Attempt to fix uninitialized value warning reported on cfe-commits.



git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@110418 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGExprScalar.cpp b/lib/CodeGen/CGExprScalar.cpp
index 08d340e..3939ec7 100644
--- a/lib/CodeGen/CGExprScalar.cpp
+++ b/lib/CodeGen/CGExprScalar.cpp
@@ -1327,8 +1327,7 @@
     }
         
     case OffsetOfExpr::OffsetOfNode::Identifier:
-      assert(0 && "Invalid offsetof");
-      break;
+      llvm_unreachable("dependent __builtin_offsetof");
         
     case OffsetOfExpr::OffsetOfNode::Base: {
       if (ON.getBase()->isVirtual()) {