1 //===-- SparcMCTargetDesc.cpp - Sparc Target Descriptions -----------------===//
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 Sparc specific target descriptions.
10 //
11 //===----------------------------------------------------------------------===//
12
13 #include "SparcMCTargetDesc.h"
14 #include "SparcInstPrinter.h"
15 #include "SparcMCAsmInfo.h"
16 #include "SparcTargetStreamer.h"
17 #include "TargetInfo/SparcTargetInfo.h"
18 #include "llvm/MC/MCInstrInfo.h"
19 #include "llvm/MC/MCRegisterInfo.h"
20 #include "llvm/MC/MCSubtargetInfo.h"
21 #include "llvm/Support/ErrorHandling.h"
22 #include "llvm/Support/TargetRegistry.h"
23
24 using namespace llvm;
25
26 #define GET_INSTRINFO_MC_DESC
27 #include "SparcGenInstrInfo.inc"
28
29 #define GET_SUBTARGETINFO_MC_DESC
30 #include "SparcGenSubtargetInfo.inc"
31
32 #define GET_REGINFO_MC_DESC
33 #include "SparcGenRegisterInfo.inc"
34
createSparcMCAsmInfo(const MCRegisterInfo & MRI,const Triple & TT,const MCTargetOptions & Options)35 static MCAsmInfo *createSparcMCAsmInfo(const MCRegisterInfo &MRI,
36 const Triple &TT,
37 const MCTargetOptions &Options) {
38 MCAsmInfo *MAI = new SparcELFMCAsmInfo(TT);
39 unsigned Reg = MRI.getDwarfRegNum(SP::O6, true);
40 MCCFIInstruction Inst = MCCFIInstruction::cfiDefCfa(nullptr, Reg, 0);
41 MAI->addInitialFrameState(Inst);
42 return MAI;
43 }
44
createSparcV9MCAsmInfo(const MCRegisterInfo & MRI,const Triple & TT,const MCTargetOptions & Options)45 static MCAsmInfo *createSparcV9MCAsmInfo(const MCRegisterInfo &MRI,
46 const Triple &TT,
47 const MCTargetOptions &Options) {
48 MCAsmInfo *MAI = new SparcELFMCAsmInfo(TT);
49 unsigned Reg = MRI.getDwarfRegNum(SP::O6, true);
50 MCCFIInstruction Inst = MCCFIInstruction::cfiDefCfa(nullptr, Reg, 2047);
51 MAI->addInitialFrameState(Inst);
52 return MAI;
53 }
54
createSparcMCInstrInfo()55 static MCInstrInfo *createSparcMCInstrInfo() {
56 MCInstrInfo *X = new MCInstrInfo();
57 InitSparcMCInstrInfo(X);
58 return X;
59 }
60
createSparcMCRegisterInfo(const Triple & TT)61 static MCRegisterInfo *createSparcMCRegisterInfo(const Triple &TT) {
62 MCRegisterInfo *X = new MCRegisterInfo();
63 InitSparcMCRegisterInfo(X, SP::O7);
64 return X;
65 }
66
67 static MCSubtargetInfo *
createSparcMCSubtargetInfo(const Triple & TT,StringRef CPU,StringRef FS)68 createSparcMCSubtargetInfo(const Triple &TT, StringRef CPU, StringRef FS) {
69 if (CPU.empty())
70 CPU = (TT.getArch() == Triple::sparcv9) ? "v9" : "v8";
71 return createSparcMCSubtargetInfoImpl(TT, CPU, /*TuneCPU*/ CPU, FS);
72 }
73
74 static MCTargetStreamer *
createObjectTargetStreamer(MCStreamer & S,const MCSubtargetInfo & STI)75 createObjectTargetStreamer(MCStreamer &S, const MCSubtargetInfo &STI) {
76 return new SparcTargetELFStreamer(S);
77 }
78
createTargetAsmStreamer(MCStreamer & S,formatted_raw_ostream & OS,MCInstPrinter * InstPrint,bool isVerboseAsm)79 static MCTargetStreamer *createTargetAsmStreamer(MCStreamer &S,
80 formatted_raw_ostream &OS,
81 MCInstPrinter *InstPrint,
82 bool isVerboseAsm) {
83 return new SparcTargetAsmStreamer(S, OS);
84 }
85
createSparcMCInstPrinter(const Triple & T,unsigned SyntaxVariant,const MCAsmInfo & MAI,const MCInstrInfo & MII,const MCRegisterInfo & MRI)86 static MCInstPrinter *createSparcMCInstPrinter(const Triple &T,
87 unsigned SyntaxVariant,
88 const MCAsmInfo &MAI,
89 const MCInstrInfo &MII,
90 const MCRegisterInfo &MRI) {
91 return new SparcInstPrinter(MAI, MII, MRI);
92 }
93
LLVMInitializeSparcTargetMC()94 extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeSparcTargetMC() {
95 // Register the MC asm info.
96 RegisterMCAsmInfoFn X(getTheSparcTarget(), createSparcMCAsmInfo);
97 RegisterMCAsmInfoFn Y(getTheSparcV9Target(), createSparcV9MCAsmInfo);
98 RegisterMCAsmInfoFn Z(getTheSparcelTarget(), createSparcMCAsmInfo);
99
100 for (Target *T :
101 {&getTheSparcTarget(), &getTheSparcV9Target(), &getTheSparcelTarget()}) {
102 // Register the MC instruction info.
103 TargetRegistry::RegisterMCInstrInfo(*T, createSparcMCInstrInfo);
104
105 // Register the MC register info.
106 TargetRegistry::RegisterMCRegInfo(*T, createSparcMCRegisterInfo);
107
108 // Register the MC subtarget info.
109 TargetRegistry::RegisterMCSubtargetInfo(*T, createSparcMCSubtargetInfo);
110
111 // Register the MC Code Emitter.
112 TargetRegistry::RegisterMCCodeEmitter(*T, createSparcMCCodeEmitter);
113
114 // Register the asm backend.
115 TargetRegistry::RegisterMCAsmBackend(*T, createSparcAsmBackend);
116
117 // Register the object target streamer.
118 TargetRegistry::RegisterObjectTargetStreamer(*T,
119 createObjectTargetStreamer);
120
121 // Register the asm streamer.
122 TargetRegistry::RegisterAsmTargetStreamer(*T, createTargetAsmStreamer);
123
124 // Register the MCInstPrinter
125 TargetRegistry::RegisterMCInstPrinter(*T, createSparcMCInstPrinter);
126 }
127 }
128