66 lines
2.3 KiB
JavaScript
66 lines
2.3 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 an Int32ToDouble placed on a SetLocal does a forward exit, and works right even when the relevant variable is actually predicted numeric."
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);
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var counter = 0;
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function checkpoint(text) {
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debug("Checkpoint: " + text);
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counter++;
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}
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function func1() {
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checkpoint("a");
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a = Date.now() + Date.now() + Date.now() + Date.now() + Date.now() + Date.now();
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checkpoint("b");
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if (counter < 1100)
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return 0;
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}
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function func2() {
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checkpoint("c");
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return Date.now() + Date.now() + Date.now() + Date.now() + Date.now() + Date.now();
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}
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function func3(s) {
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checkpoint("1");
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s = func1(); // The bug is that this function will be called twice, if our Int32ToDouble hoisting does a backward speculation.
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checkpoint("2");
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s = func2();
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checkpoint("3");
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return s;
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}
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function test() {
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return func3(1);
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}
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for (var i=0; i < 200; i++) {
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test();
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}
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shouldBe("counter", "1200");
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