#8072: Optimizations change result of div for Word -------------------------------------+--------------------------- Reporter: Khudyakov | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.6.3 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: x86 Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: 3676 -------------------------------------+--------------------------- Comment (by Khudyakov): I don't think #3676 is related. It's because of incorrectness of realToFrac. Funky values like NaN and ±∞ are not representable as rationals so realToFrac converts Float to Double incorrectly but specialized version does it right so this difference arise. In this bug we are dealing only with integer arithmetics. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8072#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler