JezK
Edit File: regress-1278.js
// 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. // See: http://code.google.com/p/v8/issues/detail?id=1278 // Test that that handling of 0/-0 is correct for binary operations when the // TypeRecordingBinaryOpStub transitions through different states. function add(x, y) { return x + y; } function sub(x, y) { return x - y; } function mul(x, y) { return x * y; } function div(x, y) { return x / y; } for (var i = 0; i < 10; i++) { assertEquals(0, add(0, 0)); assertEquals(0, add(0, -0)); assertEquals(0, add(-0, 0)); assertEquals(-0, add(-0, -0)); assertEquals(0, sub(0, 0)); assertEquals(0, sub(0, -0)); assertEquals(-0, sub(-0, 0)); assertEquals(0, sub(-0, -0)); assertEquals(0, mul(0, 0)); assertEquals(-0, mul(0, -0)); assertEquals(-0, mul(-0, 0)); assertEquals(0, mul(-0, -0)); assertEquals(0, div(0, 1)); assertEquals(-0, div(0, -1)); assertEquals(-0, div(-0, 1)); assertEquals(0, div(-0, -1)); }