#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__ strcmp(char const *, char *);
int checkpath(const char *path) {
  int ret = 0;
  if (strcmp(path, "") == 0) {
    ret = 1;
  } else if (strcmp(path, ".") == 0) {
    ret = 1;
  } else if (strcmp(path, "..") == 0) {
    ret = 1;
  }
  return ret;
}


x86 assembly (clang, -O0):
<checkpath>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
movl   $0x0,-0xc(%rbp)
mov    -0x8(%rbp),%rdi
lea    0xed4(%rip),%rsi
call   1030 <strcmp@plt>
cmp    $0x0,%rax
jne    1149 <checkpath+0x39>
movl   $0x1,-0xc(%rbp)
jmp    119a <checkpath+0x8a>
mov    -0x8(%rbp),%rdi
lea    0xead(%rip),%rsi
call   1030 <strcmp@plt>
cmp    $0x0,%rax
jne    116f <checkpath+0x5f>
movl   $0x1,-0xc(%rbp)
jmp    1195 <checkpath+0x85>
mov    -0x8(%rbp),%rdi
lea    0xe86(%rip),%rsi
call   1030 <strcmp@plt>
cmp    $0x0,%rax
jne    1190 <checkpath+0x80>
movl   $0x1,-0xc(%rbp)
jmp    1195 <checkpath+0x85>
jmp    119a <checkpath+0x8a>
mov    -0xc(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<checkpath>:
push   %rbp
push   %rbx
push   %rax
mov    %rdi,%rbx
lea    0xee5(%rip),%rsi
call   1030 <strcmp@plt>
mov    $0x1,%ebp
test   %rax,%rax
je     1158 <checkpath+0x48>
lea    0xece(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strcmp@plt>
test   %rax,%rax
je     1158 <checkpath+0x48>
lea    0xeb9(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strcmp@plt>
xor    %ebp,%ebp
test   %rax,%rax
sete   %bpl
mov    %ebp,%eax
add    $0x8,%rsp
pop    %rbx
pop    %rbp
ret

LLVM IR (-O0):
@.str = [1 x i8] zeroinitializer
@.str.1 = [2 x i8] c".\00"
@.str.2 = [3 x i8] c"..\00"
define i32 @checkpath(i8* %0) {
%2 = alloca i8*
%3 = alloca i32
store i8* %0, i8** %2
store i32 0, i32* %3
%4 = load i8*, i8** %2
%5 = call i64 @strcmp(i8* %4, i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i64 0, i64 0))
%6 = icmp eq i64 %5, 0
br i1 %6, label %7, label %8
7: ; preds = %1
store i32 1, i32* %3
br label %20
8: ; preds = %1
%9 = load i8*, i8** %2
%10 = call i64 @strcmp(i8* %9, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.1, i64 0, i64 0))
%11 = icmp eq i64 %10, 0
br i1 %11, label %12, label %13
12: ; preds = %8
store i32 1, i32* %3
br label %19
13: ; preds = %8
%14 = load i8*, i8** %2
%15 = call i64 @strcmp(i8* %14, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.2, i64 0, i64 0))
%16 = icmp eq i64 %15, 0
br i1 %16, label %17, label %18
17: ; preds = %13
store i32 1, i32* %3
br label %18
18: ; preds = %17, %13
br label %19
19: ; preds = %18, %12
br label %20
20: ; preds = %19, %7
%21 = load i32, i32* %3
ret i32 %21
}

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