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