#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*/ decrypt(char *, char *);
int /*<<< orphan*/ encrypt(char *, char *);
int /*<<< orphan*/ printf(char *, ...);
int /*<<< orphan*/ scanf(char *, char *);
int main() {
  char msg[100], key[10];
  printf("Enter your message (string):");
  scanf("%s", msg);
  printf("Enter your key (string):");
  scanf("%s", key);
  printf("Encrypted Version\n");
  encrypt(msg, key);
  printf("%s", msg);
  printf("\nDecrypt Version\n");
  decrypt(msg, key);
  printf("%s", msg);
  return 0;
}


x86 assembly (clang, -O0):
<main>:
push   %rbp
mov    %rsp,%rbp
sub    $0x80,%rsp
movl   $0x0,-0x4(%rbp)
lea    0xea7(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    -0x70(%rbp),%rsi
lea    0xeb2(%rip),%rdi
call   1060 <scanf@plt>
lea    0xea9(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    -0x7a(%rbp),%rsi
lea    0xe94(%rip),%rdi
call   1060 <scanf@plt>
lea    0xea4(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    -0x70(%rbp),%rdi
lea    -0x7a(%rbp),%rsi
call   1050 <encrypt@plt>
lea    -0x70(%rbp),%rsi
lea    0xe69(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    0xe8a(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
lea    -0x70(%rbp),%rdi
lea    -0x7a(%rbp),%rsi
call   1030 <decrypt@plt>
lea    -0x70(%rbp),%rsi
lea    0xe3c(%rip),%rdi
mov    $0x0,%al
call   1040 <printf@plt>
xor    %eax,%eax
add    $0x80,%rsp
pop    %rbp
ret

x86 assembly (clang, -O2):
<main>:
push   %r15
push   %r14
push   %rbx
sub    $0x80,%rsp
lea    0xe9d(%rip),%rdi
xor    %eax,%eax
call   1050 <printf@plt>
lea    0xeac(%rip),%r14
lea    0x10(%rsp),%rbx
mov    %r14,%rdi
mov    %rbx,%rsi
call   1070 <scanf@plt>
lea    0xe98(%rip),%rdi
xor    %eax,%eax
call   1050 <printf@plt>
lea    0x6(%rsp),%r15
mov    %r14,%rdi
mov    %r15,%rsi
call   1070 <scanf@plt>
lea    0xe93(%rip),%rdi
call   1040 <puts@plt>
mov    %rbx,%rdi
mov    %r15,%rsi
call   1060 <encrypt@plt>
mov    %r14,%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1050 <printf@plt>
lea    0xe81(%rip),%rdi
call   1040 <puts@plt>
mov    %rbx,%rdi
mov    %r15,%rsi
call   1030 <decrypt@plt>
mov    %r14,%rdi
mov    %rbx,%rsi
xor    %eax,%eax
call   1050 <printf@plt>
xor    %eax,%eax
add    $0x80,%rsp
pop    %rbx
pop    %r14
pop    %r15
ret

LLVM IR (-O0):
@.str = [29 x i8] c"Enter your message (string):\00"
@.str.1 = [3 x i8] c"%s\00"
@.str.2 = [25 x i8] c"Enter your key (string):\00"
@.str.3 = [19 x i8] c"Encrypted Version\0A\00"
@.str.4 = [18 x i8] c"\0ADecrypt Version\0A\00"
define i32 @main() {
%1 = alloca i32
%2 = alloca [100 x i8]
%3 = alloca [10 x i8]
store i32 0, i32* %1
%4 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([29 x i8], [29 x i8]* @.str, i64 0, i64 0))
%5 = getelementptr inbounds [100 x i8], [100 x i8]* %2, i64 0, i64 0
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i8* %5)
%7 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([25 x i8], [25 x i8]* @.str.2, i64 0, i64 0))
%8 = getelementptr inbounds [10 x i8], [10 x i8]* %3, i64 0, i64 0
%9 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i8* %8)
%10 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([19 x i8], [19 x i8]* @.str.3, i64 0, i64 0))
%11 = getelementptr inbounds [100 x i8], [100 x i8]* %2, i64 0, i64 0
%12 = getelementptr inbounds [10 x i8], [10 x i8]* %3, i64 0, i64 0
%13 = call i32 @encrypt(i8* %11, i8* %12)
%14 = getelementptr inbounds [100 x i8], [100 x i8]* %2, i64 0, i64 0
%15 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i8* %14)
%16 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([18 x i8], [18 x i8]* @.str.4, i64 0, i64 0))
%17 = getelementptr inbounds [100 x i8], [100 x i8]* %2, i64 0, i64 0
%18 = getelementptr inbounds [10 x i8], [10 x i8]* %3, i64 0, i64 0
%19 = call i32 @decrypt(i8* %17, i8* %18)
%20 = getelementptr inbounds [100 x i8], [100 x i8]* %2, i64 0, i64 0
%21 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i8* %20)
ret i32 0
}

LLVM IR (-O2):
@.str = [29 x i8] c"Enter your message (string):\00"
@.str.1 = [3 x i8] c"%s\00"
@.str.2 = [25 x i8] c"Enter your key (string):\00"
@str = [18 x i8] c"Encrypted Version\00"
@str.5 = [17 x i8] c"\0ADecrypt Version\00"
define i32 @main() {
%1 = alloca [100 x i8]
%2 = alloca [10 x i8]
%3 = getelementptr inbounds [100 x i8], [100 x i8]* %1, i64 0, i64 0
%4 = getelementptr inbounds [10 x i8], [10 x i8]* %2, i64 0, i64 0
%5 = tail call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([29 x i8], [29 x i8]* @.str, i64 0, i64 0))
%6 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i8* %3)
%7 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([25 x i8], [25 x i8]* @.str.2, i64 0, i64 0))
%8 = call i32 @scanf(i8* getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i8* %4)
%9 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([18 x i8], [18 x i8]* @str, i64 0, i64 0))
%10 = call i32 @encrypt(i8* %3, i8* %4)
%11 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i8* %3)
%12 = call i32 @puts(i8* dereferenceable(1) getelementptr inbounds ([17 x i8], [17 x i8]* @str.5, i64 0, i64 0))
%13 = call i32 @decrypt(i8* %3, i8* %4)
%14 = call i32 (i8*, ...) @printf(i8* dereferenceable(1) getelementptr inbounds ([3 x i8], [3 x i8]* @.str.1, i64 0, i64 0), i8* %3)
ret i32 0
}