clang 17.0.0git
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
21namespace clang {
22namespace targets {
23
24class 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 HasUnaligned = true;
42 bool HasFullFP16 = false;
43 bool HasDotProd = false;
44 bool HasFP16FML = false;
45 bool HasMTE = false;
46 bool HasTME = false;
47 bool HasPAuth = false;
48 bool HasLS64 = false;
49 bool HasRandGen = false;
50 bool HasMatMul = false;
51 bool HasBFloat16 = false;
52 bool HasSVE2 = false;
53 bool HasSVE2AES = false;
54 bool HasSVE2SHA3 = false;
55 bool HasSVE2SM4 = false;
56 bool HasSVE2BitPerm = false;
57 bool HasMatmulFP64 = false;
58 bool HasMatmulFP32 = false;
59 bool HasLSE = false;
60 bool HasFlagM = false;
61 bool HasAlternativeNZCV = false;
62 bool HasMOPS = false;
63 bool HasD128 = false;
64 bool HasRCPC = false;
65 bool HasRDM = false;
66 bool HasDIT = false;
67 bool HasCCPP = false;
68 bool HasCCDP = false;
69 bool HasFRInt3264 = false;
70 bool HasSME = 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
86 const llvm::AArch64::ArchInfo *ArchInfo = &llvm::AArch64::ARMV8A;
87
88 std::string ABI;
89
90public:
91 AArch64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
92
93 StringRef getABI() const override;
94 bool setABI(const std::string &Name) override;
95
96 bool validateBranchProtection(StringRef Spec, StringRef Arch,
97 BranchProtectionInfo &BPI,
98 StringRef &Err) const override;
99
100 bool isValidCPUName(StringRef Name) const override;
101 void fillValidCPUList(SmallVectorImpl<StringRef> &Values) const override;
102 bool setCPU(const std::string &Name) override;
103
104 unsigned multiVersionSortPriority(StringRef Name) const override;
105 unsigned multiVersionFeatureCost() const override;
106
107 bool
108 initFeatureMap(llvm::StringMap<bool> &Features, DiagnosticsEngine &Diags,
109 StringRef CPU,
110 const std::vector<std::string> &FeaturesVec) const override;
111 bool useFP16ConversionIntrinsics() const override {
112 return false;
113 }
114
115 void setArchFeatures();
116
117 void getTargetDefinesARMV81A(const LangOptions &Opts,
118 MacroBuilder &Builder) const;
119 void getTargetDefinesARMV82A(const LangOptions &Opts,
120 MacroBuilder &Builder) const;
121 void getTargetDefinesARMV83A(const LangOptions &Opts,
122 MacroBuilder &Builder) const;
123 void getTargetDefinesARMV84A(const LangOptions &Opts,
124 MacroBuilder &Builder) const;
125 void getTargetDefinesARMV85A(const LangOptions &Opts,
126 MacroBuilder &Builder) const;
127 void getTargetDefinesARMV86A(const LangOptions &Opts,
128 MacroBuilder &Builder) const;
129 void getTargetDefinesARMV87A(const LangOptions &Opts,
130 MacroBuilder &Builder) const;
131 void getTargetDefinesARMV88A(const LangOptions &Opts,
132 MacroBuilder &Builder) const;
133 void getTargetDefinesARMV89A(const LangOptions &Opts,
134 MacroBuilder &Builder) const;
135 void getTargetDefinesARMV9A(const LangOptions &Opts,
136 MacroBuilder &Builder) const;
137 void getTargetDefinesARMV91A(const LangOptions &Opts,
138 MacroBuilder &Builder) const;
139 void getTargetDefinesARMV92A(const LangOptions &Opts,
140 MacroBuilder &Builder) const;
141 void getTargetDefinesARMV93A(const LangOptions &Opts,
142 MacroBuilder &Builder) const;
143 void getTargetDefinesARMV94A(const LangOptions &Opts,
144 MacroBuilder &Builder) const;
145 void getTargetDefines(const LangOptions &Opts,
146 MacroBuilder &Builder) const override;
147
148 ArrayRef<Builtin::Info> getTargetBuiltins() const override;
149
150 std::optional<std::pair<unsigned, unsigned>>
151 getVScaleRange(const LangOptions &LangOpts) const override;
152 bool doesFeatureAffectCodeGen(StringRef Name) const override;
153 StringRef getFeatureDependencies(StringRef Name) const override;
154 bool validateCpuSupports(StringRef FeatureStr) const override;
155 bool hasFeature(StringRef Feature) const override;
156 void setFeatureEnabled(llvm::StringMap<bool> &Features, StringRef Name,
157 bool Enabled) const override;
158 bool handleTargetFeatures(std::vector<std::string> &Features,
159 DiagnosticsEngine &Diags) override;
160 ParsedTargetAttr parseTargetAttr(StringRef Str) const override;
161 bool supportsTargetAttributeTune() const override { return true; }
162
163 bool checkArithmeticFenceSupported() const override { return true; }
164
165 bool hasBFloat16Type() const override;
166
167 CallingConvCheckResult checkCallingConvention(CallingConv CC) const override;
168
169 bool isCLZForZeroUndef() const override;
170
171 BuiltinVaListKind getBuiltinVaListKind() const override;
172
173 ArrayRef<const char *> getGCCRegNames() const override;
174 ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override;
175
176 std::string convertConstraint(const char *&Constraint) const override;
177
178 bool validateAsmConstraint(const char *&Name,
179 TargetInfo::ConstraintInfo &Info) const override;
180 bool
181 validateConstraintModifier(StringRef Constraint, char Modifier, unsigned Size,
182 std::string &SuggestedModifier) const override;
183 std::string_view getClobbers() const override;
184
185 StringRef getConstraintRegister(StringRef Constraint,
186 StringRef Expression) const override {
187 return Expression;
188 }
189
190 int getEHDataRegisterNumber(unsigned RegNo) const override;
191
192 const char *getBFloat16Mangling() const override { return "u6__bf16"; };
193 bool hasInt128Type() const override;
194
195 bool hasBitIntType() const override { return true; }
196};
197
198class LLVM_LIBRARY_VISIBILITY AArch64leTargetInfo : public AArch64TargetInfo {
199public:
200 AArch64leTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
201
202 void getTargetDefines(const LangOptions &Opts,
203 MacroBuilder &Builder) const override;
204private:
205 void setDataLayout() override;
206};
207
208class LLVM_LIBRARY_VISIBILITY WindowsARM64TargetInfo
209 : public WindowsTargetInfo<AArch64leTargetInfo> {
210 const llvm::Triple Triple;
211
212public:
213 WindowsARM64TargetInfo(const llvm::Triple &Triple,
214 const TargetOptions &Opts);
215
216 void setDataLayout() override;
217
218 BuiltinVaListKind getBuiltinVaListKind() const override;
219
220 CallingConvCheckResult checkCallingConvention(CallingConv CC) const override;
221};
222
223// Windows ARM, MS (C++) ABI
224class LLVM_LIBRARY_VISIBILITY MicrosoftARM64TargetInfo
225 : public WindowsARM64TargetInfo {
226public:
227 MicrosoftARM64TargetInfo(const llvm::Triple &Triple,
228 const TargetOptions &Opts);
229
230 void getTargetDefines(const LangOptions &Opts,
231 MacroBuilder &Builder) const override;
232 TargetInfo::CallingConvKind
233 getCallingConvKind(bool ClangABICompat4) const override;
234
235 unsigned getMinGlobalAlign(uint64_t TypeSize) const override;
236};
237
238// ARM64 MinGW target
239class LLVM_LIBRARY_VISIBILITY MinGWARM64TargetInfo
240 : public WindowsARM64TargetInfo {
241public:
242 MinGWARM64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
243};
244
245class LLVM_LIBRARY_VISIBILITY AArch64beTargetInfo : public AArch64TargetInfo {
246public:
247 AArch64beTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
248 void getTargetDefines(const LangOptions &Opts,
249 MacroBuilder &Builder) const override;
250
251private:
252 void setDataLayout() override;
253};
254
255class LLVM_LIBRARY_VISIBILITY DarwinAArch64TargetInfo
256 : public DarwinTargetInfo<AArch64leTargetInfo> {
257public:
258 DarwinAArch64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
259
260 BuiltinVaListKind getBuiltinVaListKind() const override;
261
262 protected:
263 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple,
264 MacroBuilder &Builder) const override;
265};
266
267// 64-bit RenderScript is aarch64
268class LLVM_LIBRARY_VISIBILITY RenderScript64TargetInfo
269 : public AArch64leTargetInfo {
270public:
271 RenderScript64TargetInfo(const llvm::Triple &Triple,
272 const TargetOptions &Opts);
273
274 void getTargetDefines(const LangOptions &Opts,
275 MacroBuilder &Builder) const override;
276};
277
278} // namespace targets
279} // namespace clang
280
281#endif // LLVM_CLANG_LIB_BASIC_TARGETS_AARCH64_H
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:192
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:82
clang::TargetInfo
Exposes information about the current target.
Definition: TargetInfo.h:206
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:185
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:111
clang::targets::AArch64TargetInfo::supportsTargetAttributeTune
bool supportsTargetAttributeTune() const override
brief Determine whether this TargetInfo supports tune in target attribute.
Definition: AArch64.h:161
clang::targets::AArch64TargetInfo::getBFloat16Mangling
const char * getBFloat16Mangling() const override
Return the mangled code of bfloat.
Definition: AArch64.h:192
clang::targets::AArch64TargetInfo::checkArithmeticFenceSupported
bool checkArithmeticFenceSupported() const override
Controls if __arithmetic_fence is supported in the targeted backend.
Definition: AArch64.h:163
clang::targets::AArch64TargetInfo::hasBitIntType
bool hasBitIntType() const override
Determine whether the _BitInt type is supported on this target.
Definition: AArch64.h:195
clang::CallingConv
CallingConv
CallingConv - Specifies the calling convention that a function uses.
Definition: Specifiers.h:269
clang::ParsedTargetAttr
Contains information gathered from parsing the contents of TargetAttr.
Definition: TargetInfo.h:54
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