v8/test/mjsunit/compiler/regress-escape-analysis-indirect.js
mstarzinger 437a33efd2 [turbofan] Fix indirect escapes in escape analysis.
This makes sure we only replace load operations for fields on virtual
objects. Even though data flow information for non-virtual (escaping)
allocations is available, it might be inaccurate in certain situations
where object state hasn't been cleared.

R=jarin@chromium.org
TEST=mjsunit/compiler/regress-escape-analysis-indirect

Review-Url: https://codereview.chromium.org/2369953002
Cr-Commit-Position: refs/heads/master@{#39776}
2016-09-27 14:53:17 +00:00

18 lines
503 B
JavaScript

// Copyright 2016 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 --turbo-escape
function f(apply) {
var value = 23;
apply(function bogeyman() { value = 42 });
return value;
}
function apply(fun) { fun() }
assertEquals(42, f(apply));
assertEquals(42, f(apply));
%NeverOptimizeFunction(apply);
%OptimizeFunctionOnNextCall(f);
assertEquals(42, f(apply));