#7944: GHC goes into an apparently infinite loop at -O2 -------------------------------------+------------------------------------- Reporter: bos | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.9 Resolution: | Keywords: SpecConstr Operating System: Unknown/Multiple | Architecture: x86_64 Type of failure: Compile-time | (amd64) crash | Test Case: Blocked By: | Blocking: Related Tickets: #5550 #8852 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by RyanGlScott): I just tried compiling the programs in comment:5 and comment:8 with GHC 8.2.1 and HEAD, and neither went into an infinite loop. I'm not sure OtToMH what commit fixed this (wild guess: 8674883c137401873fd53a6963acd33af651c2af ?), but we should find it and add a regression test for it so that this stays fixed. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/7944#comment:12 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler