v8/test/mjsunit/regress/regress-2593.js
ulan@chromium.org eee5884f8d Add extra flag for load-ic stubs in code cache.
This allows to distinguish between stubs compiled for the current object from
stubs compiled for objects that have the current object as a prototype.

BUG=v8:2593
R=verwaest@chromium.org

Review URL: https://chromiumcodereview.appspot.com/13552003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14132 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-04-04 08:29:25 +00:00

62 lines
2.0 KiB
JavaScript

// 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:
//
// * 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.
// Flags: --expose_gc
p1 = { };
p2 = { };
p3 = { x : 1 };
p2.__proto__ = p3
p1.__proto__ = p2
// Normalize p1.
p1.z = 1
delete p1.z
// Make sure all objects are in old space.
for (var i = 0; i < 10; i++) gc();
function f2() {
p2.x;
}
function f1() {
return p1.x;
}
// Create load stub in p2.
for (var i = 0; i < 10; i++) f2();
// Create load stub in p2 for p1.
for (var i = 0; i < 10; i++) f1();
assertEquals(1, f1());
p2.x = 2;
assertEquals(2, f1());