#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*/ exit(int /*<<< orphan*/);
int /*<<< orphan*/ printf(char *, ...);
void help(char *prog_name) {
  printf("%s Version %s\n", prog_name, "0.3");
  printf("Usage: %s <switches>\n\n", prog_name);
  printf("Switches:\n"
         "-h,     --help            help\n"
         "-aon,   --aon              set LCD autodim on\n"
         "-aoff,  --aoff             set LCD autodim off\n"
         "-d,     --dim <value>      set LCD (value 0-255)\n"
         "-c,     --contrast <value> set LCD contrast (value 0-63)\n"
         "-on,    --on               set LCD on\n"
         "-off,   --off              set LCD off\n"
         "-r,     --reverse          set LCD in reverse mode\n"
         "-n,     --normal           set LCD in normal mode\n");
  exit(0);
}


x86 assembly (clang, -O0):
<help>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    -0x8(%rbp),%rsi
lea    0xec9(%rip),%rdi
lea    0xed1(%rip),%rdx
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rsi
lea    0xec3(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xecc(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
xor    %edi,%edi
call   1040 <exit@plt>

x86 assembly (clang, -O2):
<help>:
push   %rbx
mov    %rdi,%rbx
lea    0xec5(%rip),%rdi
lea    0xecd(%rip),%rdx
mov    %rbx,%rsi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xec0(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1040 <printf@plt>
lea    0xec6(%rip),%rdi
call   1030 <puts@plt>
xor    %edi,%edi
call   1050 <exit@plt>

LLVM IR (-O0):
@.str = [15 x i8] c"%s Version %s\0A\00"
@.str.1 = [4 x i8] c"0.3\00"
@.str.2 = [23 x i8] c"Usage: %s <switches>\0A\0A\00"
@.str.3 = [419 x i8] c"Switches:\0A-h, --help help\0A-aon, --aon set LCD autodim on\0A-aoff, --aoff set LCD autodim off\0A-d, --dim <value> set LCD (value 0-255)\0A-c, --contrast <value> set LCD contrast (value 0-63)\0A-on, --on set LCD on\0A-off, --off set LCD off\0A-r, --reverse set LCD in reverse mode\0A-n, --normal set LCD in normal mode\0A\00"
define void @help(i8* %0) {
%2 = alloca i8*
store i8* %0, i8** %2
%3 = load i8*, i8** %2
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0), i8* %3, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0))
%5 = load i8*, i8** %2
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.2, i64 0, i64 0), i8* %5)
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([419 x i8], [419 x i8]* @.str.3, i64 0, i64 0))
%8 = call i32 @exit(i32 0)
unreachable
}

LLVM IR (-O2):
@.str = [15 x i8] c"%s Version %s\0A\00"
@.str.1 = [4 x i8] c"0.3\00"
@.str.2 = [23 x i8] c"Usage: %s <switches>\0A\0A\00"
@str = [418 x i8] c"Switches:\0A-h, --help help\0A-aon, --aon set LCD autodim on\0A-aoff, --aoff set LCD autodim off\0A-d, --dim <value> set LCD (value 0-255)\0A-c, --contrast <value> set LCD contrast (value 0-63)\0A-on, --on set LCD on\0A-off, --off set LCD off\0A-r, --reverse set LCD in reverse mode\0A-n, --normal set LCD in normal mode\00"
define void @help(i8* %0) {
%2 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([15 x i8], [15 x i8]* @.str, i64 0, i64 0), i8* %0, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str.1, i64 0, i64 0))
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([23 x i8], [23 x i8]* @.str.2, i64 0, i64 0), i8* %0)
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([418 x i8], [418 x i8]* @str, i64 0, i64 0))
%5 = tail call i32 @exit(i32 0)
unreachable
}