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.
31 For example, add_optab applies to addition.
33 The insn_code slot is the enum insn_code that says how to
34 generate an insn for this operation on a particular machine mode.
35 It is CODE_FOR_nothing if there is no such insn on the target machine.
37 The `lib_call' slot is the name of the library function that
38 can be used to perform the operation.
40 A few optabs, such as move_optab and cmp_optab, are used
43 struct optab_handlers
GTY(())
45 enum insn_code insn_code
;
52 struct optab_handlers handlers
[NUM_MACHINE_MODES
];
54 typedef struct optab
* optab
;
56 /* A convert_optab is for some sort of conversion operation between
57 modes. The first array index is the destination mode, the second
58 is the source mode. */
59 struct convert_optab
GTY(())
62 struct optab_handlers handlers
[NUM_MACHINE_MODES
][NUM_MACHINE_MODES
];
64 typedef struct convert_optab
*convert_optab
;
66 /* Given an enum insn_code, access the function to construct
67 the body of that kind of insn. */
68 #define GEN_FCN(CODE) (insn_data[CODE].genfun)
70 /* Enumeration of valid indexes into optab_table. */
78 /* Signed and fp multiply */
81 /* Signed multiply, return high word */
84 /* Signed multiply with result one machine mode wider than args */
87 /* Widening multiply of one unsigned and one signed operand. */
89 /* Signed multiply and add with the result and addend one machine mode
90 wider than the multiplicand and multiplier. */
92 /* Unigned multiply and add with the result and addend one machine mode
93 wider than the multiplicand and multiplier. */
99 /* Signed divide-and-remainder in one */
103 /* Signed remainder */
106 /* Floating point remainder functions */
109 /* Convert float to integer in float fmt */
119 /* Arithmetic shift left */
121 /* Logical shift right */
123 /* Arithmetic shift right */
129 /* Signed and floating-point minimum value */
131 /* Signed and floating-point maximum value */
133 /* Unsigned minimum value */
135 /* Unsigned maximum value */
139 /* Arc tangent of y/x */
142 /* Move instruction. */
144 /* Move, preserving high part of register. */
146 /* Move, with a misaligned memory. */
149 /* Unary operations */
160 /* Bit scanning and counting */
180 /* Base-10 Exponential */
182 /* Base-2 Exponential */
186 /* Load exponent of a floating point number */
188 /* Multiply floating-point number by integral power of radix */
190 /* Radix-independent exponent */
193 /* Natural Logarithm */
195 /* Base-10 Logarithm */
197 /* Base-2 Logarithm */
199 /* logarithm of 1 plus argument */
201 /* Rounding functions */
210 /* Inverse tangent */
215 /* Test for infinite value */
218 /* Compare insn; two operands. */
220 /* Used only for libcalls for unsigned comparisons. */
222 /* tst insn; compare one operand against 0 */
225 /* Floating point comparison optabs - used primarily for libfuncs */
237 /* Combined compare & jump/store flags/move operations. */
242 /* Push instruction. */
245 /* Conditional add instruction. */
248 /* Reduction operations on a vector operand. */
256 /* Summation, with result machine mode one or more wider than args. */
260 /* Dot product, with result machine mode one or more wider than args. */
264 /* Set specified field of vector operand. */
266 /* Extract specified field of vector operand. */
268 /* Extract even/odd fields of vector operands. */
269 OTI_vec_extract_even
,
271 /* Interleave fields of vector operands. */
272 OTI_vec_interleave_high
,
273 OTI_vec_interleave_low
,
274 /* Initialize vector operand. */
276 /* Whole vector shift. The shift amount is in bits. */
279 /* Extract specified elements from vectors, for vector load. */
280 OTI_vec_realign_load
,
281 /* Widening multiplication.
282 The high/low part of the resulting vector of products is returned. */
283 OTI_vec_widen_umult_hi
,
284 OTI_vec_widen_umult_lo
,
285 OTI_vec_widen_smult_hi
,
286 OTI_vec_widen_smult_lo
,
287 /* Extract and widen the high/low part of a vector of signed or
288 floating point elements. */
291 /* Extract and widen the high/low part of a vector of unsigned
295 /* Narrow (demote) and merge the elements of two vectors. */
300 /* Perform a raise to the power of integer. */
306 extern GTY(()) optab optab_table
[OTI_MAX
];
308 #define add_optab (optab_table[OTI_add])
309 #define sub_optab (optab_table[OTI_sub])
310 #define smul_optab (optab_table[OTI_smul])
311 #define addv_optab (optab_table[OTI_addv])
312 #define subv_optab (optab_table[OTI_subv])
313 #define smul_highpart_optab (optab_table[OTI_smul_highpart])
314 #define umul_highpart_optab (optab_table[OTI_umul_highpart])
315 #define smul_widen_optab (optab_table[OTI_smul_widen])
316 #define umul_widen_optab (optab_table[OTI_umul_widen])
317 #define usmul_widen_optab (optab_table[OTI_usmul_widen])
318 #define smadd_widen_optab (optab_table[OTI_smadd_widen])
319 #define umadd_widen_optab (optab_table[OTI_umadd_widen])
320 #define sdiv_optab (optab_table[OTI_sdiv])
321 #define smulv_optab (optab_table[OTI_smulv])
322 #define sdivv_optab (optab_table[OTI_sdivv])
323 #define sdivmod_optab (optab_table[OTI_sdivmod])
324 #define udiv_optab (optab_table[OTI_udiv])
325 #define udivmod_optab (optab_table[OTI_udivmod])
326 #define smod_optab (optab_table[OTI_smod])
327 #define umod_optab (optab_table[OTI_umod])
328 #define fmod_optab (optab_table[OTI_fmod])
329 #define remainder_optab (optab_table[OTI_remainder])
330 #define ftrunc_optab (optab_table[OTI_ftrunc])
331 #define and_optab (optab_table[OTI_and])
332 #define ior_optab (optab_table[OTI_ior])
333 #define xor_optab (optab_table[OTI_xor])
334 #define ashl_optab (optab_table[OTI_ashl])
335 #define lshr_optab (optab_table[OTI_lshr])
336 #define ashr_optab (optab_table[OTI_ashr])
337 #define rotl_optab (optab_table[OTI_rotl])
338 #define rotr_optab (optab_table[OTI_rotr])
339 #define smin_optab (optab_table[OTI_smin])
340 #define smax_optab (optab_table[OTI_smax])
341 #define umin_optab (optab_table[OTI_umin])
342 #define umax_optab (optab_table[OTI_umax])
343 #define pow_optab (optab_table[OTI_pow])
344 #define atan2_optab (optab_table[OTI_atan2])
346 #define mov_optab (optab_table[OTI_mov])
347 #define movstrict_optab (optab_table[OTI_movstrict])
348 #define movmisalign_optab (optab_table[OTI_movmisalign])
350 #define neg_optab (optab_table[OTI_neg])
351 #define negv_optab (optab_table[OTI_negv])
352 #define abs_optab (optab_table[OTI_abs])
353 #define absv_optab (optab_table[OTI_absv])
354 #define one_cmpl_optab (optab_table[OTI_one_cmpl])
355 #define bswap_optab (optab_table[OTI_bswap])
356 #define ffs_optab (optab_table[OTI_ffs])
357 #define clz_optab (optab_table[OTI_clz])
358 #define ctz_optab (optab_table[OTI_ctz])
359 #define popcount_optab (optab_table[OTI_popcount])
360 #define parity_optab (optab_table[OTI_parity])
361 #define sqrt_optab (optab_table[OTI_sqrt])
362 #define sincos_optab (optab_table[OTI_sincos])
363 #define sin_optab (optab_table[OTI_sin])
364 #define asin_optab (optab_table[OTI_asin])
365 #define cos_optab (optab_table[OTI_cos])
366 #define acos_optab (optab_table[OTI_acos])
367 #define exp_optab (optab_table[OTI_exp])
368 #define exp10_optab (optab_table[OTI_exp10])
369 #define exp2_optab (optab_table[OTI_exp2])
370 #define expm1_optab (optab_table[OTI_expm1])
371 #define ldexp_optab (optab_table[OTI_ldexp])
372 #define scalb_optab (optab_table[OTI_scalb])
373 #define logb_optab (optab_table[OTI_logb])
374 #define ilogb_optab (optab_table[OTI_ilogb])
375 #define log_optab (optab_table[OTI_log])
376 #define log10_optab (optab_table[OTI_log10])
377 #define log2_optab (optab_table[OTI_log2])
378 #define log1p_optab (optab_table[OTI_log1p])
379 #define floor_optab (optab_table[OTI_floor])
380 #define ceil_optab (optab_table[OTI_ceil])
381 #define btrunc_optab (optab_table[OTI_btrunc])
382 #define round_optab (optab_table[OTI_round])
383 #define nearbyint_optab (optab_table[OTI_nearbyint])
384 #define rint_optab (optab_table[OTI_rint])
385 #define tan_optab (optab_table[OTI_tan])
386 #define atan_optab (optab_table[OTI_atan])
387 #define copysign_optab (optab_table[OTI_copysign])
389 #define isinf_optab (optab_table[OTI_isinf])
391 #define cmp_optab (optab_table[OTI_cmp])
392 #define ucmp_optab (optab_table[OTI_ucmp])
393 #define tst_optab (optab_table[OTI_tst])
395 #define eq_optab (optab_table[OTI_eq])
396 #define ne_optab (optab_table[OTI_ne])
397 #define gt_optab (optab_table[OTI_gt])
398 #define ge_optab (optab_table[OTI_ge])
399 #define lt_optab (optab_table[OTI_lt])
400 #define le_optab (optab_table[OTI_le])
401 #define unord_optab (optab_table[OTI_unord])
403 #define strlen_optab (optab_table[OTI_strlen])
405 #define cbranch_optab (optab_table[OTI_cbranch])
406 #define cmov_optab (optab_table[OTI_cmov])
407 #define cstore_optab (optab_table[OTI_cstore])
408 #define push_optab (optab_table[OTI_push])
409 #define addcc_optab (optab_table[OTI_addcc])
411 #define reduc_smax_optab (optab_table[OTI_reduc_smax])
412 #define reduc_umax_optab (optab_table[OTI_reduc_umax])
413 #define reduc_smin_optab (optab_table[OTI_reduc_smin])
414 #define reduc_umin_optab (optab_table[OTI_reduc_umin])
415 #define reduc_splus_optab (optab_table[OTI_reduc_splus])
416 #define reduc_uplus_optab (optab_table[OTI_reduc_uplus])
418 #define ssum_widen_optab (optab_table[OTI_ssum_widen])
419 #define usum_widen_optab (optab_table[OTI_usum_widen])
420 #define sdot_prod_optab (optab_table[OTI_sdot_prod])
421 #define udot_prod_optab (optab_table[OTI_udot_prod])
423 #define vec_set_optab (optab_table[OTI_vec_set])
424 #define vec_extract_optab (optab_table[OTI_vec_extract])
425 #define vec_extract_even_optab (optab_table[OTI_vec_extract_even])
426 #define vec_extract_odd_optab (optab_table[OTI_vec_extract_odd])
427 #define vec_interleave_high_optab (optab_table[OTI_vec_interleave_high])
428 #define vec_interleave_low_optab (optab_table[OTI_vec_interleave_low])
429 #define vec_init_optab (optab_table[OTI_vec_init])
430 #define vec_shl_optab (optab_table[OTI_vec_shl])
431 #define vec_shr_optab (optab_table[OTI_vec_shr])
432 #define vec_realign_load_optab (optab_table[OTI_vec_realign_load])
433 #define vec_widen_umult_hi_optab (optab_table[OTI_vec_widen_umult_hi])
434 #define vec_widen_umult_lo_optab (optab_table[OTI_vec_widen_umult_lo])
435 #define vec_widen_smult_hi_optab (optab_table[OTI_vec_widen_smult_hi])
436 #define vec_widen_smult_lo_optab (optab_table[OTI_vec_widen_smult_lo])
437 #define vec_unpacks_hi_optab (optab_table[OTI_vec_unpacks_hi])
438 #define vec_unpacks_lo_optab (optab_table[OTI_vec_unpacks_lo])
439 #define vec_unpacku_hi_optab (optab_table[OTI_vec_unpacku_hi])
440 #define vec_unpacku_lo_optab (optab_table[OTI_vec_unpacku_lo])
441 #define vec_pack_trunc_optab (optab_table[OTI_vec_pack_trunc])
442 #define vec_pack_ssat_optab (optab_table[OTI_vec_pack_ssat])
443 #define vec_pack_usat_optab (optab_table[OTI_vec_pack_usat])
445 #define powi_optab (optab_table[OTI_powi])
447 /* Conversion optabs have their own table and indexes. */
448 enum convert_optab_index
471 extern GTY(()) convert_optab convert_optab_table
[COI_MAX
];
473 #define sext_optab (convert_optab_table[COI_sext])
474 #define zext_optab (convert_optab_table[COI_zext])
475 #define trunc_optab (convert_optab_table[COI_trunc])
476 #define sfix_optab (convert_optab_table[COI_sfix])
477 #define ufix_optab (convert_optab_table[COI_ufix])
478 #define sfixtrunc_optab (convert_optab_table[COI_sfixtrunc])
479 #define ufixtrunc_optab (convert_optab_table[COI_ufixtrunc])
480 #define sfloat_optab (convert_optab_table[COI_sfloat])
481 #define ufloat_optab (convert_optab_table[COI_ufloat])
482 #define lrint_optab (convert_optab_table[COI_lrint])
483 #define lround_optab (convert_optab_table[COI_lround])
484 #define lfloor_optab (convert_optab_table[COI_lfloor])
485 #define lceil_optab (convert_optab_table[COI_lceil])
487 /* These arrays record the insn_code of insns that may be needed to
488 perform input and output reloads of special objects. They provide a
489 place to pass a scratch register. */
490 extern enum insn_code reload_in_optab
[NUM_MACHINE_MODES
];
491 extern enum insn_code reload_out_optab
[NUM_MACHINE_MODES
];
493 /* Contains the optab used for each rtx code. */
494 extern GTY(()) optab code_to_optab
[NUM_RTX_CODE
+ 1];
497 typedef rtx (*rtxfun
) (rtx
);
499 /* Indexed by the rtx-code for a conditional (e.g. EQ, LT,...)
500 gives the gen_function to make a branch to test that condition. */
502 extern rtxfun bcc_gen_fctn
[NUM_RTX_CODE
];
504 /* Indexed by the rtx-code for a conditional (e.g. EQ, LT,...)
505 gives the insn code to make a store-condition insn
506 to test that condition. */
508 extern enum insn_code setcc_gen_code
[NUM_RTX_CODE
];
510 #ifdef HAVE_conditional_move
511 /* Indexed by the machine mode, gives the insn code to make a conditional
514 extern enum insn_code movcc_gen_code
[NUM_MACHINE_MODES
];
517 /* Indexed by the machine mode, gives the insn code for vector conditional
520 extern enum insn_code vcond_gen_code
[NUM_MACHINE_MODES
];
521 extern enum insn_code vcondu_gen_code
[NUM_MACHINE_MODES
];
523 /* This array records the insn_code of insns to perform block moves. */
524 extern enum insn_code movmem_optab
[NUM_MACHINE_MODES
];
526 /* This array records the insn_code of insns to perform block sets. */
527 extern enum insn_code setmem_optab
[NUM_MACHINE_MODES
];
529 /* These arrays record the insn_code of two different kinds of insns
530 to perform block compares. */
531 extern enum insn_code cmpstr_optab
[NUM_MACHINE_MODES
];
532 extern enum insn_code cmpstrn_optab
[NUM_MACHINE_MODES
];
533 extern enum insn_code cmpmem_optab
[NUM_MACHINE_MODES
];
535 /* Synchronization primitives. This first set is atomic operation for
536 which we don't care about the resulting value. */
537 extern enum insn_code sync_add_optab
[NUM_MACHINE_MODES
];
538 extern enum insn_code sync_sub_optab
[NUM_MACHINE_MODES
];
539 extern enum insn_code sync_ior_optab
[NUM_MACHINE_MODES
];
540 extern enum insn_code sync_and_optab
[NUM_MACHINE_MODES
];
541 extern enum insn_code sync_xor_optab
[NUM_MACHINE_MODES
];
542 extern enum insn_code sync_nand_optab
[NUM_MACHINE_MODES
];
544 /* This second set is atomic operations in which we return the value
545 that existed in memory before the operation. */
546 extern enum insn_code sync_old_add_optab
[NUM_MACHINE_MODES
];
547 extern enum insn_code sync_old_sub_optab
[NUM_MACHINE_MODES
];
548 extern enum insn_code sync_old_ior_optab
[NUM_MACHINE_MODES
];
549 extern enum insn_code sync_old_and_optab
[NUM_MACHINE_MODES
];
550 extern enum insn_code sync_old_xor_optab
[NUM_MACHINE_MODES
];
551 extern enum insn_code sync_old_nand_optab
[NUM_MACHINE_MODES
];
553 /* This third set is atomic operations in which we return the value
554 that resulted after performing the operation. */
555 extern enum insn_code sync_new_add_optab
[NUM_MACHINE_MODES
];
556 extern enum insn_code sync_new_sub_optab
[NUM_MACHINE_MODES
];
557 extern enum insn_code sync_new_ior_optab
[NUM_MACHINE_MODES
];
558 extern enum insn_code sync_new_and_optab
[NUM_MACHINE_MODES
];
559 extern enum insn_code sync_new_xor_optab
[NUM_MACHINE_MODES
];
560 extern enum insn_code sync_new_nand_optab
[NUM_MACHINE_MODES
];
562 /* Atomic compare and swap. */
563 extern enum insn_code sync_compare_and_swap
[NUM_MACHINE_MODES
];
564 extern enum insn_code sync_compare_and_swap_cc
[NUM_MACHINE_MODES
];
566 /* Atomic exchange with acquire semantics. */
567 extern enum insn_code sync_lock_test_and_set
[NUM_MACHINE_MODES
];
569 /* Atomic clear with release semantics. */
570 extern enum insn_code sync_lock_release
[NUM_MACHINE_MODES
];
572 /* Define functions given in optabs.c. */
574 extern rtx
expand_widen_pattern_expr (tree exp
, rtx op0
, rtx op1
, rtx wide_op
,
575 rtx target
, int unsignedp
);
577 extern rtx
expand_ternary_op (enum machine_mode mode
, optab ternary_optab
,
578 rtx op0
, rtx op1
, rtx op2
, rtx target
,
581 /* Expand a binary operation given optab and rtx operands. */
582 extern rtx
expand_binop (enum machine_mode
, optab
, rtx
, rtx
, rtx
, int,
585 extern bool force_expand_binop (enum machine_mode
, optab
, rtx
, rtx
, rtx
, int,
588 /* Expand a binary operation with both signed and unsigned forms. */
589 extern rtx
sign_expand_binop (enum machine_mode
, optab
, optab
, rtx
, rtx
,
590 rtx
, int, enum optab_methods
);
592 /* Generate code to perform an operation on one operand with two results. */
593 extern int expand_twoval_unop (optab
, rtx
, rtx
, rtx
, int);
595 /* Generate code to perform an operation on two operands with two results. */
596 extern int expand_twoval_binop (optab
, rtx
, rtx
, rtx
, rtx
, int);
598 /* Generate code to perform an operation on two operands with two
599 results, using a library function. */
600 extern bool expand_twoval_binop_libfunc (optab
, rtx
, rtx
, rtx
, rtx
,
603 /* Expand a unary arithmetic operation given optab rtx operand. */
604 extern rtx
expand_unop (enum machine_mode
, optab
, rtx
, rtx
, int);
606 /* Expand the absolute value operation. */
607 extern rtx
expand_abs_nojump (enum machine_mode
, rtx
, rtx
, int);
608 extern rtx
expand_abs (enum machine_mode
, rtx
, rtx
, int, int);
610 /* Expand the copysign operation. */
611 extern rtx
expand_copysign (rtx
, rtx
, rtx
);
613 /* Generate an instruction with a given INSN_CODE with an output and
615 extern void emit_unop_insn (int, rtx
, rtx
, enum rtx_code
);
617 /* Emit code to perform a series of operations on a multi-word quantity, one
619 extern rtx
emit_no_conflict_block (rtx
, rtx
, rtx
, rtx
, rtx
);
621 /* Emit one rtl insn to compare two rtx's. */
622 extern void emit_cmp_insn (rtx
, rtx
, enum rtx_code
, rtx
, enum machine_mode
,
625 /* The various uses that a comparison can have; used by can_compare_p:
626 jumps, conditional moves, store flag operations. */
627 enum can_compare_purpose
634 /* Return the optab used for computing the given operation on the type
635 given by the second argument. */
636 extern optab
optab_for_tree_code (enum tree_code
, tree
);
638 /* Nonzero if a compare of mode MODE can be done straightforwardly
639 (without splitting it into pieces). */
640 extern int can_compare_p (enum rtx_code
, enum machine_mode
,
641 enum can_compare_purpose
);
643 /* Return the INSN_CODE to use for an extend operation. */
644 extern enum insn_code
can_extend_p (enum machine_mode
, enum machine_mode
, int);
646 /* Generate the body of an insn to extend Y (with mode MFROM)
647 into X (with mode MTO). Do zero-extension if UNSIGNEDP is nonzero. */
648 extern rtx
gen_extend_insn (rtx
, rtx
, enum machine_mode
,
649 enum machine_mode
, int);
651 /* Call this to reset the function entry for one optab. */
652 extern void set_optab_libfunc (optab
, enum machine_mode
, const char *);
653 extern void set_conv_libfunc (convert_optab
, enum machine_mode
,
654 enum machine_mode
, const char *);
656 /* Generate code for a FLOAT_EXPR. */
657 extern void expand_float (rtx
, rtx
, int);
659 /* Generate code for a FIX_EXPR. */
660 extern void expand_fix (rtx
, rtx
, int);
662 /* Generate code for float to integral conversion. */
663 extern bool expand_sfix_optab (rtx
, rtx
, convert_optab
);
665 /* Return tree if target supports vector operations for COND_EXPR. */
666 bool expand_vec_cond_expr_p (tree
, enum machine_mode
);
668 /* Generate code for VEC_COND_EXPR. */
669 extern rtx
expand_vec_cond_expr (tree
, rtx
);
671 /* Generate code for VEC_LSHIFT_EXPR and VEC_RSHIFT_EXPR. */
672 extern rtx
expand_vec_shift_expr (tree
, rtx
);
674 #endif /* GCC_OPTABS_H */