int rsock_family_to_int(const char *str, long len, int *valp) {
  switch (len) {
  case 2:
    return -1;
  case 3:
    return -1;
  case 4:
    return -1;
  case 5:
    return -1;
  case 6:
    return -1;
  case 7:
    return -1;
  case 8:
    return -1;
  case 9:
    return -1;
  case 10:
    return -1;
  case 11:
    return -1;
  case 12:
    return -1;
  default:
    if (!str || !valp) {
    }
    return -1;
  }
}


x86 assembly (clang, -O0):
<rsock_family_to_int>:
push   %rbp
mov    %rsp,%rbp
mov    %rdi,-0x10(%rbp)
mov    %rsi,-0x18(%rbp)
mov    %rdx,-0x20(%rbp)
mov    -0x18(%rbp),%rax
add    $0xfffffffffffffffe,%rax
mov    %rax,-0x28(%rbp)
sub    $0xa,%rax
ja     11be <rsock_family_to_int+0xbe>
mov    -0x28(%rbp),%rax
lea    0xecf(%rip),%rcx
movslq (%rcx,%rax,4),%rax
add    %rcx,%rax
jmp    *%rax
movl   $0xffffffff,-0x4(%rbp)
jmp    11e0 <rsock_family_to_int+0xe0>
movl   $0xffffffff,-0x4(%rbp)
jmp    11e0 <rsock_family_to_int+0xe0>
movl   $0xffffffff,-0x4(%rbp)
jmp    11e0 <rsock_family_to_int+0xe0>
movl   $0xffffffff,-0x4(%rbp)
jmp    11e0 <rsock_family_to_int+0xe0>
movl   $0xffffffff,-0x4(%rbp)
jmp    11e0 <rsock_family_to_int+0xe0>
movl   $0xffffffff,-0x4(%rbp)
jmp    11e0 <rsock_family_to_int+0xe0>
movl   $0xffffffff,-0x4(%rbp)
jmp    11e0 <rsock_family_to_int+0xe0>
movl   $0xffffffff,-0x4(%rbp)
jmp    11e0 <rsock_family_to_int+0xe0>
movl   $0xffffffff,-0x4(%rbp)
jmp    11e0 <rsock_family_to_int+0xe0>
movl   $0xffffffff,-0x4(%rbp)
jmp    11e0 <rsock_family_to_int+0xe0>
movl   $0xffffffff,-0x4(%rbp)
jmp    11e0 <rsock_family_to_int+0xe0>
cmpq   $0x0,-0x10(%rbp)
je     11d4 <rsock_family_to_int+0xd4>
cmpq   $0x0,-0x20(%rbp)
jne    11d9 <rsock_family_to_int+0xd9>
jmp    11d9 <rsock_family_to_int+0xd9>
movl   $0xffffffff,-0x4(%rbp)
mov    -0x4(%rbp),%eax
pop    %rbp
ret

x86 assembly (clang, -O2):
<rsock_family_to_int>:
mov    $0xffffffff,%eax
ret

LLVM IR (-O0):
define i32 @rsock_family_to_int(i8* %0, i64 %1, i32* %2) {
%4 = alloca i32
%5 = alloca i8*
%6 = alloca i64
%7 = alloca i32*
store i8* %0, i8** %5
store i64 %1, i64* %6
store i32* %2, i32** %7
%8 = load i64, i64* %6
switch i64 %8, label %20 [
i64 2, label %9
i64 3, label %10
i64 4, label %11
i64 5, label %12
i64 6, label %13
i64 7, label %14
i64 8, label %15
i64 9, label %16
i64 10, label %17
i64 11, label %18
i64 12, label %19
]
9: ; preds = %3
store i32 -1, i32* %4
br label %28
10: ; preds = %3
store i32 -1, i32* %4
br label %28
11: ; preds = %3
store i32 -1, i32* %4
br label %28
12: ; preds = %3
store i32 -1, i32* %4
br label %28
13: ; preds = %3
store i32 -1, i32* %4
br label %28
14: ; preds = %3
store i32 -1, i32* %4
br label %28
15: ; preds = %3
store i32 -1, i32* %4
br label %28
16: ; preds = %3
store i32 -1, i32* %4
br label %28
17: ; preds = %3
store i32 -1, i32* %4
br label %28
18: ; preds = %3
store i32 -1, i32* %4
br label %28
19: ; preds = %3
store i32 -1, i32* %4
br label %28
20: ; preds = %3
%21 = load i8*, i8** %5
%22 = icmp ne i8* %21, null
br i1 %22, label %23, label %26
23: ; preds = %20
%24 = load i32*, i32** %7
%25 = icmp ne i32* %24, null
br i1 %25, label %27, label %26
26: ; preds = %23, %20
br label %27
27: ; preds = %26, %23
store i32 -1, i32* %4
br label %28
28: ; preds = %27, %19, %18, %17, %16, %15, %14, %13, %12, %11, %10, %9
%29 = load i32, i32* %4
ret i32 %29
}

LLVM IR (-O2):
define i32 @rsock_family_to_int(i8* nocapture readnone %0, i64 %1, i32* nocapture readnone %2) {
ret i32 -1
}