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Fix for crash in task dependencies 

With single thread using __kmpc_omp_wait_deps segfaults in OpenMP runtime.
Offloading with depend also encounters this problem when we generate
kmpc_omp_wait_deps instead of kmpc_omp_task_with_deps.

Patch by Alex Duran

Differential Revision: http://reviews.llvm.org/D21384

llvm-svn: 272949
This commit is contained in:
Jonathan Peyton 2016-06-16 20:18:31 +00:00
parent fd6ad5bba9
commit c505ab6733
1 changed files with 1 additions and 1 deletions
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2
openmp/runtime/src/kmp_taskdeps.cpp
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@ -552,7 +552,7 @@ __kmpc_omp_wait_deps ( ident_t *loc_ref, kmp_int32 gtid, kmp_int32 ndeps, kmp_de
// - if the dephash is not yet created it means we have nothing to wait for
bool ignore = current_task->td_flags.team_serial || current_task->td_flags.tasking_ser || current_task->td_flags.final;
#if OMP_45_ENABLED
ignore = ignore && thread->th.th_task_team->tt.tt_found_proxy_tasks == FALSE;
ignore = ignore && thread->th.th_task_team != NULL && thread->th.th_task_team->tt.tt_found_proxy_tasks == FALSE;
#endif
ignore = ignore || current_task->td_dephash == NULL;