[llvm] [RISCV] Switch to sign-extended loads if possible in RISCVOptWInstrs (PR #144703)

[Alex Bradbury via llvm-commits]

asb wrote:

> If I remember right, there is no c.lb in Zcb. Does this make compression worse?

You're right, I'll update to exclude LB.

https://github.com/llvm/llvm-project/pull/144703