internal/bytealg: port bytealg functions to reg ABI on riscv64
This CL adds support for the reg ABI to the bytes functions for
riscv64. These are initially under control of the
GOEXPERIMENT macro until all changes are in.
Change-Id: I026295ae38e2aba055f7a51c77f92c1921e5ec97
Reviewed-on: https://go-review.googlesource.com/c/go/+/361916
Run-TryBot: mzh <mzh@golangcn.org>
TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Ian Lance Taylor <iant@google.com>