namespace {
- class MemCpyOptLegacyPass : public FunctionPass {
- MemCpyOptPass Impl;
+class MemCpyOptLegacyPass : public FunctionPass {
+ MemCpyOptPass Impl;
- public:
- static char ID; // Pass identification, replacement for typeid
-
- MemCpyOptLegacyPass() : FunctionPass(ID) {
- initializeMemCpyOptLegacyPassPass(*PassRegistry::getPassRegistry());
- }
+public:
+ static char ID; // Pass identification, replacement for typeid
- bool runOnFunction(Function &F) override;
-
- private:
- // This transformation requires dominator postdominator info
- void getAnalysisUsage(AnalysisUsage &AU) const override {
- AU.setPreservesCFG();
- AU.addRequired<AssumptionCacheTracker>();
- AU.addRequired<DominatorTreeWrapperPass>();
- AU.addRequired<MemoryDependenceWrapperPass>();
- AU.addRequired<AAResultsWrapperPass>();
- AU.addRequired<TargetLibraryInfoWrapperPass>();
- AU.addPreserved<GlobalsAAWrapperPass>();
- AU.addPreserved<MemoryDependenceWrapperPass>();
- }
+ MemCpyOptLegacyPass() : FunctionPass(ID) {
+ initializeMemCpyOptLegacyPassPass(*PassRegistry::getPassRegistry());
+ }
- // Helper functions
- bool processStore(StoreInst *SI, BasicBlock::iterator &BBI);
- bool processMemSet(MemSetInst *SI, BasicBlock::iterator &BBI);
- bool processMemCpy(MemCpyInst *M);
- bool processMemMove(MemMoveInst *M);
- bool performCallSlotOptzn(Instruction *cpy, Value *cpyDst, Value *cpySrc,
- uint64_t cpyLen, unsigned cpyAlign, CallInst *C);
- bool processMemCpyMemCpyDependence(MemCpyInst *M, MemCpyInst *MDep);
- bool processMemSetMemCpyDependence(MemCpyInst *M, MemSetInst *MDep);
- bool performMemCpyToMemSetOptzn(MemCpyInst *M, MemSetInst *MDep);
- bool processByValArgument(CallSite CS, unsigned ArgNo);
- Instruction *tryMergingIntoMemset(Instruction *I, Value *StartPtr,
- Value *ByteVal);
-
- bool iterateOnFunction(Function &F);
- };
+ bool runOnFunction(Function &F) override;
+
+private:
+ // This transformation requires dominator postdominator info
+ void getAnalysisUsage(AnalysisUsage &AU) const override {
+ AU.setPreservesCFG();
+ AU.addRequired<AssumptionCacheTracker>();
+ AU.addRequired<DominatorTreeWrapperPass>();
+ AU.addRequired<MemoryDependenceWrapperPass>();
+ AU.addRequired<AAResultsWrapperPass>();
+ AU.addRequired<TargetLibraryInfoWrapperPass>();
+ AU.addPreserved<GlobalsAAWrapperPass>();
+ AU.addPreserved<MemoryDependenceWrapperPass>();
+ }
+};
- char MemCpyOptLegacyPass::ID = 0;
+char MemCpyOptLegacyPass::ID = 0;
} // end anonymous namespace