1 /* Definitions for code generation pass of GNU compiler.
2 Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006
3 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GCC is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to
19 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA. */
25 #include "insn-codes.h"
27 /* Optabs are tables saying how to generate insn bodies
28 for various machine modes and numbers of operands.
29 Each optab applies to one operation.
30 For example, add_optab applies to addition.
32 The insn_code slot is the enum insn_code that says how to
33 generate an insn for this operation on a particular machine mode.
34 It is CODE_FOR_nothing if there is no such insn on the target machine.
36 The `lib_call' slot is the name of the library function that
37 can be used to perform the operation.
39 A few optabs, such as move_optab and cmp_optab, are used
42 struct optab_handlers
GTY(())
44 enum insn_code insn_code
;
51 struct optab_handlers handlers
[NUM_MACHINE_MODES
];
53 typedef struct optab
* optab
;
55 /* A convert_optab is for some sort of conversion operation between
56 modes. The first array index is the destination mode, the second
57 is the source mode. */
58 struct convert_optab
GTY(())
61 struct optab_handlers handlers
[NUM_MACHINE_MODES
][NUM_MACHINE_MODES
];
63 typedef struct convert_optab
*convert_optab
;
65 /* Given an enum insn_code, access the function to construct
66 the body of that kind of insn. */
67 #define GEN_FCN(CODE) (insn_data[CODE].genfun)
69 /* Enumeration of valid indexes into optab_table. */
77 /* Signed and fp multiply */
80 /* Signed multiply, return high word */
83 /* Signed multiply with result one machine mode wider than args */
86 /* Widening multiply of one unsigned and one signed operand. */
92 /* Signed divide-and-remainder in one */
96 /* Signed remainder */
99 /* Floating point remainder functions */
102 /* Convert float to integer in float fmt */
112 /* Arithmetic shift left */
114 /* Logical shift right */
116 /* Arithmetic shift right */
122 /* Signed and floating-point minimum value */
124 /* Signed and floating-point maximum value */
126 /* Unsigned minimum value */
128 /* Unsigned maximum value */
132 /* Arc tangent of y/x */
135 /* Move instruction. */
137 /* Move, preserving high part of register. */
139 /* Move, with a misaligned memory. */
142 /* Unary operations */
151 /* Bit scanning and counting */
171 /* Base-10 Exponential */
173 /* Base-2 Exponential */
177 /* Load exponent of a floating point number */
179 /* Radix-independent exponent */
182 /* Natural Logarithm */
184 /* Base-10 Logarithm */
186 /* Base-2 Logarithm */
188 /* logarithm of 1 plus argument */
190 /* Rounding functions */
199 /* Inverse tangent */
204 /* Compare insn; two operands. */
206 /* Used only for libcalls for unsigned comparisons. */
208 /* tst insn; compare one operand against 0 */
211 /* Floating point comparison optabs - used primarily for libfuncs */
223 /* Combined compare & jump/store flags/move operations. */
228 /* Push instruction. */
231 /* Conditional add instruction. */
234 /* Reduction operations on a vector operand. */
242 /* Summation, with result machine mode one or more wider than args. */
246 /* Dot product, with result machine mode one or more wider than args. */
250 /* Set specified field of vector operand. */
252 /* Extract specified field of vector operand. */
254 /* Initialize vector operand. */
256 /* Whole vector shift. The shift amount is in bits. */
259 /* Extract specified elements from vectors, for vector load. */
260 OTI_vec_realign_load
,
262 /* Perform a raise to the power of integer. */
268 extern GTY(()) optab optab_table
[OTI_MAX
];
270 #define add_optab (optab_table[OTI_add])
271 #define sub_optab (optab_table[OTI_sub])
272 #define smul_optab (optab_table[OTI_smul])
273 #define addv_optab (optab_table[OTI_addv])
274 #define subv_optab (optab_table[OTI_subv])
275 #define smul_highpart_optab (optab_table[OTI_smul_highpart])
276 #define umul_highpart_optab (optab_table[OTI_umul_highpart])
277 #define smul_widen_optab (optab_table[OTI_smul_widen])
278 #define umul_widen_optab (optab_table[OTI_umul_widen])
279 #define usmul_widen_optab (optab_table[OTI_usmul_widen])
280 #define sdiv_optab (optab_table[OTI_sdiv])
281 #define smulv_optab (optab_table[OTI_smulv])
282 #define sdivv_optab (optab_table[OTI_sdivv])
283 #define sdivmod_optab (optab_table[OTI_sdivmod])
284 #define udiv_optab (optab_table[OTI_udiv])
285 #define udivmod_optab (optab_table[OTI_udivmod])
286 #define smod_optab (optab_table[OTI_smod])
287 #define umod_optab (optab_table[OTI_umod])
288 #define fmod_optab (optab_table[OTI_fmod])
289 #define remainder_optab (optab_table[OTI_remainder])
290 #define ftrunc_optab (optab_table[OTI_ftrunc])
291 #define and_optab (optab_table[OTI_and])
292 #define ior_optab (optab_table[OTI_ior])
293 #define xor_optab (optab_table[OTI_xor])
294 #define ashl_optab (optab_table[OTI_ashl])
295 #define lshr_optab (optab_table[OTI_lshr])
296 #define ashr_optab (optab_table[OTI_ashr])
297 #define rotl_optab (optab_table[OTI_rotl])
298 #define rotr_optab (optab_table[OTI_rotr])
299 #define smin_optab (optab_table[OTI_smin])
300 #define smax_optab (optab_table[OTI_smax])
301 #define umin_optab (optab_table[OTI_umin])
302 #define umax_optab (optab_table[OTI_umax])
303 #define pow_optab (optab_table[OTI_pow])
304 #define atan2_optab (optab_table[OTI_atan2])
306 #define mov_optab (optab_table[OTI_mov])
307 #define movstrict_optab (optab_table[OTI_movstrict])
308 #define movmisalign_optab (optab_table[OTI_movmisalign])
310 #define neg_optab (optab_table[OTI_neg])
311 #define negv_optab (optab_table[OTI_negv])
312 #define abs_optab (optab_table[OTI_abs])
313 #define absv_optab (optab_table[OTI_absv])
314 #define one_cmpl_optab (optab_table[OTI_one_cmpl])
315 #define ffs_optab (optab_table[OTI_ffs])
316 #define clz_optab (optab_table[OTI_clz])
317 #define ctz_optab (optab_table[OTI_ctz])
318 #define popcount_optab (optab_table[OTI_popcount])
319 #define parity_optab (optab_table[OTI_parity])
320 #define sqrt_optab (optab_table[OTI_sqrt])
321 #define sincos_optab (optab_table[OTI_sincos])
322 #define sin_optab (optab_table[OTI_sin])
323 #define asin_optab (optab_table[OTI_asin])
324 #define cos_optab (optab_table[OTI_cos])
325 #define acos_optab (optab_table[OTI_acos])
326 #define exp_optab (optab_table[OTI_exp])
327 #define exp10_optab (optab_table[OTI_exp10])
328 #define exp2_optab (optab_table[OTI_exp2])
329 #define expm1_optab (optab_table[OTI_expm1])
330 #define ldexp_optab (optab_table[OTI_ldexp])
331 #define logb_optab (optab_table[OTI_logb])
332 #define ilogb_optab (optab_table[OTI_ilogb])
333 #define log_optab (optab_table[OTI_log])
334 #define log10_optab (optab_table[OTI_log10])
335 #define log2_optab (optab_table[OTI_log2])
336 #define log1p_optab (optab_table[OTI_log1p])
337 #define floor_optab (optab_table[OTI_floor])
338 #define ceil_optab (optab_table[OTI_ceil])
339 #define btrunc_optab (optab_table[OTI_btrunc])
340 #define round_optab (optab_table[OTI_round])
341 #define nearbyint_optab (optab_table[OTI_nearbyint])
342 #define rint_optab (optab_table[OTI_rint])
343 #define tan_optab (optab_table[OTI_tan])
344 #define atan_optab (optab_table[OTI_atan])
345 #define copysign_optab (optab_table[OTI_copysign])
347 #define cmp_optab (optab_table[OTI_cmp])
348 #define ucmp_optab (optab_table[OTI_ucmp])
349 #define tst_optab (optab_table[OTI_tst])
351 #define eq_optab (optab_table[OTI_eq])
352 #define ne_optab (optab_table[OTI_ne])
353 #define gt_optab (optab_table[OTI_gt])
354 #define ge_optab (optab_table[OTI_ge])
355 #define lt_optab (optab_table[OTI_lt])
356 #define le_optab (optab_table[OTI_le])
357 #define unord_optab (optab_table[OTI_unord])
359 #define strlen_optab (optab_table[OTI_strlen])
361 #define cbranch_optab (optab_table[OTI_cbranch])
362 #define cmov_optab (optab_table[OTI_cmov])
363 #define cstore_optab (optab_table[OTI_cstore])
364 #define push_optab (optab_table[OTI_push])
365 #define addcc_optab (optab_table[OTI_addcc])
367 #define reduc_smax_optab (optab_table[OTI_reduc_smax])
368 #define reduc_umax_optab (optab_table[OTI_reduc_umax])
369 #define reduc_smin_optab (optab_table[OTI_reduc_smin])
370 #define reduc_umin_optab (optab_table[OTI_reduc_umin])
371 #define reduc_splus_optab (optab_table[OTI_reduc_splus])
372 #define reduc_uplus_optab (optab_table[OTI_reduc_uplus])
374 #define ssum_widen_optab (optab_table[OTI_ssum_widen])
375 #define usum_widen_optab (optab_table[OTI_usum_widen])
376 #define sdot_prod_optab (optab_table[OTI_sdot_prod])
377 #define udot_prod_optab (optab_table[OTI_udot_prod])
379 #define vec_set_optab (optab_table[OTI_vec_set])
380 #define vec_extract_optab (optab_table[OTI_vec_extract])
381 #define vec_init_optab (optab_table[OTI_vec_init])
382 #define vec_shl_optab (optab_table[OTI_vec_shl])
383 #define vec_shr_optab (optab_table[OTI_vec_shr])
384 #define vec_realign_load_optab (optab_table[OTI_vec_realign_load])
386 #define powi_optab (optab_table[OTI_powi])
388 /* Conversion optabs have their own table and indexes. */
389 enum convert_optab_index
412 extern GTY(()) convert_optab convert_optab_table
[COI_MAX
];
414 #define sext_optab (convert_optab_table[COI_sext])
415 #define zext_optab (convert_optab_table[COI_zext])
416 #define trunc_optab (convert_optab_table[COI_trunc])
417 #define sfix_optab (convert_optab_table[COI_sfix])
418 #define ufix_optab (convert_optab_table[COI_ufix])
419 #define sfixtrunc_optab (convert_optab_table[COI_sfixtrunc])
420 #define ufixtrunc_optab (convert_optab_table[COI_ufixtrunc])
421 #define sfloat_optab (convert_optab_table[COI_sfloat])
422 #define ufloat_optab (convert_optab_table[COI_ufloat])
423 #define lrint_optab (convert_optab_table[COI_lrint])
424 #define lround_optab (convert_optab_table[COI_lround])
425 #define lfloor_optab (convert_optab_table[COI_lfloor])
426 #define lceil_optab (convert_optab_table[COI_lceil])
428 /* These arrays record the insn_code of insns that may be needed to
429 perform input and output reloads of special objects. They provide a
430 place to pass a scratch register. */
431 extern enum insn_code reload_in_optab
[NUM_MACHINE_MODES
];
432 extern enum insn_code reload_out_optab
[NUM_MACHINE_MODES
];
434 /* Contains the optab used for each rtx code. */
435 extern GTY(()) optab code_to_optab
[NUM_RTX_CODE
+ 1];
438 typedef rtx (*rtxfun
) (rtx
);
440 /* Indexed by the rtx-code for a conditional (e.g. EQ, LT,...)
441 gives the gen_function to make a branch to test that condition. */
443 extern rtxfun bcc_gen_fctn
[NUM_RTX_CODE
];
445 /* Indexed by the rtx-code for a conditional (e.g. EQ, LT,...)
446 gives the insn code to make a store-condition insn
447 to test that condition. */
449 extern enum insn_code setcc_gen_code
[NUM_RTX_CODE
];
451 #ifdef HAVE_conditional_move
452 /* Indexed by the machine mode, gives the insn code to make a conditional
455 extern enum insn_code movcc_gen_code
[NUM_MACHINE_MODES
];
458 /* Indexed by the machine mode, gives the insn code for vector conditional
461 extern enum insn_code vcond_gen_code
[NUM_MACHINE_MODES
];
462 extern enum insn_code vcondu_gen_code
[NUM_MACHINE_MODES
];
464 /* This array records the insn_code of insns to perform block moves. */
465 extern enum insn_code movmem_optab
[NUM_MACHINE_MODES
];
467 /* This array records the insn_code of insns to perform block sets. */
468 extern enum insn_code setmem_optab
[NUM_MACHINE_MODES
];
470 /* These arrays record the insn_code of two different kinds of insns
471 to perform block compares. */
472 extern enum insn_code cmpstr_optab
[NUM_MACHINE_MODES
];
473 extern enum insn_code cmpstrn_optab
[NUM_MACHINE_MODES
];
474 extern enum insn_code cmpmem_optab
[NUM_MACHINE_MODES
];
476 /* Synchronization primitives. This first set is atomic operation for
477 which we don't care about the resulting value. */
478 extern enum insn_code sync_add_optab
[NUM_MACHINE_MODES
];
479 extern enum insn_code sync_sub_optab
[NUM_MACHINE_MODES
];
480 extern enum insn_code sync_ior_optab
[NUM_MACHINE_MODES
];
481 extern enum insn_code sync_and_optab
[NUM_MACHINE_MODES
];
482 extern enum insn_code sync_xor_optab
[NUM_MACHINE_MODES
];
483 extern enum insn_code sync_nand_optab
[NUM_MACHINE_MODES
];
485 /* This second set is atomic operations in which we return the value
486 that existed in memory before the operation. */
487 extern enum insn_code sync_old_add_optab
[NUM_MACHINE_MODES
];
488 extern enum insn_code sync_old_sub_optab
[NUM_MACHINE_MODES
];
489 extern enum insn_code sync_old_ior_optab
[NUM_MACHINE_MODES
];
490 extern enum insn_code sync_old_and_optab
[NUM_MACHINE_MODES
];
491 extern enum insn_code sync_old_xor_optab
[NUM_MACHINE_MODES
];
492 extern enum insn_code sync_old_nand_optab
[NUM_MACHINE_MODES
];
494 /* This third set is atomic operations in which we return the value
495 that resulted after performing the operation. */
496 extern enum insn_code sync_new_add_optab
[NUM_MACHINE_MODES
];
497 extern enum insn_code sync_new_sub_optab
[NUM_MACHINE_MODES
];
498 extern enum insn_code sync_new_ior_optab
[NUM_MACHINE_MODES
];
499 extern enum insn_code sync_new_and_optab
[NUM_MACHINE_MODES
];
500 extern enum insn_code sync_new_xor_optab
[NUM_MACHINE_MODES
];
501 extern enum insn_code sync_new_nand_optab
[NUM_MACHINE_MODES
];
503 /* Atomic compare and swap. */
504 extern enum insn_code sync_compare_and_swap
[NUM_MACHINE_MODES
];
505 extern enum insn_code sync_compare_and_swap_cc
[NUM_MACHINE_MODES
];
507 /* Atomic exchange with acquire semantics. */
508 extern enum insn_code sync_lock_test_and_set
[NUM_MACHINE_MODES
];
510 /* Atomic clear with release semantics. */
511 extern enum insn_code sync_lock_release
[NUM_MACHINE_MODES
];
513 /* Define functions given in optabs.c. */
515 extern rtx
expand_widen_pattern_expr (tree exp
, rtx op0
, rtx op1
, rtx wide_op
,
516 rtx target
, int unsignedp
);
518 extern rtx
expand_ternary_op (enum machine_mode mode
, optab ternary_optab
,
519 rtx op0
, rtx op1
, rtx op2
, rtx target
,
522 /* Expand a binary operation given optab and rtx operands. */
523 extern rtx
expand_binop (enum machine_mode
, optab
, rtx
, rtx
, rtx
, int,
526 extern bool force_expand_binop (enum machine_mode
, optab
, rtx
, rtx
, rtx
, int,
529 /* Expand a binary operation with both signed and unsigned forms. */
530 extern rtx
sign_expand_binop (enum machine_mode
, optab
, optab
, rtx
, rtx
,
531 rtx
, int, enum optab_methods
);
533 /* Generate code to perform an operation on one operand with two results. */
534 extern int expand_twoval_unop (optab
, rtx
, rtx
, rtx
, int);
536 /* Generate code to perform an operation on two operands with two results. */
537 extern int expand_twoval_binop (optab
, rtx
, rtx
, rtx
, rtx
, int);
539 /* Generate code to perform an operation on two operands with two
540 results, using a library function. */
541 extern bool expand_twoval_binop_libfunc (optab
, rtx
, rtx
, rtx
, rtx
,
544 /* Expand a unary arithmetic operation given optab rtx operand. */
545 extern rtx
expand_unop (enum machine_mode
, optab
, rtx
, rtx
, int);
547 /* Expand the absolute value operation. */
548 extern rtx
expand_abs_nojump (enum machine_mode
, rtx
, rtx
, int);
549 extern rtx
expand_abs (enum machine_mode
, rtx
, rtx
, int, int);
551 /* Expand the copysign operation. */
552 extern rtx
expand_copysign (rtx
, rtx
, rtx
);
554 /* Generate an instruction with a given INSN_CODE with an output and
556 extern void emit_unop_insn (int, rtx
, rtx
, enum rtx_code
);
558 /* Emit code to perform a series of operations on a multi-word quantity, one
560 extern rtx
emit_no_conflict_block (rtx
, rtx
, rtx
, rtx
, rtx
);
562 /* Emit one rtl insn to compare two rtx's. */
563 extern void emit_cmp_insn (rtx
, rtx
, enum rtx_code
, rtx
, enum machine_mode
,
566 /* The various uses that a comparison can have; used by can_compare_p:
567 jumps, conditional moves, store flag operations. */
568 enum can_compare_purpose
575 /* Return the optab used for computing the given operation on the type
576 given by the second argument. */
577 extern optab
optab_for_tree_code (enum tree_code
, tree
);
579 /* Nonzero if a compare of mode MODE can be done straightforwardly
580 (without splitting it into pieces). */
581 extern int can_compare_p (enum rtx_code
, enum machine_mode
,
582 enum can_compare_purpose
);
584 /* Return the INSN_CODE to use for an extend operation. */
585 extern enum insn_code
can_extend_p (enum machine_mode
, enum machine_mode
, int);
587 /* Generate the body of an insn to extend Y (with mode MFROM)
588 into X (with mode MTO). Do zero-extension if UNSIGNEDP is nonzero. */
589 extern rtx
gen_extend_insn (rtx
, rtx
, enum machine_mode
,
590 enum machine_mode
, int);
592 /* Call this to reset the function entry for one optab. */
593 extern void set_optab_libfunc (optab
, enum machine_mode
, const char *);
594 extern void set_conv_libfunc (convert_optab
, enum machine_mode
,
595 enum machine_mode
, const char *);
597 /* Generate code for a FLOAT_EXPR. */
598 extern void expand_float (rtx
, rtx
, int);
600 /* Generate code for a FIX_EXPR. */
601 extern void expand_fix (rtx
, rtx
, int);
603 /* Generate code for float to integral conversion. */
604 extern bool expand_sfix_optab (rtx
, rtx
, convert_optab
);
606 /* Return tree if target supports vector operations for COND_EXPR. */
607 bool expand_vec_cond_expr_p (tree
, enum machine_mode
);
609 /* Generate code for VEC_COND_EXPR. */
610 extern rtx
expand_vec_cond_expr (tree
, rtx
);
612 /* Generate code for VEC_LSHIFT_EXPR and VEC_RSHIFT_EXPR. */
613 extern rtx
expand_vec_shift_expr (tree
, rtx
);
615 #endif /* GCC_OPTABS_H */