1 files changed, 2 insertions, 2 deletions
diff --git a/lib/Sema/TreeTransform.h b/lib/Sema/TreeTransform.h
index 4908e883b8..58c690d49f 100644
--- a/lib/Sema/TreeTransform.h
+++ b/lib/Sema/TreeTransform.h
@@ -4984,8 +4984,8 @@ StmtResult
 TreeTransform<Derived>::TransformCaseStmt(CaseStmt *S) {
   ExprResult LHS, RHS;
   {
-    // The case value expressions are not potentially evaluated.
-    EnterExpressionEvaluationContext Unevaluated(SemaRef, Sema::Unevaluated);
+    EnterExpressionEvaluationContext Unevaluated(SemaRef,
+                                                 Sema::ConstantEvaluated);
 
     // Transform the left-hand case value.
     LHS = getDerived().TransformExpr(S->getLHS());