#11688: Bytestring break failing rewrite to breakByte and failing to eliminate boxing/unboxing -------------------------------------+------------------------------------- Reporter: alexbiehl | Owner: Type: bug | Status: patch Priority: normal | Milestone: Component: Compiler | Version: 7.10.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Runtime | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D1980 Wiki Page: | -------------------------------------+------------------------------------- Comment (by bgamari): Oh dear, Phab:D1980 actually won't work at all; the problem isn't the inlining of the class methods themselves, it is the class op rule generated by GHC. Namely, {{{ Rule fired Rule: Class op == Before: GHC.Classes.== TyArg GHC.Word.Word8 ValArg GHC.Word.$fEqWord8 ValArg ds_d2p3 ValArg ds_d2p4 After: GHC.Word.$fEqWord8_$c== Cont: Stop[BoringCtxt] GHC.Types.Bool }}} This will require further pondering. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11688#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler