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-p1:32:32:32-p2:64:64:64-p3:64:64:64-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-LABEL: @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-LABEL: @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-LABEL: @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-LABEL: @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-LABEL: @test43( 372 ; CHECK-NEXT: %A = zext i8 %on_off to i64 373 ; CHECK-NEXT: %B = add nsw 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-LABEL: @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-LABEL: @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-LABEL: @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-LABEL: @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-LABEL: @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-LABEL: @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-LABEL: @test50( 460 ; lshr+shl will be handled by DAGCombine. 461 ; CHECK-NEXT: lshr i64 %A, 2 462 ; CHECK-NEXT: shl i64 %a, 32 463 ; CHECK-NEXT: add i64 {{.*}}, -4294967296 464 ; CHECK-NEXT: %E = ashr exact i64 {{.*}}, 32 465 ; CHECK-NEXT: ret i64 %E 466 } 467 468 define i64 @test51(i64 %A, i1 %cond) { 469 %B = trunc i64 %A to i32 470 %C = and i32 %B, -2 471 %D = or i32 %B, 1 472 %E = select i1 %cond, i32 %C, i32 %D 473 %F = sext i32 %E to i64 474 ret i64 %F 475 ; CHECK-LABEL: @test51( 476 ; CHECK-NEXT: %C = and i64 %A, 4294967294 477 ; CHECK-NEXT: %D = or i64 %A, 1 478 ; CHECK-NEXT: %E = select i1 %cond, i64 %C, i64 %D 479 ; CHECK-NEXT: %sext = shl i64 %E, 32 480 ; CHECK-NEXT: %F = ashr exact i64 %sext, 32 481 ; CHECK-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-LABEL: @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-LABEL: @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-LABEL: @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-LABEL: @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-LABEL: @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-LABEL: @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-LABEL: @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-LABEL: @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-LABEL: @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-LABEL: @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-LABEL: @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-LABEL: @test63( 629 ; CHECK: bitcast 630 ; CHECK: uitofp 631 } 632 633 define <4 x float> @test64(<4 x float> %c) nounwind { 634 %t0 = bitcast <4 x float> %c to <4 x i32> 635 %t1 = bitcast <4 x i32> %t0 to <4 x float> 636 ret <4 x float> %t1 637 ; CHECK-LABEL: @test64( 638 ; CHECK-NEXT: ret <4 x float> %c 639 } 640 641 define <4 x float> @test65(<4 x float> %c) nounwind { 642 %t0 = bitcast <4 x float> %c to <2 x double> 643 %t1 = bitcast <2 x double> %t0 to <4 x float> 644 ret <4 x float> %t1 645 ; CHECK-LABEL: @test65( 646 ; CHECK-NEXT: ret <4 x float> %c 647 } 648 649 define <2 x float> @test66(<2 x float> %c) nounwind { 650 %t0 = bitcast <2 x float> %c to double 651 %t1 = bitcast double %t0 to <2 x float> 652 ret <2 x float> %t1 653 ; CHECK-LABEL: @test66( 654 ; CHECK-NEXT: ret <2 x float> %c 655 } 656 657 define float @test2c() { 658 ret float extractelement (<2 x float> bitcast (double bitcast (<2 x float> <float -1.000000e+00, float -1.000000e+00> to double) to <2 x float>), i32 0) 659 ; CHECK-LABEL: @test2c( 660 ; CHECK-NOT: extractelement 661 } 662 663 define i64 @test_mmx(<2 x i32> %c) nounwind { 664 %A = bitcast <2 x i32> %c to x86_mmx 665 %B = bitcast x86_mmx %A to <2 x i32> 666 %C = bitcast <2 x i32> %B to i64 667 ret i64 %C 668 ; CHECK-LABEL: @test_mmx( 669 ; CHECK-NOT: x86_mmx 670 } 671 672 define i64 @test_mmx_const(<2 x i32> %c) nounwind { 673 %A = bitcast <2 x i32> zeroinitializer to x86_mmx 674 %B = bitcast x86_mmx %A to <2 x i32> 675 %C = bitcast <2 x i32> %B to i64 676 ret i64 %C 677 ; CHECK-LABEL: @test_mmx_const( 678 ; CHECK-NOT: x86_mmx 679 } 680 681 ; PR12514 682 define i1 @test67(i1 %a, i32 %b) { 683 %tmp2 = zext i1 %a to i32 684 %conv6 = xor i32 %tmp2, 1 685 %and = and i32 %b, %conv6 686 %sext = shl nuw nsw i32 %and, 24 687 %neg.i = xor i32 %sext, -16777216 688 %conv.i.i = ashr exact i32 %neg.i, 24 689 %trunc = trunc i32 %conv.i.i to i8 690 %tobool.i = icmp eq i8 %trunc, 0 691 ret i1 %tobool.i 692 ; CHECK-LABEL: @test67( 693 ; CHECK: ret i1 false 694 } 695 696 %s = type { i32, i32, i32 } 697 698 define %s @test68(%s *%p, i64 %i) { 699 ; CHECK-LABEL: @test68( 700 %o = mul i64 %i, 12 701 %q = bitcast %s* %p to i8* 702 %pp = getelementptr inbounds i8* %q, i64 %o 703 ; CHECK-NEXT: getelementptr %s* 704 %r = bitcast i8* %pp to %s* 705 %l = load %s* %r 706 ; CHECK-NEXT: load %s* 707 ret %s %l 708 ; CHECK-NEXT: ret %s 709 } 710 711 ; addrspacecasts should be eliminated. 712 define %s @test68_addrspacecast(%s* %p, i64 %i) { 713 ; CHECK-LABEL: @test68_addrspacecast( 714 ; CHECK-NEXT: getelementptr %s* 715 ; CHECK-NEXT: load %s* 716 ; CHECK-NEXT: ret %s 717 %o = mul i64 %i, 12 718 %q = addrspacecast %s* %p to i8 addrspace(2)* 719 %pp = getelementptr inbounds i8 addrspace(2)* %q, i64 %o 720 %r = addrspacecast i8 addrspace(2)* %pp to %s* 721 %l = load %s* %r 722 ret %s %l 723 } 724 725 define %s @test68_addrspacecast_2(%s* %p, i64 %i) { 726 ; CHECK-LABEL: @test68_addrspacecast_2( 727 ; CHECK-NEXT: getelementptr %s* %p 728 ; CHECK-NEXT: addrspacecast 729 ; CHECK-NEXT: load %s addrspace(1)* 730 ; CHECK-NEXT: ret %s 731 %o = mul i64 %i, 12 732 %q = addrspacecast %s* %p to i8 addrspace(2)* 733 %pp = getelementptr inbounds i8 addrspace(2)* %q, i64 %o 734 %r = addrspacecast i8 addrspace(2)* %pp to %s addrspace(1)* 735 %l = load %s addrspace(1)* %r 736 ret %s %l 737 } 738 739 define %s @test68_as1(%s addrspace(1)* %p, i32 %i) { 740 ; CHECK-LABEL: @test68_as1( 741 %o = mul i32 %i, 12 742 %q = bitcast %s addrspace(1)* %p to i8 addrspace(1)* 743 %pp = getelementptr inbounds i8 addrspace(1)* %q, i32 %o 744 ; CHECK-NEXT: getelementptr %s addrspace(1)* 745 %r = bitcast i8 addrspace(1)* %pp to %s addrspace(1)* 746 %l = load %s addrspace(1)* %r 747 ; CHECK-NEXT: load %s addrspace(1)* 748 ret %s %l 749 ; CHECK-NEXT: ret %s 750 } 751 752 define double @test69(double *%p, i64 %i) { 753 ; CHECK-LABEL: @test69( 754 %o = shl nsw i64 %i, 3 755 %q = bitcast double* %p to i8* 756 %pp = getelementptr inbounds i8* %q, i64 %o 757 ; CHECK-NEXT: getelementptr inbounds double* 758 %r = bitcast i8* %pp to double* 759 %l = load double* %r 760 ; CHECK-NEXT: load double* 761 ret double %l 762 ; CHECK-NEXT: ret double 763 } 764 765 define %s @test70(%s *%p, i64 %i) { 766 ; CHECK-LABEL: @test70( 767 %o = mul nsw i64 %i, 36 768 ; CHECK-NEXT: mul nsw i64 %i, 3 769 %q = bitcast %s* %p to i8* 770 %pp = getelementptr inbounds i8* %q, i64 %o 771 ; CHECK-NEXT: getelementptr inbounds %s* 772 %r = bitcast i8* %pp to %s* 773 %l = load %s* %r 774 ; CHECK-NEXT: load %s* 775 ret %s %l 776 ; CHECK-NEXT: ret %s 777 } 778 779 define double @test71(double *%p, i64 %i) { 780 ; CHECK-LABEL: @test71( 781 %o = shl i64 %i, 5 782 ; CHECK-NEXT: shl i64 %i, 2 783 %q = bitcast double* %p to i8* 784 %pp = getelementptr i8* %q, i64 %o 785 ; CHECK-NEXT: getelementptr double* 786 %r = bitcast i8* %pp to double* 787 %l = load double* %r 788 ; CHECK-NEXT: load double* 789 ret double %l 790 ; CHECK-NEXT: ret double 791 } 792 793 define double @test72(double *%p, i32 %i) { 794 ; CHECK-LABEL: @test72( 795 %so = mul nsw i32 %i, 8 796 %o = sext i32 %so to i64 797 ; CHECK-NEXT: sext i32 %i to i64 798 %q = bitcast double* %p to i8* 799 %pp = getelementptr inbounds i8* %q, i64 %o 800 ; CHECK-NEXT: getelementptr inbounds double* 801 %r = bitcast i8* %pp to double* 802 %l = load double* %r 803 ; CHECK-NEXT: load double* 804 ret double %l 805 ; CHECK-NEXT: ret double 806 } 807 808 define double @test73(double *%p, i128 %i) { 809 ; CHECK-LABEL: @test73( 810 %lo = mul nsw i128 %i, 8 811 %o = trunc i128 %lo to i64 812 ; CHECK-NEXT: trunc i128 %i to i64 813 %q = bitcast double* %p to i8* 814 %pp = getelementptr inbounds i8* %q, i64 %o 815 ; CHECK-NEXT: getelementptr double* 816 %r = bitcast i8* %pp to double* 817 %l = load double* %r 818 ; CHECK-NEXT: load double* 819 ret double %l 820 ; CHECK-NEXT: ret double 821 } 822 823 define double @test74(double *%p, i64 %i) { 824 ; CHECK-LABEL: @test74( 825 %q = bitcast double* %p to i64* 826 %pp = getelementptr inbounds i64* %q, i64 %i 827 ; CHECK-NEXT: getelementptr inbounds double* 828 %r = bitcast i64* %pp to double* 829 %l = load double* %r 830 ; CHECK-NEXT: load double* 831 ret double %l 832 ; CHECK-NEXT: ret double 833 } 834 835 define i32* @test75(i32* %p, i32 %x) { 836 ; CHECK-LABEL: @test75( 837 %y = shl i32 %x, 3 838 ; CHECK-NEXT: shl i32 %x, 3 839 %z = sext i32 %y to i64 840 ; CHECK-NEXT: sext i32 %y to i64 841 %q = bitcast i32* %p to i8* 842 %r = getelementptr i8* %q, i64 %z 843 %s = bitcast i8* %r to i32* 844 ret i32* %s 845 } 846 847 define %s @test76(%s *%p, i64 %i, i64 %j) { 848 ; CHECK-LABEL: @test76( 849 %o = mul i64 %i, 12 850 %o2 = mul nsw i64 %o, %j 851 ; CHECK-NEXT: %o2 = mul i64 %i, %j 852 %q = bitcast %s* %p to i8* 853 %pp = getelementptr inbounds i8* %q, i64 %o2 854 ; CHECK-NEXT: getelementptr %s* %p, i64 %o2 855 %r = bitcast i8* %pp to %s* 856 %l = load %s* %r 857 ; CHECK-NEXT: load %s* 858 ret %s %l 859 ; CHECK-NEXT: ret %s 860 } 861 862 define %s @test77(%s *%p, i64 %i, i64 %j) { 863 ; CHECK-LABEL: @test77( 864 %o = mul nsw i64 %i, 36 865 %o2 = mul nsw i64 %o, %j 866 ; CHECK-NEXT: %o = mul nsw i64 %i, 3 867 ; CHECK-NEXT: %o2 = mul nsw i64 %o, %j 868 %q = bitcast %s* %p to i8* 869 %pp = getelementptr inbounds i8* %q, i64 %o2 870 ; CHECK-NEXT: getelementptr inbounds %s* %p, i64 %o2 871 %r = bitcast i8* %pp to %s* 872 %l = load %s* %r 873 ; CHECK-NEXT: load %s* 874 ret %s %l 875 ; CHECK-NEXT: ret %s 876 } 877 878 define %s @test78(%s *%p, i64 %i, i64 %j, i32 %k, i32 %l, i128 %m, i128 %n) { 879 ; CHECK-LABEL: @test78( 880 %a = mul nsw i32 %k, 36 881 ; CHECK-NEXT: mul nsw i32 %k, 3 882 %b = mul nsw i32 %a, %l 883 ; CHECK-NEXT: mul nsw i32 %a, %l 884 %c = sext i32 %b to i128 885 ; CHECK-NEXT: sext i32 %b to i128 886 %d = mul nsw i128 %c, %m 887 ; CHECK-NEXT: mul nsw i128 %c, %m 888 %e = mul i128 %d, %n 889 ; CHECK-NEXT: mul i128 %d, %n 890 %f = trunc i128 %e to i64 891 ; CHECK-NEXT: trunc i128 %e to i64 892 %g = mul nsw i64 %f, %i 893 ; CHECK-NEXT: mul i64 %f, %i 894 %h = mul nsw i64 %g, %j 895 ; CHECK-NEXT: mul i64 %g, %j 896 %q = bitcast %s* %p to i8* 897 %pp = getelementptr inbounds i8* %q, i64 %h 898 ; CHECK-NEXT: getelementptr %s* %p, i64 %h 899 %r = bitcast i8* %pp to %s* 900 %load = load %s* %r 901 ; CHECK-NEXT: load %s* 902 ret %s %load 903 ; CHECK-NEXT: ret %s 904 } 905 906 define %s @test79(%s *%p, i64 %i, i32 %j) { 907 ; CHECK-LABEL: @test79( 908 %a = mul nsw i64 %i, 36 909 ; CHECK: mul nsw i64 %i, 36 910 %b = trunc i64 %a to i32 911 %c = mul i32 %b, %j 912 %q = bitcast %s* %p to i8* 913 ; CHECK: bitcast 914 %pp = getelementptr inbounds i8* %q, i32 %c 915 %r = bitcast i8* %pp to %s* 916 %l = load %s* %r 917 ret %s %l 918 } 919 920 define double @test80([100 x double]* %p, i32 %i) { 921 ; CHECK-LABEL: @test80( 922 %tmp = mul nsw i32 %i, 8 923 ; CHECK-NEXT: sext i32 %i to i64 924 %q = bitcast [100 x double]* %p to i8* 925 %pp = getelementptr i8* %q, i32 %tmp 926 ; CHECK-NEXT: getelementptr [100 x double]* 927 %r = bitcast i8* %pp to double* 928 %l = load double* %r 929 ; CHECK-NEXT: load double* 930 ret double %l 931 ; CHECK-NEXT: ret double 932 } 933 934 define double @test80_addrspacecast([100 x double] addrspace(1)* %p, i32 %i) { 935 ; CHECK-LABEL: @test80_addrspacecast( 936 ; CHECK-NEXT: getelementptr [100 x double] addrspace(1)* %p 937 ; CHECK-NEXT: load double addrspace(1)* 938 ; CHECK-NEXT: ret double 939 %tmp = mul nsw i32 %i, 8 940 %q = addrspacecast [100 x double] addrspace(1)* %p to i8 addrspace(2)* 941 %pp = getelementptr i8 addrspace(2)* %q, i32 %tmp 942 %r = addrspacecast i8 addrspace(2)* %pp to double addrspace(1)* 943 %l = load double addrspace(1)* %r 944 ret double %l 945 } 946 947 define double @test80_addrspacecast_2([100 x double] addrspace(1)* %p, i32 %i) { 948 ; CHECK-LABEL: @test80_addrspacecast_2( 949 ; CHECK-NEXT: getelementptr [100 x double] addrspace(1)* 950 ; CHECK-NEXT: addrspacecast double addrspace(1)* 951 ; CHECK-NEXT: load double addrspace(3)* 952 ; CHECK-NEXT: ret double 953 %tmp = mul nsw i32 %i, 8 954 %q = addrspacecast [100 x double] addrspace(1)* %p to i8 addrspace(2)* 955 %pp = getelementptr i8 addrspace(2)* %q, i32 %tmp 956 %r = addrspacecast i8 addrspace(2)* %pp to double addrspace(3)* 957 %l = load double addrspace(3)* %r 958 ret double %l 959 } 960 961 define double @test80_as1([100 x double] addrspace(1)* %p, i16 %i) { 962 ; CHECK-LABEL: @test80_as1( 963 %tmp = mul nsw i16 %i, 8 964 ; CHECK-NEXT: sext i16 %i to i32 965 %q = bitcast [100 x double] addrspace(1)* %p to i8 addrspace(1)* 966 %pp = getelementptr i8 addrspace(1)* %q, i16 %tmp 967 ; CHECK-NEXT: getelementptr [100 x double] addrspace(1)* 968 %r = bitcast i8 addrspace(1)* %pp to double addrspace(1)* 969 %l = load double addrspace(1)* %r 970 ; CHECK-NEXT: load double addrspace(1)* 971 ret double %l 972 ; CHECK-NEXT: ret double 973 } 974 975 define double @test81(double *%p, float %f) { 976 %i = fptosi float %f to i64 977 %q = bitcast double* %p to i8* 978 %pp = getelementptr i8* %q, i64 %i 979 %r = bitcast i8* %pp to double* 980 %l = load double* %r 981 ret double %l 982 } 983 984 define i64 @test82(i64 %A) nounwind { 985 %B = trunc i64 %A to i32 986 %C = lshr i32 %B, 8 987 %D = shl i32 %C, 9 988 %E = zext i32 %D to i64 989 ret i64 %E 990 991 ; CHECK-LABEL: @test82( 992 ; CHECK-NEXT: [[REG:%[0-9]*]] = shl i64 %A, 1 993 ; CHECK-NEXT: %E = and i64 [[REG]], 4294966784 994 ; CHECK-NEXT: ret i64 %E 995 } 996 997 ; PR15959 998 define i64 @test83(i16 %a, i64 %k) { 999 %conv = sext i16 %a to i32 1000 %sub = add nsw i64 %k, -1 1001 %sh_prom = trunc i64 %sub to i32 1002 %shl = shl i32 %conv, %sh_prom 1003 %sh_prom1 = zext i32 %shl to i64 1004 ret i64 %sh_prom1 1005 1006 ; CHECK-LABEL: @test83( 1007 ; CHECK: %sub = add nsw i64 %k, 4294967295 1008 ; CHECK: %sh_prom = trunc i64 %sub to i32 1009 ; CHECK: %shl = shl i32 %conv, %sh_prom 1010 } 1011
