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