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; 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 void eliminateCallFramePseudoInstr(MachineFunction &MF, 43 MachineBasicBlock &MBB, 44 MachineBasicBlock::iterator I) const; 45 46 bool hasFP(const MachineFunction &MF) const; 47 48 void processFunctionBeforeCalleeSavedScan(MachineFunction &MF, 49 RegScavenger *RS = NULL) const; 50 51 //! Stack slot size (4 bytes) stackSlotSize()52 static int stackSlotSize() { 53 return 4; 54 } 55 }; 56 } 57 58 #endif // XCOREFRAMEINFO_H 59