Remove the mblaze backend from llvm.

[oota-llvm.git] / lib / Target / MBlaze / MBlazeRegisterInfo.cpp

diff --git a/lib/Target/MBlaze/MBlazeRegisterInfo.cpp b/lib/Target/MBlaze/MBlazeRegisterInfo.cpp
deleted file mode 100644 (file)
index 72fb8c6..0000000
--- a/lib/Target/MBlaze/MBlazeRegisterInfo.cpp
+++ /dev/null
@@ -1,145 +0,0 @@
-//===-- MBlazeRegisterInfo.cpp - MBlaze Register Information --------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file contains the MBlaze implementation of the TargetRegisterInfo
-// class.
-//
-//===----------------------------------------------------------------------===//
-
-#define DEBUG_TYPE "mblaze-frame-info"
-
-#include "MBlazeRegisterInfo.h"
-#include "MBlaze.h"
-#include "MBlazeMachineFunction.h"
-#include "MBlazeSubtarget.h"
-#include "llvm/ADT/BitVector.h"
-#include "llvm/ADT/STLExtras.h"
-#include "llvm/CodeGen/MachineFrameInfo.h"
-#include "llvm/CodeGen/MachineFunction.h"
-#include "llvm/CodeGen/MachineInstrBuilder.h"
-#include "llvm/CodeGen/ValueTypes.h"
-#include "llvm/IR/Constants.h"
-#include "llvm/IR/Function.h"
-#include "llvm/IR/Type.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/Debug.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/raw_ostream.h"
-#include "llvm/Target/TargetFrameLowering.h"
-#include "llvm/Target/TargetInstrInfo.h"
-#include "llvm/Target/TargetMachine.h"
-#include "llvm/Target/TargetOptions.h"
-
-#define GET_REGINFO_TARGET_DESC
-#include "MBlazeGenRegisterInfo.inc"
-
-using namespace llvm;
-
-MBlazeRegisterInfo::
-MBlazeRegisterInfo(const MBlazeSubtarget &ST)
-  : MBlazeGenRegisterInfo(MBlaze::R15), Subtarget(ST) {}
-
-unsigned MBlazeRegisterInfo::getPICCallReg() {
-  return MBlaze::R20;
-}
-
-//===----------------------------------------------------------------------===//
-// Callee Saved Registers methods
-//===----------------------------------------------------------------------===//
-
-/// MBlaze Callee Saved Registers
-const uint16_t* MBlazeRegisterInfo::
-getCalleeSavedRegs(const MachineFunction *MF) const {
-  // MBlaze callee-save register range is R20 - R31
-  static const uint16_t CalleeSavedRegs[] = {
-    MBlaze::R20, MBlaze::R21, MBlaze::R22, MBlaze::R23,
-    MBlaze::R24, MBlaze::R25, MBlaze::R26, MBlaze::R27,
-    MBlaze::R28, MBlaze::R29, MBlaze::R30, MBlaze::R31,
-    0
-  };
-
-  return CalleeSavedRegs;
-}
-
-BitVector MBlazeRegisterInfo::
-getReservedRegs(const MachineFunction &MF) const {
-  BitVector Reserved(getNumRegs());
-  Reserved.set(MBlaze::R0);
-  Reserved.set(MBlaze::R1);
-  Reserved.set(MBlaze::R2);
-  Reserved.set(MBlaze::R13);
-  Reserved.set(MBlaze::R14);
-  Reserved.set(MBlaze::R15);
-  Reserved.set(MBlaze::R16);
-  Reserved.set(MBlaze::R17);
-  Reserved.set(MBlaze::R18);
-  Reserved.set(MBlaze::R19);
-  return Reserved;
-}
-
-// FrameIndex represent objects inside a abstract stack.
-// We must replace FrameIndex with an stack/frame pointer
-// direct reference.
-void MBlazeRegisterInfo::
-eliminateFrameIndex(MachineBasicBlock::iterator II, int SPAdj,
-                    unsigned FIOperandNum, RegScavenger *RS) const {
-  MachineInstr &MI = *II;
-  MachineFunction &MF = *MI.getParent()->getParent();
-  MachineFrameInfo *MFI = MF.getFrameInfo();
-  unsigned OFIOperandNum = FIOperandNum == 2 ? 1 : 2;
-
-  DEBUG(dbgs() << "\nFunction : " << MF.getName() << "\n";
-        dbgs() << "<--------->\n" << MI);
-
-  int FrameIndex = MI.getOperand(FIOperandNum).getIndex();
-  int stackSize  = MFI->getStackSize();
-  int spOffset   = MFI->getObjectOffset(FrameIndex);
-
-  DEBUG(MBlazeFunctionInfo *MBlazeFI = MF.getInfo<MBlazeFunctionInfo>();
-        dbgs() << "FrameIndex : " << FrameIndex << "\n"
-               << "spOffset   : " << spOffset << "\n"
-               << "stackSize  : " << stackSize << "\n"
-               << "isFixed    : " << MFI->isFixedObjectIndex(FrameIndex) << "\n"
-               << "isLiveIn   : " << MBlazeFI->isLiveIn(FrameIndex) << "\n"
-               << "isSpill    : " << MFI->isSpillSlotObjectIndex(FrameIndex)
-               << "\n" );
-
-  // as explained on LowerFormalArguments, detect negative offsets
-  // and adjust SPOffsets considering the final stack size.
-  int Offset = (spOffset < 0) ? (stackSize - spOffset) : spOffset;
-  Offset += MI.getOperand(OFIOperandNum).getImm();
-
-  DEBUG(dbgs() << "Offset     : " << Offset << "\n" << "<--------->\n");
-
-  MI.getOperand(OFIOperandNum).ChangeToImmediate(Offset);
-  MI.getOperand(FIOperandNum).ChangeToRegister(getFrameRegister(MF), false);
-}
-
-void MBlazeRegisterInfo::
-processFunctionBeforeFrameFinalized(MachineFunction &MF, RegScavenger *) const {
-  // Set the stack offset where GP must be saved/loaded from.
-  MachineFrameInfo *MFI = MF.getFrameInfo();
-  MBlazeFunctionInfo *MBlazeFI = MF.getInfo<MBlazeFunctionInfo>();
-  if (MBlazeFI->needGPSaveRestore())
-    MFI->setObjectOffset(MBlazeFI->getGPFI(), MBlazeFI->getGPStackOffset());
-}
-
-unsigned MBlazeRegisterInfo::getFrameRegister(const MachineFunction &MF) const {
-  const TargetFrameLowering *TFI = MF.getTarget().getFrameLowering();
-
-  return TFI->hasFP(MF) ? MBlaze::R19 : MBlaze::R1;
-}
-
-unsigned MBlazeRegisterInfo::getEHExceptionRegister() const {
-  llvm_unreachable("What is the exception register");
-}
-
-unsigned MBlazeRegisterInfo::getEHHandlerRegister() const {
-  llvm_unreachable("What is the exception handler register");
-}