Re: [GHC] #10720: New GHC fails to specialize imported function

#10720: New GHC fails to specialize imported function -------------------------------------+------------------------------------- Reporter: wyager | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.2 Resolution: | Keywords: | performance, inline, specialize Operating System: MacOS X | Architecture: x86_64 Type of failure: Runtime | (amd64) performance bug | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by Simon Peyton Jones ): In [changeset:"a4261549afaee56b00fbea1b4bc1a07c95e60929/ghc" a426154/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="a4261549afaee56b00fbea1b4bc1a07c95e60929" Warn about missed specialisations for imports This change was provoked by Trac #10720, where a missing INLINEABLE pragma gave very poor performance. The change is to warn when an imported function is not specialised in a situation where the user expects it to be. New flags -fwarn-missed-specialisations -fwarn-all-missed-specialisations Documented in user manual. See Note [Warning about missed specialisations] }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10720#comment:3 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler