1 //===-- XCoreMCTargetDesc.cpp - XCore Target Descriptions -----------------===//
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 provides XCore specific target descriptions.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #include "XCoreMCTargetDesc.h"
15 #include "InstPrinter/XCoreInstPrinter.h"
16 #include "XCoreMCAsmInfo.h"
17 #include "XCoreTargetStreamer.h"
18 #include "llvm/MC/MCCodeGenInfo.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 "XCoreGenInstrInfo.inc"
30
31 #define GET_SUBTARGETINFO_MC_DESC
32 #include "XCoreGenSubtargetInfo.inc"
33
34 #define GET_REGINFO_MC_DESC
35 #include "XCoreGenRegisterInfo.inc"
36
createXCoreMCInstrInfo()37 static MCInstrInfo *createXCoreMCInstrInfo() {
38 MCInstrInfo *X = new MCInstrInfo();
39 InitXCoreMCInstrInfo(X);
40 return X;
41 }
42
createXCoreMCRegisterInfo(const Triple & TT)43 static MCRegisterInfo *createXCoreMCRegisterInfo(const Triple &TT) {
44 MCRegisterInfo *X = new MCRegisterInfo();
45 InitXCoreMCRegisterInfo(X, XCore::LR);
46 return X;
47 }
48
49 static MCSubtargetInfo *
createXCoreMCSubtargetInfo(const Triple & TT,StringRef CPU,StringRef FS)50 createXCoreMCSubtargetInfo(const Triple &TT, StringRef CPU, StringRef FS) {
51 return createXCoreMCSubtargetInfoImpl(TT, CPU, FS);
52 }
53
createXCoreMCAsmInfo(const MCRegisterInfo & MRI,const Triple & TT)54 static MCAsmInfo *createXCoreMCAsmInfo(const MCRegisterInfo &MRI,
55 const Triple &TT) {
56 MCAsmInfo *MAI = new XCoreMCAsmInfo(TT);
57
58 // Initial state of the frame pointer is SP.
59 MCCFIInstruction Inst = MCCFIInstruction::createDefCfa(nullptr, XCore::SP, 0);
60 MAI->addInitialFrameState(Inst);
61
62 return MAI;
63 }
64
createXCoreMCCodeGenInfo(const Triple & TT,Reloc::Model RM,CodeModel::Model CM,CodeGenOpt::Level OL)65 static MCCodeGenInfo *createXCoreMCCodeGenInfo(const Triple &TT,
66 Reloc::Model RM,
67 CodeModel::Model CM,
68 CodeGenOpt::Level OL) {
69 MCCodeGenInfo *X = new MCCodeGenInfo();
70 if (RM == Reloc::Default) {
71 RM = Reloc::Static;
72 }
73 if (CM == CodeModel::Default) {
74 CM = CodeModel::Small;
75 }
76 if (CM != CodeModel::Small && CM != CodeModel::Large)
77 report_fatal_error("Target only supports CodeModel Small or Large");
78
79 X->initMCCodeGenInfo(RM, CM, OL);
80 return X;
81 }
82
createXCoreMCInstPrinter(const Triple & T,unsigned SyntaxVariant,const MCAsmInfo & MAI,const MCInstrInfo & MII,const MCRegisterInfo & MRI)83 static MCInstPrinter *createXCoreMCInstPrinter(const Triple &T,
84 unsigned SyntaxVariant,
85 const MCAsmInfo &MAI,
86 const MCInstrInfo &MII,
87 const MCRegisterInfo &MRI) {
88 return new XCoreInstPrinter(MAI, MII, MRI);
89 }
90
XCoreTargetStreamer(MCStreamer & S)91 XCoreTargetStreamer::XCoreTargetStreamer(MCStreamer &S) : MCTargetStreamer(S) {}
~XCoreTargetStreamer()92 XCoreTargetStreamer::~XCoreTargetStreamer() {}
93
94 namespace {
95
96 class XCoreTargetAsmStreamer : public XCoreTargetStreamer {
97 formatted_raw_ostream &OS;
98 public:
99 XCoreTargetAsmStreamer(MCStreamer &S, formatted_raw_ostream &OS);
100 void emitCCTopData(StringRef Name) override;
101 void emitCCTopFunction(StringRef Name) override;
102 void emitCCBottomData(StringRef Name) override;
103 void emitCCBottomFunction(StringRef Name) override;
104 };
105
XCoreTargetAsmStreamer(MCStreamer & S,formatted_raw_ostream & OS)106 XCoreTargetAsmStreamer::XCoreTargetAsmStreamer(MCStreamer &S,
107 formatted_raw_ostream &OS)
108 : XCoreTargetStreamer(S), OS(OS) {}
109
emitCCTopData(StringRef Name)110 void XCoreTargetAsmStreamer::emitCCTopData(StringRef Name) {
111 OS << "\t.cc_top " << Name << ".data," << Name << '\n';
112 }
113
emitCCTopFunction(StringRef Name)114 void XCoreTargetAsmStreamer::emitCCTopFunction(StringRef Name) {
115 OS << "\t.cc_top " << Name << ".function," << Name << '\n';
116 }
117
emitCCBottomData(StringRef Name)118 void XCoreTargetAsmStreamer::emitCCBottomData(StringRef Name) {
119 OS << "\t.cc_bottom " << Name << ".data\n";
120 }
121
emitCCBottomFunction(StringRef Name)122 void XCoreTargetAsmStreamer::emitCCBottomFunction(StringRef Name) {
123 OS << "\t.cc_bottom " << Name << ".function\n";
124 }
125 }
126
createTargetAsmStreamer(MCStreamer & S,formatted_raw_ostream & OS,MCInstPrinter * InstPrint,bool isVerboseAsm)127 static MCTargetStreamer *createTargetAsmStreamer(MCStreamer &S,
128 formatted_raw_ostream &OS,
129 MCInstPrinter *InstPrint,
130 bool isVerboseAsm) {
131 return new XCoreTargetAsmStreamer(S, OS);
132 }
133
134 // Force static initialization.
LLVMInitializeXCoreTargetMC()135 extern "C" void LLVMInitializeXCoreTargetMC() {
136 // Register the MC asm info.
137 RegisterMCAsmInfoFn X(TheXCoreTarget, createXCoreMCAsmInfo);
138
139 // Register the MC codegen info.
140 TargetRegistry::RegisterMCCodeGenInfo(TheXCoreTarget,
141 createXCoreMCCodeGenInfo);
142
143 // Register the MC instruction info.
144 TargetRegistry::RegisterMCInstrInfo(TheXCoreTarget, createXCoreMCInstrInfo);
145
146 // Register the MC register info.
147 TargetRegistry::RegisterMCRegInfo(TheXCoreTarget, createXCoreMCRegisterInfo);
148
149 // Register the MC subtarget info.
150 TargetRegistry::RegisterMCSubtargetInfo(TheXCoreTarget,
151 createXCoreMCSubtargetInfo);
152
153 // Register the MCInstPrinter
154 TargetRegistry::RegisterMCInstPrinter(TheXCoreTarget,
155 createXCoreMCInstPrinter);
156
157 TargetRegistry::RegisterAsmTargetStreamer(TheXCoreTarget,
158 createTargetAsmStreamer);
159 }
160