#10527: Panic Simplifier ticks exhausted with type families -------------------------------------+------------------------------------- Reporter: sopvop | Owner: bgamari Type: bug | Status: new Priority: highest | Milestone: 7.10.2 Component: Compiler | Version: 7.10.1-rc1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Blocked By: | Test Case: Related Tickets: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- Comment (by bgamari): The whittled down test case can be found here, https://github.com/bgamari/ghc-T10527/blob/master/Bug3.hs. It've been testing with, {{{ ghc -fforce-recomp -O Bug3.hs -fsimpl-tick-factor=4 -dshow-passes -dverbose-core2core -ddump-rule-firings -ddump-rules -ddump-rule-rewrites -dsuppress-coercions -ddump-inlinings -ddump-to-file >|ghc.log 2>&1; }}} With both the current state of the `ghc-7.10` branch and `ghc-7.10.1-release`. Note that this test case been reduced to the bare minimum to reproduce on 7.10.2 yet not on 7.10.1. Lowering `simpl-tick- factor` to 3 causes it to fail on both. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10527#comment:14 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler