#10069: CPR related performance issue -------------------------------------+------------------------------------- Reporter: pacak | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.1-rc2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Runtime | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by pacak): Found a file, it contains -fno-spec-constr on top, a comment to that key: -- this was added because it makes compilation blow up with ghc-7.8.3, and -- sims were neutral. -- Consider removing after ghc is fixed. It contains relatively simple Parser parser and a bunch of functions modifying a huge data structure - different fields in this structure. 507572 1368414112 0 313 >MSMLSSSSSSLLMMSDDDD XXXXXXX-0.1.0.0:XXXXXXX.$wa{v rbsKm} With removed -fno-spec-constr it takes forever to compile (30 minutes already, that's 700 lines of code). Trying to pick relevant bits of core. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10069#comment:9 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler