[midend]重构了src目录
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55
src/include/midend/Pass/Analysis/Dom.h
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55
src/include/midend/Pass/Analysis/Dom.h
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#pragma once
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#include "Pass.h" // 包含 Pass 框架
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#include "IR.h" // 包含 IR 定义
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#include <map>
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#include <set>
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#include <vector>
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#include <algorithm>
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namespace sysy {
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// 支配树分析结果类 (保持不变)
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class DominatorTree : public AnalysisResultBase {
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public:
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DominatorTree(Function* F);
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const std::set<BasicBlock*>* getDominators(BasicBlock* BB) const;
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BasicBlock* getImmediateDominator(BasicBlock* BB) const;
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const std::set<BasicBlock*>* getDominanceFrontier(BasicBlock* BB) const;
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const std::set<BasicBlock*>* getDominatorTreeChildren(BasicBlock* BB) const;
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const std::map<BasicBlock*, std::set<BasicBlock*>>& getDominatorsMap() const { return Dominators; }
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const std::map<BasicBlock*, BasicBlock*>& getIDomsMap() const { return IDoms; }
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const std::map<BasicBlock*, std::set<BasicBlock*>>& getDominanceFrontiersMap() const { return DominanceFrontiers; }
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void computeDominators(Function* F);
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void computeIDoms(Function* F);
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void computeDominanceFrontiers(Function* F);
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void computeDominatorTreeChildren(Function* F);
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private:
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Function* AssociatedFunction;
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std::map<BasicBlock*, std::set<BasicBlock*>> Dominators;
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std::map<BasicBlock*, BasicBlock*> IDoms;
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std::map<BasicBlock*, std::set<BasicBlock*>> DominanceFrontiers;
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std::map<BasicBlock*, std::set<BasicBlock*>> DominatorTreeChildren;
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};
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// 支配树分析遍
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class DominatorTreeAnalysisPass : public AnalysisPass {
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public:
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// 唯一的 Pass ID
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static void *ID;
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DominatorTreeAnalysisPass() : AnalysisPass("DominatorTreeAnalysis", Pass::Granularity::Function) {}
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// 实现 getPassID
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void* getPassID() const override { return &ID; }
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bool runOnFunction(Function* F, AnalysisManager &AM) override;
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std::unique_ptr<AnalysisResultBase> getResult() override;
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private:
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std::unique_ptr<DominatorTree> CurrentDominatorTree;
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};
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} // namespace sysy
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72
src/include/midend/Pass/Analysis/Liveness.h
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72
src/include/midend/Pass/Analysis/Liveness.h
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#pragma once
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#include "IR.h" // 包含 IR 定义
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#include "Pass.h" // 包含 Pass 框架
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#include <algorithm> // for std::set_union, std::set_difference
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#include <map>
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#include <set>
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#include <vector>
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namespace sysy {
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// 前向声明
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class Function;
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class BasicBlock;
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class Value;
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class Instruction;
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// 活跃变量分析结果类
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// 它将包含 LiveIn 和 LiveOut 集合
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class LivenessAnalysisResult : public AnalysisResultBase {
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public:
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LivenessAnalysisResult(Function *F) : AssociatedFunction(F) {}
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// 获取给定基本块的 LiveIn 集合
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const std::set<Value *> *getLiveIn(BasicBlock *BB) const;
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// 获取给定基本块的 LiveOut 集合
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const std::set<Value *> *getLiveOut(BasicBlock *BB) const;
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// 暴露内部数据结构,如果需要更直接的访问
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const std::map<BasicBlock *, std::set<Value *>> &getLiveInSets() const { return liveInSets; }
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const std::map<BasicBlock *, std::set<Value *>> &getLiveOutSets() const { return liveOutSets; }
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// 核心计算方法,由 LivenessAnalysisPass 调用
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void computeLiveness(Function *F);
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private:
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Function *AssociatedFunction; // 这个活跃变量分析是为哪个函数计算的
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std::map<BasicBlock *, std::set<Value *>> liveInSets;
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std::map<BasicBlock *, std::set<Value *>> liveOutSets;
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// 辅助函数:计算基本块的 Def 和 Use 集合
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// Def: 块内定义,且定义在所有使用之前的值
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// Use: 块内使用,且使用在所有定义之前的值
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void computeDefUse(BasicBlock *BB, std::set<Value *> &def, std::set<Value *> &use);
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};
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// 活跃变量分析遍
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class LivenessAnalysisPass : public AnalysisPass {
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public:
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// 唯一的 Pass ID
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static void *ID; // LLVM 风格的唯一 ID
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LivenessAnalysisPass() : AnalysisPass("LivenessAnalysis", Pass::Granularity::Function) {}
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// 实现 getPassID
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void *getPassID() const override { return &ID; }
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// 运行分析并返回结果。现在接受 AnalysisManager& AM 参数
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bool runOnFunction(Function *F, AnalysisManager &AM) override;
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// 获取分析结果的指针。
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// 注意:AnalysisManager 将会调用此方法来获取结果并进行缓存。
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std::unique_ptr<AnalysisResultBase> getResult() override;
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private:
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// 存储当前分析计算出的 LivenessAnalysisResult 实例
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// runOnFunction 每次调用都会创建新的 LivenessAnalysisResult 对象
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std::unique_ptr<LivenessAnalysisResult> CurrentLivenessResult;
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};
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} // namespace sysy
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