#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*/ exit(int);
int /*<<< orphan*/ fprintf(int /*<<< orphan*/, char *);
int /*<<< orphan*/ stderr;
void fail_usage() {
  fprintf(stderr, "Usage: blpipe <mode> <key>, where:\n");
  fprintf(stderr, "<mode> is either --encrypt or --decrypt and\n");
  fprintf(stderr, "<key> is a one-character passphrase from which the 4-bit "
                  "key is derived. All characters except from the first one "
                  "are omitted for safety reasons.\n\n");
  exit(1);
}


x86 assembly (clang, -O0):
<fail_usage>:
push   %rbp
mov    %rsp,%rbp
mov    0x2eb5(%rip),%rax
mov    (%rax),%edi
lea    0xecc(%rip),%rsi
call   1030 <fprintf@plt>
mov    0x2ea0(%rip),%rax
mov    (%rax),%edi
lea    0xedb(%rip),%rsi
call   1030 <fprintf@plt>
mov    0x2e8b(%rip),%rax
mov    (%rax),%edi
lea    0xef3(%rip),%rsi
call   1030 <fprintf@plt>
mov    $0x1,%edi
call   1040 <exit@plt>

x86 assembly (clang, -O2):
<fail_usage>:
push   %rbx
mov    0x2eb8(%rip),%rbx
mov    (%rbx),%edi
lea    0xecf(%rip),%rsi
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xee5(%rip),%rsi
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf04(%rip),%rsi
call   1030 <fprintf@plt>
mov    $0x1,%edi
call   1040 <exit@plt>

LLVM IR (-O0):
@stderr = global i32 0
@.str = [36 x i8] c"Usage: blpipe <mode> <key>, where:\0A\00"
@.str.1 = [45 x i8] c"<mode> is either --encrypt or --decrypt and\0A\00"
@.str.2 = [148 x i8] c"<key> is a one-character passphrase from which the 4-bit key is derived. All characters except from the first one are omitted for safety reasons.\0A\0A\00"
define void @fail_usage() {
%1 = load i32, i32* @stderr
%2 = call i32 @fprintf(i32 %1, i8* getelementptr inbounds ([36 x i8], [36 x i8]* @.str, i64 0, i64 0))
%3 = load i32, i32* @stderr
%4 = call i32 @fprintf(i32 %3, i8* getelementptr inbounds ([45 x i8], [45 x i8]* @.str.1, i64 0, i64 0))
%5 = load i32, i32* @stderr
%6 = call i32 @fprintf(i32 %5, i8* getelementptr inbounds ([148 x i8], [148 x i8]* @.str.2, i64 0, i64 0))
%7 = call i32 @exit(i32 1)
unreachable
}

LLVM IR (-O2):
@stderr = global i32 0
@.str = [36 x i8] c"Usage: blpipe <mode> <key>, where:\0A\00"
@.str.1 = [45 x i8] c"<mode> is either --encrypt or --decrypt and\0A\00"
@.str.2 = [148 x i8] c"<key> is a one-character passphrase from which the 4-bit key is derived. All characters except from the first one are omitted for safety reasons.\0A\0A\00"
define void @fail_usage() {
%1 = load i32, i32* @stderr
%2 = tail call i32 @fprintf(i32 %1, i8* getelementptr inbounds ([36 x i8], [36 x i8]* @.str, i64 0, i64 0))
%3 = load i32, i32* @stderr
%4 = tail call i32 @fprintf(i32 %3, i8* getelementptr inbounds ([45 x i8], [45 x i8]* @.str.1, i64 0, i64 0))
%5 = load i32, i32* @stderr
%6 = tail call i32 @fprintf(i32 %5, i8* getelementptr inbounds ([148 x i8], [148 x i8]* @.str.2, i64 0, i64 0))
%7 = tail call i32 @exit(i32 1)
unreachable
}