Home » forums » LtU Forum Hoopl: Dataflow Optimization Made Simple Hoopl: Dataflow Optimization Made Simple by Norman Ramsey, JoÃ£o Dias, and Simon Peyton Jones. We present Hoopl, a Haskell library that makes it easy for compiler writers to implement program transformations based on dataflow analyses. The compiler writer must identify (a) logical assertions on which the transformation will be based; (b) a representation of such assertions, which should form a lattice of finite height; (c) transfer functions that approximate weakest preconditions or strongest postconditions over the assertions; and (d) rewrite functions whose soundness is justified by the assertions. Hoopl uses the algorithm of Lerner, Grove, and Chambers (2002), which can compose very simple analyses and transformations in a way that achieves the same precision as complex, handwritten ``super-analyses.'' Hoopl will be the workhorse of a new back end for the Glasgow Haskell Compiler (version 6.12, forthcoming). A continuation of work previously mentioned on LtU here. Original people, new language. More purity, more goodness. Sinfully, there does not yet seem to be a hackage package. Comment viewing options Flat list - collapsed Flat list - expanded Threaded list - collapsed Threaded list - expanded Date - newest first Date - oldest first Select your preferred way to display the comments and click "Save settings" to activate your changes.