v8/test/mjsunit/regress/regress-crbug-685050.js
bmeurer 64eae6eff2 [turbofan] Remove over-restrictive DCHECKs.
The KeyedStoreMode that we get out of the FeedbackNexus doesn't
necessarily need to apply when we have "static knowledge" about
the receiver, i.e. when the receiver is a known JSTypedArray, but
the KEYED_STORE_IC has seen only JSArray instances so far. The
DCHECK was too restrictive in this case, since we can just ignore
the KEYED_STORE_IC mode (like we ignore the maps).

BUG=chromium:685050
R=ishell@chromium.org

Review-Url: https://codereview.chromium.org/2668643002
Cr-Commit-Position: refs/heads/master@{#42810}
2017-01-31 09:00:55 +00:00

20 lines
378 B
JavaScript

// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --allow-natives-syntax
function bar(a) {
a[0] = 0;
a[1] = 0;
}
var a = new Int32Array(2);
bar([1, 2, 3]);
function foo() {
bar([1, 2, 3]);
bar(a);
}
%OptimizeFunctionOnNextCall(foo);
foo();