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<a href="./Home">MLton 20130715</a>
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<h1>LoopInvariant</h1>
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<div class="paragraph"><p><a href="LoopInvariant">LoopInvariant</a> is an optimization pass for the <a href="SSA">SSA</a>
<a href="IntermediateLanguage">IntermediateLanguage</a>, invoked from <a href="SSASimplify">SSASimplify</a>.</p></div>
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<h2 id="_description">Description</h2>
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<div class="paragraph"><p>This pass removes loop invariant arguments to local loops.</p></div>
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<div class="content monospaced">
<pre> loop (x, y)
...
...
loop (x, z)
...</pre>
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<div class="paragraph"><p>becomes</p></div>
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<div class="content monospaced">
<pre> loop' (x, y)
loop (y)
loop (y)
...
...
loop (z)
...</pre>
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<h2 id="_implementation">Implementation</h2>
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<div class="ulist"><ul>
<li>
<p>
<a href="https://github.com/MLton/mlton/blob/master/mlton/ssa/loop-invariant.fun"><span class="monospaced">loop-invariant.fun</span></a>
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<h2 id="_details_and_notes">Details and Notes</h2>
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<div class="paragraph"><p></p></div>
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