#10549: floatExpr tick break<2> -------------------------------------+------------------------------------- Reporter: NeilMitchell | Owner: bgamari Type: bug | Status: closed Priority: high | Milestone: 7.10.3 Component: Compiler | Version: 7.10.2 Resolution: fixed | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: T10549 Blocked By: | Blocking: Related Tickets: | Differential Revisions: Phab:D1128 -------------------------------------+------------------------------------- Comment (by NeilMitchell): I ran into this again and reduced it to something fairly different, and quite a lot simpler. You may want to incorporate the new example as an additional test case: {{{ {-# OPTIONS_GHC -O #-} module Main(main) where import GHC.Exts main = print 1 go (Ptr a) = a }}} Note the revised test case only requires GHC, not ByteString etc. With GHC 7.10.2, running runhaskell over it gives: {{{ ghc: panic! (the 'impossible' happened) (GHC version 7.10.2 for i386-unknown-mingw32): floatExpr tick break<1>() }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10549#comment:16 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler