; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7-avx -mattr=+avx | FileCheck %s ; CHECK-NOT: vunpck ; CHECK: vextractf128 $1 define <8 x float> @A(<8 x float> %a) nounwind uwtable readnone ssp { entry: %shuffle = shufflevector <8 x float> %a, <8 x float> undef, <8 x i32> ret <8 x float> %shuffle } ; CHECK-NOT: vunpck ; CHECK: vextractf128 $1 define <4 x double> @B(<4 x double> %a) nounwind uwtable readnone ssp { entry: %shuffle = shufflevector <4 x double> %a, <4 x double> undef, <4 x i32> ret <4 x double> %shuffle }