[Isolates] Merge crankshaft (r5922 from bleeding_edge).

test/mjsunit/compiler/regress-funcaller.js

+// Copyright 2010 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:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Test function.caller.
+function A() {}
+
+function fun(x) {
+  if (x == 0) return fun.caller;
+  if (x == 1) return gee.caller;
+  return 42;
+}
+function gee(x) { return this.f(x); }
+
+A.prototype.f = fun;
+A.prototype.g = gee;
+
+var o = new A();
+
+for (var i=0; i<5000000; i++) {
+  o.g(i);
+}
+assertEquals(gee, o.g(0));
+assertEquals(null, o.g(1));
+
+// Test when called from another function.
+function hej(x) {
+  if (x == 0) return o.g(x);
+  if (x == 1) return o.g(x);
+  return o.g(x);
+}
+
+for (var j=0; j<5000000; j++) {
+  hej(j);
+}
+assertEquals(gee, hej(0));
+assertEquals(hej, hej(1));
+
+// Test when called from eval.
+function from_eval(x) {
+  if (x == 0) return eval("o.g(x);");
+  if (x == 1) return eval("o.g(x);");
+  return o.g(x);
+}
+
+for (var j=0; j<5000000; j++) {
+  from_eval(j);
+}
+assertEquals(gee, from_eval(0));
+assertEquals(from_eval, from_eval(1));