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CProgAST.cpp
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CProgAST.cpp
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// ---------------------------------------------------------- C++ System Headers
#include <iostream>
#include <string>
#include <vector>
// ------------------------------------------------------------- Project Headers
#include "CProgAST.h"
#include "IR.h"
#include "Writer.h"
////////////////////////////////////////////////////////////////////////////////
// class CProgAST //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTProgram::~CProgASTProgram()
{
for(CProgASTFuncdef* funcdef : funcdefs)
{
delete funcdef;
}
}
// ----------------------------------------------------- Public Member Functions
void CProgASTProgram::add_funcdef(CProgASTFuncdef* funcdef)
{
funcdefs.push_back(funcdef);
}
void CProgASTProgram::build_ir(IR& ir) const
{
for(CProgASTFuncdef* funcdef : funcdefs)
{
ir.add_cfg(funcdef->build_ir(&ir.global_symbols));
}
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTFuncdef //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTFuncdef::CProgASTFuncdef(const std::string &id, Type type) :
identifier(id), return_type(type)
{}
CProgASTFuncdef::~CProgASTFuncdef()
{
for(CProgASTStatement* statement : statements)
{
delete statement;
}
}
// ----------------------------------------------------- Public Member Functions
void CProgASTFuncdef::add_arg(std::string id, Type type)
{
arg_types.push_back(type);
arg_names.push_back(id);
}
void CProgASTFuncdef::add_statement(CProgASTStatement* statement)
{
statements.push_back(statement);
}
CFG* CProgASTFuncdef::build_ir(TableOfSymbols* global_symbols) const
{
global_symbols->add_symbol(identifier, return_type);
SymbolProperties& fproperties = global_symbols->get_symbol(identifier);
fproperties.callable = true;
fproperties.arg_types = arg_types;
CFG* cfg = new CFG(this, identifier, global_symbols);
for(size_t i=0; i<arg_names.size(); ++i)
{
cfg->add_arg_to_symbol_table(arg_names[i], arg_types[i]);
}
for(CProgASTStatement* statement : statements)
{
statement->build_ir(cfg);
}
cfg->check_for_unused_symbols();
return cfg;
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTCompoundStatement : public CProgASTStatement //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTCompoundStatement::~CProgASTCompoundStatement()
{
for(const CProgASTStatement* statement : statements)
{
delete statement;
}
}
// ----------------------------------------------------- Public Member Functions
void CProgASTCompoundStatement::add_statement(CProgASTStatement* statement)
{
statements.push_back(statement);
}
std::string CProgASTCompoundStatement::build_ir(CFG* cfg) const
{
for(const CProgASTStatement* statement : statements)
{
statement->build_ir(cfg);
}
return ""; // ??
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTReturn : public CProgASTStatement //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTReturn::CProgASTReturn(CProgASTExpression* expression) :
return_expression(expression)
{}
CProgASTReturn::~CProgASTReturn()
{
delete return_expression;
}
// ----------------------------------------------------- Public Member Functions
std::string CProgASTReturn::build_ir(CFG* cfg) const
{
std::string rval = return_expression->build_ir(cfg);
cfg->current_bb->add_IRInstr(IRInstr::ret, cfg->get_var_type(rval), {rval});
return ""; // ??
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTDeclaration : public CProgASTStatement //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTDeclaration::CProgASTDeclaration(Type type) :
type_specifier(type)
{}
CProgASTDeclaration::~CProgASTDeclaration()
{
for(const CProgASTDeclarator* declarator : declarators)
{
delete declarator;
}
}
// ----------------------------------------------------- Public Member Functions
void CProgASTDeclaration::add_declarator(CProgASTDeclarator* declarator)
{
declarator->set_type(type_specifier);
declarators.push_back(declarator);
}
std::string CProgASTDeclaration::build_ir(CFG* cfg) const
{
for(const CProgASTDeclarator* declarator : declarators)
{
declarator->build_ir(cfg);
}
return ""; // ??
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTDeclarator //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTDeclarator::CProgASTDeclarator(CProgASTIdentifier* id, CProgASTAssignment* init) :
identifier(id), initializer(init)
{}
CProgASTDeclarator::~CProgASTDeclarator()
{
if(identifier)
delete identifier;
if(initializer)
delete initializer;
}
// ----------------------------------------------------- Public Member Functions
void CProgASTDeclarator::set_type(Type type)
{
type_specifier = type;
}
std::string CProgASTDeclarator::build_ir(CFG* cfg) const
{
std::string name = identifier->getText();
if(!cfg->is_declared(name))
{
cfg->add_to_symbol_table(name, type_specifier);
}
else
{
Writer::error() << "multiple definition of '" << name << "'" << std::endl;
}
if(initializer != nullptr)
{
initializer->build_ir(cfg);
}
return ""; // ??
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTIfStatement : public CProgASTStatement //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTIfStatement::CProgASTIfStatement(CProgASTExpression* condition, CProgASTStatement* if_statement, CProgASTStatement* else_statement) :
condition(condition), if_statement(if_statement), else_statement(else_statement)
{}
CProgASTIfStatement::~CProgASTIfStatement()
{
delete condition;
delete if_statement;
delete else_statement;
}
// ----------------------------------------------------- Public Member Functions
std::string CProgASTIfStatement::build_ir(CFG* cfg) const
{
std::string test_result = condition->build_ir(cfg);
cfg->current_bb->add_IRInstr(IRInstr::cmp_null, cfg->get_var_type(test_result), {test_result});
BasicBlock* test_bb = cfg->current_bb;
BasicBlock* then_bb = new BasicBlock(cfg, cfg->new_BB_name());
BasicBlock* after_if_bb = new BasicBlock(cfg, cfg->new_BB_name());
BasicBlock* else_bb = else_statement ? new BasicBlock(cfg, cfg->new_BB_name()) : nullptr;
after_if_bb->exit_true = test_bb->exit_true;
after_if_bb->exit_false = test_bb->exit_false;
then_bb->exit_true = after_if_bb;
then_bb->exit_false = nullptr;
test_bb->exit_true = then_bb;
test_bb->exit_false = else_bb ? else_bb : after_if_bb;
cfg->current_bb = then_bb;
if_statement->build_ir(cfg);
cfg->add_bb(then_bb);
if(else_bb)
{
cfg->current_bb = else_bb;
else_bb->exit_true = after_if_bb;
else_bb->exit_false = nullptr;
else_statement->build_ir(cfg);
cfg->add_bb(else_bb);
}
cfg->current_bb = after_if_bb;
cfg->add_bb(after_if_bb);
return ""; // ??
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTWhileStatement : public CProgASTStatement //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTWhileStatement::CProgASTWhileStatement(CProgASTExpression* condition, CProgASTStatement* body) :
condition(condition), body(body)
{}
CProgASTWhileStatement::~CProgASTWhileStatement()
{
delete condition;
delete body;
}
// ----------------------------------------------------- Public Member Functions
std::string CProgASTWhileStatement::build_ir(CFG* cfg) const
{
BasicBlock* before_while_bb = cfg->current_bb;
BasicBlock* body_bb = new BasicBlock(cfg, cfg->new_BB_name());
BasicBlock* test_bb = new BasicBlock(cfg, cfg->new_BB_name());
BasicBlock* after_while_bb = new BasicBlock(cfg, cfg->new_BB_name());
after_while_bb->exit_true = before_while_bb->exit_true;
after_while_bb->exit_false = before_while_bb->exit_false;
before_while_bb->exit_true = test_bb;
before_while_bb->exit_false = nullptr;
test_bb->exit_true = body_bb;
test_bb->exit_false = after_while_bb;
body_bb->exit_true = test_bb;
body_bb->exit_false = nullptr;
cfg->current_bb = test_bb;
std::string test_result = condition->build_ir(cfg);
cfg->current_bb->add_IRInstr(IRInstr::cmp_null, cfg->get_var_type(test_result), {test_result});
cfg->add_bb(test_bb);
cfg->current_bb = body_bb;
body->build_ir(cfg);
cfg->add_bb(body_bb);
cfg->current_bb = after_while_bb;
cfg->add_bb(after_while_bb);
return ""; // ??
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTForStatement : public CProgASTStatement //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTForStatement::CProgASTForStatement(CProgASTExpression* initialization, CProgASTExpression* condition, CProgASTExpression* increment, CProgASTStatement* body) :
initialization(initialization), condition(condition), increment(increment), body(body)
{}
CProgASTForStatement::~CProgASTForStatement()
{
delete initialization;
delete condition;
delete increment;
delete body;
}
// ----------------------------------------------------- Public Member Functions
std::string CProgASTForStatement::build_ir(CFG* cfg) const
{
BasicBlock* before_for_bb = cfg->current_bb;
BasicBlock* body_bb = new BasicBlock(cfg, cfg->new_BB_name());
BasicBlock* init_bb = new BasicBlock(cfg, cfg->new_BB_name());
BasicBlock* test_bb = new BasicBlock(cfg, cfg->new_BB_name());
BasicBlock* incr_bb = new BasicBlock(cfg, cfg->new_BB_name());
BasicBlock* after_for_bb = new BasicBlock(cfg, cfg->new_BB_name());
after_for_bb->exit_true = before_for_bb->exit_true;
after_for_bb->exit_false = before_for_bb->exit_false;
before_for_bb->exit_true = init_bb;
before_for_bb->exit_false = nullptr;
init_bb->exit_true = test_bb;
init_bb->exit_false = nullptr;
test_bb->exit_true = body_bb;
test_bb->exit_false = after_for_bb;
body_bb->exit_true = incr_bb;
body_bb->exit_false = nullptr;
incr_bb->exit_true = test_bb;
incr_bb->exit_false = nullptr;
cfg->current_bb = init_bb;
initialization->build_ir(cfg);
cfg->add_bb(init_bb);
cfg->current_bb = test_bb;
std::string test_result = condition->build_ir(cfg);
cfg->current_bb->add_IRInstr(IRInstr::cmp_null, cfg->get_var_type(test_result), {test_result});
cfg->add_bb(test_bb);
cfg->current_bb = body_bb;
body->build_ir(cfg);
cfg->add_bb(body_bb);
cfg->current_bb = incr_bb;
increment->build_ir(cfg);
cfg->add_bb(incr_bb);
cfg->current_bb = after_for_bb;
cfg->add_bb(after_for_bb);
return ""; // ??
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTAssignment //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTAssignment::CProgASTAssignment(
CProgASTIdentifier* identifier,
CProgASTExpression* expression) :
lhs_identifier(identifier),
rhs_expression(expression)
{}
CProgASTAssignment::~CProgASTAssignment()
{
delete lhs_identifier;
delete rhs_expression;
}
// ----------------------------------------------------- Public Member Functions
std::string CProgASTAssignment::build_ir(CFG* cfg) const
{
std::string name = lhs_identifier->getText();
std::string init = rhs_expression->build_ir(cfg);
if(!cfg->is_declared(name))
{
Writer::error() << "use of undeclercqed identifier '" << name << "'" << std::endl;
}
cfg->initialize(name);
cfg->current_bb->add_IRInstr(IRInstr::wmem, cfg->get_var_type(name), {name, init});
return name;
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTPrePP : public CProgASTExpression //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTPrePP::CProgASTPrePP(CProgASTExpression* expression) :
inner_expression(expression)
{}
CProgASTPrePP::~CProgASTPrePP()
{
delete inner_expression;
}
// ----------------------------------------------------- Public Member Functions
std::string CProgASTPrePP::build_ir(CFG* cfg) const
{
std::string exp_name = inner_expression->build_ir(cfg);
cfg->current_bb->add_IRInstr(IRInstr::pre_pp, cfg->get_var_type(exp_name), {exp_name});
return exp_name;
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTPreMM : public CProgASTExpression //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTPreMM::CProgASTPreMM(CProgASTExpression* expression) :
inner_expression(expression)
{}
CProgASTPreMM::~CProgASTPreMM()
{
delete inner_expression;
}
// ----------------------------------------------------- Public Member Functions
std::string CProgASTPreMM::build_ir(CFG* cfg) const
{
std::string exp_name = inner_expression->build_ir(cfg);
cfg->current_bb->add_IRInstr(IRInstr::pre_mm, cfg->get_var_type(exp_name), {exp_name});
return exp_name;
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTPostPP : public CProgASTExpression //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTPostPP::CProgASTPostPP(CProgASTExpression* expression) :
inner_expression(expression)
{}
CProgASTPostPP::~CProgASTPostPP()
{
delete inner_expression;
}
// ----------------------------------------------------- Public Member Functions
std::string CProgASTPostPP::build_ir(CFG* cfg) const
{
std::string exp_name = inner_expression->build_ir(cfg);
Type result_type = cfg->get_var_type(exp_name);
std::string tmp_name = cfg->create_new_tempvar(result_type);
cfg->current_bb->add_IRInstr(IRInstr::post_pp, result_type, {tmp_name, exp_name});
return tmp_name;
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTPostMM : public CProgASTExpression //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTPostMM::CProgASTPostMM(CProgASTExpression* expression) :
inner_expression(expression)
{}
CProgASTPostMM::~CProgASTPostMM()
{
delete inner_expression;
}
// ----------------------------------------------------- Public Member Functions
std::string CProgASTPostMM::build_ir(CFG* cfg) const
{
std::string exp_name = inner_expression->build_ir(cfg);
Type result_type = cfg->get_var_type(exp_name);
std::string tmp_name = cfg->create_new_tempvar(result_type);
cfg->current_bb->add_IRInstr(IRInstr::post_mm, result_type, {tmp_name, exp_name});
return tmp_name;
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTBAnd : public CProgASTExpression //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTBAnd::CProgASTBAnd(CProgASTExpression* lhs, CProgASTExpression* rhs) :
lhs_operand(lhs), rhs_operand(rhs)
{}
CProgASTBAnd::~CProgASTBAnd()
{
delete lhs_operand;
delete rhs_operand;
}
// ----------------------------------------------------- Public Member Functions
std::string CProgASTBAnd::build_ir(CFG* cfg) const
{
std::string lhs_name = lhs_operand->build_ir(cfg);
std::string rhs_name = rhs_operand->build_ir(cfg);
Type result_type = cfg->get_max_type(lhs_name, rhs_name);
std::string tmp_name = cfg->create_new_tempvar(result_type);
cfg->current_bb->add_IRInstr(IRInstr::band, result_type, {tmp_name, lhs_name, rhs_name});
return tmp_name;
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTBOr : public CProgASTExpression //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTBOr::CProgASTBOr(CProgASTExpression* lhs, CProgASTExpression* rhs) :
lhs_operand(lhs), rhs_operand(rhs)
{}
CProgASTBOr::~CProgASTBOr()
{
delete lhs_operand;
delete rhs_operand;
}
// ----------------------------------------------------- Public Member Functions
std::string CProgASTBOr::build_ir(CFG* cfg) const
{
std::string lhs_name = lhs_operand->build_ir(cfg);
std::string rhs_name = rhs_operand->build_ir(cfg);
Type result_type = cfg->get_max_type(lhs_name, rhs_name);
std::string tmp_name = cfg->create_new_tempvar(result_type);
cfg->current_bb->add_IRInstr(IRInstr::bor, result_type, {tmp_name, lhs_name, rhs_name});
return tmp_name;
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTBXor : public CProgASTExpression //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTBXor::CProgASTBXor(CProgASTExpression* lhs, CProgASTExpression* rhs) :
lhs_operand(lhs), rhs_operand(rhs)
{}
CProgASTBXor::~CProgASTBXor()
{
delete lhs_operand;
delete rhs_operand;
}
// ----------------------------------------------------- Public Member Functions
std::string CProgASTBXor::build_ir(CFG* cfg) const
{
std::string lhs_name = lhs_operand->build_ir(cfg);
std::string rhs_name = rhs_operand->build_ir(cfg);
Type result_type = cfg->get_max_type(lhs_name, rhs_name);
std::string tmp_name = cfg->create_new_tempvar(result_type);
cfg->current_bb->add_IRInstr(IRInstr::bxor, result_type, {tmp_name, lhs_name, rhs_name});
return tmp_name;
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTBNot : public CProgASTExpression //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTBNot::CProgASTBNot(CProgASTExpression* expression) :
inner_expression(expression)
{}
CProgASTBNot::~CProgASTBNot()
{
delete inner_expression;
}
// ----------------------------------------------------- Public Member Functions
std::string CProgASTBNot::build_ir(CFG* cfg) const
{
std::string exp_name = inner_expression->build_ir(cfg);
Type result_type = cfg->get_var_type(exp_name);
std::string tmp_name = cfg->create_new_tempvar(result_type);
cfg->current_bb->add_IRInstr(IRInstr::bnot, result_type, {tmp_name, exp_name});
return tmp_name;
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTAnd : public CProgASTExpression //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTAnd::CProgASTAnd(CProgASTExpression* lhs, CProgASTExpression* rhs) :
lhs_operand(lhs), rhs_operand(rhs)
{}
CProgASTAnd::~CProgASTAnd()
{
delete lhs_operand;
delete rhs_operand;
}
// ----------------------------------------------------- Public Member Functions
std::string CProgASTAnd::build_ir(CFG* cfg) const
{
std::string lhs_name = lhs_operand->build_ir(cfg);
cfg->current_bb->add_IRInstr(IRInstr::cmp_null, cfg->get_var_type(lhs_name), {lhs_name});
std::string tmp_name = cfg->create_new_tempvar(Type::INT_64);
BasicBlock* test1_bb = cfg->current_bb;
BasicBlock* then1_bb = new BasicBlock(cfg, cfg->new_BB_name());
BasicBlock* after_if1_bb = new BasicBlock(cfg, cfg->new_BB_name());
BasicBlock* else1_bb = new BasicBlock(cfg, cfg->new_BB_name());
after_if1_bb->exit_true = test1_bb->exit_true;
after_if1_bb->exit_false = test1_bb->exit_false;
then1_bb->exit_true = after_if1_bb;
then1_bb->exit_false = nullptr;
test1_bb->exit_true = then1_bb;
test1_bb->exit_false = else1_bb;
//then
cfg->current_bb = then1_bb;
{
std::string rhs_name = rhs_operand->build_ir(cfg);
cfg->current_bb->add_IRInstr(IRInstr::cmp_null, cfg->get_var_type(rhs_name), {rhs_name});
BasicBlock* test2_bb = cfg->current_bb;
BasicBlock* then2_bb = new BasicBlock(cfg, cfg->new_BB_name());
BasicBlock* after_if2_bb = new BasicBlock(cfg, cfg->new_BB_name());
BasicBlock* else2_bb = new BasicBlock(cfg, cfg->new_BB_name());
after_if2_bb->exit_true = test2_bb->exit_true;
after_if2_bb->exit_false = test2_bb->exit_false;
then2_bb->exit_true = after_if2_bb;
then2_bb->exit_false = nullptr;
test2_bb->exit_true = then2_bb;
test2_bb->exit_false = else2_bb;
//then
cfg->current_bb = then2_bb;
cfg->current_bb->add_IRInstr(IRInstr::ldconst, Type::INT_64, {tmp_name, "1"});
cfg->add_bb(then2_bb);
//else
{
cfg->current_bb = else2_bb;
else2_bb->exit_true = after_if2_bb;
else2_bb->exit_false = nullptr;
else2_bb->add_IRInstr(IRInstr::ldconst, Type::INT_64, {tmp_name, "0"});
cfg->add_bb(else2_bb);
}
//after
cfg->current_bb = after_if2_bb;
cfg->add_bb(after_if2_bb);
}
cfg->add_bb(then1_bb);
//else
{
cfg->current_bb = else1_bb;
else1_bb->exit_true = after_if1_bb;
else1_bb->exit_false = nullptr;
cfg->current_bb->add_IRInstr(IRInstr::ldconst, Type::INT_64, {tmp_name, "0"});
cfg->add_bb(else1_bb);
}
//after
cfg->current_bb = after_if1_bb;
cfg->add_bb(after_if1_bb);
return tmp_name;
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTOr : public CProgASTExpression //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTOr::CProgASTOr(CProgASTExpression* lhs, CProgASTExpression* rhs) :
lhs_operand(lhs), rhs_operand(rhs)
{}
CProgASTOr::~CProgASTOr()
{
delete lhs_operand;
delete rhs_operand;
}
// ----------------------------------------------------- Public Member Functions
std::string CProgASTOr::build_ir(CFG* cfg) const
{
std::string lhs_name = lhs_operand->build_ir(cfg);
cfg->current_bb->add_IRInstr(IRInstr::cmp_null, cfg->get_var_type(lhs_name), {lhs_name});
std::string tmp_name = cfg->create_new_tempvar(Type::INT_64);
BasicBlock* test1_bb = cfg->current_bb;
BasicBlock* then1_bb = new BasicBlock(cfg, cfg->new_BB_name());
BasicBlock* after_if1_bb = new BasicBlock(cfg, cfg->new_BB_name());
BasicBlock* else1_bb = new BasicBlock(cfg, cfg->new_BB_name());
after_if1_bb->exit_true = test1_bb->exit_true;
after_if1_bb->exit_false = test1_bb->exit_false;
then1_bb->exit_true = after_if1_bb;
then1_bb->exit_false = nullptr;
test1_bb->exit_true = then1_bb;
test1_bb->exit_false = else1_bb;
//then
cfg->current_bb = then1_bb;
{
cfg->current_bb->add_IRInstr(IRInstr::ldconst, Type::INT_64, {tmp_name, "1"});
}
cfg->add_bb(then1_bb);
//else
{
cfg->current_bb = else1_bb;
else1_bb->exit_true = after_if1_bb;
else1_bb->exit_false = nullptr;
{
std::string rhs_name = rhs_operand->build_ir(cfg);
cfg->current_bb->add_IRInstr(IRInstr::cmp_null, cfg->get_var_type(rhs_name), {rhs_name});
BasicBlock* test2_bb = cfg->current_bb;
BasicBlock* then2_bb = new BasicBlock(cfg, cfg->new_BB_name());
BasicBlock* after_if2_bb = new BasicBlock(cfg, cfg->new_BB_name());
BasicBlock* else2_bb = new BasicBlock(cfg, cfg->new_BB_name());
after_if2_bb->exit_true = test2_bb->exit_true;
after_if2_bb->exit_false = test2_bb->exit_false;
then2_bb->exit_true = after_if2_bb;
then2_bb->exit_false = nullptr;
test2_bb->exit_true = then2_bb;
test2_bb->exit_false = else2_bb;
//then
cfg->current_bb = then2_bb;
cfg->current_bb->add_IRInstr(IRInstr::ldconst, Type::INT_64, {tmp_name, "1"});
cfg->add_bb(then2_bb);
//else
{
cfg->current_bb = else2_bb;
else2_bb->exit_true = after_if2_bb;
else2_bb->exit_false = nullptr;
else2_bb->add_IRInstr(IRInstr::ldconst, Type::INT_64, {tmp_name, "0"});
cfg->add_bb(else2_bb);
}
//after
cfg->current_bb = after_if2_bb;
cfg->add_bb(after_if2_bb);
}
cfg->add_bb(else1_bb);
}
//after
cfg->current_bb = after_if1_bb;
cfg->add_bb(after_if1_bb);
return tmp_name;
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTNot : public CProgASTExpression //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTNot::CProgASTNot(CProgASTExpression* expression) :
inner_expression(expression)
{}
CProgASTNot::~CProgASTNot()
{
delete inner_expression;
}
// ----------------------------------------------------- Public Member Functions
std::string CProgASTNot::build_ir(CFG* cfg) const
{
std::string exp_name = inner_expression->build_ir(cfg);
Type result_type = cfg->get_var_type(exp_name);
std::string tmp_name = cfg->create_new_tempvar(result_type);
cfg->current_bb->add_IRInstr(IRInstr::lnot, result_type, {tmp_name, exp_name});
return tmp_name;
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTLessThan : public CProgASTExpression //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTLessThan::CProgASTLessThan(CProgASTExpression* lhs, CProgASTExpression* rhs) :
lhs_operand(lhs), rhs_operand(rhs)
{}
CProgASTLessThan::~CProgASTLessThan()
{
delete lhs_operand;
delete rhs_operand;
}
// ----------------------------------------------------- Public Member Functions
std::string CProgASTLessThan::build_ir(CFG* cfg) const
{
std::string lhs_name = lhs_operand->build_ir(cfg);
std::string rhs_name = rhs_operand->build_ir(cfg);
std::string tmp_name = cfg->create_new_tempvar(Type::INT_64);
cfg->current_bb->add_IRInstr(IRInstr::cmp_lt, Type::INT_64, {tmp_name, lhs_name, rhs_name});
return tmp_name;
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTLessThanOrEqual : public CProgASTExpression //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTLessThanOrEqual::CProgASTLessThanOrEqual(CProgASTExpression* lhs, CProgASTExpression* rhs) :
lhs_operand(lhs), rhs_operand(rhs)
{}
CProgASTLessThanOrEqual::~CProgASTLessThanOrEqual()
{
delete lhs_operand;
delete rhs_operand;
}
// ----------------------------------------------------- Public Member Functions
std::string CProgASTLessThanOrEqual::build_ir(CFG* cfg) const
{
std::string lhs_name = lhs_operand->build_ir(cfg);
std::string rhs_name = rhs_operand->build_ir(cfg);
std::string tmp_name = cfg->create_new_tempvar(Type::INT_64);
cfg->current_bb->add_IRInstr(IRInstr::cmp_le, Type::INT_64, {tmp_name, lhs_name, rhs_name});
return tmp_name;
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTGreaterThan : public CProgASTExpression //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTGreaterThan::CProgASTGreaterThan(CProgASTExpression* lhs, CProgASTExpression* rhs) :
lhs_operand(lhs), rhs_operand(rhs)
{}
CProgASTGreaterThan::~CProgASTGreaterThan()
{
delete lhs_operand;
delete rhs_operand;
}
// ----------------------------------------------------- Public Member Functions
std::string CProgASTGreaterThan::build_ir(CFG* cfg) const
{
std::string lhs_name = lhs_operand->build_ir(cfg);
std::string rhs_name = rhs_operand->build_ir(cfg);
std::string tmp_name = cfg->create_new_tempvar(Type::INT_64);
cfg->current_bb->add_IRInstr(IRInstr::cmp_gt, Type::INT_64, {tmp_name, lhs_name, rhs_name});
return tmp_name;
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTGreaterThanOrEqual : public CProgASTExpression //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTGreaterThanOrEqual::CProgASTGreaterThanOrEqual(CProgASTExpression* lhs, CProgASTExpression* rhs) :
lhs_operand(lhs), rhs_operand(rhs)
{}
CProgASTGreaterThanOrEqual::~CProgASTGreaterThanOrEqual()
{
delete lhs_operand;
delete rhs_operand;
}
// ----------------------------------------------------- Public Member Functions
std::string CProgASTGreaterThanOrEqual::build_ir(CFG* cfg) const
{
std::string lhs_name = lhs_operand->build_ir(cfg);
std::string rhs_name = rhs_operand->build_ir(cfg);
std::string tmp_name = cfg->create_new_tempvar(Type::INT_64);
cfg->current_bb->add_IRInstr(IRInstr::cmp_ge, Type::INT_64, {tmp_name, lhs_name, rhs_name});
return tmp_name;
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTEqual : public CProgASTExpression //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTEqual::CProgASTEqual(CProgASTExpression* lhs, CProgASTExpression* rhs) :
lhs_operand(lhs), rhs_operand(rhs)
{}
CProgASTEqual::~CProgASTEqual()
{
delete lhs_operand;
delete rhs_operand;
}
// ----------------------------------------------------- Public Member Functions
std::string CProgASTEqual::build_ir(CFG* cfg) const
{
std::string lhs_name = lhs_operand->build_ir(cfg);
std::string rhs_name = rhs_operand->build_ir(cfg);
std::string tmp_name = cfg->create_new_tempvar(Type::INT_64);
cfg->current_bb->add_IRInstr(IRInstr::cmp_eq, Type::INT_64, {tmp_name, lhs_name, rhs_name});
return tmp_name;
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTNotEqual : public CProgASTExpression //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTNotEqual::CProgASTNotEqual(CProgASTExpression* lhs, CProgASTExpression* rhs) :
lhs_operand(lhs), rhs_operand(rhs)
{}
CProgASTNotEqual::~CProgASTNotEqual()
{
delete lhs_operand;
delete rhs_operand;
}
// ----------------------------------------------------- Public Member Functions
std::string CProgASTNotEqual::build_ir(CFG* cfg) const
{
std::string lhs_name = lhs_operand->build_ir(cfg);
std::string rhs_name = rhs_operand->build_ir(cfg);
std::string tmp_name = cfg->create_new_tempvar(Type::INT_64);
cfg->current_bb->add_IRInstr(IRInstr::cmp_ne, Type::INT_64, {tmp_name, lhs_name, rhs_name});
return tmp_name;
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTAddition : public CProgASTExpression //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTAddition::CProgASTAddition(CProgASTExpression* lhs, CProgASTExpression* rhs) :
lhs_operand(lhs), rhs_operand(rhs)
{}
CProgASTAddition::~CProgASTAddition()
{
delete lhs_operand;
delete rhs_operand;
}
// ----------------------------------------------------- Public Member Functions
std::string CProgASTAddition::build_ir(CFG* cfg) const
{
std::string lhs_name = lhs_operand->build_ir(cfg);
std::string rhs_name = rhs_operand->build_ir(cfg);
Type result_type = cfg->get_max_type(lhs_name, rhs_name);
std::string tmp_name = cfg->create_new_tempvar(result_type);
cfg->current_bb->add_IRInstr(IRInstr::add, result_type, {tmp_name, lhs_name, rhs_name});
return tmp_name;
}
////////////////////////////////////////////////////////////////////////////////
// class CProgASTSubtraction : public CProgASTExpression //
////////////////////////////////////////////////////////////////////////////////
// ---------------------------------------------------- Constructor / Destructor
CProgASTSubtraction::CProgASTSubtraction(CProgASTExpression* lhs, CProgASTExpression* rhs) :
lhs_operand(lhs), rhs_operand(rhs)