#10459: -fsimple-tick-factor required -------------------------------------+------------------------------------- Reporter: mikehat | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.6.3 Resolution: | Keywords: fsimple- Operating System: Linux | tick-factor Type of failure: None/Unknown | Architecture: Blocked By: | Unknown/Multiple Related Tickets: | Test Case: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by Henk-Jan): I got almost the same message when compiling package SFML: ~~~~ [34 of 72] Compiling SFML.Graphics.Transform ( dist\dist-sandbox- 12e87adf\build\SFML\Graphics\Transform.hs, dist\dist-sandbox- 12e87adf\build\SFML\Graphics\Transform.o ) ghc.exe: panic! (the 'impossible' happened) (GHC version 7.10.1 for i386-unknown-mingw32): Simplifier ticks exhausted When trying UnfoldingDone $j_s8N2 To increase the limit, use -fsimpl-tick-factor=N (default 100) If you need to do this, let GHC HQ know, and what factor you needed To see detailed counts use -ddump-simpl-stats Total ticks: 380264 ~~~~ Setting -fsimpl-tick-factor=20000000 did not help. I am using GHC 7.10.1 on Windows. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10459#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler