v8/test/mjsunit/compiler/regress-780658.js
Tobias Tebbi 9e92289536 [turbofan] Escape analysis no longer introduces Dead nodes in unreachable code.
Bug: chromium:780658
Change-Id: Ie1252a4e4e8ae8621817ab8c058715dcc3cef7d9
Reviewed-on: https://chromium-review.googlesource.com/769507
Commit-Queue: Tobias Tebbi <tebbi@chromium.org>
Reviewed-by: Jaroslav Sevcik <jarin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#49377}
2017-11-15 11:16:01 +00:00

30 lines
598 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 --turbo-escape
function get1(l, b) {
return l[1];
}
function with_double(x) {
var o = {a: [x,x,x]};
o.a.some_property = 1;
return get1(o.a);
}
function with_tagged(x) {
var l = [{}, x,x];
return get1(l);
}
with_double(.5);
with_tagged({});
with_double(.6);
with_tagged(null);
with_double(.5);
with_tagged({});
%OptimizeFunctionOnNextCall(with_double);
with_double(.7);