Add check so we don't try to perform an impossible transformation. Fixes issue from PR11319.
llvm-svn: 144216
diff --git a/llvm/test/CodeGen/ARM/2011-11-09-BitcastVectorDouble.ll b/llvm/test/CodeGen/ARM/2011-11-09-BitcastVectorDouble.ll
new file mode 100644
index 0000000..2ab6a4f
--- /dev/null
+++ b/llvm/test/CodeGen/ARM/2011-11-09-BitcastVectorDouble.ll
@@ -0,0 +1,15 @@
+; RUN: llc < %s -march=arm -mattr=+neon | FileCheck %s
+; PR11319
+
+@src1_v2i16 = global <2 x i16> <i16 0, i16 1>
+@res_v2i16 = global <2 x i16> <i16 0, i16 0>
+
+declare <2 x i16> @foo_v2i16(<2 x i16>) nounwind
+
+define void @test_neon_call_return_v2i16() {
+; CHECK: test_neon_call_return_v2i16:
+ %1 = load <2 x i16>* @src1_v2i16
+ %2 = call <2 x i16> @foo_v2i16(<2 x i16> %1) nounwind
+ store <2 x i16> %2, <2 x i16>* @res_v2i16
+ ret void
+}