blob: 381141d52317c22cf19547a3626280fa2cb1ba9b [file] [log] [blame]
Ben Murdochb8a8cc12014-11-26 15:28:44 +00001// Copyright 2013 the V8 project authors. All rights reserved.
Steve Block1e0659c2011-05-24 12:43:12 +01002// Redistribution and use in source and binary forms, with or without
3// modification, are permitted provided that the following conditions are
4// met:
5//
6// * Redistributions of source code must retain the above copyright
7// notice, this list of conditions and the following disclaimer.
8// * Redistributions in binary form must reproduce the above
9// copyright notice, this list of conditions and the following
10// disclaimer in the documentation and/or other materials provided
11// with the distribution.
12// * Neither the name of Google Inc. nor the names of its
13// contributors may be used to endorse or promote products derived
14// from this software without specific prior written permission.
15//
16// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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23// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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26// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27
Ben Murdoch3fb3ca82011-12-02 17:19:32 +000028// Flags: --allow-natives-syntax
Steve Block1e0659c2011-05-24 12:43:12 +010029
Ben Murdochb8a8cc12014-11-26 15:28:44 +000030// The below test function was generated from part of a WebKit layout
31// test library setup routine: fast/canvas/webgl/resources/pnglib.js
Ben Murdoch3fb3ca82011-12-02 17:19:32 +000032
Ben Murdochb8a8cc12014-11-26 15:28:44 +000033function test(crc32) {
34 for (var i = 0; i < 256; i++) {
35 var c = i;
36 for (var j = 0; j < 8; j++) {
37 if (c & 1) {
38 c = -306674912 ^ ((c >> 1) & 0x7fffffff);
39 } else {
40 c = (c >> 1) & 0x7fffffff;
41 }
42 }
43 crc32[i] = c;
44 }
Steve Block1e0659c2011-05-24 12:43:12 +010045}
Ben Murdoche0cee9b2011-05-25 10:26:03 +010046
Ben Murdochb8a8cc12014-11-26 15:28:44 +000047var a = [0.5];
48for (var i = 0; i < 256; ++i) a[i] = i;
49
50test([0.5]);
51test(a);
52%OptimizeFunctionOnNextCall(test);
53test(a);