single.c

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// clang-format off
// RUN: %libomp-compile-and-run | %sort-threads | FileCheck %s
// REQUIRES: ompt
// GCC generates code that does not call the runtime for the single construct
// XFAIL: gcc
// clang-format on
 
#include "callback.h"
#include <omp.h>
 
int main() {
  int x = 0;
#pragma omp parallel num_threads(2)
  {
#pragma omp single
    {
      printf("%" PRIu64 ": in single\n", ompt_get_thread_data()->value);
      x++;
    }
  }
 
  printf("x=%d\n", x);
 
  // clang-format off
  // Check if libomp supports the callbacks for this test.
  // CHECK-NOT: {{^}}0: Could not register callback 'ompt_callback_work'
 
  // CHECK: 0: NULL_POINTER=[[NULL:.*$]]
 
  // CHECK-DAG: {{^}}[[THREAD_ID_1:[0-9]+]]: ompt_event_single_in_block_begin: parallel_id=[[PARALLEL_ID:[0-f]+]], task_id=[[TASK_ID:[0-f]+]], codeptr_ra={{(0x)?[0-f]+}}, count=1
  // CHECK-DAG: {{^}}[[THREAD_ID_1]]: in single
  // CHECK-DAG: {{^}}[[THREAD_ID_1]]: ompt_event_single_in_block_end: parallel_id=[[PARALLEL_ID]], task_id=[[TASK_ID]], codeptr_ra={{(0x)?[0-f]+}}, count=1
 
  // CHECK-DAG: {{^}}[[THREAD_ID_2:[0-9]+]]: ompt_event_single_others_begin: parallel_id=[[PARALLEL_ID:[0-f]+]], task_id=[[TASK_ID:[0-f]+]], codeptr_ra={{(0x)?[0-f]+}}, count=1
  // CHECK-DAG: {{^}}[[THREAD_ID_2]]: ompt_event_single_others_end: parallel_id=[[PARALLEL_ID]], task_id=[[TASK_ID]], codeptr_ra={{(0x)?[0-f]+}}, count=1
  // clang-format on
 
  return 0;
}