#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 EXIT_SUCCESS;
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, int *);
int main() {
  int numero;
  printf("Escriba un número:\n");
  scanf("%i", &numero);
  if (numero % 2 == 0)
    printf("El número %i es par\n", numero);
  else
    printf("El número %i es impar\n", numero);
  return EXIT_SUCCESS;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xed1(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
mov    -0x8(%rbp),%eax
mov    $0x2,%ecx
cltd
idiv   %ecx
cmp    $0x0,%edx
jne    1177 <main+0x57>
mov    -0x8(%rbp),%esi
lea    0xead(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    1188 <main+0x68>
mov    -0x8(%rbp),%esi
lea    0xead(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    0x2e51(%rip),%rax
mov    (%rax),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xef9(%rip),%rdi
call   1030 <puts@plt>
lea    0xebc(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1050 <scanf@plt>
mov    0x4(%rsp),%esi
test   $0x1,%sil
lea    0xea6(%rip),%rax
lea    0xeb5(%rip),%rdi
cmove  %rax,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x2e6a(%rip),%rax
mov    (%rax),%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [21 x i8] c"Escriba un n\C3\BAmero:\0A\00"
@.str.1 = [3 x i8] c"%i\00"
@.str.2 = [22 x i8] c"El n\C3\BAmero %i es par\0A\00"
@.str.3 = [24 x i8] c"El n\C3\BAmero %i es impar\0A\00"
@EXIT_SUCCESS = global i32 0
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %1
%3 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str, i64 0, i64 0))
%4 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %2)
%5 = load i32, i32* %2
%6 = srem i32 %5, 2
%7 = icmp eq i32 %6, 0
br i1 %7, label %8, label %11
8: ; preds = %0
%9 = load i32, i32* %2
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str.2, i64 0, i64 0), i32 %9)
br label %14
11: ; preds = %0
%12 = load i32, i32* %2
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([24 x i8], [24 x i8]* @.str.3, i64 0, i64 0), i32 %12)
br label %14
14: ; preds = %11, %8
%15 = load i32, i32* @EXIT_SUCCESS
ret i32 %15
}

LLVM IR (-O2):
@.str.1 = [3 x i8] c"%i\00"
@.str.2 = [22 x i8] c"El n\C3\BAmero %i es par\0A\00"
@.str.3 = [24 x i8] c"El n\C3\BAmero %i es impar\0A\00"
@EXIT_SUCCESS = global i32 0
@str = [20 x i8] c"Escriba un n\C3\BAmero:\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([20 x i8], [20 x i8]* @str, i64 0, i64 0))
%4 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %1)
%5 = load i32, i32* %1
%6 = and i32 %5, 1
%7 = icmp eq i32 %6, 0
%8 = select i1 %7, i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str.2, i64 0, i64 0), i8* getelementptr inbounds ([24 x i8], [24 x i8]* @.str.3, i64 0, i64 0)
%9 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) %8, i32 %5)
%10 = load i32, i32* @EXIT_SUCCESS
ret i32 %10
}