1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; Tests to make sure elimination of casts is working correctly 3; RUN: opt < %s -passes=instcombine -S -data-layout="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" | FileCheck %s --check-prefixes=ALL,BE 4; RUN: opt < %s -passes=instcombine -S -data-layout="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" | FileCheck %s --check-prefixes=ALL,LE 5; RUN: opt < %s -passes=instcombine -S -data-layout="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" -use-constant-fp-for-fixed-length-splat -use-constant-int-for-fixed-length-splat | FileCheck %s --check-prefixes=ALL,BE 6; RUN: opt < %s -passes=instcombine -S -data-layout="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" -use-constant-fp-for-fixed-length-splat -use-constant-int-for-fixed-length-splat | FileCheck %s --check-prefixes=ALL,LE 7 8declare void @use_i32(i32) 9declare void @use_v2i32(<2 x i32>) 10 11@inbuf = external global [32832 x i8] 12 13define i32 @test1(i32 %A) { 14; ALL-LABEL: @test1( 15; ALL-NEXT: ret i32 [[A:%.*]] 16; 17 %c1 = bitcast i32 %A to i32 18 %c2 = bitcast i32 %c1 to i32 19 ret i32 %c2 20} 21 22define i64 @test2(i8 %A) { 23; ALL-LABEL: @test2( 24; ALL-NEXT: [[RET:%.*]] = zext i8 [[A:%.*]] to i64 25; ALL-NEXT: ret i64 [[RET]] 26; 27 %c1 = zext i8 %A to i16 28 %c2 = zext i16 %c1 to i32 29 %Ret = zext i32 %c2 to i64 30 ret i64 %Ret 31} 32 33define i64 @test3(i64 %A) { 34; ALL-LABEL: @test3( 35; ALL-NEXT: [[C2:%.*]] = and i64 [[A:%.*]], 255 36; ALL-NEXT: ret i64 [[C2]] 37; 38 %c1 = trunc i64 %A to i8 39 %c2 = zext i8 %c1 to i64 40 ret i64 %c2 41} 42 43define i32 @test4(i32 %A, i32 %B) { 44; ALL-LABEL: @test4( 45; ALL-NEXT: [[COND:%.*]] = icmp slt i32 [[A:%.*]], [[B:%.*]] 46; ALL-NEXT: [[RESULT:%.*]] = zext i1 [[COND]] to i32 47; ALL-NEXT: ret i32 [[RESULT]] 48; 49 %COND = icmp slt i32 %A, %B 50 %c = zext i1 %COND to i8 51 %result = zext i8 %c to i32 52 ret i32 %result 53} 54 55define i32 @test5(i1 %B) { 56; ALL-LABEL: @test5( 57; ALL-NEXT: [[RESULT:%.*]] = zext i1 [[B:%.*]] to i32 58; ALL-NEXT: ret i32 [[RESULT]] 59; 60 %c = zext i1 %B to i8 61 %result = zext i8 %c to i32 62 ret i32 %result 63} 64 65define i32 @test6(i64 %A) { 66; ALL-LABEL: @test6( 67; ALL-NEXT: [[C1:%.*]] = trunc i64 [[A:%.*]] to i32 68; ALL-NEXT: ret i32 [[C1]] 69; 70 %c1 = trunc i64 %A to i32 71 %res = bitcast i32 %c1 to i32 72 ret i32 %res 73} 74 75define i64 @test7(i1 %A) { 76; ALL-LABEL: @test7( 77; ALL-NEXT: [[RES:%.*]] = zext i1 [[A:%.*]] to i64 78; ALL-NEXT: ret i64 [[RES]] 79; 80 %c1 = zext i1 %A to i32 81 %res = sext i32 %c1 to i64 82 ret i64 %res 83} 84 85define i64 @test8(i8 %A) { 86; ALL-LABEL: @test8( 87; ALL-NEXT: [[C1:%.*]] = sext i8 [[A:%.*]] to i64 88; ALL-NEXT: ret i64 [[C1]] 89; 90 %c1 = sext i8 %A to i64 91 %res = bitcast i64 %c1 to i64 92 ret i64 %res 93} 94 95define i16 @test9(i16 %A) { 96; ALL-LABEL: @test9( 97; ALL-NEXT: ret i16 [[A:%.*]] 98; 99 %c1 = sext i16 %A to i32 100 %c2 = trunc i32 %c1 to i16 101 ret i16 %c2 102} 103 104define i16 @test10(i16 %A) { 105; ALL-LABEL: @test10( 106; ALL-NEXT: ret i16 [[A:%.*]] 107; 108 %c1 = sext i16 %A to i32 109 %c2 = trunc i32 %c1 to i16 110 ret i16 %c2 111} 112 113declare void @varargs(i32, ...) 114 115define void @test11(ptr %P) { 116; ALL-LABEL: @test11( 117; ALL-NEXT: call void (i32, ...) @varargs(i32 5, ptr [[P:%.*]]) 118; ALL-NEXT: ret void 119; 120 call void (i32, ...) @varargs( i32 5, ptr %P ) 121 ret void 122} 123 124declare i32 @__gxx_personality_v0(...) 125define void @test_invoke_vararg_cast(ptr %a, ptr %b) personality ptr @__gxx_personality_v0 { 126; ALL-LABEL: @test_invoke_vararg_cast( 127; ALL-NEXT: entry: 128; ALL-NEXT: invoke void (i32, ...) @varargs(i32 1, ptr [[B:%.*]], ptr [[A:%.*]]) 129; ALL-NEXT: to label [[INVOKE_CONT:%.*]] unwind label [[LPAD:%.*]] 130; ALL: invoke.cont: 131; ALL-NEXT: ret void 132; ALL: lpad: 133; ALL-NEXT: [[TMP0:%.*]] = landingpad { ptr, i32 } 134; ALL-NEXT: cleanup 135; ALL-NEXT: ret void 136; 137entry: 138 invoke void (i32, ...) @varargs(i32 1, ptr %b, ptr %a) 139 to label %invoke.cont unwind label %lpad 140 141invoke.cont: 142 ret void 143 144lpad: 145 %0 = landingpad { ptr, i32 } 146 cleanup 147 ret void 148} 149 150define ptr @test13(i64 %A) { 151; ALL-LABEL: @test13( 152; ALL-NEXT: [[C:%.*]] = getelementptr [0 x i8], ptr @inbuf, i64 0, i64 [[A:%.*]] 153; ALL-NEXT: ret ptr [[C]] 154; 155 %c = getelementptr [0 x i8], ptr @inbuf, i64 0, i64 %A 156 ret ptr %c 157} 158 159define i1 @test14(i8 %A) { 160; ALL-LABEL: @test14( 161; ALL-NEXT: [[X:%.*]] = icmp sgt i8 [[A:%.*]], -1 162; ALL-NEXT: ret i1 [[X]] 163; 164 %c = bitcast i8 %A to i8 165 %X = icmp ult i8 %c, -128 166 ret i1 %X 167} 168 169 170; This just won't occur when there's no difference between ubyte and sbyte 171;bool %test15(ubyte %A) { 172; %c = cast ubyte %A to sbyte 173; %X = setlt sbyte %c, 0 ; setgt %A, 127 174; ret bool %X 175;} 176 177define i1 @test16(ptr %P) { 178; ALL-LABEL: @test16( 179; ALL-NEXT: [[C:%.*]] = icmp ne ptr [[P:%.*]], null 180; ALL-NEXT: ret i1 [[C]] 181; 182 %c = icmp ne ptr %P, null 183 ret i1 %c 184} 185 186define i16 @test17(i1 %x) { 187; ALL-LABEL: @test17( 188; ALL-NEXT: [[T86:%.*]] = zext i1 [[X:%.*]] to i16 189; ALL-NEXT: ret i16 [[T86]] 190; 191 %c = zext i1 %x to i32 192 %t86 = trunc i32 %c to i16 193 ret i16 %t86 194} 195 196define i16 @test18(i8 %x) { 197; ALL-LABEL: @test18( 198; ALL-NEXT: [[T86:%.*]] = sext i8 [[X:%.*]] to i16 199; ALL-NEXT: ret i16 [[T86]] 200; 201 %c = sext i8 %x to i32 202 %t86 = trunc i32 %c to i16 203 ret i16 %t86 204} 205 206define i1 @test19(i32 %X) { 207; ALL-LABEL: @test19( 208; ALL-NEXT: [[Z:%.*]] = icmp slt i32 [[X:%.*]], 12345 209; ALL-NEXT: ret i1 [[Z]] 210; 211 %c = sext i32 %X to i64 212 %Z = icmp slt i64 %c, 12345 213 ret i1 %Z 214} 215 216define <2 x i1> @test19vec(<2 x i32> %X) { 217; ALL-LABEL: @test19vec( 218; ALL-NEXT: [[Z:%.*]] = icmp slt <2 x i32> [[X:%.*]], <i32 12345, i32 2147483647> 219; ALL-NEXT: ret <2 x i1> [[Z]] 220; 221 %c = sext <2 x i32> %X to <2 x i64> 222 %Z = icmp slt <2 x i64> %c, <i64 12345, i64 2147483647> 223 ret <2 x i1> %Z 224} 225 226define <3 x i1> @test19vec2(<3 x i1> %X) { 227; ALL-LABEL: @test19vec2( 228; ALL-NEXT: [[CMPEQ:%.*]] = xor <3 x i1> [[X:%.*]], splat (i1 true) 229; ALL-NEXT: ret <3 x i1> [[CMPEQ]] 230; 231 %sext = sext <3 x i1> %X to <3 x i32> 232 %cmpeq = icmp eq <3 x i32> %sext, zeroinitializer 233 ret <3 x i1> %cmpeq 234} 235 236define i1 @test20(i1 %B) { 237; ALL-LABEL: @test20( 238; ALL-NEXT: ret i1 false 239; 240 %c = zext i1 %B to i32 241 %D = icmp slt i32 %c, -1 242 ret i1 %D 243} 244 245define i32 @test21(i32 %X) { 246; ALL-LABEL: @test21( 247; ALL-NEXT: [[SEXT:%.*]] = and i32 [[X:%.*]], 255 248; ALL-NEXT: ret i32 [[SEXT]] 249; 250 %c1 = trunc i32 %X to i8 251 %c2 = sext i8 %c1 to i32 252 %RV = and i32 %c2, 255 253 ret i32 %RV 254} 255 256define i32 @test22(i32 %X) { 257; ALL-LABEL: @test22( 258; ALL-NEXT: [[SEXT:%.*]] = shl i32 [[X:%.*]], 24 259; ALL-NEXT: ret i32 [[SEXT]] 260; 261 %c1 = trunc i32 %X to i8 262 %c2 = sext i8 %c1 to i32 263 %RV = shl i32 %c2, 24 264 ret i32 %RV 265} 266 267define i32 @test23(i32 %X) { 268; ALL-LABEL: @test23( 269; ALL-NEXT: [[C2:%.*]] = and i32 [[X:%.*]], 65535 270; ALL-NEXT: ret i32 [[C2]] 271; 272 %c1 = trunc i32 %X to i16 273 %c2 = zext i16 %c1 to i32 274 ret i32 %c2 275} 276 277define i1 @test24(i1 %C) { 278; ALL-LABEL: @test24( 279; ALL-NEXT: ret i1 true 280; 281 %X = select i1 %C, i32 14, i32 1234 282 %c = icmp ne i32 %X, 0 283 ret i1 %c 284} 285 286define i32 @test26(float %F) { 287; ALL-LABEL: @test26( 288; ALL-NEXT: [[D:%.*]] = fptosi float [[F:%.*]] to i32 289; ALL-NEXT: ret i32 [[D]] 290; 291 %c = fpext float %F to double 292 %D = fptosi double %c to i32 293 ret i32 %D 294} 295 296define ptr @test27(ptr %A) { 297; ALL-LABEL: @test27( 298; ALL-NEXT: ret ptr [[A:%.*]] 299; 300 ret ptr %A 301} 302 303define ptr @test28(ptr %A) { 304; ALL-LABEL: @test28( 305; ALL-NEXT: ret ptr [[A:%.*]] 306; 307 ret ptr %A 308} 309 310define i32 @test29(i32 %c1, i32 %c2) { 311; ALL-LABEL: @test29( 312; ALL-NEXT: [[T21:%.*]] = or i32 [[C2:%.*]], [[C1:%.*]] 313; ALL-NEXT: [[T10:%.*]] = and i32 [[T21]], 255 314; ALL-NEXT: ret i32 [[T10]] 315; 316 %t1 = trunc i32 %c1 to i8 317 %tmask = trunc i32 %c2 to i8 318 %t2 = or i8 %tmask, %t1 319 %t10 = zext i8 %t2 to i32 320 ret i32 %t10 321} 322 323define i32 @test30(i32 %c1) { 324; ALL-LABEL: @test30( 325; ALL-NEXT: [[C3:%.*]] = and i32 [[C1:%.*]], 255 326; ALL-NEXT: [[C4:%.*]] = xor i32 [[C3]], 1 327; ALL-NEXT: ret i32 [[C4]] 328; 329 %c2 = trunc i32 %c1 to i8 330 %c3 = xor i8 %c2, 1 331 %c4 = zext i8 %c3 to i32 332 ret i32 %c4 333} 334 335define i1 @test31(i64 %A) { 336; ALL-LABEL: @test31( 337; ALL-NEXT: [[C1:%.*]] = and i64 [[A:%.*]], 42 338; ALL-NEXT: [[D:%.*]] = icmp eq i64 [[C1]], 10 339; ALL-NEXT: ret i1 [[D]] 340; 341 %B = trunc i64 %A to i32 342 %C = and i32 %B, 42 343 %D = icmp eq i32 %C, 10 344 ret i1 %D 345} 346 347; FIXME: Vectors should fold too...or not? 348; Does this depend on the whether the source/dest types of the trunc are legal in the data layout? 349define <2 x i1> @test31vec(<2 x i64> %A) { 350; ALL-LABEL: @test31vec( 351; ALL-NEXT: [[B:%.*]] = trunc <2 x i64> [[A:%.*]] to <2 x i32> 352; ALL-NEXT: [[C:%.*]] = and <2 x i32> [[B]], splat (i32 42) 353; ALL-NEXT: [[D:%.*]] = icmp eq <2 x i32> [[C]], splat (i32 10) 354; ALL-NEXT: ret <2 x i1> [[D]] 355; 356 %B = trunc <2 x i64> %A to <2 x i32> 357 %C = and <2 x i32> %B, <i32 42, i32 42> 358 %D = icmp eq <2 x i32> %C, <i32 10, i32 10> 359 ret <2 x i1> %D 360} 361 362; Verify that the 'and' was narrowed, the zext was eliminated, and the compare was narrowed 363; even for vectors. Earlier folds should ensure that the icmp(and(zext)) pattern never occurs. 364 365define <2 x i1> @test32vec(<2 x i8> %A) { 366; ALL-LABEL: @test32vec( 367; ALL-NEXT: [[TMP1:%.*]] = and <2 x i8> [[A:%.*]], splat (i8 42) 368; ALL-NEXT: [[D:%.*]] = icmp eq <2 x i8> [[TMP1]], splat (i8 10) 369; ALL-NEXT: ret <2 x i1> [[D]] 370; 371 %B = zext <2 x i8> %A to <2 x i16> 372 %C = and <2 x i16> %B, <i16 42, i16 42> 373 %D = icmp eq <2 x i16> %C, <i16 10, i16 10> 374 ret <2 x i1> %D 375} 376 377define i32 @test33(i32 %c1) { 378; ALL-LABEL: @test33( 379; ALL-NEXT: ret i32 [[C1:%.*]] 380; 381 %x = bitcast i32 %c1 to float 382 %y = bitcast float %x to i32 383 ret i32 %y 384} 385 386define i16 @test34(i16 %a) { 387; ALL-LABEL: @test34( 388; ALL-NEXT: [[TMP1:%.*]] = lshr i16 [[A:%.*]], 8 389; ALL-NEXT: ret i16 [[TMP1]] 390; 391 %c1 = zext i16 %a to i32 392 %t21 = lshr i32 %c1, 8 393 %c2 = trunc i32 %t21 to i16 394 ret i16 %c2 395} 396 397define i16 @test35(i16 %a) { 398; ALL-LABEL: @test35( 399; ALL-NEXT: [[T2:%.*]] = lshr i16 [[A:%.*]], 8 400; ALL-NEXT: ret i16 [[T2]] 401; 402 %c1 = bitcast i16 %a to i16 403 %t2 = lshr i16 %c1, 8 404 %c2 = bitcast i16 %t2 to i16 405 ret i16 %c2 406} 407 408; rdar://6480391 409define i1 @test36(i32 %a) { 410; ALL-LABEL: @test36( 411; ALL-NEXT: [[D:%.*]] = icmp sgt i32 [[A:%.*]], -1 412; ALL-NEXT: ret i1 [[D]] 413; 414 %b = lshr i32 %a, 31 415 %c = trunc i32 %b to i8 416 %d = icmp eq i8 %c, 0 417 ret i1 %d 418} 419 420define <2 x i1> @test36vec(<2 x i32> %a) { 421; ALL-LABEL: @test36vec( 422; ALL-NEXT: [[D:%.*]] = icmp sgt <2 x i32> [[A:%.*]], splat (i32 -1) 423; ALL-NEXT: ret <2 x i1> [[D]] 424; 425 %b = lshr <2 x i32> %a, <i32 31, i32 31> 426 %c = trunc <2 x i32> %b to <2 x i8> 427 %d = icmp eq <2 x i8> %c, zeroinitializer 428 ret <2 x i1> %d 429} 430 431define i1 @test37(i32 %a) { 432; ALL-LABEL: @test37( 433; ALL-NEXT: ret i1 false 434; 435 %b = lshr i32 %a, 31 436 %c = or i32 %b, 512 437 %d = trunc i32 %c to i8 438 %e = icmp eq i8 %d, 11 439 ret i1 %e 440} 441 442define i64 @test38(i32 %a) { 443; ALL-LABEL: @test38( 444; ALL-NEXT: [[TMP1:%.*]] = icmp ne i32 [[A:%.*]], -2 445; ALL-NEXT: [[TMP2:%.*]] = zext i1 [[TMP1]] to i64 446; ALL-NEXT: ret i64 [[TMP2]] 447; 448 %1 = icmp eq i32 %a, -2 449 %2 = zext i1 %1 to i8 450 %3 = xor i8 %2, 1 451 %4 = zext i8 %3 to i64 452 ret i64 %4 453} 454 455define i16 @test39(i16 %a) { 456; ALL-LABEL: @test39( 457; ALL-NEXT: [[T32:%.*]] = call i16 @llvm.bswap.i16(i16 [[A:%.*]]) 458; ALL-NEXT: ret i16 [[T32]] 459; 460 %t = zext i16 %a to i32 461 %t21 = lshr i32 %t, 8 462 %t5 = shl i32 %t, 8 463 %t32 = or i32 %t21, %t5 464 %r = trunc i32 %t32 to i16 465 ret i16 %r 466} 467 468define i16 @test40(i16 %a) { 469; ALL-LABEL: @test40( 470; ALL-NEXT: [[T21:%.*]] = lshr i16 [[A:%.*]], 9 471; ALL-NEXT: [[T5:%.*]] = shl i16 [[A]], 8 472; ALL-NEXT: [[T32:%.*]] = or disjoint i16 [[T21]], [[T5]] 473; ALL-NEXT: ret i16 [[T32]] 474; 475 %t = zext i16 %a to i32 476 %t21 = lshr i32 %t, 9 477 %t5 = shl i32 %t, 8 478 %t32 = or i32 %t21, %t5 479 %r = trunc i32 %t32 to i16 480 ret i16 %r 481} 482 483define <2 x i16> @test40vec(<2 x i16> %a) { 484; ALL-LABEL: @test40vec( 485; ALL-NEXT: [[T21:%.*]] = lshr <2 x i16> [[A:%.*]], splat (i16 9) 486; ALL-NEXT: [[T5:%.*]] = shl <2 x i16> [[A]], splat (i16 8) 487; ALL-NEXT: [[T32:%.*]] = or disjoint <2 x i16> [[T21]], [[T5]] 488; ALL-NEXT: ret <2 x i16> [[T32]] 489; 490 %t = zext <2 x i16> %a to <2 x i32> 491 %t21 = lshr <2 x i32> %t, <i32 9, i32 9> 492 %t5 = shl <2 x i32> %t, <i32 8, i32 8> 493 %t32 = or <2 x i32> %t21, %t5 494 %r = trunc <2 x i32> %t32 to <2 x i16> 495 ret <2 x i16> %r 496} 497 498define <2 x i16> @test40vec_nonuniform(<2 x i16> %a) { 499; ALL-LABEL: @test40vec_nonuniform( 500; ALL-NEXT: [[T21:%.*]] = lshr <2 x i16> [[A:%.*]], <i16 9, i16 10> 501; ALL-NEXT: [[T5:%.*]] = shl <2 x i16> [[A]], <i16 8, i16 9> 502; ALL-NEXT: [[T32:%.*]] = or disjoint <2 x i16> [[T21]], [[T5]] 503; ALL-NEXT: ret <2 x i16> [[T32]] 504; 505 %t = zext <2 x i16> %a to <2 x i32> 506 %t21 = lshr <2 x i32> %t, <i32 9, i32 10> 507 %t5 = shl <2 x i32> %t, <i32 8, i32 9> 508 %t32 = or <2 x i32> %t21, %t5 509 %r = trunc <2 x i32> %t32 to <2 x i16> 510 ret <2 x i16> %r 511} 512 513define <2 x i16> @test40vec_poison(<2 x i16> %a) { 514; ALL-LABEL: @test40vec_poison( 515; ALL-NEXT: [[T21:%.*]] = lshr <2 x i16> [[A:%.*]], <i16 9, i16 poison> 516; ALL-NEXT: [[T5:%.*]] = shl <2 x i16> [[A]], <i16 8, i16 poison> 517; ALL-NEXT: [[T32:%.*]] = or disjoint <2 x i16> [[T21]], [[T5]] 518; ALL-NEXT: ret <2 x i16> [[T32]] 519; 520 %t = zext <2 x i16> %a to <2 x i32> 521 %t21 = lshr <2 x i32> %t, <i32 9, i32 poison> 522 %t5 = shl <2 x i32> %t, <i32 8, i32 poison> 523 %t32 = or <2 x i32> %t21, %t5 524 %r = trunc <2 x i32> %t32 to <2 x i16> 525 ret <2 x i16> %r 526} 527 528; PR1263 529define ptr @test41(ptr %t1) { 530; ALL-LABEL: @test41( 531; ALL-NEXT: ret ptr [[T1:%.*]] 532; 533 ret ptr %t1 534} 535 536define ptr addrspace(1) @test41_addrspacecast_smaller(ptr %t1) { 537; ALL-LABEL: @test41_addrspacecast_smaller( 538; ALL-NEXT: [[T64:%.*]] = addrspacecast ptr [[T1:%.*]] to ptr addrspace(1) 539; ALL-NEXT: ret ptr addrspace(1) [[T64]] 540; 541 %t64 = addrspacecast ptr %t1 to ptr addrspace(1) 542 ret ptr addrspace(1) %t64 543} 544 545define ptr @test41_addrspacecast_larger(ptr addrspace(1) %t1) { 546; ALL-LABEL: @test41_addrspacecast_larger( 547; ALL-NEXT: [[T64:%.*]] = addrspacecast ptr addrspace(1) [[T1:%.*]] to ptr 548; ALL-NEXT: ret ptr [[T64]] 549; 550 %t64 = addrspacecast ptr addrspace(1) %t1 to ptr 551 ret ptr %t64 552} 553 554define i32 @test42(i32 %X) { 555; ALL-LABEL: @test42( 556; ALL-NEXT: [[Z:%.*]] = and i32 [[X:%.*]], 255 557; ALL-NEXT: ret i32 [[Z]] 558; 559 %Y = trunc i32 %X to i8 560 %Z = zext i8 %Y to i32 561 ret i32 %Z 562} 563 564; rdar://6598839 565define zeroext i64 @test43(i8 zeroext %on_off) { 566; ALL-LABEL: @test43( 567; ALL-NEXT: [[A:%.*]] = zext i8 [[ON_OFF:%.*]] to i64 568; ALL-NEXT: [[B:%.*]] = add nsw i64 [[A]], -1 569; ALL-NEXT: ret i64 [[B]] 570; 571 %A = zext i8 %on_off to i32 572 %B = add i32 %A, -1 573 %C = sext i32 %B to i64 574 ret i64 %C ;; Should be (add (zext i8 -> i64), -1) 575} 576 577define i64 @test44(i8 %T) { 578; ALL-LABEL: @test44( 579; ALL-NEXT: [[A:%.*]] = zext i8 [[T:%.*]] to i64 580; ALL-NEXT: [[B:%.*]] = or i64 [[A]], 1234 581; ALL-NEXT: ret i64 [[B]] 582; 583 %A = zext i8 %T to i16 584 %B = or i16 %A, 1234 585 %C = zext i16 %B to i64 586 ret i64 %C 587} 588 589define i64 @test45(i8 %A, i64 %Q) { 590; ALL-LABEL: @test45( 591; ALL-NEXT: [[B:%.*]] = sext i8 [[A:%.*]] to i64 592; ALL-NEXT: [[C:%.*]] = or i64 [[Q:%.*]], [[B]] 593; ALL-NEXT: [[E:%.*]] = and i64 [[C]], 4294967295 594; ALL-NEXT: ret i64 [[E]] 595; 596 %D = trunc i64 %Q to i32 ;; should be removed 597 %B = sext i8 %A to i32 598 %C = or i32 %B, %D 599 %E = zext i32 %C to i64 600 ret i64 %E 601} 602 603 604define i64 @test46(i64 %A) { 605; ALL-LABEL: @test46( 606; ALL-NEXT: [[C:%.*]] = shl i64 [[A:%.*]], 8 607; ALL-NEXT: [[D:%.*]] = and i64 [[C]], 10752 608; ALL-NEXT: ret i64 [[D]] 609; 610 %B = trunc i64 %A to i32 611 %C = and i32 %B, 42 612 %D = shl i32 %C, 8 613 %E = zext i32 %D to i64 614 ret i64 %E 615} 616 617define <2 x i64> @test46vec(<2 x i64> %A) { 618; ALL-LABEL: @test46vec( 619; ALL-NEXT: [[B:%.*]] = trunc <2 x i64> [[A:%.*]] to <2 x i32> 620; ALL-NEXT: [[C:%.*]] = shl <2 x i32> [[B]], splat (i32 8) 621; ALL-NEXT: [[D:%.*]] = and <2 x i32> [[C]], splat (i32 10752) 622; ALL-NEXT: [[E:%.*]] = zext nneg <2 x i32> [[D]] to <2 x i64> 623; ALL-NEXT: ret <2 x i64> [[E]] 624; 625 %B = trunc <2 x i64> %A to <2 x i32> 626 %C = and <2 x i32> %B, <i32 42, i32 42> 627 %D = shl <2 x i32> %C, <i32 8, i32 8> 628 %E = zext <2 x i32> %D to <2 x i64> 629 ret <2 x i64> %E 630} 631 632define i64 @test47(i8 %A) { 633; ALL-LABEL: @test47( 634; ALL-NEXT: [[TMP1:%.*]] = or i8 [[A:%.*]], 42 635; ALL-NEXT: [[C:%.*]] = sext i8 [[TMP1]] to i64 636; ALL-NEXT: [[E:%.*]] = and i64 [[C]], 4294967295 637; ALL-NEXT: ret i64 [[E]] 638; 639 %B = sext i8 %A to i32 640 %C = or i32 %B, 42 641 %E = zext i32 %C to i64 642 ret i64 %E 643} 644 645define i64 @test48(i8 %A1, i8 %a2) { 646; ALL-LABEL: @test48( 647; ALL-NEXT: [[Z2:%.*]] = zext i8 [[A1:%.*]] to i32 648; ALL-NEXT: [[C:%.*]] = shl nuw nsw i32 [[Z2]], 8 649; ALL-NEXT: [[D:%.*]] = or disjoint i32 [[C]], [[Z2]] 650; ALL-NEXT: [[E:%.*]] = zext nneg i32 [[D]] to i64 651; ALL-NEXT: ret i64 [[E]] 652; 653 %Z1 = zext i8 %a2 to i32 654 %Z2 = zext i8 %A1 to i32 655 %C = shl i32 %Z2, 8 656 %D = or i32 %C, %Z2 657 %E = zext i32 %D to i64 658 ret i64 %E 659} 660 661define i64 @test49(i64 %A) { 662; ALL-LABEL: @test49( 663; ALL-NEXT: [[C:%.*]] = shl i64 [[A:%.*]], 32 664; ALL-NEXT: [[SEXT:%.*]] = ashr exact i64 [[C]], 32 665; ALL-NEXT: [[D:%.*]] = or i64 [[SEXT]], 1 666; ALL-NEXT: ret i64 [[D]] 667; 668 %B = trunc i64 %A to i32 669 %C = or i32 %B, 1 670 %D = sext i32 %C to i64 671 ret i64 %D 672} 673 674define i64 @test50(i64 %x) { 675; ALL-LABEL: @test50( 676; ALL-NEXT: [[TMP1:%.*]] = shl i64 [[X:%.*]], 30 677; ALL-NEXT: [[SEXT:%.*]] = add i64 [[TMP1]], -4294967296 678; ALL-NEXT: [[E:%.*]] = ashr i64 [[SEXT]], 32 679; ALL-NEXT: ret i64 [[E]] 680; 681 %a = lshr i64 %x, 2 682 %B = trunc i64 %a to i32 683 %D = add i32 %B, -1 684 %E = sext i32 %D to i64 685 ret i64 %E 686} 687 688define i64 @test51(i64 %A, i1 %cond) { 689; ALL-LABEL: @test51( 690; ALL-NEXT: [[C:%.*]] = and i64 [[A:%.*]], 4294967294 691; ALL-NEXT: [[NOT_COND:%.*]] = xor i1 [[COND:%.*]], true 692; ALL-NEXT: [[MASKSEL:%.*]] = zext i1 [[NOT_COND]] to i64 693; ALL-NEXT: [[E:%.*]] = or disjoint i64 [[C]], [[MASKSEL]] 694; ALL-NEXT: [[SEXT:%.*]] = shl nuw i64 [[E]], 32 695; ALL-NEXT: [[F:%.*]] = ashr exact i64 [[SEXT]], 32 696; ALL-NEXT: ret i64 [[F]] 697; 698 %B = trunc i64 %A to i32 699 %C = and i32 %B, -2 700 %D = or i32 %B, 1 701 %E = select i1 %cond, i32 %C, i32 %D 702 %F = sext i32 %E to i64 703 ret i64 %F 704} 705 706define i32 @test52(i64 %A) { 707; ALL-LABEL: @test52( 708; ALL-NEXT: [[B:%.*]] = trunc i64 [[A:%.*]] to i32 709; ALL-NEXT: [[C:%.*]] = and i32 [[B]], 7224 710; ALL-NEXT: [[D:%.*]] = or disjoint i32 [[C]], 32962 711; ALL-NEXT: ret i32 [[D]] 712; 713 %B = trunc i64 %A to i16 714 %C = or i16 %B, -32574 715 %D = and i16 %C, -25350 716 %E = zext i16 %D to i32 717 ret i32 %E 718} 719 720define i64 @test53(i32 %A) { 721; ALL-LABEL: @test53( 722; ALL-NEXT: [[TMP1:%.*]] = and i32 [[A:%.*]], 7224 723; ALL-NEXT: [[TMP2:%.*]] = or disjoint i32 [[TMP1]], 32962 724; ALL-NEXT: [[D:%.*]] = zext nneg i32 [[TMP2]] to i64 725; ALL-NEXT: ret i64 [[D]] 726; 727 %B = trunc i32 %A to i16 728 %C = or i16 %B, -32574 729 %D = and i16 %C, -25350 730 %E = zext i16 %D to i64 731 ret i64 %E 732} 733 734define i32 @test54(i64 %A) { 735; ALL-LABEL: @test54( 736; ALL-NEXT: [[B:%.*]] = trunc i64 [[A:%.*]] to i32 737; ALL-NEXT: [[C:%.*]] = and i32 [[B]], 7224 738; ALL-NEXT: [[D:%.*]] = or disjoint i32 [[C]], -32574 739; ALL-NEXT: ret i32 [[D]] 740; 741 %B = trunc i64 %A to i16 742 %C = or i16 %B, -32574 743 %D = and i16 %C, -25350 744 %E = sext i16 %D to i32 745 ret i32 %E 746} 747 748define i64 @test55(i32 %A) { 749; ALL-LABEL: @test55( 750; ALL-NEXT: [[TMP1:%.*]] = and i32 [[A:%.*]], 7224 751; ALL-NEXT: [[TMP2:%.*]] = or disjoint i32 [[TMP1]], -32574 752; ALL-NEXT: [[D:%.*]] = sext i32 [[TMP2]] to i64 753; ALL-NEXT: ret i64 [[D]] 754; 755 %B = trunc i32 %A to i16 756 %C = or i16 %B, -32574 757 %D = and i16 %C, -25350 758 %E = sext i16 %D to i64 759 ret i64 %E 760} 761 762define i64 @test56(i16 %A) { 763; ALL-LABEL: @test56( 764; ALL-NEXT: [[P353:%.*]] = sext i16 [[A:%.*]] to i64 765; ALL-NEXT: [[P354:%.*]] = lshr i64 [[P353]], 5 766; ALL-NEXT: [[P355:%.*]] = and i64 [[P354]], 134217727 767; ALL-NEXT: ret i64 [[P355]] 768; 769 %p353 = sext i16 %A to i32 770 %p354 = lshr i32 %p353, 5 771 %p355 = zext i32 %p354 to i64 772 ret i64 %p355 773} 774 775define <2 x i64> @test56vec(<2 x i16> %A) { 776; ALL-LABEL: @test56vec( 777; ALL-NEXT: [[P353:%.*]] = sext <2 x i16> [[A:%.*]] to <2 x i32> 778; ALL-NEXT: [[P354:%.*]] = lshr <2 x i32> [[P353]], splat (i32 5) 779; ALL-NEXT: [[P355:%.*]] = zext nneg <2 x i32> [[P354]] to <2 x i64> 780; ALL-NEXT: ret <2 x i64> [[P355]] 781; 782 %p353 = sext <2 x i16> %A to <2 x i32> 783 %p354 = lshr <2 x i32> %p353, <i32 5, i32 5> 784 %p355 = zext <2 x i32> %p354 to <2 x i64> 785 ret <2 x i64> %p355 786} 787 788define i64 @test57(i64 %A) { 789; ALL-LABEL: @test57( 790; ALL-NEXT: [[C:%.*]] = lshr i64 [[A:%.*]], 8 791; ALL-NEXT: [[E:%.*]] = and i64 [[C]], 16777215 792; ALL-NEXT: ret i64 [[E]] 793; 794 %B = trunc i64 %A to i32 795 %C = lshr i32 %B, 8 796 %E = zext i32 %C to i64 797 ret i64 %E 798} 799 800define <2 x i64> @test57vec(<2 x i64> %A) { 801; ALL-LABEL: @test57vec( 802; ALL-NEXT: [[B:%.*]] = trunc <2 x i64> [[A:%.*]] to <2 x i32> 803; ALL-NEXT: [[C:%.*]] = lshr <2 x i32> [[B]], splat (i32 8) 804; ALL-NEXT: [[E:%.*]] = zext nneg <2 x i32> [[C]] to <2 x i64> 805; ALL-NEXT: ret <2 x i64> [[E]] 806; 807 %B = trunc <2 x i64> %A to <2 x i32> 808 %C = lshr <2 x i32> %B, <i32 8, i32 8> 809 %E = zext <2 x i32> %C to <2 x i64> 810 ret <2 x i64> %E 811} 812 813define i64 @test58(i64 %A) { 814; ALL-LABEL: @test58( 815; ALL-NEXT: [[C:%.*]] = lshr i64 [[A:%.*]], 8 816; ALL-NEXT: [[D:%.*]] = and i64 [[C]], 16777087 817; ALL-NEXT: [[E:%.*]] = or disjoint i64 [[D]], 128 818; ALL-NEXT: ret i64 [[E]] 819; 820 %B = trunc i64 %A to i32 821 %C = lshr i32 %B, 8 822 %D = or i32 %C, 128 823 %E = zext i32 %D to i64 824 ret i64 %E 825 826} 827 828define i64 @test59(i8 %A, i8 %B) { 829; ALL-LABEL: @test59( 830; ALL-NEXT: [[C:%.*]] = zext i8 [[A:%.*]] to i64 831; ALL-NEXT: [[D:%.*]] = shl nuw nsw i64 [[C]], 4 832; ALL-NEXT: [[E:%.*]] = and i64 [[D]], 48 833; ALL-NEXT: [[TMP1:%.*]] = lshr i8 [[B:%.*]], 4 834; ALL-NEXT: [[G:%.*]] = zext nneg i8 [[TMP1]] to i64 835; ALL-NEXT: [[H:%.*]] = or disjoint i64 [[E]], [[G]] 836; ALL-NEXT: ret i64 [[H]] 837; 838 %C = zext i8 %A to i32 839 %D = shl i32 %C, 4 840 %E = and i32 %D, 48 841 %F = zext i8 %B to i32 842 %G = lshr i32 %F, 4 843 %H = or i32 %G, %E 844 %I = zext i32 %H to i64 845 ret i64 %I 846} 847 848define <3 x i32> @test60(<4 x i32> %call4) { 849; BE-LABEL: @test60( 850; BE-NEXT: [[P10:%.*]] = shufflevector <4 x i32> [[CALL4:%.*]], <4 x i32> poison, <3 x i32> <i32 1, i32 2, i32 3> 851; BE-NEXT: ret <3 x i32> [[P10]] 852; 853; LE-LABEL: @test60( 854; LE-NEXT: [[P10:%.*]] = shufflevector <4 x i32> [[CALL4:%.*]], <4 x i32> poison, <3 x i32> <i32 0, i32 1, i32 2> 855; LE-NEXT: ret <3 x i32> [[P10]] 856; 857 %p11 = bitcast <4 x i32> %call4 to i128 858 %p9 = trunc i128 %p11 to i96 859 %p10 = bitcast i96 %p9 to <3 x i32> 860 ret <3 x i32> %p10 861 862} 863 864define <4 x i32> @test61(<3 x i32> %call4) { 865; BE-LABEL: @test61( 866; BE-NEXT: [[P10:%.*]] = shufflevector <3 x i32> [[CALL4:%.*]], <3 x i32> <i32 0, i32 poison, i32 poison>, <4 x i32> <i32 3, i32 0, i32 1, i32 2> 867; BE-NEXT: ret <4 x i32> [[P10]] 868; 869; LE-LABEL: @test61( 870; LE-NEXT: [[P10:%.*]] = shufflevector <3 x i32> [[CALL4:%.*]], <3 x i32> <i32 0, i32 poison, i32 poison>, <4 x i32> <i32 0, i32 1, i32 2, i32 3> 871; LE-NEXT: ret <4 x i32> [[P10]] 872; 873 %p11 = bitcast <3 x i32> %call4 to i96 874 %p9 = zext i96 %p11 to i128 875 %p10 = bitcast i128 %p9 to <4 x i32> 876 ret <4 x i32> %p10 877} 878 879define <4 x i32> @test62(<3 x float> %call4) { 880; BE-LABEL: @test62( 881; BE-NEXT: [[TMP1:%.*]] = bitcast <3 x float> [[CALL4:%.*]] to <3 x i32> 882; BE-NEXT: [[P10:%.*]] = shufflevector <3 x i32> [[TMP1]], <3 x i32> <i32 0, i32 poison, i32 poison>, <4 x i32> <i32 3, i32 0, i32 1, i32 2> 883; BE-NEXT: ret <4 x i32> [[P10]] 884; 885; LE-LABEL: @test62( 886; LE-NEXT: [[TMP1:%.*]] = bitcast <3 x float> [[CALL4:%.*]] to <3 x i32> 887; LE-NEXT: [[P10:%.*]] = shufflevector <3 x i32> [[TMP1]], <3 x i32> <i32 0, i32 poison, i32 poison>, <4 x i32> <i32 0, i32 1, i32 2, i32 3> 888; LE-NEXT: ret <4 x i32> [[P10]] 889; 890 %p11 = bitcast <3 x float> %call4 to i96 891 %p9 = zext i96 %p11 to i128 892 %p10 = bitcast i128 %p9 to <4 x i32> 893 ret <4 x i32> %p10 894} 895 896; PR7311 - Don't create invalid IR on scalar->vector cast. 897define <2 x float> @test63(i64 %t8) { 898; ALL-LABEL: @test63( 899; ALL-NEXT: [[A:%.*]] = bitcast i64 [[T8:%.*]] to <2 x i32> 900; ALL-NEXT: [[VCVT_I:%.*]] = uitofp <2 x i32> [[A]] to <2 x float> 901; ALL-NEXT: ret <2 x float> [[VCVT_I]] 902; 903 %a = bitcast i64 %t8 to <2 x i32> 904 %vcvt.i = uitofp <2 x i32> %a to <2 x float> 905 ret <2 x float> %vcvt.i 906} 907 908define <4 x float> @test64(<4 x float> %c) { 909; ALL-LABEL: @test64( 910; ALL-NEXT: ret <4 x float> [[C:%.*]] 911; 912 %t0 = bitcast <4 x float> %c to <4 x i32> 913 %t1 = bitcast <4 x i32> %t0 to <4 x float> 914 ret <4 x float> %t1 915} 916 917define <4 x float> @test65(<4 x float> %c) { 918; ALL-LABEL: @test65( 919; ALL-NEXT: ret <4 x float> [[C:%.*]] 920; 921 %t0 = bitcast <4 x float> %c to <2 x double> 922 %t1 = bitcast <2 x double> %t0 to <4 x float> 923 ret <4 x float> %t1 924} 925 926define <2 x float> @test66(<2 x float> %c) { 927; ALL-LABEL: @test66( 928; ALL-NEXT: ret <2 x float> [[C:%.*]] 929; 930 %t0 = bitcast <2 x float> %c to double 931 %t1 = bitcast double %t0 to <2 x float> 932 ret <2 x float> %t1 933} 934 935define float @test2c() { 936; ALL-LABEL: @test2c( 937; ALL-NEXT: ret float -1.000000e+00 938; 939 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) 940} 941 942; PR12514 943define i1 @test67(i1 %a, i32 %b) { 944; ALL-LABEL: @test67( 945; ALL-NEXT: ret i1 false 946; 947 %t2 = zext i1 %a to i32 948 %conv6 = xor i32 %t2, 1 949 %and = and i32 %b, %conv6 950 %sext = shl nuw nsw i32 %and, 24 951 %neg.i = xor i32 %sext, -16777216 952 %conv.i.i = ashr exact i32 %neg.i, 24 953 %trunc = trunc i32 %conv.i.i to i8 954 %tobool.i = icmp eq i8 %trunc, 0 955 ret i1 %tobool.i 956} 957 958%s = type { i32, i32, i16 } 959 960define %s @test68(ptr %p, i64 %i) { 961; ALL-LABEL: @test68( 962; ALL-NEXT: [[O:%.*]] = mul i64 [[I:%.*]], 12 963; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i8, ptr [[P:%.*]], i64 [[O]] 964; ALL-NEXT: [[L:%.*]] = load [[S:%.*]], ptr [[PP]], align 4 965; ALL-NEXT: ret [[S]] [[L]] 966; 967 %o = mul i64 %i, 12 968 %pp = getelementptr inbounds i8, ptr %p, i64 %o 969 %l = load %s, ptr %pp 970 ret %s %l 971} 972 973; addrspacecasts should be eliminated. 974define %s @test68_addrspacecast(ptr %p, i64 %i) { 975; ALL-LABEL: @test68_addrspacecast( 976; ALL-NEXT: [[O:%.*]] = mul i64 [[I:%.*]], 12 977; ALL-NEXT: [[Q:%.*]] = addrspacecast ptr [[P:%.*]] to ptr addrspace(2) 978; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i8, ptr addrspace(2) [[Q]], i64 [[O]] 979; ALL-NEXT: [[R:%.*]] = addrspacecast ptr addrspace(2) [[PP]] to ptr 980; ALL-NEXT: [[L:%.*]] = load [[S:%.*]], ptr [[R]], align 4 981; ALL-NEXT: ret [[S]] [[L]] 982; 983 %o = mul i64 %i, 12 984 %q = addrspacecast ptr %p to ptr addrspace(2) 985 %pp = getelementptr inbounds i8, ptr addrspace(2) %q, i64 %o 986 %r = addrspacecast ptr addrspace(2) %pp to ptr 987 %l = load %s, ptr %r 988 ret %s %l 989} 990 991define %s @test68_addrspacecast_2(ptr %p, i64 %i) { 992; ALL-LABEL: @test68_addrspacecast_2( 993; ALL-NEXT: [[O:%.*]] = mul i64 [[I:%.*]], 12 994; ALL-NEXT: [[Q:%.*]] = addrspacecast ptr [[P:%.*]] to ptr addrspace(2) 995; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i8, ptr addrspace(2) [[Q]], i64 [[O]] 996; ALL-NEXT: [[R:%.*]] = addrspacecast ptr addrspace(2) [[PP]] to ptr addrspace(1) 997; ALL-NEXT: [[L:%.*]] = load [[S:%.*]], ptr addrspace(1) [[R]], align 4 998; ALL-NEXT: ret [[S]] [[L]] 999; 1000 %o = mul i64 %i, 12 1001 %q = addrspacecast ptr %p to ptr addrspace(2) 1002 %pp = getelementptr inbounds i8, ptr addrspace(2) %q, i64 %o 1003 %r = addrspacecast ptr addrspace(2) %pp to ptr addrspace(1) 1004 %l = load %s, ptr addrspace(1) %r 1005 ret %s %l 1006} 1007 1008define %s @test68_as1(ptr addrspace(1) %p, i32 %i) { 1009; ALL-LABEL: @test68_as1( 1010; ALL-NEXT: [[O:%.*]] = mul i32 [[I:%.*]], 12 1011; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i8, ptr addrspace(1) [[P:%.*]], i32 [[O]] 1012; ALL-NEXT: [[L:%.*]] = load [[S:%.*]], ptr addrspace(1) [[PP]], align 4 1013; ALL-NEXT: ret [[S]] [[L]] 1014; 1015 %o = mul i32 %i, 12 1016 %pp = getelementptr inbounds i8, ptr addrspace(1) %p, i32 %o 1017 %l = load %s, ptr addrspace(1) %pp 1018 ret %s %l 1019} 1020 1021define double @test69(ptr %p, i64 %i) { 1022; ALL-LABEL: @test69( 1023; ALL-NEXT: [[O:%.*]] = shl nsw i64 [[I:%.*]], 3 1024; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i8, ptr [[P:%.*]], i64 [[O]] 1025; ALL-NEXT: [[L:%.*]] = load double, ptr [[PP]], align 8 1026; ALL-NEXT: ret double [[L]] 1027; 1028 %o = shl nsw i64 %i, 3 1029 %pp = getelementptr inbounds i8, ptr %p, i64 %o 1030 %l = load double, ptr %pp 1031 ret double %l 1032} 1033 1034define %s @test70(ptr %p, i64 %i) { 1035; ALL-LABEL: @test70( 1036; ALL-NEXT: [[O:%.*]] = mul nsw i64 [[I:%.*]], 36 1037; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i8, ptr [[P:%.*]], i64 [[O]] 1038; ALL-NEXT: [[L:%.*]] = load [[S:%.*]], ptr [[PP]], align 4 1039; ALL-NEXT: ret [[S]] [[L]] 1040; 1041 %o = mul nsw i64 %i, 36 1042 %pp = getelementptr inbounds i8, ptr %p, i64 %o 1043 %l = load %s, ptr %pp 1044 ret %s %l 1045} 1046 1047define double @test71(ptr %p, i64 %i) { 1048; ALL-LABEL: @test71( 1049; ALL-NEXT: [[O:%.*]] = shl i64 [[I:%.*]], 5 1050; ALL-NEXT: [[PP:%.*]] = getelementptr i8, ptr [[P:%.*]], i64 [[O]] 1051; ALL-NEXT: [[L:%.*]] = load double, ptr [[PP]], align 8 1052; ALL-NEXT: ret double [[L]] 1053; 1054 %o = shl i64 %i, 5 1055 %pp = getelementptr i8, ptr %p, i64 %o 1056 %l = load double, ptr %pp 1057 ret double %l 1058} 1059 1060define double @test72(ptr %p, i32 %i) { 1061; ALL-LABEL: @test72( 1062; ALL-NEXT: [[SO:%.*]] = shl nsw i32 [[I:%.*]], 3 1063; ALL-NEXT: [[O:%.*]] = sext i32 [[SO]] to i64 1064; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i8, ptr [[P:%.*]], i64 [[O]] 1065; ALL-NEXT: [[L:%.*]] = load double, ptr [[PP]], align 8 1066; ALL-NEXT: ret double [[L]] 1067; 1068 %so = shl nsw i32 %i, 3 1069 %o = sext i32 %so to i64 1070 %pp = getelementptr inbounds i8, ptr %p, i64 %o 1071 %l = load double, ptr %pp 1072 ret double %l 1073} 1074 1075define double @test73(ptr %p, i128 %i) { 1076; ALL-LABEL: @test73( 1077; ALL-NEXT: [[I_TR:%.*]] = trunc i128 [[I:%.*]] to i64 1078; ALL-NEXT: [[O:%.*]] = shl i64 [[I_TR]], 3 1079; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i8, ptr [[P:%.*]], i64 [[O]] 1080; ALL-NEXT: [[L:%.*]] = load double, ptr [[PP]], align 8 1081; ALL-NEXT: ret double [[L]] 1082; 1083 %lo = shl nsw i128 %i, 3 1084 %o = trunc i128 %lo to i64 1085 %pp = getelementptr inbounds i8, ptr %p, i64 %o 1086 %l = load double, ptr %pp 1087 ret double %l 1088} 1089 1090define double @test74(ptr %p, i64 %i) { 1091; ALL-LABEL: @test74( 1092; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i64, ptr [[P:%.*]], i64 [[I:%.*]] 1093; ALL-NEXT: [[L:%.*]] = load double, ptr [[PP]], align 8 1094; ALL-NEXT: ret double [[L]] 1095; 1096 %pp = getelementptr inbounds i64, ptr %p, i64 %i 1097 %l = load double, ptr %pp 1098 ret double %l 1099} 1100 1101define ptr @test75(ptr %p, i32 %x) { 1102; ALL-LABEL: @test75( 1103; ALL-NEXT: [[Y:%.*]] = shl i32 [[X:%.*]], 3 1104; ALL-NEXT: [[Z:%.*]] = sext i32 [[Y]] to i64 1105; ALL-NEXT: [[R:%.*]] = getelementptr i8, ptr [[P:%.*]], i64 [[Z]] 1106; ALL-NEXT: ret ptr [[R]] 1107; 1108 %y = shl i32 %x, 3 1109 %z = sext i32 %y to i64 1110 %r = getelementptr i8, ptr %p, i64 %z 1111 ret ptr %r 1112} 1113 1114define %s @test76(ptr %p, i64 %i, i64 %j) { 1115; ALL-LABEL: @test76( 1116; ALL-NEXT: [[O:%.*]] = mul i64 [[I:%.*]], 12 1117; ALL-NEXT: [[O2:%.*]] = mul nsw i64 [[O]], [[J:%.*]] 1118; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i8, ptr [[P:%.*]], i64 [[O2]] 1119; ALL-NEXT: [[L:%.*]] = load [[S:%.*]], ptr [[PP]], align 4 1120; ALL-NEXT: ret [[S]] [[L]] 1121; 1122 %o = mul i64 %i, 12 1123 %o2 = mul nsw i64 %o, %j 1124 %pp = getelementptr inbounds i8, ptr %p, i64 %o2 1125 %l = load %s, ptr %pp 1126 ret %s %l 1127} 1128 1129define %s @test77(ptr %p, i64 %i, i64 %j) { 1130; ALL-LABEL: @test77( 1131; ALL-NEXT: [[O:%.*]] = mul nsw i64 [[I:%.*]], 36 1132; ALL-NEXT: [[O2:%.*]] = mul nsw i64 [[O]], [[J:%.*]] 1133; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i8, ptr [[P:%.*]], i64 [[O2]] 1134; ALL-NEXT: [[L:%.*]] = load [[S:%.*]], ptr [[PP]], align 4 1135; ALL-NEXT: ret [[S]] [[L]] 1136; 1137 %o = mul nsw i64 %i, 36 1138 %o2 = mul nsw i64 %o, %j 1139 %pp = getelementptr inbounds i8, ptr %p, i64 %o2 1140 %l = load %s, ptr %pp 1141 ret %s %l 1142} 1143 1144define %s @test78(ptr %p, i64 %i, i64 %j, i32 %k, i32 %l, i128 %m, i128 %n) { 1145; ALL-LABEL: @test78( 1146; ALL-NEXT: [[A:%.*]] = mul nsw i32 [[K:%.*]], 36 1147; ALL-NEXT: [[B:%.*]] = mul nsw i32 [[A]], [[L:%.*]] 1148; ALL-NEXT: [[C:%.*]] = sext i32 [[B]] to i128 1149; ALL-NEXT: [[D:%.*]] = mul nsw i128 [[M:%.*]], [[C]] 1150; ALL-NEXT: [[E:%.*]] = mul i128 [[D]], [[N:%.*]] 1151; ALL-NEXT: [[F:%.*]] = trunc i128 [[E]] to i64 1152; ALL-NEXT: [[G:%.*]] = mul nsw i64 [[I:%.*]], [[F]] 1153; ALL-NEXT: [[H:%.*]] = mul nsw i64 [[G]], [[J:%.*]] 1154; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i8, ptr [[P:%.*]], i64 [[H]] 1155; ALL-NEXT: [[LOAD:%.*]] = load [[S:%.*]], ptr [[PP]], align 4 1156; ALL-NEXT: ret [[S]] [[LOAD]] 1157; 1158 %a = mul nsw i32 %k, 36 1159 %b = mul nsw i32 %a, %l 1160 %c = sext i32 %b to i128 1161 %d = mul nsw i128 %c, %m 1162 %e = mul i128 %d, %n 1163 %f = trunc i128 %e to i64 1164 %g = mul nsw i64 %f, %i 1165 %h = mul nsw i64 %g, %j 1166 %pp = getelementptr inbounds i8, ptr %p, i64 %h 1167 %load = load %s, ptr %pp 1168 ret %s %load 1169} 1170 1171define %s @test79(ptr %p, i64 %i, i32 %j) { 1172; ALL-LABEL: @test79( 1173; ALL-NEXT: [[TMP1:%.*]] = trunc i64 [[I:%.*]] to i32 1174; ALL-NEXT: [[B:%.*]] = mul i32 [[TMP1]], 36 1175; ALL-NEXT: [[C:%.*]] = mul i32 [[B]], [[J:%.*]] 1176; ALL-NEXT: [[TMP2:%.*]] = sext i32 [[C]] to i64 1177; ALL-NEXT: [[PP:%.*]] = getelementptr inbounds i8, ptr [[P:%.*]], i64 [[TMP2]] 1178; ALL-NEXT: [[L:%.*]] = load [[S:%.*]], ptr [[PP]], align 4 1179; ALL-NEXT: ret [[S]] [[L]] 1180; 1181 %a = mul nsw i64 %i, 36 1182 %b = trunc i64 %a to i32 1183 %c = mul i32 %b, %j 1184 %pp = getelementptr inbounds i8, ptr %p, i32 %c 1185 %l = load %s, ptr %pp 1186 ret %s %l 1187} 1188 1189define double @test80(ptr %p, i32 %i) { 1190; ALL-LABEL: @test80( 1191; ALL-NEXT: [[T:%.*]] = shl nsw i32 [[I:%.*]], 3 1192; ALL-NEXT: [[TMP1:%.*]] = sext i32 [[T]] to i64 1193; ALL-NEXT: [[PP:%.*]] = getelementptr i8, ptr [[P:%.*]], i64 [[TMP1]] 1194; ALL-NEXT: [[L:%.*]] = load double, ptr [[PP]], align 8 1195; ALL-NEXT: ret double [[L]] 1196; 1197 %t = shl nsw i32 %i, 3 1198 %pp = getelementptr i8, ptr %p, i32 %t 1199 %l = load double, ptr %pp 1200 ret double %l 1201} 1202 1203define double @test80_addrspacecast(ptr addrspace(1) %p, i32 %i) { 1204; ALL-LABEL: @test80_addrspacecast( 1205; ALL-NEXT: [[T:%.*]] = shl nsw i32 [[I:%.*]], 3 1206; ALL-NEXT: [[Q:%.*]] = addrspacecast ptr addrspace(1) [[P:%.*]] to ptr addrspace(2) 1207; ALL-NEXT: [[TMP1:%.*]] = sext i32 [[T]] to i64 1208; ALL-NEXT: [[PP:%.*]] = getelementptr i8, ptr addrspace(2) [[Q]], i64 [[TMP1]] 1209; ALL-NEXT: [[R:%.*]] = addrspacecast ptr addrspace(2) [[PP]] to ptr addrspace(1) 1210; ALL-NEXT: [[L:%.*]] = load double, ptr addrspace(1) [[R]], align 8 1211; ALL-NEXT: ret double [[L]] 1212; 1213 %t = shl nsw i32 %i, 3 1214 %q = addrspacecast ptr addrspace(1) %p to ptr addrspace(2) 1215 %pp = getelementptr i8, ptr addrspace(2) %q, i32 %t 1216 %r = addrspacecast ptr addrspace(2) %pp to ptr addrspace(1) 1217 %l = load double, ptr addrspace(1) %r 1218 ret double %l 1219} 1220 1221define double @test80_addrspacecast_2(ptr addrspace(1) %p, i32 %i) { 1222; ALL-LABEL: @test80_addrspacecast_2( 1223; ALL-NEXT: [[T:%.*]] = shl nsw i32 [[I:%.*]], 3 1224; ALL-NEXT: [[Q:%.*]] = addrspacecast ptr addrspace(1) [[P:%.*]] to ptr addrspace(2) 1225; ALL-NEXT: [[TMP1:%.*]] = sext i32 [[T]] to i64 1226; ALL-NEXT: [[PP:%.*]] = getelementptr i8, ptr addrspace(2) [[Q]], i64 [[TMP1]] 1227; ALL-NEXT: [[R:%.*]] = addrspacecast ptr addrspace(2) [[PP]] to ptr addrspace(3) 1228; ALL-NEXT: [[L:%.*]] = load double, ptr addrspace(3) [[R]], align 8 1229; ALL-NEXT: ret double [[L]] 1230; 1231 %t = shl nsw i32 %i, 3 1232 %q = addrspacecast ptr addrspace(1) %p to ptr addrspace(2) 1233 %pp = getelementptr i8, ptr addrspace(2) %q, i32 %t 1234 %r = addrspacecast ptr addrspace(2) %pp to ptr addrspace(3) 1235 %l = load double, ptr addrspace(3) %r 1236 ret double %l 1237} 1238 1239define double @test80_as1(ptr addrspace(1) %p, i16 %i) { 1240; ALL-LABEL: @test80_as1( 1241; ALL-NEXT: [[T:%.*]] = shl nsw i16 [[I:%.*]], 3 1242; ALL-NEXT: [[TMP1:%.*]] = sext i16 [[T]] to i32 1243; ALL-NEXT: [[PP:%.*]] = getelementptr i8, ptr addrspace(1) [[P:%.*]], i32 [[TMP1]] 1244; ALL-NEXT: [[L:%.*]] = load double, ptr addrspace(1) [[PP]], align 8 1245; ALL-NEXT: ret double [[L]] 1246; 1247 %t = shl nsw i16 %i, 3 1248 %pp = getelementptr i8, ptr addrspace(1) %p, i16 %t 1249 %l = load double, ptr addrspace(1) %pp 1250 ret double %l 1251} 1252 1253define double @test81(ptr %p, float %f) { 1254; ALL-LABEL: @test81( 1255; ALL-NEXT: [[I:%.*]] = fptosi float [[F:%.*]] to i64 1256; ALL-NEXT: [[PP:%.*]] = getelementptr i8, ptr [[P:%.*]], i64 [[I]] 1257; ALL-NEXT: [[L:%.*]] = load double, ptr [[PP]], align 8 1258; ALL-NEXT: ret double [[L]] 1259; 1260 %i = fptosi float %f to i64 1261 %pp = getelementptr i8, ptr %p, i64 %i 1262 %l = load double, ptr %pp 1263 ret double %l 1264} 1265 1266define i64 @test82(i64 %A) { 1267; ALL-LABEL: @test82( 1268; ALL-NEXT: [[TMP1:%.*]] = shl i64 [[A:%.*]], 1 1269; ALL-NEXT: [[D:%.*]] = and i64 [[TMP1]], 4294966784 1270; ALL-NEXT: ret i64 [[D]] 1271; 1272 %B = trunc i64 %A to i32 1273 %C = lshr i32 %B, 8 1274 %D = shl i32 %C, 9 1275 %E = zext i32 %D to i64 1276 ret i64 %E 1277} 1278 1279; PR15959 1280define i64 @test83(i16 %a, i64 %k) { 1281; ALL-LABEL: @test83( 1282; ALL-NEXT: [[CONV:%.*]] = sext i16 [[A:%.*]] to i32 1283; ALL-NEXT: [[TMP1:%.*]] = trunc i64 [[K:%.*]] to i32 1284; ALL-NEXT: [[SH_PROM:%.*]] = add i32 [[TMP1]], -1 1285; ALL-NEXT: [[SHL:%.*]] = shl i32 [[CONV]], [[SH_PROM]] 1286; ALL-NEXT: [[SH_PROM1:%.*]] = zext i32 [[SHL]] to i64 1287; ALL-NEXT: ret i64 [[SH_PROM1]] 1288; 1289 %conv = sext i16 %a to i32 1290 %sub = add nsw i64 %k, -1 1291 %sh_prom = trunc i64 %sub to i32 1292 %shl = shl i32 %conv, %sh_prom 1293 %sh_prom1 = zext i32 %shl to i64 1294 ret i64 %sh_prom1 1295} 1296 1297define i8 @test84(i32 %a) { 1298; ALL-LABEL: @test84( 1299; ALL-NEXT: [[ADD:%.*]] = add i32 [[A:%.*]], 2130706432 1300; ALL-NEXT: [[SHR:%.*]] = lshr i32 [[ADD]], 23 1301; ALL-NEXT: [[TRUNC:%.*]] = trunc i32 [[SHR]] to i8 1302; ALL-NEXT: ret i8 [[TRUNC]] 1303; 1304 %add = add nsw i32 %a, -16777216 1305 %shr = lshr exact i32 %add, 23 1306 %trunc = trunc i32 %shr to i8 1307 ret i8 %trunc 1308} 1309 1310define i8 @test85(i32 %a) { 1311; ALL-LABEL: @test85( 1312; ALL-NEXT: [[ADD:%.*]] = add i32 [[A:%.*]], 2130706432 1313; ALL-NEXT: [[SHR:%.*]] = lshr i32 [[ADD]], 23 1314; ALL-NEXT: [[TRUNC:%.*]] = trunc i32 [[SHR]] to i8 1315; ALL-NEXT: ret i8 [[TRUNC]] 1316; 1317 %add = add nuw i32 %a, -16777216 1318 %shr = lshr exact i32 %add, 23 1319 %trunc = trunc i32 %shr to i8 1320 ret i8 %trunc 1321} 1322 1323define i16 @test86(i16 %v) { 1324; ALL-LABEL: @test86( 1325; ALL-NEXT: [[TMP1:%.*]] = ashr i16 [[V:%.*]], 4 1326; ALL-NEXT: ret i16 [[TMP1]] 1327; 1328 %a = sext i16 %v to i32 1329 %s = ashr i32 %a, 4 1330 %t = trunc i32 %s to i16 1331 ret i16 %t 1332} 1333 1334define i16 @test87(i16 %v) { 1335; ALL-LABEL: @test87( 1336; ALL-NEXT: [[TMP1:%.*]] = ashr i16 [[V:%.*]], 12 1337; ALL-NEXT: ret i16 [[TMP1]] 1338; 1339 %c = sext i16 %v to i32 1340 %m = mul nsw i32 %c, 16 1341 %a = ashr i32 %m, 16 1342 %t = trunc i32 %a to i16 1343 ret i16 %t 1344} 1345 1346define i16 @test88(i16 %v) { 1347; ALL-LABEL: @test88( 1348; ALL-NEXT: [[TMP1:%.*]] = ashr i16 [[V:%.*]], 15 1349; ALL-NEXT: ret i16 [[TMP1]] 1350; 1351 %a = sext i16 %v to i32 1352 %s = ashr i32 %a, 18 1353 %t = trunc i32 %s to i16 1354 ret i16 %t 1355} 1356 1357define i32 @PR21388(ptr %v) { 1358; ALL-LABEL: @PR21388( 1359; ALL-NEXT: [[ICMP:%.*]] = icmp slt ptr [[V:%.*]], null 1360; ALL-NEXT: [[SEXT:%.*]] = sext i1 [[ICMP]] to i32 1361; ALL-NEXT: ret i32 [[SEXT]] 1362; 1363 %icmp = icmp slt ptr %v, null 1364 %sext = sext i1 %icmp to i32 1365 ret i32 %sext 1366} 1367 1368define float @sitofp_zext(i16 %a) { 1369; ALL-LABEL: @sitofp_zext( 1370; ALL-NEXT: [[SITOFP:%.*]] = uitofp i16 [[A:%.*]] to float 1371; ALL-NEXT: ret float [[SITOFP]] 1372; 1373 %zext = zext i16 %a to i32 1374 %sitofp = sitofp i32 %zext to float 1375 ret float %sitofp 1376} 1377 1378define i1 @PR23309(i32 %A, i32 %B) { 1379; ALL-LABEL: @PR23309( 1380; ALL-NEXT: [[SUB:%.*]] = sub i32 [[A:%.*]], [[B:%.*]] 1381; ALL-NEXT: [[TRUNC:%.*]] = trunc i32 [[SUB]] to i1 1382; ALL-NEXT: ret i1 [[TRUNC]] 1383; 1384 %add = add i32 %A, -4 1385 %sub = sub nsw i32 %add, %B 1386 %trunc = trunc i32 %sub to i1 1387 ret i1 %trunc 1388} 1389 1390define i1 @PR23309v2(i32 %A, i32 %B) { 1391; ALL-LABEL: @PR23309v2( 1392; ALL-NEXT: [[SUB:%.*]] = add i32 [[A:%.*]], [[B:%.*]] 1393; ALL-NEXT: [[TRUNC:%.*]] = trunc i32 [[SUB]] to i1 1394; ALL-NEXT: ret i1 [[TRUNC]] 1395; 1396 %add = add i32 %A, -4 1397 %sub = add nuw i32 %add, %B 1398 %trunc = trunc i32 %sub to i1 1399 ret i1 %trunc 1400} 1401 1402define i16 @PR24763(i8 %V) { 1403; ALL-LABEL: @PR24763( 1404; ALL-NEXT: [[TMP1:%.*]] = ashr i8 [[V:%.*]], 1 1405; ALL-NEXT: [[T:%.*]] = sext i8 [[TMP1]] to i16 1406; ALL-NEXT: ret i16 [[T]] 1407; 1408 %conv = sext i8 %V to i32 1409 %l = lshr i32 %conv, 1 1410 %t = trunc i32 %l to i16 1411 ret i16 %t 1412} 1413 1414define i64 @PR28745() { 1415; BE-LABEL: @PR28745( 1416; BE-NEXT: ret i64 1 1417; 1418; LE-LABEL: @PR28745( 1419; LE-NEXT: ret i64 0 1420; 1421 %c = icmp eq i16 extractelement (<2 x i16> bitcast (<1 x i32> <i32 1> to <2 x i16>), i32 0), 0 1422 %s = select i1 %c, { i32 } { i32 1 }, { i32 } zeroinitializer 1423 %e = extractvalue { i32 } %s, 0 1424 %b = zext i32 %e to i64 1425 ret i64 %b 1426} 1427 1428define i32 @test89() { 1429; BE-LABEL: @test89( 1430; BE-NEXT: ret i32 393216 1431; 1432; LE-LABEL: @test89( 1433; LE-NEXT: ret i32 6 1434; 1435 ret i32 bitcast (<2 x i16> <i16 6, i16 poison> to i32) 1436} 1437 1438define <2 x i32> @test90() { 1439; BE-LABEL: @test90( 1440; BE-NEXT: ret <2 x i32> <i32 0, i32 15360> 1441; 1442; LE-LABEL: @test90( 1443; LE-NEXT: ret <2 x i32> <i32 0, i32 1006632960> 1444; 1445 %t6 = bitcast <4 x half> <half poison, half poison, half poison, half 0xH3C00> to <2 x i32> 1446 ret <2 x i32> %t6 1447} 1448 1449; Do not optimize to ashr i64 (shift by 48 > 96 - 64) 1450define i64 @test91(i64 %A) { 1451; ALL-LABEL: @test91( 1452; ALL-NEXT: [[B:%.*]] = sext i64 [[A:%.*]] to i96 1453; ALL-NEXT: [[C:%.*]] = lshr i96 [[B]], 48 1454; ALL-NEXT: [[D:%.*]] = trunc nuw nsw i96 [[C]] to i64 1455; ALL-NEXT: ret i64 [[D]] 1456; 1457 %B = sext i64 %A to i96 1458 %C = lshr i96 %B, 48 1459 %D = trunc i96 %C to i64 1460 ret i64 %D 1461} 1462 1463; Do optimize to ashr i64 (shift by 32 <= 96 - 64) 1464define i64 @test92(i64 %A) { 1465; ALL-LABEL: @test92( 1466; ALL-NEXT: [[TMP1:%.*]] = ashr i64 [[A:%.*]], 32 1467; ALL-NEXT: ret i64 [[TMP1]] 1468; 1469 %B = sext i64 %A to i96 1470 %C = lshr i96 %B, 32 1471 %D = trunc i96 %C to i64 1472 ret i64 %D 1473} 1474 1475; When optimizing to ashr i32, don't shift by more than 31. 1476define i32 @test93(i32 %A) { 1477; ALL-LABEL: @test93( 1478; ALL-NEXT: [[TMP1:%.*]] = ashr i32 [[A:%.*]], 31 1479; ALL-NEXT: ret i32 [[TMP1]] 1480; 1481 %B = sext i32 %A to i96 1482 %C = lshr i96 %B, 64 1483 %D = trunc i96 %C to i32 1484 ret i32 %D 1485} 1486 1487define i8 @trunc_lshr_sext(i8 %A) { 1488; ALL-LABEL: @trunc_lshr_sext( 1489; ALL-NEXT: [[D:%.*]] = ashr i8 [[A:%.*]], 6 1490; ALL-NEXT: ret i8 [[D]] 1491; 1492 %B = sext i8 %A to i32 1493 %C = lshr i32 %B, 6 1494 %D = trunc i32 %C to i8 1495 ret i8 %D 1496} 1497 1498define i8 @trunc_lshr_sext_exact(i8 %A) { 1499; ALL-LABEL: @trunc_lshr_sext_exact( 1500; ALL-NEXT: [[D:%.*]] = ashr exact i8 [[A:%.*]], 6 1501; ALL-NEXT: ret i8 [[D]] 1502; 1503 %B = sext i8 %A to i32 1504 %C = lshr exact i32 %B, 6 1505 %D = trunc i32 %C to i8 1506 ret i8 %D 1507} 1508 1509define <2 x i8> @trunc_lshr_sext_uniform(<2 x i8> %A) { 1510; ALL-LABEL: @trunc_lshr_sext_uniform( 1511; ALL-NEXT: [[D:%.*]] = ashr <2 x i8> [[A:%.*]], splat (i8 6) 1512; ALL-NEXT: ret <2 x i8> [[D]] 1513; 1514 %B = sext <2 x i8> %A to <2 x i32> 1515 %C = lshr <2 x i32> %B, <i32 6, i32 6> 1516 %D = trunc <2 x i32> %C to <2 x i8> 1517 ret <2 x i8> %D 1518} 1519 1520define <2 x i8> @trunc_lshr_sext_uniform_poison(<2 x i8> %A) { 1521; ALL-LABEL: @trunc_lshr_sext_uniform_poison( 1522; ALL-NEXT: [[D:%.*]] = ashr <2 x i8> [[A:%.*]], <i8 6, i8 poison> 1523; ALL-NEXT: ret <2 x i8> [[D]] 1524; 1525 %B = sext <2 x i8> %A to <2 x i32> 1526 %C = lshr <2 x i32> %B, <i32 6, i32 poison> 1527 %D = trunc <2 x i32> %C to <2 x i8> 1528 ret <2 x i8> %D 1529} 1530 1531define <2 x i8> @trunc_lshr_sext_nonuniform(<2 x i8> %A) { 1532; ALL-LABEL: @trunc_lshr_sext_nonuniform( 1533; ALL-NEXT: [[D:%.*]] = ashr <2 x i8> [[A:%.*]], <i8 6, i8 2> 1534; ALL-NEXT: ret <2 x i8> [[D]] 1535; 1536 %B = sext <2 x i8> %A to <2 x i32> 1537 %C = lshr <2 x i32> %B, <i32 6, i32 2> 1538 %D = trunc <2 x i32> %C to <2 x i8> 1539 ret <2 x i8> %D 1540} 1541 1542define <3 x i8> @trunc_lshr_sext_nonuniform_poison(<3 x i8> %A) { 1543; ALL-LABEL: @trunc_lshr_sext_nonuniform_poison( 1544; ALL-NEXT: [[D:%.*]] = ashr <3 x i8> [[A:%.*]], <i8 6, i8 2, i8 poison> 1545; ALL-NEXT: ret <3 x i8> [[D]] 1546; 1547 %B = sext <3 x i8> %A to <3 x i32> 1548 %C = lshr <3 x i32> %B, <i32 6, i32 2, i32 poison> 1549 %D = trunc <3 x i32> %C to <3 x i8> 1550 ret <3 x i8> %D 1551} 1552 1553define <2 x i8> @trunc_lshr_sext_uses1(<2 x i8> %A) { 1554; ALL-LABEL: @trunc_lshr_sext_uses1( 1555; ALL-NEXT: [[B:%.*]] = sext <2 x i8> [[A:%.*]] to <2 x i32> 1556; ALL-NEXT: call void @use_v2i32(<2 x i32> [[B]]) 1557; ALL-NEXT: [[D:%.*]] = ashr <2 x i8> [[A]], splat (i8 6) 1558; ALL-NEXT: ret <2 x i8> [[D]] 1559; 1560 %B = sext <2 x i8> %A to <2 x i32> 1561 call void @use_v2i32(<2 x i32> %B) 1562 %C = lshr <2 x i32> %B, <i32 6, i32 6> 1563 %D = trunc <2 x i32> %C to <2 x i8> 1564 ret <2 x i8> %D 1565} 1566 1567define i8 @trunc_lshr_sext_uses2(i8 %A) { 1568; ALL-LABEL: @trunc_lshr_sext_uses2( 1569; ALL-NEXT: [[B:%.*]] = sext i8 [[A:%.*]] to i32 1570; ALL-NEXT: [[C:%.*]] = lshr i32 [[B]], 6 1571; ALL-NEXT: call void @use_i32(i32 [[C]]) 1572; ALL-NEXT: [[D:%.*]] = ashr i8 [[A]], 6 1573; ALL-NEXT: ret i8 [[D]] 1574; 1575 %B = sext i8 %A to i32 1576 %C = lshr i32 %B, 6 1577 call void @use_i32(i32 %C) 1578 %D = trunc i32 %C to i8 1579 ret i8 %D 1580} 1581 1582define <2 x i8> @trunc_lshr_sext_uses3(<2 x i8> %A) { 1583; ALL-LABEL: @trunc_lshr_sext_uses3( 1584; ALL-NEXT: [[B:%.*]] = sext <2 x i8> [[A:%.*]] to <2 x i32> 1585; ALL-NEXT: call void @use_v2i32(<2 x i32> [[B]]) 1586; ALL-NEXT: [[C:%.*]] = lshr <2 x i32> [[B]], splat (i32 6) 1587; ALL-NEXT: call void @use_v2i32(<2 x i32> [[C]]) 1588; ALL-NEXT: [[D:%.*]] = ashr <2 x i8> [[A]], splat (i8 6) 1589; ALL-NEXT: ret <2 x i8> [[D]] 1590; 1591 %B = sext <2 x i8 >%A to <2 x i32> 1592 call void @use_v2i32(<2 x i32> %B) 1593 %C = lshr <2 x i32> %B, <i32 6, i32 6> 1594 call void @use_v2i32(<2 x i32> %C) 1595 %D = trunc <2 x i32 >%C to <2 x i8> 1596 ret <2 x i8> %D 1597} 1598 1599define <2 x i8> @trunc_lshr_overshift_sext(<2 x i8> %A) { 1600; ALL-LABEL: @trunc_lshr_overshift_sext( 1601; ALL-NEXT: [[D:%.*]] = ashr <2 x i8> [[A:%.*]], splat (i8 7) 1602; ALL-NEXT: ret <2 x i8> [[D]] 1603; 1604 %B = sext <2 x i8> %A to <2 x i32> 1605 %C = lshr <2 x i32> %B, <i32 8, i32 8> 1606 %D = trunc <2 x i32> %C to <2 x i8> 1607 ret <2 x i8> %D 1608} 1609 1610define i8 @trunc_lshr_overshift_sext_uses1(i8 %A) { 1611; ALL-LABEL: @trunc_lshr_overshift_sext_uses1( 1612; ALL-NEXT: [[B:%.*]] = sext i8 [[A:%.*]] to i32 1613; ALL-NEXT: call void @use_i32(i32 [[B]]) 1614; ALL-NEXT: [[D:%.*]] = ashr i8 [[A]], 7 1615; ALL-NEXT: ret i8 [[D]] 1616; 1617 %B = sext i8 %A to i32 1618 call void @use_i32(i32 %B) 1619 %C = lshr i32 %B, 8 1620 %D = trunc i32 %C to i8 1621 ret i8 %D 1622} 1623 1624define <2 x i8> @trunc_lshr_overshift_sext_uses2(<2 x i8> %A) { 1625; ALL-LABEL: @trunc_lshr_overshift_sext_uses2( 1626; ALL-NEXT: [[B:%.*]] = sext <2 x i8> [[A:%.*]] to <2 x i32> 1627; ALL-NEXT: [[C:%.*]] = lshr <2 x i32> [[B]], splat (i32 8) 1628; ALL-NEXT: call void @use_v2i32(<2 x i32> [[C]]) 1629; ALL-NEXT: [[D:%.*]] = ashr <2 x i8> [[A]], splat (i8 7) 1630; ALL-NEXT: ret <2 x i8> [[D]] 1631; 1632 %B = sext <2 x i8> %A to <2 x i32> 1633 %C = lshr <2 x i32> %B, <i32 8, i32 8> 1634 call void @use_v2i32(<2 x i32> %C) 1635 %D = trunc <2 x i32> %C to <2 x i8> 1636 ret <2 x i8> %D 1637} 1638 1639define i8 @trunc_lshr_overshift_sext_uses3(i8 %A) { 1640; ALL-LABEL: @trunc_lshr_overshift_sext_uses3( 1641; ALL-NEXT: [[B:%.*]] = sext i8 [[A:%.*]] to i32 1642; ALL-NEXT: call void @use_i32(i32 [[B]]) 1643; ALL-NEXT: [[C:%.*]] = lshr i32 [[B]], 8 1644; ALL-NEXT: call void @use_i32(i32 [[C]]) 1645; ALL-NEXT: [[D:%.*]] = ashr i8 [[A]], 7 1646; ALL-NEXT: ret i8 [[D]] 1647; 1648 %B = sext i8 %A to i32 1649 call void @use_i32(i32 %B) 1650 %C = lshr i32 %B, 8 1651 call void @use_i32(i32 %C) 1652 %D = trunc i32 %C to i8 1653 ret i8 %D 1654} 1655 1656define i8 @trunc_lshr_sext_wide_input(i16 %A) { 1657; ALL-LABEL: @trunc_lshr_sext_wide_input( 1658; ALL-NEXT: [[TMP1:%.*]] = ashr i16 [[A:%.*]], 9 1659; ALL-NEXT: [[D:%.*]] = trunc nsw i16 [[TMP1]] to i8 1660; ALL-NEXT: ret i8 [[D]] 1661; 1662 %B = sext i16 %A to i32 1663 %C = lshr i32 %B, 9 1664 %D = trunc i32 %C to i8 1665 ret i8 %D 1666} 1667 1668define i8 @trunc_lshr_sext_wide_input_exact(i16 %A) { 1669; ALL-LABEL: @trunc_lshr_sext_wide_input_exact( 1670; ALL-NEXT: [[TMP1:%.*]] = ashr exact i16 [[A:%.*]], 9 1671; ALL-NEXT: [[D:%.*]] = trunc nsw i16 [[TMP1]] to i8 1672; ALL-NEXT: ret i8 [[D]] 1673; 1674 %B = sext i16 %A to i32 1675 %C = lshr exact i32 %B, 9 1676 %D = trunc i32 %C to i8 1677 ret i8 %D 1678} 1679 1680define <2 x i8> @trunc_lshr_sext_wide_input_uses1(<2 x i16> %A) { 1681; ALL-LABEL: @trunc_lshr_sext_wide_input_uses1( 1682; ALL-NEXT: [[B:%.*]] = sext <2 x i16> [[A:%.*]] to <2 x i32> 1683; ALL-NEXT: call void @use_v2i32(<2 x i32> [[B]]) 1684; ALL-NEXT: [[TMP1:%.*]] = ashr <2 x i16> [[A]], splat (i16 9) 1685; ALL-NEXT: [[D:%.*]] = trunc nsw <2 x i16> [[TMP1]] to <2 x i8> 1686; ALL-NEXT: ret <2 x i8> [[D]] 1687; 1688 %B = sext <2 x i16> %A to <2 x i32> 1689 call void @use_v2i32(<2 x i32> %B) 1690 %C = lshr <2 x i32> %B, <i32 9, i32 9> 1691 %D = trunc <2 x i32> %C to <2 x i8> 1692 ret <2 x i8> %D 1693} 1694 1695define i8 @trunc_lshr_sext_wide_input_uses2(i16 %A) { 1696; ALL-LABEL: @trunc_lshr_sext_wide_input_uses2( 1697; ALL-NEXT: [[B:%.*]] = sext i16 [[A:%.*]] to i32 1698; ALL-NEXT: [[C:%.*]] = lshr i32 [[B]], 9 1699; ALL-NEXT: call void @use_i32(i32 [[C]]) 1700; ALL-NEXT: [[D:%.*]] = trunc i32 [[C]] to i8 1701; ALL-NEXT: ret i8 [[D]] 1702; 1703 %B = sext i16 %A to i32 1704 %C = lshr i32 %B, 9 1705 call void @use_i32(i32 %C) 1706 %D = trunc i32 %C to i8 1707 ret i8 %D 1708} 1709 1710define <2 x i8> @trunc_lshr_sext_wide_input_uses3(<2 x i16> %A) { 1711; ALL-LABEL: @trunc_lshr_sext_wide_input_uses3( 1712; ALL-NEXT: [[B:%.*]] = sext <2 x i16> [[A:%.*]] to <2 x i32> 1713; ALL-NEXT: call void @use_v2i32(<2 x i32> [[B]]) 1714; ALL-NEXT: [[C:%.*]] = lshr <2 x i32> [[B]], splat (i32 9) 1715; ALL-NEXT: call void @use_v2i32(<2 x i32> [[C]]) 1716; ALL-NEXT: [[D:%.*]] = trunc <2 x i32> [[C]] to <2 x i8> 1717; ALL-NEXT: ret <2 x i8> [[D]] 1718; 1719 %B = sext <2 x i16 >%A to <2 x i32> 1720 call void @use_v2i32(<2 x i32> %B) 1721 %C = lshr <2 x i32> %B, <i32 9, i32 9> 1722 call void @use_v2i32(<2 x i32> %C) 1723 %D = trunc <2 x i32 >%C to <2 x i8> 1724 ret <2 x i8> %D 1725} 1726 1727define <2 x i8> @trunc_lshr_overshift_wide_input_sext(<2 x i16> %A) { 1728; ALL-LABEL: @trunc_lshr_overshift_wide_input_sext( 1729; ALL-NEXT: [[TMP1:%.*]] = ashr <2 x i16> [[A:%.*]], splat (i16 15) 1730; ALL-NEXT: [[D:%.*]] = trunc nsw <2 x i16> [[TMP1]] to <2 x i8> 1731; ALL-NEXT: ret <2 x i8> [[D]] 1732; 1733 %B = sext <2 x i16> %A to <2 x i32> 1734 %C = lshr <2 x i32> %B, <i32 16, i32 16> 1735 %D = trunc <2 x i32> %C to <2 x i8> 1736 ret <2 x i8> %D 1737} 1738 1739define i8 @trunc_lshr_overshift_sext_wide_input_uses1(i16 %A) { 1740; ALL-LABEL: @trunc_lshr_overshift_sext_wide_input_uses1( 1741; ALL-NEXT: [[B:%.*]] = sext i16 [[A:%.*]] to i32 1742; ALL-NEXT: call void @use_i32(i32 [[B]]) 1743; ALL-NEXT: [[TMP1:%.*]] = ashr i16 [[A]], 15 1744; ALL-NEXT: [[D:%.*]] = trunc nsw i16 [[TMP1]] to i8 1745; ALL-NEXT: ret i8 [[D]] 1746; 1747 %B = sext i16 %A to i32 1748 call void @use_i32(i32 %B) 1749 %C = lshr i32 %B, 16 1750 %D = trunc i32 %C to i8 1751 ret i8 %D 1752} 1753 1754define <2 x i8> @trunc_lshr_overshift_sext_wide_input_uses2(<2 x i16> %A) { 1755; ALL-LABEL: @trunc_lshr_overshift_sext_wide_input_uses2( 1756; ALL-NEXT: [[TMP1:%.*]] = ashr <2 x i16> [[A:%.*]], splat (i16 15) 1757; ALL-NEXT: [[C:%.*]] = zext <2 x i16> [[TMP1]] to <2 x i32> 1758; ALL-NEXT: call void @use_v2i32(<2 x i32> [[C]]) 1759; ALL-NEXT: [[D:%.*]] = trunc nsw <2 x i16> [[TMP1]] to <2 x i8> 1760; ALL-NEXT: ret <2 x i8> [[D]] 1761; 1762 %B = sext <2 x i16> %A to <2 x i32> 1763 %C = lshr <2 x i32> %B, <i32 16, i32 16> 1764 call void @use_v2i32(<2 x i32> %C) 1765 %D = trunc <2 x i32> %C to <2 x i8> 1766 ret <2 x i8> %D 1767} 1768 1769define i8 @trunc_lshr_overshift_sext_wide_input_uses3(i16 %A) { 1770; ALL-LABEL: @trunc_lshr_overshift_sext_wide_input_uses3( 1771; ALL-NEXT: [[B:%.*]] = sext i16 [[A:%.*]] to i32 1772; ALL-NEXT: call void @use_i32(i32 [[B]]) 1773; ALL-NEXT: [[C:%.*]] = lshr i32 [[B]], 16 1774; ALL-NEXT: call void @use_i32(i32 [[C]]) 1775; ALL-NEXT: [[D:%.*]] = trunc i32 [[C]] to i8 1776; ALL-NEXT: ret i8 [[D]] 1777; 1778 %B = sext i16 %A to i32 1779 call void @use_i32(i32 %B) 1780 %C = lshr i32 %B, 16 1781 call void @use_i32(i32 %C) 1782 %D = trunc i32 %C to i8 1783 ret i8 %D 1784} 1785 1786define i16 @trunc_lshr_sext_narrow_input(i8 %A) { 1787; ALL-LABEL: @trunc_lshr_sext_narrow_input( 1788; ALL-NEXT: [[TMP1:%.*]] = ashr i8 [[A:%.*]], 6 1789; ALL-NEXT: [[D:%.*]] = sext i8 [[TMP1]] to i16 1790; ALL-NEXT: ret i16 [[D]] 1791; 1792 %B = sext i8 %A to i32 1793 %C = lshr i32 %B, 6 1794 %D = trunc i32 %C to i16 1795 ret i16 %D 1796} 1797 1798define <2 x i16> @trunc_lshr_sext_narrow_input_uses1(<2 x i8> %A) { 1799; ALL-LABEL: @trunc_lshr_sext_narrow_input_uses1( 1800; ALL-NEXT: [[B:%.*]] = sext <2 x i8> [[A:%.*]] to <2 x i32> 1801; ALL-NEXT: call void @use_v2i32(<2 x i32> [[B]]) 1802; ALL-NEXT: [[TMP1:%.*]] = ashr <2 x i8> [[A]], splat (i8 6) 1803; ALL-NEXT: [[D:%.*]] = sext <2 x i8> [[TMP1]] to <2 x i16> 1804; ALL-NEXT: ret <2 x i16> [[D]] 1805; 1806 %B = sext <2 x i8> %A to <2 x i32> 1807 call void @use_v2i32(<2 x i32> %B) 1808 %C = lshr <2 x i32> %B, <i32 6, i32 6> 1809 %D = trunc <2 x i32> %C to <2 x i16> 1810 ret <2 x i16> %D 1811} 1812 1813define i16 @trunc_lshr_sext_narrow_input_uses2(i8 %A) { 1814; ALL-LABEL: @trunc_lshr_sext_narrow_input_uses2( 1815; ALL-NEXT: [[B:%.*]] = sext i8 [[A:%.*]] to i32 1816; ALL-NEXT: [[C:%.*]] = lshr i32 [[B]], 6 1817; ALL-NEXT: call void @use_i32(i32 [[C]]) 1818; ALL-NEXT: [[D:%.*]] = trunc i32 [[C]] to i16 1819; ALL-NEXT: ret i16 [[D]] 1820; 1821 %B = sext i8 %A to i32 1822 %C = lshr i32 %B, 6 1823 call void @use_i32(i32 %C) 1824 %D = trunc i32 %C to i16 1825 ret i16 %D 1826} 1827 1828define <2 x i16> @trunc_lshr_sext_narrow_input_uses3(<2 x i8> %A) { 1829; ALL-LABEL: @trunc_lshr_sext_narrow_input_uses3( 1830; ALL-NEXT: [[B:%.*]] = sext <2 x i8> [[A:%.*]] to <2 x i32> 1831; ALL-NEXT: call void @use_v2i32(<2 x i32> [[B]]) 1832; ALL-NEXT: [[C:%.*]] = lshr <2 x i32> [[B]], splat (i32 6) 1833; ALL-NEXT: call void @use_v2i32(<2 x i32> [[C]]) 1834; ALL-NEXT: [[D:%.*]] = trunc <2 x i32> [[C]] to <2 x i16> 1835; ALL-NEXT: ret <2 x i16> [[D]] 1836; 1837 %B = sext <2 x i8 >%A to <2 x i32> 1838 call void @use_v2i32(<2 x i32> %B) 1839 %C = lshr <2 x i32> %B, <i32 6, i32 6> 1840 call void @use_v2i32(<2 x i32> %C) 1841 %D = trunc <2 x i32 >%C to <2 x i16> 1842 ret <2 x i16> %D 1843} 1844 1845define <2 x i16> @trunc_lshr_overshift_narrow_input_sext(<2 x i8> %A) { 1846; ALL-LABEL: @trunc_lshr_overshift_narrow_input_sext( 1847; ALL-NEXT: [[TMP1:%.*]] = ashr <2 x i8> [[A:%.*]], splat (i8 7) 1848; ALL-NEXT: [[D:%.*]] = sext <2 x i8> [[TMP1]] to <2 x i16> 1849; ALL-NEXT: ret <2 x i16> [[D]] 1850; 1851 %B = sext <2 x i8> %A to <2 x i32> 1852 %C = lshr <2 x i32> %B, <i32 8, i32 8> 1853 %D = trunc <2 x i32> %C to <2 x i16> 1854 ret <2 x i16> %D 1855} 1856 1857define i16 @trunc_lshr_overshift_sext_narrow_input_uses1(i8 %A) { 1858; ALL-LABEL: @trunc_lshr_overshift_sext_narrow_input_uses1( 1859; ALL-NEXT: [[B:%.*]] = sext i8 [[A:%.*]] to i32 1860; ALL-NEXT: call void @use_i32(i32 [[B]]) 1861; ALL-NEXT: [[TMP1:%.*]] = ashr i8 [[A]], 7 1862; ALL-NEXT: [[D:%.*]] = sext i8 [[TMP1]] to i16 1863; ALL-NEXT: ret i16 [[D]] 1864; 1865 %B = sext i8 %A to i32 1866 call void @use_i32(i32 %B) 1867 %C = lshr i32 %B, 8 1868 %D = trunc i32 %C to i16 1869 ret i16 %D 1870} 1871 1872define <2 x i16> @trunc_lshr_overshift_sext_narrow_input_uses2(<2 x i8> %A) { 1873; ALL-LABEL: @trunc_lshr_overshift_sext_narrow_input_uses2( 1874; ALL-NEXT: [[B:%.*]] = sext <2 x i8> [[A:%.*]] to <2 x i32> 1875; ALL-NEXT: [[C:%.*]] = lshr <2 x i32> [[B]], splat (i32 8) 1876; ALL-NEXT: call void @use_v2i32(<2 x i32> [[C]]) 1877; ALL-NEXT: [[D:%.*]] = trunc <2 x i32> [[C]] to <2 x i16> 1878; ALL-NEXT: ret <2 x i16> [[D]] 1879; 1880 %B = sext <2 x i8> %A to <2 x i32> 1881 %C = lshr <2 x i32> %B, <i32 8, i32 8> 1882 call void @use_v2i32(<2 x i32> %C) 1883 %D = trunc <2 x i32> %C to <2 x i16> 1884 ret <2 x i16> %D 1885} 1886 1887define i16 @trunc_lshr_overshift_sext_narrow_input_uses3(i8 %A) { 1888; ALL-LABEL: @trunc_lshr_overshift_sext_narrow_input_uses3( 1889; ALL-NEXT: [[B:%.*]] = sext i8 [[A:%.*]] to i32 1890; ALL-NEXT: call void @use_i32(i32 [[B]]) 1891; ALL-NEXT: [[C:%.*]] = lshr i32 [[B]], 8 1892; ALL-NEXT: call void @use_i32(i32 [[C]]) 1893; ALL-NEXT: [[D:%.*]] = trunc i32 [[C]] to i16 1894; ALL-NEXT: ret i16 [[D]] 1895; 1896 %B = sext i8 %A to i32 1897 call void @use_i32(i32 %B) 1898 %C = lshr i32 %B, 8 1899 call void @use_i32(i32 %C) 1900 %D = trunc i32 %C to i16 1901 ret i16 %D 1902} 1903 1904define <2 x i8> @trunc_lshr_overshift2_sext(<2 x i8> %A) { 1905; ALL-LABEL: @trunc_lshr_overshift2_sext( 1906; ALL-NEXT: [[B:%.*]] = sext <2 x i8> [[A:%.*]] to <2 x i32> 1907; ALL-NEXT: [[C:%.*]] = lshr <2 x i32> [[B]], splat (i32 25) 1908; ALL-NEXT: [[D:%.*]] = trunc nuw nsw <2 x i32> [[C]] to <2 x i8> 1909; ALL-NEXT: ret <2 x i8> [[D]] 1910; 1911 %B = sext <2 x i8> %A to <2 x i32> 1912 %C = lshr <2 x i32> %B, <i32 25, i32 25> 1913 %D = trunc <2 x i32> %C to <2 x i8> 1914 ret <2 x i8> %D 1915} 1916 1917define i8 @trunc_lshr_overshift2_sext_uses1(i8 %A) { 1918; ALL-LABEL: @trunc_lshr_overshift2_sext_uses1( 1919; ALL-NEXT: [[B:%.*]] = sext i8 [[A:%.*]] to i32 1920; ALL-NEXT: call void @use_i32(i32 [[B]]) 1921; ALL-NEXT: [[C:%.*]] = lshr i32 [[B]], 25 1922; ALL-NEXT: [[D:%.*]] = trunc nuw nsw i32 [[C]] to i8 1923; ALL-NEXT: ret i8 [[D]] 1924; 1925 %B = sext i8 %A to i32 1926 call void @use_i32(i32 %B) 1927 %C = lshr i32 %B, 25 1928 %D = trunc i32 %C to i8 1929 ret i8 %D 1930} 1931 1932define <2 x i8> @trunc_lshr_overshift2_sext_uses2(<2 x i8> %A) { 1933; ALL-LABEL: @trunc_lshr_overshift2_sext_uses2( 1934; ALL-NEXT: [[B:%.*]] = sext <2 x i8> [[A:%.*]] to <2 x i32> 1935; ALL-NEXT: [[C:%.*]] = lshr <2 x i32> [[B]], splat (i32 25) 1936; ALL-NEXT: call void @use_v2i32(<2 x i32> [[C]]) 1937; ALL-NEXT: [[D:%.*]] = trunc nuw nsw <2 x i32> [[C]] to <2 x i8> 1938; ALL-NEXT: ret <2 x i8> [[D]] 1939; 1940 %B = sext <2 x i8> %A to <2 x i32> 1941 %C = lshr <2 x i32> %B, <i32 25, i32 25> 1942 call void @use_v2i32(<2 x i32> %C) 1943 %D = trunc <2 x i32> %C to <2 x i8> 1944 ret <2 x i8> %D 1945} 1946 1947define i8 @trunc_lshr_overshift2_sext_uses3(i8 %A) { 1948; ALL-LABEL: @trunc_lshr_overshift2_sext_uses3( 1949; ALL-NEXT: [[B:%.*]] = sext i8 [[A:%.*]] to i32 1950; ALL-NEXT: call void @use_i32(i32 [[B]]) 1951; ALL-NEXT: [[C:%.*]] = lshr i32 [[B]], 25 1952; ALL-NEXT: call void @use_i32(i32 [[C]]) 1953; ALL-NEXT: [[D:%.*]] = trunc nuw nsw i32 [[C]] to i8 1954; ALL-NEXT: ret i8 [[D]] 1955; 1956 %B = sext i8 %A to i32 1957 call void @use_i32(i32 %B) 1958 %C = lshr i32 %B, 25 1959 call void @use_i32(i32 %C) 1960 %D = trunc i32 %C to i8 1961 ret i8 %D 1962} 1963 1964define i8 @trunc_lshr_zext(i8 %A) { 1965; ALL-LABEL: @trunc_lshr_zext( 1966; ALL-NEXT: [[TMP1:%.*]] = lshr i8 [[A:%.*]], 6 1967; ALL-NEXT: ret i8 [[TMP1]] 1968; 1969 %B = zext i8 %A to i32 1970 %C = lshr i32 %B, 6 1971 %D = trunc i32 %C to i8 1972 ret i8 %D 1973} 1974 1975define i8 @trunc_lshr_zext_exact(i8 %A) { 1976; ALL-LABEL: @trunc_lshr_zext_exact( 1977; ALL-NEXT: [[TMP1:%.*]] = lshr i8 [[A:%.*]], 6 1978; ALL-NEXT: ret i8 [[TMP1]] 1979; 1980 %B = zext i8 %A to i32 1981 %C = lshr exact i32 %B, 6 1982 %D = trunc i32 %C to i8 1983 ret i8 %D 1984} 1985 1986define <2 x i8> @trunc_lshr_zext_uniform(<2 x i8> %A) { 1987; ALL-LABEL: @trunc_lshr_zext_uniform( 1988; ALL-NEXT: [[TMP1:%.*]] = lshr <2 x i8> [[A:%.*]], splat (i8 6) 1989; ALL-NEXT: ret <2 x i8> [[TMP1]] 1990; 1991 %B = zext <2 x i8> %A to <2 x i32> 1992 %C = lshr <2 x i32> %B, <i32 6, i32 6> 1993 %D = trunc <2 x i32> %C to <2 x i8> 1994 ret <2 x i8> %D 1995} 1996 1997define <2 x i8> @trunc_lshr_zext_uniform_poison(<2 x i8> %A) { 1998; ALL-LABEL: @trunc_lshr_zext_uniform_poison( 1999; ALL-NEXT: [[C:%.*]] = lshr <2 x i8> [[A:%.*]], <i8 6, i8 poison> 2000; ALL-NEXT: ret <2 x i8> [[C]] 2001; 2002 %B = zext <2 x i8> %A to <2 x i32> 2003 %C = lshr <2 x i32> %B, <i32 6, i32 poison> 2004 %D = trunc <2 x i32> %C to <2 x i8> 2005 ret <2 x i8> %D 2006} 2007 2008define <2 x i8> @trunc_lshr_zext_nonuniform(<2 x i8> %A) { 2009; ALL-LABEL: @trunc_lshr_zext_nonuniform( 2010; ALL-NEXT: [[C:%.*]] = lshr <2 x i8> [[A:%.*]], <i8 6, i8 2> 2011; ALL-NEXT: ret <2 x i8> [[C]] 2012; 2013 %B = zext <2 x i8> %A to <2 x i32> 2014 %C = lshr <2 x i32> %B, <i32 6, i32 2> 2015 %D = trunc <2 x i32> %C to <2 x i8> 2016 ret <2 x i8> %D 2017} 2018 2019define <3 x i8> @trunc_lshr_zext_nonuniform_poison(<3 x i8> %A) { 2020; ALL-LABEL: @trunc_lshr_zext_nonuniform_poison( 2021; ALL-NEXT: [[C:%.*]] = lshr <3 x i8> [[A:%.*]], <i8 6, i8 2, i8 poison> 2022; ALL-NEXT: ret <3 x i8> [[C]] 2023; 2024 %B = zext <3 x i8> %A to <3 x i32> 2025 %C = lshr <3 x i32> %B, <i32 6, i32 2, i32 poison> 2026 %D = trunc <3 x i32> %C to <3 x i8> 2027 ret <3 x i8> %D 2028} 2029 2030define <2 x i8> @trunc_lshr_zext_uses1(<2 x i8> %A) { 2031; ALL-LABEL: @trunc_lshr_zext_uses1( 2032; ALL-NEXT: [[B:%.*]] = zext <2 x i8> [[A:%.*]] to <2 x i32> 2033; ALL-NEXT: call void @use_v2i32(<2 x i32> [[B]]) 2034; ALL-NEXT: [[C:%.*]] = lshr <2 x i8> [[A]], splat (i8 6) 2035; ALL-NEXT: ret <2 x i8> [[C]] 2036; 2037 %B = zext <2 x i8> %A to <2 x i32> 2038 call void @use_v2i32(<2 x i32> %B) 2039 %C = lshr <2 x i32> %B, <i32 6, i32 6> 2040 %D = trunc <2 x i32> %C to <2 x i8> 2041 ret <2 x i8> %D 2042} 2043 2044; The following four tests sext + lshr + trunc patterns. 2045; PR33078 2046 2047define i8 @pr33078_1(i8 %A) { 2048; ALL-LABEL: @pr33078_1( 2049; ALL-NEXT: [[TMP1:%.*]] = ashr i8 [[A:%.*]], 7 2050; ALL-NEXT: ret i8 [[TMP1]] 2051; 2052 %B = sext i8 %A to i16 2053 %C = lshr i16 %B, 8 2054 %D = trunc i16 %C to i8 2055 ret i8 %D 2056} 2057 2058define i12 @pr33078_2(i8 %A) { 2059; ALL-LABEL: @pr33078_2( 2060; ALL-NEXT: [[TMP1:%.*]] = ashr i8 [[A:%.*]], 4 2061; ALL-NEXT: [[D:%.*]] = sext i8 [[TMP1]] to i12 2062; ALL-NEXT: ret i12 [[D]] 2063; 2064 %B = sext i8 %A to i16 2065 %C = lshr i16 %B, 4 2066 %D = trunc i16 %C to i12 2067 ret i12 %D 2068} 2069 2070define i4 @pr33078_3(i8 %A) { 2071; ALL-LABEL: @pr33078_3( 2072; ALL-NEXT: [[B:%.*]] = sext i8 [[A:%.*]] to i16 2073; ALL-NEXT: [[C:%.*]] = lshr i16 [[B]], 12 2074; ALL-NEXT: [[D:%.*]] = trunc nuw i16 [[C]] to i4 2075; ALL-NEXT: ret i4 [[D]] 2076; 2077 %B = sext i8 %A to i16 2078 %C = lshr i16 %B, 12 2079 %D = trunc i16 %C to i4 2080 ret i4 %D 2081} 2082 2083define i8 @pr33078_4(i3 %x) { 2084; Don't turn this in an `ashr`. This was getting miscompiled 2085; ALL-LABEL: @pr33078_4( 2086; ALL-NEXT: [[B:%.*]] = sext i3 [[X:%.*]] to i16 2087; ALL-NEXT: [[C:%.*]] = lshr i16 [[B]], 13 2088; ALL-NEXT: [[D:%.*]] = trunc nuw nsw i16 [[C]] to i8 2089; ALL-NEXT: ret i8 [[D]] 2090; 2091 %B = sext i3 %x to i16 2092 %C = lshr i16 %B, 13 2093 %D = trunc i16 %C to i8 2094 ret i8 %D 2095} 2096 2097; (sext (xor (cmp), -1)) -> (sext (!cmp)) 2098define i64 @test94(i32 %a) { 2099; ALL-LABEL: @test94( 2100; ALL-NEXT: [[TMP1:%.*]] = icmp ne i32 [[A:%.*]], -2 2101; ALL-NEXT: [[TMP2:%.*]] = sext i1 [[TMP1]] to i64 2102; ALL-NEXT: ret i64 [[TMP2]] 2103; 2104 %1 = icmp eq i32 %a, -2 2105 %2 = sext i1 %1 to i8 2106 %3 = xor i8 %2, -1 2107 %4 = sext i8 %3 to i64 2108 ret i64 %4 2109} 2110 2111; We should be able to remove the zext and trunc here. 2112define i32 @test95(i32 %x) { 2113; ALL-LABEL: @test95( 2114; ALL-NEXT: [[TMP1:%.*]] = lshr i32 [[X:%.*]], 6 2115; ALL-NEXT: [[TMP2:%.*]] = and i32 [[TMP1]], 2 2116; ALL-NEXT: [[TMP3:%.*]] = or disjoint i32 [[TMP2]], 40 2117; ALL-NEXT: ret i32 [[TMP3]] 2118; 2119 %1 = trunc i32 %x to i8 2120 %2 = lshr i8 %1, 6 2121 %3 = and i8 %2, 2 2122 %4 = or i8 %3, 40 2123 %5 = zext i8 %4 to i32 2124 ret i32 %5 2125} 2126