Dear GCC Maintainers and Steering Committee,
I'm currently doing a feasibility study and effort estimate for
upstreaming the existing ARCv3 out-of-tree port [1].
Question: Is there likely to be any objection to adding a new "arc64"
port in addition to the existing "arc" port?
At this point, I would like to check that the general approach is likely
to be accepted at the end of the project. Or, at least not rejected for
this most fundamental of reasons.
The ARCv3 port has been written as a new backend because it is not just
a simple evolution of the ARC architecture and starting afresh made more
sense to the developers at the time. I'm aware that there are some
precedents for this (sh64, ia64, aarch64), so I think it's probably
fine, right?
If necessary, I can do a closer analysis of the two ports and figure out
how to unify them, but of course that's going to take longer and cost more.
Any advice would be appreciated.
Thanks very much,
Andrew
[1] https://github.com/foss-for-synopsys-dwc-arc-processors/gcc/tree/arc64
