i386.md (SSEINT16): New.

        * config/i386/i386.md (SSEINT16): New.
        (movv16qi, movv8hi, movv4si, movv2di): Compress via macros.
        (movv16qi_internal, movv8hi_internal, movv4si_internal,
        movv2di_internal): Compress via macros.  Add SSE zero alternative.
        Fix pure SSE alternatives to use 'x' instead of 'Y'.
        (MMXINT8): New.
        (movv8qi, movv4hi, movv2si, movv8qi_internal, movv4hi_internal,
        movv2si_internal): Compress via macros.
        (SSEPUSH, MMXPUSH): New.
        (pushv18qi, pushv8hi, pushv4si, pushv2di, pushti, pushv4sf, pushv2df,
        pushv8qi, pushv4hi, pushv2si, pushv2sf): Compress via macros.

From-SVN: r92374