[X86] Add test case for missed opportunity to use MOVLPS on the SSE1 only targets.

llvm-svn: 337319

diff --git a/llvm/test/CodeGen/X86/vector-shuffle-sse1.ll b/llvm/test/CodeGen/X86/vector-shuffle-sse1.ll
index 83ae1e6..5f8c21b 100644 (file)
--- a/llvm/test/CodeGen/X86/vector-shuffle-sse1.ll
+++ b/llvm/test/CodeGen/X86/vector-shuffle-sse1.ll
@@ -294,3 +294,15 @@ define <4 x float> @shuffle_mem_v4f32_6723(<4 x float> %a, <4 x float>* %pb) {
   %shuffle = shufflevector <4 x float> %a, <4 x float> %b, <4 x i32> <i32 6, i32 7, i32 2, i32 3>
   ret <4 x float> %shuffle
 }
+
+define <4 x float> @shuffle_mem_v4f32_4523(<4 x float> %a, <4 x float>* %pb) {
+; SSE1-LABEL: shuffle_mem_v4f32_4523:
+; SSE1:       # %bb.0:
+; SSE1-NEXT:    movaps (%rdi), %xmm1
+; SSE1-NEXT:    shufps {{.*#+}} xmm1 = xmm1[0,1],xmm0[2,3]
+; SSE1-NEXT:    movaps %xmm1, %xmm0
+; SSE1-NEXT:    retq
+  %b = load <4 x float>, <4 x float>* %pb, align 16
+  %shuffle = shufflevector <4 x float> %a, <4 x float> %b, <4 x i32> <i32 4, i32 5, i32 2, i32 3>
+  ret <4 x float> %shuffle
+}