llvm/test/MC/AMDGPU/gfx12_asm_vopcx_t16_promote.s

   1 // RUN: llvm-mc -arch=amdgcn -mcpu=gfx1200 -mattr=+wavefrontsize64 -show-encoding %s 2>&1 | FileCheck --check-prefix=GFX12 %s
   2
   3 v_cmpx_class_f16 v1, v255
   4 // GFX12: v_cmpx_class_f16_e64
   5
   6 v_cmpx_eq_f16 v1, v255
   7 // GFX12: v_cmpx_eq_f16_e64
   8
   9 v_cmpx_eq_i16 v1, v255
  10 // GFX12: v_cmpx_eq_i16_e64
  11
  12 v_cmpx_eq_u16 v1, v255
  13 // GFX12: v_cmpx_eq_u16_e64
  14
  15 v_cmpx_ge_f16 v1, v255
  16 // GFX12: v_cmpx_ge_f16_e64
  17
  18 v_cmpx_ge_i16 v1, v255
  19 // GFX12: v_cmpx_ge_i16_e64
  20
  21 v_cmpx_ge_u16 v1, v255
  22 // GFX12: v_cmpx_ge_u16_e64
  23
  24 v_cmpx_gt_f16 v1, v255
  25 // GFX12: v_cmpx_gt_f16_e64
  26
  27 v_cmpx_gt_i16 v1, v255
  28 // GFX12: v_cmpx_gt_i16_e64
  29
  30 v_cmpx_gt_u16 v1, v255
  31 // GFX12: v_cmpx_gt_u16_e64
  32
  33 v_cmpx_le_f16 v1, v255
  34 // GFX12: v_cmpx_le_f16_e64
  35
  36 v_cmpx_le_i16 v1, v255
  37 // GFX12: v_cmpx_le_i16_e64
  38
  39 v_cmpx_le_u16 v1, v255
  40 // GFX12: v_cmpx_le_u16_e64
  41
  42 v_cmpx_lg_f16 v1, v255
  43 // GFX12: v_cmpx_lg_f16_e64
  44
  45 v_cmpx_lt_f16 v1, v255
  46 // GFX12: v_cmpx_lt_f16_e64
  47
  48 v_cmpx_lt_i16 v1, v255
  49 // GFX12: v_cmpx_lt_i16_e64
  50
  51 v_cmpx_lt_u16 v1, v255
  52 // GFX12: v_cmpx_lt_u16_e64
  53
  54 v_cmpx_ne_i16 v1, v255
  55 // GFX12: v_cmpx_ne_i16_e64
  56
  57 v_cmpx_ne_u16 v1, v255
  58 // GFX12: v_cmpx_ne_u16_e64
  59
  60 v_cmpx_neq_f16 v1, v255
  61 // GFX12: v_cmpx_neq_f16_e64
  62
  63 v_cmpx_nge_f16 v1, v255
  64 // GFX12: v_cmpx_nge_f16_e64
  65
  66 v_cmpx_ngt_f16 v1, v255
  67 // GFX12: v_cmpx_ngt_f16_e64
  68
  69 v_cmpx_nle_f16 v1, v255
  70 // GFX12: v_cmpx_nle_f16_e64
  71
  72 v_cmpx_nlg_f16 v1, v255
  73 // GFX12: v_cmpx_nlg_f16_e64
  74
  75 v_cmpx_nlt_f16 v1, v255
  76 // GFX12: v_cmpx_nlt_f16_e64
  77
  78 v_cmpx_o_f16 v1, v255
  79 // GFX12: v_cmpx_o_f16_e64
  80
  81 v_cmpx_u_f16 v1, v255
  82 // GFX12: v_cmpx_u_f16_e64
  83
  84 v_cmpx_class_f16 v255, v2
  85 // GFX12: v_cmpx_class_f16_e64
  86
  87 v_cmpx_eq_f16 v255, v2
  88 // GFX12: v_cmpx_eq_f16_e64
  89
  90 v_cmpx_eq_i16 v255, v2
  91 // GFX12: v_cmpx_eq_i16_e64
  92
  93 v_cmpx_eq_u16 v255, v2
  94 // GFX12: v_cmpx_eq_u16_e64
  95
  96 v_cmpx_ge_f16 v255, v2
  97 // GFX12: v_cmpx_ge_f16_e64
  98
  99 v_cmpx_ge_i16 v255, v2
 100 // GFX12: v_cmpx_ge_i16_e64
 101
 102 v_cmpx_ge_u16 v255, v2
 103 // GFX12: v_cmpx_ge_u16_e64
 104
 105 v_cmpx_gt_f16 v255, v2
 106 // GFX12: v_cmpx_gt_f16_e64
 107
 108 v_cmpx_gt_i16 v255, v2
 109 // GFX12: v_cmpx_gt_i16_e64
 110
 111 v_cmpx_gt_u16 v255, v2
 112 // GFX12: v_cmpx_gt_u16_e64
 113
 114 v_cmpx_le_f16 v255, v2
 115 // GFX12: v_cmpx_le_f16_e64
 116
 117 v_cmpx_le_i16 v255, v2
 118 // GFX12: v_cmpx_le_i16_e64
 119
 120 v_cmpx_le_u16 v255, v2
 121 // GFX12: v_cmpx_le_u16_e64
 122
 123 v_cmpx_lg_f16 v255, v2
 124 // GFX12: v_cmpx_lg_f16_e64
 125
 126 v_cmpx_lt_f16 v255, v2
 127 // GFX12: v_cmpx_lt_f16_e64
 128
 129 v_cmpx_lt_i16 v255, v2
 130 // GFX12: v_cmpx_lt_i16_e64
 131
 132 v_cmpx_lt_u16 v255, v2
 133 // GFX12: v_cmpx_lt_u16_e64
 134
 135 v_cmpx_ne_i16 v255, v2
 136 // GFX12: v_cmpx_ne_i16_e64
 137
 138 v_cmpx_ne_u16 v255, v2
 139 // GFX12: v_cmpx_ne_u16_e64
 140
 141 v_cmpx_neq_f16 v255, v2
 142 // GFX12: v_cmpx_neq_f16_e64
 143
 144 v_cmpx_nge_f16 v255, v2
 145 // GFX12: v_cmpx_nge_f16_e64
 146
 147 v_cmpx_ngt_f16 v255, v2
 148 // GFX12: v_cmpx_ngt_f16_e64
 149
 150 v_cmpx_nle_f16 v255, v2
 151 // GFX12: v_cmpx_nle_f16_e64
 152
 153 v_cmpx_nlg_f16 v255, v2
 154 // GFX12: v_cmpx_nlg_f16_e64
 155
 156 v_cmpx_nlt_f16 v255, v2
 157 // GFX12: v_cmpx_nlt_f16_e64
 158
 159 v_cmpx_o_f16 v255, v2
 160 // GFX12: v_cmpx_o_f16_e64
 161
 162 v_cmpx_u_f16 v255, v2
 163 // GFX12: v_cmpx_u_f16_e64
 164
 165 v_cmpx_class_f16 v1, v255 quad_perm:[3,2,1,0]
 166 // GFX12: v_cmpx_class_f16_e64
 167
 168 v_cmpx_eq_f16 v1, v255 quad_perm:[3,2,1,0]
 169 // GFX12: v_cmpx_eq_f16_e64
 170
 171 v_cmpx_eq_i16 v1, v255 quad_perm:[3,2,1,0]
 172 // GFX12: v_cmpx_eq_i16_e64
 173
 174 v_cmpx_eq_u16 v1, v255 quad_perm:[3,2,1,0]
 175 // GFX12: v_cmpx_eq_u16_e64
 176
 177 v_cmpx_ge_f16 v1, v255 quad_perm:[3,2,1,0]
 178 // GFX12: v_cmpx_ge_f16_e64
 179
 180 v_cmpx_ge_i16 v1, v255 quad_perm:[3,2,1,0]
 181 // GFX12: v_cmpx_ge_i16_e64
 182
 183 v_cmpx_ge_u16 v1, v255 quad_perm:[3,2,1,0]
 184 // GFX12: v_cmpx_ge_u16_e64
 185
 186 v_cmpx_gt_f16 v1, v255 quad_perm:[3,2,1,0]
 187 // GFX12: v_cmpx_gt_f16_e64
 188
 189 v_cmpx_gt_i16 v1, v255 quad_perm:[3,2,1,0]
 190 // GFX12: v_cmpx_gt_i16_e64
 191
 192 v_cmpx_gt_u16 v1, v255 quad_perm:[3,2,1,0]
 193 // GFX12: v_cmpx_gt_u16_e64
 194
 195 v_cmpx_le_f16 v1, v255 quad_perm:[3,2,1,0]
 196 // GFX12: v_cmpx_le_f16_e64
 197
 198 v_cmpx_le_i16 v1, v255 quad_perm:[3,2,1,0]
 199 // GFX12: v_cmpx_le_i16_e64
 200
 201 v_cmpx_le_u16 v1, v255 quad_perm:[3,2,1,0]
 202 // GFX12: v_cmpx_le_u16_e64
 203
 204 v_cmpx_lg_f16 v1, v255 quad_perm:[3,2,1,0]
 205 // GFX12: v_cmpx_lg_f16_e64
 206
 207 v_cmpx_lt_f16 v1, v255 quad_perm:[3,2,1,0]
 208 // GFX12: v_cmpx_lt_f16_e64
 209
 210 v_cmpx_lt_i16 v1, v255 quad_perm:[3,2,1,0]
 211 // GFX12: v_cmpx_lt_i16_e64
 212
 213 v_cmpx_lt_u16 v1, v255 quad_perm:[3,2,1,0]
 214 // GFX12: v_cmpx_lt_u16_e64
 215
 216 v_cmpx_ne_i16 v1, v255 quad_perm:[3,2,1,0]
 217 // GFX12: v_cmpx_ne_i16_e64
 218
 219 v_cmpx_ne_u16 v1, v255 quad_perm:[3,2,1,0]
 220 // GFX12: v_cmpx_ne_u16_e64
 221
 222 v_cmpx_neq_f16 v1, v255 quad_perm:[3,2,1,0]
 223 // GFX12: v_cmpx_neq_f16_e64
 224
 225 v_cmpx_nge_f16 v1, v255 quad_perm:[3,2,1,0]
 226 // GFX12: v_cmpx_nge_f16_e64
 227
 228 v_cmpx_ngt_f16 v1, v255 quad_perm:[3,2,1,0]
 229 // GFX12: v_cmpx_ngt_f16_e64
 230
 231 v_cmpx_nle_f16 v1, v255 quad_perm:[3,2,1,0]
 232 // GFX12: v_cmpx_nle_f16_e64
 233
 234 v_cmpx_nlg_f16 v1, v255 quad_perm:[3,2,1,0]
 235 // GFX12: v_cmpx_nlg_f16_e64
 236
 237 v_cmpx_nlt_f16 v1, v255 quad_perm:[3,2,1,0]
 238 // GFX12: v_cmpx_nlt_f16_e64
 239
 240 v_cmpx_o_f16 v1, v255 quad_perm:[3,2,1,0]
 241 // GFX12: v_cmpx_o_f16_e64
 242
 243 v_cmpx_u_f16 v1, v255 quad_perm:[3,2,1,0]
 244 // GFX12: v_cmpx_u_f16_e64
 245
 246 v_cmpx_class_f16 v255, v2 quad_perm:[3,2,1,0]
 247 // GFX12: v_cmpx_class_f16_e64
 248
 249 v_cmpx_eq_f16 v255, v2 quad_perm:[3,2,1,0]
 250 // GFX12: v_cmpx_eq_f16_e64
 251
 252 v_cmpx_eq_i16 v255, v2 quad_perm:[3,2,1,0]
 253 // GFX12: v_cmpx_eq_i16_e64
 254
 255 v_cmpx_eq_u16 v255, v2 quad_perm:[3,2,1,0]
 256 // GFX12: v_cmpx_eq_u16_e64
 257
 258 v_cmpx_ge_f16 v255, v2 quad_perm:[3,2,1,0]
 259 // GFX12: v_cmpx_ge_f16_e64
 260
 261 v_cmpx_ge_i16 v255, v2 quad_perm:[3,2,1,0]
 262 // GFX12: v_cmpx_ge_i16_e64
 263
 264 v_cmpx_ge_u16 v255, v2 quad_perm:[3,2,1,0]
 265 // GFX12: v_cmpx_ge_u16_e64
 266
 267 v_cmpx_gt_f16 v255, v2 quad_perm:[3,2,1,0]
 268 // GFX12: v_cmpx_gt_f16_e64
 269
 270 v_cmpx_gt_i16 v255, v2 quad_perm:[3,2,1,0]
 271 // GFX12: v_cmpx_gt_i16_e64
 272
 273 v_cmpx_gt_u16 v255, v2 quad_perm:[3,2,1,0]
 274 // GFX12: v_cmpx_gt_u16_e64
 275
 276 v_cmpx_le_f16 v255, v2 quad_perm:[3,2,1,0]
 277 // GFX12: v_cmpx_le_f16_e64
 278
 279 v_cmpx_le_i16 v255, v2 quad_perm:[3,2,1,0]
 280 // GFX12: v_cmpx_le_i16_e64
 281
 282 v_cmpx_le_u16 v255, v2 quad_perm:[3,2,1,0]
 283 // GFX12: v_cmpx_le_u16_e64
 284
 285 v_cmpx_lg_f16 v255, v2 quad_perm:[3,2,1,0]
 286 // GFX12: v_cmpx_lg_f16_e64
 287
 288 v_cmpx_lt_f16 v255, v2 quad_perm:[3,2,1,0]
 289 // GFX12: v_cmpx_lt_f16_e64
 290
 291 v_cmpx_lt_i16 v255, v2 quad_perm:[3,2,1,0]
 292 // GFX12: v_cmpx_lt_i16_e64
 293
 294 v_cmpx_lt_u16 v255, v2 quad_perm:[3,2,1,0]
 295 // GFX12: v_cmpx_lt_u16_e64
 296
 297 v_cmpx_ne_i16 v255, v2 quad_perm:[3,2,1,0]
 298 // GFX12: v_cmpx_ne_i16_e64
 299
 300 v_cmpx_ne_u16 v255, v2 quad_perm:[3,2,1,0]
 301 // GFX12: v_cmpx_ne_u16_e64
 302
 303 v_cmpx_neq_f16 v255, v2 quad_perm:[3,2,1,0]
 304 // GFX12: v_cmpx_neq_f16_e64
 305
 306 v_cmpx_nge_f16 v255, v2 quad_perm:[3,2,1,0]
 307 // GFX12: v_cmpx_nge_f16_e64
 308
 309 v_cmpx_ngt_f16 v255, v2 quad_perm:[3,2,1,0]
 310 // GFX12: v_cmpx_ngt_f16_e64
 311
 312 v_cmpx_nle_f16 v255, v2 quad_perm:[3,2,1,0]
 313 // GFX12: v_cmpx_nle_f16_e64
 314
 315 v_cmpx_nlg_f16 v255, v2 quad_perm:[3,2,1,0]
 316 // GFX12: v_cmpx_nlg_f16_e64
 317
 318 v_cmpx_nlt_f16 v255, v2 quad_perm:[3,2,1,0]
 319 // GFX12: v_cmpx_nlt_f16_e64
 320
 321 v_cmpx_o_f16 v255, v2 quad_perm:[3,2,1,0]
 322 // GFX12: v_cmpx_o_f16_e64
 323
 324 v_cmpx_u_f16 v255, v2 quad_perm:[3,2,1,0]
 325 // GFX12: v_cmpx_u_f16_e64
 326
 327 v_cmpx_class_f16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 328 // GFX12: v_cmpx_class_f16_e64
 329
 330 v_cmpx_eq_f16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 331 // GFX12: v_cmpx_eq_f16_e64
 332
 333 v_cmpx_eq_i16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 334 // GFX12: v_cmpx_eq_i16_e64
 335
 336 v_cmpx_eq_u16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 337 // GFX12: v_cmpx_eq_u16_e64
 338
 339 v_cmpx_ge_f16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 340 // GFX12: v_cmpx_ge_f16_e64
 341
 342 v_cmpx_ge_i16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 343 // GFX12: v_cmpx_ge_i16_e64
 344
 345 v_cmpx_ge_u16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 346 // GFX12: v_cmpx_ge_u16_e64
 347
 348 v_cmpx_gt_f16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 349 // GFX12: v_cmpx_gt_f16_e64
 350
 351 v_cmpx_gt_i16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 352 // GFX12: v_cmpx_gt_i16_e64
 353
 354 v_cmpx_gt_u16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 355 // GFX12: v_cmpx_gt_u16_e64
 356
 357 v_cmpx_le_f16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 358 // GFX12: v_cmpx_le_f16_e64
 359
 360 v_cmpx_le_i16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 361 // GFX12: v_cmpx_le_i16_e64
 362
 363 v_cmpx_le_u16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 364 // GFX12: v_cmpx_le_u16_e64
 365
 366 v_cmpx_lg_f16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 367 // GFX12: v_cmpx_lg_f16_e64
 368
 369 v_cmpx_lt_f16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 370 // GFX12: v_cmpx_lt_f16_e64
 371
 372 v_cmpx_lt_i16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 373 // GFX12: v_cmpx_lt_i16_e64
 374
 375 v_cmpx_lt_u16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 376 // GFX12: v_cmpx_lt_u16_e64
 377
 378 v_cmpx_ne_i16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 379 // GFX12: v_cmpx_ne_i16_e64
 380
 381 v_cmpx_ne_u16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 382 // GFX12: v_cmpx_ne_u16_e64
 383
 384 v_cmpx_neq_f16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 385 // GFX12: v_cmpx_neq_f16_e64
 386
 387 v_cmpx_nge_f16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 388 // GFX12: v_cmpx_nge_f16_e64
 389
 390 v_cmpx_ngt_f16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 391 // GFX12: v_cmpx_ngt_f16_e64
 392
 393 v_cmpx_nle_f16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 394 // GFX12: v_cmpx_nle_f16_e64
 395
 396 v_cmpx_nlg_f16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 397 // GFX12: v_cmpx_nlg_f16_e64
 398
 399 v_cmpx_nlt_f16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 400 // GFX12: v_cmpx_nlt_f16_e64
 401
 402 v_cmpx_o_f16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 403 // GFX12: v_cmpx_o_f16_e64
 404
 405 v_cmpx_u_f16 v1, v255 dpp8:[7,6,5,4,3,2,1,0]
 406 // GFX12: v_cmpx_u_f16_e64
 407
 408 v_cmpx_class_f16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 409 // GFX12: v_cmpx_class_f16_e64
 410
 411 v_cmpx_eq_f16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 412 // GFX12: v_cmpx_eq_f16_e64
 413
 414 v_cmpx_eq_i16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 415 // GFX12: v_cmpx_eq_i16_e64
 416
 417 v_cmpx_eq_u16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 418 // GFX12: v_cmpx_eq_u16_e64
 419
 420 v_cmpx_ge_f16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 421 // GFX12: v_cmpx_ge_f16_e64
 422
 423 v_cmpx_ge_i16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 424 // GFX12: v_cmpx_ge_i16_e64
 425
 426 v_cmpx_ge_u16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 427 // GFX12: v_cmpx_ge_u16_e64
 428
 429 v_cmpx_gt_f16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 430 // GFX12: v_cmpx_gt_f16_e64
 431
 432 v_cmpx_gt_i16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 433 // GFX12: v_cmpx_gt_i16_e64
 434
 435 v_cmpx_gt_u16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 436 // GFX12: v_cmpx_gt_u16_e64
 437
 438 v_cmpx_le_f16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 439 // GFX12: v_cmpx_le_f16_e64
 440
 441 v_cmpx_le_i16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 442 // GFX12: v_cmpx_le_i16_e64
 443
 444 v_cmpx_le_u16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 445 // GFX12: v_cmpx_le_u16_e64
 446
 447 v_cmpx_lg_f16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 448 // GFX12: v_cmpx_lg_f16_e64
 449
 450 v_cmpx_lt_f16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 451 // GFX12: v_cmpx_lt_f16_e64
 452
 453 v_cmpx_lt_i16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 454 // GFX12: v_cmpx_lt_i16_e64
 455
 456 v_cmpx_lt_u16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 457 // GFX12: v_cmpx_lt_u16_e64
 458
 459 v_cmpx_ne_i16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 460 // GFX12: v_cmpx_ne_i16_e64
 461
 462 v_cmpx_ne_u16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 463 // GFX12: v_cmpx_ne_u16_e64
 464
 465 v_cmpx_neq_f16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 466 // GFX12: v_cmpx_neq_f16_e64
 467
 468 v_cmpx_nge_f16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 469 // GFX12: v_cmpx_nge_f16_e64
 470
 471 v_cmpx_ngt_f16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 472 // GFX12: v_cmpx_ngt_f16_e64
 473
 474 v_cmpx_nle_f16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 475 // GFX12: v_cmpx_nle_f16_e64
 476
 477 v_cmpx_nlg_f16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 478 // GFX12: v_cmpx_nlg_f16_e64
 479
 480 v_cmpx_nlt_f16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 481 // GFX12: v_cmpx_nlt_f16_e64
 482
 483 v_cmpx_o_f16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 484 // GFX12: v_cmpx_o_f16_e64
 485
 486 v_cmpx_u_f16 v255, v2 dpp8:[7,6,5,4,3,2,1,0]
 487 // GFX12: v_cmpx_u_f16_e64