clang  19.0.0git
AArch64.h
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1 //===--- AArch64.h - Declare AArch64 target feature support -----*- 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 declares AArch64 TargetInfo objects.
10 //
11 //===----------------------------------------------------------------------===//
12 
13 #ifndef LLVM_CLANG_LIB_BASIC_TARGETS_AARCH64_H
14 #define LLVM_CLANG_LIB_BASIC_TARGETS_AARCH64_H
15 
16 #include "OSTargets.h"
17 #include "clang/Basic/TargetBuiltins.h"
18 #include "llvm/TargetParser/AArch64TargetParser.h"
19 #include <optional>
20 
21 namespace clang {
22 namespace targets {
23 
24 class LLVM_LIBRARY_VISIBILITY AArch64TargetInfo : public TargetInfo {
25  virtual void setDataLayout() = 0;
26  static const TargetInfo::GCCRegAlias GCCRegAliases[];
27  static const char *const GCCRegNames[];
28 
29  enum FPUModeEnum {
30  FPUMode = (1 << 0),
31  NeonMode = (1 << 1),
32  SveMode = (1 << 2),
33  };
34 
35  unsigned FPU = FPUMode;
36  bool HasCRC = false;
37  bool HasAES = false;
38  bool HasSHA2 = false;
39  bool HasSHA3 = false;
40  bool HasSM4 = false;
41  bool HasFullFP16 = false;
42  bool HasDotProd = false;
43  bool HasFP16FML = false;
44  bool HasMTE = false;
45  bool HasTME = false;
46  bool HasPAuth = false;
47  bool HasLS64 = false;
48  bool HasRandGen = false;
49  bool HasMatMul = false;
50  bool HasBFloat16 = false;
51  bool HasSVE2 = false;
52  bool HasSVE2AES = false;
53  bool HasSVE2SHA3 = false;
54  bool HasSVE2SM4 = false;
55  bool HasSVE2BitPerm = false;
56  bool HasMatmulFP64 = false;
57  bool HasMatmulFP32 = false;
58  bool HasLSE = false;
59  bool HasFlagM = false;
60  bool HasAlternativeNZCV = false;
61  bool HasMOPS = false;
62  bool HasD128 = false;
63  bool HasRCPC = false;
64  bool HasRDM = false;
65  bool HasDIT = false;
66  bool HasCCPP = false;
67  bool HasCCDP = false;
68  bool HasFRInt3264 = false;
69  bool HasSME = false;
70  bool HasSME2 = false;
71  bool HasSMEF64F64 = false;
72  bool HasSMEI16I64 = false;
73  bool HasSB = false;
74  bool HasPredRes = false;
75  bool HasSSBS = false;
76  bool HasBTI = false;
77  bool HasWFxT = false;
78  bool HasJSCVT = false;
79  bool HasFCMA = false;
80  bool HasNoFP = false;
81  bool HasNoNeon = false;
82  bool HasNoSVE = false;
83  bool HasFMV = true;
84  bool HasGCS = false;
85  bool HasRCPC3 = false;
86  bool HasSMEFA64 = false;
87  bool HasPAuthLR = false;
88 
89  const llvm::AArch64::ArchInfo *ArchInfo = &llvm::AArch64::ARMV8A;
90 
91  std::string ABI;
92 
93 public:
94  AArch64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
95 
96  StringRef getABI() const override;
97  bool setABI(const std::string &Name) override;
98 
99  bool validateBranchProtection(StringRef Spec, StringRef Arch,
100  BranchProtectionInfo &BPI,
101  StringRef &Err) const override;
102 
103  bool isValidCPUName(StringRef Name) const override;
104  void fillValidCPUList(SmallVectorImpl<StringRef> &Values) const override;
105  bool setCPU(const std::string &Name) override;
106 
107  unsigned multiVersionSortPriority(StringRef Name) const override;
108  unsigned multiVersionFeatureCost() const override;
109 
110  bool
111  initFeatureMap(llvm::StringMap<bool> &Features, DiagnosticsEngine &Diags,
112  StringRef CPU,
113  const std::vector<std::string> &FeaturesVec) const override;
114  bool useFP16ConversionIntrinsics() const override {
115  return false;
116  }
117 
118  void setArchFeatures();
119 
120  void getTargetDefinesARMV81A(const LangOptions &Opts,
121  MacroBuilder &Builder) const;
122  void getTargetDefinesARMV82A(const LangOptions &Opts,
123  MacroBuilder &Builder) const;
124  void getTargetDefinesARMV83A(const LangOptions &Opts,
125  MacroBuilder &Builder) const;
126  void getTargetDefinesARMV84A(const LangOptions &Opts,
127  MacroBuilder &Builder) const;
128  void getTargetDefinesARMV85A(const LangOptions &Opts,
129  MacroBuilder &Builder) const;
130  void getTargetDefinesARMV86A(const LangOptions &Opts,
131  MacroBuilder &Builder) const;
132  void getTargetDefinesARMV87A(const LangOptions &Opts,
133  MacroBuilder &Builder) const;
134  void getTargetDefinesARMV88A(const LangOptions &Opts,
135  MacroBuilder &Builder) const;
136  void getTargetDefinesARMV89A(const LangOptions &Opts,
137  MacroBuilder &Builder) const;
138  void getTargetDefinesARMV9A(const LangOptions &Opts,
139  MacroBuilder &Builder) const;
140  void getTargetDefinesARMV91A(const LangOptions &Opts,
141  MacroBuilder &Builder) const;
142  void getTargetDefinesARMV92A(const LangOptions &Opts,
143  MacroBuilder &Builder) const;
144  void getTargetDefinesARMV93A(const LangOptions &Opts,
145  MacroBuilder &Builder) const;
146  void getTargetDefinesARMV94A(const LangOptions &Opts,
147  MacroBuilder &Builder) const;
148  void getTargetDefinesARMV95A(const LangOptions &Opts,
149  MacroBuilder &Builder) const;
150  void getTargetDefines(const LangOptions &Opts,
151  MacroBuilder &Builder) const override;
152 
153  ArrayRef<Builtin::Info> getTargetBuiltins() const override;
154 
155  std::optional<std::pair<unsigned, unsigned>>
156  getVScaleRange(const LangOptions &LangOpts) const override;
157  bool doesFeatureAffectCodeGen(StringRef Name) const override;
158  StringRef getFeatureDependencies(StringRef Name) const override;
159  bool validateCpuSupports(StringRef FeatureStr) const override;
160  bool hasFeature(StringRef Feature) const override;
161  void setFeatureEnabled(llvm::StringMap<bool> &Features, StringRef Name,
162  bool Enabled) const override;
163  bool handleTargetFeatures(std::vector<std::string> &Features,
164  DiagnosticsEngine &Diags) override;
165  ParsedTargetAttr parseTargetAttr(StringRef Str) const override;
166  bool supportsTargetAttributeTune() const override { return true; }
167  bool supportsCpuSupports() const override { return true; }
168  bool checkArithmeticFenceSupported() const override { return true; }
169 
170  bool hasBFloat16Type() const override;
171 
172  CallingConvCheckResult checkCallingConvention(CallingConv CC) const override;
173 
174  bool isCLZForZeroUndef() const override;
175 
176  BuiltinVaListKind getBuiltinVaListKind() const override;
177 
178  ArrayRef<const char *> getGCCRegNames() const override;
179  ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override;
180 
181  std::string convertConstraint(const char *&Constraint) const override;
182 
183  bool validateAsmConstraint(const char *&Name,
184  TargetInfo::ConstraintInfo &Info) const override;
185  bool
186  validateConstraintModifier(StringRef Constraint, char Modifier, unsigned Size,
187  std::string &SuggestedModifier) const override;
188  std::string_view getClobbers() const override;
189 
190  StringRef getConstraintRegister(StringRef Constraint,
191  StringRef Expression) const override {
192  return Expression;
193  }
194 
195  int getEHDataRegisterNumber(unsigned RegNo) const override;
196 
197  bool validatePointerAuthKey(const llvm::APSInt &value) const override;
198 
199  const char *getBFloat16Mangling() const override { return "u6__bf16"; };
200  bool hasInt128Type() const override;
201 
202  bool hasBitIntType() const override { return true; }
203 
204  bool validateTarget(DiagnosticsEngine &Diags) const override;
205 };
206 
207 class LLVM_LIBRARY_VISIBILITY AArch64leTargetInfo : public AArch64TargetInfo {
208 public:
209  AArch64leTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
210 
211  void getTargetDefines(const LangOptions &Opts,
212  MacroBuilder &Builder) const override;
213 private:
214  void setDataLayout() override;
215 };
216 
217 class LLVM_LIBRARY_VISIBILITY WindowsARM64TargetInfo
218  : public WindowsTargetInfo<AArch64leTargetInfo> {
219  const llvm::Triple Triple;
220 
221 public:
222  WindowsARM64TargetInfo(const llvm::Triple &Triple,
223  const TargetOptions &Opts);
224 
225  void setDataLayout() override;
226 
227  BuiltinVaListKind getBuiltinVaListKind() const override;
228 
229  CallingConvCheckResult checkCallingConvention(CallingConv CC) const override;
230 };
231 
232 // Windows ARM, MS (C++) ABI
233 class LLVM_LIBRARY_VISIBILITY MicrosoftARM64TargetInfo
234  : public WindowsARM64TargetInfo {
235 public:
236  MicrosoftARM64TargetInfo(const llvm::Triple &Triple,
237  const TargetOptions &Opts);
238 
239  void getTargetDefines(const LangOptions &Opts,
240  MacroBuilder &Builder) const override;
241  TargetInfo::CallingConvKind
242  getCallingConvKind(bool ClangABICompat4) const override;
243 
244  unsigned getMinGlobalAlign(uint64_t TypeSize,
245  bool HasNonWeakDef) const override;
246 };
247 
248 // ARM64 MinGW target
249 class LLVM_LIBRARY_VISIBILITY MinGWARM64TargetInfo
250  : public WindowsARM64TargetInfo {
251 public:
252  MinGWARM64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
253 };
254 
255 class LLVM_LIBRARY_VISIBILITY AArch64beTargetInfo : public AArch64TargetInfo {
256 public:
257  AArch64beTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
258  void getTargetDefines(const LangOptions &Opts,
259  MacroBuilder &Builder) const override;
260 
261 private:
262  void setDataLayout() override;
263 };
264 
265 class LLVM_LIBRARY_VISIBILITY DarwinAArch64TargetInfo
266  : public DarwinTargetInfo<AArch64leTargetInfo> {
267 public:
268  DarwinAArch64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
269 
270  BuiltinVaListKind getBuiltinVaListKind() const override;
271 
272  protected:
273  void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple,
274  MacroBuilder &Builder) const override;
275 };
276 
277 // 64-bit RenderScript is aarch64
278 class LLVM_LIBRARY_VISIBILITY RenderScript64TargetInfo
279  : public AArch64leTargetInfo {
280 public:
281  RenderScript64TargetInfo(const llvm::Triple &Triple,
282  const TargetOptions &Opts);
283 
284  void getTargetDefines(const LangOptions &Opts,
285  MacroBuilder &Builder) const override;
286 };
287 
288 } // namespace targets
289 } // namespace clang
290 
291 #endif // LLVM_CLANG_LIB_BASIC_TARGETS_AARCH64_H
APSInt
llvm::APSInt APSInt
Definition: ByteCodeExprGen.cpp:23
hasFeature
static bool hasFeature(StringRef Feature, const LangOptions &LangOpts, const TargetInfo &Target)
Determine whether a translation unit built using the current language options has the given feature.
Definition: Module.cpp:100
TargetBuiltins.h
Enumerates target-specific builtins in their own namespaces within namespace clang.
clang::DiagnosticsEngine
Concrete class used by the front-end to report problems and issues.
Definition: Diagnostic.h:193
clang::LangOptions
Keeps track of the various options that can be enabled, which controls the dialect of C or C++ that i...
Definition: LangOptions.h:482
clang::TargetInfo
Exposes information about the current target.
Definition: TargetInfo.h:218
clang::TargetOptions
Options for controlling the target.
Definition: TargetOptions.h:26
clang::targets::AArch64TargetInfo::getConstraintRegister
StringRef getConstraintRegister(StringRef Constraint, StringRef Expression) const override
Extracts a register from the passed constraint (if it is a single-register constraint) and the asm la...
Definition: AArch64.h:190
clang::targets::AArch64TargetInfo::useFP16ConversionIntrinsics
bool useFP16ConversionIntrinsics() const override
Check whether llvm intrinsics such as llvm.convert.to.fp16 should be used to convert to and from __fp...
Definition: AArch64.h:114
clang::targets::AArch64TargetInfo::supportsTargetAttributeTune
bool supportsTargetAttributeTune() const override
Determine whether this TargetInfo supports tune in target attribute.
Definition: AArch64.h:166
clang::targets::AArch64TargetInfo::checkArithmeticFenceSupported
bool checkArithmeticFenceSupported() const override
Controls if __arithmetic_fence is supported in the targeted backend.
Definition: AArch64.h:168
clang::targets::AArch64TargetInfo::hasBitIntType
bool hasBitIntType() const override
Determine whether the _BitInt type is supported on this target.
Definition: AArch64.h:202
clang::targets::AArch64TargetInfo::supportsCpuSupports
bool supportsCpuSupports() const override
Definition: AArch64.h:167
clang::targets::AArch64TargetInfo::getBFloat16Mangling
const char * getBFloat16Mangling() const override
Return the mangled code of bfloat.
Definition: AArch64.h:199
clang::targets::GCCRegNames
static const char *const GCCRegNames[]
Definition: X86.cpp:44
clang
The JSON file list parser is used to communicate input to InstallAPI.
Definition: CalledOnceCheck.h:17
clang::CallingConv
CallingConv
CallingConv - Specifies the calling convention that a function uses.
Definition: Specifiers.h:275
hlsl::uint64_t
unsigned long uint64_t
Definition: hlsl_basic_types.h:32
clang::ParsedTargetAttr
Contains information gathered from parsing the contents of TargetAttr.
Definition: TargetInfo.h:57
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