#9370: unfolding info as seen when building a module depends on flags in a previously-compiled module -------------------------------------+------------------------------------- Reporter: carter | Owner: richardfung Type: bug | Status: new Priority: high | Milestone: 8.2.1 Component: Compiler | Version: 7.8.3 Resolution: | Keywords: newcomer, | Inlining Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: #8635 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by richardfung): Am I correct in thinking the right way to test this is to write a function which would only be inlined if the INLINE pragma is there? Otherwise, the function would be inlined even in source files that import it with OPTIONS_GHC -O0 right? I was completely unfamiliar with inlining before this ticket so please bear with me. It seems like imported modules are still inlined even if OPTIONS_GHC -O0 is set if you run ghc --make -O. The documentation also says that -O enables cross module inlining so I'm guessing even if the source file has OPTIONS_GHC -O0, inlinings from other modules are still supposed to happen? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9370#comment:34 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler