1//===-- SystemZMCTargetDesc.cpp - SystemZ 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#include "SystemZMCTargetDesc.h"
10#include "SystemZInstPrinter.h"
11#include "SystemZMCAsmInfo.h"
12#include "TargetInfo/SystemZTargetInfo.h"
13#include "llvm/MC/MCDwarf.h"
14#include "llvm/MC/MCInstrInfo.h"
15#include "llvm/MC/MCRegisterInfo.h"
16#include "llvm/MC/MCStreamer.h"
17#include "llvm/MC/MCSubtargetInfo.h"
18#include "llvm/Support/TargetRegistry.h"
19
20using namespace llvm;
21
22#define GET_INSTRINFO_MC_DESC
23#include "SystemZGenInstrInfo.inc"
24
25#define GET_SUBTARGETINFO_MC_DESC
26#include "SystemZGenSubtargetInfo.inc"
27
28#define GET_REGINFO_MC_DESC
29#include "SystemZGenRegisterInfo.inc"
30
31const unsigned SystemZMC::GR32Regs[16] = {
32  SystemZ::R0L, SystemZ::R1L, SystemZ::R2L, SystemZ::R3L,
33  SystemZ::R4L, SystemZ::R5L, SystemZ::R6L, SystemZ::R7L,
34  SystemZ::R8L, SystemZ::R9L, SystemZ::R10L, SystemZ::R11L,
35  SystemZ::R12L, SystemZ::R13L, SystemZ::R14L, SystemZ::R15L
36};
37
38const unsigned SystemZMC::GRH32Regs[16] = {
39  SystemZ::R0H, SystemZ::R1H, SystemZ::R2H, SystemZ::R3H,
40  SystemZ::R4H, SystemZ::R5H, SystemZ::R6H, SystemZ::R7H,
41  SystemZ::R8H, SystemZ::R9H, SystemZ::R10H, SystemZ::R11H,
42  SystemZ::R12H, SystemZ::R13H, SystemZ::R14H, SystemZ::R15H
43};
44
45const unsigned SystemZMC::GR64Regs[16] = {
46  SystemZ::R0D, SystemZ::R1D, SystemZ::R2D, SystemZ::R3D,
47  SystemZ::R4D, SystemZ::R5D, SystemZ::R6D, SystemZ::R7D,
48  SystemZ::R8D, SystemZ::R9D, SystemZ::R10D, SystemZ::R11D,
49  SystemZ::R12D, SystemZ::R13D, SystemZ::R14D, SystemZ::R15D
50};
51
52const unsigned SystemZMC::GR128Regs[16] = {
53  SystemZ::R0Q, 0, SystemZ::R2Q, 0,
54  SystemZ::R4Q, 0, SystemZ::R6Q, 0,
55  SystemZ::R8Q, 0, SystemZ::R10Q, 0,
56  SystemZ::R12Q, 0, SystemZ::R14Q, 0
57};
58
59const unsigned SystemZMC::FP32Regs[16] = {
60  SystemZ::F0S, SystemZ::F1S, SystemZ::F2S, SystemZ::F3S,
61  SystemZ::F4S, SystemZ::F5S, SystemZ::F6S, SystemZ::F7S,
62  SystemZ::F8S, SystemZ::F9S, SystemZ::F10S, SystemZ::F11S,
63  SystemZ::F12S, SystemZ::F13S, SystemZ::F14S, SystemZ::F15S
64};
65
66const unsigned SystemZMC::FP64Regs[16] = {
67  SystemZ::F0D, SystemZ::F1D, SystemZ::F2D, SystemZ::F3D,
68  SystemZ::F4D, SystemZ::F5D, SystemZ::F6D, SystemZ::F7D,
69  SystemZ::F8D, SystemZ::F9D, SystemZ::F10D, SystemZ::F11D,
70  SystemZ::F12D, SystemZ::F13D, SystemZ::F14D, SystemZ::F15D
71};
72
73const unsigned SystemZMC::FP128Regs[16] = {
74  SystemZ::F0Q, SystemZ::F1Q, 0, 0,
75  SystemZ::F4Q, SystemZ::F5Q, 0, 0,
76  SystemZ::F8Q, SystemZ::F9Q, 0, 0,
77  SystemZ::F12Q, SystemZ::F13Q, 0, 0
78};
79
80const unsigned SystemZMC::VR32Regs[32] = {
81  SystemZ::F0S, SystemZ::F1S, SystemZ::F2S, SystemZ::F3S,
82  SystemZ::F4S, SystemZ::F5S, SystemZ::F6S, SystemZ::F7S,
83  SystemZ::F8S, SystemZ::F9S, SystemZ::F10S, SystemZ::F11S,
84  SystemZ::F12S, SystemZ::F13S, SystemZ::F14S, SystemZ::F15S,
85  SystemZ::F16S, SystemZ::F17S, SystemZ::F18S, SystemZ::F19S,
86  SystemZ::F20S, SystemZ::F21S, SystemZ::F22S, SystemZ::F23S,
87  SystemZ::F24S, SystemZ::F25S, SystemZ::F26S, SystemZ::F27S,
88  SystemZ::F28S, SystemZ::F29S, SystemZ::F30S, SystemZ::F31S
89};
90
91const unsigned SystemZMC::VR64Regs[32] = {
92  SystemZ::F0D, SystemZ::F1D, SystemZ::F2D, SystemZ::F3D,
93  SystemZ::F4D, SystemZ::F5D, SystemZ::F6D, SystemZ::F7D,
94  SystemZ::F8D, SystemZ::F9D, SystemZ::F10D, SystemZ::F11D,
95  SystemZ::F12D, SystemZ::F13D, SystemZ::F14D, SystemZ::F15D,
96  SystemZ::F16D, SystemZ::F17D, SystemZ::F18D, SystemZ::F19D,
97  SystemZ::F20D, SystemZ::F21D, SystemZ::F22D, SystemZ::F23D,
98  SystemZ::F24D, SystemZ::F25D, SystemZ::F26D, SystemZ::F27D,
99  SystemZ::F28D, SystemZ::F29D, SystemZ::F30D, SystemZ::F31D
100};
101
102const unsigned SystemZMC::VR128Regs[32] = {
103  SystemZ::V0, SystemZ::V1, SystemZ::V2, SystemZ::V3,
104  SystemZ::V4, SystemZ::V5, SystemZ::V6, SystemZ::V7,
105  SystemZ::V8, SystemZ::V9, SystemZ::V10, SystemZ::V11,
106  SystemZ::V12, SystemZ::V13, SystemZ::V14, SystemZ::V15,
107  SystemZ::V16, SystemZ::V17, SystemZ::V18, SystemZ::V19,
108  SystemZ::V20, SystemZ::V21, SystemZ::V22, SystemZ::V23,
109  SystemZ::V24, SystemZ::V25, SystemZ::V26, SystemZ::V27,
110  SystemZ::V28, SystemZ::V29, SystemZ::V30, SystemZ::V31
111};
112
113const unsigned SystemZMC::AR32Regs[16] = {
114  SystemZ::A0, SystemZ::A1, SystemZ::A2, SystemZ::A3,
115  SystemZ::A4, SystemZ::A5, SystemZ::A6, SystemZ::A7,
116  SystemZ::A8, SystemZ::A9, SystemZ::A10, SystemZ::A11,
117  SystemZ::A12, SystemZ::A13, SystemZ::A14, SystemZ::A15
118};
119
120const unsigned SystemZMC::CR64Regs[16] = {
121  SystemZ::C0, SystemZ::C1, SystemZ::C2, SystemZ::C3,
122  SystemZ::C4, SystemZ::C5, SystemZ::C6, SystemZ::C7,
123  SystemZ::C8, SystemZ::C9, SystemZ::C10, SystemZ::C11,
124  SystemZ::C12, SystemZ::C13, SystemZ::C14, SystemZ::C15
125};
126
127unsigned SystemZMC::getFirstReg(unsigned Reg) {
128  static unsigned Map[SystemZ::NUM_TARGET_REGS];
129  static bool Initialized = false;
130  if (!Initialized) {
131    for (unsigned I = 0; I < 16; ++I) {
132      Map[GR32Regs[I]] = I;
133      Map[GRH32Regs[I]] = I;
134      Map[GR64Regs[I]] = I;
135      Map[GR128Regs[I]] = I;
136      Map[FP128Regs[I]] = I;
137      Map[AR32Regs[I]] = I;
138    }
139    for (unsigned I = 0; I < 32; ++I) {
140      Map[VR32Regs[I]] = I;
141      Map[VR64Regs[I]] = I;
142      Map[VR128Regs[I]] = I;
143    }
144  }
145  assert(Reg < SystemZ::NUM_TARGET_REGS);
146  return Map[Reg];
147}
148
149static MCAsmInfo *createSystemZMCAsmInfo(const MCRegisterInfo &MRI,
150                                         const Triple &TT,
151                                         const MCTargetOptions &Options) {
152  MCAsmInfo *MAI = new SystemZMCAsmInfo(TT);
153  MCCFIInstruction Inst = MCCFIInstruction::cfiDefCfa(
154      nullptr, MRI.getDwarfRegNum(SystemZ::R15D, true),
155      SystemZMC::CFAOffsetFromInitialSP);
156  MAI->addInitialFrameState(Inst);
157  return MAI;
158}
159
160static MCInstrInfo *createSystemZMCInstrInfo() {
161  MCInstrInfo *X = new MCInstrInfo();
162  InitSystemZMCInstrInfo(X);
163  return X;
164}
165
166static MCRegisterInfo *createSystemZMCRegisterInfo(const Triple &TT) {
167  MCRegisterInfo *X = new MCRegisterInfo();
168  InitSystemZMCRegisterInfo(X, SystemZ::R14D);
169  return X;
170}
171
172static MCSubtargetInfo *
173createSystemZMCSubtargetInfo(const Triple &TT, StringRef CPU, StringRef FS) {
174  return createSystemZMCSubtargetInfoImpl(TT, CPU, FS);
175}
176
177static MCInstPrinter *createSystemZMCInstPrinter(const Triple &T,
178                                                 unsigned SyntaxVariant,
179                                                 const MCAsmInfo &MAI,
180                                                 const MCInstrInfo &MII,
181                                                 const MCRegisterInfo &MRI) {
182  return new SystemZInstPrinter(MAI, MII, MRI);
183}
184
185extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeSystemZTargetMC() {
186  // Register the MCAsmInfo.
187  TargetRegistry::RegisterMCAsmInfo(getTheSystemZTarget(),
188                                    createSystemZMCAsmInfo);
189
190  // Register the MCCodeEmitter.
191  TargetRegistry::RegisterMCCodeEmitter(getTheSystemZTarget(),
192                                        createSystemZMCCodeEmitter);
193
194  // Register the MCInstrInfo.
195  TargetRegistry::RegisterMCInstrInfo(getTheSystemZTarget(),
196                                      createSystemZMCInstrInfo);
197
198  // Register the MCRegisterInfo.
199  TargetRegistry::RegisterMCRegInfo(getTheSystemZTarget(),
200                                    createSystemZMCRegisterInfo);
201
202  // Register the MCSubtargetInfo.
203  TargetRegistry::RegisterMCSubtargetInfo(getTheSystemZTarget(),
204                                          createSystemZMCSubtargetInfo);
205
206  // Register the MCAsmBackend.
207  TargetRegistry::RegisterMCAsmBackend(getTheSystemZTarget(),
208                                       createSystemZMCAsmBackend);
209
210  // Register the MCInstPrinter.
211  TargetRegistry::RegisterMCInstPrinter(getTheSystemZTarget(),
212                                        createSystemZMCInstPrinter);
213}
214