1 /* 2 * Copyright (c) 2024 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef ECMASCRIPT_COMPILER_ASSEMBLER_MACRO_ASSEMBLER_H 17 #define ECMASCRIPT_COMPILER_ASSEMBLER_MACRO_ASSEMBLER_H 18 19 #include "ecmascript/compiler/bytecodes.h" 20 #include "ecmascript/ecma_vm.h" 21 #include "ecmascript/mem/native_area_allocator.h" 22 23 namespace panda::ecmascript::kungfu { 24 25 enum class BaselineSpecialParameter : uint8_t { 26 GLUE, 27 SP, 28 ACC, 29 PROFILE_TYPE_INFO, 30 HOTNESS_COUNTER, 31 ENV, 32 PC, 33 }; 34 35 class StackSlotOperand { 36 public: 37 enum class BaseRegister { 38 FRAME_REGISTER, 39 STACK_REGISTER, 40 }; StackSlotOperand(BaseRegister baseReg,int32_t stackOffset)41 StackSlotOperand(BaseRegister baseReg, int32_t stackOffset) 42 : baseRegister(baseReg), offset(stackOffset) {} 43 44 ~StackSlotOperand() = default; 45 GetBaseRegister()46 BaseRegister GetBaseRegister() const 47 { 48 return baseRegister; 49 } 50 GetOffset()51 int32_t GetOffset() const 52 { 53 return offset; 54 } 55 IsFrameBase()56 bool IsFrameBase() const 57 { 58 return baseRegister == BaseRegister::FRAME_REGISTER; 59 } 60 private: 61 BaseRegister baseRegister; 62 int32_t offset = 0; 63 }; 64 65 66 using MacroParameter = std::variant<int8_t, int16_t, int32_t, int64_t, BaselineSpecialParameter, StackSlotOperand>; 67 using JumpLabel = panda::ecmascript::Label; 68 69 class MacroAssembler { 70 public: MacroAssembler()71 MacroAssembler() : allocator(NativeAreaAllocator()), chunk(&allocator) {} 72 virtual ~MacroAssembler() = default; 73 virtual uint8_t *GetBegin() const = 0; 74 virtual RelocMap &GetRelocInfo() = 0; 75 virtual size_t GetBufferCurrentSize() const = 0; 76 virtual void Move(const StackSlotOperand &dstStackSlot, Immediate value) = 0; 77 virtual void Move(const StackSlotOperand &dstStackSlot, 78 const StackSlotOperand &srcStackSlot) = 0; 79 virtual void Cmp(const StackSlotOperand &stackSlot, Immediate value) = 0; 80 virtual void Bind(JumpLabel &label) = 0; 81 virtual void Jz(JumpLabel &label) = 0; 82 virtual void Jnz(JumpLabel &label) = 0; 83 virtual void Jump(JumpLabel &label) = 0; 84 virtual void SaveReturnRegister(const StackSlotOperand &dstStackSlot) = 0; 85 virtual void CallBuiltin(Address funcAddress, 86 const std::vector<MacroParameter> ¶meters) = 0; 87 88 protected: 89 NativeAreaAllocator allocator; 90 Chunk chunk; 91 static constexpr int32_t FUNCTION_OFFSET_FROM_SP = -72; // 72: includes 9 slots 92 }; 93 94 } // namespace panda::ecmascript::kungfu 95 #endif // ECMASCRIPT_COMPILER_ASSEMBLER_MACRO_ASSEMBLER_H 96