#define NULL ((void *)0)
typedef unsigned long size_t; // Customize by platform.
typedef long intptr_t;
typedef unsigned long uintptr_t;
typedef long scalar_t__; // Either arithmetic or pointer type.
/* By default, we understand bool (as a convenience). */
typedef int bool;
#define false 0
#define true 1

/* Forward declarations */

/* Type definitions */

/* Variables and functions */
int strcmp(char const *, char const *);
int strlen(char const *);
int right_hand_strcmp(const char *cookie_domain, const char *url_domain) {
  int c_l;
  int u_l;
  c_l = strlen(cookie_domain);
  u_l = strlen(url_domain);
  if (c_l > u_l)
    return -1;
  return strcmp(cookie_domain, url_domain + u_l - c_l);
}


x86 assembly (clang, -O0):
<right_hand_strcmp>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x10(%rbp)
mov    %rsi,-0x18(%rbp)
mov    -0x10(%rbp),%rdi
call   1030 <strlen@plt>
mov    %eax,-0x1c(%rbp)
mov    -0x18(%rbp),%rdi
call   1030 <strlen@plt>
mov    %eax,-0x20(%rbp)
mov    -0x1c(%rbp),%eax
cmp    -0x20(%rbp),%eax
jle    1160 <right_hand_strcmp+0x40>
movl   $0xffffffff,-0x4(%rbp)
jmp    1183 <right_hand_strcmp+0x63>
mov    -0x10(%rbp),%rdi
mov    -0x18(%rbp),%rsi
movslq -0x20(%rbp),%rax
add    %rax,%rsi
movslq -0x1c(%rbp),%rcx
xor    %eax,%eax
sub    %rcx,%rax
add    %rax,%rsi
call   1040 <strcmp@plt>
mov    %eax,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<right_hand_strcmp>:
push   %rbp
push   %r14
push   %rbx
mov    %rsi,%rbx
mov    %rdi,%r14
call   1030 <strlen@plt>
mov    %eax,%ebp
mov    %rbx,%rdi
call   1030 <strlen@plt>
cmp    %eax,%ebp
jle    1147 <right_hand_strcmp+0x27>
mov    $0xffffffff,%eax
pop    %rbx
pop    %r14
pop    %rbp
ret
cltq
add    %rax,%rbx
movslq %ebp,%rax
sub    %rax,%rbx
mov    %r14,%rdi
mov    %rbx,%rsi
pop    %rbx
pop    %r14
pop    %rbp
jmp    1040 <strcmp@plt>

LLVM IR (-O0):
define i32 @right_hand_strcmp(i8* %0, i8* %1) {
%3 = alloca i32
%4 = alloca i8*
%5 = alloca i8*
%6 = alloca i32
%7 = alloca i32
store i8* %0, i8** %4
store i8* %1, i8** %5
%8 = load i8*, i8** %4
%9 = call i32 @strlen(i8* %8)
store i32 %9, i32* %6
%10 = load i8*, i8** %5
%11 = call i32 @strlen(i8* %10)
store i32 %11, i32* %7
%12 = load i32, i32* %6
%13 = load i32, i32* %7
%14 = icmp sgt i32 %12, %13
br i1 %14, label %15, label %16
15: ; preds = %2
store i32 -1, i32* %3
br label %27
16: ; preds = %2
%17 = load i8*, i8** %4
%18 = load i8*, i8** %5
%19 = load i32, i32* %7
%20 = sext i32 %19 to i64
%21 = getelementptr inbounds i8, i8* %18, i64 %20
%22 = load i32, i32* %6
%23 = sext i32 %22 to i64
%24 = sub i64 0, %23
%25 = getelementptr inbounds i8, i8* %21, i64 %24
%26 = call i32 @strcmp(i8* %17, i8* %25)
store i32 %26, i32* %3
br label %27
27: ; preds = %16, %15
%28 = load i32, i32* %3
ret i32 %28
}

LLVM IR (-O2):
define i32 @right_hand_strcmp(i8* %0, i8* %1) {
%3 = tail call i32 @strlen(i8* %0)
%4 = tail call i32 @strlen(i8* %1)
%5 = icmp sgt i32 %3, %4
br i1 %5, label %13, label %6
6: ; preds = %2
%7 = sext i32 %4 to i64
%8 = getelementptr inbounds i8, i8* %1, i64 %7
%9 = sext i32 %3 to i64
%10 = sub nsw i64 0, %9
%11 = getelementptr inbounds i8, i8* %8, i64 %10
%12 = tail call i32 @strcmp(i8* dereferenceable(1) %0, i8* dereferenceable(1) %11)
br label %13
13: ; preds = %2, %6
%14 = phi i32 [ %12, %6 ], [ -1, %2 ]
ret i32 %14
}