47d8af7616
Also treat holey NaN coming from external float/double arrays correctly BUG=2596 Review URL: https://codereview.chromium.org/12918028 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@14094 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
57 lines
2.2 KiB
JavaScript
57 lines
2.2 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
|
|
|
|
var bytes = new Uint8Array([
|
|
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x7f]); // kHoleNaN
|
|
var doubles = new Float64Array(bytes.buffer);
|
|
assertTrue(isNaN(doubles[0]));
|
|
|
|
var prototype = [2.5, 2.5];
|
|
var array = [3.5, 3.5];
|
|
array.__proto__ = prototype;
|
|
assertTrue(%HasFastDoubleElements(array));
|
|
|
|
function boom(index) {
|
|
array[index] = doubles[0];
|
|
return array[index];
|
|
}
|
|
|
|
assertTrue(isNaN(boom(0)));
|
|
assertTrue(isNaN(boom(0)));
|
|
assertTrue(isNaN(boom(0)));
|
|
|
|
// Test hydrogen
|
|
%OptimizeFunctionOnNextCall(boom);
|
|
assertTrue(isNaN(boom(0)));
|
|
assertTrue(isNaN(boom(0)));
|
|
assertTrue(isNaN(boom(0)));
|
|
|
|
|
|
|