i386.md (*movoi_internal_avx): Use standard_sse_constant_opcode for alternative 0.
* config/i386/i386.md (*movoi_internal_avx): Use
standard_sse_constant_opcode for alternative 0.
(*movti_internal_sse): Ditto.
(*movti_internal_rex64): Use standard_sse_constant_opcode for
alternative 2.
(*movdi_internal_rex64): Use standard_sse_constant_opcode for
sselog1 type moves.
(*movsi_internal): Ditto.
(*movdi_internal): Ditto. Add ssecvt type moves.