v8/test/mjsunit/regress/regress-crbug-280333.js
jkummerow@chromium.org 2c9ac9c7e1 Always visit branches during HGraph building
even if constant values indicate that they are unreachable.

BUG=chromium:280333
R=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/23623009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@16431 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2013-08-29 14:55:45 +00:00

48 lines
2.0 KiB
JavaScript

// Copyright 2013 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Flags: --allow-natives-syntax
function funky() { return false; }
var global;
function foo(x, fun) {
var a = x + 1;
var b = x + 2; // Need another Simulate to fold the first one into.
global = true; // Need a side effect to deopt to.
if (fun()) {
return a;
}
return 0;
}
assertEquals(0, foo(1, funky));
assertEquals(0, foo(1, funky));
%OptimizeFunctionOnNextCall(foo);
assertEquals(0, foo(1, funky));
assertEquals(2, foo(1, function() { return true; }));