#14934: Repeated "impossible" go_axiom_rule error. -------------------------------------+------------------------------------- Reporter: galen | Owner: (none) Type: bug | Status: patch Priority: normal | Milestone: Component: Compiler | Version: 8.4.1 Resolution: | Keywords: Operating System: Linux | Architecture: x86_64 Type of failure: Compile-time | (amd64) crash or panic | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D4508 Wiki Page: | -------------------------------------+------------------------------------- Changes (by RyanGlScott): * status: new => patch * differential: => Phab:D4508 Comment: Or, for maximum terseness: {{{ $ ghc Foo.hs -c -O $ ghc Bar.hs -c -O ghc: panic! (the 'impossible' happened) (GHC version 8.2.2 for x86_64-unknown-linux): go_axiom_rule Sub0R Call stack: CallStack (from HasCallStack): prettyCurrentCallStack, called at compiler/utils/Outputable.hs:1133:58 in ghc:Outputable callStackDoc, called at compiler/utils/Outputable.hs:1137:37 in ghc:Outputable pprPanic, called at compiler/iface/TcIface.hs:1349:15 in ghc:TcIface }}} I'll use this as the regression test in Phab:D4508. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14934#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler