[LLVMdev] Unreachable code in Mutex.cpp

[David Blaikie]

It looks like for a while now (5 years) some code that was meant to do
smart things in Mutex.cpp hasn't been doing such smart things:

https://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Support/Mutex.cpp?r1=29287&r2=29932&diff_format=h

I don't know if this change was even deliberate since it came in with
another change & the description doesn't mention it. Should we do away
with this logic if it hasn't been needed all this time? Reinstate it
(with the old logic? or with a configure-based preprocessor variable
instead)?