user: What would the C source look like for the assembly code provided here?

```asm
<test_collapse>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x20,%rsp
  movl   $0x0,-0x1c(%rbp)
  jmp    L0
L482:
  addl   $0x1,-0x1c(%rbp)
L0:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L482
  movl   $0x0,-0x1c(%rbp)
  jmp    L255
L406:
  addl   $0x1,-0x1c(%rbp)
L255:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L406
  movl   $0x0,-0x1c(%rbp)
  jmp    L241
L447:
  addl   $0x1,-0x1c(%rbp)
L241:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L447
  movl   $0x0,-0x1c(%rbp)
  jmp    L444
L356:
  addl   $0x1,-0x1c(%rbp)
L444:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L356
  movl   $0x0,-0x1c(%rbp)
  jmp    L217
L468:
  addl   $0x1,-0x1c(%rbp)
L217:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L468
  movl   $0x0,-0x1c(%rbp)
  jmp    L418
L328:
  addl   $0x1,-0x1c(%rbp)
L418:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L328
  movl   $0x0,-0x1c(%rbp)
  jmp    L232
L10:
  addl   $0x1,-0x1c(%rbp)
L232:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L10
  movl   $0x0,-0x1c(%rbp)
  jmp    L187
L66:
  addl   $0x1,-0x1c(%rbp)
L187:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L66
  movl   $0x0,-0x1c(%rbp)
  jmp    L200
L1:
  addl   $0x1,-0x1c(%rbp)
L200:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L1
  movl   $0x0,-0x1c(%rbp)
  jmp    L159
L404:
  addl   $0x1,-0x1c(%rbp)
L159:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L404
  movl   $0x0,-0x1c(%rbp)
  jmp    L306
L443:
  addl   $0x1,-0x1c(%rbp)
L306:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L443
  movl   $0x0,-0x1c(%rbp)
  jmp    L439
L140:
  addl   $0x1,-0x1c(%rbp)
L439:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L140
  movl   $0x0,-0x18(%rbp)
  jmp    L369
L21:
  movl   $0x0,-0x14(%rbp)
  jmp    L58
L27:
  movl   $0x0,-0x10(%rbp)
  jmp    L138
L353:
  movl   $0x0,-0xc(%rbp)
  jmp    L11
L355:
  mov    $0x0,%eax
  call   <foo@plt>
  addl   $0x1,-0xc(%rbp)
L11:
  cmpl   $0xf,-0xc(%rbp)
  jle    L355
  addl   $0x1,-0x10(%rbp)
L138:
  cmpl   $0xf,-0x10(%rbp)
  jle    L353
  addl   $0x1,-0x14(%rbp)
L58:
  cmpl   $0xf,-0x14(%rbp)
  jle    L27
  addl   $0x1,-0x18(%rbp)
L369:
  cmpl   $0xf,-0x18(%rbp)
  jle    L21
  movl   $0x0,-0x1c(%rbp)
  jmp    L99
L37:
  addl   $0x1,-0x1c(%rbp)
L99:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L37
  movl   $0x0,-0x1c(%rbp)
  jmp    L69
L199:
  addl   $0x1,-0x1c(%rbp)
L69:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L199
  movl   $0x0,-0x1c(%rbp)
  jmp    L48
L397:
  addl   $0x1,-0x1c(%rbp)
L48:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L397
  movl   $0x0,-0x1c(%rbp)
  jmp    L158
L442:
  addl   $0x1,-0x1c(%rbp)
L158:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L442
  movl   $0x0,-0x1c(%rbp)
  jmp    L4
L128:
  addl   $0x1,-0x1c(%rbp)
L4:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L128
  movl   $0x0,-0x1c(%rbp)
  jmp    L124
L134:
  addl   $0x1,-0x1c(%rbp)
L124:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L134
  movl   $0x0,-0x1c(%rbp)
  jmp    L93
L154:
  movl   $0x0,-0x8(%rbp)
  jmp    L251
L169:
  movl   $0x0,-0x4(%rbp)
  jmp    L281
L55:
  mov    -0x8(%rbp),%eax
  add    %eax,-0x1c(%rbp)
  addl   $0x1,-0x4(%rbp)
L281:
  cmpl   $0xf,-0x4(%rbp)
  jle    L55
  addl   $0x1,-0x8(%rbp)
L251:
  cmpl   $0xf,-0x8(%rbp)
  jle    L169
  addl   $0x1,-0x1c(%rbp)
L93:
  cmpl   $0xf,-0x1c(%rbp)
  jle    L154
  nop
  nop
  leave
  ret
```

assistant: ```c
void test_collapse() {
  int i;
#pragma omp target teams distribute collapse
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute collapse(
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute collapse()
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute collapse(,
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute collapse(, )
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute collapse 4)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute collapse(4
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute collapse(4,
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute collapse(4, )
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute collapse(4)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute collapse(4 4)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute collapse(4, , 4)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute 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 collapse(4, 8)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute collapse(2.5)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute collapse(foo())
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute collapse(-5)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute collapse(0)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute collapse(5 - 5)
  for (i = 0; i < 16; ++i)
    ;
#pragma omp target teams distribute 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;
}
```