1 files changed, 4 insertions, 2 deletions
diff --git a/deps/v8/test/mjsunit/regress/regress-crbug-879560.js b/deps/v8/test/mjsunit/regress/regress-crbug-879560.js
index a17deadfcd..da5c6d9ec0 100644
--- a/deps/v8/test/mjsunit/regress/regress-crbug-879560.js
+++ b/deps/v8/test/mjsunit/regress/regress-crbug-879560.js
@@ -7,8 +7,10 @@
 function foo() {
   var x = 1;
   x = undefined;
-  while (x--) ;
-}
+  while (x--)
+    ;
+};
+%PrepareFunctionForOptimization(foo);
 foo();
 %OptimizeFunctionOnNextCall(foo);
 foo();