1 //===- AArch64LegalizerInfo --------------------------------------*- C++ -*-==// 2 // 3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4 // See https://llvm.org/LICENSE.txt for license information. 5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6 // 7 //===----------------------------------------------------------------------===// 8 /// \file 9 /// This file declares the targeting of the Machinelegalizer class for 10 /// AArch64. 11 /// \todo This should be generated by TableGen. 12 //===----------------------------------------------------------------------===// 13 14 #ifndef LLVM_LIB_TARGET_AARCH64_AARCH64MACHINELEGALIZER_H 15 #define LLVM_LIB_TARGET_AARCH64_AARCH64MACHINELEGALIZER_H 16 17 #include "llvm/CodeGen/GlobalISel/GISelChangeObserver.h" 18 #include "llvm/CodeGen/GlobalISel/LegalizerHelper.h" 19 #include "llvm/CodeGen/GlobalISel/LegalizerInfo.h" 20 21 namespace llvm { 22 23 class LLVMContext; 24 class AArch64Subtarget; 25 26 /// This class provides the information for the target register banks. 27 class AArch64LegalizerInfo : public LegalizerInfo { 28 public: 29 AArch64LegalizerInfo(const AArch64Subtarget &ST); 30 31 bool legalizeCustom(LegalizerHelper &Helper, MachineInstr &MI) const override; 32 33 bool legalizeIntrinsic(LegalizerHelper &Helper, 34 MachineInstr &MI) const override; 35 36 private: 37 bool legalizeVaArg(MachineInstr &MI, MachineRegisterInfo &MRI, 38 MachineIRBuilder &MIRBuilder) const; 39 bool legalizeLoadStore(MachineInstr &MI, MachineRegisterInfo &MRI, 40 MachineIRBuilder &MIRBuilder, 41 GISelChangeObserver &Observer) const; 42 bool legalizeShlAshrLshr(MachineInstr &MI, MachineRegisterInfo &MRI, 43 MachineIRBuilder &MIRBuilder, 44 GISelChangeObserver &Observer) const; 45 46 bool legalizeSmallCMGlobalValue(MachineInstr &MI, MachineRegisterInfo &MRI, 47 MachineIRBuilder &MIRBuilder, 48 GISelChangeObserver &Observer) const; 49 bool legalizeVectorTrunc(MachineInstr &MI, LegalizerHelper &Helper) const; 50 const AArch64Subtarget *ST; 51 }; 52 } // End llvm namespace. 53 #endif 54