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John Dias authored
Several changes in this patch, partially bug fixes, partially new code: o bug fixes in ZipDataflow - added some checks to verify that facts converge - removed some erroneous checks of convergence on entry nodes - added some missing applications of transfer functions o changed dataflow clients to use ZipDataflow, making ZipDataflow0 obsolete o eliminated DFA monad (no need for separate analysis and rewriting monads with ZipDataflow) o started stack layout changes - no longer generating CopyIn and CopyOut nodes (not yet fully expunged though) - still not using proper calling conventions o simple new optimizations: - common block elimination -- have not yet tried to move the Adams opt out of CmmProcPointZ - block concatenation o piped optimization fuel up to the HscEnv - can be limited by a command-line flag - not tested, and probably not yet properly used by clients o added unique supply to FuelMonad, also lifted unique supply to DFMonad
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