* h8300/h8300.c (one_insn_adds_subs_operand): New function.
        (h8300_adjust_insn_length): New function.
        * h8300/h8300.h (ADJUST_INSN_LENGTH): Define.
        * h8300/h8300.md: Remove obsolete comments.
        (move patterns): Tweak constraints.
        (tst patterns): Use "register_operand" for predicate.
        (adds pattern): Use one_insn_adds_subs_operand to get length
        computation correct.
        (subs pattern): Similarly.
        (movstrhi): Remove unused expander.
        (fancy*, pxor, and-not patterns): Remove.  No longer needed.

From-SVN: r11907