lib/CodeGen/TargetSubtargetInfo.cpp

   1 //===- TargetSubtargetInfo.cpp - General Target Information ----------------==//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 /// \file This file describes the general parts of a Subtarget.
  10 //
  11 //===----------------------------------------------------------------------===//
  12
  13 #include "llvm/CodeGen/TargetSubtargetInfo.h"
  14
  15 using namespace llvm;
  16
  17 TargetSubtargetInfo::TargetSubtargetInfo(
  18     const Triple &TT, StringRef CPU, StringRef FS,
  19     ArrayRef<SubtargetFeatureKV> PF, ArrayRef<SubtargetSubTypeKV> PD,
  20     const MCWriteProcResEntry *WPR,
  21     const MCWriteLatencyEntry *WL, const MCReadAdvanceEntry *RA,
  22     const InstrStage *IS, const unsigned *OC, const unsigned *FP)
  23     : MCSubtargetInfo(TT, CPU, FS, PF, PD, WPR, WL, RA, IS, OC, FP) {
  24 }
  25
  26 TargetSubtargetInfo::~TargetSubtargetInfo() = default;
  27
  28 bool TargetSubtargetInfo::enableAtomicExpand() const {
  29   return true;
  30 }
  31
  32 bool TargetSubtargetInfo::enableIndirectBrExpand() const {
  33   return false;
  34 }
  35
  36 bool TargetSubtargetInfo::enableMachineScheduler() const {
  37   return false;
  38 }
  39
  40 bool TargetSubtargetInfo::enableJoinGlobalCopies() const {
  41   return enableMachineScheduler();
  42 }
  43
  44 bool TargetSubtargetInfo::enableRALocalReassignment(
  45     CodeGenOpt::Level OptLevel) const {
  46   return true;
  47 }
  48
  49 bool TargetSubtargetInfo::enableAdvancedRASplitCost() const {
  50   return false;
  51 }
  52
  53 bool TargetSubtargetInfo::enablePostRAScheduler() const {
  54   return getSchedModel().PostRAScheduler;
  55 }
  56
  57 bool TargetSubtargetInfo::useAA() const {
  58   return false;
  59 }
  60
  61 void TargetSubtargetInfo::mirFileLoaded(MachineFunction &MF) const { }