#8834: 64-bit windows cabal.exe segfaults in GC ----------------------------------+---------------------------------- Reporter: awson | Owner: jstolarek Type: bug | Status: patch Priority: highest | Milestone: 7.8.1 Component: Compiler | Version: 7.8.1-rc2 Resolution: | Keywords: Operating System: Windows | Architecture: x86_64 (amd64) Type of failure: Runtime crash | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: ----------------------------------+---------------------------------- Comment (by jstolarek): Replying to [comment:50 jstolarek]:
Simon, could we get a day or two more for this one? I'm at the very moment writing a summary of what I've learned so far and I believe it will get us very close to fixing this bug properly.
According to my experiments you can fix Windows build easily by changing definition of `isTrivial` in !CmmSink to: {{{ isTrivial :: CmmExpr -> Bool isTrivial (CmmReg (CmmLocal _)) = True isTrivial (CmmLit _) = True isTrivial _ = False }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8834#comment:52 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler