90b3370374
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5922 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
56 lines
2.4 KiB
JavaScript
56 lines
2.4 KiB
JavaScript
// Copyright 2010 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.
|
|
|
|
// Test constant folding of smi operations that overflow a 32-bit int
|
|
// See http://code.google.com/p/v8/issues/detail?id=580
|
|
|
|
function num_ops() {
|
|
var x;
|
|
var tmp = 0;
|
|
x = (tmp = 1578221999, tmp)+(tmp = 572285336, tmp);
|
|
assertEquals(2150507335, x, "++");
|
|
x = 1578221999 + 572285336;
|
|
assertEquals(2150507335, x);
|
|
|
|
x = (tmp = -1500000000, tmp)+(tmp = -2000000000, tmp);
|
|
assertEquals(-3500000000, x, "+-");
|
|
x = -1500000000 + -2000000000;
|
|
assertEquals(-3500000000, x);
|
|
|
|
x = (tmp = 1578221999, tmp)-(tmp = -572285336, tmp);
|
|
assertEquals(2150507335, x, "--");
|
|
x = 1578221999 - -572285336;
|
|
assertEquals(2150507335, x);
|
|
|
|
x = (tmp = -1500000000, tmp)-(tmp = 2000000000, tmp);
|
|
assertEquals(-3500000000, x, "-+");
|
|
x = -1500000000 - 2000000000;
|
|
assertEquals(-3500000000, x);
|
|
}
|
|
|
|
num_ops();
|