single.c

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// RUN: %libomp-compile-and-run | %sort-threads | FileCheck %s
// REQUIRES: ompt
// UNSUPPORTED: gcc-4, gcc-5, gcc-6, gcc-7
#include "callback.h"
#include <omp.h>
 
int main()
{
  int x = 0;
 
  #pragma omp parallel num_threads(2)
  {
    //implicit barrier at end of single
    #pragma omp single
    {
      x++;
    }
    print_fuzzy_address();
    //critical section to avoid merge of two barriers into one
    #pragma omp critical
    {
      x++;
    }
  }
 
  // clang-format off
  // Check if libomp supports the callbacks for this test.
  // CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_sync_region'
  // CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_sync_region_wait'
 
  // CHECK: 0: NULL_POINTER=[[NULL:.*$]]
 
  // master thread implicit barrier at single end
  // CHECK: {{^}}[[MASTER_ID:[0-9]+]]: ompt_event_barrier_implicit_workshare_begin: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}, codeptr_ra=[[RETURN_ADDRESS:0x[0-f]+]]{{[0-f][0-f]}}
  // CHECK: {{^}}[[MASTER_ID]]: ompt_event_wait_barrier_implicit_workshare_begin: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}, codeptr_ra=[[RETURN_ADDRESS]]{{[0-f][0-f]}}
  // CHECK: {{^}}[[MASTER_ID]]: ompt_event_wait_barrier_implicit_workshare_end: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}, codeptr_ra=[[RETURN_ADDRESS]]{{[0-f][0-f]}}
  // CHECK: {{^}}[[MASTER_ID]]: ompt_event_barrier_implicit_workshare_end: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}, codeptr_ra=[[RETURN_ADDRESS]]{{[0-f][0-f]}}
  // CHECK: {{^}}[[MASTER_ID]]: fuzzy_address={{.*}}[[RETURN_ADDRESS]]
 
  // master thread implicit barrier at parallel end
  // CHECK: {{^}}[[MASTER_ID]]: ompt_event_barrier_implicit_parallel_begin: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}, codeptr_ra={{0x[0-f]+}}
  // CHECK: {{^}}[[MASTER_ID]]: ompt_event_wait_barrier_implicit_parallel_begin: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}, codeptr_ra={{0x[0-f]+}}
  // CHECK: {{^}}[[MASTER_ID]]: ompt_event_wait_barrier_implicit_parallel_end: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}, codeptr_ra={{0x[0-f]+}}
  // CHECK: {{^}}[[MASTER_ID]]: ompt_event_barrier_implicit_parallel_end: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}, codeptr_ra={{0x[0-f]+}}
 
 
  // worker thread implicit barrier at single end
  // CHECK: {{^}}[[THREAD_ID:[0-9]+]]: ompt_event_barrier_implicit_workshare_begin: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}, codeptr_ra=[[RETURN_ADDRESS:0x[0-f]+]]{{[0-f][0-f]}}
  // CHECK: {{^}}[[THREAD_ID]]: ompt_event_wait_barrier_implicit_workshare_begin: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}, codeptr_ra=[[RETURN_ADDRESS]]{{[0-f][0-f]}}
  // CHECK: {{^}}[[THREAD_ID]]: ompt_event_wait_barrier_implicit_workshare_end: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}, codeptr_ra=[[RETURN_ADDRESS]]{{[0-f][0-f]}}
  // CHECK: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_workshare_end: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}, codeptr_ra=[[RETURN_ADDRESS]]{{[0-f][0-f]}}
  // CHECK: {{^}}[[THREAD_ID]]: fuzzy_address={{.*}}[[RETURN_ADDRESS]]
 
  // worker thread implicit barrier at parallel end
  // CHECK: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_begin: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}, codeptr_ra=[[NULL]]
  // CHECK: {{^}}[[THREAD_ID]]: ompt_event_wait_barrier_implicit_parallel_begin: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}, codeptr_ra=[[NULL]]
  // CHECK: {{^}}[[THREAD_ID]]: ompt_event_wait_barrier_implicit_parallel_end: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}, codeptr_ra=[[NULL]]
  // CHECK: {{^}}[[THREAD_ID]]: ompt_event_barrier_implicit_parallel_end: parallel_id={{[0-9]+}}, task_id={{[0-9]+}}, codeptr_ra=[[NULL]]
  // clang-format on
 
  return 0;
}