#12962: No automatic SCC annotations for functions marked INLINABLE -------------------------------------+------------------------------------- Reporter: | Owner: MikolajKonarski | Type: bug | Status: new Priority: normal | Milestone: Component: Profiling | Version: 8.0.1 Keywords: | Operating System: Unknown/Multiple Architecture: | Type of failure: None/Unknown Unknown/Multiple | Test Case: | Blocked By: Blocking: | Related Tickets: Differential Rev(s): | Wiki Page: -------------------------------------+------------------------------------- Judging from .prof files and the -xc and -prof callstacks, GHC adds no automatic SCC annotations for functions marked `INLINABLE`. The user's guide only mentions `INLINE`: https://downloads.haskell.org/~ghc/latest/docs/html/users_guide/profiling.ht..., not `INLINABLE`. Is it a bug in documentation or implementation? In my case I managed to work around by using `-fexpose-all-unfoldings` instead of the tons of `INLINABLE` I was using before, but in general case, adding all the SCC annotations by hand seems prohibitive. e.g., in code that needs a lot of `INLINABLE` to enable specialization. Since `-fexpose-all-unfoldings` does not inhibit profiling and compiling with no optimization doesn't help recover it, the culprit is probably not the actual inlining or specialization, but rather handling of the `INLINABLE` pragma itself. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12962 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler