Another shuffle test. For 4-wide shuffle, no more than 3 {p}shuf*.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27876 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/vec_shuffle-4.ll b/test/CodeGen/X86/vec_shuffle-4.ll
new file mode 100644 (file)
index 0000000..20a0a32
--- /dev/null
+++ b/test/CodeGen/X86/vec_shuffle-4.ll
@@ -0,0 +1,9 @@
+; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 | grep shuf | wc -l | grep 3
+; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 | not grep unpck
+void %test(<4 x float>* %res, <4 x float>* %A, <4 x float>* %B, <4 x float>* %C) {
+       %tmp3 = load <4 x float>* %B
+       %tmp5 = load <4 x float>* %C
+       %tmp11 = shufflevector <4 x float> %tmp3, <4 x float> %tmp5, <4 x uint> < uint 1, uint 4, uint 1, uint 5 >
+       store <4 x float> %tmp11, <4 x float>* %res
+       ret void
+}