[llvm] [WIP][AMDGPU][MC] Allow 128-bit rsrc register in MIMG instructions (PR #132264)

[Jun Wang via llvm-commits]

jwanggit86 wrote:

> > So, if I continue with the approach I'd have to modify the class `MCInstrDesc`.
> 
> That's #138127, right?

Indeed. Thanks for pointing that out.

https://github.com/llvm/llvm-project/pull/132264