We currently assume that all prototype maps are stable, which is not guaranteed for certain keyed access patterns. So we explicitly disallow optimizing the element access there for now. BUG=chromium:557807, v8:4470 R=jarin@chromium.org LOG=n Review URL: https://codereview.chromium.org/1456973004 Cr-Commit-Position: refs/heads/master@{#32101}
12 lines
339 B
JavaScript
12 lines
339 B
JavaScript
// Copyright 2015 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
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function bar() { return { __proto__: this }; }
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function foo(a) { a[0] = 0.3; }
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foo(bar());
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%OptimizeFunctionOnNextCall(foo);
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foo(bar());
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