65 lines
1.7 KiB
C++
65 lines
1.7 KiB
C++
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//===- ProvenanceAnalysisEvaluator.cpp - ObjC ARC Optimization ------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "ProvenanceAnalysis.h"
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#include "llvm/Transforms/ObjCARC.h"
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#include "llvm/ADT/SetVector.h"
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#include "llvm/Analysis/AliasAnalysis.h"
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#include "llvm/IR/Function.h"
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#include "llvm/IR/InstIterator.h"
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#include "llvm/Support/raw_ostream.h"
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using namespace llvm;
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using namespace llvm::objcarc;
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static StringRef getName(Value *V) {
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StringRef Name = V->getName();
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if (Name.starts_with("\1"))
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return Name.substr(1);
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return Name;
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}
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static void insertIfNamed(SetVector<Value *> &Values, Value *V) {
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if (!V->hasName())
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return;
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Values.insert(V);
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}
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PreservedAnalyses PAEvalPass::run(Function &F, FunctionAnalysisManager &AM) {
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SetVector<Value *> Values;
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for (auto &Arg : F.args())
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insertIfNamed(Values, &Arg);
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for (Instruction &I : instructions(F)) {
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insertIfNamed(Values, &I);
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for (auto &Op : I.operands())
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insertIfNamed(Values, Op);
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}
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ProvenanceAnalysis PA;
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PA.setAA(&AM.getResult<AAManager>(F));
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for (Value *V1 : Values) {
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StringRef NameV1 = getName(V1);
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for (Value *V2 : Values) {
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StringRef NameV2 = getName(V2);
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if (NameV1 >= NameV2)
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continue;
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errs() << NameV1 << " and " << NameV2;
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if (PA.related(V1, V2))
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errs() << " are related.\n";
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else
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errs() << " are not related.\n";
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}
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}
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return PreservedAnalyses::all();
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}
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