[compiler-rt] [asan] Speed up ASan ODR indicator-based checking (PR #100923)

[Vitaly Buka via llvm-commits]

vitalybuka wrote:

BTW. 
My concern is slowness of 
__asan_after_dynamic_init/__asan_before_dynamic_init
They are 10x slower then unpatched `register`.
However it's not enabled by default, so maybe it's unused in your env.

I have patches for that and will CC you.

https://github.com/llvm/llvm-project/pull/100923