1 files changed, 2 insertions, 1 deletions
diff --git a/lib/AST/ExprConstant.cpp b/lib/AST/ExprConstant.cpp
index 13831dc1f5..d91ae6a3e7 100644
--- a/lib/AST/ExprConstant.cpp
+++ b/lib/AST/ExprConstant.cpp
@@ -970,8 +970,9 @@ bool IntExprEvaluator::VisitCallExpr(const CallExpr *E) {
           }
         }
 
+    // TODO: Perhaps we should let LLVM lower this?
     if (E->getArg(0)->HasSideEffects(Info.Ctx)) {
-      if (E->getArg(1)->EvaluateAsInt(Info.Ctx).getZExtValue() < 2)
+      if (E->getArg(1)->EvaluateAsInt(Info.Ctx).getZExtValue() == 0)
         return Success(-1ULL, E);
       return Success(0, E);
     }