1; RUN: opt -instcombine -S < %s | FileCheck %s
2
3define void @test(<4 x float> *%in_ptr, <4 x float> *%out_ptr) {
4  %A = load <4 x float>, <4 x float>* %in_ptr, align 16
5  %B = shufflevector <4 x float> %A, <4 x float> undef, <4 x i32> <i32 0, i32 0, i32 undef, i32 undef>
6  %C = shufflevector <4 x float> %B, <4 x float> %A, <4 x i32> <i32 0, i32 1, i32 4, i32 undef>
7  %D = shufflevector <4 x float> %C, <4 x float> %A, <4 x i32> <i32 0, i32 1, i32 2, i32 4>
8; CHECK:  %D = shufflevector <4 x float> %A, <4 x float> undef, <4 x i32> zeroinitializer
9  store <4 x float> %D, <4 x float> *%out_ptr
10  ret void
11}
12