#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 input;
  printf("Type a number! ");
  scanf("%d", &input);
  if ((input / 2) * 2 == input)
    printf("Your number is even!\n");
  else
    printf("Your number is odd!\n");
}


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    0xece(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
mov    -0x8(%rbp),%eax
mov    $0x2,%ecx
cltd
idiv   %ecx
shl    $0x1,%eax
cmp    -0x8(%rbp),%eax
jne    1173 <main+0x53>
lea    0xeaa(%rip),%rdi
call   1030 <printf@plt>
jmp    117f <main+0x5f>
lea    0xeaf(%rip),%rdi
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
call   1040 <printf@plt>
lea    0xecc(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1050 <scanf@plt>
mov    0x4(%rsp),%eax
mov    %eax,%ecx
shr    $0x1f,%ecx
add    %eax,%ecx
and    $0xfffffffe,%ecx
cmp    %eax,%ecx
lea    0xec2(%rip),%rax
lea    0xea7(%rip),%rdi
cmove  %rax,%rdi
call   1030 <puts@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [16 x i8] c"Type a number! \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [22 x i8] c"Your number is even!\0A\00"
@.str.3 = [21 x i8] c"Your number is odd!\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %1
%3 = call i32 @printf(i8* getelementptr inbounds ([16 x i8], [16 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* %2)
%5 = load i32, i32* %2
%6 = sdiv i32 %5, 2
%7 = mul nsw i32 %6, 2
%8 = load i32, i32* %2
%9 = icmp eq i32 %7, %8
br i1 %9, label %10, label %12
10: ; preds = %0
%11 = call i32 @printf(i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str.2, i64 0, i64 0))
br label %14
12: ; preds = %0
%13 = call i32 @printf(i8* getelementptr inbounds ([21 x i8], [21 x i8]* @.str.3, i64 0, i64 0))
br label %14
14: ; preds = %12, %10
%15 = load i32, i32* %1
ret i32 %15
}

LLVM IR (-O2):
@.str = [16 x i8] c"Type a number! \00"
@.str.1 = [3 x i8] c"%d\00"
@str = [20 x i8] c"Your number is odd!\00"
@str.4 = [21 x i8] c"Your number is even!\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 @printf(i8* dereferenceable(1) getelementptr inbounds ([16 x i8], [16 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 = sdiv i32 %5, 2
%7 = shl nsw i32 %6, 1
%8 = icmp eq i32 %7, %5
%9 = select i1 %8, i8* getelementptr inbounds ([21 x i8], [21 x i8]* @str.4, i64 0, i64 0), i8* getelementptr inbounds ([20 x i8], [20 x i8]* @str, i64 0, i64 0)
%10 = call i32 @puts(i8* dereferenceable(1) %9)
ret i32 0
}