lib/Target/XCore/XCoreRegisterInfo.h

   1 //===-- XCoreRegisterInfo.h - XCore Register Information Impl ---*- C++ -*-===//
   2 //
   3 //                     The LLVM Compiler Infrastructure
   4 //
   5 // This file is distributed under the University of Illinois Open Source
   6 // License. See LICENSE.TXT for details.
   7 //
   8 //===----------------------------------------------------------------------===//
   9 //
  10 // This file contains the XCore implementation of the MRegisterInfo class.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 #ifndef LLVM_LIB_TARGET_XCORE_XCOREREGISTERINFO_H
  15 #define LLVM_LIB_TARGET_XCORE_XCOREREGISTERINFO_H
  16
  17 #include "llvm/CodeGen/TargetRegisterInfo.h"
  18
  19 #define GET_REGINFO_HEADER
  20 #include "XCoreGenRegisterInfo.inc"
  21
  22 namespace llvm {
  23
  24 class TargetInstrInfo;
  25
  26 struct XCoreRegisterInfo : public XCoreGenRegisterInfo {
  27 public:
  28   XCoreRegisterInfo();
  29
  30   /// Code Generation virtual methods...
  31
  32   const MCPhysReg *getCalleeSavedRegs(const MachineFunction *MF) const override;
  33
  34   BitVector getReservedRegs(const MachineFunction &MF) const override;
  35
  36   bool enableMultipleCopyHints() const override { return true; }
  37
  38   bool requiresRegisterScavenging(const MachineFunction &MF) const override;
  39
  40   bool trackLivenessAfterRegAlloc(const MachineFunction &MF) const override;
  41
  42   bool useFPForScavengingIndex(const MachineFunction &MF) const override;
  43
  44   void eliminateFrameIndex(MachineBasicBlock::iterator II,
  45                            int SPAdj, unsigned FIOperandNum,
  46                            RegScavenger *RS = nullptr) const override;
  47
  48   // Debug information queries.
  49   unsigned getFrameRegister(const MachineFunction &MF) const override;
  50
  51   //! Return whether to emit frame moves
  52   static bool needsFrameMoves(const MachineFunction &MF);
  53 };
  54
  55 } // end namespace llvm
  56
  57 #endif