user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<f2>:
  endbr64
  ret
```

assistant: ```c
void f2(void) {
  int i, j = 0;
#pragma omp parallel
  {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
#pragma omp master
    {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
    }
#pragma omp single
    {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
    }
#pragma omp critical
    {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
    }
#pragma omp taskgroup
    {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
    }
#pragma omp task
    {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
    }
#pragma omp taskgroup
#pragma omp task
    {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
    }
#pragma omp taskgroup
    {
#pragma omp task
        {
#pragma omp task
            {
#pragma omp cancellation point taskgroup
#pragma omp cancel taskgroup
            }}}
#pragma omp taskgroup
    {
#pragma omp parallel
      {
#pragma omp task
          {
#pragma omp cancel taskgroup
#pragma omp cancellation point taskgroup
          }}
#pragma omp target
      {
#pragma omp task
        {
#pragma omp cancel taskgroup
#pragma omp cancellation point taskgroup
        }
      }
#pragma omp target
#pragma omp teams
#pragma omp distribute
      for (i = 0; i < 10; i++) {
#pragma omp task
        {
#pragma omp cancel taskgroup
#pragma omp cancellation point taskgroup
        }
      }
#pragma omp target data map(i)
      {
#pragma omp task
        {
#pragma omp cancel taskgroup
#pragma omp cancellation point taskgroup
        }
      }
    }
#pragma omp for
    for (i = 0; i < 10; i++) {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
    }
#pragma omp for ordered
    for (i = 0; i < 10; i++)
#pragma omp ordered
    {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
    }
#pragma omp sections
    {{
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
    }
#pragma omp section
     {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
     }}
#pragma omp target data map(j)
    {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
    }
#pragma omp target
    {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
    }
  }
#pragma omp target data map(j)
  {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
  }
#pragma omp target
  {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
  }
#pragma omp target teams
  {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
  }
#pragma omp target teams distribute
  for (i = 0; i < 10; i++) {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
  }
#pragma omp for
  for (i = 0; i < 10; i++) {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
  }
#pragma omp for
  for (i = 0; i < 10; i++)
#pragma omp target data map(j)
  {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
  }
#pragma omp for
  for (i = 0; i < 10; i++)
#pragma omp target
  {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
  }
#pragma omp for ordered
  for (i = 0; i < 10; i++)
#pragma omp ordered
#pragma omp target data map(j)
  {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
  }
#pragma omp for ordered
  for (i = 0; i < 10; i++)
#pragma omp ordered
#pragma omp target
  {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
  }
#pragma omp sections
  {{
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
  }
#pragma omp section
   {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
   }}
#pragma omp sections
  {
#pragma omp target data map(j)
      {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
      }
#pragma omp section
#pragma omp target data map(j)
      {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
      }}
#pragma omp sections
  {
#pragma omp target
      {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
      }
#pragma omp section
#pragma omp target
      {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
      }}
#pragma omp task
  {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
#pragma omp taskgroup
    {
#pragma omp cancel parallel
#pragma omp cancel for
#pragma omp cancel sections
#pragma omp cancel taskgroup
#pragma omp cancellation point parallel
#pragma omp cancellation point for
#pragma omp cancellation point sections
#pragma omp cancellation point taskgroup
    }
  }
}
```