[ ghc-Bugs-998514 ] GHCi panic bytecode vs object code -O2

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Bugs item #998514, was opened at 2004-07-27 17:03
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Category: Build System
Group: 6.2.1
Status: Open
Resolution: None
Priority: 5
Submitted By: Ben Lippmeier (lambintheloop)
Assigned to: Nobody/Anonymous (nobody)
Summary: GHCi panic bytecode vs object code -O2

Initial Comment:

Compiling some source files with ghc -fglasgow-exts -O2
and some with GHCi results in GHCi panic. No FFI used
in source.

See attached tarball for source files and walkthrough.

-----
ghc-6.2.1: panic! (the `impossible' happened, GHC
version 6.2.1):
        Bytecode generator can't handle unboxed tuples.
 Possibly due
        to foreign import/export decls in source. 
Workaround:
        compile this module to a .o file, then restart
session.

Please report it as a compiler bug to
glasgow-haskell-bugs at haskell.org,
or http://sourceforge.net/projects/ghc/.


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