[midend-mem2reg]暂存文件,思路留存
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@@ -4,3 +4,11 @@
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| ------------ | ------------ | ---------- |
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| CFG优化 | 函数级 | 已完成 |
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| DCE | 函数级 | 待测试 |
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# 后续优化可能涉及的改动
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## 1)将所有的alloca集中到entryblock中
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好处:优化友好性,方面mem2reg提升
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目前没有实现这个机制,如果想要实现首先解决同一函数不同域的同名变量命名区分
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需要保证符号表能正确维护域中的局部变量
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@@ -27,7 +27,7 @@ add_executable(sysyc
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Liveness.cpp
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DCE.cpp
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AddressCalculationExpansion.cpp
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# Mem2Reg.cpp
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Mem2Reg.cpp
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# Reg2Mem.cpp
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RISCv64Backend.cpp
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RISCv64ISel.cpp
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@@ -3,6 +3,7 @@
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#include "SysYIRCFGOpt.h"
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#include "SysYIRPrinter.h"
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#include "DCE.h"
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#include "Mem2Reg.h"
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#include "Pass.h"
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#include <iostream>
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#include <queue>
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@@ -62,6 +63,10 @@ void PassManager::runOptimizationPipeline(Module* moduleIR, IRBuilder* builderIR
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this->addPass(&DCE::ID);
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this->run();
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this->clearPasses();
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this->addPass(&Mem2Reg::ID);
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this->run();
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if (DEBUG) std::cout << "--- Custom optimization sequence finished ---\n";
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}
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