#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__ isLeapYear(int);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, int *);
int main() {
  printf("Is Leap Year? \n");
  int year;
  printf("year = ");
  scanf("%d", &year);
  printf(isLeapYear(year) ? "isLeapYear(%d) -> true"
                          : "isLeapYear(%d) -> false",
         year);
  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    0xebc(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xeb6(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
mov    -0x8(%rbp),%edi
call   1050 <isLeapYear@plt>
mov    %rax,%rcx
lea    0xeb5(%rip),%rdi
lea    0xe97(%rip),%rax
cmp    $0x0,%rcx
cmovne %rax,%rdi
mov    -0x8(%rbp),%esi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xef2(%rip),%rdi
call   1030 <puts@plt>
lea    0xeac(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xea6(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1050 <scanf@plt>
mov    0x4(%rsp),%edi
call   1060 <isLeapYear@plt>
test   %rax,%rax
lea    0xea3(%rip),%rax
lea    0xe85(%rip),%rdi
cmove  %rax,%rdi
mov    0x4(%rsp),%esi
xor    %eax,%eax
call   1040 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [16 x i8] c"Is Leap Year? \0A\00"
@.str.1 = [8 x i8] c"year = \00"
@.str.2 = [3 x i8] c"%d\00"
@.str.3 = [23 x i8] c"isLeapYear(%d) -> true\00"
@.str.4 = [24 x i8] c"isLeapYear(%d) -> false\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
store i32 0, i32* %1
%3 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str, i64 0, i64 0))
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.1, i64 0, i64 0))
%5 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %2)
%6 = load i32, i32* %2
%7 = call i64 @isLeapYear(i32 %6)
%8 = icmp ne i64 %7, 0
%9 = zext i1 %8 to i64
%10 = select i1 %8, i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.3, i64 0, i64 0), i8* getelementptr inbounds ([24 x i8], [24 x i8]* @.str.4, i64 0, i64 0)
%11 = load i32, i32* %2
%12 = call i32 (i8*, ...) @printf(i8* %10, i32 %11)
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [8 x i8] c"year = \00"
@.str.2 = [3 x i8] c"%d\00"
@.str.3 = [23 x i8] c"isLeapYear(%d) -> true\00"
@.str.4 = [24 x i8] c"isLeapYear(%d) -> false\00"
@str = [15 x i8] c"Is Leap Year? \00"
define i32 @main() {
%1 = alloca i32
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([15 x i8], [15 x i8]* @str, i64 0, i64 0))
%3 = bitcast i32* %1 to i8*
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([8 x i8], [8 x i8]* @.str.1, i64 0, i64 0))
%5 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %1)
%6 = load i32, i32* %1
%7 = call i64 @isLeapYear(i32 %6)
%8 = icmp eq i64 %7, 0
%9 = select i1 %8, i8* getelementptr inbounds ([24 x i8], [24 x i8]* @.str.4, i64 0, i64 0), i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.3, i64 0, i64 0)
%10 = load i32, i32* %1
%11 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) %9, i32 %10)
ret i32 0
}