#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*/ exit(int);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, int *);
int main() {
  int n, suma = 0;
  int i = 1;
  printf("Podaj liczbe calkowita wieksza od 0: ");
  scanf("%d", &n);
  if (n <= 0) {
    printf("Liczba musi byc wieksza od 0");
    exit(1);
  }
  i = 1;
  while (i <= n) {
    suma += i;
    i++;
  }
  printf("Suma: %d\n", suma);
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0xc(%rbp)
movl   $0x1,-0x10(%rbp)
lea    0xeac(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xec4(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
cmpl   $0x0,-0x8(%rbp)
jg     118d <main+0x5d>
lea    0xead(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    $0x1,%edi
call   1050 <exit@plt>
movl   $0x1,-0x10(%rbp)
mov    -0x10(%rbp),%eax
cmp    -0x8(%rbp),%eax
jg     11b7 <main+0x87>
mov    -0x10(%rbp),%eax
add    -0xc(%rbp),%eax
mov    %eax,-0xc(%rbp)
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    1194 <main+0x64>
mov    -0xc(%rbp),%esi
lea    0xe85(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xec8(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xee0(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1040 <scanf@plt>
mov    0x4(%rsp),%eax
test   %eax,%eax
jle    117d <main+0x4d>
lea    -0x1(%rax),%ecx
lea    -0x2(%rax),%edx
imul   %rcx,%rdx
shr    %rdx
lea    (%rdx,%rax,2),%esi
add    $0xffffffff,%esi
lea    0xed4(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret
lea    0xea5(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
mov    $0x1,%edi
call   1050 <exit@plt>

LLVM IR (-O0):
@.str = [38 x i8] c"Podaj liczbe calkowita wieksza od 0: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [29 x i8] c"Liczba musi byc wieksza od 0\00"
@.str.3 = [10 x i8] c"Suma: %d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
store i32 0, i32* %1
store i32 0, i32* %3
store i32 1, i32* %4
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([38 x i8], [38 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)
%7 = load i32, i32* %2
%8 = icmp sle i32 %7, 0
br i1 %8, label %9, label %12
9: ; preds = %0
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str.2, i64 0, i64 0))
%11 = call i32 @exit(i32 1)
unreachable
12: ; preds = %0
store i32 1, i32* %4
br label %13
13: ; preds = %17, %12
%14 = load i32, i32* %4
%15 = load i32, i32* %2
%16 = icmp sle i32 %14, %15
br i1 %16, label %17, label %23
17: ; preds = %13
%18 = load i32, i32* %4
%19 = load i32, i32* %3
%20 = add nsw i32 %19, %18
store i32 %20, i32* %3
%21 = load i32, i32* %4
%22 = add nsw i32 %21, 1
store i32 %22, i32* %4
br label %13
23: ; preds = %13
%24 = load i32, i32* %3
%25 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.3, i64 0, i64 0), i32 %24)
%26 = load i32, i32* %1
ret i32 %26
}

LLVM IR (-O2):
@.str = [38 x i8] c"Podaj liczbe calkowita wieksza od 0: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [29 x i8] c"Liczba musi byc wieksza od 0\00"
@.str.3 = [10 x i8] c"Suma: %d\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 ([38 x i8], [38 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 slt i32 %5, 1
br i1 %6, label %19, label %7
7: ; preds = %0
%8 = shl nuw i32 %5, 1
%9 = add nsw i32 %5, -1
%10 = zext i32 %9 to i33
%11 = add nsw i32 %5, -2
%12 = zext i32 %11 to i33
%13 = mul i33 %10, %12
%14 = lshr i33 %13, 1
%15 = trunc i33 %14 to i32
%16 = add i32 %8, %15
%17 = add i32 %16, -1
%18 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([10 x i8], [10 x i8]* @.str.3, i64 0, i64 0), i32 %17)
ret i32 0
19: ; preds = %0
%20 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @.str.2, i64 0, i64 0))
%21 = call i32 @exit(i32 1)
unreachable
}