67ea9e4b42
R=jkummerow@chromium.org, ulan@chromium.org Review URL: https://codereview.chromium.org/258793002 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@21091 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
88 lines
3.3 KiB
JavaScript
88 lines
3.3 KiB
JavaScript
// Copyright 2011 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: --max-new-space-size=256 --allow-natives-syntax
|
|
|
|
var test_id = 0;
|
|
|
|
function testFloor(expect, input) {
|
|
var test = new Function('n',
|
|
'"' + (test_id++) + '";return Math.floor(n)');
|
|
assertEquals(expect, test(input));
|
|
assertEquals(expect, test(input));
|
|
assertEquals(expect, test(input));
|
|
%OptimizeFunctionOnNextCall(test);
|
|
assertEquals(expect, test(input));
|
|
|
|
var test_double_output = new Function(
|
|
'n',
|
|
'"' + (test_id++) + '";return Math.floor(n) + -0.0');
|
|
assertEquals(expect, test_double_output(input));
|
|
assertEquals(expect, test_double_output(input));
|
|
assertEquals(expect, test_double_output(input));
|
|
%OptimizeFunctionOnNextCall(test_double_output);
|
|
assertEquals(expect, test_double_output(input));
|
|
}
|
|
|
|
function zero() {
|
|
var x = 0.5;
|
|
return (function() { return x - 0.5; })();
|
|
}
|
|
|
|
function test() {
|
|
// 2^52 is a precision boundary.
|
|
var two_52 = (1 << 30) * (1 << 22);
|
|
|
|
testFloor(two_52, two_52);
|
|
testFloor(two_52, two_52 + 0.1);
|
|
assertEquals(two_52, two_52 + 0.5);
|
|
testFloor(two_52, two_52 + 0.5);
|
|
assertEquals(two_52 + 1, two_52 + 0.7);
|
|
testFloor(two_52 + 1, two_52 + 0.7);
|
|
|
|
testFloor(two_52 - 1, two_52 - 1);
|
|
testFloor(two_52 - 1, two_52 - 1 + 0.1);
|
|
testFloor(two_52 - 1, two_52 - 1 + 0.5);
|
|
testFloor(two_52 - 1, two_52 - 1 + 0.7);
|
|
|
|
testFloor(-two_52, -two_52);
|
|
testFloor(-two_52, -two_52 + 0.1);
|
|
testFloor(-two_52, -two_52 + 0.5);
|
|
testFloor(-two_52, -two_52 + 0.7);
|
|
|
|
testFloor(-two_52 + 1, -two_52 + 1);
|
|
testFloor(-two_52 + 1, -two_52 + 1 + 0.1);
|
|
testFloor(-two_52 + 1, -two_52 + 1 + 0.5);
|
|
testFloor(-two_52 + 1, -two_52 + 1 + 0.7);
|
|
}
|
|
|
|
|
|
// Test in a loop to cover the custom IC and GC-related issues.
|
|
for (var i = 0; i < 100; i++) {
|
|
test();
|
|
}
|