95 lines
2.5 KiB
C++
95 lines
2.5 KiB
C++
|
//===- ProvenanceAnalysisEvaluator.cpp - ObjC ARC Optimization ------------===//
|
||
|
|
//
|
||
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
||
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
||
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
||
|
|
//
|
||
|
|
//===----------------------------------------------------------------------===//
|
||
|
|
|
||
|
|
#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/InstrTypes.h"
|
||
|
|
#include "llvm/IR/Module.h"
|
||
|
|
#include "llvm/InitializePasses.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());
|
||
|
|
|
||
|
|
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))
|
||
|
|
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)
|