#11106: Turning on optimizer changes behavior in 7.10.3 -------------------------------------+------------------------------------- Reporter: dsf | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Description changed by dsf: Old description:
The repository at https://github.com/ddssff/ghcbug contains a four module package that works when compiled with -O2, but fails when compiled with -O2. The cabal file builds working and failing executable.
One of the modules has OPTIONS_GHC -O0 in the header, so the bug is related to mixing modules with different optimization levels. Other than that, I have little idea what is going on.
The bug was present in 7.10,2, and is definitely still present in 7.10.3-rc1. I doubt it has been fixed since then.
New description: The repository at https://github.com/ddssff/ghcbug contains a four module package that works when compiled with -O0, but fails when compiled with -O2. The cabal file builds working and failing executable. One of the modules has OPTIONS_GHC -O0 in the header, so the bug is related to mixing modules with different optimization levels. Other than that, I have little idea what is going on. The bug was present in 7.10,2, and is definitely still present in 7.10.3-rc1. I doubt it has been fixed since then. -- -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11106#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler