src/gallium/drivers/radeon/AMDILFrameLowering.cpp

   1 //===----------------------- AMDILFrameLowering.cpp -----------------*- 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 // Interface to describe a layout of a stack frame on a AMDIL target machine
  11 //
  12 //===----------------------------------------------------------------------===//
  13 #include "AMDILFrameLowering.h"
  14 #include "llvm/CodeGen/MachineFrameInfo.h"
  15
  16 using namespace llvm;
  17 AMDGPUFrameLowering::AMDGPUFrameLowering(StackDirection D, unsigned StackAl,
  18     int LAO, unsigned TransAl)
  19   : TargetFrameLowering(D, StackAl, LAO, TransAl)
  20 {
  21 }
  22
  23 AMDGPUFrameLowering::~AMDGPUFrameLowering()
  24 {
  25 }
  26
  27 /// getFrameIndexOffset - Returns the displacement from the frame register to
  28 /// the stack frame of the specified index.
  29 int AMDGPUFrameLowering::getFrameIndexOffset(const MachineFunction &MF,
  30                                          int FI) const {
  31   const MachineFrameInfo *MFI = MF.getFrameInfo();
  32   return MFI->getObjectOffset(FI);
  33 }
  34
  35 const TargetFrameLowering::SpillSlot *
  36 AMDGPUFrameLowering::getCalleeSavedSpillSlots(unsigned &NumEntries) const
  37 {
  38   NumEntries = 0;
  39   return 0;
  40 }
  41 void
  42 AMDGPUFrameLowering::emitPrologue(MachineFunction &MF) const
  43 {
  44 }
  45 void
  46 AMDGPUFrameLowering::emitEpilogue(MachineFunction &MF, MachineBasicBlock &MBB) const
  47 {
  48 }
  49 bool
  50 AMDGPUFrameLowering::hasFP(const MachineFunction &MF) const
  51 {
  52   return false;
  53 }