Coverage Report

Created: 2021-01-23 06:44

/Users/buildslave/jenkins/workspace/coverage/llvm-project/clang/lib/Frontend/InitPreprocessor.cpp
Line
Count
Source (jump to first uncovered line)
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
13
#include "clang/Basic/FileManager.h"
14
#include "clang/Basic/MacroBuilder.h"
15
#include "clang/Basic/SourceManager.h"
16
#include "clang/Basic/SyncScope.h"
17
#include "clang/Basic/TargetInfo.h"
18
#include "clang/Basic/Version.h"
19
#include "clang/Frontend/FrontendDiagnostic.h"
20
#include "clang/Frontend/FrontendOptions.h"
21
#include "clang/Frontend/Utils.h"
22
#include "clang/Lex/HeaderSearch.h"
23
#include "clang/Lex/Preprocessor.h"
24
#include "clang/Lex/PreprocessorOptions.h"
25
#include "clang/Serialization/ASTReader.h"
26
#include "llvm/ADT/APFloat.h"
27
#include "llvm/IR/DataLayout.h"
28
using namespace clang;
29
30
1.19k
static bool MacroBodyEndsInBackslash(StringRef MacroBody) {
31
1.19k
  while (!MacroBody.empty() && 
isWhitespace(MacroBody.back())898
)
32
0
    MacroBody = MacroBody.drop_back();
33
1.19k
  return !MacroBody.empty() && 
MacroBody.back() == '\\'898
;
34
1.19k
}
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
312k
                               DiagnosticsEngine &Diags) {
41
312k
  std::pair<StringRef, StringRef> MacroPair = Macro.split('=');
42
312k
  StringRef MacroName = MacroPair.first;
43
312k
  StringRef MacroBody = MacroPair.second;
44
312k
  if (MacroName.size() != Macro.size()) {
45
    // Per GCC -D semantics, the macro ends at \n if it exists.
46
1.19k
    StringRef::size_type End = MacroBody.find_first_of("\n\r");
47
1.19k
    if (End != StringRef::npos)
48
3
      Diags.Report(diag::warn_fe_macro_contains_embedded_newline)
49
3
        << MacroName;
50
1.19k
    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
1.19k
    if (MacroBodyEndsInBackslash(MacroBody))
55
1
      Builder.defineMacro(MacroName, Twine(MacroBody) + "\\\n");
56
1.18k
    else
57
1.18k
      Builder.defineMacro(MacroName, MacroBody);
58
310k
  } else {
59
    // Push "macroname 1".
60
310k
    Builder.defineMacro(Macro);
61
310k
  }
62
312k
}
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
6.88k
static void AddImplicitInclude(MacroBuilder &Builder, StringRef File) {
69
6.88k
  Builder.append(Twine("#include \"") + File + "\"");
70
6.88k
}
71
72
2
static void AddImplicitIncludeMacros(MacroBuilder &Builder, StringRef File) {
73
2
  Builder.append(Twine("#__include_macros \"") + File + "\"");
74
  // Marker token to stop the __include_macros fetch loop.
75
2
  Builder.append("##"); // ##?
76
2
}
77
78
/// Add an implicit \#include using the original file used to generate
79
/// a PCH file.
80
static void AddImplicitIncludePCH(MacroBuilder &Builder, Preprocessor &PP,
81
                                  const PCHContainerReader &PCHContainerRdr,
82
3.53k
                                  StringRef ImplicitIncludePCH) {
83
3.53k
  std::string OriginalFile = ASTReader::getOriginalSourceFile(
84
3.53k
      std::string(ImplicitIncludePCH), PP.getFileManager(), PCHContainerRdr,
85
3.53k
      PP.getDiagnostics());
86
3.53k
  if (OriginalFile.empty())
87
1
    return;
88
89
3.53k
  AddImplicitInclude(Builder, OriginalFile);
90
3.53k
}
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
2.72M
                T IEEEQuadVal) {
98
2.72M
  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::IEEEhalf())
99
46.3k
    return IEEEHalfVal;
100
2.68M
  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::IEEEsingle())
101
894k
    return IEEESingleVal;
102
1.78M
  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::IEEEdouble())
103
1.00M
    return IEEEDoubleVal;
104
777k
  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::x87DoubleExtended())
105
698k
    return X87DoubleExtendedVal;
106
79.0k
  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::PPCDoubleDouble())
107
41.4k
    return PPCDoubleDoubleVal;
108
37.5k
  assert(Sem == (const llvm::fltSemantics*)&llvm::APFloat::IEEEquad());
109
37.5k
  return IEEEQuadVal;
110
37.5k
}
InitPreprocessor.cpp:char const* PickFP<char const*>(llvm::fltSemantics const*, char const*, char const*, char const*, char const*, char const*, char const*)
Line
Count
Source
97
991k
                T IEEEQuadVal) {
98
991k
  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::IEEEhalf())
99
16.8k
    return IEEEHalfVal;
100
975k
  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::IEEEsingle())
101
325k
    return IEEESingleVal;
102
649k
  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::IEEEdouble())
103
367k
    return IEEEDoubleVal;
104
282k
  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::x87DoubleExtended())
105
253k
    return X87DoubleExtendedVal;
106
28.7k
  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::PPCDoubleDouble())
107
15.0k
    return PPCDoubleDoubleVal;
108
13.6k
  assert(Sem == (const llvm::fltSemantics*)&llvm::APFloat::IEEEquad());
109
13.6k
  return IEEEQuadVal;
110
13.6k
}
InitPreprocessor.cpp:int PickFP<int>(llvm::fltSemantics const*, int, int, int, int, int, int)
Line
Count
Source
97
1.73M
                T IEEEQuadVal) {
98
1.73M
  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::IEEEhalf())
99
29.4k
    return IEEEHalfVal;
100
1.70M
  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::IEEEsingle())
101
569k
    return IEEESingleVal;
102
1.13M
  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::IEEEdouble())
103
642k
    return IEEEDoubleVal;
104
494k
  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::x87DoubleExtended())
105
444k
    return X87DoubleExtendedVal;
106
50.2k
  if (Sem == (const llvm::fltSemantics*)&llvm::APFloat::PPCDoubleDouble())
107
26.3k
    return PPCDoubleDoubleVal;
108
23.8k
  assert(Sem == (const llvm::fltSemantics*)&llvm::APFloat::IEEEquad());
109
23.8k
  return IEEEQuadVal;
110
23.8k
}
111
112
static void DefineFloatMacros(MacroBuilder &Builder, StringRef Prefix,
113
247k
                              const llvm::fltSemantics *Sem, StringRef Ext) {
114
247k
  const char *DenormMin, *Epsilon, *Max, *Min;
115
247k
  DenormMin = PickFP(Sem, "5.9604644775390625e-8", "1.40129846e-45",
116
247k
                     "4.9406564584124654e-324", "3.64519953188247460253e-4951",
117
247k
                     "4.94065645841246544176568792868221e-324",
118
247k
                     "6.47517511943802511092443895822764655e-4966");
119
247k
  int Digits = PickFP(Sem, 3, 6, 15, 18, 31, 33);
120
247k
  int DecimalDigits = PickFP(Sem, 5, 9, 17, 21, 33, 36);
121
247k
  Epsilon = PickFP(Sem, "9.765625e-4", "1.19209290e-7",
122
247k
                   "2.2204460492503131e-16", "1.08420217248550443401e-19",
123
247k
                   "4.94065645841246544176568792868221e-324",
124
247k
                   "1.92592994438723585305597794258492732e-34");
125
247k
  int MantissaDigits = PickFP(Sem, 11, 24, 53, 64, 106, 113);
126
247k
  int Min10Exp = PickFP(Sem, -4, -37, -307, -4931, -291, -4931);
127
247k
  int Max10Exp = PickFP(Sem, 4, 38, 308, 4932, 308, 4932);
128
247k
  int MinExp = PickFP(Sem, -13, -125, -1021, -16381, -968, -16381);
129
247k
  int MaxExp = PickFP(Sem, 16, 128, 1024, 16384, 1024, 16384);
130
247k
  Min = PickFP(Sem, "6.103515625e-5", "1.17549435e-38", "2.2250738585072014e-308",
131
247k
               "3.36210314311209350626e-4932",
132
247k
               "2.00416836000897277799610805135016e-292",
133
247k
               "3.36210314311209350626267781732175260e-4932");
134
247k
  Max = PickFP(Sem, "6.5504e+4", "3.40282347e+38", "1.7976931348623157e+308",
135
247k
               "1.18973149535723176502e+4932",
136
247k
               "1.79769313486231580793728971405301e+308",
137
247k
               "1.18973149535723176508575932662800702e+4932");
138
139
247k
  SmallString<32> DefPrefix;
140
247k
  DefPrefix = "__";
141
247k
  DefPrefix += Prefix;
142
247k
  DefPrefix += "_";
143
144
247k
  Builder.defineMacro(DefPrefix + "DENORM_MIN__", Twine(DenormMin)+Ext);
145
247k
  Builder.defineMacro(DefPrefix + "HAS_DENORM__");
146
247k
  Builder.defineMacro(DefPrefix + "DIG__", Twine(Digits));
147
247k
  Builder.defineMacro(DefPrefix + "DECIMAL_DIG__", Twine(DecimalDigits));
148
247k
  Builder.defineMacro(DefPrefix + "EPSILON__", Twine(Epsilon)+Ext);
149
247k
  Builder.defineMacro(DefPrefix + "HAS_INFINITY__");
150
247k
  Builder.defineMacro(DefPrefix + "HAS_QUIET_NAN__");
151
247k
  Builder.defineMacro(DefPrefix + "MANT_DIG__", Twine(MantissaDigits));
152
153
247k
  Builder.defineMacro(DefPrefix + "MAX_10_EXP__", Twine(Max10Exp));
154
247k
  Builder.defineMacro(DefPrefix + "MAX_EXP__", Twine(MaxExp));
155
247k
  Builder.defineMacro(DefPrefix + "MAX__", Twine(Max)+Ext);
156
157
247k
  Builder.defineMacro(DefPrefix + "MIN_10_EXP__","("+Twine(Min10Exp)+")");
158
247k
  Builder.defineMacro(DefPrefix + "MIN_EXP__", "("+Twine(MinExp)+")");
159
247k
  Builder.defineMacro(DefPrefix + "MIN__", Twine(Min)+Ext);
160
247k
}
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
3.08M
                           MacroBuilder &Builder) {
169
1.84M
  llvm::APInt MaxVal = isSigned ? llvm::APInt::getSignedMaxValue(TypeWidth)
170
1.24M
                                : llvm::APInt::getMaxValue(TypeWidth);
171
3.08M
  Builder.defineMacro(MacroName, MaxVal.toString(10, isSigned) + ValSuffix);
172
3.08M
}
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
3.08M
                           const TargetInfo &TI, MacroBuilder &Builder) {
178
3.08M
  DefineTypeSize(MacroName, TI.getTypeWidth(Ty), TI.getTypeConstantSuffix(Ty),
179
3.08M
                 TI.isTypeSigned(Ty), Builder);
180
3.08M
}
181
182
static void DefineFmt(const Twine &Prefix, TargetInfo::IntType Ty,
183
2.43M
                      const TargetInfo &TI, MacroBuilder &Builder) {
184
2.43M
  bool IsSigned = TI.isTypeSigned(Ty);
185
2.43M
  StringRef FmtModifier = TI.getTypeFormatModifier(Ty);
186
9.75M
  for (const char *Fmt = IsSigned ? 
"di"1.21M
:
"ouxX"1.21M
; *Fmt;
++Fmt7.31M
) {
187
7.31M
    Builder.defineMacro(Prefix + "_FMT" + Twine(*Fmt) + "__",
188
7.31M
                        Twine("\"") + FmtModifier + Twine(*Fmt) + "\"");
189
7.31M
  }
190
2.43M
}
191
192
static void DefineType(const Twine &MacroName, TargetInfo::IntType Ty,
193
2.76M
                       MacroBuilder &Builder) {
194
2.76M
  Builder.defineMacro(MacroName, TargetInfo::getTypeName(Ty));
195
2.76M
}
196
197
static void DefineTypeWidth(StringRef MacroName, TargetInfo::IntType Ty,
198
731k
                            const TargetInfo &TI, MacroBuilder &Builder) {
199
731k
  Builder.defineMacro(MacroName, Twine(TI.getTypeWidth(Ty)));
200
731k
}
201
202
static void DefineTypeSizeof(StringRef MacroName, unsigned BitWidth,
203
1.04M
                             const TargetInfo &TI, MacroBuilder &Builder) {
204
1.04M
  Builder.defineMacro(MacroName,
205
1.04M
                      Twine(BitWidth / TI.getCharWidth()));
206
1.04M
}
207
208
static void DefineExactWidthIntType(TargetInfo::IntType Ty,
209
                                    const TargetInfo &TI,
210
651k
                                    MacroBuilder &Builder) {
211
651k
  int TypeWidth = TI.getTypeWidth(Ty);
212
651k
  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
651k
  if (TypeWidth == 64)
217
162k
    Ty = IsSigned ? 
TI.getInt64Type()81.2k
:
TI.getUInt64Type()81.2k
;
218
219
325k
  const char *Prefix = IsSigned ? "__INT" : 
"__UINT"325k
;
220
221
651k
  DefineType(Prefix + Twine(TypeWidth) + "_TYPE__", Ty, Builder);
222
651k
  DefineFmt(Prefix + Twine(TypeWidth), Ty, TI, Builder);
223
224
651k
  StringRef ConstSuffix(TI.getTypeConstantSuffix(Ty));
225
651k
  Builder.defineMacro(Prefix + Twine(TypeWidth) + "_C_SUFFIX__", ConstSuffix);
226
651k
}
227
228
static void DefineExactWidthIntTypeSize(TargetInfo::IntType Ty,
229
                                        const TargetInfo &TI,
230
651k
                                        MacroBuilder &Builder) {
231
651k
  int TypeWidth = TI.getTypeWidth(Ty);
232
651k
  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
651k
  if (TypeWidth == 64)
237
162k
    Ty = IsSigned ? 
TI.getInt64Type()81.2k
:
TI.getUInt64Type()81.2k
;
238
239
325k
  const char *Prefix = IsSigned ? "__INT" : 
"__UINT"325k
;
240
651k
  DefineTypeSize(Prefix + Twine(TypeWidth) + "_MAX__", Ty, TI, Builder);
241
651k
}
242
243
static void DefineLeastWidthIntType(unsigned TypeWidth, bool IsSigned,
244
                                    const TargetInfo &TI,
245
650k
                                    MacroBuilder &Builder) {
246
650k
  TargetInfo::IntType Ty = TI.getLeastIntTypeByWidth(TypeWidth, IsSigned);
247
650k
  if (Ty == TargetInfo::NoInt)
248
12
    return;
249
250
650k
  const char *Prefix = IsSigned ? 
"__INT_LEAST"325k
:
"__UINT_LEAST"325k
;
251
650k
  DefineType(Prefix + Twine(TypeWidth) + "_TYPE__", Ty, Builder);
252
650k
  DefineTypeSize(Prefix + Twine(TypeWidth) + "_MAX__", Ty, TI, Builder);
253
650k
  DefineFmt(Prefix + Twine(TypeWidth), Ty, TI, Builder);
254
650k
}
255
256
static void DefineFastIntType(unsigned TypeWidth, bool IsSigned,
257
650k
                              const TargetInfo &TI, MacroBuilder &Builder) {
258
  // stdint.h currently defines the fast int types as equivalent to the least
259
  // types.
260
650k
  TargetInfo::IntType Ty = TI.getLeastIntTypeByWidth(TypeWidth, IsSigned);
261
650k
  if (Ty == TargetInfo::NoInt)
262
12
    return;
263
264
650k
  const char *Prefix = IsSigned ? 
"__INT_FAST"325k
:
"__UINT_FAST"325k
;
265
650k
  DefineType(Prefix + Twine(TypeWidth) + "_TYPE__", Ty, Builder);
266
650k
  DefineTypeSize(Prefix + Twine(TypeWidth) + "_MAX__", Ty, TI, Builder);
267
268
650k
  DefineFmt(Prefix + Twine(TypeWidth), Ty, TI, Builder);
269
650k
}
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
1.07M
                                    unsigned InlineWidth) {
276
  // Fully-aligned, power-of-2 sizes no larger than the inline
277
  // width will be inlined as lock-free operations.
278
1.07M
  if (TypeWidth == TypeAlign && 
(TypeWidth & (TypeWidth - 1)) == 01.05M
&&
279
1.05M
      TypeWidth <= InlineWidth)
280
1.04M
    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
34.1k
  return "1"; // "sometimes lock free"
284
34.1k
}
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
8
                                         MacroBuilder &Builder) {
290
8
  Builder.defineMacro("_GLIBCXX_PREDEFINED_OBJC_ARC_IS_SCALAR");
291
292
8
  std::string Result;
293
8
  {
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
8
    llvm::raw_string_ostream Out(Result);
300
301
8
    Out << "namespace std {\n"
302
8
        << "\n"
303
8
        << "struct __true_type;\n"
304
8
        << "struct __false_type;\n"
305
8
        << "\n";
306
307
8
    Out << "template<typename _Tp> struct __is_scalar;\n"
308
8
        << "\n";
309
310
8
    if (LangOpts.ObjCAutoRefCount) {
311
8
      Out << "template<typename _Tp>\n"
312
8
          << "struct __is_scalar<__attribute__((objc_ownership(strong))) _Tp> {\n"
313
8
          << "  enum { __value = 0 };\n"
314
8
          << "  typedef __false_type __type;\n"
315
8
          << "};\n"
316
8
          << "\n";
317
8
    }
318
319
8
    if (LangOpts.ObjCWeak) {
320
1
      Out << "template<typename _Tp>\n"
321
1
          << "struct __is_scalar<__attribute__((objc_ownership(weak))) _Tp> {\n"
322
1
          << "  enum { __value = 0 };\n"
323
1
          << "  typedef __false_type __type;\n"
324
1
          << "};\n"
325
1
          << "\n";
326
1
    }
327
328
8
    if (LangOpts.ObjCAutoRefCount) {
329
8
      Out << "template<typename _Tp>\n"
330
8
          << "struct __is_scalar<__attribute__((objc_ownership(autoreleasing)))"
331
8
          << " _Tp> {\n"
332
8
          << "  enum { __value = 0 };\n"
333
8
          << "  typedef __false_type __type;\n"
334
8
          << "};\n"
335
8
          << "\n";
336
8
    }
337
338
8
    Out << "}\n";
339
8
  }
340
8
  Builder.append(Result);
341
8
}
342
343
static void InitializeStandardPredefinedMacros(const TargetInfo &TI,
344
                                               const LangOptions &LangOpts,
345
                                               const FrontendOptions &FEOpts,
346
81.1k
                                               MacroBuilder &Builder) {
347
  // C++ [cpp.predefined]p1:
348
  //   The following macro names shall be defined by the implementation:
349
350
  //   -- __STDC__
351
  //      [C++] Whether __STDC__ is predefined and if so, what its value is,
352
  //      are implementation-defined.
353
  // (Removed in C++20.)
354
81.1k
  if (!LangOpts.MSVCCompat && 
!LangOpts.TraditionalCPP71.3k
)
355
71.3k
    Builder.defineMacro("__STDC__");
356
  //   -- __STDC_HOSTED__
357
  //      The integer literal 1 if the implementation is a hosted
358
  //      implementation or the integer literal 0 if it is not.
359
81.1k
  if (LangOpts.Freestanding)
360
778
    Builder.defineMacro("__STDC_HOSTED__", "0");
361
80.3k
  else
362
80.3k
    Builder.defineMacro("__STDC_HOSTED__");
363
364
  //   -- __STDC_VERSION__
365
  //      [C++] Whether __STDC_VERSION__ is predefined and if so, what its
366
  //      value is, are implementation-defined.
367
  // (Removed in C++20.)
368
81.1k
  if (!LangOpts.CPlusPlus) {
369
19.6k
    if (LangOpts.C17)
370
11.2k
      Builder.defineMacro("__STDC_VERSION__", "201710L");
371
8.40k
    else if (LangOpts.C11)
372
5.47k
      Builder.defineMacro("__STDC_VERSION__", "201112L");
373
2.93k
    else if (LangOpts.C99)
374
2.01k
      Builder.defineMacro("__STDC_VERSION__", "199901L");
375
916
    else if (!LangOpts.GNUMode && 
LangOpts.Digraphs863
)
376
5
      Builder.defineMacro("__STDC_VERSION__", "199409L");
377
61.4k
  } else {
378
    //   -- __cplusplus
379
    // FIXME: Use correct value for C++23.
380
61.4k
    if (LangOpts.CPlusPlus2b)
381
6
      Builder.defineMacro("__cplusplus", "202101L");
382
    //      [C++20] The integer literal 202002L.
383
61.4k
    else if (LangOpts.CPlusPlus20)
384
3.23k
      Builder.defineMacro("__cplusplus", "202002L");
385
    //      [C++17] The integer literal 201703L.
386
58.2k
    else if (LangOpts.CPlusPlus17)
387
3.54k
      Builder.defineMacro("__cplusplus", "201703L");
388
    //      [C++14] The name __cplusplus is defined to the value 201402L when
389
    //      compiling a C++ translation unit.
390
54.7k
    else if (LangOpts.CPlusPlus14)
391
18.4k
      Builder.defineMacro("__cplusplus", "201402L");
392
    //      [C++11] The name __cplusplus is defined to the value 201103L when
393
    //      compiling a C++ translation unit.
394
36.2k
    else if (LangOpts.CPlusPlus11)
395
27.7k
      Builder.defineMacro("__cplusplus", "201103L");
396
    //      [C++03] The name __cplusplus is defined to the value 199711L when
397
    //      compiling a C++ translation unit.
398
8.41k
    else
399
8.41k
      Builder.defineMacro("__cplusplus", "199711L");
400
401
    //   -- __STDCPP_DEFAULT_NEW_ALIGNMENT__
402
    //      [C++17] An integer literal of type std::size_t whose value is the
403
    //      alignment guaranteed by a call to operator new(std::size_t)
404
    //
405
    // We provide this in all language modes, since it seems generally useful.
406
61.4k
    Builder.defineMacro("__STDCPP_DEFAULT_NEW_ALIGNMENT__",
407
61.4k
                        Twine(TI.getNewAlign() / TI.getCharWidth()) +
408
61.4k
                            TI.getTypeConstantSuffix(TI.getSizeType()));
409
410
    //   -- __STDCPP_­THREADS__
411
    //      Defined, and has the value integer literal 1, if and only if a
412
    //      program can have more than one thread of execution.
413
61.4k
    if (LangOpts.getThreadModel() == LangOptions::ThreadModelKind::POSIX)
414
61.4k
      Builder.defineMacro("__STDCPP_THREADS__", "1");
415
61.4k
  }
416
417
  // In C11 these are environment macros. In C++11 they are only defined
418
  // as part of <cuchar>. To prevent breakage when mixing C and C++
419
  // code, define these macros unconditionally. We can define them
420
  // unconditionally, as Clang always uses UTF-16 and UTF-32 for 16-bit
421
  // and 32-bit character literals.
422
81.1k
  Builder.defineMacro("__STDC_UTF_16__", "1");
423
81.1k
  Builder.defineMacro("__STDC_UTF_32__", "1");
424
425
81.1k
  if (LangOpts.ObjC)
426
19.8k
    Builder.defineMacro("__OBJC__");
427
428
  // OpenCL v1.0/1.1 s6.9, v1.2/2.0 s6.10: Preprocessor Directives and Macros.
429
81.1k
  if (LangOpts.OpenCL) {
430
691
    if (LangOpts.CPlusPlus) {
431
77
      if (LangOpts.OpenCLCPlusPlusVersion == 100)
432
77
        Builder.defineMacro("__OPENCL_CPP_VERSION__", "100");
433
77
      else
434
0
        llvm_unreachable("Unsupported C++ version for OpenCL");
435
77
      Builder.defineMacro("__CL_CPP_VERSION_1_0__", "100");
436
614
    } else {
437
      // OpenCL v1.0 and v1.1 do not have a predefined macro to indicate the
438
      // language standard with which the program is compiled. __OPENCL_VERSION__
439
      // is for the OpenCL version supported by the OpenCL device, which is not
440
      // necessarily the language standard with which the program is compiled.
441
      // A shared OpenCL header file requires a macro to indicate the language
442
      // standard. As a workaround, __OPENCL_C_VERSION__ is defined for
443
      // OpenCL v1.0 and v1.1.
444
614
      switch (LangOpts.OpenCLVersion) {
445
355
      case 100:
446
355
        Builder.defineMacro("__OPENCL_C_VERSION__", "100");
447
355
        break;
448
25
      case 110:
449
25
        Builder.defineMacro("__OPENCL_C_VERSION__", "110");
450
25
        break;
451
66
      case 120:
452
66
        Builder.defineMacro("__OPENCL_C_VERSION__", "120");
453
66
        break;
454
165
      case 200:
455
165
        Builder.defineMacro("__OPENCL_C_VERSION__", "200");
456
165
        break;
457
3
      case 300:
458
3
        Builder.defineMacro("__OPENCL_C_VERSION__", "300");
459
3
        break;
460
0
      default:
461
0
        llvm_unreachable("Unsupported OpenCL version");
462
691
      }
463
691
    }
464
691
    Builder.defineMacro("CL_VERSION_1_0", "100");
465
691
    Builder.defineMacro("CL_VERSION_1_1", "110");
466
691
    Builder.defineMacro("CL_VERSION_1_2", "120");
467
691
    Builder.defineMacro("CL_VERSION_2_0", "200");
468
691
    Builder.defineMacro("CL_VERSION_3_0", "300");
469
470
691
    if (TI.isLittleEndian())
471
691
      Builder.defineMacro("__ENDIAN_LITTLE__");
472
473
691
    if (LangOpts.FastRelaxedMath)
474
3
      Builder.defineMacro("__FAST_RELAXED_MATH__");
475
691
  }
476
477
81.1k
  if (LangOpts.SYCL) {
478
    // SYCL Version is set to a value when building SYCL applications
479
10
    if (LangOpts.getSYCLVersion() == LangOptions::SYCL_2017)
480
2
      Builder.defineMacro("CL_SYCL_LANGUAGE_VERSION", "121");
481
10
  }
482
483
  // Not "standard" per se, but available even with the -undef flag.
484
81.1k
  if (LangOpts.AsmPreprocessor)
485
40
    Builder.defineMacro("__ASSEMBLER__");
486
81.1k
  if (LangOpts.CUDA && 
!LangOpts.HIP379
)
487
291
    Builder.defineMacro("__CUDA__");
488
81.1k
  if (LangOpts.HIP) {
489
88
    Builder.defineMacro("__HIP__");
490
88
    Builder.defineMacro("__HIPCC__");
491
88
    if (LangOpts.CUDAIsDevice)
492
58
      Builder.defineMacro("__HIP_DEVICE_COMPILE__");
493
88
  }
494
81.1k
}
495
496
/// Initialize the predefined C++ language feature test macros defined in
497
/// ISO/IEC JTC1/SC22/WG21 (C++) SD-6: "SG10 Feature Test Recommendations".
498
static void InitializeCPlusPlusFeatureTestMacros(const LangOptions &LangOpts,
499
61.6k
                                                 MacroBuilder &Builder) {
500
  // C++98 features.
501
61.6k
  if (LangOpts.RTTI)
502
61.4k
    Builder.defineMacro("__cpp_rtti", "199711L");
503
61.6k
  if (LangOpts.CXXExceptions)
504
28.2k
    Builder.defineMacro("__cpp_exceptions", "199711L");
505
506
  // C++11 features.
507
61.6k
  if (LangOpts.CPlusPlus11) {
508
53.1k
    Builder.defineMacro("__cpp_unicode_characters", "200704L");
509
53.1k
    Builder.defineMacro("__cpp_raw_strings", "200710L");
510
53.1k
    Builder.defineMacro("__cpp_unicode_literals", "200710L");
511
53.1k
    Builder.defineMacro("__cpp_user_defined_literals", "200809L");
512
53.1k
    Builder.defineMacro("__cpp_lambdas", "200907L");
513
53.1k
    Builder.defineMacro("__cpp_constexpr",
514
3.23k
                        LangOpts.CPlusPlus20 ? "201907L" :
515
49.9k
                        LangOpts.CPlusPlus17 ? 
"201603L"3.54k
:
516
46.3k
                        LangOpts.CPlusPlus14 ? 
"201304L"18.5k
:
"200704"27.8k
);
517
53.1k
    Builder.defineMacro("__cpp_constexpr_in_decltype", "201711L");
518
53.1k
    Builder.defineMacro("__cpp_range_based_for",
519
46.3k
                        LangOpts.CPlusPlus17 ? 
"201603L"6.77k
: "200907");
520
53.1k
    Builder.defineMacro("__cpp_static_assert",
521
46.3k
                        LangOpts.CPlusPlus17 ? 
"201411L"6.77k
: "200410");
522
53.1k
    Builder.defineMacro("__cpp_decltype", "200707L");
523
53.1k
    Builder.defineMacro("__cpp_attributes", "200809L");
524
53.1k
    Builder.defineMacro("__cpp_rvalue_references", "200610L");
525
53.1k
    Builder.defineMacro("__cpp_variadic_templates", "200704L");
526
53.1k
    Builder.defineMacro("__cpp_initializer_lists", "200806L");
527
53.1k
    Builder.defineMacro("__cpp_delegating_constructors", "200604L");
528
53.1k
    Builder.defineMacro("__cpp_nsdmi", "200809L");
529
53.1k
    Builder.defineMacro("__cpp_inheriting_constructors", "201511L");
530
53.1k
    Builder.defineMacro("__cpp_ref_qualifiers", "200710L");
531
53.1k
    Builder.defineMacro("__cpp_alias_templates", "200704L");
532
53.1k
  }
533
61.6k
  if (LangOpts.ThreadsafeStatics)
534
48.1k
    Builder.defineMacro("__cpp_threadsafe_static_init", "200806L");
535
536
  // C++14 features.
537
61.6k
  if (LangOpts.CPlusPlus14) {
538
25.3k
    Builder.defineMacro("__cpp_binary_literals", "201304L");
539
25.3k
    Builder.defineMacro("__cpp_digit_separators", "201309L");
540
25.3k
    Builder.defineMacro("__cpp_init_captures",
541
22.0k
                        LangOpts.CPlusPlus20 ? 
"201803L"3.23k
: "201304L");
542
25.3k
    Builder.defineMacro("__cpp_generic_lambdas",
543
22.0k
                        LangOpts.CPlusPlus20 ? 
"201707L"3.23k
: "201304L");
544
25.3k
    Builder.defineMacro("__cpp_decltype_auto", "201304L");
545
25.3k
    Builder.defineMacro("__cpp_return_type_deduction", "201304L");
546
25.3k
    Builder.defineMacro("__cpp_aggregate_nsdmi", "201304L");
547
25.3k
    Builder.defineMacro("__cpp_variable_templates", "201304L");
548
25.3k
  }
549
61.6k
  if (LangOpts.SizedDeallocation)
550
39
    Builder.defineMacro("__cpp_sized_deallocation", "201309L");
551
552
  // C++17 features.
553
61.6k
  if (LangOpts.CPlusPlus17) {
554
6.77k
    Builder.defineMacro("__cpp_hex_float", "201603L");
555
6.77k
    Builder.defineMacro("__cpp_inline_variables", "201606L");
556
6.77k
    Builder.defineMacro("__cpp_noexcept_function_type", "201510L");
557
6.77k
    Builder.defineMacro("__cpp_capture_star_this", "201603L");
558
6.77k
    Builder.defineMacro("__cpp_if_constexpr", "201606L");
559
6.77k
    Builder.defineMacro("__cpp_deduction_guides", "201703L"); // (not latest)
560
6.77k
    Builder.defineMacro("__cpp_template_auto", "201606L"); // (old name)
561
6.77k
    Builder.defineMacro("__cpp_namespace_attributes", "201411L");
562
6.77k
    Builder.defineMacro("__cpp_enumerator_attributes", "201411L");
563
6.77k
    Builder.defineMacro("__cpp_nested_namespace_definitions", "201411L");
564
6.77k
    Builder.defineMacro("__cpp_variadic_using", "201611L");
565
6.77k
    Builder.defineMacro("__cpp_aggregate_bases", "201603L");
566
6.77k
    Builder.defineMacro("__cpp_structured_bindings", "201606L");
567
6.77k
    Builder.defineMacro("__cpp_nontype_template_args",
568
3.54k
                        LangOpts.CPlusPlus20 ? 
"201911L"3.23k
: "201411L");
569
6.77k
    Builder.defineMacro("__cpp_fold_expressions", "201603L");
570
6.77k
    Builder.defineMacro("__cpp_guaranteed_copy_elision", "201606L");
571
6.77k
    Builder.defineMacro("__cpp_nontype_template_parameter_auto", "201606L");
572
6.77k
  }
573
61.6k
  if (LangOpts.AlignedAllocation && 
!LangOpts.AlignedAllocationUnavailable6.78k
)
574
6.77k
    Builder.defineMacro("__cpp_aligned_new", "201606L");
575
61.6k
  if (LangOpts.RelaxedTemplateTemplateArgs)
576
3
    Builder.defineMacro("__cpp_template_template_args", "201611L");
577
578
  // C++20 features.
579
61.6k
  if (LangOpts.CPlusPlus20) {
580
    //Builder.defineMacro("__cpp_aggregate_paren_init", "201902L");
581
3.23k
    Builder.defineMacro("__cpp_concepts", "201907L");
582
3.23k
    Builder.defineMacro("__cpp_conditional_explicit", "201806L");
583
    //Builder.defineMacro("__cpp_consteval", "201811L");
584
3.23k
    Builder.defineMacro("__cpp_constexpr_dynamic_alloc", "201907L");
585
3.23k
    Builder.defineMacro("__cpp_constinit", "201907L");
586
    //Builder.defineMacro("__cpp_coroutines", "201902L");
587
3.23k
    Builder.defineMacro("__cpp_designated_initializers", "201707L");
588
3.23k
    Builder.defineMacro("__cpp_impl_three_way_comparison", "201907L");
589
    //Builder.defineMacro("__cpp_modules", "201907L");
590
    //Builder.defineMacro("__cpp_using_enum", "201907L");
591
3.23k
  }
592
61.6k
  if (LangOpts.Char8)
593
3.23k
    Builder.defineMacro("__cpp_char8_t", "201811L");
594
61.6k
  Builder.defineMacro("__cpp_impl_destroying_delete", "201806L");
595
596
  // TS features.
597
61.6k
  if (LangOpts.Coroutines)
598
3.29k
    Builder.defineMacro("__cpp_coroutines", "201703L");
599
61.6k
}
600
601
static void InitializePredefinedMacros(const TargetInfo &TI,
602
                                       const LangOptions &LangOpts,
603
                                       const FrontendOptions &FEOpts,
604
                                       const PreprocessorOptions &PPOpts,
605
81.2k
                                       MacroBuilder &Builder) {
606
  // Compiler version introspection macros.
607
81.2k
  Builder.defineMacro("__llvm__");  // LLVM Backend
608
81.2k
  Builder.defineMacro("__clang__"); // Clang Frontend
609
243k
#define TOSTR2(X) #X
610
243k
#define TOSTR(X) TOSTR2(X)
611
81.2k
  Builder.defineMacro("__clang_major__", TOSTR(CLANG_VERSION_MAJOR));
612
81.2k
  Builder.defineMacro("__clang_minor__", TOSTR(CLANG_VERSION_MINOR));
613
81.2k
  Builder.defineMacro("__clang_patchlevel__", TOSTR(CLANG_VERSION_PATCHLEVEL));
614
81.2k
#undef TOSTR
615
81.2k
#undef TOSTR2
616
81.2k
  Builder.defineMacro("__clang_version__",
617
81.2k
                      "\"" CLANG_VERSION_STRING " "
618
81.2k
                      + getClangFullRepositoryVersion() + "\"");
619
620
81.2k
  if (LangOpts.GNUCVersion != 0) {
621
    // Major, minor, patch, are given two decimal places each, so 4.2.1 becomes
622
    // 40201.
623
25.9k
    unsigned GNUCMajor = LangOpts.GNUCVersion / 100 / 100;
624
25.9k
    unsigned GNUCMinor = LangOpts.GNUCVersion / 100 % 100;
625
25.9k
    unsigned GNUCPatch = LangOpts.GNUCVersion % 100;
626
25.9k
    Builder.defineMacro("__GNUC__", Twine(GNUCMajor));
627
25.9k
    Builder.defineMacro("__GNUC_MINOR__", Twine(GNUCMinor));
628
25.9k
    Builder.defineMacro("__GNUC_PATCHLEVEL__", Twine(GNUCPatch));
629
25.9k
    Builder.defineMacro("__GXX_ABI_VERSION", "1002");
630
631
25.9k
    if (LangOpts.CPlusPlus) {
632
19.0k
      Builder.defineMacro("__GNUG__", Twine(GNUCMajor));
633
19.0k
      Builder.defineMacro("__GXX_WEAK__");
634
19.0k
    }
635
25.9k
  }
636
637
  // Define macros for the C11 / C++11 memory orderings
638
81.2k
  Builder.defineMacro("__ATOMIC_RELAXED", "0");
639
81.2k
  Builder.defineMacro("__ATOMIC_CONSUME", "1");
640
81.2k
  Builder.defineMacro("__ATOMIC_ACQUIRE", "2");
641
81.2k
  Builder.defineMacro("__ATOMIC_RELEASE", "3");
642
81.2k
  Builder.defineMacro("__ATOMIC_ACQ_REL", "4");
643
81.2k
  Builder.defineMacro("__ATOMIC_SEQ_CST", "5");
644
645
  // Define macros for the OpenCL memory scope.
646
  // The values should match AtomicScopeOpenCLModel::ID enum.
647
81.2k
  static_assert(
648
81.2k
      static_cast<unsigned>(AtomicScopeOpenCLModel::WorkGroup) == 1 &&
649
81.2k
          static_cast<unsigned>(AtomicScopeOpenCLModel::Device) == 2 &&
650
81.2k
          static_cast<unsigned>(AtomicScopeOpenCLModel::AllSVMDevices) == 3 &&
651
81.2k
          static_cast<unsigned>(AtomicScopeOpenCLModel::SubGroup) == 4,
652
81.2k
      "Invalid OpenCL memory scope enum definition");
653
81.2k
  Builder.defineMacro("__OPENCL_MEMORY_SCOPE_WORK_ITEM", "0");
654
81.2k
  Builder.defineMacro("__OPENCL_MEMORY_SCOPE_WORK_GROUP", "1");
655
81.2k
  Builder.defineMacro("__OPENCL_MEMORY_SCOPE_DEVICE", "2");
656
81.2k
  Builder.defineMacro("__OPENCL_MEMORY_SCOPE_ALL_SVM_DEVICES", "3");
657
81.2k
  Builder.defineMacro("__OPENCL_MEMORY_SCOPE_SUB_GROUP", "4");
658
659
  // Support for #pragma redefine_extname (Sun compatibility)
660
81.2k
  Builder.defineMacro("__PRAGMA_REDEFINE_EXTNAME", "1");
661
662
  // Previously this macro was set to a string aiming to achieve compatibility
663
  // with GCC 4.2.1. Now, just return the full Clang version
664
81.2k
  Builder.defineMacro("__VERSION__", "\"" +
665
81.2k
                      Twine(getClangFullCPPVersion()) + "\"");
666
667
  // Initialize language-specific preprocessor defines.
668
669
  // Standard conforming mode?
670
81.2k
  if (!LangOpts.GNUMode && 
!LangOpts.MSVCCompat36.4k
)
671
26.8k
    Builder.defineMacro("__STRICT_ANSI__");
672
673
81.2k
  if (LangOpts.GNUCVersion && 
LangOpts.CPlusPlus1125.9k
)
674
15.1k
    Builder.defineMacro("__GXX_EXPERIMENTAL_CXX0X__");
675
676
81.2k
  if (LangOpts.ObjC) {
677
19.8k
    if (LangOpts.ObjCRuntime.isNonFragile()) {
678
19.4k
      Builder.defineMacro("__OBJC2__");
679
680
19.4k
      if (LangOpts.ObjCExceptions)
681
4.23k
        Builder.defineMacro("OBJC_ZEROCOST_EXCEPTIONS");
682
19.4k
    }
683
684
19.8k
    if (LangOpts.getGC() != LangOptions::NonGC)
685
92
      Builder.defineMacro("__OBJC_GC__");
686
687
19.8k
    if (LangOpts.ObjCRuntime.isNeXTFamily())
688
18.9k
      Builder.defineMacro("__NEXT_RUNTIME__");
689
690
19.8k
    if (LangOpts.ObjCRuntime.getKind() == ObjCRuntime::GNUstep) {
691
797
      auto version = LangOpts.ObjCRuntime.getVersion();
692
797
      std::string versionString = "1";
693
      // Don't rely on the tuple argument, because we can be asked to target
694
      // later ABIs than we actually support, so clamp these values to those
695
      // currently supported
696
797
      if (version >= VersionTuple(2, 0))
697
13
        Builder.defineMacro("__OBJC_GNUSTEP_RUNTIME_ABI__", "20");
698
784
      else
699
784
        Builder.defineMacro("__OBJC_GNUSTEP_RUNTIME_ABI__",
700
784
            "1" + Twine(std::min(8U, version.getMinor().getValueOr(0))));
701
797
    }
702
703
19.8k
    if (LangOpts.ObjCRuntime.getKind() == ObjCRuntime::ObjFW) {
704
21
      VersionTuple tuple = LangOpts.ObjCRuntime.getVersion();
705
706
21
      unsigned minor = 0;
707
21
      if (tuple.getMinor().hasValue())
708
21
        minor = tuple.getMinor().getValue();
709
710
21
      unsigned subminor = 0;
711
21
      if (tuple.getSubminor().hasValue())
712
0
        subminor = tuple.getSubminor().getValue();
713
714
21
      Builder.defineMacro("__OBJFW_RUNTIME_ABI__",
715
21
                          Twine(tuple.getMajor() * 10000 + minor * 100 +
716
21
                                subminor));
717
21
    }
718
719
19.8k
    Builder.defineMacro("IBOutlet", "__attribute__((iboutlet))");
720
19.8k
    Builder.defineMacro("IBOutletCollection(ClassName)",
721
19.8k
                        "__attribute__((iboutletcollection(ClassName)))");
722
19.8k
    Builder.defineMacro("IBAction", "void)__attribute__((ibaction)");
723
19.8k
    Builder.defineMacro("IBInspectable", "");
724
19.8k
    Builder.defineMacro("IB_DESIGNABLE", "");
725
19.8k
  }
726
727
  // Define a macro that describes the Objective-C boolean type even for C
728
  // and C++ since BOOL can be used from non Objective-C code.
729
81.2k
  Builder.defineMacro("__OBJC_BOOL_IS_BOOL",
730
80.8k
                      Twine(TI.useSignedCharForObjCBool() ? "0" : 
"1"418
));
731
732
81.2k
  if (LangOpts.CPlusPlus)
733
61.6k
    InitializeCPlusPlusFeatureTestMacros(LangOpts, Builder);
734
735
  // darwin_constant_cfstrings controls this. This is also dependent
736
  // on other things like the runtime I believe.  This is set even for C code.
737
81.2k
  if (!LangOpts.NoConstantCFStrings)
738
81.2k
      Builder.defineMacro("__CONSTANT_CFSTRINGS__");
739
740
81.2k
  if (LangOpts.ObjC)
741
19.8k
    Builder.defineMacro("OBJC_NEW_PROPERTIES");
742
743
81.2k
  if (LangOpts.PascalStrings)
744
8
    Builder.defineMacro("__PASCAL_STRINGS__");
745
746
81.2k
  if (LangOpts.Blocks) {
747
31.2k
    Builder.defineMacro("__block", "__attribute__((__blocks__(byref)))");
748
31.2k
    Builder.defineMacro("__BLOCKS__");
749
31.2k
  }
750
751
81.2k
  if (!LangOpts.MSVCCompat && 
LangOpts.Exceptions71.4k
)
752
22.8k
    Builder.defineMacro("__EXCEPTIONS");
753
81.2k
  if (LangOpts.GNUCVersion && 
LangOpts.RTTI25.9k
)
754
19.0k
    Builder.defineMacro("__GXX_RTTI");
755
756
81.2k
  if (LangOpts.hasSjLjExceptions())
757
34
    Builder.defineMacro("__USING_SJLJ_EXCEPTIONS__");
758
81.2k
  else if (LangOpts.hasSEHExceptions())
759
24
    Builder.defineMacro("__SEH__");
760
81.1k
  else if (LangOpts.hasDWARFExceptions() &&
761
32
           (TI.getTriple().isThumb() || 
TI.getTriple().isARM()25
))
762
12
    Builder.defineMacro("__ARM_DWARF_EH__");
763
764
81.2k
  if (LangOpts.Deprecated)
765
26.8k
    Builder.defineMacro("__DEPRECATED");
766
767
81.2k
  if (!LangOpts.MSVCCompat && 
LangOpts.CPlusPlus71.4k
)
768
52.8k
    Builder.defineMacro("__private_extern__", "extern");
769
770
81.2k
  if (LangOpts.MicrosoftExt) {
771
10.4k
    if (LangOpts.WChar) {
772
      // wchar_t supported as a keyword.
773
9.18k
      Builder.defineMacro("_WCHAR_T_DEFINED");
774
9.18k
      Builder.defineMacro("_NATIVE_WCHAR_T_DEFINED");
775
9.18k
    }
776
10.4k
  }
777
778
81.2k
  if (LangOpts.Optimize)
779
2.72k
    Builder.defineMacro("__OPTIMIZE__");
780
81.2k
  if (LangOpts.OptimizeSize)
781
84
    Builder.defineMacro("__OPTIMIZE_SIZE__");
782
783
81.2k
  if (LangOpts.FastMath)
784
39
    Builder.defineMacro("__FAST_MATH__");
785
786
  // Initialize target-specific preprocessor defines.
787
788
  // __BYTE_ORDER__ was added in GCC 4.6. It's analogous
789
  // to the macro __BYTE_ORDER (no trailing underscores)
790
  // from glibc's <endian.h> header.
791
  // We don't support the PDP-11 as a target, but include
792
  // the define so it can still be compared against.
793
81.2k
  Builder.defineMacro("__ORDER_LITTLE_ENDIAN__", "1234");
794
81.2k
  Builder.defineMacro("__ORDER_BIG_ENDIAN__",    "4321");
795
81.2k
  Builder.defineMacro("__ORDER_PDP_ENDIAN__",    "3412");
796
81.2k
  if (TI.isBigEndian()) {
797
802
    Builder.defineMacro("__BYTE_ORDER__", "__ORDER_BIG_ENDIAN__");
798
802
    Builder.defineMacro("__BIG_ENDIAN__");
799
80.4k
  } else {
800
80.4k
    Builder.defineMacro("__BYTE_ORDER__", "__ORDER_LITTLE_ENDIAN__");
801
80.4k
    Builder.defineMacro("__LITTLE_ENDIAN__");
802
80.4k
  }
803
804
81.2k
  if (TI.getPointerWidth(0) == 64 && 
TI.getLongWidth() == 6465.0k
805
57.3k
      && TI.getIntWidth() == 32) {
806
57.3k
    Builder.defineMacro("_LP64");
807
57.3k
    Builder.defineMacro("__LP64__");
808
57.3k
  }
809
810
81.2k
  if (TI.getPointerWidth(0) == 32 && 
TI.getLongWidth() == 3216.1k
811
15.9k
      && TI.getIntWidth() == 32) {
812
15.9k
    Builder.defineMacro("_ILP32");
813
15.9k
    Builder.defineMacro("__ILP32__");
814
15.9k
  }
815
816
  // Define type sizing macros based on the target properties.
817
81.2k
  assert(TI.getCharWidth() == 8 && "Only support 8-bit char so far");
818
81.2k
  Builder.defineMacro("__CHAR_BIT__", Twine(TI.getCharWidth()));
819
820
81.2k
  DefineTypeSize("__SCHAR_MAX__", TargetInfo::SignedChar, TI, Builder);
821
81.2k
  DefineTypeSize("__SHRT_MAX__", TargetInfo::SignedShort, TI, Builder);
822
81.2k
  DefineTypeSize("__INT_MAX__", TargetInfo::SignedInt, TI, Builder);
823
81.2k
  DefineTypeSize("__LONG_MAX__", TargetInfo::SignedLong, TI, Builder);
824
81.2k
  DefineTypeSize("__LONG_LONG_MAX__", TargetInfo::SignedLongLong, TI, Builder);
825
81.2k
  DefineTypeSize("__WCHAR_MAX__", TI.getWCharType(), TI, Builder);
826
81.2k
  DefineTypeSize("__WINT_MAX__", TI.getWIntType(), TI, Builder);
827
81.2k
  DefineTypeSize("__INTMAX_MAX__", TI.getIntMaxType(), TI, Builder);
828
81.2k
  DefineTypeSize("__SIZE_MAX__", TI.getSizeType(), TI, Builder);
829
830
81.2k
  DefineTypeSize("__UINTMAX_MAX__", TI.getUIntMaxType(), TI, Builder);
831
81.2k
  DefineTypeSize("__PTRDIFF_MAX__", TI.getPtrDiffType(0), TI, Builder);
832
81.2k
  DefineTypeSize("__INTPTR_MAX__", TI.getIntPtrType(), TI, Builder);
833
81.2k
  DefineTypeSize("__UINTPTR_MAX__", TI.getUIntPtrType(), TI, Builder);
834
835
81.2k
  DefineTypeSizeof("__SIZEOF_DOUBLE__", TI.getDoubleWidth(), TI, Builder);
836
81.2k
  DefineTypeSizeof("__SIZEOF_FLOAT__", TI.getFloatWidth(), TI, Builder);
837
81.2k
  DefineTypeSizeof("__SIZEOF_INT__", TI.getIntWidth(), TI, Builder);
838
81.2k
  DefineTypeSizeof("__SIZEOF_LONG__", TI.getLongWidth(), TI, Builder);
839
81.2k
  DefineTypeSizeof("__SIZEOF_LONG_DOUBLE__",TI.getLongDoubleWidth(),TI,Builder);
840
81.2k
  DefineTypeSizeof("__SIZEOF_LONG_LONG__", TI.getLongLongWidth(), TI, Builder);
841
81.2k
  DefineTypeSizeof("__SIZEOF_POINTER__", TI.getPointerWidth(0), TI, Builder);
842
81.2k
  DefineTypeSizeof("__SIZEOF_SHORT__", TI.getShortWidth(), TI, Builder);
843
81.2k
  DefineTypeSizeof("__SIZEOF_PTRDIFF_T__",
844
81.2k
                   TI.getTypeWidth(TI.getPtrDiffType(0)), TI, Builder);
845
81.2k
  DefineTypeSizeof("__SIZEOF_SIZE_T__",
846
81.2k
                   TI.getTypeWidth(TI.getSizeType()), TI, Builder);
847
81.2k
  DefineTypeSizeof("__SIZEOF_WCHAR_T__",
848
81.2k
                   TI.getTypeWidth(TI.getWCharType()), TI, Builder);
849
81.2k
  DefineTypeSizeof("__SIZEOF_WINT_T__",
850
81.2k
                   TI.getTypeWidth(TI.getWIntType()), TI, Builder);
851
81.2k
  if (TI.hasInt128Type())
852
65.0k
    DefineTypeSizeof("__SIZEOF_INT128__", 128, TI, Builder);
853
854
81.2k
  DefineType("__INTMAX_TYPE__", TI.getIntMaxType(), Builder);
855
81.2k
  DefineFmt("__INTMAX", TI.getIntMaxType(), TI, Builder);
856
81.2k
  Builder.defineMacro("__INTMAX_C_SUFFIX__",
857
81.2k
                      TI.getTypeConstantSuffix(TI.getIntMaxType()));
858
81.2k
  DefineType("__UINTMAX_TYPE__", TI.getUIntMaxType(), Builder);
859
81.2k
  DefineFmt("__UINTMAX", TI.getUIntMaxType(), TI, Builder);
860
81.2k
  Builder.defineMacro("__UINTMAX_C_SUFFIX__",
861
81.2k
                      TI.getTypeConstantSuffix(TI.getUIntMaxType()));
862
81.2k
  DefineTypeWidth("__INTMAX_WIDTH__",  TI.getIntMaxType(), TI, Builder);
863
81.2k
  DefineType("__PTRDIFF_TYPE__", TI.getPtrDiffType(0), Builder);
864
81.2k
  DefineFmt("__PTRDIFF", TI.getPtrDiffType(0), TI, Builder);
865
81.2k
  DefineTypeWidth("__PTRDIFF_WIDTH__", TI.getPtrDiffType(0), TI, Builder);
866
81.2k
  DefineType("__INTPTR_TYPE__", TI.getIntPtrType(), Builder);
867
81.2k
  DefineFmt("__INTPTR", TI.getIntPtrType(), TI, Builder);
868
81.2k
  DefineTypeWidth("__INTPTR_WIDTH__", TI.getIntPtrType(), TI, Builder);
869
81.2k
  DefineType("__SIZE_TYPE__", TI.getSizeType(), Builder);
870
81.2k
  DefineFmt("__SIZE", TI.getSizeType(), TI, Builder);
871
81.2k
  DefineTypeWidth("__SIZE_WIDTH__", TI.getSizeType(), TI, Builder);
872
81.2k
  DefineType("__WCHAR_TYPE__", TI.getWCharType(), Builder);
873
81.2k
  DefineTypeWidth("__WCHAR_WIDTH__", TI.getWCharType(), TI, Builder);
874
81.2k
  DefineType("__WINT_TYPE__", TI.getWIntType(), Builder);
875
81.2k
  DefineTypeWidth("__WINT_WIDTH__", TI.getWIntType(), TI, Builder);
876
81.2k
  DefineTypeWidth("__SIG_ATOMIC_WIDTH__", TI.getSigAtomicType(), TI, Builder);
877
81.2k
  DefineTypeSize("__SIG_ATOMIC_MAX__", TI.getSigAtomicType(), TI, Builder);
878
81.2k
  DefineType("__CHAR16_TYPE__", TI.getChar16Type(), Builder);
879
81.2k
  DefineType("__CHAR32_TYPE__", TI.getChar32Type(), Builder);
880
881
81.2k
  DefineTypeWidth("__UINTMAX_WIDTH__",  TI.getUIntMaxType(), TI, Builder);
882
81.2k
  DefineType("__UINTPTR_TYPE__", TI.getUIntPtrType(), Builder);
883
81.2k
  DefineFmt("__UINTPTR", TI.getUIntPtrType(), TI, Builder);
884
81.2k
  DefineTypeWidth("__UINTPTR_WIDTH__", TI.getUIntPtrType(), TI, Builder);
885
886
81.2k
  if (TI.hasFloat16Type())
887
4.21k
    DefineFloatMacros(Builder, "FLT16", &TI.getHalfFormat(), "F16");
888
81.2k
  DefineFloatMacros(Builder, "FLT", &TI.getFloatFormat(), "F");
889
81.2k
  DefineFloatMacros(Builder, "DBL", &TI.getDoubleFormat(), "");
890
81.2k
  DefineFloatMacros(Builder, "LDBL", &TI.getLongDoubleFormat(), "L");
891
892
  // Define a __POINTER_WIDTH__ macro for stdint.h.
893
81.2k
  Builder.defineMacro("__POINTER_WIDTH__",
894
81.2k
                      Twine((int)TI.getPointerWidth(0)));
895
896
  // Define __BIGGEST_ALIGNMENT__ to be compatible with gcc.
897
81.2k
  Builder.defineMacro("__BIGGEST_ALIGNMENT__",
898
81.2k
                      Twine(TI.getSuitableAlign() / TI.getCharWidth()) );
899
900
81.2k
  if (!LangOpts.CharIsSigned)
901
870
    Builder.defineMacro("__CHAR_UNSIGNED__");
902
903
81.2k
  if (!TargetInfo::isTypeSigned(TI.getWCharType()))
904
11.7k
    Builder.defineMacro("__WCHAR_UNSIGNED__");
905
906
81.2k
  if (!TargetInfo::isTypeSigned(TI.getWIntType()))
907
14.6k
    Builder.defineMacro("__WINT_UNSIGNED__");
908
909
  // Define exact-width integer types for stdint.h
910
81.2k
  DefineExactWidthIntType(TargetInfo::SignedChar, TI, Builder);
911
912
81.2k
  if (TI.getShortWidth() > TI.getCharWidth())
913
81.2k
    DefineExactWidthIntType(TargetInfo::SignedShort, TI, Builder);
914
915
81.2k
  if (TI.getIntWidth() > TI.getShortWidth())
916
81.2k
    DefineExactWidthIntType(TargetInfo::SignedInt, TI, Builder);
917
918
81.2k
  if (TI.getLongWidth() > TI.getIntWidth())
919
57.6k
    DefineExactWidthIntType(TargetInfo::SignedLong, TI, Builder);
920
921
81.2k
  if (TI.getLongLongWidth() > TI.getLongWidth())
922
24.3k
    DefineExactWidthIntType(TargetInfo::SignedLongLong, TI, Builder);
923
924
81.2k
  DefineExactWidthIntType(TargetInfo::UnsignedChar, TI, Builder);
925
81.2k
  DefineExactWidthIntTypeSize(TargetInfo::UnsignedChar, TI, Builder);
926
81.2k
  DefineExactWidthIntTypeSize(TargetInfo::SignedChar, TI, Builder);
927
928
81.2k
  if (
TI.getShortWidth() > TI.getCharWidth()81.2k
) {
929
81.2k
    DefineExactWidthIntType(TargetInfo::UnsignedShort, TI, Builder);
930
81.2k
    DefineExactWidthIntTypeSize(TargetInfo::UnsignedShort, TI, Builder);
931
81.2k
    DefineExactWidthIntTypeSize(TargetInfo::SignedShort, TI, Builder);
932
81.2k
  }
933
934
81.2k
  if (TI.getIntWidth() > TI.getShortWidth()) {
935
81.2k
    DefineExactWidthIntType(TargetInfo::UnsignedInt, TI, Builder);
936
81.2k
    DefineExactWidthIntTypeSize(TargetInfo::UnsignedInt, TI, Builder);
937
81.2k
    DefineExactWidthIntTypeSize(TargetInfo::SignedInt, TI, Builder);
938
81.2k
  }
939
940
81.2k
  if (TI.getLongWidth() > TI.getIntWidth()) {
941
57.6k
    DefineExactWidthIntType(TargetInfo::UnsignedLong, TI, Builder);
942
57.6k
    DefineExactWidthIntTypeSize(TargetInfo::UnsignedLong, TI, Builder);
943
57.6k
    DefineExactWidthIntTypeSize(TargetInfo::SignedLong, TI, Builder);
944
57.6k
  }
945
946
81.2k
  if (TI.getLongLongWidth() > TI.getLongWidth()) {
947
24.3k
    DefineExactWidthIntType(TargetInfo::UnsignedLongLong, TI, Builder);
948
24.3k
    DefineExactWidthIntTypeSize(TargetInfo::UnsignedLongLong, TI, Builder);
949
24.3k
    DefineExactWidthIntTypeSize(TargetInfo::SignedLongLong, TI, Builder);
950
24.3k
  }
951
952
81.2k
  DefineLeastWidthIntType(8, true, TI, Builder);
953
81.2k
  DefineLeastWidthIntType(8, false, TI, Builder);
954
81.2k
  DefineLeastWidthIntType(16, true, TI, Builder);
955
81.2k
  DefineLeastWidthIntType(16, false, TI, Builder);
956
81.2k
  DefineLeastWidthIntType(32, true, TI, Builder);
957
81.2k
  DefineLeastWidthIntType(32, false, TI, Builder);
958
81.2k
  DefineLeastWidthIntType(64, true, TI, Builder);
959
81.2k
  DefineLeastWidthIntType(64, false, TI, Builder);
960
961
81.2k
  DefineFastIntType(8, true, TI, Builder);
962
81.2k
  DefineFastIntType(8, false, TI, Builder);
963
81.2k
  DefineFastIntType(16, true, TI, Builder);
964
81.2k
  DefineFastIntType(16, false, TI, Builder);
965
81.2k
  DefineFastIntType(32, true, TI, Builder);
966
81.2k
  DefineFastIntType(32, false, TI, Builder);
967
81.2k
  DefineFastIntType(64, true, TI, Builder);
968
81.2k
  DefineFastIntType(64, false, TI, Builder);
969
970
81.2k
  char UserLabelPrefix[2] = {TI.getDataLayout().getGlobalPrefix(), 0};
971
81.2k
  Builder.defineMacro("__USER_LABEL_PREFIX__", UserLabelPrefix);
972
973
81.2k
  if (LangOpts.FastMath || 
LangOpts.FiniteMathOnly81.2k
)
974
44
    Builder.defineMacro("__FINITE_MATH_ONLY__", "1");
975
81.2k
  else
976
81.2k
    Builder.defineMacro("__FINITE_MATH_ONLY__", "0");
977
978
81.2k
  if (LangOpts.GNUCVersion) {
979
25.9k
    if (LangOpts.GNUInline || 
LangOpts.CPlusPlus25.5k
)
980
19.4k
      Builder.defineMacro("__GNUC_GNU_INLINE__");
981
6.45k
    else
982
6.45k
      Builder.defineMacro("__GNUC_STDC_INLINE__");
983
984
    // The value written by __atomic_test_and_set.
985
    // FIXME: This is target-dependent.
986
25.9k
    Builder.defineMacro("__GCC_ATOMIC_TEST_AND_SET_TRUEVAL", "1");
987
25.9k
  }
988
989
107k
  auto addLockFreeMacros = [&](const llvm::Twine &Prefix) {
990
    // Used by libc++ and libstdc++ to implement ATOMIC_<foo>_LOCK_FREE.
991
107k
    unsigned InlineWidthBits = TI.getMaxAtomicInlineWidth();
992
107k
#define DEFINE_LOCK_FREE_MACRO(TYPE, Type)                                     \
993
4.75k
  Builder.defineMacro(Prefix + #TYPE "_LOCK_FREE",                             \
994
4.75k
                      getLockFreeValue(TI.get##Type##Width(),                  \
995
4.75k
                                       TI.get##Type##Align(),                  \
996
4.75k
                                       InlineWidthBits));
997
107k
    DEFINE_LOCK_FREE_MACRO(BOOL, Bool);
998
107k
    DEFINE_LOCK_FREE_MACRO(CHAR, Char);
999
107k
    if (LangOpts.Char8)
1000
4.75k
      DEFINE_LOCK_FREE_MACRO(CHAR8_T, Char); // Treat char8_t like char.
1001
107k
    DEFINE_LOCK_FREE_MACRO(CHAR16_T, Char16);
1002
107k
    DEFINE_LOCK_FREE_MACRO(CHAR32_T, Char32);
1003
107k
    DEFINE_LOCK_FREE_MACRO(WCHAR_T, WChar);
1004
107k
    DEFINE_LOCK_FREE_MACRO(SHORT, Short);
1005
107k
    DEFINE_LOCK_FREE_MACRO(INT, Int);
1006
107k
    DEFINE_LOCK_FREE_MACRO(LONG, Long);
1007
107k
    DEFINE_LOCK_FREE_MACRO(LLONG, LongLong);
1008
107k
    Builder.defineMacro(Prefix + "POINTER_LOCK_FREE",
1009
107k
                        getLockFreeValue(TI.getPointerWidth(0),
1010
107k
                                         TI.getPointerAlign(0),
1011
107k
                                         InlineWidthBits));
1012
107k
#undef DEFINE_LOCK_FREE_MACRO
1013
107k
  };
1014
81.2k
  addLockFreeMacros("__CLANG_ATOMIC_");
1015
81.2k
  if (LangOpts.GNUCVersion)
1016
25.9k
    addLockFreeMacros("__GCC_ATOMIC_");
1017
1018
81.2k
  if (LangOpts.NoInlineDefine)
1019
65.2k
    Builder.defineMacro("__NO_INLINE__");
1020
1021
81.2k
  if (unsigned PICLevel = LangOpts.PICLevel) {
1022
23.0k
    Builder.defineMacro("__PIC__", Twine(PICLevel));
1023
23.0k
    Builder.defineMacro("__pic__", Twine(PICLevel));
1024
23.0k
    if (LangOpts.PIE) {
1025
26
      Builder.defineMacro("__PIE__", Twine(PICLevel));
1026
26
      Builder.defineMacro("__pie__", Twine(PICLevel));
1027
26
    }
1028
23.0k
  }
1029
1030
  // Macros to control C99 numerics and <float.h>
1031
81.2k
  Builder.defineMacro("__FLT_EVAL_METHOD__", Twine(TI.getFloatEvalMethod()));
1032
81.2k
  Builder.defineMacro("__FLT_RADIX__", "2");
1033
81.2k
  Builder.defineMacro("__DECIMAL_DIG__", "__LDBL_DECIMAL_DIG__");
1034
1035
81.2k
  if (LangOpts.getStackProtector() == LangOptions::SSPOn)
1036
15.7k
    Builder.defineMacro("__SSP__");
1037
65.4k
  else if (LangOpts.getStackProtector() == LangOptions::SSPStrong)
1038
52
    Builder.defineMacro("__SSP_STRONG__", "2");
1039
65.4k
  else if (LangOpts.getStackProtector() == LangOptions::SSPReq)
1040
2
    Builder.defineMacro("__SSP_ALL__", "3");
1041
1042
81.2k
  if (PPOpts.SetUpStaticAnalyzer)
1043
1.28k
    Builder.defineMacro("__clang_analyzer__");
1044
1045
81.2k
  if (LangOpts.FastRelaxedMath)
1046
3
    Builder.defineMacro("__FAST_RELAXED_MATH__");
1047
1048
81.2k
  if (FEOpts.ProgramAction == frontend::RewriteObjC ||
1049
81.0k
      LangOpts.getGC() != LangOptions::NonGC) {
1050
255
    Builder.defineMacro("__weak", "__attribute__((objc_gc(weak)))");
1051
255
    Builder.defineMacro("__strong", "__attribute__((objc_gc(strong)))");
1052
255
    Builder.defineMacro("__autoreleasing", "");
1053
255
    Builder.defineMacro("__unsafe_unretained", "");
1054
80.9k
  } else if (LangOpts.ObjC) {
1055
19.5k
    Builder.defineMacro("__weak", "__attribute__((objc_ownership(weak)))");
1056
19.5k
    Builder.defineMacro("__strong", "__attribute__((objc_ownership(strong)))");
1057
19.5k
    Builder.defineMacro("__autoreleasing",
1058
19.5k
                        "__attribute__((objc_ownership(autoreleasing)))");
1059
19.5k
    Builder.defineMacro("__unsafe_unretained",
1060
19.5k
                        "__attribute__((objc_ownership(none)))");
1061
19.5k
  }
1062
1063
  // On Darwin, there are __double_underscored variants of the type
1064
  // nullability qualifiers.
1065
81.2k
  if (TI.getTriple().isOSDarwin()) {
1066
46.8k
    Builder.defineMacro("__nonnull", "_Nonnull");
1067
46.8k
    Builder.defineMacro("__null_unspecified", "_Null_unspecified");
1068
46.8k
    Builder.defineMacro("__nullable", "_Nullable");
1069
46.8k
  }
1070
1071
  // Add a macro to differentiate between regular iOS/tvOS/watchOS targets and
1072
  // the corresponding simulator targets.
1073
81.2k
  if (TI.getTriple().isOSDarwin() && 
TI.getTriple().isSimulatorEnvironment()46.8k
)
1074
39
    Builder.defineMacro("__APPLE_EMBEDDED_SIMULATOR__", "1");
1075
1076
  // OpenMP definition
1077
  // OpenMP 2.2:
1078
  //   In implementations that support a preprocessor, the _OPENMP
1079
  //   macro name is defined to have the decimal value yyyymm where
1080
  //   yyyy and mm are the year and the month designations of the
1081
  //   version of the OpenMP API that the implementation support.
1082
81.2k
  if (!LangOpts.OpenMPSimd) {
1083
76.4k
    switch (LangOpts.OpenMP) {
1084
69.7k
    case 0:
1085
69.7k
      break;
1086
2
    case 31:
1087
2
      Builder.defineMacro("_OPENMP", "201107");
1088
2
      break;
1089
11
    case 40:
1090
11
      Builder.defineMacro("_OPENMP", "201307");
1091
11
      break;
1092
1.26k
    case 45:
1093
1.26k
      Builder.defineMacro("_OPENMP", "201511");
1094
1.26k
      break;
1095
5.37k
    default:
1096
      // Default version is OpenMP 5.0
1097
5.37k
      Builder.defineMacro("_OPENMP", "201811");
1098
5.37k
      break;
1099
81.2k
    }
1100
81.2k
  }
1101
1102
  // CUDA device path compilaton
1103
81.2k
  if (LangOpts.CUDAIsDevice && 
!LangOpts.HIP254
) {
1104
    // The CUDA_ARCH value is set for the GPU target specified in the NVPTX
1105
    // backend's target defines.
1106
188
    Builder.defineMacro("__CUDA_ARCH__");
1107
188
  }
1108
1109
  // We need to communicate this to our CUDA header wrapper, which in turn
1110
  // informs the proper CUDA headers of this choice.
1111
81.2k
  if (
LangOpts.CUDADeviceApproxTranscendentals81.2k
|| LangOpts.FastMath) {
1112
41
    Builder.defineMacro("__CLANG_CUDA_APPROX_TRANSCENDENTALS__");
1113
41
  }
1114
1115
  // Define a macro indicating that the source file is being compiled with a
1116
  // SYCL device compiler which doesn't produce host binary.
1117
81.2k
  if (LangOpts.SYCLIsDevice) {
1118
11
    Builder.defineMacro("__SYCL_DEVICE_ONLY__", "1");
1119
11
  }
1120
1121
  // OpenCL definitions.
1122
81.2k
  if (LangOpts.OpenCL) {
1123
691
#define OPENCLEXT(Ext)                                                         \
1124
20.0k
  if (TI.getSupportedOpenCLOpts().isSupported(#Ext, LangOpts))                 \
1125
12.9k
    Builder.defineMacro(#Ext);
1126
691
#include "clang/Basic/OpenCLExtensions.def"
1127
1128
691
    if (TI.getTriple().isSPIR())
1129
182
      Builder.defineMacro("__IMAGE_SUPPORT__");
1130
691
  }
1131
1132
81.2k
  if (TI.hasInt128Type() && 
LangOpts.CPlusPlus65.0k
&&
LangOpts.GNUMode49.7k
) {
1133
    // For each extended integer type, g++ defines a macro mapping the
1134
    // index of the type (0 in this case) in some list of extended types
1135
    // to the type.
1136
25.2k
    Builder.defineMacro("__GLIBCXX_TYPE_INT_N_0", "__int128");
1137
25.2k
    Builder.defineMacro("__GLIBCXX_BITSIZE_INT_N_0", "128");
1138
25.2k
  }
1139
1140
  // Get other target #defines.
1141
81.2k
  TI.getTargetDefines(LangOpts, Builder);
1142
81.2k
}
1143
1144
/// InitializePreprocessor - Initialize the preprocessor getting it and the
1145
/// environment ready to process a single file. This returns true on error.
1146
///
1147
void clang::InitializePreprocessor(
1148
    Preprocessor &PP, const PreprocessorOptions &InitOpts,
1149
    const PCHContainerReader &PCHContainerRdr,
1150
81.1k
    const FrontendOptions &FEOpts) {
1151
81.1k
  const LangOptions &LangOpts = PP.getLangOpts();
1152
81.1k
  std::string PredefineBuffer;
1153
81.1k
  PredefineBuffer.reserve(4080);
1154
81.1k
  llvm::raw_string_ostream Predefines(PredefineBuffer);
1155
81.1k
  MacroBuilder Builder(Predefines);
1156
1157
  // Emit line markers for various builtin sections of the file.  We don't do
1158
  // this in asm preprocessor mode, because "# 4" is not a line marker directive
1159
  // in this mode.
1160
81.1k
  if (!PP.getLangOpts().AsmPreprocessor)
1161
81.0k
    Builder.append("# 1 \"<built-in>\" 3");
1162
1163
  // Install things like __POWERPC__, __GNUC__, etc into the macro table.
1164
81.1k
  if (InitOpts.UsePredefines) {
1165
    // FIXME: This will create multiple definitions for most of the predefined
1166
    // macros. This is not the right way to handle this.
1167
81.1k
    if ((LangOpts.CUDA || 
LangOpts.OpenMPIsDevice80.7k
||
LangOpts.SYCLIsDevice79.9k
) &&
1168
1.14k
        PP.getAuxTargetInfo())
1169
138
      InitializePredefinedMacros(*PP.getAuxTargetInfo(), LangOpts, FEOpts,
1170
138
                                 PP.getPreprocessorOpts(), Builder);
1171
1172
81.1k
    InitializePredefinedMacros(PP.getTargetInfo(), LangOpts, FEOpts,
1173
81.1k
                               PP.getPreprocessorOpts(), Builder);
1174
1175
    // Install definitions to make Objective-C++ ARC work well with various
1176
    // C++ Standard Library implementations.
1177
81.1k
    if (LangOpts.ObjC && 
LangOpts.CPlusPlus19.8k
&&
1178
14.4k
        (LangOpts.ObjCAutoRefCount || 
LangOpts.ObjCWeak13.0k
)) {
1179
1.46k
      switch (InitOpts.ObjCXXARCStandardLibrary) {
1180
134
      case ARCXX_nolib:
1181
1.45k
      case ARCXX_libcxx:
1182
1.45k
        break;
1183
1184
8
      case ARCXX_libstdcxx:
1185
8
        AddObjCXXARCLibstdcxxDefines(LangOpts, Builder);
1186
8
        break;
1187
81.1k
      }
1188
81.1k
    }
1189
81.1k
  }
1190
1191
  // Even with predefines off, some macros are still predefined.
1192
  // These should all be defined in the preprocessor according to the
1193
  // current language configuration.
1194
81.1k
  InitializeStandardPredefinedMacros(PP.getTargetInfo(), PP.getLangOpts(),
1195
81.1k
                                     FEOpts, Builder);
1196
1197
  // Add on the predefines from the driver.  Wrap in a #line directive to report
1198
  // that they come from the command line.
1199
81.1k
  if (!PP.getLangOpts().AsmPreprocessor)
1200
81.0k
    Builder.append("# 1 \"<command line>\" 1");
1201
1202
  // Process #define's and #undef's in the order they are given.
1203
393k
  for (unsigned i = 0, e = InitOpts.Macros.size(); i != e; 
++i312k
) {
1204
312k
    if (InitOpts.Macros[i].second)  // isUndef
1205
49
      Builder.undefineMacro(InitOpts.Macros[i].first);
1206
312k
    else
1207
312k
      DefineBuiltinMacro(Builder, InitOpts.Macros[i].first,
1208
312k
                         PP.getDiagnostics());
1209
312k
  }
1210
1211
  // Exit the command line and go back to <built-in> (2 is LC_LEAVE).
1212
81.1k
  if (!PP.getLangOpts().AsmPreprocessor)
1213
81.0k
    Builder.append("# 1 \"<built-in>\" 2");
1214
1215
  // If -imacros are specified, include them now.  These are processed before
1216
  // any -include directives.
1217
81.1k
  for (unsigned i = 0, e = InitOpts.MacroIncludes.size(); i != e; 
++i2
)
1218
2
    AddImplicitIncludeMacros(Builder, InitOpts.MacroIncludes[i]);
1219
1220
  // Process -include-pch/-include-pth directives.
1221
81.1k
  if (!InitOpts.ImplicitPCHInclude.empty())
1222
3.53k
    AddImplicitIncludePCH(Builder, PP, PCHContainerRdr,
1223
3.53k
                          InitOpts.ImplicitPCHInclude);
1224
1225
  // Process -include directives.
1226
84.4k
  for (unsigned i = 0, e = InitOpts.Includes.size(); i != e; 
++i3.35k
) {
1227
3.35k
    const std::string &Path = InitOpts.Includes[i];
1228
3.35k
    AddImplicitInclude(Builder, Path);
1229
3.35k
  }
1230
1231
  // Instruct the preprocessor to skip the preamble.
1232
81.1k
  PP.setSkipMainFilePreamble(InitOpts.PrecompiledPreambleBytes.first,
1233
81.1k
                             InitOpts.PrecompiledPreambleBytes.second);
1234
1235
  // Copy PredefinedBuffer into the Preprocessor.
1236
81.1k
  PP.setPredefines(Predefines.str());
1237
81.1k
}