#13581: UNPACK should allow recursion that obviously terminates -------------------------------------+------------------------------------- Reporter: ryanreich | Owner: (none) Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.0.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by ryanreich): When you say that it has no idea what `n` is, do you mean that it can't figure out if it is `Zero` or not, or that it can't unpack `BigWord n` at all simply because `n` is polymorphic? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13581#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler