1 //===-- AArch64TargetParser - Parser for AArch64 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 AArch64 hardware features
10 // such as FPU/CPU/ARCH and extension names.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef LLVM_TARGETPARSER_AARCH64TARGETPARSER_H
15 #define LLVM_TARGETPARSER_AARCH64TARGETPARSER_H
16 
17 #include "llvm/ADT/ArrayRef.h"
18 #include "llvm/ADT/Bitset.h"
19 #include "llvm/ADT/StringMap.h"
20 #include "llvm/ADT/StringRef.h"
21 #include "llvm/Support/VersionTuple.h"
22 #include <array>
23 #include <vector>
24 
25 namespace llvm {
26 
27 class Triple;
28 
29 namespace AArch64 {
30 // Function Multi Versioning CPU features. They must be kept in sync with
31 // compiler-rt enum CPUFeatures in lib/builtins/cpu_model.c with FEAT_MAX as
32 // sentinel.
33 enum CPUFeatures {
34   FEAT_RNG,
35   FEAT_FLAGM,
36   FEAT_FLAGM2,
37   FEAT_FP16FML,
38   FEAT_DOTPROD,
39   FEAT_SM4,
40   FEAT_RDM,
41   FEAT_LSE,
42   FEAT_FP,
43   FEAT_SIMD,
44   FEAT_CRC,
45   FEAT_SHA1,
46   FEAT_SHA2,
47   FEAT_SHA3,
48   FEAT_AES,
49   FEAT_PMULL,
50   FEAT_FP16,
51   FEAT_DIT,
52   FEAT_DPB,
53   FEAT_DPB2,
54   FEAT_JSCVT,
55   FEAT_FCMA,
56   FEAT_RCPC,
57   FEAT_RCPC2,
58   FEAT_FRINTTS,
59   FEAT_DGH,
60   FEAT_I8MM,
61   FEAT_BF16,
62   FEAT_EBF16,
63   FEAT_RPRES,
64   FEAT_SVE,
65   FEAT_SVE_BF16,
66   FEAT_SVE_EBF16,
67   FEAT_SVE_I8MM,
68   FEAT_SVE_F32MM,
69   FEAT_SVE_F64MM,
70   FEAT_SVE2,
71   FEAT_SVE_AES,
72   FEAT_SVE_PMULL128,
73   FEAT_SVE_BITPERM,
74   FEAT_SVE_SHA3,
75   FEAT_SVE_SM4,
76   FEAT_SME,
77   FEAT_MEMTAG,
78   FEAT_MEMTAG2,
79   FEAT_MEMTAG3,
80   FEAT_SB,
81   FEAT_PREDRES,
82   FEAT_SSBS,
83   FEAT_SSBS2,
84   FEAT_BTI,
85   FEAT_LS64,
86   FEAT_LS64_V,
87   FEAT_LS64_ACCDATA,
88   FEAT_WFXT,
89   FEAT_SME_F64,
90   FEAT_SME_I64,
91   FEAT_SME2,
92   FEAT_RCPC3,
93   FEAT_MAX,
94   FEAT_EXT = 62,
95   FEAT_INIT
96 };
97 
98 static_assert(FEAT_MAX < 62,
99               "Number of features in CPUFeatures are limited to 62 entries");
100 
101 // Arch extension modifiers for CPUs. These are labelled with their Arm ARM
102 // feature name (though the canonical reference for those is AArch64.td)
103 // clang-format off
104 enum ArchExtKind : unsigned {
105   AEK_NONE =          1,
106   AEK_CRC =           2,  // FEAT_CRC32
107   AEK_CRYPTO =        3,
108   AEK_FP =            4,  // FEAT_FP
109   AEK_SIMD =          5,  // FEAT_AdvSIMD
110   AEK_FP16 =          6,  // FEAT_FP16
111   AEK_PROFILE =       7,  // FEAT_SPE
112   AEK_RAS =           8,  // FEAT_RAS, FEAT_RASv1p1
113   AEK_LSE =           9,  // FEAT_LSE
114   AEK_SVE =           10,  // FEAT_SVE
115   AEK_DOTPROD =       11, // FEAT_DotProd
116   AEK_RCPC =          12, // FEAT_LRCPC
117   AEK_RDM =           13, // FEAT_RDM
118   AEK_SM4 =           14, // FEAT_SM4, FEAT_SM3
119   AEK_SHA3 =          15, // FEAT_SHA3, FEAT_SHA512
120   AEK_SHA2 =          16, // FEAT_SHA1, FEAT_SHA256
121   AEK_AES =           17, // FEAT_AES, FEAT_PMULL
122   AEK_FP16FML =       18, // FEAT_FHM
123   AEK_RAND =          19, // FEAT_RNG
124   AEK_MTE =           20, // FEAT_MTE, FEAT_MTE2
125   AEK_SSBS =          21, // FEAT_SSBS, FEAT_SSBS2
126   AEK_SB =            22, // FEAT_SB
127   AEK_PREDRES =       23, // FEAT_SPECRES
128   AEK_SVE2 =          24, // FEAT_SVE2
129   AEK_SVE2AES =       25, // FEAT_SVE_AES, FEAT_SVE_PMULL128
130   AEK_SVE2SM4 =       26, // FEAT_SVE_SM4
131   AEK_SVE2SHA3 =      27, // FEAT_SVE_SHA3
132   AEK_SVE2BITPERM =   28, // FEAT_SVE_BitPerm
133   AEK_TME =           29, // FEAT_TME
134   AEK_BF16 =          30, // FEAT_BF16
135   AEK_I8MM =          31, // FEAT_I8MM
136   AEK_F32MM =         32, // FEAT_F32MM
137   AEK_F64MM =         33, // FEAT_F64MM
138   AEK_LS64 =          34, // FEAT_LS64, FEAT_LS64_V, FEAT_LS64_ACCDATA
139   AEK_BRBE =          35, // FEAT_BRBE
140   AEK_PAUTH =         36, // FEAT_PAuth
141   AEK_FLAGM =         37, // FEAT_FlagM
142   AEK_SME =           38, // FEAT_SME
143   AEK_SMEF64F64 =     39, // FEAT_SME_F64F64
144   AEK_SMEI16I64 =     40, // FEAT_SME_I16I64
145   AEK_HBC =           41, // FEAT_HBC
146   AEK_MOPS =          42, // FEAT_MOPS
147   AEK_PERFMON =       43, // FEAT_PMUv3
148   AEK_SME2 =          44, // FEAT_SME2
149   AEK_SVE2p1 =        45, // FEAT_SVE2p1
150   AEK_SME2p1 =        46, // FEAT_SME2p1
151   AEK_B16B16 =        47, // FEAT_B16B16
152   AEK_SMEF16F16 =     48, // FEAT_SMEF16F16
153   AEK_CSSC =          49, // FEAT_CSSC
154   AEK_RCPC3 =         50, // FEAT_LRCPC3
155   AEK_THE =           51, // FEAT_THE
156   AEK_D128 =          52, // FEAT_D128
157   AEK_LSE128 =        53, // FEAT_LSE128
158   AEK_SPECRES2 =      54, // FEAT_SPECRES2
159   AEK_RASv2 =         55, // FEAT_RASv2
160   AEK_ITE =           56, // FEAT_ITE
161   AEK_GCS =           57, // FEAT_GCS
162   AEK_FPMR =          58, // FEAT_FPMR
163   AEK_FP8 =           59, // FEAT_FP8
164   AEK_FAMINMAX =      60, // FEAT_FAMINMAX
165   AEK_FP8FMA =        61, // FEAT_FP8FMA
166   AEK_SSVE_FP8FMA =   62, // FEAT_SSVE_FP8FMA
167   AEK_FP8DOT2 =       63, // FEAT_FP8DOT2
168   AEK_SSVE_FP8DOT2 =  64, // FEAT_SSVE_FP8DOT2
169   AEK_FP8DOT4 =       65, // FEAT_FP8DOT4
170   AEK_SSVE_FP8DOT4 =  66, // FEAT_SSVE_FP8DOT4
171   AEK_LUT =           67, // FEAT_LUT
172   AEK_SME_LUTv2 =     68, // FEAT_SME_LUTv2
173   AEK_SMEF8F16 =      69, // FEAT_SME_F8F16
174   AEK_SMEF8F32 =      70, // FEAT_SME_F8F32
175   AEK_SMEFA64 =       71, // FEAT_SME_FA64
176   AEK_NUM_EXTENSIONS
177 };
178 using ExtensionBitset = Bitset<AEK_NUM_EXTENSIONS>;
179 // clang-format on
180 
181 // Represents an extension that can be enabled with -march=<arch>+<extension>.
182 // Typically these correspond to Arm Architecture extensions, unlike
183 // SubtargetFeature which may represent either an actual extension or some
184 // internal LLVM property.
185 struct ExtensionInfo {
186   StringRef Name;              // Human readable name, e.g. "profile".
187   ArchExtKind ID;              // Corresponding to the ArchExtKind, this
188                                // extensions representation in the bitfield.
189   StringRef Feature;           // -mattr enable string, e.g. "+spe"
190   StringRef NegFeature;        // -mattr disable string, e.g. "-spe"
191   CPUFeatures CPUFeature;      // Function Multi Versioning (FMV) bitfield value
192                                // set in __aarch64_cpu_features
193   StringRef DependentFeatures; // FMV enabled features string,
194                                // e.g. "+dotprod,+fp-armv8,+neon"
195   unsigned FmvPriority;        // FMV feature priority
196   static constexpr unsigned MaxFMVPriority =
197       1000; // Maximum priority for FMV feature
198 };
199 
200 // NOTE: If adding a new extension here, consider adding it to ExtensionMap
201 // in AArch64AsmParser too, if supported as an extension name by binutils.
202 // clang-format off
203 inline constexpr ExtensionInfo Extensions[] = {
204     {"aes", AArch64::AEK_AES, "+aes", "-aes", FEAT_AES, "+fp-armv8,+neon", 150},
205     {"b16b16", AArch64::AEK_B16B16, "+b16b16", "-b16b16", FEAT_INIT, "", 0},
206     {"bf16", AArch64::AEK_BF16, "+bf16", "-bf16", FEAT_BF16, "+bf16", 280},
207     {"brbe", AArch64::AEK_BRBE, "+brbe", "-brbe", FEAT_INIT, "", 0},
208     {"bti", AArch64::AEK_NONE, {}, {}, FEAT_BTI, "+bti", 510},
209     {"crc", AArch64::AEK_CRC, "+crc", "-crc", FEAT_CRC, "+crc", 110},
210     {"crypto", AArch64::AEK_CRYPTO, "+crypto", "-crypto", FEAT_INIT, "+aes,+sha2", 0},
211     {"cssc", AArch64::AEK_CSSC, "+cssc", "-cssc", FEAT_INIT, "", 0},
212     {"d128", AArch64::AEK_D128, "+d128", "-d128", FEAT_INIT, "", 0},
213     {"dgh", AArch64::AEK_NONE, {}, {}, FEAT_DGH, "", 260},
214     {"dit", AArch64::AEK_NONE, {}, {}, FEAT_DIT, "+dit", 180},
215     {"dotprod", AArch64::AEK_DOTPROD, "+dotprod", "-dotprod", FEAT_DOTPROD, "+dotprod,+fp-armv8,+neon", 50},
216     {"dpb", AArch64::AEK_NONE, {}, {}, FEAT_DPB, "+ccpp", 190},
217     {"dpb2", AArch64::AEK_NONE, {}, {}, FEAT_DPB2, "+ccpp,+ccdp", 200},
218     {"ebf16", AArch64::AEK_NONE, {}, {}, FEAT_EBF16, "+bf16", 290},
219     {"f32mm", AArch64::AEK_F32MM, "+f32mm", "-f32mm", FEAT_SVE_F32MM, "+sve,+f32mm,+fullfp16,+fp-armv8,+neon", 350},
220     {"f64mm", AArch64::AEK_F64MM, "+f64mm", "-f64mm", FEAT_SVE_F64MM, "+sve,+f64mm,+fullfp16,+fp-armv8,+neon", 360},
221     {"fcma", AArch64::AEK_NONE, {}, {}, FEAT_FCMA, "+fp-armv8,+neon,+complxnum", 220},
222     {"flagm", AArch64::AEK_FLAGM, "+flagm", "-flagm", FEAT_FLAGM, "+flagm", 20},
223     {"flagm2", AArch64::AEK_NONE, {}, {}, FEAT_FLAGM2, "+flagm,+altnzcv", 30},
224     {"fp", AArch64::AEK_FP, "+fp-armv8", "-fp-armv8", FEAT_FP, "+fp-armv8,+neon", 90},
225     {"fp16", AArch64::AEK_FP16, "+fullfp16", "-fullfp16", FEAT_FP16, "+fullfp16,+fp-armv8,+neon", 170},
226     {"fp16fml", AArch64::AEK_FP16FML, "+fp16fml", "-fp16fml", FEAT_FP16FML, "+fp16fml,+fullfp16,+fp-armv8,+neon", 40},
227     {"frintts", AArch64::AEK_NONE, {}, {}, FEAT_FRINTTS, "+fptoint", 250},
228     {"hbc", AArch64::AEK_HBC, "+hbc", "-hbc", FEAT_INIT, "", 0},
229     {"i8mm", AArch64::AEK_I8MM, "+i8mm", "-i8mm", FEAT_I8MM, "+i8mm", 270},
230     {"ite", AArch64::AEK_ITE, "+ite", "-ite", FEAT_INIT, "", 0},
231     {"jscvt", AArch64::AEK_NONE, {}, {}, FEAT_JSCVT, "+fp-armv8,+neon,+jsconv", 210},
232     {"ls64_accdata", AArch64::AEK_NONE, {}, {}, FEAT_LS64_ACCDATA, "+ls64", 540},
233     {"ls64_v", AArch64::AEK_NONE, {}, {}, FEAT_LS64_V, "", 530},
234     {"ls64", AArch64::AEK_LS64, "+ls64", "-ls64", FEAT_LS64, "", 520},
235     {"lse", AArch64::AEK_LSE, "+lse", "-lse", FEAT_LSE, "+lse", 80},
236     {"lse128", AArch64::AEK_LSE128, "+lse128", "-lse128", FEAT_INIT, "", 0},
237     {"memtag", AArch64::AEK_MTE, "+mte", "-mte", FEAT_MEMTAG, "", 440},
238     {"memtag2", AArch64::AEK_NONE, {}, {}, FEAT_MEMTAG2, "+mte", 450},
239     {"memtag3", AArch64::AEK_NONE, {}, {}, FEAT_MEMTAG3, "+mte", 460},
240     {"mops", AArch64::AEK_MOPS, "+mops", "-mops", FEAT_INIT, "", 0},
241     {"pauth", AArch64::AEK_PAUTH, "+pauth", "-pauth", FEAT_INIT, "", 0},
242     {"pmull", AArch64::AEK_NONE, {}, {}, FEAT_PMULL, "+aes,+fp-armv8,+neon", 160},
243     {"pmuv3", AArch64::AEK_PERFMON, "+perfmon", "-perfmon", FEAT_INIT, "", 0},
244     {"predres", AArch64::AEK_PREDRES, "+predres", "-predres", FEAT_PREDRES, "+predres", 480},
245     {"predres2", AArch64::AEK_SPECRES2, "+specres2", "-specres2", FEAT_INIT, "", 0},
246     {"profile", AArch64::AEK_PROFILE, "+spe", "-spe", FEAT_INIT, "", 0},
247     {"ras", AArch64::AEK_RAS, "+ras", "-ras", FEAT_INIT, "", 0},
248     {"rasv2", AArch64::AEK_RASv2, "+rasv2", "-rasv2", FEAT_INIT, "", 0},
249     {"rcpc", AArch64::AEK_RCPC, "+rcpc", "-rcpc", FEAT_RCPC, "+rcpc", 230},
250     {"rcpc2", AArch64::AEK_NONE, {}, {}, FEAT_RCPC2, "+rcpc", 240},
251     {"rcpc3", AArch64::AEK_RCPC3, "+rcpc3", "-rcpc3", FEAT_RCPC3, "+rcpc,+rcpc3", 241},
252     {"rdm", AArch64::AEK_RDM, "+rdm", "-rdm", FEAT_RDM, "+rdm,+fp-armv8,+neon", 70},
253     {"rng", AArch64::AEK_RAND, "+rand", "-rand", FEAT_RNG, "+rand", 10},
254     {"rpres", AArch64::AEK_NONE, {}, {}, FEAT_RPRES, "", 300},
255     {"sb", AArch64::AEK_SB, "+sb", "-sb", FEAT_SB, "+sb", 470},
256     {"sha1", AArch64::AEK_NONE, {}, {}, FEAT_SHA1, "+fp-armv8,+neon", 120},
257     {"sha2", AArch64::AEK_SHA2, "+sha2", "-sha2", FEAT_SHA2, "+sha2,+fp-armv8,+neon", 130},
258     {"sha3", AArch64::AEK_SHA3, "+sha3", "-sha3", FEAT_SHA3, "+sha3,+sha2,+fp-armv8,+neon", 140},
259     {"simd", AArch64::AEK_SIMD, "+neon", "-neon", FEAT_SIMD, "+fp-armv8,+neon", 100},
260     {"sm4", AArch64::AEK_SM4, "+sm4", "-sm4", FEAT_SM4, "+sm4,+fp-armv8,+neon", 60},
261     {"sme-f16f16", AArch64::AEK_SMEF16F16, "+sme-f16f16", "-sme-f16f16", FEAT_INIT, "", 0},
262     {"sme-f64f64", AArch64::AEK_SMEF64F64, "+sme-f64f64", "-sme-f64f64", FEAT_SME_F64, "+sme,+sme-f64f64,+bf16", 560},
263     {"sme-i16i64", AArch64::AEK_SMEI16I64, "+sme-i16i64", "-sme-i16i64", FEAT_SME_I64, "+sme,+sme-i16i64,+bf16", 570},
264     {"sme", AArch64::AEK_SME, "+sme", "-sme", FEAT_SME, "+sme,+bf16", 430},
265     {"sme2", AArch64::AEK_SME2, "+sme2", "-sme2", FEAT_SME2, "+sme2,+sme,+bf16", 580},
266     {"sme2p1", AArch64::AEK_SME2p1, "+sme2p1", "-sme2p1", FEAT_INIT, "", 0},
267     {"ssbs", AArch64::AEK_SSBS, "+ssbs", "-ssbs", FEAT_SSBS, "", 490},
268     {"ssbs2", AArch64::AEK_NONE, {}, {}, FEAT_SSBS2, "+ssbs", 500},
269     {"sve-bf16", AArch64::AEK_NONE, {}, {}, FEAT_SVE_BF16, "+sve,+bf16,+fullfp16,+fp-armv8,+neon", 320},
270     {"sve-ebf16", AArch64::AEK_NONE, {}, {}, FEAT_SVE_EBF16, "+sve,+bf16,+fullfp16,+fp-armv8,+neon", 330},
271     {"sve-i8mm", AArch64::AEK_NONE, {}, {}, FEAT_SVE_I8MM, "+sve,+i8mm,+fullfp16,+fp-armv8,+neon", 340},
272     {"sve", AArch64::AEK_SVE, "+sve", "-sve", FEAT_SVE, "+sve,+fullfp16,+fp-armv8,+neon", 310},
273     {"sve2-aes", AArch64::AEK_SVE2AES, "+sve2-aes", "-sve2-aes", FEAT_SVE_AES, "+sve2,+sve,+sve2-aes,+fullfp16,+fp-armv8,+neon", 380},
274     {"sve2-bitperm", AArch64::AEK_SVE2BITPERM, "+sve2-bitperm", "-sve2-bitperm", FEAT_SVE_BITPERM, "+sve2,+sve,+sve2-bitperm,+fullfp16,+fp-armv8,+neon", 400},
275     {"sve2-pmull128", AArch64::AEK_NONE, {}, {}, FEAT_SVE_PMULL128, "+sve2,+sve,+sve2-aes,+fullfp16,+fp-armv8,+neon", 390},
276     {"sve2-sha3", AArch64::AEK_SVE2SHA3, "+sve2-sha3", "-sve2-sha3", FEAT_SVE_SHA3, "+sve2,+sve,+sve2-sha3,+fullfp16,+fp-armv8,+neon", 410},
277     {"sve2-sm4", AArch64::AEK_SVE2SM4, "+sve2-sm4", "-sve2-sm4", FEAT_SVE_SM4, "+sve2,+sve,+sve2-sm4,+fullfp16,+fp-armv8,+neon", 420},
278     {"sve2", AArch64::AEK_SVE2, "+sve2", "-sve2", FEAT_SVE2, "+sve2,+sve,+fullfp16,+fp-armv8,+neon", 370},
279     {"sve2p1", AArch64::AEK_SVE2p1, "+sve2p1", "-sve2p1", FEAT_INIT, "+sve2p1,+sve2,+sve,+fullfp16,+fp-armv8,+neon", 0},
280     {"the", AArch64::AEK_THE, "+the", "-the", FEAT_INIT, "", 0},
281     {"tme", AArch64::AEK_TME, "+tme", "-tme", FEAT_INIT, "", 0},
282     {"wfxt", AArch64::AEK_NONE, {}, {}, FEAT_WFXT, "+wfxt", 550},
283     {"gcs", AArch64::AEK_GCS, "+gcs", "-gcs", FEAT_INIT, "", 0},
284     {"fpmr", AArch64::AEK_FPMR, "+fpmr", "-fpmr", FEAT_INIT, "", 0},
285     {"fp8", AArch64::AEK_FP8, "+fp8", "-fp8", FEAT_INIT, "+fpmr", 0},
286     {"faminmax", AArch64::AEK_FAMINMAX, "+faminmax", "-faminmax", FEAT_INIT, "", 0},
287     {"fp8fma", AArch64::AEK_FP8FMA, "+fp8fma", "-fp8fma", FEAT_INIT, "+fpmr", 0},
288     {"ssve-fp8fma", AArch64::AEK_SSVE_FP8FMA, "+ssve-fp8fma", "-ssve-fp8fma", FEAT_INIT, "+sme2", 0},
289     {"fp8dot2", AArch64::AEK_FP8DOT2, "+fp8dot2", "-fp8dot2", FEAT_INIT, "", 0},
290     {"ssve-fp8dot2", AArch64::AEK_SSVE_FP8DOT2, "+ssve-fp8dot2", "-ssve-fp8dot2", FEAT_INIT, "+sme2", 0},
291     {"fp8dot4", AArch64::AEK_FP8DOT4, "+fp8dot4", "-fp8dot4", FEAT_INIT, "", 0},
292     {"ssve-fp8dot4", AArch64::AEK_SSVE_FP8DOT4, "+ssve-fp8dot4", "-ssve-fp8dot4", FEAT_INIT, "+sme2", 0},
293     {"lut", AArch64::AEK_LUT, "+lut", "-lut", FEAT_INIT, "", 0},
294     {"sme-lutv2", AArch64::AEK_SME_LUTv2, "+sme-lutv2", "-sme-lutv2", FEAT_INIT, "", 0},
295     {"sme-f8f16", AArch64::AEK_SMEF8F16, "+sme-f8f16", "-sme-f8f16", FEAT_INIT, "+sme2,+fp8", 0},
296     {"sme-f8f32", AArch64::AEK_SMEF8F32, "+sme-f8f32", "-sme-f8f32", FEAT_INIT, "+sme2,+fp8", 0},
297     {"sme-fa64",  AArch64::AEK_SMEFA64,  "+sme-fa64", "-sme-fa64",  FEAT_INIT, "", 0},
298     // Special cases
299     {"none", AArch64::AEK_NONE, {}, {}, FEAT_INIT, "", ExtensionInfo::MaxFMVPriority},
300 };
301 // clang-format on
302 
303 enum ArchProfile { AProfile = 'A', RProfile = 'R', InvalidProfile = '?' };
304 
305 // Information about a specific architecture, e.g. V8.1-A
306 struct ArchInfo {
307   VersionTuple Version;  // Architecture version, major + minor.
308   ArchProfile Profile;   // Architecuture profile
309   StringRef Name;        // Human readable name, e.g. "armv8.1-a"
310   StringRef ArchFeature; // Command line feature flag, e.g. +v8a
311   AArch64::ExtensionBitset
312       DefaultExts; // bitfield of default extensions ArchExtKind
313 
314   bool operator==(const ArchInfo &Other) const {
315     return this->Name == Other.Name;
316   }
317   bool operator!=(const ArchInfo &Other) const {
318     return this->Name != Other.Name;
319   }
320 
321   // Defines the following partial order, indicating when an architecture is
322   // a superset of another:
323   //
324   //     v9.4a > v9.3a > v9.3a > v9.3a > v9a;
325   //       v       v       v       v       v
326   //     v8.9a > v8.8a > v8.7a > v8.6a > v8.5a > v8.4a > ... > v8a;
327   //
328   // v8r has no relation to anything. This is used to determine which
329   // features to enable for a given architecture. See
330   // AArch64TargetInfo::setFeatureEnabled.
331   bool implies(const ArchInfo &Other) const {
332     if (this->Profile != Other.Profile)
333       return false; // ARMV8R
334     if (this->Version.getMajor() == Other.Version.getMajor()) {
335       return this->Version > Other.Version;
336     }
337     if (this->Version.getMajor() == 9 && Other.Version.getMajor() == 8) {
338       assert(this->Version.getMinor() && Other.Version.getMinor() &&
339              "AArch64::ArchInfo should have a minor version.");
340       return this->Version.getMinor().value_or(0) + 5 >=
341              Other.Version.getMinor().value_or(0);
342     }
343     return false;
344   }
345 
346   // Return ArchFeature without the leading "+".
347   StringRef getSubArch() const { return ArchFeature.substr(1); }
348 
349   // Search for ArchInfo by SubArch name
350   static std::optional<ArchInfo> findBySubArch(StringRef SubArch);
351 };
352 
353 // clang-format off
354 inline constexpr ArchInfo ARMV8A    = { VersionTuple{8, 0}, AProfile, "armv8-a", "+v8a", (
355                                         AArch64::ExtensionBitset({AArch64::AEK_FP, AArch64::AEK_SIMD})), };
356 inline constexpr ArchInfo ARMV8_1A  = { VersionTuple{8, 1}, AProfile, "armv8.1-a", "+v8.1a", (ARMV8A.DefaultExts |
357                                         AArch64::ExtensionBitset({AArch64::AEK_CRC, AArch64::AEK_LSE, AArch64::AEK_RDM}))};
358 inline constexpr ArchInfo ARMV8_2A  = { VersionTuple{8, 2}, AProfile, "armv8.2-a", "+v8.2a", (ARMV8_1A.DefaultExts |
359                                         AArch64::ExtensionBitset({AArch64::AEK_RAS}))};
360 inline constexpr ArchInfo ARMV8_3A  = { VersionTuple{8, 3}, AProfile, "armv8.3-a", "+v8.3a", (ARMV8_2A.DefaultExts |
361                                         AArch64::ExtensionBitset({AArch64::AEK_RCPC}))};
362 inline constexpr ArchInfo ARMV8_4A  = { VersionTuple{8, 4}, AProfile, "armv8.4-a", "+v8.4a", (ARMV8_3A.DefaultExts |
363                                         AArch64::ExtensionBitset({AArch64::AEK_DOTPROD}))};
364 inline constexpr ArchInfo ARMV8_5A  = { VersionTuple{8, 5}, AProfile, "armv8.5-a", "+v8.5a", (ARMV8_4A.DefaultExts)};
365 inline constexpr ArchInfo ARMV8_6A  = { VersionTuple{8, 6}, AProfile, "armv8.6-a", "+v8.6a", (ARMV8_5A.DefaultExts |
366                                         AArch64::ExtensionBitset({AArch64::AEK_BF16, AArch64::AEK_I8MM}))};
367 inline constexpr ArchInfo ARMV8_7A  = { VersionTuple{8, 7}, AProfile, "armv8.7-a", "+v8.7a", (ARMV8_6A.DefaultExts)};
368 inline constexpr ArchInfo ARMV8_8A  = { VersionTuple{8, 8}, AProfile, "armv8.8-a", "+v8.8a", (ARMV8_7A.DefaultExts |
369                                         AArch64::ExtensionBitset({AArch64::AEK_MOPS, AArch64::AEK_HBC}))};
370 inline constexpr ArchInfo ARMV8_9A  = { VersionTuple{8, 9}, AProfile, "armv8.9-a", "+v8.9a", (ARMV8_8A.DefaultExts |
371                                         AArch64::ExtensionBitset({AArch64::AEK_SPECRES2, AArch64::AEK_CSSC, AArch64::AEK_RASv2}))};
372 inline constexpr ArchInfo ARMV9A    = { VersionTuple{9, 0}, AProfile, "armv9-a", "+v9a", (ARMV8_5A.DefaultExts |
373                                         AArch64::ExtensionBitset({AArch64::AEK_FP16, AArch64::AEK_SVE, AArch64::AEK_SVE2}))};
374 inline constexpr ArchInfo ARMV9_1A  = { VersionTuple{9, 1}, AProfile, "armv9.1-a", "+v9.1a", (ARMV9A.DefaultExts |
375                                         AArch64::ExtensionBitset({AArch64::AEK_BF16, AArch64::AEK_I8MM}))};
376 inline constexpr ArchInfo ARMV9_2A  = { VersionTuple{9, 2}, AProfile, "armv9.2-a", "+v9.2a", (ARMV9_1A.DefaultExts)};
377 inline constexpr ArchInfo ARMV9_3A  = { VersionTuple{9, 3}, AProfile, "armv9.3-a", "+v9.3a", (ARMV9_2A.DefaultExts |
378                                         AArch64::ExtensionBitset({AArch64::AEK_MOPS, AArch64::AEK_HBC}))};
379 inline constexpr ArchInfo ARMV9_4A  = { VersionTuple{9, 4}, AProfile, "armv9.4-a", "+v9.4a", (ARMV9_3A.DefaultExts |
380                                         AArch64::ExtensionBitset({AArch64::AEK_SPECRES2, AArch64::AEK_CSSC, AArch64::AEK_RASv2}))};
381 inline constexpr ArchInfo ARMV9_5A  = { VersionTuple{9, 5}, AProfile, "armv9.5-a", "+v9.5a", (ARMV9_4A.DefaultExts)};
382 // For v8-R, we do not enable crypto and align with GCC that enables a more minimal set of optional architecture extensions.
383 inline constexpr ArchInfo ARMV8R    = { VersionTuple{8, 0}, RProfile, "armv8-r", "+v8r", (ARMV8_5A.DefaultExts |
384                                         AArch64::ExtensionBitset({AArch64::AEK_SSBS,
385                                         AArch64::AEK_FP16, AArch64::AEK_FP16FML, AArch64::AEK_SB}).flip(AArch64::AEK_LSE))};
386 // clang-format on
387 
388 // The set of all architectures
389 static constexpr std::array<const ArchInfo *, 17> ArchInfos = {
390     &ARMV8A,   &ARMV8_1A, &ARMV8_2A, &ARMV8_3A, &ARMV8_4A, &ARMV8_5A,
391     &ARMV8_6A, &ARMV8_7A, &ARMV8_8A, &ARMV8_9A, &ARMV9A,   &ARMV9_1A,
392     &ARMV9_2A, &ARMV9_3A, &ARMV9_4A, &ARMV9_5A, &ARMV8R,
393 };
394 
395 // Details of a specific CPU.
396 struct CpuInfo {
397   StringRef Name; // Name, as written for -mcpu.
398   const ArchInfo &Arch;
399   AArch64::ExtensionBitset
400       DefaultExtensions; // Default extensions for this CPU. These will be
401                          // ORd with the architecture defaults.
402 
403   AArch64::ExtensionBitset getImpliedExtensions() const {
404     AArch64::ExtensionBitset ImpliedExts;
405     ImpliedExts |= DefaultExtensions;
406     ImpliedExts |= Arch.DefaultExts;
407     return ImpliedExts;
408   }
409 };
410 
411 inline constexpr CpuInfo CpuInfos[] = {
412     {"cortex-a34", ARMV8A,
413      (AArch64::ExtensionBitset(
414          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_CRC}))},
415     {"cortex-a35", ARMV8A,
416      (AArch64::ExtensionBitset(
417          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_CRC}))},
418     {"cortex-a53", ARMV8A,
419      (AArch64::ExtensionBitset(
420          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_CRC}))},
421     {"cortex-a55", ARMV8_2A,
422      (AArch64::ExtensionBitset(
423          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_FP16,
424           AArch64::AEK_DOTPROD, AArch64::AEK_RCPC}))},
425     {"cortex-a510", ARMV9A,
426      (AArch64::ExtensionBitset(
427          {AArch64::AEK_BF16, AArch64::AEK_I8MM, AArch64::AEK_SB,
428           AArch64::AEK_PAUTH, AArch64::AEK_MTE, AArch64::AEK_SSBS,
429           AArch64::AEK_SVE, AArch64::AEK_SVE2, AArch64::AEK_SVE2BITPERM,
430           AArch64::AEK_FP16FML}))},
431     {"cortex-a520", ARMV9_2A,
432      (AArch64::ExtensionBitset(
433          {AArch64::AEK_SB, AArch64::AEK_SSBS, AArch64::AEK_MTE,
434           AArch64::AEK_FP16FML, AArch64::AEK_PAUTH, AArch64::AEK_SVE2BITPERM,
435           AArch64::AEK_FLAGM, AArch64::AEK_PERFMON, AArch64::AEK_PREDRES}))},
436     {"cortex-a57", ARMV8A,
437      (AArch64::ExtensionBitset(
438          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_CRC}))},
439     {"cortex-a65", ARMV8_2A,
440      (AArch64::ExtensionBitset(
441          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_DOTPROD,
442           AArch64::AEK_FP16, AArch64::AEK_RCPC, AArch64::AEK_SSBS}))},
443     {"cortex-a65ae", ARMV8_2A,
444      (AArch64::ExtensionBitset(
445          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_DOTPROD,
446           AArch64::AEK_FP16, AArch64::AEK_RCPC, AArch64::AEK_SSBS}))},
447     {"cortex-a72", ARMV8A,
448      (AArch64::ExtensionBitset(
449          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_CRC}))},
450     {"cortex-a73", ARMV8A,
451      (AArch64::ExtensionBitset(
452          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_CRC}))},
453     {"cortex-a75", ARMV8_2A,
454      (AArch64::ExtensionBitset(
455          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_FP16,
456           AArch64::AEK_DOTPROD, AArch64::AEK_RCPC}))},
457     {"cortex-a76", ARMV8_2A,
458      (AArch64::ExtensionBitset(
459          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_FP16,
460           AArch64::AEK_DOTPROD, AArch64::AEK_RCPC, AArch64::AEK_SSBS}))},
461     {"cortex-a76ae", ARMV8_2A,
462      (AArch64::ExtensionBitset(
463          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_FP16,
464           AArch64::AEK_DOTPROD, AArch64::AEK_RCPC, AArch64::AEK_SSBS}))},
465     {"cortex-a77", ARMV8_2A,
466      (AArch64::ExtensionBitset(
467          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_FP16,
468           AArch64::AEK_RCPC, AArch64::AEK_DOTPROD, AArch64::AEK_SSBS}))},
469     {"cortex-a78", ARMV8_2A,
470      (AArch64::ExtensionBitset(
471          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_FP16,
472           AArch64::AEK_DOTPROD, AArch64::AEK_RCPC, AArch64::AEK_SSBS,
473           AArch64::AEK_PROFILE}))},
474     {"cortex-a78c", ARMV8_2A,
475      (AArch64::ExtensionBitset(
476          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_FP16,
477           AArch64::AEK_DOTPROD, AArch64::AEK_RCPC, AArch64::AEK_SSBS,
478           AArch64::AEK_PROFILE, AArch64::AEK_FLAGM, AArch64::AEK_PAUTH,
479           AArch64::AEK_FP16FML}))},
480     {"cortex-a710", ARMV9A,
481      (AArch64::ExtensionBitset(
482          {AArch64::AEK_MTE, AArch64::AEK_PAUTH, AArch64::AEK_FLAGM,
483           AArch64::AEK_SB, AArch64::AEK_I8MM, AArch64::AEK_FP16FML,
484           AArch64::AEK_SVE, AArch64::AEK_SVE2, AArch64::AEK_SVE2BITPERM,
485           AArch64::AEK_BF16}))},
486     {"cortex-a715", ARMV9A,
487      (AArch64::ExtensionBitset(
488          {AArch64::AEK_SB, AArch64::AEK_SSBS, AArch64::AEK_MTE,
489           AArch64::AEK_FP16, AArch64::AEK_FP16FML, AArch64::AEK_PAUTH,
490           AArch64::AEK_I8MM, AArch64::AEK_PREDRES, AArch64::AEK_PERFMON,
491           AArch64::AEK_PROFILE, AArch64::AEK_SVE, AArch64::AEK_SVE2BITPERM,
492           AArch64::AEK_BF16, AArch64::AEK_FLAGM}))},
493     {"cortex-a720", ARMV9_2A,
494      (AArch64::ExtensionBitset(
495          {AArch64::AEK_SB, AArch64::AEK_SSBS, AArch64::AEK_MTE,
496           AArch64::AEK_FP16FML, AArch64::AEK_PAUTH, AArch64::AEK_SVE2BITPERM,
497           AArch64::AEK_FLAGM, AArch64::AEK_PERFMON, AArch64::AEK_PREDRES,
498           AArch64::AEK_PROFILE}))},
499     {"cortex-r82", ARMV8R,
500      (AArch64::ExtensionBitset({AArch64::AEK_LSE}))},
501     {"cortex-x1", ARMV8_2A,
502      (AArch64::ExtensionBitset(
503          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_FP16,
504           AArch64::AEK_DOTPROD, AArch64::AEK_RCPC, AArch64::AEK_SSBS,
505           AArch64::AEK_PROFILE}))},
506     {"cortex-x1c", ARMV8_2A,
507      (AArch64::ExtensionBitset(
508          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_FP16,
509           AArch64::AEK_DOTPROD, AArch64::AEK_RCPC, AArch64::AEK_SSBS,
510           AArch64::AEK_PAUTH, AArch64::AEK_PROFILE}))},
511     {"cortex-x2", ARMV9A,
512      (AArch64::ExtensionBitset(
513          {AArch64::AEK_MTE, AArch64::AEK_BF16, AArch64::AEK_I8MM,
514           AArch64::AEK_PAUTH, AArch64::AEK_SSBS, AArch64::AEK_SB,
515           AArch64::AEK_SVE, AArch64::AEK_SVE2, AArch64::AEK_SVE2BITPERM,
516           AArch64::AEK_FP16FML}))},
517     {"cortex-x3", ARMV9A,
518      (AArch64::ExtensionBitset(
519          {AArch64::AEK_SVE, AArch64::AEK_PERFMON, AArch64::AEK_PROFILE,
520           AArch64::AEK_BF16, AArch64::AEK_I8MM, AArch64::AEK_MTE,
521           AArch64::AEK_SVE2BITPERM, AArch64::AEK_SB, AArch64::AEK_PAUTH,
522           AArch64::AEK_FP16, AArch64::AEK_FP16FML, AArch64::AEK_PREDRES,
523           AArch64::AEK_FLAGM, AArch64::AEK_SSBS}))},
524     {"cortex-x4", ARMV9_2A,
525      (AArch64::ExtensionBitset(
526          {AArch64::AEK_SB, AArch64::AEK_SSBS, AArch64::AEK_MTE,
527           AArch64::AEK_FP16FML, AArch64::AEK_PAUTH, AArch64::AEK_SVE2BITPERM,
528           AArch64::AEK_FLAGM, AArch64::AEK_PERFMON, AArch64::AEK_PREDRES,
529           AArch64::AEK_PROFILE}))},
530     {"neoverse-e1", ARMV8_2A,
531      (AArch64::ExtensionBitset(
532          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_DOTPROD,
533           AArch64::AEK_FP16, AArch64::AEK_RCPC, AArch64::AEK_SSBS}))},
534     {"neoverse-n1", ARMV8_2A,
535      (AArch64::ExtensionBitset(
536          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_DOTPROD,
537           AArch64::AEK_FP16, AArch64::AEK_PROFILE, AArch64::AEK_RCPC,
538           AArch64::AEK_SSBS}))},
539     {"neoverse-n2", ARMV9A,
540      (AArch64::ExtensionBitset(
541          {AArch64::AEK_BF16, AArch64::AEK_DOTPROD,
542           AArch64::AEK_FP16, AArch64::AEK_I8MM, AArch64::AEK_MTE,
543           AArch64::AEK_SB, AArch64::AEK_SSBS, AArch64::AEK_SVE,
544           AArch64::AEK_SVE2, AArch64::AEK_SVE2BITPERM}))},
545     {"neoverse-512tvb", ARMV8_4A,
546      (AArch64::ExtensionBitset(
547          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_SHA3,
548           AArch64::AEK_SM4, AArch64::AEK_SVE, AArch64::AEK_SSBS,
549           AArch64::AEK_FP16, AArch64::AEK_BF16, AArch64::AEK_DOTPROD,
550           AArch64::AEK_PROFILE, AArch64::AEK_RAND, AArch64::AEK_FP16FML,
551           AArch64::AEK_I8MM}))},
552     {"neoverse-v1", ARMV8_4A,
553      (AArch64::ExtensionBitset(
554          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_SHA3,
555           AArch64::AEK_SM4, AArch64::AEK_SVE, AArch64::AEK_SSBS,
556           AArch64::AEK_FP16, AArch64::AEK_BF16, AArch64::AEK_DOTPROD,
557           AArch64::AEK_PROFILE, AArch64::AEK_RAND, AArch64::AEK_FP16FML,
558           AArch64::AEK_I8MM}))},
559     {"neoverse-v2", ARMV9A,
560      (AArch64::ExtensionBitset(
561          {AArch64::AEK_SVE, AArch64::AEK_SVE2, AArch64::AEK_SSBS,
562           AArch64::AEK_FP16, AArch64::AEK_BF16, AArch64::AEK_RAND,
563           AArch64::AEK_DOTPROD, AArch64::AEK_PROFILE, AArch64::AEK_SVE2BITPERM,
564           AArch64::AEK_FP16FML, AArch64::AEK_I8MM, AArch64::AEK_MTE}))},
565     {"cyclone", ARMV8A,
566      (AArch64::ExtensionBitset(
567          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_NONE}))},
568     {"apple-a7", ARMV8A,
569      (AArch64::ExtensionBitset(
570          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_NONE}))},
571     {"apple-a8", ARMV8A,
572      (AArch64::ExtensionBitset(
573          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_NONE}))},
574     {"apple-a9", ARMV8A,
575      (AArch64::ExtensionBitset(
576          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_NONE}))},
577     {"apple-a10", ARMV8A,
578      (AArch64::ExtensionBitset({AArch64::AEK_AES, AArch64::AEK_SHA2,
579                                            AArch64::AEK_CRC,
580                                            AArch64::AEK_RDM}))},
581     {"apple-a11", ARMV8_2A,
582      (AArch64::ExtensionBitset(
583          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_FP16}))},
584     {"apple-a12", ARMV8_3A,
585      (AArch64::ExtensionBitset(
586          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_FP16}))},
587     {"apple-a13", ARMV8_4A,
588      (AArch64::ExtensionBitset(
589          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_SHA3,
590           AArch64::AEK_FP16, AArch64::AEK_FP16FML}))},
591     {"apple-a14", ARMV8_5A,
592      (AArch64::ExtensionBitset(
593          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_SHA3,
594           AArch64::AEK_FP16, AArch64::AEK_FP16FML}))},
595     {"apple-a15", ARMV8_6A,
596      (AArch64::ExtensionBitset(
597          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_SHA3,
598           AArch64::AEK_FP16, AArch64::AEK_FP16FML}))},
599     {"apple-a16", ARMV8_6A,
600      (AArch64::ExtensionBitset(
601          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_SHA3,
602           AArch64::AEK_FP16, AArch64::AEK_FP16FML}))},
603     {"apple-a17", ARMV8_6A,
604      (AArch64::ExtensionBitset(
605          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_SHA3,
606           AArch64::AEK_FP16, AArch64::AEK_FP16FML}))},
607 
608     {"apple-m1", ARMV8_5A,
609      (AArch64::ExtensionBitset(
610          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_SHA3,
611           AArch64::AEK_FP16, AArch64::AEK_FP16FML}))},
612     {"apple-m2", ARMV8_6A,
613      (AArch64::ExtensionBitset(
614          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_SHA3,
615           AArch64::AEK_FP16, AArch64::AEK_FP16FML}))},
616     {"apple-m3", ARMV8_6A,
617      (AArch64::ExtensionBitset(
618          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_SHA3,
619           AArch64::AEK_FP16, AArch64::AEK_FP16FML}))},
620 
621     {"apple-s4", ARMV8_3A,
622      (AArch64::ExtensionBitset(
623          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_FP16}))},
624     {"apple-s5", ARMV8_3A,
625      (AArch64::ExtensionBitset(
626          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_FP16}))},
627     {"exynos-m3", ARMV8A,
628      (AArch64::ExtensionBitset(
629          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_CRC}))},
630     {"exynos-m4", ARMV8_2A,
631      (AArch64::ExtensionBitset({AArch64::AEK_AES, AArch64::AEK_SHA2,
632                                            AArch64::AEK_DOTPROD,
633                                            AArch64::AEK_FP16}))},
634     {"exynos-m5", ARMV8_2A,
635      (AArch64::ExtensionBitset({AArch64::AEK_AES, AArch64::AEK_SHA2,
636                                            AArch64::AEK_DOTPROD,
637                                            AArch64::AEK_FP16}))},
638     {"falkor", ARMV8A,
639      (AArch64::ExtensionBitset({AArch64::AEK_AES, AArch64::AEK_SHA2,
640                                            AArch64::AEK_CRC,
641                                            AArch64::AEK_RDM}))},
642     {"saphira", ARMV8_3A,
643      (AArch64::ExtensionBitset(
644          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_PROFILE}))},
645     {"kryo", ARMV8A,
646      (AArch64::ExtensionBitset(
647          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_CRC}))},
648     {"thunderx2t99", ARMV8_1A,
649      (AArch64::ExtensionBitset(
650          {AArch64::AEK_AES, AArch64::AEK_SHA2}))},
651     {"thunderx3t110", ARMV8_3A,
652      (AArch64::ExtensionBitset(
653          {AArch64::AEK_AES, AArch64::AEK_SHA2}))},
654     {"thunderx", ARMV8A,
655      (AArch64::ExtensionBitset(
656          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_CRC}))},
657     {"thunderxt88", ARMV8A,
658      (AArch64::ExtensionBitset(
659          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_CRC}))},
660     {"thunderxt81", ARMV8A,
661      (AArch64::ExtensionBitset(
662          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_CRC}))},
663     {"thunderxt83", ARMV8A,
664      (AArch64::ExtensionBitset(
665          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_CRC}))},
666     {"tsv110", ARMV8_2A,
667      (AArch64::ExtensionBitset(
668          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_DOTPROD,
669           AArch64::AEK_FP16, AArch64::AEK_FP16FML, AArch64::AEK_PROFILE}))},
670     {"a64fx", ARMV8_2A,
671      (AArch64::ExtensionBitset({AArch64::AEK_AES, AArch64::AEK_SHA2,
672                                            AArch64::AEK_FP16,
673                                            AArch64::AEK_SVE}))},
674     {"carmel", ARMV8_2A,
675      (AArch64::ExtensionBitset(
676          {AArch64::AEK_AES, AArch64::AEK_SHA2, AArch64::AEK_FP16}))},
677     {"ampere1", ARMV8_6A,
678      (AArch64::ExtensionBitset({AArch64::AEK_AES, AArch64::AEK_SHA2,
679                                            AArch64::AEK_SHA3, AArch64::AEK_FP16,
680                                            AArch64::AEK_SB, AArch64::AEK_SSBS,
681                                            AArch64::AEK_RAND}))},
682     {"ampere1a", ARMV8_6A,
683      (AArch64::ExtensionBitset(
684          {AArch64::AEK_FP16, AArch64::AEK_RAND, AArch64::AEK_SM4,
685           AArch64::AEK_SHA3, AArch64::AEK_SHA2, AArch64::AEK_AES,
686           AArch64::AEK_MTE, AArch64::AEK_SB, AArch64::AEK_SSBS}))},
687 };
688 
689 // An alias for a CPU.
690 struct CpuAlias {
691   StringRef Alias;
692   StringRef Name;
693 };
694 
695 inline constexpr CpuAlias CpuAliases[] = {{"grace", "neoverse-v2"}};
696 
697 bool getExtensionFeatures(
698     const AArch64::ExtensionBitset &Extensions,
699     std::vector<StringRef> &Features);
700 
701 StringRef getArchExtFeature(StringRef ArchExt);
702 StringRef resolveCPUAlias(StringRef CPU);
703 
704 // Information by Name
705 std::optional<ArchInfo> getArchForCpu(StringRef CPU);
706 
707 // Parser
708 std::optional<ArchInfo> parseArch(StringRef Arch);
709 std::optional<ExtensionInfo> parseArchExtension(StringRef Extension);
710 // Given the name of a CPU or alias, return the correponding CpuInfo.
711 std::optional<CpuInfo> parseCpu(StringRef Name);
712 // Used by target parser tests
713 void fillValidCPUArchList(SmallVectorImpl<StringRef> &Values);
714 
715 bool isX18ReservedByDefault(const Triple &TT);
716 
717 // For given feature names, return a bitmask corresponding to the entries of
718 // AArch64::CPUFeatures. The values in CPUFeatures are not bitmasks
719 // themselves, they are sequential (0, 1, 2, 3, ...).
720 uint64_t getCpuSupportsMask(ArrayRef<StringRef> FeatureStrs);
721 
722 void PrintSupportedExtensions(StringMap<StringRef> DescMap);
723 
724 } // namespace AArch64
725 } // namespace llvm
726 
727 #endif
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