Add a new test case for 'undef' shuffles.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30172 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/vec_shuffle-8.ll b/test/CodeGen/X86/vec_shuffle-8.ll
new file mode 100644 (file)
index 0000000..449a3ab
--- /dev/null
+++ b/test/CodeGen/X86/vec_shuffle-8.ll
@@ -0,0 +1,9 @@
+; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 &&
+; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 | not grep shufps
+
+void %test(<4 x float>* %res, <4 x float>* %A) {
+       %tmp1 = load <4 x float>* %A
+       %tmp2 = shufflevector <4 x float> %tmp1, <4 x float> undef, <4 x uint> < uint 0, uint 5, uint 6, uint 7 >
+       store <4 x float> %tmp2, <4 x float>* %res
+       ret void
+}