testcase for vector element access stuff.

llvm-svn: 40783

clang/test/CodeGen/ocu-vector.c

@@ -0,0 +1,24 @@
+// RUN: clang -emit-llvm %s
+
+typedef __attribute__(( ocu_vector_type(4) )) float float4;
+//typedef __attribute__(( ocu_vector_type(3) )) float float3;
+typedef __attribute__(( ocu_vector_type(2) )) float float2;
+
+
+float4 test1(float4 V) {
+  return V.wzyx+V;
+}
+
+float2 vec2, vec2_2;
+float4 vec4, vec4_2;
+float f;
+
+static void test2() {
+    vec2 = vec4.rg;  // shorten
+    f = vec2.x;      // extract elt
+    vec4 = vec4.yyyy;  // splat
+    
+    vec2.x = f;      // insert one.
+    vec2.yx = vec2; // reverse
+}
+