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: 29 explicit MipsFrameLowering(const MipsSubtarget &sti) 30 : TargetFrameLowering(StackGrowsDown, sti.hasMips64() ? 16 : 8, 0), 31 STI(sti) { 32 } 33 34 bool targetHandlesStackFrameRounding() const; 35 36 /// emitProlog/emitEpilog - These methods insert prolog and epilog code into 37 /// the function. 38 void emitPrologue(MachineFunction &MF) const; 39 void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const; 40 41 bool hasFP(const MachineFunction &MF) const; 42 43 void processFunctionBeforeCalleeSavedScan(MachineFunction &MF, 44 RegScavenger *RS) const; 45 }; 46 47 } // End llvm namespace 48 49 #endif 50
