CodeGen support for copied BlockDeclRefExprs.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@65487 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGExprConstant.cpp b/lib/CodeGen/CGExprConstant.cpp
index 487b274..93bc53f 100644
--- a/lib/CodeGen/CGExprConstant.cpp
+++ b/lib/CodeGen/CGExprConstant.cpp
@@ -452,7 +452,7 @@
     case Expr::BlockExprClass: {
       BlockExpr *B = cast<BlockExpr>(E);
       if (!B->hasBlockDeclRefExprs())
-        return CGF->BuildBlockLiteralTmp(B);
+        return cast<llvm::Constant>(CGF->BuildBlockLiteralTmp(B));
     }
     }