gcc/config/csky/csky_insn_fpuv3.md

   1 ;; C-SKY FPUV3 instruction descriptions.
   2 ;; Copyright (C) 2018-2022 Free Software Foundation, Inc.
   3 ;; Contributed by C-SKY Microsystems and Mentor Graphics.
   4 ;;
   5 ;; This file is part of GCC.
   6 ;;
   7 ;; GCC is free software; you can redistribute it and/or modify it
   8 ;; 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, but
  13 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
  14 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 ;; 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 (define_c_enum "unspec" [
  22   UNSPEC_MAXNM_F3
  23   UNSPEC_MINNM_F3
  24 ])
  25
  26 ;; -------------------------------------------------------------------------
  27 ;; Float mov instructions
  28 ;; -------------------------------------------------------------------------
  29
  30 (define_insn "*fpv3_movhf"
  31   [(set (match_operand:HF 0 "nonimmediate_operand" "=r,r,v,r,m,r,Q,v,v,v, v")
  32         (match_operand:HF 1 "general_operand"      " r,F,r,v,r,m,v,Q,v,W,Dv"))]
  33   "CSKY_ISA_FEATURE(fpv3_hf)"
  34   "*
  35   switch (which_alternative)
  36     {
  37     case 2:
  38       return \"fmtvr.16\\t%0, %1\";
  39     case 3:
  40       return \"fmfvr.16\\t%0, %1\";
  41     case 6:
  42     case 7:
  43     case 9:
  44       return fpuv3_output_move(operands);
  45     case 8:
  46       return \"fmov.16\\t%0, %1\";
  47     case 10:
  48       return \"fmovi.16\\t%0, %1\";
  49     case 1:
  50       {
  51         long bits;
  52         rtx ops[4];
  53
  54         bits = real_to_target (NULL, CONST_DOUBLE_REAL_VALUE (operands[1]), HFmode);
  55         ops[0] = operands[0];
  56         ops[1] = GEN_INT (bits);
  57
  58         output_asm_insn (\"lrw\\t%0, %1\", ops);
  59         return \"\";
  60       }
  61     default:
  62       return csky_output_move(insn, operands, HFmode);
  63     }
  64   "
  65 )
  66
  67 (define_insn "*fpv3_movsf"
  68   [(set (match_operand:SF 0 "nonimmediate_operand" "=r,r, r,m,v,r,Q,v,v,v, v")
  69         (match_operand:SF 1 "general_operand"      " r,m,mF,r,r,v,v,Q,v,W,Dv"))]
  70   "CSKY_ISA_FEATURE(fpv3_sf)"
  71   "*
  72   switch (which_alternative)
  73     {
  74     case 4:
  75       return \"fmtvr.32.1\\t%0, %1\";
  76     case 5:
  77       return \"fmfvr.32.1\\t%0, %1\";
  78     case 6:
  79     case 7:
  80     case 9:
  81       return fpuv3_output_move(operands);
  82     case 8:
  83       return \"fmov.32\\t%0, %1\";
  84     case 10:
  85       return \"fmovi.32\\t%0, %1\";
  86     default:
  87       return csky_output_move(insn, operands, SFmode);
  88     }
  89   "
  90 )
  91
  92 (define_insn "*fpv3_movdf"
  93   [(set (match_operand:DF 0 "nonimmediate_operand" "=r, v,?r,Q,v,v,v, v,r, r,Y")
  94         (match_operand:DF 1 "general_operand"      " r,?r, v,v,Q,v,m,Dv,Y,YF,r"))]
  95   "CSKY_ISA_FEATURE(fpv3_df)"
  96   "*
  97   switch (which_alternative)
  98     {
  99     case 1:
 100       if (TARGET_BIG_ENDIAN)
 101         return \"fmtvr.64\\t%0, %R1, %1\";
 102       return \"fmtvr.64\\t%0, %1, %R1\";
 103     case 2:
 104       if (TARGET_BIG_ENDIAN)
 105         return \"fmfvr.64\\t%R0, %0, %1\";
 106       return \"fmfvr.64\\t%0, %R0, %1\";
 107     case 3:
 108     case 4:
 109     case 6:
 110       return fpuv3_output_move(operands);
 111     case 5:
 112       return \"fmov.64\\t%0, %1\";
 113     case 7:
 114       return \"fmovi.64\\t%0, %1\";
 115     default:
 116       return csky_output_movedouble(operands, DFmode);
 117     }
 118   "
 119 )
 120
 121 ;; -------------------------------------------------------------------------
 122 ;; Float Mul instructions
 123 ;; -------------------------------------------------------------------------
 124
 125 (define_insn "*fpv3_mul<mode>3"
 126   [(set (match_operand:F3ANY          0 "register_operand" "=v")
 127         (mult:F3ANY (match_operand:F3ANY  1 "register_operand" " v")
 128                     (match_operand:F3ANY  2 "register_operand" " v")))]
 129   "CSKY_ISA_FEATURE(fpv3_<mode>)"
 130   "fmul.<f3t>\t%0, %1, %2"
 131 )
 132
 133 ;; -------------------------------------------------------------------------
 134 ;; Float Muladd and mulsub instructions
 135 ;; -------------------------------------------------------------------------
 136
 137 (define_insn "*fpv3_mula<mode>3"
 138   [(set (match_operand:F3ANY          0 "register_operand" "+v")
 139         (plus:F3ANY (mult:F3ANY (match_operand:F3ANY  1 "register_operand" " v")
 140                                 (match_operand:F3ANY  2 "register_operand" " v"))
 141                     (match_dup 0)))]
 142   "CSKY_ISA_FEATURE(fpv3_<mode>)"
 143   "fmula.<f3t>\t%0, %1, %2"
 144 )
 145
 146 (define_insn "*fpv3_muls<mode>3"
 147   [(set (match_operand:F3ANY          0 "register_operand" "+v")
 148         (minus:F3ANY (match_dup 0)
 149                      (mult:F3ANY (match_operand:F3ANY  1 "register_operand" " v")
 150                                  (match_operand:F3ANY  2 "register_operand" " v"))))]
 151   "CSKY_ISA_FEATURE(fpv3_<mode>)"
 152   "fmuls.<f3t>\t%0, %1, %2"
 153 )
 154
 155 ;; -------------------------------------------------------------------------
 156 ;; Float fmula/fmuls/fnmula/fnmuls instructions
 157 ;; -------------------------------------------------------------------------
 158
 159 (define_insn "*fpv3_fmuls_<mode>4"
 160   [(set (match_operand:F3ANY          0 "register_operand" "=v")
 161         (fma:F3ANY (neg:F3ANY (match_operand:F3ANY  1 "register_operand" "v"))
 162                    (match_operand:F3ANY   2 "register_operand" "v")
 163                    (match_operand:F3ANY   3 "register_operand"  "0")))]
 164   "CSKY_ISA_FEATURE(fpv3_<mode>)"
 165   "ffmuls.<f3t>\t%0, %1, %2"
 166 )
 167
 168 (define_insn "*fpv3_fmula_<mode>4"
 169   [(set (match_operand:F3ANY        0 "register_operand" "=v")
 170         (fma:F3ANY (match_operand:F3ANY 1 "register_operand" " v")
 171                    (match_operand:F3ANY 2 "register_operand" " v")
 172                    (match_operand:F3ANY 3 "register_operand" "0")))]
 173   "CSKY_ISA_FEATURE(fpv3_<mode>)"
 174   "ffmula.<f3t>\t%0, %1, %2"
 175 )
 176
 177 (define_insn "*fpv3_fnmula_<mode>4"
 178   [(set (match_operand:F3ANY          0 "register_operand" "=v")
 179         (neg: F3ANY (fma:F3ANY (match_operand:F3ANY  1 "register_operand" " v")
 180                                (match_operand:F3ANY  2 "register_operand" " v")
 181                                (match_operand:F3ANY  3 "register_operand" "0"))))]
 182   "CSKY_ISA_FEATURE(fpv3_<mode>)"
 183   "ffnmula.<f3t>\t%0, %1, %2"
 184 )
 185
 186 (define_insn "*fpv3_fnmuls_<mode>4"
 187   [(set (match_operand:F3ANY          0 "register_operand" "=v")
 188         (fma:F3ANY (match_operand:F3ANY  1 "register_operand" " v")
 189                    (match_operand:F3ANY  2 "register_operand" " v")
 190                    (neg:F3ANY (match_operand:F3ANY  3 "register_operand" "0"))))]
 191   "CSKY_ISA_FEATURE(fpv3_sf)"
 192   "ffnmuls.<f3t>\t%0, %1, %2"
 193 )
 194
 195 ;; -------------------------------------------------------------------------
 196 ;; Float div/recipe/sqrt instructions
 197 ;; -------------------------------------------------------------------------
 198
 199 (define_insn "*fpv3_div<mode>3"
 200   [(set (match_operand:F3ANY          0 "register_operand" "=v")
 201         (div:F3ANY (match_operand:F3ANY   1 "register_operand" " v")
 202                    (match_operand:F3ANY   2 "register_operand" " v")))]
 203   "CSKY_ISA_FEATURE(fpv3_<mode>)"
 204   "fdiv.<f3t>\t%0, %1, %2"
 205 )
 206
 207 (define_insn "*fpv3_recip<mode>3"
 208   [(set (match_operand:F3ANY         0 "register_operand" "=v")
 209         (div:F3ANY (match_operand:F3ANY  1 "csky_const_float1_operand" " i")
 210                    (match_operand:F3ANY  2 "register_operand" " v")))]
 211   "CSKY_ISA_FEATURE(fpv3_<mode>)"
 212   "frecip.<f3t>\t%0, %2"
 213 )
 214
 215 (define_insn "*fpv3_sqrt<mode>2"
 216   [(set (match_operand:F3ANY          0 "register_operand" "=v")
 217         (sqrt:F3ANY (match_operand:F3ANY  1 "register_operand" " v")))]
 218   "CSKY_ISA_FEATURE(fpv3_<mode>)"
 219   "fsqrt.<f3t>\t%0, %1"
 220 )
 221
 222 ;; -------------------------------------------------------------------------
 223 ;; Float fmax/fmin instructions
 224 ;; -------------------------------------------------------------------------
 225
 226 (define_insn "fmax<mode>3"
 227   [(set (match_operand:F3ANY             0 "register_operand" "=v")
 228         (unspec:F3ANY [(match_operand:F3ANY  1 "register_operand" " v")
 229                        (match_operand:F3ANY  2 "register_operand" " v")]
 230                       UNSPEC_MAXNM_F3))]
 231   "CSKY_ISA_FEATURE(fpv3_<mode>)"
 232   "fmaxnm.<f3t>\t%0, %1, %2"
 233 )
 234
 235 (define_insn "fmin<mode>3"
 236   [(set (match_operand:F3ANY             0 "register_operand" "=v")
 237         (unspec:F3ANY [(match_operand:F3ANY  1 "register_operand" " v")
 238                        (match_operand:F3ANY  2 "register_operand" " v")]
 239                       UNSPEC_MINNM_F3))]
 240   "CSKY_ISA_FEATURE(fpv3_<mode>)"
 241   "fminnm.<f3t>\t%0, %1, %2"
 242 )
 243
 244 ;; -------------------------------------------------------------------------
 245 ;; Float compare instructions
 246 ;; -------------------------------------------------------------------------
 247
 248 (define_insn "*fpv3_<zero_inst>_<mode>3"
 249   [(set (reg:CC CSKY_CC_REGNUM)
 250         (FCMPZ:CC (match_operand:F3ANY 0 "register_operand" "v")
 251                   (match_operand:F3ANY 1 "csky_const_float0_operand" "i")))]
 252    "CSKY_ISA_FEATURE(fpv3_<mode>)"
 253    "fcmp<zero_inst>.<f3t>\t%0"
 254 )
 255
 256 (define_insn "*fpv3_<reg_inst>_<mode>3"
 257   [(set (reg:CC CSKY_CC_REGNUM)
 258         (FCMP:CC (match_operand:F3ANY 0 "register_operand" "v")
 259                  (match_operand:F3ANY 1 "register_operand" "v")))]
 260    "CSKY_ISA_FEATURE(fpv3_<mode>)"
 261    "fcmp<reg_inst>.<f3t>\t%0, %1"
 262 )
 263
 264 (define_insn "*fpv3_gt<mode>3"
 265   [(set (reg:CC CSKY_CC_REGNUM)
 266         (gt:CC (match_operand:F3ANY 0 "register_operand" "v")
 267                (match_operand:F3ANY 1 "register_operand" "v")))]
 268    "CSKY_ISA_FEATURE(fpv3_<mode>)"
 269    "fcmplt.<f3t>\t%1, %0"
 270 )
 271
 272 (define_insn "*fpv3_le<mode>3"
 273   [(set (reg:CC CSKY_CC_REGNUM)
 274         (le:CC (match_operand:F3ANY 0 "register_operand" "v")
 275                (match_operand:F3ANY 1 "register_operand" "v")))]
 276    "CSKY_ISA_FEATURE(fpv3_<mode>)"
 277    "fcmphs.<f3t>\t%1, %0"
 278 )
 279
 280 (define_insn "*fpv3_unordered"
 281   [(set (reg:CC CSKY_CC_REGNUM)
 282         (unordered:CC (match_operand:F3ANY 0 "register_operand" "v")
 283                       (match_operand:F3ANY 1 "register_operand" "v")))]
 284   "CSKY_ISA_FEATURE(fpv3_<mode>)"
 285   "fcmpuo.<f3t>\t%0, %1")
 286
 287 (define_insn "*fpv3_unordered_zero"
 288   [(set (reg:CC CSKY_CC_REGNUM)
 289         (unordered:CC (match_operand:F3ANY 0 "register_operand" "v")
 290                       (match_operand:F3ANY 1 "csky_const_float0_operand" "i")))]
 291   "CSKY_ISA_FEATURE(fpv3_<mode>)"
 292   "fcmpuoz.<f3t>\t%0")
 293
 294 ;; -------------------------------------------------------------------------
 295 ;; Float ADD instructions
 296 ;; -------------------------------------------------------------------------
 297
 298 (define_insn "*fpv3_add<mode>3"
 299   [(set (match_operand:F3ANY          0 "register_operand" "=v")
 300         (plus:F3ANY (match_operand:F3ANY  1 "register_operand" " v")
 301                     (match_operand:F3ANY  2 "register_operand" " v")))]
 302   "CSKY_ISA_FEATURE(fpv3_<mode>)"
 303   "fadd.<f3t>\t%0, %1, %2"
 304 )
 305
 306 ;; -------------------------------------------------------------------------
 307 ;; Float SUB instructions
 308 ;; -------------------------------------------------------------------------
 309
 310 (define_insn "*fpv3_sub<mode>3"
 311   [(set (match_operand:F3ANY           0 "register_operand" "=v")
 312         (minus:F3ANY (match_operand:F3ANY  1 "register_operand" " v")
 313                      (match_operand:F3ANY  2 "register_operand" " v")))]
 314   "CSKY_ISA_FEATURE(fpv3_<mode>)"
 315   "fsub.<f3t>\t%0, %1, %2"
 316 )
 317
 318 ;; -------------------------------------------------------------------------
 319 ;; Float NEG instructions
 320 ;; -------------------------------------------------------------------------
 321
 322 (define_insn "*fpv3_neg<mode>2"
 323   [(set (match_operand:F3ANY         0 "register_operand" "=v")
 324         (neg:F3ANY (match_operand:F3ANY  1 "register_operand" " v")))]
 325   "CSKY_ISA_FEATURE(fpv3_<mode>)"
 326   "fneg.<f3t>\t%0, %1"
 327 )
 328
 329 ;; -------------------------------------------------------------------------
 330 ;; Float ABS instructions
 331 ;; -------------------------------------------------------------------------
 332
 333 (define_insn "*fpv3_abs<mode>2"
 334   [(set (match_operand:F3ANY         0 "register_operand" "=v")
 335         (abs:F3ANY (match_operand:F3ANY  1 "register_operand" " v")))]
 336   "CSKY_ISA_FEATURE(fpv3_<mode>)"
 337   "fabs.<f3t>\t%0, %1"
 338 )
 339
 340 ;; -------------------------------------------------------------------------
 341 ;; Float common convert instructions
 342 ;; -------------------------------------------------------------------------
 343
 344 ;; SF <- HF
 345 (define_insn "*fpv3_extendhfsf2"
 346   [(set (match_operand:SF                 0 "register_operand" "=v")
 347         (float_extend:SF (match_operand:HF 1 "register_operand" "v")))]
 348   "CSKY_ISA_FEATURE(fpv3_hf)"
 349   "fhtos\t%0, %1")
 350
 351 ;; HF <- SF
 352 (define_insn "*fpv3_truncsfhf2"
 353   [(set (match_operand:HF                    0 "register_operand" "=v")
 354         (float_truncate:HF (match_operand:SF 1 "register_operand" "v")))]
 355   "CSKY_ISA_FEATURE(fpv3_hf)"
 356   "fstoh\t%0, %1")
 357
 358 ;; DF <- SF
 359 (define_insn "*fpv3_extendsfdf2"
 360   [(set (match_operand:DF                 0 "register_operand" "=v")
 361         (float_extend:DF (match_operand:SF 1 "register_operand" "v")))]
 362   "CSKY_ISA_FEATURE(fpv3_df)"
 363   "fstod\t%0, %1")
 364
 365 ;; SF <- DF
 366 (define_insn "*fpv3_truncdfsf2"
 367   [(set (match_operand:SF                   0 "register_operand" "=v")
 368         (float_truncate:SF (match_operand:DF 1 "register_operand" "v")))]
 369   "CSKY_ISA_FEATURE(fpv3_df)"
 370   "fdtos\t%0, %1")
 371
 372 ;; DF,SF,HF <- unsigned SI,SI
 373 (define_insn "*fpv3_float<floatsuop>si<mode>2"
 374   [(set (match_operand:F3ANY       0 "register_operand" "=v")
 375         (FLOAT_SU:F3ANY (match_operand:SI 1 "register_operand" "v")))]
 376   "CSKY_ISA_FEATURE(fpv3_<mode>)"
 377   "fitof.<floatsu>32.f<f3t>\t%0, %1")
 378
 379 ;; HF <- unsigned HI,HI
 380 (define_insn "*fpv3_float<floatsuop>hihf2"
 381   [(set (match_operand:HF          0 "register_operand" "=v")
 382         (FLOAT_SU:HF (match_operand:HI 1 "register_operand" "v")))]
 383   "CSKY_ISA_FEATURE(fpv3_hi) && CSKY_ISA_FEATURE(fpv3_hf)"
 384   "fitof.<floatsu>16.f16\t%0, %1")
 385
 386 ;; unsigned SI,SI <- DF,SF,HF
 387 (define_insn "*fpv3_fix<fixsuop>_trunc<mode>si2"
 388   [(set (match_operand:SI           0 "register_operand" "=v")
 389         (FIX_SU:SI (fix:F3ANY (match_operand:F3ANY 1 "register_operand" "v"))))]
 390   "CSKY_ISA_FEATURE(fpv3_<mode>)"
 391   "fftoi.f<f3t>.<fixsu>32.rz\t%0, %1")
 392
 393 ;; -------------------------------------------------------------------------
 394 ;; Float complex convert instructions
 395 ;; -------------------------------------------------------------------------
 396
 397 ;; Fixed point to floating point conversions.
 398
 399 ;(define_insn "*combine_fcvt_fixed16_<mode>"
 400 ;  [(set (match_operand:F3ANY 0 "register_operand" "=v")
 401 ;       (mult:F3ANY (float:F3ANY (match_operand:HI 1 "register_operand" "0"))
 402 ;              (match_operand 2
 403 ;                       "const_double_fcvt_power_of_two_reciprocal_hq" "Dt")))]
 404 ;  "CSKY_ISA_FEATURE(fpv3_<mode>) && !flag_rounding_math
 405 ;   && CSKY_ISA_FEATURE(fpv3_hi)"
 406 ;  "fxtof.s16.f<f3t>\t%0, %1, %v2")
 407 ;
 408 ;(define_insn "*combine_fcvt_fixed32_<mode>"
 409 ;  [(set (match_operand:F3ANY 0 "register_operand" "=v")
 410 ;       (mult:F3ANY (float:F3ANY (match_operand:SI 1 "register_operand" "0"))
 411 ;              (match_operand 2
 412 ;                       "const_double_fcvt_power_of_two_reciprocal_sq" "Dt")))]
 413 ;  "CSKY_ISA_FEATURE(fpv3_<mode>) && !flag_rounding_math"
 414 ;  "fxtof.s32.f<f3t>\t%0, %1, %v2")
 415 ;
 416 ;(define_insn "*combine_fcvt_unfixed16_<mode>"
 417 ;  [(set (match_operand:F3ANY 0 "register_operand" "=v")
 418 ;       (mult:F3ANY (unsigned_float:F3ANY (match_operand:HI 1 "register_operand" "0"))
 419 ;              (match_operand 2
 420 ;                       "const_double_fcvt_power_of_two_reciprocal_hq" "Dt")))]
 421 ;  "CSKY_ISA_FEATURE(fpv3_<mode>) && !flag_rounding_math
 422 ;   && CSKY_ISA_FEATURE(fpv3_hi)"
 423 ;  "fxtof.u16.f<f3t>\t%0, %1, %v2")
 424 ;
 425 ;(define_insn "*combine_fcvt_unfixed32_<mode>"
 426 ;  [(set (match_operand:F3ANY 0 "register_operand" "=v")
 427 ;       (mult:F3ANY (unsigned_float:F3ANY (match_operand:SI 1 "register_operand" "0"))
 428 ;              (match_operand 2
 429 ;                       "const_double_fcvt_power_of_two_reciprocal_sq" "Dt")))]
 430 ;  "CSKY_ISA_FEATURE(fpv3_<mode>) && !flag_rounding_math"
 431 ;  "fxtof.u32.f<f3t>\t%0, %1, %v2")
 432
 433 ;; Floating point to fixed point conversions.
 434
 435 ;(define_insn "*combine_fcvt<mode>_fixed16"
 436 ;  [(set (match_operand:HI 0 "register_operand" "=v")
 437 ;       (fix:HI (fix:F3ANY (mult:F3ANY (match_operand:F3ANY 1 "register_operand" "0")
 438 ;                           (match_operand 2
 439 ;                            "const_double_fcvt_power_of_two_hq" "Du")))))]
 440 ;  "CSKY_ISA_FEATURE(fpv3_<mode>) && !flag_rounding_math
 441 ;   && CSKY_ISA_FEATURE(fpv3_hi)"
 442 ;  "fftox.f<f3t>.s16\t%0, %1, %v2"
 443 ; )
 444 ;
 445 ;(define_insn "*combine_fcvt<mode>_fixed32"
 446 ;  [(set (match_operand:SI 0 "register_operand" "=v")
 447 ;       (fix:SI (fix:F3ANY (mult:F3ANY (match_operand:F3ANY 1 "register_operand" "0")
 448 ;                           (match_operand 2
 449 ;                            "const_double_fcvt_power_of_two_sq" "Du")))))]
 450 ;  "CSKY_ISA_FEATURE(fpv3_<mode>) && !flag_rounding_math"
 451 ;  "fftox.f<f3t>.s32\t%0, %1, %v2"
 452 ; )
 453 ;
 454 ;(define_insn "*combine_fcvt<mode>_unfixed16"
 455 ;  [(set (match_operand:HI 0 "register_operand" "=v")
 456 ;       (unsigned_fix:HI (fix:F3ANY (mult:F3ANY (match_operand:F3ANY 1 "register_operand" "0")
 457 ;                                    (match_operand 2
 458 ;                                     "const_double_fcvt_power_of_two_hq" "Du")))))]
 459 ;  "CSKY_ISA_FEATURE(fpv3_<mode>) && !flag_rounding_math
 460 ;   && CSKY_ISA_FEATURE(fpv3_hi)"
 461 ;  "fftox.f<f3t>.u16\t%0, %1, %v2"
 462 ; )
 463 ;
 464 ;(define_insn "*combine_fcvt<mode>_unfixed32"
 465 ;  [(set (match_operand:SI 0 "register_operand" "=v")
 466 ;       (unsigned_fix:SI (fix:F3ANY (mult:F3ANY (match_operand:F3ANY 1 "register_operand" "0")
 467 ;                                    (match_operand 2
 468 ;                                     "const_double_fcvt_power_of_two_sq" "Du")))))]
 469 ;  "CSKY_ISA_FEATURE(fpv3_<mode>) && !flag_rounding_math"
 470 ;  "fftox.f<f3t>.u32\t%0, %1, %v2"
 471 ; )
 472
 473 ;; conversions need to be rounding to nearest.
 474
 475 (define_insn "l<frm_pattern><fixsuop><mode>si2"
 476   [(set (match_operand:SI 0 "register_operand" "=v")
 477         (FIX_SU:SI (unspec:F3ANY [(match_operand:F3ANY 1 "register_operand" "0")]
 478                                    FRM)))]
 479   "CSKY_ISA_FEATURE(fpv3_<mode>)"
 480   "fftoi.f<f3t>.<fixsu>32<rm>\t%0, %1"
 481 )
 482
 483 (define_insn "<frm_pattern><mode>2"
 484   [(set (match_operand:F3ANY 0 "register_operand" "=v")
 485         (unspec:F3ANY [(match_operand:F3ANY 1 "register_operand" "0")] FRMF))]
 486   "CSKY_ISA_FEATURE(fpv3_<mode>)"
 487   "fftofi.f<f3t><rm>\t%0, %1"
 488 )
 489
 490 ;; Write Floating-point Control Register.
 491 (define_insn "csky_setfcrsi"
 492   [(unspec_volatile [(match_operand:SI 0 "register_operand" "r")] VUNSPEC_SET_FCR)]
 493   "CSKY_ISA_FEATURE(fcr)"
 494   "mtcr\t%0, fcr"
 495 )
 496
 497 ;; Read Floating-point Control Register.
 498 (define_insn "csky_getfcrsi"
 499   [(set (match_operand:SI 0 "register_operand" "=r")
 500         (unspec_volatile:SI [(const_int 0)] VUNSPEC_GET_FCR))]
 501   "CSKY_ISA_FEATURE(fcr)"
 502   "mfcr\t%0, fcr"
 503 )
 504
 505 ;; Insert Floating-point Control Register.
 506 (define_insn "csky_insfcrsi"
 507   [(unspec_volatile [(match_operand:SI 0 "register_operand" "r")
 508                      (match_operand:SI 1 "const_int_operand" "i")
 509                      (match_operand:SI 2 "const_int_operand" "i")]VUNSPEC_INS_FCR)
 510    (clobber (reg: SI 13))]
 511   "CSKY_ISA_FEATURE(fcr)"
 512   {
 513     operands[1] = GEN_INT (INTVAL (operands[2]) + INTVAL (operands[1]) - 1);
 514     return "mfcr\tt1, fcr\n\tins\tt1, %0, %1, %2\n\tmtcr\tt1, fcr";
 515   }
 516 )