[clang] [compiler-rt] [llvm] [IRPGO] [Draft] Import vtable definitions in ThinTLO and use more efficient vtable comparison sequence with cost-benefit analysis (PR #69141)

[Mingming Liu via llvm-commits]

minglotus-6 wrote:

Close this stale patch and won't merge conflicts in this one.

Working on https://github.com/llvm/llvm-project/pull/81442 now.

https://github.com/llvm/llvm-project/pull/69141