Files
clang-p2996/openmp/runtime/test/ompt/parallel/nested_lwt.c
Rainer Orth 1b4f161978 [OpenMP][test] Make %p 0x prefix optional (#138514)
Testing `openmp` on Solaris/amd64 shows a large number of failures, all
due to the same issue:

```
# .---command stderr------------
# | openmp/runtime/test/ompt/misc/interoperability.cpp:67:16: error: CHECK-SAME: expected string not found in input
# | // CHECK-SAME: parent_task_frame.reenter={{0x[0-f]+}}
# |                ^
# | <stdin>:5:101: note: scanning from here
# | 281474976710658: ompt_event_parallel_begin: parent_task_id=281474976710659, parent_task_frame.exit=0, parent_task_frame.reenter=7fffbedffe90, parallel_id=281474976710661, requested_team_size=2, codeptr_ra=408b8e, invoker=2
```

The testsuite expects pointers to be printed with a `0x` prefix when
using the `%p` format, while Solaris `libc` just prints them in hex
without a prefix.

However, this difference is completely benign. ISO C (up to C23,
7.23.6.1) states

```
p	The argument shall be a pointer to void or a pointer to a character
	type. The value of the pointer is converted to a sequence of printing
	characters, in an implementation-defined manner.
```

I saw two ways around this:

- replace every instance of `%p` with a macro (`KMP_PTR_FMT`, defined as
`"%p"` or `"0x%p" as appropriate), or
- adjust the testsuite to make the `0x` prefix optional

The second route seemed less intrusive and more readable, so that's what
this patch does. While large, it's also completely mechanical.

Tested on `amd64-pc-solaris2.11` and `x86_64-pc-linux-gnu`.
2025-05-10 09:50:08 +02:00

336 lines
36 KiB
C

// RUN: %libomp-compile-and-run | FileCheck %s
// RUN: %libomp-compile-and-run | %sort-threads | FileCheck --check-prefix=THREADS %s
// REQUIRES: ompt
// UNSUPPORTED: gcc-4, gcc-5, gcc-6, gcc-7
#include "callback.h"
#include <omp.h>
#include <unistd.h>
int main()
{
omp_set_nested(1);
int condition = 0;
#pragma omp parallel num_threads(4)
{
print_ids(0);
print_ids(1);
//get all implicit task events before starting nested:
#pragma omp barrier
#pragma omp parallel num_threads(1)
{
print_ids(0);
print_ids(1);
print_ids(2);
//get all implicit task events before starting nested:
#pragma omp barrier
#pragma omp parallel num_threads(4)
{
print_ids(0);
print_ids(1);
print_ids(2);
print_ids(3);
OMPT_SIGNAL(condition);
OMPT_WAIT(condition,16);
}
print_fuzzy_address(1);
}
print_fuzzy_address(2);
}
print_fuzzy_address(3);
// clang-format off
// Check if libomp supports the callbacks for this test.
// 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 'ompt_callback_mutex_acquire'
// CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_mutex_acquired'
// CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_mutex_released'
// CHECK: 0: NULL_POINTER=[[NULL:.*$]]
// make sure initial data pointers are null
// CHECK-NOT: 0: parallel_data initially not null
// CHECK-NOT: 0: task_data initially not null
// CHECK-NOT: 0: thread_data initially not null
// CHECK: {{^}}[[MASTER_ID:[0-9]+]]: ompt_event_parallel_begin: parent_task_id=[[PARENT_TASK_ID:[0-9]+]], parent_task_frame.exit=[[NULL]], parent_task_frame.reenter={{(0x)?[0-f]+}}, parallel_id=[[PARALLEL_ID:[0-9]+]], requested_team_size=4, codeptr_ra={{(0x)?[0-f]+}}, invoker=[[PARALLEL_INVOKER:[0-9]+]]
// CHECK-DAG: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// CHECK-DAG: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
// Note that we cannot ensure that the worker threads have already called barrier_end and implicit_task_end before parallel_end!
// CHECK-DAG: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// CHECK-DAG: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// CHECK-DAG: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// CHECK-DAG: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// CHECK-DAG: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// CHECK-DAG: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// CHECK: {{^}}[[MASTER_ID]]: ompt_event_parallel_end: parallel_id=[[PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], invoker=[[PARALLEL_INVOKER]]
// THREADS: 0: NULL_POINTER=[[NULL:.*$]]
// 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]+]]
// nested parallel masters
// 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]], exit_frame=[[NESTED_TASK_FRAME_EXIT:(0x)?[0-f]+]], reenter_frame=[[NULL]]
// 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]]
// 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]]
// THREADS: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[NESTED_IMPLICIT_TASK_ID:[0-9]+]]
// 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]]
// 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]]
// THREADS: {{^}}[[MASTER_ID]]: task level 2: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
// 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]]
// THREADS: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID:[0-9]+]]
// 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]]
// 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]]
// 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]]
// THREADS: {{^}}[[MASTER_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
// THREADS-NOT: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[MASTER_ID]]: ompt_event_barrier_implicit_parallel_begin: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[MASTER_ID]]: ompt_event_barrier_implicit_parallel_end: parallel_id={{[0-9]+}}, task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[MASTER_ID]]: ompt_event_parallel_end: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_IMPLICIT_TASK_ID]], invoker=[[PARALLEL_INVOKER]]
// THREADS: {{^}}[[MASTER_ID]]: fuzzy_address={{.*}}[[NESTED_NESTED_RETURN_ADDRESS]]
// THREADS-NOT: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[NESTED_IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[MASTER_ID]]: ompt_event_parallel_end: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], invoker=[[PARALLEL_INVOKER]]
// THREADS: {{^}}[[MASTER_ID]]: fuzzy_address={{.*}}[[NESTED_RETURN_ADDRESS]]
// THREADS-NOT: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[MASTER_ID]]: ompt_event_barrier_implicit_parallel_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[MASTER_ID]]: ompt_event_barrier_implicit_parallel_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[MASTER_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[MASTER_ID]]: ompt_event_parallel_end: parallel_id=[[PARALLEL_ID]], task_id=[[PARENT_TASK_ID]]
// THREADS: {{^}}[[MASTER_ID]]: fuzzy_address={{.*}}[[RETURN_ADDRESS]]
// THREADS: {{^}}[[THREAD_ID:[0-9]+]]: 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]], exit_frame=[[NESTED_TASK_FRAME_EXIT:(0x)?[0-f]+]], reenter_frame=[[NULL]]
// THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
// 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]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[NESTED_IMPLICIT_TASK_ID:[0-9]+]]
// 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]]
// 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]]
// THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
// 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]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID:[0-9]+]]
// 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]]
// 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]]
// 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]]
// THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
// THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_begin: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_end: parallel_id={{[0-9]+}}, task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_parallel_end: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_IMPLICIT_TASK_ID]], invoker=[[PARALLEL_INVOKER]]
// THREADS: {{^}}[[THREAD_ID]]: fuzzy_address={{.*}}[[NESTED_NESTED_RETURN_ADDRESS]]
// THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[NESTED_IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_parallel_end: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], invoker=[[PARALLEL_INVOKER]]
// THREADS: {{^}}[[THREAD_ID]]: fuzzy_address={{.*}}[[NESTED_RETURN_ADDRESS]]
// THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_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_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]], exit_frame=[[NESTED_TASK_FRAME_EXIT:(0x)?[0-f]+]], reenter_frame=[[NULL]]
// THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
// 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]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[NESTED_IMPLICIT_TASK_ID:[0-9]+]]
// 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]]
// 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]]
// THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
// 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]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID:[0-9]+]]
// 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]]
// 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]]
// 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]]
// THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
// THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_begin: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_end: parallel_id={{[0-9]+}}, task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_parallel_end: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_IMPLICIT_TASK_ID]], invoker=[[PARALLEL_INVOKER]]
// THREADS: {{^}}[[THREAD_ID]]: fuzzy_address={{.*}}[[NESTED_NESTED_RETURN_ADDRESS]]
// THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[NESTED_IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_parallel_end: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], invoker=[[PARALLEL_INVOKER]]
// THREADS: {{^}}[[THREAD_ID]]: fuzzy_address={{.*}}[[NESTED_RETURN_ADDRESS]]
// THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_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_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]], exit_frame=[[NESTED_TASK_FRAME_EXIT:(0x)?[0-f]+]], reenter_frame=[[NULL]]
// THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
// 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]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[NESTED_IMPLICIT_TASK_ID:[0-9]+]]
// 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]]
// 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]]
// THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
// 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]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID:[0-9]+]]
// 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]]
// 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]]
// 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]]
// THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
// THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_begin: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_end: parallel_id={{[0-9]+}}, task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[NESTED_NESTED_IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_parallel_end: parallel_id=[[NESTED_NESTED_PARALLEL_ID]], task_id=[[NESTED_IMPLICIT_TASK_ID]], invoker=[[PARALLEL_INVOKER]]
// THREADS: {{^}}[[THREAD_ID]]: fuzzy_address={{.*}}[[NESTED_NESTED_RETURN_ADDRESS]]
// THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end: parallel_id={{[0-9]+}}, task_id=[[NESTED_IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_parallel_end: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], invoker=[[PARALLEL_INVOKER]]
// THREADS: {{^}}[[THREAD_ID]]: fuzzy_address={{.*}}[[NESTED_RETURN_ADDRESS]]
// THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_begin: parallel_id=[[PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_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]]
// nested parallel worker threads
// THREADS: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame={{(0x)?[0-f]+}}, reenter_frame=[[NULL]]
// can't reliably tell which parallel region is the parent...
// THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
// THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
// THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
// THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_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_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame={{(0x)?[0-f]+}}, reenter_frame=[[NULL]]
// can't reliably tell which parallel region is the parent...
// THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
// THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
// THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
// THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_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_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame={{(0x)?[0-f]+}}, reenter_frame=[[NULL]]
// can't reliably tell which parallel region is the parent...
// THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
// THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
// THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
// THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_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_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame={{(0x)?[0-f]+}}, reenter_frame=[[NULL]]
// can't reliably tell which parallel region is the parent...
// THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
// THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
// THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
// THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_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_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame={{(0x)?[0-f]+}}, reenter_frame=[[NULL]]
// can't reliably tell which parallel region is the parent...
// THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
// THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
// THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
// THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_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_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame={{(0x)?[0-f]+}}, reenter_frame=[[NULL]]
// can't reliably tell which parallel region is the parent...
// THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
// THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
// THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
// THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_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_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame={{(0x)?[0-f]+}}, reenter_frame=[[NULL]]
// can't reliably tell which parallel region is the parent...
// THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
// THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
// THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
// THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_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_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame={{(0x)?[0-f]+}}, reenter_frame=[[NULL]]
// can't reliably tell which parallel region is the parent...
// THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
// THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
// THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
// THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_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_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame={{(0x)?[0-f]+}}, reenter_frame=[[NULL]]
// can't reliably tell which parallel region is the parent...
// THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
// THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
// THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
// THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_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_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame={{(0x)?[0-f]+}}, reenter_frame=[[NULL]]
// can't reliably tell which parallel region is the parent...
// THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
// THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
// THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
// THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_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_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame={{(0x)?[0-f]+}}, reenter_frame=[[NULL]]
// can't reliably tell which parallel region is the parent...
// THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
// THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
// THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
// THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_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_implicit_task_begin: parallel_id=[[NESTED_PARALLEL_ID:[0-9]+]], task_id=[[IMPLICIT_TASK_ID:[0-9]+]]
// THREADS: {{^}}[[THREAD_ID]]: task level 0: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]], exit_frame={{(0x)?[0-f]+}}, reenter_frame=[[NULL]]
// can't reliably tell which parallel region is the parent...
// THREADS: {{^}}[[THREAD_ID]]: task level 1: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
// THREADS: {{^}}[[THREAD_ID]]: task level 2: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}
// THREADS: {{^}}[[THREAD_ID]]: task level 3: parallel_id=[[IMPLICIT_PARALLEL_ID]], task_id=[[PARENT_TASK_ID]], exit_frame=[[NULL]], reenter_frame=[[TASK_FRAME_ENTER]]
// THREADS-NOT: {{^}}[[THREAD_ID]]: ompt_event_implicit_task_end
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_begin: parallel_id=[[NESTED_PARALLEL_ID]], task_id=[[IMPLICIT_TASK_ID]]
// THREADS: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_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]]
// clang-format on
return 0;
}