1 files changed, 0 insertions, 364 deletions

diff --git a/contrib/llvm/lib/CodeGen/MachineInstrBundle.cpp b/contrib/llvm/lib/CodeGen/MachineInstrBundle.cpp
deleted file mode 100644
index 32e266e9401e..000000000000
--- a/contrib/llvm/lib/CodeGen/MachineInstrBundle.cpp
+++ /dev/null
@@ -1,364 +0,0 @@
-//===-- lib/CodeGen/MachineInstrBundle.cpp --------------------------------===//
-//
-// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
-// See https://llvm.org/LICENSE.txt for license information.
-// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/CodeGen/MachineInstrBundle.h"
-#include "llvm/ADT/SmallSet.h"
-#include "llvm/ADT/SmallVector.h"
-#include "llvm/CodeGen/MachineFunctionPass.h"
-#include "llvm/CodeGen/MachineInstrBuilder.h"
-#include "llvm/CodeGen/Passes.h"
-#include "llvm/CodeGen/TargetInstrInfo.h"
-#include "llvm/CodeGen/TargetRegisterInfo.h"
-#include "llvm/CodeGen/TargetSubtargetInfo.h"
-#include "llvm/Target/TargetMachine.h"
-#include <utility>
-using namespace llvm;
-
-namespace {
-  class UnpackMachineBundles : public MachineFunctionPass {
-  public:
-    static char ID; // Pass identification
-    UnpackMachineBundles(
-        std::function<bool(const MachineFunction &)> Ftor = nullptr)
-        : MachineFunctionPass(ID), PredicateFtor(std::move(Ftor)) {
-      initializeUnpackMachineBundlesPass(*PassRegistry::getPassRegistry());
-    }
-
-    bool runOnMachineFunction(MachineFunction &MF) override;
-
-  private:
-    std::function<bool(const MachineFunction &)> PredicateFtor;
-  };
-} // end anonymous namespace
-
-char UnpackMachineBundles::ID = 0;
-char &llvm::UnpackMachineBundlesID = UnpackMachineBundles::ID;
-INITIALIZE_PASS(UnpackMachineBundles, "unpack-mi-bundles",
-                "Unpack machine instruction bundles", false, false)
-
-bool UnpackMachineBundles::runOnMachineFunction(MachineFunction &MF) {
-  if (PredicateFtor && !PredicateFtor(MF))
-    return false;
-
-  bool Changed = false;
-  for (MachineFunction::iterator I = MF.begin(), E = MF.end(); I != E; ++I) {
-    MachineBasicBlock *MBB = &*I;
-
-    for (MachineBasicBlock::instr_iterator MII = MBB->instr_begin(),
-           MIE = MBB->instr_end(); MII != MIE; ) {
-      MachineInstr *MI = &*MII;
-
-      // Remove BUNDLE instruction and the InsideBundle flags from bundled
-      // instructions.
-      if (MI->isBundle()) {
-        while (++MII != MIE && MII->isBundledWithPred()) {
-          MII->unbundleFromPred();
-          for (unsigned i = 0, e = MII->getNumOperands(); i != e; ++i) {
-            MachineOperand &MO = MII->getOperand(i);
-            if (MO.isReg() && MO.isInternalRead())
-              MO.setIsInternalRead(false);
-          }
-        }
-        MI->eraseFromParent();
-
-        Changed = true;
-        continue;
-      }
-
-      ++MII;
-    }
-  }
-
-  return Changed;
-}
-
-FunctionPass *
-llvm::createUnpackMachineBundles(
-    std::function<bool(const MachineFunction &)> Ftor) {
-  return new UnpackMachineBundles(std::move(Ftor));
-}
-
-namespace {
-  class FinalizeMachineBundles : public MachineFunctionPass {
-  public:
-    static char ID; // Pass identification
-    FinalizeMachineBundles() : MachineFunctionPass(ID) {
-      initializeFinalizeMachineBundlesPass(*PassRegistry::getPassRegistry());
-    }
-
-    bool runOnMachineFunction(MachineFunction &MF) override;
-  };
-} // end anonymous namespace
-
-char FinalizeMachineBundles::ID = 0;
-char &llvm::FinalizeMachineBundlesID = FinalizeMachineBundles::ID;
-INITIALIZE_PASS(FinalizeMachineBundles, "finalize-mi-bundles",
-                "Finalize machine instruction bundles", false, false)
-
-bool FinalizeMachineBundles::runOnMachineFunction(MachineFunction &MF) {
-  return llvm::finalizeBundles(MF);
-}
-
-/// Return the first found DebugLoc that has a DILocation, given a range of
-/// instructions. The search range is from FirstMI to LastMI (exclusive). If no
-/// DILocation is found, then an empty location is returned.
-static DebugLoc getDebugLoc(MachineBasicBlock::instr_iterator FirstMI,
-                            MachineBasicBlock::instr_iterator LastMI) {
-  for (auto MII = FirstMI; MII != LastMI; ++MII)
-    if (MII->getDebugLoc().get())
-      return MII->getDebugLoc();
-  return DebugLoc();
-}
-
-/// finalizeBundle - Finalize a machine instruction bundle which includes
-/// a sequence of instructions starting from FirstMI to LastMI (exclusive).
-/// This routine adds a BUNDLE instruction to represent the bundle, it adds
-/// IsInternalRead markers to MachineOperands which are defined inside the
-/// bundle, and it copies externally visible defs and uses to the BUNDLE
-/// instruction.
-void llvm::finalizeBundle(MachineBasicBlock &MBB,
-                          MachineBasicBlock::instr_iterator FirstMI,
-                          MachineBasicBlock::instr_iterator LastMI) {
-  assert(FirstMI != LastMI && "Empty bundle?");
-  MIBundleBuilder Bundle(MBB, FirstMI, LastMI);
-
-  MachineFunction &MF = *MBB.getParent();
-  const TargetInstrInfo *TII = MF.getSubtarget().getInstrInfo();
-  const TargetRegisterInfo *TRI = MF.getSubtarget().getRegisterInfo();
-
-  MachineInstrBuilder MIB =
-      BuildMI(MF, getDebugLoc(FirstMI, LastMI), TII->get(TargetOpcode::BUNDLE));
-  Bundle.prepend(MIB);
-
-  SmallVector<unsigned, 32> LocalDefs;
-  SmallSet<unsigned, 32> LocalDefSet;
-  SmallSet<unsigned, 8> DeadDefSet;
-  SmallSet<unsigned, 16> KilledDefSet;
-  SmallVector<unsigned, 8> ExternUses;
-  SmallSet<unsigned, 8> ExternUseSet;
-  SmallSet<unsigned, 8> KilledUseSet;
-  SmallSet<unsigned, 8> UndefUseSet;
-  SmallVector<MachineOperand*, 4> Defs;
-  for (auto MII = FirstMI; MII != LastMI; ++MII) {
-    for (unsigned i = 0, e = MII->getNumOperands(); i != e; ++i) {
-      MachineOperand &MO = MII->getOperand(i);
-      if (!MO.isReg())
-        continue;
-      if (MO.isDef()) {
-        Defs.push_back(&MO);
-        continue;
-      }
-
-      unsigned Reg = MO.getReg();
-      if (!Reg)
-        continue;
-      assert(TargetRegisterInfo::isPhysicalRegister(Reg));
-      if (LocalDefSet.count(Reg)) {
-        MO.setIsInternalRead();
-        if (MO.isKill())
-          // Internal def is now killed.
-          KilledDefSet.insert(Reg);
-      } else {
-        if (ExternUseSet.insert(Reg).second) {
-          ExternUses.push_back(Reg);
-          if (MO.isUndef())
-            UndefUseSet.insert(Reg);
-        }
-        if (MO.isKill())
-          // External def is now killed.
-          KilledUseSet.insert(Reg);
-      }
-    }
-
-    for (unsigned i = 0, e = Defs.size(); i != e; ++i) {
-      MachineOperand &MO = *Defs[i];
-      unsigned Reg = MO.getReg();
-      if (!Reg)
-        continue;
-
-      if (LocalDefSet.insert(Reg).second) {
-        LocalDefs.push_back(Reg);
-        if (MO.isDead()) {
-          DeadDefSet.insert(Reg);
-        }
-      } else {
-        // Re-defined inside the bundle, it's no longer killed.
-        KilledDefSet.erase(Reg);
-        if (!MO.isDead())
-          // Previously defined but dead.
-          DeadDefSet.erase(Reg);
-      }
-
-      if (!MO.isDead()) {
-        for (MCSubRegIterator SubRegs(Reg, TRI); SubRegs.isValid(); ++SubRegs) {
-          unsigned SubReg = *SubRegs;
-          if (LocalDefSet.insert(SubReg).second)
-            LocalDefs.push_back(SubReg);
-        }
-      }
-    }
-
-    Defs.clear();
-  }
-
-  SmallSet<unsigned, 32> Added;
-  for (unsigned i = 0, e = LocalDefs.size(); i != e; ++i) {
-    unsigned Reg = LocalDefs[i];
-    if (Added.insert(Reg).second) {
-      // If it's not live beyond end of the bundle, mark it dead.
-      bool isDead = DeadDefSet.count(Reg) || KilledDefSet.count(Reg);
-      MIB.addReg(Reg, getDefRegState(true) | getDeadRegState(isDead) |
-                 getImplRegState(true));
-    }
-  }
-
-  for (unsigned i = 0, e = ExternUses.size(); i != e; ++i) {
-    unsigned Reg = ExternUses[i];
-    bool isKill = KilledUseSet.count(Reg);
-    bool isUndef = UndefUseSet.count(Reg);
-    MIB.addReg(Reg, getKillRegState(isKill) | getUndefRegState(isUndef) |
-               getImplRegState(true));
-  }
-
-  // Set FrameSetup/FrameDestroy for the bundle. If any of the instructions got
-  // the property, then also set it on the bundle.
-  for (auto MII = FirstMI; MII != LastMI; ++MII) {
-    if (MII->getFlag(MachineInstr::FrameSetup))
-      MIB.setMIFlag(MachineInstr::FrameSetup);
-    if (MII->getFlag(MachineInstr::FrameDestroy))
-      MIB.setMIFlag(MachineInstr::FrameDestroy);
-  }
-}
-
-/// finalizeBundle - Same functionality as the previous finalizeBundle except
-/// the last instruction in the bundle is not provided as an input. This is
-/// used in cases where bundles are pre-determined by marking instructions
-/// with 'InsideBundle' marker. It returns the MBB instruction iterator that
-/// points to the end of the bundle.
-MachineBasicBlock::instr_iterator
-llvm::finalizeBundle(MachineBasicBlock &MBB,
-                     MachineBasicBlock::instr_iterator FirstMI) {
-  MachineBasicBlock::instr_iterator E = MBB.instr_end();
-  MachineBasicBlock::instr_iterator LastMI = std::next(FirstMI);
-  while (LastMI != E && LastMI->isInsideBundle())
-    ++LastMI;
-  finalizeBundle(MBB, FirstMI, LastMI);
-  return LastMI;
-}
-
-/// finalizeBundles - Finalize instruction bundles in the specified
-/// MachineFunction. Return true if any bundles are finalized.
-bool llvm::finalizeBundles(MachineFunction &MF) {
-  bool Changed = false;
-  for (MachineFunction::iterator I = MF.begin(), E = MF.end(); I != E; ++I) {
-    MachineBasicBlock &MBB = *I;
-    MachineBasicBlock::instr_iterator MII = MBB.instr_begin();
-    MachineBasicBlock::instr_iterator MIE = MBB.instr_end();
-    if (MII == MIE)
-      continue;
-    assert(!MII->isInsideBundle() &&
-           "First instr cannot be inside bundle before finalization!");
-
-    for (++MII; MII != MIE; ) {
-      if (!MII->isInsideBundle())
-        ++MII;
-      else {
-        MII = finalizeBundle(MBB, std::prev(MII));
-        Changed = true;
-      }
-    }
-  }
-
-  return Changed;
-}
-
-//===----------------------------------------------------------------------===//
-// MachineOperand iterator
-//===----------------------------------------------------------------------===//
-
-MachineOperandIteratorBase::VirtRegInfo
-MachineOperandIteratorBase::analyzeVirtReg(unsigned Reg,
-                    SmallVectorImpl<std::pair<MachineInstr*, unsigned> > *Ops) {
-  VirtRegInfo RI = { false, false, false };
-  for(; isValid(); ++*this) {
-    MachineOperand &MO = deref();
-    if (!MO.isReg() || MO.getReg() != Reg)
-      continue;
-
-    // Remember each (MI, OpNo) that refers to Reg.
-    if (Ops)
-      Ops->push_back(std::make_pair(MO.getParent(), getOperandNo()));
-
-    // Both defs and uses can read virtual registers.
-    if (MO.readsReg()) {
-      RI.Reads = true;
-      if (MO.isDef())
-        RI.Tied = true;
-    }
-
-    // Only defs can write.
-    if (MO.isDef())
-      RI.Writes = true;
-    else if (!RI.Tied && MO.getParent()->isRegTiedToDefOperand(getOperandNo()))
-      RI.Tied = true;
-  }
-  return RI;
-}
-
-MachineOperandIteratorBase::PhysRegInfo
-MachineOperandIteratorBase::analyzePhysReg(unsigned Reg,
-                                           const TargetRegisterInfo *TRI) {
-  bool AllDefsDead = true;
-  PhysRegInfo PRI = {false, false, false, false, false, false, false, false};
-
-  assert(TargetRegisterInfo::isPhysicalRegister(Reg) &&
-         "analyzePhysReg not given a physical register!");
-  for (; isValid(); ++*this) {
-    MachineOperand &MO = deref();
-
-    if (MO.isRegMask() && MO.clobbersPhysReg(Reg)) {
-      PRI.Clobbered = true;
-      continue;
-    }
-
-    if (!MO.isReg())
-      continue;
-
-    unsigned MOReg = MO.getReg();
-    if (!MOReg || !TargetRegisterInfo::isPhysicalRegister(MOReg))
-      continue;
-
-    if (!TRI->regsOverlap(MOReg, Reg))
-      continue;
-
-    bool Covered = TRI->isSuperRegisterEq(Reg, MOReg);
-    if (MO.readsReg()) {
-      PRI.Read = true;
-      if (Covered) {
-        PRI.FullyRead = true;
-        if (MO.isKill())
-          PRI.Killed = true;
-      }
-    } else if (MO.isDef()) {
-      PRI.Defined = true;
-      if (Covered)
-        PRI.FullyDefined = true;
-      if (!MO.isDead())
-        AllDefsDead = false;
-    }
-  }
-
-  if (AllDefsDead) {
-    if (PRI.FullyDefined || PRI.Clobbered)
-      PRI.DeadDef = true;
-    else if (PRI.Defined)
-      PRI.PartialDeadDef = true;
-  }
-
-  return PRI;
-}