#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*/ fprintf(int /*<<< orphan*/, char *, ...);
int /*<<< orphan*/ stdout;
void print_buffer(const char *prefix, uint8_t *buffer, int length) {
  int i;
  fprintf(stdout, "%s", prefix);
  for (i = 0; i < length; i++) {
    fprintf(stdout, "%02x.", buffer[i]);
  }
  fprintf(stdout, "\n");
}


x86 assembly (clang, -O0):
<print_buffer>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %rsi,-0x10(%rbp)
mov    %edx,-0x14(%rbp)
mov    0x2eb6(%rip),%rax
mov    (%rax),%edi
mov    -0x8(%rbp),%rdx
lea    0xec9(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
movl   $0x0,-0x18(%rbp)
mov    -0x18(%rbp),%eax
cmp    -0x14(%rbp),%eax
jge    1181 <print_buffer+0x71>
mov    0x2e88(%rip),%rax
mov    (%rax),%edi
mov    -0x10(%rbp),%rax
movslq -0x18(%rbp),%rcx
mov    (%rax,%rcx,4),%edx
lea    0xe97(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    -0x18(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x18(%rbp)
jmp    1145 <print_buffer+0x35>
mov    0x2e58(%rip),%rax
mov    (%rax),%edi
lea    0xe78(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<print_buffer>:
push   %rbp
push   %r15
push   %r14
push   %r12
push   %rbx
mov    %edx,%r14d
mov    %rsi,%r12
mov    %rdi,%rdx
mov    0x2eb8(%rip),%r15
mov    (%r15),%edi
lea    0xece(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
test   %r14d,%r14d
jle    116a <print_buffer+0x5a>
mov    %r14d,%ebp
lea    0xebb(%rip),%r14
xor    %ebx,%ebx
nopw   0x0(%rax,%rax,1)
mov    (%r15),%edi
mov    (%r12,%rbx,4),%edx
mov    %r14,%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
add    $0x1,%rbx
cmp    %rbx,%rbp
jne    1150 <print_buffer+0x40>
mov    (%r15),%edi
lea    0xe95(%rip),%rsi
xor    %eax,%eax
pop    %rbx
pop    %r12
pop    %r14
pop    %r15
pop    %rbp
jmp    1030 <fprintf@plt>

LLVM IR (-O0):
@stdout = global i32 0
@.str = [3 x i8] c"%s\00"
@.str.1 = [6 x i8] c"%02x.\00"
@.str.2 = [2 x i8] c"\0A\00"
define void @print_buffer(i8* %0, i32* %1, i32 %2) {
%4 = alloca i8*
%5 = alloca i32*
%6 = alloca i32
%7 = alloca i32
store i8* %0, i8** %4
store i32* %1, i32** %5
store i32 %2, i32* %6
%8 = load i32, i32* @stdout
%9 = load i8*, i8** %4
%10 = call i32 (i32, i8*, ...) @fprintf(i32 %8, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8* %9)
store i32 0, i32* %7
br label %11
11: ; preds = %23, %3
%12 = load i32, i32* %7
%13 = load i32, i32* %6
%14 = icmp slt i32 %12, %13
br i1 %14, label %15, label %26
15: ; preds = %11
%16 = load i32, i32* @stdout
%17 = load i32*, i32** %5
%18 = load i32, i32* %7
%19 = sext i32 %18 to i64
%20 = getelementptr inbounds i32, i32* %17, i64 %19
%21 = load i32, i32* %20
%22 = call i32 (i32, i8*, ...) @fprintf(i32 %16, i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0), i32 %21)
br label %23
23: ; preds = %15
%24 = load i32, i32* %7
%25 = add nsw i32 %24, 1
store i32 %25, i32* %7
br label %11
26: ; preds = %11
%27 = load i32, i32* @stdout
%28 = call i32 (i32, i8*, ...) @fprintf(i32 %27, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@stdout = global i32 0
@.str = [3 x i8] c"%s\00"
@.str.1 = [6 x i8] c"%02x.\00"
@.str.2 = [2 x i8] c"\0A\00"
define void @print_buffer(i8* %0, i32* nocapture %1, i32 %2) {
%4 = load i32, i32* @stdout
%5 = tail call i32 (i32, i8*, ...) @fprintf(i32 %4, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8* %0)
%6 = icmp sgt i32 %2, 0
br i1 %6, label %7, label %17
7: ; preds = %3
%8 = zext i32 %2 to i64
br label %9
9: ; preds = %7, %9
%10 = phi i64 [ 0, %7 ], [ %15, %9 ]
%11 = load i32, i32* @stdout
%12 = getelementptr inbounds i32, i32* %1, i64 %10
%13 = load i32, i32* %12
%14 = tail call i32 (i32, i8*, ...) @fprintf(i32 %11, i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.1, i64 0, i64 0), i32 %13)
%15 = add nuw nsw i64 %10, 1
%16 = icmp eq i64 %15, %8
br i1 %16, label %17, label %9
17: ; preds = %9, %3
%18 = load i32, i32* @stdout
%19 = tail call i32 (i32, i8*, ...) @fprintf(i32 %18, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0))
ret void
}