#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 */
scalar_t__ isgraph(char);
int /*<<< orphan*/ printf(char *, ...);
void print_char(char *str, int len) {
  for (int i = 0; i < len; i++) {
    printf("%c", isgraph(str[i]) ? str[i] : '.');
  }
  printf("\n");
}


x86 assembly (clang, -O0):
<print_char>:
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    119d <print_char+0x7d>
mov    -0x8(%rbp),%rax
movslq -0x10(%rbp),%rcx
movsbl (%rax,%rcx,1),%edi
call   1040 <isgraph@plt>
cmp    $0x0,%rax
je     1171 <print_char+0x51>
mov    -0x8(%rbp),%rax
movslq -0x10(%rbp),%rcx
movsbl (%rax,%rcx,1),%eax
mov    %eax,-0x14(%rbp)
jmp    117e <print_char+0x5e>
mov    $0x2e,%eax
mov    %eax,-0x14(%rbp)
jmp    117e <print_char+0x5e>
mov    -0x14(%rbp),%esi
lea    0xe78(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x10(%rbp),%eax
add    $0x1,%eax
mov    %eax,-0x10(%rbp)
jmp    1136 <print_char+0x16>
lea    0xe5f(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x20,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<print_char>:
push   %r15
push   %r14
push   %rbx
test   %esi,%esi
jle    1169 <print_char+0x49>
mov    %rdi,%r15
mov    %esi,%r14d
xor    %ebx,%ebx
jmp    1153 <print_char+0x33>
cs nopw 0x0(%rax,%rax,1)
nopl   (%rax)
movsbl (%r15,%rbx,1),%edi
call   1030 <putchar@plt>
add    $0x1,%rbx
cmp    %rbx,%r14
je     1169 <print_char+0x49>
movsbl (%r15,%rbx,1),%edi
call   1040 <isgraph@plt>
test   %rax,%rax
jne    1140 <print_char+0x20>
mov    $0x2e,%edi
jmp    1145 <print_char+0x25>
mov    $0xa,%edi
pop    %rbx
pop    %r14
pop    %r15
jmp    1030 <putchar@plt>

LLVM IR (-O0):
@.str = [3 x i8] c"%c\00"
@.str.1 = [2 x i8] c"\0A\00"
define void @print_char(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 = %29, %2
%7 = load i32, i32* %5
%8 = load i32, i32* %4
%9 = icmp slt i32 %7, %8
br i1 %9, label %10, label %32
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 = call i64 @isgraph(i8 signext %15)
%17 = icmp ne i64 %16, 0
br i1 %17, label %18, label %25
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
br label %26
25: ; preds = %10
br label %26
26: ; preds = %25, %18
%27 = phi i32 [ %24, %18 ], [ 46, %25 ]
%28 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i32 %27)
br label %29
29: ; preds = %26
%30 = load i32, i32* %5
%31 = add nsw i32 %30, 1
store i32 %31, i32* %5
br label %6
32: ; preds = %6
%33 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
define void @print_char(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 %8
6: ; preds = %17, %2
%7 = tail call i32 @putchar(i32 10)
ret void
8: ; preds = %4, %17
%9 = phi i64 [ 0, %4 ], [ %20, %17 ]
%10 = getelementptr inbounds i8, i8* %0, i64 %9
%11 = load i8, i8* %10
%12 = tail call i64 @isgraph(i8 signext %11)
%13 = icmp eq i64 %12, 0
br i1 %13, label %17, label %14
14: ; preds = %8
%15 = load i8, i8* %10
%16 = sext i8 %15 to i32
br label %17
17: ; preds = %8, %14
%18 = phi i32 [ %16, %14 ], [ 46, %8 ]
%19 = tail call i32 @putchar(i32 %18)
%20 = add nuw nsw i64 %9, 1
%21 = icmp eq i64 %20, %5
br i1 %21, label %6, label %8
}