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 TuneCPU, StringRef FS, 19 ArrayRef<SubtargetFeatureKV> PF, ArrayRef<SubtargetSubTypeKV> PD, 20 const MCWriteProcResEntry *WPR, const MCWriteLatencyEntry *WL, 21 const MCReadAdvanceEntry *RA, const InstrStage *IS, const unsigned *OC, 22 const unsigned *FP) 23 : MCSubtargetInfo(TT, CPU, TuneCPU, FS, PF, PD, WPR, WL, RA, IS, OC, FP) {} 24 25 TargetSubtargetInfo::~TargetSubtargetInfo() = default; 26 27 bool TargetSubtargetInfo::enableAtomicExpand() const { 28 return true; 29 } 30 31 bool TargetSubtargetInfo::enableIndirectBrExpand() const { 32 return false; 33 } 34 35 bool TargetSubtargetInfo::enableMachineScheduler() const { 36 return false; 37 } 38 39 bool TargetSubtargetInfo::enableJoinGlobalCopies() const { 40 return enableMachineScheduler(); 41 } 42 43 bool TargetSubtargetInfo::enableRALocalReassignment( 44 CodeGenOpt::Level OptLevel) const { 45 return true; 46 } 47 48 bool TargetSubtargetInfo::enableAdvancedRASplitCost() const { 49 return false; 50 } 51 52 bool TargetSubtargetInfo::enablePostRAScheduler() const { 53 return getSchedModel().PostRAScheduler; 54 } 55 56 bool TargetSubtargetInfo::enablePostRAMachineScheduler() const { 57 return enableMachineScheduler() && enablePostRAScheduler(); 58 } 59 60 bool TargetSubtargetInfo::useAA() const { 61 return false; 62 } 63 64 void TargetSubtargetInfo::mirFileLoaded(MachineFunction &MF) const { } 65