1 //===-- HexagonMCTargetDesc.cpp - Hexagon 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 Hexagon specific target descriptions.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #include "HexagonMCTargetDesc.h"
15 #include "HexagonMCAsmInfo.h"
16 #include "MCTargetDesc/HexagonInstPrinter.h"
17 #include "llvm/MC/MCCodeGenInfo.h"
18 #include "llvm/MC/MCELFStreamer.h"
19 #include "llvm/MC/MCInstrInfo.h"
20 #include "llvm/MC/MCRegisterInfo.h"
21 #include "llvm/MC/MCStreamer.h"
22 #include "llvm/MC/MCSubtargetInfo.h"
23 #include "llvm/MC/MachineLocation.h"
24 #include "llvm/Support/ErrorHandling.h"
25 #include "llvm/Support/TargetRegistry.h"
26
27 using namespace llvm;
28
29 #define GET_INSTRINFO_MC_DESC
30 #include "HexagonGenInstrInfo.inc"
31
32 #define GET_SUBTARGETINFO_MC_DESC
33 #include "HexagonGenSubtargetInfo.inc"
34
35 #define GET_REGINFO_MC_DESC
36 #include "HexagonGenRegisterInfo.inc"
37
createHexagonMCInstrInfo()38 MCInstrInfo *llvm::createHexagonMCInstrInfo() {
39 MCInstrInfo *X = new MCInstrInfo();
40 InitHexagonMCInstrInfo(X);
41 return X;
42 }
43
createHexagonMCRegisterInfo(StringRef TT)44 static MCRegisterInfo *createHexagonMCRegisterInfo(StringRef TT) {
45 MCRegisterInfo *X = new MCRegisterInfo();
46 InitHexagonMCRegisterInfo(X, Hexagon::R0);
47 return X;
48 }
49
50 static MCSubtargetInfo *
createHexagonMCSubtargetInfo(StringRef TT,StringRef CPU,StringRef FS)51 createHexagonMCSubtargetInfo(StringRef TT, StringRef CPU, StringRef FS) {
52 MCSubtargetInfo *X = new MCSubtargetInfo();
53 InitHexagonMCSubtargetInfo(X, TT, CPU, FS);
54 return X;
55 }
56
createHexagonMCAsmInfo(const MCRegisterInfo & MRI,StringRef TT)57 static MCAsmInfo *createHexagonMCAsmInfo(const MCRegisterInfo &MRI,
58 StringRef TT) {
59 MCAsmInfo *MAI = new HexagonMCAsmInfo(TT);
60
61 // VirtualFP = (R30 + #0).
62 MCCFIInstruction Inst =
63 MCCFIInstruction::createDefCfa(nullptr, Hexagon::R30, 0);
64 MAI->addInitialFrameState(Inst);
65
66 return MAI;
67 }
68
createHexagonMCCodeGenInfo(StringRef TT,Reloc::Model RM,CodeModel::Model CM,CodeGenOpt::Level OL)69 static MCCodeGenInfo *createHexagonMCCodeGenInfo(StringRef TT, Reloc::Model RM,
70 CodeModel::Model CM,
71 CodeGenOpt::Level OL) {
72 MCCodeGenInfo *X = new MCCodeGenInfo();
73 // For the time being, use static relocations, since there's really no
74 // support for PIC yet.
75 X->InitMCCodeGenInfo(Reloc::Static, CM, OL);
76 return X;
77 }
78
createHexagonMCInstPrinter(const Triple & T,unsigned SyntaxVariant,const MCAsmInfo & MAI,const MCInstrInfo & MII,const MCRegisterInfo & MRI)79 static MCInstPrinter *createHexagonMCInstPrinter(const Triple &T,
80 unsigned SyntaxVariant,
81 const MCAsmInfo &MAI,
82 const MCInstrInfo &MII,
83 const MCRegisterInfo &MRI) {
84 if (SyntaxVariant == 0)
85 return(new HexagonInstPrinter(MAI, MII, MRI));
86 else
87 return nullptr;
88 }
89
90 // Force static initialization.
LLVMInitializeHexagonTargetMC()91 extern "C" void LLVMInitializeHexagonTargetMC() {
92 // Register the MC asm info.
93 RegisterMCAsmInfoFn X(TheHexagonTarget, createHexagonMCAsmInfo);
94
95 // Register the MC codegen info.
96 TargetRegistry::RegisterMCCodeGenInfo(TheHexagonTarget,
97 createHexagonMCCodeGenInfo);
98
99 // Register the MC instruction info.
100 TargetRegistry::RegisterMCInstrInfo(TheHexagonTarget,
101 createHexagonMCInstrInfo);
102
103 // Register the MC register info.
104 TargetRegistry::RegisterMCRegInfo(TheHexagonTarget,
105 createHexagonMCRegisterInfo);
106
107 // Register the MC subtarget info.
108 TargetRegistry::RegisterMCSubtargetInfo(TheHexagonTarget,
109 createHexagonMCSubtargetInfo);
110
111 // Register the MC Code Emitter
112 TargetRegistry::RegisterMCCodeEmitter(TheHexagonTarget,
113 createHexagonMCCodeEmitter);
114
115 // Register the MC Inst Printer
116 TargetRegistry::RegisterMCInstPrinter(TheHexagonTarget,
117 createHexagonMCInstPrinter);
118
119 // Register the asm backend
120 TargetRegistry::RegisterMCAsmBackend(TheHexagonTarget,
121 createHexagonAsmBackend);
122 }
123