#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(void) {
  printf("\nUSAGE: ./nRouted [-d] [-m] [-p protocol]\n\n");
  printf("If the -d parameter is given to nRouted then the program will start "
         "as a background daemon.\n");
  printf("If the -m parameter is given to nRouted then the program will print "
         "out received packets.\n");
  printf("If the -p parameter selects active protocol on startup (default "
         "6lowpan).\n");
  printf("Available protocols: mac, nudp, 6lowpan.\n");
  return;
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
lea    0xee5(%rip),%rdi
call   1030 <printf@plt>
lea    0xf05(%rip),%rdi
call   1030 <printf@plt>
lea    0xf56(%rip),%rdi
call   1030 <printf@plt>
lea    0xfa5(%rip),%rdi
call   1030 <printf@plt>
lea    0xfe4(%rip),%rdi
call   1030 <printf@plt>
pop    %rbp
ret

x86 assembly (clang, -O2):
<usage>:
push   %rax
lea    0xee8(%rip),%rdi
call   1030 <puts@plt>
lea    0xf07(%rip),%rdi
call   1030 <puts@plt>
lea    0xf57(%rip),%rdi
call   1030 <puts@plt>
lea    0xfa5(%rip),%rdi
call   1030 <puts@plt>
lea    0xfe3(%rip),%rdi
pop    %rax
jmp    1030 <puts@plt>

LLVM IR (-O0):
@.str = [44 x i8] c"\0AUSAGE: ./nRouted [-d] [-m] [-p protocol]\0A\0A\00"
@.str.1 = [93 x i8] c"If the -d parameter is given to nRouted then the program will start as a background daemon.\0A\00"
@.str.2 = [91 x i8] c"If the -m parameter is given to nRouted then the program will print out received packets.\0A\00"
@.str.3 = [75 x i8] c"If the -p parameter selects active protocol on startup (default 6lowpan).\0A\00"
@.str.4 = [42 x i8] c"Available protocols: mac, nudp, 6lowpan.\0A\00"
define void @usage() {
%1 = call i32 @printf(i8* getelementptr inbounds ([44 x i8], [44 x i8]* @.str, i64 0, i64 0))
%2 = call i32 @printf(i8* getelementptr inbounds ([93 x i8], [93 x i8]* @.str.1, i64 0, i64 0))
%3 = call i32 @printf(i8* getelementptr inbounds ([91 x i8], [91 x i8]* @.str.2, i64 0, i64 0))
%4 = call i32 @printf(i8* getelementptr inbounds ([75 x i8], [75 x i8]* @.str.3, i64 0, i64 0))
%5 = call i32 @printf(i8* getelementptr inbounds ([42 x i8], [42 x i8]* @.str.4, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@str = [43 x i8] c"\0AUSAGE: ./nRouted [-d] [-m] [-p protocol]\0A\00"
@str.5 = [92 x i8] c"If the -d parameter is given to nRouted then the program will start as a background daemon.\00"
@str.6 = [90 x i8] c"If the -m parameter is given to nRouted then the program will print out received packets.\00"
@str.7 = [74 x i8] c"If the -p parameter selects active protocol on startup (default 6lowpan).\00"
@str.8 = [41 x i8] c"Available protocols: mac, nudp, 6lowpan.\00"
define void @usage() {
%1 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([43 x i8], [43 x i8]* @str, i64 0, i64 0))
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([92 x i8], [92 x i8]* @str.5, i64 0, i64 0))
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([90 x i8], [90 x i8]* @str.6, i64 0, i64 0))
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([74 x i8], [74 x i8]* @str.7, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([41 x i8], [41 x i8]* @str.8, i64 0, i64 0))
ret void
}