#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 usage(void) {
  fprintf(stderr,
          "Htun "
          "0.9.6"
          "\n"
          "Usage: htund [OPTION]...\n"
          "Options:\n"
          "   -c cfgfile   Use cfgfile as the config file.\n"
          "   -f           Run htund in the foreground.\n"
          "   -v           Print the htund version information and exit.\n"
          "   -h           Print usage information and exit.\n");
  fprintf(stderr, "   -t tunfile   Use tunfile as the tun device file.\n"
                  "   -l logfile   Use logfile as the log output file.\n"
                  "                 Give - for stdout; this implies -f.\n"
                  "   -r           Do not alter default route.\n"
                  "   -p port      Set server port to given value\n"
                  "   -o           cOnfigtest only, check config syntax\n");
  return;
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
mov    0x2ec5(%rip),%rax
mov    (%rax),%edi
lea    0xedc(%rip),%rsi
call   1030 <fprintf@plt>
mov    0x2eb0(%rip),%rax
mov    (%rax),%edi
lea    0xfc2(%rip),%rsi
call   1030 <fprintf@plt>
pop    %rbp
ret

x86 assembly (clang, -O2):
<usage>:
push   %rbx
mov    0x2ec8(%rip),%rbx
mov    (%rbx),%edi
lea    0xedf(%rip),%rsi
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xfcc(%rip),%rsi
pop    %rbx
jmp    1030 <fprintf@plt>

LLVM IR (-O0):
@stderr = global i32 0
@.str = [251 x i8] c"Htun 0.9.6\0AUsage: htund [OPTION]...\0AOptions:\0A -c cfgfile Use cfgfile as the config file.\0A -f Run htund in the foreground.\0A -v Print the htund version information and exit.\0A -h Print usage information and exit.\0A\00"
@.str.1 = [302 x i8] c" -t tunfile Use tunfile as the tun device file.\0A -l logfile Use logfile as the log output file.\0A Give - for stdout; this implies -f.\0A -r Do not alter default route.\0A -p port Set server port to given value\0A -o cOnfigtest only, check config syntax\0A\00"
define void @usage() {
%1 = load i32, i32* @stderr
%2 = call i32 @fprintf(i32 %1, i8* getelementptr inbounds ([251 x i8], [251 x i8]* @.str, i64 0, i64 0))
%3 = load i32, i32* @stderr
%4 = call i32 @fprintf(i32 %3, i8* getelementptr inbounds ([302 x i8], [302 x i8]* @.str.1, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@stderr = global i32 0
@.str = [251 x i8] c"Htun 0.9.6\0AUsage: htund [OPTION]...\0AOptions:\0A -c cfgfile Use cfgfile as the config file.\0A -f Run htund in the foreground.\0A -v Print the htund version information and exit.\0A -h Print usage information and exit.\0A\00"
@.str.1 = [302 x i8] c" -t tunfile Use tunfile as the tun device file.\0A -l logfile Use logfile as the log output file.\0A Give - for stdout; this implies -f.\0A -r Do not alter default route.\0A -p port Set server port to given value\0A -o cOnfigtest only, check config syntax\0A\00"
define void @usage() {
%1 = load i32, i32* @stderr
%2 = tail call i32 @fprintf(i32 %1, i8* getelementptr inbounds ([251 x i8], [251 x i8]* @.str, i64 0, i64 0))
%3 = load i32, i32* @stderr
%4 = tail call i32 @fprintf(i32 %3, i8* getelementptr inbounds ([302 x i8], [302 x i8]* @.str.1, i64 0, i64 0))
ret void
}