[clang] [compiler-rt] [llvm] [TypeProf][InstrFDO]Implement more efficient comparison sequence for indirect-call-promotion with vtable profiles. (PR #81442)

[Teresa Johnson via cfe-commits]

https://github.com/teresajohnson commented:

I haven't looked at the tests yet, but some comments/questions from a first pass through most of the code

https://github.com/llvm/llvm-project/pull/81442