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C++ ExpressionNode::generateILOCCode方法代码示例

本文整理汇总了C++中ExpressionNode::generateILOCCode方法的典型用法代码示例。如果您正苦于以下问题:C++ ExpressionNode::generateILOCCode方法的具体用法?C++ ExpressionNode::generateILOCCode怎么用?C++ ExpressionNode::generateILOCCode使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在ExpressionNode的用法示例。


在下文中一共展示了ExpressionNode::generateILOCCode方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: generateILOCCode

void IdentifierNode::generateILOCCode(Node* context) {
	if (this->children->size() == 0) { // Variable
		Symbol* symbol = Scope::getSymbol(this->symbol->getText());
		Node* symbolScope = Scope::getScope(this->symbol->getText());
		std::string* varAddressRegisterName = ILOC::getRegister(symbol->getText());
		std::string registerBaseAddress = (symbolScope->getNodeType() == Common::NT_PROGRAM) ? "bss" : "fp";
		std::stringstream symbolOffsetStr;
		symbolOffsetStr << symbol->getOffset();
		ILOC* instruction = new ILOC(Common::ILOC_LOADAI, registerBaseAddress, symbolOffsetStr.str(), *varAddressRegisterName, "");
		this->addInstruction(instruction);
		this->setLastRegister(*varAddressRegisterName);
	} else { // vector
		Symbol* symbol = Scope::getSymbol(this->symbol->getText());
		Node* symbolScope = Scope::getScope(this->symbol->getText());
		std::string* vectorAddressRegisterName = ILOC::getRegister(symbol->getText());
		std::string registerBaseAddress = (symbolScope->getNodeType() == Common::NT_PROGRAM) ? "bss" : "fp";
		std::stringstream symbolOffsetStr;
		symbolOffsetStr << symbol->getOffset();
		ILOC* instruction = new ILOC(Common::ILOC_ADDI, registerBaseAddress, symbolOffsetStr.str(), *vectorAddressRegisterName, "");
		this->addInstruction(instruction);
		std::string lastBaseRegister = *vectorAddressRegisterName;
		std::string* indexRegisterName;
		for (unsigned int i = 0; i < this->children->size(); i++) {
			ExpressionNode* expression = dynamic_cast<ExpressionNode*>(this->children->at(i));
			expression->generateILOCCode(this);
			std::stringstream indexStream;
			indexStream << i;
			std::string* multResultRegisterName = ILOC::getRegister("INST_MULT_VEC_RESULT_" + indexStream.str());
			indexRegisterName = ILOC::getRegister("INDEX_REGISTER_NAME_" + indexStream.str());
			ILOC* instructionMult = new ILOC(Common::ILOC_MULTI, expression->getLastRegister(), "4", *multResultRegisterName, "");
			ILOC* instructionLoadAO = new ILOC(Common::ILOC_LOADA0, lastBaseRegister, *multResultRegisterName, *indexRegisterName, "");
			lastBaseRegister = *indexRegisterName;
			this->addInstruction(instructionMult);
			this->addInstruction(instructionLoadAO);
		}
		this->setLastRegister(*indexRegisterName);
	}
}
开发者ID:anibalmorales,项目名称:compiladores,代码行数:38,代码来源:identifiernode.cpp


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