1 //===- CompilerInvocation.cpp ---------------------------------------------===//
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 #include "clang/Frontend/CompilerInvocation.h"
10 #include "TestModuleFileExtension.h"
11 #include "clang/Basic/Builtins.h"
12 #include "clang/Basic/CharInfo.h"
13 #include "clang/Basic/CodeGenOptions.h"
14 #include "clang/Basic/CommentOptions.h"
15 #include "clang/Basic/DebugInfoOptions.h"
16 #include "clang/Basic/Diagnostic.h"
17 #include "clang/Basic/DiagnosticDriver.h"
18 #include "clang/Basic/DiagnosticOptions.h"
19 #include "clang/Basic/FileSystemOptions.h"
20 #include "clang/Basic/LLVM.h"
21 #include "clang/Basic/LangOptions.h"
22 #include "clang/Basic/LangStandard.h"
23 #include "clang/Basic/ObjCRuntime.h"
24 #include "clang/Basic/Sanitizers.h"
25 #include "clang/Basic/SourceLocation.h"
26 #include "clang/Basic/TargetOptions.h"
27 #include "clang/Basic/Version.h"
28 #include "clang/Basic/Visibility.h"
29 #include "clang/Basic/XRayInstr.h"
30 #include "clang/Config/config.h"
31 #include "clang/Driver/Driver.h"
32 #include "clang/Driver/DriverDiagnostic.h"
33 #include "clang/Driver/Options.h"
34 #include "clang/Frontend/CommandLineSourceLoc.h"
35 #include "clang/Frontend/DependencyOutputOptions.h"
36 #include "clang/Frontend/FrontendDiagnostic.h"
37 #include "clang/Frontend/FrontendOptions.h"
38 #include "clang/Frontend/FrontendPluginRegistry.h"
39 #include "clang/Frontend/MigratorOptions.h"
40 #include "clang/Frontend/PreprocessorOutputOptions.h"
41 #include "clang/Frontend/TextDiagnosticBuffer.h"
42 #include "clang/Frontend/Utils.h"
43 #include "clang/Lex/HeaderSearchOptions.h"
44 #include "clang/Lex/PreprocessorOptions.h"
45 #include "clang/Sema/CodeCompleteOptions.h"
46 #include "clang/Serialization/ASTBitCodes.h"
47 #include "clang/Serialization/ModuleFileExtension.h"
48 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h"
49 #include "llvm/ADT/APInt.h"
50 #include "llvm/ADT/ArrayRef.h"
51 #include "llvm/ADT/CachedHashString.h"
52 #include "llvm/ADT/DenseSet.h"
53 #include "llvm/ADT/FloatingPointMode.h"
54 #include "llvm/ADT/Hashing.h"
55 #include "llvm/ADT/None.h"
56 #include "llvm/ADT/Optional.h"
57 #include "llvm/ADT/STLExtras.h"
58 #include "llvm/ADT/SmallString.h"
59 #include "llvm/ADT/SmallVector.h"
60 #include "llvm/ADT/StringRef.h"
61 #include "llvm/ADT/StringSwitch.h"
62 #include "llvm/ADT/Triple.h"
63 #include "llvm/ADT/Twine.h"
64 #include "llvm/Config/llvm-config.h"
65 #include "llvm/IR/DebugInfoMetadata.h"
66 #include "llvm/Linker/Linker.h"
67 #include "llvm/MC/MCTargetOptions.h"
68 #include "llvm/Option/Arg.h"
69 #include "llvm/Option/ArgList.h"
70 #include "llvm/Option/OptSpecifier.h"
71 #include "llvm/Option/OptTable.h"
72 #include "llvm/Option/Option.h"
73 #include "llvm/ProfileData/InstrProfReader.h"
74 #include "llvm/Remarks/HotnessThresholdParser.h"
75 #include "llvm/Support/CodeGen.h"
76 #include "llvm/Support/Compiler.h"
77 #include "llvm/Support/Error.h"
78 #include "llvm/Support/ErrorHandling.h"
79 #include "llvm/Support/ErrorOr.h"
80 #include "llvm/Support/FileSystem.h"
81 #include "llvm/Support/Host.h"
82 #include "llvm/Support/MathExtras.h"
83 #include "llvm/Support/MemoryBuffer.h"
84 #include "llvm/Support/Path.h"
85 #include "llvm/Support/Process.h"
86 #include "llvm/Support/Regex.h"
87 #include "llvm/Support/VersionTuple.h"
88 #include "llvm/Support/VirtualFileSystem.h"
89 #include "llvm/Support/raw_ostream.h"
90 #include "llvm/Target/TargetOptions.h"
91 #include <algorithm>
92 #include <atomic>
93 #include <cassert>
94 #include <cstddef>
95 #include <cstring>
96 #include <memory>
97 #include <string>
98 #include <tuple>
99 #include <type_traits>
100 #include <utility>
101 #include <vector>
102
103 using namespace clang;
104 using namespace driver;
105 using namespace options;
106 using namespace llvm::opt;
107
108 //===----------------------------------------------------------------------===//
109 // Initialization.
110 //===----------------------------------------------------------------------===//
111
CompilerInvocationRefBase()112 CompilerInvocationRefBase::CompilerInvocationRefBase()
113 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()),
114 DiagnosticOpts(new DiagnosticOptions()),
115 HeaderSearchOpts(new HeaderSearchOptions()),
116 PreprocessorOpts(new PreprocessorOptions()),
117 AnalyzerOpts(new AnalyzerOptions()) {}
118
CompilerInvocationRefBase(const CompilerInvocationRefBase & X)119 CompilerInvocationRefBase::CompilerInvocationRefBase(
120 const CompilerInvocationRefBase &X)
121 : LangOpts(new LangOptions(*X.getLangOpts())),
122 TargetOpts(new TargetOptions(X.getTargetOpts())),
123 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())),
124 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())),
125 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())),
126 AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {}
127
128 CompilerInvocationRefBase::CompilerInvocationRefBase(
129 CompilerInvocationRefBase &&X) = default;
130
131 CompilerInvocationRefBase &
operator =(CompilerInvocationRefBase X)132 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) {
133 LangOpts.swap(X.LangOpts);
134 TargetOpts.swap(X.TargetOpts);
135 DiagnosticOpts.swap(X.DiagnosticOpts);
136 HeaderSearchOpts.swap(X.HeaderSearchOpts);
137 PreprocessorOpts.swap(X.PreprocessorOpts);
138 AnalyzerOpts.swap(X.AnalyzerOpts);
139 return *this;
140 }
141
142 CompilerInvocationRefBase &
143 CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default;
144
145 CompilerInvocationRefBase::~CompilerInvocationRefBase() = default;
146
147 //===----------------------------------------------------------------------===//
148 // Normalizers
149 //===----------------------------------------------------------------------===//
150
151 #define SIMPLE_ENUM_VALUE_TABLE
152 #include "clang/Driver/Options.inc"
153 #undef SIMPLE_ENUM_VALUE_TABLE
154
normalizeSimpleFlag(OptSpecifier Opt,unsigned TableIndex,const ArgList & Args,DiagnosticsEngine & Diags)155 static llvm::Optional<bool> normalizeSimpleFlag(OptSpecifier Opt,
156 unsigned TableIndex,
157 const ArgList &Args,
158 DiagnosticsEngine &Diags) {
159 if (Args.hasArg(Opt))
160 return true;
161 return None;
162 }
163
normalizeSimpleNegativeFlag(OptSpecifier Opt,unsigned,const ArgList & Args,DiagnosticsEngine &)164 static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned,
165 const ArgList &Args,
166 DiagnosticsEngine &) {
167 if (Args.hasArg(Opt))
168 return false;
169 return None;
170 }
171
172 /// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but
173 /// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with
174 /// unnecessary template instantiations and just ignore it with a variadic
175 /// argument.
denormalizeSimpleFlag(SmallVectorImpl<const char * > & Args,const char * Spelling,CompilerInvocation::StringAllocator,Option::OptionClass,unsigned,...)176 static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args,
177 const char *Spelling,
178 CompilerInvocation::StringAllocator,
179 Option::OptionClass, unsigned, /*T*/...) {
180 Args.push_back(Spelling);
181 }
182
is_uint64_t_convertible()183 template <typename T> static constexpr bool is_uint64_t_convertible() {
184 return !std::is_same<T, uint64_t>::value &&
185 llvm::is_integral_or_enum<T>::value;
186 }
187
188 template <typename T,
189 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false>
makeFlagToValueNormalizer(T Value)190 static auto makeFlagToValueNormalizer(T Value) {
191 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args,
192 DiagnosticsEngine &) -> Optional<T> {
193 if (Args.hasArg(Opt))
194 return Value;
195 return None;
196 };
197 }
198
199 template <typename T,
200 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false>
makeFlagToValueNormalizer(T Value)201 static auto makeFlagToValueNormalizer(T Value) {
202 return makeFlagToValueNormalizer(uint64_t(Value));
203 }
204
makeBooleanOptionNormalizer(bool Value,bool OtherValue,OptSpecifier OtherOpt)205 static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue,
206 OptSpecifier OtherOpt) {
207 return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned,
208 const ArgList &Args,
209 DiagnosticsEngine &) -> Optional<bool> {
210 if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) {
211 return A->getOption().matches(Opt) ? Value : OtherValue;
212 }
213 return None;
214 };
215 }
216
makeBooleanOptionDenormalizer(bool Value)217 static auto makeBooleanOptionDenormalizer(bool Value) {
218 return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling,
219 CompilerInvocation::StringAllocator, Option::OptionClass,
220 unsigned, bool KeyPath) {
221 if (KeyPath == Value)
222 Args.push_back(Spelling);
223 };
224 }
225
denormalizeStringImpl(SmallVectorImpl<const char * > & Args,const char * Spelling,CompilerInvocation::StringAllocator SA,Option::OptionClass OptClass,unsigned,const Twine & Value)226 static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args,
227 const char *Spelling,
228 CompilerInvocation::StringAllocator SA,
229 Option::OptionClass OptClass, unsigned,
230 const Twine &Value) {
231 switch (OptClass) {
232 case Option::SeparateClass:
233 case Option::JoinedOrSeparateClass:
234 case Option::JoinedAndSeparateClass:
235 Args.push_back(Spelling);
236 Args.push_back(SA(Value));
237 break;
238 case Option::JoinedClass:
239 case Option::CommaJoinedClass:
240 Args.push_back(SA(Twine(Spelling) + Value));
241 break;
242 default:
243 llvm_unreachable("Cannot denormalize an option with option class "
244 "incompatible with string denormalization.");
245 }
246 }
247
248 template <typename T>
249 static void
denormalizeString(SmallVectorImpl<const char * > & Args,const char * Spelling,CompilerInvocation::StringAllocator SA,Option::OptionClass OptClass,unsigned TableIndex,T Value)250 denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling,
251 CompilerInvocation::StringAllocator SA,
252 Option::OptionClass OptClass, unsigned TableIndex, T Value) {
253 denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value));
254 }
255
256 static Optional<SimpleEnumValue>
findValueTableByName(const SimpleEnumValueTable & Table,StringRef Name)257 findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) {
258 for (int I = 0, E = Table.Size; I != E; ++I)
259 if (Name == Table.Table[I].Name)
260 return Table.Table[I];
261
262 return None;
263 }
264
265 static Optional<SimpleEnumValue>
findValueTableByValue(const SimpleEnumValueTable & Table,unsigned Value)266 findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) {
267 for (int I = 0, E = Table.Size; I != E; ++I)
268 if (Value == Table.Table[I].Value)
269 return Table.Table[I];
270
271 return None;
272 }
273
normalizeSimpleEnum(OptSpecifier Opt,unsigned TableIndex,const ArgList & Args,DiagnosticsEngine & Diags)274 static llvm::Optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt,
275 unsigned TableIndex,
276 const ArgList &Args,
277 DiagnosticsEngine &Diags) {
278 assert(TableIndex < SimpleEnumValueTablesSize);
279 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex];
280
281 auto *Arg = Args.getLastArg(Opt);
282 if (!Arg)
283 return None;
284
285 StringRef ArgValue = Arg->getValue();
286 if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue))
287 return MaybeEnumVal->Value;
288
289 Diags.Report(diag::err_drv_invalid_value)
290 << Arg->getAsString(Args) << ArgValue;
291 return None;
292 }
293
denormalizeSimpleEnumImpl(SmallVectorImpl<const char * > & Args,const char * Spelling,CompilerInvocation::StringAllocator SA,Option::OptionClass OptClass,unsigned TableIndex,unsigned Value)294 static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args,
295 const char *Spelling,
296 CompilerInvocation::StringAllocator SA,
297 Option::OptionClass OptClass,
298 unsigned TableIndex, unsigned Value) {
299 assert(TableIndex < SimpleEnumValueTablesSize);
300 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex];
301 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) {
302 denormalizeString(Args, Spelling, SA, OptClass, TableIndex,
303 MaybeEnumVal->Name);
304 } else {
305 llvm_unreachable("The simple enum value was not correctly defined in "
306 "the tablegen option description");
307 }
308 }
309
310 template <typename T>
denormalizeSimpleEnum(SmallVectorImpl<const char * > & Args,const char * Spelling,CompilerInvocation::StringAllocator SA,Option::OptionClass OptClass,unsigned TableIndex,T Value)311 static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args,
312 const char *Spelling,
313 CompilerInvocation::StringAllocator SA,
314 Option::OptionClass OptClass,
315 unsigned TableIndex, T Value) {
316 return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex,
317 static_cast<unsigned>(Value));
318 }
319
normalizeString(OptSpecifier Opt,int TableIndex,const ArgList & Args,DiagnosticsEngine & Diags)320 static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex,
321 const ArgList &Args,
322 DiagnosticsEngine &Diags) {
323 auto *Arg = Args.getLastArg(Opt);
324 if (!Arg)
325 return None;
326 return std::string(Arg->getValue());
327 }
328
329 template <typename IntTy>
normalizeStringIntegral(OptSpecifier Opt,int,const ArgList & Args,DiagnosticsEngine & Diags)330 static Optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int,
331 const ArgList &Args,
332 DiagnosticsEngine &Diags) {
333 auto *Arg = Args.getLastArg(Opt);
334 if (!Arg)
335 return None;
336 IntTy Res;
337 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) {
338 Diags.Report(diag::err_drv_invalid_int_value)
339 << Arg->getAsString(Args) << Arg->getValue();
340 return None;
341 }
342 return Res;
343 }
344
345 static Optional<std::vector<std::string>>
normalizeStringVector(OptSpecifier Opt,int,const ArgList & Args,DiagnosticsEngine &)346 normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args,
347 DiagnosticsEngine &) {
348 return Args.getAllArgValues(Opt);
349 }
350
denormalizeStringVector(SmallVectorImpl<const char * > & Args,const char * Spelling,CompilerInvocation::StringAllocator SA,Option::OptionClass OptClass,unsigned TableIndex,const std::vector<std::string> & Values)351 static void denormalizeStringVector(SmallVectorImpl<const char *> &Args,
352 const char *Spelling,
353 CompilerInvocation::StringAllocator SA,
354 Option::OptionClass OptClass,
355 unsigned TableIndex,
356 const std::vector<std::string> &Values) {
357 switch (OptClass) {
358 case Option::CommaJoinedClass: {
359 std::string CommaJoinedValue;
360 if (!Values.empty()) {
361 CommaJoinedValue.append(Values.front());
362 for (const std::string &Value : llvm::drop_begin(Values, 1)) {
363 CommaJoinedValue.append(",");
364 CommaJoinedValue.append(Value);
365 }
366 }
367 denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass,
368 TableIndex, CommaJoinedValue);
369 break;
370 }
371 case Option::JoinedClass:
372 case Option::SeparateClass:
373 case Option::JoinedOrSeparateClass:
374 for (const std::string &Value : Values)
375 denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value);
376 break;
377 default:
378 llvm_unreachable("Cannot denormalize an option with option class "
379 "incompatible with string vector denormalization.");
380 }
381 }
382
normalizeTriple(OptSpecifier Opt,int TableIndex,const ArgList & Args,DiagnosticsEngine & Diags)383 static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex,
384 const ArgList &Args,
385 DiagnosticsEngine &Diags) {
386 auto *Arg = Args.getLastArg(Opt);
387 if (!Arg)
388 return None;
389 return llvm::Triple::normalize(Arg->getValue());
390 }
391
392 template <typename T, typename U>
mergeForwardValue(T KeyPath,U Value)393 static T mergeForwardValue(T KeyPath, U Value) {
394 return static_cast<T>(Value);
395 }
396
mergeMaskValue(T KeyPath,U Value)397 template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) {
398 return KeyPath | Value;
399 }
400
extractForwardValue(T KeyPath)401 template <typename T> static T extractForwardValue(T KeyPath) {
402 return KeyPath;
403 }
404
405 template <typename T, typename U, U Value>
extractMaskValue(T KeyPath)406 static T extractMaskValue(T KeyPath) {
407 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T();
408 }
409
410 #define PARSE_OPTION_WITH_MARSHALLING( \
411 ARGS, DIAGS, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \
412 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX) \
413 if ((FLAGS)&options::CC1Option) { \
414 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \
415 if (IMPLIED_CHECK) \
416 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \
417 if (SHOULD_PARSE) \
418 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \
419 KEYPATH = \
420 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \
421 }
422
423 // Capture the extracted value as a lambda argument to avoid potential issues
424 // with lifetime extension of the reference.
425 #define GENERATE_OPTION_WITH_MARSHALLING( \
426 ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \
427 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \
428 TABLE_INDEX) \
429 if ((FLAGS)&options::CC1Option) { \
430 [&](const auto &Extracted) { \
431 if (ALWAYS_EMIT || \
432 (Extracted != \
433 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \
434 : (DEFAULT_VALUE)))) \
435 DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \
436 TABLE_INDEX, Extracted); \
437 }(EXTRACTOR(KEYPATH)); \
438 }
439
440 static const StringRef GetInputKindName(InputKind IK);
441
FixupInvocation(CompilerInvocation & Invocation,DiagnosticsEngine & Diags,const ArgList & Args,InputKind IK)442 static bool FixupInvocation(CompilerInvocation &Invocation,
443 DiagnosticsEngine &Diags, const ArgList &Args,
444 InputKind IK) {
445 unsigned NumErrorsBefore = Diags.getNumErrors();
446
447 LangOptions &LangOpts = *Invocation.getLangOpts();
448 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts();
449 TargetOptions &TargetOpts = Invocation.getTargetOpts();
450 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts();
451 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument;
452 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents;
453 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents;
454 CodeGenOpts.DisableFree = FrontendOpts.DisableFree;
455 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex;
456 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage();
457 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables;
458 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening;
459 LangOpts.CurrentModule = LangOpts.ModuleName;
460
461 llvm::Triple T(TargetOpts.Triple);
462 llvm::Triple::ArchType Arch = T.getArch();
463
464 CodeGenOpts.CodeModel = TargetOpts.CodeModel;
465
466 if (LangOpts.getExceptionHandling() !=
467 LangOptions::ExceptionHandlingKind::None &&
468 T.isWindowsMSVCEnvironment())
469 Diags.Report(diag::err_fe_invalid_exception_model)
470 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str();
471
472 if (LangOpts.AppleKext && !LangOpts.CPlusPlus)
473 Diags.Report(diag::warn_c_kext);
474
475 if (Args.hasArg(OPT_fconcepts_ts))
476 Diags.Report(diag::warn_fe_concepts_ts_flag);
477
478 if (LangOpts.NewAlignOverride &&
479 !llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) {
480 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ);
481 Diags.Report(diag::err_fe_invalid_alignment)
482 << A->getAsString(Args) << A->getValue();
483 LangOpts.NewAlignOverride = 0;
484 }
485
486 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host.
487 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost)
488 Diags.Report(diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device"
489 << "-fsycl-is-host";
490
491 if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus)
492 Diags.Report(diag::err_drv_argument_not_allowed_with)
493 << "-fgnu89-inline" << GetInputKindName(IK);
494
495 if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP)
496 Diags.Report(diag::warn_ignored_hip_only_option)
497 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args);
498
499 if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP)
500 Diags.Report(diag::warn_ignored_hip_only_option)
501 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args);
502
503 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0.
504 // This option should be deprecated for CL > 1.0 because
505 // this option was added for compatibility with OpenCL 1.0.
506 if (Args.getLastArg(OPT_cl_strict_aliasing) && LangOpts.OpenCLVersion > 100)
507 Diags.Report(diag::warn_option_invalid_ocl_version)
508 << LangOpts.getOpenCLVersionTuple().getAsString()
509 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args);
510
511 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) {
512 auto DefaultCC = LangOpts.getDefaultCallingConv();
513
514 bool emitError = (DefaultCC == LangOptions::DCC_FastCall ||
515 DefaultCC == LangOptions::DCC_StdCall) &&
516 Arch != llvm::Triple::x86;
517 emitError |= (DefaultCC == LangOptions::DCC_VectorCall ||
518 DefaultCC == LangOptions::DCC_RegCall) &&
519 !T.isX86();
520 if (emitError)
521 Diags.Report(diag::err_drv_argument_not_allowed_with)
522 << A->getSpelling() << T.getTriple();
523 }
524
525 if (!CodeGenOpts.ProfileRemappingFile.empty() && CodeGenOpts.LegacyPassManager)
526 Diags.Report(diag::err_drv_argument_only_allowed_with)
527 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args)
528 << "-fno-legacy-pass-manager";
529
530 return Diags.getNumErrors() == NumErrorsBefore;
531 }
532
533 //===----------------------------------------------------------------------===//
534 // Deserialization (from args)
535 //===----------------------------------------------------------------------===//
536
getOptimizationLevel(ArgList & Args,InputKind IK,DiagnosticsEngine & Diags)537 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK,
538 DiagnosticsEngine &Diags) {
539 unsigned DefaultOpt = llvm::CodeGenOpt::None;
540 if ((IK.getLanguage() == Language::OpenCL ||
541 IK.getLanguage() == Language::OpenCLCXX) &&
542 !Args.hasArg(OPT_cl_opt_disable))
543 DefaultOpt = llvm::CodeGenOpt::Default;
544
545 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
546 if (A->getOption().matches(options::OPT_O0))
547 return llvm::CodeGenOpt::None;
548
549 if (A->getOption().matches(options::OPT_Ofast))
550 return llvm::CodeGenOpt::Aggressive;
551
552 assert(A->getOption().matches(options::OPT_O));
553
554 StringRef S(A->getValue());
555 if (S == "s" || S == "z")
556 return llvm::CodeGenOpt::Default;
557
558 if (S == "g")
559 return llvm::CodeGenOpt::Less;
560
561 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags);
562 }
563
564 return DefaultOpt;
565 }
566
getOptimizationLevelSize(ArgList & Args)567 static unsigned getOptimizationLevelSize(ArgList &Args) {
568 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
569 if (A->getOption().matches(options::OPT_O)) {
570 switch (A->getValue()[0]) {
571 default:
572 return 0;
573 case 's':
574 return 1;
575 case 'z':
576 return 2;
577 }
578 }
579 }
580 return 0;
581 }
582
GenerateArg(SmallVectorImpl<const char * > & Args,llvm::opt::OptSpecifier OptSpecifier,CompilerInvocation::StringAllocator SA)583 static void GenerateArg(SmallVectorImpl<const char *> &Args,
584 llvm::opt::OptSpecifier OptSpecifier,
585 CompilerInvocation::StringAllocator SA) {
586 Option Opt = getDriverOptTable().getOption(OptSpecifier);
587 denormalizeSimpleFlag(Args, SA(Opt.getPrefix() + Opt.getName()), SA,
588 Option::OptionClass::FlagClass, 0);
589 }
590
GenerateArg(SmallVectorImpl<const char * > & Args,llvm::opt::OptSpecifier OptSpecifier,const Twine & Value,CompilerInvocation::StringAllocator SA)591 static void GenerateArg(SmallVectorImpl<const char *> &Args,
592 llvm::opt::OptSpecifier OptSpecifier,
593 const Twine &Value,
594 CompilerInvocation::StringAllocator SA) {
595 Option Opt = getDriverOptTable().getOption(OptSpecifier);
596 denormalizeString(Args, SA(Opt.getPrefix() + Opt.getName()), SA,
597 Opt.getKind(), 0, Value);
598 }
599
600 // Parse command line arguments into CompilerInvocation.
601 using ParseFn =
602 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>,
603 DiagnosticsEngine &, const char *)>;
604
605 // Generate command line arguments from CompilerInvocation.
606 using GenerateFn = llvm::function_ref<void(
607 CompilerInvocation &, SmallVectorImpl<const char *> &,
608 CompilerInvocation::StringAllocator)>;
609
610 // May perform round-trip of command line arguments. By default, the round-trip
611 // is enabled if CLANG_ROUND_TRIP_CC1_ARGS was defined during build. This can be
612 // overwritten at run-time via the "-round-trip-args" and "-no-round-trip-args"
613 // command line flags.
614 // During round-trip, the command line arguments are parsed into a dummy
615 // instance of CompilerInvocation which is used to generate the command line
616 // arguments again. The real CompilerInvocation instance is then created by
617 // parsing the generated arguments, not the original ones.
RoundTrip(ParseFn Parse,GenerateFn Generate,CompilerInvocation & RealInvocation,CompilerInvocation & DummyInvocation,ArrayRef<const char * > CommandLineArgs,DiagnosticsEngine & Diags,const char * Argv0)618 static bool RoundTrip(ParseFn Parse, GenerateFn Generate,
619 CompilerInvocation &RealInvocation,
620 CompilerInvocation &DummyInvocation,
621 ArrayRef<const char *> CommandLineArgs,
622 DiagnosticsEngine &Diags, const char *Argv0) {
623 // FIXME: Switch to '#ifndef NDEBUG' when possible.
624 #ifdef CLANG_ROUND_TRIP_CC1_ARGS
625 bool DoRoundTripDefault = true;
626 #else
627 bool DoRoundTripDefault = false;
628 #endif
629
630 bool DoRoundTrip = DoRoundTripDefault;
631 for (const auto *Arg : CommandLineArgs) {
632 if (Arg == StringRef("-round-trip-args"))
633 DoRoundTrip = true;
634 if (Arg == StringRef("-no-round-trip-args"))
635 DoRoundTrip = false;
636 }
637
638 // If round-trip was not requested, simply run the parser with the real
639 // invocation diagnostics.
640 if (!DoRoundTrip)
641 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0);
642
643 // Serializes quoted (and potentially escaped) arguments.
644 auto SerializeArgs = [](ArrayRef<const char *> Args) {
645 std::string Buffer;
646 llvm::raw_string_ostream OS(Buffer);
647 for (const char *Arg : Args) {
648 llvm::sys::printArg(OS, Arg, /*Quote=*/true);
649 OS << ' ';
650 }
651 OS.flush();
652 return Buffer;
653 };
654
655 // Setup a dummy DiagnosticsEngine.
656 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), new DiagnosticOptions());
657 DummyDiags.setClient(new TextDiagnosticBuffer());
658
659 // Run the first parse on the original arguments with the dummy invocation and
660 // diagnostics.
661 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) ||
662 DummyDiags.getNumWarnings() != 0) {
663 // If the first parse did not succeed, it must be user mistake (invalid
664 // command line arguments). We won't be able to generate arguments that
665 // would reproduce the same result. Let's fail again with the real
666 // invocation and diagnostics, so all side-effects of parsing are visible.
667 unsigned NumWarningsBefore = Diags.getNumWarnings();
668 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0);
669 if (!Success || Diags.getNumWarnings() != NumWarningsBefore)
670 return Success;
671
672 // Parse with original options and diagnostics succeeded even though it
673 // shouldn't have. Something is off.
674 Diags.Report(diag::err_cc1_round_trip_fail_then_ok);
675 Diags.Report(diag::note_cc1_round_trip_original)
676 << SerializeArgs(CommandLineArgs);
677 return false;
678 }
679
680 // Setup string allocator.
681 llvm::BumpPtrAllocator Alloc;
682 llvm::StringSaver StringPool(Alloc);
683 auto SA = [&StringPool](const Twine &Arg) {
684 return StringPool.save(Arg).data();
685 };
686
687 // Generate arguments from the dummy invocation. If Generate is the
688 // inverse of Parse, the newly generated arguments must have the same
689 // semantics as the original.
690 SmallVector<const char *> GeneratedArgs1;
691 Generate(DummyInvocation, GeneratedArgs1, SA);
692
693 // Run the second parse, now on the generated arguments, and with the real
694 // invocation and diagnostics. The result is what we will end up using for the
695 // rest of compilation, so if Generate is not inverse of Parse, something down
696 // the line will break.
697 bool Success2 = Parse(RealInvocation, GeneratedArgs1, Diags, Argv0);
698
699 // The first parse on original arguments succeeded, but second parse of
700 // generated arguments failed. Something must be wrong with the generator.
701 if (!Success2) {
702 Diags.Report(diag::err_cc1_round_trip_ok_then_fail);
703 Diags.Report(diag::note_cc1_round_trip_generated)
704 << 1 << SerializeArgs(GeneratedArgs1);
705 return false;
706 }
707
708 // Generate arguments again, this time from the options we will end up using
709 // for the rest of the compilation.
710 SmallVector<const char *> GeneratedArgs2;
711 Generate(RealInvocation, GeneratedArgs2, SA);
712
713 // Compares two lists of generated arguments.
714 auto Equal = [](const ArrayRef<const char *> A,
715 const ArrayRef<const char *> B) {
716 return std::equal(A.begin(), A.end(), B.begin(), B.end(),
717 [](const char *AElem, const char *BElem) {
718 return StringRef(AElem) == StringRef(BElem);
719 });
720 };
721
722 // If we generated different arguments from what we assume are two
723 // semantically equivalent CompilerInvocations, the Generate function may
724 // be non-deterministic.
725 if (!Equal(GeneratedArgs1, GeneratedArgs2)) {
726 Diags.Report(diag::err_cc1_round_trip_mismatch);
727 Diags.Report(diag::note_cc1_round_trip_generated)
728 << 1 << SerializeArgs(GeneratedArgs1);
729 Diags.Report(diag::note_cc1_round_trip_generated)
730 << 2 << SerializeArgs(GeneratedArgs2);
731 return false;
732 }
733
734 Diags.Report(diag::remark_cc1_round_trip_generated)
735 << 1 << SerializeArgs(GeneratedArgs1);
736 Diags.Report(diag::remark_cc1_round_trip_generated)
737 << 2 << SerializeArgs(GeneratedArgs2);
738
739 return Success2;
740 }
741
addDiagnosticArgs(ArgList & Args,OptSpecifier Group,OptSpecifier GroupWithValue,std::vector<std::string> & Diagnostics)742 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group,
743 OptSpecifier GroupWithValue,
744 std::vector<std::string> &Diagnostics) {
745 for (auto *A : Args.filtered(Group)) {
746 if (A->getOption().getKind() == Option::FlagClass) {
747 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add
748 // its name (minus the "W" or "R" at the beginning) to the diagnostics.
749 Diagnostics.push_back(
750 std::string(A->getOption().getName().drop_front(1)));
751 } else if (A->getOption().matches(GroupWithValue)) {
752 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic
753 // group. Add only the group name to the diagnostics.
754 Diagnostics.push_back(
755 std::string(A->getOption().getName().drop_front(1).rtrim("=-")));
756 } else {
757 // Otherwise, add its value (for OPT_W_Joined and similar).
758 Diagnostics.push_back(A->getValue());
759 }
760 }
761 }
762
763 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr,
764 // it won't verify the input.
765 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts,
766 DiagnosticsEngine *Diags);
767
getAllNoBuiltinFuncValues(ArgList & Args,std::vector<std::string> & Funcs)768 static void getAllNoBuiltinFuncValues(ArgList &Args,
769 std::vector<std::string> &Funcs) {
770 std::vector<std::string> Values = Args.getAllArgValues(OPT_fno_builtin_);
771 auto BuiltinEnd = llvm::partition(Values, [](const std::string FuncName) {
772 return Builtin::Context::isBuiltinFunc(FuncName);
773 });
774 Funcs.insert(Funcs.end(), Values.begin(), BuiltinEnd);
775 }
776
GenerateAnalyzerArgs(AnalyzerOptions & Opts,SmallVectorImpl<const char * > & Args,CompilerInvocation::StringAllocator SA)777 static void GenerateAnalyzerArgs(AnalyzerOptions &Opts,
778 SmallVectorImpl<const char *> &Args,
779 CompilerInvocation::StringAllocator SA) {
780 const AnalyzerOptions *AnalyzerOpts = &Opts;
781
782 #define ANALYZER_OPTION_WITH_MARSHALLING( \
783 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
784 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
785 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
786 MERGER, EXTRACTOR, TABLE_INDEX) \
787 GENERATE_OPTION_WITH_MARSHALLING( \
788 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \
789 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX)
790 #include "clang/Driver/Options.inc"
791 #undef ANALYZER_OPTION_WITH_MARSHALLING
792
793 if (Opts.AnalysisStoreOpt != RegionStoreModel) {
794 switch (Opts.AnalysisStoreOpt) {
795 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
796 case NAME##Model: \
797 GenerateArg(Args, OPT_analyzer_store, CMDFLAG, SA); \
798 break;
799 #include "clang/StaticAnalyzer/Core/Analyses.def"
800 default:
801 llvm_unreachable("Tried to generate unknown analysis store.");
802 }
803 }
804
805 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) {
806 switch (Opts.AnalysisConstraintsOpt) {
807 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
808 case NAME##Model: \
809 GenerateArg(Args, OPT_analyzer_constraints, CMDFLAG, SA); \
810 break;
811 #include "clang/StaticAnalyzer/Core/Analyses.def"
812 default:
813 llvm_unreachable("Tried to generate unknown analysis constraint.");
814 }
815 }
816
817 if (Opts.AnalysisDiagOpt != PD_HTML) {
818 switch (Opts.AnalysisDiagOpt) {
819 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \
820 case PD_##NAME: \
821 GenerateArg(Args, OPT_analyzer_output, CMDFLAG, SA); \
822 break;
823 #include "clang/StaticAnalyzer/Core/Analyses.def"
824 default:
825 llvm_unreachable("Tried to generate unknown analysis diagnostic client.");
826 }
827 }
828
829 if (Opts.AnalysisPurgeOpt != PurgeStmt) {
830 switch (Opts.AnalysisPurgeOpt) {
831 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \
832 case NAME: \
833 GenerateArg(Args, OPT_analyzer_purge, CMDFLAG, SA); \
834 break;
835 #include "clang/StaticAnalyzer/Core/Analyses.def"
836 default:
837 llvm_unreachable("Tried to generate unknown analysis purge mode.");
838 }
839 }
840
841 if (Opts.InliningMode != NoRedundancy) {
842 switch (Opts.InliningMode) {
843 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \
844 case NAME: \
845 GenerateArg(Args, OPT_analyzer_inlining_mode, CMDFLAG, SA); \
846 break;
847 #include "clang/StaticAnalyzer/Core/Analyses.def"
848 default:
849 llvm_unreachable("Tried to generate unknown analysis inlining mode.");
850 }
851 }
852
853 for (const auto &CP : Opts.CheckersAndPackages) {
854 OptSpecifier Opt =
855 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker;
856 GenerateArg(Args, Opt, CP.first, SA);
857 }
858
859 AnalyzerOptions ConfigOpts;
860 parseAnalyzerConfigs(ConfigOpts, nullptr);
861
862 for (const auto &C : Opts.Config) {
863 // Don't generate anything that came from parseAnalyzerConfigs. It would be
864 // redundant and may not be valid on the command line.
865 auto Entry = ConfigOpts.Config.find(C.getKey());
866 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == C.getValue())
867 continue;
868
869 GenerateArg(Args, OPT_analyzer_config, C.getKey() + "=" + C.getValue(), SA);
870 }
871
872 // Nothing to generate for FullCompilerInvocation.
873 }
874
ParseAnalyzerArgs(AnalyzerOptions & Opts,ArgList & Args,DiagnosticsEngine & Diags)875 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
876 DiagnosticsEngine &Diags) {
877 unsigned NumErrorsBefore = Diags.getNumErrors();
878
879 AnalyzerOptions *AnalyzerOpts = &Opts;
880
881 #define ANALYZER_OPTION_WITH_MARSHALLING( \
882 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
883 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
884 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
885 MERGER, EXTRACTOR, TABLE_INDEX) \
886 PARSE_OPTION_WITH_MARSHALLING( \
887 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \
888 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX)
889 #include "clang/Driver/Options.inc"
890 #undef ANALYZER_OPTION_WITH_MARSHALLING
891
892 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) {
893 StringRef Name = A->getValue();
894 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name)
895 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
896 .Case(CMDFLAG, NAME##Model)
897 #include "clang/StaticAnalyzer/Core/Analyses.def"
898 .Default(NumStores);
899 if (Value == NumStores) {
900 Diags.Report(diag::err_drv_invalid_value)
901 << A->getAsString(Args) << Name;
902 } else {
903 Opts.AnalysisStoreOpt = Value;
904 }
905 }
906
907 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) {
908 StringRef Name = A->getValue();
909 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
910 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
911 .Case(CMDFLAG, NAME##Model)
912 #include "clang/StaticAnalyzer/Core/Analyses.def"
913 .Default(NumConstraints);
914 if (Value == NumConstraints) {
915 Diags.Report(diag::err_drv_invalid_value)
916 << A->getAsString(Args) << Name;
917 } else {
918 Opts.AnalysisConstraintsOpt = Value;
919 }
920 }
921
922 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) {
923 StringRef Name = A->getValue();
924 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
925 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \
926 .Case(CMDFLAG, PD_##NAME)
927 #include "clang/StaticAnalyzer/Core/Analyses.def"
928 .Default(NUM_ANALYSIS_DIAG_CLIENTS);
929 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) {
930 Diags.Report(diag::err_drv_invalid_value)
931 << A->getAsString(Args) << Name;
932 } else {
933 Opts.AnalysisDiagOpt = Value;
934 }
935 }
936
937 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) {
938 StringRef Name = A->getValue();
939 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name)
940 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \
941 .Case(CMDFLAG, NAME)
942 #include "clang/StaticAnalyzer/Core/Analyses.def"
943 .Default(NumPurgeModes);
944 if (Value == NumPurgeModes) {
945 Diags.Report(diag::err_drv_invalid_value)
946 << A->getAsString(Args) << Name;
947 } else {
948 Opts.AnalysisPurgeOpt = Value;
949 }
950 }
951
952 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) {
953 StringRef Name = A->getValue();
954 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name)
955 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \
956 .Case(CMDFLAG, NAME)
957 #include "clang/StaticAnalyzer/Core/Analyses.def"
958 .Default(NumInliningModes);
959 if (Value == NumInliningModes) {
960 Diags.Report(diag::err_drv_invalid_value)
961 << A->getAsString(Args) << Name;
962 } else {
963 Opts.InliningMode = Value;
964 }
965 }
966
967 Opts.CheckersAndPackages.clear();
968 for (const Arg *A :
969 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) {
970 A->claim();
971 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker;
972 // We can have a list of comma separated checker names, e.g:
973 // '-analyzer-checker=cocoa,unix'
974 StringRef CheckerAndPackageList = A->getValue();
975 SmallVector<StringRef, 16> CheckersAndPackages;
976 CheckerAndPackageList.split(CheckersAndPackages, ",");
977 for (const StringRef &CheckerOrPackage : CheckersAndPackages)
978 Opts.CheckersAndPackages.emplace_back(std::string(CheckerOrPackage),
979 IsEnabled);
980 }
981
982 // Go through the analyzer configuration options.
983 for (const auto *A : Args.filtered(OPT_analyzer_config)) {
984
985 // We can have a list of comma separated config names, e.g:
986 // '-analyzer-config key1=val1,key2=val2'
987 StringRef configList = A->getValue();
988 SmallVector<StringRef, 4> configVals;
989 configList.split(configVals, ",");
990 for (const auto &configVal : configVals) {
991 StringRef key, val;
992 std::tie(key, val) = configVal.split("=");
993 if (val.empty()) {
994 Diags.Report(SourceLocation(),
995 diag::err_analyzer_config_no_value) << configVal;
996 break;
997 }
998 if (val.find('=') != StringRef::npos) {
999 Diags.Report(SourceLocation(),
1000 diag::err_analyzer_config_multiple_values)
1001 << configVal;
1002 break;
1003 }
1004
1005 // TODO: Check checker options too, possibly in CheckerRegistry.
1006 // Leave unknown non-checker configs unclaimed.
1007 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) {
1008 if (Opts.ShouldEmitErrorsOnInvalidConfigValue)
1009 Diags.Report(diag::err_analyzer_config_unknown) << key;
1010 continue;
1011 }
1012
1013 A->claim();
1014 Opts.Config[key] = std::string(val);
1015 }
1016 }
1017
1018 if (Opts.ShouldEmitErrorsOnInvalidConfigValue)
1019 parseAnalyzerConfigs(Opts, &Diags);
1020 else
1021 parseAnalyzerConfigs(Opts, nullptr);
1022
1023 llvm::raw_string_ostream os(Opts.FullCompilerInvocation);
1024 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) {
1025 if (i != 0)
1026 os << " ";
1027 os << Args.getArgString(i);
1028 }
1029 os.flush();
1030
1031 return Diags.getNumErrors() == NumErrorsBefore;
1032 }
1033
getStringOption(AnalyzerOptions::ConfigTable & Config,StringRef OptionName,StringRef DefaultVal)1034 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config,
1035 StringRef OptionName, StringRef DefaultVal) {
1036 return Config.insert({OptionName, std::string(DefaultVal)}).first->second;
1037 }
1038
initOption(AnalyzerOptions::ConfigTable & Config,DiagnosticsEngine * Diags,StringRef & OptionField,StringRef Name,StringRef DefaultVal)1039 static void initOption(AnalyzerOptions::ConfigTable &Config,
1040 DiagnosticsEngine *Diags,
1041 StringRef &OptionField, StringRef Name,
1042 StringRef DefaultVal) {
1043 // String options may be known to invalid (e.g. if the expected string is a
1044 // file name, but the file does not exist), those will have to be checked in
1045 // parseConfigs.
1046 OptionField = getStringOption(Config, Name, DefaultVal);
1047 }
1048
initOption(AnalyzerOptions::ConfigTable & Config,DiagnosticsEngine * Diags,bool & OptionField,StringRef Name,bool DefaultVal)1049 static void initOption(AnalyzerOptions::ConfigTable &Config,
1050 DiagnosticsEngine *Diags,
1051 bool &OptionField, StringRef Name, bool DefaultVal) {
1052 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>(
1053 getStringOption(Config, Name, (DefaultVal ? "true" : "false")))
1054 .Case("true", true)
1055 .Case("false", false)
1056 .Default(None);
1057
1058 if (!PossiblyInvalidVal) {
1059 if (Diags)
1060 Diags->Report(diag::err_analyzer_config_invalid_input)
1061 << Name << "a boolean";
1062 else
1063 OptionField = DefaultVal;
1064 } else
1065 OptionField = PossiblyInvalidVal.getValue();
1066 }
1067
initOption(AnalyzerOptions::ConfigTable & Config,DiagnosticsEngine * Diags,unsigned & OptionField,StringRef Name,unsigned DefaultVal)1068 static void initOption(AnalyzerOptions::ConfigTable &Config,
1069 DiagnosticsEngine *Diags,
1070 unsigned &OptionField, StringRef Name,
1071 unsigned DefaultVal) {
1072
1073 OptionField = DefaultVal;
1074 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal))
1075 .getAsInteger(0, OptionField);
1076 if (Diags && HasFailed)
1077 Diags->Report(diag::err_analyzer_config_invalid_input)
1078 << Name << "an unsigned";
1079 }
1080
parseAnalyzerConfigs(AnalyzerOptions & AnOpts,DiagnosticsEngine * Diags)1081 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts,
1082 DiagnosticsEngine *Diags) {
1083 // TODO: There's no need to store the entire configtable, it'd be plenty
1084 // enough tostore checker options.
1085
1086 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \
1087 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL);
1088
1089 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \
1090 SHALLOW_VAL, DEEP_VAL) \
1091 switch (AnOpts.getUserMode()) { \
1092 case UMK_Shallow: \
1093 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \
1094 break; \
1095 case UMK_Deep: \
1096 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \
1097 break; \
1098 } \
1099
1100 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def"
1101 #undef ANALYZER_OPTION
1102 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE
1103
1104 // At this point, AnalyzerOptions is configured. Let's validate some options.
1105
1106 // FIXME: Here we try to validate the silenced checkers or packages are valid.
1107 // The current approach only validates the registered checkers which does not
1108 // contain the runtime enabled checkers and optimally we would validate both.
1109 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) {
1110 std::vector<StringRef> Checkers =
1111 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true);
1112 std::vector<StringRef> Packages =
1113 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true);
1114
1115 SmallVector<StringRef, 16> CheckersAndPackages;
1116 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";");
1117
1118 for (const StringRef &CheckerOrPackage : CheckersAndPackages) {
1119 if (Diags) {
1120 bool IsChecker = CheckerOrPackage.contains('.');
1121 bool IsValidName =
1122 IsChecker
1123 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end()
1124 : llvm::find(Packages, CheckerOrPackage) != Packages.end();
1125
1126 if (!IsValidName)
1127 Diags->Report(diag::err_unknown_analyzer_checker_or_package)
1128 << CheckerOrPackage;
1129 }
1130
1131 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage);
1132 }
1133 }
1134
1135 if (!Diags)
1136 return;
1137
1138 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions)
1139 Diags->Report(diag::err_analyzer_config_invalid_input)
1140 << "track-conditions-debug" << "'track-conditions' to also be enabled";
1141
1142 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir))
1143 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir"
1144 << "a filename";
1145
1146 if (!AnOpts.ModelPath.empty() &&
1147 !llvm::sys::fs::is_directory(AnOpts.ModelPath))
1148 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path"
1149 << "a filename";
1150 }
1151
1152 /// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`.
1153 static void
GenerateOptimizationRemark(SmallVectorImpl<const char * > & Args,CompilerInvocation::StringAllocator SA,OptSpecifier OptEQ,StringRef Name,const CodeGenOptions::OptRemark & Remark)1154 GenerateOptimizationRemark(SmallVectorImpl<const char *> &Args,
1155 CompilerInvocation::StringAllocator SA,
1156 OptSpecifier OptEQ, StringRef Name,
1157 const CodeGenOptions::OptRemark &Remark) {
1158 if (Remark.hasValidPattern()) {
1159 GenerateArg(Args, OptEQ, Remark.Pattern, SA);
1160 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) {
1161 GenerateArg(Args, OPT_R_Joined, Name, SA);
1162 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) {
1163 GenerateArg(Args, OPT_R_Joined, StringRef("no-") + Name, SA);
1164 }
1165 }
1166
1167 /// Parse a remark command line argument. It may be missing, disabled/enabled by
1168 /// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'.
1169 /// On top of that, it can be disabled/enabled globally by '-R[no-]everything'.
1170 static CodeGenOptions::OptRemark
ParseOptimizationRemark(DiagnosticsEngine & Diags,ArgList & Args,OptSpecifier OptEQ,StringRef Name)1171 ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args,
1172 OptSpecifier OptEQ, StringRef Name) {
1173 CodeGenOptions::OptRemark Result;
1174
1175 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A) {
1176 Result.Pattern = A->getValue();
1177
1178 std::string RegexError;
1179 Result.Regex = std::make_shared<llvm::Regex>(Result.Pattern);
1180 if (!Result.Regex->isValid(RegexError)) {
1181 Diags.Report(diag::err_drv_optimization_remark_pattern)
1182 << RegexError << A->getAsString(Args);
1183 return false;
1184 }
1185
1186 return true;
1187 };
1188
1189 for (Arg *A : Args) {
1190 if (A->getOption().matches(OPT_R_Joined)) {
1191 StringRef Value = A->getValue();
1192
1193 if (Value == Name)
1194 Result.Kind = CodeGenOptions::RK_Enabled;
1195 else if (Value == "everything")
1196 Result.Kind = CodeGenOptions::RK_EnabledEverything;
1197 else if (Value.split('-') == std::make_pair(StringRef("no"), Name))
1198 Result.Kind = CodeGenOptions::RK_Disabled;
1199 else if (Value == "no-everything")
1200 Result.Kind = CodeGenOptions::RK_DisabledEverything;
1201 } else if (A->getOption().matches(OptEQ)) {
1202 Result.Kind = CodeGenOptions::RK_WithPattern;
1203 if (!InitializeResultPattern(A))
1204 return CodeGenOptions::OptRemark();
1205 }
1206 }
1207
1208 if (Result.Kind == CodeGenOptions::RK_Disabled ||
1209 Result.Kind == CodeGenOptions::RK_DisabledEverything) {
1210 Result.Pattern = "";
1211 Result.Regex = nullptr;
1212 }
1213
1214 return Result;
1215 }
1216
parseDiagnosticLevelMask(StringRef FlagName,const std::vector<std::string> & Levels,DiagnosticsEngine & Diags,DiagnosticLevelMask & M)1217 static bool parseDiagnosticLevelMask(StringRef FlagName,
1218 const std::vector<std::string> &Levels,
1219 DiagnosticsEngine &Diags,
1220 DiagnosticLevelMask &M) {
1221 bool Success = true;
1222 for (const auto &Level : Levels) {
1223 DiagnosticLevelMask const PM =
1224 llvm::StringSwitch<DiagnosticLevelMask>(Level)
1225 .Case("note", DiagnosticLevelMask::Note)
1226 .Case("remark", DiagnosticLevelMask::Remark)
1227 .Case("warning", DiagnosticLevelMask::Warning)
1228 .Case("error", DiagnosticLevelMask::Error)
1229 .Default(DiagnosticLevelMask::None);
1230 if (PM == DiagnosticLevelMask::None) {
1231 Success = false;
1232 Diags.Report(diag::err_drv_invalid_value) << FlagName << Level;
1233 }
1234 M = M | PM;
1235 }
1236 return Success;
1237 }
1238
parseSanitizerKinds(StringRef FlagName,const std::vector<std::string> & Sanitizers,DiagnosticsEngine & Diags,SanitizerSet & S)1239 static void parseSanitizerKinds(StringRef FlagName,
1240 const std::vector<std::string> &Sanitizers,
1241 DiagnosticsEngine &Diags, SanitizerSet &S) {
1242 for (const auto &Sanitizer : Sanitizers) {
1243 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false);
1244 if (K == SanitizerMask())
1245 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer;
1246 else
1247 S.set(K, true);
1248 }
1249 }
1250
serializeSanitizerKinds(SanitizerSet S)1251 static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) {
1252 SmallVector<StringRef, 4> Values;
1253 serializeSanitizerSet(S, Values);
1254 return Values;
1255 }
1256
parseXRayInstrumentationBundle(StringRef FlagName,StringRef Bundle,ArgList & Args,DiagnosticsEngine & D,XRayInstrSet & S)1257 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle,
1258 ArgList &Args, DiagnosticsEngine &D,
1259 XRayInstrSet &S) {
1260 llvm::SmallVector<StringRef, 2> BundleParts;
1261 llvm::SplitString(Bundle, BundleParts, ",");
1262 for (const auto &B : BundleParts) {
1263 auto Mask = parseXRayInstrValue(B);
1264 if (Mask == XRayInstrKind::None)
1265 if (B != "none")
1266 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle;
1267 else
1268 S.Mask = Mask;
1269 else if (Mask == XRayInstrKind::All)
1270 S.Mask = Mask;
1271 else
1272 S.set(Mask, true);
1273 }
1274 }
1275
serializeXRayInstrumentationBundle(const XRayInstrSet & S)1276 static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) {
1277 llvm::SmallVector<StringRef, 2> BundleParts;
1278 serializeXRayInstrValue(S, BundleParts);
1279 std::string Buffer;
1280 llvm::raw_string_ostream OS(Buffer);
1281 llvm::interleave(BundleParts, OS, [&OS](StringRef Part) { OS << Part; }, ",");
1282 return OS.str();
1283 }
1284
1285 // Set the profile kind using fprofile-instrument-use-path.
setPGOUseInstrumentor(CodeGenOptions & Opts,const Twine & ProfileName)1286 static void setPGOUseInstrumentor(CodeGenOptions &Opts,
1287 const Twine &ProfileName) {
1288 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName);
1289 // In error, return silently and let Clang PGOUse report the error message.
1290 if (auto E = ReaderOrErr.takeError()) {
1291 llvm::consumeError(std::move(E));
1292 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr);
1293 return;
1294 }
1295 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader =
1296 std::move(ReaderOrErr.get());
1297 if (PGOReader->isIRLevelProfile()) {
1298 if (PGOReader->hasCSIRLevelProfile())
1299 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr);
1300 else
1301 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr);
1302 } else
1303 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr);
1304 }
1305
GenerateCodeGenArgs(const CodeGenOptions & Opts,SmallVectorImpl<const char * > & Args,StringAllocator SA,const llvm::Triple & T,const std::string & OutputFile,const LangOptions * LangOpts)1306 void CompilerInvocation::GenerateCodeGenArgs(
1307 const CodeGenOptions &Opts, SmallVectorImpl<const char *> &Args,
1308 StringAllocator SA, const llvm::Triple &T, const std::string &OutputFile,
1309 const LangOptions *LangOpts) {
1310 const CodeGenOptions &CodeGenOpts = Opts;
1311
1312 if (Opts.OptimizationLevel == 0)
1313 GenerateArg(Args, OPT_O0, SA);
1314 else
1315 GenerateArg(Args, OPT_O, Twine(Opts.OptimizationLevel), SA);
1316
1317 #define CODEGEN_OPTION_WITH_MARSHALLING( \
1318 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
1319 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
1320 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
1321 MERGER, EXTRACTOR, TABLE_INDEX) \
1322 GENERATE_OPTION_WITH_MARSHALLING( \
1323 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \
1324 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX)
1325 #include "clang/Driver/Options.inc"
1326 #undef CODEGEN_OPTION_WITH_MARSHALLING
1327
1328 if (Opts.OptimizationLevel > 0) {
1329 if (Opts.Inlining == CodeGenOptions::NormalInlining)
1330 GenerateArg(Args, OPT_finline_functions, SA);
1331 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining)
1332 GenerateArg(Args, OPT_finline_hint_functions, SA);
1333 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining)
1334 GenerateArg(Args, OPT_fno_inline, SA);
1335 }
1336
1337 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0)
1338 GenerateArg(Args, OPT_fdirect_access_external_data, SA);
1339 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0)
1340 GenerateArg(Args, OPT_fno_direct_access_external_data, SA);
1341
1342 Optional<StringRef> DebugInfoVal;
1343 switch (Opts.DebugInfo) {
1344 case codegenoptions::DebugLineTablesOnly:
1345 DebugInfoVal = "line-tables-only";
1346 break;
1347 case codegenoptions::DebugDirectivesOnly:
1348 DebugInfoVal = "line-directives-only";
1349 break;
1350 case codegenoptions::DebugInfoConstructor:
1351 DebugInfoVal = "constructor";
1352 break;
1353 case codegenoptions::LimitedDebugInfo:
1354 DebugInfoVal = "limited";
1355 break;
1356 case codegenoptions::FullDebugInfo:
1357 DebugInfoVal = "standalone";
1358 break;
1359 case codegenoptions::UnusedTypeInfo:
1360 DebugInfoVal = "unused-types";
1361 break;
1362 case codegenoptions::NoDebugInfo: // default value
1363 DebugInfoVal = None;
1364 break;
1365 case codegenoptions::LocTrackingOnly: // implied value
1366 DebugInfoVal = None;
1367 break;
1368 }
1369 if (DebugInfoVal)
1370 GenerateArg(Args, OPT_debug_info_kind_EQ, *DebugInfoVal, SA);
1371
1372 for (const auto &Prefix : Opts.DebugPrefixMap)
1373 GenerateArg(Args, OPT_fdebug_prefix_map_EQ,
1374 Prefix.first + "=" + Prefix.second, SA);
1375
1376 for (const auto &Prefix : Opts.CoveragePrefixMap)
1377 GenerateArg(Args, OPT_fcoverage_prefix_map_EQ,
1378 Prefix.first + "=" + Prefix.second, SA);
1379
1380 if (Opts.NewStructPathTBAA)
1381 GenerateArg(Args, OPT_new_struct_path_tbaa, SA);
1382
1383 if (Opts.OptimizeSize == 1)
1384 GenerateArg(Args, OPT_O, "s", SA);
1385 else if (Opts.OptimizeSize == 2)
1386 GenerateArg(Args, OPT_O, "z", SA);
1387
1388 // SimplifyLibCalls is set only in the absence of -fno-builtin and
1389 // -ffreestanding. We'll consider that when generating them.
1390
1391 // NoBuiltinFuncs are generated by LangOptions.
1392
1393 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1)
1394 GenerateArg(Args, OPT_funroll_loops, SA);
1395 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1)
1396 GenerateArg(Args, OPT_fno_unroll_loops, SA);
1397
1398 if (!Opts.BinutilsVersion.empty())
1399 GenerateArg(Args, OPT_fbinutils_version_EQ, Opts.BinutilsVersion, SA);
1400
1401 if (Opts.DebugNameTable ==
1402 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU))
1403 GenerateArg(Args, OPT_ggnu_pubnames, SA);
1404 else if (Opts.DebugNameTable ==
1405 static_cast<unsigned>(
1406 llvm::DICompileUnit::DebugNameTableKind::Default))
1407 GenerateArg(Args, OPT_gpubnames, SA);
1408
1409 // ProfileInstrumentUsePath is marshalled automatically, no need to generate
1410 // it or PGOUseInstrumentor.
1411
1412 if (Opts.TimePasses) {
1413 if (Opts.TimePassesPerRun)
1414 GenerateArg(Args, OPT_ftime_report_EQ, "per-pass-run", SA);
1415 else
1416 GenerateArg(Args, OPT_ftime_report, SA);
1417 }
1418
1419 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO)
1420 GenerateArg(Args, OPT_flto, SA);
1421
1422 if (Opts.PrepareForThinLTO)
1423 GenerateArg(Args, OPT_flto_EQ, "thin", SA);
1424
1425 if (!Opts.ThinLTOIndexFile.empty())
1426 GenerateArg(Args, OPT_fthinlto_index_EQ, Opts.ThinLTOIndexFile, SA);
1427
1428 if (Opts.SaveTempsFilePrefix == OutputFile)
1429 GenerateArg(Args, OPT_save_temps_EQ, "obj", SA);
1430
1431 StringRef MemProfileBasename("memprof.profraw");
1432 if (!Opts.MemoryProfileOutput.empty()) {
1433 if (Opts.MemoryProfileOutput == MemProfileBasename) {
1434 GenerateArg(Args, OPT_fmemory_profile, SA);
1435 } else {
1436 size_t ArgLength =
1437 Opts.MemoryProfileOutput.size() - MemProfileBasename.size();
1438 GenerateArg(Args, OPT_fmemory_profile_EQ,
1439 Opts.MemoryProfileOutput.substr(0, ArgLength), SA);
1440 }
1441 }
1442
1443 if (memcmp(Opts.CoverageVersion, "408*", 4) != 0)
1444 GenerateArg(Args, OPT_coverage_version_EQ,
1445 StringRef(Opts.CoverageVersion, 4), SA);
1446
1447 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely
1448 // '-fembed_bitcode', which does not map to any CompilerInvocation field and
1449 // won't be generated.)
1450
1451 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) {
1452 std::string InstrBundle =
1453 serializeXRayInstrumentationBundle(Opts.XRayInstrumentationBundle);
1454 if (!InstrBundle.empty())
1455 GenerateArg(Args, OPT_fxray_instrumentation_bundle, InstrBundle, SA);
1456 }
1457
1458 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch)
1459 GenerateArg(Args, OPT_fcf_protection_EQ, "full", SA);
1460 else if (Opts.CFProtectionReturn)
1461 GenerateArg(Args, OPT_fcf_protection_EQ, "return", SA);
1462 else if (Opts.CFProtectionBranch)
1463 GenerateArg(Args, OPT_fcf_protection_EQ, "branch", SA);
1464
1465 for (const auto &F : Opts.LinkBitcodeFiles) {
1466 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded &&
1467 F.PropagateAttrs && F.Internalize;
1468 GenerateArg(Args,
1469 Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file,
1470 F.Filename, SA);
1471 }
1472
1473 // TODO: Consider removing marshalling annotations from f[no_]emulated_tls.
1474 // That would make it easy to generate the option only **once** if it was
1475 // explicitly set to non-default value.
1476 if (Opts.ExplicitEmulatedTLS) {
1477 GenerateArg(
1478 Args, Opts.EmulatedTLS ? OPT_femulated_tls : OPT_fno_emulated_tls, SA);
1479 }
1480
1481 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE())
1482 GenerateArg(Args, OPT_fdenormal_fp_math_EQ, Opts.FPDenormalMode.str(), SA);
1483
1484 if (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE())
1485 GenerateArg(Args, OPT_fdenormal_fp_math_f32_EQ, Opts.FP32DenormalMode.str(),
1486 SA);
1487
1488 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) {
1489 OptSpecifier Opt =
1490 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return;
1491 GenerateArg(Args, Opt, SA);
1492 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) {
1493 OptSpecifier Opt =
1494 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return;
1495 GenerateArg(Args, Opt, SA);
1496 }
1497
1498 if (Opts.EnableAIXExtendedAltivecABI)
1499 GenerateArg(Args, OPT_mabi_EQ_vec_extabi, SA);
1500
1501 if (!Opts.OptRecordPasses.empty())
1502 GenerateArg(Args, OPT_opt_record_passes, Opts.OptRecordPasses, SA);
1503
1504 if (!Opts.OptRecordFormat.empty())
1505 GenerateArg(Args, OPT_opt_record_format, Opts.OptRecordFormat, SA);
1506
1507 GenerateOptimizationRemark(Args, SA, OPT_Rpass_EQ, "pass",
1508 Opts.OptimizationRemark);
1509
1510 GenerateOptimizationRemark(Args, SA, OPT_Rpass_missed_EQ, "pass-missed",
1511 Opts.OptimizationRemarkMissed);
1512
1513 GenerateOptimizationRemark(Args, SA, OPT_Rpass_analysis_EQ, "pass-analysis",
1514 Opts.OptimizationRemarkAnalysis);
1515
1516 GenerateArg(Args, OPT_fdiagnostics_hotness_threshold_EQ,
1517 Opts.DiagnosticsHotnessThreshold
1518 ? Twine(*Opts.DiagnosticsHotnessThreshold)
1519 : "auto",
1520 SA);
1521
1522 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeRecover))
1523 GenerateArg(Args, OPT_fsanitize_recover_EQ, Sanitizer, SA);
1524
1525 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.SanitizeTrap))
1526 GenerateArg(Args, OPT_fsanitize_trap_EQ, Sanitizer, SA);
1527
1528 if (!Opts.EmitVersionIdentMetadata)
1529 GenerateArg(Args, OPT_Qn, SA);
1530
1531 switch (Opts.FiniteLoops) {
1532 case CodeGenOptions::FiniteLoopsKind::Language:
1533 break;
1534 case CodeGenOptions::FiniteLoopsKind::Always:
1535 GenerateArg(Args, OPT_ffinite_loops, SA);
1536 break;
1537 case CodeGenOptions::FiniteLoopsKind::Never:
1538 GenerateArg(Args, OPT_fno_finite_loops, SA);
1539 break;
1540 }
1541 }
1542
ParseCodeGenArgs(CodeGenOptions & Opts,ArgList & Args,InputKind IK,DiagnosticsEngine & Diags,const llvm::Triple & T,const std::string & OutputFile,const LangOptions & LangOptsRef)1543 bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args,
1544 InputKind IK,
1545 DiagnosticsEngine &Diags,
1546 const llvm::Triple &T,
1547 const std::string &OutputFile,
1548 const LangOptions &LangOptsRef) {
1549 unsigned NumErrorsBefore = Diags.getNumErrors();
1550
1551 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags);
1552 // TODO: This could be done in Driver
1553 unsigned MaxOptLevel = 3;
1554 if (OptimizationLevel > MaxOptLevel) {
1555 // If the optimization level is not supported, fall back on the default
1556 // optimization
1557 Diags.Report(diag::warn_drv_optimization_value)
1558 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel;
1559 OptimizationLevel = MaxOptLevel;
1560 }
1561 Opts.OptimizationLevel = OptimizationLevel;
1562
1563 // The key paths of codegen options defined in Options.td start with
1564 // "CodeGenOpts.". Let's provide the expected variable name and type.
1565 CodeGenOptions &CodeGenOpts = Opts;
1566 // Some codegen options depend on language options. Let's provide the expected
1567 // variable name and type.
1568 const LangOptions *LangOpts = &LangOptsRef;
1569
1570 #define CODEGEN_OPTION_WITH_MARSHALLING( \
1571 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
1572 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
1573 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
1574 MERGER, EXTRACTOR, TABLE_INDEX) \
1575 PARSE_OPTION_WITH_MARSHALLING( \
1576 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \
1577 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX)
1578 #include "clang/Driver/Options.inc"
1579 #undef CODEGEN_OPTION_WITH_MARSHALLING
1580
1581 // At O0 we want to fully disable inlining outside of cases marked with
1582 // 'alwaysinline' that are required for correctness.
1583 Opts.setInlining((Opts.OptimizationLevel == 0)
1584 ? CodeGenOptions::OnlyAlwaysInlining
1585 : CodeGenOptions::NormalInlining);
1586 // Explicit inlining flags can disable some or all inlining even at
1587 // optimization levels above zero.
1588 if (Arg *InlineArg = Args.getLastArg(
1589 options::OPT_finline_functions, options::OPT_finline_hint_functions,
1590 options::OPT_fno_inline_functions, options::OPT_fno_inline)) {
1591 if (Opts.OptimizationLevel > 0) {
1592 const Option &InlineOpt = InlineArg->getOption();
1593 if (InlineOpt.matches(options::OPT_finline_functions))
1594 Opts.setInlining(CodeGenOptions::NormalInlining);
1595 else if (InlineOpt.matches(options::OPT_finline_hint_functions))
1596 Opts.setInlining(CodeGenOptions::OnlyHintInlining);
1597 else
1598 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining);
1599 }
1600 }
1601
1602 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to
1603 // -fdirect-access-external-data.
1604 Opts.DirectAccessExternalData =
1605 Args.hasArg(OPT_fdirect_access_external_data) ||
1606 (!Args.hasArg(OPT_fno_direct_access_external_data) &&
1607 LangOpts->PICLevel == 0);
1608
1609 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) {
1610 unsigned Val =
1611 llvm::StringSwitch<unsigned>(A->getValue())
1612 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly)
1613 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly)
1614 .Case("constructor", codegenoptions::DebugInfoConstructor)
1615 .Case("limited", codegenoptions::LimitedDebugInfo)
1616 .Case("standalone", codegenoptions::FullDebugInfo)
1617 .Case("unused-types", codegenoptions::UnusedTypeInfo)
1618 .Default(~0U);
1619 if (Val == ~0U)
1620 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
1621 << A->getValue();
1622 else
1623 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val));
1624 }
1625
1626 // If -fuse-ctor-homing is set and limited debug info is already on, then use
1627 // constructor homing, and vice versa for -fno-use-ctor-homing.
1628 if (const Arg *A =
1629 Args.getLastArg(OPT_fuse_ctor_homing, OPT_fno_use_ctor_homing)) {
1630 if (A->getOption().matches(OPT_fuse_ctor_homing) &&
1631 Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo)
1632 Opts.setDebugInfo(codegenoptions::DebugInfoConstructor);
1633 if (A->getOption().matches(OPT_fno_use_ctor_homing) &&
1634 Opts.getDebugInfo() == codegenoptions::DebugInfoConstructor)
1635 Opts.setDebugInfo(codegenoptions::LimitedDebugInfo);
1636 }
1637
1638 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) {
1639 auto Split = StringRef(Arg).split('=');
1640 Opts.DebugPrefixMap.insert(
1641 {std::string(Split.first), std::string(Split.second)});
1642 }
1643
1644 for (const auto &Arg : Args.getAllArgValues(OPT_fcoverage_prefix_map_EQ)) {
1645 auto Split = StringRef(Arg).split('=');
1646 Opts.CoveragePrefixMap.insert(
1647 {std::string(Split.first), std::string(Split.second)});
1648 }
1649
1650 const llvm::Triple::ArchType DebugEntryValueArchs[] = {
1651 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64,
1652 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips,
1653 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el};
1654
1655 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() &&
1656 llvm::is_contained(DebugEntryValueArchs, T.getArch()))
1657 Opts.EmitCallSiteInfo = true;
1658
1659 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) {
1660 Diags.Report(diag::warn_ignoring_verify_debuginfo_preserve_export)
1661 << Opts.DIBugsReportFilePath;
1662 Opts.DIBugsReportFilePath = "";
1663 }
1664
1665 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) &&
1666 Args.hasArg(OPT_new_struct_path_tbaa);
1667 Opts.OptimizeSize = getOptimizationLevelSize(Args);
1668 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin;
1669 if (Opts.SimplifyLibCalls)
1670 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs;
1671 Opts.UnrollLoops =
1672 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops,
1673 (Opts.OptimizationLevel > 1));
1674 Opts.BinutilsVersion =
1675 std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ));
1676
1677 Opts.DebugNameTable = static_cast<unsigned>(
1678 Args.hasArg(OPT_ggnu_pubnames)
1679 ? llvm::DICompileUnit::DebugNameTableKind::GNU
1680 : Args.hasArg(OPT_gpubnames)
1681 ? llvm::DICompileUnit::DebugNameTableKind::Default
1682 : llvm::DICompileUnit::DebugNameTableKind::None);
1683
1684 if (!Opts.ProfileInstrumentUsePath.empty())
1685 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath);
1686
1687 if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) {
1688 Opts.TimePasses = true;
1689
1690 // -ftime-report= is only for new pass manager.
1691 if (A->getOption().getID() == OPT_ftime_report_EQ) {
1692 if (Opts.LegacyPassManager)
1693 Diags.Report(diag::err_drv_argument_only_allowed_with)
1694 << A->getAsString(Args) << "-fno-legacy-pass-manager";
1695
1696 StringRef Val = A->getValue();
1697 if (Val == "per-pass")
1698 Opts.TimePassesPerRun = false;
1699 else if (Val == "per-pass-run")
1700 Opts.TimePassesPerRun = true;
1701 else
1702 Diags.Report(diag::err_drv_invalid_value)
1703 << A->getAsString(Args) << A->getValue();
1704 }
1705 }
1706
1707 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ);
1708 Opts.PrepareForThinLTO = false;
1709 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) {
1710 StringRef S = A->getValue();
1711 if (S == "thin")
1712 Opts.PrepareForThinLTO = true;
1713 else if (S != "full")
1714 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S;
1715 }
1716 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) {
1717 if (IK.getLanguage() != Language::LLVM_IR)
1718 Diags.Report(diag::err_drv_argument_only_allowed_with)
1719 << A->getAsString(Args) << "-x ir";
1720 Opts.ThinLTOIndexFile =
1721 std::string(Args.getLastArgValue(OPT_fthinlto_index_EQ));
1722 }
1723 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ))
1724 Opts.SaveTempsFilePrefix =
1725 llvm::StringSwitch<std::string>(A->getValue())
1726 .Case("obj", OutputFile)
1727 .Default(llvm::sys::path::filename(OutputFile).str());
1728
1729 // The memory profile runtime appends the pid to make this name more unique.
1730 const char *MemProfileBasename = "memprof.profraw";
1731 if (Args.hasArg(OPT_fmemory_profile_EQ)) {
1732 SmallString<128> Path(
1733 std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ)));
1734 llvm::sys::path::append(Path, MemProfileBasename);
1735 Opts.MemoryProfileOutput = std::string(Path);
1736 } else if (Args.hasArg(OPT_fmemory_profile))
1737 Opts.MemoryProfileOutput = MemProfileBasename;
1738
1739 memcpy(Opts.CoverageVersion, "408*", 4);
1740 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) {
1741 if (Args.hasArg(OPT_coverage_version_EQ)) {
1742 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ);
1743 if (CoverageVersion.size() != 4) {
1744 Diags.Report(diag::err_drv_invalid_value)
1745 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args)
1746 << CoverageVersion;
1747 } else {
1748 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4);
1749 }
1750 }
1751 }
1752 // FIXME: For backend options that are not yet recorded as function
1753 // attributes in the IR, keep track of them so we can embed them in a
1754 // separate data section and use them when building the bitcode.
1755 for (const auto &A : Args) {
1756 // Do not encode output and input.
1757 if (A->getOption().getID() == options::OPT_o ||
1758 A->getOption().getID() == options::OPT_INPUT ||
1759 A->getOption().getID() == options::OPT_x ||
1760 A->getOption().getID() == options::OPT_fembed_bitcode ||
1761 A->getOption().matches(options::OPT_W_Group))
1762 continue;
1763 ArgStringList ASL;
1764 A->render(Args, ASL);
1765 for (const auto &arg : ASL) {
1766 StringRef ArgStr(arg);
1767 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end());
1768 // using \00 to separate each commandline options.
1769 Opts.CmdArgs.push_back('\0');
1770 }
1771 }
1772
1773 auto XRayInstrBundles =
1774 Args.getAllArgValues(OPT_fxray_instrumentation_bundle);
1775 if (XRayInstrBundles.empty())
1776 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All;
1777 else
1778 for (const auto &A : XRayInstrBundles)
1779 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args,
1780 Diags, Opts.XRayInstrumentationBundle);
1781
1782 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) {
1783 StringRef Name = A->getValue();
1784 if (Name == "full") {
1785 Opts.CFProtectionReturn = 1;
1786 Opts.CFProtectionBranch = 1;
1787 } else if (Name == "return")
1788 Opts.CFProtectionReturn = 1;
1789 else if (Name == "branch")
1790 Opts.CFProtectionBranch = 1;
1791 else if (Name != "none")
1792 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
1793 }
1794
1795 for (auto *A :
1796 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) {
1797 CodeGenOptions::BitcodeFileToLink F;
1798 F.Filename = A->getValue();
1799 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) {
1800 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded;
1801 // When linking CUDA bitcode, propagate function attributes so that
1802 // e.g. libdevice gets fast-math attrs if we're building with fast-math.
1803 F.PropagateAttrs = true;
1804 F.Internalize = true;
1805 }
1806 Opts.LinkBitcodeFiles.push_back(F);
1807 }
1808
1809 if (Args.getLastArg(OPT_femulated_tls) ||
1810 Args.getLastArg(OPT_fno_emulated_tls)) {
1811 Opts.ExplicitEmulatedTLS = true;
1812 }
1813
1814 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) {
1815 if (T.isOSAIX()) {
1816 StringRef Name = A->getValue();
1817 if (Name != "global-dynamic")
1818 Diags.Report(diag::err_aix_unsupported_tls_model) << Name;
1819 }
1820 }
1821
1822 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) {
1823 StringRef Val = A->getValue();
1824 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val);
1825 if (!Opts.FPDenormalMode.isValid())
1826 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
1827 }
1828
1829 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) {
1830 StringRef Val = A->getValue();
1831 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val);
1832 if (!Opts.FP32DenormalMode.isValid())
1833 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
1834 }
1835
1836 // X86_32 has -fppc-struct-return and -freg-struct-return.
1837 // PPC32 has -maix-struct-return and -msvr4-struct-return.
1838 if (Arg *A =
1839 Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return,
1840 OPT_maix_struct_return, OPT_msvr4_struct_return)) {
1841 // TODO: We might want to consider enabling these options on AIX in the
1842 // future.
1843 if (T.isOSAIX())
1844 Diags.Report(diag::err_drv_unsupported_opt_for_target)
1845 << A->getSpelling() << T.str();
1846
1847 const Option &O = A->getOption();
1848 if (O.matches(OPT_fpcc_struct_return) ||
1849 O.matches(OPT_maix_struct_return)) {
1850 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack);
1851 } else {
1852 assert(O.matches(OPT_freg_struct_return) ||
1853 O.matches(OPT_msvr4_struct_return));
1854 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs);
1855 }
1856 }
1857
1858 if (Arg *A =
1859 Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) {
1860 if (!T.isOSAIX())
1861 Diags.Report(diag::err_drv_unsupported_opt_for_target)
1862 << A->getSpelling() << T.str();
1863
1864 const Option &O = A->getOption();
1865 Opts.EnableAIXExtendedAltivecABI = O.matches(OPT_mabi_EQ_vec_extabi);
1866 }
1867
1868 bool NeedLocTracking = false;
1869
1870 if (!Opts.OptRecordFile.empty())
1871 NeedLocTracking = true;
1872
1873 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) {
1874 Opts.OptRecordPasses = A->getValue();
1875 NeedLocTracking = true;
1876 }
1877
1878 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) {
1879 Opts.OptRecordFormat = A->getValue();
1880 NeedLocTracking = true;
1881 }
1882
1883 Opts.OptimizationRemark =
1884 ParseOptimizationRemark(Diags, Args, OPT_Rpass_EQ, "pass");
1885
1886 Opts.OptimizationRemarkMissed =
1887 ParseOptimizationRemark(Diags, Args, OPT_Rpass_missed_EQ, "pass-missed");
1888
1889 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark(
1890 Diags, Args, OPT_Rpass_analysis_EQ, "pass-analysis");
1891
1892 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() ||
1893 Opts.OptimizationRemarkMissed.hasValidPattern() ||
1894 Opts.OptimizationRemarkAnalysis.hasValidPattern();
1895
1896 bool UsingSampleProfile = !Opts.SampleProfileFile.empty();
1897 bool UsingProfile = UsingSampleProfile ||
1898 (Opts.getProfileUse() != CodeGenOptions::ProfileNone);
1899
1900 if (Opts.DiagnosticsWithHotness && !UsingProfile &&
1901 // An IR file will contain PGO as metadata
1902 IK.getLanguage() != Language::LLVM_IR)
1903 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo)
1904 << "-fdiagnostics-show-hotness";
1905
1906 // Parse remarks hotness threshold. Valid value is either integer or 'auto'.
1907 if (auto *arg =
1908 Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) {
1909 auto ResultOrErr =
1910 llvm::remarks::parseHotnessThresholdOption(arg->getValue());
1911
1912 if (!ResultOrErr) {
1913 Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold)
1914 << "-fdiagnostics-hotness-threshold=";
1915 } else {
1916 Opts.DiagnosticsHotnessThreshold = *ResultOrErr;
1917 if ((!Opts.DiagnosticsHotnessThreshold.hasValue() ||
1918 Opts.DiagnosticsHotnessThreshold.getValue() > 0) &&
1919 !UsingProfile)
1920 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo)
1921 << "-fdiagnostics-hotness-threshold=";
1922 }
1923 }
1924
1925 // If the user requested to use a sample profile for PGO, then the
1926 // backend will need to track source location information so the profile
1927 // can be incorporated into the IR.
1928 if (UsingSampleProfile)
1929 NeedLocTracking = true;
1930
1931 if (!Opts.StackUsageOutput.empty())
1932 NeedLocTracking = true;
1933
1934 // If the user requested a flag that requires source locations available in
1935 // the backend, make sure that the backend tracks source location information.
1936 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo)
1937 Opts.setDebugInfo(codegenoptions::LocTrackingOnly);
1938
1939 // Parse -fsanitize-recover= arguments.
1940 // FIXME: Report unrecoverable sanitizers incorrectly specified here.
1941 parseSanitizerKinds("-fsanitize-recover=",
1942 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags,
1943 Opts.SanitizeRecover);
1944 parseSanitizerKinds("-fsanitize-trap=",
1945 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags,
1946 Opts.SanitizeTrap);
1947
1948 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true);
1949
1950 if (Args.hasArg(options::OPT_ffinite_loops))
1951 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always;
1952 else if (Args.hasArg(options::OPT_fno_finite_loops))
1953 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never;
1954
1955 Opts.EmitIEEENaNCompliantInsts =
1956 Args.hasFlag(options::OPT_mamdgpu_ieee, options::OPT_mno_amdgpu_ieee);
1957 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs)
1958 Diags.Report(diag::err_drv_amdgpu_ieee_without_no_honor_nans);
1959
1960 return Diags.getNumErrors() == NumErrorsBefore;
1961 }
1962
1963 static void
GenerateDependencyOutputArgs(const DependencyOutputOptions & Opts,SmallVectorImpl<const char * > & Args,CompilerInvocation::StringAllocator SA)1964 GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts,
1965 SmallVectorImpl<const char *> &Args,
1966 CompilerInvocation::StringAllocator SA) {
1967 const DependencyOutputOptions &DependencyOutputOpts = Opts;
1968 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \
1969 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
1970 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
1971 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
1972 MERGER, EXTRACTOR, TABLE_INDEX) \
1973 GENERATE_OPTION_WITH_MARSHALLING( \
1974 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \
1975 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX)
1976 #include "clang/Driver/Options.inc"
1977 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING
1978
1979 if (Opts.ShowIncludesDest != ShowIncludesDestination::None)
1980 GenerateArg(Args, OPT_show_includes, SA);
1981
1982 for (const auto &Dep : Opts.ExtraDeps) {
1983 switch (Dep.second) {
1984 case EDK_SanitizeIgnorelist:
1985 // Sanitizer ignorelist arguments are generated from LanguageOptions.
1986 continue;
1987 case EDK_ModuleFile:
1988 // Module file arguments are generated from FrontendOptions and
1989 // HeaderSearchOptions.
1990 continue;
1991 case EDK_ProfileList:
1992 // Profile list arguments are generated from LanguageOptions via the
1993 // marshalling infrastructure.
1994 continue;
1995 case EDK_DepFileEntry:
1996 GenerateArg(Args, OPT_fdepfile_entry, Dep.first, SA);
1997 break;
1998 }
1999 }
2000 }
2001
ParseDependencyOutputArgs(DependencyOutputOptions & Opts,ArgList & Args,DiagnosticsEngine & Diags,frontend::ActionKind Action,bool ShowLineMarkers)2002 static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
2003 ArgList &Args, DiagnosticsEngine &Diags,
2004 frontend::ActionKind Action,
2005 bool ShowLineMarkers) {
2006 unsigned NumErrorsBefore = Diags.getNumErrors();
2007
2008 DependencyOutputOptions &DependencyOutputOpts = Opts;
2009 #define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING( \
2010 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
2011 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
2012 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
2013 MERGER, EXTRACTOR, TABLE_INDEX) \
2014 PARSE_OPTION_WITH_MARSHALLING( \
2015 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \
2016 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX)
2017 #include "clang/Driver/Options.inc"
2018 #undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING
2019
2020 if (Args.hasArg(OPT_show_includes)) {
2021 // Writing both /showIncludes and preprocessor output to stdout
2022 // would produce interleaved output, so use stderr for /showIncludes.
2023 // This behaves the same as cl.exe, when /E, /EP or /P are passed.
2024 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers)
2025 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr;
2026 else
2027 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout;
2028 } else {
2029 Opts.ShowIncludesDest = ShowIncludesDestination::None;
2030 }
2031
2032 // Add sanitizer ignorelists as extra dependencies.
2033 // They won't be discovered by the regular preprocessor, so
2034 // we let make / ninja to know about this implicit dependency.
2035 if (!Args.hasArg(OPT_fno_sanitize_ignorelist)) {
2036 for (const auto *A : Args.filtered(OPT_fsanitize_ignorelist_EQ)) {
2037 StringRef Val = A->getValue();
2038 if (Val.find('=') == StringRef::npos)
2039 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist);
2040 }
2041 if (Opts.IncludeSystemHeaders) {
2042 for (const auto *A : Args.filtered(OPT_fsanitize_system_ignorelist_EQ)) {
2043 StringRef Val = A->getValue();
2044 if (Val.find('=') == StringRef::npos)
2045 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_SanitizeIgnorelist);
2046 }
2047 }
2048 }
2049
2050 // -fprofile-list= dependencies.
2051 for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ))
2052 Opts.ExtraDeps.emplace_back(Filename, EDK_ProfileList);
2053
2054 // Propagate the extra dependencies.
2055 for (const auto *A : Args.filtered(OPT_fdepfile_entry))
2056 Opts.ExtraDeps.emplace_back(A->getValue(), EDK_DepFileEntry);
2057
2058 // Only the -fmodule-file=<file> form.
2059 for (const auto *A : Args.filtered(OPT_fmodule_file)) {
2060 StringRef Val = A->getValue();
2061 if (Val.find('=') == StringRef::npos)
2062 Opts.ExtraDeps.emplace_back(std::string(Val), EDK_ModuleFile);
2063 }
2064
2065 return Diags.getNumErrors() == NumErrorsBefore;
2066 }
2067
parseShowColorsArgs(const ArgList & Args,bool DefaultColor)2068 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) {
2069 // Color diagnostics default to auto ("on" if terminal supports) in the driver
2070 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color.
2071 // Support both clang's -f[no-]color-diagnostics and gcc's
2072 // -f[no-]diagnostics-colors[=never|always|auto].
2073 enum {
2074 Colors_On,
2075 Colors_Off,
2076 Colors_Auto
2077 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off;
2078 for (auto *A : Args) {
2079 const Option &O = A->getOption();
2080 if (O.matches(options::OPT_fcolor_diagnostics) ||
2081 O.matches(options::OPT_fdiagnostics_color)) {
2082 ShowColors = Colors_On;
2083 } else if (O.matches(options::OPT_fno_color_diagnostics) ||
2084 O.matches(options::OPT_fno_diagnostics_color)) {
2085 ShowColors = Colors_Off;
2086 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) {
2087 StringRef Value(A->getValue());
2088 if (Value == "always")
2089 ShowColors = Colors_On;
2090 else if (Value == "never")
2091 ShowColors = Colors_Off;
2092 else if (Value == "auto")
2093 ShowColors = Colors_Auto;
2094 }
2095 }
2096 return ShowColors == Colors_On ||
2097 (ShowColors == Colors_Auto &&
2098 llvm::sys::Process::StandardErrHasColors());
2099 }
2100
checkVerifyPrefixes(const std::vector<std::string> & VerifyPrefixes,DiagnosticsEngine & Diags)2101 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes,
2102 DiagnosticsEngine &Diags) {
2103 bool Success = true;
2104 for (const auto &Prefix : VerifyPrefixes) {
2105 // Every prefix must start with a letter and contain only alphanumeric
2106 // characters, hyphens, and underscores.
2107 auto BadChar = llvm::find_if(Prefix, [](char C) {
2108 return !isAlphanumeric(C) && C != '-' && C != '_';
2109 });
2110 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) {
2111 Success = false;
2112 Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix;
2113 Diags.Report(diag::note_drv_verify_prefix_spelling);
2114 }
2115 }
2116 return Success;
2117 }
2118
GenerateFileSystemArgs(const FileSystemOptions & Opts,SmallVectorImpl<const char * > & Args,CompilerInvocation::StringAllocator SA)2119 static void GenerateFileSystemArgs(const FileSystemOptions &Opts,
2120 SmallVectorImpl<const char *> &Args,
2121 CompilerInvocation::StringAllocator SA) {
2122 const FileSystemOptions &FileSystemOpts = Opts;
2123
2124 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \
2125 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
2126 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
2127 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
2128 MERGER, EXTRACTOR, TABLE_INDEX) \
2129 GENERATE_OPTION_WITH_MARSHALLING( \
2130 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \
2131 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX)
2132 #include "clang/Driver/Options.inc"
2133 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING
2134 }
2135
ParseFileSystemArgs(FileSystemOptions & Opts,const ArgList & Args,DiagnosticsEngine & Diags)2136 static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args,
2137 DiagnosticsEngine &Diags) {
2138 unsigned NumErrorsBefore = Diags.getNumErrors();
2139
2140 FileSystemOptions &FileSystemOpts = Opts;
2141
2142 #define FILE_SYSTEM_OPTION_WITH_MARSHALLING( \
2143 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
2144 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
2145 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
2146 MERGER, EXTRACTOR, TABLE_INDEX) \
2147 PARSE_OPTION_WITH_MARSHALLING( \
2148 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \
2149 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX)
2150 #include "clang/Driver/Options.inc"
2151 #undef FILE_SYSTEM_OPTION_WITH_MARSHALLING
2152
2153 return Diags.getNumErrors() == NumErrorsBefore;
2154 }
2155
GenerateMigratorArgs(const MigratorOptions & Opts,SmallVectorImpl<const char * > & Args,CompilerInvocation::StringAllocator SA)2156 static void GenerateMigratorArgs(const MigratorOptions &Opts,
2157 SmallVectorImpl<const char *> &Args,
2158 CompilerInvocation::StringAllocator SA) {
2159 const MigratorOptions &MigratorOpts = Opts;
2160 #define MIGRATOR_OPTION_WITH_MARSHALLING( \
2161 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
2162 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
2163 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
2164 MERGER, EXTRACTOR, TABLE_INDEX) \
2165 GENERATE_OPTION_WITH_MARSHALLING( \
2166 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \
2167 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX)
2168 #include "clang/Driver/Options.inc"
2169 #undef MIGRATOR_OPTION_WITH_MARSHALLING
2170 }
2171
ParseMigratorArgs(MigratorOptions & Opts,const ArgList & Args,DiagnosticsEngine & Diags)2172 static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args,
2173 DiagnosticsEngine &Diags) {
2174 unsigned NumErrorsBefore = Diags.getNumErrors();
2175
2176 MigratorOptions &MigratorOpts = Opts;
2177
2178 #define MIGRATOR_OPTION_WITH_MARSHALLING( \
2179 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
2180 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
2181 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
2182 MERGER, EXTRACTOR, TABLE_INDEX) \
2183 PARSE_OPTION_WITH_MARSHALLING( \
2184 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \
2185 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX)
2186 #include "clang/Driver/Options.inc"
2187 #undef MIGRATOR_OPTION_WITH_MARSHALLING
2188
2189 return Diags.getNumErrors() == NumErrorsBefore;
2190 }
2191
GenerateDiagnosticArgs(const DiagnosticOptions & Opts,SmallVectorImpl<const char * > & Args,StringAllocator SA,bool DefaultDiagColor)2192 void CompilerInvocation::GenerateDiagnosticArgs(
2193 const DiagnosticOptions &Opts, SmallVectorImpl<const char *> &Args,
2194 StringAllocator SA, bool DefaultDiagColor) {
2195 const DiagnosticOptions *DiagnosticOpts = &Opts;
2196 #define DIAG_OPTION_WITH_MARSHALLING( \
2197 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
2198 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
2199 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
2200 MERGER, EXTRACTOR, TABLE_INDEX) \
2201 GENERATE_OPTION_WITH_MARSHALLING( \
2202 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \
2203 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX)
2204 #include "clang/Driver/Options.inc"
2205 #undef DIAG_OPTION_WITH_MARSHALLING
2206
2207 if (!Opts.DiagnosticSerializationFile.empty())
2208 GenerateArg(Args, OPT_diagnostic_serialized_file,
2209 Opts.DiagnosticSerializationFile, SA);
2210
2211 if (Opts.ShowColors)
2212 GenerateArg(Args, OPT_fcolor_diagnostics, SA);
2213
2214 if (Opts.VerifyDiagnostics &&
2215 llvm::is_contained(Opts.VerifyPrefixes, "expected"))
2216 GenerateArg(Args, OPT_verify, SA);
2217
2218 for (const auto &Prefix : Opts.VerifyPrefixes)
2219 if (Prefix != "expected")
2220 GenerateArg(Args, OPT_verify_EQ, Prefix, SA);
2221
2222 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected();
2223 if (VIU == DiagnosticLevelMask::None) {
2224 // This is the default, don't generate anything.
2225 } else if (VIU == DiagnosticLevelMask::All) {
2226 GenerateArg(Args, OPT_verify_ignore_unexpected, SA);
2227 } else {
2228 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0)
2229 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "note", SA);
2230 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0)
2231 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "remark", SA);
2232 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0)
2233 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "warning", SA);
2234 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0)
2235 GenerateArg(Args, OPT_verify_ignore_unexpected_EQ, "error", SA);
2236 }
2237
2238 for (const auto &Warning : Opts.Warnings) {
2239 // This option is automatically generated from UndefPrefixes.
2240 if (Warning == "undef-prefix")
2241 continue;
2242 Args.push_back(SA(StringRef("-W") + Warning));
2243 }
2244
2245 for (const auto &Remark : Opts.Remarks) {
2246 // These arguments are generated from OptimizationRemark fields of
2247 // CodeGenOptions.
2248 StringRef IgnoredRemarks[] = {"pass", "no-pass",
2249 "pass-analysis", "no-pass-analysis",
2250 "pass-missed", "no-pass-missed"};
2251 if (llvm::is_contained(IgnoredRemarks, Remark))
2252 continue;
2253
2254 Args.push_back(SA(StringRef("-R") + Remark));
2255 }
2256 }
2257
ParseDiagnosticArgs(DiagnosticOptions & Opts,ArgList & Args,DiagnosticsEngine * Diags,bool DefaultDiagColor)2258 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
2259 DiagnosticsEngine *Diags,
2260 bool DefaultDiagColor) {
2261 Optional<DiagnosticsEngine> IgnoringDiags;
2262 if (!Diags) {
2263 IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(),
2264 new IgnoringDiagConsumer());
2265 Diags = &*IgnoringDiags;
2266 }
2267
2268 unsigned NumErrorsBefore = Diags->getNumErrors();
2269
2270 // The key paths of diagnostic options defined in Options.td start with
2271 // "DiagnosticOpts->". Let's provide the expected variable name and type.
2272 DiagnosticOptions *DiagnosticOpts = &Opts;
2273
2274 #define DIAG_OPTION_WITH_MARSHALLING( \
2275 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
2276 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
2277 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
2278 MERGER, EXTRACTOR, TABLE_INDEX) \
2279 PARSE_OPTION_WITH_MARSHALLING( \
2280 Args, *Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \
2281 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX)
2282 #include "clang/Driver/Options.inc"
2283 #undef DIAG_OPTION_WITH_MARSHALLING
2284
2285 llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes);
2286
2287 if (Arg *A =
2288 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags))
2289 Opts.DiagnosticSerializationFile = A->getValue();
2290 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor);
2291
2292 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ);
2293 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ);
2294 if (Args.hasArg(OPT_verify))
2295 Opts.VerifyPrefixes.push_back("expected");
2296 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and
2297 // then sort it to prepare for fast lookup using std::binary_search.
2298 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, *Diags))
2299 Opts.VerifyDiagnostics = false;
2300 else
2301 llvm::sort(Opts.VerifyPrefixes);
2302 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None;
2303 parseDiagnosticLevelMask(
2304 "-verify-ignore-unexpected=",
2305 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ), *Diags, DiagMask);
2306 if (Args.hasArg(OPT_verify_ignore_unexpected))
2307 DiagMask = DiagnosticLevelMask::All;
2308 Opts.setVerifyIgnoreUnexpected(DiagMask);
2309 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
2310 Opts.TabStop = DiagnosticOptions::DefaultTabStop;
2311 Diags->Report(diag::warn_ignoring_ftabstop_value)
2312 << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
2313 }
2314
2315 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings);
2316 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks);
2317
2318 return Diags->getNumErrors() == NumErrorsBefore;
2319 }
2320
2321 /// Parse the argument to the -ftest-module-file-extension
2322 /// command-line argument.
2323 ///
2324 /// \returns true on error, false on success.
parseTestModuleFileExtensionArg(StringRef Arg,std::string & BlockName,unsigned & MajorVersion,unsigned & MinorVersion,bool & Hashed,std::string & UserInfo)2325 static bool parseTestModuleFileExtensionArg(StringRef Arg,
2326 std::string &BlockName,
2327 unsigned &MajorVersion,
2328 unsigned &MinorVersion,
2329 bool &Hashed,
2330 std::string &UserInfo) {
2331 SmallVector<StringRef, 5> Args;
2332 Arg.split(Args, ':', 5);
2333 if (Args.size() < 5)
2334 return true;
2335
2336 BlockName = std::string(Args[0]);
2337 if (Args[1].getAsInteger(10, MajorVersion)) return true;
2338 if (Args[2].getAsInteger(10, MinorVersion)) return true;
2339 if (Args[3].getAsInteger(2, Hashed)) return true;
2340 if (Args.size() > 4)
2341 UserInfo = std::string(Args[4]);
2342 return false;
2343 }
2344
2345 /// Return a table that associates command line option specifiers with the
2346 /// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is
2347 /// intentionally missing, as this case is handled separately from other
2348 /// frontend options.
getFrontendActionTable()2349 static const auto &getFrontendActionTable() {
2350 static const std::pair<frontend::ActionKind, unsigned> Table[] = {
2351 {frontend::ASTDeclList, OPT_ast_list},
2352
2353 {frontend::ASTDump, OPT_ast_dump_all_EQ},
2354 {frontend::ASTDump, OPT_ast_dump_all},
2355 {frontend::ASTDump, OPT_ast_dump_EQ},
2356 {frontend::ASTDump, OPT_ast_dump},
2357 {frontend::ASTDump, OPT_ast_dump_lookups},
2358 {frontend::ASTDump, OPT_ast_dump_decl_types},
2359
2360 {frontend::ASTPrint, OPT_ast_print},
2361 {frontend::ASTView, OPT_ast_view},
2362 {frontend::DumpCompilerOptions, OPT_compiler_options_dump},
2363 {frontend::DumpRawTokens, OPT_dump_raw_tokens},
2364 {frontend::DumpTokens, OPT_dump_tokens},
2365 {frontend::EmitAssembly, OPT_S},
2366 {frontend::EmitBC, OPT_emit_llvm_bc},
2367 {frontend::EmitHTML, OPT_emit_html},
2368 {frontend::EmitLLVM, OPT_emit_llvm},
2369 {frontend::EmitLLVMOnly, OPT_emit_llvm_only},
2370 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only},
2371 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only},
2372 {frontend::EmitObj, OPT_emit_obj},
2373
2374 {frontend::FixIt, OPT_fixit_EQ},
2375 {frontend::FixIt, OPT_fixit},
2376
2377 {frontend::GenerateModule, OPT_emit_module},
2378 {frontend::GenerateModuleInterface, OPT_emit_module_interface},
2379 {frontend::GenerateHeaderModule, OPT_emit_header_module},
2380 {frontend::GeneratePCH, OPT_emit_pch},
2381 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs},
2382 {frontend::InitOnly, OPT_init_only},
2383 {frontend::ParseSyntaxOnly, OPT_fsyntax_only},
2384 {frontend::ModuleFileInfo, OPT_module_file_info},
2385 {frontend::VerifyPCH, OPT_verify_pch},
2386 {frontend::PrintPreamble, OPT_print_preamble},
2387 {frontend::PrintPreprocessedInput, OPT_E},
2388 {frontend::TemplightDump, OPT_templight_dump},
2389 {frontend::RewriteMacros, OPT_rewrite_macros},
2390 {frontend::RewriteObjC, OPT_rewrite_objc},
2391 {frontend::RewriteTest, OPT_rewrite_test},
2392 {frontend::RunAnalysis, OPT_analyze},
2393 {frontend::MigrateSource, OPT_migrate},
2394 {frontend::RunPreprocessorOnly, OPT_Eonly},
2395 {frontend::PrintDependencyDirectivesSourceMinimizerOutput,
2396 OPT_print_dependency_directives_minimized_source},
2397 };
2398
2399 return Table;
2400 }
2401
2402 /// Maps command line option to frontend action.
getFrontendAction(OptSpecifier & Opt)2403 static Optional<frontend::ActionKind> getFrontendAction(OptSpecifier &Opt) {
2404 for (const auto &ActionOpt : getFrontendActionTable())
2405 if (ActionOpt.second == Opt.getID())
2406 return ActionOpt.first;
2407
2408 return None;
2409 }
2410
2411 /// Maps frontend action to command line option.
2412 static Optional<OptSpecifier>
getProgramActionOpt(frontend::ActionKind ProgramAction)2413 getProgramActionOpt(frontend::ActionKind ProgramAction) {
2414 for (const auto &ActionOpt : getFrontendActionTable())
2415 if (ActionOpt.first == ProgramAction)
2416 return OptSpecifier(ActionOpt.second);
2417
2418 return None;
2419 }
2420
GenerateFrontendArgs(const FrontendOptions & Opts,SmallVectorImpl<const char * > & Args,CompilerInvocation::StringAllocator SA,bool IsHeader)2421 static void GenerateFrontendArgs(const FrontendOptions &Opts,
2422 SmallVectorImpl<const char *> &Args,
2423 CompilerInvocation::StringAllocator SA,
2424 bool IsHeader) {
2425 const FrontendOptions &FrontendOpts = Opts;
2426 #define FRONTEND_OPTION_WITH_MARSHALLING( \
2427 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
2428 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
2429 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
2430 MERGER, EXTRACTOR, TABLE_INDEX) \
2431 GENERATE_OPTION_WITH_MARSHALLING( \
2432 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \
2433 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX)
2434 #include "clang/Driver/Options.inc"
2435 #undef FRONTEND_OPTION_WITH_MARSHALLING
2436
2437 Optional<OptSpecifier> ProgramActionOpt =
2438 getProgramActionOpt(Opts.ProgramAction);
2439
2440 // Generating a simple flag covers most frontend actions.
2441 std::function<void()> GenerateProgramAction = [&]() {
2442 GenerateArg(Args, *ProgramActionOpt, SA);
2443 };
2444
2445 if (!ProgramActionOpt) {
2446 // PluginAction is the only program action handled separately.
2447 assert(Opts.ProgramAction == frontend::PluginAction &&
2448 "Frontend action without option.");
2449 GenerateProgramAction = [&]() {
2450 GenerateArg(Args, OPT_plugin, Opts.ActionName, SA);
2451 };
2452 }
2453
2454 // FIXME: Simplify the complex 'AST dump' command line.
2455 if (Opts.ProgramAction == frontend::ASTDump) {
2456 GenerateProgramAction = [&]() {
2457 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via
2458 // marshalling infrastructure.
2459
2460 if (Opts.ASTDumpFormat != ADOF_Default) {
2461 StringRef Format;
2462 switch (Opts.ASTDumpFormat) {
2463 case ADOF_Default:
2464 llvm_unreachable("Default AST dump format.");
2465 case ADOF_JSON:
2466 Format = "json";
2467 break;
2468 }
2469
2470 if (Opts.ASTDumpAll)
2471 GenerateArg(Args, OPT_ast_dump_all_EQ, Format, SA);
2472 if (Opts.ASTDumpDecls)
2473 GenerateArg(Args, OPT_ast_dump_EQ, Format, SA);
2474 } else {
2475 if (Opts.ASTDumpAll)
2476 GenerateArg(Args, OPT_ast_dump_all, SA);
2477 if (Opts.ASTDumpDecls)
2478 GenerateArg(Args, OPT_ast_dump, SA);
2479 }
2480 };
2481 }
2482
2483 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) {
2484 GenerateProgramAction = [&]() {
2485 GenerateArg(Args, OPT_fixit_EQ, Opts.FixItSuffix, SA);
2486 };
2487 }
2488
2489 GenerateProgramAction();
2490
2491 for (const auto &PluginArgs : Opts.PluginArgs) {
2492 Option Opt = getDriverOptTable().getOption(OPT_plugin_arg);
2493 const char *Spelling =
2494 SA(Opt.getPrefix() + Opt.getName() + PluginArgs.first);
2495 for (const auto &PluginArg : PluginArgs.second)
2496 denormalizeString(Args, Spelling, SA, Opt.getKind(), 0, PluginArg);
2497 }
2498
2499 for (const auto &Ext : Opts.ModuleFileExtensions)
2500 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Ext.get()))
2501 GenerateArg(Args, OPT_ftest_module_file_extension_EQ, TestExt->str(), SA);
2502
2503 if (!Opts.CodeCompletionAt.FileName.empty())
2504 GenerateArg(Args, OPT_code_completion_at, Opts.CodeCompletionAt.ToString(),
2505 SA);
2506
2507 for (const auto &Plugin : Opts.Plugins)
2508 GenerateArg(Args, OPT_load, Plugin, SA);
2509
2510 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction.
2511
2512 for (const auto &ModuleFile : Opts.ModuleFiles)
2513 GenerateArg(Args, OPT_fmodule_file, ModuleFile, SA);
2514
2515 if (Opts.AuxTargetCPU.hasValue())
2516 GenerateArg(Args, OPT_aux_target_cpu, *Opts.AuxTargetCPU, SA);
2517
2518 if (Opts.AuxTargetFeatures.hasValue())
2519 for (const auto &Feature : *Opts.AuxTargetFeatures)
2520 GenerateArg(Args, OPT_aux_target_feature, Feature, SA);
2521
2522 {
2523 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : "";
2524 StringRef ModuleMap =
2525 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : "";
2526 StringRef Header = IsHeader ? "-header" : "";
2527
2528 StringRef Lang;
2529 switch (Opts.DashX.getLanguage()) {
2530 case Language::C:
2531 Lang = "c";
2532 break;
2533 case Language::OpenCL:
2534 Lang = "cl";
2535 break;
2536 case Language::OpenCLCXX:
2537 Lang = "clcpp";
2538 break;
2539 case Language::CUDA:
2540 Lang = "cuda";
2541 break;
2542 case Language::HIP:
2543 Lang = "hip";
2544 break;
2545 case Language::CXX:
2546 Lang = "c++";
2547 break;
2548 case Language::ObjC:
2549 Lang = "objective-c";
2550 break;
2551 case Language::ObjCXX:
2552 Lang = "objective-c++";
2553 break;
2554 case Language::RenderScript:
2555 Lang = "renderscript";
2556 break;
2557 case Language::Asm:
2558 Lang = "assembler-with-cpp";
2559 break;
2560 case Language::Unknown:
2561 assert(Opts.DashX.getFormat() == InputKind::Precompiled &&
2562 "Generating -x argument for unknown language (not precompiled).");
2563 Lang = "ast";
2564 break;
2565 case Language::LLVM_IR:
2566 Lang = "ir";
2567 break;
2568 }
2569
2570 GenerateArg(Args, OPT_x, Lang + Header + ModuleMap + Preprocessed, SA);
2571 }
2572
2573 // OPT_INPUT has a unique class, generate it directly.
2574 for (const auto &Input : Opts.Inputs)
2575 Args.push_back(SA(Input.getFile()));
2576 }
2577
ParseFrontendArgs(FrontendOptions & Opts,ArgList & Args,DiagnosticsEngine & Diags,bool & IsHeaderFile)2578 static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
2579 DiagnosticsEngine &Diags, bool &IsHeaderFile) {
2580 unsigned NumErrorsBefore = Diags.getNumErrors();
2581
2582 FrontendOptions &FrontendOpts = Opts;
2583
2584 #define FRONTEND_OPTION_WITH_MARSHALLING( \
2585 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
2586 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
2587 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
2588 MERGER, EXTRACTOR, TABLE_INDEX) \
2589 PARSE_OPTION_WITH_MARSHALLING( \
2590 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \
2591 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX)
2592 #include "clang/Driver/Options.inc"
2593 #undef FRONTEND_OPTION_WITH_MARSHALLING
2594
2595 Opts.ProgramAction = frontend::ParseSyntaxOnly;
2596 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) {
2597 OptSpecifier Opt = OptSpecifier(A->getOption().getID());
2598 Optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt);
2599 assert(ProgramAction && "Option specifier not in Action_Group.");
2600
2601 if (ProgramAction == frontend::ASTDump &&
2602 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) {
2603 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue())
2604 .CaseLower("default", ADOF_Default)
2605 .CaseLower("json", ADOF_JSON)
2606 .Default(std::numeric_limits<unsigned>::max());
2607
2608 if (Val != std::numeric_limits<unsigned>::max())
2609 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val);
2610 else {
2611 Diags.Report(diag::err_drv_invalid_value)
2612 << A->getAsString(Args) << A->getValue();
2613 Opts.ASTDumpFormat = ADOF_Default;
2614 }
2615 }
2616
2617 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ)
2618 Opts.FixItSuffix = A->getValue();
2619
2620 if (ProgramAction == frontend::GenerateInterfaceStubs) {
2621 StringRef ArgStr =
2622 Args.hasArg(OPT_interface_stub_version_EQ)
2623 ? Args.getLastArgValue(OPT_interface_stub_version_EQ)
2624 : "ifs-v1";
2625 if (ArgStr == "experimental-yaml-elf-v1" ||
2626 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" ||
2627 ArgStr == "experimental-tapi-elf-v1") {
2628 std::string ErrorMessage =
2629 "Invalid interface stub format: " + ArgStr.str() +
2630 " is deprecated.";
2631 Diags.Report(diag::err_drv_invalid_value)
2632 << "Must specify a valid interface stub format type, ie: "
2633 "-interface-stub-version=ifs-v1"
2634 << ErrorMessage;
2635 ProgramAction = frontend::ParseSyntaxOnly;
2636 } else if (!ArgStr.startswith("ifs-")) {
2637 std::string ErrorMessage =
2638 "Invalid interface stub format: " + ArgStr.str() + ".";
2639 Diags.Report(diag::err_drv_invalid_value)
2640 << "Must specify a valid interface stub format type, ie: "
2641 "-interface-stub-version=ifs-v1"
2642 << ErrorMessage;
2643 ProgramAction = frontend::ParseSyntaxOnly;
2644 }
2645 }
2646
2647 Opts.ProgramAction = *ProgramAction;
2648 }
2649
2650 if (const Arg* A = Args.getLastArg(OPT_plugin)) {
2651 Opts.Plugins.emplace_back(A->getValue(0));
2652 Opts.ProgramAction = frontend::PluginAction;
2653 Opts.ActionName = A->getValue();
2654 }
2655 for (const auto *AA : Args.filtered(OPT_plugin_arg))
2656 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1));
2657
2658 for (const std::string &Arg :
2659 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) {
2660 std::string BlockName;
2661 unsigned MajorVersion;
2662 unsigned MinorVersion;
2663 bool Hashed;
2664 std::string UserInfo;
2665 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion,
2666 MinorVersion, Hashed, UserInfo)) {
2667 Diags.Report(diag::err_test_module_file_extension_format) << Arg;
2668
2669 continue;
2670 }
2671
2672 // Add the testing module file extension.
2673 Opts.ModuleFileExtensions.push_back(
2674 std::make_shared<TestModuleFileExtension>(
2675 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo));
2676 }
2677
2678 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) {
2679 Opts.CodeCompletionAt =
2680 ParsedSourceLocation::FromString(A->getValue());
2681 if (Opts.CodeCompletionAt.FileName.empty())
2682 Diags.Report(diag::err_drv_invalid_value)
2683 << A->getAsString(Args) << A->getValue();
2684 }
2685
2686 Opts.Plugins = Args.getAllArgValues(OPT_load);
2687 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ);
2688 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ);
2689 // Only the -fmodule-file=<file> form.
2690 for (const auto *A : Args.filtered(OPT_fmodule_file)) {
2691 StringRef Val = A->getValue();
2692 if (Val.find('=') == StringRef::npos)
2693 Opts.ModuleFiles.push_back(std::string(Val));
2694 }
2695
2696 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule)
2697 Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module"
2698 << "-emit-module";
2699
2700 if (Args.hasArg(OPT_aux_target_cpu))
2701 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu));
2702 if (Args.hasArg(OPT_aux_target_feature))
2703 Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature);
2704
2705 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None &&
2706 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) {
2707 Diags.Report(diag::err_drv_argument_not_allowed_with)
2708 << "ARC migration" << "ObjC migration";
2709 }
2710
2711 InputKind DashX(Language::Unknown);
2712 if (const Arg *A = Args.getLastArg(OPT_x)) {
2713 StringRef XValue = A->getValue();
2714
2715 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'.
2716 // FIXME: Supporting '<lang>-header-cpp-output' would be useful.
2717 bool Preprocessed = XValue.consume_back("-cpp-output");
2718 bool ModuleMap = XValue.consume_back("-module-map");
2719 IsHeaderFile = !Preprocessed && !ModuleMap &&
2720 XValue != "precompiled-header" &&
2721 XValue.consume_back("-header");
2722
2723 // Principal languages.
2724 DashX = llvm::StringSwitch<InputKind>(XValue)
2725 .Case("c", Language::C)
2726 .Case("cl", Language::OpenCL)
2727 .Case("clcpp", Language::OpenCLCXX)
2728 .Case("cuda", Language::CUDA)
2729 .Case("hip", Language::HIP)
2730 .Case("c++", Language::CXX)
2731 .Case("objective-c", Language::ObjC)
2732 .Case("objective-c++", Language::ObjCXX)
2733 .Case("renderscript", Language::RenderScript)
2734 .Default(Language::Unknown);
2735
2736 // "objc[++]-cpp-output" is an acceptable synonym for
2737 // "objective-c[++]-cpp-output".
2738 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap)
2739 DashX = llvm::StringSwitch<InputKind>(XValue)
2740 .Case("objc", Language::ObjC)
2741 .Case("objc++", Language::ObjCXX)
2742 .Default(Language::Unknown);
2743
2744 // Some special cases cannot be combined with suffixes.
2745 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile)
2746 DashX = llvm::StringSwitch<InputKind>(XValue)
2747 .Case("cpp-output", InputKind(Language::C).getPreprocessed())
2748 .Case("assembler-with-cpp", Language::Asm)
2749 .Cases("ast", "pcm", "precompiled-header",
2750 InputKind(Language::Unknown, InputKind::Precompiled))
2751 .Case("ir", Language::LLVM_IR)
2752 .Default(Language::Unknown);
2753
2754 if (DashX.isUnknown())
2755 Diags.Report(diag::err_drv_invalid_value)
2756 << A->getAsString(Args) << A->getValue();
2757
2758 if (Preprocessed)
2759 DashX = DashX.getPreprocessed();
2760 if (ModuleMap)
2761 DashX = DashX.withFormat(InputKind::ModuleMap);
2762 }
2763
2764 // '-' is the default input if none is given.
2765 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT);
2766 Opts.Inputs.clear();
2767 if (Inputs.empty())
2768 Inputs.push_back("-");
2769 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
2770 InputKind IK = DashX;
2771 if (IK.isUnknown()) {
2772 IK = FrontendOptions::getInputKindForExtension(
2773 StringRef(Inputs[i]).rsplit('.').second);
2774 // FIXME: Warn on this?
2775 if (IK.isUnknown())
2776 IK = Language::C;
2777 // FIXME: Remove this hack.
2778 if (i == 0)
2779 DashX = IK;
2780 }
2781
2782 bool IsSystem = false;
2783
2784 // The -emit-module action implicitly takes a module map.
2785 if (Opts.ProgramAction == frontend::GenerateModule &&
2786 IK.getFormat() == InputKind::Source) {
2787 IK = IK.withFormat(InputKind::ModuleMap);
2788 IsSystem = Opts.IsSystemModule;
2789 }
2790
2791 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem);
2792 }
2793
2794 Opts.DashX = DashX;
2795
2796 return Diags.getNumErrors() == NumErrorsBefore;
2797 }
2798
GetResourcesPath(const char * Argv0,void * MainAddr)2799 std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
2800 void *MainAddr) {
2801 std::string ClangExecutable =
2802 llvm::sys::fs::getMainExecutable(Argv0, MainAddr);
2803 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR);
2804 }
2805
GenerateHeaderSearchArgs(HeaderSearchOptions & Opts,SmallVectorImpl<const char * > & Args,CompilerInvocation::StringAllocator SA)2806 static void GenerateHeaderSearchArgs(HeaderSearchOptions &Opts,
2807 SmallVectorImpl<const char *> &Args,
2808 CompilerInvocation::StringAllocator SA) {
2809 const HeaderSearchOptions *HeaderSearchOpts = &Opts;
2810 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \
2811 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
2812 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
2813 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
2814 MERGER, EXTRACTOR, TABLE_INDEX) \
2815 GENERATE_OPTION_WITH_MARSHALLING( \
2816 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \
2817 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX)
2818 #include "clang/Driver/Options.inc"
2819 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING
2820
2821 if (Opts.UseLibcxx)
2822 GenerateArg(Args, OPT_stdlib_EQ, "libc++", SA);
2823
2824 if (!Opts.ModuleCachePath.empty())
2825 GenerateArg(Args, OPT_fmodules_cache_path, Opts.ModuleCachePath, SA);
2826
2827 for (const auto &File : Opts.PrebuiltModuleFiles)
2828 GenerateArg(Args, OPT_fmodule_file, File.first + "=" + File.second, SA);
2829
2830 for (const auto &Path : Opts.PrebuiltModulePaths)
2831 GenerateArg(Args, OPT_fprebuilt_module_path, Path, SA);
2832
2833 for (const auto &Macro : Opts.ModulesIgnoreMacros)
2834 GenerateArg(Args, OPT_fmodules_ignore_macro, Macro.val(), SA);
2835
2836 auto Matches = [](const HeaderSearchOptions::Entry &Entry,
2837 llvm::ArrayRef<frontend::IncludeDirGroup> Groups,
2838 llvm::Optional<bool> IsFramework,
2839 llvm::Optional<bool> IgnoreSysRoot) {
2840 return llvm::find(Groups, Entry.Group) != Groups.end() &&
2841 (!IsFramework || (Entry.IsFramework == *IsFramework)) &&
2842 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot));
2843 };
2844
2845 auto It = Opts.UserEntries.begin();
2846 auto End = Opts.UserEntries.end();
2847
2848 // Add -I..., -F..., and -index-header-map options in order.
2849 for (; It < End &&
2850 Matches(*It, {frontend::IndexHeaderMap, frontend::Angled}, None, true);
2851 ++It) {
2852 OptSpecifier Opt = [It, Matches]() {
2853 if (Matches(*It, frontend::IndexHeaderMap, true, true))
2854 return OPT_F;
2855 if (Matches(*It, frontend::IndexHeaderMap, false, true))
2856 return OPT_I;
2857 if (Matches(*It, frontend::Angled, true, true))
2858 return OPT_F;
2859 if (Matches(*It, frontend::Angled, false, true))
2860 return OPT_I;
2861 llvm_unreachable("Unexpected HeaderSearchOptions::Entry.");
2862 }();
2863
2864 if (It->Group == frontend::IndexHeaderMap)
2865 GenerateArg(Args, OPT_index_header_map, SA);
2866 GenerateArg(Args, Opt, It->Path, SA);
2867 };
2868
2869 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may
2870 // have already been generated as "-I[xx]yy". If that's the case, their
2871 // position on command line was such that this has no semantic impact on
2872 // include paths.
2873 for (; It < End &&
2874 Matches(*It, {frontend::After, frontend::Angled}, false, true);
2875 ++It) {
2876 OptSpecifier Opt =
2877 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore;
2878 GenerateArg(Args, Opt, It->Path, SA);
2879 }
2880
2881 // Note: Some paths that came from "-idirafter=xxyy" may have already been
2882 // generated as "-iwithprefix=xxyy". If that's the case, their position on
2883 // command line was such that this has no semantic impact on include paths.
2884 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It)
2885 GenerateArg(Args, OPT_idirafter, It->Path, SA);
2886 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It)
2887 GenerateArg(Args, OPT_iquote, It->Path, SA);
2888 for (; It < End && Matches(*It, {frontend::System}, false, None); ++It)
2889 GenerateArg(Args, It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot,
2890 It->Path, SA);
2891 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It)
2892 GenerateArg(Args, OPT_iframework, It->Path, SA);
2893 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It)
2894 GenerateArg(Args, OPT_iframeworkwithsysroot, It->Path, SA);
2895
2896 // Add the paths for the various language specific isystem flags.
2897 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It)
2898 GenerateArg(Args, OPT_c_isystem, It->Path, SA);
2899 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It)
2900 GenerateArg(Args, OPT_cxx_isystem, It->Path, SA);
2901 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It)
2902 GenerateArg(Args, OPT_objc_isystem, It->Path, SA);
2903 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It)
2904 GenerateArg(Args, OPT_objcxx_isystem, It->Path, SA);
2905
2906 // Add the internal paths from a driver that detects standard include paths.
2907 // Note: Some paths that came from "-internal-isystem" arguments may have
2908 // already been generated as "-isystem". If that's the case, their position on
2909 // command line was such that this has no semantic impact on include paths.
2910 for (; It < End &&
2911 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true);
2912 ++It) {
2913 OptSpecifier Opt = It->Group == frontend::System
2914 ? OPT_internal_isystem
2915 : OPT_internal_externc_isystem;
2916 GenerateArg(Args, Opt, It->Path, SA);
2917 }
2918
2919 assert(It == End && "Unhandled HeaderSearchOption::Entry.");
2920
2921 // Add the path prefixes which are implicitly treated as being system headers.
2922 for (const auto &P : Opts.SystemHeaderPrefixes) {
2923 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix
2924 : OPT_no_system_header_prefix;
2925 GenerateArg(Args, Opt, P.Prefix, SA);
2926 }
2927
2928 for (const std::string &F : Opts.VFSOverlayFiles)
2929 GenerateArg(Args, OPT_ivfsoverlay, F, SA);
2930 }
2931
ParseHeaderSearchArgs(HeaderSearchOptions & Opts,ArgList & Args,DiagnosticsEngine & Diags,const std::string & WorkingDir)2932 static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args,
2933 DiagnosticsEngine &Diags,
2934 const std::string &WorkingDir) {
2935 unsigned NumErrorsBefore = Diags.getNumErrors();
2936
2937 HeaderSearchOptions *HeaderSearchOpts = &Opts;
2938
2939 #define HEADER_SEARCH_OPTION_WITH_MARSHALLING( \
2940 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
2941 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
2942 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
2943 MERGER, EXTRACTOR, TABLE_INDEX) \
2944 PARSE_OPTION_WITH_MARSHALLING( \
2945 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \
2946 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX)
2947 #include "clang/Driver/Options.inc"
2948 #undef HEADER_SEARCH_OPTION_WITH_MARSHALLING
2949
2950 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ))
2951 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0);
2952
2953 // Canonicalize -fmodules-cache-path before storing it.
2954 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path));
2955 if (!(P.empty() || llvm::sys::path::is_absolute(P))) {
2956 if (WorkingDir.empty())
2957 llvm::sys::fs::make_absolute(P);
2958 else
2959 llvm::sys::fs::make_absolute(WorkingDir, P);
2960 }
2961 llvm::sys::path::remove_dots(P);
2962 Opts.ModuleCachePath = std::string(P.str());
2963
2964 // Only the -fmodule-file=<name>=<file> form.
2965 for (const auto *A : Args.filtered(OPT_fmodule_file)) {
2966 StringRef Val = A->getValue();
2967 if (Val.find('=') != StringRef::npos){
2968 auto Split = Val.split('=');
2969 Opts.PrebuiltModuleFiles.insert(
2970 {std::string(Split.first), std::string(Split.second)});
2971 }
2972 }
2973 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path))
2974 Opts.AddPrebuiltModulePath(A->getValue());
2975
2976 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) {
2977 StringRef MacroDef = A->getValue();
2978 Opts.ModulesIgnoreMacros.insert(
2979 llvm::CachedHashString(MacroDef.split('=').first));
2980 }
2981
2982 // Add -I..., -F..., and -index-header-map options in order.
2983 bool IsIndexHeaderMap = false;
2984 bool IsSysrootSpecified =
2985 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot);
2986 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) {
2987 if (A->getOption().matches(OPT_index_header_map)) {
2988 // -index-header-map applies to the next -I or -F.
2989 IsIndexHeaderMap = true;
2990 continue;
2991 }
2992
2993 frontend::IncludeDirGroup Group =
2994 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled;
2995
2996 bool IsFramework = A->getOption().matches(OPT_F);
2997 std::string Path = A->getValue();
2998
2999 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') {
3000 SmallString<32> Buffer;
3001 llvm::sys::path::append(Buffer, Opts.Sysroot,
3002 llvm::StringRef(A->getValue()).substr(1));
3003 Path = std::string(Buffer.str());
3004 }
3005
3006 Opts.AddPath(Path, Group, IsFramework,
3007 /*IgnoreSysroot*/ true);
3008 IsIndexHeaderMap = false;
3009 }
3010
3011 // Add -iprefix/-iwithprefix/-iwithprefixbefore options.
3012 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
3013 for (const auto *A :
3014 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) {
3015 if (A->getOption().matches(OPT_iprefix))
3016 Prefix = A->getValue();
3017 else if (A->getOption().matches(OPT_iwithprefix))
3018 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true);
3019 else
3020 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true);
3021 }
3022
3023 for (const auto *A : Args.filtered(OPT_idirafter))
3024 Opts.AddPath(A->getValue(), frontend::After, false, true);
3025 for (const auto *A : Args.filtered(OPT_iquote))
3026 Opts.AddPath(A->getValue(), frontend::Quoted, false, true);
3027 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot))
3028 Opts.AddPath(A->getValue(), frontend::System, false,
3029 !A->getOption().matches(OPT_iwithsysroot));
3030 for (const auto *A : Args.filtered(OPT_iframework))
3031 Opts.AddPath(A->getValue(), frontend::System, true, true);
3032 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot))
3033 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true,
3034 /*IgnoreSysRoot=*/false);
3035
3036 // Add the paths for the various language specific isystem flags.
3037 for (const auto *A : Args.filtered(OPT_c_isystem))
3038 Opts.AddPath(A->getValue(), frontend::CSystem, false, true);
3039 for (const auto *A : Args.filtered(OPT_cxx_isystem))
3040 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true);
3041 for (const auto *A : Args.filtered(OPT_objc_isystem))
3042 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true);
3043 for (const auto *A : Args.filtered(OPT_objcxx_isystem))
3044 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true);
3045
3046 // Add the internal paths from a driver that detects standard include paths.
3047 for (const auto *A :
3048 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) {
3049 frontend::IncludeDirGroup Group = frontend::System;
3050 if (A->getOption().matches(OPT_internal_externc_isystem))
3051 Group = frontend::ExternCSystem;
3052 Opts.AddPath(A->getValue(), Group, false, true);
3053 }
3054
3055 // Add the path prefixes which are implicitly treated as being system headers.
3056 for (const auto *A :
3057 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix))
3058 Opts.AddSystemHeaderPrefix(
3059 A->getValue(), A->getOption().matches(OPT_system_header_prefix));
3060
3061 for (const auto *A : Args.filtered(OPT_ivfsoverlay))
3062 Opts.AddVFSOverlayFile(A->getValue());
3063
3064 return Diags.getNumErrors() == NumErrorsBefore;
3065 }
3066
setLangDefaults(LangOptions & Opts,InputKind IK,const llvm::Triple & T,std::vector<std::string> & Includes,LangStandard::Kind LangStd)3067 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK,
3068 const llvm::Triple &T,
3069 std::vector<std::string> &Includes,
3070 LangStandard::Kind LangStd) {
3071 // Set some properties which depend solely on the input kind; it would be nice
3072 // to move these to the language standard, and have the driver resolve the
3073 // input kind + language standard.
3074 //
3075 // FIXME: Perhaps a better model would be for a single source file to have
3076 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std)
3077 // simultaneously active?
3078 if (IK.getLanguage() == Language::Asm) {
3079 Opts.AsmPreprocessor = 1;
3080 } else if (IK.isObjectiveC()) {
3081 Opts.ObjC = 1;
3082 }
3083
3084 if (LangStd == LangStandard::lang_unspecified) {
3085 // Based on the base language, pick one.
3086 switch (IK.getLanguage()) {
3087 case Language::Unknown:
3088 case Language::LLVM_IR:
3089 llvm_unreachable("Invalid input kind!");
3090 case Language::OpenCL:
3091 LangStd = LangStandard::lang_opencl12;
3092 break;
3093 case Language::OpenCLCXX:
3094 LangStd = LangStandard::lang_openclcpp;
3095 break;
3096 case Language::CUDA:
3097 LangStd = LangStandard::lang_cuda;
3098 break;
3099 case Language::Asm:
3100 case Language::C:
3101 #if defined(CLANG_DEFAULT_STD_C)
3102 LangStd = CLANG_DEFAULT_STD_C;
3103 #else
3104 // The PS4 uses C99 as the default C standard.
3105 if (T.isPS4())
3106 LangStd = LangStandard::lang_gnu99;
3107 else
3108 LangStd = LangStandard::lang_gnu17;
3109 #endif
3110 break;
3111 case Language::ObjC:
3112 #if defined(CLANG_DEFAULT_STD_C)
3113 LangStd = CLANG_DEFAULT_STD_C;
3114 #else
3115 LangStd = LangStandard::lang_gnu11;
3116 #endif
3117 break;
3118 case Language::CXX:
3119 case Language::ObjCXX:
3120 #if defined(CLANG_DEFAULT_STD_CXX)
3121 LangStd = CLANG_DEFAULT_STD_CXX;
3122 #else
3123 LangStd = LangStandard::lang_gnucxx14;
3124 #endif
3125 break;
3126 case Language::RenderScript:
3127 LangStd = LangStandard::lang_c99;
3128 break;
3129 case Language::HIP:
3130 LangStd = LangStandard::lang_hip;
3131 break;
3132 }
3133 }
3134
3135 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
3136 Opts.LangStd = LangStd;
3137 Opts.LineComment = Std.hasLineComments();
3138 Opts.C99 = Std.isC99();
3139 Opts.C11 = Std.isC11();
3140 Opts.C17 = Std.isC17();
3141 Opts.C2x = Std.isC2x();
3142 Opts.CPlusPlus = Std.isCPlusPlus();
3143 Opts.CPlusPlus11 = Std.isCPlusPlus11();
3144 Opts.CPlusPlus14 = Std.isCPlusPlus14();
3145 Opts.CPlusPlus17 = Std.isCPlusPlus17();
3146 Opts.CPlusPlus20 = Std.isCPlusPlus20();
3147 Opts.CPlusPlus2b = Std.isCPlusPlus2b();
3148 Opts.GNUMode = Std.isGNUMode();
3149 Opts.GNUCVersion = 0;
3150 Opts.HexFloats = Std.hasHexFloats();
3151 Opts.ImplicitInt = Std.hasImplicitInt();
3152
3153 Opts.CPlusPlusModules = Opts.CPlusPlus20;
3154
3155 // Set OpenCL Version.
3156 Opts.OpenCL = Std.isOpenCL();
3157 if (LangStd == LangStandard::lang_opencl10)
3158 Opts.OpenCLVersion = 100;
3159 else if (LangStd == LangStandard::lang_opencl11)
3160 Opts.OpenCLVersion = 110;
3161 else if (LangStd == LangStandard::lang_opencl12)
3162 Opts.OpenCLVersion = 120;
3163 else if (LangStd == LangStandard::lang_opencl20)
3164 Opts.OpenCLVersion = 200;
3165 else if (LangStd == LangStandard::lang_opencl30)
3166 Opts.OpenCLVersion = 300;
3167 else if (LangStd == LangStandard::lang_openclcpp)
3168 Opts.OpenCLCPlusPlusVersion = 100;
3169
3170 // OpenCL has some additional defaults.
3171 if (Opts.OpenCL) {
3172 Opts.AltiVec = 0;
3173 Opts.ZVector = 0;
3174 Opts.setDefaultFPContractMode(LangOptions::FPM_On);
3175 Opts.OpenCLCPlusPlus = Opts.CPlusPlus;
3176 Opts.OpenCLPipes = Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200;
3177 Opts.OpenCLGenericAddressSpace =
3178 Opts.OpenCLCPlusPlus || Opts.OpenCLVersion == 200;
3179
3180 // Include default header file for OpenCL.
3181 if (Opts.IncludeDefaultHeader) {
3182 if (Opts.DeclareOpenCLBuiltins) {
3183 // Only include base header file for builtin types and constants.
3184 Includes.push_back("opencl-c-base.h");
3185 } else {
3186 Includes.push_back("opencl-c.h");
3187 }
3188 }
3189 }
3190
3191 Opts.HIP = IK.getLanguage() == Language::HIP;
3192 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP;
3193 if (Opts.HIP) {
3194 // HIP toolchain does not support 'Fast' FPOpFusion in backends since it
3195 // fuses multiplication/addition instructions without contract flag from
3196 // device library functions in LLVM bitcode, which causes accuracy loss in
3197 // certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446.
3198 // For device library functions in bitcode to work, 'Strict' or 'Standard'
3199 // FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas'
3200 // FP contract option is used to allow fuse across statements in frontend
3201 // whereas respecting contract flag in backend.
3202 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas);
3203 } else if (Opts.CUDA) {
3204 // Allow fuse across statements disregarding pragmas.
3205 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast);
3206 }
3207
3208 Opts.RenderScript = IK.getLanguage() == Language::RenderScript;
3209
3210 // OpenCL and C++ both have bool, true, false keywords.
3211 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
3212
3213 // OpenCL has half keyword
3214 Opts.Half = Opts.OpenCL;
3215 }
3216
3217 /// Check if input file kind and language standard are compatible.
IsInputCompatibleWithStandard(InputKind IK,const LangStandard & S)3218 static bool IsInputCompatibleWithStandard(InputKind IK,
3219 const LangStandard &S) {
3220 switch (IK.getLanguage()) {
3221 case Language::Unknown:
3222 case Language::LLVM_IR:
3223 llvm_unreachable("should not parse language flags for this input");
3224
3225 case Language::C:
3226 case Language::ObjC:
3227 case Language::RenderScript:
3228 return S.getLanguage() == Language::C;
3229
3230 case Language::OpenCL:
3231 return S.getLanguage() == Language::OpenCL ||
3232 S.getLanguage() == Language::OpenCLCXX;
3233
3234 case Language::OpenCLCXX:
3235 return S.getLanguage() == Language::OpenCLCXX;
3236
3237 case Language::CXX:
3238 case Language::ObjCXX:
3239 return S.getLanguage() == Language::CXX;
3240
3241 case Language::CUDA:
3242 // FIXME: What -std= values should be permitted for CUDA compilations?
3243 return S.getLanguage() == Language::CUDA ||
3244 S.getLanguage() == Language::CXX;
3245
3246 case Language::HIP:
3247 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP;
3248
3249 case Language::Asm:
3250 // Accept (and ignore) all -std= values.
3251 // FIXME: The -std= value is not ignored; it affects the tokenization
3252 // and preprocessing rules if we're preprocessing this asm input.
3253 return true;
3254 }
3255
3256 llvm_unreachable("unexpected input language");
3257 }
3258
3259 /// Get language name for given input kind.
GetInputKindName(InputKind IK)3260 static const StringRef GetInputKindName(InputKind IK) {
3261 switch (IK.getLanguage()) {
3262 case Language::C:
3263 return "C";
3264 case Language::ObjC:
3265 return "Objective-C";
3266 case Language::CXX:
3267 return "C++";
3268 case Language::ObjCXX:
3269 return "Objective-C++";
3270 case Language::OpenCL:
3271 return "OpenCL";
3272 case Language::OpenCLCXX:
3273 return "C++ for OpenCL";
3274 case Language::CUDA:
3275 return "CUDA";
3276 case Language::RenderScript:
3277 return "RenderScript";
3278 case Language::HIP:
3279 return "HIP";
3280
3281 case Language::Asm:
3282 return "Asm";
3283 case Language::LLVM_IR:
3284 return "LLVM IR";
3285
3286 case Language::Unknown:
3287 break;
3288 }
3289 llvm_unreachable("unknown input language");
3290 }
3291
GenerateLangArgs(const LangOptions & Opts,SmallVectorImpl<const char * > & Args,StringAllocator SA,const llvm::Triple & T,InputKind IK)3292 void CompilerInvocation::GenerateLangArgs(const LangOptions &Opts,
3293 SmallVectorImpl<const char *> &Args,
3294 StringAllocator SA,
3295 const llvm::Triple &T, InputKind IK) {
3296 if (IK.getFormat() == InputKind::Precompiled ||
3297 IK.getLanguage() == Language::LLVM_IR) {
3298 if (Opts.ObjCAutoRefCount)
3299 GenerateArg(Args, OPT_fobjc_arc, SA);
3300 if (Opts.PICLevel != 0)
3301 GenerateArg(Args, OPT_pic_level, Twine(Opts.PICLevel), SA);
3302 if (Opts.PIE)
3303 GenerateArg(Args, OPT_pic_is_pie, SA);
3304 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize))
3305 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA);
3306
3307 return;
3308 }
3309
3310 OptSpecifier StdOpt;
3311 switch (Opts.LangStd) {
3312 case LangStandard::lang_opencl10:
3313 case LangStandard::lang_opencl11:
3314 case LangStandard::lang_opencl12:
3315 case LangStandard::lang_opencl20:
3316 case LangStandard::lang_opencl30:
3317 case LangStandard::lang_openclcpp:
3318 StdOpt = OPT_cl_std_EQ;
3319 break;
3320 default:
3321 StdOpt = OPT_std_EQ;
3322 break;
3323 }
3324
3325 auto LangStandard = LangStandard::getLangStandardForKind(Opts.LangStd);
3326 GenerateArg(Args, StdOpt, LangStandard.getName(), SA);
3327
3328 if (Opts.IncludeDefaultHeader)
3329 GenerateArg(Args, OPT_finclude_default_header, SA);
3330 if (Opts.DeclareOpenCLBuiltins)
3331 GenerateArg(Args, OPT_fdeclare_opencl_builtins, SA);
3332
3333 const LangOptions *LangOpts = &Opts;
3334
3335 #define LANG_OPTION_WITH_MARSHALLING( \
3336 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
3337 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
3338 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
3339 MERGER, EXTRACTOR, TABLE_INDEX) \
3340 GENERATE_OPTION_WITH_MARSHALLING( \
3341 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \
3342 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX)
3343 #include "clang/Driver/Options.inc"
3344 #undef LANG_OPTION_WITH_MARSHALLING
3345
3346 // The '-fcf-protection=' option is generated by CodeGenOpts generator.
3347
3348 if (Opts.ObjC) {
3349 GenerateArg(Args, OPT_fobjc_runtime_EQ, Opts.ObjCRuntime.getAsString(), SA);
3350
3351 if (Opts.GC == LangOptions::GCOnly)
3352 GenerateArg(Args, OPT_fobjc_gc_only, SA);
3353 else if (Opts.GC == LangOptions::HybridGC)
3354 GenerateArg(Args, OPT_fobjc_gc, SA);
3355 else if (Opts.ObjCAutoRefCount == 1)
3356 GenerateArg(Args, OPT_fobjc_arc, SA);
3357
3358 if (Opts.ObjCWeakRuntime)
3359 GenerateArg(Args, OPT_fobjc_runtime_has_weak, SA);
3360
3361 if (Opts.ObjCWeak)
3362 GenerateArg(Args, OPT_fobjc_weak, SA);
3363
3364 if (Opts.ObjCSubscriptingLegacyRuntime)
3365 GenerateArg(Args, OPT_fobjc_subscripting_legacy_runtime, SA);
3366 }
3367
3368 if (Opts.GNUCVersion != 0) {
3369 unsigned Major = Opts.GNUCVersion / 100 / 100;
3370 unsigned Minor = (Opts.GNUCVersion / 100) % 100;
3371 unsigned Patch = Opts.GNUCVersion % 100;
3372 GenerateArg(Args, OPT_fgnuc_version_EQ,
3373 Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch), SA);
3374 }
3375
3376 if (Opts.IgnoreXCOFFVisibility)
3377 GenerateArg(Args, OPT_mignore_xcoff_visibility, SA);
3378
3379 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) {
3380 GenerateArg(Args, OPT_ftrapv, SA);
3381 GenerateArg(Args, OPT_ftrapv_handler, Opts.OverflowHandler, SA);
3382 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) {
3383 GenerateArg(Args, OPT_fwrapv, SA);
3384 }
3385
3386 if (Opts.MSCompatibilityVersion != 0) {
3387 unsigned Major = Opts.MSCompatibilityVersion / 10000000;
3388 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100;
3389 unsigned Subminor = Opts.MSCompatibilityVersion % 100000;
3390 GenerateArg(Args, OPT_fms_compatibility_version,
3391 Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor), SA);
3392 }
3393
3394 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS()) {
3395 if (!Opts.Trigraphs)
3396 GenerateArg(Args, OPT_fno_trigraphs, SA);
3397 } else {
3398 if (Opts.Trigraphs)
3399 GenerateArg(Args, OPT_ftrigraphs, SA);
3400 }
3401
3402 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200))
3403 GenerateArg(Args, OPT_fblocks, SA);
3404
3405 if (Opts.ConvergentFunctions &&
3406 !(Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) || Opts.SYCLIsDevice))
3407 GenerateArg(Args, OPT_fconvergent_functions, SA);
3408
3409 if (Opts.NoBuiltin && !Opts.Freestanding)
3410 GenerateArg(Args, OPT_fno_builtin, SA);
3411
3412 if (!Opts.NoBuiltin)
3413 for (const auto &Func : Opts.NoBuiltinFuncs)
3414 GenerateArg(Args, OPT_fno_builtin_, Func, SA);
3415
3416 if (Opts.LongDoubleSize == 128)
3417 GenerateArg(Args, OPT_mlong_double_128, SA);
3418 else if (Opts.LongDoubleSize == 64)
3419 GenerateArg(Args, OPT_mlong_double_64, SA);
3420
3421 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='.
3422
3423 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or
3424 // '-fopenmp-targets='.
3425 if (Opts.OpenMP && !Opts.OpenMPSimd) {
3426 GenerateArg(Args, OPT_fopenmp, SA);
3427
3428 if (Opts.OpenMP != 50)
3429 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA);
3430
3431 if (!Opts.OpenMPUseTLS)
3432 GenerateArg(Args, OPT_fnoopenmp_use_tls, SA);
3433
3434 if (Opts.OpenMPIsDevice)
3435 GenerateArg(Args, OPT_fopenmp_is_device, SA);
3436
3437 if (Opts.OpenMPIRBuilder)
3438 GenerateArg(Args, OPT_fopenmp_enable_irbuilder, SA);
3439 }
3440
3441 if (Opts.OpenMPSimd) {
3442 GenerateArg(Args, OPT_fopenmp_simd, SA);
3443
3444 if (Opts.OpenMP != 50)
3445 GenerateArg(Args, OPT_fopenmp_version_EQ, Twine(Opts.OpenMP), SA);
3446 }
3447
3448 if (Opts.OpenMPCUDANumSMs != 0)
3449 GenerateArg(Args, OPT_fopenmp_cuda_number_of_sm_EQ,
3450 Twine(Opts.OpenMPCUDANumSMs), SA);
3451
3452 if (Opts.OpenMPCUDABlocksPerSM != 0)
3453 GenerateArg(Args, OPT_fopenmp_cuda_blocks_per_sm_EQ,
3454 Twine(Opts.OpenMPCUDABlocksPerSM), SA);
3455
3456 if (Opts.OpenMPCUDAReductionBufNum != 1024)
3457 GenerateArg(Args, OPT_fopenmp_cuda_teams_reduction_recs_num_EQ,
3458 Twine(Opts.OpenMPCUDAReductionBufNum), SA);
3459
3460 if (!Opts.OMPTargetTriples.empty()) {
3461 std::string Targets;
3462 llvm::raw_string_ostream OS(Targets);
3463 llvm::interleave(
3464 Opts.OMPTargetTriples, OS,
3465 [&OS](const llvm::Triple &T) { OS << T.str(); }, ",");
3466 GenerateArg(Args, OPT_fopenmp_targets_EQ, OS.str(), SA);
3467 }
3468
3469 if (!Opts.OMPHostIRFile.empty())
3470 GenerateArg(Args, OPT_fopenmp_host_ir_file_path, Opts.OMPHostIRFile, SA);
3471
3472 if (Opts.OpenMPCUDAMode)
3473 GenerateArg(Args, OPT_fopenmp_cuda_mode, SA);
3474
3475 if (Opts.OpenMPCUDAForceFullRuntime)
3476 GenerateArg(Args, OPT_fopenmp_cuda_force_full_runtime, SA);
3477
3478 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are
3479 // generated from CodeGenOptions.
3480
3481 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast)
3482 GenerateArg(Args, OPT_ffp_contract, "fast", SA);
3483 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On)
3484 GenerateArg(Args, OPT_ffp_contract, "on", SA);
3485 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off)
3486 GenerateArg(Args, OPT_ffp_contract, "off", SA);
3487 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas)
3488 GenerateArg(Args, OPT_ffp_contract, "fast-honor-pragmas", SA);
3489
3490 for (StringRef Sanitizer : serializeSanitizerKinds(Opts.Sanitize))
3491 GenerateArg(Args, OPT_fsanitize_EQ, Sanitizer, SA);
3492
3493 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'.
3494 for (const std::string &F : Opts.NoSanitizeFiles)
3495 GenerateArg(Args, OPT_fsanitize_ignorelist_EQ, F, SA);
3496
3497 if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver3_8)
3498 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "3.8", SA);
3499 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver4)
3500 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "4.0", SA);
3501 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver6)
3502 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "6.0", SA);
3503 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver7)
3504 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "7.0", SA);
3505 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver9)
3506 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "9.0", SA);
3507 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver11)
3508 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "11.0", SA);
3509 else if (Opts.getClangABICompat() == LangOptions::ClangABI::Ver12)
3510 GenerateArg(Args, OPT_fclang_abi_compat_EQ, "12.0", SA);
3511
3512 if (Opts.getSignReturnAddressScope() ==
3513 LangOptions::SignReturnAddressScopeKind::All)
3514 GenerateArg(Args, OPT_msign_return_address_EQ, "all", SA);
3515 else if (Opts.getSignReturnAddressScope() ==
3516 LangOptions::SignReturnAddressScopeKind::NonLeaf)
3517 GenerateArg(Args, OPT_msign_return_address_EQ, "non-leaf", SA);
3518
3519 if (Opts.getSignReturnAddressKey() ==
3520 LangOptions::SignReturnAddressKeyKind::BKey)
3521 GenerateArg(Args, OPT_msign_return_address_key_EQ, "b_key", SA);
3522
3523 if (Opts.CXXABI)
3524 GenerateArg(Args, OPT_fcxx_abi_EQ, TargetCXXABI::getSpelling(*Opts.CXXABI),
3525 SA);
3526
3527 if (Opts.RelativeCXXABIVTables)
3528 GenerateArg(Args, OPT_fexperimental_relative_cxx_abi_vtables, SA);
3529 else
3530 GenerateArg(Args, OPT_fno_experimental_relative_cxx_abi_vtables, SA);
3531
3532 for (const auto &MP : Opts.MacroPrefixMap)
3533 GenerateArg(Args, OPT_fmacro_prefix_map_EQ, MP.first + "=" + MP.second, SA);
3534 }
3535
ParseLangArgs(LangOptions & Opts,ArgList & Args,InputKind IK,const llvm::Triple & T,std::vector<std::string> & Includes,DiagnosticsEngine & Diags)3536 bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args,
3537 InputKind IK, const llvm::Triple &T,
3538 std::vector<std::string> &Includes,
3539 DiagnosticsEngine &Diags) {
3540 unsigned NumErrorsBefore = Diags.getNumErrors();
3541
3542 if (IK.getFormat() == InputKind::Precompiled ||
3543 IK.getLanguage() == Language::LLVM_IR) {
3544 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the
3545 // PassManager in BackendUtil.cpp. They need to be initialized no matter
3546 // what the input type is.
3547 if (Args.hasArg(OPT_fobjc_arc))
3548 Opts.ObjCAutoRefCount = 1;
3549 // PICLevel and PIELevel are needed during code generation and this should
3550 // be set regardless of the input type.
3551 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
3552 Opts.PIE = Args.hasArg(OPT_pic_is_pie);
3553 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
3554 Diags, Opts.Sanitize);
3555
3556 return Diags.getNumErrors() == NumErrorsBefore;
3557 }
3558
3559 // Other LangOpts are only initialized when the input is not AST or LLVM IR.
3560 // FIXME: Should we really be parsing this for an Language::Asm input?
3561
3562 // FIXME: Cleanup per-file based stuff.
3563 LangStandard::Kind LangStd = LangStandard::lang_unspecified;
3564 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) {
3565 LangStd = LangStandard::getLangKind(A->getValue());
3566 if (LangStd == LangStandard::lang_unspecified) {
3567 Diags.Report(diag::err_drv_invalid_value)
3568 << A->getAsString(Args) << A->getValue();
3569 // Report supported standards with short description.
3570 for (unsigned KindValue = 0;
3571 KindValue != LangStandard::lang_unspecified;
3572 ++KindValue) {
3573 const LangStandard &Std = LangStandard::getLangStandardForKind(
3574 static_cast<LangStandard::Kind>(KindValue));
3575 if (IsInputCompatibleWithStandard(IK, Std)) {
3576 auto Diag = Diags.Report(diag::note_drv_use_standard);
3577 Diag << Std.getName() << Std.getDescription();
3578 unsigned NumAliases = 0;
3579 #define LANGSTANDARD(id, name, lang, desc, features)
3580 #define LANGSTANDARD_ALIAS(id, alias) \
3581 if (KindValue == LangStandard::lang_##id) ++NumAliases;
3582 #define LANGSTANDARD_ALIAS_DEPR(id, alias)
3583 #include "clang/Basic/LangStandards.def"
3584 Diag << NumAliases;
3585 #define LANGSTANDARD(id, name, lang, desc, features)
3586 #define LANGSTANDARD_ALIAS(id, alias) \
3587 if (KindValue == LangStandard::lang_##id) Diag << alias;
3588 #define LANGSTANDARD_ALIAS_DEPR(id, alias)
3589 #include "clang/Basic/LangStandards.def"
3590 }
3591 }
3592 } else {
3593 // Valid standard, check to make sure language and standard are
3594 // compatible.
3595 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
3596 if (!IsInputCompatibleWithStandard(IK, Std)) {
3597 Diags.Report(diag::err_drv_argument_not_allowed_with)
3598 << A->getAsString(Args) << GetInputKindName(IK);
3599 }
3600 }
3601 }
3602
3603 // -cl-std only applies for OpenCL language standards.
3604 // Override the -std option in this case.
3605 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) {
3606 LangStandard::Kind OpenCLLangStd
3607 = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
3608 .Cases("cl", "CL", LangStandard::lang_opencl10)
3609 .Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10)
3610 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11)
3611 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12)
3612 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20)
3613 .Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30)
3614 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp)
3615 .Default(LangStandard::lang_unspecified);
3616
3617 if (OpenCLLangStd == LangStandard::lang_unspecified) {
3618 Diags.Report(diag::err_drv_invalid_value)
3619 << A->getAsString(Args) << A->getValue();
3620 }
3621 else
3622 LangStd = OpenCLLangStd;
3623 }
3624
3625 // These need to be parsed now. They are used to set OpenCL defaults.
3626 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header);
3627 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins);
3628
3629 CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd);
3630
3631 // The key paths of codegen options defined in Options.td start with
3632 // "LangOpts->". Let's provide the expected variable name and type.
3633 LangOptions *LangOpts = &Opts;
3634
3635 #define LANG_OPTION_WITH_MARSHALLING( \
3636 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
3637 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
3638 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
3639 MERGER, EXTRACTOR, TABLE_INDEX) \
3640 PARSE_OPTION_WITH_MARSHALLING( \
3641 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \
3642 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX)
3643 #include "clang/Driver/Options.inc"
3644 #undef LANG_OPTION_WITH_MARSHALLING
3645
3646 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) {
3647 StringRef Name = A->getValue();
3648 if (Name == "full" || Name == "branch") {
3649 Opts.CFProtectionBranch = 1;
3650 }
3651 }
3652
3653 if ((Args.hasArg(OPT_fsycl_is_device) || Args.hasArg(OPT_fsycl_is_host)) &&
3654 !Args.hasArg(OPT_sycl_std_EQ)) {
3655 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to
3656 // provide -sycl-std=, we want to default it to whatever the default SYCL
3657 // version is. I could not find a way to express this with the options
3658 // tablegen because we still want this value to be SYCL_None when the user
3659 // is not in device or host mode.
3660 Opts.setSYCLVersion(LangOptions::SYCL_Default);
3661 }
3662
3663 if (Opts.ObjC) {
3664 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) {
3665 StringRef value = arg->getValue();
3666 if (Opts.ObjCRuntime.tryParse(value))
3667 Diags.Report(diag::err_drv_unknown_objc_runtime) << value;
3668 }
3669
3670 if (Args.hasArg(OPT_fobjc_gc_only))
3671 Opts.setGC(LangOptions::GCOnly);
3672 else if (Args.hasArg(OPT_fobjc_gc))
3673 Opts.setGC(LangOptions::HybridGC);
3674 else if (Args.hasArg(OPT_fobjc_arc)) {
3675 Opts.ObjCAutoRefCount = 1;
3676 if (!Opts.ObjCRuntime.allowsARC())
3677 Diags.Report(diag::err_arc_unsupported_on_runtime);
3678 }
3679
3680 // ObjCWeakRuntime tracks whether the runtime supports __weak, not
3681 // whether the feature is actually enabled. This is predominantly
3682 // determined by -fobjc-runtime, but we allow it to be overridden
3683 // from the command line for testing purposes.
3684 if (Args.hasArg(OPT_fobjc_runtime_has_weak))
3685 Opts.ObjCWeakRuntime = 1;
3686 else
3687 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak();
3688
3689 // ObjCWeak determines whether __weak is actually enabled.
3690 // Note that we allow -fno-objc-weak to disable this even in ARC mode.
3691 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) {
3692 if (!weakArg->getOption().matches(OPT_fobjc_weak)) {
3693 assert(!Opts.ObjCWeak);
3694 } else if (Opts.getGC() != LangOptions::NonGC) {
3695 Diags.Report(diag::err_objc_weak_with_gc);
3696 } else if (!Opts.ObjCWeakRuntime) {
3697 Diags.Report(diag::err_objc_weak_unsupported);
3698 } else {
3699 Opts.ObjCWeak = 1;
3700 }
3701 } else if (Opts.ObjCAutoRefCount) {
3702 Opts.ObjCWeak = Opts.ObjCWeakRuntime;
3703 }
3704
3705 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime))
3706 Opts.ObjCSubscriptingLegacyRuntime =
3707 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX);
3708 }
3709
3710 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) {
3711 // Check that the version has 1 to 3 components and the minor and patch
3712 // versions fit in two decimal digits.
3713 VersionTuple GNUCVer;
3714 bool Invalid = GNUCVer.tryParse(A->getValue());
3715 unsigned Major = GNUCVer.getMajor();
3716 unsigned Minor = GNUCVer.getMinor().getValueOr(0);
3717 unsigned Patch = GNUCVer.getSubminor().getValueOr(0);
3718 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) {
3719 Diags.Report(diag::err_drv_invalid_value)
3720 << A->getAsString(Args) << A->getValue();
3721 }
3722 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch;
3723 }
3724
3725 // In AIX OS, the -mignore-xcoff-visibility is enable by default if there is
3726 // no -fvisibility=* option.
3727 // This is the reason why '-fvisibility' needs to be always generated:
3728 // its absence implies '-mignore-xcoff-visibility'.
3729 //
3730 // Suppose the original cc1 command line does contain '-fvisibility default':
3731 // '-mignore-xcoff-visibility' should not be implied.
3732 // * If '-fvisibility' is not generated (as most options with default values
3733 // don't), its absence would imply '-mignore-xcoff-visibility'. This changes
3734 // the command line semantics.
3735 // * If '-fvisibility' is generated regardless of its presence and value,
3736 // '-mignore-xcoff-visibility' won't be implied and the command line
3737 // semantics are kept intact.
3738 //
3739 // When the original cc1 command line does **not** contain '-fvisibility',
3740 // '-mignore-xcoff-visibility' is implied. The generated command line will
3741 // contain both '-fvisibility default' and '-mignore-xcoff-visibility' and
3742 // subsequent calls to `CreateFromArgs`/`generateCC1CommandLine` will always
3743 // produce the same arguments.
3744
3745 if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) ||
3746 !Args.hasArg(OPT_fvisibility)))
3747 Opts.IgnoreXCOFFVisibility = 1;
3748
3749 if (Args.hasArg(OPT_ftrapv)) {
3750 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
3751 // Set the handler, if one is specified.
3752 Opts.OverflowHandler =
3753 std::string(Args.getLastArgValue(OPT_ftrapv_handler));
3754 }
3755 else if (Args.hasArg(OPT_fwrapv))
3756 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
3757
3758 Opts.MSCompatibilityVersion = 0;
3759 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) {
3760 VersionTuple VT;
3761 if (VT.tryParse(A->getValue()))
3762 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
3763 << A->getValue();
3764 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 +
3765 VT.getMinor().getValueOr(0) * 100000 +
3766 VT.getSubminor().getValueOr(0);
3767 }
3768
3769 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs
3770 // is specified, or -std is set to a conforming mode.
3771 // Trigraphs are disabled by default in c++1z onwards.
3772 // For z/OS, trigraphs are enabled by default (without regard to the above).
3773 Opts.Trigraphs =
3774 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS();
3775 Opts.Trigraphs =
3776 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs);
3777
3778 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL
3779 && Opts.OpenCLVersion == 200);
3780
3781 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) ||
3782 Opts.SYCLIsDevice ||
3783 Args.hasArg(OPT_fconvergent_functions);
3784
3785 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
3786 if (!Opts.NoBuiltin)
3787 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs);
3788 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128)
3789 ? 128
3790 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0;
3791 if (Opts.FastRelaxedMath)
3792 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast);
3793 llvm::sort(Opts.ModuleFeatures);
3794
3795 // -mrtd option
3796 if (Arg *A = Args.getLastArg(OPT_mrtd)) {
3797 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None)
3798 Diags.Report(diag::err_drv_argument_not_allowed_with)
3799 << A->getSpelling() << "-fdefault-calling-conv";
3800 else {
3801 if (T.getArch() != llvm::Triple::x86)
3802 Diags.Report(diag::err_drv_argument_not_allowed_with)
3803 << A->getSpelling() << T.getTriple();
3804 else
3805 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall);
3806 }
3807 }
3808
3809 // Check if -fopenmp is specified and set default version to 5.0.
3810 Opts.OpenMP = Args.hasArg(OPT_fopenmp) ? 50 : 0;
3811 // Check if -fopenmp-simd is specified.
3812 bool IsSimdSpecified =
3813 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd,
3814 /*Default=*/false);
3815 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified;
3816 Opts.OpenMPUseTLS =
3817 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls);
3818 Opts.OpenMPIsDevice =
3819 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device);
3820 Opts.OpenMPIRBuilder =
3821 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder);
3822 bool IsTargetSpecified =
3823 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ);
3824
3825 Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice;
3826
3827 if (Opts.OpenMP || Opts.OpenMPSimd) {
3828 if (int Version = getLastArgIntValue(
3829 Args, OPT_fopenmp_version_EQ,
3830 (IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags))
3831 Opts.OpenMP = Version;
3832 // Provide diagnostic when a given target is not expected to be an OpenMP
3833 // device or host.
3834 if (!Opts.OpenMPIsDevice) {
3835 switch (T.getArch()) {
3836 default:
3837 break;
3838 // Add unsupported host targets here:
3839 case llvm::Triple::nvptx:
3840 case llvm::Triple::nvptx64:
3841 Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str();
3842 break;
3843 }
3844 }
3845 }
3846
3847 // Set the flag to prevent the implementation from emitting device exception
3848 // handling code for those requiring so.
3849 if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) ||
3850 Opts.OpenCLCPlusPlus) {
3851 Opts.Exceptions = 0;
3852 Opts.CXXExceptions = 0;
3853 }
3854 if (Opts.OpenMPIsDevice && T.isNVPTX()) {
3855 Opts.OpenMPCUDANumSMs =
3856 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ,
3857 Opts.OpenMPCUDANumSMs, Diags);
3858 Opts.OpenMPCUDABlocksPerSM =
3859 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ,
3860 Opts.OpenMPCUDABlocksPerSM, Diags);
3861 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue(
3862 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ,
3863 Opts.OpenMPCUDAReductionBufNum, Diags);
3864 }
3865
3866 // Get the OpenMP target triples if any.
3867 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) {
3868 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit };
3869 auto getArchPtrSize = [](const llvm::Triple &T) {
3870 if (T.isArch16Bit())
3871 return Arch16Bit;
3872 if (T.isArch32Bit())
3873 return Arch32Bit;
3874 assert(T.isArch64Bit() && "Expected 64-bit architecture");
3875 return Arch64Bit;
3876 };
3877
3878 for (unsigned i = 0; i < A->getNumValues(); ++i) {
3879 llvm::Triple TT(A->getValue(i));
3880
3881 if (TT.getArch() == llvm::Triple::UnknownArch ||
3882 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() ||
3883 TT.getArch() == llvm::Triple::nvptx ||
3884 TT.getArch() == llvm::Triple::nvptx64 ||
3885 TT.getArch() == llvm::Triple::amdgcn ||
3886 TT.getArch() == llvm::Triple::x86 ||
3887 TT.getArch() == llvm::Triple::x86_64))
3888 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i);
3889 else if (getArchPtrSize(T) != getArchPtrSize(TT))
3890 Diags.Report(diag::err_drv_incompatible_omp_arch)
3891 << A->getValue(i) << T.str();
3892 else
3893 Opts.OMPTargetTriples.push_back(TT);
3894 }
3895 }
3896
3897 // Get OpenMP host file path if any and report if a non existent file is
3898 // found
3899 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) {
3900 Opts.OMPHostIRFile = A->getValue();
3901 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile))
3902 Diags.Report(diag::err_drv_omp_host_ir_file_not_found)
3903 << Opts.OMPHostIRFile;
3904 }
3905
3906 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options
3907 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) &&
3908 Args.hasArg(options::OPT_fopenmp_cuda_mode);
3909
3910 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options
3911 Opts.OpenMPCUDAForceFullRuntime =
3912 Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) &&
3913 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime);
3914
3915 // FIXME: Eliminate this dependency.
3916 unsigned Opt = getOptimizationLevel(Args, IK, Diags),
3917 OptSize = getOptimizationLevelSize(Args);
3918 Opts.Optimize = Opt != 0;
3919 Opts.OptimizeSize = OptSize != 0;
3920
3921 // This is the __NO_INLINE__ define, which just depends on things like the
3922 // optimization level and -fno-inline, not actually whether the backend has
3923 // inlining enabled.
3924 Opts.NoInlineDefine = !Opts.Optimize;
3925 if (Arg *InlineArg = Args.getLastArg(
3926 options::OPT_finline_functions, options::OPT_finline_hint_functions,
3927 options::OPT_fno_inline_functions, options::OPT_fno_inline))
3928 if (InlineArg->getOption().matches(options::OPT_fno_inline))
3929 Opts.NoInlineDefine = true;
3930
3931 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) {
3932 StringRef Val = A->getValue();
3933 if (Val == "fast")
3934 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast);
3935 else if (Val == "on")
3936 Opts.setDefaultFPContractMode(LangOptions::FPM_On);
3937 else if (Val == "off")
3938 Opts.setDefaultFPContractMode(LangOptions::FPM_Off);
3939 else if (Val == "fast-honor-pragmas")
3940 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas);
3941 else
3942 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
3943 }
3944
3945 // Parse -fsanitize= arguments.
3946 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
3947 Diags, Opts.Sanitize);
3948 Opts.NoSanitizeFiles = Args.getAllArgValues(OPT_fsanitize_ignorelist_EQ);
3949 std::vector<std::string> systemIgnorelists =
3950 Args.getAllArgValues(OPT_fsanitize_system_ignorelist_EQ);
3951 Opts.NoSanitizeFiles.insert(Opts.NoSanitizeFiles.end(),
3952 systemIgnorelists.begin(),
3953 systemIgnorelists.end());
3954
3955 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) {
3956 Opts.setClangABICompat(LangOptions::ClangABI::Latest);
3957
3958 StringRef Ver = A->getValue();
3959 std::pair<StringRef, StringRef> VerParts = Ver.split('.');
3960 unsigned Major, Minor = 0;
3961
3962 // Check the version number is valid: either 3.x (0 <= x <= 9) or
3963 // y or y.0 (4 <= y <= current version).
3964 if (!VerParts.first.startswith("0") &&
3965 !VerParts.first.getAsInteger(10, Major) &&
3966 3 <= Major && Major <= CLANG_VERSION_MAJOR &&
3967 (Major == 3 ? VerParts.second.size() == 1 &&
3968 !VerParts.second.getAsInteger(10, Minor)
3969 : VerParts.first.size() == Ver.size() ||
3970 VerParts.second == "0")) {
3971 // Got a valid version number.
3972 if (Major == 3 && Minor <= 8)
3973 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8);
3974 else if (Major <= 4)
3975 Opts.setClangABICompat(LangOptions::ClangABI::Ver4);
3976 else if (Major <= 6)
3977 Opts.setClangABICompat(LangOptions::ClangABI::Ver6);
3978 else if (Major <= 7)
3979 Opts.setClangABICompat(LangOptions::ClangABI::Ver7);
3980 else if (Major <= 9)
3981 Opts.setClangABICompat(LangOptions::ClangABI::Ver9);
3982 else if (Major <= 11)
3983 Opts.setClangABICompat(LangOptions::ClangABI::Ver11);
3984 else if (Major <= 12)
3985 Opts.setClangABICompat(LangOptions::ClangABI::Ver12);
3986 } else if (Ver != "latest") {
3987 Diags.Report(diag::err_drv_invalid_value)
3988 << A->getAsString(Args) << A->getValue();
3989 }
3990 }
3991
3992 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) {
3993 StringRef SignScope = A->getValue();
3994
3995 if (SignScope.equals_insensitive("none"))
3996 Opts.setSignReturnAddressScope(
3997 LangOptions::SignReturnAddressScopeKind::None);
3998 else if (SignScope.equals_insensitive("all"))
3999 Opts.setSignReturnAddressScope(
4000 LangOptions::SignReturnAddressScopeKind::All);
4001 else if (SignScope.equals_insensitive("non-leaf"))
4002 Opts.setSignReturnAddressScope(
4003 LangOptions::SignReturnAddressScopeKind::NonLeaf);
4004 else
4005 Diags.Report(diag::err_drv_invalid_value)
4006 << A->getAsString(Args) << SignScope;
4007
4008 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) {
4009 StringRef SignKey = A->getValue();
4010 if (!SignScope.empty() && !SignKey.empty()) {
4011 if (SignKey.equals_insensitive("a_key"))
4012 Opts.setSignReturnAddressKey(
4013 LangOptions::SignReturnAddressKeyKind::AKey);
4014 else if (SignKey.equals_insensitive("b_key"))
4015 Opts.setSignReturnAddressKey(
4016 LangOptions::SignReturnAddressKeyKind::BKey);
4017 else
4018 Diags.Report(diag::err_drv_invalid_value)
4019 << A->getAsString(Args) << SignKey;
4020 }
4021 }
4022 }
4023
4024 // The value can be empty, which indicates the system default should be used.
4025 StringRef CXXABI = Args.getLastArgValue(OPT_fcxx_abi_EQ);
4026 if (!CXXABI.empty()) {
4027 if (!TargetCXXABI::isABI(CXXABI)) {
4028 Diags.Report(diag::err_invalid_cxx_abi) << CXXABI;
4029 } else {
4030 auto Kind = TargetCXXABI::getKind(CXXABI);
4031 if (!TargetCXXABI::isSupportedCXXABI(T, Kind))
4032 Diags.Report(diag::err_unsupported_cxx_abi) << CXXABI << T.str();
4033 else
4034 Opts.CXXABI = Kind;
4035 }
4036 }
4037
4038 Opts.RelativeCXXABIVTables =
4039 Args.hasFlag(options::OPT_fexperimental_relative_cxx_abi_vtables,
4040 options::OPT_fno_experimental_relative_cxx_abi_vtables,
4041 TargetCXXABI::usesRelativeVTables(T));
4042
4043 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) {
4044 auto Split = StringRef(A).split('=');
4045 Opts.MacroPrefixMap.insert(
4046 {std::string(Split.first), std::string(Split.second)});
4047 }
4048
4049 return Diags.getNumErrors() == NumErrorsBefore;
4050 }
4051
isStrictlyPreprocessorAction(frontend::ActionKind Action)4052 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) {
4053 switch (Action) {
4054 case frontend::ASTDeclList:
4055 case frontend::ASTDump:
4056 case frontend::ASTPrint:
4057 case frontend::ASTView:
4058 case frontend::EmitAssembly:
4059 case frontend::EmitBC:
4060 case frontend::EmitHTML:
4061 case frontend::EmitLLVM:
4062 case frontend::EmitLLVMOnly:
4063 case frontend::EmitCodeGenOnly:
4064 case frontend::EmitObj:
4065 case frontend::FixIt:
4066 case frontend::GenerateModule:
4067 case frontend::GenerateModuleInterface:
4068 case frontend::GenerateHeaderModule:
4069 case frontend::GeneratePCH:
4070 case frontend::GenerateInterfaceStubs:
4071 case frontend::ParseSyntaxOnly:
4072 case frontend::ModuleFileInfo:
4073 case frontend::VerifyPCH:
4074 case frontend::PluginAction:
4075 case frontend::RewriteObjC:
4076 case frontend::RewriteTest:
4077 case frontend::RunAnalysis:
4078 case frontend::TemplightDump:
4079 case frontend::MigrateSource:
4080 return false;
4081
4082 case frontend::DumpCompilerOptions:
4083 case frontend::DumpRawTokens:
4084 case frontend::DumpTokens:
4085 case frontend::InitOnly:
4086 case frontend::PrintPreamble:
4087 case frontend::PrintPreprocessedInput:
4088 case frontend::RewriteMacros:
4089 case frontend::RunPreprocessorOnly:
4090 case frontend::PrintDependencyDirectivesSourceMinimizerOutput:
4091 return true;
4092 }
4093 llvm_unreachable("invalid frontend action");
4094 }
4095
GeneratePreprocessorArgs(PreprocessorOptions & Opts,SmallVectorImpl<const char * > & Args,CompilerInvocation::StringAllocator SA,const LangOptions & LangOpts,const FrontendOptions & FrontendOpts,const CodeGenOptions & CodeGenOpts)4096 static void GeneratePreprocessorArgs(PreprocessorOptions &Opts,
4097 SmallVectorImpl<const char *> &Args,
4098 CompilerInvocation::StringAllocator SA,
4099 const LangOptions &LangOpts,
4100 const FrontendOptions &FrontendOpts,
4101 const CodeGenOptions &CodeGenOpts) {
4102 PreprocessorOptions *PreprocessorOpts = &Opts;
4103
4104 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \
4105 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
4106 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
4107 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
4108 MERGER, EXTRACTOR, TABLE_INDEX) \
4109 GENERATE_OPTION_WITH_MARSHALLING( \
4110 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \
4111 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX)
4112 #include "clang/Driver/Options.inc"
4113 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING
4114
4115 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate)
4116 GenerateArg(Args, OPT_pch_through_hdrstop_use, SA);
4117
4118 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn)
4119 GenerateArg(Args, OPT_error_on_deserialized_pch_decl, D, SA);
4120
4121 if (Opts.PrecompiledPreambleBytes != std::make_pair(0u, false))
4122 GenerateArg(Args, OPT_preamble_bytes_EQ,
4123 Twine(Opts.PrecompiledPreambleBytes.first) + "," +
4124 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"),
4125 SA);
4126
4127 for (const auto &M : Opts.Macros) {
4128 // Don't generate __CET__ macro definitions. They are implied by the
4129 // -fcf-protection option that is generated elsewhere.
4130 if (M.first == "__CET__=1" && !M.second &&
4131 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch)
4132 continue;
4133 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn &&
4134 !CodeGenOpts.CFProtectionBranch)
4135 continue;
4136 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn &&
4137 CodeGenOpts.CFProtectionBranch)
4138 continue;
4139
4140 GenerateArg(Args, M.second ? OPT_U : OPT_D, M.first, SA);
4141 }
4142
4143 for (const auto &I : Opts.Includes) {
4144 // Don't generate OpenCL includes. They are implied by other flags that are
4145 // generated elsewhere.
4146 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader &&
4147 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") ||
4148 I == "opencl-c.h"))
4149 continue;
4150
4151 GenerateArg(Args, OPT_include, I, SA);
4152 }
4153
4154 for (const auto &CI : Opts.ChainedIncludes)
4155 GenerateArg(Args, OPT_chain_include, CI, SA);
4156
4157 for (const auto &RF : Opts.RemappedFiles)
4158 GenerateArg(Args, OPT_remap_file, RF.first + ";" + RF.second, SA);
4159
4160 // Don't handle LexEditorPlaceholders. It is implied by the action that is
4161 // generated elsewhere.
4162 }
4163
ParsePreprocessorArgs(PreprocessorOptions & Opts,ArgList & Args,DiagnosticsEngine & Diags,frontend::ActionKind Action,const FrontendOptions & FrontendOpts)4164 static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
4165 DiagnosticsEngine &Diags,
4166 frontend::ActionKind Action,
4167 const FrontendOptions &FrontendOpts) {
4168 unsigned NumErrorsBefore = Diags.getNumErrors();
4169
4170 PreprocessorOptions *PreprocessorOpts = &Opts;
4171
4172 #define PREPROCESSOR_OPTION_WITH_MARSHALLING( \
4173 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
4174 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
4175 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
4176 MERGER, EXTRACTOR, TABLE_INDEX) \
4177 PARSE_OPTION_WITH_MARSHALLING( \
4178 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \
4179 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX)
4180 #include "clang/Driver/Options.inc"
4181 #undef PREPROCESSOR_OPTION_WITH_MARSHALLING
4182
4183 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) ||
4184 Args.hasArg(OPT_pch_through_hdrstop_use);
4185
4186 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl))
4187 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue());
4188
4189 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) {
4190 StringRef Value(A->getValue());
4191 size_t Comma = Value.find(',');
4192 unsigned Bytes = 0;
4193 unsigned EndOfLine = 0;
4194
4195 if (Comma == StringRef::npos ||
4196 Value.substr(0, Comma).getAsInteger(10, Bytes) ||
4197 Value.substr(Comma + 1).getAsInteger(10, EndOfLine))
4198 Diags.Report(diag::err_drv_preamble_format);
4199 else {
4200 Opts.PrecompiledPreambleBytes.first = Bytes;
4201 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0);
4202 }
4203 }
4204
4205 // Add the __CET__ macro if a CFProtection option is set.
4206 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) {
4207 StringRef Name = A->getValue();
4208 if (Name == "branch")
4209 Opts.addMacroDef("__CET__=1");
4210 else if (Name == "return")
4211 Opts.addMacroDef("__CET__=2");
4212 else if (Name == "full")
4213 Opts.addMacroDef("__CET__=3");
4214 }
4215
4216 // Add macros from the command line.
4217 for (const auto *A : Args.filtered(OPT_D, OPT_U)) {
4218 if (A->getOption().matches(OPT_D))
4219 Opts.addMacroDef(A->getValue());
4220 else
4221 Opts.addMacroUndef(A->getValue());
4222 }
4223
4224 // Add the ordered list of -includes.
4225 for (const auto *A : Args.filtered(OPT_include))
4226 Opts.Includes.emplace_back(A->getValue());
4227
4228 for (const auto *A : Args.filtered(OPT_chain_include))
4229 Opts.ChainedIncludes.emplace_back(A->getValue());
4230
4231 for (const auto *A : Args.filtered(OPT_remap_file)) {
4232 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';');
4233
4234 if (Split.second.empty()) {
4235 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args);
4236 continue;
4237 }
4238
4239 Opts.addRemappedFile(Split.first, Split.second);
4240 }
4241
4242 // Always avoid lexing editor placeholders when we're just running the
4243 // preprocessor as we never want to emit the
4244 // "editor placeholder in source file" error in PP only mode.
4245 if (isStrictlyPreprocessorAction(Action))
4246 Opts.LexEditorPlaceholders = false;
4247
4248 return Diags.getNumErrors() == NumErrorsBefore;
4249 }
4250
GeneratePreprocessorOutputArgs(const PreprocessorOutputOptions & Opts,SmallVectorImpl<const char * > & Args,CompilerInvocation::StringAllocator SA,frontend::ActionKind Action)4251 static void GeneratePreprocessorOutputArgs(
4252 const PreprocessorOutputOptions &Opts, SmallVectorImpl<const char *> &Args,
4253 CompilerInvocation::StringAllocator SA, frontend::ActionKind Action) {
4254 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts;
4255
4256 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \
4257 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
4258 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
4259 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
4260 MERGER, EXTRACTOR, TABLE_INDEX) \
4261 GENERATE_OPTION_WITH_MARSHALLING( \
4262 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \
4263 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX)
4264 #include "clang/Driver/Options.inc"
4265 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING
4266
4267 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP;
4268 if (Generate_dM)
4269 GenerateArg(Args, OPT_dM, SA);
4270 if (!Generate_dM && Opts.ShowMacros)
4271 GenerateArg(Args, OPT_dD, SA);
4272 }
4273
ParsePreprocessorOutputArgs(PreprocessorOutputOptions & Opts,ArgList & Args,DiagnosticsEngine & Diags,frontend::ActionKind Action)4274 static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
4275 ArgList &Args, DiagnosticsEngine &Diags,
4276 frontend::ActionKind Action) {
4277 unsigned NumErrorsBefore = Diags.getNumErrors();
4278
4279 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts;
4280
4281 #define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING( \
4282 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
4283 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
4284 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
4285 MERGER, EXTRACTOR, TABLE_INDEX) \
4286 PARSE_OPTION_WITH_MARSHALLING( \
4287 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \
4288 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX)
4289 #include "clang/Driver/Options.inc"
4290 #undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING
4291
4292 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(OPT_dM);
4293 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD);
4294
4295 return Diags.getNumErrors() == NumErrorsBefore;
4296 }
4297
GenerateTargetArgs(const TargetOptions & Opts,SmallVectorImpl<const char * > & Args,CompilerInvocation::StringAllocator SA)4298 static void GenerateTargetArgs(const TargetOptions &Opts,
4299 SmallVectorImpl<const char *> &Args,
4300 CompilerInvocation::StringAllocator SA) {
4301 const TargetOptions *TargetOpts = &Opts;
4302 #define TARGET_OPTION_WITH_MARSHALLING( \
4303 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
4304 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
4305 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
4306 MERGER, EXTRACTOR, TABLE_INDEX) \
4307 GENERATE_OPTION_WITH_MARSHALLING( \
4308 Args, SA, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \
4309 IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, TABLE_INDEX)
4310 #include "clang/Driver/Options.inc"
4311 #undef TARGET_OPTION_WITH_MARSHALLING
4312
4313 if (!Opts.SDKVersion.empty())
4314 GenerateArg(Args, OPT_target_sdk_version_EQ, Opts.SDKVersion.getAsString(),
4315 SA);
4316 }
4317
ParseTargetArgs(TargetOptions & Opts,ArgList & Args,DiagnosticsEngine & Diags)4318 static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args,
4319 DiagnosticsEngine &Diags) {
4320 unsigned NumErrorsBefore = Diags.getNumErrors();
4321
4322 TargetOptions *TargetOpts = &Opts;
4323
4324 #define TARGET_OPTION_WITH_MARSHALLING( \
4325 PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
4326 HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
4327 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
4328 MERGER, EXTRACTOR, TABLE_INDEX) \
4329 PARSE_OPTION_WITH_MARSHALLING( \
4330 Args, Diags, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \
4331 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX)
4332 #include "clang/Driver/Options.inc"
4333 #undef TARGET_OPTION_WITH_MARSHALLING
4334
4335 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) {
4336 llvm::VersionTuple Version;
4337 if (Version.tryParse(A->getValue()))
4338 Diags.Report(diag::err_drv_invalid_value)
4339 << A->getAsString(Args) << A->getValue();
4340 else
4341 Opts.SDKVersion = Version;
4342 }
4343
4344 return Diags.getNumErrors() == NumErrorsBefore;
4345 }
4346
CreateFromArgsImpl(CompilerInvocation & Res,ArrayRef<const char * > CommandLineArgs,DiagnosticsEngine & Diags,const char * Argv0)4347 bool CompilerInvocation::CreateFromArgsImpl(
4348 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs,
4349 DiagnosticsEngine &Diags, const char *Argv0) {
4350 unsigned NumErrorsBefore = Diags.getNumErrors();
4351
4352 // Parse the arguments.
4353 const OptTable &Opts = getDriverOptTable();
4354 const unsigned IncludedFlagsBitmask = options::CC1Option;
4355 unsigned MissingArgIndex, MissingArgCount;
4356 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex,
4357 MissingArgCount, IncludedFlagsBitmask);
4358 LangOptions &LangOpts = *Res.getLangOpts();
4359
4360 // Check for missing argument error.
4361 if (MissingArgCount)
4362 Diags.Report(diag::err_drv_missing_argument)
4363 << Args.getArgString(MissingArgIndex) << MissingArgCount;
4364
4365 // Issue errors on unknown arguments.
4366 for (const auto *A : Args.filtered(OPT_UNKNOWN)) {
4367 auto ArgString = A->getAsString(Args);
4368 std::string Nearest;
4369 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1)
4370 Diags.Report(diag::err_drv_unknown_argument) << ArgString;
4371 else
4372 Diags.Report(diag::err_drv_unknown_argument_with_suggestion)
4373 << ArgString << Nearest;
4374 }
4375
4376 ParseFileSystemArgs(Res.getFileSystemOpts(), Args, Diags);
4377 ParseMigratorArgs(Res.getMigratorOpts(), Args, Diags);
4378 ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags);
4379 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags,
4380 /*DefaultDiagColor=*/false);
4381 ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags, LangOpts.IsHeaderFile);
4382 // FIXME: We shouldn't have to pass the DashX option around here
4383 InputKind DashX = Res.getFrontendOpts().DashX;
4384 ParseTargetArgs(Res.getTargetOpts(), Args, Diags);
4385 llvm::Triple T(Res.getTargetOpts().Triple);
4386 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args, Diags,
4387 Res.getFileSystemOpts().WorkingDir);
4388
4389 ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes,
4390 Diags);
4391 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
4392 LangOpts.ObjCExceptions = 1;
4393
4394 if (LangOpts.CUDA) {
4395 // During CUDA device-side compilation, the aux triple is the
4396 // triple used for host compilation.
4397 if (LangOpts.CUDAIsDevice)
4398 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
4399 }
4400
4401 // Set the triple of the host for OpenMP device compile.
4402 if (LangOpts.OpenMPIsDevice)
4403 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
4404
4405 ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T,
4406 Res.getFrontendOpts().OutputFile, LangOpts);
4407
4408 // FIXME: Override value name discarding when asan or msan is used because the
4409 // backend passes depend on the name of the alloca in order to print out
4410 // names.
4411 Res.getCodeGenOpts().DiscardValueNames &=
4412 !LangOpts.Sanitize.has(SanitizerKind::Address) &&
4413 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) &&
4414 !LangOpts.Sanitize.has(SanitizerKind::Memory) &&
4415 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory);
4416
4417 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags,
4418 Res.getFrontendOpts().ProgramAction,
4419 Res.getFrontendOpts());
4420 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args, Diags,
4421 Res.getFrontendOpts().ProgramAction);
4422
4423 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args, Diags,
4424 Res.getFrontendOpts().ProgramAction,
4425 Res.getPreprocessorOutputOpts().ShowLineMarkers);
4426 if (!Res.getDependencyOutputOpts().OutputFile.empty() &&
4427 Res.getDependencyOutputOpts().Targets.empty())
4428 Diags.Report(diag::err_fe_dependency_file_requires_MT);
4429
4430 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses.
4431 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses &&
4432 !Res.getLangOpts()->Sanitize.empty()) {
4433 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false;
4434 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored);
4435 }
4436
4437 // Store the command-line for using in the CodeView backend.
4438 Res.getCodeGenOpts().Argv0 = Argv0;
4439 Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs;
4440
4441 FixupInvocation(Res, Diags, Args, DashX);
4442
4443 return Diags.getNumErrors() == NumErrorsBefore;
4444 }
4445
CreateFromArgs(CompilerInvocation & Invocation,ArrayRef<const char * > CommandLineArgs,DiagnosticsEngine & Diags,const char * Argv0)4446 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation,
4447 ArrayRef<const char *> CommandLineArgs,
4448 DiagnosticsEngine &Diags,
4449 const char *Argv0) {
4450 CompilerInvocation DummyInvocation;
4451
4452 return RoundTrip(
4453 [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs,
4454 DiagnosticsEngine &Diags, const char *Argv0) {
4455 return CreateFromArgsImpl(Invocation, CommandLineArgs, Diags, Argv0);
4456 },
4457 [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args,
4458 StringAllocator SA) { Invocation.generateCC1CommandLine(Args, SA); },
4459 Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0);
4460 }
4461
getModuleHash() const4462 std::string CompilerInvocation::getModuleHash() const {
4463 // Note: For QoI reasons, the things we use as a hash here should all be
4464 // dumped via the -module-info flag.
4465 using llvm::hash_code;
4466 using llvm::hash_value;
4467 using llvm::hash_combine;
4468 using llvm::hash_combine_range;
4469
4470 // Start the signature with the compiler version.
4471 // FIXME: We'd rather use something more cryptographically sound than
4472 // CityHash, but this will do for now.
4473 hash_code code = hash_value(getClangFullRepositoryVersion());
4474
4475 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off
4476 // and getClangFullRepositoryVersion() doesn't include git revision.
4477 code = hash_combine(code, serialization::VERSION_MAJOR,
4478 serialization::VERSION_MINOR);
4479
4480 // Extend the signature with the language options
4481 #define LANGOPT(Name, Bits, Default, Description) \
4482 code = hash_combine(code, LangOpts->Name);
4483 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
4484 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name()));
4485 #define BENIGN_LANGOPT(Name, Bits, Default, Description)
4486 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
4487 #include "clang/Basic/LangOptions.def"
4488
4489 for (StringRef Feature : LangOpts->ModuleFeatures)
4490 code = hash_combine(code, Feature);
4491
4492 code = hash_combine(code, LangOpts->ObjCRuntime);
4493 const auto &BCN = LangOpts->CommentOpts.BlockCommandNames;
4494 code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end()));
4495
4496 // Extend the signature with the target options.
4497 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU,
4498 TargetOpts->TuneCPU, TargetOpts->ABI);
4499 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten)
4500 code = hash_combine(code, FeatureAsWritten);
4501
4502 // Extend the signature with preprocessor options.
4503 const PreprocessorOptions &ppOpts = getPreprocessorOpts();
4504 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts();
4505 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord);
4506
4507 for (const auto &I : getPreprocessorOpts().Macros) {
4508 // If we're supposed to ignore this macro for the purposes of modules,
4509 // don't put it into the hash.
4510 if (!hsOpts.ModulesIgnoreMacros.empty()) {
4511 // Check whether we're ignoring this macro.
4512 StringRef MacroDef = I.first;
4513 if (hsOpts.ModulesIgnoreMacros.count(
4514 llvm::CachedHashString(MacroDef.split('=').first)))
4515 continue;
4516 }
4517
4518 code = hash_combine(code, I.first, I.second);
4519 }
4520
4521 // Extend the signature with the sysroot and other header search options.
4522 code = hash_combine(code, hsOpts.Sysroot,
4523 hsOpts.ModuleFormat,
4524 hsOpts.UseDebugInfo,
4525 hsOpts.UseBuiltinIncludes,
4526 hsOpts.UseStandardSystemIncludes,
4527 hsOpts.UseStandardCXXIncludes,
4528 hsOpts.UseLibcxx,
4529 hsOpts.ModulesValidateDiagnosticOptions);
4530 code = hash_combine(code, hsOpts.ResourceDir);
4531
4532 if (hsOpts.ModulesStrictContextHash) {
4533 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(),
4534 hsOpts.SystemHeaderPrefixes.end());
4535 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(),
4536 hsOpts.UserEntries.end());
4537 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC,
4538 hsOpts.UserEntries.size(), UEC);
4539
4540 const DiagnosticOptions &diagOpts = getDiagnosticOpts();
4541 #define DIAGOPT(Name, Bits, Default) \
4542 code = hash_combine(code, diagOpts.Name);
4543 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \
4544 code = hash_combine(code, diagOpts.get##Name());
4545 #include "clang/Basic/DiagnosticOptions.def"
4546 #undef DIAGOPT
4547 #undef ENUM_DIAGOPT
4548 }
4549
4550 // Extend the signature with the user build path.
4551 code = hash_combine(code, hsOpts.ModuleUserBuildPath);
4552
4553 // Extend the signature with the module file extensions.
4554 const FrontendOptions &frontendOpts = getFrontendOpts();
4555 for (const auto &ext : frontendOpts.ModuleFileExtensions) {
4556 code = ext->hashExtension(code);
4557 }
4558
4559 // When compiling with -gmodules, also hash -fdebug-prefix-map as it
4560 // affects the debug info in the PCM.
4561 if (getCodeGenOpts().DebugTypeExtRefs)
4562 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap)
4563 code = hash_combine(code, KeyValue.first, KeyValue.second);
4564
4565 // Extend the signature with the enabled sanitizers, if at least one is
4566 // enabled. Sanitizers which cannot affect AST generation aren't hashed.
4567 SanitizerSet SanHash = LangOpts->Sanitize;
4568 SanHash.clear(getPPTransparentSanitizers());
4569 if (!SanHash.empty())
4570 code = hash_combine(code, SanHash.Mask);
4571
4572 return toString(llvm::APInt(64, code), 36, /*Signed=*/false);
4573 }
4574
generateCC1CommandLine(SmallVectorImpl<const char * > & Args,StringAllocator SA) const4575 void CompilerInvocation::generateCC1CommandLine(
4576 SmallVectorImpl<const char *> &Args, StringAllocator SA) const {
4577 llvm::Triple T(TargetOpts->Triple);
4578
4579 GenerateFileSystemArgs(FileSystemOpts, Args, SA);
4580 GenerateMigratorArgs(MigratorOpts, Args, SA);
4581 GenerateAnalyzerArgs(*AnalyzerOpts, Args, SA);
4582 GenerateDiagnosticArgs(*DiagnosticOpts, Args, SA, false);
4583 GenerateFrontendArgs(FrontendOpts, Args, SA, LangOpts->IsHeaderFile);
4584 GenerateTargetArgs(*TargetOpts, Args, SA);
4585 GenerateHeaderSearchArgs(*HeaderSearchOpts, Args, SA);
4586 GenerateLangArgs(*LangOpts, Args, SA, T, FrontendOpts.DashX);
4587 GenerateCodeGenArgs(CodeGenOpts, Args, SA, T, FrontendOpts.OutputFile,
4588 &*LangOpts);
4589 GeneratePreprocessorArgs(*PreprocessorOpts, Args, SA, *LangOpts, FrontendOpts,
4590 CodeGenOpts);
4591 GeneratePreprocessorOutputArgs(PreprocessorOutputOpts, Args, SA,
4592 FrontendOpts.ProgramAction);
4593 GenerateDependencyOutputArgs(DependencyOutputOpts, Args, SA);
4594 }
4595
4596 IntrusiveRefCntPtr<llvm::vfs::FileSystem>
createVFSFromCompilerInvocation(const CompilerInvocation & CI,DiagnosticsEngine & Diags)4597 clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI,
4598 DiagnosticsEngine &Diags) {
4599 return createVFSFromCompilerInvocation(CI, Diags,
4600 llvm::vfs::getRealFileSystem());
4601 }
4602
4603 IntrusiveRefCntPtr<llvm::vfs::FileSystem>
createVFSFromCompilerInvocation(const CompilerInvocation & CI,DiagnosticsEngine & Diags,IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS)4604 clang::createVFSFromCompilerInvocation(
4605 const CompilerInvocation &CI, DiagnosticsEngine &Diags,
4606 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) {
4607 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty())
4608 return BaseFS;
4609
4610 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS;
4611 // earlier vfs files are on the bottom
4612 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) {
4613 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer =
4614 Result->getBufferForFile(File);
4615 if (!Buffer) {
4616 Diags.Report(diag::err_missing_vfs_overlay_file) << File;
4617 continue;
4618 }
4619
4620 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML(
4621 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File,
4622 /*DiagContext*/ nullptr, Result);
4623 if (!FS) {
4624 Diags.Report(diag::err_invalid_vfs_overlay) << File;
4625 continue;
4626 }
4627
4628 Result = FS;
4629 }
4630 return Result;
4631 }
4632