1//==-- AlphaFrameLowering.h - Define frame lowering for Alpha --*- 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 ALPHA_FRAMEINFO_H
15#define ALPHA_FRAMEINFO_H
16
17#include "Alpha.h"
18#include "AlphaSubtarget.h"
19#include "llvm/Target/TargetFrameLowering.h"
20
21namespace llvm {
22  class AlphaSubtarget;
23
24class AlphaFrameLowering : public TargetFrameLowering {
25  const AlphaSubtarget &STI;
26  // FIXME: This should end in MachineFunctionInfo, not here!
27  mutable int curgpdist;
28public:
29  explicit AlphaFrameLowering(const AlphaSubtarget &sti)
30    : TargetFrameLowering(StackGrowsDown, 16, 0), STI(sti), curgpdist(0) {
31  }
32
33  /// emitProlog/emitEpilog - These methods insert prolog and epilog code into
34  /// the function.
35  void emitPrologue(MachineFunction &MF) const;
36  void emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const;
37
38  bool hasFP(const MachineFunction &MF) const;
39};
40
41} // End llvm namespace
42
43#endif
44