v8/test/mjsunit/regress/regress-708247.js
jgruber ae45935646 [regexp] Ensure there are no shape changes on the fast path
BUG=v8:5437,chromium:708247

Review-Url: https://codereview.chromium.org/2797993002
Cr-Commit-Position: refs/heads/master@{#44428}
2017-04-06 08:12:56 +00:00

27 lines
611 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: --predictable
const str = '2016-01-02';
function t() {
var re;
function toDictMode() {
for (var i = 0; i < 100; i++) { // Loop is required.
re.x = 42;
delete re.x;
}
return 0;
}
re = /-/g; // Needs to be global to trigger lastIndex accesses.
re.lastIndex = { valueOf : toDictMode };
return re.exec(str);
}
for (var q = 0; q < 10000; q++) {
t(); // Needs repetitions to trigger a crash.
}