#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 */
typedef int u_int8_t;

/* Variables and functions */
int /*<<< orphan*/ printf(char *, int, char *);
void disp_mac(u_int8_t *mac) {
  int i;
  for (i = 0; i < 6; i++) {
    printf("%02x%s", mac[i], (i != 5) ? ":" : "");
  }
}


x86 assembly (clang, -O0):
<disp_mac>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
movl   $0x0,-0xc(%rbp)
cmpl   $0x6,-0xc(%rbp)
jge    116a <disp_mac+0x5a>
mov    -0x8(%rbp),%rax
movslq -0xc(%rbp),%rcx
mov    (%rax,%rcx,4),%esi
mov    -0xc(%rbp),%ecx
lea    0xec6(%rip),%rdx
lea    0xebe(%rip),%rax
cmp    $0x5,%ecx
cmovne %rax,%rdx
lea    0xea9(%rip),%rdi
call   1030 <printf@plt>
mov    -0xc(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0xc(%rbp)
jmp    1123 <disp_mac+0x13>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<disp_mac>:
push   %r15
push   %r14
push   %rbx
mov    %rdi,%rbx
mov    (%rdi),%esi
lea    0xedf(%rip),%r14
lea    0xedf(%rip),%r15
mov    %r14,%rdi
mov    %r15,%rdx
call   1030 <printf@plt>
mov    0x4(%rbx),%esi
mov    %r14,%rdi
mov    %r15,%rdx
call   1030 <printf@plt>
mov    0x8(%rbx),%esi
mov    %r14,%rdi
mov    %r15,%rdx
call   1030 <printf@plt>
mov    0xc(%rbx),%esi
mov    %r14,%rdi
mov    %r15,%rdx
call   1030 <printf@plt>
mov    0x10(%rbx),%esi
mov    %r14,%rdi
mov    %r15,%rdx
call   1030 <printf@plt>
mov    0x14(%rbx),%esi
lea    0xe93(%rip),%rdx
mov    %r14,%rdi
pop    %rbx
pop    %r14
pop    %r15
jmp    1030 <printf@plt>

LLVM IR (-O0):
@.str = [7 x i8] c"%02x%s\00"
@.str.1 = [2 x i8] c":\00"
@.str.2 = [1 x i8] zeroinitializer
define void @disp_mac(i32* %0) {
%2 = alloca i32*
%3 = alloca i32
store i32* %0, i32** %2
store i32 0, i32* %3
br label %4
4: ; preds = %18, %1
%5 = load i32, i32* %3
%6 = icmp slt i32 %5, 6
br i1 %6, label %7, label %21
7: ; preds = %4
%8 = load i32*, i32** %2
%9 = load i32, i32* %3
%10 = sext i32 %9 to i64
%11 = getelementptr inbounds i32, i32* %8, i64 %10
%12 = load i32, i32* %11
%13 = load i32, i32* %3
%14 = icmp ne i32 %13, 5
%15 = zext i1 %14 to i64
%16 = select i1 %14, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0), i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str.2, i64 0, i64 0)
%17 = call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i32 %12, i8* %16)
br label %18
18: ; preds = %7
%19 = load i32, i32* %3
%20 = add nsw i32 %19, 1
store i32 %20, i32* %3
br label %4
21: ; preds = %4
ret void
}

LLVM IR (-O2):
@.str = [7 x i8] c"%02x%s\00"
@.str.1 = [2 x i8] c":\00"
@.str.2 = [1 x i8] zeroinitializer
define void @disp_mac(i32* nocapture %0) {
%2 = load i32, i32* %0
%3 = tail call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i32 %2, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
%4 = getelementptr inbounds i32, i32* %0, i64 1
%5 = load i32, i32* %4
%6 = tail call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i32 %5, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
%7 = getelementptr inbounds i32, i32* %0, i64 2
%8 = load i32, i32* %7
%9 = tail call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i32 %8, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
%10 = getelementptr inbounds i32, i32* %0, i64 3
%11 = load i32, i32* %10
%12 = tail call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i32 %11, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
%13 = getelementptr inbounds i32, i32* %0, i64 4
%14 = load i32, i32* %13
%15 = tail call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i32 %14, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
%16 = getelementptr inbounds i32, i32* %0, i64 5
%17 = load i32, i32* %16
%18 = tail call i32 @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0), i32 %17, i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str.2, i64 0, i64 0))
ret void
}