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/Support/AArch64TargetParser.h"
19 #include "llvm/Support/TargetParser.h"
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 { FPUMode, NeonMode = (1 << 0), SveMode = (1 << 1) };
30 
31   unsigned FPU;
32   bool HasCRC;
33   bool HasAES;
34   bool HasSHA2;
35   bool HasSHA3;
36   bool HasSM4;
37   bool HasUnaligned;
38   bool HasFullFP16;
39   bool HasDotProd;
40   bool HasFP16FML;
41   bool HasMTE;
42   bool HasTME;
43   bool HasPAuth;
44   bool HasLS64;
45   bool HasRandGen;
46   bool HasMatMul;
47   bool HasSVE2;
48   bool HasSVE2AES;
49   bool HasSVE2SHA3;
50   bool HasSVE2SM4;
51   bool HasSVE2BitPerm;
52   bool HasMatmulFP64;
53   bool HasMatmulFP32;
54   bool HasLSE;
55   bool HasFlagM;
56   bool HasMOPS;
57 
58   llvm::AArch64::ArchKind ArchKind;
59 
60   static const Builtin::Info BuiltinInfo[];
61 
62   std::string ABI;
63   StringRef getArchProfile() const;
64 
65 public:
66   AArch64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
67 
68   StringRef getABI() const override;
69   bool setABI(const std::string &Name) override;
70 
71   bool validateBranchProtection(StringRef Spec, StringRef Arch,
72                                 BranchProtectionInfo &BPI,
73                                 StringRef &Err) const override;
74 
75   bool isValidCPUName(StringRef Name) const override;
76   void fillValidCPUList(SmallVectorImpl<StringRef> &Values) const override;
77   bool setCPU(const std::string &Name) override;
78 
79   bool useFP16ConversionIntrinsics() const override {
80     return false;
81   }
82 
83   void getTargetDefinesARMV81A(const LangOptions &Opts,
84                                MacroBuilder &Builder) const;
85   void getTargetDefinesARMV82A(const LangOptions &Opts,
86                                MacroBuilder &Builder) const;
87   void getTargetDefinesARMV83A(const LangOptions &Opts,
88                                MacroBuilder &Builder) const;
89   void getTargetDefinesARMV84A(const LangOptions &Opts,
90                                MacroBuilder &Builder) const;
91   void getTargetDefinesARMV85A(const LangOptions &Opts,
92                                MacroBuilder &Builder) const;
93   void getTargetDefinesARMV86A(const LangOptions &Opts,
94                                MacroBuilder &Builder) const;
95   void getTargetDefinesARMV87A(const LangOptions &Opts,
96                                MacroBuilder &Builder) const;
97   void getTargetDefinesARMV88A(const LangOptions &Opts,
98                                MacroBuilder &Builder) const;
99   void getTargetDefinesARMV9A(const LangOptions &Opts,
100                               MacroBuilder &Builder) const;
101   void getTargetDefinesARMV91A(const LangOptions &Opts,
102                                MacroBuilder &Builder) const;
103   void getTargetDefinesARMV92A(const LangOptions &Opts,
104                                MacroBuilder &Builder) const;
105   void getTargetDefinesARMV93A(const LangOptions &Opts,
106                                MacroBuilder &Builder) const;
107   void getTargetDefines(const LangOptions &Opts,
108                         MacroBuilder &Builder) const override;
109 
110   ArrayRef<Builtin::Info> getTargetBuiltins() const override;
111 
112   Optional<std::pair<unsigned, unsigned>>
113   getVScaleRange(const LangOptions &LangOpts) const override;
114 
115   bool hasFeature(StringRef Feature) const override;
116   bool handleTargetFeatures(std::vector<std::string> &Features,
117                             DiagnosticsEngine &Diags) override;
118 
119   CallingConvCheckResult checkCallingConvention(CallingConv CC) const override;
120 
121   bool isCLZForZeroUndef() const override;
122 
123   BuiltinVaListKind getBuiltinVaListKind() const override;
124 
125   ArrayRef<const char *> getGCCRegNames() const override;
126   ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override;
127 
128   std::string convertConstraint(const char *&Constraint) const override {
129     std::string R;
130     switch (*Constraint) {
131     case 'U': // Three-character constraint; add "@3" hint for later parsing.
132       R = std::string("@3") + std::string(Constraint, 3);
133       Constraint += 2;
134       break;
135     default:
136       R = TargetInfo::convertConstraint(Constraint);
137       break;
138     }
139     return R;
140   }
141 
142   bool validateAsmConstraint(const char *&Name,
143                              TargetInfo::ConstraintInfo &Info) const override;
144   bool
145   validateConstraintModifier(StringRef Constraint, char Modifier, unsigned Size,
146                              std::string &SuggestedModifier) const override;
147   const char *getClobbers() const override;
148 
149   StringRef getConstraintRegister(StringRef Constraint,
150                                   StringRef Expression) const override {
151     return Expression;
152   }
153 
154   int getEHDataRegisterNumber(unsigned RegNo) const override;
155 
156   const char *getBFloat16Mangling() const override { return "u6__bf16"; };
157   bool hasInt128Type() const override;
158 
159   bool hasBitIntType() const override { return true; }
160 };
161 
162 class LLVM_LIBRARY_VISIBILITY AArch64leTargetInfo : public AArch64TargetInfo {
163 public:
164   AArch64leTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
165 
166   void getTargetDefines(const LangOptions &Opts,
167                             MacroBuilder &Builder) const override;
168 private:
169   void setDataLayout() override;
170 };
171 
172 class LLVM_LIBRARY_VISIBILITY WindowsARM64TargetInfo
173     : public WindowsTargetInfo<AArch64leTargetInfo> {
174   const llvm::Triple Triple;
175 
176 public:
177   WindowsARM64TargetInfo(const llvm::Triple &Triple,
178                          const TargetOptions &Opts);
179 
180   void setDataLayout() override;
181 
182   BuiltinVaListKind getBuiltinVaListKind() const override;
183 
184   CallingConvCheckResult checkCallingConvention(CallingConv CC) const override;
185 };
186 
187 // Windows ARM, MS (C++) ABI
188 class LLVM_LIBRARY_VISIBILITY MicrosoftARM64TargetInfo
189     : public WindowsARM64TargetInfo {
190 public:
191   MicrosoftARM64TargetInfo(const llvm::Triple &Triple,
192                            const TargetOptions &Opts);
193 
194   void getTargetDefines(const LangOptions &Opts,
195                         MacroBuilder &Builder) const override;
196   TargetInfo::CallingConvKind
197   getCallingConvKind(bool ClangABICompat4) const override;
198 
199   unsigned getMinGlobalAlign(uint64_t TypeSize) const override;
200 };
201 
202 // ARM64 MinGW target
203 class LLVM_LIBRARY_VISIBILITY MinGWARM64TargetInfo
204     : public WindowsARM64TargetInfo {
205 public:
206   MinGWARM64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
207 };
208 
209 class LLVM_LIBRARY_VISIBILITY AArch64beTargetInfo : public AArch64TargetInfo {
210 public:
211   AArch64beTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
212   void getTargetDefines(const LangOptions &Opts,
213                         MacroBuilder &Builder) const override;
214 
215 private:
216   void setDataLayout() override;
217 };
218 
219 class LLVM_LIBRARY_VISIBILITY DarwinAArch64TargetInfo
220     : public DarwinTargetInfo<AArch64leTargetInfo> {
221 public:
222   DarwinAArch64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
223 
224   BuiltinVaListKind getBuiltinVaListKind() const override;
225 
226  protected:
227   void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple,
228                     MacroBuilder &Builder) const override;
229 };
230 
231 // 64-bit RenderScript is aarch64
232 class LLVM_LIBRARY_VISIBILITY RenderScript64TargetInfo
233     : public AArch64leTargetInfo {
234 public:
235   RenderScript64TargetInfo(const llvm::Triple &Triple,
236                            const TargetOptions &Opts);
237 
238   void getTargetDefines(const LangOptions &Opts,
239                         MacroBuilder &Builder) const override;
240 };
241 
242 } // namespace targets
243 } // namespace clang
244 
245 #endif // LLVM_CLANG_LIB_BASIC_TARGETS_AARCH64_H
246