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));
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