#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);
int main() {
  printf("gcd(81, 9) = %d\n", gcd(81, 9));
  printf("gcd(7, 21) = %d\n", gcd(7, 21));
  printf("gcd(17, 6) = %d\n", gcd(17, 6));
  printf("gcd(116, 96) = %d\n", gcd(116, 96));
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
movl   $0x0,-0x4(%rbp)
mov    $0x51,%edi
mov    $0x9,%esi
call   1040 <gcd@plt>
mov    %eax,%esi
lea    0xeb9(%rip),%rdi
call   1030 <printf@plt>
mov    $0x7,%edi
mov    $0x15,%esi
call   1040 <gcd@plt>
mov    %eax,%esi
lea    0xead(%rip),%rdi
call   1030 <printf@plt>
mov    $0x11,%edi
mov    $0x6,%esi
call   1040 <gcd@plt>
mov    %eax,%esi
lea    0xea1(%rip),%rdi
call   1030 <printf@plt>
mov    $0x74,%edi
mov    $0x60,%esi
call   1040 <gcd@plt>
mov    %eax,%esi
lea    0xe95(%rip),%rdi
call   1030 <printf@plt>
xor    %eax,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %rax
mov    $0x51,%edi
mov    $0x9,%esi
call   1040 <gcd@plt>
lea    0xec9(%rip),%rdi
mov    %eax,%esi
call   1030 <printf@plt>
mov    $0x7,%edi
mov    $0x15,%esi
call   1040 <gcd@plt>
lea    0xebd(%rip),%rdi
mov    %eax,%esi
call   1030 <printf@plt>
mov    $0x11,%edi
mov    $0x6,%esi
call   1040 <gcd@plt>
lea    0xeb1(%rip),%rdi
mov    %eax,%esi
call   1030 <printf@plt>
mov    $0x74,%edi
mov    $0x60,%esi
call   1040 <gcd@plt>
lea    0xea5(%rip),%rdi
mov    %eax,%esi
call   1030 <printf@plt>
xor    %eax,%eax
pop    %rcx
ret

LLVM IR (-O0):
@.str = [17 x i8] c"gcd(81, 9) = %d\0A\00"
@.str.1 = [17 x i8] c"gcd(7, 21) = %d\0A\00"
@.str.2 = [17 x i8] c"gcd(17, 6) = %d\0A\00"
@.str.3 = [19 x i8] c"gcd(116, 96) = %d\0A\00"
define i32 @main() {
%1 = alloca i32
store i32 0, i32* %1
%2 = call i32 @gcd(i32 81, i32 9)
%3 = call i32 @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str, i64 0, i64 0), i32 %2)
%4 = call i32 @gcd(i32 7, i32 21)
%5 = call i32 @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.1, i64 0, i64 0), i32 %4)
%6 = call i32 @gcd(i32 17, i32 6)
%7 = call i32 @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.2, i64 0, i64 0), i32 %6)
%8 = call i32 @gcd(i32 116, i32 96)
%9 = call i32 @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.3, i64 0, i64 0), i32 %8)
ret i32 0
}

LLVM IR (-O2):
@.str = [17 x i8] c"gcd(81, 9) = %d\0A\00"
@.str.1 = [17 x i8] c"gcd(7, 21) = %d\0A\00"
@.str.2 = [17 x i8] c"gcd(17, 6) = %d\0A\00"
@.str.3 = [19 x i8] c"gcd(116, 96) = %d\0A\00"
define i32 @main() {
%1 = tail call i32 @gcd(i32 81, i32 9)
%2 = tail call i32 @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str, i64 0, i64 0), i32 %1)
%3 = tail call i32 @gcd(i32 7, i32 21)
%4 = tail call i32 @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.1, i64 0, i64 0), i32 %3)
%5 = tail call i32 @gcd(i32 17, i32 6)
%6 = tail call i32 @printf(i8* getelementptr inbounds ([17 x i8], [17 x i8]* @.str.2, i64 0, i64 0), i32 %5)
%7 = tail call i32 @gcd(i32 116, i32 96)
%8 = tail call i32 @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.3, i64 0, i64 0), i32 %7)
ret i32 0
}