#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(const char *argv0) {
  printf("Usage:\n");
  printf("  %s            start an asyncwatch process\n", argv0);
  printf("\n");
  printf("Options:\n");
  printf("  -d, --ib-dev=<dev>     use IB device <dev> (default first device "
         "found)\n");
  printf("  -h, --help             print a help text and exit\n");
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
lea    0xedd(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
mov    -0x8(%rbp),%rsi
lea    0xed3(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf45(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xee4(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xee0(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
lea    0xf1d(%rip),%rdi
mov    $0x0,%al
call   1030 <printf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<usage>:
push   %rbx
mov    %rdi,%rbx
lea    0xef2(%rip),%rdi
call   1040 <puts@plt>
lea    0xeb9(%rip),%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1050 <printf@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
lea    0xed2(%rip),%rdi
call   1040 <puts@plt>
lea    0xecf(%rip),%rdi
call   1040 <puts@plt>
lea    0xf0d(%rip),%rdi
pop    %rbx
jmp    1040 <puts@plt>

LLVM IR (-O0):
@.str = [8 x i8] c"Usage:\0A\00"
@.str.1 = [45 x i8] c" %s start an asyncwatch process\0A\00"
@.str.2 = [2 x i8] c"\0A\00"
@.str.3 = [10 x i8] c"Options:\0A\00"
@.str.4 = [75 x i8] c" -d, --ib-dev=<dev> use IB device <dev> (default first device found)\0A\00"
@.str.5 = [53 x i8] c" -h, --help print a help text and exit\0A\00"
define void @usage(i8* %0) {
%2 = alloca i8*
store i8* %0, i8** %2
%3 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str, i64 0, i64 0))
%4 = load i8*, i8** %2
%5 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([45 x i8], [45 x i8]* @.str.1, i64 0, i64 0), i8* %4)
%6 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([2 x i8], [2 x i8]* @.str.2, i64 0, i64 0))
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([10 x i8], [10 x i8]* @.str.3, i64 0, i64 0))
%8 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([75 x i8], [75 x i8]* @.str.4, i64 0, i64 0))
%9 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([53 x i8], [53 x i8]* @.str.5, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@.str.1 = [45 x i8] c" %s start an asyncwatch process\0A\00"
@str = [7 x i8] c"Usage:\00"
@str.6 = [9 x i8] c"Options:\00"
@str.7 = [74 x i8] c" -d, --ib-dev=<dev> use IB device <dev> (default first device found)\00"
@str.8 = [52 x i8] c" -h, --help print a help text and exit\00"
define void @usage(i8* %0) {
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @str, i64 0, i64 0))
%3 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([45 x i8], [45 x i8]* @.str.1, i64 0, i64 0), i8* %0)
%4 = tail call i32 @putchar(i32 10)
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([9 x i8], [9 x i8]* @str.6, i64 0, i64 0))
%6 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([74 x i8], [74 x i8]* @str.7, i64 0, i64 0))
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([52 x i8], [52 x i8]* @str.8, i64 0, i64 0))
ret void
}