1//===-- XCoreFrameLowering.h - Frame info for XCore Target ------*- C++ -*-===// 2// 3// The LLVM Compiler Infrastructure 4// 5// This file is distributed under the University of Illinois Open Source 6// License. See LICENSE.TXT for details. 7// 8//===----------------------------------------------------------------------===// 9// 10// This file contains XCore frame information that doesn't fit anywhere else 11// cleanly... 12// 13//===----------------------------------------------------------------------===// 14 15#ifndef XCOREFRAMEINFO_H 16#define XCOREFRAMEINFO_H 17 18#include "llvm/Target/TargetFrameLowering.h" 19#include "llvm/Target/TargetMachine.h" 20 21namespace llvm { 22 class XCoreSubtarget; 23 24 class XCoreFrameLowering: public TargetFrameLowering { 25 public: 26 XCoreFrameLowering(const XCoreSubtarget &STI); 27 28 /// emitProlog/emitEpilog - These methods insert prolog and epilog code into 29 /// the function. 30 void emitPrologue(MachineFunction &MF) const; 31 void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const; 32 33 bool spillCalleeSavedRegisters(MachineBasicBlock &MBB, 34 MachineBasicBlock::iterator MI, 35 const std::vector<CalleeSavedInfo> &CSI, 36 const TargetRegisterInfo *TRI) const; 37 bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB, 38 MachineBasicBlock::iterator MI, 39 const std::vector<CalleeSavedInfo> &CSI, 40 const TargetRegisterInfo *TRI) const; 41 42 bool hasFP(const MachineFunction &MF) const; 43 44 void processFunctionBeforeCalleeSavedScan(MachineFunction &MF, 45 RegScavenger *RS = NULL) const; 46 47 //! Stack slot size (4 bytes) 48 static int stackSlotSize() { 49 return 4; 50 } 51 }; 52} 53 54#endif // XCOREFRAMEINFO_H 55