#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 num, digit;
  printf("\nEnter an integer > ");
  scanf("%d", &num);
  digit = num % 10;
  while (num != 0) {
    if ((digit < 0) && ((num / 10) != 0))
      digit = digit * -1;
    printf("%d\n", digit);
    num = num / 10;
    digit = num % 10;
  }
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeca(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xed1(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
mov    -0x8(%rbp),%eax
mov    $0xa,%ecx
cltd
idiv   %ecx
mov    %edx,-0xc(%rbp)
cmpl   $0x0,-0x8(%rbp)
je     11bc <main+0x9c>
cmpl   $0x0,-0xc(%rbp)
jge    118a <main+0x6a>
mov    -0x8(%rbp),%eax
mov    $0xa,%ecx
cltd
idiv   %ecx
cmp    $0x0,%eax
je     118a <main+0x6a>
imul   $0xffffffff,-0xc(%rbp),%eax
mov    %eax,-0xc(%rbp)
mov    -0xc(%rbp),%esi
lea    0xe84(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%eax
mov    $0xa,%ecx
cltd
idiv   %ecx
mov    %eax,-0x8(%rbp)
mov    -0x8(%rbp),%eax
mov    $0xa,%ecx
cltd
idiv   %ecx
mov    %edx,-0xc(%rbp)
jmp    115b <main+0x3b>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
lea    0xed4(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xedb(%rip),%rdi
lea    0xc(%rsp),%rsi
call   1040 <scanf@plt>
mov    0xc(%rsp),%eax
test   %eax,%eax
je     11c0 <main+0xa0>
lea    0xec5(%rip),%rbx
cs nopw 0x0(%rax,%rax,1)
nopl   (%rax)
cltq
imul   $0x66666667,%rax,%rcx
mov    %rcx,%rdx
shr    $0x3f,%rdx
sar    $0x22,%rcx
add    %edx,%ecx
add    %ecx,%ecx
lea    (%rcx,%rcx,4),%ecx
mov    %eax,%edx
sub    %ecx,%edx
add    $0x9,%eax
mov    %edx,%esi
neg    %esi
cmp    $0x13,%eax
cmovb  %edx,%esi
test   %edx,%edx
cmovns %edx,%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1030 <printf@plt>
movslq 0xc(%rsp),%rcx
imul   $0x66666667,%rcx,%rax
mov    %rax,%rdx
shr    $0x3f,%rdx
sar    $0x22,%rax
add    %edx,%eax
mov    %eax,0xc(%rsp)
add    $0x9,%ecx
cmp    $0x12,%ecx
ja     1160 <main+0x40>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [21 x i8] c"\0AEnter an integer > \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [4 x i8] c"%d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
store i32 0, i32* %1
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([21 x i8], [21 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)
%6 = load i32, i32* %2
%7 = srem i32 %6, 10
store i32 %7, i32* %3
br label %8
8: ; preds = %21, %0
%9 = load i32, i32* %2
%10 = icmp ne i32 %9, 0
br i1 %10, label %11, label %28
11: ; preds = %8
%12 = load i32, i32* %3
%13 = icmp slt i32 %12, 0
br i1 %13, label %14, label %21
14: ; preds = %11
%15 = load i32, i32* %2
%16 = sdiv i32 %15, 10
%17 = icmp ne i32 %16, 0
br i1 %17, label %18, label %21
18: ; preds = %14
%19 = load i32, i32* %3
%20 = mul nsw i32 %19, -1
store i32 %20, i32* %3
br label %21
21: ; preds = %18, %14, %11
%22 = load i32, i32* %3
%23 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i32 %22)
%24 = load i32, i32* %2
%25 = sdiv i32 %24, 10
store i32 %25, i32* %2
%26 = load i32, i32* %2
%27 = srem i32 %26, 10
store i32 %27, i32* %3
br label %8
28: ; preds = %8
ret i32 0
}

LLVM IR (-O2):
@.str = [21 x i8] c"\0AEnter an integer > \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [4 x i8] c"%d\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([21 x i8], [21 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 %21, label %7
7: ; preds = %0, %7
%8 = phi i32 [ %18, %7 ], [ %5, %0 ]
%9 = srem i32 %8, 10
%10 = icmp sgt i32 %9, -1
%11 = add i32 %8, 9
%12 = icmp ult i32 %11, 19
%13 = or i1 %10, %12
%14 = sub nsw i32 0, %9
%15 = select i1 %13, i32 %9, i32 %14
%16 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i32 %15)
%17 = load i32, i32* %1
%18 = sdiv i32 %17, 10
store i32 %18, i32* %1
%19 = add i32 %17, 9
%20 = icmp ult i32 %19, 19
br i1 %20, label %21, label %7
21: ; preds = %7, %0
ret i32 0
}