64 class RSInvariantPass : public llvm::FunctionPass {
70   virtual bool doInitialization(llvm::Module &M) {  in doInitialization()
71     EmptyMDNode = llvm::MDNode::get(M.getContext(), llvm::None);  in doInitialization()
75   virtual bool runOnFunction(llvm::Function &F) {  in runOnFunction()
78     for (llvm::Value &Arg : F.args()) {  in runOnFunction()
79       const llvm::Type *ArgType = Arg.getType();  in runOnFunction()
81         const llvm::Type *ArgPtrDomainType =  ArgType->getPointerElementType();  in runOnFunction()
82         if (auto ArgPtrDomainStructType = llvm::dyn_cast<llvm::StructType>(ArgPtrDomainType)) {  in runOnFunction()
84             const llvm::StringRef StructName = getUnsuffixedStructName(ArgPtrDomainStructType);  in runOnFunction()
110   bool markInvariantUserLoads(llvm::Value *Value) {  in markInvariantUserLoads()
112     for (llvm::Use &Use : Value->uses()) {  in markInvariantUserLoads()
113       llvm::Instruction *Inst = llvm::cast<llvm::Instruction>(Use.getUser());  in markInvariantUserLoads()
122       if (auto BitCast = llvm::dyn_cast<llvm::BitCastInst>(Inst)) {  in markInvariantUserLoads()
124       } else if (auto GetElementPtr = llvm::dyn_cast<llvm::GetElementPtrInst>(Inst)) {  in markInvariantUserLoads()
127       } else if (auto Load = llvm::dyn_cast<llvm::LoadInst>(Inst)) {  in markInvariantUserLoads()
138   llvm::MDNode *EmptyMDNode;
142 llvm::RegisterPass<RSInvariantPass> X("rsinvariant", "RS Invariant Load Pass");
148 llvm::FunctionPass *