1//===-- XCoreFrameLowering.h - Frame info for XCore Target ------*- 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 XCore frame information that doesn't fit anywhere else
10// cleanly...
11//
12//===----------------------------------------------------------------------===//
13
14#ifndef LLVM_LIB_TARGET_XCORE_XCOREFRAMELOWERING_H
15#define LLVM_LIB_TARGET_XCORE_XCOREFRAMELOWERING_H
16
17#include "llvm/CodeGen/TargetFrameLowering.h"
18#include "llvm/Target/TargetMachine.h"
19
20namespace llvm {
21 class XCoreSubtarget;
22
23 class XCoreFrameLowering: public TargetFrameLowering {
24 public:
25 XCoreFrameLowering(const XCoreSubtarget &STI);
26
27 /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
28 /// the function.
29 void emitPrologue(MachineFunction &MF,
30 MachineBasicBlock &MBB) const override;
31 void emitEpilogue(MachineFunction &MF,
32 MachineBasicBlock &MBB) const override;
33
34 bool
35 spillCalleeSavedRegisters(MachineBasicBlock &MBB,
36 MachineBasicBlock::iterator MI,
37 ArrayRef<CalleeSavedInfo> CSI,
38 const TargetRegisterInfo *TRI) const override;
39 bool
40 restoreCalleeSavedRegisters(MachineBasicBlock &MBB,
41 MachineBasicBlock::iterator MI,
42 MutableArrayRef<CalleeSavedInfo> CSI,
43 const TargetRegisterInfo *TRI) const override;
44
45 MachineBasicBlock::iterator
46 eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
47 MachineBasicBlock::iterator I) const override;
48
49 bool hasFP(const MachineFunction &MF) const override;
50
51 void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs,
52 RegScavenger *RS = nullptr) const override;
53
54 void processFunctionBeforeFrameFinalized(MachineFunction &MF,
55 RegScavenger *RS = nullptr) const override;
56
57 //! Stack slot size (4 bytes)
58 static int stackSlotSize() {
59 return 4;
60 }
61 };
62}
63
64#endif
65