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//===--- EpilogueARCMatcherDumper.cpp - Find Epilogue Releases ------------===//
//
// 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 finds the epilogue releases matched to each argument of the
/// function.
///
//===----------------------------------------------------------------------===//
#define DEBUG_TYPE "sil-epilogue-arc-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/Analysis.h"
#include "swift/SILOptimizer/Analysis/AliasAnalysis.h"
#include "swift/SILOptimizer/Analysis/EpilogueARCAnalysis.h"
#include "swift/SILOptimizer/Analysis/RCIdentityAnalysis.h"
#include "swift/SILOptimizer/PassManager/Transforms.h"
using namespace swift;
//===----------------------------------------------------------------------===//
// Top Level Driver
//===----------------------------------------------------------------------===//
namespace {
/// Find and dump the epilogue release instructions for the arguments.
class SILEpilogueARCMatcherDumper : public SILModuleTransform {
void run() override {
for (auto &F: *getModule()) {
// Function is not definition.
if (!F.isDefinition())
continue;
// Find the epilogue releases of each owned argument.
for (auto Arg : F.getArguments()) {
auto *EA = PM->getAnalysis<EpilogueARCAnalysis>()->get(&F);
llvm::outs() <<"START: " << F.getName() << "\n";
llvm::outs() << *Arg;
// Find the retain instructions for the argument.
llvm::SmallSetVector<SILInstruction *, 1> RelInsts =
EA->computeEpilogueARCInstructions(EpilogueARCContext::EpilogueARCKind::Release,
Arg);
for (auto I : RelInsts) {
llvm::outs() << *I << "\n";
}
// Find the release instructions for the argument.
llvm::SmallSetVector<SILInstruction *, 1> RetInsts =
EA->computeEpilogueARCInstructions(EpilogueARCContext::EpilogueARCKind::Retain,
Arg);
for (auto I : RetInsts) {
llvm::outs() << *I << "\n";
}
llvm::outs() <<"FINISH: " << F.getName() << "\n";
}
}
}
};
} // end anonymous namespace
SILTransform *swift::createEpilogueARCMatcherDumper() {
return new SILEpilogueARCMatcherDumper();
}
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