| ; RUN: llc -mcpu=skylake-avx512 -mtriple=x86_64-unknown-linux-gnu %s -o - | FileCheck %s |
| |
| ; Check that the X86 Domain Reassignment pass doesn't drop IMPLICIT_DEF nodes, |
| ; which would later cause crashes (e.g. in LiveVariables) - see PR37430 |
| define void @domain_reassignment_implicit_def(i1 %cond, i8 *%mem, float %arg) { |
| ; CHECK: vxorps %xmm1, %xmm1, %xmm1 |
| ; CHECK: vcmpneqss %xmm1, %xmm0, %k0 |
| ; CHECK: kmovb %k0, (%rsi) |
| top: |
| br i1 %cond, label %L19, label %L15 |
| |
| L15: ; preds = %top |
| %tmp47 = fcmp une float 0.000000e+00, %arg |
| %tmp48 = zext i1 %tmp47 to i8 |
| br label %L21 |
| |
| L19: ; preds = %top |
| br label %L21 |
| |
| L21: ; preds = %L19, %L15 |
| %.sroa.0.0 = phi i8 [ undef, %L19 ], [ %tmp48, %L15 ] |
| store i8 %.sroa.0.0, i8* %mem, align 1 |
| ret void |
| } |
