Re: [commit: ghc] master: Remove -ddump-simpl-phases flag (ad8457f)
I think this flag is useful for debugging e.g. why something didn't optimize the way you thought. On Nov 6, 2014 1:05 PM, g...@git.haskell.org wrote: Repository : ssh://g...@git.haskell.org/ghc On branch : master Link : http://ghc.haskell.org/trac/ghc/changeset/ad8457f93807e3b7a9a24867ed69dc93662a29e3/ghc --- commit ad8457f93807e3b7a9a24867ed69dc93662a29e3 Author: Jan Stolarek jan.stola...@p.lodz.pl Date: Wed Nov 5 13:37:25 2014 +0100 Remove -ddump-simpl-phases flag --- ad8457f93807e3b7a9a24867ed69dc93662a29e3 compiler/main/DynFlags.hs| 15 +++ compiler/simplCore/CoreMonad.lhs | 40 ++-- compiler/simplCore/SimplCore.lhs | 9 + docs/users_guide/debugging.xml | 11 --- docs/users_guide/flags.xml | 6 -- 5 files changed, 14 insertions(+), 67 deletions(-) Diff suppressed because of size. To see it, use: git diff-tree --root --patch-with-stat --no-color --find-copies-harder --ignore-space-at-eol --cc ad8457f93807e3b7a9a24867ed69dc93662a29e3 ___ ghc-commits mailing list ghc-comm...@haskell.org http://www.haskell.org/mailman/listinfo/ghc-commits ___ ghc-devs mailing list ghc-devs@haskell.org http://www.haskell.org/mailman/listinfo/ghc-devs
Re: [commit: ghc] master: Remove -ddump-simpl-phases flag (ad8457f)
Simon Marlow wrote: isn't -ddump-simpl-phases useful? what's the other way to do that? -dverbose-core2core + -ddump-simple-stats Johan Tibell wrote: I think this flag is useful for debugging e.g. why something didn't optimize the way you thought. Well, you can get that information using flags mentioned above. It seemed that -ddump-simpl-phases is not used and can be safely removed. It wasn't documented at all, so the only way to figure out how it works was to look hard at the code. The output itself was rather cryptic - no information about the phase for which the stats are displayed. Again, the only way to make sense of that output was looking at the code to figure out the precise ordering of Core optimisations. With -dverbose-core2core the output makes a lot more sense because it directly follows the output of the phase. Simon PJ and Austin spoke in favour of removing that flag, so I went ahead and did that. But if indeed was used by someone to do their work we could revert that. Janek ___ ghc-devs mailing list ghc-devs@haskell.org http://www.haskell.org/mailman/listinfo/ghc-devs
