xref: /freebsd/contrib/llvm-project/llvm/lib/Target/ARM/ARM.td (revision 5e801ac66d24704442eba426ed13c3effb8a34e7) 
1//===-- ARM.td - Describe the ARM Target Machine -----------*- tablegen -*-===//
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//
10//===----------------------------------------------------------------------===//
11
12//===----------------------------------------------------------------------===//
13// Target-independent interfaces which we are implementing
14//===----------------------------------------------------------------------===//
15
16include "llvm/Target/Target.td"
17
18//===----------------------------------------------------------------------===//
19// ARM Subtarget state.
20//
21
22def ModeThumb             : SubtargetFeature<"thumb-mode", "InThumbMode",
23                                             "true", "Thumb mode">;
24
25def ModeSoftFloat         : SubtargetFeature<"soft-float","UseSoftFloat",
26                                             "true", "Use software floating "
27                                             "point features.">;
28
29
30//===----------------------------------------------------------------------===//
31// ARM Subtarget features.
32//
33
34// Floating Point, HW Division and Neon Support
35
36// FP loads/stores/moves, shared between VFP and MVE (even in the integer-only
37// version).
38def FeatureFPRegs         : SubtargetFeature<"fpregs", "HasFPRegs", "true",
39                                             "Enable FP registers">;
40
41// 16-bit FP loads/stores/moves, shared between VFP (with the v8.2A FP16
42// extension) and MVE (even in the integer-only version).
43def FeatureFPRegs16       : SubtargetFeature<"fpregs16", "HasFPRegs16", "true",
44                                             "Enable 16-bit FP registers",
45                                             [FeatureFPRegs]>;
46
47def FeatureFPRegs64       : SubtargetFeature<"fpregs64", "HasFPRegs64", "true",
48                                             "Enable 64-bit FP registers",
49                                             [FeatureFPRegs]>;
50
51def FeatureFP64           : SubtargetFeature<"fp64", "HasFP64", "true",
52                                             "Floating point unit supports "
53                                             "double precision",
54                                             [FeatureFPRegs64]>;
55
56def FeatureD32            : SubtargetFeature<"d32", "HasD32", "true",
57                                             "Extend FP to 32 double registers">;
58
59multiclass VFPver<string name, string query, string description,
60                  list<SubtargetFeature> prev,
61                  list<SubtargetFeature> otherimplies,
62                  list<SubtargetFeature> vfp2prev = []> {
63  def _D16_SP: SubtargetFeature<
64    name#"d16sp", query#"D16SP", "true",
65    description#" with only 16 d-registers and no double precision",
66    !foreach(v, prev, !cast<SubtargetFeature>(v # "_D16_SP")) #
67      !foreach(v, vfp2prev, !cast<SubtargetFeature>(v # "_SP")) #
68      otherimplies>;
69  def _SP: SubtargetFeature<
70    name#"sp", query#"SP", "true",
71    description#" with no double precision",
72    !foreach(v, prev, !cast<SubtargetFeature>(v # "_SP")) #
73      otherimplies # [FeatureD32, !cast<SubtargetFeature>(NAME # "_D16_SP")]>;
74  def _D16: SubtargetFeature<
75    name#"d16", query#"D16", "true",
76    description#" with only 16 d-registers",
77    !foreach(v, prev, !cast<SubtargetFeature>(v # "_D16")) #
78      vfp2prev #
79      otherimplies # [FeatureFP64, !cast<SubtargetFeature>(NAME # "_D16_SP")]>;
80  def "": SubtargetFeature<
81    name, query, "true", description,
82    prev # otherimplies # [
83        !cast<SubtargetFeature>(NAME # "_D16"),
84        !cast<SubtargetFeature>(NAME # "_SP")]>;
85}
86
87def FeatureVFP2_SP        : SubtargetFeature<"vfp2sp", "HasVFPv2SP", "true",
88                                             "Enable VFP2 instructions with "
89                                             "no double precision",
90                                             [FeatureFPRegs]>;
91
92def FeatureVFP2           : SubtargetFeature<"vfp2", "HasVFPv2", "true",
93                                             "Enable VFP2 instructions",
94                                             [FeatureFP64, FeatureVFP2_SP]>;
95
96defm FeatureVFP3: VFPver<"vfp3", "HasVFPv3", "Enable VFP3 instructions",
97                         [], [], [FeatureVFP2]>;
98
99def FeatureNEON           : SubtargetFeature<"neon", "HasNEON", "true",
100                                             "Enable NEON instructions",
101                                             [FeatureVFP3]>;
102
103def FeatureFP16           : SubtargetFeature<"fp16", "HasFP16", "true",
104                                             "Enable half-precision "
105                                             "floating point">;
106
107defm FeatureVFP4: VFPver<"vfp4", "HasVFPv4", "Enable VFP4 instructions",
108                         [FeatureVFP3], [FeatureFP16]>;
109
110defm FeatureFPARMv8: VFPver<"fp-armv8", "HasFPARMv8", "Enable ARMv8 FP",
111                         [FeatureVFP4], []>;
112
113def FeatureFullFP16       : SubtargetFeature<"fullfp16", "HasFullFP16", "true",
114                                             "Enable full half-precision "
115                                             "floating point",
116                                             [FeatureFPARMv8_D16_SP, FeatureFPRegs16]>;
117
118def FeatureFP16FML        : SubtargetFeature<"fp16fml", "HasFP16FML", "true",
119                                             "Enable full half-precision "
120                                             "floating point fml instructions",
121                                             [FeatureFullFP16]>;
122
123def FeatureHWDivThumb     : SubtargetFeature<"hwdiv",
124                                             "HasHardwareDivideInThumb", "true",
125                                             "Enable divide instructions in Thumb">;
126
127def FeatureHWDivARM       : SubtargetFeature<"hwdiv-arm",
128                                             "HasHardwareDivideInARM", "true",
129                                             "Enable divide instructions in ARM mode">;
130
131// Atomic Support
132def FeatureDB             : SubtargetFeature<"db", "HasDataBarrier", "true",
133                                             "Has data barrier (dmb/dsb) instructions">;
134
135def FeatureV7Clrex        : SubtargetFeature<"v7clrex", "HasV7Clrex", "true",
136                                             "Has v7 clrex instruction">;
137
138def FeatureDFB  : SubtargetFeature<"dfb", "HasFullDataBarrier", "true",
139                                   "Has full data barrier (dfb) instruction">;
140
141def FeatureAcquireRelease : SubtargetFeature<"acquire-release",
142                                             "HasAcquireRelease", "true",
143                                             "Has v8 acquire/release (lda/ldaex "
144                                             " etc) instructions">;
145
146
147def FeatureSlowFPBrcc     : SubtargetFeature<"slow-fp-brcc", "SlowFPBrcc", "true",
148                                             "FP compare + branch is slow">;
149
150def FeaturePerfMon        : SubtargetFeature<"perfmon", "HasPerfMon", "true",
151                                             "Enable support for Performance "
152                                             "Monitor extensions">;
153
154
155// TrustZone Security Extensions
156def FeatureTrustZone      : SubtargetFeature<"trustzone", "HasTrustZone", "true",
157                                             "Enable support for TrustZone "
158                                             "security extensions">;
159
160def Feature8MSecExt       : SubtargetFeature<"8msecext", "Has8MSecExt", "true",
161                                             "Enable support for ARMv8-M "
162                                             "Security Extensions">;
163
164def FeatureSHA2           : SubtargetFeature<"sha2", "HasSHA2", "true",
165                                             "Enable SHA1 and SHA256 support", [FeatureNEON]>;
166
167def FeatureAES            : SubtargetFeature<"aes", "HasAES", "true",
168                                             "Enable AES support", [FeatureNEON]>;
169
170def FeatureCrypto         : SubtargetFeature<"crypto", "HasCrypto", "true",
171                                             "Enable support for "
172                                             "Cryptography extensions",
173                                             [FeatureNEON, FeatureSHA2, FeatureAES]>;
174
175def FeatureCRC            : SubtargetFeature<"crc", "HasCRC", "true",
176                                             "Enable support for CRC instructions">;
177
178def FeatureDotProd        : SubtargetFeature<"dotprod", "HasDotProd", "true",
179                                             "Enable support for dot product instructions",
180                                             [FeatureNEON]>;
181
182// Not to be confused with FeatureHasRetAddrStack (return address stack)
183def FeatureRAS            : SubtargetFeature<"ras", "HasRAS", "true",
184                                             "Enable Reliability, Availability "
185                                             "and Serviceability extensions">;
186
187// Fast computation of non-negative address offsets
188def FeatureFPAO           : SubtargetFeature<"fpao", "HasFPAO", "true",
189                                             "Enable fast computation of "
190                                             "positive address offsets">;
191
192// Fast execution of AES crypto operations
193def FeatureFuseAES        : SubtargetFeature<"fuse-aes", "HasFuseAES", "true",
194                                             "CPU fuses AES crypto operations">;
195
196// Fast execution of bottom and top halves of literal generation
197def FeatureFuseLiterals   : SubtargetFeature<"fuse-literals", "HasFuseLiterals", "true",
198                                             "CPU fuses literal generation operations">;
199
200// The way of reading thread pointer
201def FeatureReadTp :  SubtargetFeature<"read-tp-hard", "ReadTPHard", "true",
202                                      "Reading thread pointer from register">;
203
204// Cyclone can zero VFP registers in 0 cycles.
205def FeatureZCZeroing      : SubtargetFeature<"zcz", "HasZeroCycleZeroing", "true",
206                                             "Has zero-cycle zeroing instructions">;
207
208// Whether it is profitable to unpredicate certain instructions during if-conversion
209def FeatureProfUnpredicate : SubtargetFeature<"prof-unpr",
210                                              "IsProfitableToUnpredicate", "true",
211                                              "Is profitable to unpredicate">;
212
213// Some targets (e.g. Swift) have microcoded VGETLNi32.
214def FeatureSlowVGETLNi32  : SubtargetFeature<"slow-vgetlni32",
215                                             "HasSlowVGETLNi32", "true",
216                                             "Has slow VGETLNi32 - prefer VMOV">;
217
218// Some targets (e.g. Swift) have microcoded VDUP32.
219def FeatureSlowVDUP32     : SubtargetFeature<"slow-vdup32", "HasSlowVDUP32",
220                                             "true",
221                                             "Has slow VDUP32 - prefer VMOV">;
222
223// Some targets (e.g. Cortex-A9) prefer VMOVSR to VMOVDRR even when using NEON
224// for scalar FP, as this allows more effective execution domain optimization.
225def FeaturePreferVMOVSR   : SubtargetFeature<"prefer-vmovsr", "PreferVMOVSR",
226                                             "true", "Prefer VMOVSR">;
227
228// Swift has ISHST barriers compatible with Atomic Release semantics but weaker
229// than ISH
230def FeaturePrefISHSTBarrier : SubtargetFeature<"prefer-ishst", "PreferISHST",
231                                               "true", "Prefer ISHST barriers">;
232
233// Some targets (e.g. Cortex-A9) have muxed AGU and NEON/FPU.
234def FeatureMuxedUnits     : SubtargetFeature<"muxed-units", "HasMuxedUnits",
235                                             "true",
236                                             "Has muxed AGU and NEON/FPU">;
237
238// Whether VLDM/VSTM starting with odd register number need more microops
239// than single VLDRS
240def FeatureSlowOddRegister : SubtargetFeature<"slow-odd-reg", "SlowOddRegister",
241                                              "true", "VLDM/VSTM starting "
242                                              "with an odd register is slow">;
243
244// Some targets have a renaming dependency when loading into D subregisters.
245def FeatureSlowLoadDSubreg : SubtargetFeature<"slow-load-D-subreg",
246                                              "SlowLoadDSubregister", "true",
247                                              "Loading into D subregs is slow">;
248
249def FeatureUseWideStrideVFP : SubtargetFeature<"wide-stride-vfp",
250                                               "UseWideStrideVFP", "true",
251                                               "Use a wide stride when allocating VFP registers">;
252
253// Some targets (e.g. Cortex-A15) never want VMOVS to be widened to VMOVD.
254def FeatureDontWidenVMOVS : SubtargetFeature<"dont-widen-vmovs",
255                                             "DontWidenVMOVS", "true",
256                                             "Don't widen VMOVS to VMOVD">;
257
258// Some targets (e.g. Cortex-A15) prefer to avoid mixing operations on different
259// VFP register widths.
260def FeatureSplatVFPToNeon : SubtargetFeature<"splat-vfp-neon",
261                                             "SplatVFPToNeon", "true",
262                                             "Splat register from VFP to NEON",
263                                             [FeatureDontWidenVMOVS]>;
264
265// Whether or not it is profitable to expand VFP/NEON MLA/MLS instructions.
266def FeatureExpandMLx      : SubtargetFeature<"expand-fp-mlx",
267                                             "ExpandMLx", "true",
268                                             "Expand VFP/NEON MLA/MLS instructions">;
269
270// Some targets have special RAW hazards for VFP/NEON VMLA/VMLS.
271def FeatureHasVMLxHazards : SubtargetFeature<"vmlx-hazards", "HasVMLxHazards",
272                                             "true", "Has VMLx hazards">;
273
274// Some targets (e.g. Cortex-A9) want to convert VMOVRS, VMOVSR and VMOVS from
275// VFP to NEON, as an execution domain optimization.
276def FeatureNEONForFPMovs  : SubtargetFeature<"neon-fpmovs",
277                                             "UseNEONForFPMovs", "true",
278                                             "Convert VMOVSR, VMOVRS, "
279                                             "VMOVS to NEON">;
280
281// Some processors benefit from using NEON instructions for scalar
282// single-precision FP operations. This affects instruction selection and should
283// only be enabled if the handling of denormals is not important.
284def FeatureNEONForFP      : SubtargetFeature<"neonfp",
285                                             "UseNEONForSinglePrecisionFP",
286                                             "true",
287                                             "Use NEON for single precision FP">;
288
289// On some processors, VLDn instructions that access unaligned data take one
290// extra cycle. Take that into account when computing operand latencies.
291def FeatureCheckVLDnAlign : SubtargetFeature<"vldn-align", "CheckVLDnAlign",
292                                             "true",
293                                             "Check for VLDn unaligned access">;
294
295// Some processors have a nonpipelined VFP coprocessor.
296def FeatureNonpipelinedVFP : SubtargetFeature<"nonpipelined-vfp",
297                                              "NonpipelinedVFP", "true",
298                                              "VFP instructions are not pipelined">;
299
300// Some processors have FP multiply-accumulate instructions that don't
301// play nicely with other VFP / NEON instructions, and it's generally better
302// to just not use them.
303def FeatureHasSlowFPVMLx  : SubtargetFeature<"slowfpvmlx", "SlowFPVMLx", "true",
304                                             "Disable VFP / NEON MAC instructions">;
305
306// VFPv4 added VFMA instructions that can similar be fast or slow.
307def FeatureHasSlowFPVFMx  : SubtargetFeature<"slowfpvfmx", "SlowFPVFMx", "true",
308                                             "Disable VFP / NEON FMA instructions">;
309
310// Cortex-A8 / A9 Advanced SIMD has multiplier accumulator forwarding.
311def FeatureVMLxForwarding : SubtargetFeature<"vmlx-forwarding",
312                                             "HasVMLxForwarding", "true",
313                                             "Has multiplier accumulator forwarding">;
314
315// Disable 32-bit to 16-bit narrowing for experimentation.
316def FeaturePref32BitThumb : SubtargetFeature<"32bit", "Pref32BitThumb", "true",
317                                             "Prefer 32-bit Thumb instrs">;
318
319def FeaturePrefLoopAlign32 : SubtargetFeature<"loop-align", "PrefLoopLogAlignment","2",
320                                              "Prefer 32-bit alignment for loops">;
321
322def FeatureMVEVectorCostFactor1 : SubtargetFeature<"mve1beat", "MVEVectorCostFactor", "1",
323                        "Model MVE instructions as a 1 beat per tick architecture">;
324
325def FeatureMVEVectorCostFactor2 : SubtargetFeature<"mve2beat", "MVEVectorCostFactor", "2",
326                        "Model MVE instructions as a 2 beats per tick architecture">;
327
328def FeatureMVEVectorCostFactor4 : SubtargetFeature<"mve4beat", "MVEVectorCostFactor", "4",
329                        "Model MVE instructions as a 4 beats per tick architecture">;
330
331/// Some instructions update CPSR partially, which can add false dependency for
332/// out-of-order implementation, e.g. Cortex-A9, unless each individual bit is
333/// mapped to a separate physical register. Avoid partial CPSR update for these
334/// processors.
335def FeatureAvoidPartialCPSR : SubtargetFeature<"avoid-partial-cpsr",
336                                               "AvoidCPSRPartialUpdate", "true",
337                                 "Avoid CPSR partial update for OOO execution">;
338
339/// Disable +1 predication cost for instructions updating CPSR.
340/// Enabled for Cortex-A57.
341def FeatureCheapPredicableCPSR : SubtargetFeature<"cheap-predicable-cpsr",
342                                                  "CheapPredicableCPSRDef",
343                                                  "true",
344                  "Disable +1 predication cost for instructions updating CPSR">;
345
346def FeatureAvoidMOVsShOp  : SubtargetFeature<"avoid-movs-shop",
347                                             "AvoidMOVsShifterOperand", "true",
348                                             "Avoid movs instructions with "
349                                             "shifter operand">;
350
351// Some processors perform return stack prediction. CodeGen should avoid issue
352// "normal" call instructions to callees which do not return.
353def FeatureHasRetAddrStack : SubtargetFeature<"ret-addr-stack",
354                                              "HasRetAddrStack", "true",
355                                              "Has return address stack">;
356
357// Some processors have no branch predictor, which changes the expected cost of
358// taking a branch which affects the choice of whether to use predicated
359// instructions.
360def FeatureHasNoBranchPredictor : SubtargetFeature<"no-branch-predictor",
361                                                   "HasBranchPredictor", "false",
362                                                   "Has no branch predictor">;
363
364/// DSP extension.
365def FeatureDSP            : SubtargetFeature<"dsp", "HasDSP", "true",
366                                             "Supports DSP instructions in "
367                                             "ARM and/or Thumb2">;
368
369// Multiprocessing extension.
370def FeatureMP             : SubtargetFeature<"mp", "HasMPExtension", "true",
371                                        "Supports Multiprocessing extension">;
372
373// Virtualization extension - requires HW divide (ARMv7-AR ARMARM - 4.4.8).
374def FeatureVirtualization : SubtargetFeature<"virtualization",
375                                             "HasVirtualization", "true",
376                                             "Supports Virtualization extension",
377                                             [FeatureHWDivThumb, FeatureHWDivARM]>;
378
379// Special TRAP encoding for NaCl, which looks like a TRAP in Thumb too.
380// See ARMInstrInfo.td for details.
381def FeatureNaClTrap       : SubtargetFeature<"nacl-trap", "UseNaClTrap", "true",
382                                             "NaCl trap">;
383
384def FeatureStrictAlign    : SubtargetFeature<"strict-align",
385                                             "StrictAlign", "true",
386                                             "Disallow all unaligned memory "
387                                             "access">;
388
389def FeatureLongCalls      : SubtargetFeature<"long-calls", "GenLongCalls", "true",
390                                             "Generate calls via indirect call "
391                                             "instructions">;
392
393def FeatureExecuteOnly    : SubtargetFeature<"execute-only",
394                                             "GenExecuteOnly", "true",
395                                             "Enable the generation of "
396                                             "execute only code.">;
397
398def FeatureReserveR9      : SubtargetFeature<"reserve-r9", "ReserveR9", "true",
399                                             "Reserve R9, making it unavailable"
400                                             " as GPR">;
401
402def FeatureNoMovt         : SubtargetFeature<"no-movt", "NoMovt", "true",
403                                             "Don't use movt/movw pairs for "
404                                             "32-bit imms">;
405
406def FeatureNoNegativeImmediates
407                          : SubtargetFeature<"no-neg-immediates",
408                                             "NegativeImmediates", "false",
409                                             "Convert immediates and instructions "
410                                             "to their negated or complemented "
411                                             "equivalent when the immediate does "
412                                             "not fit in the encoding.">;
413
414// Use the MachineScheduler for instruction scheduling for the subtarget.
415def FeatureUseMISched: SubtargetFeature<"use-misched", "UseMISched", "true",
416                                        "Use the MachineScheduler">;
417
418def FeatureNoPostRASched : SubtargetFeature<"disable-postra-scheduler",
419    "DisablePostRAScheduler", "true",
420    "Don't schedule again after register allocation">;
421
422// Armv8.5-A extensions
423
424def FeatureSB       : SubtargetFeature<"sb", "HasSB", "true",
425  "Enable v8.5a Speculation Barrier" >;
426
427// Armv8.6-A extensions
428def FeatureBF16     : SubtargetFeature<"bf16", "HasBF16", "true",
429  "Enable support for BFloat16 instructions",  [FeatureNEON]>;
430
431def FeatureMatMulInt8 : SubtargetFeature<"i8mm", "HasMatMulInt8",
432    "true", "Enable Matrix Multiply Int8 Extension", [FeatureNEON]>;
433
434// Armv8.1-M extensions
435
436def FeatureLOB            : SubtargetFeature<"lob", "HasLOB", "true",
437                                             "Enable Low Overhead Branch "
438                                             "extensions">;
439
440def FeatureFixCMSE_CVE_2021_35465 : SubtargetFeature<"fix-cmse-cve-2021-35465",
441                                        "FixCMSE_CVE_2021_35465", "true",
442                                        "Mitigate against the cve-2021-35465 "
443                                        "security vulnurability">;
444
445//===----------------------------------------------------------------------===//
446// ARM architecture class
447//
448
449// A-series ISA
450def FeatureAClass : SubtargetFeature<"aclass", "ARMProcClass", "AClass",
451                                     "Is application profile ('A' series)">;
452
453// R-series ISA
454def FeatureRClass : SubtargetFeature<"rclass", "ARMProcClass", "RClass",
455                                     "Is realtime profile ('R' series)">;
456
457// M-series ISA
458def FeatureMClass : SubtargetFeature<"mclass", "ARMProcClass", "MClass",
459                                     "Is microcontroller profile ('M' series)">;
460
461
462def FeatureThumb2 : SubtargetFeature<"thumb2", "HasThumb2", "true",
463                                     "Enable Thumb2 instructions">;
464
465def FeatureNoARM  : SubtargetFeature<"noarm", "NoARM", "true",
466                                     "Does not support ARM mode execution">;
467
468//===----------------------------------------------------------------------===//
469// ARM ISAa.
470//
471
472def HasV4TOps   : SubtargetFeature<"v4t", "HasV4TOps", "true",
473                                   "Support ARM v4T instructions">;
474
475def HasV5TOps   : SubtargetFeature<"v5t", "HasV5TOps", "true",
476                                   "Support ARM v5T instructions",
477                                   [HasV4TOps]>;
478
479def HasV5TEOps  : SubtargetFeature<"v5te", "HasV5TEOps", "true",
480                                   "Support ARM v5TE, v5TEj, and "
481                                   "v5TExp instructions",
482                                   [HasV5TOps]>;
483
484def HasV6Ops    : SubtargetFeature<"v6", "HasV6Ops", "true",
485                                   "Support ARM v6 instructions",
486                                   [HasV5TEOps]>;
487
488def HasV6MOps   : SubtargetFeature<"v6m", "HasV6MOps", "true",
489                                   "Support ARM v6M instructions",
490                                   [HasV6Ops]>;
491
492def HasV8MBaselineOps : SubtargetFeature<"v8m", "HasV8MBaselineOps", "true",
493                                         "Support ARM v8M Baseline instructions",
494                                         [HasV6MOps]>;
495
496def HasV6KOps   : SubtargetFeature<"v6k", "HasV6KOps", "true",
497                                   "Support ARM v6k instructions",
498                                   [HasV6Ops]>;
499
500def HasV6T2Ops  : SubtargetFeature<"v6t2", "HasV6T2Ops", "true",
501                                   "Support ARM v6t2 instructions",
502                                   [HasV8MBaselineOps, HasV6KOps, FeatureThumb2]>;
503
504def HasV7Ops    : SubtargetFeature<"v7", "HasV7Ops", "true",
505                                   "Support ARM v7 instructions",
506                                   [HasV6T2Ops, FeaturePerfMon,
507                                    FeatureV7Clrex]>;
508
509def HasV8MMainlineOps :
510                  SubtargetFeature<"v8m.main", "HasV8MMainlineOps", "true",
511                                   "Support ARM v8M Mainline instructions",
512                                   [HasV7Ops]>;
513
514def HasV8Ops    : SubtargetFeature<"v8", "HasV8Ops", "true",
515                                   "Support ARM v8 instructions",
516                                   [HasV7Ops, FeatureAcquireRelease]>;
517
518def HasV8_1aOps : SubtargetFeature<"v8.1a", "HasV8_1aOps", "true",
519                                   "Support ARM v8.1a instructions",
520                                   [HasV8Ops]>;
521
522def HasV8_2aOps : SubtargetFeature<"v8.2a", "HasV8_2aOps", "true",
523                                   "Support ARM v8.2a instructions",
524                                   [HasV8_1aOps]>;
525
526def HasV8_3aOps   : SubtargetFeature<"v8.3a", "HasV8_3aOps", "true",
527                                   "Support ARM v8.3a instructions",
528                                   [HasV8_2aOps]>;
529
530def HasV8_4aOps   : SubtargetFeature<"v8.4a", "HasV8_4aOps", "true",
531                                   "Support ARM v8.4a instructions",
532                                   [HasV8_3aOps, FeatureDotProd]>;
533
534def HasV8_5aOps   : SubtargetFeature<"v8.5a", "HasV8_5aOps", "true",
535                                   "Support ARM v8.5a instructions",
536                                   [HasV8_4aOps, FeatureSB]>;
537
538def HasV8_6aOps   : SubtargetFeature<"v8.6a", "HasV8_6aOps", "true",
539                                   "Support ARM v8.6a instructions",
540                                   [HasV8_5aOps, FeatureBF16,
541                                    FeatureMatMulInt8]>;
542
543def HasV8_7aOps   : SubtargetFeature<"v8.7a", "HasV8_7aOps", "true",
544                                   "Support ARM v8.7a instructions",
545                                   [HasV8_6aOps]>;
546
547def HasV9_0aOps   : SubtargetFeature<"v9a", "HasV9_0aOps", "true",
548                                   "Support ARM v9a instructions",
549                                   [HasV8_5aOps]>;
550
551def HasV9_1aOps   : SubtargetFeature<"v9.1a", "HasV9_1aOps", "true",
552                                   "Support ARM v9.1a instructions",
553                                   [HasV8_6aOps, HasV9_0aOps]>;
554
555def HasV9_2aOps   : SubtargetFeature<"v9.2a", "HasV9_2aOps", "true",
556                                   "Support ARM v9.2a instructions",
557                                   [HasV8_7aOps, HasV9_1aOps]>;
558
559def HasV8_1MMainlineOps : SubtargetFeature<
560               "v8.1m.main", "HasV8_1MMainlineOps", "true",
561               "Support ARM v8-1M Mainline instructions",
562               [HasV8MMainlineOps]>;
563def HasMVEIntegerOps : SubtargetFeature<
564               "mve", "HasMVEIntegerOps", "true",
565               "Support M-Class Vector Extension with integer ops",
566               [HasV8_1MMainlineOps, FeatureDSP, FeatureFPRegs16, FeatureFPRegs64]>;
567def HasMVEFloatOps : SubtargetFeature<
568               "mve.fp", "HasMVEFloatOps", "true",
569               "Support M-Class Vector Extension with integer and floating ops",
570               [HasMVEIntegerOps, FeatureFPARMv8_D16_SP, FeatureFullFP16]>;
571
572def HasCDEOps : SubtargetFeature<"cde", "HasCDEOps", "true",
573                                 "Support CDE instructions",
574                                 [HasV8MMainlineOps]>;
575
576foreach i = {0-7} in
577    def FeatureCoprocCDE#i : SubtargetFeature<"cdecp"#i,
578                                              "CoprocCDE["#i#"]", "true",
579                                              "Coprocessor "#i#" ISA is CDEv1",
580                                              [HasCDEOps]>;
581
582//===----------------------------------------------------------------------===//
583// Control codegen mitigation against Straight Line Speculation vulnerability.
584//===----------------------------------------------------------------------===//
585
586def FeatureHardenSlsRetBr : SubtargetFeature<"harden-sls-retbr",
587  "HardenSlsRetBr", "true",
588  "Harden against straight line speculation across RETurn and BranchRegister "
589  "instructions">;
590def FeatureHardenSlsBlr : SubtargetFeature<"harden-sls-blr",
591  "HardenSlsBlr", "true",
592  "Harden against straight line speculation across indirect calls">;
593def FeatureHardenSlsNoComdat : SubtargetFeature<"harden-sls-nocomdat",
594  "HardenSlsNoComdat", "true",
595  "Generate thunk code for SLS mitigation in the normal text section">;
596
597//===----------------------------------------------------------------------===//
598// ARM Processor subtarget features.
599//
600
601def ProcA5      : SubtargetFeature<"a5", "ARMProcFamily", "CortexA5",
602                                   "Cortex-A5 ARM processors", []>;
603def ProcA7      : SubtargetFeature<"a7", "ARMProcFamily", "CortexA7",
604                                   "Cortex-A7 ARM processors", []>;
605def ProcA8      : SubtargetFeature<"a8", "ARMProcFamily", "CortexA8",
606                                   "Cortex-A8 ARM processors", []>;
607def ProcA9      : SubtargetFeature<"a9", "ARMProcFamily", "CortexA9",
608                                   "Cortex-A9 ARM processors", []>;
609def ProcA12     : SubtargetFeature<"a12", "ARMProcFamily", "CortexA12",
610                                   "Cortex-A12 ARM processors", []>;
611def ProcA15     : SubtargetFeature<"a15", "ARMProcFamily", "CortexA15",
612                                   "Cortex-A15 ARM processors", []>;
613def ProcA17     : SubtargetFeature<"a17", "ARMProcFamily", "CortexA17",
614                                   "Cortex-A17 ARM processors", []>;
615def ProcA32     : SubtargetFeature<"a32", "ARMProcFamily", "CortexA32",
616                                   "Cortex-A32 ARM processors", []>;
617def ProcA35     : SubtargetFeature<"a35", "ARMProcFamily", "CortexA35",
618                                   "Cortex-A35 ARM processors", []>;
619def ProcA53     : SubtargetFeature<"a53", "ARMProcFamily", "CortexA53",
620                                   "Cortex-A53 ARM processors", []>;
621def ProcA55     : SubtargetFeature<"a55", "ARMProcFamily", "CortexA55",
622                                   "Cortex-A55 ARM processors", []>;
623def ProcA57     : SubtargetFeature<"a57", "ARMProcFamily", "CortexA57",
624                                   "Cortex-A57 ARM processors", []>;
625def ProcA72     : SubtargetFeature<"a72", "ARMProcFamily", "CortexA72",
626                                   "Cortex-A72 ARM processors", []>;
627def ProcA73     : SubtargetFeature<"a73", "ARMProcFamily", "CortexA73",
628                                   "Cortex-A73 ARM processors", []>;
629def ProcA75     : SubtargetFeature<"a75", "ARMProcFamily", "CortexA75",
630                                   "Cortex-A75 ARM processors", []>;
631def ProcA76     : SubtargetFeature<"a76", "ARMProcFamily", "CortexA76",
632                                   "Cortex-A76 ARM processors", []>;
633def ProcA77     : SubtargetFeature<"a77", "ARMProcFamily", "CortexA77",
634                                   "Cortex-A77 ARM processors", []>;
635def ProcA78     : SubtargetFeature<"cortex-a78", "ARMProcFamily", "CortexA78",
636                                   "Cortex-A78 ARM processors", []>;
637def ProcA78C    : SubtargetFeature<"a78c", "ARMProcFamily", "CortexA78C",
638                                   "Cortex-A78C ARM processors", []>;
639def ProcA710    : SubtargetFeature<"cortex-a710", "ARMProcFamily",
640                                   "CortexA710", "Cortex-A710 ARM processors", []>;
641def ProcX1      : SubtargetFeature<"cortex-x1", "ARMProcFamily", "CortexX1",
642                                   "Cortex-X1 ARM processors", []>;
643
644def ProcV1      : SubtargetFeature<"neoverse-v1", "ARMProcFamily",
645                                   "NeoverseV1", "Neoverse-V1 ARM processors", []>;
646
647def ProcKrait   : SubtargetFeature<"krait", "ARMProcFamily", "Krait",
648                                   "Qualcomm Krait processors", []>;
649def ProcKryo    : SubtargetFeature<"kryo", "ARMProcFamily", "Kryo",
650                                   "Qualcomm Kryo processors", []>;
651def ProcSwift   : SubtargetFeature<"swift", "ARMProcFamily", "Swift",
652                                   "Swift ARM processors", []>;
653
654def ProcExynos  : SubtargetFeature<"exynos", "ARMProcFamily", "Exynos",
655                                   "Samsung Exynos processors",
656                                   [FeatureZCZeroing,
657                                    FeatureUseWideStrideVFP,
658                                    FeatureSplatVFPToNeon,
659                                    FeatureSlowVGETLNi32,
660                                    FeatureSlowVDUP32,
661                                    FeatureSlowFPBrcc,
662                                    FeatureProfUnpredicate,
663                                    FeatureHWDivThumb,
664                                    FeatureHWDivARM,
665                                    FeatureHasSlowFPVMLx,
666                                    FeatureHasSlowFPVFMx,
667                                    FeatureHasRetAddrStack,
668                                    FeatureFuseLiterals,
669                                    FeatureFuseAES,
670                                    FeatureExpandMLx,
671                                    FeatureCrypto,
672                                    FeatureCRC]>;
673
674def ProcR4      : SubtargetFeature<"r4", "ARMProcFamily", "CortexR4",
675                                   "Cortex-R4 ARM processors", []>;
676def ProcR5      : SubtargetFeature<"r5", "ARMProcFamily", "CortexR5",
677                                   "Cortex-R5 ARM processors", []>;
678def ProcR7      : SubtargetFeature<"r7", "ARMProcFamily", "CortexR7",
679                                   "Cortex-R7 ARM processors", []>;
680def ProcR52     : SubtargetFeature<"r52", "ARMProcFamily", "CortexR52",
681                                   "Cortex-R52 ARM processors", []>;
682
683def ProcM3      : SubtargetFeature<"m3", "ARMProcFamily", "CortexM3",
684                                   "Cortex-M3 ARM processors", []>;
685def ProcM7      : SubtargetFeature<"m7", "ARMProcFamily", "CortexM7",
686                                   "Cortex-M7 ARM processors", []>;
687
688//===----------------------------------------------------------------------===//
689// ARM Helper classes.
690//
691
692class Architecture<string fname, string aname, list<SubtargetFeature> features>
693  : SubtargetFeature<fname, "ARMArch", aname,
694                     !strconcat(aname, " architecture"), features>;
695
696class ProcNoItin<string Name, list<SubtargetFeature> Features>
697  : Processor<Name, NoItineraries, Features>;
698
699
700//===----------------------------------------------------------------------===//
701// ARM architectures
702//
703
704def ARMv2     : Architecture<"armv2",     "ARMv2",    []>;
705
706def ARMv2a    : Architecture<"armv2a",    "ARMv2a",   []>;
707
708def ARMv3     : Architecture<"armv3",     "ARMv3",    []>;
709
710def ARMv3m    : Architecture<"armv3m",    "ARMv3m",   []>;
711
712def ARMv4     : Architecture<"armv4",     "ARMv4",    []>;
713
714def ARMv4t    : Architecture<"armv4t",    "ARMv4t",   [HasV4TOps]>;
715
716def ARMv5t    : Architecture<"armv5t",    "ARMv5t",   [HasV5TOps]>;
717
718def ARMv5te   : Architecture<"armv5te",   "ARMv5te",  [HasV5TEOps]>;
719
720def ARMv5tej  : Architecture<"armv5tej",  "ARMv5tej", [HasV5TEOps]>;
721
722def ARMv6     : Architecture<"armv6",     "ARMv6",    [HasV6Ops,
723                                                       FeatureDSP]>;
724
725def ARMv6t2   : Architecture<"armv6t2",   "ARMv6t2",  [HasV6T2Ops,
726                                                       FeatureDSP]>;
727
728def ARMv6k    : Architecture<"armv6k",    "ARMv6k",   [HasV6KOps]>;
729
730def ARMv6kz   : Architecture<"armv6kz",   "ARMv6kz",  [HasV6KOps,
731                                                       FeatureTrustZone]>;
732
733def ARMv6m    : Architecture<"armv6-m",   "ARMv6m",   [HasV6MOps,
734                                                       FeatureNoARM,
735                                                       ModeThumb,
736                                                       FeatureDB,
737                                                       FeatureMClass,
738                                                       FeatureStrictAlign]>;
739
740def ARMv6sm   : Architecture<"armv6s-m",  "ARMv6sm",  [HasV6MOps,
741                                                       FeatureNoARM,
742                                                       ModeThumb,
743                                                       FeatureDB,
744                                                       FeatureMClass,
745                                                       FeatureStrictAlign]>;
746
747def ARMv7a    : Architecture<"armv7-a",   "ARMv7a",   [HasV7Ops,
748                                                       FeatureNEON,
749                                                       FeatureDB,
750                                                       FeatureDSP,
751                                                       FeatureAClass]>;
752
753def ARMv7ve   : Architecture<"armv7ve",   "ARMv7ve",  [HasV7Ops,
754                                                       FeatureNEON,
755                                                       FeatureDB,
756                                                       FeatureDSP,
757                                                       FeatureTrustZone,
758                                                       FeatureMP,
759                                                       FeatureVirtualization,
760                                                       FeatureAClass]>;
761
762def ARMv7r    : Architecture<"armv7-r",   "ARMv7r",   [HasV7Ops,
763                                                       FeatureDB,
764                                                       FeatureDSP,
765                                                       FeatureHWDivThumb,
766                                                       FeatureRClass]>;
767
768def ARMv7m    : Architecture<"armv7-m",   "ARMv7m",   [HasV7Ops,
769                                                       FeatureThumb2,
770                                                       FeatureNoARM,
771                                                       ModeThumb,
772                                                       FeatureDB,
773                                                       FeatureHWDivThumb,
774                                                       FeatureMClass]>;
775
776def ARMv7em   : Architecture<"armv7e-m",  "ARMv7em",  [HasV7Ops,
777                                                       FeatureThumb2,
778                                                       FeatureNoARM,
779                                                       ModeThumb,
780                                                       FeatureDB,
781                                                       FeatureHWDivThumb,
782                                                       FeatureMClass,
783                                                       FeatureDSP]>;
784
785def ARMv8a    : Architecture<"armv8-a",   "ARMv8a",   [HasV8Ops,
786                                                       FeatureAClass,
787                                                       FeatureDB,
788                                                       FeatureFPARMv8,
789                                                       FeatureNEON,
790                                                       FeatureDSP,
791                                                       FeatureTrustZone,
792                                                       FeatureMP,
793                                                       FeatureVirtualization,
794                                                       FeatureCrypto,
795                                                       FeatureCRC]>;
796
797def ARMv81a   : Architecture<"armv8.1-a", "ARMv81a",  [HasV8_1aOps,
798                                                       FeatureAClass,
799                                                       FeatureDB,
800                                                       FeatureFPARMv8,
801                                                       FeatureNEON,
802                                                       FeatureDSP,
803                                                       FeatureTrustZone,
804                                                       FeatureMP,
805                                                       FeatureVirtualization,
806                                                       FeatureCrypto,
807                                                       FeatureCRC]>;
808
809def ARMv82a   : Architecture<"armv8.2-a", "ARMv82a",  [HasV8_2aOps,
810                                                       FeatureAClass,
811                                                       FeatureDB,
812                                                       FeatureFPARMv8,
813                                                       FeatureNEON,
814                                                       FeatureDSP,
815                                                       FeatureTrustZone,
816                                                       FeatureMP,
817                                                       FeatureVirtualization,
818                                                       FeatureCrypto,
819                                                       FeatureCRC,
820                                                       FeatureRAS]>;
821
822def ARMv83a   : Architecture<"armv8.3-a", "ARMv83a",  [HasV8_3aOps,
823                                                       FeatureAClass,
824                                                       FeatureDB,
825                                                       FeatureFPARMv8,
826                                                       FeatureNEON,
827                                                       FeatureDSP,
828                                                       FeatureTrustZone,
829                                                       FeatureMP,
830                                                       FeatureVirtualization,
831                                                       FeatureCrypto,
832                                                       FeatureCRC,
833                                                       FeatureRAS]>;
834
835def ARMv84a   : Architecture<"armv8.4-a", "ARMv84a",  [HasV8_4aOps,
836                                                       FeatureAClass,
837                                                       FeatureDB,
838                                                       FeatureFPARMv8,
839                                                       FeatureNEON,
840                                                       FeatureDSP,
841                                                       FeatureTrustZone,
842                                                       FeatureMP,
843                                                       FeatureVirtualization,
844                                                       FeatureCrypto,
845                                                       FeatureCRC,
846                                                       FeatureRAS,
847                                                       FeatureDotProd]>;
848
849def ARMv85a   : Architecture<"armv8.5-a", "ARMv85a",  [HasV8_5aOps,
850                                                       FeatureAClass,
851                                                       FeatureDB,
852                                                       FeatureFPARMv8,
853                                                       FeatureNEON,
854                                                       FeatureDSP,
855                                                       FeatureTrustZone,
856                                                       FeatureMP,
857                                                       FeatureVirtualization,
858                                                       FeatureCrypto,
859                                                       FeatureCRC,
860                                                       FeatureRAS,
861                                                       FeatureDotProd]>;
862def ARMv86a   : Architecture<"armv8.6-a", "ARMv86a",  [HasV8_6aOps,
863                                                       FeatureAClass,
864                                                       FeatureDB,
865                                                       FeatureFPARMv8,
866                                                       FeatureNEON,
867                                                       FeatureDSP,
868                                                       FeatureTrustZone,
869                                                       FeatureMP,
870                                                       FeatureVirtualization,
871                                                       FeatureCrypto,
872                                                       FeatureCRC,
873                                                       FeatureRAS,
874                                                       FeatureDotProd]>;
875def ARMv87a   : Architecture<"armv8.7-a", "ARMv87a",  [HasV8_7aOps,
876                                                       FeatureAClass,
877                                                       FeatureDB,
878                                                       FeatureFPARMv8,
879                                                       FeatureNEON,
880                                                       FeatureDSP,
881                                                       FeatureTrustZone,
882                                                       FeatureMP,
883                                                       FeatureVirtualization,
884                                                       FeatureCrypto,
885                                                       FeatureCRC,
886                                                       FeatureRAS,
887                                                       FeatureDotProd]>;
888
889def ARMv9a   : Architecture<"armv9-a", "ARMv9a",       [HasV9_0aOps,
890                                                       FeatureAClass,
891                                                       FeatureDB,
892                                                       FeatureFPARMv8,
893                                                       FeatureNEON,
894                                                       FeatureDSP,
895                                                       FeatureTrustZone,
896                                                       FeatureMP,
897                                                       FeatureVirtualization,
898                                                       FeatureCRC,
899                                                       FeatureRAS,
900                                                       FeatureDotProd]>;
901def ARMv91a   : Architecture<"armv9.1-a", "ARMv91a",   [HasV9_1aOps,
902                                                       FeatureAClass,
903                                                       FeatureDB,
904                                                       FeatureFPARMv8,
905                                                       FeatureNEON,
906                                                       FeatureDSP,
907                                                       FeatureTrustZone,
908                                                       FeatureMP,
909                                                       FeatureVirtualization,
910                                                       FeatureCRC,
911                                                       FeatureRAS,
912                                                       FeatureDotProd]>;
913def ARMv92a   : Architecture<"armv9.2-a", "ARMv92a",  [HasV9_2aOps,
914                                                       FeatureAClass,
915                                                       FeatureDB,
916                                                       FeatureFPARMv8,
917                                                       FeatureNEON,
918                                                       FeatureDSP,
919                                                       FeatureTrustZone,
920                                                       FeatureMP,
921                                                       FeatureVirtualization,
922                                                       FeatureCRC,
923                                                       FeatureRAS,
924                                                       FeatureDotProd]>;
925
926def ARMv8r    : Architecture<"armv8-r",   "ARMv8r",   [HasV8Ops,
927                                                       FeatureRClass,
928                                                       FeatureDB,
929                                                       FeatureDFB,
930                                                       FeatureDSP,
931                                                       FeatureCRC,
932                                                       FeatureMP,
933                                                       FeatureVirtualization,
934                                                       FeatureFPARMv8,
935                                                       FeatureNEON]>;
936
937def ARMv8mBaseline : Architecture<"armv8-m.base", "ARMv8mBaseline",
938                                                      [HasV8MBaselineOps,
939                                                       FeatureNoARM,
940                                                       ModeThumb,
941                                                       FeatureDB,
942                                                       FeatureHWDivThumb,
943                                                       FeatureV7Clrex,
944                                                       Feature8MSecExt,
945                                                       FeatureAcquireRelease,
946                                                       FeatureMClass,
947                                                       FeatureStrictAlign]>;
948
949def ARMv8mMainline : Architecture<"armv8-m.main", "ARMv8mMainline",
950                                                      [HasV8MMainlineOps,
951                                                       FeatureNoARM,
952                                                       ModeThumb,
953                                                       FeatureDB,
954                                                       FeatureHWDivThumb,
955                                                       Feature8MSecExt,
956                                                       FeatureAcquireRelease,
957                                                       FeatureMClass]>;
958
959def ARMv81mMainline : Architecture<"armv8.1-m.main", "ARMv81mMainline",
960                                                      [HasV8_1MMainlineOps,
961                                                       FeatureNoARM,
962                                                       ModeThumb,
963                                                       FeatureDB,
964                                                       FeatureHWDivThumb,
965                                                       Feature8MSecExt,
966                                                       FeatureAcquireRelease,
967                                                       FeatureMClass,
968                                                       FeatureRAS,
969                                                       FeatureLOB]>;
970
971// Aliases
972def IWMMXT   : Architecture<"iwmmxt",      "ARMv5te",  [ARMv5te]>;
973def IWMMXT2  : Architecture<"iwmmxt2",     "ARMv5te",  [ARMv5te]>;
974def XScale   : Architecture<"xscale",      "ARMv5te",  [ARMv5te]>;
975def ARMv6j   : Architecture<"armv6j",      "ARMv7a",   [ARMv6]>;
976def ARMv7k   : Architecture<"armv7k",      "ARMv7a",   [ARMv7a]>;
977def ARMv7s   : Architecture<"armv7s",      "ARMv7a",   [ARMv7a]>;
978
979//===----------------------------------------------------------------------===//
980// Register File Description
981//===----------------------------------------------------------------------===//
982
983include "ARMRegisterInfo.td"
984include "ARMRegisterBanks.td"
985include "ARMCallingConv.td"
986
987//===----------------------------------------------------------------------===//
988// ARM schedules.
989//===----------------------------------------------------------------------===//
990//
991include "ARMPredicates.td"
992include "ARMSchedule.td"
993
994//===----------------------------------------------------------------------===//
995// Instruction Descriptions
996//===----------------------------------------------------------------------===//
997
998include "ARMInstrInfo.td"
999def ARMInstrInfo : InstrInfo;
1000
1001//===----------------------------------------------------------------------===//
1002// ARM schedules
1003//
1004include "ARMScheduleV6.td"
1005include "ARMScheduleA8.td"
1006include "ARMScheduleA9.td"
1007include "ARMScheduleSwift.td"
1008include "ARMScheduleR52.td"
1009include "ARMScheduleA57.td"
1010include "ARMScheduleM4.td"
1011include "ARMScheduleM7.td"
1012
1013//===----------------------------------------------------------------------===//
1014// ARM processors
1015//
1016// Dummy CPU, used to target architectures
1017def : ProcessorModel<"generic",     CortexA8Model,      []>;
1018
1019// FIXME: Several processors below are not using their own scheduler
1020// model, but one of similar/previous processor. These should be fixed.
1021
1022def : ProcNoItin<"arm8",                                [ARMv4]>;
1023def : ProcNoItin<"arm810",                              [ARMv4]>;
1024def : ProcNoItin<"strongarm",                           [ARMv4]>;
1025def : ProcNoItin<"strongarm110",                        [ARMv4]>;
1026def : ProcNoItin<"strongarm1100",                       [ARMv4]>;
1027def : ProcNoItin<"strongarm1110",                       [ARMv4]>;
1028
1029def : ProcNoItin<"arm7tdmi",                            [ARMv4t]>;
1030def : ProcNoItin<"arm7tdmi-s",                          [ARMv4t]>;
1031def : ProcNoItin<"arm710t",                             [ARMv4t]>;
1032def : ProcNoItin<"arm720t",                             [ARMv4t]>;
1033def : ProcNoItin<"arm9",                                [ARMv4t]>;
1034def : ProcNoItin<"arm9tdmi",                            [ARMv4t]>;
1035def : ProcNoItin<"arm920",                              [ARMv4t]>;
1036def : ProcNoItin<"arm920t",                             [ARMv4t]>;
1037def : ProcNoItin<"arm922t",                             [ARMv4t]>;
1038def : ProcNoItin<"arm940t",                             [ARMv4t]>;
1039def : ProcNoItin<"ep9312",                              [ARMv4t]>;
1040
1041def : ProcNoItin<"arm10tdmi",                           [ARMv5t]>;
1042def : ProcNoItin<"arm1020t",                            [ARMv5t]>;
1043
1044def : ProcNoItin<"arm9e",                               [ARMv5te]>;
1045def : ProcNoItin<"arm926ej-s",                          [ARMv5te]>;
1046def : ProcNoItin<"arm946e-s",                           [ARMv5te]>;
1047def : ProcNoItin<"arm966e-s",                           [ARMv5te]>;
1048def : ProcNoItin<"arm968e-s",                           [ARMv5te]>;
1049def : ProcNoItin<"arm10e",                              [ARMv5te]>;
1050def : ProcNoItin<"arm1020e",                            [ARMv5te]>;
1051def : ProcNoItin<"arm1022e",                            [ARMv5te]>;
1052def : ProcNoItin<"xscale",                              [ARMv5te]>;
1053def : ProcNoItin<"iwmmxt",                              [ARMv5te]>;
1054
1055def : Processor<"arm1136j-s",       ARMV6Itineraries,   [ARMv6]>;
1056def : Processor<"arm1136jf-s",      ARMV6Itineraries,   [ARMv6,
1057                                                         FeatureVFP2,
1058                                                         FeatureHasSlowFPVMLx]>;
1059
1060def : Processor<"cortex-m0",        ARMV6Itineraries,   [ARMv6m,
1061                                                         FeatureHasNoBranchPredictor]>;
1062def : Processor<"cortex-m0plus",    ARMV6Itineraries,   [ARMv6m,
1063                                                         FeatureHasNoBranchPredictor]>;
1064def : Processor<"cortex-m1",        ARMV6Itineraries,   [ARMv6m,
1065                                                         FeatureHasNoBranchPredictor]>;
1066def : Processor<"sc000",            ARMV6Itineraries,   [ARMv6m,
1067                                                         FeatureHasNoBranchPredictor]>;
1068
1069def : Processor<"arm1176jz-s",      ARMV6Itineraries,   [ARMv6kz]>;
1070def : Processor<"arm1176jzf-s",     ARMV6Itineraries,   [ARMv6kz,
1071                                                         FeatureVFP2,
1072                                                         FeatureHasSlowFPVMLx]>;
1073
1074def : Processor<"mpcorenovfp",      ARMV6Itineraries,   [ARMv6k]>;
1075def : Processor<"mpcore",           ARMV6Itineraries,   [ARMv6k,
1076                                                         FeatureVFP2,
1077                                                         FeatureHasSlowFPVMLx]>;
1078
1079def : Processor<"arm1156t2-s",      ARMV6Itineraries,   [ARMv6t2]>;
1080def : Processor<"arm1156t2f-s",     ARMV6Itineraries,   [ARMv6t2,
1081                                                         FeatureVFP2,
1082                                                         FeatureHasSlowFPVMLx]>;
1083
1084def : ProcessorModel<"cortex-a5",   CortexA8Model,      [ARMv7a, ProcA5,
1085                                                         FeatureHasRetAddrStack,
1086                                                         FeatureTrustZone,
1087                                                         FeatureSlowFPBrcc,
1088                                                         FeatureHasSlowFPVMLx,
1089                                                         FeatureHasSlowFPVFMx,
1090                                                         FeatureVMLxForwarding,
1091                                                         FeatureMP,
1092                                                         FeatureVFP4]>;
1093
1094def : ProcessorModel<"cortex-a7",   CortexA8Model,      [ARMv7a, ProcA7,
1095                                                         FeatureHasRetAddrStack,
1096                                                         FeatureTrustZone,
1097                                                         FeatureSlowFPBrcc,
1098                                                         FeatureHasVMLxHazards,
1099                                                         FeatureHasSlowFPVMLx,
1100                                                         FeatureHasSlowFPVFMx,
1101                                                         FeatureVMLxForwarding,
1102                                                         FeatureMP,
1103                                                         FeatureVFP4,
1104                                                         FeatureVirtualization]>;
1105
1106def : ProcessorModel<"cortex-a8",   CortexA8Model,      [ARMv7a, ProcA8,
1107                                                         FeatureHasRetAddrStack,
1108                                                         FeatureNonpipelinedVFP,
1109                                                         FeatureTrustZone,
1110                                                         FeatureSlowFPBrcc,
1111                                                         FeatureHasVMLxHazards,
1112                                                         FeatureHasSlowFPVMLx,
1113                                                         FeatureHasSlowFPVFMx,
1114                                                         FeatureVMLxForwarding]>;
1115
1116def : ProcessorModel<"cortex-a9",   CortexA9Model,      [ARMv7a, ProcA9,
1117                                                         FeatureHasRetAddrStack,
1118                                                         FeatureTrustZone,
1119                                                         FeatureHasVMLxHazards,
1120                                                         FeatureVMLxForwarding,
1121                                                         FeatureFP16,
1122                                                         FeatureAvoidPartialCPSR,
1123                                                         FeatureExpandMLx,
1124                                                         FeaturePreferVMOVSR,
1125                                                         FeatureMuxedUnits,
1126                                                         FeatureNEONForFPMovs,
1127                                                         FeatureCheckVLDnAlign,
1128                                                         FeatureMP]>;
1129
1130def : ProcessorModel<"cortex-a12",  CortexA9Model,      [ARMv7a, ProcA12,
1131                                                         FeatureHasRetAddrStack,
1132                                                         FeatureTrustZone,
1133                                                         FeatureVMLxForwarding,
1134                                                         FeatureVFP4,
1135                                                         FeatureAvoidPartialCPSR,
1136                                                         FeatureVirtualization,
1137                                                         FeatureMP]>;
1138
1139def : ProcessorModel<"cortex-a15",  CortexA9Model,      [ARMv7a, ProcA15,
1140                                                         FeatureDontWidenVMOVS,
1141                                                         FeatureSplatVFPToNeon,
1142                                                         FeatureHasRetAddrStack,
1143                                                         FeatureMuxedUnits,
1144                                                         FeatureTrustZone,
1145                                                         FeatureVFP4,
1146                                                         FeatureMP,
1147                                                         FeatureCheckVLDnAlign,
1148                                                         FeatureAvoidPartialCPSR,
1149                                                         FeatureVirtualization]>;
1150
1151def : ProcessorModel<"cortex-a17",  CortexA9Model,      [ARMv7a, ProcA17,
1152                                                         FeatureHasRetAddrStack,
1153                                                         FeatureTrustZone,
1154                                                         FeatureMP,
1155                                                         FeatureVMLxForwarding,
1156                                                         FeatureVFP4,
1157                                                         FeatureAvoidPartialCPSR,
1158                                                         FeatureVirtualization]>;
1159
1160// FIXME: krait has currently the same features as A9 plus VFP4 and  HWDiv
1161def : ProcessorModel<"krait",       CortexA9Model,      [ARMv7a, ProcKrait,
1162                                                         FeatureHasRetAddrStack,
1163                                                         FeatureMuxedUnits,
1164                                                         FeatureCheckVLDnAlign,
1165                                                         FeatureVMLxForwarding,
1166                                                         FeatureFP16,
1167                                                         FeatureAvoidPartialCPSR,
1168                                                         FeatureVFP4,
1169                                                         FeatureHWDivThumb,
1170                                                         FeatureHWDivARM]>;
1171
1172def : ProcessorModel<"swift",       SwiftModel,         [ARMv7a, ProcSwift,
1173                                                         FeatureHasRetAddrStack,
1174                                                         FeatureNEONForFP,
1175                                                         FeatureVFP4,
1176                                                         FeatureUseWideStrideVFP,
1177                                                         FeatureMP,
1178                                                         FeatureHWDivThumb,
1179                                                         FeatureHWDivARM,
1180                                                         FeatureAvoidPartialCPSR,
1181                                                         FeatureAvoidMOVsShOp,
1182                                                         FeatureHasSlowFPVMLx,
1183                                                         FeatureHasSlowFPVFMx,
1184                                                         FeatureHasVMLxHazards,
1185                                                         FeatureProfUnpredicate,
1186                                                         FeaturePrefISHSTBarrier,
1187                                                         FeatureSlowOddRegister,
1188                                                         FeatureSlowLoadDSubreg,
1189                                                         FeatureSlowVGETLNi32,
1190                                                         FeatureSlowVDUP32,
1191                                                         FeatureUseMISched,
1192                                                         FeatureNoPostRASched]>;
1193
1194def : ProcessorModel<"cortex-r4",   CortexA8Model,      [ARMv7r, ProcR4,
1195                                                         FeatureHasRetAddrStack,
1196                                                         FeatureAvoidPartialCPSR]>;
1197
1198def : ProcessorModel<"cortex-r4f",  CortexA8Model,      [ARMv7r, ProcR4,
1199                                                         FeatureHasRetAddrStack,
1200                                                         FeatureSlowFPBrcc,
1201                                                         FeatureHasSlowFPVMLx,
1202                                                         FeatureHasSlowFPVFMx,
1203                                                         FeatureVFP3_D16,
1204                                                         FeatureAvoidPartialCPSR]>;
1205
1206def : ProcessorModel<"cortex-r5",   CortexA8Model,      [ARMv7r, ProcR5,
1207                                                         FeatureHasRetAddrStack,
1208                                                         FeatureVFP3_D16,
1209                                                         FeatureSlowFPBrcc,
1210                                                         FeatureHWDivARM,
1211                                                         FeatureHasSlowFPVMLx,
1212                                                         FeatureHasSlowFPVFMx,
1213                                                         FeatureAvoidPartialCPSR]>;
1214
1215def : ProcessorModel<"cortex-r7",   CortexA8Model,      [ARMv7r, ProcR7,
1216                                                         FeatureHasRetAddrStack,
1217                                                         FeatureVFP3_D16,
1218                                                         FeatureFP16,
1219                                                         FeatureMP,
1220                                                         FeatureSlowFPBrcc,
1221                                                         FeatureHWDivARM,
1222                                                         FeatureHasSlowFPVMLx,
1223                                                         FeatureHasSlowFPVFMx,
1224                                                         FeatureAvoidPartialCPSR]>;
1225
1226def : ProcessorModel<"cortex-r8",   CortexA8Model,      [ARMv7r,
1227                                                         FeatureHasRetAddrStack,
1228                                                         FeatureVFP3_D16,
1229                                                         FeatureFP16,
1230                                                         FeatureMP,
1231                                                         FeatureSlowFPBrcc,
1232                                                         FeatureHWDivARM,
1233                                                         FeatureHasSlowFPVMLx,
1234                                                         FeatureHasSlowFPVFMx,
1235                                                         FeatureAvoidPartialCPSR]>;
1236
1237def : ProcessorModel<"cortex-m3",   CortexM4Model,      [ARMv7m,
1238                                                         ProcM3,
1239                                                         FeaturePrefLoopAlign32,
1240                                                         FeatureUseMISched,
1241                                                         FeatureHasNoBranchPredictor]>;
1242
1243def : ProcessorModel<"sc300",       CortexM4Model,      [ARMv7m,
1244                                                         ProcM3,
1245                                                         FeatureUseMISched,
1246                                                         FeatureHasNoBranchPredictor]>;
1247
1248def : ProcessorModel<"cortex-m4", CortexM4Model,        [ARMv7em,
1249                                                         FeatureVFP4_D16_SP,
1250                                                         FeaturePrefLoopAlign32,
1251                                                         FeatureHasSlowFPVMLx,
1252                                                         FeatureHasSlowFPVFMx,
1253                                                         FeatureUseMISched,
1254                                                         FeatureHasNoBranchPredictor]>;
1255
1256def : ProcessorModel<"cortex-m7", CortexM7Model,        [ARMv7em,
1257                                                         ProcM7,
1258                                                         FeatureFPARMv8_D16,
1259                                                         FeatureUseMISched]>;
1260
1261def : ProcNoItin<"cortex-m23",                          [ARMv8mBaseline,
1262                                                         FeatureNoMovt,
1263                                                         FeatureHasNoBranchPredictor]>;
1264
1265def : ProcessorModel<"cortex-m33", CortexM4Model,       [ARMv8mMainline,
1266                                                         FeatureDSP,
1267                                                         FeatureFPARMv8_D16_SP,
1268                                                         FeaturePrefLoopAlign32,
1269                                                         FeatureHasSlowFPVMLx,
1270                                                         FeatureHasSlowFPVFMx,
1271                                                         FeatureUseMISched,
1272                                                         FeatureHasNoBranchPredictor,
1273                                                         FeatureFixCMSE_CVE_2021_35465]>;
1274
1275def : ProcessorModel<"cortex-m35p", CortexM4Model,      [ARMv8mMainline,
1276                                                         FeatureDSP,
1277                                                         FeatureFPARMv8_D16_SP,
1278                                                         FeaturePrefLoopAlign32,
1279                                                         FeatureHasSlowFPVMLx,
1280                                                         FeatureHasSlowFPVFMx,
1281                                                         FeatureUseMISched,
1282                                                         FeatureHasNoBranchPredictor,
1283                                                         FeatureFixCMSE_CVE_2021_35465]>;
1284
1285def : ProcessorModel<"cortex-m55", CortexM4Model,      [ARMv81mMainline,
1286                                                         FeatureDSP,
1287                                                         FeatureFPARMv8_D16,
1288                                                         FeatureUseMISched,
1289                                                         FeatureHasNoBranchPredictor,
1290                                                         FeaturePrefLoopAlign32,
1291                                                         FeatureHasSlowFPVMLx,
1292                                                         HasMVEFloatOps,
1293                                                         FeatureFixCMSE_CVE_2021_35465]>;
1294
1295def : ProcNoItin<"cortex-a32",                           [ARMv8a,
1296                                                         FeatureHWDivThumb,
1297                                                         FeatureHWDivARM,
1298                                                         FeatureCrypto,
1299                                                         FeatureCRC]>;
1300
1301def : ProcNoItin<"cortex-a35",                          [ARMv8a, ProcA35,
1302                                                         FeatureHWDivThumb,
1303                                                         FeatureHWDivARM,
1304                                                         FeatureCrypto,
1305                                                         FeatureCRC]>;
1306
1307def : ProcNoItin<"cortex-a53",                          [ARMv8a, ProcA53,
1308                                                         FeatureHWDivThumb,
1309                                                         FeatureHWDivARM,
1310                                                         FeatureCrypto,
1311                                                         FeatureCRC,
1312                                                         FeatureFPAO]>;
1313
1314def : ProcNoItin<"cortex-a55",                          [ARMv82a, ProcA55,
1315                                                         FeatureHWDivThumb,
1316                                                         FeatureHWDivARM,
1317                                                         FeatureDotProd]>;
1318
1319def : ProcessorModel<"cortex-a57",  CortexA57Model,     [ARMv8a, ProcA57,
1320                                                         FeatureHWDivThumb,
1321                                                         FeatureHWDivARM,
1322                                                         FeatureCrypto,
1323                                                         FeatureCRC,
1324                                                         FeatureFPAO,
1325                                                         FeatureAvoidPartialCPSR,
1326                                                         FeatureCheapPredicableCPSR]>;
1327
1328def : ProcessorModel<"cortex-a72",  CortexA57Model,     [ARMv8a, ProcA72,
1329                                                         FeatureHWDivThumb,
1330                                                         FeatureHWDivARM,
1331                                                         FeatureCrypto,
1332                                                         FeatureCRC]>;
1333
1334def : ProcNoItin<"cortex-a73",                          [ARMv8a, ProcA73,
1335                                                         FeatureHWDivThumb,
1336                                                         FeatureHWDivARM,
1337                                                         FeatureCrypto,
1338                                                         FeatureCRC]>;
1339
1340def : ProcNoItin<"cortex-a75",                          [ARMv82a, ProcA75,
1341                                                         FeatureHWDivThumb,
1342                                                         FeatureHWDivARM,
1343                                                         FeatureDotProd]>;
1344
1345def : ProcNoItin<"cortex-a76",                          [ARMv82a, ProcA76,
1346                                                         FeatureHWDivThumb,
1347                                                         FeatureHWDivARM,
1348                                                         FeatureCrypto,
1349                                                         FeatureCRC,
1350                                                         FeatureFullFP16,
1351                                                         FeatureDotProd]>;
1352
1353def : ProcNoItin<"cortex-a76ae",                        [ARMv82a, ProcA76,
1354                                                         FeatureHWDivThumb,
1355                                                         FeatureHWDivARM,
1356                                                         FeatureCrypto,
1357                                                         FeatureCRC,
1358                                                         FeatureFullFP16,
1359                                                         FeatureDotProd]>;
1360
1361def : ProcNoItin<"cortex-a77",                          [ARMv82a, ProcA77,
1362                                                         FeatureHWDivThumb,
1363                                                         FeatureHWDivARM,
1364                                                         FeatureCrypto,
1365                                                         FeatureCRC,
1366                                                         FeatureFullFP16,
1367                                                         FeatureDotProd]>;
1368
1369def : ProcNoItin<"cortex-a78",                          [ARMv82a, ProcA78,
1370                                                         FeatureHWDivThumb,
1371                                                         FeatureHWDivARM,
1372                                                         FeatureCrypto,
1373                                                         FeatureCRC,
1374                                                         FeatureFullFP16,
1375                                                         FeatureDotProd]>;
1376
1377def : ProcNoItin<"cortex-a78c",                         [ARMv82a, ProcA78C,
1378                                                         FeatureHWDivThumb,
1379                                                         FeatureHWDivARM,
1380                                                         FeatureCrypto,
1381                                                         FeatureCRC,
1382                                                         FeatureDotProd,
1383                                                         FeatureFullFP16]>;
1384
1385def : ProcNoItin<"cortex-a710",                         [ARMv9a, ProcA710,
1386                                                         FeatureHWDivThumb,
1387                                                         FeatureHWDivARM,
1388                                                         FeatureFP16FML,
1389                                                         FeatureBF16,
1390                                                         FeatureMatMulInt8,
1391                                                         FeatureSB]>;
1392
1393def : ProcNoItin<"cortex-x1",                           [ARMv82a, ProcX1,
1394                                                         FeatureHWDivThumb,
1395                                                         FeatureHWDivARM,
1396                                                         FeatureCrypto,
1397                                                         FeatureCRC,
1398                                                         FeatureFullFP16,
1399                                                         FeatureDotProd]>;
1400
1401def : ProcNoItin<"neoverse-v1",                         [ARMv84a,
1402                                                         FeatureHWDivThumb,
1403                                                         FeatureHWDivARM,
1404                                                         FeatureCrypto,
1405                                                         FeatureCRC,
1406                                                         FeatureFullFP16,
1407                                                         FeatureBF16,
1408                                                         FeatureMatMulInt8]>;
1409
1410def : ProcNoItin<"neoverse-n1",                         [ARMv82a,
1411                                                         FeatureHWDivThumb,
1412                                                         FeatureHWDivARM,
1413                                                         FeatureCrypto,
1414                                                         FeatureCRC,
1415                                                         FeatureDotProd]>;
1416
1417def : ProcNoItin<"neoverse-n2",                         [ARMv85a,
1418                                                         FeatureBF16,
1419                                                         FeatureMatMulInt8,
1420                                                         FeaturePerfMon]>;
1421
1422def : ProcessorModel<"cyclone",     SwiftModel,         [ARMv8a, ProcSwift,
1423                                                         FeatureHasRetAddrStack,
1424                                                         FeatureNEONForFP,
1425                                                         FeatureVFP4,
1426                                                         FeatureMP,
1427                                                         FeatureHWDivThumb,
1428                                                         FeatureHWDivARM,
1429                                                         FeatureAvoidPartialCPSR,
1430                                                         FeatureAvoidMOVsShOp,
1431                                                         FeatureHasSlowFPVMLx,
1432                                                         FeatureHasSlowFPVFMx,
1433                                                         FeatureCrypto,
1434                                                         FeatureUseMISched,
1435                                                         FeatureZCZeroing,
1436                                                         FeatureNoPostRASched]>;
1437
1438def : ProcNoItin<"exynos-m3",                           [ARMv8a, ProcExynos]>;
1439def : ProcNoItin<"exynos-m4",                           [ARMv82a, ProcExynos,
1440                                                         FeatureFullFP16,
1441                                                         FeatureDotProd]>;
1442def : ProcNoItin<"exynos-m5",                           [ARMv82a, ProcExynos,
1443                                                         FeatureFullFP16,
1444                                                         FeatureDotProd]>;
1445
1446def : ProcNoItin<"kryo",                                [ARMv8a, ProcKryo,
1447                                                         FeatureHWDivThumb,
1448                                                         FeatureHWDivARM,
1449                                                         FeatureCrypto,
1450                                                         FeatureCRC]>;
1451
1452def : ProcessorModel<"cortex-r52", CortexR52Model,      [ARMv8r, ProcR52,
1453                                                         FeatureUseMISched,
1454                                                         FeatureFPAO]>;
1455
1456//===----------------------------------------------------------------------===//
1457// Declare the target which we are implementing
1458//===----------------------------------------------------------------------===//
1459
1460def ARMAsmWriter : AsmWriter {
1461  string AsmWriterClassName  = "InstPrinter";
1462  int PassSubtarget = 1;
1463  int Variant = 0;
1464  bit isMCAsmWriter = 1;
1465}
1466
1467def ARMAsmParser : AsmParser {
1468  bit ReportMultipleNearMisses = 1;
1469}
1470
1471def ARMAsmParserVariant : AsmParserVariant {
1472  int Variant = 0;
1473  string Name = "ARM";
1474  string BreakCharacters = ".";
1475}
1476
1477def ARM : Target {
1478  // Pull in Instruction Info.
1479  let InstructionSet = ARMInstrInfo;
1480  let AssemblyWriters = [ARMAsmWriter];
1481  let AssemblyParsers = [ARMAsmParser];
1482  let AssemblyParserVariants = [ARMAsmParserVariant];
1483  let AllowRegisterRenaming = 1;
1484}
1485