#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, "\n"
                  "lfdk"
                  " version "
                  "0.1.0"
                  ", Linux Firmware Debug Kit"
                  "\n");
  fprintf(stderr,
          "Copyright (C) 2006 - 2009, Merck Hung <merckhung@gmail.com>\n");
  fprintf(stderr, "Usage: "
                  "lfdk"
                  " [-h] [-d /dev/lfdd] [-n ./pci.ids] [-b 255]\n");
  fprintf(stderr, "\t-n\tFilename of PCI Name Database, default is "
                  "/usr/share/misc/pci.ids\n");
  fprintf(stderr, "\t-d\tDevice name of Linux Firmware Debug Driver, default "
                  "is /dev/lfdd\n");
  fprintf(stderr, "\t-b\tMaximum PCI Bus number to scan, default is 255\n");
  fprintf(stderr, "\t-h\tprint this message.\n");
  fprintf(stderr, "\n");
}


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    0xef6(%rip),%rsi
call   1030 <fprintf@plt>
mov    0x2e9b(%rip),%rax
mov    (%rax),%edi
lea    0xf1e(%rip),%rsi
call   1030 <fprintf@plt>
mov    0x2e86(%rip),%rax
mov    (%rax),%edi
lea    0xf42(%rip),%rsi
call   1030 <fprintf@plt>
mov    0x2e71(%rip),%rax
mov    (%rax),%edi
lea    0xf74(%rip),%rsi
call   1030 <fprintf@plt>
mov    0x2e5c(%rip),%rax
mov    (%rax),%edi
lea    0xfa5(%rip),%rsi
call   1030 <fprintf@plt>
mov    0x2e47(%rip),%rax
mov    (%rax),%edi
lea    0xfc4(%rip),%rsi
call   1030 <fprintf@plt>
mov    0x2e32(%rip),%rax
mov    (%rax),%edi
lea    0xfc6(%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    0xf00(%rip),%rsi
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf2f(%rip),%rsi
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf5a(%rip),%rsi
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf93(%rip),%rsi
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xfcb(%rip),%rsi
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xff1(%rip),%rsi
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xffa(%rip),%rsi
pop    %rbx
jmp    1030 <fprintf@plt>

LLVM IR (-O0):
@stderr = global i32 0
@.str = [47 x i8] c"\0Alfdk version 0.1.0, Linux Firmware Debug Kit\0A\00"
@.str.1 = [61 x i8] c"Copyright (C) 2006 - 2009, Merck Hung <merckhung@gmail.com>\0A\00"
@.str.2 = [57 x i8] c"Usage: lfdk [-h] [-d /dev/lfdd] [-n ./pci.ids] [-b 255]\0A\00"
@.str.3 = [71 x i8] c"\09-n\09Filename of PCI Name Database, default is /usr/share/misc/pci.ids\0A\00"
@.str.4 = [70 x i8] c"\09-d\09Device name of Linux Firmware Debug Driver, default is /dev/lfdd\0A\00"
@.str.5 = [52 x i8] c"\09-b\09Maximum PCI Bus number to scan, default is 255\0A\00"
@.str.6 = [25 x i8] c"\09-h\09print this message.\0A\00"
@.str.7 = [2 x i8] c"\0A\00"
define void @usage() {
%1 = load i32, i32* @stderr
%2 = call i32 @fprintf(i32 %1, i8* getelementptr inbounds ([47 x i8], [47 x i8]* @.str, i64 0, i64 0))
%3 = load i32, i32* @stderr
%4 = call i32 @fprintf(i32 %3, i8* getelementptr inbounds ([61 x i8], [61 x i8]* @.str.1, i64 0, i64 0))
%5 = load i32, i32* @stderr
%6 = call i32 @fprintf(i32 %5, i8* getelementptr inbounds ([57 x i8], [57 x i8]* @.str.2, i64 0, i64 0))
%7 = load i32, i32* @stderr
%8 = call i32 @fprintf(i32 %7, i8* getelementptr inbounds ([71 x i8], [71 x i8]* @.str.3, i64 0, i64 0))
%9 = load i32, i32* @stderr
%10 = call i32 @fprintf(i32 %9, i8* getelementptr inbounds ([70 x i8], [70 x i8]* @.str.4, i64 0, i64 0))
%11 = load i32, i32* @stderr
%12 = call i32 @fprintf(i32 %11, i8* getelementptr inbounds ([52 x i8], [52 x i8]* @.str.5, i64 0, i64 0))
%13 = load i32, i32* @stderr
%14 = call i32 @fprintf(i32 %13, i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.6, i64 0, i64 0))
%15 = load i32, i32* @stderr
%16 = call i32 @fprintf(i32 %15, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.7, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@stderr = global i32 0
@.str = [47 x i8] c"\0Alfdk version 0.1.0, Linux Firmware Debug Kit\0A\00"
@.str.1 = [61 x i8] c"Copyright (C) 2006 - 2009, Merck Hung <merckhung@gmail.com>\0A\00"
@.str.2 = [57 x i8] c"Usage: lfdk [-h] [-d /dev/lfdd] [-n ./pci.ids] [-b 255]\0A\00"
@.str.3 = [71 x i8] c"\09-n\09Filename of PCI Name Database, default is /usr/share/misc/pci.ids\0A\00"
@.str.4 = [70 x i8] c"\09-d\09Device name of Linux Firmware Debug Driver, default is /dev/lfdd\0A\00"
@.str.5 = [52 x i8] c"\09-b\09Maximum PCI Bus number to scan, default is 255\0A\00"
@.str.6 = [25 x i8] c"\09-h\09print this message.\0A\00"
@.str.7 = [2 x i8] c"\0A\00"
define void @usage() {
%1 = load i32, i32* @stderr
%2 = tail call i32 @fprintf(i32 %1, i8* getelementptr inbounds ([47 x i8], [47 x i8]* @.str, i64 0, i64 0))
%3 = load i32, i32* @stderr
%4 = tail call i32 @fprintf(i32 %3, i8* getelementptr inbounds ([61 x i8], [61 x i8]* @.str.1, i64 0, i64 0))
%5 = load i32, i32* @stderr
%6 = tail call i32 @fprintf(i32 %5, i8* getelementptr inbounds ([57 x i8], [57 x i8]* @.str.2, i64 0, i64 0))
%7 = load i32, i32* @stderr
%8 = tail call i32 @fprintf(i32 %7, i8* getelementptr inbounds ([71 x i8], [71 x i8]* @.str.3, i64 0, i64 0))
%9 = load i32, i32* @stderr
%10 = tail call i32 @fprintf(i32 %9, i8* getelementptr inbounds ([70 x i8], [70 x i8]* @.str.4, i64 0, i64 0))
%11 = load i32, i32* @stderr
%12 = tail call i32 @fprintf(i32 %11, i8* getelementptr inbounds ([52 x i8], [52 x i8]* @.str.5, i64 0, i64 0))
%13 = load i32, i32* @stderr
%14 = tail call i32 @fprintf(i32 %13, i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.6, i64 0, i64 0))
%15 = load i32, i32* @stderr
%16 = tail call i32 @fprintf(i32 %15, i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.7, i64 0, i64 0))
ret void
}