4 Polyvariance is an optimization pass for the <:SXML:>
5 <:IntermediateLanguage:>, invoked from <:SXMLSimplify:>.
9 This pass duplicates a higher-order, `let` bound function at each
10 variable reference, if the cost is smaller than some threshold.
14 * <!ViewGitFile(mlton,master,mlton/xml/polyvariance.fun)>
16 == Details and Notes ==