Hi Si-Yu:
Thanks for your patch!
Here is a general comment for this patch-set, GCC require ChagneLog in
commit log, and seems like that is included in your commit log, you
can refer other commit log to see how changelog wrote.
Scalar cryptography extension seems not define builtin and intrinsic
From: SiYu Wu
This patch add gcc backend support for RISC-V Scalar Cryptography
Extension (k-ext), including machine description, builtins defines and
testcases for each k-ext's subset.
A note about Zbkx: The Zbkx should be implemented in bitmanip's Zbp, but
since zbp is not included in the b
