1 //===- ARCRegisterInfo.h - ARC Register Information Impl --------*- 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 // 9 // This file contains the ARC implementation of the MRegisterInfo class. 10 // 11 //===----------------------------------------------------------------------===// 12 13 #ifndef LLVM_LIB_TARGET_ARC_ARCREGISTERINFO_H 14 #define LLVM_LIB_TARGET_ARC_ARCREGISTERINFO_H 15 16 #include "llvm/CodeGen/TargetRegisterInfo.h" 17 18 #define GET_REGINFO_HEADER 19 #include "ARCGenRegisterInfo.inc" 20 21 namespace llvm { 22 23 class TargetInstrInfo; 24 class ARCSubtarget; 25 26 struct ARCRegisterInfo : public ARCGenRegisterInfo { 27 const ARCSubtarget &ST; 28 29 public: 30 ARCRegisterInfo(const ARCSubtarget &); 31 32 /// Code Generation virtual methods... 33 34 const MCPhysReg *getCalleeSavedRegs(const MachineFunction *MF) const override; 35 36 BitVector getReservedRegs(const MachineFunction &MF) const override; 37 38 bool requiresRegisterScavenging(const MachineFunction &MF) const override; 39 40 bool useFPForScavengingIndex(const MachineFunction &MF) const override; 41 42 bool supportsBackwardScavenger() const override { return true; } 43 44 bool eliminateFrameIndex(MachineBasicBlock::iterator II, int SPAdj, 45 unsigned FIOperandNum, 46 RegScavenger *RS = nullptr) const override; 47 48 const uint32_t *getCallPreservedMask(const MachineFunction &MF, 49 CallingConv::ID CC) const override; 50 51 // Debug information queries. 52 Register getFrameRegister(const MachineFunction &MF) const override; 53 54 //! Return whether to emit frame moves 55 static bool needsFrameMoves(const MachineFunction &MF); 56 }; 57 58 } // end namespace llvm 59 60 #endif // LLVM_LIB_TARGET_ARC_ARCREGISTERINFO_H 61