1 ; RUN: llc < %s 2 3 ; llc built with address sanitizer crashes because of a dangling node pointer 4 ; oss-fuzz - DAGCombiner::useDivRem (5011) 5 6 define void @f() { 7 BB: 8 %A19 = alloca i1** 9 %C18 = icmp ugt i1 true, false 10 %L13 = load i8, i8* undef 11 %L10 = load i8, i8* undef 12 %B12 = and i8 %L13, %L10 13 %B35 = and i8 %B12, %L10 14 %L2 = load i66*, i66** undef 15 %L23 = load i66, i66* %L2 16 %B38 = urem i8 %B35, %B12 17 %B9 = ashr i66 %L23, %L23 18 %C11 = icmp sge i8 %B38, %B35 19 %A4 = alloca i66 20 %G4 = getelementptr i66, i66* %A4, i1 true 21 %L6 = load i66, i66* %G4 22 %B21 = urem i1 %C11, true 23 %B1 = mul i66 %B9, %L23 24 %B5 = udiv i8 %L10, %L13 25 %B22 = udiv i66 %B9, %B1 26 %C29 = icmp ult i32 -1, 0 27 store i1* undef, i1** undef 28 store i1 %C29, i1* undef 29 br label %BB1 30 31 BB1: ; preds = %BB 32 %G8 = getelementptr i66, i66* undef, i16 32767 33 %G43 = getelementptr i66, i66* undef, i66 -1 34 %L20 = load i1, i1* undef 35 %B7 = and i66 %L6, %L6 36 %B30 = sdiv i66 -36893488147419103232, -1 37 %B16 = urem i66 %B22, %L6 38 %G47 = getelementptr i66, i66* %G8, i66 %B16 39 store i66 %B7, i66* %G47 40 store i8 %B5, i8* undef 41 %C5 = icmp ult i1 %C18, %L20 42 store i66 %B30, i66* %G47 43 store i1** undef, i1*** %A19 44 store i1 %C5, i1* undef 45 store i1 %C11, i1* undef 46 store i66* %G43, i66** undef 47 store i1 %B21, i1* undef 48 %G59 = getelementptr i1, i1* undef, i1 false 49 %G61 = getelementptr i66, i66* %G8, i1 %L20 50 store i1 %L20, i1* %G59 51 store i66* %G61, i66** undef 52 ret void 53 } 54
