Re: RFA: MN10300: Fix splitting AND insns

[Nick Clifton <nickc at redhat dot com>]

Hi Jeff,

> This is fine,

Thanks - committed.

> after adding a function comment for mn10300_split_and_operand_count;

I added this comment:

/* This function is used to help split:

     (set (reg) (and (reg) (int)))

   into:

     (set (reg) (shift (reg) (int))
     (set (reg) (shift (reg) (int))

   where the shitfs will be shorter than the "and" insn.

   It returns the number of bits that should be shifted.  A positive
   values means that the low bits are to be cleared (and hence the
   shifts should be right followed by left) whereas a negative value
   means that the high bits are to be cleared (left followed by right).
   Zero is returned when it would not be economical to split the AND.  */


Cheers
  Nick