Support OpenCL 1.1 odd-length vector component accessors.

For hi/odd of an odd-length vector, the last component is undefined.  Since
we shuffle with an undef vector, no CodeGen needs to change to support this.

llvm-svn: 91437

1 files changed, 5 insertions, 2 deletions

diff --git a/clang/test/Sema/ext_vector_components.c b/clang/test/Sema/ext_vector_components.c
index 48903024d3c..8e42582cc72 100644
--- a/clang/test/Sema/ext_vector_components.c
+++ b/clang/test/Sema/ext_vector_components.c
@@ -26,8 +26,6 @@ static void test() {
     f = vec2.x; // legal, shorten
     f = vec4.xy.x; // legal, shorten
 
-    vec2 = vec3.hi; // expected-error {{vector component access invalid for odd-sized type 'float3'}}
-    
     vec4_2.xyzx = vec4.xyzw; // expected-error {{vector is not assignable (contains duplicate components)}}
     vec4_2.xyzz = vec4.xyzw; // expected-error {{vector is not assignable (contains duplicate components)}}
     vec4_2.xyyw = vec4.xyzw; // expected-error {{vector is not assignable (contains duplicate components)}}
@@ -42,3 +40,8 @@ static void test() {
   
     vec4p->yz = vec4p->xy;
 }
+
+float2 lo(float3 x) { return x.lo; }
+float2 hi(float3 x) { return x.hi; }
+float2 ev(float3 x) { return x.even; }
+float2 od(float3 x) { return x.odd; }