llvm/lib/Target/ARC/ARCRegisterInfo.h

   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 eliminateFrameIndex(MachineBasicBlock::iterator II, int SPAdj,
  43                            unsigned FIOperandNum,
  44                            RegScavenger *RS = nullptr) const override;
  45
  46   const uint32_t *getCallPreservedMask(const MachineFunction &MF,
  47                                        CallingConv::ID CC) const override;
  48
  49   // Debug information queries.
  50   Register getFrameRegister(const MachineFunction &MF) const override;
  51
  52   //! Return whether to emit frame moves
  53   static bool needsFrameMoves(const MachineFunction &MF);
  54 };
  55
  56 } // end namespace llvm
  57
  58 #endif // LLVM_LIB_TARGET_ARC_ARCREGISTERINFO_H