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

```asm
<filevercmp>:
  endbr64
  push   %r14
  push   %r13
  push   %r12
  mov    %rsi,%r12
  push   %rbp
  mov    %rdi,%rbp
  sub    $0x38,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x28(%rsp)
  xor    %eax,%eax
  call   <strcmp@plt>
  mov    %eax,%r13d
  test   %eax,%eax
  je     L207
  movzbl 0x0(%rbp),%eax
  test   %al,%al
  je     L284
  movzbl (%r12),%edx
  test   %dl,%dl
  je     L115
  cmp    $0x2e,%al
  jne    L221
  cmpb   $0x0,0x1(%rbp)
  je     L284
L221:
  cmpb   $0x2e,(%r12)
  jne    L73
  cmpb   $0x0,0x1(%r12)
  jne    L73
L115:
  mov    $0x1,%r13d
L207:
  mov    0x28(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L298
  add    $0x38,%rsp
  mov    %r13d,%eax
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  ret
  nopl   0x0(%rax)
L73:
  cmpb   $0x2e,0x0(%rbp)
  jne    L46
  movzbl 0x1(%rbp),%ecx
  mov    $0x2e,%esi
  cmp    %ecx,%esi
  jne    L46
  cmpb   $0x0,0x2(%rbp)
  je     L284
L46:
  cmpb   $0x2e,(%r12)
  je     L304
L158:
  cmp    $0x2e,%al
  sete   %cl
  cmp    $0x2e,%dl
  je     L162
  test   %cl,%cl
  jne    L284
L162:
  cmp    $0x2e,%dl
  sete   %dl
  cmp    $0x2e,%al
  je     L260
  test   %dl,%dl
  jne    L115
L260:
  test   %cl,%cl
  je     L155
  test   %dl,%dl
  jne    L111
L155:
  lea    0x18(%rsp),%rdi
  mov    %rbp,0x18(%rsp)
  mov    %r12,0x20(%rsp)
  call   <match_suffix@plt>
  lea    0x20(%rsp),%rdi
  mov    %rax,%r14
  call   <match_suffix@plt>
  test   %r14,%r14
  je     L70
  sub    %rbp,%r14
  test   %rax,%rax
  je     L107
L225:
  sub    %r12,%rax
  mov    %rax,%rcx
L8:
  cmp    %r14,%rcx
  je     L259
L151:
  mov    %r12,%rdx
  mov    %r14,%rsi
  mov    %rbp,%rdi
  call   <verrevcmp@plt>
  test   %eax,%eax
  cmovne %eax,%r13d
  jmp    L207
  nopw   0x0(%rax,%rax,1)
L304:
  movzbl 0x1(%r12),%ecx
  mov    $0x2e,%esi
  cmp    %ecx,%esi
  jne    L158
  cmpb   $0x0,0x2(%r12)
  je     L115
  jmp    L158
  nopl   0x0(%rax)
L284:
  mov    $0xffffffff,%r13d
  jmp    L207
  nopl   0x0(%rax,%rax,1)
L70:
  mov    0x18(%rsp),%r14
  sub    %rbp,%r14
  test   %rax,%rax
  jne    L225
L42:
  mov    0x20(%rsp),%rcx
  sub    %r12,%rcx
  jmp    L151
  nop
L111:
  add    $0x1,%rbp
  add    $0x1,%r12
  jmp    L155
  nopl   (%rax)
L259:
  mov    %rcx,%rdx
  mov    %r12,%rsi
  mov    %rbp,%rdi
  mov    %rcx,0x8(%rsp)
  call   <strncmp@plt>
  mov    0x8(%rsp),%rcx
  test   %rax,%rax
  jne    L151
  mov    0x18(%rsp),%r14
  sub    %rbp,%r14
  jmp    L42
L298:
  call   <__stack_chk_fail@plt>
L107:
  mov    0x20(%rsp),%rcx
  sub    %r12,%rcx
  jmp    L8
```

assistant: ```c
int filevercmp(const char *s1, const char *s2) {
  const char *s1_pos;
  const char *s2_pos;
  const char *s1_suffix, *s2_suffix;
  size_t s1_len, s2_len;
  int result;
  int simple_cmp = strcmp(s1, s2);
  if (simple_cmp == 0)
    return 0;
  if (!*s1)
    return -1;
  if (!*s2)
    return 1;
  if (0 == strcmp(".", s1))
    return -1;
  if (0 == strcmp(".", s2))
    return 1;
  if (0 == strcmp("..", s1))
    return -1;
  if (0 == strcmp("..", s2))
    return 1;
  if (*s1 == '.' && *s2 != '.')
    return -1;
  if (*s1 != '.' && *s2 == '.')
    return 1;
  if (*s1 == '.' && *s2 == '.') {
    s1++;
    s2++;
  }
  s1_pos = s1;
  s2_pos = s2;
  s1_suffix = match_suffix(&s1_pos);
  s2_suffix = match_suffix(&s2_pos);
  s1_len = (s1_suffix ? s1_suffix : s1_pos) - s1;
  s2_len = (s2_suffix ? s2_suffix : s2_pos) - s2;
  if ((s1_suffix || s2_suffix) && (s1_len == s2_len) && 0 == strncmp(s1, s2, s1_len)) {
    s1_len = s1_pos - s1;
    s2_len = s2_pos - s2;
  }
  result = verrevcmp(s1, s1_len, s2, s2_len);
  return result == 0 ? simple_cmp : result;
}
```