user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<test_collapse>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  movl   $0x0,-0x1c(%rbp)
  jmp    L354
L22:
  addl   $0x1,-0x1c(%rbp)
L354:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L22
  movl   $0x0,-0x1c(%rbp)
  jmp    L462
L494:
  addl   $0x1,-0x1c(%rbp)
L462:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L494
  movl   $0x0,-0x1c(%rbp)
  jmp    L356
L335:
  addl   $0x1,-0x1c(%rbp)
L356:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L335
  movl   $0x0,-0x1c(%rbp)
  jmp    L385
L464:
  addl   $0x1,-0x1c(%rbp)
L385:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L464
  movl   $0x0,-0x1c(%rbp)
  jmp    L463
L449:
  addl   $0x1,-0x1c(%rbp)
L463:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L449
  movl   $0x0,-0x1c(%rbp)
  jmp    L428
L57:
  addl   $0x1,-0x1c(%rbp)
L428:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L57
  movl   $0x0,-0x1c(%rbp)
  jmp    L211
L145:
  addl   $0x1,-0x1c(%rbp)
L211:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L145
  movl   $0x0,-0x1c(%rbp)
  jmp    L93
L425:
  addl   $0x1,-0x1c(%rbp)
L93:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L425
  movl   $0x0,-0x1c(%rbp)
  jmp    L34
L215:
  addl   $0x1,-0x1c(%rbp)
L34:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L215
  movl   $0x0,-0x1c(%rbp)
  jmp    L12
L470:
  addl   $0x1,-0x1c(%rbp)
L12:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L470
  movl   $0x0,-0x1c(%rbp)
  jmp    L56
L88:
  addl   $0x1,-0x1c(%rbp)
L56:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L88
  movl   $0x0,-0x1c(%rbp)
  jmp    L290
L79:
  addl   $0x1,-0x1c(%rbp)
L290:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L79
  movl   $0x0,-0x18(%rbp)
  jmp    L309
L126:
  movl   $0x0,-0x14(%rbp)
  jmp    L141
L119:
  movl   $0x0,-0x10(%rbp)
  jmp    L393
L120:
  movl   $0x0,-0xc(%rbp)
  jmp    L498
L190:
  mov    $0x0,%eax
  call   <foo@plt>
  addl   $0x1,-0xc(%rbp)
L498:
  cmpl   $0xf,-0xc(%rbp)
  jle    L190
  addl   $0x1,-0x10(%rbp)
L393:
  cmpl   $0xf,-0x10(%rbp)
  jle    L120
  addl   $0x1,-0x14(%rbp)
L141:
  cmpl   $0xf,-0x14(%rbp)
  jle    L119
  addl   $0x1,-0x18(%rbp)
L309:
  cmpl   $0xf,-0x18(%rbp)
  jle    L126
  movl   $0x0,-0x1c(%rbp)
  jmp    L372
L256:
  addl   $0x1,-0x1c(%rbp)
L372:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L256
  movl   $0x0,-0x1c(%rbp)
  jmp    L381
L170:
  addl   $0x1,-0x1c(%rbp)
L381:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L170
  movl   $0x0,-0x1c(%rbp)
  jmp    L485
L438:
  addl   $0x1,-0x1c(%rbp)
L485:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L438
  movl   $0x0,-0x1c(%rbp)
  jmp    L477
L460:
  addl   $0x1,-0x1c(%rbp)
L477:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L460
  movl   $0x0,-0x1c(%rbp)
  jmp    L46
L242:
  addl   $0x1,-0x1c(%rbp)
L46:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L242
  movl   $0x0,-0x1c(%rbp)
  jmp    L23
L347:
  addl   $0x1,-0x1c(%rbp)
L23:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L347
  movl   $0x0,-0x1c(%rbp)
  jmp    L382
L216:
  movl   $0x0,-0x8(%rbp)
  jmp    L404
L416:
  movl   $0x0,-0x4(%rbp)
  jmp    L182
L386:
  mov    -0x8(%rbp),%eax
  add    %eax,-0x1c(%rbp)
  addl   $0x1,-0x4(%rbp)
L182:
  cmpl   $0xf,-0x4(%rbp)
  jle    L386
  addl   $0x1,-0x8(%rbp)
L404:
  cmpl   $0xf,-0x8(%rbp)
  jle    L416
  addl   $0x1,-0x1c(%rbp)
L382:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L216
  nop
  nop
  leave
  ret
```

assistant: ```c
void test_collapse() {
  int i;
#pragma omp target teams distribute parallel for simd collapse
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute parallel for simd collapse(
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute parallel for simd collapse()
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute parallel for simd collapse(,
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute parallel for simd collapse(, )
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute parallel for simd collapse 4)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute parallel for simd collapse(4
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute parallel for simd collapse(4,
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute parallel for simd collapse(4, )
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute parallel for simd collapse(4)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute parallel for simd collapse(4 4)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute parallel for simd collapse(4, , 4)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute parallel for simd collapse(4)
  for (int i1 = 0; i1 < 16; ++i1)
    for (int i2 = 0; i2 < 16; ++i2)
      for (int i3 = 0; i3 < 16; ++i3)
        for (int i4 = 0; i4 < 16; ++i4)
          foo();
#pragma omp target teams distribute parallel for simd collapse(4, 8)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute parallel for simd collapse(2.5)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute parallel for simd collapse(foo())
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute parallel for simd collapse(-5)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute parallel for simd collapse(0)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute parallel for simd collapse(5 - 5)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute parallel for simd collapse(2) firstprivate(i)
  for (i = 0; i < 16; ++i)
    for (int j = 0; j < 16; ++j)
#pragma omp parallel for reduction(+ : i, j)
      for (int k = 0; k < 16; ++k)
        i += j;
}
```