tree f99123c27841072831cf76c7ec34d912fb3c8b3b
parent 57b2fafae6ea3c35e4acf5a520a0e5f14f71ba13
author Alexey Bataev <a.bataev@hotmail.com> 1564066948 +0000
committer Alexey Bataev <a.bataev@hotmail.com> 1564066948 +0000

[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