Add diagnostic for .{lo,hi,e,o} on odd-sized extended vectors.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@56859 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaExpr.cpp b/lib/Sema/SemaExpr.cpp
index b19da68..07428fd 100644
--- a/lib/Sema/SemaExpr.cpp
+++ b/lib/Sema/SemaExpr.cpp
@@ -846,6 +846,8 @@
   // is an even number, since all special component names return exactly half
   // the elements.
   if (SpecialComponent && (vecType->getNumElements() & 1U)) {
+    Diag(OpLoc, diag::err_ext_vector_component_requires_even, 
+         baseType.getAsString(), SourceRange(CompLoc));
     return QualType();
   }