#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 uint8_t;

/* Variables and functions */
int /*<<< orphan*/ printf(char *, ...);
void mdprint(const uint8_t *md, const char *f, size_t len) {
  size_t i;
  for (i = 0; i < len; i++)
    printf("%02x", md[i]);
  printf("  %s\n", f);
}


x86 assembly (clang, -O0):
<mdprint>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
mov    %rdx,-0x18(%rbp)
movq   $0x0,-0x20(%rbp)
mov    -0x20(%rbp),%rax
cmp    -0x18(%rbp),%rax
jae    1164 <mdprint+0x54>
mov    -0x8(%rbp),%rax
mov    -0x20(%rbp),%rcx
mov    (%rax,%rcx,4),%esi
lea    0xeb4(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x20(%rbp),%rax
add    $0x1,%rax
mov    %rax,-0x20(%rbp)
jmp    112c <mdprint+0x1c>
mov    -0x10(%rbp),%rsi
lea    0xe96(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<mdprint>:
push   %r15
push   %r14
push   %r13
push   %r12
push   %rbx
mov    %rsi,%r14
test   %rdx,%rdx
je     1147 <mdprint+0x37>
mov    %rdx,%r13
mov    %rdi,%r15
lea    0xed2(%rip),%r12
xor    %ebx,%ebx
mov    (%r15,%rbx,4),%esi
mov    %r12,%rdi
xor    %eax,%eax
call   1030 <printf@plt>
add    $0x1,%rbx
cmp    %rbx,%r13
jne    1130 <mdprint+0x20>
lea    0xeb7(%rip),%rdi
mov    %r14,%rsi
xor    %eax,%eax
pop    %rbx
pop    %r12
pop    %r13
pop    %r14
pop    %r15
jmp    1030 <printf@plt>

LLVM IR (-O0):
@.str = [5 x i8] c"%02x\00"
@.str.1 = [6 x i8] c" %s\0A\00"
define void @mdprint(i32* %0, i8* %1, i64 %2) {
%4 = alloca i32*
%5 = alloca i8*
%6 = alloca i64
%7 = alloca i64
store i32* %0, i32** %4
store i8* %1, i8** %5
store i64 %2, i64* %6
store i64 0, i64* %7
br label %8
8: ; preds = %18, %3
%9 = load i64, i64* %7
%10 = load i64, i64* %6
%11 = icmp ult i64 %9, %10
br i1 %11, label %12, label %21
12: ; preds = %8
%13 = load i32*, i32** %4
%14 = load i64, i64* %7
%15 = getelementptr inbounds i32, i32* %13, i64 %14
%16 = load i32, i32* %15
%17 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0), i32 %16)
br label %18
18: ; preds = %12
%19 = load i64, i64* %7
%20 = add i64 %19, 1
store i64 %20, i64* %7
br label %8
21: ; preds = %8
%22 = load i8*, i8** %5
%23 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0), i8* %22)
ret void
}

LLVM IR (-O2):
@.str = [5 x i8] c"%02x\00"
@.str.1 = [6 x i8] c" %s\0A\00"
define void @mdprint(i32* nocapture %0, i8* %1, i64 %2) {
%4 = icmp eq i64 %2, 0
br i1 %4, label %12, label %5
5: ; preds = %3, %5
%6 = phi i64 [ %10, %5 ], [ 0, %3 ]
%7 = getelementptr inbounds i32, i32* %0, i64 %6
%8 = load i32, i32* %7
%9 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0), i32 %8)
%10 = add nuw i64 %6, 1
%11 = icmp eq i64 %10, %2
br i1 %11, label %12, label %5
12: ; preds = %5, %3
%13 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0), i8* %1)
ret void
}