commit b9b98019a08fabd76e4d5b3f161702c3696ccd33
author Alexey Bataev <a.bataev@hotmail.com> Thu Jul 25 15:02:28 2019 +0000
committer Alexey Bataev <a.bataev@hotmail.com> Thu Jul 25 15:02:28 2019 +0000
tree f99123c27841072831cf76c7ec34d912fb3c8b3b
parent 57b2fafae6ea3c35e4acf5a520a0e5f14f71ba13

[OPENMP][NVPTX]Perform memory flush if number of threads to sync is 1 or less.

Summary:
According to the OpenMP standard, barrier operation must perform
implicit flush operation. Currently, if there is only one thread in the
team, barrier does not flush the memory. Patch fixes this problem.

Reviewers: grokos, gtbercea, kkwli0

Subscribers: guansong, jdoerfert, openmp-commits, caomhin

Tags: #openmp

Differential Revision: https://reviews.llvm.org/D62398

git-svn-id: https://llvm.org/svn/llvm-project/openmp/trunk@367024 91177308-0d34-0410-b5e6-96231b3b80d8