combine.c (simplify_set): match the mode of the constant 0 with the tested operand to match the compare...

2004-07-15  Roman Zippel  <zippel@linux-m68k.org>

        * combine.c (simplify_set): match the mode of the constant 0 with
        the tested operand to match the compare behaviour and the
        simplify_relational_operation() expectation.

From-SVN: r84779