[clang] [llvm] [clang][DebugInfo] Add virtual call-site target information in DWARF. (PR #167666)

[David Blaikie via llvm-commits]

dwblaikie wrote:

> Thanks @dwblaikie. Do you have a strong opinion on flag/front end control for this - is gating behind -gsce needed & enough, or would it make sense to add a flag specifically for it if it's not too niche?

Since I think it's mostly you folks using the call site stuff anyway, I'd probably gate it under the same flag. Though perhaps @adrian-prantl has opinions on whether Apple wants to pay the cost (got some numbers on the file size cost?) if they aren't immediately going to be taking advantage of it.

https://github.com/llvm/llvm-project/pull/167666