1 ; RUN: llc -mcpu=skylake-avx512 -mtriple=x86_64-unknown-linux-gnu %s -o - | FileCheck %s 2 3 ; Check that the X86 Domain Reassignment pass doesn't drop IMPLICIT_DEF nodes, 4 ; which would later cause crashes (e.g. in LiveVariables) - see PR37430 5 define void @domain_reassignment_implicit_def(i1 %cond, i8 *%mem, float %arg) { 6 ; CHECK: vxorps %xmm1, %xmm1, %xmm1 7 ; CHECK: vcmpneqss %xmm1, %xmm0, %k0 8 ; CHECK: kmovb %k0, (%rsi) 9 top: 10 br i1 %cond, label %L19, label %L15 11 12 L15: ; preds = %top 13 %tmp47 = fcmp une float 0.000000e+00, %arg 14 %tmp48 = zext i1 %tmp47 to i8 15 br label %L21 16 17 L19: ; preds = %top 18 br label %L21 19 20 L21: ; preds = %L19, %L15 21 %.sroa.0.0 = phi i8 [ undef, %L19 ], [ %tmp48, %L15 ] 22 store i8 %.sroa.0.0, i8* %mem, align 1 23 ret void 24 } 25
