1 /* 2 * Copyright (c) 2023 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 #ifndef MAPLEBE_INCLUDE_CG_AARCH64_AARCH64_CFI_GENERATOR_H 16 #define MAPLEBE_INCLUDE_CG_AARCH64_AARCH64_CFI_GENERATOR_H 17 18 #include "cfi_generator.h" 19 20 namespace maplebe { 21 class AArch64GenCfi : public GenCfi { 22 public: AArch64GenCfi(CGFunc & func)23 explicit AArch64GenCfi(CGFunc &func) : GenCfi(func) 24 { 25 useFP = func.UseFP(); 26 if (func.GetMirModule().GetFlavor() == MIRFlavor::kFlavorLmbc) { 27 stackBaseReg = RFP; 28 } else { 29 stackBaseReg = useFP ? R29 : RSP; 30 } 31 } 32 ~AArch64GenCfi() override = default; 33 34 private: 35 void GenerateRegisterSaveDirective(BB &bb, Insn &stackDefInsn) override; 36 void GenerateRegisterRestoreDirective(BB &bb, Insn &stackRevertInsn) override; 37 38 /* frame pointer(x29) is available as a general-purpose register if useFP is set as false */ 39 AArch64reg stackBaseReg = RFP; 40 }; 41 } /* namespace maplebe */ 42 #endif /* MAPLEBE_INCLUDE_CG_AARCH64_AARCH64_CFI_GENERATOR_H */ 43