#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 _gcd(int, int);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, int *, int *);
int main() {
  int a, b;
  printf("Enter the numbers\n");
  scanf("%d%d", &a, &b);
  int gcd = _gcd(a, b), lcm = a * b / gcd;
  printf("GCD is %d\nLCM is %d", gcd, lcm);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xeba(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xebf(%rip),%rdi
lea    -0x8(%rbp),%rsi
lea    -0xc(%rbp),%rdx
call   1050 <scanf@plt>
mov    -0x8(%rbp),%edi
mov    -0xc(%rbp),%esi
call   1030 <_gcd@plt>
mov    %eax,-0x10(%rbp)
mov    -0x8(%rbp),%eax
imul   -0xc(%rbp),%eax
cltd
idivl  -0x10(%rbp)
mov    %eax,-0x14(%rbp)
mov    -0x10(%rbp),%esi
mov    -0x14(%rbp),%edx
lea    0xe8e(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xed1(%rip),%rdi
call   1040 <puts@plt>
lea    0xeac(%rip),%rdi
lea    0x4(%rsp),%rsi
mov    %rsp,%rdx
call   1060 <scanf@plt>
mov    0x4(%rsp),%edi
mov    (%rsp),%esi
call   1030 <_gcd@plt>
mov    %eax,%esi
mov    (%rsp),%eax
imul   0x4(%rsp),%eax
cltd
idiv   %esi
lea    0xe84(%rip),%rdi
mov    %eax,%edx
xor    %eax,%eax
call   1050 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [19 x i8] c"Enter the numbers\0A\00"
@.str.1 = [5 x i8] c"%d%d\00"
@.str.2 = [20 x i8] c"GCD is %d\0ALCM is %d\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
%5 = alloca i32
store i32 0, i32* %1
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str, i64 0, i64 0))
%7 = call i32 @scanf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), i32* %2, i32* %3)
%8 = load i32, i32* %2
%9 = load i32, i32* %3
%10 = call i32 @_gcd(i32 %8, i32 %9)
store i32 %10, i32* %4
%11 = load i32, i32* %2
%12 = load i32, i32* %3
%13 = mul nsw i32 %11, %12
%14 = load i32, i32* %4
%15 = sdiv i32 %13, %14
store i32 %15, i32* %5
%16 = load i32, i32* %4
%17 = load i32, i32* %5
%18 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str.2, i64 0, i64 0), i32 %16, i32 %17)
ret i32 0
}

LLVM IR (-O2):
@.str.1 = [5 x i8] c"%d%d\00"
@.str.2 = [20 x i8] c"GCD is %d\0ALCM is %d\00"
@str = [18 x i8] c"Enter the numbers\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = bitcast i32* %1 to i8*
%4 = bitcast i32* %2 to i8*
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([18 x i8], [18 x i8]* @str, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0), i32* %1, i32* %2)
%7 = load i32, i32* %1
%8 = load i32, i32* %2
%9 = call i32 @_gcd(i32 %7, i32 %8)
%10 = load i32, i32* %1
%11 = load i32, i32* %2
%12 = mul nsw i32 %11, %10
%13 = sdiv i32 %12, %9
%14 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([20 x i8], [20 x i8]* @.str.2, i64 0, i64 0), i32 %9, i32 %13)
ret i32 0
}