diff options
| author | Joseph Huber <jhuber6@vols.utk.edu> | 2021-09-23 17:18:53 -0400 |
|---|---|---|
| committer | Joseph Huber <jhuber6@vols.utk.edu> | 2021-09-23 17:28:07 -0400 |
| commit | d83ca624a1d52b600ddbd8bfcbb3d5d7c6003af7 (patch) | |
| tree | 5b3e5d1079dea4c5034367da9a5df92cb713a9e3 /llvm/lib/Bitcode/Writer/BitcodeWriter.cpp | |
| parent | 2875d3d484bb82dcd7f44bccafda8a52aacc328d (diff) | |
| download | llvm-d83ca624a1d52b600ddbd8bfcbb3d5d7c6003af7.zip llvm-d83ca624a1d52b600ddbd8bfcbb3d5d7c6003af7.tar.gz llvm-d83ca624a1d52b600ddbd8bfcbb3d5d7c6003af7.tar.bz2 | |
[OpenMP] Fix data-race in new device RTL
This patch fixes a data-race observed when using the new device runtime
library. The Internal control variable for the parallel level is read in
the `__kmpc_parallel_51` function while it could potentially be written
by other threads. This causes data corruption and will cause
nondetermistic behaviour in the runtime. This patch fixes this by adding
an explicit synchronization before the region starts.
Reviewed By: jdoerfert
Differential Revision: https://reviews.llvm.org/D110366
Diffstat (limited to 'llvm/lib/Bitcode/Writer/BitcodeWriter.cpp')
0 files changed, 0 insertions, 0 deletions