/usr/share/doc/mlton/guide/Flatten is in mlton-doc 20100608-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<meta name="robots" content="index,nofollow">
<title>Flatten - MLton Standard ML Compiler (SML Compiler)</title>
<link rel="stylesheet" type="text/css" charset="iso-8859-1" media="all" href="common.css">
<link rel="stylesheet" type="text/css" charset="iso-8859-1" media="screen" href="screen.css">
<link rel="stylesheet" type="text/css" charset="iso-8859-1" media="print" href="print.css">
<link rel="Start" href="Home">
</head>
<body lang="en" dir="ltr">
<script src="http://www.google-analytics.com/urchin.js" type="text/javascript">
</script>
<script type="text/javascript">
_uacct = "UA-833377-1";
urchinTracker();
</script>
<table bgcolor = lightblue cellspacing = 0 style = "border: 0px;" width = 100%>
<tr>
<td style = "
border: 0px;
color: darkblue;
font-size: 150%;
text-align: left;">
<a class = mltona href="Home">MLton MLTONWIKIVERSION</a>
<td style = "
border: 0px;
font-size: 150%;
text-align: center;
width: 50%;">
Flatten
<td style = "
border: 0px;
text-align: right;">
<table cellspacing = 0 style = "border: 0px">
<tr style = "vertical-align: middle;">
</table>
<tr style = "background-color: white;">
<td colspan = 3
style = "
border: 0px;
font-size:70%;
text-align: right;">
<a href = "Home">Home</a>
<a href = "TitleIndex">Index</a>
</table>
<div id="content" lang="en" dir="ltr">
Flatten is an optimization pass for the <a href="SSA">SSA</a> <a href="IntermediateLanguage">IntermediateLanguage</a>, invoked from <a href="SSASimplify">SSASimplify</a>. <h2 id="head-55f8ebc805e65b5b71ddafdae390e3be2bcd69af">Description</h2>
<p>
This pass flattens arguments to <a href="SSA">SSA</a> constructors, blocks, and functions.
</p>
<p>
If a tuple is explicitly available at all uses of a function (resp. block), then:
</p>
<ul>
<li>
<p>
The formals and call sites are changed so that the components of the tuple are passed.
</p>
</li>
<li class="gap">
<p>
The tuple is reconstructed at the beginning of the body of the function (resp. block).
</p>
</li>
</ul>
<p>
Similarly, if a tuple is explicitly available at all uses of a constructor, then:
</p>
<ul>
<li>
<p>
The constructor argument datatype is changed to flatten the tuple type.
</p>
</li>
<li class="gap">
<p>
The tuple is passed flat at each <tt>ConApp</tt>.
</p>
</li>
<li class="gap">
<p>
The tuple is reconstructed at each <tt>Case</tt> transfer target.
</p>
</li>
</ul>
<h2 id="head-8781d615fd77be9578225c40ac67b9471394cced">Implementation</h2>
<a href = "http://mlton.org/cgi-bin/viewsvn.cgi/mlton/tags/on-MLTONWIKIVERSION-release/mlton/ssa/flatten.sig?view=markup"><img src="moin-www.png" alt="[WWW]" height="11" width="11">flatten.sig</a> <a href = "http://mlton.org/cgi-bin/viewsvn.cgi/mlton/tags/on-MLTONWIKIVERSION-release/mlton/ssa/flatten.fun?view=markup"><img src="moin-www.png" alt="[WWW]" height="11" width="11">flatten.fun</a> <h2 id="head-35ec00231a68203708e39f0e2cc10b50c6bf62de">Details and Notes</h2>
</div>
<p>
<hr>
Last edited on 2006-11-02 17:52:58 by <span title="76.16.241.4"><a href="MatthewFluet">MatthewFluet</a></span>.
</body></html>
|