[PATCH 0/3] [og9] OpenACC async fixes for AMD GCN

[Julian Brown]

These patches stabilise async support for AMD GCN. Several tests that
previously failed (some intermittently) now work.

Further commentary is provided alongside each patch. Tested with
offloading to AMD GCN.

I will apply shortly to the openacc-gcc-9-branch.

Thanks,

Julian

Julian Brown (3):
  [og9] Wait at end of OpenACC asynchronous kernels regions
  [og9] Use temporary buffers for async host2dev copies
  [og9] Wait on queue-full condition in AMD GCN libgomp offloading
    plugin

 gcc/ChangeLog.openacc       |  7 +++++
 gcc/omp-oacc-kernels.c      | 28 ++++++++++++++-----
 libgomp/ChangeLog.openacc   | 19 +++++++++++++
 libgomp/plugin/plugin-gcn.c | 31 ++++++++++++++++----
 libgomp/target.c            | 56 +++++++++++++++----------------------
 5 files changed, 94 insertions(+), 47 deletions(-)

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2.22.0