1 //===-- CSKYRegisterInfo.h - CSKY 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 CSKY implementation of the TargetRegisterInfo class.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #ifndef LLVM_LIB_TARGET_CSKY_CSKYREGISTERINFO_H
14 #define LLVM_LIB_TARGET_CSKY_CSKYREGISTERINFO_H
15 
16 #include "llvm/CodeGen/TargetRegisterInfo.h"
17 
18 #define GET_REGINFO_HEADER
19 #include "CSKYGenRegisterInfo.inc"
20 
21 namespace llvm {
22 class CSKYInstrInfo;
23 
24 class CSKYRegisterInfo : public CSKYGenRegisterInfo {
25 public:
26   CSKYRegisterInfo();
27 
28   const uint32_t *getCallPreservedMask(const MachineFunction &MF,
29                                        CallingConv::ID id) const override;
30   const uint32_t *getNoPreservedMask() const override;
31 
32   BitVector getReservedRegs(const MachineFunction &MF) const override;
33 
34   Register getFrameRegister(const MachineFunction &MF) const override;
35 
36   const MCPhysReg *getCalleeSavedRegs(const MachineFunction *MF) const override;
37 
38   bool eliminateFrameIndex(MachineBasicBlock::iterator MI, int SPAdj,
39                            unsigned FIOperandNum,
40                            RegScavenger *RS) const override;
41 
requiresFrameIndexScavenging(const MachineFunction & MF)42   bool requiresFrameIndexScavenging(const MachineFunction &MF) const override {
43     return true;
44   }
45 
requiresRegisterScavenging(const MachineFunction & MF)46   bool requiresRegisterScavenging(const MachineFunction &MF) const override {
47     return true;
48   }
49 
useFPForScavengingIndex(const MachineFunction & MF)50   bool useFPForScavengingIndex(const MachineFunction &MF) const override {
51     return false;
52   }
53 };
54 
55 } // namespace llvm
56 
57 #endif // LLVM_LIB_TARGET_CSKY_CSKYREGISTERINFO_H
58