//===- ProvenanceAnalysisEvaluator.cpp - ObjC ARC Optimization ------------===// // // The LLVM Compiler Infrastructure // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // //===----------------------------------------------------------------------===// #include "ProvenanceAnalysis.h" #include "llvm/ADT/SetVector.h" #include "llvm/Analysis/AliasAnalysis.h" #include "llvm/Analysis/Passes.h" #include "llvm/IR/Function.h" #include "llvm/IR/InstIterator.h" #include "llvm/IR/Module.h" #include "llvm/Pass.h" #include "llvm/Support/raw_ostream.h" using namespace llvm; using namespace llvm::objcarc; namespace { class PAEval : public FunctionPass { public: static char ID; PAEval(); void getAnalysisUsage(AnalysisUsage &AU) const override; bool runOnFunction(Function &F) override; }; } char PAEval::ID = 0; PAEval::PAEval() : FunctionPass(ID) {} void PAEval::getAnalysisUsage(AnalysisUsage &AU) const { AU.addRequired<AAResultsWrapperPass>(); } static StringRef getName(Value *V) { StringRef Name = V->getName(); if (Name.startswith("\1")) return Name.substr(1); return Name; } static void insertIfNamed(SetVector<Value *> &Values, Value *V) { if (!V->hasName()) return; Values.insert(V); } bool PAEval::runOnFunction(Function &F) { SetVector<Value *> Values; for (auto &Arg : F.args()) insertIfNamed(Values, &Arg); for (auto I = inst_begin(F), E = inst_end(F); I != E; ++I) { insertIfNamed(Values, &*I); for (auto &Op : I->operands()) insertIfNamed(Values, Op); } ProvenanceAnalysis PA; PA.setAA(&getAnalysis<AAResultsWrapperPass>().getAAResults()); const DataLayout &DL = F.getParent()->getDataLayout(); for (Value *V1 : Values) { StringRef NameV1 = getName(V1); for (Value *V2 : Values) { StringRef NameV2 = getName(V2); if (NameV1 >= NameV2) continue; errs() << NameV1 << " and " << NameV2; if (PA.related(V1, V2, DL)) errs() << " are related.\n"; else errs() << " are not related.\n"; } } return false; } FunctionPass *llvm::createPAEvalPass() { return new PAEval(); } INITIALIZE_PASS_BEGIN(PAEval, "pa-eval", "Evaluate ProvenanceAnalysis on all pairs", false, true) INITIALIZE_PASS_DEPENDENCY(AAResultsWrapperPass) INITIALIZE_PASS_END(PAEval, "pa-eval", "Evaluate ProvenanceAnalysis on all pairs", false, true) |