| ; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+sse4.1 | FileCheck %s |
| ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse4.1 | FileCheck %s |
| |
| ; When commuting the operands of a SSE blend, make sure that the resulting blend |
| ; mask can be encoded as a imm8. |
| ; Before, when commuting the operands to the shuffle in function @test, the backend |
| ; produced the following assembly: |
| ; pblendw $4294967103, %xmm1, %xmm0 |
| |
| define <4 x i32> @test(<4 x i32> %a, <4 x i32> %b) { |
| ; CHECK: pblendw $63, %xmm1, %xmm0 |
| %shuffle = shufflevector <4 x i32> %a, <4 x i32> %b, <4 x i32> <i32 4, i32 5, i32 6, i32 3> |
| ; add forces execution domain |
| %sum = add <4 x i32> %shuffle, %shuffle |
| ret <4 x i32> %sum |
| } |
