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MLton
20241230
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<h1>RemoveUnused</h1>
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<div id="preamble">
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<p><a href="#">RemoveUnused</a> is an optimization pass for both the <a href="SSA">SSA</a> and
<a href="SSA2">SSA2</a> <a href="IntermediateLanguage">IntermediateLanguage</a>s, invoked from <a href="SSASimplify">SSASimplify</a> and
<a href="SSA2Simplify">SSA2Simplify</a>.</p>
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<h2 id="_description">Description</h2>
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<p>This pass aggressively removes unused:</p>
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<p>datatypes</p>
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<li>
<p>datatype constructors</p>
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<li>
<p>datatype constructor arguments</p>
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<li>
<p>functions</p>
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<li>
<p>function arguments</p>
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<li>
<p>function returns</p>
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<li>
<p>blocks</p>
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<li>
<p>block arguments</p>
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<li>
<p>statements (variable bindings)</p>
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<li>
<p>handlers from non-tail calls (mayRaise analysis)</p>
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<li>
<p>continuations from non-tail calls (mayReturn analysis)</p>
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<h2 id="_implementation">Implementation</h2>
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<li>
<p><a href="https://github.com/MLton/mlton/blob/master/mlton/ssa/remove-unused.fun"><code>remove-unused.fun</code></a></p>
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<p><a href="https://github.com/MLton/mlton/blob/master/mlton/ssa/remove-unused2.fun"><code>remove-unused2.fun</code></a></p>
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<h2 id="_details_and_notes">Details and Notes</h2>
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<p></p>
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Last updated Thu Oct 21 15:53:06 2021 -0400 by Matthew Fluet.
<a href="https://github.com/MLton/mlton/commits/master/doc/guide/src/RemoveUnused.adoc">Log</a>
<a href="https://github.com/MLton/mlton/edit/master/doc/guide/src/RemoveUnused.adoc">Edit</a>
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