1 //===- ARCMCTargetDesc.cpp - ARC Target Descriptions ------------*- C++ -*-===//
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 // This file provides ARC specific target descriptions.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #include "ARCMCTargetDesc.h"
14 #include "ARCInstPrinter.h"
15 #include "ARCMCAsmInfo.h"
16 #include "ARCTargetStreamer.h"
17 #include "TargetInfo/ARCTargetInfo.h"
18 #include "llvm/MC/MCDwarf.h"
19 #include "llvm/MC/MCInstrInfo.h"
20 #include "llvm/MC/MCRegisterInfo.h"
21 #include "llvm/MC/MCSubtargetInfo.h"
22 #include "llvm/Support/ErrorHandling.h"
23 #include "llvm/Support/FormattedStream.h"
24 #include "llvm/Support/TargetRegistry.h"
25 
26 using namespace llvm;
27 
28 #define GET_INSTRINFO_MC_DESC
29 #include "ARCGenInstrInfo.inc"
30 
31 #define GET_SUBTARGETINFO_MC_DESC
32 #include "ARCGenSubtargetInfo.inc"
33 
34 #define GET_REGINFO_MC_DESC
35 #include "ARCGenRegisterInfo.inc"
36 
37 static MCInstrInfo *createARCMCInstrInfo() {
38   auto *X = new MCInstrInfo();
39   InitARCMCInstrInfo(X);
40   return X;
41 }
42 
43 static MCRegisterInfo *createARCMCRegisterInfo(const Triple &TT) {
44   auto *X = new MCRegisterInfo();
45   InitARCMCRegisterInfo(X, ARC::BLINK);
46   return X;
47 }
48 
49 static MCSubtargetInfo *createARCMCSubtargetInfo(const Triple &TT,
50                                                  StringRef CPU, StringRef FS) {
51   return createARCMCSubtargetInfoImpl(TT, CPU, FS);
52 }
53 
54 static MCAsmInfo *createARCMCAsmInfo(const MCRegisterInfo &MRI,
55                                      const Triple &TT,
56                                      const MCTargetOptions &Options) {
57   MCAsmInfo *MAI = new ARCMCAsmInfo(TT);
58 
59   // Initial state of the frame pointer is SP.
60   MCCFIInstruction Inst = MCCFIInstruction::cfiDefCfa(nullptr, ARC::SP, 0);
61   MAI->addInitialFrameState(Inst);
62 
63   return MAI;
64 }
65 
66 static MCInstPrinter *createARCMCInstPrinter(const Triple &T,
67                                              unsigned SyntaxVariant,
68                                              const MCAsmInfo &MAI,
69                                              const MCInstrInfo &MII,
70                                              const MCRegisterInfo &MRI) {
71   return new ARCInstPrinter(MAI, MII, MRI);
72 }
73 
74 ARCTargetStreamer::ARCTargetStreamer(MCStreamer &S) : MCTargetStreamer(S) {}
75 ARCTargetStreamer::~ARCTargetStreamer() = default;
76 
77 static MCTargetStreamer *createTargetAsmStreamer(MCStreamer &S,
78                                                  formatted_raw_ostream &OS,
79                                                  MCInstPrinter *InstPrint,
80                                                  bool isVerboseAsm) {
81   return new ARCTargetStreamer(S);
82 }
83 
84 // Force static initialization.
85 extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeARCTargetMC() {
86   // Register the MC asm info.
87   Target &TheARCTarget = getTheARCTarget();
88   RegisterMCAsmInfoFn X(TheARCTarget, createARCMCAsmInfo);
89 
90   // Register the MC instruction info.
91   TargetRegistry::RegisterMCInstrInfo(TheARCTarget, createARCMCInstrInfo);
92 
93   // Register the MC register info.
94   TargetRegistry::RegisterMCRegInfo(TheARCTarget, createARCMCRegisterInfo);
95 
96   // Register the MC subtarget info.
97   TargetRegistry::RegisterMCSubtargetInfo(TheARCTarget,
98                                           createARCMCSubtargetInfo);
99 
100   // Register the MCInstPrinter
101   TargetRegistry::RegisterMCInstPrinter(TheARCTarget, createARCMCInstPrinter);
102 
103   TargetRegistry::RegisterAsmTargetStreamer(TheARCTarget,
104                                             createTargetAsmStreamer);
105 }
106