Iavor, Thanks.
> One way to test this would be to name the equality function explicitly. For > example, something like this: > myEquality x y = ... > instance Eq MyType where (==) = myEquality Good idea (but a little painful!). > Another option would be to look at the generated core by using -ddump-simpl > when compiling. This will generate a whole bunch of output, which you can > redirect to a file and the search for the mysterious symbols inside. The symbols aren't in the core of the module I'm profiling---sorry, I didn't mention that the symbols are from an imported library (compiled with -auto-all, so the library symbols are included in the .prof). Is there a convenient way to dump core when building libraries with cabal? (--ghc-options=-ddump-simpl doesn't seem to do it). Anyway, I'll resort to your option #1. Thanks, Lee >> Hi, >> >> I am profiling a Haskell program using GHC, and after executing the >> program with +RTS -p, I get a .prof file that lists the cost centers >> of the program. Some of the cost centers listed are for function >> symbols that do not exist in the given module. For example, I have in >> my .prof file: >> >> COST CENTRE MODULE %time %alloc >> ==_a2MT Foo 19.8 0.0 >> ==_a2R8 Foo 17.8 0.0 >> ==_a2Bg Bar 13.7 0.0 >> .... .... >> >> It appears these are generated symbols; how do I find out what those >> function symbols correspond to? (In this case, my assumption is that >> these symbols refer to instances of the Eq class, but I'm not sure.) >> >> [I couldn't find anything about this in the GHC online documentation >> or via Googling, but sorry if I missed it.] >> >> Thanks, >> Lee >> >> _______________________________________________ >> Haskell-Cafe mailing list >> [email protected] >> http://www.haskell.org/mailman/listinfo/haskell-cafe > > _______________________________________________ Haskell-Cafe mailing list [email protected] http://www.haskell.org/mailman/listinfo/haskell-cafe
