#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*/ putchar(char);
void printbuf(char *buf, int len) {
  for (int i = 0; i < len; i++)
    putchar((buf[i] >= ' ' && buf[i] <= 0xfe) ? buf[i] : '.');
}


x86 assembly (clang, -O0):
<printbuf>:
push   %rbp
mov    %rsp,%rbp
sub    $0x20,%rsp
mov    %rdi,-0x8(%rbp)
mov    %esi,-0xc(%rbp)
movl   $0x0,-0x10(%rbp)
mov    -0x10(%rbp),%eax
cmp    -0xc(%rbp),%eax
jge    1198 <printbuf+0x88>
mov    -0x8(%rbp),%rax
movslq -0x10(%rbp),%rcx
movsbl (%rax,%rcx,1),%eax
cmp    $0x20,%eax
jl     1172 <printbuf+0x62>
mov    -0x8(%rbp),%rax
movslq -0x10(%rbp),%rcx
movsbl (%rax,%rcx,1),%eax
cmp    $0xfe,%eax
jg     1172 <printbuf+0x62>
mov    -0x8(%rbp),%rax
movslq -0x10(%rbp),%rcx
movsbl (%rax,%rcx,1),%eax
mov    %eax,-0x14(%rbp)
jmp    117f <printbuf+0x6f>
mov    $0x2e,%eax
mov    %eax,-0x14(%rbp)
jmp    117f <printbuf+0x6f>
mov    -0x14(%rbp),%eax
movsbl %al,%edi
call   1030 <putchar@plt>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    1126 <printbuf+0x16>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<printbuf>:
push   %rbp
push   %r15
push   %r14
push   %rbx
push   %rax
test   %esi,%esi
jle    114b <printbuf+0x3b>
mov    %rdi,%r14
mov    %esi,%r15d
xor    %ebx,%ebx
mov    $0x2e,%ebp
nopl   0x0(%rax,%rax,1)
movzbl (%r14,%rbx,1),%eax
cmp    $0x20,%al
cmovl  %ebp,%eax
movsbl %al,%edi
call   1030 <putchar@plt>
add    $0x1,%rbx
cmp    %rbx,%r15
jne    1130 <printbuf+0x20>
add    $0x8,%rsp
pop    %rbx
pop    %r14
pop    %r15
pop    %rbp
ret

LLVM IR (-O0):
define void @printbuf(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
br label %6
6: ; preds = %38, %2
%7 = load i32, i32* %5
%8 = load i32, i32* %4
%9 = icmp slt i32 %7, %8
br i1 %9, label %10, label %41
10: ; preds = %6
%11 = load i8*, i8** %3
%12 = load i32, i32* %5
%13 = sext i32 %12 to i64
%14 = getelementptr inbounds i8, i8* %11, i64 %13
%15 = load i8, i8* %14
%16 = sext i8 %15 to i32
%17 = icmp sge i32 %16, 32
br i1 %17, label %18, label %33
18: ; preds = %10
%19 = load i8*, i8** %3
%20 = load i32, i32* %5
%21 = sext i32 %20 to i64
%22 = getelementptr inbounds i8, i8* %19, i64 %21
%23 = load i8, i8* %22
%24 = sext i8 %23 to i32
%25 = icmp sle i32 %24, 254
br i1 %25, label %26, label %33
26: ; preds = %18
%27 = load i8*, i8** %3
%28 = load i32, i32* %5
%29 = sext i32 %28 to i64
%30 = getelementptr inbounds i8, i8* %27, i64 %29
%31 = load i8, i8* %30
%32 = sext i8 %31 to i32
br label %34
33: ; preds = %18, %10
br label %34
34: ; preds = %33, %26
%35 = phi i32 [ %32, %26 ], [ 46, %33 ]
%36 = trunc i32 %35 to i8
%37 = call i32 @putchar(i8 signext %36)
br label %38
38: ; preds = %34
%39 = load i32, i32* %5
%40 = add nsw i32 %39, 1
store i32 %40, i32* %5
br label %6
41: ; preds = %6
ret void
}

LLVM IR (-O2):
define void @printbuf(i8* nocapture %0, i32 %1) {
%3 = icmp sgt i32 %1, 0
br i1 %3, label %4, label %6
4: ; preds = %2
%5 = zext i32 %1 to i64
br label %7
6: ; preds = %7, %2
ret void
7: ; preds = %4, %7
%8 = phi i64 [ 0, %4 ], [ %14, %7 ]
%9 = getelementptr inbounds i8, i8* %0, i64 %8
%10 = load i8, i8* %9
%11 = icmp sgt i8 %10, 31
%12 = select i1 %11, i8 %10, i8 46
%13 = tail call i32 @putchar(i8 signext %12)
%14 = add nuw nsw i64 %8, 1
%15 = icmp eq i64 %14, %5
br i1 %15, label %6, label %7
}