build/pgo/js-input/access-binary-trees.html

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/build/pgo/js-input/access-binary-trees.html	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,100 @@
     1.4 +<!DOCTYPE html>
     1.5 +<head>
     1.6 +<!--
     1.7 + Copyright (C) 2007 Apple Inc.  All rights reserved.
     1.8 +
     1.9 + Redistribution and use in source and binary forms, with or without
    1.10 + modification, are permitted provided that the following conditions
    1.11 + are met:
    1.12 + 1. Redistributions of source code must retain the above copyright
    1.13 +    notice, this list of conditions and the following disclaimer.
    1.14 + 2. Redistributions in binary form must reproduce the above copyright
    1.15 +    notice, this list of conditions and the following disclaimer in the
    1.16 +    documentation and/or other materials provided with the distribution.
    1.17 +
    1.18 + THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
    1.19 + EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
    1.20 + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
    1.21 + PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
    1.22 + CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
    1.23 + EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
    1.24 + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
    1.25 + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
    1.26 + OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    1.27 + (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    1.28 + OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
    1.29 +-->
    1.30 +
    1.31 +<title>SunSpider access-binary-trees</title>
    1.32 +
    1.33 +</head>
    1.34 +
    1.35 +<body>
    1.36 +<h3>access-binary-trees</h3>
    1.37 +<div id="console">
    1.38 +</div>
    1.39 +
    1.40 +<script>
    1.41 +
    1.42 +var _sunSpiderStartDate = new Date();
    1.43 +
    1.44 +/* The Great Computer Language Shootout
    1.45 +   http://shootout.alioth.debian.org/
    1.46 +   contributed by Isaac Gouy */
    1.47 +
    1.48 +function TreeNode(left,right,item){
    1.49 +   this.left = left;
    1.50 +   this.right = right;
    1.51 +   this.item = item;
    1.52 +}
    1.53 +
    1.54 +TreeNode.prototype.itemCheck = function(){
    1.55 +   if (this.left==null) return this.item;
    1.56 +   else return this.item + this.left.itemCheck() - this.right.itemCheck();
    1.57 +}
    1.58 +
    1.59 +function bottomUpTree(item,depth){
    1.60 +   if (depth>0){
    1.61 +      return new TreeNode(
    1.62 +          bottomUpTree(2*item-1, depth-1)
    1.63 +         ,bottomUpTree(2*item, depth-1)
    1.64 +         ,item
    1.65 +      );
    1.66 +   }
    1.67 +   else {
    1.68 +      return new TreeNode(null,null,item);
    1.69 +   }
    1.70 +}
    1.71 +
    1.72 +var ret;
    1.73 +
    1.74 +for ( var n = 4; n <= 7; n += 1 ) {
    1.75 +    var minDepth = 4;
    1.76 +    var maxDepth = Math.max(minDepth + 2, n);
    1.77 +    var stretchDepth = maxDepth + 1;
    1.78 +    
    1.79 +    var check = bottomUpTree(0,stretchDepth).itemCheck();
    1.80 +    
    1.81 +    var longLivedTree = bottomUpTree(0,maxDepth);
    1.82 +    for (var depth=minDepth; depth<=maxDepth; depth+=2){
    1.83 +        var iterations = 1 << (maxDepth - depth + minDepth);
    1.84 +
    1.85 +        check = 0;
    1.86 +        for (var i=1; i<=iterations; i++){
    1.87 +            check += bottomUpTree(i,depth).itemCheck();
    1.88 +            check += bottomUpTree(-i,depth).itemCheck();
    1.89 +        }
    1.90 +    }
    1.91 +
    1.92 +    ret = longLivedTree.itemCheck();
    1.93 +}
    1.94 +
    1.95 +
    1.96 +var _sunSpiderInterval = new Date() - _sunSpiderStartDate;
    1.97 +
    1.98 +document.getElementById("console").innerHTML = _sunSpiderInterval;
    1.99 +</script>
   1.100 +
   1.101 +
   1.102 +</body>
   1.103 +</html>

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