48 lines
2.1 KiB
JavaScript
48 lines
2.1 KiB
JavaScript
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// Copyright 2013 the V8 project authors. All rights reserved.
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// Copyright (C) 2005, 2006, 2007, 2008, 2009 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. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY THEORY 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 OF THIS
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// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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description(
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"Tests that DFG silent spill and fill of WeakJSConstants does not result in nonsense."
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);
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function foo(a, b, c, d)
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{
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a.f = 42; // WeakJSConstants corresponding to the o.f transition get created here.
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var x = !d; // Silent spilling and filling happens here.
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b.f = x; // The WeakJSConstants get reused here.
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var y = !d; // Silent spilling and filling happens here.
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c.f = y; // The WeakJSConstants get reused here.
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}
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var Empty = "";
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for (var i = 0; i < 1000; ++i) {
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var o1 = new Object();
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var o2 = new Object();
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var o3 = new Object();
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eval(Empty + "foo(o1, o2, o3, \"stuff\")");
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shouldBe("o1.f", "42");
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shouldBe("o2.f", "false");
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shouldBe("o3.f", "false");
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}
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