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 const XCoreSubtarget &STI; 26 public: 27 XCoreFrameLowering(const XCoreSubtarget &STI); 28 29 /// emitProlog/emitEpilog - These methods insert prolog and epilog code into 30 /// the function. 31 void emitPrologue(MachineFunction &MF) const; 32 void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const; 33 34 bool spillCalleeSavedRegisters(MachineBasicBlock &MBB, 35 MachineBasicBlock::iterator MI, 36 const std::vector<CalleeSavedInfo> &CSI, 37 const TargetRegisterInfo *TRI) const; 38 bool restoreCalleeSavedRegisters(MachineBasicBlock &MBB, 39 MachineBasicBlock::iterator MI, 40 const std::vector<CalleeSavedInfo> &CSI, 41 const TargetRegisterInfo *TRI) const; 42 43 bool hasFP(const MachineFunction &MF) const; 44 45 void processFunctionBeforeCalleeSavedScan(MachineFunction &MF, 46 RegScavenger *RS = NULL) const; 47 48 void processFunctionBeforeFrameFinalized(MachineFunction &MF) const; 49 50 //! Stack slot size (4 bytes) 51 static int stackSlotSize() { 52 return 4; 53 } 54 }; 55 } 56 57 #endif // XCOREFRAMEINFO_H 58
