#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 *, char *);
int /*<<< orphan*/ puts(char *);
int /*<<< orphan*/ scanf(char *, int *);
int main(void) {
  int even(int side);
  int side;
  printf(
      "%s",
      "Inserire la dimensione del lato del quadrato di * da voler stampare: ");
  scanf("%d", &side);
  if (side > 0) {
    even(side);
  } else {
    puts("Non e' stato inserito un valore valido ripetere l'inserimento.");
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeaa(%rip),%rdi
lea    0xea6(%rip),%rsi
call   1040 <printf@plt>
lea    0xee0(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1060 <scanf@plt>
cmpl   $0x0,-0x8(%rbp)
jle    1189 <main+0x49>
mov    -0x8(%rbp),%edi
call   1050 <even@plt>
jmp    1195 <main+0x55>
lea    0xebc(%rip),%rdi
call   1030 <puts@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xeb8(%rip),%rdi
lea    0xeb4(%rip),%rsi
call   1040 <printf@plt>
lea    0xeee(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1060 <scanf@plt>
mov    0x4(%rsp),%edi
test   %edi,%edi
jle    1174 <main+0x34>
call   1050 <even@plt>
jmp    1180 <main+0x40>
lea    0xed1(%rip),%rdi
call   1030 <puts@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [3 x i8] c"%s\00"
@.str.1 = [70 x i8] c"Inserire la dimensione del lato del quadrato di * da voler stampare: \00"
@.str.2 = [3 x i8] c"%d\00"
@.str.3 = [63 x i8] c"Non e' stato inserito un valore valido ripetere l'inserimento.\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %1
%3 = call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([70 x i8], [70 x i8]* @.str.1, i64 0, i64 0))
%4 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %2)
%5 = load i32, i32* %2
%6 = icmp sgt i32 %5, 0
br i1 %6, label %7, label %10
7: ; preds = %0
%8 = load i32, i32* %2
%9 = call i32 @even(i32 %8)
br label %12
10: ; preds = %0
%11 = call i32 @puts(i8* getelementptr inbounds ([63 x i8], [63 x i8]* @.str.3, i64 0, i64 0))
br label %12
12: ; preds = %10, %7
ret i32 0
}

LLVM IR (-O2):
@.str = [3 x i8] c"%s\00"
@.str.1 = [70 x i8] c"Inserire la dimensione del lato del quadrato di * da voler stampare: \00"
@.str.2 = [3 x i8] c"%d\00"
@.str.3 = [63 x i8] c"Non e' stato inserito un valore valido ripetere l'inserimento.\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8* getelementptr inbounds ([70 x i8], [70 x i8]* @.str.1, i64 0, i64 0))
%4 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %1)
%5 = load i32, i32* %1
%6 = icmp sgt i32 %5, 0
br i1 %6, label %7, label %9
7: ; preds = %0
%8 = call i32 @even(i32 %5)
br label %11
9: ; preds = %0
%10 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([63 x i8], [63 x i8]* @.str.3, i64 0, i64 0))
br label %11
11: ; preds = %9, %7
ret i32 0
}