#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*/ *strchr(char *, char);
scalar_t__ strcmp(char *, char *);
scalar_t__ strlen(char *);
int bad_nsname(char *ns) {
  return strlen(ns) == 0 || strcmp("..", ns) == 0 || strcmp(".", ns) == 0 ||
         strchr(ns, '/') != NULL;
}


x86 assembly (clang, -O0):
<bad_nsname>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    -0x8(%rbp),%rdi
call   1030 <strlen@plt>
mov    %rax,%rcx
mov    $0x1,%al
cmp    $0x0,%rcx
mov    %al,-0x9(%rbp)
je     11b3 <bad_nsname+0x83>
mov    -0x8(%rbp),%rsi
lea    0xe9e(%rip),%rdi
call   1050 <strcmp@plt>
mov    %rax,%rcx
mov    $0x1,%al
cmp    $0x0,%rcx
mov    %al,-0x9(%rbp)
je     11b3 <bad_nsname+0x83>
mov    -0x8(%rbp),%rsi
lea    0xe7d(%rip),%rdi
call   1050 <strcmp@plt>
mov    %rax,%rcx
mov    $0x1,%al
cmp    $0x0,%rcx
mov    %al,-0x9(%rbp)
je     11b3 <bad_nsname+0x83>
mov    -0x8(%rbp),%rdi
mov    $0x2f,%esi
call   1040 <strchr@plt>
cmp    $0x0,%rax
setne  %al
mov    %al,-0x9(%rbp)
mov    -0x9(%rbp),%al
and    $0x1,%al
movzbl %al,%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<bad_nsname>:
push   %rbp
push   %rbx
push   %rax
mov    $0x1,%ebp
cmpb   $0x0,(%rdi)
je     116e <bad_nsname+0x4e>
mov    %rdi,%rbx
lea    0xec9(%rip),%rdi
mov    %rbx,%rsi
call   1040 <strcmp@plt>
test   %rax,%rax
je     116e <bad_nsname+0x4e>
lea    0xeb6(%rip),%rdi
mov    %rbx,%rsi
call   1040 <strcmp@plt>
test   %rax,%rax
je     116e <bad_nsname+0x4e>
mov    %rbx,%rdi
mov    $0x2f,%esi
call   1030 <strchr@plt>
xor    %ebp,%ebp
test   %rax,%rax
setne  %bpl
mov    %ebp,%eax
add    $0x8,%rsp
pop    %rbx
pop    %rbp
ret

LLVM IR (-O0):
@.str = [3 x i8] c"..\00"
@.str.1 = [2 x i8] c".\00"
define i32 @bad_nsname(i8* %0) {
%2 = alloca i8*
store i8* %0, i8** %2
%3 = load i8*, i8** %2
%4 = call i64 @strlen(i8* %3)
%5 = icmp eq i64 %4, 0
br i1 %5, label %18, label %6
6: ; preds = %1
%7 = load i8*, i8** %2
%8 = call i64 @strcmp(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8* %7)
%9 = icmp eq i64 %8, 0
br i1 %9, label %18, label %10
10: ; preds = %6
%11 = load i8*, i8** %2
%12 = call i64 @strcmp(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0), i8* %11)
%13 = icmp eq i64 %12, 0
br i1 %13, label %18, label %14
14: ; preds = %10
%15 = load i8*, i8** %2
%16 = call i32* @strchr(i8* %15, i8 signext 47)
%17 = icmp ne i32* %16, null
br label %18
18: ; preds = %14, %10, %6, %1
%19 = phi i1 [ true, %10 ], [ true, %6 ], [ true, %1 ], [ %17, %14 ]
%20 = zext i1 %19 to i32
ret i32 %20
}

LLVM IR (-O2):
@.str = [3 x i8] c"..\00"
@.str.1 = [2 x i8] c".\00"
define i32 @bad_nsname(i8* %0) {
%2 = load i8, i8* %0
%3 = icmp eq i8 %2, 0
br i1 %3, label %14, label %4
4: ; preds = %1
%5 = tail call i64 @strcmp(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str, i64 0, i64 0), i8* %0)
%6 = icmp eq i64 %5, 0
br i1 %6, label %14, label %7
7: ; preds = %4
%8 = tail call i64 @strcmp(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0), i8* %0)
%9 = icmp eq i64 %8, 0
br i1 %9, label %14, label %10
10: ; preds = %7
%11 = tail call i32* @strchr(i8* %0, i8 signext 47)
%12 = icmp ne i32* %11, null
%13 = zext i1 %12 to i32
br label %14
14: ; preds = %10, %7, %4, %1
%15 = phi i32 [ 1, %7 ], [ 1, %4 ], [ 1, %1 ], [ %13, %10 ]
ret i32 %15
}