#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 printUsage(void) {
  printf("Usage:   echo_server [options]\n");
  printf("options:\n");
  printf("-i       ignore OOTB packets\n");
  printf("-s       source address\n");
  printf("-t       time to live in ms\n");
  printf("-v       verbose mode\n");
  printf("-V       very verbose mode\n");
}


x86 assembly (clang, -O0):
<printUsage>:
push   %rbp
mov    %rsp,%rbp
lea    0xee5(%rip),%rdi
call   1030 <printf@plt>
lea    0xef9(%rip),%rdi
call   1030 <printf@plt>
lea    0xef7(%rip),%rdi
call   1030 <printf@plt>
lea    0xf09(%rip),%rdi
call   1030 <printf@plt>
lea    0xf16(%rip),%rdi
call   1030 <printf@plt>
lea    0xf27(%rip),%rdi
call   1030 <printf@plt>
lea    0xf32(%rip),%rdi
call   1030 <printf@plt>
pop    %rbp
ret

x86 assembly (clang, -O2):
<printUsage>:
push   %rax
lea    0xee8(%rip),%rdi
call   1030 <puts@plt>
lea    0xefb(%rip),%rdi
call   1030 <puts@plt>
lea    0xef8(%rip),%rdi
call   1030 <puts@plt>
lea    0xf09(%rip),%rdi
call   1030 <puts@plt>
lea    0xf15(%rip),%rdi
call   1030 <puts@plt>
lea    0xf25(%rip),%rdi
call   1030 <puts@plt>
lea    0xf2f(%rip),%rdi
pop    %rax
jmp    1030 <puts@plt>

LLVM IR (-O0):
@.str = [32 x i8] c"Usage: echo_server [options]\0A\00"
@.str.1 = [10 x i8] c"options:\0A\00"
@.str.2 = [30 x i8] c"-i ignore OOTB packets\0A\00"
@.str.3 = [25 x i8] c"-s source address\0A\00"
@.str.4 = [29 x i8] c"-t time to live in ms\0A\00"
@.str.5 = [23 x i8] c"-v verbose mode\0A\00"
@.str.6 = [28 x i8] c"-V very verbose mode\0A\00"
define void @printUsage() {
%1 = call i32 @printf(i8* getelementptr inbounds ([32 x i8], [32 x i8]* @.str, i64 0, i64 0))
%2 = call i32 @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.1, i64 0, i64 0))
%3 = call i32 @printf(i8* getelementptr inbounds ([30 x i8], [30 x i8]* @.str.2, i64 0, i64 0))
%4 = call i32 @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.3, i64 0, i64 0))
%5 = call i32 @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str.4, i64 0, i64 0))
%6 = call i32 @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str.5, i64 0, i64 0))
%7 = call i32 @printf(i8* getelementptr inbounds ([28 x i8], [28 x i8]* @.str.6, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@str = [31 x i8] c"Usage: echo_server [options]\00"
@str.7 = [9 x i8] c"options:\00"
@str.8 = [29 x i8] c"-i ignore OOTB packets\00"
@str.9 = [24 x i8] c"-s source address\00"
@str.10 = [28 x i8] c"-t time to live in ms\00"
@str.11 = [22 x i8] c"-v verbose mode\00"
@str.12 = [27 x i8] c"-V very verbose mode\00"
define void @printUsage() {
%1 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([31 x i8], [31 x i8]* @str, i64 0, i64 0))
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([9 x i8], [9 x i8]* @str.7, i64 0, i64 0))
%3 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @str.8, i64 0, i64 0))
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([24 x i8], [24 x i8]* @str.9, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([28 x i8], [28 x i8]* @str.10, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([22 x i8], [22 x i8]* @str.11, i64 0, i64 0))
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([27 x i8], [27 x i8]* @str.12, i64 0, i64 0))
ret void
}