#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__ filter_file(char const *, char *);
char filter_dirfiles(const char *fn) {
  return filter_file(fn, ".") || filter_file(fn, "..") ||
         filter_file(fn, ".DS_Store");
}


x86 assembly (clang, -O0):
<filter_dirfiles>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    -0x8(%rbp),%rdi
lea    0xeda(%rip),%rsi
call   1030 <filter_file@plt>
mov    %rax,%rcx
mov    $0x1,%al
cmp    $0x0,%rcx
mov    %al,-0x9(%rbp)
jne    117a <filter_dirfiles+0x6a>
mov    -0x8(%rbp),%rdi
lea    0xeb7(%rip),%rsi
call   1030 <filter_file@plt>
mov    %rax,%rcx
mov    $0x1,%al
cmp    $0x0,%rcx
mov    %al,-0x9(%rbp)
jne    117a <filter_dirfiles+0x6a>
mov    -0x8(%rbp),%rdi
lea    0xe98(%rip),%rsi
call   1030 <filter_file@plt>
cmp    $0x0,%rax
setne  %al
mov    %al,-0x9(%rbp)
mov    -0x9(%rbp),%al
and    $0x1,%al
movzbl %al,%eax
movsbl %al,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<filter_dirfiles>:
push   %rbp
push   %rbx
push   %rax
mov    %rdi,%rbx
lea    0xee4(%rip),%rsi
call   1030 <filter_file@plt>
mov    $0x1,%bpl
test   %rax,%rax
jne    1154 <filter_dirfiles+0x44>
lea    0xecf(%rip),%rsi
mov    %rbx,%rdi
call   1030 <filter_file@plt>
test   %rax,%rax
jne    1154 <filter_dirfiles+0x44>
lea    0xebe(%rip),%rsi
mov    %rbx,%rdi
call   1030 <filter_file@plt>
test   %rax,%rax
setne  %bpl
mov    %ebp,%eax
add    $0x8,%rsp
pop    %rbx
pop    %rbp
ret

LLVM IR (-O0):
@.str = [2 x i8] c".\00"
@.str.1 = [3 x i8] c"..\00"
@.str.2 = [10 x i8] c".DS_Store\00"
define signext i8 @filter_dirfiles(i8* %0) {
%2 = alloca i8*
store i8* %0, i8** %2
%3 = load i8*, i8** %2
%4 = call i64 @filter_file(i8* %3, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
%5 = icmp ne i64 %4, 0
br i1 %5, label %14, label %6
6: ; preds = %1
%7 = load i8*, i8** %2
%8 = call i64 @filter_file(i8* %7, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0))
%9 = icmp ne i64 %8, 0
br i1 %9, label %14, label %10
10: ; preds = %6
%11 = load i8*, i8** %2
%12 = call i64 @filter_file(i8* %11, i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.2, i64 0, i64 0))
%13 = icmp ne i64 %12, 0
br label %14
14: ; preds = %10, %6, %1
%15 = phi i1 [ true, %6 ], [ true, %1 ], [ %13, %10 ]
%16 = zext i1 %15 to i32
%17 = trunc i32 %16 to i8
ret i8 %17
}

LLVM IR (-O2):
@.str = [2 x i8] c".\00"
@.str.1 = [3 x i8] c"..\00"
@.str.2 = [10 x i8] c".DS_Store\00"
define signext i8 @filter_dirfiles(i8* %0) {
%2 = tail call i64 @filter_file(i8* %0, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str, i64 0, i64 0))
%3 = icmp eq i64 %2, 0
br i1 %3, label %4, label %11
4: ; preds = %1
%5 = tail call i64 @filter_file(i8* %0, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0))
%6 = icmp eq i64 %5, 0
br i1 %6, label %7, label %11
7: ; preds = %4
%8 = tail call i64 @filter_file(i8* %0, i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.2, i64 0, i64 0))
%9 = icmp ne i64 %8, 0
%10 = zext i1 %9 to i8
br label %11
11: ; preds = %7, %4, %1
%12 = phi i8 [ 1, %4 ], [ 1, %1 ], [ %10, %7 ]
ret i8 %12
}