Merged r13386 into 3.15 branch.

test/mjsunit/regress/regress-2489.js

Index: test/mjsunit/regress/regress-2489.js
diff --git a/test/mjsunit/regress/regress-sqrt.js b/test/mjsunit/regress/regress-2489.js
similarity index 83%
copy from test/mjsunit/regress/regress-sqrt.js
copy to test/mjsunit/regress/regress-2489.js
index f2a7e55242cbcdfb281f8e05c465000c98b5a8bc..882c4f794a88e24d1d64e86a466b27c39f51e625 100644
--- a/test/mjsunit/regress/regress-sqrt.js
+++ b/test/mjsunit/regress/regress-2489.js
@@ -1,4 +1,4 @@
-// Copyright 2012 the V8 project authors. All rights reserved.
+// Copyright 2013 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
@@ -27,21 +27,24 @@
 
 // Flags: --allow-natives-syntax
 
-// Check that Math.sqrt returns the same value regardless of being
-// optimized or not.
+"use strict";
 
-function f(x) {
-  return Math.sqrt(x);
+function f(a, b) {
+  return g("c", "d");
 }
 
-var x = 7.0506280066499245e-233;
+function g(a, b) {
+  g.constructor.apply(this, arguments);
+}
 
-var a = f(x);
+g.constructor = function(a, b) {
+  assertEquals("c", a);
+  assertEquals("d", b);
+}
 
-f(0.1);
-f(0.2);
+f("a", "b");
+f("a", "b");
 %OptimizeFunctionOnNextCall(f);
-
-var b = f(x);
-
-assertEquals(a, b);
+f("a", "b");
+g.x = "deopt";
+f("a", "b");