#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*/ fprintf(int /*<<< orphan*/, char *, ...);
int /*<<< orphan*/ stderr;
void help(char *argv0) {
  fprintf(stderr, "usage: %s [options] file [target_checksum]\n", argv0);
  fprintf(
      stderr,
      "\n"
      "options:\n"
      "  -o pos    byte.bit position of mutable input bits\n"
      "  -O pos    position offset from the end of the input\n"
      "  -b l:r:s  specify bits at positions l..r with step s\n"
      "  -h        show this help\n"
      "  -v        verbose mode\n"
      "\n"
      "CRC parameters (default: CRC-32):\n"
      "  -p poly   generator polynomial    -w size   register size in bits\n"
      "  -i init   initial register value  -x xor    final register XOR mask\n"
      "  -r        reverse input bytes     -R        reverse final register\n");
}


x86 assembly (clang, -O0):
<help>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    0x2ebd(%rip),%rax
mov    (%rax),%edi
mov    -0x8(%rbp),%rdx
lea    0xed0(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2ea2(%rip),%rax
mov    (%rax),%edi
lea    0xee5(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<help>:
push   %rbx
mov    %rdi,%rdx
mov    0x2ec5(%rip),%rbx
mov    (%rbx),%edi
lea    0xedc(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xef8(%rip),%rsi
xor    %eax,%eax
pop    %rbx
jmp    1030 <fprintf@plt>

LLVM IR (-O0):
@stderr = global i32 0
@.str = [44 x i8] c"usage: %s [options] file [target_checksum]\0A\00"
@.str.1 = [466 x i8] c"\0Aoptions:\0A -o pos byte.bit position of mutable input bits\0A -O pos position offset from the end of the input\0A -b l:r:s specify bits at positions l..r with step s\0A -h show this help\0A -v verbose mode\0A\0ACRC parameters (default: CRC-32):\0A -p poly generator polynomial -w size register size in bits\0A -i init initial register value -x xor final register XOR mask\0A -r reverse input bytes -R reverse final register\0A\00"
define void @help(i8* %0) {
%2 = alloca i8*
store i8* %0, i8** %2
%3 = load i32, i32* @stderr
%4 = load i8*, i8** %2
%5 = call i32 (i32, i8*, ...) @fprintf(i32 %3, i8* getelementptr inbounds ([44 x i8], [44 x i8]* @.str, i64 0, i64 0), i8* %4)
%6 = load i32, i32* @stderr
%7 = call i32 (i32, i8*, ...) @fprintf(i32 %6, i8* getelementptr inbounds ([466 x i8], [466 x i8]* @.str.1, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@stderr = global i32 0
@.str = [44 x i8] c"usage: %s [options] file [target_checksum]\0A\00"
@.str.1 = [466 x i8] c"\0Aoptions:\0A -o pos byte.bit position of mutable input bits\0A -O pos position offset from the end of the input\0A -b l:r:s specify bits at positions l..r with step s\0A -h show this help\0A -v verbose mode\0A\0ACRC parameters (default: CRC-32):\0A -p poly generator polynomial -w size register size in bits\0A -i init initial register value -x xor final register XOR mask\0A -r reverse input bytes -R reverse final register\0A\00"
define void @help(i8* %0) {
%2 = load i32, i32* @stderr
%3 = tail call i32 (i32, i8*, ...) @fprintf(i32 %2, i8* getelementptr inbounds ([44 x i8], [44 x i8]* @.str, i64 0, i64 0), i8* %0)
%4 = load i32, i32* @stderr
%5 = tail call i32 (i32, i8*, ...) @fprintf(i32 %4, i8* getelementptr inbounds ([466 x i8], [466 x i8]* @.str.1, i64 0, i64 0))
ret void
}