[PATCH] D48240: Try again to implement a FIFO task queue

[Zachary Turner via Phabricator via llvm-commits]

zturner updated this revision to Diff 152550.
zturner added a comment.

This patch deletes the `LLVM_ENABLE_THREADS=0` codepath and just errors out if you try to use this class in those circumstances.  Since the regular codepath is actually pretty straightforward and doesn't have much complexity, I went ahead and added support for tasks that return values directly to this patch.  It was only a couple of line change and saves me from having to make another patch for it.


https://reviews.llvm.org/D48240

Files:
  llvm/include/llvm/Support/TaskQueue.h
  llvm/unittests/Support/CMakeLists.txt
  llvm/unittests/Support/TaskQueueTest.cpp

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