#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 *, ...);
void print(unsigned char *ptr, int n_len) {
  int n_loop = 0;
  if (n_len > 16) {
    printf("Data :");
    for (n_loop = 0; n_loop < n_len; n_loop++) {
      printf("%X", (unsigned char)*(ptr + n_loop));
    }
    printf("\n\n");
  } else if (n_len > 0) {
    printf("2 BYTE :");
    for (n_loop = 0; n_loop < n_len; n_loop++) {
      printf("|%2X|", (unsigned char)*(ptr + n_loop));
    }
    printf("\n\n");
  }
}


x86 assembly (clang, -O0):
<print>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    %esi,-0xc(%rbp)
movl   $0x0,-0x10(%rbp)
cmpl   $0x10,-0xc(%rbp)
jle    118c <print+0x7c>
lea    0xec9(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x0,-0x10(%rbp)
mov    -0x10(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    1179 <print+0x69>
mov    -0x8(%rbp),%rax
movslq -0x10(%rbp),%rcx
movzbl (%rax,%rcx,1),%esi
lea    0xea3(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    1145 <print+0x35>
lea    0xe8a(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    11f2 <print+0xe2>
cmpl   $0x0,-0xc(%rbp)
jle    11ed <print+0xdd>
lea    0xe70(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x0,-0x10(%rbp)
mov    -0x10(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    11df <print+0xcf>
mov    -0x8(%rbp),%rax
movslq -0x10(%rbp),%rcx
movzbl (%rax,%rcx,1),%esi
lea    0xe4c(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    11ab <print+0x9b>
lea    0xe24(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
jmp    11f2 <print+0xe2>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<print>:
push   %rbp
push   %r15
push   %r14
push   %rbx
push   %rax
mov    %esi,%ebp
mov    %rdi,%r15
cmp    $0x11,%esi
jl     116a <print+0x4a>
lea    0xec8(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %ebp,%ebp
lea    0xebf(%rip),%r14
xor    %ebx,%ebx
nopw   0x0(%rax,%rax,1)
movzbl (%r15,%rbx,1),%esi
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
add    $0x1,%rbx
cmp    %rbx,%rbp
jne    1150 <print+0x30>
jmp    11a8 <print+0x88>
test   %ebp,%ebp
jle    11be <print+0x9e>
lea    0xe95(%rip),%rdi
xor    %eax,%eax
call   1040 <printf@plt>
mov    %ebp,%ebp
lea    0xe8e(%rip),%r14
xor    %ebx,%ebx
nopw   0x0(%rax,%rax,1)
movzbl (%r15,%rbx,1),%esi
mov    %r14,%rdi
xor    %eax,%eax
call   1040 <printf@plt>
add    $0x1,%rbx
cmp    %rbx,%rbp
jne    1190 <print+0x70>
lea    0xe6a(%rip),%rdi
add    $0x8,%rsp
pop    %rbx
pop    %r14
pop    %r15
pop    %rbp
jmp    1030 <puts@plt>
add    $0x8,%rsp
pop    %rbx
pop    %r14
pop    %r15
pop    %rbp
ret

LLVM IR (-O0):
@.str = [7 x i8] c"Data :\00"
@.str.1 = [3 x i8] c"%X\00"
@.str.2 = [3 x i8] c"\0A\0A\00"
@.str.3 = [9 x i8] c"2 BYTE :\00"
@.str.4 = [6 x i8] c"|%2X|\00"
define void @print(i8* %0, i32 %1) {
%3 = alloca i8*
%4 = alloca i32
%5 = alloca i32
store i8* %0, i8** %3
store i32 %1, i32* %4
store i32 0, i32* %5
%6 = load i32, i32* %4
%7 = icmp sgt i32 %6, 16
br i1 %7, label %8, label %27
8: ; preds = %2
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0))
store i32 0, i32* %5
br label %10
10: ; preds = %22, %8
%11 = load i32, i32* %5
%12 = load i32, i32* %4
%13 = icmp slt i32 %11, %12
br i1 %13, label %14, label %25
14: ; preds = %10
%15 = load i8*, i8** %3
%16 = load i32, i32* %5
%17 = sext i32 %16 to i64
%18 = getelementptr inbounds i8, i8* %15, i64 %17
%19 = load i8, i8* %18
%20 = zext i8 %19 to i32
%21 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 %20)
br label %22
22: ; preds = %14
%23 = load i32, i32* %5
%24 = add nsw i32 %23, 1
store i32 %24, i32* %5
br label %10
25: ; preds = %10
%26 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0))
br label %50
27: ; preds = %2
%28 = load i32, i32* %4
%29 = icmp sgt i32 %28, 0
br i1 %29, label %30, label %49
30: ; preds = %27
%31 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.3, i64 0, i64 0))
store i32 0, i32* %5
br label %32
32: ; preds = %44, %30
%33 = load i32, i32* %5
%34 = load i32, i32* %4
%35 = icmp slt i32 %33, %34
br i1 %35, label %36, label %47
36: ; preds = %32
%37 = load i8*, i8** %3
%38 = load i32, i32* %5
%39 = sext i32 %38 to i64
%40 = getelementptr inbounds i8, i8* %37, i64 %39
%41 = load i8, i8* %40
%42 = zext i8 %41 to i32
%43 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.4, i64 0, i64 0), i32 %42)
br label %44
44: ; preds = %36
%45 = load i32, i32* %5
%46 = add nsw i32 %45, 1
store i32 %46, i32* %5
br label %32
47: ; preds = %32
%48 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0))
br label %49
49: ; preds = %47, %27
br label %50
50: ; preds = %49, %25
ret void
}

LLVM IR (-O2):
@.str = [7 x i8] c"Data :\00"
@.str.1 = [3 x i8] c"%X\00"
@.str.3 = [9 x i8] c"2 BYTE :\00"
@.str.4 = [6 x i8] c"|%2X|\00"
@str.5 = [2 x i8] c"\0A\00"
define void @print(i8* nocapture %0, i32 %1) {
%3 = icmp sgt i32 %1, 16
br i1 %3, label %4, label %15
4: ; preds = %2
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @.str, i64 0, i64 0))
%6 = zext i32 %1 to i64
br label %7
7: ; preds = %4, %7
%8 = phi i64 [ 0, %4 ], [ %13, %7 ]
%9 = getelementptr inbounds i8, i8* %0, i64 %8
%10 = load i8, i8* %9
%11 = zext i8 %10 to i32
%12 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i32 %11)
%13 = add nuw nsw i64 %8, 1
%14 = icmp eq i64 %13, %6
br i1 %14, label %28, label %7
15: ; preds = %2
%16 = icmp sgt i32 %1, 0
br i1 %16, label %17, label %31
17: ; preds = %15
%18 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([9 x i8], [9 x i8]* @.str.3, i64 0, i64 0))
%19 = zext i32 %1 to i64
br label %20
20: ; preds = %17, %20
%21 = phi i64 [ 0, %17 ], [ %26, %20 ]
%22 = getelementptr inbounds i8, i8* %0, i64 %21
%23 = load i8, i8* %22
%24 = zext i8 %23 to i32
%25 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([6 x i8], [6 x i8]* @.str.4, i64 0, i64 0), i32 %24)
%26 = add nuw nsw i64 %21, 1
%27 = icmp eq i64 %26, %19
br i1 %27, label %28, label %20
28: ; preds = %20, %7
%29 = phi i8* [ getelementptr inbounds ([2 x i8], [2 x i8]* @str.5, i64 0, i64 0), %7 ], [ getelementptr inbounds ([2 x i8], [2 x i8]* @str.5, i64 0, i64 0), %20 ]
%30 = tail call i32 @puts(i8* dereferenceable(1) %29)
br label %31
31: ; preds = %28, %15
ret void
}