#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 /*<<< orphan*/ printf(char *);
int strcoll(char *, char *);
int /*<<< orphan*/ strcpy(char *, char *);
int main() {
  char string1[15];
  char string2[15];
  int resultado;
  strcpy(string1, "xpto");
  strcpy(string2, "XPTO");
  resultado = strcoll(string1, string2);
  if (resultado == 0) {
    printf("As duas strings sao iguais!");
  } else {
    printf("As duas strings sao diferentes!");
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x30,%rsp
movl   $0x0,-0x4(%rbp)
lea    -0x13(%rbp),%rdi
lea    0xeb6(%rip),%rsi
call   1030 <strcpy@plt>
lea    -0x22(%rbp),%rdi
lea    0xeab(%rip),%rsi
call   1030 <strcpy@plt>
lea    -0x13(%rbp),%rdi
lea    -0x22(%rbp),%rsi
call   1050 <strcoll@plt>
mov    %eax,-0x28(%rbp)
cmpl   $0x0,-0x28(%rbp)
jne    118a <main+0x5a>
lea    0xe8a(%rip),%rdi
call   1040 <printf@plt>
jmp    1196 <main+0x66>
lea    0xe95(%rip),%rdi
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x30,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
sub    $0x28,%rsp
lea    0xec2(%rip),%rsi
lea    0x19(%rsp),%r14
mov    %r14,%rdi
call   1030 <strcpy@plt>
lea    0xeb3(%rip),%rsi
lea    0xa(%rsp),%rbx
mov    %rbx,%rdi
call   1030 <strcpy@plt>
mov    %r14,%rdi
mov    %rbx,%rsi
call   1050 <strcoll@plt>
test   %eax,%eax
lea    0xe97(%rip),%rax
lea    0xeac(%rip),%rdi
cmove  %rax,%rdi
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x28,%rsp
pop    %rbx
pop    %r14
ret

LLVM IR (-O0):
@.str = [5 x i8] c"xpto\00"
@.str.1 = [5 x i8] c"XPTO\00"
@.str.2 = [28 x i8] c"As duas strings sao iguais!\00"
@.str.3 = [32 x i8] c"As duas strings sao diferentes!\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca [15 x i8]
%3 = alloca [15 x i8]
%4 = alloca i32
store i32 0, i32* %1
%5 = getelementptr inbounds [15 x i8], [15 x i8]* %2, i64 0, i64 0
%6 = call i32 @strcpy(i8* %5, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0))
%7 = getelementptr inbounds [15 x i8], [15 x i8]* %3, i64 0, i64 0
%8 = call i32 @strcpy(i8* %7, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0))
%9 = getelementptr inbounds [15 x i8], [15 x i8]* %2, i64 0, i64 0
%10 = getelementptr inbounds [15 x i8], [15 x i8]* %3, i64 0, i64 0
%11 = call i32 @strcoll(i8* %9, i8* %10)
store i32 %11, i32* %4
%12 = load i32, i32* %4
%13 = icmp eq i32 %12, 0
br i1 %13, label %14, label %16
14: ; preds = %0
%15 = call i32 @printf(i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.str.2, i64 0, i64 0))
br label %18
16: ; preds = %0
%17 = call i32 @printf(i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str.3, i64 0, i64 0))
br label %18
18: ; preds = %16, %14
ret i32 0
}

LLVM IR (-O2):
@.str = [5 x i8] c"xpto\00"
@.str.1 = [5 x i8] c"XPTO\00"
@.str.2 = [28 x i8] c"As duas strings sao iguais!\00"
@.str.3 = [32 x i8] c"As duas strings sao diferentes!\00"
define i32 @main() {
%1 = alloca [15 x i8]
%2 = alloca [15 x i8]
%3 = getelementptr inbounds [15 x i8], [15 x i8]* %1, i64 0, i64 0
%4 = getelementptr inbounds [15 x i8], [15 x i8]* %2, i64 0, i64 0
%5 = call i32 @strcpy(i8* %3, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0))
%6 = call i32 @strcpy(i8* %4, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0))
%7 = call i32 @strcoll(i8* %3, i8* %4)
%8 = icmp eq i32 %7, 0
%9 = select i1 %8, i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.str.2, i64 0, i64 0), i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str.3, i64 0, i64 0)
%10 = call i32 @printf(i8* dereferenceable(1) %9)
ret i32 0
}