#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, ...);
void gcd(int u, int v) {
  int temp;
  printf("The GCD of %i and %i is ", u, v);
  while (v) {
    temp = u % v;
    u = v;
    v = temp;
  }
  printf("%i\n", u);
}


x86 assembly (clang, -O0):
<gcd>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %edi,-0x4(%rbp)
mov    %esi,-0x8(%rbp)
mov    -0x4(%rbp),%esi
mov    -0x8(%rbp),%edx
lea    0xed5(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
cmpl   $0x0,-0x8(%rbp)
je     1157 <gcd+0x47>
mov    -0x4(%rbp),%eax
cltd
idivl  -0x8(%rbp)
mov    %edx,-0xc(%rbp)
mov    -0x8(%rbp),%eax
mov    %eax,-0x4(%rbp)
mov    -0xc(%rbp),%eax
mov    %eax,-0x8(%rbp)
jmp    1132 <gcd+0x22>
mov    -0x4(%rbp),%esi
lea    0xeb8(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<gcd>:
push   %rbp
push   %rbx
push   %rax
mov    %esi,%ebp
mov    %edi,%ebx
lea    0xee2(%rip),%rdi
mov    %ebx,%esi
mov    %ebp,%edx
xor    %eax,%eax
call   1030 <printf@plt>
test   %ebp,%ebp
je     1141 <gcd+0x31>
nopl   (%rax)
mov    %ebp,%esi
mov    %ebx,%eax
cltd
idiv   %ebp
mov    %ebp,%ebx
mov    %edx,%ebp
test   %edx,%edx
jne    1130 <gcd+0x20>
jmp    1143 <gcd+0x33>
mov    %ebx,%esi
lea    0xecf(%rip),%rdi
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %rbp
jmp    1030 <printf@plt>

LLVM IR (-O0):
@.str = [25 x i8] c"The GCD of %i and %i is \00"
@.str.1 = [4 x i8] c"%i\0A\00"
define void @gcd(i32 %0, i32 %1) {
%3 = alloca i32
%4 = alloca i32
%5 = alloca i32
store i32 %0, i32* %3
store i32 %1, i32* %4
%6 = load i32, i32* %3
%7 = load i32, i32* %4
%8 = call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str, i64 0, i64 0), i32 %6, i32 %7)
br label %9
9: ; preds = %12, %2
%10 = load i32, i32* %4
%11 = icmp ne i32 %10, 0
br i1 %11, label %12, label %18
12: ; preds = %9
%13 = load i32, i32* %3
%14 = load i32, i32* %4
%15 = srem i32 %13, %14
store i32 %15, i32* %5
%16 = load i32, i32* %4
store i32 %16, i32* %3
%17 = load i32, i32* %5
store i32 %17, i32* %4
br label %9
18: ; preds = %9
%19 = load i32, i32* %3
%20 = call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %19)
ret void
}

LLVM IR (-O2):
@.str = [25 x i8] c"The GCD of %i and %i is \00"
@.str.1 = [4 x i8] c"%i\0A\00"
define void @gcd(i32 %0, i32 %1) {
%3 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str, i64 0, i64 0), i32 %0, i32 %1)
%4 = icmp eq i32 %1, 0
br i1 %4, label %10, label %5
5: ; preds = %2, %5
%6 = phi i32 [ %7, %5 ], [ %0, %2 ]
%7 = phi i32 [ %8, %5 ], [ %1, %2 ]
%8 = srem i32 %6, %7
%9 = icmp eq i32 %8, 0
br i1 %9, label %10, label %5
10: ; preds = %5, %2
%11 = phi i32 [ %0, %2 ], [ %7, %5 ]
%12 = tail call i32 (i8*, i32, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0), i32 %11)
ret void
}