George Burgess IV fbf5dde96b [Support] Add an enable bit to our DebugCounters ...

r337748 made us start incrementing DebugCounters all of the time. This
makes tsan unhappy in multithreaded environments.

Since it doesn't make much sense to use DebugCounters with multiple
threads, this patch makes us only count anything if the user passed a
-debug-counter option or if some other piece of code explicitly asks
for it (e.g. the pass in D50031).

The amount of global state here makes writing a unittest for this
behavior somewhat awkward. So, no test is provided.

Differential Revision: https://reviews.llvm.org/D50150


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@338762 91177308-0d34-0410-b5e6-96231b3b80d8

2018-08-02 19:50:27 +00:00

..

llvm

[Support] Add an enable bit to our DebugCounters

2018-08-02 19:50:27 +00:00

llvm-c

Add PerfJITEventListener for perf profiling support.

2018-07-24 00:54:06 +00:00