* config/rs6000/rs6000-protos.h (expand_block_clear): Declare.

        * config/rs6000/rs6000.md (clrmemsi): New pattern.
        * config/rs6000/rs6000.c (expand_block_clear): New function.
        (expand_block_move): Convert alignment to bits.  Use SImode and
        HImode for unaligned addresses if not STRICT_ALIGNMENT.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@85787 138bc75d-0d04-0410-961f-82ee72b054a4