#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 print16(const unsigned char *k) {
  int i;
  printf("0");
  for (i = 0; i < 16; ++i)
    printf("+%u*256^%d", 255 & (int)k[i], i);
}


x86 assembly (clang, -O0):
<print16>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
lea    0xedd(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movl   $0x0,-0xc(%rbp)
cmpl   $0x10,-0xc(%rbp)
jge    116c <print16+0x5c>
mov    -0x8(%rbp),%rax
movslq -0xc(%rbp),%rcx
movzbl (%rax,%rcx,1),%esi
and    $0xff,%esi
mov    -0xc(%rbp),%edx
lea    0xeab(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0xc(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0xc(%rbp)
jmp    1131 <print16+0x21>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<print16>:
push   %r14
push   %rbx
push   %rax
mov    %rdi,%rbx
mov    $0x30,%edi
call   1030 <putchar@plt>
movzbl (%rbx),%esi
lea    0xec5(%rip),%r14
mov    %r14,%rdi
xor    %edx,%edx
xor    %eax,%eax
call   1040 <printf@plt>
movzbl 0x1(%rbx),%esi
mov    %r14,%rdi
mov    $0x1,%edx
xor    %eax,%eax
call   1040 <printf@plt>
movzbl 0x2(%rbx),%esi
mov    %r14,%rdi
mov    $0x2,%edx
xor    %eax,%eax
call   1040 <printf@plt>
movzbl 0x3(%rbx),%esi
mov    %r14,%rdi
mov    $0x3,%edx
xor    %eax,%eax
call   1040 <printf@plt>
movzbl 0x4(%rbx),%esi
mov    %r14,%rdi
mov    $0x4,%edx
xor    %eax,%eax
call   1040 <printf@plt>
movzbl 0x5(%rbx),%esi
mov    %r14,%rdi
mov    $0x5,%edx
xor    %eax,%eax
call   1040 <printf@plt>
movzbl 0x6(%rbx),%esi
mov    %r14,%rdi
mov    $0x6,%edx
xor    %eax,%eax
call   1040 <printf@plt>
movzbl 0x7(%rbx),%esi
mov    %r14,%rdi
mov    $0x7,%edx
xor    %eax,%eax
call   1040 <printf@plt>
movzbl 0x8(%rbx),%esi
mov    %r14,%rdi
mov    $0x8,%edx
xor    %eax,%eax
call   1040 <printf@plt>
movzbl 0x9(%rbx),%esi
mov    %r14,%rdi
mov    $0x9,%edx
xor    %eax,%eax
call   1040 <printf@plt>
movzbl 0xa(%rbx),%esi
mov    %r14,%rdi
mov    $0xa,%edx
xor    %eax,%eax
call   1040 <printf@plt>
movzbl 0xb(%rbx),%esi
mov    %r14,%rdi
mov    $0xb,%edx
xor    %eax,%eax
call   1040 <printf@plt>
movzbl 0xc(%rbx),%esi
mov    %r14,%rdi
mov    $0xc,%edx
xor    %eax,%eax
call   1040 <printf@plt>
movzbl 0xd(%rbx),%esi
mov    %r14,%rdi
mov    $0xd,%edx
xor    %eax,%eax
call   1040 <printf@plt>
movzbl 0xe(%rbx),%esi
mov    %r14,%rdi
mov    $0xe,%edx
xor    %eax,%eax
call   1040 <printf@plt>
movzbl 0xf(%rbx),%esi
mov    %r14,%rdi
mov    $0xf,%edx
xor    %eax,%eax
add    $0x8,%rsp
pop    %rbx
pop    %r14
jmp    1040 <printf@plt>

LLVM IR (-O0):
@.str = [2 x i8] c"0\00"
@.str.1 = [11 x i8] c"+%u*256^%d\00"
define void @print16(i8* %0) {
%2 = alloca i8*
%3 = alloca i32
store i8* %0, i8** %2
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
store i32 0, i32* %3
br label %5
5: ; preds = %18, %1
%6 = load i32, i32* %3
%7 = icmp slt i32 %6, 16
br i1 %7, label %8, label %21
8: ; preds = %5
%9 = load i8*, i8** %2
%10 = load i32, i32* %3
%11 = sext i32 %10 to i64
%12 = getelementptr inbounds i8, i8* %9, i64 %11
%13 = load i8, i8* %12
%14 = zext i8 %13 to i32
%15 = and i32 255, %14
%16 = load i32, i32* %3
%17 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0), i32 %15, i32 %16)
br label %18
18: ; preds = %8
%19 = load i32, i32* %3
%20 = add nsw i32 %19, 1
store i32 %20, i32* %3
br label %5
21: ; preds = %5
ret void
}

LLVM IR (-O2):
@.str.1 = [11 x i8] c"+%u*256^%d\00"
define void @print16(i8* nocapture %0) {
%2 = tail call i32 @putchar(i32 48)
%3 = load i8, i8* %0
%4 = zext i8 %3 to i32
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0), i32 %4, i32 0)
%6 = getelementptr inbounds i8, i8* %0, i64 1
%7 = load i8, i8* %6
%8 = zext i8 %7 to i32
%9 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0), i32 %8, i32 1)
%10 = getelementptr inbounds i8, i8* %0, i64 2
%11 = load i8, i8* %10
%12 = zext i8 %11 to i32
%13 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0), i32 %12, i32 2)
%14 = getelementptr inbounds i8, i8* %0, i64 3
%15 = load i8, i8* %14
%16 = zext i8 %15 to i32
%17 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0), i32 %16, i32 3)
%18 = getelementptr inbounds i8, i8* %0, i64 4
%19 = load i8, i8* %18
%20 = zext i8 %19 to i32
%21 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0), i32 %20, i32 4)
%22 = getelementptr inbounds i8, i8* %0, i64 5
%23 = load i8, i8* %22
%24 = zext i8 %23 to i32
%25 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0), i32 %24, i32 5)
%26 = getelementptr inbounds i8, i8* %0, i64 6
%27 = load i8, i8* %26
%28 = zext i8 %27 to i32
%29 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0), i32 %28, i32 6)
%30 = getelementptr inbounds i8, i8* %0, i64 7
%31 = load i8, i8* %30
%32 = zext i8 %31 to i32
%33 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0), i32 %32, i32 7)
%34 = getelementptr inbounds i8, i8* %0, i64 8
%35 = load i8, i8* %34
%36 = zext i8 %35 to i32
%37 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0), i32 %36, i32 8)
%38 = getelementptr inbounds i8, i8* %0, i64 9
%39 = load i8, i8* %38
%40 = zext i8 %39 to i32
%41 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0), i32 %40, i32 9)
%42 = getelementptr inbounds i8, i8* %0, i64 10
%43 = load i8, i8* %42
%44 = zext i8 %43 to i32
%45 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0), i32 %44, i32 10)
%46 = getelementptr inbounds i8, i8* %0, i64 11
%47 = load i8, i8* %46
%48 = zext i8 %47 to i32
%49 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0), i32 %48, i32 11)
%50 = getelementptr inbounds i8, i8* %0, i64 12
%51 = load i8, i8* %50
%52 = zext i8 %51 to i32
%53 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0), i32 %52, i32 12)
%54 = getelementptr inbounds i8, i8* %0, i64 13
%55 = load i8, i8* %54
%56 = zext i8 %55 to i32
%57 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0), i32 %56, i32 13)
%58 = getelementptr inbounds i8, i8* %0, i64 14
%59 = load i8, i8* %58
%60 = zext i8 %59 to i32
%61 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0), i32 %60, i32 14)
%62 = getelementptr inbounds i8, i8* %0, i64 15
%63 = load i8, i8* %62
%64 = zext i8 %63 to i32
%65 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([11 x i8], [11 x i8]* @.str.1, i64 0, i64 0), i32 %64, i32 15)
ret void
}