#7803: Superclass methods are left unspecialized -----------------------------------------+---------------------------------- Reporter: akio | Owner: Type: bug | Status: new Priority: normal | Component: Compiler Version: 7.6.2 | Keywords: Os: Unknown/Multiple | Architecture: Unknown/Multiple Failure: Compile-time performance bug | Blockedby: Blocking: | Related: -----------------------------------------+---------------------------------- In the attached code, Foo.foo1 gets compiled (by ghc -O2) into a call to the unspecialized version of Lib.exp5Tail, even though all the related functions are marked INLINE or SPECIALIZE. The problem seems to be that GHC creates a top-level overloaded function after the specialization pass, so the function never gets specialized. This might be the same issue as #7785, but the workaround I posted there does not work here. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7803 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler