1//===-- XtensaRegisterInfo.h - Xtensa 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 Xtensa implementation of the TargetRegisterInfo class.
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef LLVM_LIB_TARGET_XTENSA_XTENSAREGISTERINFO_H
14#define LLVM_LIB_TARGET_XTENSA_XTENSAREGISTERINFO_H
15
16#include "Xtensa.h"
17#include "llvm/CodeGen/TargetRegisterInfo.h"
18
19#define GET_REGINFO_HEADER
20#include "XtensaGenRegisterInfo.inc"
21
22namespace llvm {
23class TargetRegisterClass;
24class XtensaInstrInfo;
25class XtensaSubtarget;
26
27struct XtensaRegisterInfo : public XtensaGenRegisterInfo {
28public:
29 const XtensaSubtarget &Subtarget;
30
31 XtensaRegisterInfo(const XtensaSubtarget &STI);
32
33 bool requiresRegisterScavenging(const MachineFunction &MF) const override {
34 return true;
35 }
36
37 bool requiresFrameIndexScavenging(const MachineFunction &MF) const override {
38 return true;
39 }
40
41 const uint16_t *
42 getCalleeSavedRegs(const MachineFunction *MF = 0) const override;
43 const uint32_t *getCallPreservedMask(const MachineFunction &MF,
44 CallingConv::ID) const override;
45 BitVector getReservedRegs(const MachineFunction &MF) const override;
46
47 bool eliminateFrameIndex(MachineBasicBlock::iterator MI, int SPAdj,
48 unsigned FIOperandNum,
49 RegScavenger *RS = nullptr) const override;
50
51 Register getFrameRegister(const MachineFunction &MF) const override;
52};
53
54} // end namespace llvm
55
56#endif // LLVM_LIB_TARGET_XTENSA_REGISTERINFO_H
57

source code of llvm/lib/Target/Xtensa/XtensaRegisterInfo.h