Upload Kmake

deps/v8/test/mjsunit/regress/regress-crbug-648737.js

@@ -0,0 +1,26 @@
+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --allow-natives-syntax --turbo-escape
+
+function f(str) {
+  var s = "We turn {" + str + "} into a ConsString now";
+  return s.length;
+};
+%PrepareFunctionForOptimization(f);
+assertEquals(33, f('a'));
+assertEquals(33, f("b"));
+%OptimizeFunctionOnNextCall(f);
+assertEquals(33, f("c"));
+
+function g(str) {
+  var s = "We also try to materalize {" + str + "} when deopting";
+  %DeoptimizeNow();
+  return s.length;
+};
+%PrepareFunctionForOptimization(g);
+assertEquals(43, g('a'));
+assertEquals(43, g("b"));
+%OptimizeFunctionOnNextCall(g);
+assertEquals(43, g("c"));