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;
75 LDREX_B = (1 << 0), /// byte (8-bit)
76 LDREX_H = (1 << 1), /// half (16-bit)
77 LDREX_W = (1 << 2), /// word (32-bit)
78 LDREX_D = (1 << 3), /// double (64-bit)
83 // ACLE 6.5.1 Hardware floating point
85 HW_FP_HP = (1 << 1), /// half (16-bit)
86 HW_FP_SP = (1 << 2), /// single (32-bit)
87 HW_FP_DP = (1 << 3), /// double (64-bit)
91 static const Builtin::Info BuiltinInfo[];
94 void setABIAPCS(bool IsAAPCS16);
97 void setArchInfo(llvm::ARM::ArchKind Kind);
101 bool isThumb() const;
102 bool supportsThumb() const;
103 bool supportsThumb2() const;
105 StringRef getCPUAttr() const;
106 StringRef getCPUProfile() const;
109 ARMTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
111 StringRef getABI() const override;
112 bool setABI(const std::string &Name) override;
114 // FIXME: This should be based on Arch attributes, not CPU names.
116 initFeatureMap(llvm::StringMap<bool> &Features, DiagnosticsEngine &Diags,
118 const std::vector<std::string> &FeaturesVec) const override;
120 bool handleTargetFeatures(std::vector<std::string> &Features,
121 DiagnosticsEngine &Diags) override;
123 bool hasFeature(StringRef Feature) const override;
125 bool isValidCPUName(StringRef Name) const override;
126 void fillValidCPUList(SmallVectorImpl<StringRef> &Values) const override;
128 bool setCPU(const std::string &Name) override;
130 bool setFPMath(StringRef Name) override;
132 bool useFP16ConversionIntrinsics() const override {
136 void getTargetDefinesARMV81A(const LangOptions &Opts,
137 MacroBuilder &Builder) const;
139 void getTargetDefinesARMV82A(const LangOptions &Opts,
140 MacroBuilder &Builder) const;
141 void getTargetDefines(const LangOptions &Opts,
142 MacroBuilder &Builder) const override;
144 ArrayRef<Builtin::Info> getTargetBuiltins() const override;
146 bool isCLZForZeroUndef() const override;
147 BuiltinVaListKind getBuiltinVaListKind() const override;
149 ArrayRef<const char *> getGCCRegNames() const override;
150 ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override;
151 bool validateAsmConstraint(const char *&Name,
152 TargetInfo::ConstraintInfo &Info) const override;
153 std::string convertConstraint(const char *&Constraint) const override;
155 validateConstraintModifier(StringRef Constraint, char Modifier, unsigned Size,
156 std::string &SuggestedModifier) const override;
157 const char *getClobbers() const override;
159 StringRef getConstraintRegister(StringRef Constraint,
160 StringRef Expression) const override {
164 CallingConvCheckResult checkCallingConvention(CallingConv CC) const override;
166 int getEHDataRegisterNumber(unsigned RegNo) const override;
168 bool hasSjLjLowering() const override;
171 class LLVM_LIBRARY_VISIBILITY ARMleTargetInfo : public ARMTargetInfo {
173 ARMleTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
174 void getTargetDefines(const LangOptions &Opts,
175 MacroBuilder &Builder) const override;
178 class LLVM_LIBRARY_VISIBILITY ARMbeTargetInfo : public ARMTargetInfo {
180 ARMbeTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
181 void getTargetDefines(const LangOptions &Opts,
182 MacroBuilder &Builder) const override;
185 class LLVM_LIBRARY_VISIBILITY WindowsARMTargetInfo
186 : public WindowsTargetInfo<ARMleTargetInfo> {
187 const llvm::Triple Triple;
190 WindowsARMTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
192 void getVisualStudioDefines(const LangOptions &Opts,
193 MacroBuilder &Builder) const;
195 BuiltinVaListKind getBuiltinVaListKind() const override;
197 CallingConvCheckResult checkCallingConvention(CallingConv CC) const override;
200 // Windows ARM + Itanium C++ ABI Target
201 class LLVM_LIBRARY_VISIBILITY ItaniumWindowsARMleTargetInfo
202 : public WindowsARMTargetInfo {
204 ItaniumWindowsARMleTargetInfo(const llvm::Triple &Triple,
205 const TargetOptions &Opts);
207 void getTargetDefines(const LangOptions &Opts,
208 MacroBuilder &Builder) const override;
211 // Windows ARM, MS (C++) ABI
212 class LLVM_LIBRARY_VISIBILITY MicrosoftARMleTargetInfo
213 : public WindowsARMTargetInfo {
215 MicrosoftARMleTargetInfo(const llvm::Triple &Triple,
216 const TargetOptions &Opts);
218 void getTargetDefines(const LangOptions &Opts,
219 MacroBuilder &Builder) const override;
223 class LLVM_LIBRARY_VISIBILITY MinGWARMTargetInfo : public WindowsARMTargetInfo {
225 MinGWARMTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
227 void getTargetDefines(const LangOptions &Opts,
228 MacroBuilder &Builder) const override;
232 class LLVM_LIBRARY_VISIBILITY CygwinARMTargetInfo : public ARMleTargetInfo {
234 CygwinARMTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
236 void getTargetDefines(const LangOptions &Opts,
237 MacroBuilder &Builder) const override;
240 class LLVM_LIBRARY_VISIBILITY DarwinARMTargetInfo
241 : public DarwinTargetInfo<ARMleTargetInfo> {
243 void getOSDefines(const LangOptions &Opts, const llvm::Triple &Triple,
244 MacroBuilder &Builder) const override;
247 DarwinARMTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts);
250 // 32-bit RenderScript is armv7 with width and align of 'long' set to 8-bytes
251 class LLVM_LIBRARY_VISIBILITY RenderScript32TargetInfo
252 : public ARMleTargetInfo {
254 RenderScript32TargetInfo(const llvm::Triple &Triple,
255 const TargetOptions &Opts);
257 void getTargetDefines(const LangOptions &Opts,
258 MacroBuilder &Builder) const override;
261 } // namespace targets
264 #endif // LLVM_CLANG_LIB_BASIC_TARGETS_ARM_H