#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 gcdEuclid(int, int);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, int *, int *);
int main() {
  int m, n, gcd;
  printf("Enter two numbers: ");
  scanf("%d %d", &m, &n);
  if (m < n)
    gcd = gcdEuclid(n, m);
  else
    gcd = gcdEuclid(m, n);
  printf("GCD of %d and %d is %d.", m, n, gcd);
}


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   1030 <printf@plt>
lea    0xec0(%rip),%rdi
lea    -0x8(%rbp),%rsi
lea    -0xc(%rbp),%rdx
call   1050 <scanf@plt>
mov    -0x8(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    1180 <main+0x50>
mov    -0xc(%rbp),%edi
mov    -0x8(%rbp),%esi
call   1040 <gcdEuclid@plt>
mov    %eax,-0x10(%rbp)
jmp    118e <main+0x5e>
mov    -0x8(%rbp),%edi
mov    -0xc(%rbp),%esi
call   1040 <gcdEuclid@plt>
mov    %eax,-0x10(%rbp)
mov    -0x8(%rbp),%esi
mov    -0xc(%rbp),%edx
mov    -0x10(%rbp),%ecx
lea    0xe7c(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
lea    0xec8(%rip),%rdi
xor    %eax,%eax
call   1030 <printf@plt>
lea    0xece(%rip),%rdi
lea    0x4(%rsp),%rsi
mov    %rsp,%rdx
call   1050 <scanf@plt>
mov    0x4(%rsp),%esi
mov    (%rsp),%eax
cmp    %eax,%esi
jge    1162 <main+0x32>
mov    %eax,%edi
jmp    1166 <main+0x36>
mov    %esi,%edi
mov    %eax,%esi
call   1040 <gcdEuclid@plt>
mov    0x4(%rsp),%esi
mov    (%rsp),%edx
lea    0xea1(%rip),%rdi
mov    %eax,%ecx
xor    %eax,%eax
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [20 x i8] c"Enter two numbers: \00"
@.str.1 = [6 x i8] c"%d %d\00"
@.str.2 = [24 x i8] c"GCD of %d and %d is %d.\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca i32
%3 = alloca i32
%4 = alloca i32
store i32 0, i32* %1
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0), i32* %2, i32* %3)
%7 = load i32, i32* %2
%8 = load i32, i32* %3
%9 = icmp slt i32 %7, %8
br i1 %9, label %10, label %14
10: ; preds = %0
%11 = load i32, i32* %3
%12 = load i32, i32* %2
%13 = call i32 @gcdEuclid(i32 %11, i32 %12)
store i32 %13, i32* %4
br label %18
14: ; preds = %0
%15 = load i32, i32* %2
%16 = load i32, i32* %3
%17 = call i32 @gcdEuclid(i32 %15, i32 %16)
store i32 %17, i32* %4
br label %18
18: ; preds = %14, %10
%19 = load i32, i32* %2
%20 = load i32, i32* %3
%21 = load i32, i32* %4
%22 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([24 x i8], [24 x i8]* @.str.2, i64 0, i64 0), i32 %19, i32 %20, i32 %21)
%23 = load i32, i32* %1
ret i32 %23
}

LLVM IR (-O2):
@.str = [20 x i8] c"Enter two numbers: \00"
@.str.1 = [6 x i8] c"%d %d\00"
@.str.2 = [24 x i8] c"GCD of %d and %d is %d.\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 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([20 x i8], [20 x i8]* @.str, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0), i32* %1, i32* %2)
%7 = load i32, i32* %1
%8 = load i32, i32* %2
%9 = icmp slt i32 %7, %8
br i1 %9, label %10, label %12
10: ; preds = %0
%11 = call i32 @gcdEuclid(i32 %8, i32 %7)
br label %14
12: ; preds = %0
%13 = call i32 @gcdEuclid(i32 %7, i32 %8)
br label %14
14: ; preds = %12, %10
%15 = phi i32 [ %11, %10 ], [ %13, %12 ]
%16 = load i32, i32* %1
%17 = load i32, i32* %2
%18 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([24 x i8], [24 x i8]* @.str.2, i64 0, i64 0), i32 %16, i32 %17, i32 %15)
ret i32 0
}