1 ; RUN: llc < %s -mtriple=i686-unknown-unknown -mattr=+sse4.1 | FileCheck %s 2 ; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse4.1 | FileCheck %s 3 4 ; When commuting the operands of a SSE blend, make sure that the resulting blend 5 ; mask can be encoded as a imm8. 6 ; Before, when commuting the operands to the shuffle in function @test, the backend 7 ; produced the following assembly: 8 ; pblendw $4294967103, %xmm1, %xmm0 9 10 define <4 x i32> @test(<4 x i32> %a, <4 x i32> %b) { 11 ; CHECK: pblendw $63, %xmm1, %xmm0 12 %shuffle = shufflevector <4 x i32> %a, <4 x i32> %b, <4 x i32> <i32 4, i32 5, i32 6, i32 3> 13 ; add forces execution domain 14 %sum = add <4 x i32> %shuffle, %shuffle 15 ret <4 x i32> %sum 16 } 17
