1 // RUN: %libomp-compile-and-run | FileCheck %s
2 // RUN: %libomp-compile-and-run | %sort-threads | FileCheck --check-prefix=THREADS %s
3 // REQUIRES: ompt
4 // UNSUPPORTED: gcc-4, gcc-5, gcc-6, gcc-7
5 #include "callback.h"
6 #include <omp.h>
7 #include <unistd.h>
8 
main()9 int main()
10 {
11   omp_set_nested(1);
12   int condition = 0;
13 
14   #pragma omp parallel num_threads(4)
15   {
16     print_ids(0);
17     print_ids(1);
18     //get all implicit task events before starting nested:
19     #pragma omp barrier
20     #pragma omp parallel num_threads(1)
21     {
22       print_ids(0);
23       print_ids(1);
24       print_ids(2);
25       //get all implicit task events before starting nested:
26       #pragma omp barrier
27       #pragma omp parallel num_threads(4)
28       {
29         print_ids(0);
30         print_ids(1);
31         print_ids(2);
32         print_ids(3);
33       OMPT_SIGNAL(condition);
34       OMPT_WAIT(condition,16);
35       }
36       print_fuzzy_address(1);
37     }
38     print_fuzzy_address(2);
39   }
40   print_fuzzy_address(3);
41 
42   // Check if libomp supports the callbacks for this test.
43   // CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_parallel_begin'
44   // CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_parallel_end'
45   // CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_implicit_task'
46   // CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_mutex_acquire'
47   // CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_mutex_acquired'
48   // CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_mutex_released'
49 
50   // CHECK: 0: NULL_POINTER=[[NULL:.*$]]
51 
52   // make sure initial data pointers are null
53   // CHECK-NOT: 0: parallel_data initially not null
54   // CHECK-NOT: 0: task_data initially not null
55   // CHECK-NOT: 0: thread_data initially not null
56   // CHECK: {{^}}[[MASTER_ID:[0-9]+]]: ompt_event_parallel_begin: parent_task_id=[[PARENT_TASK_ID:[0-9]+]], parent_task_frame.exit=[[NULL]], parent_task_frame.reenter={{0x[0-f]+}}, parallel_id=[[PARALLEL_ID:[0-9]+]], requested_team_size=4, codeptr_ra=0x{{[0-f]+}}, invoker=[[PARALLEL_INVOKER:[0-9]+]]
57 
58   // CHECK-DAG: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
59   // CHECK-DAG: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
60 
61   // Note that we cannot ensure that the worker threads have already called barrier_end and implicit_task_end before parallel_end!
62 
63   // CHECK-DAG: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
64   // CHECK-DAG: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
65 
66   // CHECK-DAG: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
67   // CHECK-DAG: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
68 
69   // CHECK-DAG: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
70   // CHECK-DAG: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
71 
72   // CHECK: {{^}}[[MASTER_ID]]: ompt_event_parallel_end: parallel_id=[[PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], invoker=[[PARALLEL_INVOKER]]
73 
74 
75   // THREADS: 0: NULL_POINTER=[[NULL:.*$]]
76   // THREADS: {{^}}[[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=[[TASK_FRAME_ENTER: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]+]]
77 
78   // nested parallel masters
79   // THREADS: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
80   // THREADS: {{^}}[[MASTER_ID]]: task level 0: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame=[[NESTED_TASK_FRAME_EXIT:0x[0-f]+]], reenter_frame=[[NULL]]
81   // THREADS: {{^}}[[MASTER_ID]]: task level 1: parallel_id=[[IMPLICIT_PARALLEL_ID:[0-9]+]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
82 
83   // THREADS: {{^}}[[MASTER_ID]]: ompt_event_parallel_begin: parent_task_id=[[IMPLICIT_TASK_ID]], parent_task_frame.exit=[[NESTED_TASK_FRAME_EXIT]], parent_task_frame.reenter=[[NESTED_TASK_FRAME_ENTER:0x[0-f]+]], parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], requested_team_size=1, codeptr_ra=[[NESTED_RETURN_ADDRESS:0x[0-f]+]]{{[0-f][0-f]}}, invoker=[[PARALLEL_INVOKER]]
84   // THREADS: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[NESTED_IMPLICIT_TASK_ID:[0-9]+]]
85   // THREADS: {{^}}[[MASTER_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[NESTED_IMPLICIT_TASK_ID]], exit_frame=[[NESTED_NESTED_TASK_FRAME_EXIT:0x[0-f]+]], reenter_frame=[[NULL]]
86   // THREADS: {{^}}[[MASTER_ID]]: task level 1: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame=[[NESTED_TASK_FRAME_EXIT]], reenter_frame=[[NESTED_TASK_FRAME_ENTER]]
87   // THREADS: {{^}}[[MASTER_ID]]: task level 2: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
88 
89   // THREADS: {{^}}[[MASTER_ID]]: ompt_event_parallel_begin: parent_task_id=[[NESTED_IMPLICIT_TASK_ID]], parent_task_frame.exit=[[NESTED_NESTED_TASK_FRAME_EXIT]], parent_task_frame.reenter=[[NESTED_NESTED_TASK_FRAME_ENTER:0x[0-f]+]], parallel_id=[[NESTED_NESTED_PARALLEL_ID:[0-9]+]], requested_team_size=4, codeptr_ra=[[NESTED_NESTED_RETURN_ADDRESS:0x[0-f]+]]{{[0-f][0-f]}}, invoker=[[PARALLEL_INVOKER]]
90   // THREADS: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID:[0-9]+]]
91   // THREADS: {{^}}[[MASTER_ID]]: task level 0: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]], exit_frame=[[NESTED_NESTED_NESTED_TASK_FRAME_EXIT:0x[0-f]+]], reenter_frame=[[NULL]]
92   // THREADS: {{^}}[[MASTER_ID]]: task level 1: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[NESTED_IMPLICIT_TASK_ID]], exit_frame=[[NESTED_NESTED_TASK_FRAME_EXIT]], reenter_frame=[[NESTED_NESTED_TASK_FRAME_ENTER]]
93   // THREADS: {{^}}[[MASTER_ID]]: task level 2: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame=[[NESTED_TASK_FRAME_EXIT]], reenter_frame=[[NESTED_TASK_FRAME_ENTER]]
94   // THREADS: {{^}}[[MASTER_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
95   // THREADS-NOT: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_end
96   // THREADS: {{^}}[[MASTER_ID]]: ompt_event_barrier_begin: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]]
97   // THREADS: {{^}}[[MASTER_ID]]: ompt_event_barrier_end: parallel_id={{[0-9]+}}, task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]]
98   // THREADS: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]]
99   // THREADS: {{^}}[[MASTER_ID]]: ompt_event_parallel_end: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_IMPLICIT_TASK_ID]], invoker=[[PARALLEL_INVOKER]]
100   // THREADS: {{^}}[[MASTER_ID]]: fuzzy_address={{.*}}[[NESTED_NESTED_RETURN_ADDRESS]]
101   // THREADS-NOT: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_end
102   // THREADS: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[NESTED_IMPLICIT_TASK_ID]]
103   // THREADS: {{^}}[[MASTER_ID]]: ompt_event_parallel_end: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], invoker=[[PARALLEL_INVOKER]]
104   // THREADS: {{^}}[[MASTER_ID]]: fuzzy_address={{.*}}[[NESTED_RETURN_ADDRESS]]
105   // THREADS-NOT: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_end
106   // THREADS: {{^}}[[MASTER_ID]]: ompt_event_barrier_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
107   // THREADS: {{^}}[[MASTER_ID]]: ompt_event_barrier_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
108   // THREADS: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
109   // THREADS: {{^}}[[MASTER_ID]]: ompt_event_parallel_end: parallel_id=[[PARALLEL_ID]], task_id=[[PARENT_TASK_ID]]
110   // THREADS: {{^}}[[MASTER_ID]]: fuzzy_address={{.*}}[[RETURN_ADDRESS]]
111 
112   // THREADS: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
113   // THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame=[[NESTED_TASK_FRAME_EXIT:0x[0-f]+]], reenter_frame=[[NULL]]
114   // THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
115   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_parallel_begin: parent_task_id=[[IMPLICIT_TASK_ID]], parent_task_frame.exit=[[NESTED_TASK_FRAME_EXIT]], parent_task_frame.reenter=[[NESTED_TASK_FRAME_ENTER:0x[0-f]+]], parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], requested_team_size=1, codeptr_ra=[[NESTED_RETURN_ADDRESS]]{{[0-f][0-f]}}, invoker=[[PARALLEL_INVOKER]]
116   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[NESTED_IMPLICIT_TASK_ID:[0-9]+]]
117   // THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[NESTED_IMPLICIT_TASK_ID]], exit_frame=[[NESTED_NESTED_TASK_FRAME_EXIT:0x[0-f]+]], reenter_frame=[[NULL]]
118   // THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame=[[NESTED_TASK_FRAME_EXIT]], reenter_frame=[[NESTED_TASK_FRAME_ENTER]]
119   // THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
120   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_parallel_begin: parent_task_id=[[NESTED_IMPLICIT_TASK_ID]], parent_task_frame.exit=[[NESTED_NESTED_TASK_FRAME_EXIT]], parent_task_frame.reenter=[[NESTED_NESTED_TASK_FRAME_ENTER:0x[0-f]+]], parallel_id=[[NESTED_NESTED_PARALLEL_ID:[0-9]+]], requested_team_size=4, codeptr_ra=[[NESTED_NESTED_RETURN_ADDRESS]]{{[0-f][0-f]}}, invoker=[[PARALLEL_INVOKER]]
121   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID:[0-9]+]]
122   // THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]], exit_frame=[[NESTED_NESTED_NESTED_TASK_FRAME_EXIT:0x[0-f]+]], reenter_frame=[[NULL]]
123   // THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[NESTED_IMPLICIT_TASK_ID]], exit_frame=[[NESTED_NESTED_TASK_FRAME_EXIT]], reenter_frame=[[NESTED_NESTED_TASK_FRAME_ENTER]]
124   // THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame=[[NESTED_TASK_FRAME_EXIT]], reenter_frame=[[NESTED_TASK_FRAME_ENTER]]
125   // THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
126   // THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
127   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]]
128   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_end: parallel_id={{[0-9]+}}, task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]]
129   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]]
130   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_parallel_end: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_IMPLICIT_TASK_ID]], invoker=[[PARALLEL_INVOKER]]
131   // THREADS: {{^}}[[THREAD_ID]]: fuzzy_address={{.*}}[[NESTED_NESTED_RETURN_ADDRESS]]
132   // THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
133   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[NESTED_IMPLICIT_TASK_ID]]
134   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_parallel_end: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], invoker=[[PARALLEL_INVOKER]]
135   // THREADS: {{^}}[[THREAD_ID]]: fuzzy_address={{.*}}[[NESTED_RETURN_ADDRESS]]
136   // THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
137   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
138   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
139   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
140 
141   // THREADS: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
142   // THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame=[[NESTED_TASK_FRAME_EXIT:0x[0-f]+]], reenter_frame=[[NULL]]
143   // THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
144   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_parallel_begin: parent_task_id=[[IMPLICIT_TASK_ID]], parent_task_frame.exit=[[NESTED_TASK_FRAME_EXIT]], parent_task_frame.reenter=[[NESTED_TASK_FRAME_ENTER:0x[0-f]+]], parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], requested_team_size=1, codeptr_ra=[[NESTED_RETURN_ADDRESS]]{{[0-f][0-f]}}, invoker=[[PARALLEL_INVOKER]]
145   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[NESTED_IMPLICIT_TASK_ID:[0-9]+]]
146   // THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[NESTED_IMPLICIT_TASK_ID]], exit_frame=[[NESTED_NESTED_TASK_FRAME_EXIT:0x[0-f]+]], reenter_frame=[[NULL]]
147   // THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame=[[NESTED_TASK_FRAME_EXIT]], reenter_frame=[[NESTED_TASK_FRAME_ENTER]]
148   // THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
149   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_parallel_begin: parent_task_id=[[NESTED_IMPLICIT_TASK_ID]], parent_task_frame.exit=[[NESTED_NESTED_TASK_FRAME_EXIT]], parent_task_frame.reenter=[[NESTED_NESTED_TASK_FRAME_ENTER:0x[0-f]+]], parallel_id=[[NESTED_NESTED_PARALLEL_ID:[0-9]+]], requested_team_size=4, codeptr_ra=[[NESTED_NESTED_RETURN_ADDRESS]]{{[0-f][0-f]}}, invoker=[[PARALLEL_INVOKER]]
150   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID:[0-9]+]]
151   // THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]], exit_frame=[[NESTED_NESTED_NESTED_TASK_FRAME_EXIT:0x[0-f]+]], reenter_frame=[[NULL]]
152   // THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[NESTED_IMPLICIT_TASK_ID]], exit_frame=[[NESTED_NESTED_TASK_FRAME_EXIT]], reenter_frame=[[NESTED_NESTED_TASK_FRAME_ENTER]]
153   // THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame=[[NESTED_TASK_FRAME_EXIT]], reenter_frame=[[NESTED_TASK_FRAME_ENTER]]
154   // THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
155   // THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
156   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]]
157   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_end: parallel_id={{[0-9]+}}, task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]]
158   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]]
159   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_parallel_end: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_IMPLICIT_TASK_ID]], invoker=[[PARALLEL_INVOKER]]
160   // THREADS: {{^}}[[THREAD_ID]]: fuzzy_address={{.*}}[[NESTED_NESTED_RETURN_ADDRESS]]
161   // THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
162   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[NESTED_IMPLICIT_TASK_ID]]
163   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_parallel_end: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], invoker=[[PARALLEL_INVOKER]]
164   // THREADS: {{^}}[[THREAD_ID]]: fuzzy_address={{.*}}[[NESTED_RETURN_ADDRESS]]
165   // THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
166   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
167   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
168   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
169 
170   // THREADS: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
171   // THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame=[[NESTED_TASK_FRAME_EXIT:0x[0-f]+]], reenter_frame=[[NULL]]
172   // THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
173   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_parallel_begin: parent_task_id=[[IMPLICIT_TASK_ID]], parent_task_frame.exit=[[NESTED_TASK_FRAME_EXIT]], parent_task_frame.reenter=[[NESTED_TASK_FRAME_ENTER:0x[0-f]+]], parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], requested_team_size=1, codeptr_ra=[[NESTED_RETURN_ADDRESS]]{{[0-f][0-f]}}, invoker=[[PARALLEL_INVOKER]]
174   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[NESTED_IMPLICIT_TASK_ID:[0-9]+]]
175   // THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[NESTED_IMPLICIT_TASK_ID]], exit_frame=[[NESTED_NESTED_TASK_FRAME_EXIT:0x[0-f]+]], reenter_frame=[[NULL]]
176   // THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame=[[NESTED_TASK_FRAME_EXIT]], reenter_frame=[[NESTED_TASK_FRAME_ENTER]]
177   // THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
178   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_parallel_begin: parent_task_id=[[NESTED_IMPLICIT_TASK_ID]], parent_task_frame.exit=[[NESTED_NESTED_TASK_FRAME_EXIT]], parent_task_frame.reenter=[[NESTED_NESTED_TASK_FRAME_ENTER:0x[0-f]+]], parallel_id=[[NESTED_NESTED_PARALLEL_ID:[0-9]+]], requested_team_size=4, codeptr_ra=[[NESTED_NESTED_RETURN_ADDRESS]]{{[0-f][0-f]}}, invoker=[[PARALLEL_INVOKER]]
179   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID:[0-9]+]]
180   // THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]], exit_frame=[[NESTED_NESTED_NESTED_TASK_FRAME_EXIT:0x[0-f]+]], reenter_frame=[[NULL]]
181   // THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[NESTED_IMPLICIT_TASK_ID]], exit_frame=[[NESTED_NESTED_TASK_FRAME_EXIT]], reenter_frame=[[NESTED_NESTED_TASK_FRAME_ENTER]]
182   // THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame=[[NESTED_TASK_FRAME_EXIT]], reenter_frame=[[NESTED_TASK_FRAME_ENTER]]
183   // THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
184   // THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
185   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]]
186   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_end: parallel_id={{[0-9]+}}, task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]]
187   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]]
188   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_parallel_end: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_IMPLICIT_TASK_ID]], invoker=[[PARALLEL_INVOKER]]
189   // THREADS: {{^}}[[THREAD_ID]]: fuzzy_address={{.*}}[[NESTED_NESTED_RETURN_ADDRESS]]
190   // THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
191   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[NESTED_IMPLICIT_TASK_ID]]
192   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_parallel_end: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], invoker=[[PARALLEL_INVOKER]]
193   // THREADS: {{^}}[[THREAD_ID]]: fuzzy_address={{.*}}[[NESTED_RETURN_ADDRESS]]
194   // THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
195   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
196   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
197   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
198 
199   // nested parallel worker threads
200   // THREADS: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
201   // THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame={{0x[0-f]+}}, reenter_frame=[[NULL]]
202   // can't reliably tell which parallel region is the parent...
203   // THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
204   // THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
205   // THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
206   // THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
207   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
208   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
209   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
210 
211   // THREADS: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
212   // THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame={{0x[0-f]+}}, reenter_frame=[[NULL]]
213   // can't reliably tell which parallel region is the parent...
214   // THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
215   // THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
216   // THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
217   // THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
218   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
219   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
220   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
221 
222   // THREADS: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
223   // THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame={{0x[0-f]+}}, reenter_frame=[[NULL]]
224   // can't reliably tell which parallel region is the parent...
225   // THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
226   // THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
227   // THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
228   // THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
229   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
230   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
231   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
232 
233   // THREADS: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
234   // THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame={{0x[0-f]+}}, reenter_frame=[[NULL]]
235   // can't reliably tell which parallel region is the parent...
236   // THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
237   // THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
238   // THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
239   // THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
240   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
241   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
242   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
243 
244   // THREADS: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
245   // THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame={{0x[0-f]+}}, reenter_frame=[[NULL]]
246   // can't reliably tell which parallel region is the parent...
247   // THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
248   // THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
249   // THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
250   // THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
251   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
252   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
253   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
254 
255   // THREADS: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
256   // THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame={{0x[0-f]+}}, reenter_frame=[[NULL]]
257   // can't reliably tell which parallel region is the parent...
258   // THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
259   // THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
260   // THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
261   // THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
262   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
263   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
264   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
265 
266   // THREADS: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
267   // THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame={{0x[0-f]+}}, reenter_frame=[[NULL]]
268   // can't reliably tell which parallel region is the parent...
269   // THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
270   // THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
271   // THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
272   // THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
273   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
274   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
275   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
276 
277   // THREADS: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
278   // THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame={{0x[0-f]+}}, reenter_frame=[[NULL]]
279   // can't reliably tell which parallel region is the parent...
280   // THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
281   // THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
282   // THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
283   // THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
284   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
285   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
286   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
287 
288   // THREADS: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
289   // THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame={{0x[0-f]+}}, reenter_frame=[[NULL]]
290   // can't reliably tell which parallel region is the parent...
291   // THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
292   // THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
293   // THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
294   // THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
295   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
296   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
297   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
298 
299   // THREADS: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
300   // THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame={{0x[0-f]+}}, reenter_frame=[[NULL]]
301   // can't reliably tell which parallel region is the parent...
302   // THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
303   // THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
304   // THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
305   // THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
306   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
307   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
308   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
309 
310   // THREADS: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
311   // THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame={{0x[0-f]+}}, reenter_frame=[[NULL]]
312   // can't reliably tell which parallel region is the parent...
313   // THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
314   // THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
315   // THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
316   // THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
317   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
318   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
319   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
320 
321   // THREADS: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
322   // THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame={{0x[0-f]+}}, reenter_frame=[[NULL]]
323   // can't reliably tell which parallel region is the parent...
324   // THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
325   // THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
326   // THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
327   // THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
328   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
329   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
330   // THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
331 
332 
333   return 0;
334 }
335