user: Demonstrate the C code that generates the assembly output below:

```asm
<main>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    $0x0,%eax
  call   <omp_get_num_threads@plt>
  mov    %eax,%r13d
  mov    $0x4,%edi
  call   <malloc@plt>
  mov    %rax,%rbp
  mov    %rax,%rdi
  call   <assert@plt>
  movl   $0x0,0x0(%rbp)
  mov    $0x1,%ebx
  jmp    L132
L62:
  mov    $0x0,%eax
  call   <current_time_ns@plt>
  mov    %rax,%r12
  mov    %rbp,%rdi
  call   <atomic_inc@plt>
L61:
  add    $0x1,%ebx
L132:
  cmp    $0x2711,%ebx
  je     L62
  mov    %rbp,%rdi
  call   <atomic_inc@plt>
  cmp    $0x1adaf,%ebx
  jle    L61
  mov    $0x0,%eax
  call   <current_time_ns@plt>
  imul   $0x186a0,%r13d,%r13d
  pxor   %xmm2,%xmm2
  cvtsi2sd %r13d,%xmm2
  movq   %xmm2,%r13
  sub    %r12,%rax
  js     L59
  pxor   %xmm0,%xmm0
  cvtsi2sd %rax,%xmm0
L124:
  movq   %r13,%xmm1
  divsd  %xmm0,%xmm1
  movapd %xmm1,%xmm0
  lea    D27(%rip),%rdi
  call   <printf@plt>
  mov    $0x1,%ebx
  jmp    L48
L59:
  mov    %rax,%rdx
  shr    %rdx
  and    $0x1,%eax
  or     %rax,%rdx
  pxor   %xmm0,%xmm0
  cvtsi2sd %rdx,%xmm0
  addsd  %xmm0,%xmm0
  jmp    L124
L70:
  mov    $0x0,%eax
  call   <current_time_ns@plt>
  mov    %rax,%r12
  mov    %rbp,%rdi
  call   <atomic_dec@plt>
L127:
  add    $0x1,%ebx
L48:
  cmp    $0x2711,%ebx
  je     L70
  mov    %rbp,%rdi
  call   <atomic_dec@plt>
  cmp    $0x1adaf,%ebx
  jle    L127
  mov    $0x0,%eax
  call   <current_time_ns@plt>
  sub    %r12,%rax
  js     L33
  pxor   %xmm0,%xmm0
  cvtsi2sd %rax,%xmm0
L142:
  movq   %r13,%xmm1
  divsd  %xmm0,%xmm1
  movapd %xmm1,%xmm0
  lea    D2(%rip),%rdi
  call   <printf@plt>
  mov    $0x1,%ebx
  jmp    L16
L33:
  mov    %rax,%rdx
  shr    %rdx
  and    $0x1,%eax
  or     %rax,%rdx
  pxor   %xmm0,%xmm0
  cvtsi2sd %rdx,%xmm0
  addsd  %xmm0,%xmm0
  jmp    L142
L13:
  mov    $0x0,%eax
  call   <current_time_ns@plt>
  mov    %rax,%r12
  mov    $0x1,%edx
  mov    $0x0,%esi
  mov    %rbp,%rdi
  call   <atomic_cas@plt>
L19:
  add    $0x1,%ebx
L16:
  cmp    $0x2711,%ebx
  je     L13
  mov    $0x1,%edx
  mov    $0x0,%esi
  mov    %rbp,%rdi
  call   <atomic_cas@plt>
  cmp    $0x1adaf,%ebx
  jle    L19
  mov    $0x0,%eax
  call   <current_time_ns@plt>
  sub    %r12,%rax
  js     L145
  pxor   %xmm1,%xmm1
  cvtsi2sd %rax,%xmm1
L83:
  movq   %r13,%xmm0
  divsd  %xmm1,%xmm0
  lea    D0(%rip),%rdi
  call   <printf@plt>
  mov    $0x0,%eax
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L145:
  mov    %rax,%rdx
  shr    %rdx
  and    $0x1,%eax
  or     %rax,%rdx
  pxor   %xmm1,%xmm1
  cvtsi2sd %rdx,%xmm1
  addsd  %xmm1,%xmm1
  jmp    L83
```

tool_calls: name: unpack_data
arguments: data_tag: D27
type_guessed: string
name: unpack_data
arguments: data_tag: D2
type_guessed: string
name: unpack_data
arguments: data_tag: D0
type_guessed: string

tool: D27: INC : %f ops/ns


tool: D2: DEC : %f ops/ns


tool: D0: CAS : %f ops/ns


assistant: ```c
int main(int argc, char **argv) {
  int nthreads;
#pragma omp parallel
#pragma omp single
  { nthreads = omp_get_num_threads(); }
  int *shared = (int *)malloc(sizeof(int));
  assert(shared);
  *shared = 0;
  unsigned long long start, end, elapsed;
#pragma omp parallel
  {
    int i;
    for (i = 0; i < (100000 / 10) + 100000; i++) {
      if (i == (100000 / 10)) {
#pragma omp barrier
#pragma omp master
        start = current_time_ns();
      }
      atomic_inc(shared);
    }
#pragma omp barrier
#pragma omp master
    end = current_time_ns();
  }
  printf("INC : %f ops/ns\n", (double)(100000 * nthreads) / (double)(end - start));
#pragma omp parallel
  {
    int i;
    for (i = 0; i < (100000 / 10) + 100000; i++) {
      if (i == (100000 / 10)) {
#pragma omp barrier
#pragma omp master
        start = current_time_ns();
      }
      atomic_dec(shared);
    }
#pragma omp barrier
#pragma omp master
    end = current_time_ns();
  }
  printf("DEC : %f ops/ns\n", (double)(100000 * nthreads) / (double)(end - start));
#pragma omp parallel
  {
    int i;
    for (i = 0; i < (100000 / 10) + 100000; i++) {
      if (i == (100000 / 10)) {
#pragma omp barrier
#pragma omp master
        start = current_time_ns();
      }
      atomic_cas(shared, 0, 1);
    }
#pragma omp barrier
#pragma omp master
    end = current_time_ns();
  }
  printf("CAS : %f ops/ns\n", (double)(100000 * nthreads) / (double)(end - start));
  return 0;
}
```