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

```asm
<fibonacciRek>:
  endbr64
  mov    %edi,%r10d
  cmp    $0x1,%edi
  je     L308
  test   %edi,%edi
  je     L308
  push   %r15
  lea    -0x1(%rdi),%eax
  xor    %r10d,%r10d
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x38,%rsp
  mov    %eax,0x14(%rsp)
  mov    0x14(%rsp),%eax
  mov    %r10d,0xc(%rsp)
  mov    %eax,%r8d
  cmp    $0x1,%eax
  je     L352
L171:
  test   %eax,%eax
  je     L293
  movl   $0x0,0x4(%rsp)
L279:
  lea    -0x1(%r8),%eax
  cmp    $0x2,%r8d
  je     L382
  sub    $0x2,%r8d
  mov    %r8d,%esi
  test   %eax,%eax
  je     L279
  movl   $0x0,0x8(%rsp)
  mov    %r8d,0x18(%rsp)
  cmp    $0x1,%esi
  je     L160
L226:
  test   %esi,%esi
  je     L121
  xor    %r8d,%r8d
  mov    %esi,0x1c(%rsp)
  mov    %esi,%r15d
  mov    %r8d,0x10(%rsp)
L141:
  lea    -0x1(%r15),%eax
  cmp    $0x2,%r15d
  je     L238
  sub    $0x2,%r15d
  test   %eax,%eax
  je     L141
  xor    %r10d,%r10d
  mov    %r15d,0x20(%rsp)
  mov    %r10d,(%rsp)
L464:
  mov    %r15d,%r13d
  cmp    $0x1,%r15d
  je     L281
  test   %r15d,%r15d
  je     L151
  xor    %edx,%edx
  mov    %r15d,%esi
L273:
  lea    -0x1(%r13),%eax
  cmp    $0x2,%r13d
  je     L478
  sub    $0x2,%r13d
  mov    %r13d,%ebx
  test   %eax,%eax
  je     L273
  xor    %r12d,%r12d
  mov    %r13d,%ecx
  mov    %r12d,%r13d
L481:
  mov    %ebx,%r15d
  cmp    $0x1,%ebx
  je     L431
  test   %ebx,%ebx
  je     L157
  xor    %ebp,%ebp
  nopl   0x0(%rax)
L373:
  lea    -0x1(%r15),%r12d
  cmp    $0x2,%r15d
  je     L284
  sub    $0x2,%r15d
  test   %r12d,%r12d
  je     L373
  mov    %ebx,0x24(%rsp)
  xor    %r14d,%r14d
  mov    %ecx,%ebx
L359:
  lea    -0x1(%r12),%edi
  mov    %esi,0x2c(%rsp)
  sub    $0x2,%r12d
  mov    %edx,0x28(%rsp)
  call   <fibonacciRek>
  mov    0x28(%rsp),%edx
  mov    0x2c(%rsp),%esi
  add    %eax,%r14d
  cmp    $0x1,%r12d
  je     L401
  test   %r12d,%r12d
  jne    L359
  mov    %ebx,%ecx
  mov    0x24(%rsp),%ebx
L498:
  add    %r14d,%ebp
  cmp    $0x1,%r15d
  jne    L175
L284:
  add    $0x1,%ebp
L82:
  add    %ebp,%r13d
  lea    -0x1(%rbx),%eax
  cmp    $0x2,%ebx
  jne    L94
L431:
  mov    %r13d,%r12d
  mov    %ecx,%r13d
  add    $0x1,%r12d
L222:
  add    %r12d,%edx
  cmp    $0x1,%r13d
  jne    L166
L478:
  mov    %esi,%r15d
  add    $0x1,%edx
L138:
  add    %edx,(%rsp)
  lea    -0x1(%r15),%eax
  mov    (%rsp),%r10d
  cmp    $0x2,%r15d
  jne    L295
  mov    0x20(%rsp),%r15d
  add    $0x1,%r10d
L134:
  add    %r10d,0x10(%rsp)
  cmp    $0x1,%r15d
  je     L238
L330:
  test   %r15d,%r15d
  jne    L141
  mov    0x10(%rsp),%r8d
  mov    0x1c(%rsp),%esi
  jmp    L223
  nopl   0x0(%rax,%rax,1)
L94:
  test   %eax,%eax
  je     L327
L157:
  sub    $0x2,%ebx
  jmp    L481
L166:
  test   %r13d,%r13d
  jne    L273
  mov    %esi,%r15d
  jmp    L138
  cs nopw 0x0(%rax,%rax,1)
L401:
  mov    %ebx,%ecx
  add    $0x1,%r14d
  mov    0x24(%rsp),%ebx
  jmp    L498
L281:
  mov    (%rsp),%r10d
  mov    0x20(%rsp),%r15d
  add    $0x1,%r10d
  add    %r10d,0x10(%rsp)
  cmp    $0x1,%r15d
  jne    L330
L238:
  mov    0x10(%rsp),%r8d
  mov    0x1c(%rsp),%esi
  add    $0x1,%r8d
L223:
  add    %r8d,0x8(%rsp)
  lea    -0x1(%rsi),%eax
  cmp    $0x2,%esi
  je     L160
  test   %eax,%eax
  je     L14
L121:
  sub    $0x2,%esi
  cmp    $0x1,%esi
  jne    L226
L160:
  addl   $0x1,0x8(%rsp)
  mov    0x18(%rsp),%r8d
L64:
  mov    0x8(%rsp),%edi
  add    %edi,0x4(%rsp)
  cmp    $0x1,%r8d
  je     L382
  test   %r8d,%r8d
  jne    L279
L385:
  mov    0x4(%rsp),%edi
  add    %edi,0xc(%rsp)
  mov    0x14(%rsp),%edi
  lea    -0x1(%rdi),%eax
  cmp    $0x2,%edi
  je     L352
  test   %eax,%eax
  je     L145
L293:
  subl   $0x2,0x14(%rsp)
  mov    0x14(%rsp),%eax
  mov    %eax,%r8d
  cmp    $0x1,%eax
  jne    L171
L352:
  mov    0xc(%rsp),%r10d
  add    $0x1,%r10d
L463:
  add    $0x38,%rsp
  mov    %r10d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L295:
  test   %eax,%eax
  je     L406
L151:
  sub    $0x2,%r15d
  jmp    L464
L327:
  mov    %r13d,%r12d
  mov    %ecx,%r13d
  jmp    L222
L175:
  test   %r15d,%r15d
  jne    L373
  jmp    L82
L382:
  addl   $0x1,0x4(%rsp)
  jmp    L385
L308:
  mov    %r10d,%eax
  ret
L145:
  mov    0xc(%rsp),%r10d
  jmp    L463
L406:
  mov    0x20(%rsp),%r15d
  mov    (%rsp),%r10d
  jmp    L134
L14:
  mov    0x18(%rsp),%r8d
  jmp    L64
```

assistant: ```c
int fibonacciRek(int n) {
  int temp = 0;
  if (n == 1) {
    return 1;
  } else if (n == 0) {
    return 0;
  } else {
    return fibonacciRek(n - 1) + fibonacciRek(n - 2);
  }
}
```