xref: /freebsd/contrib/llvm-project/llvm/lib/CodeGen/TargetSubtargetInfo.cpp (revision 2f513db72b034fd5ef7f080b11be5c711c15186a)
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 { }
62