#8834: 64-bit windows cabal.exe segfaults in GC ----------------------------------+---------------------------------- Reporter: awson | Owner: 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 thoughtpolice): It's not true that those are the *only* things enabled by -O2 - you must also search for `optLevel`, which client code can depend on for specific instances if they wish (for example, maybe it's *not* an entire Core->Core pass, but an otherwise small micro-optimization). Actually, now that I'm searching and thinking about it - the only other case where we do this is when we short-cut PAPs - see 4d1ea482885481073d2fee0ea0355848b9d853a1 and `Note [avoid intermediate PAPs]` in `StgCmmLayout`. Simon committed this a while ago. I also have a Win32 build going, so I'll test this. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8834#comment:25 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler