1 //===-- WebAssemblyMCTargetDesc.cpp - WebAssembly 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 /// \file
10 /// This file provides WebAssembly-specific target descriptions.
11 ///
12 //===----------------------------------------------------------------------===//
13
14 #include "MCTargetDesc/WebAssemblyMCTargetDesc.h"
15 #include "MCTargetDesc/WebAssemblyInstPrinter.h"
16 #include "MCTargetDesc/WebAssemblyMCAsmInfo.h"
17 #include "MCTargetDesc/WebAssemblyTargetStreamer.h"
18 #include "TargetInfo/WebAssemblyTargetInfo.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/TargetRegistry.h"
24 using namespace llvm;
25
26 #define DEBUG_TYPE "wasm-mc-target-desc"
27
28 #define GET_INSTRINFO_MC_DESC
29 #include "WebAssemblyGenInstrInfo.inc"
30
31 #define GET_SUBTARGETINFO_MC_DESC
32 #include "WebAssemblyGenSubtargetInfo.inc"
33
34 #define GET_REGINFO_MC_DESC
35 #include "WebAssemblyGenRegisterInfo.inc"
36
createMCAsmInfo(const MCRegisterInfo &,const Triple & TT,const MCTargetOptions & Options)37 static MCAsmInfo *createMCAsmInfo(const MCRegisterInfo & /*MRI*/,
38 const Triple &TT,
39 const MCTargetOptions &Options) {
40 return new WebAssemblyMCAsmInfo(TT, Options);
41 }
42
createMCInstrInfo()43 static MCInstrInfo *createMCInstrInfo() {
44 auto *X = new MCInstrInfo();
45 InitWebAssemblyMCInstrInfo(X);
46 return X;
47 }
48
createMCRegisterInfo(const Triple &)49 static MCRegisterInfo *createMCRegisterInfo(const Triple & /*T*/) {
50 auto *X = new MCRegisterInfo();
51 InitWebAssemblyMCRegisterInfo(X, 0);
52 return X;
53 }
54
createMCInstPrinter(const Triple &,unsigned SyntaxVariant,const MCAsmInfo & MAI,const MCInstrInfo & MII,const MCRegisterInfo & MRI)55 static MCInstPrinter *createMCInstPrinter(const Triple & /*T*/,
56 unsigned SyntaxVariant,
57 const MCAsmInfo &MAI,
58 const MCInstrInfo &MII,
59 const MCRegisterInfo &MRI) {
60 assert(SyntaxVariant == 0 && "WebAssembly only has one syntax variant");
61 return new WebAssemblyInstPrinter(MAI, MII, MRI);
62 }
63
createCodeEmitter(const MCInstrInfo & MCII,const MCRegisterInfo &,MCContext & Ctx)64 static MCCodeEmitter *createCodeEmitter(const MCInstrInfo &MCII,
65 const MCRegisterInfo & /*MRI*/,
66 MCContext &Ctx) {
67 return createWebAssemblyMCCodeEmitter(MCII);
68 }
69
createAsmBackend(const Target &,const MCSubtargetInfo & STI,const MCRegisterInfo &,const MCTargetOptions &)70 static MCAsmBackend *createAsmBackend(const Target & /*T*/,
71 const MCSubtargetInfo &STI,
72 const MCRegisterInfo & /*MRI*/,
73 const MCTargetOptions & /*Options*/) {
74 return createWebAssemblyAsmBackend(STI.getTargetTriple());
75 }
76
createMCSubtargetInfo(const Triple & TT,StringRef CPU,StringRef FS)77 static MCSubtargetInfo *createMCSubtargetInfo(const Triple &TT, StringRef CPU,
78 StringRef FS) {
79 return createWebAssemblyMCSubtargetInfoImpl(TT, CPU, /*TuneCPU*/ CPU, FS);
80 }
81
82 static MCTargetStreamer *
createObjectTargetStreamer(MCStreamer & S,const MCSubtargetInfo & STI)83 createObjectTargetStreamer(MCStreamer &S, const MCSubtargetInfo &STI) {
84 return new WebAssemblyTargetWasmStreamer(S);
85 }
86
createAsmTargetStreamer(MCStreamer & S,formatted_raw_ostream & OS,MCInstPrinter *,bool)87 static MCTargetStreamer *createAsmTargetStreamer(MCStreamer &S,
88 formatted_raw_ostream &OS,
89 MCInstPrinter * /*InstPrint*/,
90 bool /*isVerboseAsm*/) {
91 return new WebAssemblyTargetAsmStreamer(S, OS);
92 }
93
createNullTargetStreamer(MCStreamer & S)94 static MCTargetStreamer *createNullTargetStreamer(MCStreamer &S) {
95 return new WebAssemblyTargetNullStreamer(S);
96 }
97
98 // Force static initialization.
LLVMInitializeWebAssemblyTargetMC()99 extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeWebAssemblyTargetMC() {
100 for (Target *T :
101 {&getTheWebAssemblyTarget32(), &getTheWebAssemblyTarget64()}) {
102 // Register the MC asm info.
103 RegisterMCAsmInfoFn X(*T, createMCAsmInfo);
104
105 // Register the MC instruction info.
106 TargetRegistry::RegisterMCInstrInfo(*T, createMCInstrInfo);
107
108 // Register the MC register info.
109 TargetRegistry::RegisterMCRegInfo(*T, createMCRegisterInfo);
110
111 // Register the MCInstPrinter.
112 TargetRegistry::RegisterMCInstPrinter(*T, createMCInstPrinter);
113
114 // Register the MC code emitter.
115 TargetRegistry::RegisterMCCodeEmitter(*T, createCodeEmitter);
116
117 // Register the ASM Backend.
118 TargetRegistry::RegisterMCAsmBackend(*T, createAsmBackend);
119
120 // Register the MC subtarget info.
121 TargetRegistry::RegisterMCSubtargetInfo(*T, createMCSubtargetInfo);
122
123 // Register the object target streamer.
124 TargetRegistry::RegisterObjectTargetStreamer(*T,
125 createObjectTargetStreamer);
126 // Register the asm target streamer.
127 TargetRegistry::RegisterAsmTargetStreamer(*T, createAsmTargetStreamer);
128 // Register the null target streamer.
129 TargetRegistry::RegisterNullTargetStreamer(*T, createNullTargetStreamer);
130 }
131 }
132