Plugin-based opcode table

[Alan Modra]

On Mon, May 23, 2022 at 04:06:17PM +0300, Dmitry Selyutin wrote:
> On Mon, May 23, 2022 at 3:59 PM Alan Modra <amodra@gmail.com> wrote:
> > I don't see any need for the artificial boundaries you might get with
> > a plugin, whatever that might look like.  ppc-opc.c already supports
> > multiple incompatible powerpc cpu implementations, including ones that
> > depart significantly from current powerpc ISA documentation.
> 
> Alan, please, correct me if I'm wrong: does it mean that we can just
> stick to marking new instructions and facilities with a custom per-CPU
> flag? For now I introduced the -mlibresoc CPU which enabled the
> PPC_OPCODE_SVP64 flag, and marked some new instructions appropriately
> with this flag. Would that be OK if we follow this approach?

Yes, that would be fine.

-- 
Alan Modra
Australia Development Lab, IBM