1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt < %s -passes=instcombine -S | FileCheck %s 3 4; OSS-Fuzz: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=38057 5define void @PR51824(<4 x i16> %idxs, ptr %ptr, i1 %c1, ptr %ptr2) { 6; CHECK-LABEL: @PR51824( 7; CHECK-NEXT: entry: 8; CHECK-NEXT: br label [[BB:%.*]] 9; CHECK: BB: 10; CHECK-NEXT: br i1 [[C1:%.*]], label [[BB]], label [[BB1:%.*]] 11; CHECK: BB1: 12; CHECK-NEXT: ret void 13; 14entry: 15 %C7 = icmp sgt i1 false, true 16 %B2 = lshr i16 -32768, 0 17 %C1 = icmp uge i16 %B2, %B2 18 %E9 = extractelement <4 x i16> zeroinitializer, i16 %B2 19 %I2 = insertelement <4 x i16> poison, i16 %E9, i16 0 20 %i = sext <4 x i16> %I2 to <4 x i32> 21 %i1 = getelementptr inbounds i64, ptr null, <4 x i32> %i 22 %i2 = ptrtoint <4 x ptr> %i1 to <4 x i32> 23 %E2 = extractelement <4 x i32> %i2, i16 0 24 br label %BB 25 26BB: ; preds = %BB, %entry 27 %A15 = alloca <4 x i32>, align 16 28 %L2 = load <4 x i32>, ptr %A15, align 16 29 %G1 = getelementptr i64, ptr null, i32 %E2 30 %i3 = getelementptr inbounds i64, ptr %G1, <4 x i16> %idxs 31 %i4 = ptrtoint <4 x ptr> %i3 to <4 x i32> 32 %E22 = extractelement <4 x i32> %L2, i1 false 33 %E8 = extractelement <4 x i32> %i4, i1 false 34 %I10 = insertelement <4 x i32> undef, i32 undef, i32 %E8 35 %I19 = insertelement <4 x i32> %I10, i32 %E22, i16 0 36 %S7 = shufflevector <4 x i32> %I19, <4 x i32> %L2, <4 x i32> poison 37 %I8 = insertelement <4 x i32> %I19, i32 0, i1 %C1 38 %E10 = extractelement <4 x i32> %I8, i1 poison 39 store i32 %E10, ptr %ptr, align 4 40 br i1 %c1, label %BB, label %BB1 41 42BB1: ; preds = %BB 43 %S8 = shufflevector <4 x i32> %I10, <4 x i32> %S7, <4 x i32> undef 44 store <4 x i32> %S8, ptr %ptr2, align 16 45 ret void 46} 47