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 LLVM_LIB_TARGET_XCORE_XCOREFRAMELOWERING_H 16 #define LLVM_LIB_TARGET_XCORE_XCOREFRAMELOWERING_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, 31 MachineBasicBlock &MBB) const override; 32 void emitEpilogue(MachineFunction &MF, 33 MachineBasicBlock &MBB) const override; 34 35 bool spillCalleeSavedRegisters(MachineBasicBlock &MBB, 36 MachineBasicBlock::iterator MI, 37 const std::vector<CalleeSavedInfo> &CSI, 38 const TargetRegisterInfo *TRI) const override; 39 bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB, 40 MachineBasicBlock::iterator MI, 41 const std::vector<CalleeSavedInfo> &CSI, 42 const TargetRegisterInfo *TRI) const override; 43 44 MachineBasicBlock::iterator 45 eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB, 46 MachineBasicBlock::iterator I) const override; 47 48 bool hasFP(const MachineFunction &MF) const override; 49 50 void determineCalleeSaves(MachineFunction &MF, BitVector &SavedRegs, 51 RegScavenger *RS = nullptr) const override; 52 53 void processFunctionBeforeFrameFinalized(MachineFunction &MF, 54 RegScavenger *RS = nullptr) const override; 55 56 //! Stack slot size (4 bytes) stackSlotSize()57 static int stackSlotSize() { 58 return 4; 59 } 60 }; 61 } 62 63 #endif 64