1 //===--- ARM.h - Declare ARM target feature support -------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file declares ARM TargetInfo objects.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_CLANG_LIB_BASIC_TARGETS_ARM_H
15 #define LLVM_CLANG_LIB_BASIC_TARGETS_ARM_H
17 #include "OSTargets.h"
18 #include "clang/Basic/TargetInfo.h"
19 #include "clang/Basic/TargetOptions.h"
20 #include "llvm/ADT/Triple.h"
21 #include "llvm/Support/Compiler.h"
22 #include "llvm/Support/TargetParser.h"
27 class LLVM_LIBRARY_VISIBILITY ARMTargetInfo : public TargetInfo {
28 // Possible FPU choices.
37 // Possible HWDiv features.
38 enum HWDivMode { HWDivThumb = (1 << 0), HWDivARM = (1 << 1) };
40 static bool FPUModeIsVFP(FPUMode Mode) {
41 return Mode & (VFP2FPU | VFP3FPU | VFP4FPU | NeonFPU | FPARMV8);
44 static const TargetInfo::GCCRegAlias GCCRegAliases[];
45 static const char *const GCCRegNames[];
52 enum { FP_Default, FP_VFP, FP_Neon } FPMath;
54 llvm::ARM::ISAKind ArchISA;
55 llvm::ARM::ArchKind ArchKind = llvm::ARM::ArchKind::ARMV4T;
56 llvm::ARM::ProfileKind ArchProfile;
64 // Initialized via features.
65 unsigned SoftFloat : 1;
66 unsigned SoftFloatABI : 1;
71 unsigned Unaligned : 1;
74 LDREX_B = (1 << 0), /// byte (8-bit)
75 LDREX_H = (1 << 1), /// half (16-bit)
76 LDREX_W = (1 << 2), /// word (32-bit)
77 LDREX_D = (1 << 3), /// double (64-bit)
82 // ACLE 6.5.1 Hardware floating point
84 HW_FP_HP = (1 << 1), /// half (16-bit)
85 HW_FP_SP = (1 << 2), /// single (32-bit)
86 HW_FP_DP = (1 << 3), /// double (64-bit)
90 static const Builtin::Info BuiltinInfo[];
93 void setABIAPCS(bool IsAAPCS16);
96 void setArchInfo(llvm::ARM::ArchKind Kind);
100 bool isThumb() const;
101 bool supportsThumb() const;
102 bool supportsThumb2() const;
104 StringRef getCPUAttr() const;
105 StringRef getCPUProfile() const;
108 ARMTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
110 StringRef getABI() const override;
111 bool setABI(const std::string &Name) override;
113 // FIXME: This should be based on Arch attributes, not CPU names.
115 initFeatureMap(llvm::StringMap<bool> &Features, DiagnosticsEngine &Diags,
117 const std::vector<std::string> &FeaturesVec) const override;
119 bool handleTargetFeatures(std::vector<std::string> &Features,
120 DiagnosticsEngine &Diags) override;
122 bool hasFeature(StringRef Feature) const override;
124 bool isValidCPUName(StringRef Name) const override;
125 bool setCPU(const std::string &Name) override;
127 bool setFPMath(StringRef Name) override;
129 bool useFP16ConversionIntrinsics() const override {
133 void getTargetDefinesARMV81A(const LangOptions &Opts,
134 MacroBuilder &Builder) const;
136 void getTargetDefinesARMV82A(const LangOptions &Opts,
137 MacroBuilder &Builder) const;
138 void getTargetDefines(const LangOptions &Opts,
139 MacroBuilder &Builder) const override;
141 ArrayRef<Builtin::Info> getTargetBuiltins() const override;
143 bool isCLZForZeroUndef() const override;
144 BuiltinVaListKind getBuiltinVaListKind() const override;
146 ArrayRef<const char *> getGCCRegNames() const override;
147 ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override;
148 bool validateAsmConstraint(const char *&Name,
149 TargetInfo::ConstraintInfo &Info) const override;
150 std::string convertConstraint(const char *&Constraint) const override;
152 validateConstraintModifier(StringRef Constraint, char Modifier, unsigned Size,
153 std::string &SuggestedModifier) const override;
154 const char *getClobbers() const override;
156 CallingConvCheckResult checkCallingConvention(CallingConv CC) const override;
158 int getEHDataRegisterNumber(unsigned RegNo) const override;
160 bool hasSjLjLowering() const override;
163 class LLVM_LIBRARY_VISIBILITY ARMleTargetInfo : public ARMTargetInfo {
165 ARMleTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
166 void getTargetDefines(const LangOptions &Opts,
167 MacroBuilder &Builder) const override;
170 class LLVM_LIBRARY_VISIBILITY ARMbeTargetInfo : public ARMTargetInfo {
172 ARMbeTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
173 void getTargetDefines(const LangOptions &Opts,
174 MacroBuilder &Builder) const override;
177 class LLVM_LIBRARY_VISIBILITY WindowsARMTargetInfo
178 : public WindowsTargetInfo<ARMleTargetInfo> {
179 const llvm::Triple Triple;
182 WindowsARMTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
184 void getVisualStudioDefines(const LangOptions &Opts,
185 MacroBuilder &Builder) const;
187 BuiltinVaListKind getBuiltinVaListKind() const override;
189 CallingConvCheckResult checkCallingConvention(CallingConv CC) const override;
192 // Windows ARM + Itanium C++ ABI Target
193 class LLVM_LIBRARY_VISIBILITY ItaniumWindowsARMleTargetInfo
194 : public WindowsARMTargetInfo {
196 ItaniumWindowsARMleTargetInfo(const llvm::Triple &Triple,
197 const TargetOptions &Opts);
199 void getTargetDefines(const LangOptions &Opts,
200 MacroBuilder &Builder) const override;
203 // Windows ARM, MS (C++) ABI
204 class LLVM_LIBRARY_VISIBILITY MicrosoftARMleTargetInfo
205 : public WindowsARMTargetInfo {
207 MicrosoftARMleTargetInfo(const llvm::Triple &Triple,
208 const TargetOptions &Opts);
210 void getTargetDefines(const LangOptions &Opts,
211 MacroBuilder &Builder) const override;
215 class LLVM_LIBRARY_VISIBILITY MinGWARMTargetInfo : public WindowsARMTargetInfo {
217 MinGWARMTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
219 void getTargetDefines(const LangOptions &Opts,
220 MacroBuilder &Builder) const override;
224 class LLVM_LIBRARY_VISIBILITY CygwinARMTargetInfo : public ARMleTargetInfo {
226 CygwinARMTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
228 void getTargetDefines(const LangOptions &Opts,
229 MacroBuilder &Builder) const override;
232 class LLVM_LIBRARY_VISIBILITY DarwinARMTargetInfo
233 : public DarwinTargetInfo<ARMleTargetInfo> {
235 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple,
236 MacroBuilder &Builder) const override;
239 DarwinARMTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
242 // 32-bit RenderScript is armv7 with width and align of 'long' set to 8-bytes
243 class LLVM_LIBRARY_VISIBILITY RenderScript32TargetInfo
244 : public ARMleTargetInfo {
246 RenderScript32TargetInfo(const llvm::Triple &Triple,
247 const TargetOptions &Opts);
249 void getTargetDefines(const LangOptions &Opts,
250 MacroBuilder &Builder) const override;
253 } // namespace targets
256 #endif // LLVM_CLANG_LIB_BASIC_TARGETS_ARM_H