[llvm] [Support] Support debug counters in non-assertion builds (PR #170468)

[via llvm-commits]

dyung wrote:

Hi @nikic, your change seems to be causing the test `llvm/test/CodeGen/AMDGPU/waitcnt-debug.mir` to be failing on a bot that builds without assertions enabled. Can you take a look?

https://lab.llvm.org/buildbot/#/builders/202/builds/4455

https://github.com/llvm/llvm-project/pull/170468