[llvm] [TableGen][DecoderEmitter] Add option to emit type-specialized code (PR #146593)

[Rahul Joshi via llvm-commits]

jurahul wrote:

> I tried to resolve conflicts induced by me (and failed to properly resolve one in AMDGPUDisassembler.cpp).

Thanks. Really appreciate it. I am hoping I can find some time this week to work on this (finish perf experiment and address the comments above).

https://github.com/llvm/llvm-project/pull/146593