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

```asm
<llib_led_regex_brack>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x50,%rsp
  mov    %edi,-0x34(%rbp)
  mov    %rsi,-0x40(%rbp)
  mov    %rdx,-0x48(%rbp)
  mov    %ecx,-0x38(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0x0,-0x20(%rbp)
  movl   $0x0,-0x1c(%rbp)
  mov    -0x40(%rbp),%rax
  mov    (%rax),%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x48(%rbp),%rax
  mov    (%rax),%eax
  mov    %eax,-0x24(%rbp)
  mov    -0x24(%rbp),%eax
  test   %eax,%eax
  jne    L111
  mov    $0x0,%eax
  jmp    L93
L111:
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x5e,%al
  je     L131
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x2a,%al
  jne    L47
L131:
  movl   $0x1,-0x20(%rbp)
  mov    -0x10(%rbp),%rax
  add    $0x1,%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x24(%rbp),%eax
  sub    $0x1,%eax
  mov    %eax,-0x24(%rbp)
L47:
  mov    -0x24(%rbp),%eax
  test   %eax,%eax
  je     L75
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x5d,%al
  jne    L75
  mov    -0x10(%rbp),%rax
  add    $0x1,%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x24(%rbp),%eax
  sub    $0x1,%eax
  mov    %eax,-0x24(%rbp)
  cmpl   $0x5d,-0x38(%rbp)
  jne    L75
  movl   $0x1,-0x1c(%rbp)
  jmp    L75
L106:
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x5d,%al
  jne    L15
  mov    -0x10(%rbp),%rax
  add    $0x1,%rax
  mov    %rax,-0x10(%rbp)
  mov    -0x24(%rbp),%eax
  sub    $0x1,%eax
  mov    %eax,-0x24(%rbp)
  jmp    L13
L15:
  lea    -0x24(%rbp),%rdx
  lea    -0x10(%rbp),%rcx
  mov    -0x34(%rbp),%eax
  mov    %rcx,%rsi
  mov    %eax,%edi
  call   <llib_utf8_escape@plt>
  mov    %eax,-0x18(%rbp)
  mov    -0x24(%rbp),%eax
  cmp    $0x1,%eax
  jle    L46
  mov    -0x10(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x2d,%al
  jne    L46
  mov    -0x10(%rbp),%rax
  add    $0x1,%rax
  movzbl (%rax),%eax
  cmp    $0x5d,%al
  je     L46
  mov    -0x24(%rbp),%eax
  sub    $0x1,%eax
  mov    %eax,-0x24(%rbp)
  mov    -0x10(%rbp),%rax
  add    $0x1,%rax
  mov    %rax,-0x10(%rbp)
  lea    -0x24(%rbp),%rdx
  lea    -0x10(%rbp),%rcx
  mov    -0x34(%rbp),%eax
  mov    %rcx,%rsi
  mov    %eax,%edi
  call   <llib_utf8_escape@plt>
  mov    %eax,-0x14(%rbp)
  mov    -0x38(%rbp),%eax
  cmp    -0x18(%rbp),%eax
  jl     L75
  mov    -0x38(%rbp),%eax
  cmp    -0x14(%rbp),%eax
  jg     L75
  movl   $0x1,-0x1c(%rbp)
  jmp    L75
L46:
  mov    -0x38(%rbp),%eax
  cmp    -0x18(%rbp),%eax
  jne    L75
  movl   $0x1,-0x1c(%rbp)
L75:
  mov    -0x24(%rbp),%eax
  test   %eax,%eax
  jne    L106
L13:
  mov    -0x10(%rbp),%rdx
  mov    -0x40(%rbp),%rax
  mov    %rdx,(%rax)
  mov    -0x24(%rbp),%edx
  mov    -0x48(%rbp),%rax
  mov    %edx,(%rax)
  cmpl   $0x0,-0x20(%rbp)
  je     L161
  cmpl   $0x0,-0x1c(%rbp)
  sete   %al
  movzbl %al,%eax
  jmp    L93
L161:
  mov    -0x1c(%rbp),%eax
L93:
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L0
  call   <__stack_chk_fail@plt>
L0:
  leave
  ret
```

assistant: ```c
int llib_led_regex_brack(int utf8, unsigned char **a, int *la, int c) {
  int inverse = 0;
  int flag = 0;
  unsigned char *s = *a;
  int l = *la;
  if (!l)
    return 0;
  if (*s == '^' || *s == '*') {
    inverse = 1;
    ++s;
    --l;
  }
  if (l && *s == ']') {
    ++s;
    --l;
    if (c == ']')
      flag = 1;
  }
  while (l) {
    if (*s == ']') {
      ++s;
      --l;
      break;
    } else {
      int cl, cr;
      cl = llib_utf8_escape(utf8, (char **)&s, &l);
      if (l >= 2 && s[0] == '-' && s[1] != ']') {
        --l;
        ++s;
        cr = llib_utf8_escape(utf8, (char **)&s, &l);
        if (c >= cl && c <= cr)
          flag = 1;
      } else if (c == cl)
        flag = 1;
    }
  }
  *a = s;
  *la = l;
  if (inverse)
    return !flag;
  else
    return flag;
}
```