#10665: INLINE breaks rewrite rules when '-g' is used -------------------------------------+------------------------------------- Reporter: slyfox | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.2-rc2 (CodeGen) | Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by slyfox): (side note: I'm not an author of those packages, just a mere distribution packager :)) conduit is a big package, i'll try to prepare self-contained bundle to ease analysis of existing RULES in there. Meanwhile I've found smaller package that fails in similar way: unification-fd-0.10.0.1. The plus is that everything happens in a single module '''Data.Functor.Fixedpoint'''. The failure is: {{{ $ ghc -hide-all-packages -package=base -O2 -c -g Fixedpoint.hs ghc: panic! (the 'impossible' happened) (GHC version 7.10.2 for x86_64-unknown-linux): Tick in rule eps_aPv @ (Fix f_aPy) (unFix @ f_aPy x_a2gY) Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug (Or with -dsuppress-uniques:) Tick in rule eps @ (Fix f) (unFix @ f x) }}} Would it be easy to add actual rule name to that crash to ease analysis of what exactly went wrong? (Or maybe there already is a trace knob for it?) -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10665#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler