forked from OSchip/llvm-project
72 lines
2.5 KiB
C++
72 lines
2.5 KiB
C++
//===-- Core/Transforms.cpp - class Transforms Impl -----------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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///
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/// \file
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/// \brief This file provides the implementation for class Transforms.
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///
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//===----------------------------------------------------------------------===//
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#include "Core/Transforms.h"
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#include "Core/Transform.h"
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namespace cl = llvm::cl;
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cl::OptionCategory TransformCategory("Transforms");
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Transforms::~Transforms() {
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for (std::vector<Transform *>::iterator I = ChosenTransforms.begin(),
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E = ChosenTransforms.end();
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I != E; ++I)
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delete *I;
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for (OptionMap::iterator I = Options.begin(), E = Options.end(); I != E; ++I)
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delete I->getValue();
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}
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void Transforms::registerTransforms() {
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for (TransformFactoryRegistry::iterator I = TransformFactoryRegistry::begin(),
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E = TransformFactoryRegistry::end();
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I != E; ++I)
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Options[I->getName()] = new cl::opt<bool>(
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I->getName(), cl::desc(I->getDesc()), cl::cat(TransformCategory));
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}
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bool Transforms::hasAnyExplicitOption() const {
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for (OptionMap::const_iterator I = Options.begin(), E = Options.end(); I != E;
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++I)
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if (*I->second)
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return true;
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return false;
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}
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void
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Transforms::createSelectedTransforms(const TransformOptions &GlobalOptions,
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const CompilerVersions &RequiredVersions) {
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// if at least one transform is set explicitly on the command line, do not
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// enable non-explicit ones
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bool EnableAllTransformsByDefault = !hasAnyExplicitOption();
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for (TransformFactoryRegistry::iterator I = TransformFactoryRegistry::begin(),
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E = TransformFactoryRegistry::end();
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I != E; ++I) {
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bool ExplicitlyEnabled = *Options[I->getName()];
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bool OptionEnabled = EnableAllTransformsByDefault || ExplicitlyEnabled;
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if (!OptionEnabled)
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continue;
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llvm::OwningPtr<TransformFactory> Factory(I->instantiate());
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if (Factory->supportsCompilers(RequiredVersions))
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ChosenTransforms.push_back(Factory->createTransform(GlobalOptions));
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else if (ExplicitlyEnabled)
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llvm::errs() << "note: " << '-' << I->getName()
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<< ": transform not available for specified compilers\n";
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}
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}
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