Make CodeGen produce an error if we come across a non-constant initializer list that involves the GNU array-range designator extension

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63327 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGExprScalar.cpp b/lib/CodeGen/CGExprScalar.cpp
index f855e23..1d389b6 100644
--- a/lib/CodeGen/CGExprScalar.cpp
+++ b/lib/CodeGen/CGExprScalar.cpp
@@ -169,6 +169,10 @@
   Value *VisitInitListExpr(InitListExpr *E) {
     unsigned NumInitElements = E->getNumInits();
     
+    if (E->hadArrayRangeDesignator()) {
+      CGF.ErrorUnsupported(E, "GNU array range designator extension");
+    }
+
     const llvm::VectorType *VType = 
       dyn_cast<llvm::VectorType>(ConvertType(E->getType()));