#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 abs(int);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, int *);
int main(void) {
  int j, k;
  printf("\nEnter an integer > ");
  scanf("%d", &j);
  while (abs(j) >= 10) {
    k = j % 10;
    printf("\n%d", abs(k));
    j = j / 10;
  };
  printf("\n%d", j);
  printf("\nThat'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    0xeba(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xec2(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1050 <scanf@plt>
mov    -0x8(%rbp),%edi
call   1030 <abs@plt>
cmp    $0xa,%eax
jl     11a7 <main+0x77>
mov    -0x8(%rbp),%eax
mov    $0xa,%ecx
cltd
idiv   %ecx
mov    %edx,-0xc(%rbp)
mov    -0xc(%rbp),%edi
call   1030 <abs@plt>
mov    %eax,%esi
lea    0xe88(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
mov    -0x8(%rbp),%eax
mov    $0xa,%ecx
cltd
idiv   %ecx
mov    %eax,-0x8(%rbp)
jmp    115d <main+0x2d>
mov    -0x8(%rbp),%esi
lea    0xe64(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xe5a(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbx
sub    $0x10,%rsp
lea    0xec4(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xecc(%rip),%rdi
lea    0xc(%rsp),%rsi
call   1050 <scanf@plt>
mov    0xc(%rsp),%esi
mov    %esi,%eax
neg    %eax
cmovs  %esi,%eax
cmp    $0xa,%eax
jb     11c8 <main+0x98>
lea    0xeaa(%rip),%rbx
nopl   0x0(%rax,%rax,1)
movslq %esi,%rax
imul   $0x66666667,%rax,%rcx
mov    %rcx,%rdx
shr    $0x3f,%rdx
sar    $0x22,%rcx
add    %edx,%ecx
add    %ecx,%ecx
lea    (%rcx,%rcx,4),%ecx
sub    %ecx,%eax
mov    %eax,%esi
neg    %esi
cmovs  %eax,%esi
mov    %rbx,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
movslq 0xc(%rsp),%rax
imul   $0x66666667,%rax,%rsi
mov    %rsi,%rax
shr    $0x3f,%rax
sar    $0x22,%rsi
add    %eax,%esi
mov    %esi,0xc(%rsp)
mov    %esi,%eax
neg    %eax
cmovs  %esi,%eax
cmp    $0x9,%eax
ja     1170 <main+0x40>
lea    0xe46(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xe3c(%rip),%rdi
call   1030 <puts@plt>
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"\0A%d\00"
@.str.3 = [31 x i8] c"\0AThat'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 ([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)
br label %6
6: ; preds = %10, %0
%7 = load i32, i32* %2
%8 = call i32 @abs(i32 %7)
%9 = icmp sge i32 %8, 10
br i1 %9, label %10, label %18
10: ; preds = %6
%11 = load i32, i32* %2
%12 = srem i32 %11, 10
store i32 %12, i32* %3
%13 = load i32, i32* %3
%14 = call i32 @abs(i32 %13)
%15 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i32 %14)
%16 = load i32, i32* %2
%17 = sdiv i32 %16, 10
store i32 %17, i32* %2
br label %6
18: ; preds = %6
%19 = load i32, i32* %2
%20 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i32 %19)
%21 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([31 x i8], [31 x i8]* @.str.3, i64 0, i64 0))
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"\0A%d\00"
@str = [30 x i8] c"\0AThat's all, have a nice day!\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 = call i32 @llvm.abs.i32(i32 %5, i1 true)
%7 = icmp ugt i32 %6, 9
br i1 %7, label %8, label %17
8: ; preds = %0, %8
%9 = phi i32 [ %14, %8 ], [ %5, %0 ]
%10 = srem i32 %9, 10
%11 = call i32 @llvm.abs.i32(i32 %10, i1 true)
%12 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i32 %11)
%13 = load i32, i32* %1
%14 = sdiv i32 %13, 10
store i32 %14, i32* %1
%15 = call i32 @llvm.abs.i32(i32 %14, i1 true)
%16 = icmp ugt i32 %15, 9
br i1 %16, label %8, label %17
17: ; preds = %8, %0
%18 = phi i32 [ %5, %0 ], [ %14, %8 ]
%19 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([4 x i8], [4 x i8]* @.str.2, i64 0, i64 0), i32 %18)
%20 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([30 x i8], [30 x i8]* @str, i64 0, i64 0))
ret i32 0
}