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

```asm
<__getopt_long>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    D33(%rip),%rax
  mov    (%rax),%ebp
  cmp    %edi,%ebp
  jge    L2
  mov    %edi,%r10d
  mov    %rsi,%r11
  mov    %rdx,%rbx
  mov    %rcx,%rsi
  movslq %ebp,%rax
  lea    0x0(,%rax,8),%r12
  mov    (%r11,%rax,8),%rdi
  test   %rdi,%rdi
  je     L313
  cmpb   $0x2d,(%rdi)
  jne    L212
  test   %r9d,%r9d
  je     L122
  cmpb   $0x0,0x1(%rdi)
  je     L105
  mov    (%rcx),%rdx
  test   %rdx,%rdx
  je     L77
L78:
  lea    0x1(%rdi),%r9
  lea    0x2(%rdi),%rax
  cmpb   $0x2d,0x1(%rdi)
  cmove  %rax,%r9
  mov    $0x0,%r13d
  jmp    L242
L122:
  cmpb   $0x2d,0x1(%rdi)
  jne    L105
  cmpb   $0x0,0x2(%rdi)
  jne    L297
L105:
  mov    %rbx,%rdx
  mov    %r11,%rsi
  mov    %r10d,%edi
  call   <getopt@plt>
L211:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
L232:
  test   %cl,%cl
  je     L274
L169:
  add    $0x1,%r13d
  add    $0x20,%rsi
  mov    (%rsi),%rdx
  test   %rdx,%rdx
  je     L77
L242:
  movzbl (%rdx),%ecx
  mov    %r9,%rax
  test   %cl,%cl
  je     L274
L285:
  cmp    %cl,(%rax)
  jne    L232
  add    $0x1,%rdx
  add    $0x1,%rax
  movzbl (%rdx),%ecx
  test   %cl,%cl
  jne    L285
L274:
  movzbl (%rax),%edx
  test   %dl,%dl
  je     L312
  cmp    $0x3d,%dl
  jne    L169
L312:
  cmp    $0x3d,%dl
  jne    L296
  cmpq   $0x0,0x8(%rsi)
  je     L169
  add    $0x1,%rax
  mov    D39(%rip),%rdx
  mov    %rax,(%rdx)
L112:
  mov    D33(%rip),%rax
  addl   $0x1,(%rax)
  test   %r8,%r8
  je     L114
  mov    %r13d,(%r8)
L114:
  mov    0x10(%rsi),%rax
  test   %rax,%rax
  je     L93
  mov    0x18(%rsi),%edx
  mov    %edx,(%rax)
  mov    $0x0,%eax
  jmp    L211
L296:
  mov    D57(%rip),%rax
  mov    (%rax),%rax
  cmp    %rax,0x8(%rsi)
  je     L80
  mov    D39(%rip),%rax
  movq   $0x0,(%rax)
  jmp    L112
L80:
  add    $0x1,%ebp
  mov    D33(%rip),%rax
  mov    %ebp,(%rax)
  mov    0x8(%r11,%r12,1),%rax
  mov    D39(%rip),%rdx
  mov    %rax,(%rdx)
  test   %rax,%rax
  jne    L112
  mov    $0x3a,%eax
  jmp    L211
L93:
  mov    0x18(%rsi),%eax
  jmp    L211
L77:
  cmpb   $0x2d,0x1(%rdi)
  jne    L105
  jmp    L177
L2:
  mov    $0xffffffff,%eax
  jmp    L211
L313:
  mov    $0xffffffff,%eax
  jmp    L211
L212:
  mov    $0xffffffff,%eax
  jmp    L211
L297:
  mov    (%rcx),%rdx
  test   %rdx,%rdx
  jne    L78
L177:
  add    $0x1,%ebp
  mov    D33(%rip),%rax
  mov    %ebp,(%rax)
  mov    $0x3f,%eax
  jmp    L211
```

assistant: ```c
int __getopt_long(int argc, char *const *argv, const char *optstring, const struct option *longopts, int *idx, int longonly) {
  if (optind >= argc || !argv[optind] || argv[optind][0] != '-')
    return -1;
  if ((longonly && argv[optind][1]) || (argv[optind][1] == '-' && argv[optind][2])) {
    int i;
    for (i = 0; longopts[i].name; i++) {
      const char *name = longopts[i].name;
      char *opt = argv[optind] + 1;
      if (*opt == '-')
        opt++;
      for (; *name && *name == *opt; name++, opt++)
        ;
      if (*name || (*opt && *opt != '='))
        continue;
      if (*opt == '=') {
        if (!longopts[i].has_arg)
          continue;
        optarg = opt + 1;
      } else {
        if (longopts[i].has_arg == required_argument) {
          if (!(optarg = argv[++optind]))
            return ':';
        } else
          optarg = NULL;
      }
      optind++;
      if (idx)
        *idx = i;
      if (longopts[i].flag) {
        *longopts[i].flag = longopts[i].val;
        return 0;
      }
      return longopts[i].val;
    }
    if (argv[optind][1] == '-') {
      optind++;
      return '?';
    }
  }
  return getopt(argc, argv, optstring);
}
```