#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*/ printf(char *, ...);
void usage(char *progname) {
  printf("Usage: %s [OPTIONS] filename\n", progname);
  printf("OPTIONS:");
  printf("\t-d        , --deep-scan          \tDeep scan (pcap only)\n");
  printf("\t\t-n        , --pcapng             \tforce pcapng format\n");
  printf("\t\t-o <file> , --outfile <file>     \tset output file name\n");
  printf("\t\t-t <nr>   , --data-link-type <nr>\tData link type\n");
  printf("\t\t-v        , --verbose            \tVerbose output\n");
  printf("\n");
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    -0x8(%rbp),%rsi
lea    0xed9(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xee9(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xee4(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf10(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf3b(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf67(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf8d(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xed6(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<usage>:
push   %rax
mov    %rdi,%rsi
lea    0xec5(%rip),%rdi
xor    %eax,%eax
call   1050 <printf@plt>
lea    0xed5(%rip),%rdi
xor    %eax,%eax
call   1050 <printf@plt>
lea    0xed0(%rip),%rdi
call   1040 <puts@plt>
lea    0xefd(%rip),%rdi
call   1040 <puts@plt>
lea    0xf29(%rip),%rdi
call   1040 <puts@plt>
lea    0xf56(%rip),%rdi
call   1040 <puts@plt>
lea    0xf7d(%rip),%rdi
call   1040 <puts@plt>
mov    $0xa,%edi
pop    %rax
jmp    1030 <putchar@plt>

LLVM IR (-O0):
@.str = [30 x i8] c"Usage: %s [OPTIONS] filename\0A\00"
@.str.1 = [9 x i8] c"OPTIONS:\00"
@.str.2 = [58 x i8] c"\09-d , --deep-scan \09Deep scan (pcap only)\0A\00"
@.str.3 = [57 x i8] c"\09\09-n , --pcapng \09force pcapng format\0A\00"
@.str.4 = [58 x i8] c"\09\09-o <file> , --outfile <file> \09set output file name\0A\00"
@.str.5 = [52 x i8] c"\09\09-t <nr> , --data-link-type <nr>\09Data link type\0A\00"
@.str.6 = [52 x i8] c"\09\09-v , --verbose \09Verbose output\0A\00"
@.str.7 = [2 x i8] c"\0A\00"
define void @usage(i8* %0) {
%2 = alloca i8*
store i8* %0, i8** %2
%3 = load i8*, i8** %2
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([30 x i8], [30 x i8]* @.str, i64 0, i64 0), i8* %3)
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.1, i64 0, i64 0))
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([58 x i8], [58 x i8]* @.str.2, i64 0, i64 0))
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([57 x i8], [57 x i8]* @.str.3, i64 0, i64 0))
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([58 x i8], [58 x i8]* @.str.4, i64 0, i64 0))
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([52 x i8], [52 x i8]* @.str.5, i64 0, i64 0))
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([52 x i8], [52 x i8]* @.str.6, i64 0, i64 0))
%11 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.7, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@.str = [30 x i8] c"Usage: %s [OPTIONS] filename\0A\00"
@.str.1 = [9 x i8] c"OPTIONS:\00"
@str = [57 x i8] c"\09-d , --deep-scan \09Deep scan (pcap only)\00"
@str.8 = [56 x i8] c"\09\09-n , --pcapng \09force pcapng format\00"
@str.9 = [57 x i8] c"\09\09-o <file> , --outfile <file> \09set output file name\00"
@str.10 = [51 x i8] c"\09\09-t <nr> , --data-link-type <nr>\09Data link type\00"
@str.11 = [51 x i8] c"\09\09-v , --verbose \09Verbose output\00"
define void @usage(i8* %0) {
%2 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([30 x i8], [30 x i8]* @.str, i64 0, i64 0), i8* %0)
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([9 x i8], [9 x i8]* @.str.1, i64 0, i64 0))
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([57 x i8], [57 x i8]* @str, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([56 x i8], [56 x i8]* @str.8, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([57 x i8], [57 x i8]* @str.9, i64 0, i64 0))
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([51 x i8], [51 x i8]* @str.10, i64 0, i64 0))
%8 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([51 x i8], [51 x i8]* @str.11, i64 0, i64 0))
%9 = tail call i32 @putchar(i32 10)
ret void
}