[X86] Add test coverage for shuffle with freeze

diff --git a/llvm/test/CodeGen/X86/freeze-vector.ll b/llvm/test/CodeGen/X86/freeze-vector.ll
index af34e56..c308059 100644 (file)
--- a/llvm/test/CodeGen/X86/freeze-vector.ll
+++ b/llvm/test/CodeGen/X86/freeze-vector.ll
@@ -12,3 +12,15 @@ define <4 x i32> @freeze_insert_subvector(<8 x i32> %a0) nounwind {
   %z = shufflevector <8 x i32> %y, <8 x i32> poison, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
   ret <4 x i32> %z
 }
+
+define <4 x i32> @freeze_shufflevector(<4 x i32> %a0) nounwind {
+; CHECK-LABEL: freeze_shufflevector:
+; CHECK:       # %bb.0:
+; CHECK-NEXT:    vpermilps {{.*#+}} xmm0 = xmm0[3,2,1,0]
+; CHECK-NEXT:    vpermilps {{.*#+}} xmm0 = xmm0[3,2,1,0]
+; CHECK-NEXT:    ret{{[l|q]}}
+  %x = shufflevector <4 x i32> %a0, <4 x i32> poison, <4 x i32> <i32 3, i32 2, i32 1, i32 0>
+  %y = freeze <4 x i32> %x
+  %z = shufflevector <4 x i32> %y, <4 x i32> poison, <4 x i32> <i32 3, i32 2, i32 1, i32 0>
+  ret <4 x i32> %z
+}