1 ; Tests to make sure elimination of casts is working correctly 2 ; RUN: opt < %s -instcombine -S | FileCheck %s 3 target datalayout = "E-p:64:64:64-a0:0:8-f32:32:32-f64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-v64:64:64-v128:128:128-n8:16:32:64" 4 5 @inbuf = external global [32832 x i8] ; <[32832 x i8]*> [#uses=1] 6 7 define i32 @test1(i32 %A) { 8 %c1 = bitcast i32 %A to i32 ; <i32> [#uses=1] 9 %c2 = bitcast i32 %c1 to i32 ; <i32> [#uses=1] 10 ret i32 %c2 11 ; CHECK: ret i32 %A 12 } 13 14 define i64 @test2(i8 %A) { 15 %c1 = zext i8 %A to i16 ; <i16> [#uses=1] 16 %c2 = zext i16 %c1 to i32 ; <i32> [#uses=1] 17 %Ret = zext i32 %c2 to i64 ; <i64> [#uses=1] 18 ret i64 %Ret 19 ; CHECK: %Ret = zext i8 %A to i64 20 ; CHECK: ret i64 %Ret 21 } 22 23 ; This function should just use bitwise AND 24 define i64 @test3(i64 %A) { 25 %c1 = trunc i64 %A to i8 ; <i8> [#uses=1] 26 %c2 = zext i8 %c1 to i64 ; <i64> [#uses=1] 27 ret i64 %c2 28 ; CHECK: %c2 = and i64 %A, 255 29 ; CHECK: ret i64 %c2 30 } 31 32 define i32 @test4(i32 %A, i32 %B) { 33 %COND = icmp slt i32 %A, %B ; <i1> [#uses=1] 34 ; Booleans are unsigned integrals 35 %c = zext i1 %COND to i8 ; <i8> [#uses=1] 36 ; for the cast elim purpose 37 %result = zext i8 %c to i32 ; <i32> [#uses=1] 38 ret i32 %result 39 ; CHECK: %COND = icmp slt i32 %A, %B 40 ; CHECK: %result = zext i1 %COND to i32 41 ; CHECK: ret i32 %result 42 } 43 44 define i32 @test5(i1 %B) { 45 ; This cast should get folded into 46 %c = zext i1 %B to i8 ; <i8> [#uses=1] 47 ; this cast 48 %result = zext i8 %c to i32 ; <i32> [#uses=1] 49 ret i32 %result 50 ; CHECK: %result = zext i1 %B to i32 51 ; CHECK: ret i32 %result 52 } 53 54 define i32 @test6(i64 %A) { 55 %c1 = trunc i64 %A to i32 ; <i32> [#uses=1] 56 %res = bitcast i32 %c1 to i32 ; <i32> [#uses=1] 57 ret i32 %res 58 ; CHECK: trunc i64 %A to i32 59 ; CHECK-NEXT: ret i32 60 } 61 62 define i64 @test7(i1 %A) { 63 %c1 = zext i1 %A to i32 ; <i32> [#uses=1] 64 %res = sext i32 %c1 to i64 ; <i64> [#uses=1] 65 ret i64 %res 66 ; CHECK: %res = zext i1 %A to i64 67 ; CHECK: ret i64 %res 68 } 69 70 define i64 @test8(i8 %A) { 71 %c1 = sext i8 %A to i64 ; <i64> [#uses=1] 72 %res = bitcast i64 %c1 to i64 ; <i64> [#uses=1] 73 ret i64 %res 74 ; CHECK: = sext i8 %A to i64 75 ; CHECK-NEXT: ret i64 76 } 77 78 define i16 @test9(i16 %A) { 79 %c1 = sext i16 %A to i32 ; <i32> [#uses=1] 80 %c2 = trunc i32 %c1 to i16 ; <i16> [#uses=1] 81 ret i16 %c2 82 ; CHECK: ret i16 %A 83 } 84 85 define i16 @test10(i16 %A) { 86 %c1 = sext i16 %A to i32 ; <i32> [#uses=1] 87 %c2 = trunc i32 %c1 to i16 ; <i16> [#uses=1] 88 ret i16 %c2 89 ; CHECK: ret i16 %A 90 } 91 92 declare void @varargs(i32, ...) 93 94 define void @test11(i32* %P) { 95 %c = bitcast i32* %P to i16* ; <i16*> [#uses=1] 96 call void (i32, ...)* @varargs( i32 5, i16* %c ) 97 ret void 98 ; CHECK: call void (i32, ...)* @varargs(i32 5, i32* %P) 99 ; CHECK: ret void 100 } 101 102 define i8* @test13(i64 %A) { 103 %c = getelementptr [0 x i8]* bitcast ([32832 x i8]* @inbuf to [0 x i8]*), i64 0, i64 %A ; <i8*> [#uses=1] 104 ret i8* %c 105 ; CHECK: %c = getelementptr [32832 x i8]* @inbuf, i64 0, i64 %A 106 ; CHECK: ret i8* %c 107 } 108 109 define i1 @test14(i8 %A) { 110 %c = bitcast i8 %A to i8 ; <i8> [#uses=1] 111 %X = icmp ult i8 %c, -128 ; <i1> [#uses=1] 112 ret i1 %X 113 ; CHECK: %X = icmp sgt i8 %A, -1 114 ; CHECK: ret i1 %X 115 } 116 117 118 ; This just won't occur when there's no difference between ubyte and sbyte 119 ;bool %test15(ubyte %A) { 120 ; %c = cast ubyte %A to sbyte 121 ; %X = setlt sbyte %c, 0 ; setgt %A, 127 122 ; ret bool %X 123 ;} 124 125 define i1 @test16(i32* %P) { 126 %c = icmp ne i32* %P, null ; <i1> [#uses=1] 127 ret i1 %c 128 ; CHECK: %c = icmp ne i32* %P, null 129 ; CHECK: ret i1 %c 130 } 131 132 define i16 @test17(i1 %tmp3) { 133 %c = zext i1 %tmp3 to i32 ; <i32> [#uses=1] 134 %t86 = trunc i32 %c to i16 ; <i16> [#uses=1] 135 ret i16 %t86 136 ; CHECK: %t86 = zext i1 %tmp3 to i16 137 ; CHECK: ret i16 %t86 138 } 139 140 define i16 @test18(i8 %tmp3) { 141 %c = sext i8 %tmp3 to i32 ; <i32> [#uses=1] 142 %t86 = trunc i32 %c to i16 ; <i16> [#uses=1] 143 ret i16 %t86 144 ; CHECK: %t86 = sext i8 %tmp3 to i16 145 ; CHECK: ret i16 %t86 146 } 147 148 define i1 @test19(i32 %X) { 149 %c = sext i32 %X to i64 ; <i64> [#uses=1] 150 %Z = icmp slt i64 %c, 12345 ; <i1> [#uses=1] 151 ret i1 %Z 152 ; CHECK: %Z = icmp slt i32 %X, 12345 153 ; CHECK: ret i1 %Z 154 } 155 156 define i1 @test20(i1 %B) { 157 %c = zext i1 %B to i32 ; <i32> [#uses=1] 158 %D = icmp slt i32 %c, -1 ; <i1> [#uses=1] 159 ;; false 160 ret i1 %D 161 ; CHECK: ret i1 false 162 } 163 164 define i32 @test21(i32 %X) { 165 %c1 = trunc i32 %X to i8 ; <i8> [#uses=1] 166 ;; sext -> zext -> and -> nop 167 %c2 = sext i8 %c1 to i32 ; <i32> [#uses=1] 168 %RV = and i32 %c2, 255 ; <i32> [#uses=1] 169 ret i32 %RV 170 ; CHECK: %c21 = and i32 %X, 255 171 ; CHECK: ret i32 %c21 172 } 173 174 define i32 @test22(i32 %X) { 175 %c1 = trunc i32 %X to i8 ; <i8> [#uses=1] 176 ;; sext -> zext -> and -> nop 177 %c2 = sext i8 %c1 to i32 ; <i32> [#uses=1] 178 %RV = shl i32 %c2, 24 ; <i32> [#uses=1] 179 ret i32 %RV 180 ; CHECK: shl i32 %X, 24 181 ; CHECK-NEXT: ret i32 182 } 183 184 define i32 @test23(i32 %X) { 185 ;; Turn into an AND even though X 186 %c1 = trunc i32 %X to i16 ; <i16> [#uses=1] 187 ;; and Z are signed. 188 %c2 = zext i16 %c1 to i32 ; <i32> [#uses=1] 189 ret i32 %c2 190 ; CHECK: %c2 = and i32 %X, 65535 191 ; CHECK: ret i32 %c2 192 } 193 194 define i1 @test24(i1 %C) { 195 %X = select i1 %C, i32 14, i32 1234 ; <i32> [#uses=1] 196 ;; Fold cast into select 197 %c = icmp ne i32 %X, 0 ; <i1> [#uses=1] 198 ret i1 %c 199 ; CHECK: ret i1 true 200 } 201 202 define void @test25(i32** %P) { 203 %c = bitcast i32** %P to float** ; <float**> [#uses=1] 204 ;; Fold cast into null 205 store float* null, float** %c 206 ret void 207 ; CHECK: store i32* null, i32** %P 208 ; CHECK: ret void 209 } 210 211 define i32 @test26(float %F) { 212 ;; no need to cast from float->double. 213 %c = fpext float %F to double ; <double> [#uses=1] 214 %D = fptosi double %c to i32 ; <i32> [#uses=1] 215 ret i32 %D 216 ; CHECK: %D = fptosi float %F to i32 217 ; CHECK: ret i32 %D 218 } 219 220 define [4 x float]* @test27([9 x [4 x float]]* %A) { 221 %c = bitcast [9 x [4 x float]]* %A to [4 x float]* ; <[4 x float]*> [#uses=1] 222 ret [4 x float]* %c 223 ; CHECK: %c = getelementptr inbounds [9 x [4 x float]]* %A, i64 0, i64 0 224 ; CHECK: ret [4 x float]* %c 225 } 226 227 define float* @test28([4 x float]* %A) { 228 %c = bitcast [4 x float]* %A to float* ; <float*> [#uses=1] 229 ret float* %c 230 ; CHECK: %c = getelementptr inbounds [4 x float]* %A, i64 0, i64 0 231 ; CHECK: ret float* %c 232 } 233 234 define i32 @test29(i32 %c1, i32 %c2) { 235 %tmp1 = trunc i32 %c1 to i8 ; <i8> [#uses=1] 236 %tmp4.mask = trunc i32 %c2 to i8 ; <i8> [#uses=1] 237 %tmp = or i8 %tmp4.mask, %tmp1 ; <i8> [#uses=1] 238 %tmp10 = zext i8 %tmp to i32 ; <i32> [#uses=1] 239 ret i32 %tmp10 240 ; CHECK: %tmp2 = or i32 %c2, %c1 241 ; CHECK: %tmp10 = and i32 %tmp2, 255 242 ; CHECK: ret i32 %tmp10 243 } 244 245 define i32 @test30(i32 %c1) { 246 %c2 = trunc i32 %c1 to i8 ; <i8> [#uses=1] 247 %c3 = xor i8 %c2, 1 ; <i8> [#uses=1] 248 %c4 = zext i8 %c3 to i32 ; <i32> [#uses=1] 249 ret i32 %c4 250 ; CHECK: %c3 = and i32 %c1, 255 251 ; CHECK: %c4 = xor i32 %c3, 1 252 ; CHECK: ret i32 %c4 253 } 254 255 define i1 @test31(i64 %A) { 256 %B = trunc i64 %A to i32 ; <i32> [#uses=1] 257 %C = and i32 %B, 42 ; <i32> [#uses=1] 258 %D = icmp eq i32 %C, 10 ; <i1> [#uses=1] 259 ret i1 %D 260 ; CHECK: %C = and i64 %A, 42 261 ; CHECK: %D = icmp eq i64 %C, 10 262 ; CHECK: ret i1 %D 263 } 264 265 define i32 @test33(i32 %c1) { 266 %x = bitcast i32 %c1 to float ; <float> [#uses=1] 267 %y = bitcast float %x to i32 ; <i32> [#uses=1] 268 ret i32 %y 269 ; CHECK: ret i32 %c1 270 } 271 272 define i16 @test34(i16 %a) { 273 %c1 = zext i16 %a to i32 ; <i32> [#uses=1] 274 %tmp21 = lshr i32 %c1, 8 ; <i32> [#uses=1] 275 %c2 = trunc i32 %tmp21 to i16 ; <i16> [#uses=1] 276 ret i16 %c2 277 ; CHECK: %tmp21 = lshr i16 %a, 8 278 ; CHECK: ret i16 %tmp21 279 } 280 281 define i16 @test35(i16 %a) { 282 %c1 = bitcast i16 %a to i16 ; <i16> [#uses=1] 283 %tmp2 = lshr i16 %c1, 8 ; <i16> [#uses=1] 284 %c2 = bitcast i16 %tmp2 to i16 ; <i16> [#uses=1] 285 ret i16 %c2 286 ; CHECK: %tmp2 = lshr i16 %a, 8 287 ; CHECK: ret i16 %tmp2 288 } 289 290 ; icmp sgt i32 %a, -1 291 ; rdar://6480391 292 define i1 @test36(i32 %a) { 293 %b = lshr i32 %a, 31 294 %c = trunc i32 %b to i8 295 %d = icmp eq i8 %c, 0 296 ret i1 %d 297 ; CHECK: %d = icmp sgt i32 %a, -1 298 ; CHECK: ret i1 %d 299 } 300 301 ; ret i1 false 302 define i1 @test37(i32 %a) { 303 %b = lshr i32 %a, 31 304 %c = or i32 %b, 512 305 %d = trunc i32 %c to i8 306 %e = icmp eq i8 %d, 11 307 ret i1 %e 308 ; CHECK: ret i1 false 309 } 310 311 define i64 @test38(i32 %a) { 312 %1 = icmp eq i32 %a, -2 313 %2 = zext i1 %1 to i8 314 %3 = xor i8 %2, 1 315 %4 = zext i8 %3 to i64 316 ret i64 %4 317 ; CHECK: %1 = icmp ne i32 %a, -2 318 ; CHECK: %2 = zext i1 %1 to i64 319 ; CHECK: ret i64 %2 320 } 321 322 define i16 @test39(i16 %a) { 323 %tmp = zext i16 %a to i32 324 %tmp21 = lshr i32 %tmp, 8 325 %tmp5 = shl i32 %tmp, 8 326 %tmp.upgrd.32 = or i32 %tmp21, %tmp5 327 %tmp.upgrd.3 = trunc i32 %tmp.upgrd.32 to i16 328 ret i16 %tmp.upgrd.3 329 ; CHECK: @test39 330 ; CHECK: %tmp.upgrd.32 = call i16 @llvm.bswap.i16(i16 %a) 331 ; CHECK: ret i16 %tmp.upgrd.32 332 } 333 334 define i16 @test40(i16 %a) { 335 %tmp = zext i16 %a to i32 336 %tmp21 = lshr i32 %tmp, 9 337 %tmp5 = shl i32 %tmp, 8 338 %tmp.upgrd.32 = or i32 %tmp21, %tmp5 339 %tmp.upgrd.3 = trunc i32 %tmp.upgrd.32 to i16 340 ret i16 %tmp.upgrd.3 341 ; CHECK: @test40 342 ; CHECK: %tmp21 = lshr i16 %a, 9 343 ; CHECK: %tmp5 = shl i16 %a, 8 344 ; CHECK: %tmp.upgrd.32 = or i16 %tmp21, %tmp5 345 ; CHECK: ret i16 %tmp.upgrd.32 346 } 347 348 ; PR1263 349 define i32* @test41(i32* %tmp1) { 350 %tmp64 = bitcast i32* %tmp1 to { i32 }* 351 %tmp65 = getelementptr { i32 }* %tmp64, i32 0, i32 0 352 ret i32* %tmp65 353 ; CHECK: @test41 354 ; CHECK: ret i32* %tmp1 355 } 356 357 define i32 @test42(i32 %X) { 358 %Y = trunc i32 %X to i8 ; <i8> [#uses=1] 359 %Z = zext i8 %Y to i32 ; <i32> [#uses=1] 360 ret i32 %Z 361 ; CHECK: @test42 362 ; CHECK: %Z = and i32 %X, 255 363 } 364 365 ; rdar://6598839 366 define zeroext i64 @test43(i8 zeroext %on_off) nounwind readonly { 367 %A = zext i8 %on_off to i32 368 %B = add i32 %A, -1 369 %C = sext i32 %B to i64 370 ret i64 %C ;; Should be (add (zext i8 -> i64), -1) 371 ; CHECK: @test43 372 ; CHECK-NEXT: %A = zext i8 %on_off to i64 373 ; CHECK-NEXT: %B = add i64 %A, -1 374 ; CHECK-NEXT: ret i64 %B 375 } 376 377 define i64 @test44(i8 %T) { 378 %A = zext i8 %T to i16 379 %B = or i16 %A, 1234 380 %C = zext i16 %B to i64 381 ret i64 %C 382 ; CHECK: @test44 383 ; CHECK-NEXT: %A = zext i8 %T to i64 384 ; CHECK-NEXT: %B = or i64 %A, 1234 385 ; CHECK-NEXT: ret i64 %B 386 } 387 388 define i64 @test45(i8 %A, i64 %Q) { 389 %D = trunc i64 %Q to i32 ;; should be removed 390 %B = sext i8 %A to i32 391 %C = or i32 %B, %D 392 %E = zext i32 %C to i64 393 ret i64 %E 394 ; CHECK: @test45 395 ; CHECK-NEXT: %B = sext i8 %A to i64 396 ; CHECK-NEXT: %C = or i64 %B, %Q 397 ; CHECK-NEXT: %E = and i64 %C, 4294967295 398 ; CHECK-NEXT: ret i64 %E 399 } 400 401 402 define i64 @test46(i64 %A) { 403 %B = trunc i64 %A to i32 404 %C = and i32 %B, 42 405 %D = shl i32 %C, 8 406 %E = zext i32 %D to i64 407 ret i64 %E 408 ; CHECK: @test46 409 ; CHECK-NEXT: %C = shl i64 %A, 8 410 ; CHECK-NEXT: %D = and i64 %C, 10752 411 ; CHECK-NEXT: ret i64 %D 412 } 413 414 define i64 @test47(i8 %A) { 415 %B = sext i8 %A to i32 416 %C = or i32 %B, 42 417 %E = zext i32 %C to i64 418 ret i64 %E 419 ; CHECK: @test47 420 ; CHECK-NEXT: %B = sext i8 %A to i64 421 ; CHECK-NEXT: %C = and i64 %B, 4294967253 422 ; CHECK-NEXT: %E = or i64 %C, 42 423 ; CHECK-NEXT: ret i64 %E 424 } 425 426 define i64 @test48(i8 %A, i8 %a) { 427 %b = zext i8 %a to i32 428 %B = zext i8 %A to i32 429 %C = shl i32 %B, 8 430 %D = or i32 %C, %b 431 %E = zext i32 %D to i64 432 ret i64 %E 433 ; CHECK: @test48 434 ; CHECK-NEXT: %b = zext i8 %a to i64 435 ; CHECK-NEXT: %B = zext i8 %A to i64 436 ; CHECK-NEXT: %C = shl nuw nsw i64 %B, 8 437 ; CHECK-NEXT: %D = or i64 %C, %b 438 ; CHECK-NEXT: ret i64 %D 439 } 440 441 define i64 @test49(i64 %A) { 442 %B = trunc i64 %A to i32 443 %C = or i32 %B, 1 444 %D = sext i32 %C to i64 445 ret i64 %D 446 ; CHECK: @test49 447 ; CHECK-NEXT: %C = shl i64 %A, 32 448 ; CHECK-NEXT: ashr exact i64 %C, 32 449 ; CHECK-NEXT: %D = or i64 {{.*}}, 1 450 ; CHECK-NEXT: ret i64 %D 451 } 452 453 define i64 @test50(i64 %A) { 454 %a = lshr i64 %A, 2 455 %B = trunc i64 %a to i32 456 %D = add i32 %B, -1 457 %E = sext i32 %D to i64 458 ret i64 %E 459 ; CHECK: @test50 460 ; CHECK-NEXT: shl i64 %A, 30 461 ; CHECK-NEXT: add i64 {{.*}}, -4294967296 462 ; CHECK-NEXT: %sext = ashr i64 {{.*}}, 32 463 ; CHECK-NEXT: ret i64 %sext 464 } 465 466 define i64 @test51(i64 %A, i1 %cond) { 467 %B = trunc i64 %A to i32 468 %C = and i32 %B, -2 469 %D = or i32 %B, 1 470 %E = select i1 %cond, i32 %C, i32 %D 471 %F = sext i32 %E to i64 472 ret i64 %F 473 ; CHECK: @test51 474 475 ; FIXME: disabled, see PR5997 476 ; HECK-NEXT: %C = and i64 %A, 4294967294 477 ; HECK-NEXT: %D = or i64 %A, 1 478 ; HECK-NEXT: %E = select i1 %cond, i64 %C, i64 %D 479 ; HECK-NEXT: %sext = shl i64 %E, 32 480 ; HECK-NEXT: %F = ashr i64 %sext, 32 481 ; HECK-NEXT: ret i64 %F 482 } 483 484 define i32 @test52(i64 %A) { 485 %B = trunc i64 %A to i16 486 %C = or i16 %B, -32574 487 %D = and i16 %C, -25350 488 %E = zext i16 %D to i32 489 ret i32 %E 490 ; CHECK: @test52 491 ; CHECK-NEXT: %B = trunc i64 %A to i32 492 ; CHECK-NEXT: %C = and i32 %B, 7224 493 ; CHECK-NEXT: %D = or i32 %C, 32962 494 ; CHECK-NEXT: ret i32 %D 495 } 496 497 define i64 @test53(i32 %A) { 498 %B = trunc i32 %A to i16 499 %C = or i16 %B, -32574 500 %D = and i16 %C, -25350 501 %E = zext i16 %D to i64 502 ret i64 %E 503 ; CHECK: @test53 504 ; CHECK-NEXT: %B = zext i32 %A to i64 505 ; CHECK-NEXT: %C = and i64 %B, 7224 506 ; CHECK-NEXT: %D = or i64 %C, 32962 507 ; CHECK-NEXT: ret i64 %D 508 } 509 510 define i32 @test54(i64 %A) { 511 %B = trunc i64 %A to i16 512 %C = or i16 %B, -32574 513 %D = and i16 %C, -25350 514 %E = sext i16 %D to i32 515 ret i32 %E 516 ; CHECK: @test54 517 ; CHECK-NEXT: %B = trunc i64 %A to i32 518 ; CHECK-NEXT: %C = and i32 %B, 7224 519 ; CHECK-NEXT: %D = or i32 %C, -32574 520 ; CHECK-NEXT: ret i32 %D 521 } 522 523 define i64 @test55(i32 %A) { 524 %B = trunc i32 %A to i16 525 %C = or i16 %B, -32574 526 %D = and i16 %C, -25350 527 %E = sext i16 %D to i64 528 ret i64 %E 529 ; CHECK: @test55 530 ; CHECK-NEXT: %B = zext i32 %A to i64 531 ; CHECK-NEXT: %C = and i64 %B, 7224 532 ; CHECK-NEXT: %D = or i64 %C, -32574 533 ; CHECK-NEXT: ret i64 %D 534 } 535 536 define i64 @test56(i16 %A) nounwind { 537 %tmp353 = sext i16 %A to i32 538 %tmp354 = lshr i32 %tmp353, 5 539 %tmp355 = zext i32 %tmp354 to i64 540 ret i64 %tmp355 541 ; CHECK: @test56 542 ; CHECK-NEXT: %tmp353 = sext i16 %A to i64 543 ; CHECK-NEXT: %tmp354 = lshr i64 %tmp353, 5 544 ; CHECK-NEXT: %tmp355 = and i64 %tmp354, 134217727 545 ; CHECK-NEXT: ret i64 %tmp355 546 } 547 548 define i64 @test57(i64 %A) nounwind { 549 %B = trunc i64 %A to i32 550 %C = lshr i32 %B, 8 551 %E = zext i32 %C to i64 552 ret i64 %E 553 ; CHECK: @test57 554 ; CHECK-NEXT: %C = lshr i64 %A, 8 555 ; CHECK-NEXT: %E = and i64 %C, 16777215 556 ; CHECK-NEXT: ret i64 %E 557 } 558 559 define i64 @test58(i64 %A) nounwind { 560 %B = trunc i64 %A to i32 561 %C = lshr i32 %B, 8 562 %D = or i32 %C, 128 563 %E = zext i32 %D to i64 564 ret i64 %E 565 566 ; CHECK: @test58 567 ; CHECK-NEXT: %C = lshr i64 %A, 8 568 ; CHECK-NEXT: %D = and i64 %C, 16777087 569 ; CHECK-NEXT: %E = or i64 %D, 128 570 ; CHECK-NEXT: ret i64 %E 571 } 572 573 define i64 @test59(i8 %A, i8 %B) nounwind { 574 %C = zext i8 %A to i32 575 %D = shl i32 %C, 4 576 %E = and i32 %D, 48 577 %F = zext i8 %B to i32 578 %G = lshr i32 %F, 4 579 %H = or i32 %G, %E 580 %I = zext i32 %H to i64 581 ret i64 %I 582 ; CHECK: @test59 583 ; CHECK-NEXT: %C = zext i8 %A to i64 584 ; CHECK-NOT: i32 585 ; CHECK: %F = zext i8 %B to i64 586 ; CHECK-NOT: i32 587 ; CHECK: ret i64 %H 588 } 589 590 define <3 x i32> @test60(<4 x i32> %call4) nounwind { 591 %tmp11 = bitcast <4 x i32> %call4 to i128 592 %tmp9 = trunc i128 %tmp11 to i96 593 %tmp10 = bitcast i96 %tmp9 to <3 x i32> 594 ret <3 x i32> %tmp10 595 596 ; CHECK: @test60 597 ; CHECK-NEXT: shufflevector 598 ; CHECK-NEXT: ret 599 } 600 601 define <4 x i32> @test61(<3 x i32> %call4) nounwind { 602 %tmp11 = bitcast <3 x i32> %call4 to i96 603 %tmp9 = zext i96 %tmp11 to i128 604 %tmp10 = bitcast i128 %tmp9 to <4 x i32> 605 ret <4 x i32> %tmp10 606 ; CHECK: @test61 607 ; CHECK-NEXT: shufflevector 608 ; CHECK-NEXT: ret 609 } 610 611 define <4 x i32> @test62(<3 x float> %call4) nounwind { 612 %tmp11 = bitcast <3 x float> %call4 to i96 613 %tmp9 = zext i96 %tmp11 to i128 614 %tmp10 = bitcast i128 %tmp9 to <4 x i32> 615 ret <4 x i32> %tmp10 616 ; CHECK: @test62 617 ; CHECK-NEXT: bitcast 618 ; CHECK-NEXT: shufflevector 619 ; CHECK-NEXT: ret 620 } 621 622 ; PR7311 - Don't create invalid IR on scalar->vector cast. 623 define <2 x float> @test63(i64 %tmp8) nounwind { 624 entry: 625 %a = bitcast i64 %tmp8 to <2 x i32> 626 %vcvt.i = uitofp <2 x i32> %a to <2 x float> 627 ret <2 x float> %vcvt.i 628 ; CHECK: @test63 629 ; CHECK: bitcast 630 ; CHECK: uitofp 631 } 632 633
