#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 EXIT_SUCCESS;
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, int *);
int sumFormula(int);
int sumIter(int);
int main(void) {
  int n, formula, iter;
  printf("Please input a non-negative number: ");
  scanf("%d", &n);
  formula = sumFormula(n);
  iter = sumIter(n);
  printf("%d and %d\n", formula, iter);
  return EXIT_SUCCESS;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeaa(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xec1(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1050 <scanf@plt>
mov    -0x8(%rbp),%edi
call   1030 <sumFormula@plt>
mov    %eax,-0xc(%rbp)
mov    -0x8(%rbp),%edi
call   1060 <sumIter@plt>
mov    %eax,-0x10(%rbp)
mov    -0xc(%rbp),%esi
mov    -0x10(%rbp),%edx
lea    0xe98(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    0x2e42(%rip),%rax
mov    (%rax),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
lea    0xeb4(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xecb(%rip),%rdi
lea    0xc(%rsp),%rsi
call   1050 <scanf@plt>
mov    0xc(%rsp),%edi
call   1030 <sumFormula@plt>
mov    %eax,%ebx
mov    0xc(%rsp),%edi
call   1060 <sumIter@plt>
lea    0xea9(%rip),%rdi
mov    %ebx,%esi
mov    %eax,%edx
xor    %eax,%eax
call   1040 <printf@plt>
mov    0x2e4f(%rip),%rax
mov    (%rax),%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [37 x i8] c"Please input a non-negative number: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [11 x i8] c"%d and %d\0A\00"
@EXIT_SUCCESS = global i32 0
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
store i32 0, i32* %1
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([37 x i8], [37 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 = call i32 @sumFormula(i32 %7)
store i32 %8, i32* %3
%9 = load i32, i32* %2
%10 = call i32 @sumIter(i32 %9)
store i32 %10, i32* %4
%11 = load i32, i32* %3
%12 = load i32, i32* %4
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i32 %11, i32 %12)
%14 = load i32, i32* @EXIT_SUCCESS
ret i32 %14
}

LLVM IR (-O2):
@.str = [37 x i8] c"Please input a non-negative number: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [11 x i8] c"%d and %d\0A\00"
@EXIT_SUCCESS = global i32 0
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([37 x i8], [37 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 = call i32 @sumFormula(i32 %5)
%7 = load i32, i32* %1
%8 = call i32 @sumIter(i32 %7)
%9 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0), i32 %6, i32 %8)
%10 = load i32, i32* @EXIT_SUCCESS
ret i32 %10
}