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//===--- RCIdentityDumper.cpp ---------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See https://swift.org/LICENSE.txt for license information
// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
///
/// \file
///
/// This pass applies the RCIdentityAnalysis to all SILValues in a function in
/// order to apply FileCheck testing to RCIdentityAnalysis without needing to
/// test any other passes.
///
//===----------------------------------------------------------------------===//
#define DEBUG_TYPE "sil-rc-identity-dumper"
#include "swift/SILOptimizer/PassManager/Passes.h"
#include "swift/SIL/SILArgument.h"
#include "swift/SIL/SILFunction.h"
#include "swift/SIL/SILValue.h"
#include "swift/SILOptimizer/Analysis/RCIdentityAnalysis.h"
#include "swift/SILOptimizer/PassManager/Transforms.h"
#include "llvm/Support/Debug.h"
using namespace swift;
namespace {
/// Dumps the alias relations between all instructions of a function.
class RCIdentityDumper : public SILFunctionTransform {
void run() override {
auto *Fn = getFunction();
auto *RCId = PM->getAnalysis<RCIdentityAnalysis>()->get(Fn);
std::vector<std::pair<SILValue, SILValue>> Results;
unsigned ValueCount = 0;
llvm::MapVector<SILValue, uint64_t> ValueToValueIDMap;
llvm::outs() << "@" << Fn->getName() << "@\n";
for (auto &BB : *Fn) {
for (auto *Arg : BB.getArguments()) {
ValueToValueIDMap[Arg] = ValueCount++;
Results.push_back({Arg, RCId->getRCIdentityRoot(Arg)});
}
for (auto &II : BB) {
for (auto V : II.getResults()) {
ValueToValueIDMap[V] = ValueCount++;
Results.push_back({V, RCId->getRCIdentityRoot(V)});
}
}
}
llvm::outs() << "ValueMap:\n";
for (auto P : ValueToValueIDMap) {
llvm::outs() << "\tValueMap[" << P.second << "] = " << P.first;
}
unsigned ResultCount = 0;
for (auto P : Results) {
llvm::outs() << "RESULT #" << ResultCount++ << ": "
<< ValueToValueIDMap[P.first] << " = "
<< ValueToValueIDMap[P.second] << "\n";
}
llvm::outs() << "\n";
}
};
} // end anonymous namespace
SILTransform *swift::createRCIdentityDumper() { return new RCIdentityDumper(); }
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