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84 lines
2.2 KiB
C++
84 lines
2.2 KiB
C++
//===----- PassManager.cpp - Swift Pass Manager ---------------------------===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See http://swift.org/LICENSE.txt for license information
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// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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#define DEBUG_TYPE "sil-passmanager"
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#include "swift/SILPasses/PassManager.h"
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#include "swift/SILPasses/Transforms.h"
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#include "swift/SIL/SILModule.h"
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#include "swift/SIL/SILFunction.h"
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#include "llvm/ADT/Statistic.h"
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#include "llvm/Support/Debug.h"
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using namespace swift;
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STATISTIC(NumOptzIterations, "Number of optimization iterations");
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void SILPassManager::runOneIteration() {
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DEBUG(llvm::dbgs() << "*** Optimizing the module *** \n");
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NumOptzIterations++;
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// For each transformation:
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for (SILTransform *ST : Transformations) {
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// Run module transformations on the module.
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if (SILModuleTransform *SMT = llvm::dyn_cast<SILModuleTransform>(ST)) {
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SMT->injectPassManager(this);
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SMT->injectModule(Mod);
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SMT->run();
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if (VerifyAfterAll) {
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DEBUG(Mod->verify());
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}
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continue;
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}
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// Run function transformation on all functions.
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if (SILFunctionTransform *SFT = llvm::dyn_cast<SILFunctionTransform>(ST)) {
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for (auto &F : *Mod)
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if (!F.empty()) {
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SFT->injectPassManager(this);
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SFT->injectFunction(&F);
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SFT->run();
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if (VerifyAfterAll) {
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DEBUG(Mod->verify());
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}
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}
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continue;
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}
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llvm_unreachable("Unknown pass kind.");
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}
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}
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void SILPassManager::run() {
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// Keep optimizing the module untill no pass requested another iteration
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// of the pass.
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do {
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anotherIteration = false;
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runOneIteration();
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} while (anotherIteration);
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}
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/// D'tor.
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SILPassManager::~SILPassManager() {
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// Free all transformations.
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for (auto T : Transformations)
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delete T;
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// delete the analyis.
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for (auto A : Analysis)
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delete A;
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}
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