[OMPT] Fix parallel_data in implicit barrier-end

This is required to be NULL for implicit barriers at the end of a
parallel region. Noticed in review of D43191.

Differential Revision: https://reviews.llvm.org/D43308

llvm-svn: 325922
This commit is contained in:
Jonas Hahnfeld 2018-02-23 16:46:25 +00:00
parent 5e44069857
commit 82768d0ba1
4 changed files with 131 additions and 94 deletions

View File

@ -1883,34 +1883,31 @@ void __kmp_fork_barrier(int gtid, int tid) {
}
#if OMPT_SUPPORT
if (ompt_enabled.enabled) {
if (this_thr->th.ompt_thread_info.state ==
omp_state_wait_barrier_implicit) {
int ds_tid = this_thr->th.th_info.ds.ds_tid;
ompt_data_t *tId = (team) ? OMPT_CUR_TASK_DATA(this_thr)
: &(this_thr->th.ompt_thread_info.task_data);
this_thr->th.ompt_thread_info.state = omp_state_overhead;
if (ompt_enabled.enabled &&
this_thr->th.ompt_thread_info.state == omp_state_wait_barrier_implicit) {
int ds_tid = this_thr->th.th_info.ds.ds_tid;
ompt_data_t *task_data = (team)
? OMPT_CUR_TASK_DATA(this_thr)
: &(this_thr->th.ompt_thread_info.task_data);
this_thr->th.ompt_thread_info.state = omp_state_overhead;
#if OMPT_OPTIONAL
void *codeptr = NULL;
if (KMP_MASTER_TID(ds_tid) &&
(ompt_callbacks.ompt_callback(ompt_callback_sync_region_wait) ||
ompt_callbacks.ompt_callback(ompt_callback_sync_region)))
codeptr = team->t.ompt_team_info.master_return_address;
if (ompt_enabled.ompt_callback_sync_region_wait) {
ompt_callbacks.ompt_callback(ompt_callback_sync_region_wait)(
ompt_sync_region_barrier, ompt_scope_end, NULL, tId, codeptr);
}
if (ompt_enabled.ompt_callback_sync_region) {
ompt_callbacks.ompt_callback(ompt_callback_sync_region)(
ompt_sync_region_barrier, ompt_scope_end, NULL, tId, codeptr);
}
void *codeptr = NULL;
if (KMP_MASTER_TID(ds_tid) &&
(ompt_callbacks.ompt_callback(ompt_callback_sync_region_wait) ||
ompt_callbacks.ompt_callback(ompt_callback_sync_region)))
codeptr = team->t.ompt_team_info.master_return_address;
if (ompt_enabled.ompt_callback_sync_region_wait) {
ompt_callbacks.ompt_callback(ompt_callback_sync_region_wait)(
ompt_sync_region_barrier, ompt_scope_end, NULL, task_data, codeptr);
}
if (ompt_enabled.ompt_callback_sync_region) {
ompt_callbacks.ompt_callback(ompt_callback_sync_region)(
ompt_sync_region_barrier, ompt_scope_end, NULL, task_data, codeptr);
}
#endif
if (!KMP_MASTER_TID(ds_tid) && ompt_enabled.ompt_callback_implicit_task) {
ompt_callbacks.ompt_callback(ompt_callback_implicit_task)(
ompt_scope_end, NULL, tId, 0, ds_tid);
}
// return to idle state
this_thr->th.ompt_thread_info.state = omp_state_overhead;
if (!KMP_MASTER_TID(ds_tid) && ompt_enabled.ompt_callback_implicit_task) {
ompt_callbacks.ompt_callback(ompt_callback_implicit_task)(
ompt_scope_end, NULL, task_data, 0, ds_tid);
}
}
#endif

View File

@ -7164,10 +7164,10 @@ void __kmp_internal_join(ident_t *id, int gtid, kmp_team_t *team) {
__kmp_join_barrier(gtid); /* wait for everyone */
#if OMPT_SUPPORT
int ds_tid = this_thr->th.th_info.ds.ds_tid;
if (this_thr->th.ompt_thread_info.state == omp_state_wait_barrier_implicit) {
ompt_data_t *tId = OMPT_CUR_TASK_DATA(this_thr);
ompt_data_t *pId = OMPT_CUR_TEAM_DATA(this_thr);
if (ompt_enabled.enabled &&
this_thr->th.ompt_thread_info.state == omp_state_wait_barrier_implicit) {
int ds_tid = this_thr->th.th_info.ds.ds_tid;
ompt_data_t *task_data = OMPT_CUR_TASK_DATA(this_thr);
this_thr->th.ompt_thread_info.state = omp_state_overhead;
#if OMPT_OPTIONAL
void *codeptr = NULL;
@ -7178,19 +7178,17 @@ void __kmp_internal_join(ident_t *id, int gtid, kmp_team_t *team) {
if (ompt_enabled.ompt_callback_sync_region_wait) {
ompt_callbacks.ompt_callback(ompt_callback_sync_region_wait)(
ompt_sync_region_barrier, ompt_scope_end, pId, tId, codeptr);
ompt_sync_region_barrier, ompt_scope_end, NULL, task_data, codeptr);
}
if (ompt_enabled.ompt_callback_sync_region) {
ompt_callbacks.ompt_callback(ompt_callback_sync_region)(
ompt_sync_region_barrier, ompt_scope_end, pId, tId, codeptr);
ompt_sync_region_barrier, ompt_scope_end, NULL, task_data, codeptr);
}
#endif
if (!KMP_MASTER_TID(ds_tid) && ompt_enabled.ompt_callback_implicit_task) {
ompt_callbacks.ompt_callback(ompt_callback_implicit_task)(
ompt_scope_end, NULL, tId, 0, ds_tid);
ompt_scope_end, NULL, task_data, 0, ds_tid);
}
// return to idle state
this_thr->th.ompt_thread_info.state = omp_state_overhead;
}
#endif

View File

@ -1,11 +1,11 @@
// RUN: %libomp-compile-and-run | FileCheck %s
// RUN: %libomp-compile-and-run | %sort-threads | FileCheck --check-prefix=THREADS %s
// RUN: %libomp-compile-and-run | %sort-threads \
// RUN: | FileCheck --check-prefix=THREADS %s
// REQUIRES: ompt
#include "callback.h"
int main()
{
#pragma omp parallel num_threads(4)
int main() {
#pragma omp parallel num_threads(4)
{
print_ids(0);
print_ids(1);
@ -13,78 +13,120 @@ int main()
print_fuzzy_address(1);
// Check if libomp supports the callbacks for this test.
// CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_thread_begin'
// CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_thread_end'
// CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_parallel_begin'
// CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_parallel_end'
// CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_implicit_task'
// CHECK-NOT: {{^}}0: Could not register callback
// CHECK: 0: NULL_POINTER=[[NULL:.*$]]
// make sure initial data pointers are null
// CHECK-NOT: 0: parallel_data initially not null
// CHECK-NOT: 0: task_data initially not null
// CHECK-NOT: 0: thread_data initially not null
// CHECK: {{^}}[[MASTER_ID:[0-9]+]]: ompt_event_parallel_begin: parent_task_id=[[PARENT_TASK_ID:[0-9]+]], parent_task_frame.exit=[[NULL]], parent_task_frame.reenter={{0x[0-f]+}}, parallel_id=[[PARALLEL_ID:[0-9]+]], requested_team_size=4, codeptr_ra=[[RETURN_ADDRESS:0x[0-f]+]]{{[0-f][0-f]}}, invoker=[[PARALLEL_INVOKER:[0-9]+]]
// Only check callback names, arguments are verified in THREADS below.
// CHECK: {{^}}[[MASTER_ID:[0-9]+]]: ompt_event_parallel_begin
// CHECK-DAG: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// CHECK-DAG: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
// CHECK-DAG: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_begin
// CHECK-DAG: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_end
// Note that we cannot ensure that the worker threads have already called barrier_end and implicit_task_end before parallel_end!
// Note that we cannot ensure that the worker threads have already called
// barrier_end and implicit_task_end before parallel_end!
// CHECK-DAG: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// CHECK-DAG: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// CHECK-DAG: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin
// CHECK-DAG: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin
// CHECK-DAG: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// CHECK-DAG: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// CHECK-DAG: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin
// CHECK-DAG: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin
// CHECK-DAG: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// CHECK-DAG: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// CHECK: {{^}}[[MASTER_ID]]: ompt_event_parallel_end: parallel_id=[[PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], invoker=[[PARALLEL_INVOKER]], codeptr_ra=[[RETURN_ADDRESS]]{{[0-f][0-f]}}
// CHECK: {{^}}[[MASTER_ID]]: fuzzy_address={{.*}}[[RETURN_ADDRESS]]
// CHECK-DAG: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin
// CHECK-DAG: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin
// CHECK: {{^}}[[MASTER_ID]]: ompt_event_parallel_end
// THREADS: 0: NULL_POINTER=[[NULL:.*$]]
// THREADS: {{^}}[[MASTER_ID:[0-9]+]]: ompt_event_thread_begin: thread_type=ompt_thread_initial=1, thread_id=[[MASTER_ID]]
// THREADS: {{^}}[[MASTER_ID]]: ompt_event_parallel_begin: parent_task_id=[[PARENT_TASK_ID:[0-9]+]], parent_task_frame.exit=[[NULL]], parent_task_frame.reenter={{0x[0-f]+}}, parallel_id=[[PARALLEL_ID:[0-9]+]], requested_team_size=4, codeptr_ra=[[RETURN_ADDRESS:0x[0-f]+]]{{[0-f][0-f]}}, invoker={{.*}}
// THREADS: {{^}}[[MASTER_ID:[0-9]+]]: ompt_event_thread_begin
// THREADS-SAME: thread_type=ompt_thread_initial=1, thread_id=[[MASTER_ID]]
// THREADS: {{^}}[[MASTER_ID]]: ompt_event_parallel_begin
// THREADS-SAME: parent_task_id=[[PARENT_TASK_ID:[0-9]+]]
// THREADS-SAME: parent_task_frame.exit=[[NULL]]
// THREADS-SAME: parent_task_frame.reenter={{0x[0-f]+}}
// THREADS-SAME: parallel_id=[[PARALLEL_ID:[0-9]+]], requested_team_size=4
// THREADS-SAME: codeptr_ra=[[RETURN_ADDRESS:0x[0-f]+]]{{[0-f][0-f]}}
// THREADS: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// THREADS: {{^}}[[MASTER_ID]]: task level 0: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[MASTER_ID]]: task level 1: parallel_id=[[IMPLICIT_PARALLEL_ID:[0-9]+]], task_id=[[PARENT_TASK_ID]]
// THREADS-NOT: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[MASTER_ID]]: ompt_event_barrier_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], codeptr_ra=[[RETURN_ADDRESS]]{{[0-f][0-f]}}
// THREADS: {{^}}[[MASTER_ID]]: ompt_event_barrier_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]], codeptr_ra=[[RETURN_ADDRESS]]{{[0-f][0-f]}}
// THREADS: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_begin
// THREADS-SAME: parallel_id=[[PARALLEL_ID]]
// THREADS-SAME: task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// THREADS: {{^}}[[MASTER_ID]]: task level 0
// THREADS-SAME: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[MASTER_ID]]: task level 1
// THREADS-SAME: parallel_id=[[IMPLICIT_PARALLEL_ID:[0-9]+]]
// THREADS-SAME: task_id=[[PARENT_TASK_ID]]
// THREADS-NOT: ompt_event_implicit_task_end
// THREADS: {{^}}[[MASTER_ID]]: ompt_event_barrier_begin
// THREADS-SAME: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS-SAME: codeptr_ra=[[RETURN_ADDRESS]]{{[0-f][0-f]}}
// THREADS: {{^}}[[MASTER_ID]]: ompt_event_barrier_end
// parallel_id is 0 because the region ended in the barrier!
// THREADS-SAME: parallel_id=0, task_id=[[IMPLICIT_TASK_ID]]
// THREADS-SAME: codeptr_ra=[[RETURN_ADDRESS]]{{[0-f][0-f]}}
// THREADS: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_end
// THREADS-SAME: parallel_id=0, task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_thread_begin: thread_type=ompt_thread_worker=2, thread_id=[[THREAD_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]]
// THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_thread_begin
// THREADS-SAME: thread_type=ompt_thread_worker=2, thread_id=[[THREAD_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_begin
// THREADS-SAME: parallel_id=[[PARALLEL_ID]]
// THREADS-SAME: task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// THREADS: {{^}}[[THREAD_ID]]: task level 0
// THREADS-SAME: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: task level 1
// THREADS-SAME: parallel_id=[[IMPLICIT_PARALLEL_ID]]
// THREADS-SAME: task_id=[[PARENT_TASK_ID]]
// THREADS-NOT: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin
// THREADS-SAME: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_end
// parallel_id is 0 because the region ended in the barrier!
// THREADS-SAME: parallel_id=0, task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS-SAME: parallel_id=0, task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_thread_begin: thread_type=ompt_thread_worker=2, thread_id=[[THREAD_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]]
// THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_thread_begin
// THREADS-SAME: thread_type=ompt_thread_worker=2, thread_id=[[THREAD_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_begin
// THREADS-SAME: parallel_id=[[PARALLEL_ID]]
// THREADS-SAME: task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// THREADS: {{^}}[[THREAD_ID]]: task level 0
// THREADS-SAME: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: task level 1
// THREADS-SAME: parallel_id=[[IMPLICIT_PARALLEL_ID]]
// THREADS-SAME: task_id=[[PARENT_TASK_ID]]
// THREADS-NOT: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin
// THREADS-SAME: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_end
// parallel_id is 0 because the region ended in the barrier!
// THREADS-SAME: parallel_id=0, task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS-SAME: parallel_id=0, task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_thread_begin: thread_type=ompt_thread_worker=2, thread_id=[[THREAD_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]]
// THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_thread_begin
// THREADS-SAME: thread_type=ompt_thread_worker=2, thread_id=[[THREAD_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_begin
// THREADS-SAME: parallel_id=[[PARALLEL_ID]]
// THREADS-SAME: task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// THREADS: {{^}}[[THREAD_ID]]: task level 0
// THREADS-SAME: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: task level 1
// THREADS-SAME: parallel_id=[[IMPLICIT_PARALLEL_ID]]
// THREADS-SAME: task_id=[[PARENT_TASK_ID]]
// THREADS-NOT: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin
// THREADS-SAME: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_end
// parallel_id is 0 because the region ended in the barrier!
// THREADS-SAME: parallel_id=0, task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS-SAME: parallel_id=0, task_id=[[IMPLICIT_TASK_ID]]
return 0;
}

View File

@ -119,8 +119,8 @@ int main() {
// CHECK-SAME: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// CHECK-SAME: exit_frame=[[NULL]], reenter_frame=[[NULL]]
// CHECK: {{^}}[[MASTER_ID]]: ompt_event_barrier_end
// FIXME: parallel_id should be 0 because the region ended in the barrier!
// CHECK-SAME: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// parallel_id is 0 because the region ended in the barrier!
// CHECK-SAME: parallel_id=0, task_id=[[IMPLICIT_TASK_ID]]
// CHECK: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_end
// CHECK-SAME: parallel_id=0, task_id=[[IMPLICIT_TASK_ID]]