#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;
void usage(int argc, char **argv) {
  fprintf(stderr, "Usage: %s -f [filename]\n", argv[0]);
  fprintf(stderr, "	       -b [max. buffer size] default %d bytes.\n", 32768);
  fprintf(stderr, "	       -o [max. file offset] default %d bytes.\n", 32768);
  fprintf(stderr, "	       -r [max. valid regions] default %d regions\n", 2);
  return;
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %edi,-0x4(%rbp)
mov    %rsi,-0x10(%rbp)
mov    0x2eba(%rip),%rax
mov    (%rax),%edi
mov    -0x10(%rbp),%rax
mov    (%rax),%rdx
lea    0xeca(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e9c(%rip),%rax
mov    (%rax),%edi
lea    0xecc(%rip),%rsi
mov    $0x8000,%edx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e80(%rip),%rax
mov    (%rax),%edi
lea    0xee1(%rip),%rsi
mov    $0x8000,%edx
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e64(%rip),%rax
mov    (%rax),%edi
lea    0xef6(%rip),%rsi
mov    $0x2,%edx
mov    $0x0,%al
call   1030 <fprintf@plt>
add    $0x10,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<usage>:
push   %rbx
mov    0x2ec8(%rip),%rbx
mov    (%rbx),%edi
mov    (%rsi),%rdx
lea    0xedc(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xee5(%rip),%rsi
mov    $0x8000,%edx
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf01(%rip),%rsi
mov    $0x8000,%edx
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf1d(%rip),%rsi
mov    $0x2,%edx
xor    %eax,%eax
pop    %rbx
jmp    1030 <fprintf@plt>

LLVM IR (-O0):
@stderr = global i32 0
@.str = [25 x i8] c"Usage: %s -f [filename]\0A\00"
@.str.1 = [49 x i8] c"\09 -b [max. buffer size] default %d bytes.\0A\00"
@.str.2 = [49 x i8] c"\09 -o [max. file offset] default %d bytes.\0A\00"
@.str.3 = [52 x i8] c"\09 -r [max. valid regions] default %d regions\0A\00"
define void @usage(i32 %0, i8** %1) {
%3 = alloca i32
%4 = alloca i8**
store i32 %0, i32* %3
store i8** %1, i8*** %4
%5 = load i32, i32* @stderr
%6 = load i8**, i8*** %4
%7 = getelementptr inbounds i8*, i8** %6, i64 0
%8 = load i8*, i8** %7
%9 = call i32 (i32, i8*, ...) @fprintf(i32 %5, i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str, i64 0, i64 0), i8* %8)
%10 = load i32, i32* @stderr
%11 = call i32 (i32, i8*, ...) @fprintf(i32 %10, i8* getelementptr inbounds ([49 x i8], [49 x i8]* @.str.1, i64 0, i64 0), i32 32768)
%12 = load i32, i32* @stderr
%13 = call i32 (i32, i8*, ...) @fprintf(i32 %12, i8* getelementptr inbounds ([49 x i8], [49 x i8]* @.str.2, i64 0, i64 0), i32 32768)
%14 = load i32, i32* @stderr
%15 = call i32 (i32, i8*, ...) @fprintf(i32 %14, i8* getelementptr inbounds ([52 x i8], [52 x i8]* @.str.3, i64 0, i64 0), i32 2)
ret void
}

LLVM IR (-O2):
@stderr = global i32 0
@.str = [25 x i8] c"Usage: %s -f [filename]\0A\00"
@.str.1 = [49 x i8] c"\09 -b [max. buffer size] default %d bytes.\0A\00"
@.str.2 = [49 x i8] c"\09 -o [max. file offset] default %d bytes.\0A\00"
@.str.3 = [52 x i8] c"\09 -r [max. valid regions] default %d regions\0A\00"
define void @usage(i32 %0, i8** nocapture %1) {
%3 = load i32, i32* @stderr
%4 = load i8*, i8** %1
%5 = tail call i32 (i32, i8*, ...) @fprintf(i32 %3, i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str, i64 0, i64 0), i8* %4)
%6 = load i32, i32* @stderr
%7 = tail call i32 (i32, i8*, ...) @fprintf(i32 %6, i8* getelementptr inbounds ([49 x i8], [49 x i8]* @.str.1, i64 0, i64 0), i32 32768)
%8 = load i32, i32* @stderr
%9 = tail call i32 (i32, i8*, ...) @fprintf(i32 %8, i8* getelementptr inbounds ([49 x i8], [49 x i8]* @.str.2, i64 0, i64 0), i32 32768)
%10 = load i32, i32* @stderr
%11 = tail call i32 (i32, i8*, ...) @fprintf(i32 %10, i8* getelementptr inbounds ([52 x i8], [52 x i8]* @.str.3, i64 0, i64 0), i32 2)
ret void
}