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[midend]部分DCE遍实现（传播活跃代码），修改优化遍运行逻辑，TODO：完善优化遍的getAnalysisUsage，删除无用代码

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This commit is contained in:
rain2133
2025-07-24 14:36:33 +08:00
parent f4d231b989
commit 4b9d067c12
10 changed files with 175 additions and 781 deletions
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5
src/include/SysYIRCFGOpt.h
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@@ -54,6 +54,7 @@ public:
static void *ID;
SysYDelEmptyBlockPass(IRBuilder *builder) : OptimizationPass("SysYDelEmptyBlockPass", Granularity::Function), pBuilder(builder) {}
bool runOnFunction(Function *F, AnalysisManager& AM) override;
void getAnalysisUsage(std::set<void *> &analysisDependencies, std::set<void *> &analysisInvalidations) const override;
void *getPassID() const override { return &ID; }
};
@@ -62,6 +63,7 @@ public:
static void *ID;
SysYDelNoPreBLockPass() : OptimizationPass("SysYDelNoPreBLockPass", Granularity::Function) {}
bool runOnFunction(Function *F, AnalysisManager& AM) override;
void getAnalysisUsage(std::set<void *> &analysisDependencies, std::set<void *> &analysisInvalidations) const override;
void *getPassID() const override { return &ID; }
};
@@ -70,6 +72,7 @@ public:
static void *ID;
SysYBlockMergePass() : OptimizationPass("SysYBlockMergePass", Granularity::Function) {}
bool runOnFunction(Function *F, AnalysisManager& AM) override;
void getAnalysisUsage(std::set<void *> &analysisDependencies, std::set<void *> &analysisInvalidations) const override;
void *getPassID() const override { return &ID; }
};
@@ -80,6 +83,7 @@ public:
static void *ID;
SysYAddReturnPass(IRBuilder *builder) : OptimizationPass("SysYAddReturnPass", Granularity::Function), pBuilder(builder) {}
bool runOnFunction(Function *F, AnalysisManager& AM) override;
void getAnalysisUsage(std::set<void *> &analysisDependencies, std::set<void *> &analysisInvalidations) const override;
void *getPassID() const override { return &ID; }
};
@@ -90,6 +94,7 @@ public:
static void *ID;
SysYCondBr2BrPass(IRBuilder *builder) : OptimizationPass("SysYCondBr2BrPass", Granularity::Function), pBuilder(builder) {}
bool runOnFunction(Function *F, AnalysisManager& AM) override;
void getAnalysisUsage(std::set<void *> &analysisDependencies, std::set<void *> &analysisInvalidations) const override;
void *getPassID() const override { return &ID; }
};