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 |
20 | #include "XtensaGenRegisterInfo.inc" |
21 | |
22 | namespace llvm { |
23 | class TargetRegisterClass; |
24 | class XtensaInstrInfo; |
25 | class XtensaSubtarget; |
26 | |
27 | struct XtensaRegisterInfo : public XtensaGenRegisterInfo { |
28 | public: |
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 | |