Hi Vineet: I am not familiar with buildroot, so I am not sure which GCC version will work, but I think the patch set should be able to apply both gcc 11.1 and trunk without conflict.
Here is a gcc 11.1 + this patch set on my github, hope this could help :) https://github.com/kito-cheng/riscv-gcc/tree/riscv-gcc-11.1.0-zbabcs On Thu, Oct 14, 2021 at 4:22 AM Vineet Gupta <vine...@rivosinc.com> wrote: > > 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
