| /* |
| * 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_NODES_ARM64_H_ |
| #define ART_COMPILER_OPTIMIZING_NODES_ARM64_H_ |
| |
| namespace art { |
| |
| // This instruction computes an intermediate address pointing in the 'middle' of an object. The |
| // result pointer cannot be handled by GC, so extra care is taken to make sure that this value is |
| // never used across anything that can trigger GC. |
| class HArm64IntermediateAddress : public HExpression<2> { |
| public: |
| HArm64IntermediateAddress(HInstruction* base_address, HInstruction* offset, uint32_t dex_pc) |
| : HExpression(Primitive::kPrimNot, SideEffects::DependsOnGC(), dex_pc) { |
| SetRawInputAt(0, base_address); |
| SetRawInputAt(1, offset); |
| } |
| |
| bool CanBeMoved() const OVERRIDE { return true; } |
| bool InstructionDataEquals(HInstruction* other ATTRIBUTE_UNUSED) const OVERRIDE { return true; } |
| |
| HInstruction* GetBaseAddress() const { return InputAt(0); } |
| HInstruction* GetOffset() const { return InputAt(1); } |
| |
| DECLARE_INSTRUCTION(Arm64IntermediateAddress); |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(HArm64IntermediateAddress); |
| }; |
| |
| } // namespace art |
| |
| #endif // ART_COMPILER_OPTIMIZING_NODES_ARM64_H_ |