#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*/ LC_ALL;
int fibrec(int);
int /*<<< orphan*/ getch();
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, int *);
int /*<<< orphan*/ setlocale(int /*<<< orphan*/, char *);
main() {
  setlocale(LC_ALL, "Portuguese");
  int n;
  int x;
  printf("Entre com um numero inteiro positivo: ");
  scanf("%d", &n);
  x = fibrec(n);
  printf("%d", x);
  getch();
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    0x2e81(%rip),%rax
mov    (%rax),%edi
lea    0xe98(%rip),%rsi
call   1040 <setlocale@plt>
lea    0xe97(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xeb0(%rip),%rdi
lea    -0x4(%rbp),%rsi
call   1050 <scanf@plt>
mov    -0x4(%rbp),%edi
call   1070 <fibrec@plt>
mov    %eax,-0x8(%rbp)
mov    -0x8(%rbp),%esi
lea    0xe92(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    $0x0,%al
call   1060 <getch@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
mov    0x2e84(%rip),%rax
mov    (%rax),%edi
lea    0xe9b(%rip),%rsi
call   1040 <setlocale@plt>
lea    0xe9a(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xeb3(%rip),%rbx
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
mov    0xc(%rsp),%edi
call   1070 <fibrec@plt>
mov    %rbx,%rdi
mov    %eax,%esi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
call   1060 <getch@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@LC_ALL = global i32 0
@.str = [11 x i8] c"Portuguese\00"
@.str.1 = [39 x i8] c"Entre com um numero inteiro positivo: \00"
@.str.2 = [3 x i8] c"%d\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = load i32, i32* @LC_ALL
%4 = call i32 @setlocale(i32 %3, i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0))
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([39 x i8], [39 x i8]* @.str.1, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %1)
%7 = load i32, i32* %1
%8 = call i32 @fibrec(i32 %7)
store i32 %8, i32* %2
%9 = load i32, i32* %2
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32 %9)
%11 = call i32 (...) @getch()
ret i32 0
}

LLVM IR (-O2):
@LC_ALL = global i32 0
@.str = [11 x i8] c"Portuguese\00"
@.str.1 = [39 x i8] c"Entre com um numero inteiro positivo: \00"
@.str.2 = [3 x i8] c"%d\00"
define i32 @main() {
%1 = alloca i32
%2 = load i32, i32* @LC_ALL
%3 = tail call i32 @setlocale(i32 %2, i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str, i64 0, i64 0))
%4 = bitcast i32* %1 to i8*
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([39 x i8], [39 x i8]* @.str.1, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %1)
%7 = load i32, i32* %1
%8 = call i32 @fibrec(i32 %7)
%9 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32 %8)
%10 = call i32 (...) @getch()
ret i32 0
}