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SSASimplify
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The optimization passes for the <a href="SSA">SSA</a> <a href="IntermediateLanguage">IntermediateLanguage</a> are collected and controlled by the <tt>Simplify</tt> functor (<a href = "http://mlton.org/cgi-bin/viewsvn.cgi/mlton/tags/on-MLTONWIKIVERSION-release/mlton/ssa/simplify.sig?view=markup"><img src="moin-www.png" alt="[WWW]" height="11" width="11">simplify.sig</a>,<a href = "http://mlton.org/cgi-bin/viewsvn.cgi/mlton/tags/on-MLTONWIKIVERSION-release/mlton/ssa/simplify.fun?view=markup"><img src="moin-www.png" alt="[WWW]" height="11" width="11">simplify.fun</a>). <p>
The following optimization passes are implemented:
</p>
<ul>
<li>
<p>
<a href="CombineConversions">CombineConversions</a>
</p>
</li>
<li>
<p>
<a href="CommonArg">CommonArg</a>
</p>
</li>
<li>
<p>
<a href="CommonBlock">CommonBlock</a>
</p>
</li>
<li>
<p>
<a href="CommonSubexp">CommonSubexp</a>
</p>
</li>
<li>
<p>
<a href="ConstantPropagation">ConstantPropagation</a>
</p>
</li>
<li>
<p>
<a href="Contify">Contify</a>
</p>
</li>
<li>
<p>
<a href="Flatten">Flatten</a>
</p>
</li>
<li>
<p>
<a href="Inline">Inline</a>
</p>
</li>
<li>
<p>
<a href="IntroduceLoops">IntroduceLoops</a>
</p>
</li>
<li>
<p>
<a href="KnownCase">KnownCase</a>
</p>
</li>
<li>
<p>
<a href="LocalFlatten">LocalFlatten</a>
</p>
</li>
<li>
<p>
<a href="LocalRef">LocalRef</a>
</p>
</li>
<li>
<p>
<a href="LoopInvariant">LoopInvariant</a>
</p>
</li>
<li>
<p>
<a href="Redundant">Redundant</a>
</p>
</li>
<li>
<p>
<a href="RedundantTests">RedundantTests</a>
</p>
</li>
<li>
<p>
<a href="RemoveUnused">RemoveUnused</a>
</p>
</li>
<li>
<p>
<a href="SimplifyTypes">SimplifyTypes</a>
</p>
</li>
<li>
<p>
<a href="Useless">Useless</a>
</p>
</li>
</ul>
<p>
The following implementation pass is implemented:
</p>
<ul>
<li>
<p>
<a href="PolyEqual">PolyEqual</a>
</p>
</li>
<li>
<p>
<a href="PolyHash">PolyHash</a>
</p>
</li>
</ul>
<p>
There are additional analysis and rewrite passes that augment many of the other optimization passes:
</p>
<ul>
<li>
<p>
<a href="Multi">Multi</a>
</p>
</li>
<li>
<p>
<a href="Restore">Restore</a>
</p>
</li>
<li>
<p>
<a href="Shrink">Shrink</a>
</p>
</li>
</ul>
<p>
The optimization passes can be controlled from the command-line by the options:
</p>
<ul>
<li>
<p>
<tt>diag-pass <pass></tt> -- keep diagnostic info for pass
</p>
</li>
<li>
<p>
<tt>drop-pass <pass></tt> -- omit optimization pass
</p>
</li>
<li>
<p>
<tt>keep-pass <pass></tt> -- keep the results of pass
</p>
</li>
<li>
<p>
<tt>loop-passes <n></tt> -- loop optimization passes
</p>
</li>
<li>
<p>
<tt>ssa-passes <passes></tt> -- ssa optimization passes
</p>
</li>
</ul>
</div>
<p>
<hr>
Last edited on 2009-08-02 21:41:23 by <span title="173.86.192.189"><a href="MatthewFluet">MatthewFluet</a></span>.
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