1; RUN: llc -mtriple=x86_64-unknown-unknown -mattr=+sse4.1 < %s | FileCheck %s
2
3; When commuting the operands of a SSE blend, make sure that the resulting blend
4; mask can be encoded as a imm8.
5; Before, when commuting the operands to the shuffle in function @test, the backend
6; produced the following assembly:
7;   pblendw $4294967103, %xmm1, %xmm0
8
9define <4 x i32> @test(<4 x i32> %a, <4 x i32> %b) {
10  ;CHECK: pblendw $63, %xmm1, %xmm0
11  %shuffle = shufflevector <4 x i32> %a, <4 x i32> %b, <4 x i32> <i32 4, i32 5, i32 6, i32 3>
12  ret <4 x i32> %shuffle
13}
14