MFC 261991:

Upgrade our copy of llvm/clang to 3.4 release.  This version supports
all of the features in the current working draft of the upcoming C++
standard, provisionally named C++1y.

The code generator's performance is greatly increased, and the loop
auto-vectorizer is now enabled at -Os and -O2 in addition to -O3.  The
PowerPC backend has made several major improvements to code generation
quality and compile time, and the X86, SPARC, ARM32, Aarch64 and SystemZ
backends have all seen major feature work.

Release notes for llvm and clang can be found here:
<http://llvm.org/releases/3.4/docs/ReleaseNotes.html>
<http://llvm.org/releases/3.4/tools/clang/docs/ReleaseNotes.html>

MFC 262121 (by emaste):

Update lldb for clang/llvm 3.4 import

This commit largely restores the lldb source to the upstream r196259
snapshot with the addition of threaded inferior support and a few bug
fixes.

Specific upstream lldb revisions restored include:
   SVN      git
  181387  779e6ac
  181703  7bef4e2
  182099  b31044e
  182650  f2dcf35
  182683  0d91b80
  183862  15c1774
  183929  99447a6
  184177  0b2934b
  184948  4dc3761
  184954  007e7bc
  186990  eebd175

Sponsored by:	DARPA, AFRL

MFC 262186 (by emaste):

Fix mismerge in r262121

A break statement was lost in the merge.  The error had no functional
impact, but restore it to reduce the diff against upstream.

MFC 262303:

Pull in r197521 from upstream clang trunk (by rdivacky):

  Use the integrated assembler by default on FreeBSD/ppc and ppc64.

Requested by:	jhibbits

MFC 262611:

Pull in r196874 from upstream llvm trunk:

  Fix a crash that occurs when PWD is invalid.

  MCJIT needs to be able to run in hostile environments, even when PWD
  is invalid. There's no need to crash MCJIT in this case.

  The obvious fix is to simply leave MCContext's CompilationDir empty
  when PWD can't be determined. This way, MCJIT clients,
  and other clients that link with LLVM don't need a valid working directory.

  If we do want to guarantee valid CompilationDir, that should be done
  only for clients of getCompilationDir(). This is as simple as checking
  for an empty string.

  The only current use of getCompilationDir is EmitGenDwarfInfo, which
  won't conceivably run with an invalid working dir. However, in the
  purely hypothetically and untestable case that this happens, the
  AT_comp_dir will be omitted from the compilation_unit DIE.

This should help fix assertions occurring with ports-mgmt/tinderbox,
when it is using jails, and sometimes invalidates clang's current
working directory.

Reported by:	decke

MFC 262809:

Pull in r203007 from upstream clang trunk:

  Don't produce an alias between destructors with different calling conventions.

  Fixes pr19007.

(Please note that is an LLVM PR identifier, not a FreeBSD one.)

This should fix Firefox and/or libxul crashes (due to problems with
regparm/stdcall calling conventions) on i386.

Reported by:	multiple users on freebsd-current
PR:		bin/187103

MFC 263048:

Repair recognition of "CC" as an alias for the C++ compiler, since it
was silently broken by upstream for a Windows-specific use-case.

Apparently some versions of CMake still rely on this archaic feature...

Reported by:	rakuco

MFC 263049:

Garbage collect the old way of adding the libstdc++ include directories
in clang's InitHeaderSearch.cpp.  This has been superseded by David
Chisnall's commit in r255321.

Moreover, if libc++ is used, the libstdc++ include directories should
not be in the search path at all.  These directories are now only used
if you pass -stdlib=libstdc++.

1 files changed, 0 insertions, 488 deletions

diff --git a/contrib/llvm/lib/Target/MBlaze/MBlazeFrameLowering.cpp b/contrib/llvm/lib/Target/MBlaze/MBlazeFrameLowering.cpp
deleted file mode 100644
index 172304b..0000000
--- a/contrib/llvm/lib/Target/MBlaze/MBlazeFrameLowering.cpp
+++ /dev/null
@@ -1,488 +0,0 @@
-//===-- MBlazeFrameLowering.cpp - MBlaze Frame 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 TargetFrameLowering class.
-//
-//===----------------------------------------------------------------------===//
-
-#define DEBUG_TYPE "mblaze-frame-lowering"
-
-#include "MBlazeFrameLowering.h"
-#include "InstPrinter/MBlazeInstPrinter.h"
-#include "MBlazeInstrInfo.h"
-#include "MBlazeMachineFunction.h"
-#include "llvm/CodeGen/MachineFrameInfo.h"
-#include "llvm/CodeGen/MachineFunction.h"
-#include "llvm/CodeGen/MachineInstrBuilder.h"
-#include "llvm/CodeGen/MachineModuleInfo.h"
-#include "llvm/CodeGen/MachineRegisterInfo.h"
-#include "llvm/IR/DataLayout.h"
-#include "llvm/IR/Function.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/TargetOptions.h"
-
-using namespace llvm;
-
-static cl::opt<bool> MBDisableStackAdjust(
-  "disable-mblaze-stack-adjust",
-  cl::init(false),
-  cl::desc("Disable MBlaze stack layout adjustment."),
-  cl::Hidden);
-
-static void replaceFrameIndexes(MachineFunction &MF, 
-                                SmallVector<std::pair<int,int64_t>, 16> &FR) {
-  MachineFrameInfo *MFI = MF.getFrameInfo();
-  MBlazeFunctionInfo *MBlazeFI = MF.getInfo<MBlazeFunctionInfo>();
-  const SmallVector<std::pair<int,int64_t>, 16>::iterator FRB = FR.begin();
-  const SmallVector<std::pair<int,int64_t>, 16>::iterator FRE = FR.end();
-
-  SmallVector<std::pair<int,int64_t>, 16>::iterator FRI = FRB;
-  for (; FRI != FRE; ++FRI) {
-    MFI->RemoveStackObject(FRI->first);
-    int NFI = MFI->CreateFixedObject(4, FRI->second, true);
-    MBlazeFI->recordReplacement(FRI->first, NFI);
-
-    for (MachineFunction::iterator MB=MF.begin(), ME=MF.end(); MB!=ME; ++MB) {
-      MachineBasicBlock::iterator MBB = MB->begin();
-      const MachineBasicBlock::iterator MBE = MB->end();
-
-      for (; MBB != MBE; ++MBB) {
-        MachineInstr::mop_iterator MIB = MBB->operands_begin();
-        const MachineInstr::mop_iterator MIE = MBB->operands_end();
-
-        for (MachineInstr::mop_iterator MII = MIB; MII != MIE; ++MII) {
-          if (!MII->isFI() || MII->getIndex() != FRI->first) continue;
-          DEBUG(dbgs() << "FOUND FI#" << MII->getIndex() << "\n");
-          MII->setIndex(NFI);
-        }
-      }
-    }
-  }
-}
-
-//===----------------------------------------------------------------------===//
-//
-// Stack Frame Processing methods
-// +----------------------------+
-//
-// The stack is allocated decrementing the stack pointer on
-// the first instruction of a function prologue. Once decremented,
-// all stack references are are done through a positive offset
-// from the stack/frame pointer, so the stack is considered
-// to grow up.
-//
-//===----------------------------------------------------------------------===//
-
-static void analyzeFrameIndexes(MachineFunction &MF) {
-  if (MBDisableStackAdjust) return;
-
-  MachineFrameInfo *MFI = MF.getFrameInfo();
-  MBlazeFunctionInfo *MBlazeFI = MF.getInfo<MBlazeFunctionInfo>();
-  const MachineRegisterInfo &MRI = MF.getRegInfo();
-
-  MachineRegisterInfo::livein_iterator LII = MRI.livein_begin();
-  MachineRegisterInfo::livein_iterator LIE = MRI.livein_end();
-  const SmallVector<int, 16> &LiveInFI = MBlazeFI->getLiveIn();
-  SmallVector<MachineInstr*, 16> EraseInstr;
-  SmallVector<std::pair<int,int64_t>, 16> FrameRelocate;
-
-  MachineBasicBlock *MBB = MF.getBlockNumbered(0);
-  MachineBasicBlock::iterator MIB = MBB->begin();
-  MachineBasicBlock::iterator MIE = MBB->end();
-
-  int StackAdjust = 0;
-  int StackOffset = -28;
-
-  // In this loop we are searching frame indexes that corrospond to incoming
-  // arguments that are already in the stack. We look for instruction sequences
-  // like the following:
-  //    
-  //    LWI REG, FI1, 0
-  //    ...
-  //    SWI REG, FI2, 0
-  //
-  // As long as there are no defs of REG in the ... part, we can eliminate
-  // the SWI instruction because the value has already been stored to the
-  // stack by the caller. All we need to do is locate FI at the correct
-  // stack location according to the calling convensions.
-  //
-  // Additionally, if the SWI operation kills the def of REG then we don't
-  // need the LWI operation so we can erase it as well.
-  for (unsigned i = 0, e = LiveInFI.size(); i < e; ++i) {
-    for (MachineBasicBlock::iterator I=MIB; I != MIE; ++I) {
-      if (I->getOpcode() != MBlaze::LWI || I->getNumOperands() != 3 ||
-          !I->getOperand(1).isFI() || !I->getOperand(0).isReg() ||
-          I->getOperand(1).getIndex() != LiveInFI[i]) continue;
-
-      unsigned FIReg = I->getOperand(0).getReg();
-      MachineBasicBlock::iterator SI = I;
-      for (SI++; SI != MIE; ++SI) {
-        if (!SI->getOperand(0).isReg() ||
-            !SI->getOperand(1).isFI() ||
-            SI->getOpcode() != MBlaze::SWI) continue;
-
-        int FI = SI->getOperand(1).getIndex();
-        if (SI->getOperand(0).getReg() != FIReg ||
-            MFI->isFixedObjectIndex(FI) ||
-            MFI->getObjectSize(FI) != 4) continue;
-
-        if (SI->getOperand(0).isDef()) break;
-
-        if (SI->getOperand(0).isKill()) {
-          DEBUG(dbgs() << "LWI for FI#" << I->getOperand(1).getIndex() 
-                       << " removed\n");
-          EraseInstr.push_back(I);
-        }
-
-        EraseInstr.push_back(SI);
-        DEBUG(dbgs() << "SWI for FI#" << FI << " removed\n");
-
-        FrameRelocate.push_back(std::make_pair(FI,StackOffset));
-        DEBUG(dbgs() << "FI#" << FI << " relocated to " << StackOffset << "\n");
-
-        StackOffset -= 4;
-        StackAdjust += 4;
-        break;
-      }
-    }
-  }
-
-  // In this loop we are searching for frame indexes that corrospond to
-  // incoming arguments that are in registers. We look for instruction
-  // sequences like the following:
-  //    
-  //    ...  SWI REG, FI, 0
-  // 
-  // As long as the ... part does not define REG and if REG is an incoming
-  // parameter register then we know that, according to ABI convensions, the
-  // caller has allocated stack space for it already.  Instead of allocating
-  // stack space on our frame, we record the correct location in the callers
-  // frame.
-  for (MachineRegisterInfo::livein_iterator LI = LII; LI != LIE; ++LI) {
-    for (MachineBasicBlock::iterator I=MIB; I != MIE; ++I) {
-      if (I->definesRegister(LI->first))
-        break;
-
-      if (I->getOpcode() != MBlaze::SWI || I->getNumOperands() != 3 ||
-          !I->getOperand(1).isFI() || !I->getOperand(0).isReg() ||
-          I->getOperand(1).getIndex() < 0) continue;
-
-      if (I->getOperand(0).getReg() == LI->first) {
-        int FI = I->getOperand(1).getIndex();
-        MBlazeFI->recordLiveIn(FI);
-
-        int FILoc = 0;
-        switch (LI->first) {
-        default: llvm_unreachable("invalid incoming parameter!");
-        case MBlaze::R5:  FILoc = -4; break;
-        case MBlaze::R6:  FILoc = -8; break;
-        case MBlaze::R7:  FILoc = -12; break;
-        case MBlaze::R8:  FILoc = -16; break;
-        case MBlaze::R9:  FILoc = -20; break;
-        case MBlaze::R10: FILoc = -24; break;
-        }
-
-        StackAdjust += 4;
-        FrameRelocate.push_back(std::make_pair(FI,FILoc));
-        DEBUG(dbgs() << "FI#" << FI << " relocated to " << FILoc << "\n");
-        break;
-      }
-    }
-  }
-
-  // Go ahead and erase all of the instructions that we determined were
-  // no longer needed.
-  for (int i = 0, e = EraseInstr.size(); i < e; ++i)
-    MBB->erase(EraseInstr[i]);
-
-  // Replace all of the frame indexes that we have relocated with new
-  // fixed object frame indexes.
-  replaceFrameIndexes(MF, FrameRelocate);
-}
-
-static void interruptFrameLayout(MachineFunction &MF) {
-  const Function *F = MF.getFunction();
-  CallingConv::ID CallConv = F->getCallingConv();
-
-  // If this function is not using either the interrupt_handler
-  // calling convention or the save_volatiles calling convention
-  // then we don't need to do any additional frame layout.
-  if (CallConv != CallingConv::MBLAZE_INTR &&
-      CallConv != CallingConv::MBLAZE_SVOL)
-      return;
-
-  MachineFrameInfo *MFI = MF.getFrameInfo();
-  const MachineRegisterInfo &MRI = MF.getRegInfo();
-  const MBlazeInstrInfo &TII =
-    *static_cast<const MBlazeInstrInfo*>(MF.getTarget().getInstrInfo());
-
-  // Determine if the calling convention is the interrupt_handler
-  // calling convention. Some pieces of the prologue and epilogue
-  // only need to be emitted if we are lowering and interrupt handler.
-  bool isIntr = CallConv == CallingConv::MBLAZE_INTR;
-
-  // Determine where to put prologue and epilogue additions
-  MachineBasicBlock &MENT   = MF.front();
-  MachineBasicBlock &MEXT   = MF.back();
-
-  MachineBasicBlock::iterator MENTI = MENT.begin();
-  MachineBasicBlock::iterator MEXTI = prior(MEXT.end());
-
-  DebugLoc ENTDL = MENTI != MENT.end() ? MENTI->getDebugLoc() : DebugLoc();
-  DebugLoc EXTDL = MEXTI != MEXT.end() ? MEXTI->getDebugLoc() : DebugLoc();
-
-  // Store the frame indexes generated during prologue additions for use
-  // when we are generating the epilogue additions.
-  SmallVector<int, 10> VFI;
-
-  // Build the prologue SWI for R3 - R12 if needed. Note that R11 must
-  // always have a SWI because it is used when processing RMSR.
-  for (unsigned r = MBlaze::R3; r <= MBlaze::R12; ++r) {
-    if (!MRI.isPhysRegUsed(r) && !(isIntr && r == MBlaze::R11)) continue;
-    
-    int FI = MFI->CreateStackObject(4,4,false,false);
-    VFI.push_back(FI);
-
-    BuildMI(MENT, MENTI, ENTDL, TII.get(MBlaze::SWI), r)
-      .addFrameIndex(FI).addImm(0);
-  }
-    
-  // Build the prologue SWI for R17, R18
-  int R17FI = MFI->CreateStackObject(4,4,false,false);
-  int R18FI = MFI->CreateStackObject(4,4,false,false);
-
-  BuildMI(MENT, MENTI, ENTDL, TII.get(MBlaze::SWI), MBlaze::R17)
-    .addFrameIndex(R17FI).addImm(0);
-    
-  BuildMI(MENT, MENTI, ENTDL, TII.get(MBlaze::SWI), MBlaze::R18)
-    .addFrameIndex(R18FI).addImm(0);
-
-  // Buid the prologue SWI and the epilogue LWI for RMSR if needed
-  if (isIntr) {
-    int MSRFI = MFI->CreateStackObject(4,4,false,false);
-    BuildMI(MENT, MENTI, ENTDL, TII.get(MBlaze::MFS), MBlaze::R11)
-      .addReg(MBlaze::RMSR);
-    BuildMI(MENT, MENTI, ENTDL, TII.get(MBlaze::SWI), MBlaze::R11)
-      .addFrameIndex(MSRFI).addImm(0);
-
-    BuildMI(MEXT, MEXTI, EXTDL, TII.get(MBlaze::LWI), MBlaze::R11)
-      .addFrameIndex(MSRFI).addImm(0);
-    BuildMI(MEXT, MEXTI, EXTDL, TII.get(MBlaze::MTS), MBlaze::RMSR)
-      .addReg(MBlaze::R11);
-  }
-
-  // Build the epilogue LWI for R17, R18
-  BuildMI(MEXT, MEXTI, EXTDL, TII.get(MBlaze::LWI), MBlaze::R18)
-    .addFrameIndex(R18FI).addImm(0);
-
-  BuildMI(MEXT, MEXTI, EXTDL, TII.get(MBlaze::LWI), MBlaze::R17)
-    .addFrameIndex(R17FI).addImm(0);
-
-  // Build the epilogue LWI for R3 - R12 if needed
-  for (unsigned r = MBlaze::R12, i = VFI.size(); r >= MBlaze::R3; --r) {
-    if (!MRI.isPhysRegUsed(r)) continue;
-    BuildMI(MEXT, MEXTI, EXTDL, TII.get(MBlaze::LWI), r)
-      .addFrameIndex(VFI[--i]).addImm(0);
-  }
-}
-
-static void determineFrameLayout(MachineFunction &MF) {
-  MachineFrameInfo *MFI = MF.getFrameInfo();
-  MBlazeFunctionInfo *MBlazeFI = MF.getInfo<MBlazeFunctionInfo>();
-
-  // Replace the dummy '0' SPOffset by the negative offsets, as explained on
-  // LowerFORMAL_ARGUMENTS. Leaving '0' for while is necessary to avoid
-  // the approach done by calculateFrameObjectOffsets to the stack frame.
-  MBlazeFI->adjustLoadArgsFI(MFI);
-  MBlazeFI->adjustStoreVarArgsFI(MFI);
-
-  // Get the number of bytes to allocate from the FrameInfo
-  unsigned FrameSize = MFI->getStackSize();
-  DEBUG(dbgs() << "Original Frame Size: " << FrameSize << "\n" );
-
-  // Get the alignments provided by the target, and the maximum alignment
-  // (if any) of the fixed frame objects.
-  // unsigned MaxAlign = MFI->getMaxAlignment();
-  unsigned TargetAlign = MF.getTarget().getFrameLowering()->getStackAlignment();
-  unsigned AlignMask = TargetAlign - 1;
-
-  // Make sure the frame is aligned.
-  FrameSize = (FrameSize + AlignMask) & ~AlignMask;
-  MFI->setStackSize(FrameSize);
-  DEBUG(dbgs() << "Aligned Frame Size: " << FrameSize << "\n" );
-}
-
-int MBlazeFrameLowering::getFrameIndexOffset(const MachineFunction &MF, int FI) 
-  const {
-  const MBlazeFunctionInfo *MBlazeFI = MF.getInfo<MBlazeFunctionInfo>();
-  if (MBlazeFI->hasReplacement(FI))
-    FI = MBlazeFI->getReplacement(FI);
-  return TargetFrameLowering::getFrameIndexOffset(MF,FI);
-}
-
-// hasFP - Return true if the specified function should have a dedicated frame
-// pointer register.  This is true if the function has variable sized allocas or
-// if frame pointer elimination is disabled.
-bool MBlazeFrameLowering::hasFP(const MachineFunction &MF) const {
-  const MachineFrameInfo *MFI = MF.getFrameInfo();
-  return MF.getTarget().Options.DisableFramePointerElim(MF) ||
-         MFI->hasVarSizedObjects();
-}
-
-void MBlazeFrameLowering::emitPrologue(MachineFunction &MF) const {
-  MachineBasicBlock &MBB   = MF.front();
-  MachineFrameInfo *MFI    = MF.getFrameInfo();
-  const MBlazeInstrInfo &TII =
-    *static_cast<const MBlazeInstrInfo*>(MF.getTarget().getInstrInfo());
-  MBlazeFunctionInfo *MBlazeFI = MF.getInfo<MBlazeFunctionInfo>();
-  MachineBasicBlock::iterator MBBI = MBB.begin();
-  DebugLoc DL = MBBI != MBB.end() ? MBBI->getDebugLoc() : DebugLoc();
-
-  CallingConv::ID CallConv = MF.getFunction()->getCallingConv();
-  bool requiresRA = CallConv == CallingConv::MBLAZE_INTR;
-
-  // Determine the correct frame layout
-  determineFrameLayout(MF);
-
-  // Get the number of bytes to allocate from the FrameInfo.
-  unsigned StackSize = MFI->getStackSize();
-
-  // No need to allocate space on the stack.
-  if (StackSize == 0 && !MFI->adjustsStack() && !requiresRA) return;
-
-  int FPOffset = MBlazeFI->getFPStackOffset();
-  int RAOffset = MBlazeFI->getRAStackOffset();
-
-  // Adjust stack : addi R1, R1, -imm
-  BuildMI(MBB, MBBI, DL, TII.get(MBlaze::ADDIK), MBlaze::R1)
-      .addReg(MBlaze::R1).addImm(-StackSize);
-
-  // swi  R15, R1, stack_loc
-  if (MFI->adjustsStack() || requiresRA) {
-    BuildMI(MBB, MBBI, DL, TII.get(MBlaze::SWI))
-        .addReg(MBlaze::R15).addReg(MBlaze::R1).addImm(RAOffset);
-  }
-
-  if (hasFP(MF)) {
-    // swi  R19, R1, stack_loc
-    BuildMI(MBB, MBBI, DL, TII.get(MBlaze::SWI))
-      .addReg(MBlaze::R19).addReg(MBlaze::R1).addImm(FPOffset);
-
-    // add R19, R1, R0
-    BuildMI(MBB, MBBI, DL, TII.get(MBlaze::ADD), MBlaze::R19)
-      .addReg(MBlaze::R1).addReg(MBlaze::R0);
-  }
-}
-
-void MBlazeFrameLowering::emitEpilogue(MachineFunction &MF,
-                                   MachineBasicBlock &MBB) const {
-  MachineBasicBlock::iterator MBBI = MBB.getLastNonDebugInstr();
-  MachineFrameInfo *MFI            = MF.getFrameInfo();
-  MBlazeFunctionInfo *MBlazeFI     = MF.getInfo<MBlazeFunctionInfo>();
-  const MBlazeInstrInfo &TII =
-    *static_cast<const MBlazeInstrInfo*>(MF.getTarget().getInstrInfo());
-
-  DebugLoc dl = MBBI->getDebugLoc();
-
-  CallingConv::ID CallConv = MF.getFunction()->getCallingConv();
-  bool requiresRA = CallConv == CallingConv::MBLAZE_INTR;
-
-  // Get the FI's where RA and FP are saved.
-  int FPOffset = MBlazeFI->getFPStackOffset();
-  int RAOffset = MBlazeFI->getRAStackOffset();
-
-  if (hasFP(MF)) {
-    // add R1, R19, R0
-    BuildMI(MBB, MBBI, dl, TII.get(MBlaze::ADD), MBlaze::R1)
-      .addReg(MBlaze::R19).addReg(MBlaze::R0);
-
-    // lwi  R19, R1, stack_loc
-    BuildMI(MBB, MBBI, dl, TII.get(MBlaze::LWI), MBlaze::R19)
-      .addReg(MBlaze::R1).addImm(FPOffset);
-  }
-
-  // lwi R15, R1, stack_loc
-  if (MFI->adjustsStack() || requiresRA) {
-    BuildMI(MBB, MBBI, dl, TII.get(MBlaze::LWI), MBlaze::R15)
-      .addReg(MBlaze::R1).addImm(RAOffset);
-  }
-
-  // Get the number of bytes from FrameInfo
-  int StackSize = (int) MFI->getStackSize();
-
-  // addi R1, R1, imm
-  if (StackSize) {
-    BuildMI(MBB, MBBI, dl, TII.get(MBlaze::ADDIK), MBlaze::R1)
-      .addReg(MBlaze::R1).addImm(StackSize);
-  }
-}
-
-// Eliminate ADJCALLSTACKDOWN/ADJCALLSTACKUP pseudo instructions
-void MBlazeFrameLowering::
-eliminateCallFramePseudoInstr(MachineFunction &MF, MachineBasicBlock &MBB,
-                              MachineBasicBlock::iterator I) const {
-  const MBlazeInstrInfo &TII =
-    *static_cast<const MBlazeInstrInfo*>(MF.getTarget().getInstrInfo());
-  if (!hasReservedCallFrame(MF)) {
-    // If we have a frame pointer, turn the adjcallstackup instruction into a
-    // 'addi r1, r1, -<amt>' and the adjcallstackdown instruction into
-    // 'addi r1, r1, <amt>'
-    MachineInstr *Old = I;
-    int Amount = Old->getOperand(0).getImm() + 4;
-    if (Amount != 0) {
-      // We need to keep the stack aligned properly.  To do this, we round the
-      // amount of space needed for the outgoing arguments up to the next
-      // alignment boundary.
-      unsigned Align = getStackAlignment();
-      Amount = (Amount+Align-1)/Align*Align;
-
-      MachineInstr *New;
-      if (Old->getOpcode() == MBlaze::ADJCALLSTACKDOWN) {
-        New = BuildMI(MF,Old->getDebugLoc(), TII.get(MBlaze::ADDIK),MBlaze::R1)
-                .addReg(MBlaze::R1).addImm(-Amount);
-      } else {
-        assert(Old->getOpcode() == MBlaze::ADJCALLSTACKUP);
-        New = BuildMI(MF,Old->getDebugLoc(), TII.get(MBlaze::ADDIK),MBlaze::R1)
-                .addReg(MBlaze::R1).addImm(Amount);
-      }
-
-      // Replace the pseudo instruction with a new instruction...
-      MBB.insert(I, New);
-    }
-  }
-
-  // Simply discard ADJCALLSTACKDOWN, ADJCALLSTACKUP instructions.
-  MBB.erase(I);
-}
-
-
-void MBlazeFrameLowering::
-processFunctionBeforeCalleeSavedScan(MachineFunction &MF,
-                                     RegScavenger *RS) const {
-  MachineFrameInfo *MFI = MF.getFrameInfo();
-  MBlazeFunctionInfo *MBlazeFI = MF.getInfo<MBlazeFunctionInfo>();
-  CallingConv::ID CallConv = MF.getFunction()->getCallingConv();
-  bool requiresRA = CallConv == CallingConv::MBLAZE_INTR;
-
-  if (MFI->adjustsStack() || requiresRA) {
-    MBlazeFI->setRAStackOffset(0);
-    MFI->CreateFixedObject(4,0,true);
-  }
-
-  if (hasFP(MF)) {
-    MBlazeFI->setFPStackOffset(4);
-    MFI->CreateFixedObject(4,4,true);
-  }
-
-  interruptFrameLayout(MF);
-  analyzeFrameIndexes(MF);
-}