[llvm] [MacroFusion] Support multiple predicators (PR #72219)

[Wang Pengcheng via llvm-commits]

wangpc-pp wrote:

> Can you say more about the use case?

It will be used by TableGen-based MacroFusion framework. I am separating the changes into different PRs, please wait for some time. 

https://github.com/llvm/llvm-project/pull/72219