31a3cfbc10
BUG=v8:8801 Change-Id: I9d9d9824c6c9ad0176bbfd3723da1b578b17c256 Reviewed-on: https://chromium-review.googlesource.com/c/1495555 Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#60001}
40 lines
805 B
JavaScript
40 lines
805 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() {
|
|
this.x = 1;
|
|
}
|
|
|
|
var a = [];
|
|
|
|
// Create enough objects to trigger slack tracking.
|
|
for (let i = 0; i < 100; i++) {
|
|
new f();
|
|
}
|
|
|
|
function h() {
|
|
// Create a new object and add an out-of-object property 'y'.
|
|
var o = new f();
|
|
o.y = 1.5;
|
|
return o;
|
|
}
|
|
|
|
function g(o) {
|
|
// Add more properties so that we trigger extension of out-ot-object
|
|
// property store.
|
|
o.u = 1.1;
|
|
o.v = 1.2;
|
|
o.z = 1.3;
|
|
// Return a field from the out-of-object-property store.
|
|
return o.y;
|
|
}
|
|
|
|
%PrepareFunctionForOptimization(g);
|
|
g(h());
|
|
g(h());
|
|
%OptimizeFunctionOnNextCall(g);
|
|
assertEquals(1.5, g(h()));
|