Which fix are you talking about? This ticket is quite muddled, we have
#11224: Program doesn't preserve semantics after pattern synonym inlining. -------------------------------------+------------------------------------- Reporter: anton.dubovik | Owner: Type: bug | Status: new Priority: highest | Milestone: 8.0.1 Component: Compiler | Version: 7.10.2 Resolution: | Keywords: | PatternSynonyms Operating System: Windows | Architecture: x86_64 Type of failure: Incorrect result | (amd64) at runtime | Test Case: Blocked By: | Blocking: Related Tickets: #11225 | Differential Rev(s): Phab:D1632 Wiki Page: | -------------------------------------+------------------------------------- Comment (by rvion): Replying to [comment:19 mpickering]: mainly discussed #11225 but I have now fixed this ticket. Sorry, I didn't read this ticket correctly. Don't mind my previous message.
However, your usecase looks quite simple and I suspect unrelated to this ticket. Yes, you're right, my bad.
-- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11224#comment:20 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler