#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 pow(int, int);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, int *);
int main(void) {
  int n, arm = 0, num, d;
  printf("Enter three digit integer to check whether it is armstrong or not: ");
  scanf("%d", &n);
  num = n;
  while (n != 0) {
    d = n % 10;
    arm = arm + pow(d, 3);
    n = n / 10;
  }
  if (num == arm)
    printf("\nThe given number %d is armstrong", num);
  else
    printf("\nThe given number %d is not an armstrong", num);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
movl   $0x0,-0xc(%rbp)
lea    0xeb3(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xee9(%rip),%rdi
lea    -0x8(%rbp),%rsi
call   1040 <scanf@plt>
mov    -0x8(%rbp),%eax
mov    %eax,-0x10(%rbp)
cmpl   $0x0,-0x8(%rbp)
je     11b2 <main+0x82>
mov    -0x8(%rbp),%eax
mov    $0xa,%ecx
cltd
idiv   %ecx
mov    %edx,-0x14(%rbp)
mov    -0xc(%rbp),%eax
mov    %eax,-0x18(%rbp)
mov    -0x14(%rbp),%edi
mov    $0x3,%esi
call   1050 <pow@plt>
mov    %eax,%ecx
mov    -0x18(%rbp),%eax
add    %ecx,%eax
mov    %eax,-0xc(%rbp)
mov    -0x8(%rbp),%eax
mov    $0xa,%ecx
cltd
idiv   %ecx
mov    %eax,-0x8(%rbp)
jmp    116a <main+0x3a>
mov    -0x10(%rbp),%eax
cmp    -0xc(%rbp),%eax
jne    11d4 <main+0xa4>
mov    -0x10(%rbp),%esi
lea    0xe7f(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    11e5 <main+0xb5>
mov    -0x10(%rbp),%esi
lea    0xe8b(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rbp
push   %rbx
push   %rax
lea    0xec6(%rip),%rdi
xor    %ebp,%ebp
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xefa(%rip),%rdi
lea    0x4(%rsp),%rsi
call   1040 <scanf@plt>
mov    0x4(%rsp),%ebx
test   %ebx,%ebx
je     11c5 <main+0x95>
mov    %ebx,%eax
xchg   %ax,%ax
movslq %eax,%rdi
imul   $0x66666667,%rdi,%rax
mov    %rax,%rcx
shr    $0x3f,%rcx
sar    $0x22,%rax
add    %ecx,%eax
add    %eax,%eax
lea    (%rax,%rax,4),%eax
sub    %eax,%edi
mov    $0x3,%esi
call   1050 <pow@plt>
add    %eax,%ebp
movslq 0x4(%rsp),%rcx
imul   $0x66666667,%rcx,%rax
mov    %rax,%rdx
shr    $0x3f,%rdx
sar    $0x22,%rax
add    %edx,%eax
mov    %eax,0x4(%rsp)
add    $0x9,%ecx
cmp    $0x12,%ecx
ja     1160 <main+0x30>
cmp    %ebp,%ebx
lea    0xe8f(%rip),%rax
lea    0xeaa(%rip),%rdi
cmove  %rax,%rdi
jmp    11cc <main+0x9c>
lea    0xe7b(%rip),%rdi
mov    %ebx,%esi
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %rbp
ret

LLVM IR (-O0):
@.str = [68 x i8] c"Enter three digit integer to check whether it is armstrong or not: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [34 x i8] c"\0AThe given number %d is armstrong\00"
@.str.3 = [41 x i8] c"\0AThe given number %d is not an armstrong\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
%5 = alloca i32
store i32 0, i32* %1
store i32 0, i32* %3
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([68 x i8], [68 x i8]* @.str, i64 0, i64 0))
%7 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32* %2)
%8 = load i32, i32* %2
store i32 %8, i32* %4
br label %9
9: ; preds = %12, %0
%10 = load i32, i32* %2
%11 = icmp ne i32 %10, 0
br i1 %11, label %12, label %21
12: ; preds = %9
%13 = load i32, i32* %2
%14 = srem i32 %13, 10
store i32 %14, i32* %5
%15 = load i32, i32* %3
%16 = load i32, i32* %5
%17 = call i32 @pow(i32 %16, i32 3)
%18 = add nsw i32 %15, %17
store i32 %18, i32* %3
%19 = load i32, i32* %2
%20 = sdiv i32 %19, 10
store i32 %20, i32* %2
br label %9
21: ; preds = %9
%22 = load i32, i32* %4
%23 = load i32, i32* %3
%24 = icmp eq i32 %22, %23
br i1 %24, label %25, label %28
25: ; preds = %21
%26 = load i32, i32* %4
%27 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([34 x i8], [34 x i8]* @.str.2, i64 0, i64 0), i32 %26)
br label %31
28: ; preds = %21
%29 = load i32, i32* %4
%30 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([41 x i8], [41 x i8]* @.str.3, i64 0, i64 0), i32 %29)
br label %31
31: ; preds = %28, %25
ret i32 0
}

LLVM IR (-O2):
@.str = [68 x i8] c"Enter three digit integer to check whether it is armstrong or not: \00"
@.str.1 = [3 x i8] c"%d\00"
@.str.2 = [34 x i8] c"\0AThe given number %d is armstrong\00"
@.str.3 = [41 x i8] c"\0AThe given number %d is not an armstrong\00"
define i32 @main() {
%1 = alloca i32
%2 = bitcast i32* %1 to i8*
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([68 x i8], [68 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 %20, label %7
7: ; preds = %0, %7
%8 = phi i32 [ %12, %7 ], [ 0, %0 ]
%9 = phi i32 [ %14, %7 ], [ %5, %0 ]
%10 = srem i32 %9, 10
%11 = call i32 @pow(i32 %10, i32 3)
%12 = add nsw i32 %11, %8
%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 %7
17: ; preds = %7
%18 = icmp eq i32 %5, %12
%19 = select i1 %18, i8* getelementptr inbounds ([34 x i8], [34 x i8]* @.str.2, i64 0, i64 0), i8* getelementptr inbounds ([41 x i8], [41 x i8]* @.str.3, i64 0, i64 0)
br label %20
20: ; preds = %17, %0
%21 = phi i8* [ getelementptr inbounds ([34 x i8], [34 x i8]* @.str.2, i64 0, i64 0), %0 ], [ %19, %17 ]
%22 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) %21, i32 %5)
ret i32 0
}