#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 *);
void main() {
  int ano;
  printf("Informe o ano: ");
  scanf("%d", &ano);
  if ((ano % 400) == 0) {
    printf("Ano Bissextos.\n");
  } else if (ano % 4 == 0 && ano % 100 != 0) {
    printf("Ano Bissexto.\n");
  } else {
    printf("Ano nao bissexto.\n");
  }
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
lea    0xed1(%rip),%rdi
call   1030 <printf@plt>
lea    0xed5(%rip),%rdi
lea    -0x4(%rbp),%rsi
call   1040 <scanf@plt>
mov    -0x4(%rbp),%eax
mov    $0x190,%ecx
cltd
idiv   %ecx
cmp    $0x0,%edx
jne    1169 <main+0x49>
lea    0xeb4(%rip),%rdi
call   1030 <printf@plt>
jmp    11b3 <main+0x93>
mov    -0x4(%rbp),%eax
mov    $0x4,%ecx
cltd
idiv   %ecx
cmp    $0x0,%edx
jne    11a2 <main+0x82>
mov    -0x4(%rbp),%eax
mov    $0x64,%ecx
cltd
idiv   %ecx
cmp    $0x0,%edx
je     11a2 <main+0x82>
lea    0xe8b(%rip),%rdi
call   1030 <printf@plt>
jmp    11ae <main+0x8e>
lea    0xe89(%rip),%rdi
call   1030 <printf@plt>
jmp    11b3 <main+0x93>
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
imul   $0xc28f5c29,%eax,%ecx
add    $0x51eb850,%ecx
mov    %ecx,%edx
ror    $0x4,%edx
cmp    $0xa3d70b,%edx
jb     118e <main+0x5e>
ror    $0x2,%ecx
cmp    $0x28f5c29,%ecx
lea    0xe98(%rip),%rcx
lea    0xea3(%rip),%rdi
cmovb  %rcx,%rdi
test   $0x3,%al
cmovne %rcx,%rdi
jmp    1195 <main+0x65>
lea    0xe9e(%rip),%rdi
call   1030 <puts@plt>
pop    %rax
ret

LLVM IR (-O0):
@.str = [16 x i8] c"Informe o ano: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [16 x i8] c"Ano Bissextos.\0A\00"
@.str.3 = [15 x i8] c"Ano Bissexto.\0A\00"
@.str.4 = [19 x i8] c"Ano nao bissexto.\0A\00"
define void @main() {
%1 = alloca i32
%2 = call i32 @printf(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str, i64 0, i64 0))
%3 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %1)
%4 = load i32, i32* %1
%5 = srem i32 %4, 400
%6 = icmp eq i32 %5, 0
br i1 %6, label %7, label %9
7: ; preds = %0
%8 = call i32 @printf(i8* getelementptr inbounds ([16 x i8], [16 x i8]* @.str.2, i64 0, i64 0))
br label %22
9: ; preds = %0
%10 = load i32, i32* %1
%11 = srem i32 %10, 4
%12 = icmp eq i32 %11, 0
br i1 %12, label %13, label %19
13: ; preds = %9
%14 = load i32, i32* %1
%15 = srem i32 %14, 100
%16 = icmp ne i32 %15, 0
br i1 %16, label %17, label %19
17: ; preds = %13
%18 = call i32 @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str.3, i64 0, i64 0))
br label %21
19: ; preds = %13, %9
%20 = call i32 @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.4, i64 0, i64 0))
br label %21
21: ; preds = %19, %17
br label %22
22: ; preds = %21, %7
ret void
}

LLVM IR (-O2):
@.str = [16 x i8] c"Informe o ano: \00"
@.str.1 = [3 x i8] c"%d\00"
@str = [18 x i8] c"Ano nao bissexto.\00"
@str.5 = [14 x i8] c"Ano Bissexto.\00"
@str.6 = [15 x i8] c"Ano Bissextos.\00"
define void @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 = srem i32 %5, 400
%7 = icmp eq i32 %6, 0
br i1 %7, label %15, label %8
8: ; preds = %0
%9 = and i32 %5, 3
%10 = icmp ne i32 %9, 0
%11 = srem i32 %5, 100
%12 = icmp eq i32 %11, 0
%13 = or i1 %10, %12
%14 = select i1 %13, i8* getelementptr inbounds ([18 x i8], [18 x i8]* @str, i64 0, i64 0), i8* getelementptr inbounds ([14 x i8], [14 x i8]* @str.5, i64 0, i64 0)
br label %15
15: ; preds = %8, %0
%16 = phi i8* [ getelementptr inbounds ([15 x i8], [15 x i8]* @str.6, i64 0, i64 0), %0 ], [ %14, %8 ]
%17 = call i32 @puts(i8* dereferenceable(1) %16)
ret void
}