v8/test/mjsunit/regress/regress-crbug-791245-1.js
Benedikt Meurer 3ef6e45ee3 [turbofan] Properly type the OrderedHashTableHealIndex builtin result.
This unblocks the checks in the SimplifiedLowering that whenever we
store something as TaggedSigned, the input type should at least be
Type::SignedSmall.

Bug: chromium:791245
Change-Id: Ice6e55c2c6584c0ff60c1e033ba755c8863af32a
Reviewed-on: https://chromium-review.googlesource.com/808104
Commit-Queue: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49856}
2017-12-05 09:51:15 +00:00

19 lines
398 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
const s = new Map;
function foo(s) {
const i = s[Symbol.iterator]();
i.next();
return i;
}
console.log(foo(s));
console.log(foo(s));
%OptimizeFunctionOnNextCall(foo);
console.log(foo(s));