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