7201bad99d
Conflicting type feedback on Load/StoreICs can lead to out-of-bounds field access, which is essentially dead code, but EscapeAnalysis was confused about those. For now, mark the objects as escaping in these cases, middle-term we want to deal better with this kind of compile- time known dead code. BUG=chromium:658185,v8:4586 R=jarin@chromium.org Review-Url: https://codereview.chromium.org/2459273002 Cr-Commit-Position: refs/heads/master@{#40662}
21 lines
413 B
JavaScript
21 lines
413 B
JavaScript
// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax --turbo-escape
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var t = 0;
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function foo() {
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var o = {x:1};
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var p = {y:2.5, x:0};
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o = [];
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for (var i = 0; i < 2; ++i) {
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t = o.x;
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o = p;
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}
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}
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foo();
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foo();
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%OptimizeFunctionOnNextCall(foo);
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foo();
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