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/Target/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 requiresRegisterScavenging(const MachineFunction &MF) const override;
37 
38   bool trackLivenessAfterRegAlloc(const MachineFunction &MF) const override;
39 
40   bool useFPForScavengingIndex(const MachineFunction &MF) const override;
41 
42   void eliminateFrameIndex(MachineBasicBlock::iterator II,
43                            int SPAdj, unsigned FIOperandNum,
44                            RegScavenger *RS = nullptr) const override;
45 
46   // Debug information queries.
47   unsigned getFrameRegister(const MachineFunction &MF) const override;
48 
49   //! Return whether to emit frame moves
50   static bool needsFrameMoves(const MachineFunction &MF);
51 };
52 
53 } // end namespace llvm
54 
55 #endif
56