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

```asm
<Fibonacci>:
  endbr64
  push   %r15
  mov    %edi,%eax
  sub    $0x1,%edi
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x58,%rsp
  mov    %edi,0x8(%rsp)
  movl   $0x0,0x14(%rsp)
  cmp    $0x1,%eax
  jbe    L229
  cmpl   $0x1,0x8(%rsp)
  jbe    L290
L112:
  mov    0x8(%rsp),%eax
  movl   $0x0,0x18(%rsp)
  sub    $0x1,%eax
  mov    %eax,0xc(%rsp)
  cmpl   $0x1,0xc(%rsp)
  mov    %eax,0x24(%rsp)
  je     L192
L304:
  mov    0xc(%rsp),%eax
  movl   $0x0,0x1c(%rsp)
  sub    $0x1,%eax
  mov    %eax,0x10(%rsp)
  cmpl   $0x1,0x10(%rsp)
  mov    %eax,0x28(%rsp)
  je     L73
L14:
  mov    0x10(%rsp),%eax
  movl   $0x0,0x20(%rsp)
  sub    $0x1,%eax
  mov    %eax,0x30(%rsp)
  mov    %eax,%r11d
L125:
  cmp    $0x1,%r11d
  je     L228
  lea    -0x1(%r11),%eax
  xor    %ecx,%ecx
  mov    %eax,0x2c(%rsp)
  mov    %eax,%ebp
L159:
  cmp    $0x1,%ebp
  je     L74
  lea    -0x1(%rbp),%esi
  xor    %r12d,%r12d
  mov    %esi,%edx
L71:
  cmp    $0x1,%edx
  je     L188
  lea    -0x2(%rdx),%r8d
  xor    %r15d,%r15d
  mov    %r8d,%r9d
L208:
  lea    0x1(%r9),%eax
  mov    %r9d,%ebx
  xor    %r13d,%r13d
  cmp    $0x1,%eax
  jbe    L184
  mov    %ebx,%r10d
  xor    %r14d,%r14d
  cmp    $0x1,%ebx
  je     L196
  nopl   0x0(%rax)
L227:
  lea    -0x1(%r10),%edi
  mov    %r8d,0x4c(%rsp)
  mov    %esi,0x48(%rsp)
  mov    %r9d,0x44(%rsp)
  mov    %edx,0x40(%rsp)
  mov    %r11d,0x3c(%rsp)
  mov    %ecx,0x38(%rsp)
  mov    %r10d,0x34(%rsp)
  call   <Fibonacci>
  mov    0x34(%rsp),%r10d
  mov    0x38(%rsp),%ecx
  add    %eax,%r14d
  mov    0x3c(%rsp),%r11d
  mov    0x40(%rsp),%edx
  sub    $0x2,%r10d
  mov    0x44(%rsp),%r9d
  mov    0x48(%rsp),%esi
  cmp    $0x1,%r10d
  mov    0x4c(%rsp),%r8d
  ja     L227
  add    $0x1,%r14d
  lea    -0x2(%rbx),%eax
  sub    $0x1,%ebx
  add    %r14d,%r13d
  cmp    $0x1,%ebx
  jbe    L205
L127:
  mov    %eax,%ebx
  xor    %r14d,%r14d
  mov    %ebx,%r10d
  cmp    $0x1,%ebx
  jne    L227
L196:
  mov    $0x1,%r14d
  lea    -0x2(%rbx),%eax
  sub    $0x1,%ebx
  add    %r14d,%r13d
  cmp    $0x1,%ebx
  ja     L127
L205:
  add    $0x1,%r13d
  lea    -0x2(%r9),%eax
  add    %r13d,%r15d
  cmp    $0x1,%r9d
  ja     L60
L78:
  add    $0x1,%r15d
  sub    $0x1,%edx
  add    %r15d,%r12d
  cmp    $0x1,%edx
  ja     L242
L137:
  add    $0x1,%r12d
L302:
  add    %r12d,%ecx
  sub    $0x2,%ebp
  cmp    $0x1,%esi
  ja     L159
  add    $0x1,%ecx
L286:
  add    %ecx,0x20(%rsp)
  sub    $0x2,%r11d
  cmpl   $0x1,0x2c(%rsp)
  ja     L125
  mov    0x20(%rsp),%eax
  add    $0x1,%eax
L3:
  add    %eax,0x1c(%rsp)
  mov    0x10(%rsp),%eax
  sub    $0x2,%eax
  cmpl   $0x1,0x30(%rsp)
  jbe    L97
  mov    %eax,0x10(%rsp)
  cmpl   $0x1,0x10(%rsp)
  jne    L14
L73:
  movl   $0x0,0x30(%rsp)
  mov    $0x1,%eax
  jmp    L3
L188:
  mov    $0x1,%r15d
  sub    $0x1,%edx
  mov    $0xffffffff,%r8d
  add    %r15d,%r12d
  cmp    $0x1,%edx
  jbe    L137
L242:
  mov    %r8d,%edx
  jmp    L71
  nopl   0x0(%rax)
L184:
  mov    $0x1,%r13d
  lea    -0x2(%r9),%eax
  add    %r13d,%r15d
  cmp    $0x1,%r9d
  jbe    L78
L60:
  mov    %eax,%r9d
  jmp    L208
L74:
  mov    $0x1,%r12d
  xor    %esi,%esi
  jmp    L302
L228:
  movl   $0x0,0x2c(%rsp)
  mov    $0x1,%ecx
  jmp    L286
L97:
  mov    0x1c(%rsp),%eax
  add    $0x1,%eax
L263:
  add    %eax,0x18(%rsp)
  mov    0xc(%rsp),%eax
  sub    $0x2,%eax
  cmpl   $0x1,0x28(%rsp)
  jbe    L138
  mov    %eax,0xc(%rsp)
  cmpl   $0x1,0xc(%rsp)
  jne    L304
L192:
  movl   $0x0,0x28(%rsp)
  mov    $0x1,%eax
  jmp    L263
L138:
  mov    0x18(%rsp),%eax
  add    $0x1,%eax
L166:
  add    %eax,0x14(%rsp)
  mov    0x8(%rsp),%eax
  sub    $0x2,%eax
  cmpl   $0x1,0x24(%rsp)
  jbe    L235
  mov    %eax,0x8(%rsp)
  cmpl   $0x1,0x8(%rsp)
  ja     L112
L290:
  mov    0x8(%rsp),%edi
  mov    $0x1,%eax
  sub    $0x1,%edi
  mov    %edi,0x24(%rsp)
  jmp    L166
L235:
  mov    0x14(%rsp),%eax
  add    $0x58,%rsp
  pop    %rbx
  pop    %rbp
  add    $0x1,%eax
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L229:
  add    $0x58,%rsp
  mov    $0x1,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

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