#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__ strings_equal(char *, char *);
int help_required(char *string) {
  if (strings_equal(string, "help"))
    return (1);
  if (strings_equal(string, "HELP"))
    return (1);
  if (strings_equal(string, "-help"))
    return (1);
  if (strings_equal(string, "-HELP"))
    return (1);
  if (strings_equal(string, "--help"))
    return (1);
  if (strings_equal(string, "--HELP"))
    return (1);
  if (strings_equal(string, "-h"))
    return (1);
  if (strings_equal(string, "-H"))
    return (1);
  if (strings_equal(string, "--h"))
    return (1);
  if (strings_equal(string, "--H"))
    return (1);
  return (0);
}


x86 assembly (clang, -O0):
<help_required>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x10(%rbp)
mov    -0x10(%rbp),%rdi
lea    0xedb(%rip),%rsi
call   1030 <strings_equal@plt>
cmp    $0x0,%rax
je     1142 <help_required+0x32>
movl   $0x1,-0x4(%rbp)
jmp    129f <help_required+0x18f>
mov    -0x10(%rbp),%rdi
lea    0xebc(%rip),%rsi
call   1030 <strings_equal@plt>
cmp    $0x0,%rax
je     1168 <help_required+0x58>
movl   $0x1,-0x4(%rbp)
jmp    129f <help_required+0x18f>
mov    -0x10(%rbp),%rdi
lea    0xe8e(%rip),%rsi
call   1030 <strings_equal@plt>
cmp    $0x0,%rax
je     118e <help_required+0x7e>
movl   $0x1,-0x4(%rbp)
jmp    129f <help_required+0x18f>
mov    -0x10(%rbp),%rdi
lea    0xe6f(%rip),%rsi
call   1030 <strings_equal@plt>
cmp    $0x0,%rax
je     11b4 <help_required+0xa4>
movl   $0x1,-0x4(%rbp)
jmp    129f <help_required+0x18f>
mov    -0x10(%rbp),%rdi
lea    0xe41(%rip),%rsi
call   1030 <strings_equal@plt>
cmp    $0x0,%rax
je     11da <help_required+0xca>
movl   $0x1,-0x4(%rbp)
jmp    129f <help_required+0x18f>
mov    -0x10(%rbp),%rdi
lea    0xe22(%rip),%rsi
call   1030 <strings_equal@plt>
cmp    $0x0,%rax
je     1200 <help_required+0xf0>
movl   $0x1,-0x4(%rbp)
jmp    129f <help_required+0x18f>
mov    -0x10(%rbp),%rdi
lea    0xe04(%rip),%rsi
call   1030 <strings_equal@plt>
cmp    $0x0,%rax
je     1226 <help_required+0x116>
movl   $0x1,-0x4(%rbp)
jmp    129f <help_required+0x18f>
mov    -0x10(%rbp),%rdi
lea    0xde2(%rip),%rsi
call   1030 <strings_equal@plt>
cmp    $0x0,%rax
je     124c <help_required+0x13c>
movl   $0x1,-0x4(%rbp)
jmp    129f <help_required+0x18f>
mov    -0x10(%rbp),%rdi
lea    0xdb7(%rip),%rsi
call   1030 <strings_equal@plt>
cmp    $0x0,%rax
je     1272 <help_required+0x162>
movl   $0x1,-0x4(%rbp)
jmp    129f <help_required+0x18f>
mov    -0x10(%rbp),%rdi
lea    0xd95(%rip),%rsi
call   1030 <strings_equal@plt>
cmp    $0x0,%rax
je     1298 <help_required+0x188>
movl   $0x1,-0x4(%rbp)
jmp    129f <help_required+0x18f>
movl   $0x0,-0x4(%rbp)
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<help_required>:
push   %rbp
push   %rbx
push   %rax
mov    %rdi,%rbx
lea    0xee5(%rip),%rsi
call   1030 <strings_equal@plt>
mov    $0x1,%ebp
test   %rax,%rax
jne    11f0 <help_required+0xe0>
lea    0xed2(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strings_equal@plt>
test   %rax,%rax
jne    11f0 <help_required+0xe0>
lea    0xeb2(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strings_equal@plt>
test   %rax,%rax
jne    11f0 <help_required+0xe0>
lea    0xea1(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strings_equal@plt>
test   %rax,%rax
jne    11f0 <help_required+0xe0>
lea    0xe85(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strings_equal@plt>
test   %rax,%rax
jne    11f0 <help_required+0xe0>
lea    0xe78(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strings_equal@plt>
test   %rax,%rax
jne    11f0 <help_required+0xe0>
lea    0xe6c(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strings_equal@plt>
test   %rax,%rax
jne    11f0 <help_required+0xe0>
lea    0xe5c(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strings_equal@plt>
test   %rax,%rax
jne    11f0 <help_required+0xe0>
lea    0xe43(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strings_equal@plt>
test   %rax,%rax
jne    11f0 <help_required+0xe0>
lea    0xe33(%rip),%rsi
mov    %rbx,%rdi
call   1030 <strings_equal@plt>
xor    %ebp,%ebp
test   %rax,%rax
setne  %bpl
mov    %ebp,%eax
add    $0x8,%rsp
pop    %rbx
pop    %rbp
ret

LLVM IR (-O0):
@.str = [5 x i8] c"help\00"
@.str.1 = [5 x i8] c"HELP\00"
@.str.2 = [6 x i8] c"-help\00"
@.str.3 = [6 x i8] c"-HELP\00"
@.str.4 = [7 x i8] c"--help\00"
@.str.5 = [7 x i8] c"--HELP\00"
@.str.6 = [3 x i8] c"-h\00"
@.str.7 = [3 x i8] c"-H\00"
@.str.8 = [4 x i8] c"--h\00"
@.str.9 = [4 x i8] c"--H\00"
define i32 @help_required(i8* %0) {
%2 = alloca i32
%3 = alloca i8*
store i8* %0, i8** %3
%4 = load i8*, i8** %3
%5 = call i64 @strings_equal(i8* %4, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0))
%6 = icmp ne i64 %5, 0
br i1 %6, label %7, label %8
7: ; preds = %1
store i32 1, i32* %2
br label %54
8: ; preds = %1
%9 = load i8*, i8** %3
%10 = call i64 @strings_equal(i8* %9, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0))
%11 = icmp ne i64 %10, 0
br i1 %11, label %12, label %13
12: ; preds = %8
store i32 1, i32* %2
br label %54
13: ; preds = %8
%14 = load i8*, i8** %3
%15 = call i64 @strings_equal(i8* %14, i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0))
%16 = icmp ne i64 %15, 0
br i1 %16, label %17, label %18
17: ; preds = %13
store i32 1, i32* %2
br label %54
18: ; preds = %13
%19 = load i8*, i8** %3
%20 = call i64 @strings_equal(i8* %19, i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.3, i64 0, i64 0))
%21 = icmp ne i64 %20, 0
br i1 %21, label %22, label %23
22: ; preds = %18
store i32 1, i32* %2
br label %54
23: ; preds = %18
%24 = load i8*, i8** %3
%25 = call i64 @strings_equal(i8* %24, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.4, i64 0, i64 0))
%26 = icmp ne i64 %25, 0
br i1 %26, label %27, label %28
27: ; preds = %23
store i32 1, i32* %2
br label %54
28: ; preds = %23
%29 = load i8*, i8** %3
%30 = call i64 @strings_equal(i8* %29, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.5, i64 0, i64 0))
%31 = icmp ne i64 %30, 0
br i1 %31, label %32, label %33
32: ; preds = %28
store i32 1, i32* %2
br label %54
33: ; preds = %28
%34 = load i8*, i8** %3
%35 = call i64 @strings_equal(i8* %34, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.6, i64 0, i64 0))
%36 = icmp ne i64 %35, 0
br i1 %36, label %37, label %38
37: ; preds = %33
store i32 1, i32* %2
br label %54
38: ; preds = %33
%39 = load i8*, i8** %3
%40 = call i64 @strings_equal(i8* %39, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.7, i64 0, i64 0))
%41 = icmp ne i64 %40, 0
br i1 %41, label %42, label %43
42: ; preds = %38
store i32 1, i32* %2
br label %54
43: ; preds = %38
%44 = load i8*, i8** %3
%45 = call i64 @strings_equal(i8* %44, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.8, i64 0, i64 0))
%46 = icmp ne i64 %45, 0
br i1 %46, label %47, label %48
47: ; preds = %43
store i32 1, i32* %2
br label %54
48: ; preds = %43
%49 = load i8*, i8** %3
%50 = call i64 @strings_equal(i8* %49, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.9, i64 0, i64 0))
%51 = icmp ne i64 %50, 0
br i1 %51, label %52, label %53
52: ; preds = %48
store i32 1, i32* %2
br label %54
53: ; preds = %48
store i32 0, i32* %2
br label %54
54: ; preds = %53, %52, %47, %42, %37, %32, %27, %22, %17, %12, %7
%55 = load i32, i32* %2
ret i32 %55
}

LLVM IR (-O2):
@.str = [5 x i8] c"help\00"
@.str.1 = [5 x i8] c"HELP\00"
@.str.2 = [6 x i8] c"-help\00"
@.str.3 = [6 x i8] c"-HELP\00"
@.str.4 = [7 x i8] c"--help\00"
@.str.5 = [7 x i8] c"--HELP\00"
@.str.6 = [3 x i8] c"-h\00"
@.str.7 = [3 x i8] c"-H\00"
@.str.8 = [4 x i8] c"--h\00"
@.str.9 = [4 x i8] c"--H\00"
define i32 @help_required(i8* %0) {
%2 = tail call i64 @strings_equal(i8* %0, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str, i64 0, i64 0))
%3 = icmp eq i64 %2, 0
br i1 %3, label %4, label %32
4: ; preds = %1
%5 = tail call i64 @strings_equal(i8* %0, i8* getelementptr inbounds ([5 x i8], [5 x i8]* @.str.1, i64 0, i64 0))
%6 = icmp eq i64 %5, 0
br i1 %6, label %7, label %32
7: ; preds = %4
%8 = tail call i64 @strings_equal(i8* %0, i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.2, i64 0, i64 0))
%9 = icmp eq i64 %8, 0
br i1 %9, label %10, label %32
10: ; preds = %7
%11 = tail call i64 @strings_equal(i8* %0, i8* getelementptr inbounds ([6 x i8], [6 x i8]* @.str.3, i64 0, i64 0))
%12 = icmp eq i64 %11, 0
br i1 %12, label %13, label %32
13: ; preds = %10
%14 = tail call i64 @strings_equal(i8* %0, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.4, i64 0, i64 0))
%15 = icmp eq i64 %14, 0
br i1 %15, label %16, label %32
16: ; preds = %13
%17 = tail call i64 @strings_equal(i8* %0, i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.5, i64 0, i64 0))
%18 = icmp eq i64 %17, 0
br i1 %18, label %19, label %32
19: ; preds = %16
%20 = tail call i64 @strings_equal(i8* %0, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.6, i64 0, i64 0))
%21 = icmp eq i64 %20, 0
br i1 %21, label %22, label %32
22: ; preds = %19
%23 = tail call i64 @strings_equal(i8* %0, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.7, i64 0, i64 0))
%24 = icmp eq i64 %23, 0
br i1 %24, label %25, label %32
25: ; preds = %22
%26 = tail call i64 @strings_equal(i8* %0, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.8, i64 0, i64 0))
%27 = icmp eq i64 %26, 0
br i1 %27, label %28, label %32
28: ; preds = %25
%29 = tail call i64 @strings_equal(i8* %0, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.9, i64 0, i64 0))
%30 = icmp ne i64 %29, 0
%31 = zext i1 %30 to i32
br label %32
32: ; preds = %28, %25, %22, %19, %16, %13, %10, %7, %4, %1
%33 = phi i32 [ 1, %1 ], [ 1, %4 ], [ 1, %7 ], [ 1, %10 ], [ 1, %13 ], [ 1, %16 ], [ 1, %19 ], [ 1, %22 ], [ 1, %25 ], [ %31, %28 ]
ret i32 %33
}