1 //==--- MipsFrameLowering.h - Define frame lowering for Mips --*- 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 // 11 // 12 //===----------------------------------------------------------------------===// 13 14 #ifndef MIPS_FRAMEINFO_H 15 #define MIPS_FRAMEINFO_H 16 17 #include "Mips.h" 18 #include "MipsSubtarget.h" 19 #include "llvm/Target/TargetFrameLowering.h" 20 21 namespace llvm { 22 class MipsSubtarget; 23 24 class MipsFrameLowering : public TargetFrameLowering { 25 protected: 26 const MipsSubtarget &STI; 27 28 public: MipsFrameLowering(const MipsSubtarget & sti)29 explicit MipsFrameLowering(const MipsSubtarget &sti) 30 : TargetFrameLowering(StackGrowsDown, 8, 0), STI(sti) { 31 } 32 33 bool targetHandlesStackFrameRounding() const; 34 35 /// emitProlog/emitEpilog - These methods insert prolog and epilog code into 36 /// the function. 37 void emitPrologue(MachineFunction &MF) const; 38 void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const; 39 40 bool hasFP(const MachineFunction &MF) const; 41 42 void processFunctionBeforeCalleeSavedScan(MachineFunction &MF, 43 RegScavenger *RS) const; 44 }; 45 46 } // End llvm namespace 47 48 #endif 49