#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 integer;
  int mod;
  printf("\n");
  printf("Enter an integer > ");
  scanf("%d", &integer);
  printf("\n");
  while (integer != 0) {
    mod = integer % 10;
    printf("%d\n", mod);
    integer /= 10;
  }
  printf("That's all, have a nice day!\n");
  return (0);
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xf01(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xebc(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xec2(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
lea    0xed5(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
cmpl   $0x0,-0x8(%rbp)
je     11a5 <main+0x85>
mov    -0x8(%rbp),%eax
mov    $0xa,%ecx
cltd
idiv   %ecx
mov    %edx,-0xc(%rbp)
mov    -0xc(%rbp),%esi
lea    0xe8c(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%eax
mov    $0xa,%ecx
cltd
idiv   %ecx
mov    %eax,-0x8(%rbp)
jmp    1169 <main+0x49>
lea    0xe6f(%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    $0xa,%edi
call   1030 <putchar@plt>
lea    0xeaa(%rip),%rdi
xor    %eax,%eax
call   1050 <printf@plt>
lea    0xeb0(%rip),%rdi
lea    0xc(%rsp),%rsi
call   1060 <scanf@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
mov    0xc(%rsp),%eax
test   %eax,%eax
je     11dd <main+0x9d>
lea    0xe90(%rip),%rbx
nopw   0x0(%rax,%rax,1)
movslq %eax,%rsi
imul   $0x66666667,%rsi,%rax
mov    %rax,%rcx
shr    $0x3f,%rcx
sar    $0x22,%rax
add    %ecx,%eax
add    %eax,%eax
lea    (%rax,%rax,4),%eax
sub    %eax,%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1050 <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     1190 <main+0x50>
lea    0xe37(%rip),%rdi
call   1040 <puts@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbx
ret

LLVM IR (-O0):
@.str = [2 x i8] c"\0A\00"
@.str.1 = [20 x i8] c"Enter an integer > \00"
@.str.2 = [3 x i8] c"%d\00"
@.str.3 = [4 x i8] c"%d\0A\00"
@.str.4 = [30 x i8] c"That's all, have a nice day!\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 ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.1, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %2)
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
br label %8
8: ; preds = %11, %0
%9 = load i32, i32* %2
%10 = icmp ne i32 %9, 0
br i1 %10, label %11, label %18
11: ; preds = %8
%12 = load i32, i32* %2
%13 = srem i32 %12, 10
store i32 %13, i32* %3
%14 = load i32, i32* %3
%15 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i32 %14)
%16 = load i32, i32* %2
%17 = sdiv i32 %16, 10
store i32 %17, i32* %2
br label %8
18: ; preds = %8
%19 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([30 x i8], [30 x i8]* @.str.4, i64 0, i64 0))
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [20 x i8] c"Enter an integer > \00"
@.str.2 = [3 x i8] c"%d\00"
@.str.3 = [4 x i8] c"%d\0A\00"
@str = [29 x i8] c"That's all, have a nice day!\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 @putchar(i32 10)
%4 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([20 x i8], [20 x i8]* @.str.1, i64 0, i64 0))
%5 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0), i32* %1)
%6 = call i32 @putchar(i32 10)
%7 = load i32, i32* %1
%8 = icmp eq i32 %7, 0
br i1 %8, label %17, label %9
9: ; preds = %0, %9
%10 = phi i32 [ %14, %9 ], [ %7, %0 ]
%11 = srem i32 %10, 10
%12 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.3, i64 0, i64 0), i32 %11)
%13 = load i32, i32* %1
%14 = sdiv i32 %13, 10
store i32 %14, i32* %1
%15 = add i32 %13, 9
%16 = icmp ult i32 %15, 19
br i1 %16, label %17, label %9
17: ; preds = %9, %0
%18 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @str, i64 0, i64 0))
ret i32 0
}