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ir.cpp
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ir.cpp
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/****************************************************/
/*File: ir.cpp */
/*This file is used to define the functions that */
/*generate the target Eeyore representations. */
/*Yueyang (Jason) Pan */
/****************************************************/
#include "ir.h"
#include "source.tab.hpp"
#include <sstream>
#define __DEBUG_IR__
const std::string kResult3Reg = "t4";
const std::string kResult2Reg = "t3";
const std::string kResultReg = "t2";
const std::string kTempReg = "t1";
const std::string kArrReg = "t0";
std::size_t LabelVal::_next_id = 0;
std::size_t VarSlotVal::_next_id = 0;
ValPtr FunctionDef::AddSlot() {return std::make_shared<SlotVal>(_slot_num++, _cur_offset);}
ValPtr FunctionDef::AddVarSlot(bool is_addr) {return std::make_shared<VarSlotVal>(_cur_offset, _func_name == "00_GLOBAL", is_addr);}
void FunctionDef::setBasicBlocks(){
std::size_t tmp_inst_num = _insts.size();
std::size_t next_basic_block_line = tmp_inst_num;
std::unordered_map<std::size_t, std::size_t> label_line_map;
std::unordered_map<std::size_t, std::size_t> line_line_map;
std::vector<std::size_t> block_start_lines;
//First reverse scan all the instructions and store the map between label and the next basic block.
//Labels are not included in the basic block
for(auto inst = _insts.rbegin() ; inst != _insts.rend(); inst++)
{
tmp_inst_num--;
if ((*inst)->_inst_type == 6){
auto tmp = std::dynamic_pointer_cast<LabelInst>(*inst);
auto tmp_label = std::dynamic_pointer_cast<LabelVal>(tmp->getLabel());
label_line_map.insert(std::pair<std::size_t, std::size_t>(tmp_label->getId(), next_basic_block_line));
line_line_map.insert(std::pair<std::size_t, std::size_t>(tmp_inst_num, next_basic_block_line));
}
else{
next_basic_block_line = tmp_inst_num;
}
}
assert(tmp_inst_num == 0);
tmp_inst_num =0;
bool initial = 1;
for(const auto &inst: _insts){
if(inst->_inst_type == 3 || inst->_inst_type ==5){
std::shared_ptr<LabelVal> tmp_label;
if(inst->_inst_type == 3){
auto tmp = std::dynamic_pointer_cast<BranchInst>(inst);
tmp_label = std::dynamic_pointer_cast<LabelVal>(tmp->getLabel());
}
if(inst->_inst_type == 5){
auto tmp = std::dynamic_pointer_cast<JumpInst>(inst);
tmp_label = std::dynamic_pointer_cast<LabelVal>(tmp->getLabel());
}
auto jump_block_line = label_line_map.find(tmp_label->getId())->second;
if (instNum_block_map.find(jump_block_line) == instNum_block_map.end()){
block_start_lines.push_back(jump_block_line);
instNum_block_map.insert(std::pair<std::size_t, BasicBlockPtr>(jump_block_line, std::make_shared<BasicBlock>()));
}
if (tmp_inst_num < _insts.size() - 1){
if(_insts.at(tmp_inst_num + 1)->_inst_type ==6){
auto tmp_next_block_line = line_line_map.find(tmp_inst_num + 1)->second;
if (instNum_block_map.find(tmp_next_block_line) == instNum_block_map.end()){
block_start_lines.push_back(tmp_next_block_line);
instNum_block_map.insert(std::pair<std::size_t, BasicBlockPtr>(tmp_next_block_line, std::make_shared<BasicBlock>()));
}
}
else{
if (instNum_block_map.find(tmp_inst_num + 1) == instNum_block_map.end()){
block_start_lines.push_back(tmp_inst_num + 1);
instNum_block_map.insert(std::pair<std::size_t, BasicBlockPtr>(tmp_inst_num + 1, std::make_shared<BasicBlock>()));
}
}
}
}
else{
if(inst->_inst_type !=6 && initial){
initial = 0;
if (instNum_block_map.find(tmp_inst_num) == instNum_block_map.end()){
block_start_lines.push_back(tmp_inst_num);
instNum_block_map.insert(std::pair<std::size_t, BasicBlockPtr>(tmp_inst_num, std::make_shared<BasicBlock>()));
}
}
}
tmp_inst_num ++;
}
for (auto iter= instNum_block_map.begin(); iter != instNum_block_map.end();){
auto tmp = (*iter).second;
tmp->start_inst = (*iter).first;
iter ++;
std::size_t outboundline = _insts.size();
if(iter != instNum_block_map.end()){
tmp->end_inst = (*iter).first - 1;
outboundline = (*iter).first;
}
else{
tmp->end_inst = _insts.size() - 1;
}
for(auto i = tmp->end_inst; i >= tmp->start_inst; i--){
if (_insts.at(i)->_inst_type == 3){
auto tmp_inst = std::dynamic_pointer_cast<BranchInst>(_insts.at(i));
auto tmp_label = std::dynamic_pointer_cast<LabelVal>(tmp_inst->getLabel());
auto jump_block_line = label_line_map.find(tmp_label->getId())->second;
auto target = instNum_block_map.find(jump_block_line)->second;
tmp->OutBlocks.push_back(target);
target->InBlocks.push_back(tmp);
if (outboundline < _insts.size()){
tmp->OutBlocks.push_back((*iter).second);
(*iter).second->InBlocks.push_back(tmp);
}
break;
}
if (_insts.at(i)->_inst_type == 5){
auto tmp_inst = std::dynamic_pointer_cast<JumpInst>(_insts.at(i));
auto tmp_label = std::dynamic_pointer_cast<LabelVal>(tmp_inst->getLabel());
auto jump_block_line = label_line_map.find(tmp_label->getId())->second;
auto target = instNum_block_map.find(jump_block_line)->second;
tmp->OutBlocks.push_back(target);
target->InBlocks.push_back(tmp);
break;
}
}
}
}
void FunctionDef::analyzeActiveVariables(){
for(auto iter = instNum_block_map.begin(); iter != instNum_block_map.end(); iter ++){
std::size_t start_inst = (*iter).second->start_inst;
std::size_t end_inst = (*iter).second->end_inst;
for (std::size_t i = start_inst; i<= end_inst ;i ++){
auto inst = _insts.at(i);
switch (inst->_inst_type)
{
case 2:
/* code */
break;
case 3:
/* code */
break;
case 4:
/* code */
break;
case 5:
/* code */
break;
case 6:
/* code */
break;
case 7:
/* code */
break;
case 8:
/* code */
break;
case 9:
/* code */
break;
case 10:
/* code */
break;
case 11:
/* code */
break;
default:
break;
}
}
}
}
void FunctionDef::Dump_Tigger(std::ostream &os, std::stringstream& global_inst) const{
os<<"f_"<<_func_name<<" ["<<_num_args<<"] ["<<(_cur_offset + 4*8)/4 <<"]"<<std::endl;
if(_func_name == "main"){
os<<global_inst.str();
}
for (std::size_t i = 0; i < _num_args; ++i) {
os << "store a"<<i<<" "<<i<<std::endl;
}
for (const auto &inst: _insts) inst->Dump_Tigger(os, *this);
os<<"end f_"<<_func_name<<std::endl;
}
void FunctionDef::Dump_Tigger_GLOB(std::ostream &os, std::stringstream& global_inst) const{
for (const auto &decl : _decl_insts) decl->Dump_Tigger(os, *this);
for (const auto &inst: _insts) {
auto assign_inst = std::dynamic_pointer_cast<AssignInst>(inst);
if((!assign_inst->val()->is_int == 1 )||( !assign_inst->val()->get_RISC_V_offset() == 0)){
inst->Dump_Tigger(global_inst, *this);
}
}
}
void FunctionDef::Dump_Eeyore(std::ostream &os) const {
os<<"f_"<<_func_name<<" ["<<_num_args<<"]"<<std::endl;
for (const auto &decl : _decl_insts) decl->Dump_Eeyore(os, *this);
for (const auto &inst : _insts) inst->Dump_Eeyore(os, *this);
os<<"end f_"<<_func_name<<std::endl;
}
void FunctionDef::Dump_Eeyore_GLOB(std::ostream &os) const {
for (const auto &decl : _decl_insts) decl->Dump_Eeyore(os, *this);
for (const auto &inst : _insts) inst->Dump_Eeyore(os, *this);
}
void DeclareVarInst::Dump_Eeyore(std::ostream &os, const FunctionDef &func) const{
os<<"var ";
_val->Dump_Eeyore(os);
os<<std::endl;
}
void DeclareArrInst::Dump_Eeyore(std::ostream &os, const FunctionDef &func) const{
os<<"var "<<_symbol_size<<" ";
_val->Dump_Eeyore(os);
os<<std::endl;
}
void AssignInst::Dump_Eeyore(std::ostream &os, const FunctionDef &func) const{
_dest->Dump_Eeyore(os);
os<<" = ";
_val->Dump_Eeyore(os);
os<<std::endl;
}
void BranchInst::Dump_Eeyore(std::ostream &os, const FunctionDef &func) const{
os <<"if ";
_cond->Dump_Eeyore(os);
if(_bnez){
os<<" != 0 goto ";
}
else{
os<<" == 0 goto ";
}
_label->Dump_Eeyore(os);
os<<std::endl;
}
void JumpInst::Dump_Eeyore(std::ostream &os, const FunctionDef &func) const{
os<<"goto ";
_label->Dump_Eeyore(os);
os<<std::endl;
}
void LabelInst::Dump_Eeyore(std::ostream &os, const FunctionDef &func) const{
_label->Dump_Eeyore(os);
os<<":"<<std::endl;
}
void FuncCallInst::Dump_Eeyore(std::ostream &os, const FunctionDef &func) const{
for(const auto &i: _args){
os<<"param ";
i->Dump_Eeyore(os);
os<<std::endl;
}
_dest->Dump_Eeyore(os);
os<<" = call f_"<<_func->func_name()<<std::endl;
}
void VoidFuncCallInst::Dump_Eeyore(std::ostream &os, const FunctionDef &func) const{
for(const auto &i: _args){
os<<"param ";
i->Dump_Eeyore(os);
os<<std::endl;
}
os<<"call f_"<<_func->func_name()<<std::endl;
}
void ReturnInst::Dump_Eeyore(std::ostream &os, const FunctionDef &func) const{
os<<"return ";
if (_val!=nullptr)
_val->Dump_Eeyore(os);
os<<std::endl;
}
void BinaryInst::Dump_Eeyore(std::ostream &os, const FunctionDef &func) const{
_dest->Dump_Eeyore(os);
os<<" = ";
_lhs->Dump_Eeyore(os);
switch (_op) {
case yy::parser::token::TOK_PLUS: {os<<" + "; break;}
case yy::parser::token::TOK_MINUS: {os<<" - "; break;}
case yy::parser::token::TOK_TIMES: {os<<" * "; break;}
case yy::parser::token::TOK_OVER: {os<<" / "; break;}
case yy::parser::token::TOK_MOD: {os<<" % "; break;}
case yy::parser::token::TOK_LT: {os<<" < "; break;}
case yy::parser::token::TOK_LTE: {os<<" <= "; break;}
case yy::parser::token::TOK_GT: {os<<" > "; break;}
case yy::parser::token::TOK_GTE: {os<<" >= "; break;}
case yy::parser::token::TOK_EQ: {os<<" == "; break;}
case yy::parser::token::TOK_NEQ: {os<<" != "; break;}
case yy::parser::token::TOK_AND: {os<<" && "; break;}
case yy::parser::token::TOK_OR: {os<<" || "; break;}
default: assert(false && "unknown binary operator");
}
_rhs->Dump_Eeyore(os);
os<<std::endl;
}
void UnaryInst::Dump_Eeyore(std::ostream &os, const FunctionDef &func) const{
_dest->Dump_Eeyore(os);
os<<" = ";
switch (_op) {
case yy::parser::token::TOK_PLUS: {break;}
case yy::parser::token::TOK_MINUS: {os<<"-"; break;}
case yy::parser::token::TOK_NOT: {os<<"!"; break;}
default: assert(false && "unknown binary operator");
}
_opr->Dump_Eeyore(os);
os<<std::endl;
}
void SlotVal::Dump_Eeyore(std::ostream &os) const{
os<<"t"<<_id;
}
void VarSlotVal::Dump_Eeyore(std::ostream &os) const{
os<<"T"<<_id;
}
void ArgRefVal::Dump_Eeyore(std::ostream &os) const{
os<<"p"<<_id;
}
void ArrayRefVal::Dump_Eeyore(std::ostream &os) const{
_base->Dump_Eeyore(os);
os<<"[";
_offset->Dump_Eeyore(os);
os<<"]";
}
void LabelVal::Dump_Eeyore(std::ostream &os) const{
os<<"l"<<_id;
}
void IntVal::Dump_Eeyore(std::ostream &os) const{
os<<_val;
}
void DeclareVarInst::Dump_Tigger(std::ostream &os, const FunctionDef &func) const{
if (func.func_name()!="00_GLOBAL"){
assert(false && "DeclareVarInst won't generate anything out global area!");
}
_val->Dump_Tigger(os);
os<<" = 0"<<std::endl;
}
void DeclareArrInst::Dump_Tigger(std::ostream &os, const FunctionDef &func) const{
if (func.func_name()!="00_GLOBAL"){
assert(false && "DeclareArrInst won't generate anything out global area!");
}
_val->Dump_Tigger(os);
os<<" = malloc "<<_symbol_size<<std::endl;
}
void AssignInst::Dump_Tigger(std::ostream &os, const FunctionDef &func) const{
_val->Dump_Tigger_Read(os);
_dest->Dump_Tigger_Write(os);
}
void JumpInst::Dump_Tigger(std::ostream &os, const FunctionDef &func ) const{
os<<"goto ";
_label->Dump_Tigger(os);
os<<std::endl;
}
void LabelInst::Dump_Tigger(std::ostream &os, const FunctionDef &func ) const{
_label->Dump_Tigger(os);
os<<":"<<std::endl;
}
void UnaryInst::Dump_Tigger(std::ostream &os, const FunctionDef &func ) const{
_opr->Dump_Tigger_Read(os);
switch (_op) {
case yy::parser::token::TOK_PLUS: {break;}
case yy::parser::token::TOK_MINUS: {os<<kResultReg<<" = -"<<kResultReg<<std::endl; break;}
case yy::parser::token::TOK_NOT: {os<<kResultReg<<" = !"<<kResultReg<<std::endl; break;}
default: assert(false && "unknown binary operator");
}
_dest->Dump_Tigger_Write(os);
}
void BinaryInst::Dump_Tigger(std::ostream &os, const FunctionDef &func ) const{
_lhs->Dump_Tigger_Read(os);
os << kResult2Reg<<" = "<<kResultReg<<std::endl;
_rhs->Dump_Tigger_Read(os);
switch (_op) {
case yy::parser::token::TOK_PLUS: {os<<kResultReg<<" = "<<kResult2Reg<<" + "<<kResultReg<<std::endl; break;}
case yy::parser::token::TOK_MINUS: {os<<kResultReg<<" = "<<kResult2Reg<<" - "<<kResultReg<<std::endl; break;}
case yy::parser::token::TOK_TIMES: {os<<kResultReg<<" = "<<kResult2Reg<<" * "<<kResultReg<<std::endl; break;}
case yy::parser::token::TOK_OVER: {os<<kResultReg<<" = "<<kResult2Reg<<" / "<<kResultReg<<std::endl; break;}
case yy::parser::token::TOK_MOD: {os<<kResultReg<<" = "<<kResult2Reg<<" % "<<kResultReg<<std::endl; break;}
case yy::parser::token::TOK_LT: {os<<kResultReg<<" = "<<kResult2Reg<<" < "<<kResultReg<<std::endl; break;}
case yy::parser::token::TOK_LTE: {os<<kResultReg<<" = "<<kResult2Reg<<" <= "<<kResultReg<<std::endl; break;}
case yy::parser::token::TOK_GT: {os<<kResultReg<<" = "<<kResult2Reg<<" > "<<kResultReg<<std::endl; break;}
case yy::parser::token::TOK_GTE: {os<<kResultReg<<" = "<<kResult2Reg<<" >= "<<kResultReg<<std::endl; break;}
case yy::parser::token::TOK_EQ: {os<<kResultReg<<" = "<<kResult2Reg<<" == "<<kResultReg<<std::endl; break;}
case yy::parser::token::TOK_NEQ: {os<<kResultReg<<" = "<<kResult2Reg<<" != "<<kResultReg<<std::endl; break;}
case yy::parser::token::TOK_AND: {os<<kResultReg<<" = "<<kResult2Reg<<" && "<<kResultReg<<std::endl; break;}
case yy::parser::token::TOK_OR: {os<<kResultReg<<" = "<<kResult2Reg<<" || "<<kResultReg<<std::endl; break;}
default: assert(false && "unknown binary operator");
}
_dest->Dump_Tigger_Write(os);
}
void BranchInst::Dump_Tigger(std::ostream &os, const FunctionDef &func ) const{
_cond->Dump_Tigger_Read(os);
os <<"if "<<kResultReg;
if(_bnez){
os<<" != x0 goto ";
}
else{
os<<" == x0 goto ";
}
_label->Dump_Tigger(os);
os<<std::endl;
}
void FuncCallInst::Dump_Tigger(std::ostream &os, const FunctionDef &func ) const{
std::size_t j = 0;
for(const auto &i: _args){
i->Dump_Tigger_Read(os);
os<<"a"<<j++<<" = "<<kResultReg<<std::endl;
}
os<<"call f_"<<_func->func_name()<<std::endl;
os<<kResultReg<<" = a0"<<std::endl;
for (std::size_t i = 0; i < _args.size(); ++i) {
os << "load "<<i<<" a"<<i<<std::endl;
}
_dest->Dump_Tigger_Write(os);
}
void ReturnInst::Dump_Tigger(std::ostream &os, const FunctionDef &func ) const{
if (_val!=nullptr)
_val->Dump_Tigger_Read(os);
os<< "a0 = "<<kResultReg<<std::endl;
os<<"return"<<std::endl;
}
//2*FuncDef Bugs in load store loadaddr
void VoidFuncCallInst::Dump_Tigger(std::ostream &os, const FunctionDef &func ) const{
std::size_t j = 0;
for(const auto &i: _args){
i->Dump_Tigger_Read(os);
os<<"a"<<j++<<" = "<<kResultReg<<std::endl;
}
os<<"call f_"<<_func->func_name()<<std::endl;
for (std::size_t i = 0; i < _args.size(); ++i) {
os << "load "<<i<<" a"<<i<<std::endl;
}
}
void SlotVal::Dump_Tigger(std::ostream &os ) const{
os<<_offset;
}
void SlotVal::Dump_Tigger_Read(std::ostream &os ) const{
os<<"load "<<(_offset/4 + 8)<<" "<<kResultReg<<std::endl;
}
void SlotVal::Dump_Tigger_Write(std::ostream &os ) const{
os<<"store "<<kResultReg<<" "<<_offset/4 + 8<<std::endl;
}
void SlotVal::Dump_Tigger_offset(std::ostream &os ) const{
os<<_offset/4 + 8;
}
void VarSlotVal::Dump_Tigger(std::ostream &os ) const{
if (_is_global == 1){
os<<"v"<<_id;
}
else{
os<<_offset;
}
}
void VarSlotVal::Dump_Tigger_offset(std::ostream &os ) const{
if (_is_global == 1){
os<<"v"<<_id;
}
else{
os<<_offset/4 + 8;
}
}
void VarSlotVal::Dump_Tigger_Read(std::ostream &os ) const{
if (_is_global == 1){
if (_is_addr){
os<<"loadaddr v"<<_id<<" "<<kResultReg<<std::endl;
}
else{
os<<"load v"<<_id<<" "<<kResultReg<<std::endl;
}
}
else{
if (_is_addr){
os<<"loadaddr "<<_offset/4 + 8<<" "<<kResultReg<<std::endl;
}
else{
os<<"load "<<_offset/4 + 8 <<" "<<kResultReg<<std::endl;
}
}
}
void VarSlotVal::Dump_Tigger_Write(std::ostream &os ) const{
if (_is_global == 1){
os<<"loadaddr v"<<_id<<" "<<kArrReg<<std::endl;
os<<kArrReg<<"[0]"<<" = "<<kResultReg<<std::endl;
}
else{
os<<"store "<<kResultReg<<" "<<_offset/4 + 8<<std::endl;
}
}
void ArgRefVal::Dump_Tigger(std::ostream &os ) const{
os<<"a"<<_id;
}
void ArgRefVal::Dump_Tigger_Read(std::ostream &os ) const{
os<<"load "<<_id<<" "<<kResultReg<<std::endl;
}
void ArgRefVal::Dump_Tigger_Write(std::ostream &os ) const{
os<<"store "<<kResultReg<<" "<<_id<<std::endl;
}
void ArrayRefVal::Dump_Tigger(std::ostream &os ) const{
assert(false && "Should not call Dump_Tigger of ArrayRefVal Directly!");
}
void ArrayRefVal::Dump_Tigger_Read(std::ostream &os ) const{
if(_offset->is_int == 1){
if (_base->is_arg_ref == 1){
os<<kArrReg<<" = ";
_base->Dump_Tigger(os);
os<<std::endl;
}
else{
os <<"loadaddr ";
_base->Dump_Tigger_offset(os);
os<<" "<<kArrReg<<std::endl;
}
os << kResultReg << " = "<<kArrReg<<"[";
_offset->Dump_Tigger(os);
os<<"]"<<std::endl;
}
else{
if (_base->is_arg_ref == 1){
os<<kArrReg<<" = ";
_base->Dump_Tigger(os);
os<<std::endl;
}
else{
os <<"loadaddr ";
_base->Dump_Tigger_offset(os);
os<<" "<<kArrReg<<std::endl;
}
if (_offset->is_arg_ref == 1){
os<<kTempReg<<" = ";
_offset->Dump_Tigger(os);
os<<std::endl;
}
else{
os <<"load ";
_offset->Dump_Tigger_offset(os);
os<<" "<<kTempReg<<std::endl;
}
os << kArrReg << " = "<<kArrReg<< " + "<< kTempReg<<std::endl;
os << kResultReg << " = "<<kArrReg<<"[0]"<<std::endl;
}
}
void ArrayRefVal::Dump_Tigger_Write(std::ostream &os ) const{
if(_offset->is_int == 1){
if (_base->is_arg_ref == 1){
os<<kArrReg<<" = ";
_base->Dump_Tigger(os);
os<<std::endl;
}
else{
os <<"loadaddr ";
_base->Dump_Tigger_offset(os);
os<<" "<<kArrReg<<std::endl;
}
os <<kArrReg<<"[";
_offset->Dump_Tigger(os);
os<<"]"<<" = "<<kResultReg << std::endl;
}
else{
if (_base->is_arg_ref == 1){
os<<kArrReg<<" = ";
_base->Dump_Tigger(os);
os<<std::endl;
}
else{
os <<"loadaddr ";
_base->Dump_Tigger_offset(os);
os<<" "<<kArrReg<<std::endl;
}
if (_offset->is_arg_ref == 1){
os<<kTempReg<<" = ";
_offset->Dump_Tigger(os);
os<<std::endl;
}
else{
os <<"load ";
_offset->Dump_Tigger_offset(os);
os<<" "<<kTempReg<<std::endl;
}
os << kArrReg << " = "<<kArrReg<< " + "<< kTempReg<<std::endl;
os << kArrReg<<"[0]" << " = "<<kResultReg<<std::endl;
}
}
void LabelVal::Dump_Tigger(std::ostream &os ) const{
os<<"l"<<_id;
}
void LabelVal::Dump_Tigger_Read(std::ostream &os ) const{
assert(false && "reading a label");
}
void LabelVal::Dump_Tigger_Write(std::ostream &os ) const{
assert(false && "writing a label");
}
void IntVal::Dump_Tigger(std::ostream &os ) const{
os<<_val;
}
void IntVal::Dump_Tigger_Read(std::ostream &os ) const{
os<<kResultReg<<" = "<<_val<<std::endl;
}
void IntVal::Dump_Tigger_Write(std::ostream &os ) const{
assert(false && "writing an integer");
}
//Bugs in MakeVarSlot if a global variable do not need to add
//2 FuncDefs not implemented yet.
//irgen not implemented yet.
//Not sure is there any bugs in VarSlot Dump_Tigger_Write
//Not sure what is going on with the rest two?
void FunctionDef::Dump_RISC_V(std::ostream &os, std::stringstream& global_inst) const{
/*
STK = (int2 / 4 + 1) * 16
.text
.align 2
.global func
.type func, @function
func:
addi sp, sp, -STK
sw ra, STK-4(sp)
...
.size func, .-func
*/
std::size_t stk = ((_cur_offset + 4*8)/16 + 1) * 16;
os<<" .text"<<std::endl;
os<<" .align 2"<<std::endl;
os<<" .global "<<_func_name<<std::endl;
os<<" .type "<<_func_name<<", @function"<<std::endl;
os<<_func_name<<":"<<std::endl;
if (stk < 2048){
os<<"addi sp, sp, -"<<stk<<std::endl;
os<<"sw ra, "<<stk-4<<"(sp)"<<std::endl;
}
else{
os<<"li "<<kResult3Reg<<", "<<-stk<<std::endl;
os<<"add sp, sp, "<<kResult3Reg<<std::endl;
os<<"li "<<kResult3Reg<<", "<<stk-4<<std::endl;
os<<"add "<<kResult3Reg<<", sp, "<<kResult3Reg<<std::endl;
os<<"sw ra, 0("<<kResult3Reg<<")"<<std::endl;
}
if(_func_name == "main"){
os<<global_inst.str();
}
for (std::size_t i = 0; i < _num_args; ++i) {
//sw reg, int10*4(sp)
os<<"sw a"<<i<<", "<<i*4<<"(sp)"<<std::endl;
}
for (const auto &inst: _insts) inst->Dump_RISC_V(os, *this);
os<<" .size "<<_func_name<<", .-"<<_func_name<<std::endl;
}
void FunctionDef::Dump_RISC_V_GLOB(std::ostream &os, std::stringstream& global_inst) const{
//First Dump those Non-Zero Variables
//Record these dumped Global Variables
for (const auto &decl : _decl_insts) decl->Dump_RISC_V(os, *this);
for (const auto &inst: _insts) {
auto assign_inst = std::dynamic_pointer_cast<AssignInst>(inst);
if((!assign_inst->val()->is_int == 1 )||( !assign_inst->val()->get_RISC_V_offset() == 0)){
inst->Dump_RISC_V(global_inst, *this);
}
}
}
void DeclareVarInst::Dump_RISC_V(std::ostream &os, const FunctionDef &func) const{
if (func.func_name()!="00_GLOBAL"){
assert(false && "DeclareVarInst won't generate anything out global area!");
}
os<<" .global "; _val->Dump_RISC_V(os); os <<std::endl;
os<<" .section .sdata"<<std::endl;
os<<" .align 2"<<std::endl;
os<<" .type "; _val->Dump_RISC_V(os); os<<", @object"<<std::endl;
os<<" .size "; _val->Dump_RISC_V(os); os<<", 4"<<std::endl;
_val->Dump_RISC_V(os); os<<":"<<std::endl;
os<<" .word 0"<<std::endl;
}
void DeclareArrInst::Dump_RISC_V(std::ostream &os, const FunctionDef &func) const{
if (func.func_name()!="00_GLOBAL"){
assert(false && "DeclareArrInst won't generate anything out global area!");
}
os<<" .comm ";
_val->Dump_RISC_V(os);
os<<", "<<_symbol_size<<", 4"<<std::endl;
}
void AssignInst::Dump_RISC_V(std::ostream &os, const FunctionDef &func) const{
_val->Dump_RISC_V_Read(os);
_dest->Dump_RISC_V_Write(os);
}
void JumpInst::Dump_RISC_V(std::ostream &os, const FunctionDef &func ) const{
os<<"j ";
_label->Dump_RISC_V(os);
os<<std::endl;
}
void LabelInst::Dump_RISC_V(std::ostream &os, const FunctionDef &func ) const{
_label->Dump_RISC_V(os);
os<<":"<<std::endl;
}
void UnaryInst::Dump_RISC_V(std::ostream &os, const FunctionDef &func ) const{
_opr->Dump_RISC_V_Read(os);
switch (_op) {
case yy::parser::token::TOK_PLUS: {break;}
case yy::parser::token::TOK_MINUS: {os<<"neg "<<kResultReg<<", "<<kResultReg<<std::endl; break;}
case yy::parser::token::TOK_NOT: {os<<"seqz "<<kResultReg<<", "<<kResultReg<<std::endl; break;}
default: assert(false && "unknown binary operator");
}
_dest->Dump_RISC_V_Write(os);
}
void BinaryInst::Dump_RISC_V(std::ostream &os, const FunctionDef &func ) const{
_lhs->Dump_RISC_V_Read(os);
os << "mv " << kResult2Reg << ", " << kResultReg << std::endl;
_rhs->Dump_RISC_V_Read(os);
if (_op == yy::parser::token::TOK_LTE || _op ==yy::parser::token::TOK_GTE) {
os << (_op == yy::parser::token::TOK_LTE ? "sgt " : "slt ")<< kResultReg << ", " << kResult2Reg << ", " << kResultReg<< std::endl;
os << "seqz " << kResultReg << ", " << kResultReg << std::endl;
}
else if (_op == yy::parser::token::TOK_EQ || _op == yy::parser::token::TOK_NEQ) {
os << "xor " << kResultReg << ", " << kResult2Reg << ", " << kResultReg<< std::endl;
os << (_op == yy::parser::token::TOK_EQ ? "seqz" : "snez") << ' '
<< kResultReg << ", " << kResultReg << std::endl;
}
else if (_op == yy::parser::token::TOK_AND){
//snez reg1, reg2
//snez t0, reg3
//and reg1, reg1, t0
os <<"snez "<<kResultReg<<", "<<kResult2Reg<<std::endl;
os <<"snez "<<kResult3Reg<<", "<<kResultReg<<std::endl;
os <<"and "<<kResultReg<<", "<<kResultReg<<", "<<kResult3Reg<<std::endl;
}
else if (_op == yy::parser::token::TOK_OR){
//or reg1, reg2, reg3
//snez reg1, reg1
os <<"or "<<kResultReg<<", "<<kResult2Reg<<", "<<kResultReg<<std::endl;
os <<"snez "<<kResultReg<<", "<<kResultReg<<std::endl;
}
else {
switch (_op) {
case yy::parser::token::TOK_PLUS: os << "add"; break;
case yy::parser::token::TOK_MINUS: os << "sub"; break;
case yy::parser::token::TOK_TIMES: os << "mul"; break;
case yy::parser::token::TOK_OVER: os << "div"; break;
case yy::parser::token::TOK_MOD: os << "rem"; break;
case yy::parser::token::TOK_LT: os << "slt"; break;
case yy::parser::token::TOK_GT: os << "sgt"; break;
default: assert(false && "unknown binary operator");
}
os << ' ' << kResultReg << ", " << kResult2Reg << ", " << kResultReg
<< std::endl;
}
_dest->Dump_RISC_V_Write(os);
}
void BranchInst::Dump_RISC_V(std::ostream &os, const FunctionDef &func ) const{
_cond->Dump_RISC_V_Read(os);
os <<(_bnez ? "bnez" : "beqz") << ' ' << kResultReg << ", ";
_label->Dump_RISC_V(os);
os<<std::endl;
}
void FuncCallInst::Dump_RISC_V(std::ostream &os, const FunctionDef &func ) const{
std::size_t j = 0;
for(const auto &i: _args){
i->Dump_RISC_V_Read(os);
os<<"mv a"<<j++<<", "<<kResultReg<<std::endl;
}
os<<"call "<<_func->func_name()<<std::endl;
os<<"mv "<<kResultReg<<", a0"<<std::endl;
for (std::size_t i = 0; i < _args.size(); ++i) {
os << "lw a"<<i<<", "<<i*4<<"(sp)"<<std::endl;
}
_dest->Dump_RISC_V_Write(os);
}
void ReturnInst::Dump_RISC_V(std::ostream &os, const FunctionDef &func ) const{
if (_val!=nullptr)
_val->Dump_RISC_V_Read(os);
os<< "mv a0, "<<kResultReg<<std::endl;
std::size_t stk = ((func.cur_offset()/4 + 8)/4 + 1) * 16;
if (stk < 2048){
os<<"lw ra, "<<stk - 4<<"(sp)"<<std::endl;
os<<"addi sp, sp, "<<stk<<std::endl;
}
else{
os<<"li "<<kResult3Reg<<", "<<stk-4<<std::endl;
os<<"add "<<kResult3Reg<<", sp, "<<kResult3Reg<<std::endl;
os<<"lw ra, 0("<<kResult3Reg<<")"<<std::endl;
os<<"li "<<kResult3Reg<<", "<<stk<<std::endl;
os<<"add sp, sp, "<<kResult3Reg<<std::endl;
}
os<<"ret"<<std::endl;
}
//2*FuncDef Bugs in load store loadaddr
void VoidFuncCallInst::Dump_RISC_V(std::ostream &os, const FunctionDef &func ) const{
std::size_t j = 0;
for(const auto &i: _args){
i->Dump_RISC_V_Read(os);
os<<"mv a"<<j++<<", "<<kResultReg<<std::endl;
}
if (_func->func_name() == "starttime"){
os<<"li a0, 1"<<std::endl;
os<<"call _sysy_starttime"<<std::endl;
}else{
if (_func->func_name() == "stoptime"){
os<<"li a0, 2"<<std::endl;
os<<"call _sysy_stoptime"<<std::endl;
}
else{
os<<"call "<<_func->func_name()<<std::endl;
}
}
//lw reg, int10*4(sp)
for (std::size_t i = 0; i < _args.size(); ++i) {
os << "lw a"<<i<<", "<<i*4<<"(sp)"<<std::endl;
}
}
void SlotVal::Dump_RISC_V(std::ostream &os ) const{
os<<_offset;
}
void SlotVal::Dump_RISC_V_Read(std::ostream &os ) const{
//load int10 reg
//lw reg, int10*4(sp)
if (_offset + 32 < 2048){
os<<"lw "<<kResultReg<<", "<<_offset + 32<<"(sp)"<<std::endl;
}
else{
os<<"li "<<kResult3Reg<<", "<<_offset + 32<<std::endl;
os<<"add "<<kResult3Reg<<", sp, "<<kResult3Reg<<std::endl;
os<<"lw "<<kResultReg<<", 0("<<kResult3Reg<<")"<<std::endl;
}
}
void SlotVal::Dump_RISC_V_Write(std::ostream &os ) const{
if (_offset + 32 < 2048){
os<<"sw "<<kResultReg<<", "<<_offset + 32<<"(sp)"<<std::endl;
}
else{
os<<"li "<<kResult3Reg<<", "<<_offset + 32<<std::endl;
os<<"add "<<kResult3Reg<<", sp, "<<kResult3Reg<<std::endl;
os<<"sw "<<kResultReg<<", 0("<<kResult3Reg<<")"<<std::endl;
}
}
void SlotVal::Dump_RISC_V_offset(std::ostream &os ) const{
os<<_offset + 32;
}
void VarSlotVal::Dump_RISC_V(std::ostream &os ) const{
if (_is_global == 1){
os<<"v"<<_id;
}
else{
os<<_offset;
}
}
void VarSlotVal::Dump_RISC_V_offset(std::ostream &os ) const{
if (_is_global == 1){
os<<"v"<<_id;
}
else{
os<<_offset + 32;
}
}
void VarSlotVal::Dump_RISC_V_Read(std::ostream &os ) const{
if (_is_global == 1){
if (_is_addr){
//loadaddr global_var reg la reg, global_var
os<<"la "<<kResultReg<<", v"<<_id<<std::endl;
}
else{
//load global_var reg lui reg, %hi(global_var) lw reg, %lo(global_var)(reg)
os<<"lui "<<kResultReg<<", %hi(v"<<_id<<")"<<std::endl;
os<<"lw "<<kResultReg<<", %lo(v"<<_id<<")("<<kResultReg<<")"<<std::endl;
}
}
else{
if (_is_addr){
//loadaddr int10 reg addi reg, sp, int10*4
//os <<"li "<<kResult3Reg<<_offset + 32<<std::endl;
if (_offset + 32 < 2048){
os<<"addi "<<kResultReg<<", sp, "<<_offset + 32<<std::endl;
}
else{
os<<"li "<<kResult3Reg<<", "<<_offset + 32<<std::endl;
os<<"add "<<kResultReg<<", sp, "<<kResult3Reg<<std::endl;
}
}
else{
//load int10 reg lw reg, int10*4(sp)
if (_offset + 32 < 2048){
os<<"lw "<<kResultReg<<", "<<_offset + 32<<"(sp)"<<std::endl;
}
else{
os<<"li "<<kResult3Reg<<", "<<_offset + 32<<std::endl;
os<<"add "<<kResult3Reg<<", sp, "<<kResult3Reg<<std::endl;
os<<"lw "<<kResultReg<<", 0("<<kResult3Reg<<")"<<std::endl;
}
}
}
}
void VarSlotVal::Dump_RISC_V_Write(std::ostream &os ) const{
if (_is_global == 1){
os<<"la "<<kArrReg<<", v"<<_id<<std::endl;
//reg1[int12] = reg2 sw reg2, int12(reg1)
os<<"sw "<<kResultReg<<", 0("<<kArrReg<<")"<<std::endl;
}
else{
if (_offset + 32 < 2048){
os<<"sw "<<kResultReg<<", "<<_offset + 32<<"(sp)"<<std::endl;
}
else{
os<<"li "<<kResult3Reg<<", "<<_offset + 32<<std::endl;
os<<"add "<<kResult3Reg<<", sp, "<<kResult3Reg<<std::endl;
os<<"sw "<<kResultReg<<", 0("<<kResult3Reg<<")"<<std::endl;
}
}
}
void ArgRefVal::Dump_RISC_V(std::ostream &os ) const{
os<<"a"<<_id;
}
void ArgRefVal::Dump_RISC_V_Read(std::ostream &os ) const{
os<<"lw "<<kResultReg<<", "<<_id * 4<<"(sp)"<<std::endl;
}
void ArgRefVal::Dump_RISC_V_Write(std::ostream &os ) const{
os<<"sw "<<kResultReg<<", "<<_id * 4<<"(sp)"<<std::endl;
}
void ArrayRefVal::Dump_RISC_V(std::ostream &os ) const{
assert(false && "Should not call Dump_Tigger of ArrayRefVal Directly!");
}
void ArrayRefVal::Dump_RISC_V_Read(std::ostream &os ) const{
if(_offset->is_int == 1){
if (_base->is_arg_ref == 1){
//mv reg1, reg2
os<<"mv "<<kArrReg<<", ";
_base->Dump_RISC_V(os);
os<<std::endl;
}
else{
//loadaddr int10 reg addi reg, sp, int10*4
//loadaddr global_var reg la reg, global_var
if(_base->_is_global == 1){
os<< "la "<<kArrReg<<", ";
_base->Dump_RISC_V_offset(os);
os<<std::endl;
}
else{
std::size_t base_offset = _base->get_RISC_V_offset();
if (base_offset < 2048){
os<<"addi "<<kArrReg<<", sp, "<<base_offset<<std::endl;
}
else{
os<<"li "<<kResult3Reg<<", "<<base_offset<<std::endl;
os<<"add "<<kArrReg<<", sp, "<<kResult3Reg<<std::endl;
}
}
}
//reg1 = reg2[int12] lw reg1, int12(reg2)
//Bugs here
std::size_t off_offset = _offset->get_RISC_V_offset();
if (off_offset < 2048){
os<<"lw "<<kResultReg<<", "<<off_offset<<"("<<kArrReg<<")"<<std::endl;
}
else{
os<<"li "<<kResult3Reg<<", "<<off_offset<<std::endl;
os<<"add "<<kResult3Reg<<", "<<kArrReg<<", "<<kResult3Reg<<std::endl;
os<<"lw "<<kResultReg<<", 0("<<kResult3Reg<<")"<<std::endl;
}
}
else{
if (_base->is_arg_ref == 1){
os<<"mv "<<kArrReg<<", ";
_base->Dump_RISC_V(os);
os<<std::endl;
}
else{
if(_base->_is_global == 1){
os<< "la "<<kArrReg<<", ";
_base->Dump_RISC_V_offset(os);
os<<std::endl;
}
else{
//Bugs here