New test case.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37174 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/2007-05-17-ShuffleISelBug.ll b/test/CodeGen/X86/2007-05-17-ShuffleISelBug.ll
new file mode 100644 (file)
index 0000000..33ff755
--- /dev/null
+++ b/test/CodeGen/X86/2007-05-17-ShuffleISelBug.ll
@@ -0,0 +1,23 @@
+; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2
+; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 | not grep punpckhwd
+
+declare <8 x i16> @llvm.x86.sse2.packuswb.128(<8 x i16>, <8 x i16>)
+
+declare <8 x i16> @llvm.x86.sse2.psrl.w(<8 x i16>, <4 x i32>)
+
+define fastcc void @test(i32* %src, i32 %sbpr, i32* %dst, i32 %dbpr, i32 %w, i32 %h, i32 %dstalpha, i32 %mask) {
+       %tmp633 = shufflevector <8 x i16> zeroinitializer, <8 x i16> undef, <8 x i32> < i32 4, i32 4, i32 5, i32 5, i32 6, i32 6, i32 7, i32 7 >
+       %tmp715 = mul <8 x i16> zeroinitializer, %tmp633
+       %tmp776 = bitcast <8 x i16> %tmp715 to <4 x i32>
+       %tmp777 = add <4 x i32> %tmp776, shufflevector (<4 x i32> < i32 65537, i32 0, i32 0, i32 0 >, <4 x i32> < i32 65537, i32 0, i32 0, i32 0 >, <4 x i32> zeroinitializer)
+       %tmp805 = add <4 x i32> %tmp777, zeroinitializer
+       %tmp832 = bitcast <4 x i32> %tmp805 to <8 x i16>
+       %tmp838 = tail call <8 x i16> @llvm.x86.sse2.psrl.w( <8 x i16> %tmp832, <4 x i32> < i32 8, i32 undef, i32 undef, i32 undef > )
+       %tmp1020 = tail call <8 x i16> @llvm.x86.sse2.packuswb.128( <8 x i16> zeroinitializer, <8 x i16> %tmp838 )
+       %tmp1030 = bitcast <8 x i16> %tmp1020 to <4 x i32>
+       %tmp1033 = add <4 x i32> zeroinitializer, %tmp1030
+       %tmp1048 = bitcast <4 x i32> %tmp1033 to <2 x i64>
+       %tmp1049 = or <2 x i64> %tmp1048, zeroinitializer
+       store <2 x i64> %tmp1049, <2 x i64>* null
+       ret void
+}