#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*/ LC_ALL;
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, int *);
int /*<<< orphan*/ setlocale(int /*<<< orphan*/, char *);
int main() {
  setlocale(LC_ALL, "");
  int num1 = 0;
  int num2 = 0;
  printf("Num 1: ");
  scanf("%d", &num1);
  printf("Num 2: ");
  scanf("%d", &num2);
  printf("A diferença de num1 e num2: %d\n", num1 - num2);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
mov    0x2e9a(%rip),%rax
mov    (%rax),%edi
lea    0xee4(%rip),%rsi
call   1040 <setlocale@plt>
movl   $0x0,-0x8(%rbp)
movl   $0x0,-0xc(%rbp)
lea    0xe97(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xe91(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1050 <scanf@plt>
lea    0xe84(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xe73(%rip),%rdi
lea    -0xc(%rbp),%rsi
call   1050 <scanf@plt>
mov    -0x8(%rbp),%esi
sub    -0xc(%rbp),%esi
lea    0xe68(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
mov    0x2ea4(%rip),%rax
mov    (%rax),%edi
lea    0xeee(%rip),%rsi
call   1040 <setlocale@plt>
movl   $0x0,0xc(%rsp)
movl   $0x0,0x8(%rsp)
lea    0xe9f(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xe99(%rip),%rbx
lea    0xc(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
lea    0xe88(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0x8(%rsp),%rsi
mov    %rbx,%rdi
call   1050 <scanf@plt>
mov    0xc(%rsp),%esi
sub    0x8(%rsp),%esi
lea    0xe6d(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@LC_ALL = global i32 0
@.str = [1 x i8] zeroinitializer
@.str.1 = [8 x i8] c"Num 1: \00"
@.str.2 = [3 x i8] c"%d\00"
@.str.3 = [8 x i8] c"Num 2: \00"
@.str.4 = [33 x i8] c"A diferen\C3\A7a de num1 e num2: %d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
store i32 0, i32* %1
%4 = load i32, i32* @LC_ALL
%5 = call i32 @setlocale(i32 %4, i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i64 0, i64 0))
store i32 0, i32* %2
store i32 0, i32* %3
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.1, i64 0, i64 0))
%7 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %2)
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.3, i64 0, i64 0))
%9 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %3)
%10 = load i32, i32* %2
%11 = load i32, i32* %3
%12 = sub nsw i32 %10, %11
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([33 x i8], [33 x i8]* @.str.4, i64 0, i64 0), i32 %12)
ret i32 0
}

LLVM IR (-O2):
@LC_ALL = global i32 0
@.str = [1 x i8] zeroinitializer
@.str.1 = [8 x i8] c"Num 1: \00"
@.str.2 = [3 x i8] c"%d\00"
@.str.3 = [8 x i8] c"Num 2: \00"
@.str.4 = [33 x i8] c"A diferen\C3\A7a de num1 e num2: %d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = load i32, i32* @LC_ALL
%4 = tail call i32 @setlocale(i32 %3, i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i64 0, i64 0))
%5 = bitcast i32* %1 to i8*
store i32 0, i32* %1
%6 = bitcast i32* %2 to i8*
store i32 0, i32* %2
%7 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([8 x i8], [8 x i8]* @.str.1, i64 0, i64 0))
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %1)
%9 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([8 x i8], [8 x i8]* @.str.3, i64 0, i64 0))
%10 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %2)
%11 = load i32, i32* %1
%12 = load i32, i32* %2
%13 = sub nsw i32 %11, %12
%14 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([33 x i8], [33 x i8]* @.str.4, i64 0, i64 0), i32 %13)
ret i32 0
}