; RUN: llc < %s -march=x86-64 -mcpu=penryn -mattr=sse41 | FileCheck %s define <8 x i16> @shuf6(<8 x i16> %T0, <8 x i16> %T1) nounwind readnone { ; CHECK: pshufb ; CHECK-NOT: pshufb ; CHECK: ret entry: %tmp9 = shufflevector <8 x i16> %T0, <8 x i16> %T1, <8 x i32> < i32 3, i32 2, i32 0, i32 2, i32 1, i32 5, i32 6 , i32 undef > ret <8 x i16> %tmp9 } define <8 x i16> @shuf7(<8 x i16> %t0) { ; CHECK: pshufd %tmp10 = shufflevector <8 x i16> %t0, <8 x i16> undef, <8 x i32> < i32 undef, i32 2, i32 2, i32 2, i32 2, i32 2, i32 undef, i32 undef > ret <8 x i16> %tmp10 }