#14901: dsrun014 fails with most ways -------------------------------------+------------------------------------- Reporter: alpmestan | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 8.5 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: Type of failure: Incorrect result | Unknown/Multiple at runtime | Test Case: dsrun014 Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by RyanGlScott): alpmestan, this is a consequence of the fact that `seq` has special typing rules. See `Note [Typing rule for seq]` in http://git.haskell.org/ghc.git/blob/efc844f5b955385d69d8e20b80d38311083a6665... how this is implemented (and why it's special). `pseq` does not have corresponding special typing rules, which is why it fails when given an unlifted argument. Should `pseq` be given similar magic? I'm not sure. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14901#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler