#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 argc, char **argv) {
  int i, parity;
  char *answer;
  printf("input a number, e.g. 255\n");
  scanf("%d", &i);
  parity = i % 2;
  if (parity == 0)
    goto L1;
  answer = "odd";
  goto L2;
L1:;
  answer = "even";
L2:
  printf("%d is %s\n", i, answer);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
mov    %edi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
lea    0xec3(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xecf(%rip),%rdi
lea    -0x14(%rbp),%rsi
call   1040 <scanf@plt>
mov    -0x14(%rbp),%eax
mov    $0x2,%ecx
cltd
idiv   %ecx
mov    %edx,-0x18(%rbp)
cmpl   $0x0,-0x18(%rbp)
jne    1171 <main+0x51>
jmp    1181 <main+0x61>
lea    0xea5(%rip),%rax
mov    %rax,-0x20(%rbp)
jmp    118c <main+0x6c>
lea    0xe99(%rip),%rax
mov    %rax,-0x20(%rbp)
mov    -0x14(%rbp),%esi
mov    -0x20(%rbp),%rdx
lea    0xe8c(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xede(%rip),%rdi
call   1030 <puts@plt>
lea    0xebc(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1050 <scanf@plt>
mov    0x4(%rsp),%esi
test   $0x1,%sil
lea    0xeaa(%rip),%rax
lea    0xe9f(%rip),%rdx
cmove  %rax,%rdx
lea    0xe9d(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [26 x i8] c"input a number, e.g. 255\0A\00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [4 x i8] c"odd\00"
@.str.3 = [5 x i8] c"even\00"
@.str.4 = [10 x i8] c"%d is %s\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
%7 = alloca i32
%8 = alloca i8*
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([26 x i8], [26 x i8]* @.str, i64 0, i64 0))
%10 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %6)
%11 = load i32, i32* %6
%12 = srem i32 %11, 2
store i32 %12, i32* %7
%13 = load i32, i32* %7
%14 = icmp eq i32 %13, 0
br i1 %14, label %15, label %16
15: ; preds = %2
br label %17
16: ; preds = %2
store i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i8** %8
br label %18
17: ; preds = %15
store i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.3, i64 0, i64 0), i8** %8
br label %18
18: ; preds = %17, %16
%19 = load i32, i32* %6
%20 = load i8*, i8** %8
%21 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.4, i64 0, i64 0), i32 %19, i8* %20)
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [4 x i8] c"odd\00"
@.str.3 = [5 x i8] c"even\00"
@.str.4 = [10 x i8] c"%d is %s\0A\00"
@str = [25 x i8] c"input a number, e.g. 255\00"
define i32 @main(i32 %0, i8** nocapture readnone %1) {
%3 = alloca i32
%4 = bitcast i32* %3 to i8*
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 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* %3)
%7 = load i32, i32* %3
%8 = and i32 %7, 1
%9 = icmp eq i32 %8, 0
%10 = select i1 %9, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0)
%11 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([10 x i8], [10 x i8]* @.str.4, i64 0, i64 0), i32 %7, i8* %10)
ret i32 0
}