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main.cpp
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//
// main.cpp
// LLVM
//
// Created by Hasan on 17.04.2021.
//
#include <iostream>
#include <stack>
#include <string.h>
#include <sstream>
#include <istream>
#include <fstream>
#include <algorithm>
#include <unordered_map>
#include <vector>
#include <list>
#include <set>
using namespace std;
static string outputName = "";
static int ha_oNumber = 1; //name of the temp
static int chooseNumber = 1; // in order to track choose
static int whileNumber = 1; // in order to track while
static int ifNumber = 1; // in order to track if
static bool isWhile = false;
static int bracketCheck = 0; // to track brackets
// operation tracking
void operators(const string &a, const string &b,int x, ofstream* out){
string type;
if(x == 0) type = "add";
if(x == 1) type = "sub";
if(x == 2) type = "sdiv";
if(x == 3) type = "mul";
// evaluation of the inputs in terms of being digit or a variable
if(isdigit(a[0]) && isdigit(b[0])) {
*out << "\t%ha_o" << ha_oNumber << " = " << type << " i32 " << a << ", " << b << endl;
ha_oNumber++;
}
else if(isdigit(a[0]) && !isdigit(b[0])){
if(!(b.substr(0,4)== "ha_o")){
*out << "\t%ha_o" << ha_oNumber << " = load i32* %" << b << endl;
ha_oNumber++;
*out << "\t%ha_o" << ha_oNumber << " = " << type << " i32 " << a << ", %ha_o" << ha_oNumber - 1 << endl;
ha_oNumber++;
}
else{
*out << "\t%ha_o" << ha_oNumber << " = " << type << " i32 " << a << ", %" << b << endl;
ha_oNumber++;
}
}
else if(!isdigit(a[0]) && isdigit(b[0])){
if(!(a.substr(0,4)== "ha_o")){
*out << "\t%ha_o" << ha_oNumber << " = load i32* %" << a << endl;
ha_oNumber++;
*out << "\t%ha_o" << ha_oNumber << " = " << type << " i32 %ha_o" << ha_oNumber - 1 << ", " << b << endl;
ha_oNumber++;
}
else{
*out << "\t%ha_o" << ha_oNumber << " = " << type << " i32 %" << a << ", " << b << endl;
ha_oNumber++;
}
}
else if(!isdigit(a[0]) && !isdigit(b[0])){
if(!(a.substr(0,4) == "ha_o" )){
*out << "\t%ha_o" << ha_oNumber << " = load i32* %" << a << endl;
ha_oNumber++;
}
else{
*out << "\t%ha_o" << ha_oNumber << " = add i32 %" << a << ", 0" << endl;
ha_oNumber++;
}
if(!(b.substr(0,4) == "ha_o" )){
*out << "\t%ha_o" << ha_oNumber << " = load i32* %" << b << endl;
ha_oNumber++;
}
else{
*out << "\t%ha_o" << ha_oNumber << " = add i32 %" << b << ", 0" << endl;
ha_oNumber++;
}
*out << "\t%ha_o" << ha_oNumber << " = " << type << " i32 %ha_o" << ha_oNumber - 2 << ", %ha_o" << ha_oNumber - 1 << endl;
ha_oNumber++;
}
}
// necesseary llvm intermediate code are constitued
void operators(const string &a, const string &b, const string &c, const string &d, ofstream* out) {
*out << "\t%choose" << chooseNumber << " = alloca i32" << endl;
*out << "\tstore i32 0, i32* %choose" << chooseNumber << endl;
*out << "\tbr label %choose" << chooseNumber << "cond1" << endl << endl << "choose" << chooseNumber << "cond1:" << endl;
if(!isdigit(d[0])) {
if(!(d.substr(0,4)== "ha_o")){
*out << "\t%ha_o" << ha_oNumber << " = load i32* %" << d << endl;
ha_oNumber++;
*out << "\t%ha_o" << ha_oNumber << " = icmp eq i32 %ha_o" << ha_oNumber - 1 << ", 0" << endl;
ha_oNumber++;
}
else{
*out << "\t%ha_o" << ha_oNumber << " = icmp eq i32 %" << d << ", 0" << endl;
ha_oNumber++;
}
*out << "\tbr i1 %ha_o" << ha_oNumber - 1 << ", label %choose" << chooseNumber << "body1, label %choose" << chooseNumber << "cond2" << endl << endl;
*out << "choose" << chooseNumber << "cond2:" << endl;
if(!(d.substr(0,4)== "ha_o")){
*out << "\t%ha_o" << ha_oNumber << " = load i32* %" << d << endl;
ha_oNumber++;
*out << "\t%ha_o" << ha_oNumber << " = icmp sgt i32 %ha_o" << ha_oNumber - 1 << ", 0" << endl;
ha_oNumber++;
}
else{
*out << "\t%ha_o" << ha_oNumber << " = icmp sgt i32 %" << d << ", 0" << endl;
ha_oNumber++;
}
*out << "\tbr i1 %ha_o" << ha_oNumber - 1 << ", label %choose" << chooseNumber << "body2, label %choose" << chooseNumber << "body3" << endl << endl;
}
else{
*out << "\t%ha_o" << ha_oNumber << " = icmp eq i32 " << d << ", 0" << endl;
ha_oNumber++;
*out << "\tbr i1 %ha_o" << ha_oNumber - 1 << ", label %choose" << chooseNumber << "body1, label %choose" << chooseNumber << "cond2" << endl << endl;
*out << "choose" << chooseNumber << "cond2:" << endl;
*out << "\t%ha_o" << ha_oNumber << " = icmp sgt i32 " << d << ", 0" << endl;
ha_oNumber++;
*out << "\tbr i1 %ha_o" << ha_oNumber - 1 << ", label %choose" << chooseNumber << "body2, label %choose" << chooseNumber << "body3" << endl << endl;
}
*out << "choose" << chooseNumber << "body1:" << endl;
if(!isdigit(c[0])){
if(!(c.substr(0,4)== "ha_o")){
*out << "\t%ha_o" << ha_oNumber << " = load i32* %" << c << endl;
ha_oNumber++;
*out << "\tstore i32 %ha_o" << ha_oNumber - 1 << ", i32* %choose" << chooseNumber << endl;
}
else{
*out << "\tstore i32 %" << c << ", i32* %choose" << chooseNumber << endl;
}
}
else{
*out << "\t%ha_o" << ha_oNumber << " = add i32 " << c << ", 0" << endl;
ha_oNumber++;
*out << "\tstore i32 %ha_o" << ha_oNumber-1<< ", i32* %choose" << chooseNumber << endl;
}
*out << "\tbr label %choose" << chooseNumber << "end" << endl << endl;
*out << "choose" << chooseNumber << "body2:" << endl;
if(!isdigit(b[0])){
if(!(b.substr(0,4)== "ha_o")){
*out << "\t%ha_o" << ha_oNumber << " = load i32* %" << b << endl;
ha_oNumber++;
*out << "\tstore i32 %ha_o" << ha_oNumber - 1 << ", i32* %choose" << chooseNumber << endl;
}
else{
*out << "\tstore i32 %" << b << ", i32* %choose" << chooseNumber << endl;
}
}
else{
*out << "\t%ha_o" << ha_oNumber << " = add i32 " << b << ", 0" << endl;
ha_oNumber++;
*out << "\tstore i32 %ha_o" << ha_oNumber-1 << ", i32* %choose" << chooseNumber << endl;
}
*out << "\tbr label %choose" << chooseNumber << "end" << endl << endl;
*out << "choose" << chooseNumber << "body3:" << endl;
if(!isdigit(a[0])){
if(!(a.substr(0,4)== "ha_o")){
*out << "\t%ha_o" << ha_oNumber << " = load i32* %" << a << endl;
ha_oNumber++;
*out << "\tstore i32 %ha_o" << ha_oNumber - 1 << ", i32* %choose" << chooseNumber << endl;
}
else{
*out << "\tstore i32 %" <<a << ", i32* %choose" << chooseNumber << endl;
}
}
else{
*out << "\t%ha_o" << ha_oNumber << " = add i32 " << a << ", 0" << endl;
ha_oNumber++;
*out << "\tstore i32 %ha_o" << ha_oNumber-1 << ", i32* %choose" << chooseNumber << endl;
}
*out << "\tbr label %choose" << chooseNumber << "end" << endl << endl;
*out << "choose" << chooseNumber << "end:" << endl;
*out << "\t%ha_o" << ha_oNumber << " = load i32* %choose" << chooseNumber << endl;
ha_oNumber++;
chooseNumber++;
}
// used for turning infix to postfix so that we can process operations in a quiet decent way
int prec(char c)
{
if (c == '*' || c == '/')
return 2;
else if (c == '+' || c == '-')
return 1;
else
return -1;
}
// The main function to convert infix expression
//to postfix expression
string infixToPostfix(const string& s)
{
std::stack<char> st;
st.push('N');
long l = s.length();
string ns;
for (int i = 0; i < l; i++)
{
if (s.substr(i, 7) == "choose(")
{
int Begin = i + 7;
int Close = i + 6;
int strNum = 0;
int counter = 1;
string exp1 = "";
string exp2 = "";
string exp3 = "";
string exp4 = "";
string strarray[4];
while (counter > 0)
{
char c = s[++Close];
if (c == '(')
{
counter++;
}
else if (c == ')')
{
counter--;
if (counter == 0)
{
exp1 = s.substr(Begin, Close - Begin);
i = Close;
ns += infixToPostfix(exp1);
ns += " choose ";
strarray[3] = exp1;
strNum = 0;
}
}
else if (c == ',' && counter == 1)
{
exp1 = s.substr(Begin, Close - Begin);
Begin = Close + 1;
strarray[strNum] = exp1;
ns += infixToPostfix(exp1);
strNum++;
}
}
}
bool InHere = false;
while (s[i] != '+' && s[i] != '/' && s[i] != '-' && s[i] != '*' && s[i] != ')' && s[i] != '(' && s[i] != ' ' && s[i] != '^')
{
ns += s[i];
i++;
if (i == l)
{
ns += ' ';
InHere = false;
break;
}
InHere = true;
}
if (InHere)
{
ns += ' ';
}
if (s[i] == '(')
st.push('(');
else if (s[i] == ')')
{
while (st.top() != 'N' && st.top() != '(')
{
char c = st.top();
st.pop();
ns += c;
ns += ' ';
}
if (st.top() == '(')
{
//char c = st.top();
st.pop();
}
}
// (5 + 2) *3 ns 5 2 + 3 * st N *
else if (s[i] == ' ')
{
continue;
}
//If an operator is scanned
else
{
while (st.top() != 'N' && prec(s[i]) <=
prec(st.top()))
{
char c = st.top();
st.pop();
ns += c;
ns += ' ';
}
st.push(s[i]);
}
}
// Pop all the remaining elements from the stack
while (st.top() != 'N')
{
char c = st.top();
st.pop();
ns += c;
ns += ' ';
}
return ns;
}
// we obtain the globally accesiable variables
void expressionChecker(string expr, vector<string>* vector){
list<string> lst;
stringstream iss(infixToPostfix(expr));
while (iss >> expr){
if((int)expr[0]){
lst.push_back(expr);
}
}
for(auto a: lst) {
if(a != "+" && a != "-" && a != "*" && a != "/" && a != "choose" && !isdigit(a[0])) {
bool isContain = false;
for(int i = 0; i < vector->size(); i++) {
if(vector->at(i) == a) {
isContain = true;
}
}
if(!isContain) vector->push_back(a);
}
}
}
// implement the necessary operations and manipulate the postfix notation for further operations
void ha_oCalculator(string exp, ofstream* out,string variable){
//string exp = "a + b * c * choose(choose(k, l, m + q * w, n), x, y, z)";
//string exp = "choose(a,b,c,d)";
//string exp = "a+b + c * choose(k,l,m,n)";
string word;
list<string> lst;
//*out << infixToPostfix(exp) << endl;
stringstream iss(infixToPostfix(exp));
while (iss >> word)
{
if ((int)word[0])
{
lst.push_back(word);
}
}
list<string>::iterator it;
list<string>::iterator it2;
it = lst.begin();
for (; it != lst.end(); it++)
{
if (*it == "*")
{
it--;
string a = *it;
it--;
string b = *it;
it2 = it;
it++;
it++;
lst.erase(it2,++it);
operators(b, a, 3 , out);
lst.insert(it, "ha_o" + to_string(ha_oNumber - 1));
it--;
}
else if(*it == "+") {
it--;
string a = *it;
it--;
string b = *it;
it2 = it;
it++;
it++;
lst.erase(it2,++it);
operators(b, a, 0 , out);
lst.insert(it, "ha_o" + to_string(ha_oNumber - 1));
it--;
}
else if(*it == "-") {
it--;
string a = *it;
it--;
string b = *it;
it2 = it;
it++;
it++;
lst.erase(it2,++it);
operators(b, a, 1 , out);
lst.insert(it, "ha_o" + to_string(ha_oNumber - 1));
it--;
}
else if(*it == "/"){
it--;
string a = *it;
it--;
string b = *it;
it2 = it;
it++;
it++;
lst.erase(it2,++it);
operators(b, a, 2, out);
lst.insert(it, "ha_o" + to_string(ha_oNumber - 1));
it--;
}
else if(*it == "choose"){
it--;
string a = *it;
it--;
string b = *it;
it--;
string c = *it;
it--;
string d = *it;
it2 = it;
it++; it++; it++; it++;
lst.erase(it2, ++it);
operators(a, b, c, d, out);
lst.insert(it, "ha_o" + to_string(ha_oNumber - 1));
it--;
}
if(lst.size()==1 && variable != "print" && variable != "ifcondit" ){
if(!isdigit(lst.front()[0])){
if(lst.front().substr(0,4)== "ha_o"){
*out << "\tstore i32 %" << lst.front() << ", i32* %" << variable << endl ;
break;
}
else{
*out << "\t%ha_o" << ha_oNumber << " = load i32* %" << lst.front() << endl;
ha_oNumber++;
*out << "\tstore i32 %ha_o" << ha_oNumber-1 << ", i32* %"<< variable << endl ;
break;
}
}
else{
*out << "\tstore i32 " << lst.front() << ", i32* %" << variable << endl ;
break;
}
}
}
}
// to check wheter a variable is apporopriate to declare
bool varCheck(string var) {
if(isdigit(var[0])) return false;
else if(var == "if" || var == "while" || var.find("+") != -1 || var.find("*") != -1
|| var.find("-") != -1 || var.find("/") != -1 || var.find("choose(") != -1 || var.find("(") != -1 || var.find(")") != -1) return false;
else return true;
}
// to print error to the Intermediate code
void syntaxError(int i) {
ofstream output(outputName);
output << "; ModuleID = 'mylang2ir'\n"
"declare i32 @printf(i8*, ...)\n"
"@print.str = constant [23 x i8] c\"Line %d: syntax error\\0A\\00\"" << endl << endl;
output << "define i32 @main() {" << endl;
output << "\tcall i32 (i8*, ...)* @printf(i8* getelementptr ([23 x i8]* @print.str, i32 0, i32 0), i32 " << i << " )"
<< endl;
output << "\tret i32 0" << endl << "}";
}
// to check whether an expression is suitable to proccess else throw syntax error
static bool exprCheck(string expr) {
stringstream s1(expr);
string currentEl;
list<string> elements;
while(s1 >> currentEl) {
if ((int) currentEl[0] != 0) elements.push_back(currentEl);
}
if(elements.size() == 1){
if(isdigit(elements.front()[0])){
for(int i = 0; i < elements.front().length(); i++) {
if(!isdigit(elements.front().at(i))){
return false;
}
else return true;
}
}
else if(!varCheck(elements.front())) return false;
else return true;
}
list<string>::iterator it = elements.begin();
list<string>::iterator it2 = elements.begin();
for (; it != elements.end(); it++){
if(*it == "+" || *it == "-" || *it == "*" || *it == "/") {
if(it == elements.begin()) return false;
it--;
string a = *it;
if(it == elements.begin()) return false;
it--;
string b = *it;
it2 = it;
if(a == "checked");
else if(!isdigit(a[0]) && !varCheck(a)) return false;
else if(a.find("+") != -1 || a.find("-") != -1 || a.find("*") != -1 || a.find("/") != -1) return false;
else if(isdigit(a[0])) {
for(int i = 0; i < a.length(); i++) {
if(!isdigit(a.at(i))) return false;
}
}
if(b == "checked");
else if(!isdigit(b[0]) && !varCheck(b)) return false;
else if(b.find("+") != -1 || b.find("-") != -1 || b.find("*") != -1 || b.find("/") != -1) return false;
else if(isdigit(b[0])) {
for(int i = 0; i < b.length(); i++) {
if(!isdigit(b.at(i))) return false;
}
}
it++;
it++;
elements.erase(it2,++it);
elements.insert(it, "checked");
it--;
}
if(*it == "choose"){
if(it == elements.begin()) return false;
it--;
string a = *it;
if(it == elements.begin()) return false;
it--;
string b = *it;
if(it == elements.begin()) return false;
it--;
string c = *it;
if(it == elements.begin()) return false;
it--;
string d = *it;
it2 = it;
if(a == "checked");
else if(!isdigit(a[0]) && !varCheck(a)) return false;
else if(a.find("+") != -1 || a.find("-") != -1 || a.find("*") != -1 || a.find("/") != -1) return false;
else if(isdigit(a[0])) {
for(int i = 0; i < a.length(); i++) {
if(!isdigit(a.at(i))) return false;
}
}
if(b == "checked");
else if(!isdigit(b[0]) && !varCheck(b)) return false;
else if(b.find("+") != -1 || b.find("-") != -1 || b.find("*") != -1 || b.find("/") != -1) return false;
else if(isdigit(b[0])) {
for(int i = 0; i < b.length(); i++) {
if(!isdigit(b.at(i))) return false;
}
}
if(c == "checked");
else if(!isdigit(c[0]) && !varCheck(c)) return false;
else if(c.find("+") != -1 || c.find("-") != -1 || c.find("*") != -1 || c.find("/") != -1) return false;
else if(isdigit(c[0])) {
for(int i = 0; i < c.length(); i++) {
if(!isdigit(c.at(i))) return false;
}
}
if(d == "checked");
else if(!isdigit(d[0]) && !varCheck(d)) return false;
else if(d.find("+") != -1 || d.find("-") != -1 || d.find("*") != -1 || d.find("/") != -1) return false;
else if(isdigit(d[0])) {
for(int i = 0; i < d.length(); i++) {
if(!isdigit(d.at(i))) return false;
}
}
it++; it++; it++; it++;
elements.erase(it2, ++it);
elements.insert(it, "checked");
it--;
}
}
if(elements.size() == 1 && elements.front().find("checked") != -1) return true;
else return false;
}
// to check whether the parantehesis match
bool paranthesisCheck(string exp) {
int open = 0;
for(int i = 0; i < exp.length(); i++){
if(exp.at(i) == '(') open++;
if(exp.at(i) == ')') open--;
if(open < 0) return false;
}
return true;
}
int main(int argc, const char *argv[])
{
outputName = argv[1];
outputName = outputName.substr(0, outputName.length() - 2) + "ll";
bool syntax = true;
ifstream syntaxInput(argv[1]);
string syntaxLiner;
vector<string> syntaxLines;
// in this while, we try to detect syntax errors.
while(syntaxInput.peek() != EOF) {
getline(syntaxInput, syntaxLiner);
if(syntaxLiner.find("#") != -1) {
syntaxLiner = syntaxLiner.substr(0, syntaxLiner.find("#"));
}
syntaxLines.push_back(syntaxLiner);
}
for(int i = 0; i < syntaxLines.size(); i++) {
string currentLine = syntaxLines.at(i);
stringstream s1(currentLine);
if(currentLine.find("}") != -1) {
stringstream s7(currentLine);
string x;
list<string> bracketer;
while(s7 >> x) {
if((int) x[0]) bracketer.push_back(x);
}
if(bracketer.size() != 1){
syntax = false;
syntaxError(i);
break;
}
else{
bracketCheck--;
if (bracketCheck < 0) {
syntax = false;
syntaxError(i);
break;
}
}
}
else if(currentLine.find("=") != -1) {
string var = currentLine.substr(0, currentLine.find("="));
string expr = currentLine.substr(currentLine.find("=") + 1);
stringstream s1(var);
s1 >> var;
if(!varCheck(var)){
syntax = false;
syntaxError(i);
break;
};
if(paranthesisCheck(expr)) {
if (!exprCheck(infixToPostfix(expr))) {
syntax = false;
syntaxError(i);
break;
}
}
else{
syntax = false;
syntaxError(i);
break;
}
}
else if(currentLine.find("print") != -1) {
string expr = currentLine.substr(currentLine.find("print(") + 6,
currentLine.find_last_of(")") - 6 - currentLine.find("print"));
if (expr.find("+") != -1 || expr.find("-") != -1 || expr.find("*") != -1 || expr.find("/") != -1 || expr.find("choose(") != -1) {
if (paranthesisCheck(expr)) {
if (!exprCheck(infixToPostfix(expr))) {
syntax = false;
syntaxError(i);
break;
}
} else {
syntax = false;
syntaxError(i);
break;
}
}
else{
int index0;
int index1;
if(expr.find('(' )!= -1) {
index0= expr.find_last_of("(");
index1 = expr.find(")");
expr = expr.substr(index0+1,index1-index0-1);
}
if(isdigit(expr[0])) {
for(int i = 0; i < expr.length(); i++) {
if(!isdigit(expr.at(i))){
syntax = false;
syntaxError(i);
break;
}
}
}
else{
if(!varCheck(expr)){
syntax = false;
syntaxError(i);
break;
}
}
}
}
else if(currentLine.find("if") != -1 || currentLine.find("while") != -1){
int index = 0;
int length = 5;
int opening = currentLine.find("(");
int closing = currentLine.find_last_of(")");
int bracket = currentLine.find("{");;
if(currentLine.find("if") != -1) {
index = currentLine.find("if");
length = 2;
}
else index = currentLine.find("while");
if(index + length > opening || opening > closing || closing > bracket) {
syntax = false;
syntaxError(i);
break;
}
string expr = currentLine.substr(opening + 1, closing - opening - 1);
if (expr.find("+") != -1 || expr.find("-") != -1 || expr.find("*") != -1 || expr.find("/") != -1 || expr.find("choose(") != -1) {
if (!paranthesisCheck(expr)) {
syntax = false;
syntaxError(i);
break;
} else {
if (!exprCheck(infixToPostfix(expr))) {
syntax = false;
syntaxError(i);
break;
}
}
}
else{
int index0;
int index1;
if(expr.find('(' )!= -1) {
index0= expr.find_last_of("(");
index1 = expr.find(")");
expr = expr.substr(index0+1,index1-index0-1);
}
if(isdigit(expr[0])) {
for(int i = 0; i < expr.length(); i++) {
if(!isdigit(expr.at(i))){
syntax = false;
syntaxError(i);
break;
}
}
}
else{
if(!varCheck(expr)){
syntax = false;
syntaxError(i);
break;
}
}
}
bracketCheck++;
if(bracketCheck > 1) {
syntax = false;
syntaxError(i);
break;
}
}
else {
stringstream s189(currentLine);
string q;
s189 >> q;
if((int)q[0]) {
syntax = false;
syntaxError(i);
break;
}
}
if(i == syntaxLines.size() - 1) {
if(bracketCheck == 1) {
syntaxError(i);
syntax = false;
}
}
}
// if there is not a syntax error, we procceed to the next while loop
if(syntax) {
vector<string> realReal;
ifstream input(argv[1]);
string x;
ofstream output(outputName);
// in this while we allocate memory for all globally accessiable variables
while (input.peek() != EOF) {
getline(input, x);
int indexOfComment = x.find("#");
if (indexOfComment != -1) {
x = x.substr(0, indexOfComment);
}
stringstream s(x);
int index = x.find("=");
if (index != -1) {
string var = x.substr(0, index);
stringstream s1(var);
while (s1 >> var) {
if ((int) var[0]) {
bool isContain = false;
for (int i = 0; i < realReal.size(); i++) {
if (realReal.at(i) == var) {
isContain = true;
}
}
if (!isContain) realReal.push_back(var);
}
}
string expr = x.substr(index + 1);
expressionChecker(expr, &realReal);
}
else if (x.find("while") != -1) {
int indexOfWhile = x.find("while");
int last = x.find_last_of(")");
int first = x.find("(");
string expr = x.substr(first + 1, last - first - 1);
expressionChecker(expr, &realReal);
}
else if (x.find("if") != -1) {
int indexOfIf = x.find("if");
int last = x.find_last_of(")");
int first = x.find("(");
string expr = x.substr(first + 1, last - first - 1);
expressionChecker(expr, &realReal);
}
else if (x.find("print") != -1) {
int indexOfPrint = x.find("print");
int last = x.find_last_of(")");
int first = x.find("(");
string expr = x.substr(first+1, last-first-1);
expressionChecker(expr, &realReal);
}
}
output << "; ModuleID = 'mylang2ir'\n"
"declare i32 @printf(i8*, ...)\n"
"@print.str = constant [4 x i8] c\"%d\\0A\\00\"" << endl << endl;
output << "define i32 @main() {" << endl;
for (auto a : realReal) {
output << "\t" << "%" << a << " = alloca i32" << endl;
}
output << endl;
for (auto a : realReal) {
output << "\tstore i32 0, i32* %" << a << endl;
}
output << endl;
ifstream input2(argv[1]);
string line;
// in this while loop we process the file and turn it into an intermediate code with the help of operations function
while (input2.peek() != EOF) {
getline(input2, line);
int indexOfComment = line.find("#");
if (indexOfComment != -1) {
line = line.substr(0, indexOfComment);
}
stringstream s2(line);
int closed = line.find("}");
if (closed != -1) {
if (!isWhile) {
output << "\tbr label %ifend" << ifNumber << endl;
output << "ifend" << ifNumber << ":" << endl;
ifNumber++;
} else {
output << "\tbr label %whcond" << whileNumber << endl;
output << "whend" << whileNumber << ":" << endl;
whileNumber++;
}
}
else if (line.find("=") != -1) {
int index = line.find("=");
string var = line.substr(0, index);
stringstream s2(var);
// string var1=var;
while (s2 >> var) {
if ((int) var[0]) {
ha_oCalculator(line.substr(index + 1), &output, var);
break;
}
}
}
else if (line.find("if") != -1) {
int indexOfIf = line.find("if");
isWhile = false;
int last = line.find_last_of(")");
string expr = line.substr(indexOfIf + 3, last - 3 - indexOfIf);
if (expr.find("+") != -1 || expr.find("-") != -1 || expr.find("*") != -1 || expr.find("/") != -1 ||
expr.find("choose") != -1) {
output << "\tbr label %ifcond" << ifNumber << endl << endl;
output << "ifcond" << ifNumber << ":" << endl;
ha_oCalculator(expr, &output, "ifcondit");
output << "\t%ha_o" << ha_oNumber << " = icmp ne i32 %ha_o" << ha_oNumber - 1 << ", 0" << endl;
output << "\tbr i1 %ha_o" << ha_oNumber << ", label %ifbody" << ifNumber << ", label %ifend"
<< ifNumber << endl;
output << "ifbody" << ifNumber << ":" << endl;
ha_oNumber++;
} else {
if (expr.find("(") != 1) {
int first = expr.find_last_of("(");
int second = expr.find_last_of(")");
expr = expr.substr(first + 1, second - first - 1);
}
if (isdigit(expr[0])) {
output << "\tbr label %ifcond" << ifNumber << endl << endl;
output << "ifcond" << ifNumber << ":" << endl;
output << "\t%ha_o" << ha_oNumber << " = icmp ne i32 " << expr << ", 0" << endl;
output << "\tbr i1 %ha_o" << ha_oNumber << ", label %ifbody" << ifNumber << ", label %ifend"
<< ifNumber << endl;
output << "ifbody" << ifNumber << ":" << endl;
ha_oNumber++;
} else {
output << "\tbr label %ifcond" << ifNumber << endl << endl;
output << "ifcond" << ifNumber << ":" << endl;