#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 usage(char *argv0) {
  fprintf(stderr, "  Usage: %s [options] {verb} {file name(s) ... }\n", argv0);
  fprintf(stderr, "  Options:\n");
  fprintf(stderr, "    -kl {n}:  Key   length in bytes.\n");
  fprintf(stderr, "    -bl {n}:  Block length in bytes.\n");
  fprintf(stderr, "  Verb:\n");
  fprintf(stderr, "    +{key text} for encrypt\n");
  fprintf(stderr, "    -{key text} for decrypt\n");
  fprintf(stderr,
          "    check       to see if file was encrypted with this program\n");
  exit(1);
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
sub    $0x10,%rsp
mov    %rdi,-0x8(%rbp)
mov    0x2ead(%rip),%rax
mov    (%rax),%edi
mov    -0x8(%rbp),%rdx
lea    0xec0(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e92(%rip),%rax
mov    (%rax),%edi
lea    0xedb(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e7b(%rip),%rax
mov    (%rax),%edi
lea    0xed0(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e64(%rip),%rax
mov    (%rax),%edi
lea    0xedf(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e4d(%rip),%rax
mov    (%rax),%edi
lea    0xeee(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e36(%rip),%rax
mov    (%rax),%edi
lea    0xee0(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e1f(%rip),%rax
mov    (%rax),%edi
lea    0xee6(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    0x2e08(%rip),%rax
mov    (%rax),%edi
lea    0xeec(%rip),%rsi
mov    $0x0,%al
call   1030 <fprintf@plt>
mov    $0x1,%edi
call   1040 <exit@plt>

x86 assembly (clang, -O2):
<usage>:
push   %rbx
mov    %rdi,%rdx
mov    0x2eb5(%rip),%rbx
mov    (%rbx),%edi
lea    0xecc(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xeee(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xeea(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf00(%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    0xf0f(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf1c(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    (%rbx),%edi
lea    0xf29(%rip),%rsi
xor    %eax,%eax
call   1030 <fprintf@plt>
mov    $0x1,%edi
call   1040 <exit@plt>

LLVM IR (-O0):
@stderr = global i32 0
@.str = [50 x i8] c" Usage: %s [options] {verb} {file name(s) ... }\0A\00"
@.str.1 = [12 x i8] c" Options:\0A\00"
@.str.2 = [38 x i8] c" -kl {n}: Key length in bytes.\0A\00"
@.str.3 = [38 x i8] c" -bl {n}: Block length in bytes.\0A\00"
@.str.4 = [9 x i8] c" Verb:\0A\00"
@.str.5 = [29 x i8] c" +{key text} for encrypt\0A\00"
@.str.6 = [29 x i8] c" -{key text} for decrypt\0A\00"
@.str.7 = [64 x i8] c" check to see if file was encrypted with this program\0A\00"
define void @usage(i8* %0) {
%2 = alloca i8*
store i8* %0, i8** %2
%3 = load i32, i32* @stderr
%4 = load i8*, i8** %2
%5 = call i32 (i32, i8*, ...) @fprintf(i32 %3, i8* getelementptr inbounds ([50 x i8], [50 x i8]* @.str, i64 0, i64 0), i8* %4)
%6 = load i32, i32* @stderr
%7 = call i32 (i32, i8*, ...) @fprintf(i32 %6, i8* getelementptr inbounds ([12 x i8], [12 x i8]* @.str.1, i64 0, i64 0))
%8 = load i32, i32* @stderr
%9 = call i32 (i32, i8*, ...) @fprintf(i32 %8, i8* getelementptr inbounds ([38 x i8], [38 x i8]* @.str.2, i64 0, i64 0))
%10 = load i32, i32* @stderr
%11 = call i32 (i32, i8*, ...) @fprintf(i32 %10, i8* getelementptr inbounds ([38 x i8], [38 x i8]* @.str.3, i64 0, i64 0))
%12 = load i32, i32* @stderr
%13 = call i32 (i32, i8*, ...) @fprintf(i32 %12, i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.4, i64 0, i64 0))
%14 = load i32, i32* @stderr
%15 = call i32 (i32, i8*, ...) @fprintf(i32 %14, i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str.5, i64 0, i64 0))
%16 = load i32, i32* @stderr
%17 = call i32 (i32, i8*, ...) @fprintf(i32 %16, i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str.6, i64 0, i64 0))
%18 = load i32, i32* @stderr
%19 = call i32 (i32, i8*, ...) @fprintf(i32 %18, i8* getelementptr inbounds ([64 x i8], [64 x i8]* @.str.7, i64 0, i64 0))
%20 = call i32 @exit(i32 1)
unreachable
}

LLVM IR (-O2):
@stderr = global i32 0
@.str = [50 x i8] c" Usage: %s [options] {verb} {file name(s) ... }\0A\00"
@.str.1 = [12 x i8] c" Options:\0A\00"
@.str.2 = [38 x i8] c" -kl {n}: Key length in bytes.\0A\00"
@.str.3 = [38 x i8] c" -bl {n}: Block length in bytes.\0A\00"
@.str.4 = [9 x i8] c" Verb:\0A\00"
@.str.5 = [29 x i8] c" +{key text} for encrypt\0A\00"
@.str.6 = [29 x i8] c" -{key text} for decrypt\0A\00"
@.str.7 = [64 x i8] c" check to see if file was encrypted with this program\0A\00"
define void @usage(i8* %0) {
%2 = load i32, i32* @stderr
%3 = tail call i32 (i32, i8*, ...) @fprintf(i32 %2, i8* getelementptr inbounds ([50 x i8], [50 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 ([12 x i8], [12 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 ([38 x i8], [38 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 ([38 x i8], [38 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 ([9 x i8], [9 x i8]* @.str.4, i64 0, i64 0))
%12 = load i32, i32* @stderr
%13 = tail call i32 (i32, i8*, ...) @fprintf(i32 %12, i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str.5, i64 0, i64 0))
%14 = load i32, i32* @stderr
%15 = tail call i32 (i32, i8*, ...) @fprintf(i32 %14, i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str.6, i64 0, i64 0))
%16 = load i32, i32* @stderr
%17 = tail call i32 (i32, i8*, ...) @fprintf(i32 %16, i8* getelementptr inbounds ([64 x i8], [64 x i8]* @.str.7, i64 0, i64 0))
%18 = tail call i32 @exit(i32 1)
unreachable
}