| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt < %s -instcombine -S | FileCheck %s |
| |
| ; OSS-Fuzz: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=38057 |
| define void @PR51824() { |
| ; CHECK-LABEL: @PR51824( |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: br label [[BB:%.*]] |
| ; CHECK: BB: |
| ; CHECK-NEXT: br i1 undef, label [[BB]], label [[BB1:%.*]] |
| ; CHECK: BB1: |
| ; CHECK-NEXT: ret void |
| ; |
| entry: |
| %C7 = icmp sgt i1 false, true |
| %B2 = lshr i16 -32768, 0 |
| %C1 = icmp uge i16 %B2, %B2 |
| %E9 = extractelement <4 x i16> zeroinitializer, i16 %B2 |
| %I2 = insertelement <4 x i16> undef, i16 %E9, i16 0 |
| %i = sext <4 x i16> %I2 to <4 x i32> |
| %i1 = getelementptr inbounds i64, i64* null, <4 x i32> %i |
| %i2 = ptrtoint <4 x i64*> %i1 to <4 x i32> |
| %E2 = extractelement <4 x i32> %i2, i16 0 |
| br label %BB |
| |
| BB: ; preds = %BB, %entry |
| %A15 = alloca <4 x i32>, align 16 |
| %L2 = load <4 x i32>, <4 x i32>* %A15, align 16 |
| %G1 = getelementptr i64, i64* null, i32 %E2 |
| %i3 = getelementptr inbounds i64, i64* %G1, <4 x i16> undef |
| %i4 = ptrtoint <4 x i64*> %i3 to <4 x i32> |
| %E22 = extractelement <4 x i32> %L2, i1 false |
| %E8 = extractelement <4 x i32> %i4, i1 false |
| %I10 = insertelement <4 x i32> undef, i32 undef, i32 %E8 |
| %I19 = insertelement <4 x i32> %I10, i32 %E22, i16 0 |
| %S7 = shufflevector <4 x i32> %I19, <4 x i32> %L2, <4 x i32> undef |
| %I8 = insertelement <4 x i32> %I19, i32 0, i1 %C1 |
| %E10 = extractelement <4 x i32> %I8, i1 undef |
| store i32 %E10, i32* undef, align 4 |
| br i1 undef, label %BB, label %BB1 |
| |
| BB1: ; preds = %BB |
| %S8 = shufflevector <4 x i32> %I10, <4 x i32> %S7, <4 x i32> undef |
| store <4 x i32> %S8, <4 x i32>* undef, align 16 |
| ret void |
| } |