ifdef STACK_REGS |
2268 | /* Nonzero after end of regstack pass. | |
2269 | Set to 1 or 0 by reg-stack.c. */ | |
2270 | extern int regstack_completed; | |
2271 | #endif | |
2272 | ||
759bebca | 2273 | /* If this is nonzero, we do not bother generating VOLATILE |
2274 | around volatile memory references, and we are willing to | |
2275 | output indirect addresses. If cse is to follow, we reject | |
2276 | indirect addresses so a useful potential cse is generated; | |
2277 | if it is used only once, instruction combination will produce | |
2278 | the same indirect address eventually. */ | |
2279 | extern int cse_not_expected; | |
2280 | ||
dd901a13 | 2281 | /* Translates rtx code to tree code, for those codes needed by |
283f631a | 2282 | REAL_ARITHMETIC. The function returns an int because the caller may not |
2283 | know what `enum tree_code' means. */ | |
2284 | ||
3ad4992f | 2285 | extern int rtx_to_tree_code (enum rtx_code); |
ea0cb7ae | 2286 | |
bc33205e | 2287 | /* In cse.c */ |
3ad4992f | 2288 | extern int delete_trivially_dead_insns (rtx, int); |
3f5be5f4 | 2289 | extern int cse_main (rtx, int); |
52d07779 | 2290 | extern int exp_equiv_p (const_rtx, const_rtx, int, bool); |
2291 | extern unsigned hash_rtx (const_rtx x, enum machine_mode, int *, int *, bool); | |
bc33205e | 2292 | |
017b7047 | 2293 | /* In dse.c */ |
2294 | extern void check_for_inc_dec (rtx insn); | |
2295 | ||
bc33205e | 2296 | /* In jump.c */ |
3ad4992f | 2297 | extern int comparison_dominates_p (enum rtx_code, enum rtx_code); |
52d07779 | 2298 | extern int condjump_p (const_rtx); |
2299 | extern int any_condjump_p (const_rtx); | |
2300 | extern int any_uncondjump_p (const_rtx); | |
2301 | extern rtx pc_set (const_rtx); | |
5493cb9a | 2302 | extern rtx condjump_label (const_rtx); |
52d07779 | 2303 | extern int simplejump_p (const_rtx); |
3ad4992f | 2304 | extern int returnjump_p (rtx); |
25e880b1 | 2305 | extern int eh_returnjump_p (rtx); |
52d07779 | 2306 | extern int onlyjump_p (const_rtx); |
2307 | extern int only_sets_cc0_p (const_rtx); | |
2308 | extern int sets_cc0_p (const_rtx); | |
3ad4992f | 2309 | extern int invert_jump_1 (rtx, rtx); |
2310 | extern int invert_jump (rtx, rtx, int); | |
a9f1838b | 2311 | extern int rtx_renumbered_equal_p (const_rtx, const_rtx); |
52d07779 | 2312 | extern int true_regnum (const_rtx); |
2313 | extern unsigned int reg_or_subregno (const_rtx); | |
3ad4992f | 2314 | extern int redirect_jump_1 (rtx, rtx); |
82880dfd | 2315 | extern void redirect_jump_2 (rtx, rtx, rtx, int, int); |
3ad4992f | 2316 | extern int redirect_jump (rtx, rtx, int); |
2317 | extern void rebuild_jump_labels (rtx); | |
5493cb9a | 2318 | extern rtx reversed_comparison (const_rtx, enum machine_mode); |
2319 | extern enum rtx_code reversed_comparison_code (const_rtx, const_rtx); | |
2320 | extern enum rtx_code reversed_comparison_code_parts (enum rtx_code, const_rtx, | |
2321 | const_rtx, const_rtx); | |
3ad4992f | 2322 | extern void delete_for_peephole (rtx, rtx); |
52d07779 | 2323 | extern int condjump_in_parallel_p (const_rtx); |
f5e86f05 | 2324 | |
a7dce381 | 2325 | /* In emit-rtl.c. */ |
3ad4992f | 2326 | extern int max_reg_num (void); |
2327 | extern int max_label_num (void); | |
2328 | extern int get_first_label_num (void); | |
4ee9c684 | 2329 | extern void maybe_set_first_label_num (rtx); |
3ad4992f | 2330 | extern void delete_insns_since (rtx); |
2331 | extern void mark_reg_pointer (rtx, int); | |
2332 | extern void mark_user_reg (rtx); | |
2333 | extern void reset_used_flags (rtx); | |
1cd4cfea | 2334 | extern void set_used_flags (rtx); |
3ad4992f | 2335 | extern void reorder_insns (rtx, rtx, rtx); |
2336 | extern void reorder_insns_nobb (rtx, rtx, rtx); | |
9845d120 | 2337 | extern int get_max_insn_count (void); |
3ad4992f | 2338 | extern int in_sequence_p (void); |
2339 | extern void force_next_line_note (void); | |
2340 | extern void init_emit (void); | |
6d8b68a3 | 2341 | extern void init_emit_regs (void); |
01703575 | 2342 | extern void init_emit_once (void); |
3ad4992f | 2343 | extern void push_topmost_sequence (void); |
2344 | extern void pop_topmost_sequence (void); | |
3ad4992f | 2345 | extern void set_new_first_and_last_insn (rtx, rtx); |
2a1990e9 | 2346 | extern unsigned int unshare_all_rtl (void); |
3ad4992f | 2347 | extern void unshare_all_rtl_again (rtx); |
1cd4cfea | 2348 | extern void unshare_all_rtl_in_chain (rtx); |
2349 | extern void verify_rtl_sharing (void); | |
3ad4992f | 2350 | extern void link_cc0_insns (rtx); |
2351 | extern void add_insn (rtx); | |
3072d30e | 2352 | extern void add_insn_before (rtx, rtx, struct basic_block_def *); |
2353 | extern void add_insn_after (rtx, rtx, struct basic_block_def *); | |
3ad4992f | 2354 | extern void remove_insn (rtx); |
3ad4992f | 2355 | extern rtx emit (rtx); |
3ad4992f | 2356 | extern rtx delete_insn (rtx); |
a0fee14a | 2357 | extern rtx entry_of_function (void); |
aa02fa19 | 2358 | extern void emit_insn_at_entry (rtx); |
39257eb5 | 2359 | extern void delete_insn_chain (rtx, rtx, bool); |
3ad4992f | 2360 | extern rtx unlink_insn_chain (rtx, rtx); |
2361 | extern rtx delete_insn_and_edges (rtx); | |
fd00232c | 2362 | extern rtx gen_lowpart_SUBREG (enum machine_mode, rtx); |
e265a6da | 2363 | extern rtx gen_const_mem (enum machine_mode, rtx); |
00060fc2 | 2364 | extern rtx gen_frame_mem (enum machine_mode, rtx); |
2365 | extern rtx gen_tmp_stack_mem (enum machine_mode, rtx); | |
2166bbaa | 2366 | extern bool validate_subreg (enum machine_mode, enum machine_mode, |
7ecb5bb2 | 2367 | const_rtx, unsigned int); |
bc33205e | 2368 | |
3072d30e | 2369 | /* In combine.c */ |
52d07779 | 2370 | extern unsigned int extended_count (const_rtx, enum machine_mode, int); |
d598ad0d | 2371 | extern rtx remove_death (unsigned int, rtx); |
d598ad0d | 2372 | extern void dump_combine_stats (FILE *); |
2373 | extern void dump_combine_total_stats (FILE *); | |
bc33205e | 2374 | |
3072d30e | 2375 | /* In cfgcleanup.c */ |
2376 | extern void delete_dead_jumptables (void); | |
2377 | ||
75ab26dc | 2378 | /* In sched-vis.c. */ |
e1ab7874 | 2379 | extern void debug_bb_n_slim (int); |
2380 | extern void debug_bb_slim (struct basic_block_def *); | |
2381 | extern void print_rtl_slim (FILE *, rtx, rtx, int, int); | |
75ab26dc | 2382 | extern void print_rtl_slim_with_bb (FILE *, rtx, int); |
2383 | extern void dump_insn_slim (FILE *f, rtx x); | |
2384 | extern void debug_insn_slim (rtx x); | |
2385 | ||
fd00232c | 2386 | /* In sched-rgn.c. */ |
3f5be5f4 | 2387 | extern void schedule_insns (void); |
fd00232c | 2388 | |
2389 | /* In sched-ebb.c. */ | |
3f5be5f4 | 2390 | extern void schedule_ebbs (void); |
fd00232c | 2391 | |
e1ab7874 | 2392 | /* In sel-sched-dump.c. */ |
2393 | extern void sel_sched_fix_param (const char *param, const char *val); | |
2394 | ||
bc33205e | 2395 | /* In print-rtl.c */ |
52fd6db3 | 2396 | extern const char *print_rtx_head; |
dd9b9fc5 | 2397 | extern void debug_rtx (const_rtx); |
2398 | extern void debug_rtx_list (const_rtx, int); | |
2399 | extern void debug_rtx_range (const_rtx, const_rtx); | |
2400 | extern const_rtx debug_rtx_find (const_rtx, int); | |
2401 | extern void print_mem_expr (FILE *, const_tree); | |
2402 | extern void print_rtl (FILE *, const_rtx); | |
2403 | extern void print_simple_rtl (FILE *, const_rtx); | |
2404 | extern int print_rtl_single (FILE *, const_rtx); | |
2405 | extern void print_inline_rtx (FILE *, const_rtx, int); | |
bc33205e | 2406 | |
bc33205e | 2407 | /* In function.c */ |
3072d30e | 2408 | extern void reposition_prologue_and_epilogue_notes (void); |
52d07779 | 2409 | extern int prologue_epilogue_contains (const_rtx); |
2410 | extern int sibcall_epilogue_contains (const_rtx); | |
3ad4992f | 2411 | extern void mark_temp_addr_taken (rtx); |
2412 | extern void update_temp_slot_address (rtx, rtx); | |
1eefcaee | 2413 | extern void maybe_copy_prologue_epilogue_insn (rtx, rtx); |
bc33205e | 2414 | |
bc33205e | 2415 | /* In stmt.c */ |
3ad4992f | 2416 | extern void expand_null_return (void); |
62380d2d | 2417 | extern void expand_naked_return (void); |
3ad4992f | 2418 | extern void emit_jump (rtx); |
bc33205e | 2419 | |
2420 | /* In expr.c */ | |
3ad4992f | 2421 | extern rtx move_by_pieces (rtx, rtx, unsigned HOST_WIDE_INT, |
2422 | unsigned int, int); | |
9d7facc8 | 2423 | |
3072d30e | 2424 | /* In cfgrtl.c */ |
1f1872fd | 2425 | extern void print_rtl_with_bb (FILE *, const_rtx); |
3072d30e | 2426 | |
2427 | /* In cfg.c. */ | |
2428 | extern void dump_reg_info (FILE *); | |
562d71e8 | 2429 | extern void dump_flow_info (FILE *, int); |
bc33205e | 2430 | |
2431 | /* In expmed.c */ | |
3ad4992f | 2432 | extern void init_expmed (void); |
2433 | extern void expand_inc (rtx, rtx); | |
2434 | extern void expand_dec (rtx, rtx); | |
bc33205e | 2435 | |
ebd9163c | 2436 | /* In gcse.c */ |
3ad4992f | 2437 | extern bool can_copy_p (enum machine_mode); |
4b673aa1 | 2438 | extern bool can_assign_to_reg_without_clobbers_p (rtx); |
3ad4992f | 2439 | extern rtx fis_get_condition (rtx); |
78d140c9 | 2440 | |
cf709bf6 | 2441 | /* In ira.c */ |
47dd2e78 | 2442 | #ifdef HARD_CONST |
2443 | extern HARD_REG_SET eliminable_regset; | |
2444 | #endif | |
3ad4992f | 2445 | extern void mark_elimination (int, int); |
bc33205e | 2446 | |
ac502adf | 2447 | /* In reginfo.c */ |
fbd79b7a | 2448 | extern int reg_classes_intersect_p (reg_class_t, reg_class_t); |
2dfa2c74 | 2449 | extern int reg_class_subset_p (reg_class_t, reg_class_t); |
3ad4992f | 2450 | extern void globalize_reg (int); |
6d8b68a3 | 2451 | extern void init_reg_modes_target (void); |
3ad4992f | 2452 | extern void init_regs (void); |
c950adc6 | 2453 | extern void reinit_regs (void); |
3ad4992f | 2454 | extern void init_fake_stack_mems (void); |
7fecc8b3 | 2455 | extern void save_register_info (void); |
3ad4992f | 2456 | extern void init_reg_sets (void); |
3f5be5f4 | 2457 | extern void regclass (rtx, int); |
283a0d5c | 2458 | extern void reg_scan (rtx, unsigned int); |
3ad4992f | 2459 | extern void fix_register (const char *, int, int); |
63dae96b | 2460 | extern bool invalid_mode_change_p (unsigned int, enum reg_class); |
0019492d | 2461 | |
ebd9163c | 2462 | /* In reorg.c */ |
3f5be5f4 | 2463 | extern void dbr_schedule (rtx); |
ebd9163c | 2464 | |
dfc4de0a | 2465 | /* In reload1.c */ |
52d07779 | 2466 | extern int function_invariant_p (const_rtx); |
dfc4de0a | 2467 | |
bc33205e | 2468 | /* In calls.c */ |
2c5d421b | 2469 | enum libcall_type |
2470 | { | |
2471 | LCT_NORMAL = 0, | |
2472 | LCT_CONST = 1, | |
2473 | LCT_PURE = 2, | |
2dd6f9ed | 2474 | LCT_NORETURN = 3, |
2475 | LCT_THROW = 4, | |
2476 | LCT_RETURNS_TWICE = 5 | |
2c5d421b | 2477 | }; |
2478 | ||
3ad4992f | 2479 | extern void emit_library_call (rtx, enum libcall_type, enum machine_mode, int, |
2480 | ...); | |
2481 | extern rtx emit_library_call_value (rtx, rtx, enum libcall_type, | |
2482 | enum machine_mode, int, ...); | |
bc33205e | 2483 | |
bc33205e | 2484 | /* In varasm.c */ |
3ad4992f | 2485 | extern void init_varasm_once (void); |
48e1416a | 2486 | |
a2f58a79 | 2487 | extern rtx make_debug_expr_from_rtl (const_rtx); |
2488 | ||
fdef3332 | 2489 | /* In read-rtl.c */ |
77ba95d0 | 2490 | extern bool read_rtx (const char *, rtx *); |
0922b1b8 | 2491 | |
bc33205e | 2492 | /* In alias.c */ |
aecda0d6 | 2493 | extern rtx canon_rtx (rtx); |
52d07779 | 2494 | extern int true_dependence (const_rtx, enum machine_mode, const_rtx, bool (*)(const_rtx, bool)); |
aecda0d6 | 2495 | extern rtx get_addr (rtx); |
52d07779 | 2496 | extern int canon_true_dependence (const_rtx, enum machine_mode, rtx, const_rtx, |
82d2c88b | 2497 | rtx, bool (*)(const_rtx, bool)); |
52d07779 | 2498 | extern int read_dependence (const_rtx, const_rtx); |
2499 | extern int anti_dependence (const_rtx, const_rtx); | |
2500 | extern int output_dependence (const_rtx, const_rtx); | |
a84256aa | 2501 | extern int may_alias_p (const_rtx, const_rtx); |
6d8b68a3 | 2502 | extern void init_alias_target (void); |
aecda0d6 | 2503 | extern void init_alias_analysis (void); |
2504 | extern void end_alias_analysis (void); | |
1837e966 | 2505 | extern void vt_equate_reg_base_value (const_rtx, const_rtx); |
5493cb9a | 2506 | extern bool memory_modified_in_insn_p (const_rtx, const_rtx); |
aecda0d6 | 2507 | extern rtx find_base_term (rtx); |
c09425a0 | 2508 | extern rtx gen_hard_reg_clobber (enum machine_mode, unsigned int); |
12cb06ad | 2509 | extern rtx get_reg_known_value (unsigned int); |
2510 | extern bool get_reg_known_equiv_p (unsigned int); | |
0cfef6c5 | 2511 | extern rtx get_reg_base_value (unsigned int); |
23f5e759 | 2512 | |
b67ec609 | 2513 | #ifdef STACK_REGS |
5493cb9a | 2514 | extern int stack_regs_mentioned (const_rtx insn); |
b67ec609 | 2515 | #endif |
2516 | ||
8f8ac140 | 2517 | /* In toplev.c */ |
1f3233d1 | 2518 | extern GTY(()) rtx stack_limit_rtx; |
120911d5 | 2519 | |
13488c51 | 2520 | /* In predict.c */ |
3ad4992f | 2521 | extern void invert_br_probabilities (rtx); |
2522 | extern bool expensive_function_p (int); | |
897118e8 | 2523 | |
5923a5e7 | 2524 | /* In var-tracking.c */ |
2a1990e9 | 2525 | extern unsigned int variable_tracking_main (void); |
5923a5e7 | 2526 | |
f9cce2dc | 2527 | /* In stor-layout.c. */ |
a6629703 | 2528 | extern void get_mode_bounds (enum machine_mode, int, enum machine_mode, |
2529 | rtx *, rtx *); | |
f9cce2dc | 2530 | |
2531 | /* In loop-unswitch.c */ | |
2532 | extern rtx reversed_condition (rtx); | |
2533 | extern rtx compare_and_jump_seq (rtx, rtx, enum rtx_code, rtx, int, rtx); | |
2534 | ||
2535 | /* In loop-iv.c */ | |
2536 | extern rtx canon_condition (rtx); | |
2537 | extern void simplify_using_condition (rtx, rtx *, struct bitmap_head_def *); | |
e1ab7874 | 2538 | |
2539 | /* In final.c */ | |
2540 | extern unsigned int compute_alignments (void); | |
1ca8efe4 | 2541 | extern int asm_str_count (const char *templ); |
d263732c | 2542 | \f |
2543 | struct rtl_hooks | |
2544 | { | |
2545 | rtx (*gen_lowpart) (enum machine_mode, rtx); | |
8666c391 | 2546 | rtx (*gen_lowpart_no_emit) (enum machine_mode, rtx); |
b7bf20db | 2547 | rtx (*reg_nonzero_bits) (const_rtx, enum machine_mode, const_rtx, enum machine_mode, |
d263732c | 2548 | unsigned HOST_WIDE_INT, unsigned HOST_WIDE_INT *); |
b7bf20db | 2549 | rtx (*reg_num_sign_bit_copies) (const_rtx, enum machine_mode, const_rtx, enum machine_mode, |
d263732c | 2550 | unsigned int, unsigned int *); |
b7bf20db | 2551 | bool (*reg_truncated_to_mode) (enum machine_mode, const_rtx); |
d263732c | 2552 | |
fd95fba4 | 2553 | /* Whenever you add entries here, make sure you adjust rtlhooks-def.h. */ |
d263732c | 2554 | }; |
2555 | ||
2556 | /* Each pass can provide its own. */ | |
2557 | extern struct rtl_hooks rtl_hooks; | |
2558 | ||
2559 | /* ... but then it has to restore these. */ | |
2560 | extern const struct rtl_hooks general_rtl_hooks; | |
2561 | ||
2562 | /* Keep this for the nonce. */ | |
2563 | #define gen_lowpart rtl_hooks.gen_lowpart | |
2564 | ||
375c1c8a | 2565 | extern void insn_locators_alloc (void); |
8b3949ab | 2566 | extern void insn_locators_free (void); |
375c1c8a | 2567 | extern void insn_locators_finalize (void); |
2568 | extern void set_curr_insn_source_location (location_t); | |
9845d120 | 2569 | extern location_t get_curr_insn_source_location (void); |
375c1c8a | 2570 | extern void set_curr_insn_block (tree); |
9845d120 | 2571 | extern tree get_curr_insn_block (void); |
375c1c8a | 2572 | extern int curr_insn_locator (void); |
f529eb25 | 2573 | extern bool optimize_insn_for_size_p (void); |
2574 | extern bool optimize_insn_for_speed_p (void); | |
375c1c8a | 2575 | |
d7091a76 | 2576 | /* rtl-error.c */ |
2577 | extern void _fatal_insn_not_found (const_rtx, const char *, int, const char *) | |
2578 | ATTRIBUTE_NORETURN; | |
2579 | extern void _fatal_insn (const char *, const_rtx, const char *, int, const char *) | |
2580 | ATTRIBUTE_NORETURN; | |
2581 | ||
2582 | #define fatal_insn(msgid, insn) \ | |
2583 | _fatal_insn (msgid, insn, __FILE__, __LINE__, __FUNCTION__) | |
2584 | #define fatal_insn_not_found(insn) \ | |
2585 | _fatal_insn_not_found (insn, __FILE__, __LINE__, __FUNCTION__) | |
2586 | ||
2587 | ||
2588 | ||
2a281353 | 2589 | #endif /* ! GCC_RTL_H */ |