tree 55f7849cce5ea487700c6df3d6fd9205ca13673e
parent b4efbcf3febda3a201cca9cc8c73f2613c14a828
author Alexey Bataev <a.bataev@hotmail.com> 1546018266 +0000
committer Alexey Bataev <a.bataev@hotmail.com> 1546018266 +0000

[OPENMP][NVPTX]Fixed initialization of the data-sharing interface.

Summary:
Avoid using of the atomic loop to wait for the completion of the
data-sharing interface initialization, use __shfl_sync instead for the
communication within the warp to signal other threads in the warp about
completion of the initialization.

Reviewers: gtbercea, kkwli0, grokos

Subscribers: guansong, jfb, caomhin, openmp-commits

Differential Revision: https://reviews.llvm.org/D56100

git-svn-id: https://llvm.org/svn/llvm-project/openmp/trunk@350129 91177308-0d34-0410-b5e6-96231b3b80d8