#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 main(void) {
  int a;
  printf("Introduce un entero a: ");
  scanf("%d", &a);
  if (a % 2 == 0) {
    printf("El valor de a es par.\n");
    if (a > 0) {
      printf("Y, ademas, es positivo.\n");
    }
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
call   1030 <printf@plt>
lea    0xed6(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
mov    -0x8(%rbp),%eax
mov    $0x2,%ecx
cltd
idiv   %ecx
cmp    $0x0,%edx
jne    1186 <main+0x66>
lea    0xeb5(%rip),%rdi
call   1030 <printf@plt>
cmpl   $0x0,-0x8(%rbp)
jle    1181 <main+0x61>
lea    0xeb6(%rip),%rdi
call   1030 <printf@plt>
jmp    1186 <main+0x66>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xec8(%rip),%rdi
call   1040 <printf@plt>
lea    0xed4(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1050 <scanf@plt>
testb  $0x1,0x4(%rsp)
jne    1174 <main+0x44>
lea    0xebf(%rip),%rdi
call   1030 <puts@plt>
cmpl   $0x0,0x4(%rsp)
jle    1174 <main+0x44>
lea    0xec2(%rip),%rdi
call   1030 <puts@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [24 x i8] c"Introduce un entero a: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [23 x i8] c"El valor de a es par.\0A\00"
@.str.3 = [25 x i8] c"Y, ademas, es positivo.\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %1
%3 = call i32 @printf(i8* getelementptr inbounds ([24 x i8], [24 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 %15
8: ; preds = %0
%9 = call i32 @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.2, i64 0, i64 0))
%10 = load i32, i32* %2
%11 = icmp sgt i32 %10, 0
br i1 %11, label %12, label %14
12: ; preds = %8
%13 = call i32 @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.3, i64 0, i64 0))
br label %14
14: ; preds = %12, %8
br label %15
15: ; preds = %14, %0
ret i32 0
}

LLVM IR (-O2):
@.str = [24 x i8] c"Introduce un entero a: \00"
@.str.1 = [3 x i8] c"%d\00"
@str = [22 x i8] c"El valor de a es par.\00"
@str.4 = [24 x i8] c"Y, ademas, es positivo.\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([24 x i8], [24 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
br i1 %7, label %8, label %14
8: ; preds = %0
%9 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([22 x i8], [22 x i8]* @str, i64 0, i64 0))
%10 = load i32, i32* %1
%11 = icmp sgt i32 %10, 0
br i1 %11, label %12, label %14
12: ; preds = %8
%13 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([24 x i8], [24 x i8]* @str.4, i64 0, i64 0))
br label %14
14: ; preds = %8, %12, %0
ret i32 0
}