#13423: Exception to I/O hack in demand analyzer too broad -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.4.1 Component: Compiler | Version: 8.1 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Other | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by rwbarton): Is this really wrong in this case though? In a single-threaded context there is no observable difference between writing an `IORef` and then diverging, and diverging immediately; and in a multi-threaded context the ordering of `writeIORef` with respect to anything else is not guaranteed. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/13423#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler