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e9a5a7f918
* [javascriptcore-test262-automation] changes from git@github.com:WebKit/webkit.git at sha 949e26452cfa153a7f4afe593da97e2fe9e1b706 on Tue Jul 03 2018 14:35:15 GMT-0400 (Eastern Daylight Time)
47 lines
2.1 KiB
JavaScript
47 lines
2.1 KiB
JavaScript
/*
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* Copyright (C) 2015 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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// Regression test for https://bugs.webkit.org/show_bug.cgi?id=144152
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// The bug in 144152 needs 3 conditions to manifest:
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// 1. The branch test value in the inlined function is of useKind ObjectOrOtherUse.
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// 2. The branch test value is proven to be a known useKind.
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// 3. The masqueradesAsUndefined watchpoint is no longer valid.
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// With the bug fixed, this test should not crash on debug builds.
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function inlinedFunction(x) {
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if (x) // Conditional branch that will assert on a debug build if the bug is present.
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new Object;
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}
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function foo(x) {
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if (x) // Testing x before calling the inlined function sets up condition 2.
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inlinedFunction(x);
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}
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makeMasquerader(); // Invalidates the masqueradesAsUndefined watchpoint for condition 3.
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for (var i = 0; i < 10000; i++)
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foo({}); // Pass an object argument to set up condition 1.
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