Hi Kito,
On 9/23/21 12:57 AM, Kito Cheng wrote:
Bit manipulation extension[1] is finishing the public review and waiting for
the rest of the ratification process, I believe that will become a ratified
extension soon, so I think it's time to submit to upstream for review now :)
As the title included RFC, it's not a rush to merge to trunk yet, I would
like to merge that until it is officially ratified.
This patch set is the implementation of bit-manipulation extension, which
includes zba, zbb, zbc and zbs extension, but only included in instruction/md
pattern only, no intrinsic function implementation.
Most work is done by Jim Willson and many other contributors
on https://github.com/riscv-collab/riscv-gcc.
[1] https://github.com/riscv/riscv-bitmanip/releases/tag/1.0.0
I wanted to give these a try. Is it reasonable to apply these to a gcc
11.1 baseline and give a spin in buildroot or do these absolutely have
to be bleeding edge gcc.
Thx,
-Vineet
