#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;
usage(char *c) {
  fprintf(stderr, "usage: %s -p port \n", c);
  fprintf(stderr, "      -p                  : portnumber\n");
  fprintf(stderr, "      -b                  : bufsize in bytes\n");
  fprintf(stderr, "      -n                  : number of packets\n");
  fprintf(stderr, "      -d                  : debug 1 or nodebug 0\n");
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x10(%rbp)
mov    0x2ebd(%rip),%rax
mov    (%rax),%edi
mov    -0x10(%rbp),%rdx
lea    0xed0(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2ea2(%rip),%rax
mov    (%rax),%edi
lea    0xecd(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e8b(%rip),%rax
mov    (%rax),%edi
lea    0xede(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e74(%rip),%rax
mov    (%rax),%edi
lea    0xef5(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e5d(%rip),%rax
mov    (%rax),%edi
lea    0xf0d(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    -0x4(%rbp),%eax
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<usage>:
push   %rbx
mov    %rdi,%rdx
mov    0x2ec5(%rip),%rbx
mov    (%rbx),%edi
lea    0xedc(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xee0(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xef8(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf16(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf35(%rip),%rsi
xor    %eax,%eax
pop    %rbx
jmp    1030 <fprintf@plt>

LLVM IR (-O0):
@stderr = global i32 0
@.str = [20 x i8] c"usage: %s -p port \0A\00"
@.str.1 = [40 x i8] c" -p : portnumber\0A\00"
@.str.2 = [46 x i8] c" -b : bufsize in bytes\0A\00"
@.str.3 = [47 x i8] c" -n : number of packets\0A\00"
@.str.4 = [50 x i8] c" -d : debug 1 or nodebug 0\0A\00"
define i32 @usage(i8* %0) {
%2 = alloca i32
%3 = alloca i8*
store i8* %0, i8** %3
%4 = load i32, i32* @stderr
%5 = load i8*, i8** %3
%6 = call i32 (i32, i8*, ...) @fprintf(i32 %4, i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str, i64 0, i64 0), i8* %5)
%7 = load i32, i32* @stderr
%8 = call i32 (i32, i8*, ...) @fprintf(i32 %7, i8* getelementptr inbounds ([40 x i8], [40 x i8]* @.str.1, i64 0, i64 0))
%9 = load i32, i32* @stderr
%10 = call i32 (i32, i8*, ...) @fprintf(i32 %9, i8* getelementptr inbounds ([46 x i8], [46 x i8]* @.str.2, i64 0, i64 0))
%11 = load i32, i32* @stderr
%12 = call i32 (i32, i8*, ...) @fprintf(i32 %11, i8* getelementptr inbounds ([47 x i8], [47 x i8]* @.str.3, i64 0, i64 0))
%13 = load i32, i32* @stderr
%14 = call i32 (i32, i8*, ...) @fprintf(i32 %13, i8* getelementptr inbounds ([50 x i8], [50 x i8]* @.str.4, i64 0, i64 0))
%15 = load i32, i32* %2
ret i32 %15
}

LLVM IR (-O2):
@stderr = global i32 0
@.str = [20 x i8] c"usage: %s -p port \0A\00"
@.str.1 = [40 x i8] c" -p : portnumber\0A\00"
@.str.2 = [46 x i8] c" -b : bufsize in bytes\0A\00"
@.str.3 = [47 x i8] c" -n : number of packets\0A\00"
@.str.4 = [50 x i8] c" -d : debug 1 or nodebug 0\0A\00"
define i32 @usage(i8* %0) {
%2 = load i32, i32* @stderr
%3 = tail call i32 (i32, i8*, ...) @fprintf(i32 %2, i8* getelementptr inbounds ([20 x i8], [20 x i8]* @.str, i64 0, i64 0), i8* %0)
%4 = load i32, i32* @stderr
%5 = tail call i32 (i32, i8*, ...) @fprintf(i32 %4, i8* getelementptr inbounds ([40 x i8], [40 x i8]* @.str.1, i64 0, i64 0))
%6 = load i32, i32* @stderr
%7 = tail call i32 (i32, i8*, ...) @fprintf(i32 %6, i8* getelementptr inbounds ([46 x i8], [46 x i8]* @.str.2, i64 0, i64 0))
%8 = load i32, i32* @stderr
%9 = tail call i32 (i32, i8*, ...) @fprintf(i32 %8, i8* getelementptr inbounds ([47 x i8], [47 x i8]* @.str.3, i64 0, i64 0))
%10 = load i32, i32* @stderr
%11 = tail call i32 (i32, i8*, ...) @fprintf(i32 %10, i8* getelementptr inbounds ([50 x i8], [50 x i8]* @.str.4, i64 0, i64 0))
ret i32 undef
}