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#include "llvm/Support/Compiler.h"
23
24using namespace llvm;
25
26#define GET_INSTRINFO_MC_DESC
27#define ENABLE_INSTR_PREDICATE_VERIFIER
28#include "MSP430GenInstrInfo.inc"
29
30#define GET_SUBTARGETINFO_MC_DESC
31#include "MSP430GenSubtargetInfo.inc"
32
33#define GET_REGINFO_MC_DESC
34#include "MSP430GenRegisterInfo.inc"
35
36static MCInstrInfo *createMSP430MCInstrInfo() {
37 MCInstrInfo *X = new MCInstrInfo();
38 InitMSP430MCInstrInfo(II: X);
39 return X;
40}
41
42static MCRegisterInfo *createMSP430MCRegisterInfo(const Triple &TT) {
43 MCRegisterInfo *X = new MCRegisterInfo();
44 InitMSP430MCRegisterInfo(RI: X, RA: MSP430::PC);
45 return X;
46}
47
48static MCAsmInfo *createMSP430MCAsmInfo(const MCRegisterInfo &MRI,
49 const Triple &TT,
50 const MCTargetOptions &Options) {
51 MCAsmInfo *MAI = new MSP430MCAsmInfo(TT);
52
53 // Initialize initial frame state.
54 int stackGrowth = -2;
55
56 // Initial state of the frame pointer is sp+ptr_size.
57 MCCFIInstruction Inst = MCCFIInstruction::cfiDefCfa(
58 L: nullptr, Register: MRI.getDwarfRegNum(RegNum: MSP430::SP, isEH: true), Offset: -stackGrowth);
59 MAI->addInitialFrameState(Inst);
60
61 // Add return address to move list
62 MCCFIInstruction Inst2 = MCCFIInstruction::createOffset(
63 L: nullptr, Register: MRI.getDwarfRegNum(RegNum: MSP430::PC, isEH: true), Offset: stackGrowth);
64 MAI->addInitialFrameState(Inst: Inst2);
65
66 return MAI;
67}
68
69static MCSubtargetInfo *
70createMSP430MCSubtargetInfo(const Triple &TT, StringRef CPU, StringRef FS) {
71 return createMSP430MCSubtargetInfoImpl(TT, CPU, /*TuneCPU*/ CPU, FS);
72}
73
74static MCInstPrinter *createMSP430MCInstPrinter(const Triple &T,
75 unsigned SyntaxVariant,
76 const MCAsmInfo &MAI,
77 const MCInstrInfo &MII,
78 const MCRegisterInfo &MRI) {
79 if (SyntaxVariant == 0)
80 return new MSP430InstPrinter(MAI, MII, MRI);
81 return nullptr;
82}
83
84extern "C" LLVM_ABI LLVM_EXTERNAL_VISIBILITY void
85LLVMInitializeMSP430TargetMC() {
86 Target &T = getTheMSP430Target();
87
88 TargetRegistry::RegisterMCAsmInfo(T, Fn: createMSP430MCAsmInfo);
89 TargetRegistry::RegisterMCInstrInfo(T, Fn: createMSP430MCInstrInfo);
90 TargetRegistry::RegisterMCRegInfo(T, Fn: createMSP430MCRegisterInfo);
91 TargetRegistry::RegisterMCSubtargetInfo(T, Fn: createMSP430MCSubtargetInfo);
92 TargetRegistry::RegisterMCInstPrinter(T, Fn: createMSP430MCInstPrinter);
93 TargetRegistry::RegisterMCCodeEmitter(T, Fn: createMSP430MCCodeEmitter);
94 TargetRegistry::RegisterMCAsmBackend(T, Fn: createMSP430MCAsmBackend);
95 TargetRegistry::RegisterObjectTargetStreamer(
96 T, Fn: createMSP430ObjectTargetStreamer);
97}
98