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/*
* Copyright (C) 2024 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_NODES_RISCV64_H_
#define ART_COMPILER_OPTIMIZING_NODES_RISCV64_H_
namespace art HIDDEN {
class HRiscv64ShiftAdd final : public HBinaryOperation {
public:
HRiscv64ShiftAdd(HInstruction* left,
HInstruction* right,
uint32_t distance,
uint32_t dex_pc = kNoDexPc)
: HBinaryOperation(
kRiscv64ShiftAdd, DataType::Type::kInt64, left, right, SideEffects::None(), dex_pc) {
DCHECK_GE(distance, 1u);
DCHECK_LE(distance, 3u);
SetPackedField<DistanceField>(distance);
}
uint32_t GetDistance() const { return GetPackedField<DistanceField>(); }
bool IsCommutative() const override { return false; }
bool InstructionDataEquals(const HInstruction* other) const override {
return GetPackedFields() == other->AsRiscv64ShiftAdd()->GetPackedFields();
}
HConstant* Evaluate(HLongConstant* x, HLongConstant* y) const override {
const int64_t value = y->GetValue() + (x->GetValue() << GetDistance());
return GetBlock()->GetGraph()->GetLongConstant(value);
}
DECLARE_INSTRUCTION(Riscv64ShiftAdd);
protected:
DEFAULT_COPY_CONSTRUCTOR(Riscv64ShiftAdd);
private:
static constexpr size_t kFieldDistance = kNumberOfGenericPackedBits;
static constexpr size_t kFieldDistanceSize = MinimumBitsToStore(3u);
static constexpr size_t kNumberOfRiscv64ShiftAddPackedBits =
kFieldDistance + kFieldDistanceSize;
static_assert(kNumberOfRiscv64ShiftAddPackedBits <= kMaxNumberOfPackedBits,
"Too many packed fields.");
using DistanceField = BitField<uint32_t, kFieldDistance, kFieldDistanceSize>;
};
} // namespace art
#endif // ART_COMPILER_OPTIMIZING_NODES_RISCV64_H_
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