#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 */
scalar_t__ leapYear(int);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, int *);
int main() {
  int year;
  printf("Enter a year: ");
  scanf("%d", &year);
  if (leapYear(year)) {
    printf("%d", year);
    printf(" is a leap year.\n");
  } else {
    printf("%d", year);
    printf(" is not a leap year.\n");
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeba(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xebb(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1050 <scanf@plt>
mov    -0x8(%rbp),%edi
call   1040 <leapYear@plt>
cmp    $0x0,%rax
je     1193 <main+0x63>
mov    -0x8(%rbp),%esi
lea    0xe96(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xe8b(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    11b2 <main+0x82>
mov    -0x8(%rbp),%esi
lea    0xe72(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xe79(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r14
push   %rbx
push   %rax
lea    0xeb5(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xeb6(%rip),%r14
lea    0x4(%rsp),%rsi
mov    %r14,%rdi
call   1060 <scanf@plt>
mov    0x4(%rsp),%edi
call   1050 <leapYear@plt>
mov    %rax,%rbx
mov    0x4(%rsp),%esi
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
test   %rbx,%rbx
lea    0xe88(%rip),%rax
lea    0xe96(%rip),%rdi
cmove  %rax,%rdi
call   1030 <puts@plt>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
ret

LLVM IR (-O0):
@.str = [15 x i8] c"Enter a year: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [18 x i8] c" is a leap year.\0A\00"
@.str.3 = [22 x i8] c" is not a leap year.\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %1
%3 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([15 x i8], [15 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 = call i64 @leapYear(i32 %5)
%7 = icmp ne i64 %6, 0
br i1 %7, label %8, label %12
8: ; preds = %0
%9 = load i32, i32* %2
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 %9)
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.2, i64 0, i64 0))
br label %16
12: ; preds = %0
%13 = load i32, i32* %2
%14 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 %13)
%15 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([22 x i8], [22 x i8]* @.str.3, i64 0, i64 0))
br label %16
16: ; preds = %12, %8
ret i32 0
}

LLVM IR (-O2):
@.str = [15 x i8] c"Enter a year: \00"
@.str.1 = [3 x i8] c"%d\00"
@str = [21 x i8] c" is not a leap year.\00"
@str.4 = [17 x i8] c" is a leap year.\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([15 x i8], [15 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 i64 @leapYear(i32 %5)
%7 = icmp eq i64 %6, 0
%8 = load i32, i32* %1
%9 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 %8)
%10 = select i1 %7, i8* getelementptr inbounds ([21 x i8], [21 x i8]* @str, i64 0, i64 0), i8* getelementptr inbounds ([17 x i8], [17 x i8]* @str.4, i64 0, i64 0)
%11 = call i32 @puts(i8* dereferenceable(1) %10)
ret i32 0
}