[Openmp-commits] [openmp] [libomp] Set `KMP_USE_YIELD=2` when `OMP_WAIT_POLICY=active` if it's not specified explicitly (PR #199628)

[Ryotaro Kasuga via Openmp-commits]

kasuga-fj wrote:

(Sorry, I forgot to include this.)
I also tried running the [OpenMP Microbenchmarks](https://github.com/EPCCed/epcc-openmp-microbenchmarks/), and I observed a performance improvement in the BARRIER benchmark in syncbench.

https://github.com/llvm/llvm-project/pull/199628