#3924: Strictness analyser missing useful strictness -------------------------------------+------------------------------------ Reporter: simonpj | Owner: Type: bug | Status: new Priority: low | Milestone: 7.6.2 Component: Compiler | Version: 6.12.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------------+------------------------------------ Comment (by nomeata): This looks like it can be solved by the new callartiy analysis. It does now, because * all the functions are top-level functions, and callartiy analysis now also looks at top-level functions, and * they are mutually recursive, which the callarity analysis does handle now. Now we get these signatures: {{{ $wf3 :: Int# -> Int# -> Int# -> Int# $wf4 :: Int# -> Int# -> Int# -> Int# -> Int# }}} (and f2 has disappeared, by inlining I supposed). Code is currently validating and will hit master soon after. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/3924#comment:10 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler