cvs commit: fptools/ghc/compiler/ghci ByteCodeGen.lhs

[Simon Peyton Jones]

simonpj     2002/11/11 02:58:41 PST

  Modified files:
    ghc/compiler/ghci    ByteCodeGen.lhs 
  Log:
                ------------------
        Improve byte-code compilation of unboxed
                tuple returns
                ------------------
  
  The previous byte-code for returning unboxed tuples was just wrong.  It's
  a special case for the situation where we return (# s, x #), where s is
  a state token, so we can just return the single result 'x' on top of the
  stack.  Previously we generated an ENTER at the end, which is plain wrong.
  We should RETURN.
  
  It still doesn't work, for other tiresome reasons...but rather than fix it
  we'll wait for eval-apply.  Meanwhile it's less wrong than before.
  
  Revision  Changes    Path
  1.83      +14 -7     fptools/ghc/compiler/ghci/ByteCodeGen.lhs
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