aboutsummaryrefslogtreecommitdiff
path: root/llvm/lib/Target/XCore/MCTargetDesc/XCoreMCTargetDesc.cpp
blob: a782ff436dc09ee83b6d0687d0b501abde877eff (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
//===-- XCoreMCTargetDesc.cpp - XCore Target Descriptions -----------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file provides XCore specific target descriptions.
//
//===----------------------------------------------------------------------===//

#include "MCTargetDesc/XCoreMCTargetDesc.h"
#include "MCTargetDesc/XCoreInstPrinter.h"
#include "MCTargetDesc/XCoreMCAsmInfo.h"
#include "TargetInfo/XCoreTargetInfo.h"
#include "XCoreTargetStreamer.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/MC/MCDwarf.h"
#include "llvm/MC/MCInstrInfo.h"
#include "llvm/MC/MCRegisterInfo.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/MC/TargetRegistry.h"
#include "llvm/Support/CodeGen.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/FormattedStream.h"
#include "llvm/Support/raw_ostream.h"

using namespace llvm;

#define GET_INSTRINFO_MC_DESC
#define ENABLE_INSTR_PREDICATE_VERIFIER
#include "XCoreGenInstrInfo.inc"

#define GET_SUBTARGETINFO_MC_DESC
#include "XCoreGenSubtargetInfo.inc"

#define GET_REGINFO_MC_DESC
#include "XCoreGenRegisterInfo.inc"

static MCInstrInfo *createXCoreMCInstrInfo() {
  MCInstrInfo *X = new MCInstrInfo();
  InitXCoreMCInstrInfo(X);
  return X;
}

static MCRegisterInfo *createXCoreMCRegisterInfo(const Triple &TT) {
  MCRegisterInfo *X = new MCRegisterInfo();
  InitXCoreMCRegisterInfo(X, XCore::LR);
  return X;
}

static MCSubtargetInfo *
createXCoreMCSubtargetInfo(const Triple &TT, StringRef CPU, StringRef FS) {
  return createXCoreMCSubtargetInfoImpl(TT, CPU, /*TuneCPU*/ CPU, FS);
}

static MCAsmInfo *createXCoreMCAsmInfo(const MCRegisterInfo &MRI,
                                       const Triple &TT,
                                       const MCTargetOptions &Options) {
  MCAsmInfo *MAI = new XCoreMCAsmInfo(TT);

  // Initial state of the frame pointer is SP.
  MCCFIInstruction Inst = MCCFIInstruction::cfiDefCfa(nullptr, XCore::SP, 0);
  MAI->addInitialFrameState(Inst);

  return MAI;
}

static MCInstPrinter *createXCoreMCInstPrinter(const Triple &T,
                                               unsigned SyntaxVariant,
                                               const MCAsmInfo &MAI,
                                               const MCInstrInfo &MII,
                                               const MCRegisterInfo &MRI) {
  return new XCoreInstPrinter(MAI, MII, MRI);
}

XCoreTargetStreamer::XCoreTargetStreamer(MCStreamer &S) : MCTargetStreamer(S) {}

XCoreTargetStreamer::~XCoreTargetStreamer() = default;

namespace {

class XCoreTargetAsmStreamer : public XCoreTargetStreamer {
  formatted_raw_ostream &OS;

public:
  XCoreTargetAsmStreamer(MCStreamer &S, formatted_raw_ostream &OS);

  void emitCCTopData(StringRef Name) override;
  void emitCCTopFunction(StringRef Name) override;
  void emitCCBottomData(StringRef Name) override;
  void emitCCBottomFunction(StringRef Name) override;
};

} // end anonymous namespace

XCoreTargetAsmStreamer::XCoreTargetAsmStreamer(MCStreamer &S,
                                               formatted_raw_ostream &OS)
    : XCoreTargetStreamer(S), OS(OS) {}

void XCoreTargetAsmStreamer::emitCCTopData(StringRef Name) {
  OS << "\t.cc_top " << Name << ".data," << Name << '\n';
}

void XCoreTargetAsmStreamer::emitCCTopFunction(StringRef Name) {
  OS << "\t.cc_top " << Name << ".function," << Name << '\n';
}

void XCoreTargetAsmStreamer::emitCCBottomData(StringRef Name) {
  OS << "\t.cc_bottom " << Name << ".data\n";
}

void XCoreTargetAsmStreamer::emitCCBottomFunction(StringRef Name) {
  OS << "\t.cc_bottom " << Name << ".function\n";
}

static MCTargetStreamer *createTargetAsmStreamer(MCStreamer &S,
                                                 formatted_raw_ostream &OS,
                                                 MCInstPrinter *InstPrint,
                                                 bool isVerboseAsm) {
  return new XCoreTargetAsmStreamer(S, OS);
}

// Force static initialization.
extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeXCoreTargetMC() {
  // Register the MC asm info.
  RegisterMCAsmInfoFn X(getTheXCoreTarget(), createXCoreMCAsmInfo);

  // Register the MC instruction info.
  TargetRegistry::RegisterMCInstrInfo(getTheXCoreTarget(),
                                      createXCoreMCInstrInfo);

  // Register the MC register info.
  TargetRegistry::RegisterMCRegInfo(getTheXCoreTarget(),
                                    createXCoreMCRegisterInfo);

  // Register the MC subtarget info.
  TargetRegistry::RegisterMCSubtargetInfo(getTheXCoreTarget(),
                                          createXCoreMCSubtargetInfo);

  // Register the MCInstPrinter
  TargetRegistry::RegisterMCInstPrinter(getTheXCoreTarget(),
                                        createXCoreMCInstPrinter);

  TargetRegistry::RegisterAsmTargetStreamer(getTheXCoreTarget(),
                                            createTargetAsmStreamer);
}