[Bug middle-end/107284] New: Option properties Mask infrastructure can be extended with wide_int_bitmask

[crazylht at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107284

            Bug ID: 107284
           Summary: Option properties Mask infrastructure can be extended
                    with wide_int_bitmask
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
          Assignee: unassigned at gcc dot gnu.org
          Reporter: crazylht at gmail dot com
  Target Milestone: ---

For x86, as more and more ISAs are introduced, we're almost running out of
ix86_isa_flags2, a ix86_isa_flags3 needs to be introduced, that caused
maintainance difficulty since there're depenedence between bits in different
isa_flag(and several values used as same purpose for isa bit mask), it would be
nice if we can introduce wide_int_bit_mask in the
opth-gen.awk/opts-functions.awk ..etc, extend wide_int_bit_mask to 256 bits,
and overload bit set/shift in wide_int_bitmask.h. So the backend can be
released from maintain those "overloads" for mask bits.