#9208: panic - attempt to prod-split strictness call demand C(S(C(C(S(LS))))) -------------------------------------------------+------------------------- Reporter: luite | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: None/Unknown | Unknown/Multiple Test Case: stranal/should_compile/T9208 | Difficulty: Blocking: | Unknown | Blocked By: | Related Tickets: -------------------------------------------------+------------------------- Changes (by simonpj): * testcase: => stranal/should_compile/T9208 Comment: Good point, thank you. In the test program you use `unsafeCoerce`, and in fact you end up doing something like {{{ (coerce ()) arg }}} that is, you take `()` (produced by `loadTHData`) and apply it to something (in `runTH`). So you are going to get some bizarre runtime crash. Maybe your real example was not as perverse as this one. But regardless, it shouldn't crash the compiler, I agree. I've fixed that; patch coming. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9208#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler