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/*
* Copyright (C) 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "pass_driver_me_opts.h"
#include "base/logging.h"
#include "base/macros.h"
#include "bb_optimizations.h"
#include "dataflow_iterator.h"
#include "dataflow_iterator-inl.h"
#include "post_opt_passes.h"
namespace art {
/*
* Create the pass list. These passes are immutable and are shared across the threads.
*
* Advantage is that there will be no race conditions here.
* Disadvantage is the passes can't change their internal states depending on CompilationUnit:
* - This is not yet an issue: no current pass would require it.
*/
// The initial list of passes to be used by the PassDriveMEOpts.
template<>
const Pass* const PassDriver<PassDriverMEOpts>::g_passes[] = {
GetPassInstance<CacheFieldLoweringInfo>(),
GetPassInstance<CacheMethodLoweringInfo>(),
GetPassInstance<CalculatePredecessors>(),
GetPassInstance<DFSOrders>(),
GetPassInstance<ClassInitCheckElimination>(),
GetPassInstance<SpecialMethodInliner>(),
GetPassInstance<NullCheckElimination>(),
GetPassInstance<BBCombine>(),
GetPassInstance<CodeLayout>(),
GetPassInstance<GlobalValueNumberingPass>(),
GetPassInstance<ConstantPropagation>(),
GetPassInstance<MethodUseCount>(),
GetPassInstance<BBOptimizations>(),
GetPassInstance<SuspendCheckElimination>(),
};
// The number of the passes in the initial list of Passes (g_passes).
template<>
uint16_t const PassDriver<PassDriverMEOpts>::g_passes_size =
arraysize(PassDriver<PassDriverMEOpts>::g_passes);
// The default pass list is used by the PassDriverME instance of PassDriver
// to initialize pass_list_.
template<>
std::vector<const Pass*> PassDriver<PassDriverMEOpts>::g_default_pass_list(
PassDriver<PassDriverMEOpts>::g_passes,
PassDriver<PassDriverMEOpts>::g_passes +
PassDriver<PassDriverMEOpts>::g_passes_size);
// By default, do not have a dump pass list.
template<>
std::string PassDriver<PassDriverMEOpts>::dump_pass_list_ = std::string();
// By default, do not have a print pass list.
template<>
std::string PassDriver<PassDriverMEOpts>::print_pass_list_ = std::string();
// By default, we do not print the pass' information.
template<>
bool PassDriver<PassDriverMEOpts>::default_print_passes_ = false;
// By default, there are no overridden pass settings.
template<>
std::string PassDriver<PassDriverMEOpts>::overridden_pass_options_list_ = std::string();
void PassDriverMEOpts::ApplyPass(PassDataHolder* data, const Pass* pass) {
const PassME* pass_me = down_cast<const PassME*> (pass);
DCHECK(pass_me != nullptr);
PassMEDataHolder* pass_me_data_holder = down_cast<PassMEDataHolder*>(data);
// Set to dirty.
pass_me_data_holder->dirty = true;
// First call the base class' version.
PassDriver::ApplyPass(data, pass);
// Now we care about flags.
if ((pass_me->GetFlag(kOptimizationBasicBlockChange) == true) ||
(pass_me->GetFlag(kOptimizationDefUsesChange) == true)) {
// Is it dirty at least?
if (pass_me_data_holder->dirty == true) {
CompilationUnit* c_unit = pass_me_data_holder->c_unit;
c_unit->mir_graph.get()->CalculateBasicBlockInformation();
}
}
}
} // namespace art
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