test262/implementation-contributed/v8/mjsunit/regress/regress-ensure-initial-map.js
test262-automation 7298a38552 [v8-test262-automation] Updated curation log with latest revision sha's from export and changed files.
sourceRevisionAtLastExport: 33f2fb0e53d135f0ee17cfccd9d993eb2a6f47de targetRevisionAtLastExport: 31340cbd9add103f586d501b0c3354b7b182abc0
2018-09-14 12:32:18 -04:00

23 lines
459 B
JavaScript

// Copyright 2015 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
var x = Object.getOwnPropertyDescriptor({get x() {}}, "x").get;
function f(o, b) {
if (b) {
return o instanceof x;
}
}
%OptimizeFunctionOnNextCall(f);
f();
function g() {
return new x();
}
%OptimizeFunctionOnNextCall(g);
assertThrows(()=>g());