#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 abs(int);
int fatorial(int);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, int *);
int /*<<< orphan*/ setlocale(int /*<<< orphan*/, char *);
int main() {
  setlocale(LC_ALL, "");
  int n;
  printf("Insira N!: ");
  scanf("%d", &n);
  n = abs(n);
  printf("Fatorial de %d! é: %d\n", n, fatorial(n));
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
mov    0x2e7a(%rip),%rax
mov    (%rax),%edi
lea    0xeb7(%rip),%rsi
call   1060 <setlocale@plt>
lea    0xe85(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xe83(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1070 <scanf@plt>
mov    -0x8(%rbp),%edi
call   1030 <abs@plt>
mov    %eax,-0x8(%rbp)
mov    -0x8(%rbp),%eax
mov    %eax,-0xc(%rbp)
mov    -0x8(%rbp),%edi
call   1050 <fatorial@plt>
mov    -0xc(%rbp),%esi
mov    %eax,%edx
lea    0xe58(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
mov    0x2e94(%rip),%rax
mov    (%rax),%edi
lea    0xed1(%rip),%rsi
call   1050 <setlocale@plt>
lea    0xe9f(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xe9d(%rip),%rdi
lea    0xc(%rsp),%rsi
call   1060 <scanf@plt>
mov    0xc(%rsp),%eax
mov    %eax,%ebx
neg    %ebx
cmovs  %eax,%ebx
mov    %ebx,0xc(%rsp)
mov    %ebx,%edi
call   1040 <fatorial@plt>
lea    0xe79(%rip),%rdi
mov    %ebx,%esi
mov    %eax,%edx
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@LC_ALL = global i32 0
@.str = [1 x i8] zeroinitializer
@.str.1 = [12 x i8] c"Insira N!: \00"
@.str.2 = [3 x i8] c"%d\00"
@.str.3 = [24 x i8] c"Fatorial de %d! \C3\A9: %d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %1
%3 = load i32, i32* @LC_ALL
%4 = call i32 @setlocale(i32 %3, i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i64 0, i64 0))
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([12 x i8], [12 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* %2)
%7 = load i32, i32* %2
%8 = call i32 @abs(i32 %7)
store i32 %8, i32* %2
%9 = load i32, i32* %2
%10 = load i32, i32* %2
%11 = call i32 @fatorial(i32 %10)
%12 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([24 x i8], [24 x i8]* @.str.3, i64 0, i64 0), i32 %9, i32 %11)
ret i32 0
}

LLVM IR (-O2):
@LC_ALL = global i32 0
@.str = [1 x i8] zeroinitializer
@.str.1 = [12 x i8] c"Insira N!: \00"
@.str.2 = [3 x i8] c"%d\00"
@.str.3 = [24 x i8] c"Fatorial de %d! \C3\A9: %d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = load i32, i32* @LC_ALL
%3 = tail call i32 @setlocale(i32 %2, i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i64 0, i64 0))
%4 = bitcast i32* %1 to i8*
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([12 x i8], [12 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 @llvm.abs.i32(i32 %7, i1 true)
store i32 %8, i32* %1
%9 = call i32 @fatorial(i32 %8)
%10 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([24 x i8], [24 x i8]* @.str.3, i64 0, i64 0), i32 %8, i32 %9)
ret i32 0
}