v8/test/mjsunit/compiler/regress-762057.js
Jaroslav Sevcik 6e8c00f7df Introduce an Abort bytecode and turbofan operator.
The advantage of an explicit Abort that the interpreter and the compiler know
that aborting cannot continue or throw or deopt. As a result we generate less
code and we do not confuse the compiler if the environment is not set up for
throwing (as in the generator dispatch that fails validation in
crbug.com/762057).

Bug: chromium:762057
Change-Id: I3e88f78be32f31ac49b1845595255f802c405ed7
Reviewed-on: https://chromium-review.googlesource.com/657025
Commit-Queue: Jaroslav Sevcik <jarin@chromium.org>
Reviewed-by: Michael Starzinger <mstarzinger@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#47922}
2017-09-08 12:16:23 +00:00

21 lines
392 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* foo() {
yield;
new Set();
for (let x of []) {
for (let y of []) {
yield;
}
}
}
let gaga = foo();
gaga.next();
%OptimizeFunctionOnNextCall(foo);
gaga.next();