LLVM  14.0.0git
AArch64TargetParser.cpp
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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 
15 #include "llvm/ADT/StringSwitch.h"
16 #include "llvm/ADT/Triple.h"
17 #include <cctype>
18 
19 using namespace llvm;
20 
21 static unsigned checkArchVersion(llvm::StringRef Arch) {
22  if (Arch.size() >= 2 && Arch[0] == 'v' && std::isdigit(Arch[1]))
23  return (Arch[1] - 48);
24  return 0;
25 }
26 
28  if (CPU == "generic")
29  return AArch64ARCHNames[static_cast<unsigned>(AK)].DefaultFPU;
30 
31  return StringSwitch<unsigned>(CPU)
32 #define AARCH64_CPU_NAME(NAME, ID, DEFAULT_FPU, IS_DEFAULT, DEFAULT_EXT) \
33  .Case(NAME, ARM::DEFAULT_FPU)
34 #include "../../include/llvm/Support/AArch64TargetParser.def"
36 }
37 
39  if (CPU == "generic")
40  return AArch64ARCHNames[static_cast<unsigned>(AK)].ArchBaseExtensions;
41 
42  return StringSwitch<uint64_t>(CPU)
43 #define AARCH64_CPU_NAME(NAME, ID, DEFAULT_FPU, IS_DEFAULT, DEFAULT_EXT) \
44  .Case(NAME, AArch64ARCHNames[static_cast<unsigned>(ArchKind::ID)] \
45  .ArchBaseExtensions | \
46  DEFAULT_EXT)
47 #include "../../include/llvm/Support/AArch64TargetParser.def"
49 }
50 
52  if (CPU == "generic")
53  return ArchKind::ARMV8A;
54 
56 #define AARCH64_CPU_NAME(NAME, ID, DEFAULT_FPU, IS_DEFAULT, DEFAULT_EXT) \
57  .Case(NAME, ArchKind::ID)
58 #include "../../include/llvm/Support/AArch64TargetParser.def"
59  .Default(ArchKind::INVALID);
60 }
61 
63  std::vector<StringRef> &Features) {
64  if (Extensions == AArch64::AEK_INVALID)
65  return false;
66 
67  if (Extensions & AEK_FP)
68  Features.push_back("+fp-armv8");
69  if (Extensions & AEK_SIMD)
70  Features.push_back("+neon");
71  if (Extensions & AEK_CRC)
72  Features.push_back("+crc");
73  if (Extensions & AEK_CRYPTO)
74  Features.push_back("+crypto");
75  if (Extensions & AEK_DOTPROD)
76  Features.push_back("+dotprod");
77  if (Extensions & AEK_FP16FML)
78  Features.push_back("+fp16fml");
79  if (Extensions & AEK_FP16)
80  Features.push_back("+fullfp16");
81  if (Extensions & AEK_PROFILE)
82  Features.push_back("+spe");
83  if (Extensions & AEK_RAS)
84  Features.push_back("+ras");
85  if (Extensions & AEK_LSE)
86  Features.push_back("+lse");
87  if (Extensions & AEK_RDM)
88  Features.push_back("+rdm");
89  if (Extensions & AEK_SVE)
90  Features.push_back("+sve");
91  if (Extensions & AEK_SVE2)
92  Features.push_back("+sve2");
93  if (Extensions & AEK_SVE2AES)
94  Features.push_back("+sve2-aes");
95  if (Extensions & AEK_SVE2SM4)
96  Features.push_back("+sve2-sm4");
97  if (Extensions & AEK_SVE2SHA3)
98  Features.push_back("+sve2-sha3");
99  if (Extensions & AEK_SVE2BITPERM)
100  Features.push_back("+sve2-bitperm");
101  if (Extensions & AArch64::AEK_TME)
102  Features.push_back("+tme");
103  if (Extensions & AEK_RCPC)
104  Features.push_back("+rcpc");
105  if (Extensions & AEK_BRBE)
106  Features.push_back("+brbe");
107  if (Extensions & AEK_PAUTH)
108  Features.push_back("+pauth");
109  if (Extensions & AEK_FLAGM)
110  Features.push_back("+flagm");
111  if (Extensions & AArch64::AEK_SME)
112  Features.push_back("+sme");
113  if (Extensions & AArch64::AEK_SMEF64)
114  Features.push_back("+sme-f64");
115  if (Extensions & AArch64::AEK_SMEI64)
116  Features.push_back("+sme-i64");
117  if (Extensions & AArch64::AEK_HBC)
118  Features.push_back("+hbc");
119  if (Extensions & AArch64::AEK_MOPS)
120  Features.push_back("+mops");
121  if (Extensions & AArch64::AEK_PERFMON)
122  Features.push_back("+perfmon");
123 
124  return true;
125 }
126 
128  std::vector<StringRef> &Features) {
129  if (AK == ArchKind::ARMV8A)
130  Features.push_back("+v8a");
131  if (AK == ArchKind::ARMV8_1A)
132  Features.push_back("+v8.1a");
133  if (AK == ArchKind::ARMV8_2A)
134  Features.push_back("+v8.2a");
135  if (AK == ArchKind::ARMV8_3A)
136  Features.push_back("+v8.3a");
137  if (AK == ArchKind::ARMV8_4A)
138  Features.push_back("+v8.4a");
139  if (AK == ArchKind::ARMV8_5A)
140  Features.push_back("+v8.5a");
141  if (AK == AArch64::ArchKind::ARMV8_6A)
142  Features.push_back("+v8.6a");
143  if (AK == AArch64::ArchKind::ARMV8_7A)
144  Features.push_back("+v8.7a");
145  if (AK == AArch64::ArchKind::ARMV8_8A)
146  Features.push_back("+v8.8a");
147  if (AK == AArch64::ArchKind::ARMV9A)
148  Features.push_back("+v9a");
149  if (AK == AArch64::ArchKind::ARMV9_1A)
150  Features.push_back("+v9.1a");
151  if (AK == AArch64::ArchKind::ARMV9_2A)
152  Features.push_back("+v9.2a");
153  if (AK == AArch64::ArchKind::ARMV9_3A)
154  Features.push_back("+v9.3a");
155  if(AK == AArch64::ArchKind::ARMV8R)
156  Features.push_back("+v8r");
157 
158  return AK != ArchKind::INVALID;
159 }
160 
162  return AArch64ARCHNames[static_cast<unsigned>(AK)].getName();
163 }
164 
166  return AArch64ARCHNames[static_cast<unsigned>(AK)].getCPUAttr();
167 }
168 
170  return AArch64ARCHNames[static_cast<unsigned>(AK)].getSubArch();
171 }
172 
174  return AArch64ARCHNames[static_cast<unsigned>(AK)].ArchAttr;
175 }
176 
178  for (const auto &AE : AArch64ARCHExtNames)
179  if (ArchExtKind == AE.ID)
180  return AE.getName();
181  return StringRef();
182 }
183 
185  if (ArchExt.startswith("no")) {
186  StringRef ArchExtBase(ArchExt.substr(2));
187  for (const auto &AE : AArch64ARCHExtNames) {
188  if (AE.NegFeature && ArchExtBase == AE.getName())
189  return StringRef(AE.NegFeature);
190  }
191  }
192 
193  for (const auto &AE : AArch64ARCHExtNames)
194  if (AE.Feature && ArchExt == AE.getName())
195  return StringRef(AE.Feature);
196  return StringRef();
197 }
198 
200  ArchKind AK = parseArch(Arch);
201  if (AK == ArchKind::INVALID)
202  return StringRef();
203 
204  // Look for multiple AKs to find the default for pair AK+Name.
205  for (const auto &CPU : AArch64CPUNames)
206  if (CPU.ArchID == AK && CPU.Default)
207  return CPU.getName();
208 
209  // If we can't find a default then target the architecture instead
210  return "generic";
211 }
212 
214  for (const auto &Arch : AArch64CPUNames) {
215  if (Arch.ArchID != ArchKind::INVALID)
216  Values.push_back(Arch.getName());
217  }
218 }
219 
221  return TT.isAndroid() || TT.isOSDarwin() || TT.isOSFuchsia() ||
222  TT.isOSWindows();
223 }
224 
225 // Allows partial match, ex. "v8a" matches "armv8a".
227  Arch = ARM::getCanonicalArchName(Arch);
228  if (checkArchVersion(Arch) < 8)
229  return ArchKind::INVALID;
230 
231  StringRef Syn = ARM::getArchSynonym(Arch);
232  for (const auto &A : AArch64ARCHNames) {
233  if (A.getName().endswith(Syn))
234  return A.ID;
235  }
236  return ArchKind::INVALID;
237 }
238 
240  for (const auto &A : AArch64ARCHExtNames) {
241  if (ArchExt == A.getName())
242  return static_cast<ArchExtKind>(A.ID);
243  }
244  return AArch64::AEK_INVALID;
245 }
246 
248  for (const auto &C : AArch64CPUNames) {
249  if (CPU == C.getName())
250  return C.ArchID;
251  }
252  return ArchKind::INVALID;
253 }
llvm::AArch64::getArchFeatures
bool getArchFeatures(ArchKind AK, std::vector< StringRef > &Features)
Definition: AArch64TargetParser.cpp:127
llvm::StringRef::startswith
LLVM_NODISCARD bool startswith(StringRef Prefix) const
Check if this string starts with the given Prefix.
Definition: StringRef.h:286
getName
static StringRef getName(Value *V)
Definition: ProvenanceAnalysisEvaluator.cpp:42
llvm
This is an optimization pass for GlobalISel generic memory operations.
Definition: AllocatorList.h:22
llvm::AArch64::ArchExtKind
ArchExtKind
Definition: AArch64TargetParser.h:29
llvm::AArch64::AEK_RCPC
@ AEK_RCPC
Definition: AArch64TargetParser.h:42
llvm::AArch64::AEK_SVE2
@ AEK_SVE2
Definition: AArch64TargetParser.h:54
llvm::ARM::getCanonicalArchName
StringRef getCanonicalArchName(StringRef Arch)
Definition: ARMTargetParser.cpp:295
AArch64TargetParser.h
llvm::AArch64::AEK_SIMD
@ AEK_SIMD
Definition: AArch64TargetParser.h:35
llvm::AArch64::AEK_SMEF64
@ AEK_SMEF64
Definition: AArch64TargetParser.h:69
llvm::AArch64::AEK_CRYPTO
@ AEK_CRYPTO
Definition: AArch64TargetParser.h:33
llvm::StringSwitch::Default
LLVM_NODISCARD R Default(T Value)
Definition: StringSwitch.h:182
llvm::AArch64::getExtensionFeatures
bool getExtensionFeatures(uint64_t Extensions, std::vector< StringRef > &Features)
Definition: AArch64TargetParser.cpp:62
llvm::AArch64::AEK_TME
@ AEK_TME
Definition: AArch64TargetParser.h:59
llvm::AArch64::AEK_PERFMON
@ AEK_PERFMON
Definition: AArch64TargetParser.h:73
llvm::Triple
Triple - Helper class for working with autoconf configuration names.
Definition: Triple.h:44
llvm::ARM::getArchSynonym
StringRef getArchSynonym(StringRef Arch)
Definition: ARMTargetParser.cpp:151
llvm::AArch64::getCPUAttr
StringRef getCPUAttr(ArchKind AK)
Definition: AArch64TargetParser.cpp:165
llvm::AArch64::AEK_FP16
@ AEK_FP16
Definition: AArch64TargetParser.h:36
llvm::AArch64::parseArchExt
ArchExtKind parseArchExt(StringRef ArchExt)
Definition: AArch64TargetParser.cpp:239
llvm::AArch64::AEK_SVE2SM4
@ AEK_SVE2SM4
Definition: AArch64TargetParser.h:56
llvm::AArch64::getArchExtName
StringRef getArchExtName(unsigned ArchExtKind)
Definition: AArch64TargetParser.cpp:177
llvm::AArch64::getDefaultExtensions
uint64_t getDefaultExtensions(StringRef CPU, ArchKind AK)
Definition: AArch64TargetParser.cpp:38
llvm::AArch64::getDefaultCPU
StringRef getDefaultCPU(StringRef Arch)
Definition: AArch64TargetParser.cpp:199
llvm::AArch64::getArchAttr
unsigned getArchAttr(ArchKind AK)
Definition: AArch64TargetParser.cpp:173
llvm::AArch64::AEK_DOTPROD
@ AEK_DOTPROD
Definition: AArch64TargetParser.h:41
llvm::AArch64::getArchExtFeature
StringRef getArchExtFeature(StringRef ArchExt)
Definition: AArch64TargetParser.cpp:184
llvm::AArch64::AEK_MOPS
@ AEK_MOPS
Definition: AArch64TargetParser.h:72
llvm::StringRef::substr
LLVM_NODISCARD StringRef substr(size_t Start, size_t N=npos) const
Return a reference to the substring from [Start, Start + N).
Definition: StringRef.h:611
llvm::AArch64::AArch64CPUNames
const ARM::CpuNames< ArchKind > AArch64CPUNames[]
Definition: AArch64TargetParser.h:103
llvm::AArch64::AEK_INVALID
@ AEK_INVALID
Definition: AArch64TargetParser.h:30
llvm::AArch64::AEK_SVE2AES
@ AEK_SVE2AES
Definition: AArch64TargetParser.h:55
C
(vector float) vec_cmpeq(*A, *B) C
Definition: README_ALTIVEC.txt:86
llvm::AArch64::AEK_SMEI64
@ AEK_SMEI64
Definition: AArch64TargetParser.h:70
llvm::AArch64::AEK_SVE2SHA3
@ AEK_SVE2SHA3
Definition: AArch64TargetParser.h:57
llvm::AArch64::AEK_LSE
@ AEK_LSE
Definition: AArch64TargetParser.h:39
llvm::AArch64::AEK_SME
@ AEK_SME
Definition: AArch64TargetParser.h:68
llvm::AArch64::isX18ReservedByDefault
bool isX18ReservedByDefault(const Triple &TT)
Definition: AArch64TargetParser.cpp:220
llvm::AArch64::AEK_SVE
@ AEK_SVE
Definition: AArch64TargetParser.h:40
llvm::AArch64::getDefaultFPU
unsigned getDefaultFPU(StringRef CPU, ArchKind AK)
Definition: AArch64TargetParser.cpp:27
checkArchVersion
static unsigned checkArchVersion(llvm::StringRef Arch)
Definition: AArch64TargetParser.cpp:21
parseArch
static Triple::ArchType parseArch(StringRef ArchName)
Definition: Triple.cpp:411
uint64_t
llvm::AArch64::AEK_CRC
@ AEK_CRC
Definition: AArch64TargetParser.h:32
llvm::AArch64::getArchName
StringRef getArchName(ArchKind AK)
Definition: AArch64TargetParser.cpp:161
llvm::AArch64::AEK_RDM
@ AEK_RDM
Definition: AArch64TargetParser.h:43
llvm::AArch64::AArch64ARCHNames
const ARM::ArchNames< ArchKind > AArch64ARCHNames[]
Definition: AArch64TargetParser.h:81
llvm::AArch64::fillValidCPUArchList
void fillValidCPUArchList(SmallVectorImpl< StringRef > &Values)
Definition: AArch64TargetParser.cpp:213
llvm::AArch64::parseCPUArch
ArchKind parseCPUArch(StringRef CPU)
Definition: AArch64TargetParser.cpp:247
llvm::AArch64::AEK_BRBE
@ AEK_BRBE
Definition: AArch64TargetParser.h:65
Triple.h
llvm::AArch64::AEK_RAS
@ AEK_RAS
Definition: AArch64TargetParser.h:38
llvm::AArch64::parseArch
ArchKind parseArch(StringRef Arch)
Definition: AArch64TargetParser.cpp:226
llvm::StringRef
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:58
llvm::AArch64::AArch64ARCHExtNames
const ARM::ExtName AArch64ARCHExtNames[]
Definition: AArch64TargetParser.h:97
llvm::AArch64::AEK_PAUTH
@ AEK_PAUTH
Definition: AArch64TargetParser.h:66
llvm::AArch64::AEK_PROFILE
@ AEK_PROFILE
Definition: AArch64TargetParser.h:37
llvm::StringRef::size
constexpr LLVM_NODISCARD size_t size() const
size - Get the string size.
Definition: StringRef.h:157
llvm::RISCV::FK_INVALID
@ FK_INVALID
Definition: TargetParser.h:159
llvm::AArch64::AEK_SVE2BITPERM
@ AEK_SVE2BITPERM
Definition: AArch64TargetParser.h:58
llvm::AArch64::getSubArch
StringRef getSubArch(ArchKind AK)
Definition: AArch64TargetParser.cpp:169
StringSwitch.h
llvm::AArch64::AEK_FLAGM
@ AEK_FLAGM
Definition: AArch64TargetParser.h:67
llvm::AArch64::getCPUArchKind
ArchKind getCPUArchKind(StringRef CPU)
Definition: AArch64TargetParser.cpp:51
llvm::AArch64::AEK_FP
@ AEK_FP
Definition: AArch64TargetParser.h:34
llvm::AArch64::ArchKind
ArchKind
Definition: AArch64TargetParser.h:76
llvm::SmallVectorImpl< StringRef >
llvm::StringSwitch
A switch()-like statement whose cases are string literals.
Definition: StringSwitch.h:43
llvm::AArch64::AEK_FP16FML
@ AEK_FP16FML
Definition: AArch64TargetParser.h:48
llvm::AArch64::AEK_HBC
@ AEK_HBC
Definition: AArch64TargetParser.h:71