#9732: Pattern synonyms and unboxed values -------------------------------------+------------------------------------- Reporter: monoidal | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.3 Keywords: | Operating System: Architecture: Unknown/Multiple | Unknown/Multiple Difficulty: Unknown | Type of failure: Compile- Blocked By: | time crash Related Tickets: | Test Case: | Blocking: | Differential Revisions: -------------------------------------+------------------------------------- It's possible to declare a toplevel unboxed value with a pattern synonym, which causes a panic: {{{ {-# LANGUAGE PatternSynonyms, MagicHash #-} pattern P = 0# }}} (compare with error on `x = 0#`). -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9732 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler