[llvm] [BOLT]Identify indirect call (PR #123305)

[Paschalis Mpeis via llvm-commits]

paschalis-mpeis wrote:

Indeed, no stack changes but what about other side-effects?
What if we access a global, do I/O, or some other observable behavior?

BTW I too think that your case (1) should be OK, given a CFI was emitted.
My concern is whether something funny can happen in case (2).
Are we certain that secondary entrypoints will be populated for this case?

https://github.com/llvm/llvm-project/pull/123305