#14103: Retypechecking the loop in --make mode is super-linear when there are many .hs-boot modules -------------------------------------+------------------------------------- Reporter: duog | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.3 Keywords: hs-boot | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- At time of writing master is at commit 14457cf6a50f708eecece8f286f08687791d51f7. In GhcMake.hs, both upsweep and parUpsweep call getModLoop for each module. getModLoop is (at least) linear when called on a .hs-boot ModSummary. See comments in Phab:3646. This isn't a big deal in practice, since .hs-boot modules are uncommon, but it does irk me, and it will be easy to fix. Fixing this would also be an opportunity to de-duplicate some logic in upsweep and parUpsweep. ccing niteria as he has worked with this code recently. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14103 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler