1 files changed, 0 insertions, 481 deletions
diff --git a/contrib/llvm/lib/Target/Mips/MipsCodeEmitter.cpp b/contrib/llvm/lib/Target/Mips/MipsCodeEmitter.cpp
deleted file mode 100644
index 794c718..0000000
--- a/contrib/llvm/lib/Target/Mips/MipsCodeEmitter.cpp
+++ /dev/null
@@ -1,481 +0,0 @@
-//===-- Mips/MipsCodeEmitter.cpp - Convert Mips Code to Machine Code ------===//
-//
-//                     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 pass that transforms the Mips machine instructions
-// into relocatable machine code.
-//
-//===---------------------------------------------------------------------===//
-
-#include "Mips.h"
-#include "MCTargetDesc/MipsBaseInfo.h"
-#include "MipsInstrInfo.h"
-#include "MipsRelocations.h"
-#include "MipsSubtarget.h"
-#include "MipsTargetMachine.h"
-#include "llvm/ADT/Statistic.h"
-#include "llvm/CodeGen/JITCodeEmitter.h"
-#include "llvm/CodeGen/MachineConstantPool.h"
-#include "llvm/CodeGen/MachineFunctionPass.h"
-#include "llvm/CodeGen/MachineInstr.h"
-#include "llvm/CodeGen/MachineInstrBuilder.h"
-#include "llvm/CodeGen/MachineJumpTableInfo.h"
-#include "llvm/CodeGen/MachineModuleInfo.h"
-#include "llvm/CodeGen/MachineOperand.h"
-#include "llvm/CodeGen/Passes.h"
-#include "llvm/IR/Constants.h"
-#include "llvm/IR/DerivedTypes.h"
-#include "llvm/PassManager.h"
-#include "llvm/Support/Debug.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/raw_ostream.h"
-#ifndef NDEBUG
-#include <iomanip>
-#endif
-
-using namespace llvm;
-
-#define DEBUG_TYPE "jit"
-
-STATISTIC(NumEmitted, "Number of machine instructions emitted");
-
-namespace {
-
-class MipsCodeEmitter : public MachineFunctionPass {
-  MipsJITInfo *JTI;
-  const MipsInstrInfo *II;
-  const DataLayout *TD;
-  const MipsSubtarget *Subtarget;
-  TargetMachine &TM;
-  JITCodeEmitter &MCE;
-  const std::vector<MachineConstantPoolEntry> *MCPEs;
-  const std::vector<MachineJumpTableEntry> *MJTEs;
-  bool IsPIC;
-
-  void getAnalysisUsage(AnalysisUsage &AU) const override {
-    AU.addRequired<MachineModuleInfo> ();
-    MachineFunctionPass::getAnalysisUsage(AU);
-  }
-
-  static char ID;
-
-public:
-  MipsCodeEmitter(TargetMachine &tm, JITCodeEmitter &mce)
-    : MachineFunctionPass(ID), JTI(nullptr), II(nullptr), TD(nullptr),
-      TM(tm), MCE(mce), MCPEs(nullptr), MJTEs(nullptr),
-      IsPIC(TM.getRelocationModel() == Reloc::PIC_) {}
-
-  bool runOnMachineFunction(MachineFunction &MF) override;
-
-  const char *getPassName() const override {
-    return "Mips Machine Code Emitter";
-  }
-
-  /// getBinaryCodeForInstr - This function, generated by the
-  /// CodeEmitterGenerator using TableGen, produces the binary encoding for
-  /// machine instructions.
-  uint64_t getBinaryCodeForInstr(const MachineInstr &MI) const;
-
-  void emitInstruction(MachineBasicBlock::instr_iterator MI,
-                       MachineBasicBlock &MBB);
-
-private:
-
-  void emitWord(unsigned Word);
-
-  /// Routines that handle operands which add machine relocations which are
-  /// fixed up by the relocation stage.
-  void emitGlobalAddress(const GlobalValue *GV, unsigned Reloc,
-                         bool MayNeedFarStub) const;
-  void emitExternalSymbolAddress(const char *ES, unsigned Reloc) const;
-  void emitConstPoolAddress(unsigned CPI, unsigned Reloc) const;
-  void emitJumpTableAddress(unsigned JTIndex, unsigned Reloc) const;
-  void emitMachineBasicBlock(MachineBasicBlock *BB, unsigned Reloc) const;
-
-  /// getMachineOpValue - Return binary encoding of operand. If the machine
-  /// operand requires relocation, record the relocation and return zero.
-  unsigned getMachineOpValue(const MachineInstr &MI,
-                             const MachineOperand &MO) const;
-
-  unsigned getRelocation(const MachineInstr &MI,
-                         const MachineOperand &MO) const;
-
-  unsigned getJumpTargetOpValue(const MachineInstr &MI, unsigned OpNo) const;
-  unsigned getJumpTargetOpValueMM(const MachineInstr &MI, unsigned OpNo) const;
-  unsigned getBranchTargetOpValueMM(const MachineInstr &MI,
-                                    unsigned OpNo) const;
-
-  unsigned getBranchTarget21OpValue(const MachineInstr &MI,
-                                    unsigned OpNo) const;
-  unsigned getBranchTarget26OpValue(const MachineInstr &MI,
-                                    unsigned OpNo) const;
-  unsigned getJumpOffset16OpValue(const MachineInstr &MI, unsigned OpNo) const;
-
-  unsigned getBranchTargetOpValue(const MachineInstr &MI, unsigned OpNo) const;
-  unsigned getMemEncoding(const MachineInstr &MI, unsigned OpNo) const;
-  unsigned getMemEncodingMMImm12(const MachineInstr &MI, unsigned OpNo) const;
-  unsigned getMSAMemEncoding(const MachineInstr &MI, unsigned OpNo) const;
-  unsigned getSizeExtEncoding(const MachineInstr &MI, unsigned OpNo) const;
-  unsigned getSizeInsEncoding(const MachineInstr &MI, unsigned OpNo) const;
-  unsigned getLSAImmEncoding(const MachineInstr &MI, unsigned OpNo) const;
-  unsigned getSimm19Lsl2Encoding(const MachineInstr &MI, unsigned OpNo) const;
-  unsigned getSimm18Lsl3Encoding(const MachineInstr &MI, unsigned OpNo) const;
-
-  /// Expand pseudo instructions with accumulator register operands.
-  void expandACCInstr(MachineBasicBlock::instr_iterator MI,
-                      MachineBasicBlock &MBB, unsigned Opc) const;
-
-  void expandPseudoIndirectBranch(MachineBasicBlock::instr_iterator MI,
-                                  MachineBasicBlock &MBB) const;
-
-  /// \brief Expand pseudo instruction. Return true if MI was expanded.
-  bool expandPseudos(MachineBasicBlock::instr_iterator &MI,
-                     MachineBasicBlock &MBB) const;
-};
-}
-
-char MipsCodeEmitter::ID = 0;
-
-bool MipsCodeEmitter::runOnMachineFunction(MachineFunction &MF) {
-  MipsTargetMachine &Target = static_cast<MipsTargetMachine &>(
-                                const_cast<TargetMachine &>(MF.getTarget()));
-
-  JTI = Target.getJITInfo();
-  II = Target.getInstrInfo();
-  TD = Target.getDataLayout();
-  Subtarget = &TM.getSubtarget<MipsSubtarget> ();
-  MCPEs = &MF.getConstantPool()->getConstants();
-  MJTEs = nullptr;
-  if (MF.getJumpTableInfo()) MJTEs = &MF.getJumpTableInfo()->getJumpTables();
-  JTI->Initialize(MF, IsPIC, Subtarget->isLittle());
-  MCE.setModuleInfo(&getAnalysis<MachineModuleInfo> ());
-
-  do {
-    DEBUG(errs() << "JITTing function '"
-        << MF.getName() << "'\n");
-    MCE.startFunction(MF);
-
-    for (MachineFunction::iterator MBB = MF.begin(), E = MF.end();
-        MBB != E; ++MBB){
-      MCE.StartMachineBasicBlock(MBB);
-      for (MachineBasicBlock::instr_iterator I = MBB->instr_begin(),
-           E = MBB->instr_end(); I != E;)
-        emitInstruction(*I++, *MBB);
-    }
-  } while (MCE.finishFunction(MF));
-
-  return false;
-}
-
-unsigned MipsCodeEmitter::getRelocation(const MachineInstr &MI,
-                                        const MachineOperand &MO) const {
-  // NOTE: This relocations are for static.
-  uint64_t TSFlags = MI.getDesc().TSFlags;
-  uint64_t Form = TSFlags & MipsII::FormMask;
-  if (Form == MipsII::FrmJ)
-    return Mips::reloc_mips_26;
-  if ((Form == MipsII::FrmI || Form == MipsII::FrmFI)
-       && MI.isBranch())
-    return Mips::reloc_mips_pc16;
-  if (Form == MipsII::FrmI && MI.getOpcode() == Mips::LUi)
-    return Mips::reloc_mips_hi;
-  return Mips::reloc_mips_lo;
-}
-
-unsigned MipsCodeEmitter::getJumpTargetOpValue(const MachineInstr &MI,
-                                               unsigned OpNo) const {
-  MachineOperand MO = MI.getOperand(OpNo);
-  if (MO.isGlobal())
-    emitGlobalAddress(MO.getGlobal(), getRelocation(MI, MO), true);
-  else if (MO.isSymbol())
-    emitExternalSymbolAddress(MO.getSymbolName(), getRelocation(MI, MO));
-  else if (MO.isMBB())
-    emitMachineBasicBlock(MO.getMBB(), getRelocation(MI, MO));
-  else
-    llvm_unreachable("Unexpected jump target operand kind.");
-  return 0;
-}
-
-unsigned MipsCodeEmitter::getJumpTargetOpValueMM(const MachineInstr &MI,
-                                                 unsigned OpNo) const {
-  llvm_unreachable("Unimplemented function.");
-  return 0;
-}
-
-unsigned MipsCodeEmitter::getBranchTargetOpValueMM(const MachineInstr &MI,
-                                                   unsigned OpNo) const {
-  llvm_unreachable("Unimplemented function.");
-  return 0;
-}
-
-unsigned MipsCodeEmitter::getBranchTarget21OpValue(const MachineInstr &MI,
-                                                   unsigned OpNo) const {
-  llvm_unreachable("Unimplemented function.");
-  return 0;
-}
-
-unsigned MipsCodeEmitter::getBranchTarget26OpValue(const MachineInstr &MI,
-                                                   unsigned OpNo) const {
-  llvm_unreachable("Unimplemented function.");
-  return 0;
-}
-
-unsigned MipsCodeEmitter::getJumpOffset16OpValue(const MachineInstr &MI,
-                                                 unsigned OpNo) const {
-  llvm_unreachable("Unimplemented function.");
-  return 0;
-}
-
-unsigned MipsCodeEmitter::getBranchTargetOpValue(const MachineInstr &MI,
-                                                 unsigned OpNo) const {
-  MachineOperand MO = MI.getOperand(OpNo);
-  emitMachineBasicBlock(MO.getMBB(), getRelocation(MI, MO));
-  return 0;
-}
-
-unsigned MipsCodeEmitter::getMemEncoding(const MachineInstr &MI,
-                                         unsigned OpNo) const {
-  // Base register is encoded in bits 20-16, offset is encoded in bits 15-0.
-  assert(MI.getOperand(OpNo).isReg());
-  unsigned RegBits = getMachineOpValue(MI, MI.getOperand(OpNo)) << 16;
-  return (getMachineOpValue(MI, MI.getOperand(OpNo+1)) & 0xFFFF) | RegBits;
-}
-
-unsigned MipsCodeEmitter::getMemEncodingMMImm12(const MachineInstr &MI,
-                                                unsigned OpNo) const {
-  llvm_unreachable("Unimplemented function.");
-  return 0;
-}
-
-unsigned MipsCodeEmitter::getMSAMemEncoding(const MachineInstr &MI,
-                                            unsigned OpNo) const {
-  llvm_unreachable("Unimplemented function.");
-  return 0;
-}
-
-unsigned MipsCodeEmitter::getSizeExtEncoding(const MachineInstr &MI,
-                                             unsigned OpNo) const {
-  // size is encoded as size-1.
-  return getMachineOpValue(MI, MI.getOperand(OpNo)) - 1;
-}
-
-unsigned MipsCodeEmitter::getSizeInsEncoding(const MachineInstr &MI,
-                                             unsigned OpNo) const {
-  // size is encoded as pos+size-1.
-  return getMachineOpValue(MI, MI.getOperand(OpNo-1)) +
-         getMachineOpValue(MI, MI.getOperand(OpNo)) - 1;
-}
-
-unsigned MipsCodeEmitter::getLSAImmEncoding(const MachineInstr &MI,
-                                            unsigned OpNo) const {
-  llvm_unreachable("Unimplemented function.");
-  return 0;
-}
-
-unsigned MipsCodeEmitter::getSimm18Lsl3Encoding(const MachineInstr &MI,
-                                                unsigned OpNo) const {
-  llvm_unreachable("Unimplemented function.");
-  return 0;
-}
-
-unsigned MipsCodeEmitter::getSimm19Lsl2Encoding(const MachineInstr &MI,
-                                                unsigned OpNo) const {
-  llvm_unreachable("Unimplemented function.");
-  return 0;
-}
-
-/// getMachineOpValue - Return binary encoding of operand. If the machine
-/// operand requires relocation, record the relocation and return zero.
-unsigned MipsCodeEmitter::getMachineOpValue(const MachineInstr &MI,
-                                            const MachineOperand &MO) const {
-  if (MO.isReg())
-    return TM.getRegisterInfo()->getEncodingValue(MO.getReg());
-  else if (MO.isImm())
-    return static_cast<unsigned>(MO.getImm());
-  else if (MO.isGlobal())
-    emitGlobalAddress(MO.getGlobal(), getRelocation(MI, MO), true);
-  else if (MO.isSymbol())
-    emitExternalSymbolAddress(MO.getSymbolName(), getRelocation(MI, MO));
-  else if (MO.isCPI())
-    emitConstPoolAddress(MO.getIndex(), getRelocation(MI, MO));
-  else if (MO.isJTI())
-    emitJumpTableAddress(MO.getIndex(), getRelocation(MI, MO));
-  else if (MO.isMBB())
-    emitMachineBasicBlock(MO.getMBB(), getRelocation(MI, MO));
-  else
-    llvm_unreachable("Unable to encode MachineOperand!");
-  return 0;
-}
-
-void MipsCodeEmitter::emitGlobalAddress(const GlobalValue *GV, unsigned Reloc,
-                                        bool MayNeedFarStub) const {
-  MCE.addRelocation(MachineRelocation::getGV(MCE.getCurrentPCOffset(), Reloc,
-                                             const_cast<GlobalValue *>(GV), 0,
-                                             MayNeedFarStub));
-}
-
-void MipsCodeEmitter::
-emitExternalSymbolAddress(const char *ES, unsigned Reloc) const {
-  MCE.addRelocation(MachineRelocation::getExtSym(MCE.getCurrentPCOffset(),
-                                                 Reloc, ES, 0, 0));
-}
-
-void MipsCodeEmitter::emitConstPoolAddress(unsigned CPI, unsigned Reloc) const {
-  MCE.addRelocation(MachineRelocation::getConstPool(MCE.getCurrentPCOffset(),
-                                                    Reloc, CPI, 0, false));
-}
-
-void MipsCodeEmitter::
-emitJumpTableAddress(unsigned JTIndex, unsigned Reloc) const {
-  MCE.addRelocation(MachineRelocation::getJumpTable(MCE.getCurrentPCOffset(),
-                                                    Reloc, JTIndex, 0, false));
-}
-
-void MipsCodeEmitter::emitMachineBasicBlock(MachineBasicBlock *BB,
-                                            unsigned Reloc) const {
-  MCE.addRelocation(MachineRelocation::getBB(MCE.getCurrentPCOffset(),
-                                             Reloc, BB));
-}
-
-void MipsCodeEmitter::emitInstruction(MachineBasicBlock::instr_iterator MI,
-                                      MachineBasicBlock &MBB) {
-  DEBUG(errs() << "JIT: " << (void*)MCE.getCurrentPCValue() << ":\t" << *MI);
-
-  // Expand pseudo instruction. Skip if MI was not expanded.
-  if (((MI->getDesc().TSFlags & MipsII::FormMask) == MipsII::Pseudo) &&
-      !expandPseudos(MI, MBB))
-    return;
-
-  MCE.processDebugLoc(MI->getDebugLoc(), true);
-
-  emitWord(getBinaryCodeForInstr(*MI));
-  ++NumEmitted;  // Keep track of the # of mi's emitted
-
-  MCE.processDebugLoc(MI->getDebugLoc(), false);
-}
-
-void MipsCodeEmitter::emitWord(unsigned Word) {
-  DEBUG(errs() << "  0x";
-        errs().write_hex(Word) << "\n");
-  if (Subtarget->isLittle())
-    MCE.emitWordLE(Word);
-  else
-    MCE.emitWordBE(Word);
-}
-
-void MipsCodeEmitter::expandACCInstr(MachineBasicBlock::instr_iterator MI,
-                                     MachineBasicBlock &MBB,
-                                     unsigned Opc) const {
-  // Expand "pseudomult $ac0, $t0, $t1" to "mult $t0, $t1".
-  BuildMI(MBB, &*MI, MI->getDebugLoc(), II->get(Opc))
-    .addReg(MI->getOperand(1).getReg()).addReg(MI->getOperand(2).getReg());
-}
-
-void MipsCodeEmitter::expandPseudoIndirectBranch(
-    MachineBasicBlock::instr_iterator MI, MachineBasicBlock &MBB) const {
-  // This logic is duplicated from MipsAsmPrinter::emitPseudoIndirectBranch()
-  bool HasLinkReg = false;
-  unsigned Opcode = 0;
-
-  if (Subtarget->hasMips64r6()) {
-    // MIPS64r6 should use (JALR64 ZERO_64, $rs)
-    Opcode = Mips::JALR64;
-    HasLinkReg = true;
-  } else if (Subtarget->hasMips32r6()) {
-    // MIPS32r6 should use (JALR ZERO, $rs)
-    Opcode = Mips::JALR;
-    HasLinkReg = true;
-  } else if (Subtarget->inMicroMipsMode())
-    // microMIPS should use (JR_MM $rs)
-    Opcode = Mips::JR_MM;
-  else {
-    // Everything else should use (JR $rs)
-    Opcode = Mips::JR;
-  }
-
-  auto MIB = BuildMI(MBB, &*MI, MI->getDebugLoc(), II->get(Opcode));
-
-  if (HasLinkReg) {
-    unsigned ZeroReg = Subtarget->isGP64bit() ? Mips::ZERO_64 : Mips::ZERO;
-    MIB.addReg(ZeroReg);
-  }
-
-  MIB.addReg(MI->getOperand(0).getReg());
-}
-
-bool MipsCodeEmitter::expandPseudos(MachineBasicBlock::instr_iterator &MI,
-                                    MachineBasicBlock &MBB) const {
-  switch (MI->getOpcode()) {
-  default:
-    llvm_unreachable("Unhandled pseudo");
-    return false;
-  case Mips::NOP:
-    BuildMI(MBB, &*MI, MI->getDebugLoc(), II->get(Mips::SLL), Mips::ZERO)
-      .addReg(Mips::ZERO).addImm(0);
-    break;
-  case Mips::B:
-    BuildMI(MBB, &*MI, MI->getDebugLoc(), II->get(Mips::BEQ)).addReg(Mips::ZERO)
-      .addReg(Mips::ZERO).addOperand(MI->getOperand(0));
-    break;
-  case Mips::TRAP:
-    BuildMI(MBB, &*MI, MI->getDebugLoc(), II->get(Mips::BREAK)).addImm(0)
-      .addImm(0);
-    break;
-  case Mips::JALRPseudo:
-    BuildMI(MBB, &*MI, MI->getDebugLoc(), II->get(Mips::JALR), Mips::RA)
-      .addReg(MI->getOperand(0).getReg());
-    break;
-  case Mips::PseudoMULT:
-    expandACCInstr(MI, MBB, Mips::MULT);
-    break;
-  case Mips::PseudoMULTu:
-    expandACCInstr(MI, MBB, Mips::MULTu);
-    break;
-  case Mips::PseudoSDIV:
-    expandACCInstr(MI, MBB, Mips::SDIV);
-    break;
-  case Mips::PseudoUDIV:
-    expandACCInstr(MI, MBB, Mips::UDIV);
-    break;
-  case Mips::PseudoMADD:
-    expandACCInstr(MI, MBB, Mips::MADD);
-    break;
-  case Mips::PseudoMADDU:
-    expandACCInstr(MI, MBB, Mips::MADDU);
-    break;
-  case Mips::PseudoMSUB:
-    expandACCInstr(MI, MBB, Mips::MSUB);
-    break;
-  case Mips::PseudoMSUBU:
-    expandACCInstr(MI, MBB, Mips::MSUBU);
-    break;
-  case Mips::PseudoReturn:
-  case Mips::PseudoReturn64:
-  case Mips::PseudoIndirectBranch:
-  case Mips::PseudoIndirectBranch64:
-      expandPseudoIndirectBranch(MI, MBB);
-      break;
-  case TargetOpcode::CFI_INSTRUCTION:
-  case TargetOpcode::IMPLICIT_DEF:
-  case TargetOpcode::KILL:
-      // Do nothing
-      return false;
-  }
-
-  (MI--)->eraseFromBundle();
-  return true;
-}
-
-/// createMipsJITCodeEmitterPass - Return a pass that emits the collected Mips
-/// code to the specified MCE object.
-FunctionPass *llvm::createMipsJITCodeEmitterPass(MipsTargetMachine &TM,
-                                                 JITCodeEmitter &JCE) {
-  return new MipsCodeEmitter(TM, JCE);
-}
-
-#include "MipsGenCodeEmitter.inc"