all package:ghc

All the primop ids, as a list
Like "realArgRegsCover", but always includes the node. See Note [realArgRegsCover].
Floating point argument registers according to the calling convention
Integer argument registers according to the calling convention
All machine register numbers.
Registers available to the register allocator. These are all registers minus those with a fixed role in RISCV ABI (zero, lr, sp, gp, tp, fp, tmp) and GHC RTS (Base, Sp, Hp, HpLim, R1..R8, F1..F6, D1..D6.)
Set corresponding register bit to 0