#14434: GHC 8.2.1 picks wrong instances with -O in a presence of an OVERLAPPABLE instance -------------------------------------+------------------------------------- Reporter: dredozubov | Owner: (none) Type: bug | Status: closed Priority: high | Milestone: 8.4.1 Component: Compiler | Version: 8.2.1 Resolution: fixed | Keywords: Operating System: Linux | Architecture: x86_64 | (amd64) Type of failure: Incorrect result | Test Case: at runtime | typecheck/should_compile/T14434 Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by bgamari): * status: merge => closed * resolution: => fixed * milestone: 8.2.3 => 8.4.1 Comment: There won't be a 8.2.3 at this point. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14434#comment:8 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler