#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 is_pos(int);
int /*<<< orphan*/ printf(char *);
int /*<<< orphan*/ scanf(char *, int *);
int main(int argc, const char *argv[]) {
  int a, num;
  printf("digite um numero: \n");
  scanf("%d", &num);
  a = is_pos(num);
  if (a == 1) {
    printf("positivo!\n");
  } else {
    printf("negativo!\n");
  }
  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    0xeb3(%rip),%rdi
call   1040 <printf@plt>
lea    0xebb(%rip),%rdi
lea    -0x18(%rbp),%rsi
call   1050 <scanf@plt>
mov    -0x18(%rbp),%edi
call   1030 <is_pos@plt>
mov    %eax,-0x14(%rbp)
cmpl   $0x1,-0x14(%rbp)
jne    1188 <main+0x58>
lea    0xe99(%rip),%rdi
call   1040 <printf@plt>
jmp    1194 <main+0x64>
lea    0xe93(%rip),%rdi
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xecb(%rip),%rdi
call   1030 <puts@plt>
lea    0xebc(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1050 <scanf@plt>
mov    0x4(%rsp),%edi
call   1040 <is_pos@plt>
cmp    $0x1,%eax
lea    0xebf(%rip),%rax
lea    0xeae(%rip),%rdi
cmove  %rax,%rdi
call   1030 <puts@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [20 x i8] c"digite um numero: \0A\00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [11 x i8] c"positivo!\0A\00"
@.str.3 = [11 x i8] c"negativo!\0A\00"
define i32 @main(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i8**
%6 = alloca i32
%7 = alloca i32
store i32 0, i32* %3
store i32 %0, i32* %4
store i8** %1, i8*** %5
%8 = call i32 @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str, i64 0, i64 0))
%9 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %7)
%10 = load i32, i32* %7
%11 = call i32 @is_pos(i32 %10)
store i32 %11, i32* %6
%12 = load i32, i32* %6
%13 = icmp eq i32 %12, 1
br i1 %13, label %14, label %16
14: ; preds = %2
%15 = call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.2, i64 0, i64 0))
br label %18
16: ; preds = %2
%17 = call i32 @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.3, i64 0, i64 0))
br label %18
18: ; preds = %16, %14
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [3 x i8] c"%d\00"
@str = [19 x i8] c"digite um numero: \00"
@str.4 = [10 x i8] c"negativo!\00"
@str.5 = [10 x i8] c"positivo!\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 ([19 x i8], [19 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 = call i32 @is_pos(i32 %7)
%9 = icmp eq i32 %8, 1
%10 = select i1 %9, i8* getelementptr inbounds ([10 x i8], [10 x i8]* @str.5, i64 0, i64 0), i8* getelementptr inbounds ([10 x i8], [10 x i8]* @str.4, i64 0, i64 0)
%11 = call i32 @puts(i8* dereferenceable(1) %10)
ret i32 0
}