[midend]重构了src目录
This commit is contained in:
Lixuanwang
505
src/midend/SysYIRPrinter.cpp
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505
src/midend/SysYIRPrinter.cpp
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#include "SysYIRPrinter.h"
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#include <cassert>
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#include <fstream>
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#include <iostream>
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#include <string>
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#include "IR.h" // 确保IR.h包含了ArrayType、GetElementPtrInst等的定义
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namespace sysy {
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void SysYPrinter::printIR() {
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const auto &functions = pModule->getFunctions();
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//TODO: Print target datalayout and triple (minimal required by LLVM)
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printGlobalVariable();
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for (const auto &iter : functions) {
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if (iter.second->getName() == "main") {
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printFunction(iter.second.get());
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break;
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}
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}
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for (const auto &iter : functions) {
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if (iter.second->getName() != "main") {
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printFunction(iter.second.get());
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}
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}
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}
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std::string SysYPrinter::getTypeString(Type *type) {
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if (type->isVoid()) {
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return "void";
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} else if (type->isInt()) {
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return "i32";
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} else if (type->isFloat()) {
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return "float";
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} else if (auto ptrType = dynamic_cast<PointerType*>(type)) {
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// 递归打印指针指向的类型，然后加上 '*'
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return getTypeString(ptrType->getBaseType()) + "*";
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} else if (auto funcType = dynamic_cast<FunctionType*>(type)) {
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// 对于函数类型，打印其返回类型
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// 注意：这里可能需要更完整的函数签名打印，取决于你的IR表示方式
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// 比如：`retType (paramType1, paramType2, ...)`
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// 但为了简化和LLVM IR兼容性，通常在定义时完整打印
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return getTypeString(funcType->getReturnType());
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} else if (auto arrayType = dynamic_cast<ArrayType*>(type)) { // 新增：处理数组类型
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// 打印格式为 [num_elements x element_type]
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return "[" + std::to_string(arrayType->getNumElements()) + " x " + getTypeString(arrayType->getElementType()) + "]";
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}
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assert(false && "Unsupported type");
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return "";
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}
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std::string SysYPrinter::getValueName(Value *value) {
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if (auto global = dynamic_cast<GlobalValue*>(value)) {
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return "@" + global->getName();
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} else if (auto inst = dynamic_cast<Instruction*>(value)) {
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return "%" + inst->getName();
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} else if (auto constInt = dynamic_cast<ConstantInteger*>(value)) { // 优先匹配具体的常量类型
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return std::to_string(constInt->getInt());
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} else if (auto constFloat = dynamic_cast<ConstantFloating*>(value)) { // 优先匹配具体的常量类型
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return std::to_string(constFloat->getFloat());
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} else if (auto constUndef = dynamic_cast<UndefinedValue*>(value)) { // 如果有Undef类型
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return "undef";
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} else if (auto constVal = dynamic_cast<ConstantValue*>(value)) { // fallback for generic ConstantValue
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// 这里的逻辑可能需要根据你ConstantValue的实际设计调整
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// 确保它能处理所有可能的ConstantValue
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if (constVal->getType()->isFloat()) {
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return std::to_string(constVal->getFloat());
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}
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return std::to_string(constVal->getInt());
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} else if (auto constVar = dynamic_cast<ConstantVariable*>(value)) {
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return constVar->getName(); // 假设ConstantVariable有自己的名字或通过getByIndices获取值
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} else if (auto argVar = dynamic_cast<Argument*>(value)) {
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return "%" + argVar->getName(); // 假设ArgumentVariable有自己的名字
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}
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assert(false && "Unknown value type or unable to get value name");
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return "";
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}
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std::string SysYPrinter::getBlockName(BasicBlock *block) {
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static int blockId = 0; // 用于生成唯一的基本块ID
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if (block->getName().empty()) {
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return "bb" + std::to_string(blockId++); // 如果没有名字，生成一个唯一的基本块ID
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} else {
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return block->getName();
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}
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}
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void SysYPrinter::printType(Type *type) {
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std::cout << getTypeString(type);
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}
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void SysYPrinter::printValue(Value *value) {
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std::cout << getValueName(value);
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}
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void SysYPrinter::printGlobalVariable() {
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auto &globals = pModule->getGlobals();
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for (const auto &global : globals) {
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std::cout << "@" << global->getName() << " = global ";
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// 全局变量的类型是一个指针，指向其基类型 (可能是 ArrayType 或 Integer/FloatType)
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auto globalVarBaseType = dynamic_cast<PointerType *>(global->getType())->getBaseType();
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printType(globalVarBaseType); // 打印全局变量的实际类型 (例如 i32 或 [10 x i32])
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std::cout << " ";
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// 检查是否是数组类型 (通过检查 globalVarBaseType 是否是 ArrayType)
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if (globalVarBaseType->isArray()) {
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// 数组初始化器
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std::cout << "["; // LLVM IR 数组初始化器格式: [type value, type value, ...]
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auto values = global->getInitValues(); // 假设 getInitValues() 返回一个 ValueCounter
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const std::vector<sysy::Value *> &counterValues = values.getValues(); // 获取所有值
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for (size_t i = 0; i < counterValues.size(); i++) {
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if (i > 0) std::cout << ", ";
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// 打印元素类型，这个元素类型应该是数组的最终元素类型，例如 i32 或 float
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// 可以从 globalVarBaseType 逐层剥离得到最终元素类型，但这里简化为直接从值获取
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printType(counterValues[i]->getType());
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std::cout << " ";
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printValue(counterValues[i]);
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}
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std::cout << "]";
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} else {
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// 标量初始化器
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// 假设标量全局变量的初始化值通过 getByIndex(0) 获取
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Value* initVal = global->getByIndex(0);
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printType(initVal->getType()); // 打印标量值的类型
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std::cout << " ";
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printValue(initVal); // 打印标量值
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}
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std::cout << ", align 4" << std::endl;
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}
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}
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void SysYPrinter::printBlock(BasicBlock *block) {
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std::cout << getBlockName(block);
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}
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void SysYPrinter::printFunction(Function *function) {
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// Function signature
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std::cout << "define ";
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printType(function->getReturnType());
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std::cout << " @" << function->getName() << "(";
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auto entryBlock = function->getEntryBlock();
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const auto &args_types = function->getParamTypes();
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auto &args = function->getArguments();
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int i = 0;
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for (const auto &args_type : args_types) {
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if (i > 0) std::cout << ", ";
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printType(args_type);
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std::cout << " %" << args[i]->getName();
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i++;
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}
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std::cout << ") {" << std::endl;
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// Function body
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for (const auto &blockIter : function->getBasicBlocks()) {
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// Basic block label
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BasicBlock* blockPtr = blockIter.get();
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if (!blockPtr->getName().empty()) {
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std::cout << blockPtr->getName() << ":" << std::endl;
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}
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// Instructions
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for (const auto &instIter : blockIter->getInstructions()) {
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auto inst = instIter.get();
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std::cout << " ";
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printInst(inst);
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}
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}
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std::cout << "}" << std::endl << std::endl;
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}
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void SysYPrinter::printInst(Instruction *pInst) {
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using Kind = Instruction::Kind;
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switch (pInst->getKind()) {
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case Kind::kAdd:
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case Kind::kSub:
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case Kind::kMul:
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case Kind::kDiv:
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case Kind::kRem:
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case Kind::kFAdd:
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case Kind::kFSub:
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case Kind::kFMul:
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case Kind::kFDiv:
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case Kind::kICmpEQ:
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case Kind::kICmpNE:
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case Kind::kICmpLT:
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case Kind::kICmpGT:
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case Kind::kICmpLE:
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case Kind::kICmpGE:
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case Kind::kFCmpEQ:
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case Kind::kFCmpNE:
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case Kind::kFCmpLT:
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case Kind::kFCmpGT:
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case Kind::kFCmpLE:
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case Kind::kFCmpGE:
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case Kind::kAnd:
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case Kind::kOr: {
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auto binInst = dynamic_cast<BinaryInst *>(pInst);
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// Print result variable if exists
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if (!binInst->getName().empty()) {
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std::cout << "%" << binInst->getName() << " = ";
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}
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// Operation name
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switch (pInst->getKind()) {
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case Kind::kAdd: std::cout << "add"; break;
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case Kind::kSub: std::cout << "sub"; break;
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case Kind::kMul: std::cout << "mul"; break;
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case Kind::kDiv: std::cout << "sdiv"; break;
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case Kind::kRem: std::cout << "srem"; break;
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case Kind::kFAdd: std::cout << "fadd"; break;
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case Kind::kFSub: std::cout << "fsub"; break;
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case Kind::kFMul: std::cout << "fmul"; break;
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case Kind::kFDiv: std::cout << "fdiv"; break;
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case Kind::kICmpEQ: std::cout << "icmp eq"; break;
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case Kind::kICmpNE: std::cout << "icmp ne"; break;
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case Kind::kICmpLT: std::cout << "icmp slt"; break; // LLVM uses slt/sgt for signed less/greater than
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case Kind::kICmpGT: std::cout << "icmp sgt"; break;
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case Kind::kICmpLE: std::cout << "icmp sle"; break;
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case Kind::kICmpGE: std::cout << "icmp sge"; break;
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case Kind::kFCmpEQ: std::cout << "fcmp oeq"; break; // oeq for ordered equal
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case Kind::kFCmpNE: std::cout << "fcmp one"; break; // one for ordered not equal
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case Kind::kFCmpLT: std::cout << "fcmp olt"; break; // olt for ordered less than
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case Kind::kFCmpGT: std::cout << "fcmp ogt"; break; // ogt for ordered greater than
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case Kind::kFCmpLE: std::cout << "fcmp ole"; break; // ole for ordered less than or equal
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case Kind::kFCmpGE: std::cout << "fcmp oge"; break; // oge for ordered greater than or equal
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case Kind::kAnd: std::cout << "and"; break;
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case Kind::kOr: std::cout << "or"; break;
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default: break; // Should not reach here
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}
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// Types and operands
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std::cout << " ";
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printType(binInst->getType());
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std::cout << " ";
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printValue(binInst->getLhs());
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std::cout << ", ";
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printValue(binInst->getRhs());
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std::cout << std::endl;
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} break;
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case Kind::kNeg:
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case Kind::kNot:
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case Kind::kFNeg:
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case Kind::kFtoI:
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case Kind::kBitFtoI:
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case Kind::kItoF:
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case Kind::kBitItoF: {
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auto unyInst = dynamic_cast<UnaryInst *>(pInst);
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if (!unyInst->getName().empty()) {
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std::cout << "%" << unyInst->getName() << " = ";
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}
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switch (pInst->getKind()) {
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case Kind::kNeg: std::cout << "sub "; break; // integer negation is `sub i32 0, operand`
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case Kind::kNot: std::cout << "xor "; break; // logical/bitwise NOT is `xor i32 -1, operand` or `xor i1 true, operand`
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case Kind::kFNeg: std::cout << "fneg "; break; // float negation
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case Kind::kFtoI: std::cout << "fptosi "; break; // float to signed integer
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case Kind::kBitFtoI: std::cout << "bitcast "; break; // bitcast float to int
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case Kind::kItoF: std::cout << "sitofp "; break; // signed integer to float
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case Kind::kBitItoF: std::cout << "bitcast "; break; // bitcast int to float
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default: break; // Should not reach here
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}
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printType(unyInst->getOperand()->getType()); // Print operand type
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std::cout << " ";
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// Special handling for integer negation and logical NOT
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if (pInst->getKind() == Kind::kNeg) {
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std::cout << "0, "; // for 'sub i32 0, operand'
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} else if (pInst->getKind() == Kind::kNot) {
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// For logical NOT (i1 -> i1), use 'xor i1 true, operand'
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// For bitwise NOT (i32 -> i32), use 'xor i32 -1, operand'
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if (unyInst->getOperand()->getType()->isInt()) { // Assuming i32 for bitwise NOT
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std::cout << "NOT, "; // or specific bitmask for NOT
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} else { // Assuming i1 for logical NOT
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std::cout << "true, ";
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}
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}
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printValue(pInst->getOperand(0));
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// For type conversions (fptosi, sitofp, bitcast), need to specify destination type
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if (pInst->getKind() == Kind::kFtoI || pInst->getKind() == Kind::kItoF ||
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pInst->getKind() == Kind::kBitFtoI || pInst->getKind() == Kind::kBitItoF) {
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std::cout << " to ";
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printType(unyInst->getType()); // Print result type
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}
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std::cout << std::endl;
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} break;
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case Kind::kCall: {
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auto callInst = dynamic_cast<CallInst *>(pInst);
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auto function = callInst->getCallee();
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if (!callInst->getName().empty()) {
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std::cout << "%" << callInst->getName() << " = ";
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}
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std::cout << "call ";
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printType(callInst->getType()); // Return type of the call
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std::cout << " @" << function->getName() << "(";
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auto params = callInst->getArguments();
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bool first = true;
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for (auto ¶m : params) {
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if (!first) std::cout << ", ";
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first = false;
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printType(param->getValue()->getType()); // Type of argument
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std::cout << " ";
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printValue(param->getValue()); // Value of argument
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}
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std::cout << ")" << std::endl;
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} break;
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case Kind::kCondBr: {
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auto condBrInst = dynamic_cast<CondBrInst *>(pInst);
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std::cout << "br i1 "; // Condition type should be i1
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printValue(condBrInst->getCondition());
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std::cout << ", label %" << condBrInst->getThenBlock()->getName();
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std::cout << ", label %" << condBrInst->getElseBlock()->getName();
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std::cout << std::endl;
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} break;
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case Kind::kBr: {
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auto brInst = dynamic_cast<UncondBrInst *>(pInst);
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std::cout << "br label %" << brInst->getBlock()->getName();
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std::cout << std::endl;
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} break;
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case Kind::kReturn: {
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auto retInst = dynamic_cast<ReturnInst *>(pInst);
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std::cout << "ret ";
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if (retInst->getNumOperands() != 0) {
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printType(retInst->getOperand(0)->getType());
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std::cout << " ";
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printValue(retInst->getOperand(0));
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} else {
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std::cout << "void";
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}
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std::cout << std::endl;
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} break;
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case Kind::kAlloca: {
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auto allocaInst = dynamic_cast<AllocaInst *>(pInst);
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std::cout << "%" << allocaInst->getName() << " = alloca ";
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// AllocaInst 的类型现在应该是一个 PointerType，指向正确的 ArrayType 或 ScalarType
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// 例如：alloca i32, align 4 或者 alloca [10 x i32], align 4
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// auto allocatedType = dynamic_cast<PointerType *>(allocaInst->getType())->getBaseType();
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auto allocatedType = allocaInst->getAllocatedType();
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printType(allocatedType);
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// 仍然打印维度信息，如果存在的话
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if (allocaInst->getNumDims() > 0) {
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std::cout << ", ";
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for (size_t i = 0; i < allocaInst->getNumDims(); i++) {
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if (i > 0) std::cout << ", ";
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printType(Type::getIntType()); // 维度大小通常是 i32 类型
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std::cout << " ";
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printValue(allocaInst->getDim(i));
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}
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}
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std::cout << ", align 4" << std::endl;
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} break;
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case Kind::kLoad: {
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auto loadInst = dynamic_cast<LoadInst *>(pInst);
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std::cout << "%" << loadInst->getName() << " = load ";
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printType(loadInst->getType()); // 加载的结果类型
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std::cout << ", ";
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printType(loadInst->getPointer()->getType()); // 指针类型
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std::cout << " ";
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printValue(loadInst->getPointer()); // 要加载的地址
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// 仍然打印索引信息，如果存在的话
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if (loadInst->getNumIndices() > 0) {
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std::cout << ", indices "; // 或者其他分隔符，取决于你期望的格式
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for (size_t i = 0; i < loadInst->getNumIndices(); i++) {
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if (i > 0) std::cout << ", ";
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printType(loadInst->getIndex(i)->getType());
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std::cout << " ";
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printValue(loadInst->getIndex(i));
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}
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}
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std::cout << ", align 4" << std::endl;
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} break;
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case Kind::kStore: {
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auto storeInst = dynamic_cast<StoreInst *>(pInst);
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std::cout << "store ";
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printType(storeInst->getValue()->getType()); // 要存储的值的类型
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std::cout << " ";
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printValue(storeInst->getValue()); // 要存储的值
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std::cout << ", ";
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printType(storeInst->getPointer()->getType()); // 目标指针的类型
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std::cout << " ";
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printValue(storeInst->getPointer()); // 目标地址
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|
||||
// 仍然打印索引信息，如果存在的话
|
||||
if (storeInst->getNumIndices() > 0) {
|
||||
std::cout << ", indices "; // 或者其他分隔符
|
||||
for (size_t i = 0; i < storeInst->getNumIndices(); i++) {
|
||||
if (i > 0) std::cout << ", ";
|
||||
printType(storeInst->getIndex(i)->getType());
|
||||
std::cout << " ";
|
||||
printValue(storeInst->getIndex(i));
|
||||
}
|
||||
}
|
||||
|
||||
std::cout << ", align 4" << std::endl;
|
||||
} break;
|
||||
|
||||
case Kind::kGetElementPtr: { // 新增：GetElementPtrInst 打印
|
||||
auto gepInst = dynamic_cast<GetElementPtrInst*>(pInst);
|
||||
std::cout << "%" << gepInst->getName() << " = getelementptr inbounds "; // 假设总是 inbounds
|
||||
|
||||
// GEP 的第一个操作数是基指针，其类型是一个指向聚合类型的指针
|
||||
// 第一个参数是基指针所指向的聚合类型的类型 (e.g., [10 x i32])
|
||||
auto basePtrType = dynamic_cast<PointerType*>(gepInst->getBasePointer()->getType());
|
||||
printType(basePtrType->getBaseType()); // 打印基指针指向的类型
|
||||
|
||||
std::cout << ", ";
|
||||
printType(gepInst->getBasePointer()->getType()); // 打印基指针自身的类型 (e.g., [10 x i32]*)
|
||||
std::cout << " ";
|
||||
printValue(gepInst->getBasePointer()); // 打印基指针
|
||||
|
||||
// 打印所有索引
|
||||
for (auto indexVal : gepInst->getIndices()) { // 使用 getIndices() 迭代器
|
||||
std::cout << ", ";
|
||||
printType(indexVal->getValue()->getType()); // 打印索引的类型 (通常是 i32)
|
||||
std::cout << " ";
|
||||
printValue(indexVal->getValue()); // 打印索引值
|
||||
}
|
||||
std::cout << std::endl;
|
||||
} break;
|
||||
|
||||
case Kind::kMemset: {
|
||||
auto memsetInst = dynamic_cast<MemsetInst *>(pInst);
|
||||
std::cout << "call void @llvm.memset.p0.";
|
||||
printType(memsetInst->getPointer()->getType());
|
||||
std::cout << "(";
|
||||
printType(memsetInst->getPointer()->getType());
|
||||
std::cout << " ";
|
||||
printValue(memsetInst->getPointer());
|
||||
std::cout << ", i8 ";
|
||||
printValue(memsetInst->getValue());
|
||||
std::cout << ", i32 ";
|
||||
printValue(memsetInst->getSize());
|
||||
std::cout << ", i1 false)" << std::endl; // alignment for memset is typically i1
|
||||
} break;
|
||||
|
||||
case Kind::kPhi: {
|
||||
auto phiInst = dynamic_cast<PhiInst *>(pInst);
|
||||
// Phi 指令的名称通常是结果变量
|
||||
std::cout << "%" << phiInst->getName() << " = phi ";
|
||||
printType(phiInst->getType()); // Phi 结果类型
|
||||
|
||||
// Phi 指令的操作数是成对的 [value, basic_block]
|
||||
// 这里假设 getOperands() 返回的是 (val1, block1, val2, block2...)
|
||||
// 如果你的 PhiInst 存储方式是 getIncomingValues() 和 getIncomingBlocks()，请相应调整
|
||||
// LLVM IR 格式: phi type [value1, block1], [value2, block2]
|
||||
bool firstPair = true;
|
||||
for (unsigned i = 0; i < phiInst->getNumIncomingValues(); ++i) { // 遍历成对的操作数
|
||||
if (!firstPair) std::cout << ", ";
|
||||
firstPair = false;
|
||||
std::cout << "[ ";
|
||||
printValue(phiInst->getValue(i));
|
||||
std::cout << ", %";
|
||||
printBlock(phiInst->getBlock(i));
|
||||
std::cout << " ]";
|
||||
}
|
||||
std::cout << std::endl;
|
||||
} break;
|
||||
|
||||
// 以下两个 Kind 应该删除或替换为 kGEP
|
||||
// case Kind::kLa: { /* REMOVED */ } break;
|
||||
// case Kind::kGetSubArray: { /* REMOVED */ } break;
|
||||
|
||||
default:
|
||||
assert(false && "Unsupported instruction kind in SysYPrinter");
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
} // namespace sysy
|
||||
Reference in New Issue
Block a user