[llvm] [LLVM][MC][DecoderEmitter] Add support to specialize decoder per bitwidth (PR #154865)

[Rahul Joshi via llvm-commits]

jurahul wrote:

Thanks. I'm not sure what's happening. Basically the output or running llvm-tblgen for AMDGPU with the specialize flags seems to be just the record dumps. Can you show the tablegen command the produced AMDGPUGenDisassemblerTables.inc?

https://github.com/llvm/llvm-project/pull/154865