/src/llvm-project/llvm/lib/Target/SystemZ/MCTargetDesc/SystemZMCTargetDesc.cpp
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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 "SystemZTargetStreamer.h" |
13 | | #include "TargetInfo/SystemZTargetInfo.h" |
14 | | #include "llvm/MC/MCContext.h" |
15 | | #include "llvm/MC/MCDwarf.h" |
16 | | #include "llvm/MC/MCInst.h" |
17 | | #include "llvm/MC/MCInstrInfo.h" |
18 | | #include "llvm/MC/MCRegisterInfo.h" |
19 | | #include "llvm/MC/MCStreamer.h" |
20 | | #include "llvm/MC/MCSubtargetInfo.h" |
21 | | #include "llvm/MC/TargetRegistry.h" |
22 | | |
23 | | using namespace llvm; |
24 | | |
25 | | #define GET_INSTRINFO_MC_DESC |
26 | | #define ENABLE_INSTR_PREDICATE_VERIFIER |
27 | | #include "SystemZGenInstrInfo.inc" |
28 | | |
29 | | #define GET_SUBTARGETINFO_MC_DESC |
30 | | #include "SystemZGenSubtargetInfo.inc" |
31 | | |
32 | | #define GET_REGINFO_MC_DESC |
33 | | #include "SystemZGenRegisterInfo.inc" |
34 | | |
35 | | const unsigned SystemZMC::GR32Regs[16] = { |
36 | | SystemZ::R0L, SystemZ::R1L, SystemZ::R2L, SystemZ::R3L, |
37 | | SystemZ::R4L, SystemZ::R5L, SystemZ::R6L, SystemZ::R7L, |
38 | | SystemZ::R8L, SystemZ::R9L, SystemZ::R10L, SystemZ::R11L, |
39 | | SystemZ::R12L, SystemZ::R13L, SystemZ::R14L, SystemZ::R15L |
40 | | }; |
41 | | |
42 | | const unsigned SystemZMC::GRH32Regs[16] = { |
43 | | SystemZ::R0H, SystemZ::R1H, SystemZ::R2H, SystemZ::R3H, |
44 | | SystemZ::R4H, SystemZ::R5H, SystemZ::R6H, SystemZ::R7H, |
45 | | SystemZ::R8H, SystemZ::R9H, SystemZ::R10H, SystemZ::R11H, |
46 | | SystemZ::R12H, SystemZ::R13H, SystemZ::R14H, SystemZ::R15H |
47 | | }; |
48 | | |
49 | | const unsigned SystemZMC::GR64Regs[16] = { |
50 | | SystemZ::R0D, SystemZ::R1D, SystemZ::R2D, SystemZ::R3D, |
51 | | SystemZ::R4D, SystemZ::R5D, SystemZ::R6D, SystemZ::R7D, |
52 | | SystemZ::R8D, SystemZ::R9D, SystemZ::R10D, SystemZ::R11D, |
53 | | SystemZ::R12D, SystemZ::R13D, SystemZ::R14D, SystemZ::R15D |
54 | | }; |
55 | | |
56 | | const unsigned SystemZMC::GR128Regs[16] = { |
57 | | SystemZ::R0Q, 0, SystemZ::R2Q, 0, |
58 | | SystemZ::R4Q, 0, SystemZ::R6Q, 0, |
59 | | SystemZ::R8Q, 0, SystemZ::R10Q, 0, |
60 | | SystemZ::R12Q, 0, SystemZ::R14Q, 0 |
61 | | }; |
62 | | |
63 | | const unsigned SystemZMC::FP32Regs[16] = { |
64 | | SystemZ::F0S, SystemZ::F1S, SystemZ::F2S, SystemZ::F3S, |
65 | | SystemZ::F4S, SystemZ::F5S, SystemZ::F6S, SystemZ::F7S, |
66 | | SystemZ::F8S, SystemZ::F9S, SystemZ::F10S, SystemZ::F11S, |
67 | | SystemZ::F12S, SystemZ::F13S, SystemZ::F14S, SystemZ::F15S |
68 | | }; |
69 | | |
70 | | const unsigned SystemZMC::FP64Regs[16] = { |
71 | | SystemZ::F0D, SystemZ::F1D, SystemZ::F2D, SystemZ::F3D, |
72 | | SystemZ::F4D, SystemZ::F5D, SystemZ::F6D, SystemZ::F7D, |
73 | | SystemZ::F8D, SystemZ::F9D, SystemZ::F10D, SystemZ::F11D, |
74 | | SystemZ::F12D, SystemZ::F13D, SystemZ::F14D, SystemZ::F15D |
75 | | }; |
76 | | |
77 | | const unsigned SystemZMC::FP128Regs[16] = { |
78 | | SystemZ::F0Q, SystemZ::F1Q, 0, 0, |
79 | | SystemZ::F4Q, SystemZ::F5Q, 0, 0, |
80 | | SystemZ::F8Q, SystemZ::F9Q, 0, 0, |
81 | | SystemZ::F12Q, SystemZ::F13Q, 0, 0 |
82 | | }; |
83 | | |
84 | | const unsigned SystemZMC::VR32Regs[32] = { |
85 | | SystemZ::F0S, SystemZ::F1S, SystemZ::F2S, SystemZ::F3S, |
86 | | SystemZ::F4S, SystemZ::F5S, SystemZ::F6S, SystemZ::F7S, |
87 | | SystemZ::F8S, SystemZ::F9S, SystemZ::F10S, SystemZ::F11S, |
88 | | SystemZ::F12S, SystemZ::F13S, SystemZ::F14S, SystemZ::F15S, |
89 | | SystemZ::F16S, SystemZ::F17S, SystemZ::F18S, SystemZ::F19S, |
90 | | SystemZ::F20S, SystemZ::F21S, SystemZ::F22S, SystemZ::F23S, |
91 | | SystemZ::F24S, SystemZ::F25S, SystemZ::F26S, SystemZ::F27S, |
92 | | SystemZ::F28S, SystemZ::F29S, SystemZ::F30S, SystemZ::F31S |
93 | | }; |
94 | | |
95 | | const unsigned SystemZMC::VR64Regs[32] = { |
96 | | SystemZ::F0D, SystemZ::F1D, SystemZ::F2D, SystemZ::F3D, |
97 | | SystemZ::F4D, SystemZ::F5D, SystemZ::F6D, SystemZ::F7D, |
98 | | SystemZ::F8D, SystemZ::F9D, SystemZ::F10D, SystemZ::F11D, |
99 | | SystemZ::F12D, SystemZ::F13D, SystemZ::F14D, SystemZ::F15D, |
100 | | SystemZ::F16D, SystemZ::F17D, SystemZ::F18D, SystemZ::F19D, |
101 | | SystemZ::F20D, SystemZ::F21D, SystemZ::F22D, SystemZ::F23D, |
102 | | SystemZ::F24D, SystemZ::F25D, SystemZ::F26D, SystemZ::F27D, |
103 | | SystemZ::F28D, SystemZ::F29D, SystemZ::F30D, SystemZ::F31D |
104 | | }; |
105 | | |
106 | | const unsigned SystemZMC::VR128Regs[32] = { |
107 | | SystemZ::V0, SystemZ::V1, SystemZ::V2, SystemZ::V3, |
108 | | SystemZ::V4, SystemZ::V5, SystemZ::V6, SystemZ::V7, |
109 | | SystemZ::V8, SystemZ::V9, SystemZ::V10, SystemZ::V11, |
110 | | SystemZ::V12, SystemZ::V13, SystemZ::V14, SystemZ::V15, |
111 | | SystemZ::V16, SystemZ::V17, SystemZ::V18, SystemZ::V19, |
112 | | SystemZ::V20, SystemZ::V21, SystemZ::V22, SystemZ::V23, |
113 | | SystemZ::V24, SystemZ::V25, SystemZ::V26, SystemZ::V27, |
114 | | SystemZ::V28, SystemZ::V29, SystemZ::V30, SystemZ::V31 |
115 | | }; |
116 | | |
117 | | const unsigned SystemZMC::AR32Regs[16] = { |
118 | | SystemZ::A0, SystemZ::A1, SystemZ::A2, SystemZ::A3, |
119 | | SystemZ::A4, SystemZ::A5, SystemZ::A6, SystemZ::A7, |
120 | | SystemZ::A8, SystemZ::A9, SystemZ::A10, SystemZ::A11, |
121 | | SystemZ::A12, SystemZ::A13, SystemZ::A14, SystemZ::A15 |
122 | | }; |
123 | | |
124 | | const unsigned SystemZMC::CR64Regs[16] = { |
125 | | SystemZ::C0, SystemZ::C1, SystemZ::C2, SystemZ::C3, |
126 | | SystemZ::C4, SystemZ::C5, SystemZ::C6, SystemZ::C7, |
127 | | SystemZ::C8, SystemZ::C9, SystemZ::C10, SystemZ::C11, |
128 | | SystemZ::C12, SystemZ::C13, SystemZ::C14, SystemZ::C15 |
129 | | }; |
130 | | |
131 | 0 | unsigned SystemZMC::getFirstReg(unsigned Reg) { |
132 | 0 | static unsigned Map[SystemZ::NUM_TARGET_REGS]; |
133 | 0 | static bool Initialized = false; |
134 | 0 | if (!Initialized) { |
135 | 0 | for (unsigned I = 0; I < 16; ++I) { |
136 | 0 | Map[GR32Regs[I]] = I; |
137 | 0 | Map[GRH32Regs[I]] = I; |
138 | 0 | Map[GR64Regs[I]] = I; |
139 | 0 | Map[GR128Regs[I]] = I; |
140 | 0 | Map[FP128Regs[I]] = I; |
141 | 0 | Map[AR32Regs[I]] = I; |
142 | 0 | } |
143 | 0 | for (unsigned I = 0; I < 32; ++I) { |
144 | 0 | Map[VR32Regs[I]] = I; |
145 | 0 | Map[VR64Regs[I]] = I; |
146 | 0 | Map[VR128Regs[I]] = I; |
147 | 0 | } |
148 | 0 | } |
149 | 0 | assert(Reg < SystemZ::NUM_TARGET_REGS); |
150 | 0 | return Map[Reg]; |
151 | 0 | } |
152 | | |
153 | | static MCAsmInfo *createSystemZMCAsmInfo(const MCRegisterInfo &MRI, |
154 | | const Triple &TT, |
155 | 0 | const MCTargetOptions &Options) { |
156 | 0 | if (TT.isOSzOS()) |
157 | 0 | return new SystemZMCAsmInfoGOFF(TT); |
158 | | |
159 | 0 | MCAsmInfo *MAI = new SystemZMCAsmInfoELF(TT); |
160 | 0 | MCCFIInstruction Inst = MCCFIInstruction::cfiDefCfa( |
161 | 0 | nullptr, MRI.getDwarfRegNum(SystemZ::R15D, true), |
162 | 0 | SystemZMC::ELFCFAOffsetFromInitialSP); |
163 | 0 | MAI->addInitialFrameState(Inst); |
164 | 0 | return MAI; |
165 | 0 | } |
166 | | |
167 | 0 | static MCInstrInfo *createSystemZMCInstrInfo() { |
168 | 0 | MCInstrInfo *X = new MCInstrInfo(); |
169 | 0 | InitSystemZMCInstrInfo(X); |
170 | 0 | return X; |
171 | 0 | } |
172 | | |
173 | 0 | static MCRegisterInfo *createSystemZMCRegisterInfo(const Triple &TT) { |
174 | 0 | MCRegisterInfo *X = new MCRegisterInfo(); |
175 | 0 | InitSystemZMCRegisterInfo(X, SystemZ::R14D); |
176 | 0 | return X; |
177 | 0 | } |
178 | | |
179 | | static MCSubtargetInfo * |
180 | 0 | createSystemZMCSubtargetInfo(const Triple &TT, StringRef CPU, StringRef FS) { |
181 | 0 | return createSystemZMCSubtargetInfoImpl(TT, CPU, /*TuneCPU*/ CPU, FS); |
182 | 0 | } |
183 | | |
184 | | static MCInstPrinter *createSystemZMCInstPrinter(const Triple &T, |
185 | | unsigned SyntaxVariant, |
186 | | const MCAsmInfo &MAI, |
187 | | const MCInstrInfo &MII, |
188 | 0 | const MCRegisterInfo &MRI) { |
189 | 0 | return new SystemZInstPrinter(MAI, MII, MRI); |
190 | 0 | } |
191 | | |
192 | 0 | void SystemZTargetStreamer::emitConstantPools() { |
193 | | // Emit EXRL target instructions. |
194 | 0 | if (EXRLTargets2Sym.empty()) |
195 | 0 | return; |
196 | | // Switch to the .text section. |
197 | 0 | const MCObjectFileInfo &OFI = *Streamer.getContext().getObjectFileInfo(); |
198 | 0 | Streamer.switchSection(OFI.getTextSection()); |
199 | 0 | for (auto &I : EXRLTargets2Sym) { |
200 | 0 | Streamer.emitLabel(I.second); |
201 | 0 | const MCInstSTIPair &MCI_STI = I.first; |
202 | 0 | Streamer.emitInstruction(MCI_STI.first, *MCI_STI.second); |
203 | 0 | } |
204 | 0 | EXRLTargets2Sym.clear(); |
205 | 0 | } |
206 | | |
207 | | namespace { |
208 | | class SystemZTargetAsmStreamer : public SystemZTargetStreamer { |
209 | | formatted_raw_ostream &OS; |
210 | | |
211 | | public: |
212 | | SystemZTargetAsmStreamer(MCStreamer &S, formatted_raw_ostream &OS) |
213 | 0 | : SystemZTargetStreamer(S), OS(OS) {} |
214 | 0 | void emitMachine(StringRef CPU) override { |
215 | 0 | OS << "\t.machine " << CPU << "\n"; |
216 | 0 | } |
217 | | }; |
218 | | |
219 | | class SystemZTargetELFStreamer : public SystemZTargetStreamer { |
220 | | public: |
221 | 0 | SystemZTargetELFStreamer(MCStreamer &S) : SystemZTargetStreamer(S) {} |
222 | 0 | void emitMachine(StringRef CPU) override {} |
223 | | }; |
224 | | } // end namespace |
225 | | |
226 | | static MCTargetStreamer * |
227 | | createAsmTargetStreamer(MCStreamer &S, |
228 | | formatted_raw_ostream &OS, |
229 | | MCInstPrinter *InstPrint, |
230 | 0 | bool isVerboseAsm) { |
231 | 0 | return new SystemZTargetAsmStreamer(S, OS); |
232 | 0 | } |
233 | | |
234 | | static MCTargetStreamer * |
235 | 0 | createObjectTargetStreamer(MCStreamer &S, const MCSubtargetInfo &STI) { |
236 | 0 | return new SystemZTargetELFStreamer(S); |
237 | 0 | } |
238 | | |
239 | | static MCTargetStreamer * |
240 | 0 | createNullTargetStreamer(MCStreamer &S) { |
241 | 0 | return new SystemZTargetStreamer(S); |
242 | 0 | } |
243 | | |
244 | 62 | extern "C" LLVM_EXTERNAL_VISIBILITY void LLVMInitializeSystemZTargetMC() { |
245 | | // Register the MCAsmInfo. |
246 | 62 | TargetRegistry::RegisterMCAsmInfo(getTheSystemZTarget(), |
247 | 62 | createSystemZMCAsmInfo); |
248 | | |
249 | | // Register the MCCodeEmitter. |
250 | 62 | TargetRegistry::RegisterMCCodeEmitter(getTheSystemZTarget(), |
251 | 62 | createSystemZMCCodeEmitter); |
252 | | |
253 | | // Register the MCInstrInfo. |
254 | 62 | TargetRegistry::RegisterMCInstrInfo(getTheSystemZTarget(), |
255 | 62 | createSystemZMCInstrInfo); |
256 | | |
257 | | // Register the MCRegisterInfo. |
258 | 62 | TargetRegistry::RegisterMCRegInfo(getTheSystemZTarget(), |
259 | 62 | createSystemZMCRegisterInfo); |
260 | | |
261 | | // Register the MCSubtargetInfo. |
262 | 62 | TargetRegistry::RegisterMCSubtargetInfo(getTheSystemZTarget(), |
263 | 62 | createSystemZMCSubtargetInfo); |
264 | | |
265 | | // Register the MCAsmBackend. |
266 | 62 | TargetRegistry::RegisterMCAsmBackend(getTheSystemZTarget(), |
267 | 62 | createSystemZMCAsmBackend); |
268 | | |
269 | | // Register the MCInstPrinter. |
270 | 62 | TargetRegistry::RegisterMCInstPrinter(getTheSystemZTarget(), |
271 | 62 | createSystemZMCInstPrinter); |
272 | | |
273 | | // Register the asm streamer. |
274 | 62 | TargetRegistry::RegisterAsmTargetStreamer(getTheSystemZTarget(), |
275 | 62 | createAsmTargetStreamer); |
276 | | |
277 | | // Register the obj streamer |
278 | 62 | TargetRegistry::RegisterObjectTargetStreamer(getTheSystemZTarget(), |
279 | 62 | createObjectTargetStreamer); |
280 | | |
281 | | // Register the null streamer |
282 | 62 | TargetRegistry::RegisterNullTargetStreamer(getTheSystemZTarget(), |
283 | 62 | createNullTargetStreamer); |
284 | 62 | } |