1//===-- MSP430MCTargetDesc.cpp - MSP430 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 MSP430 specific target descriptions.
10//
11//===----------------------------------------------------------------------===//
12
13#include "MSP430MCTargetDesc.h"
14#include "MSP430InstPrinter.h"
15#include "MSP430MCAsmInfo.h"
16#include "TargetInfo/MSP430TargetInfo.h"
17#include "llvm/MC/MCDwarf.h"
18#include "llvm/MC/MCInstrInfo.h"
19#include "llvm/MC/MCRegisterInfo.h"
20#include "llvm/MC/MCSubtargetInfo.h"
21#include "llvm/MC/TargetRegistry.h"
22
23using namespace llvm;
24
25#define GET_INSTRINFO_MC_DESC
26#define ENABLE_INSTR_PREDICATE_VERIFIER
27#include "MSP430GenInstrInfo.inc"
28
29#define GET_SUBTARGETINFO_MC_DESC
30#include "MSP430GenSubtargetInfo.inc"
31
32#define GET_REGINFO_MC_DESC
33#include "MSP430GenRegisterInfo.inc"
34
35static MCInstrInfo *createMSP430MCInstrInfo() {
36 MCInstrInfo *X = new MCInstrInfo();
37 InitMSP430MCInstrInfo(II: X);
38 return X;
39}
40
41static MCRegisterInfo *createMSP430MCRegisterInfo(const Triple &TT) {
42 MCRegisterInfo *X = new MCRegisterInfo();
43 InitMSP430MCRegisterInfo(RI: X, RA: MSP430::PC);
44 return X;
45}
46
47static MCAsmInfo *createMSP430MCAsmInfo(const MCRegisterInfo &MRI,
48 const Triple &TT,
49 const MCTargetOptions &Options) {
50 MCAsmInfo *MAI = new MSP430MCAsmInfo(TT);
51
52 // Initialize initial frame state.
53 int stackGrowth = -2;
54
55 // Initial state of the frame pointer is sp+ptr_size.
56 MCCFIInstruction Inst = MCCFIInstruction::cfiDefCfa(
57 L: nullptr, Register: MRI.getDwarfRegNum(RegNum: MSP430::SP, isEH: true), Offset: -stackGrowth);
58 MAI->addInitialFrameState(Inst);
59
60 // Add return address to move list
61 MCCFIInstruction Inst2 = MCCFIInstruction::createOffset(
62 L: nullptr, Register: MRI.getDwarfRegNum(RegNum: MSP430::PC, isEH: true), Offset: stackGrowth);
63 MAI->addInitialFrameState(Inst: Inst2);
64
65 return MAI;
66}
67
68static MCSubtargetInfo *
69createMSP430MCSubtargetInfo(const Triple &TT, StringRef CPU, StringRef FS) {
70 return createMSP430MCSubtargetInfoImpl(TT, CPU, /*TuneCPU*/ CPU, FS);
71}
72
73static MCInstPrinter *createMSP430MCInstPrinter(const Triple &T,
74 unsigned SyntaxVariant,
75 const MCAsmInfo &MAI,
76 const MCInstrInfo &MII,
77 const MCRegisterInfo &MRI) {
78 if (SyntaxVariant == 0)
79 return new MSP430InstPrinter(MAI, MII, MRI);
80 return nullptr;
81}
82
83extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeMSP430TargetMC() {
84 Target &T = getTheMSP430Target();
85
86 TargetRegistry::RegisterMCAsmInfo(T, Fn: createMSP430MCAsmInfo);
87 TargetRegistry::RegisterMCInstrInfo(T, Fn: createMSP430MCInstrInfo);
88 TargetRegistry::RegisterMCRegInfo(T, Fn: createMSP430MCRegisterInfo);
89 TargetRegistry::RegisterMCSubtargetInfo(T, Fn: createMSP430MCSubtargetInfo);
90 TargetRegistry::RegisterMCInstPrinter(T, Fn: createMSP430MCInstPrinter);
91 TargetRegistry::RegisterMCCodeEmitter(T, Fn: createMSP430MCCodeEmitter);
92 TargetRegistry::RegisterMCAsmBackend(T, Fn: createMSP430MCAsmBackend);
93 TargetRegistry::RegisterObjectTargetStreamer(
94 T, Fn: createMSP430ObjectTargetStreamer);
95}
96