#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*/ puts(char *);
int /*<<< orphan*/ scanf(char *, int *);
int exibe_menu() {
  int opcao;
  puts("\tAGENDA:");
  puts("\n");
  puts(" 1. Adicionar Contato");
  puts(" 2. Listar Contatos");
  puts(" 3. Sair");
  puts("\n");
  printf("Opcao: ");
  scanf("%i", &opcao);
  return opcao;
}


x86 assembly (clang, -O0):
<exibe_menu>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
lea    0xec1(%rip),%rdi
call   1030 <puts@plt>
lea    0xebe(%rip),%rdi
call   1030 <puts@plt>
lea    0xeb4(%rip),%rdi
call   1030 <puts@plt>
lea    0xebe(%rip),%rdi
call   1030 <puts@plt>
lea    0xec6(%rip),%rdi
call   1030 <puts@plt>
lea    0xe8e(%rip),%rdi
call   1030 <puts@plt>
lea    0xeb7(%rip),%rdi
call   1040 <printf@plt>
lea    0xeb3(%rip),%rdi
lea    -0x4(%rbp),%rsi
call   1050 <scanf@plt>
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<exibe_menu>:
push   %rbx
sub    $0x10,%rsp
lea    0xec4(%rip),%rdi
call   1030 <puts@plt>
lea    0xec1(%rip),%rbx
mov    %rbx,%rdi
call   1030 <puts@plt>
lea    0xeb4(%rip),%rdi
call   1030 <puts@plt>
lea    0xebe(%rip),%rdi
call   1030 <puts@plt>
lea    0xec6(%rip),%rdi
call   1030 <puts@plt>
mov    %rbx,%rdi
call   1030 <puts@plt>
lea    0xebb(%rip),%rdi
call   1040 <printf@plt>
lea    0xeb7(%rip),%rdi
lea    0xc(%rsp),%rsi
call   1050 <scanf@plt>
mov    0xc(%rsp),%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [9 x i8] c"\09AGENDA:\00"
@.str.1 = [2 x i8] c"\0A\00"
@.str.2 = [22 x i8] c" 1. Adicionar Contato\00"
@.str.3 = [20 x i8] c" 2. Listar Contatos\00"
@.str.4 = [9 x i8] c" 3. Sair\00"
@.str.5 = [8 x i8] c"Opcao: \00"
@.str.6 = [3 x i8] c"%i\00"
define i32 @exibe_menu() {
%1 = alloca i32
%2 = call i32 @puts(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0))
%3 = call i32 @puts(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
%4 = call i32 @puts(i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str.2, i64 0, i64 0))
%5 = call i32 @puts(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.3, i64 0, i64 0))
%6 = call i32 @puts(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.4, i64 0, i64 0))
%7 = call i32 @puts(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
%8 = call i32 @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.5, i64 0, i64 0))
%9 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.6, i64 0, i64 0), i32* %1)
%10 = load i32, i32* %1
ret i32 %10
}

LLVM IR (-O2):
@.str = [9 x i8] c"\09AGENDA:\00"
@.str.1 = [2 x i8] c"\0A\00"
@.str.2 = [22 x i8] c" 1. Adicionar Contato\00"
@.str.3 = [20 x i8] c" 2. Listar Contatos\00"
@.str.4 = [9 x i8] c" 3. Sair\00"
@.str.5 = [8 x i8] c"Opcao: \00"
@.str.6 = [3 x i8] c"%i\00"
define i32 @exibe_menu() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([9 x i8], [9 x i8]* @.str, i64 0, i64 0))
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([22 x i8], [22 x i8]* @.str.2, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([20 x i8], [20 x i8]* @.str.3, i64 0, i64 0))
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([9 x i8], [9 x i8]* @.str.4, i64 0, i64 0))
%8 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
%9 = tail call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([8 x i8], [8 x i8]* @.str.5, i64 0, i64 0))
%10 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.6, i64 0, i64 0), i32* %1)
%11 = load i32, i32* %1
ret i32 %11
}