[OpenMP][libomptarget] Flush intermediate values during team reduction
Summary: Ensure intermediate values of a team reduction are flushed to memory. Reviewers: ABataev, caomhin Reviewed By: ABataev Subscribers: guansong, jfb, openmp-commits Differential Revision: https://reviews.llvm.org/D55219 llvm-svn: 348148
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@ -444,6 +444,7 @@ EXTERN int32_t __kmpc_nvptx_teams_reduce_nowait_simple(kmp_Ident *loc,
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EXTERN void
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__kmpc_nvptx_teams_end_reduce_nowait_simple(kmp_Ident *loc, int32_t global_tid,
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kmp_CriticalName *crit) {
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__threadfence_system();
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(void)atomicExch((uint32_t *)crit, 0);
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}
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