; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=avx2,fma -stop-after=expand-isel-pseudos 2>&1 | FileCheck %s declare float @llvm.sqrt.f32(float) #0 define float @foo(float %f) #0 { ; CHECK: {{name: *foo}} ; CHECK: body: ; CHECK: %0:fr32 = COPY $xmm0 ; CHECK: %1:fr32 = VRSQRTSSr killed %2, %0 ; CHECK: %3:fr32 = VMULSSrr %0, %1 ; CHECK: %4:fr32 = VMOVSSrm ; CHECK: %5:fr32 = VFMADD213SSr %1, killed %3, %4 ; CHECK: %6:fr32 = VMOVSSrm ; CHECK: %7:fr32 = VMULSSrr %1, %6 ; CHECK: %8:fr32 = VMULSSrr killed %7, killed %5 ; CHECK: %9:fr32 = VMULSSrr %0, %8 ; CHECK: %10:fr32 = VFMADD213SSr %8, %9, %4 ; CHECK: %11:fr32 = VMULSSrr %9, %6 ; CHECK: %12:fr32 = VMULSSrr killed %11, killed %10 ; CHECK: %14:fr32 = FsFLD0SS ; CHECK: %15:fr32 = VCMPSSrr %0, killed %14, 0 ; CHECK: %17:vr128 = VANDNPSrr killed %16, killed %13 ; CHECK: $xmm0 = COPY %18 ; CHECK: RET 0, $xmm0 %call = tail call float @llvm.sqrt.f32(float %f) #1 ret float %call } define float @rfoo(float %f) #0 { ; CHECK: {{name: *rfoo}} ; CHECK: body: | ; CHECK: %0:fr32 = COPY $xmm0 ; CHECK: %1:fr32 = VRSQRTSSr killed %2, %0 ; CHECK: %3:fr32 = nnan ninf nsz arcp contract afn reassoc VMULSSrr %0, %1 ; CHECK: %4:fr32 = VMOVSSrm ; CHECK: %5:fr32 = nnan ninf nsz arcp contract afn reassoc VFMADD213SSr %1, killed %3, %4 ; CHECK: %6:fr32 = VMOVSSrm ; CHECK: %7:fr32 = nnan ninf nsz arcp contract afn reassoc VMULSSrr %1, %6 ; CHECK: %8:fr32 = nnan ninf nsz arcp contract afn reassoc VMULSSrr killed %7, killed %5 ; CHECK: %9:fr32 = nnan ninf nsz arcp contract afn reassoc VMULSSrr %0, %8 ; CHECK: %10:fr32 = nnan ninf nsz arcp contract afn reassoc VFMADD213SSr %8, killed %9, %4 ; CHECK: %11:fr32 = nnan ninf nsz arcp contract afn reassoc VMULSSrr %8, %6 ; CHECK: %12:fr32 = nnan ninf nsz arcp contract afn reassoc VMULSSrr killed %11, killed %10 ; CHECK: $xmm0 = COPY %12 ; CHECK: RET 0, $xmm0 %sqrt = tail call float @llvm.sqrt.f32(float %f) %div = fdiv fast float 1.0, %sqrt ret float %div } attributes #0 = { "unsafe-fp-math"="true" "reciprocal-estimates"="sqrt:2" } attributes #1 = { nounwind readnone }