#6135: Unboxed Booleans ---------------------------------+------------------------------------------ Reporter: benl | Owner: jstolarek Type: feature request | Status: patch Priority: normal | Milestone: 7.8.1 Component: Compiler | Version: 7.4.1 Keywords: | Os: Unknown/Multiple Architecture: Unknown/Multiple | Failure: None/Unknown Difficulty: Unknown | Testcase: Blockedby: | Blocking: Related: #605 | ---------------------------------+------------------------------------------ Comment(by benl): Ok, then find the smallest possible program that segfaults, then look at the Cmm and assembly code to see what's changed. You'll particularly want to ensure that the base libraries are built with the original working compiler, but then build only your test programs with the hacked compiler. There is also a "Debugging GHC" guide on the developers wiki. It might be time to learn how to use GDB. -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/6135#comment:48 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler