| Index: chrome/test/data/sunspider/bitops-3bit-bits-in-byte.html
|
| ===================================================================
|
| --- chrome/test/data/sunspider/bitops-3bit-bits-in-byte.html (revision 0)
|
| +++ chrome/test/data/sunspider/bitops-3bit-bits-in-byte.html (revision 0)
|
| @@ -0,0 +1,82 @@
|
| +<!DOCTYPE html>
|
| +<head>
|
| +<!--
|
| + Copyright (C) 2007 Apple Inc. All rights reserved.
|
| +
|
| + Redistribution and use in source and binary forms, with or without
|
| + modification, are permitted provided that the following conditions
|
| + are met:
|
| + 1. Redistributions of source code must retain the above copyright
|
| + notice, this list of conditions and the following disclaimer.
|
| + 2. 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.
|
| +
|
| + THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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.
|
| +-->
|
| +
|
| +<title>SunSpider bitops-3bit-bits-in-byte</title>
|
| +<link rel="stylesheet" href="sunspider.css">
|
| +</head>
|
| +
|
| +<body>
|
| +<h3>bitops-3bit-bits-in-byte</h3>
|
| +<div id="console">
|
| +</div>
|
| +<script src="sunspider-record-result.js"></script>
|
| +<script>
|
| +
|
| +var _sunSpiderStartDate = new Date();
|
| +
|
| +// Copyright (c) 2004 by Arthur Langereis (arthur_ext at domain xfinitegames, tld com
|
| +
|
| +// 1 op = 6 ANDs, 3 SHRs, 3 SHLs, 4 assigns, 2 ADDs
|
| +// O(1)
|
| +function fast3bitlookup(b) {
|
| +var c, bi3b = 0xE994; // 0b1110 1001 1001 0100; // 3 2 2 1 2 1 1 0
|
| +c = 3 & (bi3b >> ((b << 1) & 14));
|
| +c += 3 & (bi3b >> ((b >> 2) & 14));
|
| +c += 3 & (bi3b >> ((b >> 5) & 6));
|
| +return c;
|
| +
|
| +/*
|
| +lir4,0xE994; 9 instructions, no memory access, minimal register dependence, 6 shifts, 2 adds, 1 inline assign
|
| +rlwinmr5,r3,1,28,30
|
| +rlwinmr6,r3,30,28,30
|
| +rlwinmr7,r3,27,29,30
|
| +rlwnmr8,r4,r5,30,31
|
| +rlwnmr9,r4,r6,30,31
|
| +rlwnmr10,r4,r7,30,31
|
| +addr3,r8,r9
|
| +addr3,r3,r10
|
| +*/
|
| +}
|
| +
|
| +
|
| +function TimeFunc(func) {
|
| +var x, y, t;
|
| +for(var x=0; x<500; x++)
|
| +for(var y=0; y<256; y++) func(y);
|
| +}
|
| +
|
| +TimeFunc(fast3bitlookup);
|
| +
|
| +
|
| +var _sunSpiderInterval = new Date() - _sunSpiderStartDate;
|
| +
|
| +record(_sunSpiderInterval);
|
| +</script>
|
| +
|
| +
|
| +</body>
|
| +</html>
|
|
|
| Property changes on: chrome\test\data\sunspider\bitops-3bit-bits-in-byte.html
|
| ___________________________________________________________________
|
| Added: svn:eol-style
|
| + LF
|
|
|
|
|
Chromium Code Reviews
Issue 42549:
Add a copy of SunSpider 0.9 for performance testing.... (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/