#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;
typedef size_t uint32_t;

/* Variables and functions */
int /*<<< orphan*/ printf(char *, ...);
void print(uint8_t *msg, uint32_t len) {
  printf("-----------------\n");
  uint32_t i = 0;
  for (; i < len; ++i)
    printf("%2X ", msg[i]);
  printf("\n");
}


x86 assembly (clang, -O0):
<print>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
lea    0xed9(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
movq   $0x0,-0x18(%rbp)
mov    -0x18(%rbp),%rax
cmp    -0x10(%rbp),%rax
jae    116e <print+0x5e>
mov    -0x8(%rbp),%rax
mov    -0x18(%rbp),%rcx
mov    (%rax,%rcx,4),%esi
lea    0xebd(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x18(%rbp),%rax
add    $0x1,%rax
mov    %rax,-0x18(%rbp)
jmp    1136 <print+0x26>
lea    0xe9c(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<print>:
push   %r15
push   %r14
push   %r12
push   %rbx
push   %rax
mov    %rsi,%r12
mov    %rdi,%r14
lea    0xec0(%rip),%rdi
call   1040 <puts@plt>
test   %r12,%r12
je     1177 <print+0x47>
lea    0xeaa(%rip),%r15
xor    %ebx,%ebx
nopl   0x0(%rax,%rax,1)
mov    (%r14,%rbx,4),%esi
mov    %r15,%rdi
xor    %eax,%eax
call   1050 <printf@plt>
add    $0x1,%rbx
cmp    %rbx,%r12
jne    1160 <print+0x30>
mov    $0xa,%edi
add    $0x8,%rsp
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
jmp    1030 <putchar@plt>

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

LLVM IR (-O2):
@.str.1 = [5 x i8] c"%2X \00"
@str = [18 x i8] c"-----------------\00"
define void @print(i32* nocapture %0, i64 %1) {
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([18 x i8], [18 x i8]* @str, i64 0, i64 0))
%4 = icmp eq i64 %1, 0
br i1 %4, label %12, label %5
5: ; preds = %2, %5
%6 = phi i64 [ %10, %5 ], [ 0, %2 ]
%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.1, i64 0, i64 0), i32 %8)
%10 = add nuw i64 %6, 1
%11 = icmp eq i64 %10, %1
br i1 %11, label %12, label %5
12: ; preds = %5, %2
%13 = tail call i32 @putchar(i32 10)
ret void
}