diff options
Diffstat (limited to 'test/CodeGen/X86/sse1.ll')
| -rw-r--r-- | test/CodeGen/X86/sse1.ll | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/test/CodeGen/X86/sse1.ll b/test/CodeGen/X86/sse1.ll index 6e7aad8..73f88ae 100644 --- a/test/CodeGen/X86/sse1.ll +++ b/test/CodeGen/X86/sse1.ll @@ -18,3 +18,28 @@ define <8 x i16> @test2(<8 x i32> %a) nounwind { ; %c = sext <4 x i16> %a to <4 x i32> ; <<4 x i32>> [#uses=1] ; ret <4 x i32> %c ;} + +; This should not emit shuffles to populate the top 2 elements of the 4-element +; vector that this ends up returning. +; rdar://8368414 +define <2 x float> @test4(<2 x float> %A, <2 x float> %B) nounwind { +entry: + %tmp7 = extractelement <2 x float> %A, i32 0 + %tmp5 = extractelement <2 x float> %A, i32 1 + %tmp3 = extractelement <2 x float> %B, i32 0 + %tmp1 = extractelement <2 x float> %B, i32 1 + %add.r = fadd float %tmp7, %tmp3 + %add.i = fsub float %tmp5, %tmp1 + %tmp11 = insertelement <2 x float> undef, float %add.r, i32 0 + %tmp9 = insertelement <2 x float> %tmp11, float %add.i, i32 1 + ret <2 x float> %tmp9 +; CHECK: test4: +; CHECK-NOT: shufps $16 +; CHECK: shufps $1, +; CHECK-NOT: shufps $16 +; CHECK: shufps $1, +; CHECK-NOT: shufps $16 +; CHECK: unpcklps +; CHECK-NOT: shufps $16 +; CHECK: ret +} |