TargetSubtargetInfo.cpp revision 288943 
1//===-- TargetSubtargetInfo.cpp - General Target Information ---------------==//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// This file describes the general parts of a Subtarget.
11//
12//===----------------------------------------------------------------------===//
13
14#include "llvm/Support/CommandLine.h"
15#include "llvm/ADT/SmallVector.h"
16#include "llvm/Target/TargetSubtargetInfo.h"
17using namespace llvm;
18
19//---------------------------------------------------------------------------
20// TargetSubtargetInfo Class
21//
22TargetSubtargetInfo::TargetSubtargetInfo(
23    const Triple &TT, StringRef CPU, StringRef FS,
24    ArrayRef<SubtargetFeatureKV> PF, ArrayRef<SubtargetFeatureKV> PD,
25    const SubtargetInfoKV *ProcSched, const MCWriteProcResEntry *WPR,
26    const MCWriteLatencyEntry *WL, const MCReadAdvanceEntry *RA,
27    const InstrStage *IS, const unsigned *OC, const unsigned *FP)
28    : MCSubtargetInfo(TT, CPU, FS, PF, PD, ProcSched, WPR, WL, RA, IS, OC, FP) {
29}
30
31TargetSubtargetInfo::~TargetSubtargetInfo() {}
32
33bool TargetSubtargetInfo::enableAtomicExpand() const {
34  return true;
35}
36
37bool TargetSubtargetInfo::enableMachineScheduler() const {
38  return false;
39}
40
41bool TargetSubtargetInfo::enableJoinGlobalCopies() const {
42  return enableMachineScheduler();
43}
44
45bool TargetSubtargetInfo::enableRALocalReassignment(
46    CodeGenOpt::Level OptLevel) const {
47  return true;
48}
49
50bool TargetSubtargetInfo::enablePostRAScheduler() const {
51  return getSchedModel().PostRAScheduler;
52}
53
54bool TargetSubtargetInfo::useAA() const {
55  return false;
56}
57