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1 //===-- MipsSEFrameLowering.h - Mips32/64 frame lowering --------*- 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 MIPSSE_FRAMEINFO_H
15 #define MIPSSE_FRAMEINFO_H
16
17 #include "MipsFrameLowering.h"
18
19 namespace llvm {
20
21 class MipsSEFrameLowering : public MipsFrameLowering {
22 public:
23   explicit MipsSEFrameLowering(const MipsSubtarget &STI)
24     : MipsFrameLowering(STI, STI.hasMips64() ? 16 : 8) {}
25
26   /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
27   /// the function.
28   void emitPrologue(MachineFunction &MF) const;
29   void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
30
31   void eliminateCallFramePseudoInstr(MachineFunction &MF,
32                                      MachineBasicBlock &MBB,
33                                      MachineBasicBlock::iterator I) const;
34
35   bool spillCalleeSavedRegisters(MachineBasicBlock &MBB,
36                                  MachineBasicBlock::iterator MI,
37                                  const std::vector<CalleeSavedInfo> &CSI,
38                                  const TargetRegisterInfo *TRI) const;
39
40   bool hasReservedCallFrame(const MachineFunction &MF) const;
41
42   void processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
43                                             RegScavenger *RS) const;
44   unsigned ehDataReg(unsigned I) const;
45 };
46
47 } // End llvm namespace
48
49 #endif