#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 /*<<< orphan*/ buff;

/* Variables and functions */
int /*<<< orphan*/ memset(char *, int /*<<< orphan*/, int);
int /*<<< orphan*/ sprintf(char *, char *, unsigned char, unsigned char,
                           unsigned char, unsigned char, unsigned char,
                           unsigned char);
char *ethernet_mactoa(unsigned char *sa_data) {
  static char buff[256];
  unsigned char *ptr = sa_data;
  memset(buff, 0, sizeof(buff));
  sprintf(buff, "%02X:%02X:%02X:%02X:%02X:%02X", (ptr[0] & 0377),
          (ptr[1] & 0377), (ptr[2] & 0377), (ptr[3] & 0377), (ptr[4] & 0377),
          (ptr[5] & 0377));
  return (buff);
}


x86 assembly (clang, -O0):
<ethernet_mactoa>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    -0x8(%rbp),%rax
mov    %rax,-0x10(%rbp)
lea    0x2f05(%rip),%rdi
xor    %esi,%esi
mov    $0x100,%edx
call   1030 <memset@plt>
mov    -0x10(%rbp),%rax
movzbl (%rax),%eax
and    $0xff,%eax
mov    %al,%dl
mov    -0x10(%rbp),%rax
movzbl 0x1(%rax),%eax
and    $0xff,%eax
mov    %al,%cl
mov    -0x10(%rbp),%rax
movzbl 0x2(%rax),%eax
and    $0xff,%eax
mov    %al,%r8b
mov    -0x10(%rbp),%rax
movzbl 0x3(%rax),%eax
and    $0xff,%eax
mov    %al,%r9b
mov    -0x10(%rbp),%rax
movzbl 0x4(%rax),%eax
and    $0xff,%eax
mov    %al,%r10b
mov    -0x10(%rbp),%rax
movzbl 0x5(%rax),%eax
and    $0xff,%eax
lea    0x2e98(%rip),%rdi
lea    0xe51(%rip),%rsi
movzbl %dl,%edx
movzbl %cl,%ecx
movzbl %r8b,%r8d
movzbl %r9b,%r9d
movzbl %r10b,%r10d
mov    %r10d,(%rsp)
movzbl %al,%eax
mov    %eax,0x8(%rsp)
call   1040 <sprintf@plt>
lea    0x2e68(%rip),%rax
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<ethernet_mactoa>:
push   %r14
push   %rbx
push   %rax
mov    %rdi,%rbx
lea    0x2f12(%rip),%r14
mov    %r14,%rdi
xor    %esi,%esi
mov    $0x100,%edx
call   1030 <memset@plt>
movzbl (%rbx),%edx
movzbl 0x1(%rbx),%ecx
movzbl 0x2(%rbx),%r8d
movzbl 0x3(%rbx),%r9d
movzbl 0x4(%rbx),%eax
movzbl 0x5(%rbx),%ebx
lea    0xea3(%rip),%rsi
mov    %r14,%rdi
push   %rbx
push   %rax
call   1040 <sprintf@plt>
add    $0x10,%rsp
mov    %r14,%rax
add    $0x8,%rsp
pop    %rbx
pop    %r14
ret

LLVM IR (-O0):
@ethernet_mactoa.buff = internal global [256 x i8] zeroinitializer
@.str = [30 x i8] c"%02X:%02X:%02X:%02X:%02X:%02X\00"
define i8* @ethernet_mactoa(i8* %0) {
%2 = alloca i8*
%3 = alloca i8*
store i8* %0, i8** %2
%4 = load i8*, i8** %2
store i8* %4, i8** %3
%5 = call i32 @memset(i8* getelementptr inbounds ([256 x i8], [256 x i8]* @ethernet_mactoa.buff, i64 0, i64 0), i32 0, i32 256)
%6 = load i8*, i8** %3
%7 = getelementptr inbounds i8, i8* %6, i64 0
%8 = load i8, i8* %7
%9 = zext i8 %8 to i32
%10 = and i32 %9, 255
%11 = trunc i32 %10 to i8
%12 = load i8*, i8** %3
%13 = getelementptr inbounds i8, i8* %12, i64 1
%14 = load i8, i8* %13
%15 = zext i8 %14 to i32
%16 = and i32 %15, 255
%17 = trunc i32 %16 to i8
%18 = load i8*, i8** %3
%19 = getelementptr inbounds i8, i8* %18, i64 2
%20 = load i8, i8* %19
%21 = zext i8 %20 to i32
%22 = and i32 %21, 255
%23 = trunc i32 %22 to i8
%24 = load i8*, i8** %3
%25 = getelementptr inbounds i8, i8* %24, i64 3
%26 = load i8, i8* %25
%27 = zext i8 %26 to i32
%28 = and i32 %27, 255
%29 = trunc i32 %28 to i8
%30 = load i8*, i8** %3
%31 = getelementptr inbounds i8, i8* %30, i64 4
%32 = load i8, i8* %31
%33 = zext i8 %32 to i32
%34 = and i32 %33, 255
%35 = trunc i32 %34 to i8
%36 = load i8*, i8** %3
%37 = getelementptr inbounds i8, i8* %36, i64 5
%38 = load i8, i8* %37
%39 = zext i8 %38 to i32
%40 = and i32 %39, 255
%41 = trunc i32 %40 to i8
%42 = call i32 @sprintf(i8* getelementptr inbounds ([256 x i8], [256 x i8]* @ethernet_mactoa.buff, i64 0, i64 0), i8* getelementptr inbounds ([30 x i8], [30 x i8]* @.str, i64 0, i64 0), i8 zeroext %11, i8 zeroext %17, i8 zeroext %23, i8 zeroext %29, i8 zeroext %35, i8 zeroext %41)
ret i8* getelementptr inbounds ([256 x i8], [256 x i8]* @ethernet_mactoa.buff, i64 0, i64 0)
}

LLVM IR (-O2):
@ethernet_mactoa.buff = internal global [256 x i8] zeroinitializer
@.str = [30 x i8] c"%02X:%02X:%02X:%02X:%02X:%02X\00"
define i8* @ethernet_mactoa(i8* nocapture %0) {
%2 = tail call i32 @memset(i8* getelementptr inbounds ([256 x i8], [256 x i8]* @ethernet_mactoa.buff, i64 0, i64 0), i32 0, i32 256)
%3 = load i8, i8* %0
%4 = getelementptr inbounds i8, i8* %0, i64 1
%5 = load i8, i8* %4
%6 = getelementptr inbounds i8, i8* %0, i64 2
%7 = load i8, i8* %6
%8 = getelementptr inbounds i8, i8* %0, i64 3
%9 = load i8, i8* %8
%10 = getelementptr inbounds i8, i8* %0, i64 4
%11 = load i8, i8* %10
%12 = getelementptr inbounds i8, i8* %0, i64 5
%13 = load i8, i8* %12
%14 = tail call i32 @sprintf(i8* dereferenceable(1) getelementptr inbounds ([256 x i8], [256 x i8]* @ethernet_mactoa.buff, i64 0, i64 0), i8* dereferenceable(1) getelementptr inbounds ([30 x i8], [30 x i8]* @.str, i64 0, i64 0), i8 zeroext %3, i8 zeroext %5, i8 zeroext %7, i8 zeroext %9, i8 zeroext %11, i8 zeroext %13)
ret i8* getelementptr inbounds ([256 x i8], [256 x i8]* @ethernet_mactoa.buff, i64 0, i64 0)
}