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/TargetParser.h"
19 
20 namespace clang {
21 namespace targets {
22 
23 class LLVM_LIBRARY_VISIBILITY AArch64TargetInfo : public TargetInfo {
24   virtual void setDataLayout() = 0;
25   static const TargetInfo::GCCRegAlias GCCRegAliases[];
26   static const char *const GCCRegNames[];
27 
28   enum FPUModeEnum { FPUMode, NeonMode = (1 << 0), SveMode = (1 << 1) };
29 
30   unsigned FPU;
31   bool HasCRC;
32   bool HasCrypto;
33   bool HasUnaligned;
34   bool HasFullFP16;
35   bool HasDotProd;
36   bool HasFP16FML;
37   bool HasMTE;
38   bool HasTME;
39 
40   llvm::AArch64::ArchKind ArchKind;
41 
42   static const Builtin::Info BuiltinInfo[];
43 
44   std::string ABI;
45 
46 public:
47   AArch64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
48 
49   StringRef getABI() const override;
50   bool setABI(const std::string &Name) override;
51 
52   bool validateBranchProtection(StringRef, BranchProtectionInfo &,
53                                 StringRef &) const override;
54 
55   bool isValidCPUName(StringRef Name) const override;
56   void fillValidCPUList(SmallVectorImpl<StringRef> &Values) const override;
57   bool setCPU(const std::string &Name) override;
58 
59   bool useFP16ConversionIntrinsics() const override {
60     return false;
61   }
62 
63   void getTargetDefinesARMV81A(const LangOptions &Opts,
64                                MacroBuilder &Builder) const;
65   void getTargetDefinesARMV82A(const LangOptions &Opts,
66                                MacroBuilder &Builder) const;
67   void getTargetDefinesARMV83A(const LangOptions &Opts,
68                                MacroBuilder &Builder) const;
69   void getTargetDefinesARMV84A(const LangOptions &Opts,
70                                MacroBuilder &Builder) const;
71   void getTargetDefinesARMV85A(const LangOptions &Opts,
72                                MacroBuilder &Builder) const;
73   void getTargetDefines(const LangOptions &Opts,
74                         MacroBuilder &Builder) const override;
75 
76   ArrayRef<Builtin::Info> getTargetBuiltins() const override;
77 
78   bool hasFeature(StringRef Feature) const override;
79   bool handleTargetFeatures(std::vector<std::string> &Features,
80                             DiagnosticsEngine &Diags) override;
81 
82   CallingConvCheckResult checkCallingConvention(CallingConv CC) const override;
83 
84   bool isCLZForZeroUndef() const override;
85 
86   BuiltinVaListKind getBuiltinVaListKind() const override;
87 
88   ArrayRef<const char *> getGCCRegNames() const override;
89   ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override;
90   bool validateAsmConstraint(const char *&Name,
91                              TargetInfo::ConstraintInfo &Info) const override;
92   bool
93   validateConstraintModifier(StringRef Constraint, char Modifier, unsigned Size,
94                              std::string &SuggestedModifier) const override;
95   const char *getClobbers() const override;
96 
97   StringRef getConstraintRegister(StringRef Constraint,
98                                   StringRef Expression) const override {
99     return Expression;
100   }
101 
102   int getEHDataRegisterNumber(unsigned RegNo) const override;
103 
104   bool hasInt128Type() const override;
105 };
106 
107 class LLVM_LIBRARY_VISIBILITY AArch64leTargetInfo : public AArch64TargetInfo {
108 public:
109   AArch64leTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
110 
111   void getTargetDefines(const LangOptions &Opts,
112                             MacroBuilder &Builder) const override;
113 private:
114   void setDataLayout() override;
115 };
116 
117 class LLVM_LIBRARY_VISIBILITY WindowsARM64TargetInfo
118     : public WindowsTargetInfo<AArch64leTargetInfo> {
119   const llvm::Triple Triple;
120 
121 public:
122   WindowsARM64TargetInfo(const llvm::Triple &Triple,
123                          const TargetOptions &Opts);
124 
125   void setDataLayout() override;
126 
127   BuiltinVaListKind getBuiltinVaListKind() const override;
128 
129   CallingConvCheckResult checkCallingConvention(CallingConv CC) const override;
130 };
131 
132 // Windows ARM, MS (C++) ABI
133 class LLVM_LIBRARY_VISIBILITY MicrosoftARM64TargetInfo
134     : public WindowsARM64TargetInfo {
135 public:
136   MicrosoftARM64TargetInfo(const llvm::Triple &Triple,
137                            const TargetOptions &Opts);
138 
139   void getTargetDefines(const LangOptions &Opts,
140                         MacroBuilder &Builder) const override;
141   TargetInfo::CallingConvKind
142   getCallingConvKind(bool ClangABICompat4) const override;
143 
144   unsigned getMinGlobalAlign(uint64_t TypeSize) const override;
145 };
146 
147 // ARM64 MinGW target
148 class LLVM_LIBRARY_VISIBILITY MinGWARM64TargetInfo
149     : public WindowsARM64TargetInfo {
150 public:
151   MinGWARM64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
152 };
153 
154 class LLVM_LIBRARY_VISIBILITY AArch64beTargetInfo : public AArch64TargetInfo {
155 public:
156   AArch64beTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
157   void getTargetDefines(const LangOptions &Opts,
158                         MacroBuilder &Builder) const override;
159 
160 private:
161   void setDataLayout() override;
162 };
163 
164 class LLVM_LIBRARY_VISIBILITY DarwinAArch64TargetInfo
165     : public DarwinTargetInfo<AArch64leTargetInfo> {
166 public:
167   DarwinAArch64TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
168 
169   BuiltinVaListKind getBuiltinVaListKind() const override;
170 
171  protected:
172   void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple,
173                     MacroBuilder &Builder) const override;
174 };
175 
176 // 64-bit RenderScript is aarch64
177 class LLVM_LIBRARY_VISIBILITY RenderScript64TargetInfo
178     : public AArch64leTargetInfo {
179 public:
180   RenderScript64TargetInfo(const llvm::Triple &Triple,
181                            const TargetOptions &Opts);
182 
183   void getTargetDefines(const LangOptions &Opts,
184                         MacroBuilder &Builder) const override;
185 };
186 
187 } // namespace targets
188 } // namespace clang
189 
190 #endif // LLVM_CLANG_LIB_BASIC_TARGETS_AARCH64_H
191