#7684: cgrun071 segfaults ----------------------------------+---------------------------------- Reporter: tibbe | Owner: leroux Type: bug | Status: new Priority: normal | Milestone: 7.8.1 Component: Compiler | Version: 7.7 Resolution: | Keywords: Operating System: MacOS X | Architecture: x86_64 (amd64) Type of failure: Runtime crash | Difficulty: Unknown Test Case: cgrun071 | Blocked By: Blocking: | Related Tickets: ----------------------------------+---------------------------------- Comment (by tibbe): As you can see from the assembly the `POPCNT` instruction is never used and can't thus be the cause of the segfault. Besides, if I remember correctly incorrect instructions give an "illegal instruction" crash on OS X, not a segfault. The ghc-prim function is called {{{ call hs_popcnt16 }}} so the issue is most likely to do with that call (e.g. narrowing). -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/7684#comment:21 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler