[llvm] [RISCV] Fix the disassembler's handling of C.LUI when imm=0 (PR #133450)

[Craig Topper via llvm-commits]

topperc wrote:

> > Thank you. Assuming you're happy, would you be kind enough to merge it for me, please?
> 
> Yes. I'll merge it when at least one of the linux or windows build finishes.

And Windows finished while I was typing that.

https://github.com/llvm/llvm-project/pull/133450