message: [OpenMP][OMPT] Fix unsafe initialization of ompt_data_t objects
  Initializing an ompt_data_t object using the pointer union member is potentially
  unsafe in 32-bit programs.  This change fixes the issue
  by using the constant, ompt_data_none.
  Patch by Hansang Bae
diff: @@ -1209,8 +1209,7 @@ void __kmp_serialized_parallel(ident_t *loc, kmp_int32 global_tid) {
  #endif /* OMP_40_ENABLED */
  #if OMPT_SUPPORT
  - ompt_data_t ompt_parallel_data;
  - ompt_parallel_data.ptr = NULL;
  + ompt_data_t ompt_parallel_data = ompt_data_none;
  ompt_data_t *implicit_task_data;
  void *codeptr = OMPT_LOAD_RETURN_ADDRESS(global_tid);
  if (ompt_enabled.enabled &&
  @@ -1477,8 +1476,7 @@ int __kmp_fork_call(ident_t *loc, int gtid,
  master_set_numthreads = master_th->th.th_set_nproc;
  #if OMPT_SUPPORT
  - ompt_data_t ompt_parallel_data;
  - ompt_parallel_data.ptr = NULL;
  + ompt_data_t ompt_parallel_data = ompt_data_none;
  ompt_data_t *parent_task_data;
  omp_frame_t *ompt_frame;
  ompt_data_t *implicit_task_data;
  @@ -3726,7 +3724,7 @@ int __kmp_register_root(int initial_thread) {
  }
  root_thread->th.th_info.ds.ds_gtid = gtid;
  #if OMPT_SUPPORT
  - root_thread->th.ompt_thread_info.thread_data.ptr = NULL;
  + root_thread->th.ompt_thread_info.thread_data = ompt_data_none;
  #endif
  root_thread->th.th_root = root;
  if (__kmp_env_consistency_check) {
  @@ -5601,7 +5599,7 @@ void *__kmp_launch_thread(kmp_info_t *this_thr) {
  ompt_data_t *thread_data;
  if (ompt_enabled.enabled) {
  thread_data = &(this_thr->th.ompt_thread_info.thread_data);
  - thread_data->ptr = NULL;
  + *thread_data = ompt_data_none;
  this_thr->th.ompt_thread_info.state = omp_state_overhead;
  this_thr->th.ompt_thread_info.wait_id = 0;
  