v8/test/mjsunit/compiler/regress-958420.js
Georg Neis 053393d9fd [turbofan] Fix two bugs in ReduceArrayIteratorPrototypeNext
- Add missing uses of MapInference::NoChange.
- Insert map checks even if inferred maps were reliable, because
  they were inferred for an earlier effect input.

Bug: chromium:958420, chromium:958350, v8:9197
Change-Id: Id7677b1fc6f1e09dc12ae178f1155e4245b4e3e6
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1593077
Auto-Submit: Georg Neis <neis@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Commit-Queue: Georg Neis <neis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61157}
2019-05-02 11:31:30 +00:00

19 lines
355 B
JavaScript

// Copyright 2019 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 a = [];
function foo() {
return a[Symbol.iterator]().next();
}
a.__proto__.push(5);
a.bla = {};
foo();
%OptimizeFunctionOnNextCall(foo);
foo();