483812d46c
As of crrev.com/2760213003, the CheckBounds operator passes a truncation that identfies zero and minus zero. However that was not reflected in the typing rule, and as such the type of CheckBounds(-0,length) was always Type::None. That confused the typed alias analysis in the LoadElimination and led to ignoring StoreElement nodes. BUG=chromium:708050 R=jarin@chromium.org Review-Url: https://codereview.chromium.org/2812013006 Cr-Commit-Position: refs/heads/master@{#44598}
18 lines
360 B
JavaScript
18 lines
360 B
JavaScript
// Copyright 2017 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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var v = [];
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function foo() {
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v[0] = 5;
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v[-0] = 27;
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return v[0];
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}
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assertEquals(27, foo());
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%OptimizeFunctionOnNextCall(foo);
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assertEquals(27, foo());
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