#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 awson): Replying to [comment:52 jstolarek]:
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 }}}
Hmm, on my experiments changing `isTrivial` to {{{ isTrivial :: CmmExpr -> Bool isTrivial (CmmReg (CmmLocal _)) = True -- isTrivial (CmmLit _) = True isTrivial _ = False }}} alone was not enough to fix things - see my comment 19. So doing `CmmLit` branch `True` makes this work? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8834#comment:54 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler