[llvm] [llvm][RISCV] Handle atomic and volatile in ZilsdOptimizer (PR #169169)

[Brandon Wu via llvm-commits]

4vtomat wrote:

> It's not legal to change the size of an atomic/volatile operation. I think I need to leave the SelectionDAG handling for them.

Do you mean it's not gonna compile if we have `i64 load volatile` but not `zilsd`?

https://github.com/llvm/llvm-project/pull/169169