69590a370f
R=jkummerow@chromium.org Review URL: https://codereview.chromium.org/18068003 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15370 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
63 lines
2.2 KiB
JavaScript
63 lines
2.2 KiB
JavaScript
// Copyright 2013 the V8 project authors. All rights reserved.
|
|
// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions
|
|
// are met:
|
|
// 1. Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
// 2. 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.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
|
|
|
|
description(
|
|
"This test checks that n % 0 doesn't crash with a floating-point exception."
|
|
);
|
|
|
|
shouldBe("2 % 0", "NaN");
|
|
|
|
var n = 2;
|
|
shouldBe("n % 0", "NaN");
|
|
|
|
function f()
|
|
{
|
|
return 2 % 0;
|
|
}
|
|
|
|
shouldBe("f()", "NaN");
|
|
|
|
function g()
|
|
{
|
|
var n = 2;
|
|
return n % 0;
|
|
}
|
|
|
|
shouldBe("g()", "NaN");
|
|
|
|
// Test that reusing a floating point value after use in a modulus works correctly.
|
|
function nonSpeculativeModReuseInner(argument, o1, o2)
|
|
{
|
|
// The + operator on objects is a reliable way to avoid the speculative JIT path for now at least.
|
|
o1 + o2;
|
|
|
|
var knownDouble = argument - 0;
|
|
return knownDouble % 1 + knownDouble;
|
|
}
|
|
function nonSpeculativeModReuse(argument)
|
|
{
|
|
return nonSpeculativeModReuseInner(argument, {}, {});
|
|
}
|
|
|
|
shouldBe("nonSpeculativeModReuse(0.5)", "1");
|