* config/i386/sse.md (avx512f_cmp<mode>3): Extend to support masking.
        (avx512f_ucmp<mode>3): Ditto.
        (avx512f_eq<mode>3): Ditto.
        (avx512f_gt<mode>3): Ditto.
        (avx512f_testm<mode>3): Ditto.
        (avx512f_testnm<mode>3): Ditto.
        * config/i386/subst.md (SUBST_S): New.
        (mask_scalar_merge_name): Ditto.
        (mask_scalar_merge_operand3): Ditto.
        (mask_scalar_merge_operand4): Ditto.
        (mask_scalar_merge): Ditto.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@206080 138bc75d-0d04-0410-961f-82ee72b054a4