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Add regression test for fix from r14732.

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R=verwaest@chromium.org
BUG=chromium:242502
TEST=mjsunit/regress/regress-crbug-242502

Review URL: https://codereview.chromium.org/15288008

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14734 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
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mstarzinger@chromium.org 2013-05-21 14:20:42 +00:00
parent 3947fefe40
commit db4a770c3f
1 changed files with 66 additions and 0 deletions
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test/mjsunit/regress/regress-crbug-242502.js Normal file
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// 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 --allow-natives-syntax
function f() {
return 23;
}
function call(o) {
return o['']();
}
function test() {
var o1 = %ToFastProperties(Object.create({ foo:1 }, { '': { value:f }}));
var o2 = %ToFastProperties(Object.create({ bar:1 }, { '': { value:f }}));
var o3 = %ToFastProperties(Object.create({ baz:1 }, { '': { value:f }}));
var o4 = %ToFastProperties(Object.create({ qux:1 }, { '': { value:f }}));
var o5 = %ToFastProperties(Object.create({ loo:1 }, { '': { value:f }}));
// Called twice on o1 to turn monomorphic.
assertEquals(23, call(o1));
assertEquals(23, call(o1));
// Called on four other objects to turn megamorphic.
assertEquals(23, call(o2));
assertEquals(23, call(o3));
assertEquals(23, call(o4));
assertEquals(23, call(o5));
return o1;
}
// Fill stub cache with entries.
test();
// Clear stub cache during GC.
gc();
// Turn IC megamorphic again.
var oboom = test();
// Optimize with previously cleared stub cache.
%OptimizeFunctionOnNextCall(call);
assertEquals(23, call(oboom));