| /* |
| * Copyright (C) 2015 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. 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. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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. |
| */ |
| |
| // Regression test for https://bugs.webkit.org/show_bug.cgi?id=144152 |
| |
| // The bug in 144152 needs 3 conditions to manifest: |
| // 1. The branch test value in the inlined function is of useKind ObjectOrOtherUse. |
| // 2. The branch test value is proven to be a known useKind. |
| // 3. The masqueradesAsUndefined watchpoint is no longer valid. |
| // With the bug fixed, this test should not crash on debug builds. |
| |
| function inlinedFunction(x) { |
| if (x) // Conditional branch that will assert on a debug build if the bug is present. |
| new Object; |
| } |
| |
| function foo(x) { |
| if (x) // Testing x before calling the inlined function sets up condition 2. |
| inlinedFunction(x); |
| } |
| |
| makeMasquerader(); // Invalidates the masqueradesAsUndefined watchpoint for condition 3. |
| for (var i = 0; i < 10000; i++) |
| foo({}); // Pass an object argument to set up condition 1. |
