Imported Upstream version 5.18.0.207

Former-commit-id: 3b152f462918d427ce18620a2cbe4f8b79650449

external/llvm/lib/CodeGen/TargetSubtargetInfo.cpp

@@ -1,117 +0,0 @@
-//===- TargetSubtargetInfo.cpp - General Target Information ----------------==//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-/// \file This file describes the general parts of a Subtarget.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/CodeGen/TargetSubtargetInfo.h"
-#include "llvm/ADT/Optional.h"
-#include "llvm/CodeGen/MachineInstr.h"
-#include "llvm/CodeGen/TargetInstrInfo.h"
-#include "llvm/CodeGen/TargetSchedule.h"
-#include "llvm/MC/MCInst.h"
-#include "llvm/Support/Format.h"
-#include "llvm/Support/raw_ostream.h"
-#include <string>
-
-using namespace llvm;
-
-TargetSubtargetInfo::TargetSubtargetInfo(
-    const Triple &TT, StringRef CPU, StringRef FS,
-    ArrayRef<SubtargetFeatureKV> PF, ArrayRef<SubtargetFeatureKV> PD,
-    const SubtargetInfoKV *ProcSched, const MCWriteProcResEntry *WPR,
-    const MCWriteLatencyEntry *WL, const MCReadAdvanceEntry *RA,
-    const InstrStage *IS, const unsigned *OC, const unsigned *FP)
-    : MCSubtargetInfo(TT, CPU, FS, PF, PD, ProcSched, WPR, WL, RA, IS, OC, FP) {
-}
-
-TargetSubtargetInfo::~TargetSubtargetInfo() = default;
-
-bool TargetSubtargetInfo::enableAtomicExpand() const {
-  return true;
-}
-
-bool TargetSubtargetInfo::enableIndirectBrExpand() const {
-  return false;
-}
-
-bool TargetSubtargetInfo::enableMachineScheduler() const {
-  return false;
-}
-
-bool TargetSubtargetInfo::enableJoinGlobalCopies() const {
-  return enableMachineScheduler();
-}
-
-bool TargetSubtargetInfo::enableRALocalReassignment(
-    CodeGenOpt::Level OptLevel) const {
-  return true;
-}
-
-bool TargetSubtargetInfo::enableAdvancedRASplitCost() const {
-  return false;
-}
-
-bool TargetSubtargetInfo::enablePostRAScheduler() const {
-  return getSchedModel().PostRAScheduler;
-}
-
-bool TargetSubtargetInfo::useAA() const {
-  return false;
-}
-
-static std::string createSchedInfoStr(unsigned Latency,
-                                     Optional<double> RThroughput) {
-  static const char *SchedPrefix = " sched: [";
-  std::string Comment;
-  raw_string_ostream CS(Comment);
-  if (Latency > 0 && RThroughput.hasValue())
-    CS << SchedPrefix << Latency << format(":%2.2f", RThroughput.getValue())
-       << "]";
-  else if (Latency > 0)
-    CS << SchedPrefix << Latency << ":?]";
-  else if (RThroughput.hasValue())
-    CS << SchedPrefix << "?:" << RThroughput.getValue() << "]";
-  CS.flush();
-  return Comment;
-}
-
-/// Returns string representation of scheduler comment
-std::string TargetSubtargetInfo::getSchedInfoStr(const MachineInstr &MI) const {
-  if (MI.isPseudo() || MI.isTerminator())
-    return std::string();
-  // We don't cache TSchedModel because it depends on TargetInstrInfo
-  // that could be changed during the compilation
-  TargetSchedModel TSchedModel;
-  TSchedModel.init(getSchedModel(), this, getInstrInfo());
-  unsigned Latency = TSchedModel.computeInstrLatency(&MI);
-  Optional<double> RThroughput = TSchedModel.computeInstrRThroughput(&MI);
-  return createSchedInfoStr(Latency, RThroughput);
-}
-
-/// Returns string representation of scheduler comment
-std::string TargetSubtargetInfo::getSchedInfoStr(MCInst const &MCI) const {
-  // We don't cache TSchedModel because it depends on TargetInstrInfo
-  // that could be changed during the compilation
-  TargetSchedModel TSchedModel;
-  TSchedModel.init(getSchedModel(), this, getInstrInfo());
-  unsigned Latency;
-  if (TSchedModel.hasInstrSchedModel())
-    Latency = TSchedModel.computeInstrLatency(MCI.getOpcode());
-  else if (TSchedModel.hasInstrItineraries()) {
-    auto *ItinData = TSchedModel.getInstrItineraries();
-    Latency = ItinData->getStageLatency(
-        getInstrInfo()->get(MCI.getOpcode()).getSchedClass());
-  } else
-    return std::string();
-  Optional<double> RThroughput =
-      TSchedModel.computeInstrRThroughput(MCI.getOpcode());
-  return createSchedInfoStr(Latency, RThroughput);
-}