#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 n, a, b, p;
  n = 0;
  a = 1;
  b = 0;
  printf("Podaj liczbe: ");
  scanf("%i", &p);
  while (n < p) {
    b = b + a;
    a = a + 2;
    n = n + 1;
  }
  printf("\n %i^2 == %i\n\n", p, b);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0x8(%rbp)
movl   $0x1,-0xc(%rbp)
movl   $0x0,-0x10(%rbp)
lea    0xeb5(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xeb6(%rip),%rdi
lea    -0x14(%rbp),%rsi
call   1040 <scanf@plt>
mov    -0x8(%rbp),%eax
cmp    -0x14(%rbp),%eax
jge    118e <main+0x6e>
mov    -0x10(%rbp),%eax
add    -0xc(%rbp),%eax
mov    %eax,-0x10(%rbp)
mov    -0xc(%rbp),%eax
add    $0x2,%eax
mov    %eax,-0xc(%rbp)
mov    -0x8(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x8(%rbp)
jmp    1162 <main+0x42>
mov    -0x14(%rbp),%esi
mov    -0x10(%rbp),%edx
lea    0xe77(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
lea    0xed4(%rip),%rdi
xor    %ebx,%ebx
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xed3(%rip),%rdi
lea    0xc(%rsp),%rsi
call   1040 <scanf@plt>
mov    0xc(%rsp),%esi
test   %esi,%esi
jle    1163 <main+0x43>
lea    (%rsi,%rsi,2),%eax
lea    -0x1(%rsi),%ecx
lea    -0x2(%rsi),%edx
imul   %ecx,%edx
and    $0xfffffffe,%edx
lea    (%rdx,%rax,1),%ebx
add    $0xfffffffe,%ebx
lea    0xea8(%rip),%rdi
mov    %ebx,%edx
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

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

LLVM IR (-O2):
@.str = [15 x i8] c"Podaj liczbe: \00"
@.str.1 = [3 x i8] c"%i\00"
@.str.2 = [15 x i8] c"\0A %i^2 == %i\0A\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([15 x i8], [15 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 %15
7: ; preds = %0
%8 = mul i32 %5, 3
%9 = add nsw i32 %5, -1
%10 = add nsw i32 %5, -2
%11 = mul i32 %9, %10
%12 = and i32 %11, -2
%13 = add i32 %8, %12
%14 = add i32 %13, -2
br label %15
15: ; preds = %7, %0
%16 = phi i32 [ 0, %0 ], [ %14, %7 ]
%17 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([15 x i8], [15 x i8]* @.str.2, i64 0, i64 0), i32 %5, i32 %16)
ret i32 0
}