genMachOp :: MachOp -> [CmmExpr] -> SDoc
genMachOp mop args
   | Just doc <- infixMachOp mop = case args of
        -- dyadic
        [x,y] -> pprExpr9 x <+> doc <+> pprExpr9 y

        -- unary
        [x]   -> doc <> pprExpr9 x

        _     -> pprTrace "PprCmm.genMachOp: machop with strange number of args"
                          (pprMachOp mop <+>
                            parens (hcat $ punctuate comma (map pprExpr args)))
                          empty

   | isJust (infixMachOp1 mop)
   || isJust (infixMachOp7 mop)
   || isJust (infixMachOp8 mop)  = parens (pprExpr (CmmMachOp mop args))

   | otherwise = char '%' <> ppr_op <> parens (commafy (map pprExpr args))
        where ppr_op = text (map (\c -> if c == ' ' then '_' else c)
                                 (show mop))
                -- replace spaces in (show mop) with underscores,

--
-- Unsigned ops on the word size of the machine get nice symbols.
-- All else get dumped in their ugly format.
--
genMachOp :: MachOp -> [CmmExpr] -> SDoc
genMachOp mop args
   | Just doc <- infixMachOp mop = case args of
        -- dyadic
        [x,y] -> pprExpr9 x <+> doc <+> pprExpr9 y

        -- unary
        [x]   -> doc <> pprExpr9 x

        _     -> pprTrace "PprCmm.genMachOp: machop with strange number of args"
                          (pprMachOp mop <+>
                            parens (hcat $ punctuate comma (map pprExpr args)))
                          empty

   | isJust (infixMachOp1 mop)
   || isJust (infixMachOp7 mop)
   || isJust (infixMachOp8 mop)  = parens (pprExpr (CmmMachOp mop args))

   | otherwise = char '%' <> ppr_op <> parens (commafy (map pprExpr args))
        where ppr_op = text (map (\c -> if c == ' ' then '_' else c)
                                 (show mop))
                -- replace spaces in (show mop) with underscores,

--
-- Unsigned ops on the word size of the machine get nice symbols.
-- All else get dumped in their ugly format.
--
genMachOp mop args
   | Just doc <- infixMachOp mop = case args of
        -- dyadic
        [x,y] -> pprExpr9 x <+> doc <+> pprExpr9 y

        -- unary
        [x]   -> doc <> pprExpr9 x

        _     -> pprTrace "PprCmm.genMachOp: machop with strange number of args"
                          (pprMachOp mop <+>
                            parens (hcat $ punctuate comma (map pprExpr args)))
                          empty

   | isJust (infixMachOp1 mop)
   || isJust (infixMachOp7 mop)
   || isJust (infixMachOp8 mop)  = parens (pprExpr (CmmMachOp mop args))

   | otherwise = char '%' <> ppr_op <> parens (commafy (map pprExpr args))
        where ppr_op = text (map (\c -> if c == ' ' then '_' else c)
                                 (show mop))
                -- replace spaces in (show mop) with underscores,

--
-- Unsigned ops on the word size of the machine get nice symbols.
-- All else get dumped in their ugly format.
--