#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 /*<<< orphan*/ scanf(char *, int *);
int /*<<< orphan*/ system(char *);
int menu() {
  int opc;
  system("clear");
  printf("##################################\n");
  printf("              MENU                \n");
  printf("1 - Cadastrar carro\n");
  printf("2 - Listar todos os carros\n");
  printf("3 - Sobrescrever\n\n");
  printf("0 - Sair\n\n");
  printf("Escolha uma opcao: ");
  scanf("%d", &opc);
  return opc;
}


x86 assembly (clang, -O0):
<menu>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
lea    0xec1(%rip),%rdi
call   1030 <system@plt>
lea    0xebb(%rip),%rdi
call   1040 <printf@plt>
lea    0xed3(%rip),%rdi
call   1040 <printf@plt>
lea    0xeeb(%rip),%rdi
call   1040 <printf@plt>
lea    0xef4(%rip),%rdi
call   1040 <printf@plt>
lea    0xf04(%rip),%rdi
call   1040 <printf@plt>
lea    0xf0b(%rip),%rdi
call   1040 <printf@plt>
lea    0xf0a(%rip),%rdi
call   1040 <printf@plt>
lea    0xf12(%rip),%rdi
lea    -0x4(%rbp),%rsi
call   1050 <scanf@plt>
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<menu>:
push   %rax
lea    0xeb8(%rip),%rdi
call   1040 <system@plt>
lea    0xec9(%rip),%rdi
call   1030 <puts@plt>
lea    0xee0(%rip),%rdi
call   1030 <puts@plt>
lea    0xef7(%rip),%rdi
call   1030 <puts@plt>
lea    0xeff(%rip),%rdi
call   1030 <puts@plt>
lea    0xf0e(%rip),%rdi
call   1030 <puts@plt>
lea    0xf14(%rip),%rdi
call   1030 <puts@plt>
lea    0xe6a(%rip),%rdi
call   1050 <printf@plt>
lea    0xe72(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1060 <scanf@plt>
mov    0x4(%rsp),%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [6 x i8] c"clear\00"
@.str.1 = [36 x i8] c"##################################\0A\00"
@.str.2 = [36 x i8] c" MENU \0A\00"
@.str.3 = [21 x i8] c"1 - Cadastrar carro\0A\00"
@.str.4 = [28 x i8] c"2 - Listar todos os carros\0A\00"
@.str.5 = [19 x i8] c"3 - Sobrescrever\0A\0A\00"
@.str.6 = [11 x i8] c"0 - Sair\0A\0A\00"
@.str.7 = [20 x i8] c"Escolha uma opcao: \00"
@.str.8 = [3 x i8] c"%d\00"
define i32 @menu() {
%1 = alloca i32
%2 = call i32 @system(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0))
%3 = call i32 @printf(i8* getelementptr inbounds ([36 x i8], [36 x i8]* @.str.1, i64 0, i64 0))
%4 = call i32 @printf(i8* getelementptr inbounds ([36 x i8], [36 x i8]* @.str.2, i64 0, i64 0))
%5 = call i32 @printf(i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str.3, i64 0, i64 0))
%6 = call i32 @printf(i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.str.4, i64 0, i64 0))
%7 = call i32 @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.5, i64 0, i64 0))
%8 = call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.6, i64 0, i64 0))
%9 = call i32 @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.7, i64 0, i64 0))
%10 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.8, i64 0, i64 0), i32* %1)
%11 = load i32, i32* %1
ret i32 %11
}

LLVM IR (-O2):
@.str = [6 x i8] c"clear\00"
@.str.7 = [20 x i8] c"Escolha uma opcao: \00"
@.str.8 = [3 x i8] c"%d\00"
@str = [35 x i8] c"##################################\00"
@str.9 = [35 x i8] c" MENU \00"
@str.10 = [20 x i8] c"1 - Cadastrar carro\00"
@str.11 = [27 x i8] c"2 - Listar todos os carros\00"
@str.12 = [18 x i8] c"3 - Sobrescrever\0A\00"
@str.13 = [10 x i8] c"0 - Sair\0A\00"
define i32 @menu() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 @system(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str, i64 0, i64 0))
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([35 x i8], [35 x i8]* @str, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([35 x i8], [35 x i8]* @str.9, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([20 x i8], [20 x i8]* @str.10, i64 0, i64 0))
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([27 x i8], [27 x i8]* @str.11, i64 0, i64 0))
%8 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([18 x i8], [18 x i8]* @str.12, i64 0, i64 0))
%9 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([10 x i8], [10 x i8]* @str.13, i64 0, i64 0))
%10 = tail call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([20 x i8], [20 x i8]* @.str.7, i64 0, i64 0))
%11 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.8, i64 0, i64 0), i32* %1)
%12 = load i32, i32* %1
ret i32 %12
}