* config/rs6000/rs6000.c (rs6000_emit_swdivsf): New function.
        (rs6000_emit_swdivdf): New function.
        * config/rs6000/rs6000.md (fres): New pattern.
        (divsf3): Add approximation through rs6000_emit_swdivsf.
        (fred): New pattern.
        (divdf3): Add approximation through rs6000_emit_swdivdf.
        * config/rs6000/rs6000-protos.h (rs6000_emit_swdivsf): Declare.
        (rs6000_emit_swdivdf): Declare.
        * config/rs6000/rs6000.opt (mswdiv): New option.
        * doc/invoke.texi (RS/6000 and PowerPC Options): Document mswdiv.

From-SVN: r100645