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

```asm
<ranges_overlap>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x10,%rsp
  mov    %edi,-0x4(%rbp)
  mov    %esi,-0x8(%rbp)
  mov    %edx,-0xc(%rbp)
  mov    %ecx,-0x10(%rbp)
  mov    -0x4(%rbp),%eax
  not    %eax
  shr    $0x1f,%eax
  movzbl %al,%eax
  mov    %eax,%edi
  call   <assert@plt>
  mov    -0x8(%rbp),%eax
  not    %eax
  shr    $0x1f,%eax
  movzbl %al,%eax
  mov    %eax,%edi
  call   <assert@plt>
  mov    -0x4(%rbp),%eax
  cmp    -0x8(%rbp),%eax
  jle    L191
  cmpl   $0x0,-0x8(%rbp)
  jne    L190
L191:
  mov    $0x1,%eax
  jmp    L280
L190:
  mov    $0x0,%eax
L280:
  mov    %eax,%edi
  call   <assert@plt>
  mov    -0xc(%rbp),%eax
  not    %eax
  shr    $0x1f,%eax
  movzbl %al,%eax
  mov    %eax,%edi
  call   <assert@plt>
  mov    -0x10(%rbp),%eax
  not    %eax
  shr    $0x1f,%eax
  movzbl %al,%eax
  mov    %eax,%edi
  call   <assert@plt>
  mov    -0xc(%rbp),%eax
  cmp    -0x10(%rbp),%eax
  jle    L144
  cmpl   $0x0,-0x10(%rbp)
  jne    L274
L144:
  mov    $0x1,%eax
  jmp    L124
L274:
  mov    $0x0,%eax
L124:
  mov    %eax,%edi
  call   <assert@plt>
  cmpl   $0x0,-0x4(%rbp)
  jne    L53
  cmpl   $0x0,-0x8(%rbp)
  jne    L53
  mov    $0x1,%eax
  jmp    L139
L53:
  cmpl   $0x0,-0xc(%rbp)
  jne    L46
  cmpl   $0x0,-0x10(%rbp)
  jne    L46
  mov    $0x1,%eax
  jmp    L139
L46:
  cmpl   $0x0,-0x4(%rbp)
  jne    L80
  cmpl   $0x0,-0x8(%rbp)
  setne  %al
  movzbl %al,%eax
  mov    %eax,%edi
  call   <assert@plt>
  mov    -0x8(%rbp),%eax
  cmp    -0xc(%rbp),%eax
  setg   %al
  movzbl %al,%eax
  jmp    L139
L80:
  cmpl   $0x0,-0xc(%rbp)
  jne    L94
  cmpl   $0x0,-0x10(%rbp)
  setne  %al
  movzbl %al,%eax
  mov    %eax,%edi
  call   <assert@plt>
  mov    -0x10(%rbp),%eax
  cmp    -0x4(%rbp),%eax
  setg   %al
  movzbl %al,%eax
  jmp    L139
L94:
  cmpl   $0x0,-0x8(%rbp)
  jne    L263
  mov    -0x4(%rbp),%eax
  cmp    -0x10(%rbp),%eax
  jl     L234
  cmpl   $0x0,-0x10(%rbp)
  jne    L98
L234:
  mov    $0x1,%eax
  jmp    L139
L98:
  mov    $0x0,%eax
  jmp    L139
L263:
  cmpl   $0x0,-0x10(%rbp)
  jne    L73
  cmpl   $0x0,-0x8(%rbp)
  setne  %al
  movzbl %al,%eax
  mov    %eax,%edi
  call   <assert@plt>
  mov    -0xc(%rbp),%eax
  cmp    -0x8(%rbp),%eax
  setl   %al
  movzbl %al,%eax
  jmp    L139
L73:
  cmpl   $0x0,-0x4(%rbp)
  je     L239
  cmpl   $0x0,-0x8(%rbp)
  je     L239
  cmpl   $0x0,-0xc(%rbp)
  je     L239
  cmpl   $0x0,-0x10(%rbp)
  je     L239
  mov    $0x1,%eax
  jmp    L214
L239:
  mov    $0x0,%eax
L214:
  mov    %eax,%edi
  call   <assert@plt>
  mov    -0x4(%rbp),%eax
  cmp    -0x10(%rbp),%eax
  jge    L303
  mov    -0xc(%rbp),%eax
  cmp    -0x8(%rbp),%eax
  jge    L303
  mov    $0x1,%eax
  jmp    L139
L303:
  mov    $0x0,%eax
L139:
  leave
  ret
```

assistant: ```c
int ranges_overlap(int start1, int end1, int start2, int end2) {
  assert(start1 >= 0);
  assert(end1 >= 0);
  assert(start1 <= end1 || end1 == 0);
  assert(start2 >= 0);
  assert(end2 >= 0);
  assert(start2 <= end2 || end2 == 0);
  if (start1 == 0 && end1 == 0) {
    return 1;
  } else if (start2 == 0 && end2 == 0) {
    return 1;
  } else if (start1 == 0) {
    assert(end1 != 0);
    return (end1 > start2);
  } else if (start2 == 0) {
    assert(end2 != 0);
    return (end2 > start1);
  } else if (end1 == 0) {
    return (start1 < end2 || end2 == 0);
  } else if (end2 == 0) {
    assert(end1 != 0);
    return (start2 < end1);
  } else {
    assert(start1 != 0 && end1 != 0 && start2 != 0 && end2 != 0);
    return (start1 < end2 && start2 < end1);
  }
}
```