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, unsigned Alignment)
30     : TargetFrameLowering(StackGrowsDown, Alignment, 0, Alignment), STI(sti) {}
31 
32   static const MipsFrameLowering *create(MipsTargetMachine &TM,
33                                          const MipsSubtarget &ST);
34 
35   bool hasFP(const MachineFunction &MF) const;
36 
37 protected:
38   uint64_t estimateStackSize(const MachineFunction &MF) const;
39 };
40 
41 /// Create MipsFrameLowering objects.
42 const MipsFrameLowering *createMips16FrameLowering(const MipsSubtarget &ST);
43 const MipsFrameLowering *createMipsSEFrameLowering(const MipsSubtarget &ST);
44 
45 } // End llvm namespace
46 
47 #endif
48