clang  10.0.0git
InitPreprocessor.cpp
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1 //===--- InitPreprocessor.cpp - PP initialization code. ---------*- 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 implements the clang::InitializePreprocessor function.
10 //
11 //===----------------------------------------------------------------------===//
12 
16 #include "clang/Basic/SyncScope.h"
17 #include "clang/Basic/TargetInfo.h"
18 #include "clang/Basic/Version.h"
21 #include "clang/Frontend/Utils.h"
22 #include "clang/Lex/HeaderSearch.h"
23 #include "clang/Lex/Preprocessor.h"
26 #include "llvm/ADT/APFloat.h"
27 #include "llvm/IR/DataLayout.h"
28 using namespace clang;
29 
30 static bool MacroBodyEndsInBackslash(StringRef MacroBody) {
31  while (!MacroBody.empty() && isWhitespace(MacroBody.back()))
32  MacroBody = MacroBody.drop_back();
33  return !MacroBody.empty() && MacroBody.back() == '\\';
34 }
35 
36 // Append a #define line to Buf for Macro. Macro should be of the form XXX,
37 // in which case we emit "#define XXX 1" or "XXX=Y z W" in which case we emit
38 // "#define XXX Y z W". To get a #define with no value, use "XXX=".
39 static void DefineBuiltinMacro(MacroBuilder &Builder, StringRef Macro,
40  DiagnosticsEngine &Diags) {
41  std::pair<StringRef, StringRef> MacroPair = Macro.split('=');
42  StringRef MacroName = MacroPair.first;
43  StringRef MacroBody = MacroPair.second;
44  if (MacroName.size() != Macro.size()) {
45  // Per GCC -D semantics, the macro ends at \n if it exists.
46  StringRef::size_type End = MacroBody.find_first_of("\n\r");
47  if (End != StringRef::npos)
48  Diags.Report(diag::warn_fe_macro_contains_embedded_newline)
49  << MacroName;
50  MacroBody = MacroBody.substr(0, End);
51  // We handle macro bodies which end in a backslash by appending an extra
52  // backslash+newline. This makes sure we don't accidentally treat the
53  // backslash as a line continuation marker.
54  if (MacroBodyEndsInBackslash(MacroBody))
55  Builder.defineMacro(MacroName, Twine(MacroBody) + "\\\n");
56  else
57  Builder.defineMacro(MacroName, MacroBody);
58  } else {
59  // Push "macroname 1".
60  Builder.defineMacro(Macro);
61  }
62 }
63 
64 /// AddImplicitInclude - Add an implicit \#include of the specified file to the
65 /// predefines buffer.
66 /// As these includes are generated by -include arguments the header search
67 /// logic is going to search relatively to the current working directory.
68 static void AddImplicitInclude(MacroBuilder &Builder, StringRef File) {
69  Builder.append(Twine("#include \"") + File + "\"");
70 }
71 
72 static void AddImplicitIncludeMacros(MacroBuilder &Builder, StringRef File) {
73  Builder.append(Twine("#__include_macros \"") + File + "\"");
74  // Marker token to stop the __include_macros fetch loop.
75  Builder.append("##"); // ##?
76 }
77 
78 /// Add an implicit \#include using the original file used to generate
79 /// a PCH file.
81  const PCHContainerReader &PCHContainerRdr,
82  StringRef ImplicitIncludePCH) {
83  std::string OriginalFile =
84  ASTReader::getOriginalSourceFile(ImplicitIncludePCH, PP.getFileManager(),
85  PCHContainerRdr, PP.getDiagnostics());
86  if (OriginalFile.empty())
87  return;
88 
89  AddImplicitInclude(Builder, OriginalFile);
90 }
91 
92 /// PickFP - This is used to pick a value based on the FP semantics of the
93 /// specified FP model.
94 template <typename T>
95 static T PickFP(const llvm::fltSemantics *Sem, T IEEEHalfVal, T IEEESingleVal,
96  T IEEEDoubleVal, T X87DoubleExtendedVal, T PPCDoubleDoubleVal,
97  T IEEEQuadVal) {
98  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::IEEEhalf())
99  return IEEEHalfVal;
100  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::IEEEsingle())
101  return IEEESingleVal;
102  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::IEEEdouble())
103  return IEEEDoubleVal;
104  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::x87DoubleExtended())
105  return X87DoubleExtendedVal;
106  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::PPCDoubleDouble())
107  return PPCDoubleDoubleVal;
108  assert(Sem == (const llvm::fltSemantics*)&llvm::APFloat::IEEEquad());
109  return IEEEQuadVal;
110 }
111 
112 static void DefineFloatMacros(MacroBuilder &Builder, StringRef Prefix,
113  const llvm::fltSemantics *Sem, StringRef Ext) {
114  const char *DenormMin, *Epsilon, *Max, *Min;
115  DenormMin = PickFP(Sem, "5.9604644775390625e-8", "1.40129846e-45",
116  "4.9406564584124654e-324", "3.64519953188247460253e-4951",
117  "4.94065645841246544176568792868221e-324",
118  "6.47517511943802511092443895822764655e-4966");
119  int Digits = PickFP(Sem, 3, 6, 15, 18, 31, 33);
120  int DecimalDigits = PickFP(Sem, 5, 9, 17, 21, 33, 36);
121  Epsilon = PickFP(Sem, "9.765625e-4", "1.19209290e-7",
122  "2.2204460492503131e-16", "1.08420217248550443401e-19",
123  "4.94065645841246544176568792868221e-324",
124  "1.92592994438723585305597794258492732e-34");
125  int MantissaDigits = PickFP(Sem, 11, 24, 53, 64, 106, 113);
126  int Min10Exp = PickFP(Sem, -4, -37, -307, -4931, -291, -4931);
127  int Max10Exp = PickFP(Sem, 4, 38, 308, 4932, 308, 4932);
128  int MinExp = PickFP(Sem, -13, -125, -1021, -16381, -968, -16381);
129  int MaxExp = PickFP(Sem, 16, 128, 1024, 16384, 1024, 16384);
130  Min = PickFP(Sem, "6.103515625e-5", "1.17549435e-38", "2.2250738585072014e-308",
131  "3.36210314311209350626e-4932",
132  "2.00416836000897277799610805135016e-292",
133  "3.36210314311209350626267781732175260e-4932");
134  Max = PickFP(Sem, "6.5504e+4", "3.40282347e+38", "1.7976931348623157e+308",
135  "1.18973149535723176502e+4932",
136  "1.79769313486231580793728971405301e+308",
137  "1.18973149535723176508575932662800702e+4932");
138 
139  SmallString<32> DefPrefix;
140  DefPrefix = "__";
141  DefPrefix += Prefix;
142  DefPrefix += "_";
143 
144  Builder.defineMacro(DefPrefix + "DENORM_MIN__", Twine(DenormMin)+Ext);
145  Builder.defineMacro(DefPrefix + "HAS_DENORM__");
146  Builder.defineMacro(DefPrefix + "DIG__", Twine(Digits));
147  Builder.defineMacro(DefPrefix + "DECIMAL_DIG__", Twine(DecimalDigits));
148  Builder.defineMacro(DefPrefix + "EPSILON__", Twine(Epsilon)+Ext);
149  Builder.defineMacro(DefPrefix + "HAS_INFINITY__");
150  Builder.defineMacro(DefPrefix + "HAS_QUIET_NAN__");
151  Builder.defineMacro(DefPrefix + "MANT_DIG__", Twine(MantissaDigits));
152 
153  Builder.defineMacro(DefPrefix + "MAX_10_EXP__", Twine(Max10Exp));
154  Builder.defineMacro(DefPrefix + "MAX_EXP__", Twine(MaxExp));
155  Builder.defineMacro(DefPrefix + "MAX__", Twine(Max)+Ext);
156 
157  Builder.defineMacro(DefPrefix + "MIN_10_EXP__","("+Twine(Min10Exp)+")");
158  Builder.defineMacro(DefPrefix + "MIN_EXP__", "("+Twine(MinExp)+")");
159  Builder.defineMacro(DefPrefix + "MIN__", Twine(Min)+Ext);
160 }
161 
162 
163 /// DefineTypeSize - Emit a macro to the predefines buffer that declares a macro
164 /// named MacroName with the max value for a type with width 'TypeWidth' a
165 /// signedness of 'isSigned' and with a value suffix of 'ValSuffix' (e.g. LL).
166 static void DefineTypeSize(const Twine &MacroName, unsigned TypeWidth,
167  StringRef ValSuffix, bool isSigned,
168  MacroBuilder &Builder) {
169  llvm::APInt MaxVal = isSigned ? llvm::APInt::getSignedMaxValue(TypeWidth)
170  : llvm::APInt::getMaxValue(TypeWidth);
171  Builder.defineMacro(MacroName, MaxVal.toString(10, isSigned) + ValSuffix);
172 }
173 
174 /// DefineTypeSize - An overloaded helper that uses TargetInfo to determine
175 /// the width, suffix, and signedness of the given type
176 static void DefineTypeSize(const Twine &MacroName, TargetInfo::IntType Ty,
177  const TargetInfo &TI, MacroBuilder &Builder) {
178  DefineTypeSize(MacroName, TI.getTypeWidth(Ty), TI.getTypeConstantSuffix(Ty),
179  TI.isTypeSigned(Ty), Builder);
180 }
181 
182 static void DefineFmt(const Twine &Prefix, TargetInfo::IntType Ty,
183  const TargetInfo &TI, MacroBuilder &Builder) {
184  bool IsSigned = TI.isTypeSigned(Ty);
185  StringRef FmtModifier = TI.getTypeFormatModifier(Ty);
186  for (const char *Fmt = IsSigned ? "di" : "ouxX"; *Fmt; ++Fmt) {
187  Builder.defineMacro(Prefix + "_FMT" + Twine(*Fmt) + "__",
188  Twine("\"") + FmtModifier + Twine(*Fmt) + "\"");
189  }
190 }
191 
192 static void DefineType(const Twine &MacroName, TargetInfo::IntType Ty,
193  MacroBuilder &Builder) {
194  Builder.defineMacro(MacroName, TargetInfo::getTypeName(Ty));
195 }
196 
197 static void DefineTypeWidth(StringRef MacroName, TargetInfo::IntType Ty,
198  const TargetInfo &TI, MacroBuilder &Builder) {
199  Builder.defineMacro(MacroName, Twine(TI.getTypeWidth(Ty)));
200 }
201 
202 static void DefineTypeSizeof(StringRef MacroName, unsigned BitWidth,
203  const TargetInfo &TI, MacroBuilder &Builder) {
204  Builder.defineMacro(MacroName,
205  Twine(BitWidth / TI.getCharWidth()));
206 }
207 
209  const TargetInfo &TI,
210  MacroBuilder &Builder) {
211  int TypeWidth = TI.getTypeWidth(Ty);
212  bool IsSigned = TI.isTypeSigned(Ty);
213 
214  // Use the target specified int64 type, when appropriate, so that [u]int64_t
215  // ends up being defined in terms of the correct type.
216  if (TypeWidth == 64)
217  Ty = IsSigned ? TI.getInt64Type() : TI.getUInt64Type();
218 
219  const char *Prefix = IsSigned ? "__INT" : "__UINT";
220 
221  DefineType(Prefix + Twine(TypeWidth) + "_TYPE__", Ty, Builder);
222  DefineFmt(Prefix + Twine(TypeWidth), Ty, TI, Builder);
223 
224  StringRef ConstSuffix(TI.getTypeConstantSuffix(Ty));
225  Builder.defineMacro(Prefix + Twine(TypeWidth) + "_C_SUFFIX__", ConstSuffix);
226 }
227 
229  const TargetInfo &TI,
230  MacroBuilder &Builder) {
231  int TypeWidth = TI.getTypeWidth(Ty);
232  bool IsSigned = TI.isTypeSigned(Ty);
233 
234  // Use the target specified int64 type, when appropriate, so that [u]int64_t
235  // ends up being defined in terms of the correct type.
236  if (TypeWidth == 64)
237  Ty = IsSigned ? TI.getInt64Type() : TI.getUInt64Type();
238 
239  const char *Prefix = IsSigned ? "__INT" : "__UINT";
240  DefineTypeSize(Prefix + Twine(TypeWidth) + "_MAX__", Ty, TI, Builder);
241 }
242 
243 static void DefineLeastWidthIntType(unsigned TypeWidth, bool IsSigned,
244  const TargetInfo &TI,
245  MacroBuilder &Builder) {
246  TargetInfo::IntType Ty = TI.getLeastIntTypeByWidth(TypeWidth, IsSigned);
247  if (Ty == TargetInfo::NoInt)
248  return;
249 
250  const char *Prefix = IsSigned ? "__INT_LEAST" : "__UINT_LEAST";
251  DefineType(Prefix + Twine(TypeWidth) + "_TYPE__", Ty, Builder);
252  DefineTypeSize(Prefix + Twine(TypeWidth) + "_MAX__", Ty, TI, Builder);
253  DefineFmt(Prefix + Twine(TypeWidth), Ty, TI, Builder);
254 }
255 
256 static void DefineFastIntType(unsigned TypeWidth, bool IsSigned,
257  const TargetInfo &TI, MacroBuilder &Builder) {
258  // stdint.h currently defines the fast int types as equivalent to the least
259  // types.
260  TargetInfo::IntType Ty = TI.getLeastIntTypeByWidth(TypeWidth, IsSigned);
261  if (Ty == TargetInfo::NoInt)
262  return;
263 
264  const char *Prefix = IsSigned ? "__INT_FAST" : "__UINT_FAST";
265  DefineType(Prefix + Twine(TypeWidth) + "_TYPE__", Ty, Builder);
266  DefineTypeSize(Prefix + Twine(TypeWidth) + "_MAX__", Ty, TI, Builder);
267 
268  DefineFmt(Prefix + Twine(TypeWidth), Ty, TI, Builder);
269 }
270 
271 
272 /// Get the value the ATOMIC_*_LOCK_FREE macro should have for a type with
273 /// the specified properties.
274 static const char *getLockFreeValue(unsigned TypeWidth, unsigned TypeAlign,
275  unsigned InlineWidth) {
276  // Fully-aligned, power-of-2 sizes no larger than the inline
277  // width will be inlined as lock-free operations.
278  if (TypeWidth == TypeAlign && (TypeWidth & (TypeWidth - 1)) == 0 &&
279  TypeWidth <= InlineWidth)
280  return "2"; // "always lock free"
281  // We cannot be certain what operations the lib calls might be
282  // able to implement as lock-free on future processors.
283  return "1"; // "sometimes lock free"
284 }
285 
286 /// Add definitions required for a smooth interaction between
287 /// Objective-C++ automated reference counting and libstdc++ (4.2).
288 static void AddObjCXXARCLibstdcxxDefines(const LangOptions &LangOpts,
289  MacroBuilder &Builder) {
290  Builder.defineMacro("_GLIBCXX_PREDEFINED_OBJC_ARC_IS_SCALAR");
291 
292  std::string Result;
293  {
294  // Provide specializations for the __is_scalar type trait so that
295  // lifetime-qualified objects are not considered "scalar" types, which
296  // libstdc++ uses as an indicator of the presence of trivial copy, assign,
297  // default-construct, and destruct semantics (none of which hold for
298  // lifetime-qualified objects in ARC).
299  llvm::raw_string_ostream Out(Result);
300 
301  Out << "namespace std {\n"
302  << "\n"
303  << "struct __true_type;\n"
304  << "struct __false_type;\n"
305  << "\n";
306 
307  Out << "template<typename _Tp> struct __is_scalar;\n"
308  << "\n";
309 
310  if (LangOpts.ObjCAutoRefCount) {
311  Out << "template<typename _Tp>\n"
312  << "struct __is_scalar<__attribute__((objc_ownership(strong))) _Tp> {\n"
313  << " enum { __value = 0 };\n"
314  << " typedef __false_type __type;\n"
315  << "};\n"
316  << "\n";
317  }
318 
319  if (LangOpts.ObjCWeak) {
320  Out << "template<typename _Tp>\n"
321  << "struct __is_scalar<__attribute__((objc_ownership(weak))) _Tp> {\n"
322  << " enum { __value = 0 };\n"
323  << " typedef __false_type __type;\n"
324  << "};\n"
325  << "\n";
326  }
327 
328  if (LangOpts.ObjCAutoRefCount) {
329  Out << "template<typename _Tp>\n"
330  << "struct __is_scalar<__attribute__((objc_ownership(autoreleasing)))"
331  << " _Tp> {\n"
332  << " enum { __value = 0 };\n"
333  << " typedef __false_type __type;\n"
334  << "};\n"
335  << "\n";
336  }
337 
338  Out << "}\n";
339  }
340  Builder.append(Result);
341 }
342 
344  const LangOptions &LangOpts,
345  const FrontendOptions &FEOpts,
346  MacroBuilder &Builder) {
347  if (!LangOpts.MSVCCompat && !LangOpts.TraditionalCPP)
348  Builder.defineMacro("__STDC__");
349  if (LangOpts.Freestanding)
350  Builder.defineMacro("__STDC_HOSTED__", "0");
351  else
352  Builder.defineMacro("__STDC_HOSTED__");
353 
354  if (!LangOpts.CPlusPlus) {
355  if (LangOpts.C17)
356  Builder.defineMacro("__STDC_VERSION__", "201710L");
357  else if (LangOpts.C11)
358  Builder.defineMacro("__STDC_VERSION__", "201112L");
359  else if (LangOpts.C99)
360  Builder.defineMacro("__STDC_VERSION__", "199901L");
361  else if (!LangOpts.GNUMode && LangOpts.Digraphs)
362  Builder.defineMacro("__STDC_VERSION__", "199409L");
363  } else {
364  // FIXME: Use correct value for C++20.
365  if (LangOpts.CPlusPlus2a)
366  Builder.defineMacro("__cplusplus", "201707L");
367  // C++17 [cpp.predefined]p1:
368  // The name __cplusplus is defined to the value 201703L when compiling a
369  // C++ translation unit.
370  else if (LangOpts.CPlusPlus17)
371  Builder.defineMacro("__cplusplus", "201703L");
372  // C++1y [cpp.predefined]p1:
373  // The name __cplusplus is defined to the value 201402L when compiling a
374  // C++ translation unit.
375  else if (LangOpts.CPlusPlus14)
376  Builder.defineMacro("__cplusplus", "201402L");
377  // C++11 [cpp.predefined]p1:
378  // The name __cplusplus is defined to the value 201103L when compiling a
379  // C++ translation unit.
380  else if (LangOpts.CPlusPlus11)
381  Builder.defineMacro("__cplusplus", "201103L");
382  // C++03 [cpp.predefined]p1:
383  // The name __cplusplus is defined to the value 199711L when compiling a
384  // C++ translation unit.
385  else
386  Builder.defineMacro("__cplusplus", "199711L");
387 
388  // C++1z [cpp.predefined]p1:
389  // An integer literal of type std::size_t whose value is the alignment
390  // guaranteed by a call to operator new(std::size_t)
391  //
392  // We provide this in all language modes, since it seems generally useful.
393  Builder.defineMacro("__STDCPP_DEFAULT_NEW_ALIGNMENT__",
394  Twine(TI.getNewAlign() / TI.getCharWidth()) +
396  }
397 
398  // In C11 these are environment macros. In C++11 they are only defined
399  // as part of <cuchar>. To prevent breakage when mixing C and C++
400  // code, define these macros unconditionally. We can define them
401  // unconditionally, as Clang always uses UTF-16 and UTF-32 for 16-bit
402  // and 32-bit character literals.
403  Builder.defineMacro("__STDC_UTF_16__", "1");
404  Builder.defineMacro("__STDC_UTF_32__", "1");
405 
406  if (LangOpts.ObjC)
407  Builder.defineMacro("__OBJC__");
408 
409  // OpenCL v1.0/1.1 s6.9, v1.2/2.0 s6.10: Preprocessor Directives and Macros.
410  if (LangOpts.OpenCL) {
411  if (LangOpts.CPlusPlus) {
412  if (LangOpts.OpenCLCPlusPlusVersion == 100)
413  Builder.defineMacro("__OPENCL_CPP_VERSION__", "100");
414  else
415  llvm_unreachable("Unsupported C++ version for OpenCL");
416  Builder.defineMacro("__CL_CPP_VERSION_1_0__", "100");
417  } else {
418  // OpenCL v1.0 and v1.1 do not have a predefined macro to indicate the
419  // language standard with which the program is compiled. __OPENCL_VERSION__
420  // is for the OpenCL version supported by the OpenCL device, which is not
421  // necessarily the language standard with which the program is compiled.
422  // A shared OpenCL header file requires a macro to indicate the language
423  // standard. As a workaround, __OPENCL_C_VERSION__ is defined for
424  // OpenCL v1.0 and v1.1.
425  switch (LangOpts.OpenCLVersion) {
426  case 100:
427  Builder.defineMacro("__OPENCL_C_VERSION__", "100");
428  break;
429  case 110:
430  Builder.defineMacro("__OPENCL_C_VERSION__", "110");
431  break;
432  case 120:
433  Builder.defineMacro("__OPENCL_C_VERSION__", "120");
434  break;
435  case 200:
436  Builder.defineMacro("__OPENCL_C_VERSION__", "200");
437  break;
438  default:
439  llvm_unreachable("Unsupported OpenCL version");
440  }
441  }
442  Builder.defineMacro("CL_VERSION_1_0", "100");
443  Builder.defineMacro("CL_VERSION_1_1", "110");
444  Builder.defineMacro("CL_VERSION_1_2", "120");
445  Builder.defineMacro("CL_VERSION_2_0", "200");
446 
447  if (TI.isLittleEndian())
448  Builder.defineMacro("__ENDIAN_LITTLE__");
449 
450  if (LangOpts.FastRelaxedMath)
451  Builder.defineMacro("__FAST_RELAXED_MATH__");
452  }
453  // Not "standard" per se, but available even with the -undef flag.
454  if (LangOpts.AsmPreprocessor)
455  Builder.defineMacro("__ASSEMBLER__");
456  if (LangOpts.CUDA && !LangOpts.HIP)
457  Builder.defineMacro("__CUDA__");
458  if (LangOpts.HIP) {
459  Builder.defineMacro("__HIP__");
460  Builder.defineMacro("__HIPCC__");
461  if (LangOpts.CUDAIsDevice)
462  Builder.defineMacro("__HIP_DEVICE_COMPILE__");
463  }
464 }
465 
466 /// Initialize the predefined C++ language feature test macros defined in
467 /// ISO/IEC JTC1/SC22/WG21 (C++) SD-6: "SG10 Feature Test Recommendations".
469  MacroBuilder &Builder) {
470  // C++98 features.
471  if (LangOpts.RTTI)
472  Builder.defineMacro("__cpp_rtti", "199711L");
473  if (LangOpts.CXXExceptions)
474  Builder.defineMacro("__cpp_exceptions", "199711L");
475 
476  // C++11 features.
477  if (LangOpts.CPlusPlus11) {
478  Builder.defineMacro("__cpp_unicode_characters", "200704L");
479  Builder.defineMacro("__cpp_raw_strings", "200710L");
480  Builder.defineMacro("__cpp_unicode_literals", "200710L");
481  Builder.defineMacro("__cpp_user_defined_literals", "200809L");
482  Builder.defineMacro("__cpp_lambdas", "200907L");
483  Builder.defineMacro("__cpp_constexpr",
484  LangOpts.CPlusPlus2a ? "201907L" :
485  LangOpts.CPlusPlus17 ? "201603L" :
486  LangOpts.CPlusPlus14 ? "201304L" : "200704");
487  Builder.defineMacro("__cpp_constexpr_in_decltype", "201711L");
488  Builder.defineMacro("__cpp_range_based_for",
489  LangOpts.CPlusPlus17 ? "201603L" : "200907");
490  Builder.defineMacro("__cpp_static_assert",
491  LangOpts.CPlusPlus17 ? "201411L" : "200410");
492  Builder.defineMacro("__cpp_decltype", "200707L");
493  Builder.defineMacro("__cpp_attributes", "200809L");
494  Builder.defineMacro("__cpp_rvalue_references", "200610L");
495  Builder.defineMacro("__cpp_variadic_templates", "200704L");
496  Builder.defineMacro("__cpp_initializer_lists", "200806L");
497  Builder.defineMacro("__cpp_delegating_constructors", "200604L");
498  Builder.defineMacro("__cpp_nsdmi", "200809L");
499  Builder.defineMacro("__cpp_inheriting_constructors", "201511L");
500  Builder.defineMacro("__cpp_ref_qualifiers", "200710L");
501  Builder.defineMacro("__cpp_alias_templates", "200704L");
502  }
503  if (LangOpts.ThreadsafeStatics)
504  Builder.defineMacro("__cpp_threadsafe_static_init", "200806L");
505 
506  // C++14 features.
507  if (LangOpts.CPlusPlus14) {
508  Builder.defineMacro("__cpp_binary_literals", "201304L");
509  Builder.defineMacro("__cpp_digit_separators", "201309L");
510  Builder.defineMacro("__cpp_init_captures",
511  LangOpts.CPlusPlus2a ? "201803L" : "201304L");
512  Builder.defineMacro("__cpp_generic_lambdas",
513  LangOpts.CPlusPlus2a ? "201707L" : "201304L");
514  Builder.defineMacro("__cpp_decltype_auto", "201304L");
515  Builder.defineMacro("__cpp_return_type_deduction", "201304L");
516  Builder.defineMacro("__cpp_aggregate_nsdmi", "201304L");
517  Builder.defineMacro("__cpp_variable_templates", "201304L");
518  }
519  if (LangOpts.SizedDeallocation)
520  Builder.defineMacro("__cpp_sized_deallocation", "201309L");
521 
522  // C++17 features.
523  if (LangOpts.CPlusPlus17) {
524  Builder.defineMacro("__cpp_hex_float", "201603L");
525  Builder.defineMacro("__cpp_inline_variables", "201606L");
526  Builder.defineMacro("__cpp_noexcept_function_type", "201510L");
527  Builder.defineMacro("__cpp_capture_star_this", "201603L");
528  Builder.defineMacro("__cpp_if_constexpr", "201606L");
529  Builder.defineMacro("__cpp_deduction_guides", "201703L"); // (not latest)
530  Builder.defineMacro("__cpp_template_auto", "201606L"); // (old name)
531  Builder.defineMacro("__cpp_namespace_attributes", "201411L");
532  Builder.defineMacro("__cpp_enumerator_attributes", "201411L");
533  Builder.defineMacro("__cpp_nested_namespace_definitions", "201411L");
534  Builder.defineMacro("__cpp_variadic_using", "201611L");
535  Builder.defineMacro("__cpp_aggregate_bases", "201603L");
536  Builder.defineMacro("__cpp_structured_bindings", "201606L");
537  Builder.defineMacro("__cpp_nontype_template_args",
538  "201411L"); // (not latest)
539  Builder.defineMacro("__cpp_fold_expressions", "201603L");
540  Builder.defineMacro("__cpp_guaranteed_copy_elision", "201606L");
541  Builder.defineMacro("__cpp_nontype_template_parameter_auto", "201606L");
542  }
543  if (LangOpts.AlignedAllocation && !LangOpts.AlignedAllocationUnavailable)
544  Builder.defineMacro("__cpp_aligned_new", "201606L");
545  if (LangOpts.RelaxedTemplateTemplateArgs)
546  Builder.defineMacro("__cpp_template_template_args", "201611L");
547 
548  // C++20 features.
549  if (LangOpts.CPlusPlus2a) {
550  //Builder.defineMacro("__cpp_aggregate_paren_init", "201902L");
551  Builder.defineMacro("__cpp_concepts", "201907L");
552  Builder.defineMacro("__cpp_conditional_explicit", "201806L");
553  //Builder.defineMacro("__cpp_consteval", "201811L");
554  Builder.defineMacro("__cpp_constexpr_dynamic_alloc", "201907L");
555  Builder.defineMacro("__cpp_constinit", "201907L");
556  //Builder.defineMacro("__cpp_coroutines", "201902L");
557  Builder.defineMacro("__cpp_designated_initializers", "201707L");
558  Builder.defineMacro("__cpp_impl_three_way_comparison", "201907L");
559  //Builder.defineMacro("__cpp_modules", "201907L");
560  //Builder.defineMacro("__cpp_using_enum", "201907L");
561  }
562  if (LangOpts.Char8)
563  Builder.defineMacro("__cpp_char8_t", "201811L");
564  Builder.defineMacro("__cpp_impl_destroying_delete", "201806L");
565 
566  // TS features.
567  if (LangOpts.Coroutines)
568  Builder.defineMacro("__cpp_coroutines", "201703L");
569 }
570 
572  const LangOptions &LangOpts,
573  const FrontendOptions &FEOpts,
574  const PreprocessorOptions &PPOpts,
575  MacroBuilder &Builder) {
576  // Compiler version introspection macros.
577  Builder.defineMacro("__llvm__"); // LLVM Backend
578  Builder.defineMacro("__clang__"); // Clang Frontend
579 #define TOSTR2(X) #X
580 #define TOSTR(X) TOSTR2(X)
581  Builder.defineMacro("__clang_major__", TOSTR(CLANG_VERSION_MAJOR));
582  Builder.defineMacro("__clang_minor__", TOSTR(CLANG_VERSION_MINOR));
583  Builder.defineMacro("__clang_patchlevel__", TOSTR(CLANG_VERSION_PATCHLEVEL));
584 #undef TOSTR
585 #undef TOSTR2
586  Builder.defineMacro("__clang_version__",
587  "\"" CLANG_VERSION_STRING " "
588  + getClangFullRepositoryVersion() + "\"");
589 
590  if (LangOpts.GNUCVersion != 0) {
591  // Major, minor, patch, are given two decimal places each, so 4.2.1 becomes
592  // 40201.
593  unsigned GNUCMajor = LangOpts.GNUCVersion / 100 / 100;
594  unsigned GNUCMinor = LangOpts.GNUCVersion / 100 % 100;
595  unsigned GNUCPatch = LangOpts.GNUCVersion % 100;
596  Builder.defineMacro("__GNUC__", Twine(GNUCMajor));
597  Builder.defineMacro("__GNUC_MINOR__", Twine(GNUCMinor));
598  Builder.defineMacro("__GNUC_PATCHLEVEL__", Twine(GNUCPatch));
599  Builder.defineMacro("__GXX_ABI_VERSION", "1002");
600 
601  if (LangOpts.CPlusPlus) {
602  Builder.defineMacro("__GNUG__", Twine(GNUCMajor));
603  Builder.defineMacro("__GXX_WEAK__");
604  }
605  }
606 
607  // Define macros for the C11 / C++11 memory orderings
608  Builder.defineMacro("__ATOMIC_RELAXED", "0");
609  Builder.defineMacro("__ATOMIC_CONSUME", "1");
610  Builder.defineMacro("__ATOMIC_ACQUIRE", "2");
611  Builder.defineMacro("__ATOMIC_RELEASE", "3");
612  Builder.defineMacro("__ATOMIC_ACQ_REL", "4");
613  Builder.defineMacro("__ATOMIC_SEQ_CST", "5");
614 
615  // Define macros for the OpenCL memory scope.
616  // The values should match AtomicScopeOpenCLModel::ID enum.
617  static_assert(
618  static_cast<unsigned>(AtomicScopeOpenCLModel::WorkGroup) == 1 &&
619  static_cast<unsigned>(AtomicScopeOpenCLModel::Device) == 2 &&
620  static_cast<unsigned>(AtomicScopeOpenCLModel::AllSVMDevices) == 3 &&
621  static_cast<unsigned>(AtomicScopeOpenCLModel::SubGroup) == 4,
622  "Invalid OpenCL memory scope enum definition");
623  Builder.defineMacro("__OPENCL_MEMORY_SCOPE_WORK_ITEM", "0");
624  Builder.defineMacro("__OPENCL_MEMORY_SCOPE_WORK_GROUP", "1");
625  Builder.defineMacro("__OPENCL_MEMORY_SCOPE_DEVICE", "2");
626  Builder.defineMacro("__OPENCL_MEMORY_SCOPE_ALL_SVM_DEVICES", "3");
627  Builder.defineMacro("__OPENCL_MEMORY_SCOPE_SUB_GROUP", "4");
628 
629  // Support for #pragma redefine_extname (Sun compatibility)
630  Builder.defineMacro("__PRAGMA_REDEFINE_EXTNAME", "1");
631 
632  // Previously this macro was set to a string aiming to achieve compatibility
633  // with GCC 4.2.1. Now, just return the full Clang version
634  Builder.defineMacro("__VERSION__", "\"" +
635  Twine(getClangFullCPPVersion()) + "\"");
636 
637  // Initialize language-specific preprocessor defines.
638 
639  // Standard conforming mode?
640  if (!LangOpts.GNUMode && !LangOpts.MSVCCompat)
641  Builder.defineMacro("__STRICT_ANSI__");
642 
643  if (LangOpts.GNUCVersion && LangOpts.CPlusPlus11)
644  Builder.defineMacro("__GXX_EXPERIMENTAL_CXX0X__");
645 
646  if (LangOpts.ObjC) {
647  if (LangOpts.ObjCRuntime.isNonFragile()) {
648  Builder.defineMacro("__OBJC2__");
649 
650  if (LangOpts.ObjCExceptions)
651  Builder.defineMacro("OBJC_ZEROCOST_EXCEPTIONS");
652  }
653 
654  if (LangOpts.getGC() != LangOptions::NonGC)
655  Builder.defineMacro("__OBJC_GC__");
656 
657  if (LangOpts.ObjCRuntime.isNeXTFamily())
658  Builder.defineMacro("__NEXT_RUNTIME__");
659 
660  if (LangOpts.ObjCRuntime.getKind() == ObjCRuntime::GNUstep) {
661  auto version = LangOpts.ObjCRuntime.getVersion();
662  std::string versionString = "1";
663  // Don't rely on the tuple argument, because we can be asked to target
664  // later ABIs than we actually support, so clamp these values to those
665  // currently supported
666  if (version >= VersionTuple(2, 0))
667  Builder.defineMacro("__OBJC_GNUSTEP_RUNTIME_ABI__", "20");
668  else
669  Builder.defineMacro("__OBJC_GNUSTEP_RUNTIME_ABI__",
670  "1" + Twine(std::min(8U, version.getMinor().getValueOr(0))));
671  }
672 
673  if (LangOpts.ObjCRuntime.getKind() == ObjCRuntime::ObjFW) {
674  VersionTuple tuple = LangOpts.ObjCRuntime.getVersion();
675 
676  unsigned minor = 0;
677  if (tuple.getMinor().hasValue())
678  minor = tuple.getMinor().getValue();
679 
680  unsigned subminor = 0;
681  if (tuple.getSubminor().hasValue())
682  subminor = tuple.getSubminor().getValue();
683 
684  Builder.defineMacro("__OBJFW_RUNTIME_ABI__",
685  Twine(tuple.getMajor() * 10000 + minor * 100 +
686  subminor));
687  }
688 
689  Builder.defineMacro("IBOutlet", "__attribute__((iboutlet))");
690  Builder.defineMacro("IBOutletCollection(ClassName)",
691  "__attribute__((iboutletcollection(ClassName)))");
692  Builder.defineMacro("IBAction", "void)__attribute__((ibaction)");
693  Builder.defineMacro("IBInspectable", "");
694  Builder.defineMacro("IB_DESIGNABLE", "");
695  }
696 
697  // Define a macro that describes the Objective-C boolean type even for C
698  // and C++ since BOOL can be used from non Objective-C code.
699  Builder.defineMacro("__OBJC_BOOL_IS_BOOL",
700  Twine(TI.useSignedCharForObjCBool() ? "0" : "1"));
701 
702  if (LangOpts.CPlusPlus)
703  InitializeCPlusPlusFeatureTestMacros(LangOpts, Builder);
704 
705  // darwin_constant_cfstrings controls this. This is also dependent
706  // on other things like the runtime I believe. This is set even for C code.
707  if (!LangOpts.NoConstantCFStrings)
708  Builder.defineMacro("__CONSTANT_CFSTRINGS__");
709 
710  if (LangOpts.ObjC)
711  Builder.defineMacro("OBJC_NEW_PROPERTIES");
712 
713  if (LangOpts.PascalStrings)
714  Builder.defineMacro("__PASCAL_STRINGS__");
715 
716  if (LangOpts.Blocks) {
717  Builder.defineMacro("__block", "__attribute__((__blocks__(byref)))");
718  Builder.defineMacro("__BLOCKS__");
719  }
720 
721  if (!LangOpts.MSVCCompat && LangOpts.Exceptions)
722  Builder.defineMacro("__EXCEPTIONS");
723  if (LangOpts.GNUCVersion && LangOpts.RTTI)
724  Builder.defineMacro("__GXX_RTTI");
725 
726  if (LangOpts.SjLjExceptions)
727  Builder.defineMacro("__USING_SJLJ_EXCEPTIONS__");
728  else if (LangOpts.SEHExceptions)
729  Builder.defineMacro("__SEH__");
730  else if (LangOpts.DWARFExceptions &&
731  (TI.getTriple().isThumb() || TI.getTriple().isARM()))
732  Builder.defineMacro("__ARM_DWARF_EH__");
733 
734  if (LangOpts.Deprecated)
735  Builder.defineMacro("__DEPRECATED");
736 
737  if (!LangOpts.MSVCCompat && LangOpts.CPlusPlus)
738  Builder.defineMacro("__private_extern__", "extern");
739 
740  if (LangOpts.MicrosoftExt) {
741  if (LangOpts.WChar) {
742  // wchar_t supported as a keyword.
743  Builder.defineMacro("_WCHAR_T_DEFINED");
744  Builder.defineMacro("_NATIVE_WCHAR_T_DEFINED");
745  }
746  }
747 
748  if (LangOpts.Optimize)
749  Builder.defineMacro("__OPTIMIZE__");
750  if (LangOpts.OptimizeSize)
751  Builder.defineMacro("__OPTIMIZE_SIZE__");
752 
753  if (LangOpts.FastMath)
754  Builder.defineMacro("__FAST_MATH__");
755 
756  // Initialize target-specific preprocessor defines.
757 
758  // __BYTE_ORDER__ was added in GCC 4.6. It's analogous
759  // to the macro __BYTE_ORDER (no trailing underscores)
760  // from glibc's <endian.h> header.
761  // We don't support the PDP-11 as a target, but include
762  // the define so it can still be compared against.
763  Builder.defineMacro("__ORDER_LITTLE_ENDIAN__", "1234");
764  Builder.defineMacro("__ORDER_BIG_ENDIAN__", "4321");
765  Builder.defineMacro("__ORDER_PDP_ENDIAN__", "3412");
766  if (TI.isBigEndian()) {
767  Builder.defineMacro("__BYTE_ORDER__", "__ORDER_BIG_ENDIAN__");
768  Builder.defineMacro("__BIG_ENDIAN__");
769  } else {
770  Builder.defineMacro("__BYTE_ORDER__", "__ORDER_LITTLE_ENDIAN__");
771  Builder.defineMacro("__LITTLE_ENDIAN__");
772  }
773 
774  if (TI.getPointerWidth(0) == 64 && TI.getLongWidth() == 64
775  && TI.getIntWidth() == 32) {
776  Builder.defineMacro("_LP64");
777  Builder.defineMacro("__LP64__");
778  }
779 
780  if (TI.getPointerWidth(0) == 32 && TI.getLongWidth() == 32
781  && TI.getIntWidth() == 32) {
782  Builder.defineMacro("_ILP32");
783  Builder.defineMacro("__ILP32__");
784  }
785 
786  // Define type sizing macros based on the target properties.
787  assert(TI.getCharWidth() == 8 && "Only support 8-bit char so far");
788  Builder.defineMacro("__CHAR_BIT__", Twine(TI.getCharWidth()));
789 
790  DefineTypeSize("__SCHAR_MAX__", TargetInfo::SignedChar, TI, Builder);
791  DefineTypeSize("__SHRT_MAX__", TargetInfo::SignedShort, TI, Builder);
792  DefineTypeSize("__INT_MAX__", TargetInfo::SignedInt, TI, Builder);
793  DefineTypeSize("__LONG_MAX__", TargetInfo::SignedLong, TI, Builder);
794  DefineTypeSize("__LONG_LONG_MAX__", TargetInfo::SignedLongLong, TI, Builder);
795  DefineTypeSize("__WCHAR_MAX__", TI.getWCharType(), TI, Builder);
796  DefineTypeSize("__WINT_MAX__", TI.getWIntType(), TI, Builder);
797  DefineTypeSize("__INTMAX_MAX__", TI.getIntMaxType(), TI, Builder);
798  DefineTypeSize("__SIZE_MAX__", TI.getSizeType(), TI, Builder);
799 
800  DefineTypeSize("__UINTMAX_MAX__", TI.getUIntMaxType(), TI, Builder);
801  DefineTypeSize("__PTRDIFF_MAX__", TI.getPtrDiffType(0), TI, Builder);
802  DefineTypeSize("__INTPTR_MAX__", TI.getIntPtrType(), TI, Builder);
803  DefineTypeSize("__UINTPTR_MAX__", TI.getUIntPtrType(), TI, Builder);
804 
805  DefineTypeSizeof("__SIZEOF_DOUBLE__", TI.getDoubleWidth(), TI, Builder);
806  DefineTypeSizeof("__SIZEOF_FLOAT__", TI.getFloatWidth(), TI, Builder);
807  DefineTypeSizeof("__SIZEOF_INT__", TI.getIntWidth(), TI, Builder);
808  DefineTypeSizeof("__SIZEOF_LONG__", TI.getLongWidth(), TI, Builder);
809  DefineTypeSizeof("__SIZEOF_LONG_DOUBLE__",TI.getLongDoubleWidth(),TI,Builder);
810  DefineTypeSizeof("__SIZEOF_LONG_LONG__", TI.getLongLongWidth(), TI, Builder);
811  DefineTypeSizeof("__SIZEOF_POINTER__", TI.getPointerWidth(0), TI, Builder);
812  DefineTypeSizeof("__SIZEOF_SHORT__", TI.getShortWidth(), TI, Builder);
813  DefineTypeSizeof("__SIZEOF_PTRDIFF_T__",
814  TI.getTypeWidth(TI.getPtrDiffType(0)), TI, Builder);
815  DefineTypeSizeof("__SIZEOF_SIZE_T__",
816  TI.getTypeWidth(TI.getSizeType()), TI, Builder);
817  DefineTypeSizeof("__SIZEOF_WCHAR_T__",
818  TI.getTypeWidth(TI.getWCharType()), TI, Builder);
819  DefineTypeSizeof("__SIZEOF_WINT_T__",
820  TI.getTypeWidth(TI.getWIntType()), TI, Builder);
821  if (TI.hasInt128Type())
822  DefineTypeSizeof("__SIZEOF_INT128__", 128, TI, Builder);
823 
824  DefineType("__INTMAX_TYPE__", TI.getIntMaxType(), Builder);
825  DefineFmt("__INTMAX", TI.getIntMaxType(), TI, Builder);
826  Builder.defineMacro("__INTMAX_C_SUFFIX__",
828  DefineType("__UINTMAX_TYPE__", TI.getUIntMaxType(), Builder);
829  DefineFmt("__UINTMAX", TI.getUIntMaxType(), TI, Builder);
830  Builder.defineMacro("__UINTMAX_C_SUFFIX__",
832  DefineTypeWidth("__INTMAX_WIDTH__", TI.getIntMaxType(), TI, Builder);
833  DefineType("__PTRDIFF_TYPE__", TI.getPtrDiffType(0), Builder);
834  DefineFmt("__PTRDIFF", TI.getPtrDiffType(0), TI, Builder);
835  DefineTypeWidth("__PTRDIFF_WIDTH__", TI.getPtrDiffType(0), TI, Builder);
836  DefineType("__INTPTR_TYPE__", TI.getIntPtrType(), Builder);
837  DefineFmt("__INTPTR", TI.getIntPtrType(), TI, Builder);
838  DefineTypeWidth("__INTPTR_WIDTH__", TI.getIntPtrType(), TI, Builder);
839  DefineType("__SIZE_TYPE__", TI.getSizeType(), Builder);
840  DefineFmt("__SIZE", TI.getSizeType(), TI, Builder);
841  DefineTypeWidth("__SIZE_WIDTH__", TI.getSizeType(), TI, Builder);
842  DefineType("__WCHAR_TYPE__", TI.getWCharType(), Builder);
843  DefineTypeWidth("__WCHAR_WIDTH__", TI.getWCharType(), TI, Builder);
844  DefineType("__WINT_TYPE__", TI.getWIntType(), Builder);
845  DefineTypeWidth("__WINT_WIDTH__", TI.getWIntType(), TI, Builder);
846  DefineTypeWidth("__SIG_ATOMIC_WIDTH__", TI.getSigAtomicType(), TI, Builder);
847  DefineTypeSize("__SIG_ATOMIC_MAX__", TI.getSigAtomicType(), TI, Builder);
848  DefineType("__CHAR16_TYPE__", TI.getChar16Type(), Builder);
849  DefineType("__CHAR32_TYPE__", TI.getChar32Type(), Builder);
850 
851  DefineTypeWidth("__UINTMAX_WIDTH__", TI.getUIntMaxType(), TI, Builder);
852  DefineType("__UINTPTR_TYPE__", TI.getUIntPtrType(), Builder);
853  DefineFmt("__UINTPTR", TI.getUIntPtrType(), TI, Builder);
854  DefineTypeWidth("__UINTPTR_WIDTH__", TI.getUIntPtrType(), TI, Builder);
855 
856  if (TI.hasFloat16Type())
857  DefineFloatMacros(Builder, "FLT16", &TI.getHalfFormat(), "F16");
858  DefineFloatMacros(Builder, "FLT", &TI.getFloatFormat(), "F");
859  DefineFloatMacros(Builder, "DBL", &TI.getDoubleFormat(), "");
860  DefineFloatMacros(Builder, "LDBL", &TI.getLongDoubleFormat(), "L");
861 
862  // Define a __POINTER_WIDTH__ macro for stdint.h.
863  Builder.defineMacro("__POINTER_WIDTH__",
864  Twine((int)TI.getPointerWidth(0)));
865 
866  // Define __BIGGEST_ALIGNMENT__ to be compatible with gcc.
867  Builder.defineMacro("__BIGGEST_ALIGNMENT__",
868  Twine(TI.getSuitableAlign() / TI.getCharWidth()) );
869 
870  if (!LangOpts.CharIsSigned)
871  Builder.defineMacro("__CHAR_UNSIGNED__");
872 
874  Builder.defineMacro("__WCHAR_UNSIGNED__");
875 
877  Builder.defineMacro("__WINT_UNSIGNED__");
878 
879  // Define exact-width integer types for stdint.h
881 
882  if (TI.getShortWidth() > TI.getCharWidth())
884 
885  if (TI.getIntWidth() > TI.getShortWidth())
887 
888  if (TI.getLongWidth() > TI.getIntWidth())
890 
891  if (TI.getLongLongWidth() > TI.getLongWidth())
893 
897 
898  if (TI.getShortWidth() > TI.getCharWidth()) {
902  }
903 
904  if (TI.getIntWidth() > TI.getShortWidth()) {
908  }
909 
910  if (TI.getLongWidth() > TI.getIntWidth()) {
914  }
915 
916  if (TI.getLongLongWidth() > TI.getLongWidth()) {
920  }
921 
922  DefineLeastWidthIntType(8, true, TI, Builder);
923  DefineLeastWidthIntType(8, false, TI, Builder);
924  DefineLeastWidthIntType(16, true, TI, Builder);
925  DefineLeastWidthIntType(16, false, TI, Builder);
926  DefineLeastWidthIntType(32, true, TI, Builder);
927  DefineLeastWidthIntType(32, false, TI, Builder);
928  DefineLeastWidthIntType(64, true, TI, Builder);
929  DefineLeastWidthIntType(64, false, TI, Builder);
930 
931  DefineFastIntType(8, true, TI, Builder);
932  DefineFastIntType(8, false, TI, Builder);
933  DefineFastIntType(16, true, TI, Builder);
934  DefineFastIntType(16, false, TI, Builder);
935  DefineFastIntType(32, true, TI, Builder);
936  DefineFastIntType(32, false, TI, Builder);
937  DefineFastIntType(64, true, TI, Builder);
938  DefineFastIntType(64, false, TI, Builder);
939 
940  char UserLabelPrefix[2] = {TI.getDataLayout().getGlobalPrefix(), 0};
941  Builder.defineMacro("__USER_LABEL_PREFIX__", UserLabelPrefix);
942 
943  if (LangOpts.FastMath || LangOpts.FiniteMathOnly)
944  Builder.defineMacro("__FINITE_MATH_ONLY__", "1");
945  else
946  Builder.defineMacro("__FINITE_MATH_ONLY__", "0");
947 
948  if (LangOpts.GNUCVersion) {
949  if (LangOpts.GNUInline || LangOpts.CPlusPlus)
950  Builder.defineMacro("__GNUC_GNU_INLINE__");
951  else
952  Builder.defineMacro("__GNUC_STDC_INLINE__");
953 
954  // The value written by __atomic_test_and_set.
955  // FIXME: This is target-dependent.
956  Builder.defineMacro("__GCC_ATOMIC_TEST_AND_SET_TRUEVAL", "1");
957  }
958 
959  auto addLockFreeMacros = [&](const llvm::Twine &Prefix) {
960  // Used by libc++ and libstdc++ to implement ATOMIC_<foo>_LOCK_FREE.
961  unsigned InlineWidthBits = TI.getMaxAtomicInlineWidth();
962 #define DEFINE_LOCK_FREE_MACRO(TYPE, Type) \
963  Builder.defineMacro(Prefix + #TYPE "_LOCK_FREE", \
964  getLockFreeValue(TI.get##Type##Width(), \
965  TI.get##Type##Align(), \
966  InlineWidthBits));
968  DEFINE_LOCK_FREE_MACRO(CHAR, Char);
969  if (LangOpts.Char8)
970  DEFINE_LOCK_FREE_MACRO(CHAR8_T, Char); // Treat char8_t like char.
971  DEFINE_LOCK_FREE_MACRO(CHAR16_T, Char16);
972  DEFINE_LOCK_FREE_MACRO(CHAR32_T, Char32);
973  DEFINE_LOCK_FREE_MACRO(WCHAR_T, WChar);
974  DEFINE_LOCK_FREE_MACRO(SHORT, Short);
975  DEFINE_LOCK_FREE_MACRO(INT, Int);
976  DEFINE_LOCK_FREE_MACRO(LONG, Long);
977  DEFINE_LOCK_FREE_MACRO(LLONG, LongLong);
978  Builder.defineMacro(Prefix + "POINTER_LOCK_FREE",
980  TI.getPointerAlign(0),
981  InlineWidthBits));
982 #undef DEFINE_LOCK_FREE_MACRO
983  };
984  addLockFreeMacros("__CLANG_ATOMIC_");
985  if (LangOpts.GNUCVersion)
986  addLockFreeMacros("__GCC_ATOMIC_");
987 
988  if (LangOpts.NoInlineDefine)
989  Builder.defineMacro("__NO_INLINE__");
990 
991  if (unsigned PICLevel = LangOpts.PICLevel) {
992  Builder.defineMacro("__PIC__", Twine(PICLevel));
993  Builder.defineMacro("__pic__", Twine(PICLevel));
994  if (LangOpts.PIE) {
995  Builder.defineMacro("__PIE__", Twine(PICLevel));
996  Builder.defineMacro("__pie__", Twine(PICLevel));
997  }
998  }
999 
1000  // Macros to control C99 numerics and <float.h>
1001  Builder.defineMacro("__FLT_EVAL_METHOD__", Twine(TI.getFloatEvalMethod()));
1002  Builder.defineMacro("__FLT_RADIX__", "2");
1003  Builder.defineMacro("__DECIMAL_DIG__", "__LDBL_DECIMAL_DIG__");
1004 
1005  if (LangOpts.getStackProtector() == LangOptions::SSPOn)
1006  Builder.defineMacro("__SSP__");
1007  else if (LangOpts.getStackProtector() == LangOptions::SSPStrong)
1008  Builder.defineMacro("__SSP_STRONG__", "2");
1009  else if (LangOpts.getStackProtector() == LangOptions::SSPReq)
1010  Builder.defineMacro("__SSP_ALL__", "3");
1011 
1012  if (PPOpts.SetUpStaticAnalyzer)
1013  Builder.defineMacro("__clang_analyzer__");
1014 
1015  if (LangOpts.FastRelaxedMath)
1016  Builder.defineMacro("__FAST_RELAXED_MATH__");
1017 
1018  if (FEOpts.ProgramAction == frontend::RewriteObjC ||
1019  LangOpts.getGC() != LangOptions::NonGC) {
1020  Builder.defineMacro("__weak", "__attribute__((objc_gc(weak)))");
1021  Builder.defineMacro("__strong", "__attribute__((objc_gc(strong)))");
1022  Builder.defineMacro("__autoreleasing", "");
1023  Builder.defineMacro("__unsafe_unretained", "");
1024  } else if (LangOpts.ObjC) {
1025  Builder.defineMacro("__weak", "__attribute__((objc_ownership(weak)))");
1026  Builder.defineMacro("__strong", "__attribute__((objc_ownership(strong)))");
1027  Builder.defineMacro("__autoreleasing",
1028  "__attribute__((objc_ownership(autoreleasing)))");
1029  Builder.defineMacro("__unsafe_unretained",
1030  "__attribute__((objc_ownership(none)))");
1031  }
1032 
1033  // On Darwin, there are __double_underscored variants of the type
1034  // nullability qualifiers.
1035  if (TI.getTriple().isOSDarwin()) {
1036  Builder.defineMacro("__nonnull", "_Nonnull");
1037  Builder.defineMacro("__null_unspecified", "_Null_unspecified");
1038  Builder.defineMacro("__nullable", "_Nullable");
1039  }
1040 
1041  // Add a macro to differentiate between regular iOS/tvOS/watchOS targets and
1042  // the corresponding simulator targets.
1043  if (TI.getTriple().isOSDarwin() && TI.getTriple().isSimulatorEnvironment())
1044  Builder.defineMacro("__APPLE_EMBEDDED_SIMULATOR__", "1");
1045 
1046  // OpenMP definition
1047  // OpenMP 2.2:
1048  // In implementations that support a preprocessor, the _OPENMP
1049  // macro name is defined to have the decimal value yyyymm where
1050  // yyyy and mm are the year and the month designations of the
1051  // version of the OpenMP API that the implementation support.
1052  if (!LangOpts.OpenMPSimd) {
1053  switch (LangOpts.OpenMP) {
1054  case 0:
1055  break;
1056  case 31:
1057  Builder.defineMacro("_OPENMP", "201107");
1058  break;
1059  case 40:
1060  Builder.defineMacro("_OPENMP", "201307");
1061  break;
1062  case 50:
1063  Builder.defineMacro("_OPENMP", "201811");
1064  break;
1065  default:
1066  // Default version is OpenMP 4.5
1067  Builder.defineMacro("_OPENMP", "201511");
1068  break;
1069  }
1070  }
1071 
1072  // CUDA device path compilaton
1073  if (LangOpts.CUDAIsDevice && !LangOpts.HIP) {
1074  // The CUDA_ARCH value is set for the GPU target specified in the NVPTX
1075  // backend's target defines.
1076  Builder.defineMacro("__CUDA_ARCH__");
1077  }
1078 
1079  // We need to communicate this to our CUDA header wrapper, which in turn
1080  // informs the proper CUDA headers of this choice.
1081  if (LangOpts.CUDADeviceApproxTranscendentals || LangOpts.FastMath) {
1082  Builder.defineMacro("__CLANG_CUDA_APPROX_TRANSCENDENTALS__");
1083  }
1084 
1085  // Define a macro indicating that the source file is being compiled with a
1086  // SYCL device compiler which doesn't produce host binary.
1087  if (LangOpts.SYCLIsDevice) {
1088  Builder.defineMacro("__SYCL_DEVICE_ONLY__", "1");
1089  }
1090 
1091  // OpenCL definitions.
1092  if (LangOpts.OpenCL) {
1093 #define OPENCLEXT(Ext) \
1094  if (TI.getSupportedOpenCLOpts().isSupported(#Ext, LangOpts)) \
1095  Builder.defineMacro(#Ext);
1096 #include "clang/Basic/OpenCLExtensions.def"
1097 
1098  if (TI.getTriple().isSPIR())
1099  Builder.defineMacro("__IMAGE_SUPPORT__");
1100  }
1101 
1102  if (TI.hasInt128Type() && LangOpts.CPlusPlus && LangOpts.GNUMode) {
1103  // For each extended integer type, g++ defines a macro mapping the
1104  // index of the type (0 in this case) in some list of extended types
1105  // to the type.
1106  Builder.defineMacro("__GLIBCXX_TYPE_INT_N_0", "__int128");
1107  Builder.defineMacro("__GLIBCXX_BITSIZE_INT_N_0", "128");
1108  }
1109 
1110  // Get other target #defines.
1111  TI.getTargetDefines(LangOpts, Builder);
1112 }
1113 
1114 /// InitializePreprocessor - Initialize the preprocessor getting it and the
1115 /// environment ready to process a single file. This returns true on error.
1116 ///
1118  Preprocessor &PP, const PreprocessorOptions &InitOpts,
1119  const PCHContainerReader &PCHContainerRdr,
1120  const FrontendOptions &FEOpts) {
1121  const LangOptions &LangOpts = PP.getLangOpts();
1122  std::string PredefineBuffer;
1123  PredefineBuffer.reserve(4080);
1124  llvm::raw_string_ostream Predefines(PredefineBuffer);
1125  MacroBuilder Builder(Predefines);
1126 
1127  // Emit line markers for various builtin sections of the file. We don't do
1128  // this in asm preprocessor mode, because "# 4" is not a line marker directive
1129  // in this mode.
1130  if (!PP.getLangOpts().AsmPreprocessor)
1131  Builder.append("# 1 \"<built-in>\" 3");
1132 
1133  // Install things like __POWERPC__, __GNUC__, etc into the macro table.
1134  if (InitOpts.UsePredefines) {
1135  // FIXME: This will create multiple definitions for most of the predefined
1136  // macros. This is not the right way to handle this.
1137  if ((LangOpts.CUDA || LangOpts.OpenMPIsDevice || LangOpts.SYCLIsDevice) &&
1138  PP.getAuxTargetInfo())
1139  InitializePredefinedMacros(*PP.getAuxTargetInfo(), LangOpts, FEOpts,
1140  PP.getPreprocessorOpts(), Builder);
1141 
1142  InitializePredefinedMacros(PP.getTargetInfo(), LangOpts, FEOpts,
1143  PP.getPreprocessorOpts(), Builder);
1144 
1145  // Install definitions to make Objective-C++ ARC work well with various
1146  // C++ Standard Library implementations.
1147  if (LangOpts.ObjC && LangOpts.CPlusPlus &&
1148  (LangOpts.ObjCAutoRefCount || LangOpts.ObjCWeak)) {
1149  switch (InitOpts.ObjCXXARCStandardLibrary) {
1150  case ARCXX_nolib:
1151  case ARCXX_libcxx:
1152  break;
1153 
1154  case ARCXX_libstdcxx:
1155  AddObjCXXARCLibstdcxxDefines(LangOpts, Builder);
1156  break;
1157  }
1158  }
1159  }
1160 
1161  // Even with predefines off, some macros are still predefined.
1162  // These should all be defined in the preprocessor according to the
1163  // current language configuration.
1165  FEOpts, Builder);
1166 
1167  // Add on the predefines from the driver. Wrap in a #line directive to report
1168  // that they come from the command line.
1169  if (!PP.getLangOpts().AsmPreprocessor)
1170  Builder.append("# 1 \"<command line>\" 1");
1171 
1172  // Process #define's and #undef's in the order they are given.
1173  for (unsigned i = 0, e = InitOpts.Macros.size(); i != e; ++i) {
1174  if (InitOpts.Macros[i].second) // isUndef
1175  Builder.undefineMacro(InitOpts.Macros[i].first);
1176  else
1177  DefineBuiltinMacro(Builder, InitOpts.Macros[i].first,
1178  PP.getDiagnostics());
1179  }
1180 
1181  // Exit the command line and go back to <built-in> (2 is LC_LEAVE).
1182  if (!PP.getLangOpts().AsmPreprocessor)
1183  Builder.append("# 1 \"<built-in>\" 2");
1184 
1185  // If -imacros are specified, include them now. These are processed before
1186  // any -include directives.
1187  for (unsigned i = 0, e = InitOpts.MacroIncludes.size(); i != e; ++i)
1188  AddImplicitIncludeMacros(Builder, InitOpts.MacroIncludes[i]);
1189 
1190  // Process -include-pch/-include-pth directives.
1191  if (!InitOpts.ImplicitPCHInclude.empty())
1192  AddImplicitIncludePCH(Builder, PP, PCHContainerRdr,
1193  InitOpts.ImplicitPCHInclude);
1194 
1195  // Process -include directives.
1196  for (unsigned i = 0, e = InitOpts.Includes.size(); i != e; ++i) {
1197  const std::string &Path = InitOpts.Includes[i];
1198  AddImplicitInclude(Builder, Path);
1199  }
1200 
1201  // Instruct the preprocessor to skip the preamble.
1203  InitOpts.PrecompiledPreambleBytes.second);
1204 
1205  // Copy PredefinedBuffer into the Preprocessor.
1206  PP.setPredefines(Predefines.str());
1207 }
unsigned getTypeWidth(IntType T) const
Return the width (in bits) of the specified integer type enum.
Definition: TargetInfo.cpp:219
IntType getInt64Type() const
Definition: TargetInfo.h:304
unsigned getFloatWidth() const
getFloatWidth/Align/Format - Return the size/align/format of &#39;float&#39;.
Definition: TargetInfo.h:580
std::vector< std::pair< std::string, bool > > Macros
Defines the clang::MacroBuilder utility class.
unsigned getLongWidth() const
getLongWidth/Align - Return the size of &#39;signed long&#39; and &#39;unsigned long&#39; for this target...
Definition: TargetInfo.h:401
Defines the clang::FileManager interface and associated types.
unsigned getSuitableAlign() const
Return the alignment that is suitable for storing any object with a fundamental alignment requirement...
Definition: TargetInfo.h:538
bool isBigEndian() const
Definition: TargetInfo.h:1271
const llvm::Triple & getTriple() const
Returns the target triple of the primary target.
Definition: TargetInfo.h:994
Defines the SourceManager interface.
virtual IntType getLeastIntTypeByWidth(unsigned BitWidth, bool IsSigned) const
Return the smallest integer type with at least the specified width.
Definition: TargetInfo.cpp:250
FileManager & getFileManager() const
Definition: Preprocessor.h:910
static T PickFP(const llvm::fltSemantics *Sem, T IEEEHalfVal, T IEEESingleVal, T IEEEDoubleVal, T X87DoubleExtendedVal, T PPCDoubleDoubleVal, T IEEEQuadVal)
PickFP - This is used to pick a value based on the FP semantics of the specified FP model...
static void DefineFmt(const Twine &Prefix, TargetInfo::IntType Ty, const TargetInfo &TI, MacroBuilder &Builder)
std::vector< std::string > Includes
static void AddImplicitIncludeMacros(MacroBuilder &Builder, StringRef File)
StringRef getOriginalSourceFile()
Retrieve the name of the original source file name for the primary module file.
Definition: ASTReader.h:1662
DiagnosticBuilder Report(SourceLocation Loc, unsigned DiagID)
Issue the message to the client.
Definition: Diagnostic.h:1300
PreprocessorOptions - This class is used for passing the various options used in preprocessor initial...
unsigned getCharWidth() const
Definition: TargetInfo.h:383
const llvm::fltSemantics & getHalfFormat() const
Definition: TargetInfo.h:577
static void DefineTypeSizeof(StringRef MacroName, unsigned BitWidth, const TargetInfo &TI, MacroBuilder &Builder)
void setPredefines(const char *P)
Set the predefines for this Preprocessor.
static void AddImplicitIncludePCH(MacroBuilder &Builder, Preprocessor &PP, const PCHContainerReader &PCHContainerRdr, StringRef ImplicitIncludePCH)
Add an implicit #include using the original file used to generate a PCH file.
uint64_t getPointerWidth(unsigned AddrSpace) const
Return the width of pointers on this target, for the specified address space.
Definition: TargetInfo.h:361
#define TOSTR(X)
const char * getTypeConstantSuffix(IntType T) const
Return the constant suffix for the specified integer type enum.
Definition: TargetInfo.cpp:176
static void AddObjCXXARCLibstdcxxDefines(const LangOptions &LangOpts, MacroBuilder &Builder)
Add definitions required for a smooth interaction between Objective-C++ automated reference counting ...
IntType getChar32Type() const
Definition: TargetInfo.h:303
unsigned getNewAlign() const
Return the largest alignment for which a suitably-sized allocation with &#39;::operator new(size_t)&#39; is g...
Definition: TargetInfo.h:555
const TargetInfo & getTargetInfo() const
Definition: Preprocessor.h:908
void undefineMacro(const Twine &Name)
Append a #undef line for Name.
Definition: MacroBuilder.h:35
IntType getSizeType() const
Definition: TargetInfo.h:271
Keeps track of the various options that can be enabled, which controls the dialect of C or C++ that i...
Definition: LangOptions.h:53
const LangOptions & getLangOpts() const
Definition: Preprocessor.h:907
static bool isTypeSigned(IntType T)
Returns true if the type is signed; false otherwise.
Definition: TargetInfo.cpp:308
bool isNonFragile() const
Does this runtime follow the set of implied behaviors for a "non-fragile" ABI?
Definition: ObjCRuntime.h:81
bool isNeXTFamily() const
Is this runtime basically of the NeXT family of runtimes?
Definition: ObjCRuntime.h:134
LLVM_READONLY bool isWhitespace(unsigned char c)
Return true if this character is horizontal or vertical ASCII whitespace: &#39; &#39;, &#39;\t&#39;, &#39;\f&#39;, &#39;\v&#39;, &#39;\n&#39;, &#39;\r&#39;.
Definition: CharInfo.h:87
Concrete class used by the front-end to report problems and issues.
Definition: Diagnostic.h:149
void append(const Twine &Str)
Directly append Str and a newline to the underlying buffer.
Definition: MacroBuilder.h:40
unsigned getShortWidth() const
Return the size of &#39;signed short&#39; and &#39;unsigned short&#39; for this target, in bits.
Definition: TargetInfo.h:388
static void DefineType(const Twine &MacroName, TargetInfo::IntType Ty, MacroBuilder &Builder)
const TargetInfo * getAuxTargetInfo() const
Definition: Preprocessor.h:909
static void DefineFloatMacros(MacroBuilder &Builder, StringRef Prefix, const llvm::fltSemantics *Sem, StringRef Ext)
static void AddImplicitInclude(MacroBuilder &Builder, StringRef File)
AddImplicitInclude - Add an implicit #include of the specified file to the predefines buffer...
static void DefineExactWidthIntTypeSize(TargetInfo::IntType Ty, const TargetInfo &TI, MacroBuilder &Builder)
This abstract interface provides operations for unwrapping containers for serialized ASTs (precompile...
bool isLittleEndian() const
Definition: TargetInfo.h:1272
const llvm::fltSemantics & getDoubleFormat() const
Definition: TargetInfo.h:587
static void DefineExactWidthIntType(TargetInfo::IntType Ty, const TargetInfo &TI, MacroBuilder &Builder)
const llvm::fltSemantics & getLongDoubleFormat() const
Definition: TargetInfo.h:593
Exposes information about the current target.
Definition: TargetInfo.h:164
static void DefineLeastWidthIntType(unsigned TypeWidth, bool IsSigned, const TargetInfo &TI, MacroBuilder &Builder)
SourceLocation End
IntType getUIntPtrType() const
Definition: TargetInfo.h:297
unsigned getIntWidth() const
getIntWidth/Align - Return the size of &#39;signed int&#39; and &#39;unsigned int&#39; for this target, in bits.
Definition: TargetInfo.h:396
static void DefineTypeSize(const Twine &MacroName, unsigned TypeWidth, StringRef ValSuffix, bool isSigned, MacroBuilder &Builder)
DefineTypeSize - Emit a macro to the predefines buffer that declares a macro named MacroName with the...
Defines version macros and version-related utility functions for Clang.
Defines the clang::Preprocessor interface.
IntType getChar16Type() const
Definition: TargetInfo.h:302
clang::ObjCRuntime ObjCRuntime
Definition: LangOptions.h:257
&#39;gnustep&#39; is the modern non-fragile GNUstep runtime.
Definition: ObjCRuntime.h:55
IntType getUIntMaxType() const
Definition: TargetInfo.h:287
unsigned getDoubleWidth() const
getDoubleWidth/Align/Format - Return the size/align/format of &#39;double&#39;.
Definition: TargetInfo.h:585
static void InitializePredefinedMacros(const TargetInfo &TI, const LangOptions &LangOpts, const FrontendOptions &FEOpts, const PreprocessorOptions &PPOpts, MacroBuilder &Builder)
static const char * getTypeName(IntType T)
Return the user string for the specified integer type enum.
Definition: TargetInfo.cpp:158
static const char * getLockFreeValue(unsigned TypeWidth, unsigned TypeAlign, unsigned InlineWidth)
Get the value the ATOMIC_*_LOCK_FREE macro should have for a type with the specified properties...
static bool MacroBodyEndsInBackslash(StringRef MacroBody)
IntType getPtrDiffType(unsigned AddrSpace) const
Definition: TargetInfo.h:290
IntType getSigAtomicType() const
Definition: TargetInfo.h:308
static void DefineFastIntType(unsigned TypeWidth, bool IsSigned, const TargetInfo &TI, MacroBuilder &Builder)
static void InitializeStandardPredefinedMacros(const TargetInfo &TI, const LangOptions &LangOpts, const FrontendOptions &FEOpts, MacroBuilder &Builder)
unsigned getMaxAtomicInlineWidth() const
Return the maximum width lock-free atomic operation which can be inlined given the supported features...
Definition: TargetInfo.h:624
static void DefineBuiltinMacro(MacroBuilder &Builder, StringRef Macro, DiagnosticsEngine &Diags)
static void InitializeCPlusPlusFeatureTestMacros(const LangOptions &LangOpts, MacroBuilder &Builder)
Initialize the predefined C++ language feature test macros defined in ISO/IEC JTC1/SC22/WG21 (C++) SD...
IntType getWIntType() const
Definition: TargetInfo.h:301
std::string ImplicitPCHInclude
The implicit PCH included at the start of the translation unit, or empty.
&#39;objfw&#39; is the Objective-C runtime included in ObjFW
Definition: ObjCRuntime.h:58
unsigned getLongLongWidth() const
getLongLongWidth/Align - Return the size of &#39;signed long long&#39; and &#39;unsigned long long&#39; for this targ...
Definition: TargetInfo.h:406
Kind getKind() const
Definition: ObjCRuntime.h:76
IntType getIntMaxType() const
Definition: TargetInfo.h:286
std::string getClangFullRepositoryVersion()
Retrieves the full repository version that is an amalgamation of the information in getClangRepositor...
Definition: Version.cpp:89
llvm::APInt APInt
Definition: Integral.h:27
const llvm::DataLayout & getDataLayout() const
Definition: TargetInfo.h:998
virtual unsigned getFloatEvalMethod() const
Return the value for the C99 FLT_EVAL_METHOD macro.
Definition: TargetInfo.h:612
IntType getUInt64Type() const
Definition: TargetInfo.h:305
const VersionTuple & getVersion() const
Definition: ObjCRuntime.h:77
unsigned getLongDoubleWidth() const
getLongDoubleWidth/Align/Format - Return the size/align/format of &#39;long double&#39;.
Definition: TargetInfo.h:591
std::vector< std::string > MacroIncludes
IntType
===-— Target Data Type Query Methods ----------------------------—===//
Definition: TargetInfo.h:107
Dataflow Directional Tag Classes.
static const char * getTypeFormatModifier(IntType T)
Return the printf format modifier for the specified integer type enum.
Definition: TargetInfo.cpp:201
bool UsePredefines
Initialize the preprocessor with the compiler and target specific predefines.
frontend::ActionKind ProgramAction
The frontend action to perform.
virtual bool hasFloat16Type() const
Determine whether the _Float16 type is supported on this target.
Definition: TargetInfo.h:534
FrontendOptions - Options for controlling the behavior of the frontend.
#define DEFINE_LOCK_FREE_MACRO(TYPE, Type)
bool useSignedCharForObjCBool() const
Check if the Objective-C built-in boolean type should be signed char.
Definition: TargetInfo.h:686
virtual void getTargetDefines(const LangOptions &Opts, MacroBuilder &Builder) const =0
===-— Other target property query methods --------------------——===//
ObjCXXARCStandardLibraryKind ObjCXXARCStandardLibrary
The Objective-C++ ARC standard library that we should support, by providing appropriate definitions t...
std::string getClangFullCPPVersion()
Retrieves a string representing the complete clang version suitable for use in the CPP VERSION macro...
Definition: Version.cpp:133
virtual bool hasInt128Type() const
Determine whether the __int128 type is supported on this target.
Definition: TargetInfo.h:523
PreprocessorOptions & getPreprocessorOpts() const
Retrieve the preprocessor options used to initialize this preprocessor.
Definition: Preprocessor.h:902
Provides definitions for the atomic synchronization scopes.
DiagnosticsEngine & getDiagnostics() const
Definition: Preprocessor.h:904
const llvm::fltSemantics & getFloatFormat() const
Definition: TargetInfo.h:582
void InitializePreprocessor(Preprocessor &PP, const PreprocessorOptions &PPOpts, const PCHContainerReader &PCHContainerRdr, const FrontendOptions &FEOpts)
InitializePreprocessor - Initialize the preprocessor getting it and the environment ready to process ...
IntType getWCharType() const
Definition: TargetInfo.h:300
bool SetUpStaticAnalyzer
Set up preprocessor for RunAnalysis action.
__DEVICE__ int min(int __a, int __b)
uint64_t getPointerAlign(unsigned AddrSpace) const
Definition: TargetInfo.h:364
std::pair< unsigned, bool > PrecompiledPreambleBytes
If non-zero, the implicit PCH include is actually a precompiled preamble that covers this number of b...
Defines the clang::TargetInfo interface.
IntType getIntPtrType() const
Definition: TargetInfo.h:296
void defineMacro(const Twine &Name, const Twine &Value="1")
Append a #define line for macro of the form "\#define Name Value\n".
Definition: MacroBuilder.h:29
void setSkipMainFilePreamble(unsigned Bytes, bool StartOfLine)
Instruct the preprocessor to skip part of the main source file.
static void DefineTypeWidth(StringRef MacroName, TargetInfo::IntType Ty, const TargetInfo &TI, MacroBuilder &Builder)
Engages in a tight little dance with the lexer to efficiently preprocess tokens.
Definition: Preprocessor.h:128