[PATCH] D61115: Parallel: only allow the first TaskGroup to run tasks parallelly

[Rui Ueyama via Phabricator via llvm-commits]

ruiu accepted this revision.
ruiu added a comment.
This revision is now accepted and ready to land.

LGTM

I spent a few hours to simplify this code and make it fundamentally reentrant but failed. It is hard to debug multi-threading code. For now, I think this is a good measure to prevent accidentally writing nested use of this thread pool executor.


Repository:
  rL LLVM

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  https://reviews.llvm.org/D61115/new/

https://reviews.llvm.org/D61115