lib/Target/Alpha/AlphaFrameLowering.h

   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
  21 namespace llvm {
  22   class AlphaSubtarget;
  23
  24 class AlphaFrameLowering : public TargetFrameLowering {
  25   const AlphaSubtarget &STI;
  26   // FIXME: This should end in MachineFunctionInfo, not here!
  27   mutable int curgpdist;
  28 public:
  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