1 //===-- TargetParser - Parser for target features ---------------*- C++ -*-===//
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 implements a target parser to recognise hardware features such as
10 // FPU/CPU/ARCH names as well as specific support such as HDIV, etc.
11 //
12 //===----------------------------------------------------------------------===//
13
14 #include "llvm/Support/TargetParser.h"
15 #include "llvm/ADT/ArrayRef.h"
16 #include "llvm/ADT/SmallString.h"
17 #include "llvm/ADT/StringSwitch.h"
18 #include "llvm/ADT/Twine.h"
19 #include "llvm/Support/ARMBuildAttributes.h"
20
21 using namespace llvm;
22 using namespace AMDGPU;
23
24 namespace {
25
26 struct GPUInfo {
27 StringLiteral Name;
28 StringLiteral CanonicalName;
29 AMDGPU::GPUKind Kind;
30 unsigned Features;
31 };
32
33 constexpr GPUInfo R600GPUs[] = {
34 // Name Canonical Kind Features
35 // Name
36 {{"r600"}, {"r600"}, GK_R600, FEATURE_NONE },
37 {{"rv630"}, {"r600"}, GK_R600, FEATURE_NONE },
38 {{"rv635"}, {"r600"}, GK_R600, FEATURE_NONE },
39 {{"r630"}, {"r630"}, GK_R630, FEATURE_NONE },
40 {{"rs780"}, {"rs880"}, GK_RS880, FEATURE_NONE },
41 {{"rs880"}, {"rs880"}, GK_RS880, FEATURE_NONE },
42 {{"rv610"}, {"rs880"}, GK_RS880, FEATURE_NONE },
43 {{"rv620"}, {"rs880"}, GK_RS880, FEATURE_NONE },
44 {{"rv670"}, {"rv670"}, GK_RV670, FEATURE_NONE },
45 {{"rv710"}, {"rv710"}, GK_RV710, FEATURE_NONE },
46 {{"rv730"}, {"rv730"}, GK_RV730, FEATURE_NONE },
47 {{"rv740"}, {"rv770"}, GK_RV770, FEATURE_NONE },
48 {{"rv770"}, {"rv770"}, GK_RV770, FEATURE_NONE },
49 {{"cedar"}, {"cedar"}, GK_CEDAR, FEATURE_NONE },
50 {{"palm"}, {"cedar"}, GK_CEDAR, FEATURE_NONE },
51 {{"cypress"}, {"cypress"}, GK_CYPRESS, FEATURE_FMA },
52 {{"hemlock"}, {"cypress"}, GK_CYPRESS, FEATURE_FMA },
53 {{"juniper"}, {"juniper"}, GK_JUNIPER, FEATURE_NONE },
54 {{"redwood"}, {"redwood"}, GK_REDWOOD, FEATURE_NONE },
55 {{"sumo"}, {"sumo"}, GK_SUMO, FEATURE_NONE },
56 {{"sumo2"}, {"sumo"}, GK_SUMO, FEATURE_NONE },
57 {{"barts"}, {"barts"}, GK_BARTS, FEATURE_NONE },
58 {{"caicos"}, {"caicos"}, GK_CAICOS, FEATURE_NONE },
59 {{"aruba"}, {"cayman"}, GK_CAYMAN, FEATURE_FMA },
60 {{"cayman"}, {"cayman"}, GK_CAYMAN, FEATURE_FMA },
61 {{"turks"}, {"turks"}, GK_TURKS, FEATURE_NONE }
62 };
63
64 // This table should be sorted by the value of GPUKind
65 // Don't bother listing the implicitly true features
66 constexpr GPUInfo AMDGCNGPUs[] = {
67 // Name Canonical Kind Features
68 // Name
69 {{"gfx600"}, {"gfx600"}, GK_GFX600, FEATURE_FAST_FMA_F32},
70 {{"tahiti"}, {"gfx600"}, GK_GFX600, FEATURE_FAST_FMA_F32},
71 {{"gfx601"}, {"gfx601"}, GK_GFX601, FEATURE_NONE},
72 {{"pitcairn"}, {"gfx601"}, GK_GFX601, FEATURE_NONE},
73 {{"verde"}, {"gfx601"}, GK_GFX601, FEATURE_NONE},
74 {{"gfx602"}, {"gfx602"}, GK_GFX602, FEATURE_NONE},
75 {{"hainan"}, {"gfx602"}, GK_GFX602, FEATURE_NONE},
76 {{"oland"}, {"gfx602"}, GK_GFX602, FEATURE_NONE},
77 {{"gfx700"}, {"gfx700"}, GK_GFX700, FEATURE_NONE},
78 {{"kaveri"}, {"gfx700"}, GK_GFX700, FEATURE_NONE},
79 {{"gfx701"}, {"gfx701"}, GK_GFX701, FEATURE_FAST_FMA_F32},
80 {{"hawaii"}, {"gfx701"}, GK_GFX701, FEATURE_FAST_FMA_F32},
81 {{"gfx702"}, {"gfx702"}, GK_GFX702, FEATURE_FAST_FMA_F32},
82 {{"gfx703"}, {"gfx703"}, GK_GFX703, FEATURE_NONE},
83 {{"kabini"}, {"gfx703"}, GK_GFX703, FEATURE_NONE},
84 {{"mullins"}, {"gfx703"}, GK_GFX703, FEATURE_NONE},
85 {{"gfx704"}, {"gfx704"}, GK_GFX704, FEATURE_NONE},
86 {{"bonaire"}, {"gfx704"}, GK_GFX704, FEATURE_NONE},
87 {{"gfx705"}, {"gfx705"}, GK_GFX705, FEATURE_NONE},
88 {{"gfx801"}, {"gfx801"}, GK_GFX801, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK},
89 {{"carrizo"}, {"gfx801"}, GK_GFX801, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK},
90 {{"gfx802"}, {"gfx802"}, GK_GFX802, FEATURE_FAST_DENORMAL_F32},
91 {{"iceland"}, {"gfx802"}, GK_GFX802, FEATURE_FAST_DENORMAL_F32},
92 {{"tonga"}, {"gfx802"}, GK_GFX802, FEATURE_FAST_DENORMAL_F32},
93 {{"gfx803"}, {"gfx803"}, GK_GFX803, FEATURE_FAST_DENORMAL_F32},
94 {{"fiji"}, {"gfx803"}, GK_GFX803, FEATURE_FAST_DENORMAL_F32},
95 {{"polaris10"}, {"gfx803"}, GK_GFX803, FEATURE_FAST_DENORMAL_F32},
96 {{"polaris11"}, {"gfx803"}, GK_GFX803, FEATURE_FAST_DENORMAL_F32},
97 {{"gfx805"}, {"gfx805"}, GK_GFX805, FEATURE_FAST_DENORMAL_F32},
98 {{"tongapro"}, {"gfx805"}, GK_GFX805, FEATURE_FAST_DENORMAL_F32},
99 {{"gfx810"}, {"gfx810"}, GK_GFX810, FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK},
100 {{"stoney"}, {"gfx810"}, GK_GFX810, FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK},
101 {{"gfx900"}, {"gfx900"}, GK_GFX900, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK},
102 {{"gfx902"}, {"gfx902"}, GK_GFX902, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK},
103 {{"gfx904"}, {"gfx904"}, GK_GFX904, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK},
104 {{"gfx906"}, {"gfx906"}, GK_GFX906, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK|FEATURE_SRAMECC},
105 {{"gfx908"}, {"gfx908"}, GK_GFX908, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK|FEATURE_SRAMECC},
106 {{"gfx909"}, {"gfx909"}, GK_GFX909, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK},
107 {{"gfx90a"}, {"gfx90a"}, GK_GFX90A, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK|FEATURE_SRAMECC},
108 {{"gfx90c"}, {"gfx90c"}, GK_GFX90C, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_XNACK},
109 {{"gfx1010"}, {"gfx1010"}, GK_GFX1010, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_WAVE32|FEATURE_XNACK},
110 {{"gfx1011"}, {"gfx1011"}, GK_GFX1011, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_WAVE32|FEATURE_XNACK},
111 {{"gfx1012"}, {"gfx1012"}, GK_GFX1012, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_WAVE32|FEATURE_XNACK},
112 {{"gfx1030"}, {"gfx1030"}, GK_GFX1030, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_WAVE32},
113 {{"gfx1031"}, {"gfx1031"}, GK_GFX1031, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_WAVE32},
114 {{"gfx1032"}, {"gfx1032"}, GK_GFX1032, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_WAVE32},
115 {{"gfx1033"}, {"gfx1033"}, GK_GFX1033, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_WAVE32},
116 {{"gfx1034"}, {"gfx1034"}, GK_GFX1034, FEATURE_FAST_FMA_F32|FEATURE_FAST_DENORMAL_F32|FEATURE_WAVE32},
117 };
118
getArchEntry(AMDGPU::GPUKind AK,ArrayRef<GPUInfo> Table)119 const GPUInfo *getArchEntry(AMDGPU::GPUKind AK, ArrayRef<GPUInfo> Table) {
120 GPUInfo Search = { {""}, {""}, AK, AMDGPU::FEATURE_NONE };
121
122 auto I =
123 llvm::lower_bound(Table, Search, [](const GPUInfo &A, const GPUInfo &B) {
124 return A.Kind < B.Kind;
125 });
126
127 if (I == Table.end())
128 return nullptr;
129 return I;
130 }
131
132 } // namespace
133
getArchNameAMDGCN(GPUKind AK)134 StringRef llvm::AMDGPU::getArchNameAMDGCN(GPUKind AK) {
135 if (const auto *Entry = getArchEntry(AK, AMDGCNGPUs))
136 return Entry->CanonicalName;
137 return "";
138 }
139
getArchNameR600(GPUKind AK)140 StringRef llvm::AMDGPU::getArchNameR600(GPUKind AK) {
141 if (const auto *Entry = getArchEntry(AK, R600GPUs))
142 return Entry->CanonicalName;
143 return "";
144 }
145
parseArchAMDGCN(StringRef CPU)146 AMDGPU::GPUKind llvm::AMDGPU::parseArchAMDGCN(StringRef CPU) {
147 for (const auto &C : AMDGCNGPUs) {
148 if (CPU == C.Name)
149 return C.Kind;
150 }
151
152 return AMDGPU::GPUKind::GK_NONE;
153 }
154
parseArchR600(StringRef CPU)155 AMDGPU::GPUKind llvm::AMDGPU::parseArchR600(StringRef CPU) {
156 for (const auto &C : R600GPUs) {
157 if (CPU == C.Name)
158 return C.Kind;
159 }
160
161 return AMDGPU::GPUKind::GK_NONE;
162 }
163
getArchAttrAMDGCN(GPUKind AK)164 unsigned AMDGPU::getArchAttrAMDGCN(GPUKind AK) {
165 if (const auto *Entry = getArchEntry(AK, AMDGCNGPUs))
166 return Entry->Features;
167 return FEATURE_NONE;
168 }
169
getArchAttrR600(GPUKind AK)170 unsigned AMDGPU::getArchAttrR600(GPUKind AK) {
171 if (const auto *Entry = getArchEntry(AK, R600GPUs))
172 return Entry->Features;
173 return FEATURE_NONE;
174 }
175
fillValidArchListAMDGCN(SmallVectorImpl<StringRef> & Values)176 void AMDGPU::fillValidArchListAMDGCN(SmallVectorImpl<StringRef> &Values) {
177 // XXX: Should this only report unique canonical names?
178 for (const auto &C : AMDGCNGPUs)
179 Values.push_back(C.Name);
180 }
181
fillValidArchListR600(SmallVectorImpl<StringRef> & Values)182 void AMDGPU::fillValidArchListR600(SmallVectorImpl<StringRef> &Values) {
183 for (const auto &C : R600GPUs)
184 Values.push_back(C.Name);
185 }
186
getIsaVersion(StringRef GPU)187 AMDGPU::IsaVersion AMDGPU::getIsaVersion(StringRef GPU) {
188 AMDGPU::GPUKind AK = parseArchAMDGCN(GPU);
189 if (AK == AMDGPU::GPUKind::GK_NONE) {
190 if (GPU == "generic-hsa")
191 return {7, 0, 0};
192 if (GPU == "generic")
193 return {6, 0, 0};
194 return {0, 0, 0};
195 }
196
197 switch (AK) {
198 case GK_GFX600: return {6, 0, 0};
199 case GK_GFX601: return {6, 0, 1};
200 case GK_GFX602: return {6, 0, 2};
201 case GK_GFX700: return {7, 0, 0};
202 case GK_GFX701: return {7, 0, 1};
203 case GK_GFX702: return {7, 0, 2};
204 case GK_GFX703: return {7, 0, 3};
205 case GK_GFX704: return {7, 0, 4};
206 case GK_GFX705: return {7, 0, 5};
207 case GK_GFX801: return {8, 0, 1};
208 case GK_GFX802: return {8, 0, 2};
209 case GK_GFX803: return {8, 0, 3};
210 case GK_GFX805: return {8, 0, 5};
211 case GK_GFX810: return {8, 1, 0};
212 case GK_GFX900: return {9, 0, 0};
213 case GK_GFX902: return {9, 0, 2};
214 case GK_GFX904: return {9, 0, 4};
215 case GK_GFX906: return {9, 0, 6};
216 case GK_GFX908: return {9, 0, 8};
217 case GK_GFX909: return {9, 0, 9};
218 case GK_GFX90A: return {9, 0, 10};
219 case GK_GFX90C: return {9, 0, 12};
220 case GK_GFX1010: return {10, 1, 0};
221 case GK_GFX1011: return {10, 1, 1};
222 case GK_GFX1012: return {10, 1, 2};
223 case GK_GFX1030: return {10, 3, 0};
224 case GK_GFX1031: return {10, 3, 1};
225 case GK_GFX1032: return {10, 3, 2};
226 case GK_GFX1033: return {10, 3, 3};
227 case GK_GFX1034: return {10, 3, 4};
228 default: return {0, 0, 0};
229 }
230 }
231
getCanonicalArchName(const Triple & T,StringRef Arch)232 StringRef AMDGPU::getCanonicalArchName(const Triple &T, StringRef Arch) {
233 assert(T.isAMDGPU());
234 auto ProcKind = T.isAMDGCN() ? parseArchAMDGCN(Arch) : parseArchR600(Arch);
235 if (ProcKind == GK_NONE)
236 return StringRef();
237
238 return T.isAMDGCN() ? getArchNameAMDGCN(ProcKind) : getArchNameR600(ProcKind);
239 }
240
241 namespace llvm {
242 namespace RISCV {
243
244 struct CPUInfo {
245 StringLiteral Name;
246 CPUKind Kind;
247 unsigned Features;
248 StringLiteral DefaultMarch;
is64Bitllvm::RISCV::CPUInfo249 bool is64Bit() const { return (Features & FK_64BIT); }
250 };
251
252 constexpr CPUInfo RISCVCPUInfo[] = {
253 #define PROC(ENUM, NAME, FEATURES, DEFAULT_MARCH) \
254 {NAME, CK_##ENUM, FEATURES, DEFAULT_MARCH},
255 #include "llvm/Support/RISCVTargetParser.def"
256 };
257
checkCPUKind(CPUKind Kind,bool IsRV64)258 bool checkCPUKind(CPUKind Kind, bool IsRV64) {
259 if (Kind == CK_INVALID)
260 return false;
261 return RISCVCPUInfo[static_cast<unsigned>(Kind)].is64Bit() == IsRV64;
262 }
263
checkTuneCPUKind(CPUKind Kind,bool IsRV64)264 bool checkTuneCPUKind(CPUKind Kind, bool IsRV64) {
265 if (Kind == CK_INVALID)
266 return false;
267 return RISCVCPUInfo[static_cast<unsigned>(Kind)].is64Bit() == IsRV64;
268 }
269
parseCPUKind(StringRef CPU)270 CPUKind parseCPUKind(StringRef CPU) {
271 return llvm::StringSwitch<CPUKind>(CPU)
272 #define PROC(ENUM, NAME, FEATURES, DEFAULT_MARCH) .Case(NAME, CK_##ENUM)
273 #include "llvm/Support/RISCVTargetParser.def"
274 .Default(CK_INVALID);
275 }
276
resolveTuneCPUAlias(StringRef TuneCPU,bool IsRV64)277 StringRef resolveTuneCPUAlias(StringRef TuneCPU, bool IsRV64) {
278 return llvm::StringSwitch<StringRef>(TuneCPU)
279 #define PROC_ALIAS(NAME, RV32, RV64) .Case(NAME, IsRV64 ? StringRef(RV64) : StringRef(RV32))
280 #include "llvm/Support/RISCVTargetParser.def"
281 .Default(TuneCPU);
282 }
283
parseTuneCPUKind(StringRef TuneCPU,bool IsRV64)284 CPUKind parseTuneCPUKind(StringRef TuneCPU, bool IsRV64) {
285 TuneCPU = resolveTuneCPUAlias(TuneCPU, IsRV64);
286
287 return llvm::StringSwitch<CPUKind>(TuneCPU)
288 #define PROC(ENUM, NAME, FEATURES, DEFAULT_MARCH) .Case(NAME, CK_##ENUM)
289 #include "llvm/Support/RISCVTargetParser.def"
290 .Default(CK_INVALID);
291 }
292
getMArchFromMcpu(StringRef CPU)293 StringRef getMArchFromMcpu(StringRef CPU) {
294 CPUKind Kind = parseCPUKind(CPU);
295 return RISCVCPUInfo[static_cast<unsigned>(Kind)].DefaultMarch;
296 }
297
fillValidCPUArchList(SmallVectorImpl<StringRef> & Values,bool IsRV64)298 void fillValidCPUArchList(SmallVectorImpl<StringRef> &Values, bool IsRV64) {
299 for (const auto &C : RISCVCPUInfo) {
300 if (C.Kind != CK_INVALID && IsRV64 == C.is64Bit())
301 Values.emplace_back(C.Name);
302 }
303 }
304
fillValidTuneCPUArchList(SmallVectorImpl<StringRef> & Values,bool IsRV64)305 void fillValidTuneCPUArchList(SmallVectorImpl<StringRef> &Values, bool IsRV64) {
306 for (const auto &C : RISCVCPUInfo) {
307 if (C.Kind != CK_INVALID && IsRV64 == C.is64Bit())
308 Values.emplace_back(C.Name);
309 }
310 #define PROC_ALIAS(NAME, RV32, RV64) Values.emplace_back(StringRef(NAME));
311 #include "llvm/Support/RISCVTargetParser.def"
312 }
313
314 // Get all features except standard extension feature
getCPUFeaturesExceptStdExt(CPUKind Kind,std::vector<StringRef> & Features)315 bool getCPUFeaturesExceptStdExt(CPUKind Kind,
316 std::vector<StringRef> &Features) {
317 unsigned CPUFeatures = RISCVCPUInfo[static_cast<unsigned>(Kind)].Features;
318
319 if (CPUFeatures == FK_INVALID)
320 return false;
321
322 if (CPUFeatures & FK_64BIT)
323 Features.push_back("+64bit");
324 else
325 Features.push_back("-64bit");
326
327 return true;
328 }
329
330 } // namespace RISCV
331 } // namespace llvm
332