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Merge remote-tracking branch 'origin/backend' into midend

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rain2133
2025-08-01 14:06:20 +08:00
parent 1eedb55ca0 e8699d6d25
commit 999f2c6615
188 changed files with 611744 additions and 457 deletions
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743
src/midend/SysYIRGenerator.cpp
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@@ -16,6 +16,441 @@ using namespace std;
namespace sysy {
// std::vector<Value*> BinaryValueStack; ///< 用于存储value的栈
// std::vector<int> BinaryOpStack; ///< 用于存储二元表达式的操作符栈
// // 约定操作符：
// // 1: 'ADD', 2: 'SUB', 3: 'MUL', 4: 'DIV', 5: '%', 6: 'PLUS', 7: 'NEG', 8: 'NOT'
// enum BinaryOp {
// ADD = 1,
// SUB = 2,
// MUL = 3,
// DIV = 4,
// MOD = 5,
// PLUS = 6,
// NEG = 7,
// NOT = 8
// };
Value *SysYIRGenerator::promoteType(Value *value, Type *targetType) {
//如果是常量则直接返回相应的值
if (targetType == nullptr) {
return value; // 如果值为空，那就不需要转换
}
ConstantInteger* constInt = dynamic_cast<ConstantInteger *>(value);
ConstantFloating *constFloat = dynamic_cast<ConstantFloating *>(value);
if (constInt) {
if (targetType->isFloat()) {
return ConstantFloating::get(static_cast<float>(constInt->getInt()));
}
return constInt; // 如果目标类型是int，直接返回原值
} else if (constFloat) {
if (targetType->isInt()) {
return ConstantInteger::get(static_cast<int>(constFloat->getFloat()));
}
return constFloat; // 如果目标类型是float，直接返回原值
}
if (value->getType()->isInt() && targetType->isFloat()) {
return builder.createItoFInst(value);
} else if (value->getType()->isFloat() && targetType->isInt()) {
return builder.createFtoIInst(value);
}
// 如果类型已经匹配，直接返回原值
return value;
}
bool SysYIRGenerator::isRightAssociative(int op) {
return (op == BinaryOp::PLUS || op == BinaryOp::NEG || op == BinaryOp::NOT);
}
void SysYIRGenerator::compute() {
// 先将中缀表达式转换为后缀表达式
BinaryRPNStack.clear();
BinaryOpStack.clear();
int begin = BinaryExpStack.size() - BinaryExpLenStack.back(), end = BinaryExpStack.size();
for (int i = begin; i < end; i++) {
auto item = BinaryExpStack[i];
if (std::holds_alternative<sysy::Value *>(item)) {
// 如果是操作数 (Value*)，直接推入后缀表达式栈
BinaryRPNStack.push_back(item); // 直接 push_back item (ValueOrOperator类型)
} else {
// 如果是操作符
int currentOp = std::get<int>(item);
if (currentOp == LPAREN) {
// 左括号直接入栈
BinaryOpStack.push_back(currentOp);
} else if (currentOp == RPAREN) {
// 右括号：将操作符栈中的操作符弹出并添加到后缀表达式栈，直到遇到左括号
while (!BinaryOpStack.empty() && BinaryOpStack.back() != LPAREN) {
BinaryRPNStack.push_back(BinaryOpStack.back()); // 直接 push_back int
BinaryOpStack.pop_back();
}
if (!BinaryOpStack.empty() && BinaryOpStack.back() == LPAREN) {
BinaryOpStack.pop_back(); // 弹出左括号，但不添加到后缀表达式栈
} else {
// 错误：不匹配的右括号
std::cerr << "Error: Mismatched parentheses in expression." << std::endl;
return;
}
} else {
// 普通操作符
while (!BinaryOpStack.empty() && BinaryOpStack.back() != LPAREN) {
int stackTopOp = BinaryOpStack.back();
// 如果当前操作符优先级低于栈顶操作符优先级
// 或者 (当前操作符优先级等于栈顶操作符优先级 并且 栈顶操作符是左结合)
if (getOperatorPrecedence(currentOp) < getOperatorPrecedence(stackTopOp) ||
(getOperatorPrecedence(currentOp) == getOperatorPrecedence(stackTopOp) &&
!isRightAssociative(stackTopOp))) {
BinaryRPNStack.push_back(stackTopOp);
BinaryOpStack.pop_back();
} else {
break; // 否则当前操作符入栈
}
}
BinaryOpStack.push_back(currentOp); // 当前操作符入栈
}
}
}
// 遍历结束后，将操作符栈中剩余的所有操作符弹出并添加到后缀表达式栈
while (!BinaryOpStack.empty()) {
if (BinaryOpStack.back() == LPAREN) {
// 错误：不匹配的左括号
std::cerr << "Error: Mismatched parentheses in expression (unclosed parenthesis)." << std::endl;
return;
}
BinaryRPNStack.push_back(BinaryOpStack.back()); // 直接 push_back int
BinaryOpStack.pop_back();
}
// 弹出BinaryExpStack的表达式
while(begin < end) {
BinaryExpStack.pop_back();
BinaryExpLenStack.back()--;
end--;
}
// 计算后缀表达式
// 每次计算前清空操作数栈
BinaryValueStack.clear();
// 遍历后缀表达式栈
Type *commonType = nullptr;
for(const auto &item : BinaryRPNStack) {
if (std::holds_alternative<Value *>(item)) {
// 如果是操作数 (Value*) 检测他的类型
Value *value = std::get<Value *>(item);
if (commonType == nullptr) {
commonType = value->getType();
}
else if (value->getType() != commonType && value->getType()->isFloat()) {
// 如果当前值的类型与commonType不同且是float类型，则提升为float
commonType = Type::getFloatType();
break;
}
} else {
continue;
}
}
for (const auto &item : BinaryRPNStack) {
if (std::holds_alternative<sysy::Value *>(item)) {
// 如果是操作数 (Value*)，直接推入操作数栈
BinaryValueStack.push_back(std::get<sysy::Value *>(item));
} else {
// 如果是操作符
int op = std::get<int>(item);
Value *resultValue = nullptr;
Value *lhs = nullptr;
Value *rhs = nullptr;
Value *operand = nullptr;
switch (op) {
case BinaryOp::ADD:
case BinaryOp::SUB:
case BinaryOp::MUL:
case BinaryOp::DIV:
case BinaryOp::MOD: {
// 二元操作符需要两个操作数
if (BinaryValueStack.size() < 2) {
std::cerr << "Error: Not enough operands for binary operation: " << op << std::endl;
return; // 或者抛出异常
}
rhs = BinaryValueStack.back();
BinaryValueStack.pop_back();
lhs = BinaryValueStack.back();
BinaryValueStack.pop_back();
// 类型转换
lhs = promoteType(lhs, commonType);
rhs = promoteType(rhs, commonType);
// 尝试常量折叠
ConstantValue *lhsConst = dynamic_cast<ConstantValue *>(lhs);
ConstantValue *rhsConst = dynamic_cast<ConstantValue *>(rhs);
if (lhsConst && rhsConst) {
// 如果都是常量，直接计算结果
if (commonType == Type::getIntType()) {
int lhsVal = lhsConst->getInt();
int rhsVal = rhsConst->getInt();
switch (op) {
case BinaryOp::ADD: resultValue = ConstantInteger::get(lhsVal + rhsVal); break;
case BinaryOp::SUB: resultValue = ConstantInteger::get(lhsVal - rhsVal); break;
case BinaryOp::MUL: resultValue = ConstantInteger::get(lhsVal * rhsVal); break;
case BinaryOp::DIV:
if (rhsVal == 0) {
std::cerr << "Error: Division by zero." << std::endl;
return;
}
resultValue = sysy::ConstantInteger::get(lhsVal / rhsVal); break;
case BinaryOp::MOD:
if (rhsVal == 0) {
std::cerr << "Error: Modulo by zero." << std::endl;
return;
}
resultValue = sysy::ConstantInteger::get(lhsVal % rhsVal); break;
default:
std::cerr << "Error: Unknown binary operator for constants: " << op << std::endl;
return;
}
} else if (commonType == Type::getFloatType()) {
float lhsVal = lhsConst->getFloat();
float rhsVal = rhsConst->getFloat();
switch (op) {
case BinaryOp::ADD: resultValue = ConstantFloating::get(lhsVal + rhsVal); break;
case BinaryOp::SUB: resultValue = ConstantFloating::get(lhsVal - rhsVal); break;
case BinaryOp::MUL: resultValue = ConstantFloating::get(lhsVal * rhsVal); break;
case BinaryOp::DIV:
if (rhsVal == 0.0f) {
std::cerr << "Error: Division by zero." << std::endl;
return;
}
resultValue = sysy::ConstantFloating::get(lhsVal / rhsVal); break;
case BinaryOp::MOD:
std::cerr << "Error: Modulo operator not supported for float types." << std::endl;
return;
default:
std::cerr << "Error: Unknown binary operator for float constants: " << op << std::endl;
return;
}
} else {
std::cerr << "Error: Unsupported type for binary constant operation." << std::endl;
return;
}
} else {
// 否则，创建相应的IR指令
if (commonType == Type::getIntType()) {
switch (op) {
case BinaryOp::ADD: resultValue = builder.createAddInst(lhs, rhs); break;
case BinaryOp::SUB: resultValue = builder.createSubInst(lhs, rhs); break;
case BinaryOp::MUL: resultValue = builder.createMulInst(lhs, rhs); break;
case BinaryOp::DIV: resultValue = builder.createDivInst(lhs, rhs); break;
case BinaryOp::MOD: resultValue = builder.createRemInst(lhs, rhs); break;
}
} else if (commonType == Type::getFloatType()) {
switch (op) {
case BinaryOp::ADD: resultValue = builder.createFAddInst(lhs, rhs); break;
case BinaryOp::SUB: resultValue = builder.createFSubInst(lhs, rhs); break;
case BinaryOp::MUL: resultValue = builder.createFMulInst(lhs, rhs); break;
case BinaryOp::DIV: resultValue = builder.createFDivInst(lhs, rhs); break;
case BinaryOp::MOD:
std::cerr << "Error: Modulo operator not supported for float types." << std::endl;
return;
}
} else {
std::cerr << "Error: Unsupported type for binary instruction." << std::endl;
return;
}
}
break;
}
case BinaryOp::PLUS:
case BinaryOp::NEG:
case BinaryOp::NOT: {
// 一元操作符需要一个操作数
if (BinaryValueStack.empty()) {
std::cerr << "Error: Not enough operands for unary operation: " << op << std::endl;
return;
}
operand = BinaryValueStack.back();
BinaryValueStack.pop_back();
operand = promoteType(operand, commonType);
// 尝试常量折叠
ConstantInteger *constInt = dynamic_cast<ConstantInteger *>(operand);
ConstantFloating *constFloat = dynamic_cast<ConstantFloating *>(operand);
if (constInt || constFloat) {
// 如果是常量，直接计算结果
switch (op) {
case BinaryOp::PLUS: resultValue = operand; break;
case BinaryOp::NEG: {
if (constInt) {
resultValue = constInt->getNeg();
} else if (constFloat) {
resultValue = constFloat->getNeg();
} else {
std::cerr << "Error: Negation not supported for constant operand type." << std::endl;
return;
}
break;
}
case BinaryOp::NOT:
if (constInt) {
resultValue = sysy::ConstantInteger::get(constInt->getInt() == 0 ? 1 : 0);
} else if (constFloat) {
resultValue = sysy::ConstantInteger::get(constFloat->getFloat() == 0.0f ? 1 : 0);
} else {
std::cerr << "Error: Logical NOT not supported for constant operand type." << std::endl;
return;
}
break;
default:
std::cerr << "Error: Unknown unary operator for constants: " << op << std::endl;
return;
}
} else {
// 否则，创建相应的IR指令
switch (op) {
case BinaryOp::PLUS:
resultValue = operand; // 一元加指令通常直接返回操作数
break;
case BinaryOp::NEG: {
if (commonType == sysy::Type::getIntType()) {
resultValue = builder.createNegInst(operand);
} else if (commonType == sysy::Type::getFloatType()) {
resultValue = builder.createFNegInst(operand);
} else {
std::cerr << "Error: Negation not supported for operand type." << std::endl;
return;
}
break;
}
case BinaryOp::NOT:
// 逻辑非
if (commonType == sysy::Type::getIntType()) {
resultValue = builder.createNotInst(operand);
} else if (commonType == sysy::Type::getFloatType()) {
resultValue = builder.createFNotInst(operand);
} else {
std::cerr << "Error: Logical NOT not supported for operand type." << std::endl;
return;
}
break;
default:
std::cerr << "Error: Unknown unary operator for instructions: " << op << std::endl;
return;
}
}
break;
}
default:
std::cerr << "Error: Unknown operator " << op << " encountered in RPN stack." << std::endl;
return;
}
// 将计算结果或指令结果推入操作数栈
if (resultValue) {
BinaryValueStack.push_back(resultValue);
} else {
std::cerr << "Error: Result value is null after processing operator " << op << "!" << std::endl;
return;
}
}
}
// 后缀表达式处理完毕，操作数栈的栈顶就是最终结果
if (BinaryValueStack.empty()) {
std::cerr << "Error: No values left in BinaryValueStack after processing RPN." << std::endl;
return;
}
if (BinaryValueStack.size() > 1) {
std::cerr
<< "Warning: Multiple values left in BinaryValueStack after processing RPN. Expression might be malformed."
<< std::endl;
}
BinaryRPNStack.clear(); // 清空后缀表达式栈
BinaryOpStack.clear(); // 清空操作符栈
return;
}
Value* SysYIRGenerator::computeExp(SysYParser::ExpContext *ctx, Type* targetType){
if (ctx->addExp() == nullptr) {
assert(false && "ExpContext should have an addExp child!");
}
BinaryExpLenStack.push_back(0); // 进入新的层次时Push 0
visitAddExp(ctx->addExp());
// if(targetType == nullptr) {
// targetType = Type::getIntType(); // 默认目标类型为int
// }
compute();
// 最后一个Value应该是最终结果
Value* result = BinaryValueStack.back();
BinaryValueStack.pop_back(); // 移除结果值
result = promoteType(result, targetType); // 确保结果类型符合目标类型
// 检查当前层次的操作符数量
int ExpLen = BinaryExpLenStack.back();
BinaryExpLenStack.pop_back(); // 离开层次时将该层次
if (ExpLen > 0) {
std::cerr << "Warning: There are still " << ExpLen << " binary val or op left unprocessed in this level!" << std::endl;
return nullptr;
}
return result;
}
Value* SysYIRGenerator::computeAddExp(SysYParser::AddExpContext *ctx, Type* targetType){
// 根据AddExpContext中的操作符和操作数计算加法表达式
// 这里假设AddExpContext已经被正确填充
if (ctx->mulExp().size() == 0) {
assert(false && "AddExpContext should have a mulExp child!");
}
BinaryExpLenStack.push_back(0); // 进入新的层次时Push 0
visitMulExp(ctx->mulExp(0));
// BinaryValueStack.push_back(result);
for (int i = 1; i < ctx->mulExp().size(); i++) {
auto opNode = dynamic_cast<antlr4::tree::TerminalNode*>(ctx->children[2*i-1]);
int opType = opNode->getSymbol()->getType();
switch(opType) {
case SysYParser::ADD: BinaryExpStack.push_back(BinaryOp::ADD); BinaryExpLenStack.back()++; break;
case SysYParser::SUB: BinaryExpStack.push_back(BinaryOp::SUB); BinaryExpLenStack.back()++; break;
default: assert(false && "Unexpected operator in AddExp.");
}
// BinaryExpStack.push_back(opType);
visitMulExp(ctx->mulExp(i));
// BinaryValueStack.push_back(operand);
}
// if(targetType == nullptr) {
// targetType = Type::getIntType(); // 默认目标类型为int
// }
// 根据后缀表达式的逻辑计算
compute();
// 最后一个Value应该是最终结果
Value* result = BinaryValueStack.back();
BinaryValueStack.pop_back(); // 移除最后一个值，因为它已经被计算
result = promoteType(result, targetType); // 确保结果类型符合目标类型
int ExpLen = BinaryExpLenStack.back();
BinaryExpLenStack.pop_back(); // 离开层次时将该层次
if (ExpLen > 0) {
std::cerr << "Warning: There are still " << ExpLen << " binary val or op left unprocessed in this level!" << std::endl;
return nullptr;
}
return result;
}
Type* SysYIRGenerator::buildArrayType(Type* baseType, const std::vector<Value*>& dims){
Type* currentType = baseType;
// 从最内层维度开始构建 ArrayType
@@ -393,7 +828,8 @@ std::any SysYIRGenerator::visitBType(SysYParser::BTypeContext *ctx) {
}
std::any SysYIRGenerator::visitScalarInitValue(SysYParser::ScalarInitValueContext *ctx) {
Value* value = std::any_cast<Value *>(visitExp(ctx->exp()));
// Value* value = std::any_cast<Value *>(visitExp(ctx->exp()));
Value* value = computeExp(ctx->exp());
ArrayValueTree* result = new ArrayValueTree();
result->setValue(value);
return result;
@@ -408,13 +844,17 @@ std::any SysYIRGenerator::visitArrayInitValue(SysYParser::ArrayInitValueContext
return result;
}
std::any SysYIRGenerator::visitConstScalarInitValue(SysYParser::ConstScalarInitValueContext *ctx) {
std::any SysYIRGenerator::visitConstScalarInitValue(SysYParser::ConstScalarInitValueContext *ctx) {
Value* value = std::any_cast<Value *>(visitConstExp(ctx->constExp()));
ArrayValueTree* result = new ArrayValueTree();
result->setValue(value);
return result;
}
std::any SysYIRGenerator::visitConstExp(SysYParser::ConstExpContext *ctx){
return computeAddExp(ctx->addExp());
}
std::any SysYIRGenerator::visitConstArrayInitValue(SysYParser::ConstArrayInitValueContext *ctx) {
std::vector<ArrayValueTree *> children;
for (const auto &constInitVal : ctx->constInitVal())
@@ -570,8 +1010,8 @@ std::any SysYIRGenerator::visitAssignStmt(SysYParser::AssignStmtContext *ctx) {
vector<Value *> indices;
if (lVal->exp().size() > 0) {
// 如果有下标，访问表达式获取下标值
for (const auto &exp : lVal->exp()) {
Value* indexValue = std::any_cast<Value *>(visitExp(exp));
for (auto &exp : lVal->exp()) {
Value* indexValue = std::any_cast<Value *>(computeExp(exp));
indices.push_back(indexValue);
}
}
@@ -610,15 +1050,18 @@ std::any SysYIRGenerator::visitAssignStmt(SysYParser::AssignStmtContext *ctx) {
LValue = getGEPAddressInst(gepBasePointer, gepIndices);
}
Value* RValue = std::any_cast<Value *>(visitExp(ctx->exp())); // 右值
// Value* RValue = std::any_cast<Value *>(visitExp(ctx->exp())); // 右值
// 先推断 LValue 的类型
// 如果 LValue 是指向数组的指针，则需要根据 indices 获取正确的类型
// 如果 LValue 是标量，则直接使用其类型
// 注意：LValue 的类型可能是指向数组的指针 (e.g., int(*)[3]) 或者指向标量的指针 (e.g., int*) 也能推断
Type* LType = builder.getIndexedType(variable->getType(), indices);
Value* RValue = computeExp(ctx->exp(), LType); // 右值计算
Type* RType = RValue->getType();
// TODO:computeExp处理了类型转换，可以考虑删除判断逻辑
if (LType != RType) {
ConstantValue *constValue = dynamic_cast<ConstantValue *>(RValue);
if (constValue != nullptr) {
@@ -642,7 +1085,7 @@ std::any SysYIRGenerator::visitAssignStmt(SysYParser::AssignStmtContext *ctx) {
}
} else {
if (LType == Type::getFloatType()) {
RValue = builder.createIToFInst(RValue);
RValue = builder.createItoFInst(RValue);
} else { // 假设如果不是浮点型，就是整型
RValue = builder.createFtoIInst(RValue);
}
@@ -655,6 +1098,14 @@ std::any SysYIRGenerator::visitAssignStmt(SysYParser::AssignStmtContext *ctx) {
}
std::any SysYIRGenerator::visitExpStmt(SysYParser::ExpStmtContext *ctx) {
// 访问表达式
if (ctx->exp() != nullptr) {
computeExp(ctx->exp());
}
return std::any();
}
std::any SysYIRGenerator::visitIfStmt(SysYParser::IfStmtContext *ctx) {
// labels string stream
@@ -822,11 +1273,11 @@ std::any SysYIRGenerator::visitContinueStmt(SysYParser::ContinueStmtContext *ctx
std::any SysYIRGenerator::visitReturnStmt(SysYParser::ReturnStmtContext *ctx) {
Value* returnValue = nullptr;
if (ctx->exp() != nullptr) {
returnValue = std::any_cast<Value *>(visitExp(ctx->exp()));
}
Type* funcType = builder.getBasicBlock()->getParent()->getReturnType();
if (ctx->exp() != nullptr) {
returnValue = computeExp(ctx->exp(), funcType);
}
// TODOL 考虑删除类型转换判断逻辑
if (returnValue != nullptr && funcType!= returnValue->getType()) {
ConstantValue * constValue = dynamic_cast<ConstantValue *>(returnValue);
if (constValue != nullptr) {
@@ -849,7 +1300,7 @@ std::any SysYIRGenerator::visitReturnStmt(SysYParser::ReturnStmtContext *ctx) {
}
} else {
if (funcType == Type::getFloatType()) {
returnValue = builder.createIToFInst(returnValue);
returnValue = builder.createItoFInst(returnValue);
} else {
returnValue = builder.createFtoIInst(returnValue);
}
@@ -891,7 +1342,8 @@ std::any SysYIRGenerator::visitLValue(SysYParser::LValueContext *ctx) {
std::vector<Value *> dims;
for (const auto &exp : ctx->exp()) {
dims.push_back(std::any_cast<Value *>(visitExp(exp)));
Value* expValue = std::any_cast<Value *>(computeExp(exp));
dims.push_back(expValue);
}
// 1. 获取变量的声明维度数量
@@ -995,16 +1447,23 @@ std::any SysYIRGenerator::visitLValue(SysYParser::LValueContext *ctx) {
}
std::any SysYIRGenerator::visitPrimaryExp(SysYParser::PrimaryExpContext *ctx) {
if (ctx->exp() != nullptr)
return visitExp(ctx->exp());
if (ctx->lValue() != nullptr)
return visitLValue(ctx->lValue());
if (ctx->number() != nullptr)
return visitNumber(ctx->number());
if (ctx->exp() != nullptr) {
BinaryExpStack.push_back(BinaryOp::LPAREN);BinaryExpLenStack.back()++;
visitExp(ctx->exp());
BinaryExpStack.push_back(BinaryOp::RPAREN);BinaryExpLenStack.back()++;
}
if (ctx->lValue() != nullptr) {
// 如果是 lValue，将value压入栈中
BinaryExpStack.push_back(std::any_cast<Value *>(visitLValue(ctx->lValue())));BinaryExpLenStack.back()++;
}
if (ctx->number() != nullptr) {
BinaryExpStack.push_back(std::any_cast<Value *>(visitNumber(ctx->number())));BinaryExpLenStack.back()++;
}
if (ctx->string() != nullptr) {
cout << "String literal not supported in SysYIRGenerator." << endl;
}
return visitNumber(ctx->number());
return std::any();
}
std::any SysYIRGenerator::visitNumber(SysYParser::NumberContext *ctx) {
@@ -1074,7 +1533,7 @@ std::any SysYIRGenerator::visitCall(SysYParser::CallContext *ctx) {
if (formalParamExpectedValueType->isInt() && actualArgType->isFloat()) {
args[i] = builder.createFtoIInst(args[i]);
} else if (formalParamExpectedValueType->isFloat() && actualArgType->isInt()) {
args[i] = builder.createIToFInst(args[i]);
args[i] = builder.createItoFInst(args[i]);
}
// 2. 指针类型转换 (例如数组退化：`[N x T]*` 到 `T*`，或兼容指针类型之间) TODO：不清楚有没有这种样例
// 这种情况常见于数组参数，实参可能是一个更具体的数组指针类型，
@@ -1099,235 +1558,78 @@ std::any SysYIRGenerator::visitCall(SysYParser::CallContext *ctx) {
}
std::any SysYIRGenerator::visitUnaryExp(SysYParser::UnaryExpContext *ctx) {
if (ctx->primaryExp() != nullptr)
return visitPrimaryExp(ctx->primaryExp());
if (ctx->call() != nullptr)
return visitCall(ctx->call());
Value* value = std::any_cast<Value *>(visitUnaryExp(ctx->unaryExp()));
Value* result = value;
if (ctx->unaryOp()->SUB() != nullptr) {
ConstantValue * constValue = dynamic_cast<ConstantValue *>(value);
if (constValue != nullptr) {
if (constValue->isFloat()) {
result = ConstantFloating::get(-constValue->getFloat());
} else {
result = ConstantInteger::get(-constValue->getInt());
if (ctx->primaryExp() != nullptr) {
visitPrimaryExp(ctx->primaryExp());
} else if (ctx->call() != nullptr) {
BinaryExpStack.push_back(std::any_cast<Value *>(visitCall(ctx->call())));BinaryExpLenStack.back()++;
} else if (ctx->unaryOp() != nullptr) {
// 遇到一元操作符，将其压入 BinaryExpStack
auto opNode = dynamic_cast<antlr4::tree::TerminalNode*>(ctx->unaryOp()->children[0]);
int opType = opNode->getSymbol()->getType();
switch(opType) {
case SysYParser::ADD: BinaryExpStack.push_back(BinaryOp::PLUS); BinaryExpLenStack.back()++; break;
case SysYParser::SUB: BinaryExpStack.push_back(BinaryOp::NEG); BinaryExpLenStack.back()++; break;
case SysYParser::NOT: BinaryExpStack.push_back(BinaryOp::NOT); BinaryExpLenStack.back()++; break;
default: assert(false && "Unexpected operator in UnaryExp.");
}
} else if (value != nullptr) {
if (value->getType() == Type::getIntType()) {
result = builder.createNegInst(value);
} else {
result = builder.createFNegInst(value);
}
} else {
std::cout << "UnExp: value is nullptr." << std::endl;
assert(false);
}
} else if (ctx->unaryOp()->NOT() != nullptr) {
auto constValue = dynamic_cast<ConstantValue *>(value);
if (constValue != nullptr) {
if (constValue->isFloat()) {
result =
ConstantFloating::get(1 - (constValue->getFloat() != 0.0F ? 1 : 0));
} else {
result = ConstantInteger::get(1 - (constValue->getInt() != 0 ? 1 : 0));
}
} else if (value != nullptr) {
if (value->getType() == Type::getIntType()) {
result = builder.createNotInst(value);
} else {
result = builder.createFNotInst(value);
}
} else {
std::cout << "UnExp: value is nullptr." << std::endl;
assert(false);
}
visitUnaryExp(ctx->unaryExp());
}
return result;
return std::any();
}
std::any SysYIRGenerator::visitFuncRParams(SysYParser::FuncRParamsContext *ctx) {
std::vector<Value *> params;
for (const auto &exp : ctx->exp())
params.push_back(std::any_cast<Value *>(visitExp(exp)));
for (const auto &exp : ctx->exp()) {
auto param = std::any_cast<Value *>(computeExp(exp));
params.push_back(param);
}
return params;
}
std::any SysYIRGenerator::visitMulExp(SysYParser::MulExpContext *ctx) {
Value * result = std::any_cast<Value *>(visitUnaryExp(ctx->unaryExp(0)));
visitUnaryExp(ctx->unaryExp(0));
for (int i = 1; i < ctx->unaryExp().size(); i++) {
auto opNode = dynamic_cast<antlr4::tree::TerminalNode*>(ctx->children[2*i-1]);
int opType = opNode->getSymbol()->getType();
Value* operand = std::any_cast<Value *>(visitUnaryExp(ctx->unaryExp(i)));
Type* resultType = result->getType();
Type* operandType = operand->getType();
Type* floatType = Type::getFloatType();
if (resultType == floatType || operandType == floatType) {
// 如果有一个操作数是浮点数，则将两个操作数都转换为浮点数
if (operandType != floatType) {
ConstantValue * constValue = dynamic_cast<ConstantValue *>(operand);
if (constValue != nullptr) {
if(dynamic_cast<ConstantInteger *>(constValue)) {
// 如果是整型常量，转换为浮点型
operand = ConstantFloating::get(static_cast<float>(constValue->getInt()));
} else if (dynamic_cast<ConstantFloating *>(constValue)) {
// 如果是浮点型常量，直接使用
operand = ConstantFloating::get(static_cast<float>(constValue->getFloat()));
}
}
else
operand = builder.createIToFInst(operand);
} else if (resultType != floatType) {
ConstantValue* constResult = dynamic_cast<ConstantValue *>(result);
if (constResult != nullptr) {
if(dynamic_cast<ConstantInteger *>(constResult)) {
// 如果是整型常量，转换为浮点型
result = ConstantFloating::get(static_cast<float>(constResult->getInt()));
} else if (dynamic_cast<ConstantFloating *>(constResult)) {
// 如果是浮点型常量，直接使用
result = ConstantFloating::get(static_cast<float>(constResult->getFloat()));
}
}
else
result = builder.createIToFInst(result);
}
ConstantFloating* constResult = dynamic_cast<ConstantFloating *>(result);
ConstantFloating* constOperand = dynamic_cast<ConstantFloating *>(operand);
if (opType == SysYParser::MUL) {
if ((constOperand != nullptr) && (constResult != nullptr)) {
result = ConstantFloating::get(constResult->getFloat() *
constOperand->getFloat());
} else {
result = builder.createFMulInst(result, operand);
}
} else if (opType == SysYParser::DIV) {
if ((constOperand != nullptr) && (constResult != nullptr)) {
result = ConstantFloating::get(constResult->getFloat() /
constOperand->getFloat());
} else {
result = builder.createFDivInst(result, operand);
}
} else {
// float类型的取模操作不允许
std::cout << "MulExp: float type mod operation is not allowed." << std::endl;
assert(false);
}
} else {
ConstantInteger *constResult = dynamic_cast<ConstantInteger *>(result);
ConstantInteger *constOperand = dynamic_cast<ConstantInteger *>(operand);
if (opType == SysYParser::MUL) {
if ((constOperand != nullptr) && (constResult != nullptr))
result = ConstantInteger::get(constResult->getInt() * constOperand->getInt());
else
result = builder.createMulInst(result, operand);
} else if (opType == SysYParser::DIV) {
if ((constOperand != nullptr) && (constResult != nullptr))
result = ConstantInteger::get(constResult->getInt() / constOperand->getInt());
else
result = builder.createDivInst(result, operand);
} else {
if ((constOperand != nullptr) && (constResult != nullptr))
result = ConstantInteger::get(constResult->getInt() % constOperand->getInt());
else
result = builder.createRemInst(result, operand);
}
switch(opType) {
case SysYParser::MUL: BinaryExpStack.push_back(BinaryOp::MUL); BinaryExpLenStack.back()++; break;
case SysYParser::DIV: BinaryExpStack.push_back(BinaryOp::DIV); BinaryExpLenStack.back()++; break;
case SysYParser::MOD: BinaryExpStack.push_back(BinaryOp::MOD); BinaryExpLenStack.back()++; break;
default: assert(false && "Unexpected operator in MulExp.");
}
visitUnaryExp(ctx->unaryExp(i));
}
return result;
return std::any();
}
std::any SysYIRGenerator::visitAddExp(SysYParser::AddExpContext *ctx) {
Value* result = std::any_cast<Value *>(visitMulExp(ctx->mulExp(0)));
visitMulExp(ctx->mulExp(0));
for (int i = 1; i < ctx->mulExp().size(); i++) {
auto opNode = dynamic_cast<antlr4::tree::TerminalNode*>(ctx->children[2*i-1]);
int opType = opNode->getSymbol()->getType();
Value* operand = std::any_cast<Value *>(visitMulExp(ctx->mulExp(i)));
Type* resultType = result->getType();
Type* operandType = operand->getType();
Type* floatType = Type::getFloatType();
if (resultType == floatType || operandType == floatType) {
// 类型转换
if (operandType != floatType) {
ConstantValue * constOperand = dynamic_cast<ConstantValue *>(operand);
if (constOperand != nullptr) {
if(dynamic_cast<ConstantInteger *>(constOperand)) {
// 如果是整型常量，转换为浮点型
operand = ConstantFloating::get(static_cast<float>(constOperand->getInt()));
} else if (dynamic_cast<ConstantFloating *>(constOperand)) {
// 如果是浮点型常量，直接使用
operand = ConstantFloating::get(static_cast<float>(constOperand->getFloat()));
}
}
else
operand = builder.createIToFInst(operand);
} else if (resultType != floatType) {
ConstantValue * constResult = dynamic_cast<ConstantValue *>(result);
if (constResult != nullptr) {
if(dynamic_cast<ConstantInteger *>(constResult)) {
// 如果是整型常量，转换为浮点型
result = ConstantFloating::get(static_cast<float>(constResult->getInt()));
} else if (dynamic_cast<ConstantFloating *>(constResult)) {
// 如果是浮点型常量，直接使用
result = ConstantFloating::get(static_cast<float>(constResult->getFloat()));
}
}
else
result = builder.createIToFInst(result);
}
ConstantFloating *constResult = dynamic_cast<ConstantFloating *>(result);
ConstantFloating *constOperand = dynamic_cast<ConstantFloating *>(operand);
if (opType == SysYParser::ADD) {
if ((constResult != nullptr) && (constOperand != nullptr))
result = ConstantFloating::get(constResult->getFloat() + constOperand->getFloat());
else
result = builder.createFAddInst(result, operand);
} else {
if ((constResult != nullptr) && (constOperand != nullptr))
result = ConstantFloating::get(constResult->getFloat() - constOperand->getFloat());
else
result = builder.createFSubInst(result, operand);
}
} else {
ConstantInteger *constResult = dynamic_cast<ConstantInteger *>(result);
ConstantInteger *constOperand = dynamic_cast<ConstantInteger *>(operand);
if (opType == SysYParser::ADD) {
if ((constResult != nullptr) && (constOperand != nullptr))
result = ConstantInteger::get(constResult->getInt() + constOperand->getInt());
else
result = builder.createAddInst(result, operand);
} else {
if ((constResult != nullptr) && (constOperand != nullptr))
result = ConstantInteger::get(constResult->getInt() - constOperand->getInt());
else
result = builder.createSubInst(result, operand);
}
switch(opType) {
case SysYParser::ADD: BinaryExpStack.push_back(BinaryOp::ADD); BinaryExpLenStack.back()++; break;
case SysYParser::SUB: BinaryExpStack.push_back(BinaryOp::SUB); BinaryExpLenStack.back()++; break;
default: assert(false && "Unexpected operator in AddExp.");
}
visitMulExp(ctx->mulExp(i));
}
return result;
return std::any();
}
std::any SysYIRGenerator::visitRelExp(SysYParser::RelExpContext *ctx) {
Value* result = std::any_cast<Value *>(visitAddExp(ctx->addExp(0)));
Value* result = computeAddExp(ctx->addExp(0));
for (int i = 1; i < ctx->addExp().size(); i++) {
auto opNode = dynamic_cast<antlr4::tree::TerminalNode*>(ctx->children[2*i-1]);
int opType = opNode->getSymbol()->getType();
Value* operand = std::any_cast<Value *>(visitAddExp(ctx->addExp(i)));
Value* operand = computeAddExp(ctx->addExp(i));
Type* resultType = result->getType();
Type* operandType = operand->getType();
@@ -1366,7 +1668,7 @@ std::any SysYIRGenerator::visitRelExp(SysYParser::RelExpContext *ctx) {
}
}
else
result = builder.createIToFInst(result);
result = builder.createItoFInst(result);
}
if (operandType != floatType) {
@@ -1380,7 +1682,7 @@ std::any SysYIRGenerator::visitRelExp(SysYParser::RelExpContext *ctx) {
}
}
else
operand = builder.createIToFInst(operand);
operand = builder.createItoFInst(operand);
}
@@ -1407,6 +1709,7 @@ std::any SysYIRGenerator::visitRelExp(SysYParser::RelExpContext *ctx) {
std::any SysYIRGenerator::visitEqExp(SysYParser::EqExpContext *ctx) {
// TODO：其实已经保证了result是一个int类型的值可以删除冗余判断逻辑
Value * result = std::any_cast<Value *>(visitRelExp(ctx->relExp(0)));
for (int i = 1; i < ctx->relExp().size(); i++) {
@@ -1445,7 +1748,7 @@ std::any SysYIRGenerator::visitEqExp(SysYParser::EqExpContext *ctx) {
}
}
else
result = builder.createIToFInst(result);
result = builder.createItoFInst(result);
}
if (operandType != floatType) {
if (constOperand != nullptr) {
@@ -1458,7 +1761,7 @@ std::any SysYIRGenerator::visitEqExp(SysYParser::EqExpContext *ctx) {
}
}
else
operand = builder.createIToFInst(operand);
operand = builder.createItoFInst(operand);
}
if (opType == SysYParser::EQ) result = builder.createFCmpEQInst(result, operand);
@@ -1567,7 +1870,7 @@ void Utils::tree2Array(Type *type, ArrayValueTree *root,
assert(false && "Unknown constant type for float conversion.");
}
else
result.push_back(builder->createIToFInst(value));
result.push_back(builder->createItoFInst(value));
} else {
ConstantValue* constValue = dynamic_cast<ConstantValue *>(value);