1a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Copyright 2008 the V8 project authors. All rights reserved. 2a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Redistribution and use in source and binary forms, with or without 3a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// modification, are permitted provided that the following conditions are 4a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// met: 5a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// 6a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Redistributions of source code must retain the above copyright 7a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// notice, this list of conditions and the following disclaimer. 8a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Redistributions in binary form must reproduce the above 9a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// copyright notice, this list of conditions and the following 10a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// disclaimer in the documentation and/or other materials provided 11a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// with the distribution. 12a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// * Neither the name of Google Inc. nor the names of its 13a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// contributors may be used to endorse or promote products derived 14a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// from this software without specific prior written permission. 15a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// 16a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 28a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// Ensure that operations on small integers handle -0. 29a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 30a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvar zero = 0; 31a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvar one = 1; 32a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvar minus_one = -1; 33a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvar two = 2; 34a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvar four = 4; 35a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvar minus_two = -2; 36a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Blockvar minus_four = -4; 37a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 38a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// variable op variable 39a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 403ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(-Infinity, one / (-zero), "one / -0 I"); 41a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 423ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(-Infinity, one / (zero * minus_one), "one / -1"); 433ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(-Infinity, one / (minus_one * zero), "one / -0 II"); 443ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(Infinity, one / (zero * zero), "one / 0 I"); 453ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(1, one / (minus_one * minus_one), "one / 1"); 46a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 473ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(-Infinity, one / (zero / minus_one), "one / -0 III"); 483ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(Infinity, one / (zero / one), "one / 0 II"); 49a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 503ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(-Infinity, one / (minus_four % two), "foo1"); 513ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(-Infinity, one / (minus_four % minus_two), "foo2"); 523ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(Infinity, one / (four % two), "foo3"); 533ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(Infinity, one / (four % minus_two), "foo4"); 54a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 55a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// literal op variable 56a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 573ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(-Infinity, one / (0 * minus_one), "bar1"); 583ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(-Infinity, one / (-1 * zero), "bar2"); 593ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(Infinity, one / (0 * zero), "bar3"); 603ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(1, one / (-1 * minus_one), "bar4"); 61a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 623ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(-Infinity, one / (0 / minus_one), "baz1"); 633ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(Infinity, one / (0 / one), "baz2"); 64a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 653ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(-Infinity, one / (-4 % two), "baz3"); 663ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(-Infinity, one / (-4 % minus_two), "baz4"); 673ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(Infinity, one / (4 % two), "baz5"); 683ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(Infinity, one / (4 % minus_two), "baz6"); 69a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 70a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// variable op literal 71a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 723ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(-Infinity, one / (zero * -1), "fizz1"); 733ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(-Infinity, one / (minus_one * 0), "fizz2"); 743ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(Infinity, one / (zero * 0), "fizz3"); 753ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(1, one / (minus_one * -1), "fizz4"); 76a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 773ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(-Infinity, one / (zero / -1), "buzz1"); 783ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(Infinity, one / (zero / 1), "buzz2"); 79a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 803ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(-Infinity, one / (minus_four % 2), "buzz3"); 813ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(-Infinity, one / (minus_four % -2), "buzz4"); 823ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(Infinity, one / (four % 2), "buzz5"); 833ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(Infinity, one / (four % -2), "buzz6"); 84a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 85a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block// literal op literal 86a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 873ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(-Infinity, one / (-0), "fisk1"); 88a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 893ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(-Infinity, one / (0 * -1), "fisk2"); 903ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(-Infinity, one / (-1 * 0), "fisk3"); 913ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(Infinity, one / (0 * 0), "fisk4"); 923ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(1, one / (-1 * -1), "fisk5"); 93a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 943ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(-Infinity, one / (0 / -1), "hest1"); 953ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(Infinity, one / (0 / 1), "hest2"); 96a7e24c173cf37484693b9abb38e494fa7bd7baebSteve Block 973ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(-Infinity, one / (-4 % 2), "fiskhest1"); 983ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(-Infinity, one / (-4 % -2), "fiskhest2"); 993ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(Infinity, one / (4 % 2), "fiskhest3"); 1003ce2e2076e8e3e60cf1810eec160ea2d8557e9e7Steve BlockassertEquals(Infinity, one / (4 % -2), "fiskhest4"); 101f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch 102f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch 103f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch// This tests against a singleton -0.0 object being overwritten.gc 104f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdochx = 0; 105f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdochz = 3044; 106f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch 107f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdochfunction foo(x) { 108f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch var y = -x + z; 109f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch return -x; 110f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch} 111f87a203d89e1bbb6708282e0b64dbd13d59b723dBen Murdoch 11244f0eee88ff00398ff7f715fab053374d808c90dSteve BlockassertEquals(-0, foo(x)); 11344f0eee88ff00398ff7f715fab053374d808c90dSteve BlockassertEquals(-0, foo(x)); 114