v8/test/mjsunit/regress/regress-crbug-747979.js
Igor Sheludko c558369af2 [runtime] Don't create "class" field types for arrays' fields.
... when reconfiguring const fields to mutable fields.

Bug: chromium:747979, chromium:738763, chromium:745844
Change-Id: Ibfac1b875a1da8234966ac10658260f1cc718fe5
Reviewed-on: https://chromium-review.googlesource.com/583647
Reviewed-by: Jakob Kummerow <jkummerow@chromium.org>
Commit-Queue: Igor Sheludko <ishell@chromium.org>
Cr-Commit-Position: refs/heads/master@{#46854}
2017-07-25 06:54:46 +00:00

33 lines
504 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 f(a) {
%HeapObjectVerify(a);
a[1] = 0;
%HeapObjectVerify(a);
}
function foo() {}
var arr1 = [0];
var arr2 = [0];
var arr3 = [0];
arr1.f = foo;
arr1[0] = 4.2;
arr2.f = foo;
arr3.f = foo;
arr3[0] = 4.2;
arr3.f = f;
f(arr1);
f(arr2);
f(arr3);
%OptimizeFunctionOnNextCall(f);
f(arr3);