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 #include "llvm/CodeGen/MachineRegisterInfo.h" 21 22 namespace llvm { 23 24 class LLVMContext; 25 class AArch64Subtarget; 26 27 /// This class provides the information for the target register banks. 28 class AArch64LegalizerInfo : public LegalizerInfo { 29 public: 30 AArch64LegalizerInfo(const AArch64Subtarget &ST); 31 32 bool legalizeCustom(LegalizerHelper &Helper, MachineInstr &MI) const override; 33 34 bool legalizeIntrinsic(LegalizerHelper &Helper, 35 MachineInstr &MI) const override; 36 37 private: 38 bool legalizeVaArg(MachineInstr &MI, MachineRegisterInfo &MRI, 39 MachineIRBuilder &MIRBuilder) const; 40 bool legalizeLoadStore(MachineInstr &MI, MachineRegisterInfo &MRI, 41 MachineIRBuilder &MIRBuilder, 42 GISelChangeObserver &Observer) const; 43 bool legalizeShlAshrLshr(MachineInstr &MI, MachineRegisterInfo &MRI, 44 MachineIRBuilder &MIRBuilder, 45 GISelChangeObserver &Observer) const; 46 47 bool legalizeSmallCMGlobalValue(MachineInstr &MI, MachineRegisterInfo &MRI, 48 MachineIRBuilder &MIRBuilder, 49 GISelChangeObserver &Observer) const; 50 bool legalizeVectorTrunc(MachineInstr &MI, LegalizerHelper &Helper) const; 51 bool legalizeBitfieldExtract(MachineInstr &MI, MachineRegisterInfo &MRI, 52 LegalizerHelper &Helper) const; 53 bool legalizeRotate(MachineInstr &MI, MachineRegisterInfo &MRI, 54 LegalizerHelper &Helper) const; 55 bool legalizeCTPOP(MachineInstr &MI, MachineRegisterInfo &MRI, 56 LegalizerHelper &Helper) const; 57 bool legalizeAtomicCmpxchg128(MachineInstr &MI, MachineRegisterInfo &MRI, 58 LegalizerHelper &Helper) const; 59 bool legalizeCTTZ(MachineInstr &MI, LegalizerHelper &Helper) const; 60 const AArch64Subtarget *ST; 61 }; 62 } // End llvm namespace. 63 #endif 64