1; RUN: opt -reassociate %s -S -o - | FileCheck %s 2 3; Reassociate pass used to crash on these example 4 5 6define float @undef1() { 7wrapper_entry: 8; CHECK-LABEL: @undef1 9; CHECK: ret float fadd (float undef, float fadd (float undef, float fadd (float fsub (float -0.000000e+00, float undef), float fsub (float -0.000000e+00, float undef)))) 10 %0 = fadd fast float undef, undef 11 %1 = fsub fast float undef, %0 12 %2 = fadd fast float undef, %1 13 ret float %2 14} 15 16define void @undef2() { 17wrapper_entry: 18; CHECK-LABEL: @undef2 19; CHECK: unreachable 20 %0 = fadd fast float undef, undef 21 %1 = fadd fast float %0, 1.000000e+00 22 %2 = fsub fast float %0, %1 23 %3 = fmul fast float %2, 2.000000e+00 24 unreachable 25} 26