#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() {
  int x;
  int i, h;
  printf("Inserisci le dimensioni del lato del quadrato: ");
  scanf("%d", &x);
  for (i = 0; i < x; i++) {
    for (h = 0; h < x; h++) {
      printf("*");
    }
    printf("\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    0xeee(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
movl   $0x0,-0xc(%rbp)
mov    -0xc(%rbp),%eax
cmp    -0x8(%rbp),%eax
jge    11a5 <main+0x85>
movl   $0x0,-0x10(%rbp)
mov    -0x10(%rbp),%eax
cmp    -0x8(%rbp),%eax
jge    118b <main+0x6b>
lea    0xebb(%rip),%rdi
call   1030 <printf@plt>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    1165 <main+0x45>
lea    0xea3(%rip),%rdi
call   1030 <printf@plt>
mov    -0xc(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0xc(%rbp)
jmp    1152 <main+0x32>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %rbx
push   %rax
lea    0xec6(%rip),%rdi
call   1040 <printf@plt>
lea    0xeea(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1050 <scanf@plt>
mov    0x4(%rsp),%eax
test   %eax,%eax
jle    1195 <main+0x65>
xor    %ebx,%ebx
jmp    1175 <main+0x45>
nopl   0x0(%rax)
mov    $0xa,%edi
call   1030 <putchar@plt>
add    $0x1,%ebx
mov    0x4(%rsp),%eax
cmp    %eax,%ebx
jge    1195 <main+0x65>
test   %eax,%eax
jle    1160 <main+0x30>
xor    %ebp,%ebp
nopl   0x0(%rax,%rax,1)
mov    $0x2a,%edi
call   1030 <putchar@plt>
add    $0x1,%ebp
cmp    0x4(%rsp),%ebp
jl     1180 <main+0x50>
jmp    1160 <main+0x30>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %rbp
ret

LLVM IR (-O0):
@.str = [48 x i8] c"Inserisci le dimensioni del lato del quadrato: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [2 x i8] c"*\00"
@.str.3 = [2 x i8] c"\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
store i32 0, i32* %1
%5 = call i32 @printf(i8* getelementptr inbounds ([48 x i8], [48 x i8]* @.str, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %2)
store i32 0, i32* %3
br label %7
7: ; preds = %23, %0
%8 = load i32, i32* %3
%9 = load i32, i32* %2
%10 = icmp slt i32 %8, %9
br i1 %10, label %11, label %26
11: ; preds = %7
store i32 0, i32* %4
br label %12
12: ; preds = %18, %11
%13 = load i32, i32* %4
%14 = load i32, i32* %2
%15 = icmp slt i32 %13, %14
br i1 %15, label %16, label %21
16: ; preds = %12
%17 = call i32 @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0))
br label %18
18: ; preds = %16
%19 = load i32, i32* %4
%20 = add nsw i32 %19, 1
store i32 %20, i32* %4
br label %12
21: ; preds = %12
%22 = call i32 @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.3, i64 0, i64 0))
br label %23
23: ; preds = %21
%24 = load i32, i32* %3
%25 = add nsw i32 %24, 1
store i32 %25, i32* %3
br label %7
26: ; preds = %7
ret i32 0
}

LLVM IR (-O2):
@.str = [48 x i8] c"Inserisci le dimensioni del lato del quadrato: \00"
@.str.1 = [3 x i8] c"%d\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([48 x i8], [48 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 = icmp sgt i32 %5, 0
br i1 %6, label %7, label %22
7: ; preds = %0, %17
%8 = phi i32 [ %20, %17 ], [ %5, %0 ]
%9 = phi i32 [ %19, %17 ], [ 0, %0 ]
%10 = icmp sgt i32 %8, 0
br i1 %10, label %11, label %17
11: ; preds = %7, %11
%12 = phi i32 [ %14, %11 ], [ 0, %7 ]
%13 = call i32 @putchar(i32 42)
%14 = add nuw nsw i32 %12, 1
%15 = load i32, i32* %1
%16 = icmp slt i32 %14, %15
br i1 %16, label %11, label %17
17: ; preds = %11, %7
%18 = call i32 @putchar(i32 10)
%19 = add nuw nsw i32 %9, 1
%20 = load i32, i32* %1
%21 = icmp slt i32 %19, %20
br i1 %21, label %7, label %22
22: ; preds = %17, %0
ret i32 0
}