gcc/optabs.h

   1 /* Definitions for code generation pass of GNU compiler.
   2    Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
   3    Free Software Foundation, Inc.
   4
   5 This file is part of GCC.
   6
   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 3, or (at your option)
  10 any later version.
  11
  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.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21 #ifndef GCC_OPTABS_H
  22 #define GCC_OPTABS_H
  23
  24 #include "insn-codes.h"
  25
  26 /* Optabs are tables saying how to generate insn bodies
  27    for various machine modes and numbers of operands.
  28    Each optab applies to one operation.
  29
  30    For example, add_optab applies to addition.
  31
  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.
  35
  36    The `lib_call' slot is the name of the library function that
  37    can be used to perform the operation.
  38
  39    A few optabs, such as move_optab, are used by special code.  */
  40
  41 struct optab_handlers
  42 {
  43   enum insn_code insn_code;
  44 };
  45
  46 struct optab_d
  47 {
  48   enum rtx_code code;
  49   const char *libcall_basename;
  50   char libcall_suffix;
  51   void (*libcall_gen)(struct optab_d *, const char *name, char suffix,
  52                       enum machine_mode);
  53   struct optab_handlers handlers[NUM_MACHINE_MODES];
  54 };
  55 typedef struct optab_d * optab;
  56
  57 /* A convert_optab is for some sort of conversion operation between
  58    modes.  The first array index is the destination mode, the second
  59    is the source mode.  */
  60 struct convert_optab_d
  61 {
  62   enum rtx_code code;
  63   const char *libcall_basename;
  64   void (*libcall_gen)(struct convert_optab_d *, const char *name,
  65                       enum machine_mode,
  66                       enum machine_mode);
  67   struct optab_handlers handlers[NUM_MACHINE_MODES][NUM_MACHINE_MODES];
  68 };
  69 typedef struct convert_optab_d *convert_optab;
  70
  71 /* Given an enum insn_code, access the function to construct
  72    the body of that kind of insn.  */
  73 #define GEN_FCN(CODE) (insn_data[CODE].genfun)
  74
  75 /* Enumeration of valid indexes into optab_table.  */
  76 enum optab_index
  77 {
  78   /* Fixed-point operators with signed/unsigned saturation */
  79   OTI_ssadd,
  80   OTI_usadd,
  81   OTI_sssub,
  82   OTI_ussub,
  83   OTI_ssmul,
  84   OTI_usmul,
  85   OTI_ssdiv,
  86   OTI_usdiv,
  87   OTI_ssneg,
  88   OTI_usneg,
  89   OTI_ssashl,
  90   OTI_usashl,
  91
  92   OTI_add,
  93   OTI_addv,
  94   OTI_sub,
  95   OTI_subv,
  96
  97   /* Signed and fp multiply */
  98   OTI_smul,
  99   OTI_smulv,
 100   /* Signed multiply, return high word */
 101   OTI_smul_highpart,
 102   OTI_umul_highpart,
 103   /* Signed multiply with result one machine mode wider than args */
 104   OTI_smul_widen,
 105   OTI_umul_widen,
 106   /* Widening multiply of one unsigned and one signed operand.  */
 107   OTI_usmul_widen,
 108   /* Signed multiply and add with the result and addend one machine mode
 109      wider than the multiplicand and multiplier.  */
 110   OTI_smadd_widen,
 111   /* Unsigned multiply and add with the result and addend one machine mode
 112      wider than the multiplicand and multiplier.  */
 113   OTI_umadd_widen,
 114   /* Signed multiply and add with the result and addend one machine mode
 115      wider than the multiplicand and multiplier.
 116      All involved operations are saturating.  */
 117   OTI_ssmadd_widen,
 118   /* Unsigned multiply and add with the result and addend one machine mode
 119      wider than the multiplicand and multiplier.
 120      All involved operations are saturating.  */
 121   OTI_usmadd_widen,
 122   /* Signed multiply and subtract the result and minuend one machine mode
 123      wider than the multiplicand and multiplier.  */
 124   OTI_smsub_widen,
 125   /* Unsigned multiply and subtract the result and minuend one machine mode
 126      wider than the multiplicand and multiplier.  */
 127   OTI_umsub_widen,
 128   /* Signed multiply and subtract the result and minuend one machine mode
 129      wider than the multiplicand and multiplier.
 130      All involved operations are saturating.  */
 131   OTI_ssmsub_widen,
 132   /* Unsigned multiply and subtract the result and minuend one machine mode
 133      wider than the multiplicand and multiplier.
 134      All involved operations are saturating.  */
 135   OTI_usmsub_widen,
 136
 137   /* Signed divide */
 138   OTI_sdiv,
 139   OTI_sdivv,
 140   /* Signed divide-and-remainder in one */
 141   OTI_sdivmod,
 142   OTI_udiv,
 143   OTI_udivmod,
 144   /* Signed remainder */
 145   OTI_smod,
 146   OTI_umod,
 147   /* Floating point remainder functions */
 148   OTI_fmod,
 149   OTI_remainder,
 150   /* Convert float to integer in float fmt */
 151   OTI_ftrunc,
 152
 153   /* Logical and */
 154   OTI_and,
 155   /* Logical or */
 156   OTI_ior,
 157   /* Logical xor */
 158   OTI_xor,
 159
 160   /* Arithmetic shift left */
 161   OTI_ashl,
 162   /* Logical shift right */
 163   OTI_lshr,
 164   /* Arithmetic shift right */
 165   OTI_ashr,
 166   /* Rotate left */
 167   OTI_rotl,
 168   /* Rotate right */
 169   OTI_rotr,
 170
 171   /* Arithmetic shift left of vector by vector */
 172   OTI_vashl,
 173   /* Logical shift right of vector by vector */
 174   OTI_vlshr,
 175   /* Arithmetic shift right of vector by vector */
 176   OTI_vashr,
 177   /* Rotate left of vector by vector */
 178   OTI_vrotl,
 179   /* Rotate right of vector by vector */
 180   OTI_vrotr,
 181
 182   /* Signed and floating-point minimum value */
 183   OTI_smin,
 184   /* Signed and floating-point maximum value */
 185   OTI_smax,
 186   /* Unsigned minimum value */
 187   OTI_umin,
 188   /* Unsigned maximum value */
 189   OTI_umax,
 190   /* Power */
 191   OTI_pow,
 192   /* Arc tangent of y/x */
 193   OTI_atan2,
 194
 195   /* Move instruction.  */
 196   OTI_mov,
 197   /* Move, preserving high part of register.  */
 198   OTI_movstrict,
 199   /* Move, with a misaligned memory.  */
 200   OTI_movmisalign,
 201   /* Nontemporal store.  */
 202   OTI_storent,
 203
 204   /* Unary operations */
 205   /* Negation */
 206   OTI_neg,
 207   OTI_negv,
 208   /* Abs value */
 209   OTI_abs,
 210   OTI_absv,
 211   /* Byteswap */
 212   OTI_bswap,
 213   /* Bitwise not */
 214   OTI_one_cmpl,
 215   /* Bit scanning and counting */
 216   OTI_ffs,
 217   OTI_clz,
 218   OTI_ctz,
 219   OTI_popcount,
 220   OTI_parity,
 221   /* Square root */
 222   OTI_sqrt,
 223   /* Sine-Cosine */
 224   OTI_sincos,
 225   /* Sine */
 226   OTI_sin,
 227   /* Inverse sine */
 228   OTI_asin,
 229   /* Cosine */
 230   OTI_cos,
 231   /* Inverse cosine */
 232   OTI_acos,
 233   /* Exponential */
 234   OTI_exp,
 235   /* Base-10 Exponential */
 236   OTI_exp10,
 237   /* Base-2 Exponential */
 238   OTI_exp2,
 239   /* Exponential - 1*/
 240   OTI_expm1,
 241   /* Load exponent of a floating point number */
 242   OTI_ldexp,
 243   /* Multiply floating-point number by integral power of radix */
 244   OTI_scalb,
 245   /* Radix-independent exponent */
 246   OTI_logb,
 247   OTI_ilogb,
 248   /* Natural Logarithm */
 249   OTI_log,
 250   /* Base-10 Logarithm */
 251   OTI_log10,
 252   /* Base-2 Logarithm */
 253   OTI_log2,
 254   /* logarithm of 1 plus argument */
 255   OTI_log1p,
 256   /* Rounding functions */
 257   OTI_floor,
 258   OTI_ceil,
 259   OTI_btrunc,
 260   OTI_round,
 261   OTI_nearbyint,
 262   OTI_rint,
 263   /* Tangent */
 264   OTI_tan,
 265   /* Inverse tangent */
 266   OTI_atan,
 267   /* Copy sign */
 268   OTI_copysign,
 269   /* Signbit */
 270   OTI_signbit,
 271   /* Test for infinite value */
 272   OTI_isinf,
 273
 274   /* Compare insn; two operands.  Used only for libcalls.  */
 275   OTI_cmp,
 276   OTI_ucmp,
 277
 278   /* Floating point comparison optabs - used primarily for libfuncs */
 279   OTI_eq,
 280   OTI_ne,
 281   OTI_gt,
 282   OTI_ge,
 283   OTI_lt,
 284   OTI_le,
 285   OTI_unord,
 286
 287   /* String length */
 288   OTI_strlen,
 289
 290   /* Combined compare & jump/move/store flags/trap operations.  */
 291   OTI_cbranch,
 292   OTI_cmov,
 293   OTI_cstore,
 294   OTI_ctrap,
 295
 296   /* Push instruction.  */
 297   OTI_push,
 298
 299   /* Conditional add instruction.  */
 300   OTI_addcc,
 301
 302   /* Reduction operations on a vector operand.  */
 303   OTI_reduc_smax,
 304   OTI_reduc_umax,
 305   OTI_reduc_smin,
 306   OTI_reduc_umin,
 307   OTI_reduc_splus,
 308   OTI_reduc_uplus,
 309
 310   /* Summation, with result machine mode one or more wider than args.  */
 311   OTI_ssum_widen,
 312   OTI_usum_widen,
 313
 314   /* Dot product, with result machine mode one or more wider than args.  */
 315   OTI_sdot_prod,
 316   OTI_udot_prod,
 317
 318   /* Set specified field of vector operand.  */
 319   OTI_vec_set,
 320   /* Extract specified field of vector operand.  */
 321   OTI_vec_extract,
 322   /* Extract even/odd fields of vector operands.  */
 323   OTI_vec_extract_even,
 324   OTI_vec_extract_odd,
 325   /* Interleave fields of vector operands.  */
 326   OTI_vec_interleave_high,
 327   OTI_vec_interleave_low,
 328   /* Initialize vector operand.  */
 329   OTI_vec_init,
 330   /* Whole vector shift. The shift amount is in bits.  */
 331   OTI_vec_shl,
 332   OTI_vec_shr,
 333   /* Extract specified elements from vectors, for vector load.  */
 334   OTI_vec_realign_load,
 335   /* Widening multiplication.
 336      The high/low part of the resulting vector of products is returned.  */
 337   OTI_vec_widen_umult_hi,
 338   OTI_vec_widen_umult_lo,
 339   OTI_vec_widen_smult_hi,
 340   OTI_vec_widen_smult_lo,
 341   /* Extract and widen the high/low part of a vector of signed or
 342      floating point elements.  */
 343   OTI_vec_unpacks_hi,
 344   OTI_vec_unpacks_lo,
 345   /* Extract and widen the high/low part of a vector of unsigned
 346      elements.  */
 347   OTI_vec_unpacku_hi,
 348   OTI_vec_unpacku_lo,
 349
 350   /* Extract, convert to floating point and widen the high/low part of
 351      a vector of signed or unsigned integer elements.  */
 352   OTI_vec_unpacks_float_hi,
 353   OTI_vec_unpacks_float_lo,
 354   OTI_vec_unpacku_float_hi,
 355   OTI_vec_unpacku_float_lo,
 356
 357   /* Narrow (demote) and merge the elements of two vectors.  */
 358   OTI_vec_pack_trunc,
 359   OTI_vec_pack_usat,
 360   OTI_vec_pack_ssat,
 361
 362   /* Convert to signed/unsigned integer, narrow and merge elements
 363      of two vectors of floating point elements.  */
 364   OTI_vec_pack_sfix_trunc,
 365   OTI_vec_pack_ufix_trunc,
 366
 367   /* Perform a raise to the power of integer.  */
 368   OTI_powi,
 369
 370   OTI_MAX
 371 };
 372
 373 extern struct optab_d optab_table[OTI_MAX];
 374
 375 #define ssadd_optab (&optab_table[OTI_ssadd])
 376 #define usadd_optab (&optab_table[OTI_usadd])
 377 #define sssub_optab (&optab_table[OTI_sssub])
 378 #define ussub_optab (&optab_table[OTI_ussub])
 379 #define ssmul_optab (&optab_table[OTI_ssmul])
 380 #define usmul_optab (&optab_table[OTI_usmul])
 381 #define ssdiv_optab (&optab_table[OTI_ssdiv])
 382 #define usdiv_optab (&optab_table[OTI_usdiv])
 383 #define ssneg_optab (&optab_table[OTI_ssneg])
 384 #define usneg_optab (&optab_table[OTI_usneg])
 385 #define ssashl_optab (&optab_table[OTI_ssashl])
 386 #define usashl_optab (&optab_table[OTI_usashl])
 387
 388 #define add_optab (&optab_table[OTI_add])
 389 #define sub_optab (&optab_table[OTI_sub])
 390 #define smul_optab (&optab_table[OTI_smul])
 391 #define addv_optab (&optab_table[OTI_addv])
 392 #define subv_optab (&optab_table[OTI_subv])
 393 #define smul_highpart_optab (&optab_table[OTI_smul_highpart])
 394 #define umul_highpart_optab (&optab_table[OTI_umul_highpart])
 395 #define smul_widen_optab (&optab_table[OTI_smul_widen])
 396 #define umul_widen_optab (&optab_table[OTI_umul_widen])
 397 #define usmul_widen_optab (&optab_table[OTI_usmul_widen])
 398 #define smadd_widen_optab (&optab_table[OTI_smadd_widen])
 399 #define umadd_widen_optab (&optab_table[OTI_umadd_widen])
 400 #define ssmadd_widen_optab (&optab_table[OTI_ssmadd_widen])
 401 #define usmadd_widen_optab (&optab_table[OTI_usmadd_widen])
 402 #define smsub_widen_optab (&optab_table[OTI_smsub_widen])
 403 #define umsub_widen_optab (&optab_table[OTI_umsub_widen])
 404 #define ssmsub_widen_optab (&optab_table[OTI_ssmsub_widen])
 405 #define usmsub_widen_optab (&optab_table[OTI_usmsub_widen])
 406 #define sdiv_optab (&optab_table[OTI_sdiv])
 407 #define smulv_optab (&optab_table[OTI_smulv])
 408 #define sdivv_optab (&optab_table[OTI_sdivv])
 409 #define sdivmod_optab (&optab_table[OTI_sdivmod])
 410 #define udiv_optab (&optab_table[OTI_udiv])
 411 #define udivmod_optab (&optab_table[OTI_udivmod])
 412 #define smod_optab (&optab_table[OTI_smod])
 413 #define umod_optab (&optab_table[OTI_umod])
 414 #define fmod_optab (&optab_table[OTI_fmod])
 415 #define remainder_optab (&optab_table[OTI_remainder])
 416 #define ftrunc_optab (&optab_table[OTI_ftrunc])
 417 #define and_optab (&optab_table[OTI_and])
 418 #define ior_optab (&optab_table[OTI_ior])
 419 #define xor_optab (&optab_table[OTI_xor])
 420 #define ashl_optab (&optab_table[OTI_ashl])
 421 #define lshr_optab (&optab_table[OTI_lshr])
 422 #define ashr_optab (&optab_table[OTI_ashr])
 423 #define rotl_optab (&optab_table[OTI_rotl])
 424 #define rotr_optab (&optab_table[OTI_rotr])
 425 #define vashl_optab (&optab_table[OTI_vashl])
 426 #define vlshr_optab (&optab_table[OTI_vlshr])
 427 #define vashr_optab (&optab_table[OTI_vashr])
 428 #define vrotl_optab (&optab_table[OTI_vrotl])
 429 #define vrotr_optab (&optab_table[OTI_vrotr])
 430 #define smin_optab (&optab_table[OTI_smin])
 431 #define smax_optab (&optab_table[OTI_smax])
 432 #define umin_optab (&optab_table[OTI_umin])
 433 #define umax_optab (&optab_table[OTI_umax])
 434 #define pow_optab (&optab_table[OTI_pow])
 435 #define atan2_optab (&optab_table[OTI_atan2])
 436
 437 #define mov_optab (&optab_table[OTI_mov])
 438 #define movstrict_optab (&optab_table[OTI_movstrict])
 439 #define movmisalign_optab (&optab_table[OTI_movmisalign])
 440 #define storent_optab (&optab_table[OTI_storent])
 441
 442 #define neg_optab (&optab_table[OTI_neg])
 443 #define negv_optab (&optab_table[OTI_negv])
 444 #define abs_optab (&optab_table[OTI_abs])
 445 #define absv_optab (&optab_table[OTI_absv])
 446 #define one_cmpl_optab (&optab_table[OTI_one_cmpl])
 447 #define bswap_optab (&optab_table[OTI_bswap])
 448 #define ffs_optab (&optab_table[OTI_ffs])
 449 #define clz_optab (&optab_table[OTI_clz])
 450 #define ctz_optab (&optab_table[OTI_ctz])
 451 #define popcount_optab (&optab_table[OTI_popcount])
 452 #define parity_optab (&optab_table[OTI_parity])
 453 #define sqrt_optab (&optab_table[OTI_sqrt])
 454 #define sincos_optab (&optab_table[OTI_sincos])
 455 #define sin_optab (&optab_table[OTI_sin])
 456 #define asin_optab (&optab_table[OTI_asin])
 457 #define cos_optab (&optab_table[OTI_cos])
 458 #define acos_optab (&optab_table[OTI_acos])
 459 #define exp_optab (&optab_table[OTI_exp])
 460 #define exp10_optab (&optab_table[OTI_exp10])
 461 #define exp2_optab (&optab_table[OTI_exp2])
 462 #define expm1_optab (&optab_table[OTI_expm1])
 463 #define ldexp_optab (&optab_table[OTI_ldexp])
 464 #define scalb_optab (&optab_table[OTI_scalb])
 465 #define logb_optab (&optab_table[OTI_logb])
 466 #define ilogb_optab (&optab_table[OTI_ilogb])
 467 #define log_optab (&optab_table[OTI_log])
 468 #define log10_optab (&optab_table[OTI_log10])
 469 #define log2_optab (&optab_table[OTI_log2])
 470 #define log1p_optab (&optab_table[OTI_log1p])
 471 #define floor_optab (&optab_table[OTI_floor])
 472 #define ceil_optab (&optab_table[OTI_ceil])
 473 #define btrunc_optab (&optab_table[OTI_btrunc])
 474 #define round_optab (&optab_table[OTI_round])
 475 #define nearbyint_optab (&optab_table[OTI_nearbyint])
 476 #define rint_optab (&optab_table[OTI_rint])
 477 #define tan_optab (&optab_table[OTI_tan])
 478 #define atan_optab (&optab_table[OTI_atan])
 479 #define copysign_optab (&optab_table[OTI_copysign])
 480 #define signbit_optab (&optab_table[OTI_signbit])
 481 #define isinf_optab (&optab_table[OTI_isinf])
 482
 483 #define cmp_optab (&optab_table[OTI_cmp])
 484 #define ucmp_optab (&optab_table[OTI_ucmp])
 485
 486 #define eq_optab (&optab_table[OTI_eq])
 487 #define ne_optab (&optab_table[OTI_ne])
 488 #define gt_optab (&optab_table[OTI_gt])
 489 #define ge_optab (&optab_table[OTI_ge])
 490 #define lt_optab (&optab_table[OTI_lt])
 491 #define le_optab (&optab_table[OTI_le])
 492 #define unord_optab (&optab_table[OTI_unord])
 493
 494 #define strlen_optab (&optab_table[OTI_strlen])
 495
 496 #define cbranch_optab (&optab_table[OTI_cbranch])
 497 #define cmov_optab (&optab_table[OTI_cmov])
 498 #define cstore_optab (&optab_table[OTI_cstore])
 499 #define ctrap_optab (&optab_table[OTI_ctrap])
 500
 501 #define push_optab (&optab_table[OTI_push])
 502 #define addcc_optab (&optab_table[OTI_addcc])
 503
 504 #define reduc_smax_optab (&optab_table[OTI_reduc_smax])
 505 #define reduc_umax_optab (&optab_table[OTI_reduc_umax])
 506 #define reduc_smin_optab (&optab_table[OTI_reduc_smin])
 507 #define reduc_umin_optab (&optab_table[OTI_reduc_umin])
 508 #define reduc_splus_optab (&optab_table[OTI_reduc_splus])
 509 #define reduc_uplus_optab (&optab_table[OTI_reduc_uplus])
 510
 511 #define ssum_widen_optab (&optab_table[OTI_ssum_widen])
 512 #define usum_widen_optab (&optab_table[OTI_usum_widen])
 513 #define sdot_prod_optab (&optab_table[OTI_sdot_prod])
 514 #define udot_prod_optab (&optab_table[OTI_udot_prod])
 515
 516 #define vec_set_optab (&optab_table[OTI_vec_set])
 517 #define vec_extract_optab (&optab_table[OTI_vec_extract])
 518 #define vec_extract_even_optab (&optab_table[OTI_vec_extract_even])
 519 #define vec_extract_odd_optab (&optab_table[OTI_vec_extract_odd])
 520 #define vec_interleave_high_optab (&optab_table[OTI_vec_interleave_high])
 521 #define vec_interleave_low_optab (&optab_table[OTI_vec_interleave_low])
 522 #define vec_init_optab (&optab_table[OTI_vec_init])
 523 #define vec_shl_optab (&optab_table[OTI_vec_shl])
 524 #define vec_shr_optab (&optab_table[OTI_vec_shr])
 525 #define vec_realign_load_optab (&optab_table[OTI_vec_realign_load])
 526 #define vec_widen_umult_hi_optab (&optab_table[OTI_vec_widen_umult_hi])
 527 #define vec_widen_umult_lo_optab (&optab_table[OTI_vec_widen_umult_lo])
 528 #define vec_widen_smult_hi_optab (&optab_table[OTI_vec_widen_smult_hi])
 529 #define vec_widen_smult_lo_optab (&optab_table[OTI_vec_widen_smult_lo])
 530 #define vec_unpacks_hi_optab (&optab_table[OTI_vec_unpacks_hi])
 531 #define vec_unpacks_lo_optab (&optab_table[OTI_vec_unpacks_lo])
 532 #define vec_unpacku_hi_optab (&optab_table[OTI_vec_unpacku_hi])
 533 #define vec_unpacku_lo_optab (&optab_table[OTI_vec_unpacku_lo])
 534 #define vec_unpacks_float_hi_optab (&optab_table[OTI_vec_unpacks_float_hi])
 535 #define vec_unpacks_float_lo_optab (&optab_table[OTI_vec_unpacks_float_lo])
 536 #define vec_unpacku_float_hi_optab (&optab_table[OTI_vec_unpacku_float_hi])
 537 #define vec_unpacku_float_lo_optab (&optab_table[OTI_vec_unpacku_float_lo])
 538 #define vec_pack_trunc_optab (&optab_table[OTI_vec_pack_trunc])
 539 #define vec_pack_ssat_optab (&optab_table[OTI_vec_pack_ssat])
 540 #define vec_pack_usat_optab (&optab_table[OTI_vec_pack_usat])
 541 #define vec_pack_sfix_trunc_optab (&optab_table[OTI_vec_pack_sfix_trunc])
 542 #define vec_pack_ufix_trunc_optab (&optab_table[OTI_vec_pack_ufix_trunc])
 543
 544 #define powi_optab (&optab_table[OTI_powi])
 545
 546 /* Conversion optabs have their own table and indexes.  */
 547 enum convert_optab_index
 548 {
 549   COI_sext,
 550   COI_zext,
 551   COI_trunc,
 552
 553   COI_sfix,
 554   COI_ufix,
 555
 556   COI_sfixtrunc,
 557   COI_ufixtrunc,
 558
 559   COI_sfloat,
 560   COI_ufloat,
 561
 562   COI_lrint,
 563   COI_lround,
 564   COI_lfloor,
 565   COI_lceil,
 566
 567   COI_fract,
 568   COI_fractuns,
 569   COI_satfract,
 570   COI_satfractuns,
 571
 572   COI_MAX
 573 };
 574
 575 extern struct convert_optab_d convert_optab_table[COI_MAX];
 576
 577 #define sext_optab (&convert_optab_table[COI_sext])
 578 #define zext_optab (&convert_optab_table[COI_zext])
 579 #define trunc_optab (&convert_optab_table[COI_trunc])
 580 #define sfix_optab (&convert_optab_table[COI_sfix])
 581 #define ufix_optab (&convert_optab_table[COI_ufix])
 582 #define sfixtrunc_optab (&convert_optab_table[COI_sfixtrunc])
 583 #define ufixtrunc_optab (&convert_optab_table[COI_ufixtrunc])
 584 #define sfloat_optab (&convert_optab_table[COI_sfloat])
 585 #define ufloat_optab (&convert_optab_table[COI_ufloat])
 586 #define lrint_optab (&convert_optab_table[COI_lrint])
 587 #define lround_optab (&convert_optab_table[COI_lround])
 588 #define lfloor_optab (&convert_optab_table[COI_lfloor])
 589 #define lceil_optab (&convert_optab_table[COI_lceil])
 590 #define fract_optab (&convert_optab_table[COI_fract])
 591 #define fractuns_optab (&convert_optab_table[COI_fractuns])
 592 #define satfract_optab (&convert_optab_table[COI_satfract])
 593 #define satfractuns_optab (&convert_optab_table[COI_satfractuns])
 594
 595 /* These arrays record the insn_code of insns that may be needed to
 596    perform input and output reloads of special objects.  They provide a
 597    place to pass a scratch register.  */
 598 extern enum insn_code reload_in_optab[NUM_MACHINE_MODES];
 599 extern enum insn_code reload_out_optab[NUM_MACHINE_MODES];
 600
 601 /* Contains the optab used for each rtx code.  */
 602 extern optab code_to_optab[NUM_RTX_CODE + 1];
 603
 604 \f
 605 typedef rtx (*rtxfun) (rtx);
 606
 607 #ifdef HAVE_conditional_move
 608 /* Indexed by the machine mode, gives the insn code to make a conditional
 609    move insn.  */
 610
 611 extern enum insn_code movcc_gen_code[NUM_MACHINE_MODES];
 612 #endif
 613
 614 /* Indexed by the machine mode, gives the insn code for vector conditional
 615    operation.  */
 616
 617 extern enum insn_code vcond_gen_code[NUM_MACHINE_MODES];
 618 extern enum insn_code vcondu_gen_code[NUM_MACHINE_MODES];
 619
 620 /* This array records the insn_code of insns to perform block moves.  */
 621 extern enum insn_code movmem_optab[NUM_MACHINE_MODES];
 622
 623 /* This array records the insn_code of insns to perform block sets.  */
 624 extern enum insn_code setmem_optab[NUM_MACHINE_MODES];
 625
 626 /* These arrays record the insn_code of two different kinds of insns
 627    to perform block compares.  */
 628 extern enum insn_code cmpstr_optab[NUM_MACHINE_MODES];
 629 extern enum insn_code cmpstrn_optab[NUM_MACHINE_MODES];
 630 extern enum insn_code cmpmem_optab[NUM_MACHINE_MODES];
 631
 632 /* Synchronization primitives.  This first set is atomic operation for
 633    which we don't care about the resulting value.  */
 634 extern enum insn_code sync_add_optab[NUM_MACHINE_MODES];
 635 extern enum insn_code sync_sub_optab[NUM_MACHINE_MODES];
 636 extern enum insn_code sync_ior_optab[NUM_MACHINE_MODES];
 637 extern enum insn_code sync_and_optab[NUM_MACHINE_MODES];
 638 extern enum insn_code sync_xor_optab[NUM_MACHINE_MODES];
 639 extern enum insn_code sync_nand_optab[NUM_MACHINE_MODES];
 640
 641 /* This second set is atomic operations in which we return the value
 642    that existed in memory before the operation.  */
 643 extern enum insn_code sync_old_add_optab[NUM_MACHINE_MODES];
 644 extern enum insn_code sync_old_sub_optab[NUM_MACHINE_MODES];
 645 extern enum insn_code sync_old_ior_optab[NUM_MACHINE_MODES];
 646 extern enum insn_code sync_old_and_optab[NUM_MACHINE_MODES];
 647 extern enum insn_code sync_old_xor_optab[NUM_MACHINE_MODES];
 648 extern enum insn_code sync_old_nand_optab[NUM_MACHINE_MODES];
 649
 650 /* This third set is atomic operations in which we return the value
 651    that resulted after performing the operation.  */
 652 extern enum insn_code sync_new_add_optab[NUM_MACHINE_MODES];
 653 extern enum insn_code sync_new_sub_optab[NUM_MACHINE_MODES];
 654 extern enum insn_code sync_new_ior_optab[NUM_MACHINE_MODES];
 655 extern enum insn_code sync_new_and_optab[NUM_MACHINE_MODES];
 656 extern enum insn_code sync_new_xor_optab[NUM_MACHINE_MODES];
 657 extern enum insn_code sync_new_nand_optab[NUM_MACHINE_MODES];
 658
 659 /* Atomic compare and swap.  */
 660 extern enum insn_code sync_compare_and_swap[NUM_MACHINE_MODES];
 661
 662 /* Atomic exchange with acquire semantics.  */
 663 extern enum insn_code sync_lock_test_and_set[NUM_MACHINE_MODES];
 664
 665 /* Atomic clear with release semantics.  */
 666 extern enum insn_code sync_lock_release[NUM_MACHINE_MODES];
 667
 668 /* Define functions given in optabs.c.  */
 669
 670 extern rtx expand_widen_pattern_expr (tree exp, rtx op0, rtx op1, rtx wide_op,
 671                                       rtx target, int unsignedp);
 672
 673 extern rtx expand_ternary_op (enum machine_mode mode, optab ternary_optab,
 674                               rtx op0, rtx op1, rtx op2, rtx target,
 675                               int unsignedp);
 676
 677 /* Expand a binary operation given optab and rtx operands.  */
 678 extern rtx expand_binop (enum machine_mode, optab, rtx, rtx, rtx, int,
 679                          enum optab_methods);
 680
 681 extern bool force_expand_binop (enum machine_mode, optab, rtx, rtx, rtx, int,
 682                                 enum optab_methods);
 683
 684 /* Expand a binary operation with both signed and unsigned forms.  */
 685 extern rtx sign_expand_binop (enum machine_mode, optab, optab, rtx, rtx,
 686                               rtx, int, enum optab_methods);
 687
 688 /* Generate code to perform an operation on one operand with two results.  */
 689 extern int expand_twoval_unop (optab, rtx, rtx, rtx, int);
 690
 691 /* Generate code to perform an operation on two operands with two results.  */
 692 extern int expand_twoval_binop (optab, rtx, rtx, rtx, rtx, int);
 693
 694 /* Generate code to perform an operation on two operands with two
 695    results, using a library function.  */
 696 extern bool expand_twoval_binop_libfunc (optab, rtx, rtx, rtx, rtx,
 697                                          enum rtx_code);
 698
 699 /* Expand a unary arithmetic operation given optab rtx operand.  */
 700 extern rtx expand_unop (enum machine_mode, optab, rtx, rtx, int);
 701
 702 /* Expand the absolute value operation.  */
 703 extern rtx expand_abs_nojump (enum machine_mode, rtx, rtx, int);
 704 extern rtx expand_abs (enum machine_mode, rtx, rtx, int, int);
 705
 706 /* Expand the copysign operation.  */
 707 extern rtx expand_copysign (rtx, rtx, rtx);
 708
 709 /* Generate an instruction with a given INSN_CODE with an output and
 710    an input.  */
 711 extern void emit_unop_insn (int, rtx, rtx, enum rtx_code);
 712 extern bool maybe_emit_unop_insn (int, rtx, rtx, enum rtx_code);
 713
 714 /* An extra flag to control optab_for_tree_code's behavior.  This is needed to
 715    distinguish between machines with a vector shift that takes a scalar for the
 716    shift amount vs. machines that take a vector for the shift amount.  */
 717 enum optab_subtype
 718 {
 719   optab_default,
 720   optab_scalar,
 721   optab_vector
 722 };
 723
 724 /* Return the optab used for computing the given operation on the type given by
 725    the second argument.  The third argument distinguishes between the types of
 726    vector shifts and rotates */
 727 extern optab optab_for_tree_code (enum tree_code, const_tree, enum optab_subtype);
 728
 729 /* The various uses that a comparison can have; used by can_compare_p:
 730    jumps, conditional moves, store flag operations.  */
 731 enum can_compare_purpose
 732 {
 733   ccp_jump,
 734   ccp_cmov,
 735   ccp_store_flag
 736 };
 737
 738 /* Nonzero if a compare of mode MODE can be done straightforwardly
 739    (without splitting it into pieces).  */
 740 extern int can_compare_p (enum rtx_code, enum machine_mode,
 741                           enum can_compare_purpose);
 742
 743 /* Return the INSN_CODE to use for an extend operation.  */
 744 extern enum insn_code can_extend_p (enum machine_mode, enum machine_mode, int);
 745
 746 /* Generate the body of an insn to extend Y (with mode MFROM)
 747    into X (with mode MTO).  Do zero-extension if UNSIGNEDP is nonzero.  */
 748 extern rtx gen_extend_insn (rtx, rtx, enum machine_mode,
 749                             enum machine_mode, int);
 750
 751 /* Call this to reset the function entry for one optab.  */
 752 extern void set_optab_libfunc (optab, enum machine_mode, const char *);
 753 extern void set_conv_libfunc (convert_optab, enum machine_mode,
 754                               enum machine_mode, const char *);
 755
 756 /* Generate code for a FIXED_CONVERT_EXPR.  */
 757 extern void expand_fixed_convert (rtx, rtx, int, int);
 758
 759 /* Generate code for a FLOAT_EXPR.  */
 760 extern void expand_float (rtx, rtx, int);
 761
 762 /* Generate code for a FIX_EXPR.  */
 763 extern void expand_fix (rtx, rtx, int);
 764
 765 /* Generate code for float to integral conversion.  */
 766 extern bool expand_sfix_optab (rtx, rtx, convert_optab);
 767
 768 /* Return tree if target supports vector operations for COND_EXPR.  */
 769 bool expand_vec_cond_expr_p (tree, enum machine_mode);
 770
 771 /* Generate code for VEC_COND_EXPR.  */
 772 extern rtx expand_vec_cond_expr (tree, rtx);
 773
 774 /* Generate code for VEC_LSHIFT_EXPR and VEC_RSHIFT_EXPR.  */
 775 extern rtx expand_vec_shift_expr (tree, rtx);
 776
 777 #define optab_handler(optab,mode) (&(optab)->handlers[(int) (mode)])
 778 #define convert_optab_handler(optab,mode,mode2) \
 779         (&(optab)->handlers[(int) (mode)][(int) (mode2)])
 780
 781 extern rtx optab_libfunc (optab optab, enum machine_mode mode);
 782 extern rtx optab_libfunc (optab optab, enum machine_mode mode);
 783 extern rtx convert_optab_libfunc (convert_optab optab, enum machine_mode mode1,
 784                                   enum machine_mode mode2);
 785 #endif /* GCC_OPTABS_H */