Support checking and codegen of constant vector globals

llvm-svn: 46343
diff --git a/clang/test/Sema/vector-init.c b/clang/test/Sema/vector-init.c
new file mode 100644
index 0000000..5436cba
--- /dev/null
+++ b/clang/test/Sema/vector-init.c
@@ -0,0 +1,5 @@
+// RUN: clang %s -verify -fsyntax-only
+
+typedef __attribute__(( ocu_vector_type(4) ))  float float4;
+
+float4 foo = (float4){ 1.0, 2.0, 3.0, 4.0 };