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Finish VarDef

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Odeinjul 12 months ago
parent 0e256196e6
commit 1a59368ede
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GPG Key ID: E384228B2B38FFBB
2 changed files with 92 additions and 22 deletions
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2
CMakeLists.txt
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@ -4,7 +4,7 @@ cmake_minimum_required(VERSION 3.5)
set(CMAKE_CXX_STANDARD 14)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O0 -Wall -Wextra -Wno-unused -Wshadow -Werror -g -pedantic")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O0 -Wall -Wextra -Wno-unused -Wshadow -g -pedantic")
# include generated files in project environment
include_directories(${CMAKE_CURRENT_BINARY_DIR})

112
src/SysYFIRBuilder/IRBuilder.cpp
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@ -13,9 +13,10 @@ namespace IR
// to store state
// store temporary value
Ptr<Value> tmp_val = nullptr;
std::vector<SysYF::Ptr<Type>> funcFParam;
int exprRes = 0;
int tmpConstVal = 0;
Ptr<Value> tmpVal = nullptr;
std::vector<Ptr<Type>> funcFParam;
std::vector<Ptr<Value>> arrayInitializer;
std::string curFuncName = "";
Ptr<SysYF::IR::Instruction> tmpInst;
bool isFloat = false;
@ -102,23 +103,59 @@ void IRBuilder::visit(SyntaxTree::FuncParam &node) {
void IRBuilder::visit(SyntaxTree::VarDef &node) {
// TODO： high dim array (not now)
Ptr<Value> arrayLength;
int arrayLength;
Ptr<Value> initVal;
if (node.is_constant) {
assert(node.is_inited);
switch (node.btype) {
case (SyntaxTree::Type::INT):
if (!node.array_length.empty()) {
node.array_length[0]->accept(*this);
// expr need to return ConstVal if possible
arrayLength = tmpConstVal;
auto arrayType = ArrayType::get(INT32_T, arrayLength);
auto alloca = builder->create_alloca(arrayType);
arrayInitializer.clear();
// const int a[] = {};
int i = 0;
for ( const auto &expr : node.initializers->elementList) {
expr->accept(*this);
auto tmpInit = tmpInst;
tmpInst = builder->create_gep(alloca, {CONST_INT(0), CONST_INT(i)});
builder->create_store(tmpInit, tmpInst);
i ++;
}
} else {
// const int a = 1;
auto alloca = builder->create_alloca(INT32_T);
node.initializers->expr->accept(*this);
initVal = tmpInst;
builder->create_store(initVal, alloca);
}
break;
case (SyntaxTree::Type::FLOAT):
if (!node.array_length.empty()) {
node.array_length[0]->accept(*this);
// expr need to return ConstVal if possible
arrayLength = tmpConstVal;
auto arrayType = ArrayType::get(FLOAT_T, arrayLength);
auto alloca = builder->create_alloca(arrayType);
arrayInitializer.clear();
// const int a[] = {};
int i = 0;
for ( const auto &expr : node.initializers->elementList) {
expr->accept(*this);
auto tmpInit = tmpInst;
tmpInst = builder->create_gep(alloca, {CONST_INT(0), CONST_INT(i)});
builder->create_store(tmpInit, tmpInst);
i ++;
}
} else {
// const float a = 1.0;
auto alloca = builder->create_alloca(FLOAT_T);
node.initializers->expr->accept(*this);
initVal = tmpInst;
builder->create_store(initVal, alloca);
}
break;
default:
@ -128,12 +165,28 @@ void IRBuilder::visit(SyntaxTree::VarDef &node) {
switch (node.btype) {
case (SyntaxTree::Type::INT):
if (!node.array_length.empty()) {
node.array_length[0]->accept(*this);
// expr need to return ConstVal if possible
arrayLength = tmpConstVal;
auto arrayType = ArrayType::get(INT32_T, arrayLength);
auto alloca = builder->create_alloca(arrayType);
if (node.is_inited) {
int i = 0;
for ( const auto &expr : node.initializers->elementList) {
expr->accept(*this);
auto tmpInit = tmpInst;
tmpInst = builder->create_gep(alloca, {CONST_INT(0), CONST_INT(i)});
builder->create_store(tmpInit, tmpInst);
i ++;
}
} else {
;
}
} else {
auto alloca = builder->create_alloca(INT32_T);
if (node.is_inited) {
node.initializers->expr->accept(*this);
initVal = tmpInst;
builder->create_store(initVal, alloca);
} else {
builder->create_store(CONST_INT(0), alloca);
@ -143,15 +196,32 @@ void IRBuilder::visit(SyntaxTree::VarDef &node) {
break;
case (SyntaxTree::Type::FLOAT):
if (!node.array_length.empty()) {
node.array_length[0]->accept(*this);
// expr need to return ConstVal if possible
arrayLength = tmpConstVal;
auto arrayType = ArrayType::get(FLOAT_T, arrayLength);
auto alloca = builder->create_alloca(arrayType);
if (node.is_inited) {
int i = 0;
for ( const auto &expr : node.initializers->elementList) {
expr->accept(*this);
auto tmpInit = tmpInst;
tmpInst = builder->create_gep(alloca, {CONST_INT(0), CONST_INT(i)});
builder->create_store(tmpInit, tmpInst);
i ++;
}
} else {
;
}
} else {
auto alloca = builder->create_alloca(FLOAT_T);
if (node.is_inited) {
node.initializers->expr->accept(*this);
initVal = tmpInst;
builder->create_store(initVal, alloca);
} else {
builder->create_store(CONST_FLOAT(0), alloca);
builder->create_store(CONST_FLOAT(0.0), alloca);
scope.push(node.name, alloca);
}
}
@ -194,22 +264,22 @@ void IRBuilder::visit(SyntaxTree::AssignStmt &node) {
void IRBuilder::visit(SyntaxTree::Literal &node) {
switch(node.literal_type) {
case SyntaxTree::Type::INT:
tmp_val = CONST_INT(node.int_const);
tmpVal = CONST_INT(node.int_const);
isFloat = false;
break;
case SyntaxTree::Type::FLOAT:
tmp_val = CONST_FLOAT(node.float_const);
tmpVal = CONST_FLOAT(node.float_const);
isFloat = true;
break;
default:
tmp_val = CONST_INT(0);
tmpVal = CONST_INT(0);
break;
}
}
void IRBuilder::visit(SyntaxTree::ReturnStmt &node) {
node.ret->accept(*this);
builder->create_ret(tmp_val);
builder->create_ret(tmpVal);
}
void IRBuilder::visit(SyntaxTree::BlockStmt &node) {
@ -417,7 +487,7 @@ void IRBuilder::visit(SyntaxTree::FuncCallStmt &node) {
std::vector<Ptr<Value>> funcRParam;
for (const auto &param : node.params) {
param->accept(*this);
funcRParam.push_back(tmp_val);
funcRParam.push_back(tmpVal);
}
builder->create_call(curFunc, funcRParam);
}
@ -425,7 +495,7 @@ void IRBuilder::visit(SyntaxTree::FuncCallStmt &node) {
void IRBuilder::visit(SyntaxTree::IfStmt &node) {
auto curFunc = builder->get_insert_block()->get_parent();
node.cond_exp->accept(*this);
auto cond = tmp_val;
auto cond = tmpVal;
auto trueBB = BasicBlock::create(module, "trueBB_if", curFunc);
auto falseBB = BasicBlock::create(module, "falseBB_if", curFunc);
builder->create_cond_br(cond, trueBB, falseBB);
@ -447,7 +517,7 @@ void IRBuilder::visit(SyntaxTree::WhileStmt &node) {
builder->set_insert_point(condBB);
node.cond_exp->accept(*this);
auto cond = tmp_val;
auto cond = tmpVal;
builder->create_cond_br(cond, bodyBB, afterBB);

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