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/*
* Copyright (C) 2015 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.
*/
#ifndef ART_COMPILER_OPTIMIZING_INSTRUCTION_SIMPLIFIER_ARM64_H_
#define ART_COMPILER_OPTIMIZING_INSTRUCTION_SIMPLIFIER_ARM64_H_
#include "nodes.h"
#include "optimization.h"
namespace art {
namespace arm64 {
class InstructionSimplifierArm64Visitor : public HGraphVisitor {
public:
InstructionSimplifierArm64Visitor(HGraph* graph, OptimizingCompilerStats* stats)
: HGraphVisitor(graph), stats_(stats) {}
private:
void RecordSimplification() {
if (stats_ != nullptr) {
stats_->RecordStat(kInstructionSimplificationsArch);
}
}
void TryExtractArrayAccessAddress(HInstruction* access,
HInstruction* array,
HInstruction* index,
int access_size);
bool TryMergeIntoUsersShifterOperand(HInstruction* instruction);
bool TryMergeIntoShifterOperand(HInstruction* use,
HInstruction* bitfield_op,
bool do_merge);
bool CanMergeIntoShifterOperand(HInstruction* use, HInstruction* bitfield_op) {
return TryMergeIntoShifterOperand(use, bitfield_op, false);
}
bool MergeIntoShifterOperand(HInstruction* use, HInstruction* bitfield_op) {
DCHECK(CanMergeIntoShifterOperand(use, bitfield_op));
return TryMergeIntoShifterOperand(use, bitfield_op, true);
}
// HInstruction visitors, sorted alphabetically.
void VisitAnd(HAnd* instruction) OVERRIDE;
void VisitArrayGet(HArrayGet* instruction) OVERRIDE;
void VisitArraySet(HArraySet* instruction) OVERRIDE;
void VisitMul(HMul* instruction) OVERRIDE;
void VisitOr(HOr* instruction) OVERRIDE;
void VisitShl(HShl* instruction) OVERRIDE;
void VisitShr(HShr* instruction) OVERRIDE;
void VisitTypeConversion(HTypeConversion* instruction) OVERRIDE;
void VisitUShr(HUShr* instruction) OVERRIDE;
void VisitXor(HXor* instruction) OVERRIDE;
OptimizingCompilerStats* stats_;
};
class InstructionSimplifierArm64 : public HOptimization {
public:
InstructionSimplifierArm64(HGraph* graph, OptimizingCompilerStats* stats)
: HOptimization(graph, "instruction_simplifier_arm64", stats) {}
void Run() OVERRIDE {
InstructionSimplifierArm64Visitor visitor(graph_, stats_);
visitor.VisitReversePostOrder();
}
};
} // namespace arm64
} // namespace art
#endif // ART_COMPILER_OPTIMIZING_INSTRUCTION_SIMPLIFIER_ARM64_H_
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