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<a href="./Home">MLton 20130715</a>
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<h1>SSA2Simplify</h1>
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<div class="paragraph"><p>The optimization passes for the <a href="SSA2">SSA2</a> <a href="IntermediateLanguage">IntermediateLanguage</a> are
collected and controlled by the <span class="monospaced">Simplify2</span> functor
(<a href="https://github.com/MLton/mlton/blob/master/mlton/ssa/simplify2.sig"><span class="monospaced">simplify2.sig</span></a>,
<a href="https://github.com/MLton/mlton/blob/master/mlton/ssa/simplify2.fun"><span class="monospaced">simplify2.fun</span></a>).</p></div>
<div class="paragraph"><p>The following optimization passes are implemented:</p></div>
<div class="ulist"><ul>
<li>
<p>
<a href="DeepFlatten">DeepFlatten</a>
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</li>
<li>
<p>
<a href="RefFlatten">RefFlatten</a>
</p>
</li>
<li>
<p>
<a href="RemoveUnused">RemoveUnused</a>
</p>
</li>
<li>
<p>
<a href="Zone">Zone</a>
</p>
</li>
</ul></div>
<div class="paragraph"><p>There are additional analysis and rewrite passes that augment many of the other optimization passes:</p></div>
<div class="ulist"><ul>
<li>
<p>
<a href="Restore">Restore</a>
</p>
</li>
<li>
<p>
<a href="Shrink">Shrink</a>
</p>
</li>
</ul></div>
<div class="paragraph"><p>The optimization passes can be controlled from the command-line by the options</p></div>
<div class="ulist"><ul>
<li>
<p>
<span class="monospaced">-diag-pass &lt;pass&gt;</span>&#8201;&#8212;&#8201;keep diagnostic info for pass
</p>
</li>
<li>
<p>
<span class="monospaced">-drop-pass &lt;pass&gt;</span>&#8201;&#8212;&#8201;omit optimization pass
</p>
</li>
<li>
<p>
<span class="monospaced">-keep-pass &lt;pass&gt;</span>&#8201;&#8212;&#8201;keep the results of pass
</p>
</li>
<li>
<p>
<span class="monospaced">-loop-passes &lt;n&gt;</span>&#8201;&#8212;&#8201;loop optimization passes
</p>
</li>
<li>
<p>
<span class="monospaced">-ssa2-passes &lt;passes&gt;</span>&#8201;&#8212;&#8201;ssa optimization passes
</p>
</li>
</ul></div>
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