#11263: "Simplifier ticks exhausted" that resolves with fsimpl-tick-factor=200 -------------------------------------+------------------------------------- Reporter: jberryman | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Compile-time | Unknown/Multiple performance bug | Test Case: Blocked By: | Blocking: Related Tickets: #10527 #5539 | Differential Rev(s): #8319 | Wiki Page: | -------------------------------------+------------------------------------- Comment (by stusmith): Also in `cabal install diagrams`: {{{ [2 of 5] Compiling Graphics.Svg.Core ( src/Graphics/Svg/Core.hs, dist/build/Graphics/Svg/Core.o ) ghc: panic! (the 'impossible' happened) (GHC version 7.8.4 for x86_64-unknown-linux): Simplifier ticks exhausted When trying UnfoldingDone base:Foreign.Storable.$fStorableWord8_$cpokeByteOff{v r2gn} [gid] 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: 34200 }}} (On Ubuntu server 15.10). Output from `-ddump-simpl-stats` is attached as `diagrams-dump-simpl- stats.txt`. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11263#comment:8 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler