#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*/ flushall();
int /*<<< orphan*/ getchar();
int odd_even(int);
int /*<<< orphan*/ printf(char *);
int /*<<< orphan*/ scanf(char *, int *);
main() {
  int x;
  int result;
  printf("Input a number to see if its odd or even:\n");
  scanf("%d", &x);
  result = odd_even(x);
  if (result == 1)
    printf("Even");
  else
    printf("Odd");
  flushall();
  getchar();
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xe9a(%rip),%rdi
call   1030 <printf@plt>
lea    0xeb9(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1070 <scanf@plt>
mov    -0x8(%rbp),%edi
call   1060 <odd_even@plt>
mov    %eax,-0xc(%rbp)
cmpl   $0x1,-0xc(%rbp)
jne    11a1 <main+0x51>
lea    0xe97(%rip),%rdi
call   1030 <printf@plt>
jmp    11ad <main+0x5d>
lea    0xe8b(%rip),%rdi
call   1030 <printf@plt>
mov    $0x0,%al
call   1040 <flushall@plt>
mov    $0x0,%al
call   1050 <getchar@plt>
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xea4(%rip),%rdi
call   1030 <puts@plt>
lea    0xe8c(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1080 <scanf@plt>
mov    0x4(%rsp),%edi
call   1070 <odd_even@plt>
cmp    $0x1,%eax
lea    0xe72(%rip),%rax
lea    0xe70(%rip),%rdi
cmove  %rax,%rdi
call   1040 <printf@plt>
xor    %eax,%eax
call   1050 <flushall@plt>
xor    %eax,%eax
call   1060 <getchar@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [43 x i8] c"Input a number to see if its odd or even:\0A\00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [5 x i8] c"Even\00"
@.str.3 = [4 x i8] c"Odd\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
store i32 0, i32* %1
%4 = call i32 @printf(i8* getelementptr inbounds ([43 x i8], [43 x i8]* @.str, i64 0, i64 0))
%5 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %2)
%6 = load i32, i32* %2
%7 = call i32 @odd_even(i32 %6)
store i32 %7, i32* %3
%8 = load i32, i32* %3
%9 = icmp eq i32 %8, 1
br i1 %9, label %10, label %12
10: ; preds = %0
%11 = call i32 @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.2, i64 0, i64 0))
br label %14
12: ; preds = %0
%13 = call i32 @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0))
br label %14
14: ; preds = %12, %10
%15 = call i32 (...) @flushall()
%16 = call i32 (...) @getchar()
%17 = load i32, i32* %1
ret i32 %17
}

LLVM IR (-O2):
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [5 x i8] c"Even\00"
@.str.3 = [4 x i8] c"Odd\00"
@str = [42 x i8] c"Input a number to see if its odd or even:\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([42 x i8], [42 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 @odd_even(i32 %5)
%7 = icmp eq i32 %6, 1
%8 = select i1 %7, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.2, i64 0, i64 0), i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0)
%9 = call i32 @printf(i8* dereferenceable(1) %8)
%10 = call i32 (...) @flushall()
%11 = call i32 (...) @getchar()
ret i32 0
}