#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 *);
int main() {
  int var;
  int soma = 0;
  printf("Digite um número inteiro ou digite zero para ssir");
  scanf("%d", &var);
  while (var != 0) {
    soma += var;
    printf("Digite um número inteiro ou digite zero para ssir");
    scanf("%d", &var);
  }
  printf("a soma dos numeros eh %i", soma);
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0xc(%rbp)
lea    0xec3(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xee8(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
cmpl   $0x0,-0x8(%rbp)
je     118a <main+0x6a>
mov    -0x8(%rbp),%eax
add    -0xc(%rbp),%eax
mov    %eax,-0xc(%rbp)
lea    0xe92(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xeb7(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
jmp    1154 <main+0x34>
mov    -0xc(%rbp),%esi
lea    0xea2(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
lea    0xed1(%rip),%rdi
xor    %ebx,%ebx
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xef4(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1040 <scanf@plt>
mov    0x4(%rsp),%eax
test   %eax,%eax
je     118f <main+0x6f>
lea    0xea8(%rip),%r14
lea    0xed4(%rip),%r15
lea    0x4(%rsp),%r12
xor    %ebx,%ebx
cs nopw 0x0(%rax,%rax,1)
add    %eax,%ebx
mov    %r14,%rdi
xor    %eax,%eax
call   1030 <printf@plt>
mov    %r15,%rdi
mov    %r12,%rsi
call   1040 <scanf@plt>
mov    0x4(%rsp),%eax
test   %eax,%eax
jne    1170 <main+0x50>
lea    0xea0(%rip),%rdi
mov    %ebx,%esi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [51 x i8] c"Digite um n\C3\BAmero inteiro ou digite zero para ssir\00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [25 x i8] c"a soma dos numeros eh %i\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
store i32 0, i32* %1
store i32 0, i32* %3
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([51 x i8], [51 x i8]* @.str, i64 0, i64 0))
%5 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %2)
br label %6
6: ; preds = %9, %0
%7 = load i32, i32* %2
%8 = icmp ne i32 %7, 0
br i1 %8, label %9, label %15
9: ; preds = %6
%10 = load i32, i32* %2
%11 = load i32, i32* %3
%12 = add nsw i32 %11, %10
store i32 %12, i32* %3
%13 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([51 x i8], [51 x i8]* @.str, i64 0, i64 0))
%14 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %2)
br label %6
15: ; preds = %6
%16 = load i32, i32* %3
%17 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.2, i64 0, i64 0), i32 %16)
%18 = load i32, i32* %1
ret i32 %18
}

LLVM IR (-O2):
@.str = [51 x i8] c"Digite um n\C3\BAmero inteiro ou digite zero para ssir\00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [25 x i8] c"a soma dos numeros eh %i\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([51 x i8], [51 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 = icmp eq i32 %5, 0
br i1 %6, label %15, label %7
7: ; preds = %0, %7
%8 = phi i32 [ %13, %7 ], [ %5, %0 ]
%9 = phi i32 [ %10, %7 ], [ 0, %0 ]
%10 = add nsw i32 %8, %9
%11 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([51 x i8], [51 x i8]* @.str, i64 0, i64 0))
%12 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %1)
%13 = load i32, i32* %1
%14 = icmp eq i32 %13, 0
br i1 %14, label %15, label %7
15: ; preds = %7, %0
%16 = phi i32 [ 0, %0 ], [ %10, %7 ]
%17 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @.str.2, i64 0, i64 0), i32 %16)
ret i32 0
}