#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*/ puts(char *);
void usage() {
  puts("RSA encrypter");
  puts("usage:");
  puts("");
  puts("Encrypt");
  puts("-e  key_file  input_file  output_file");
  puts("");
  puts("Decrypt");
  puts("-d  key_file  input_file  output_file");
  puts("");
  puts("Generate Key Pair");
  puts("-g  key_length  output_key_file1  output_key_file2");
  puts("");
}


x86 assembly (clang, -O0):
<usage>:
push   %rbp
mov    %rsp,%rbp
lea    0xee5(%rip),%rdi
call   1030 <puts@plt>
lea    0xee7(%rip),%rdi
call   1030 <puts@plt>
lea    0xf82(%rip),%rdi
call   1030 <puts@plt>
lea    0xed6(%rip),%rdi
call   1030 <puts@plt>
lea    0xed2(%rip),%rdi
call   1030 <puts@plt>
lea    0xf5e(%rip),%rdi
call   1030 <puts@plt>
lea    0xee0(%rip),%rdi
call   1030 <puts@plt>
lea    0xedc(%rip),%rdi
call   1030 <puts@plt>
lea    0xf3a(%rip),%rdi
call   1030 <puts@plt>
lea    0xeea(%rip),%rdi
call   1030 <puts@plt>
lea    0xef0(%rip),%rdi
call   1030 <puts@plt>
lea    0xf16(%rip),%rdi
call   1030 <puts@plt>
pop    %rbp
ret

x86 assembly (clang, -O2):
<usage>:
push   %rax
lea    0xed8(%rip),%rdi
call   1040 <puts@plt>
lea    0xeda(%rip),%rdi
call   1040 <puts@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
lea    0xecb(%rip),%rdi
call   1040 <puts@plt>
lea    0xec7(%rip),%rdi
call   1040 <puts@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
lea    0xed7(%rip),%rdi
call   1040 <puts@plt>
lea    0xed3(%rip),%rdi
call   1040 <puts@plt>
mov    $0xa,%edi
call   1030 <putchar@plt>
lea    0xee3(%rip),%rdi
call   1040 <puts@plt>
lea    0xee9(%rip),%rdi
call   1040 <puts@plt>
mov    $0xa,%edi
pop    %rax
jmp    1030 <putchar@plt>

LLVM IR (-O0):
@.str = [14 x i8] c"RSA encrypter\00"
@.str.1 = [7 x i8] c"usage:\00"
@.str.2 = [1 x i8] zeroinitializer
@.str.3 = [8 x i8] c"Encrypt\00"
@.str.4 = [38 x i8] c"-e key_file input_file output_file\00"
@.str.5 = [8 x i8] c"Decrypt\00"
@.str.6 = [38 x i8] c"-d key_file input_file output_file\00"
@.str.7 = [18 x i8] c"Generate Key Pair\00"
@.str.8 = [51 x i8] c"-g key_length output_key_file1 output_key_file2\00"
define void @usage() {
%1 = call i32 @puts(i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str, i64 0, i64 0))
%2 = call i32 @puts(i8* getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0))
%3 = call i32 @puts(i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str.2, i64 0, i64 0))
%4 = call i32 @puts(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.3, i64 0, i64 0))
%5 = call i32 @puts(i8* getelementptr inbounds ([38 x i8], [38 x i8]* @.str.4, i64 0, i64 0))
%6 = call i32 @puts(i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str.2, i64 0, i64 0))
%7 = call i32 @puts(i8* getelementptr inbounds ([8 x i8], [8 x i8]* @.str.5, i64 0, i64 0))
%8 = call i32 @puts(i8* getelementptr inbounds ([38 x i8], [38 x i8]* @.str.6, i64 0, i64 0))
%9 = call i32 @puts(i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str.2, i64 0, i64 0))
%10 = call i32 @puts(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.7, i64 0, i64 0))
%11 = call i32 @puts(i8* getelementptr inbounds ([51 x i8], [51 x i8]* @.str.8, i64 0, i64 0))
%12 = call i32 @puts(i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str.2, i64 0, i64 0))
ret void
}

LLVM IR (-O2):
@.str = [14 x i8] c"RSA encrypter\00"
@.str.1 = [7 x i8] c"usage:\00"
@.str.3 = [8 x i8] c"Encrypt\00"
@.str.4 = [38 x i8] c"-e key_file input_file output_file\00"
@.str.5 = [8 x i8] c"Decrypt\00"
@.str.6 = [38 x i8] c"-d key_file input_file output_file\00"
@.str.7 = [18 x i8] c"Generate Key Pair\00"
@.str.8 = [51 x i8] c"-g key_length output_key_file1 output_key_file2\00"
define void @usage() {
%1 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([14 x i8], [14 x i8]* @.str, i64 0, i64 0))
%2 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([7 x i8], [7 x i8]* @.str.1, i64 0, i64 0))
%3 = tail call i32 @putchar(i32 10)
%4 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([8 x i8], [8 x i8]* @.str.3, i64 0, i64 0))
%5 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([38 x i8], [38 x i8]* @.str.4, i64 0, i64 0))
%6 = tail call i32 @putchar(i32 10)
%7 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([8 x i8], [8 x i8]* @.str.5, i64 0, i64 0))
%8 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([38 x i8], [38 x i8]* @.str.6, i64 0, i64 0))
%9 = tail call i32 @putchar(i32 10)
%10 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([18 x i8], [18 x i8]* @.str.7, i64 0, i64 0))
%11 = tail call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([51 x i8], [51 x i8]* @.str.8, i64 0, i64 0))
%12 = tail call i32 @putchar(i32 10)
ret void
}