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 21 namespace 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 override; 31 void emitEpilogue(MachineFunction &MF, 32 MachineBasicBlock &MBB) const override; 33 34 bool spillCalleeSavedRegisters(MachineBasicBlock &MBB, 35 MachineBasicBlock::iterator MI, 36 const std::vector<CalleeSavedInfo> &CSI, 37 const TargetRegisterInfo *TRI) const override; 38 bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB, 39 MachineBasicBlock::iterator MI, 40 const std::vector<CalleeSavedInfo> &CSI, 41 const TargetRegisterInfo *TRI) const override; 42 43 void eliminateCallFramePseudoInstr(MachineFunction &MF, 44 MachineBasicBlock &MBB, 45 MachineBasicBlock::iterator I) const override; 46 47 bool hasFP(const MachineFunction &MF) const override; 48 49 void processFunctionBeforeCalleeSavedScan(MachineFunction &MF, 50 RegScavenger *RS = nullptr) const override; 51 52 void processFunctionBeforeFrameFinalized(MachineFunction &MF, 53 RegScavenger *RS = nullptr) const override; 54 55 //! Stack slot size (4 bytes) 56 static int stackSlotSize() { 57 return 4; 58 } 59 }; 60 } 61 62 #endif // XCOREFRAMEINFO_H 63
