#13745: Investigate compile-time regressions in regex-tdfa-1.2.2 -------------------------------------+------------------------------------- Reporter: bgamari | Owner: (none) Type: task | Status: new Priority: high | Milestone: 8.2.3 Component: Compiler | Version: 8.0.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by rahulmutt): I recently merged the DmdAnal module from ghc master into Eta and observed a 2-3x blowup in generated codesize for the exact same module - Text.Regex.TDFA.NewDFA.Engine_FA. Given that the Eta code base does not yet contain the early inlining patch or anything relating to join points, I think one thing to be looking at is the impact of the new changes to the demand analyzer and how the inliner reacts to strictness/usage information. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13745#comment:15 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler