#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 EXIT_SUCCESS;
int /*<<< orphan*/ printf(char *, int);
int strend(char *, char *);
int main() {
  char *a = "hello,world!";
  char *b = "world!";
  char *c = "hello";
  printf("%d\n", strend(a, b));
  printf("%d\n", strend(a, c));
  return EXIT_SUCCESS;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rax
mov    %rax,-0x10(%rbp)
lea    0xec5(%rip),%rax
mov    %rax,-0x18(%rbp)
lea    0xec1(%rip),%rax
mov    %rax,-0x20(%rbp)
mov    -0x10(%rbp),%rdi
mov    -0x18(%rbp),%rsi
call   1040 <strend@plt>
mov    %eax,%esi
lea    0xead(%rip),%rdi
call   1030 <printf@plt>
mov    -0x10(%rbp),%rdi
mov    -0x20(%rbp),%rsi
call   1040 <strend@plt>
mov    %eax,%esi
lea    0xe92(%rip),%rdi
call   1030 <printf@plt>
mov    0x2e53(%rip),%rax
mov    (%rax),%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
push   %rax
lea    0xed5(%rip),%r14
lea    0xed4(%rip),%rsi
mov    %r14,%rdi
call   1040 <strend@plt>
lea    0xed2(%rip),%rbx
mov    %rbx,%rdi
mov    %eax,%esi
call   1030 <printf@plt>
lea    0xebb(%rip),%rsi
mov    %r14,%rdi
call   1040 <strend@plt>
mov    %rbx,%rdi
mov    %eax,%esi
call   1030 <printf@plt>
mov    0x2e75(%rip),%rax
mov    (%rax),%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
ret

LLVM IR (-O0):
@.str = [13 x i8] c"hello,world!\00"
@.str.1 = [7 x i8] c"world!\00"
@.str.2 = [6 x i8] c"hello\00"
@.str.3 = [4 x i8] c"%d\0A\00"
@EXIT_SUCCESS = global i32 0
define i32 @main() {
%1 = alloca i32
%2 = alloca i8*
%3 = alloca i8*
%4 = alloca i8*
store i32 0, i32* %1
store i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0), i8** %2
store i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0), i8** %3
store i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0), i8** %4
%5 = load i8*, i8** %2
%6 = load i8*, i8** %3
%7 = call i32 @strend(i8* %5, i8* %6)
%8 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i32 %7)
%9 = load i8*, i8** %2
%10 = load i8*, i8** %4
%11 = call i32 @strend(i8* %9, i8* %10)
%12 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i32 %11)
%13 = load i32, i32* @EXIT_SUCCESS
ret i32 %13
}

LLVM IR (-O2):
@.str = [13 x i8] c"hello,world!\00"
@.str.1 = [7 x i8] c"world!\00"
@.str.2 = [6 x i8] c"hello\00"
@.str.3 = [4 x i8] c"%d\0A\00"
@EXIT_SUCCESS = global i32 0
define i32 @main() {
%1 = tail call i32 @strend(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0))
%2 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i32 %1)
%3 = tail call i32 @strend(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0))
%4 = tail call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i32 %3)
%5 = load i32, i32* @EXIT_SUCCESS
ret i32 %5
}