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  • Glasgow Haskell CompilerGlasgow Haskell Compiler
  • GHCGHC
  • Issues
  • #1257
Closed
Open
Issue created Mar 31, 2007 by Ian Lynagh <igloo@earth.li>@trac-igloo

Bytecode generator can't handle unboxed tuples

We need to implement unboxed tuple support in ghci.

For example, with:

f :: a -> b -> (# a, b #)
f x y = (# x, y #)

we get:

$ ghci -v0 -fglasgow-exts w.hs
ghc-6.6: panic! (the 'impossible' happened)
  (GHC version 6.6 for x86_64-unknown-linux):
        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 this as a GHC bug:  http://www.haskell.org/ghc/reportabug
Trac metadata
Trac field Value
Version 6.6
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component GHCi
Test case
Differential revisions
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Blocking
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Operating system Unknown
Architecture Unknown
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