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/Diagnostic.h"
16#include "clang/Basic/DiagnosticDriver.h"
17#include "clang/Basic/DiagnosticFrontend.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/XRayInstr.h"
29#include "clang/Config/config.h"
30#include "clang/Frontend/CommandLineSourceLoc.h"
31#include "clang/Frontend/DependencyOutputOptions.h"
32#include "clang/Frontend/FrontendOptions.h"
33#include "clang/Frontend/MigratorOptions.h"
34#include "clang/Frontend/PreprocessorOutputOptions.h"
35#include "clang/Frontend/SSAFOptions.h"
36#include "clang/Frontend/TextDiagnosticBuffer.h"
37#include "clang/Frontend/Utils.h"
38#include "clang/Lex/HeaderSearchOptions.h"
39#include "clang/Lex/PreprocessorOptions.h"
40#include "clang/Options/Options.h"
41#include "clang/Serialization/ASTBitCodes.h"
42#include "clang/Serialization/ModuleFileExtension.h"
43#include "clang/StaticAnalyzer/Core/AnalyzerOptions.h"
44#include "llvm/ADT/APInt.h"
45#include "llvm/ADT/ArrayRef.h"
46#include "llvm/ADT/CachedHashString.h"
47#include "llvm/ADT/FloatingPointMode.h"
48#include "llvm/ADT/STLExtras.h"
49#include "llvm/ADT/SmallVector.h"
50#include "llvm/ADT/StringRef.h"
51#include "llvm/ADT/StringSwitch.h"
52#include "llvm/ADT/Twine.h"
53#include "llvm/Config/llvm-config.h"
54#include "llvm/Frontend/Debug/Options.h"
55#include "llvm/IR/DebugInfoMetadata.h"
56#include "llvm/Linker/Linker.h"
57#include "llvm/MC/MCTargetOptions.h"
58#include "llvm/Option/Arg.h"
59#include "llvm/Option/ArgList.h"
60#include "llvm/Option/OptSpecifier.h"
61#include "llvm/Option/OptTable.h"
62#include "llvm/Option/Option.h"
63#include "llvm/ProfileData/InstrProfReader.h"
64#include "llvm/Remarks/HotnessThresholdParser.h"
65#include "llvm/Support/CodeGen.h"
66#include "llvm/Support/Compiler.h"
67#include "llvm/Support/Error.h"
68#include "llvm/Support/ErrorHandling.h"
69#include "llvm/Support/ErrorOr.h"
70#include "llvm/Support/FileSystem.h"
71#include "llvm/Support/HashBuilder.h"
72#include "llvm/Support/MathExtras.h"
73#include "llvm/Support/MemoryBuffer.h"
74#include "llvm/Support/Path.h"
75#include "llvm/Support/Process.h"
76#include "llvm/Support/Regex.h"
77#include "llvm/Support/VersionTuple.h"
78#include "llvm/Support/VirtualFileSystem.h"
79#include "llvm/Support/raw_ostream.h"
80#include "llvm/Target/TargetOptions.h"
81#include "llvm/TargetParser/Host.h"
82#include "llvm/TargetParser/Triple.h"
83#include <algorithm>
84#include <cassert>
85#include <cstddef>
86#include <cstring>
87#include <ctime>
88#include <fstream>
89#include <limits>
90#include <memory>
91#include <optional>
92#include <string>
93#include <tuple>
94#include <type_traits>
95#include <utility>
96#include <vector>
97
98using namespace clang;
99using namespace options;
100using namespace llvm::opt;
101
102//===----------------------------------------------------------------------===//
103// Helpers.
104//===----------------------------------------------------------------------===//
105
106// Parse misexpect tolerance argument value.
107// Valid option values are integers in the range [0, 100)
108static Expected<std::optional<uint32_t>> parseToleranceOption(StringRef Arg) {
109 uint32_t Val;
110 if (Arg.getAsInteger(Radix: 10, Result&: Val))
111 return llvm::createStringError(EC: llvm::inconvertibleErrorCode(),
112 Fmt: "Not an integer: %s", Vals: Arg.data());
113 return Val;
114}
115
116//===----------------------------------------------------------------------===//
117// Initialization.
118//===----------------------------------------------------------------------===//
119
120template <class T> std::shared_ptr<T> make_shared_copy(const T &X) {
121 return std::make_shared<T>(X);
122}
123
124CompilerInvocationBase::CompilerInvocationBase()
125 : LangOpts(std::make_shared<LangOptions>()),
126 TargetOpts(std::make_shared<TargetOptions>()),
127 DiagnosticOpts(std::make_shared<DiagnosticOptions>()),
128 HSOpts(std::make_shared<HeaderSearchOptions>()),
129 PPOpts(std::make_shared<PreprocessorOptions>()),
130 AnalyzerOpts(std::make_shared<AnalyzerOptions>()),
131 MigratorOpts(std::make_shared<MigratorOptions>()),
132 APINotesOpts(std::make_shared<APINotesOptions>()),
133 CodeGenOpts(std::make_shared<CodeGenOptions>()),
134 FSOpts(std::make_shared<FileSystemOptions>()),
135 FrontendOpts(std::make_shared<FrontendOptions>()),
136 DependencyOutputOpts(std::make_shared<DependencyOutputOptions>()),
137 PreprocessorOutputOpts(std::make_shared<PreprocessorOutputOptions>()),
138 SSAFOpts(std::make_shared<ssaf::SSAFOptions>()) {}
139
140CompilerInvocationBase &
141CompilerInvocationBase::deep_copy_assign(const CompilerInvocationBase &X) {
142 if (this != &X) {
143 LangOpts = make_shared_copy(X: X.getLangOpts());
144 TargetOpts = make_shared_copy(X: X.getTargetOpts());
145 DiagnosticOpts = make_shared_copy(X: X.getDiagnosticOpts());
146 HSOpts = make_shared_copy(X: X.getHeaderSearchOpts());
147 PPOpts = make_shared_copy(X: X.getPreprocessorOpts());
148 AnalyzerOpts = make_shared_copy(X: X.getAnalyzerOpts());
149 MigratorOpts = make_shared_copy(X: X.getMigratorOpts());
150 APINotesOpts = make_shared_copy(X: X.getAPINotesOpts());
151 CodeGenOpts = make_shared_copy(X: X.getCodeGenOpts());
152 FSOpts = make_shared_copy(X: X.getFileSystemOpts());
153 FrontendOpts = make_shared_copy(X: X.getFrontendOpts());
154 DependencyOutputOpts = make_shared_copy(X: X.getDependencyOutputOpts());
155 PreprocessorOutputOpts = make_shared_copy(X: X.getPreprocessorOutputOpts());
156 SSAFOpts = make_shared_copy(X: X.getSSAFOpts());
157 }
158 return *this;
159}
160
161CompilerInvocationBase &
162CompilerInvocationBase::shallow_copy_assign(const CompilerInvocationBase &X) {
163 if (this != &X) {
164 LangOpts = X.LangOpts;
165 TargetOpts = X.TargetOpts;
166 DiagnosticOpts = X.DiagnosticOpts;
167 HSOpts = X.HSOpts;
168 PPOpts = X.PPOpts;
169 AnalyzerOpts = X.AnalyzerOpts;
170 MigratorOpts = X.MigratorOpts;
171 APINotesOpts = X.APINotesOpts;
172 CodeGenOpts = X.CodeGenOpts;
173 FSOpts = X.FSOpts;
174 FrontendOpts = X.FrontendOpts;
175 DependencyOutputOpts = X.DependencyOutputOpts;
176 PreprocessorOutputOpts = X.PreprocessorOutputOpts;
177 SSAFOpts = X.SSAFOpts;
178 }
179 return *this;
180}
181
182CompilerInvocation::CompilerInvocation(const CowCompilerInvocation &X)
183 : CompilerInvocationBase(EmptyConstructor{}) {
184 CompilerInvocationBase::deep_copy_assign(X);
185}
186
187CompilerInvocation &
188CompilerInvocation::operator=(const CowCompilerInvocation &X) {
189 CompilerInvocationBase::deep_copy_assign(X);
190 return *this;
191}
192
193template <typename T>
194T &ensureOwned(std::shared_ptr<T> &Storage) {
195 if (Storage.use_count() > 1)
196 Storage = std::make_shared<T>(*Storage);
197 return *Storage;
198}
199
200LangOptions &CowCompilerInvocation::getMutLangOpts() {
201 return ensureOwned(Storage&: LangOpts);
202}
203
204TargetOptions &CowCompilerInvocation::getMutTargetOpts() {
205 return ensureOwned(Storage&: TargetOpts);
206}
207
208DiagnosticOptions &CowCompilerInvocation::getMutDiagnosticOpts() {
209 return ensureOwned(Storage&: DiagnosticOpts);
210}
211
212HeaderSearchOptions &CowCompilerInvocation::getMutHeaderSearchOpts() {
213 return ensureOwned(Storage&: HSOpts);
214}
215
216PreprocessorOptions &CowCompilerInvocation::getMutPreprocessorOpts() {
217 return ensureOwned(Storage&: PPOpts);
218}
219
220AnalyzerOptions &CowCompilerInvocation::getMutAnalyzerOpts() {
221 return ensureOwned(Storage&: AnalyzerOpts);
222}
223
224MigratorOptions &CowCompilerInvocation::getMutMigratorOpts() {
225 return ensureOwned(Storage&: MigratorOpts);
226}
227
228APINotesOptions &CowCompilerInvocation::getMutAPINotesOpts() {
229 return ensureOwned(Storage&: APINotesOpts);
230}
231
232CodeGenOptions &CowCompilerInvocation::getMutCodeGenOpts() {
233 return ensureOwned(Storage&: CodeGenOpts);
234}
235
236FileSystemOptions &CowCompilerInvocation::getMutFileSystemOpts() {
237 return ensureOwned(Storage&: FSOpts);
238}
239
240FrontendOptions &CowCompilerInvocation::getMutFrontendOpts() {
241 return ensureOwned(Storage&: FrontendOpts);
242}
243
244ssaf::SSAFOptions &CowCompilerInvocation::getMutSSAFOpts() {
245 return ensureOwned(Storage&: SSAFOpts);
246}
247
248DependencyOutputOptions &CowCompilerInvocation::getMutDependencyOutputOpts() {
249 return ensureOwned(Storage&: DependencyOutputOpts);
250}
251
252PreprocessorOutputOptions &
253CowCompilerInvocation::getMutPreprocessorOutputOpts() {
254 return ensureOwned(Storage&: PreprocessorOutputOpts);
255}
256
257//===----------------------------------------------------------------------===//
258// Normalizers
259//===----------------------------------------------------------------------===//
260
261using ArgumentConsumer = CompilerInvocation::ArgumentConsumer;
262
263static llvm::StringRef lookupStrInTable(unsigned Offset) {
264 return getDriverOptTable().getStrTable()[Offset];
265}
266
267#define SIMPLE_ENUM_VALUE_TABLE
268#include "clang/Options/Options.inc"
269#undef SIMPLE_ENUM_VALUE_TABLE
270
271static std::optional<bool> normalizeSimpleFlag(OptSpecifier Opt,
272 unsigned TableIndex,
273 const ArgList &Args,
274 DiagnosticsEngine &Diags) {
275 if (Args.hasArg(Ids: Opt))
276 return true;
277 return std::nullopt;
278}
279
280static std::optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt,
281 unsigned,
282 const ArgList &Args,
283 DiagnosticsEngine &) {
284 if (Args.hasArg(Ids: Opt))
285 return false;
286 return std::nullopt;
287}
288
289/// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but
290/// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with
291/// unnecessary template instantiations and just ignore it with a variadic
292/// argument.
293static void denormalizeSimpleFlag(ArgumentConsumer Consumer,
294 unsigned SpellingOffset, Option::OptionClass,
295 unsigned, /*T*/...) {
296 Consumer(lookupStrInTable(Offset: SpellingOffset));
297}
298static void denormalizeSimpleFlag(ArgumentConsumer Consumer,
299 const Twine &Spelling, Option::OptionClass,
300 unsigned, /*T*/...) {
301 Consumer(Spelling);
302}
303
304template <typename T> static constexpr bool is_uint64_t_convertible() {
305 return !std::is_same_v<T, uint64_t> && llvm::is_integral_or_enum<T>::value;
306}
307
308template <typename T,
309 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false>
310static auto makeFlagToValueNormalizer(T Value) {
311 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args,
312 DiagnosticsEngine &) -> std::optional<T> {
313 if (Args.hasArg(Ids: Opt))
314 return Value;
315 return std::nullopt;
316 };
317}
318
319template <typename T,
320 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false>
321static auto makeFlagToValueNormalizer(T Value) {
322 return makeFlagToValueNormalizer(Value: uint64_t(Value));
323}
324
325static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue,
326 OptSpecifier OtherOpt) {
327 return [Value, OtherValue,
328 OtherOpt](OptSpecifier Opt, unsigned, const ArgList &Args,
329 DiagnosticsEngine &) -> std::optional<bool> {
330 if (const Arg *A = Args.getLastArg(Ids: Opt, Ids: OtherOpt)) {
331 return A->getOption().matches(ID: Opt) ? Value : OtherValue;
332 }
333 return std::nullopt;
334 };
335}
336
337static auto makeBooleanOptionDenormalizer(bool Value) {
338 return [Value](ArgumentConsumer Consumer, unsigned SpellingOffset,
339 Option::OptionClass, unsigned, bool KeyPath) {
340 if (KeyPath == Value)
341 Consumer(lookupStrInTable(Offset: SpellingOffset));
342 };
343}
344
345static void denormalizeStringImpl(ArgumentConsumer Consumer,
346 const Twine &Spelling,
347 Option::OptionClass OptClass, unsigned,
348 const Twine &Value) {
349 switch (OptClass) {
350 case Option::SeparateClass:
351 case Option::JoinedOrSeparateClass:
352 case Option::JoinedAndSeparateClass:
353 Consumer(Spelling);
354 Consumer(Value);
355 break;
356 case Option::JoinedClass:
357 case Option::CommaJoinedClass:
358 Consumer(Spelling + Value);
359 break;
360 default:
361 llvm_unreachable("Cannot denormalize an option with option class "
362 "incompatible with string denormalization.");
363 }
364}
365
366template <typename T>
367static void
368denormalizeString(ArgumentConsumer Consumer, unsigned SpellingOffset,
369 Option::OptionClass OptClass, unsigned TableIndex, T Value) {
370 denormalizeStringImpl(Consumer, Spelling: lookupStrInTable(Offset: SpellingOffset), OptClass,
371 TableIndex, Value: Twine(Value));
372}
373
374template <typename T>
375static void denormalizeString(ArgumentConsumer Consumer, const Twine &Spelling,
376 Option::OptionClass OptClass, unsigned TableIndex,
377 T Value) {
378 denormalizeStringImpl(Consumer, Spelling, OptClass, TableIndex, Value: Twine(Value));
379}
380
381static std::optional<SimpleEnumValue>
382findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) {
383 for (int I = 0, E = Table.Size; I != E; ++I)
384 if (Name == Table.Table[I].Name)
385 return Table.Table[I];
386
387 return std::nullopt;
388}
389
390static std::optional<SimpleEnumValue>
391findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) {
392 for (int I = 0, E = Table.Size; I != E; ++I)
393 if (Value == Table.Table[I].Value)
394 return Table.Table[I];
395
396 return std::nullopt;
397}
398
399static std::optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt,
400 unsigned TableIndex,
401 const ArgList &Args,
402 DiagnosticsEngine &Diags) {
403 assert(TableIndex < SimpleEnumValueTablesSize);
404 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex];
405
406 auto *Arg = Args.getLastArg(Ids: Opt);
407 if (!Arg)
408 return std::nullopt;
409
410 StringRef ArgValue = Arg->getValue();
411 if (auto MaybeEnumVal = findValueTableByName(Table, Name: ArgValue))
412 return MaybeEnumVal->Value;
413
414 Diags.Report(DiagID: diag::err_drv_invalid_value)
415 << Arg->getAsString(Args) << ArgValue;
416 return std::nullopt;
417}
418
419static void denormalizeSimpleEnumImpl(ArgumentConsumer Consumer,
420 unsigned SpellingOffset,
421 Option::OptionClass OptClass,
422 unsigned TableIndex, unsigned Value) {
423 assert(TableIndex < SimpleEnumValueTablesSize);
424 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex];
425 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) {
426 denormalizeString(Consumer, Spelling: lookupStrInTable(Offset: SpellingOffset), OptClass,
427 TableIndex, Value: MaybeEnumVal->Name);
428 } else {
429 llvm_unreachable("The simple enum value was not correctly defined in "
430 "the tablegen option description");
431 }
432}
433
434template <typename T>
435static void denormalizeSimpleEnum(ArgumentConsumer Consumer,
436 unsigned SpellingOffset,
437 Option::OptionClass OptClass,
438 unsigned TableIndex, T Value) {
439 return denormalizeSimpleEnumImpl(Consumer, SpellingOffset, OptClass,
440 TableIndex, Value: static_cast<unsigned>(Value));
441}
442
443static std::optional<std::string> normalizeString(OptSpecifier Opt,
444 int TableIndex,
445 const ArgList &Args,
446 DiagnosticsEngine &Diags) {
447 auto *Arg = Args.getLastArg(Ids: Opt);
448 if (!Arg)
449 return std::nullopt;
450 return std::string(Arg->getValue());
451}
452
453template <typename IntTy>
454static std::optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int,
455 const ArgList &Args,
456 DiagnosticsEngine &Diags) {
457 auto *Arg = Args.getLastArg(Ids: Opt);
458 if (!Arg)
459 return std::nullopt;
460 IntTy Res;
461 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) {
462 Diags.Report(DiagID: diag::err_drv_invalid_int_value)
463 << Arg->getAsString(Args) << Arg->getValue();
464 return std::nullopt;
465 }
466 return Res;
467}
468
469static std::optional<std::vector<std::string>>
470normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args,
471 DiagnosticsEngine &) {
472 return Args.getAllArgValues(Id: Opt);
473}
474
475static void denormalizeStringVector(ArgumentConsumer Consumer,
476 unsigned SpellingOffset,
477 Option::OptionClass OptClass,
478 unsigned TableIndex,
479 const std::vector<std::string> &Values) {
480 switch (OptClass) {
481 case Option::CommaJoinedClass: {
482 std::string CommaJoinedValue;
483 if (!Values.empty()) {
484 CommaJoinedValue.append(str: Values.front());
485 for (const std::string &Value : llvm::drop_begin(RangeOrContainer: Values, N: 1)) {
486 CommaJoinedValue.append(s: ",");
487 CommaJoinedValue.append(str: Value);
488 }
489 }
490 denormalizeString(Consumer, SpellingOffset,
491 OptClass: Option::OptionClass::JoinedClass, TableIndex,
492 Value: CommaJoinedValue);
493 break;
494 }
495 case Option::JoinedClass:
496 case Option::SeparateClass:
497 case Option::JoinedOrSeparateClass:
498 for (const std::string &Value : Values)
499 denormalizeString(Consumer, SpellingOffset, OptClass, TableIndex, Value);
500 break;
501 default:
502 llvm_unreachable("Cannot denormalize an option with option class "
503 "incompatible with string vector denormalization.");
504 }
505}
506
507static std::optional<std::string> normalizeTriple(OptSpecifier Opt,
508 int TableIndex,
509 const ArgList &Args,
510 DiagnosticsEngine &Diags) {
511 auto *Arg = Args.getLastArg(Ids: Opt);
512 if (!Arg)
513 return std::nullopt;
514 return llvm::Triple::normalize(Str: Arg->getValue());
515}
516
517#define PARSE_OPTION_WITH_MARSHALLING( \
518 ARGS, DIAGS, PREFIX_TYPE, SPELLING_OFFSET, ID, KIND, GROUP, ALIAS, \
519 ALIASARGS, FLAGS, VISIBILITY, PARAM, HELPTEXT, HELPTEXTSFORVARIANTS, \
520 METAVAR, VALUES, SUBCOMMANDIDS_OFFSET, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
521 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
522 TABLE_INDEX) \
523 if ((VISIBILITY) & options::CC1Option) { \
524 KEYPATH = static_cast<decltype(KEYPATH)>(DEFAULT_VALUE); \
525 if (IMPLIED_CHECK) \
526 KEYPATH = static_cast<decltype(KEYPATH)>(IMPLIED_VALUE); \
527 if (SHOULD_PARSE) \
528 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \
529 KEYPATH = static_cast<decltype(KEYPATH)>(*MaybeValue); \
530 }
531
532#define GENERATE_OPTION_WITH_MARSHALLING( \
533 CONSUMER, PREFIX_TYPE, SPELLING_OFFSET, ID, KIND, GROUP, ALIAS, ALIASARGS, \
534 FLAGS, VISIBILITY, PARAM, HELPTEXT, HELPTEXTSFORVARIANTS, METAVAR, VALUES, \
535 SUBCOMMANDIDS_OFFSET, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \
536 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, TABLE_INDEX) \
537 if ((VISIBILITY) & options::CC1Option) { \
538 if (ALWAYS_EMIT || (KEYPATH != static_cast<decltype(KEYPATH)>( \
539 ((IMPLIED_CHECK) ? (IMPLIED_VALUE) \
540 : (DEFAULT_VALUE))))) \
541 DENORMALIZER(CONSUMER, SPELLING_OFFSET, Option::KIND##Class, \
542 TABLE_INDEX, KEYPATH); \
543 }
544
545static StringRef GetInputKindName(InputKind IK);
546
547static bool FixupInvocation(CompilerInvocation &Invocation,
548 DiagnosticsEngine &Diags, const ArgList &Args,
549 InputKind IK) {
550 unsigned NumErrorsBefore = Diags.getNumErrors();
551
552 LangOptions &LangOpts = Invocation.getLangOpts();
553 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts();
554 TargetOptions &TargetOpts = Invocation.getTargetOpts();
555 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts();
556 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument;
557 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents;
558 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents;
559 CodeGenOpts.DisableFree = FrontendOpts.DisableFree;
560 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex;
561 if (FrontendOpts.ShowStats)
562 CodeGenOpts.ClearASTBeforeBackend = false;
563 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage();
564 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables;
565 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening;
566 LangOpts.CurrentModule = LangOpts.ModuleName;
567
568 llvm::Triple T(TargetOpts.Triple);
569 llvm::Triple::ArchType Arch = T.getArch();
570
571 CodeGenOpts.CodeModel = TargetOpts.CodeModel;
572 CodeGenOpts.LargeDataThreshold = TargetOpts.LargeDataThreshold;
573
574 if (CodeGenOpts.getExceptionHandling() !=
575 CodeGenOptions::ExceptionHandlingKind::Default &&
576 T.isWindowsMSVCEnvironment())
577 Diags.Report(DiagID: diag::err_fe_invalid_exception_model)
578 << static_cast<unsigned>(CodeGenOpts.getExceptionHandling()) << T.str();
579
580 if (LangOpts.AppleKext && !LangOpts.CPlusPlus)
581 Diags.Report(DiagID: diag::warn_c_kext);
582
583 if (LangOpts.NewAlignOverride &&
584 !llvm::isPowerOf2_32(Value: LangOpts.NewAlignOverride)) {
585 Arg *A = Args.getLastArg(Ids: OPT_fnew_alignment_EQ);
586 Diags.Report(DiagID: diag::err_fe_invalid_alignment)
587 << A->getAsString(Args) << A->getValue();
588 LangOpts.NewAlignOverride = 0;
589 }
590
591 // The -f[no-]raw-string-literals option is only valid in C and in C++
592 // standards before C++11.
593 if (LangOpts.CPlusPlus11) {
594 if (Args.hasArg(Ids: OPT_fraw_string_literals, Ids: OPT_fno_raw_string_literals)) {
595 Args.claimAllArgs(Ids: OPT_fraw_string_literals, Ids: OPT_fno_raw_string_literals);
596 Diags.Report(DiagID: diag::warn_drv_fraw_string_literals_in_cxx11)
597 << bool(LangOpts.RawStringLiterals);
598 }
599
600 // Do not allow disabling raw string literals in C++11 or later.
601 LangOpts.RawStringLiterals = true;
602 }
603
604 if (Args.hasArg(Ids: OPT_freflection) && !LangOpts.CPlusPlus26) {
605 Diags.Report(DiagID: diag::err_drv_reflection_requires_cxx26)
606 << Args.getLastArg(Ids: options::OPT_freflection)->getAsString(Args);
607 }
608
609 LangOpts.NamedLoops =
610 Args.hasFlag(Pos: OPT_fnamed_loops, Neg: OPT_fno_named_loops, Default: LangOpts.C2y);
611
612 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host.
613 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost)
614 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device"
615 << "-fsycl-is-host";
616
617 // SYCL requires C++; reject C inputs on both device and host.
618 if ((LangOpts.SYCLIsDevice || LangOpts.SYCLIsHost) && !LangOpts.CPlusPlus)
619 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
620 << GetInputKindName(IK) << "-fsycl";
621
622 if (Args.hasArg(Ids: OPT_fgnu89_inline) && LangOpts.CPlusPlus)
623 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
624 << "-fgnu89-inline" << GetInputKindName(IK);
625
626 if (Args.hasArg(Ids: OPT_hlsl_entrypoint) && !LangOpts.HLSL)
627 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
628 << "-hlsl-entry" << GetInputKindName(IK);
629
630 if (Args.hasArg(Ids: OPT_fdx_rootsignature_version) && !LangOpts.HLSL)
631 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
632 << "-fdx-rootsignature-version" << GetInputKindName(IK);
633
634 if (Args.hasArg(Ids: OPT_fdx_rootsignature_define) && !LangOpts.HLSL)
635 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
636 << "-fdx-rootsignature-define" << GetInputKindName(IK);
637
638 if (Args.hasArg(Ids: OPT_fdx_semantic_signature_packing_mode_EQ) && !LangOpts.HLSL)
639 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
640 << "-fdx-semantic-signature-packing-mode" << GetInputKindName(IK);
641
642 if (Args.hasArg(Ids: OPT_fgpu_allow_device_init) && !LangOpts.HIP)
643 Diags.Report(DiagID: diag::warn_ignored_hip_only_option)
644 << Args.getLastArg(Ids: OPT_fgpu_allow_device_init)->getAsString(Args);
645
646 if (Args.hasArg(Ids: OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP)
647 Diags.Report(DiagID: diag::warn_ignored_hip_only_option)
648 << Args.getLastArg(Ids: OPT_gpu_max_threads_per_block_EQ)->getAsString(Args);
649
650 // HLSL invocations should always have -Wconversion, -Wvector-conversion, and
651 // -Wmatrix-conversion by default.
652 if (LangOpts.HLSL) {
653 auto &Warnings = Invocation.getDiagnosticOpts().Warnings;
654 if (!llvm::is_contained(Range&: Warnings, Element: "conversion"))
655 Warnings.insert(position: Warnings.begin(), x: "conversion");
656 if (!llvm::is_contained(Range&: Warnings, Element: "vector-conversion"))
657 Warnings.insert(position: Warnings.begin(), x: "vector-conversion");
658 if (!llvm::is_contained(Range&: Warnings, Element: "matrix-conversion"))
659 Warnings.insert(position: Warnings.begin(), x: "matrix-conversion");
660 }
661
662 // When these options are used, the compiler is allowed to apply
663 // optimizations that may affect the final result. For example
664 // (x+y)+z is transformed to x+(y+z) but may not give the same
665 // final result; it's not value safe.
666 // Another example can be to simplify x/x to 1.0 but x could be 0.0, INF
667 // or NaN. Final result may then differ. An error is issued when the eval
668 // method is set with one of these options.
669 if (Args.hasArg(Ids: OPT_ffp_eval_method_EQ)) {
670 if (LangOpts.ApproxFunc)
671 Diags.Report(DiagID: diag::err_incompatible_fp_eval_method_options) << 0;
672 if (LangOpts.AllowFPReassoc)
673 Diags.Report(DiagID: diag::err_incompatible_fp_eval_method_options) << 1;
674 if (LangOpts.AllowRecip)
675 Diags.Report(DiagID: diag::err_incompatible_fp_eval_method_options) << 2;
676 }
677
678 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0.
679 // This option should be deprecated for CL > 1.0 because
680 // this option was added for compatibility with OpenCL 1.0.
681 if (Args.getLastArg(Ids: OPT_cl_strict_aliasing) &&
682 (LangOpts.getOpenCLCompatibleVersion() > 100))
683 Diags.Report(DiagID: diag::warn_option_invalid_ocl_version)
684 << LangOpts.getOpenCLVersionString()
685 << Args.getLastArg(Ids: OPT_cl_strict_aliasing)->getAsString(Args);
686
687 if (Arg *A = Args.getLastArg(Ids: OPT_fdefault_calling_conv_EQ)) {
688 auto DefaultCC = LangOpts.getDefaultCallingConv();
689
690 bool emitError = (DefaultCC == LangOptions::DCC_FastCall ||
691 DefaultCC == LangOptions::DCC_StdCall) &&
692 Arch != llvm::Triple::x86;
693 emitError |= (DefaultCC == LangOptions::DCC_VectorCall ||
694 DefaultCC == LangOptions::DCC_RegCall) &&
695 !T.isX86();
696 emitError |= DefaultCC == LangOptions::DCC_RtdCall && Arch != llvm::Triple::m68k;
697 if (emitError)
698 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
699 << A->getSpelling() << T.getTriple();
700 }
701
702 return Diags.getNumErrors() == NumErrorsBefore;
703}
704
705//===----------------------------------------------------------------------===//
706// Deserialization (from args)
707//===----------------------------------------------------------------------===//
708
709static void GenerateArg(ArgumentConsumer Consumer,
710 llvm::opt::OptSpecifier OptSpecifier) {
711 Option Opt = getDriverOptTable().getOption(Opt: OptSpecifier);
712 denormalizeSimpleFlag(Consumer, Spelling: Opt.getPrefixedName(),
713 Option::OptionClass::FlagClass, 0);
714}
715
716static void GenerateArg(ArgumentConsumer Consumer,
717 llvm::opt::OptSpecifier OptSpecifier,
718 const Twine &Value) {
719 Option Opt = getDriverOptTable().getOption(Opt: OptSpecifier);
720 denormalizeString(Consumer, Spelling: Opt.getPrefixedName(), OptClass: Opt.getKind(), TableIndex: 0, Value);
721}
722
723// Parse command line arguments into CompilerInvocation.
724using ParseFn =
725 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>,
726 DiagnosticsEngine &, const char *)>;
727
728// Generate command line arguments from CompilerInvocation.
729using GenerateFn = llvm::function_ref<void(
730 CompilerInvocation &, SmallVectorImpl<const char *> &,
731 CompilerInvocation::StringAllocator)>;
732
733/// May perform round-trip of command line arguments. By default, the round-trip
734/// is enabled in assert builds. This can be overwritten at run-time via the
735/// "-round-trip-args" and "-no-round-trip-args" command line flags, or via the
736/// ForceRoundTrip parameter.
737///
738/// During round-trip, the command line arguments are parsed into a dummy
739/// CompilerInvocation, which is used to generate the command line arguments
740/// again. The real CompilerInvocation is then created by parsing the generated
741/// arguments, not the original ones. This (in combination with tests covering
742/// argument behavior) ensures the generated command line is complete (doesn't
743/// drop/mangle any arguments).
744///
745/// Finally, we check the command line that was used to create the real
746/// CompilerInvocation instance. By default, we compare it to the command line
747/// the real CompilerInvocation generates. This checks whether the generator is
748/// deterministic. If \p CheckAgainstOriginalInvocation is enabled, we instead
749/// compare it to the original command line to verify the original command-line
750/// was canonical and can round-trip exactly.
751static bool RoundTrip(ParseFn Parse, GenerateFn Generate,
752 CompilerInvocation &RealInvocation,
753 CompilerInvocation &DummyInvocation,
754 ArrayRef<const char *> CommandLineArgs,
755 DiagnosticsEngine &Diags, const char *Argv0,
756 bool CheckAgainstOriginalInvocation = false,
757 bool ForceRoundTrip = false) {
758#ifndef NDEBUG
759 bool DoRoundTripDefault = true;
760#else
761 bool DoRoundTripDefault = false;
762#endif
763
764 bool DoRoundTrip = DoRoundTripDefault;
765 if (ForceRoundTrip) {
766 DoRoundTrip = true;
767 } else {
768 for (const auto *Arg : CommandLineArgs) {
769 if (Arg == StringRef("-round-trip-args"))
770 DoRoundTrip = true;
771 if (Arg == StringRef("-no-round-trip-args"))
772 DoRoundTrip = false;
773 }
774 }
775
776 // If round-trip was not requested, simply run the parser with the real
777 // invocation diagnostics.
778 if (!DoRoundTrip)
779 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0);
780
781 // Serializes quoted (and potentially escaped) arguments.
782 auto SerializeArgs = [](ArrayRef<const char *> Args) {
783 std::string Buffer;
784 llvm::raw_string_ostream OS(Buffer);
785 for (const char *Arg : Args) {
786 llvm::sys::printArg(OS, Arg, /*Quote=*/true);
787 OS << ' ';
788 }
789 return Buffer;
790 };
791
792 // Setup a dummy DiagnosticsEngine.
793 DiagnosticOptions DummyDiagOpts;
794 DiagnosticsEngine DummyDiags(DiagnosticIDs::create(), DummyDiagOpts);
795 DummyDiags.setClient(client: new TextDiagnosticBuffer());
796
797 // Run the first parse on the original arguments with the dummy invocation and
798 // diagnostics.
799 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) ||
800 DummyDiags.getNumWarnings() != 0) {
801 // If the first parse did not succeed, it must be user mistake (invalid
802 // command line arguments). We won't be able to generate arguments that
803 // would reproduce the same result. Let's fail again with the real
804 // invocation and diagnostics, so all side-effects of parsing are visible.
805 unsigned NumWarningsBefore = Diags.getNumWarnings();
806 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0);
807 if (!Success || Diags.getNumWarnings() != NumWarningsBefore)
808 return Success;
809
810 // Parse with original options and diagnostics succeeded even though it
811 // shouldn't have. Something is off.
812 Diags.Report(DiagID: diag::err_cc1_round_trip_fail_then_ok);
813 Diags.Report(DiagID: diag::note_cc1_round_trip_original)
814 << SerializeArgs(CommandLineArgs);
815 return false;
816 }
817
818 // Setup string allocator.
819 llvm::BumpPtrAllocator Alloc;
820 llvm::StringSaver StringPool(Alloc);
821 auto SA = [&StringPool](const Twine &Arg) {
822 return StringPool.save(S: Arg).data();
823 };
824
825 // Generate arguments from the dummy invocation. If Generate is the
826 // inverse of Parse, the newly generated arguments must have the same
827 // semantics as the original.
828 SmallVector<const char *> GeneratedArgs;
829 Generate(DummyInvocation, GeneratedArgs, SA);
830
831 // Run the second parse, now on the generated arguments, and with the real
832 // invocation and diagnostics. The result is what we will end up using for the
833 // rest of compilation, so if Generate is not inverse of Parse, something down
834 // the line will break.
835 bool Success2 = Parse(RealInvocation, GeneratedArgs, Diags, Argv0);
836
837 // The first parse on original arguments succeeded, but second parse of
838 // generated arguments failed. Something must be wrong with the generator.
839 if (!Success2) {
840 Diags.Report(DiagID: diag::err_cc1_round_trip_ok_then_fail);
841 Diags.Report(DiagID: diag::note_cc1_round_trip_generated)
842 << 1 << SerializeArgs(GeneratedArgs);
843 return false;
844 }
845
846 SmallVector<const char *> ComparisonArgs;
847 if (CheckAgainstOriginalInvocation)
848 // Compare against original arguments.
849 ComparisonArgs.assign(in_start: CommandLineArgs.begin(), in_end: CommandLineArgs.end());
850 else
851 // Generate arguments again, this time from the options we will end up using
852 // for the rest of the compilation.
853 Generate(RealInvocation, ComparisonArgs, SA);
854
855 // Compares two lists of arguments.
856 auto Equal = [](const ArrayRef<const char *> A,
857 const ArrayRef<const char *> B) {
858 return llvm::equal(LRange: A, RRange: B, P: [](const char *AElem, const char *BElem) {
859 return StringRef(AElem) == StringRef(BElem);
860 });
861 };
862
863 // If we generated different arguments from what we assume are two
864 // semantically equivalent CompilerInvocations, the Generate function may
865 // be non-deterministic.
866 if (!Equal(GeneratedArgs, ComparisonArgs)) {
867 Diags.Report(DiagID: diag::err_cc1_round_trip_mismatch);
868 Diags.Report(DiagID: diag::note_cc1_round_trip_generated)
869 << 1 << SerializeArgs(GeneratedArgs);
870 Diags.Report(DiagID: diag::note_cc1_round_trip_generated)
871 << 2 << SerializeArgs(ComparisonArgs);
872 return false;
873 }
874
875 Diags.Report(DiagID: diag::remark_cc1_round_trip_generated)
876 << 1 << SerializeArgs(GeneratedArgs);
877 Diags.Report(DiagID: diag::remark_cc1_round_trip_generated)
878 << 2 << SerializeArgs(ComparisonArgs);
879
880 return Success2;
881}
882
883bool CompilerInvocation::checkCC1RoundTrip(ArrayRef<const char *> Args,
884 DiagnosticsEngine &Diags,
885 const char *Argv0) {
886 CompilerInvocation DummyInvocation1, DummyInvocation2;
887 return RoundTrip(
888 Parse: [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs,
889 DiagnosticsEngine &Diags, const char *Argv0) {
890 return CreateFromArgsImpl(Res&: Invocation, CommandLineArgs, Diags, Argv0);
891 },
892 Generate: [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args,
893 StringAllocator SA) {
894 Args.push_back(Elt: "-cc1");
895 Invocation.generateCC1CommandLine(Args, SA);
896 },
897 RealInvocation&: DummyInvocation1, DummyInvocation&: DummyInvocation2, CommandLineArgs: Args, Diags, Argv0,
898 /*CheckAgainstOriginalInvocation=*/true, /*ForceRoundTrip=*/true);
899}
900
901static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group,
902 OptSpecifier GroupWithValue,
903 std::vector<std::string> &Diagnostics) {
904 for (auto *A : Args.filtered(Ids: Group)) {
905 if (A->getOption().getKind() == Option::FlagClass) {
906 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add
907 // its name (minus the "W" or "R" at the beginning) to the diagnostics.
908 Diagnostics.push_back(
909 x: std::string(A->getOption().getName().drop_front(N: 1)));
910 } else if (A->getOption().matches(ID: GroupWithValue)) {
911 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic
912 // group. Add only the group name to the diagnostics.
913 Diagnostics.push_back(
914 x: std::string(A->getOption().getName().drop_front(N: 1).rtrim(Chars: "=-")));
915 } else {
916 // Otherwise, add its value (for OPT_W_Joined and similar).
917 Diagnostics.push_back(x: A->getValue());
918 }
919 }
920}
921
922// Parse the Static Analyzer configuration. If \p Diags is set to nullptr,
923// it won't verify the input.
924static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts,
925 DiagnosticsEngine *Diags);
926
927static void getAllNoBuiltinFuncValues(ArgList &Args,
928 std::vector<std::string> &Funcs) {
929 std::vector<std::string> Values = Args.getAllArgValues(Id: OPT_fno_builtin_);
930 auto BuiltinEnd = llvm::partition(Range&: Values, P: Builtin::Context::isBuiltinFunc);
931 Funcs.insert(position: Funcs.end(), first: Values.begin(), last: BuiltinEnd);
932}
933
934static void GenerateAnalyzerArgs(const AnalyzerOptions &Opts,
935 ArgumentConsumer Consumer) {
936 const AnalyzerOptions *AnalyzerOpts = &Opts;
937
938#define ANALYZER_OPTION_WITH_MARSHALLING(...) \
939 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
940#include "clang/Options/Options.inc"
941#undef ANALYZER_OPTION_WITH_MARSHALLING
942
943 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) {
944 switch (Opts.AnalysisConstraintsOpt) {
945#define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
946 case NAME##Model: \
947 GenerateArg(Consumer, OPT_analyzer_constraints, CMDFLAG); \
948 break;
949#include "clang/StaticAnalyzer/Core/Analyses.def"
950 default:
951 llvm_unreachable("Tried to generate unknown analysis constraint.");
952 }
953 }
954
955 if (Opts.AnalysisDiagOpt != PD_HTML) {
956 switch (Opts.AnalysisDiagOpt) {
957#define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \
958 case PD_##NAME: \
959 GenerateArg(Consumer, OPT_analyzer_output, CMDFLAG); \
960 break;
961#include "clang/StaticAnalyzer/Core/Analyses.def"
962 default:
963 llvm_unreachable("Tried to generate unknown analysis diagnostic client.");
964 }
965 }
966
967 if (Opts.AnalysisPurgeOpt != PurgeStmt) {
968 switch (Opts.AnalysisPurgeOpt) {
969#define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \
970 case NAME: \
971 GenerateArg(Consumer, OPT_analyzer_purge, CMDFLAG); \
972 break;
973#include "clang/StaticAnalyzer/Core/Analyses.def"
974 default:
975 llvm_unreachable("Tried to generate unknown analysis purge mode.");
976 }
977 }
978
979 if (Opts.InliningMode != NoRedundancy) {
980 switch (Opts.InliningMode) {
981#define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \
982 case NAME: \
983 GenerateArg(Consumer, OPT_analyzer_inlining_mode, CMDFLAG); \
984 break;
985#include "clang/StaticAnalyzer/Core/Analyses.def"
986 default:
987 llvm_unreachable("Tried to generate unknown analysis inlining mode.");
988 }
989 }
990
991 for (const auto &CP : Opts.CheckersAndPackages) {
992 OptSpecifier Opt =
993 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker;
994 GenerateArg(Consumer, OptSpecifier: Opt, Value: CP.first);
995 }
996
997 AnalyzerOptions ConfigOpts;
998 parseAnalyzerConfigs(AnOpts&: ConfigOpts, Diags: nullptr);
999
1000 // Sort options by key to avoid relying on StringMap iteration order.
1001 SmallVector<std::pair<StringRef, StringRef>, 4> SortedConfigOpts;
1002 for (const auto &C : Opts.Config)
1003 SortedConfigOpts.emplace_back(Args: C.getKey(), Args: C.getValue());
1004 llvm::sort(C&: SortedConfigOpts, Comp: llvm::less_first());
1005
1006 for (const auto &[Key, Value] : SortedConfigOpts) {
1007 // Don't generate anything that came from parseAnalyzerConfigs. It would be
1008 // redundant and may not be valid on the command line.
1009 auto Entry = ConfigOpts.Config.find(Key);
1010 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == Value)
1011 continue;
1012
1013 GenerateArg(Consumer, OptSpecifier: OPT_analyzer_config, Value: Key + "=" + Value);
1014 }
1015
1016 // Nothing to generate for FullCompilerInvocation.
1017}
1018
1019static void GenerateSSAFArgs(const ssaf::SSAFOptions &Opts,
1020 ArgumentConsumer Consumer) {
1021 const ssaf::SSAFOptions *SSAFOpts = &Opts;
1022
1023#define SSAF_OPTION_WITH_MARSHALLING(...) \
1024 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
1025#include "clang/Options/Options.inc"
1026#undef SSAF_OPTION_WITH_MARSHALLING
1027}
1028
1029static bool ParseSSAFArgs(ssaf::SSAFOptions &Opts, ArgList &Args,
1030 DiagnosticsEngine &Diags) {
1031 unsigned NumErrorsBefore = Diags.getNumErrors();
1032
1033 ssaf::SSAFOptions *SSAFOpts = &Opts;
1034
1035#define SSAF_OPTION_WITH_MARSHALLING(...) \
1036 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
1037#include "clang/Options/Options.inc"
1038#undef SSAF_OPTION_WITH_MARSHALLING
1039
1040 return Diags.getNumErrors() == NumErrorsBefore;
1041}
1042
1043static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
1044 DiagnosticsEngine &Diags) {
1045 unsigned NumErrorsBefore = Diags.getNumErrors();
1046
1047 AnalyzerOptions *AnalyzerOpts = &Opts;
1048
1049#define ANALYZER_OPTION_WITH_MARSHALLING(...) \
1050 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
1051#include "clang/Options/Options.inc"
1052#undef ANALYZER_OPTION_WITH_MARSHALLING
1053
1054 if (Arg *A = Args.getLastArg(Ids: OPT_analyzer_constraints)) {
1055 StringRef Name = A->getValue();
1056 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
1057#define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
1058 .Case(CMDFLAG, NAME##Model)
1059#include "clang/StaticAnalyzer/Core/Analyses.def"
1060 .Default(Value: NumConstraints);
1061 if (Value == NumConstraints) {
1062 Diags.Report(DiagID: diag::err_drv_invalid_value)
1063 << A->getAsString(Args) << Name;
1064 } else {
1065#ifndef LLVM_WITH_Z3
1066 if (Value == AnalysisConstraints::Z3ConstraintsModel) {
1067 Diags.Report(DiagID: diag::err_analyzer_not_built_with_z3);
1068 }
1069#endif // LLVM_WITH_Z3
1070 Opts.AnalysisConstraintsOpt = Value;
1071 }
1072 }
1073
1074 if (Arg *A = Args.getLastArg(Ids: OPT_analyzer_output)) {
1075 StringRef Name = A->getValue();
1076 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
1077#define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \
1078 .Case(CMDFLAG, PD_##NAME)
1079#include "clang/StaticAnalyzer/Core/Analyses.def"
1080 .Default(Value: NUM_ANALYSIS_DIAG_CLIENTS);
1081 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) {
1082 Diags.Report(DiagID: diag::err_drv_invalid_value)
1083 << A->getAsString(Args) << Name;
1084 } else {
1085 Opts.AnalysisDiagOpt = Value;
1086 }
1087 }
1088
1089 if (Arg *A = Args.getLastArg(Ids: OPT_analyzer_purge)) {
1090 StringRef Name = A->getValue();
1091 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name)
1092#define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \
1093 .Case(CMDFLAG, NAME)
1094#include "clang/StaticAnalyzer/Core/Analyses.def"
1095 .Default(Value: NumPurgeModes);
1096 if (Value == NumPurgeModes) {
1097 Diags.Report(DiagID: diag::err_drv_invalid_value)
1098 << A->getAsString(Args) << Name;
1099 } else {
1100 Opts.AnalysisPurgeOpt = Value;
1101 }
1102 }
1103
1104 if (Arg *A = Args.getLastArg(Ids: OPT_analyzer_inlining_mode)) {
1105 StringRef Name = A->getValue();
1106 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name)
1107#define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \
1108 .Case(CMDFLAG, NAME)
1109#include "clang/StaticAnalyzer/Core/Analyses.def"
1110 .Default(Value: NumInliningModes);
1111 if (Value == NumInliningModes) {
1112 Diags.Report(DiagID: diag::err_drv_invalid_value)
1113 << A->getAsString(Args) << Name;
1114 } else {
1115 Opts.InliningMode = Value;
1116 }
1117 }
1118
1119 Opts.CheckersAndPackages.clear();
1120 for (const Arg *A :
1121 Args.filtered(Ids: OPT_analyzer_checker, Ids: OPT_analyzer_disable_checker)) {
1122 A->claim();
1123 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker;
1124 // We can have a list of comma separated checker names, e.g:
1125 // '-analyzer-checker=cocoa,unix'
1126 StringRef CheckerAndPackageList = A->getValue();
1127 SmallVector<StringRef, 16> CheckersAndPackages;
1128 CheckerAndPackageList.split(A&: CheckersAndPackages, Separator: ",");
1129 for (const StringRef &CheckerOrPackage : CheckersAndPackages)
1130 Opts.CheckersAndPackages.emplace_back(args: std::string(CheckerOrPackage),
1131 args&: IsEnabled);
1132 }
1133
1134 // Go through the analyzer configuration options.
1135 for (const auto *A : Args.filtered(Ids: OPT_analyzer_config)) {
1136
1137 // We can have a list of comma separated config names, e.g:
1138 // '-analyzer-config key1=val1,key2=val2'
1139 StringRef configList = A->getValue();
1140 SmallVector<StringRef, 4> configVals;
1141 configList.split(A&: configVals, Separator: ",");
1142 for (const auto &configVal : configVals) {
1143 StringRef key, val;
1144 std::tie(args&: key, args&: val) = configVal.split(Separator: "=");
1145 if (val.empty()) {
1146 Diags.Report(Loc: SourceLocation(),
1147 DiagID: diag::err_analyzer_config_no_value) << configVal;
1148 break;
1149 }
1150 if (val.contains(C: '=')) {
1151 Diags.Report(Loc: SourceLocation(),
1152 DiagID: diag::err_analyzer_config_multiple_values)
1153 << configVal;
1154 break;
1155 }
1156
1157 // TODO: Check checker options too, possibly in CheckerRegistry.
1158 // Leave unknown non-checker configs unclaimed.
1159 if (!key.contains(Other: ":") && Opts.isUnknownAnalyzerConfig(Name: key)) {
1160 if (Opts.ShouldEmitErrorsOnInvalidConfigValue)
1161 Diags.Report(DiagID: diag::err_analyzer_config_unknown) << key;
1162 continue;
1163 }
1164
1165 A->claim();
1166 Opts.Config[key] = std::string(val);
1167 }
1168 }
1169
1170 if (Opts.ShouldEmitErrorsOnInvalidConfigValue)
1171 parseAnalyzerConfigs(AnOpts&: Opts, Diags: &Diags);
1172 else
1173 parseAnalyzerConfigs(AnOpts&: Opts, Diags: nullptr);
1174
1175 llvm::raw_string_ostream os(Opts.FullCompilerInvocation);
1176 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) {
1177 if (i != 0)
1178 os << " ";
1179 os << Args.getArgString(Index: i);
1180 }
1181
1182 return Diags.getNumErrors() == NumErrorsBefore;
1183}
1184
1185static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config,
1186 StringRef OptionName, StringRef DefaultVal) {
1187 return Config.insert(KV: {OptionName, std::string(DefaultVal)}).first->second;
1188}
1189
1190static void initOption(AnalyzerOptions::ConfigTable &Config,
1191 DiagnosticsEngine *Diags,
1192 StringRef &OptionField, StringRef Name,
1193 StringRef DefaultVal) {
1194 // String options may be known to invalid (e.g. if the expected string is a
1195 // file name, but the file does not exist), those will have to be checked in
1196 // parseConfigs.
1197 OptionField = getStringOption(Config, OptionName: Name, DefaultVal);
1198}
1199
1200static void initOption(AnalyzerOptions::ConfigTable &Config,
1201 DiagnosticsEngine *Diags,
1202 bool &OptionField, StringRef Name, bool DefaultVal) {
1203 auto PossiblyInvalidVal =
1204 llvm::StringSwitch<std::optional<bool>>(
1205 getStringOption(Config, OptionName: Name, DefaultVal: (DefaultVal ? "true" : "false")))
1206 .Case(S: "true", Value: true)
1207 .Case(S: "false", Value: false)
1208 .Default(Value: std::nullopt);
1209
1210 if (!PossiblyInvalidVal) {
1211 if (Diags)
1212 Diags->Report(DiagID: diag::err_analyzer_config_invalid_input)
1213 << Name << "a boolean";
1214 else
1215 OptionField = DefaultVal;
1216 } else
1217 OptionField = *PossiblyInvalidVal;
1218}
1219
1220static void initOption(AnalyzerOptions::ConfigTable &Config,
1221 DiagnosticsEngine *Diags,
1222 unsigned &OptionField, StringRef Name,
1223 unsigned DefaultVal) {
1224
1225 OptionField = DefaultVal;
1226 bool HasFailed = getStringOption(Config, OptionName: Name, DefaultVal: std::to_string(val: DefaultVal))
1227 .getAsInteger(Radix: 0, Result&: OptionField);
1228 if (Diags && HasFailed)
1229 Diags->Report(DiagID: diag::err_analyzer_config_invalid_input)
1230 << Name << "an unsigned";
1231}
1232
1233static void initOption(AnalyzerOptions::ConfigTable &Config,
1234 DiagnosticsEngine *Diags,
1235 PositiveAnalyzerOption &OptionField, StringRef Name,
1236 unsigned DefaultVal) {
1237 auto Parsed = PositiveAnalyzerOption::create(
1238 Str: getStringOption(Config, OptionName: Name, DefaultVal: std::to_string(val: DefaultVal)));
1239 if (Parsed.has_value()) {
1240 OptionField = Parsed.value();
1241 return;
1242 }
1243 if (Diags && !Parsed.has_value())
1244 Diags->Report(DiagID: diag::err_analyzer_config_invalid_input)
1245 << Name << "a positive";
1246
1247 OptionField = DefaultVal;
1248}
1249
1250static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts,
1251 DiagnosticsEngine *Diags) {
1252 // TODO: There's no need to store the entire configtable, it'd be plenty
1253 // enough to store checker options.
1254
1255#define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \
1256 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL);
1257#define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(...)
1258#include "clang/StaticAnalyzer/Core/AnalyzerOptions.def"
1259
1260 assert(AnOpts.UserMode == "shallow" || AnOpts.UserMode == "deep");
1261 const bool InShallowMode = AnOpts.UserMode == "shallow";
1262
1263#define ANALYZER_OPTION(...)
1264#define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \
1265 SHALLOW_VAL, DEEP_VAL) \
1266 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, \
1267 InShallowMode ? SHALLOW_VAL : DEEP_VAL);
1268#include "clang/StaticAnalyzer/Core/AnalyzerOptions.def"
1269
1270 // At this point, AnalyzerOptions is configured. Let's validate some options.
1271
1272 // FIXME: Here we try to validate the silenced checkers or packages are valid.
1273 // The current approach only validates the registered checkers which does not
1274 // contain the runtime enabled checkers and optimally we would validate both.
1275 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) {
1276 std::vector<StringRef> Checkers =
1277 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true);
1278 std::vector<StringRef> Packages =
1279 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true);
1280
1281 SmallVector<StringRef, 16> CheckersAndPackages;
1282 AnOpts.RawSilencedCheckersAndPackages.split(A&: CheckersAndPackages, Separator: ";");
1283
1284 for (const StringRef &CheckerOrPackage : CheckersAndPackages) {
1285 if (Diags) {
1286 bool IsChecker = CheckerOrPackage.contains(C: '.');
1287 bool IsValidName = IsChecker
1288 ? llvm::is_contained(Range&: Checkers, Element: CheckerOrPackage)
1289 : llvm::is_contained(Range&: Packages, Element: CheckerOrPackage);
1290
1291 if (!IsValidName)
1292 Diags->Report(DiagID: diag::err_unknown_analyzer_checker_or_package)
1293 << CheckerOrPackage;
1294 }
1295
1296 AnOpts.SilencedCheckersAndPackages.emplace_back(args: CheckerOrPackage);
1297 }
1298 }
1299
1300 if (!Diags)
1301 return;
1302
1303 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions)
1304 Diags->Report(DiagID: diag::err_analyzer_config_invalid_input)
1305 << "track-conditions-debug" << "'track-conditions' to also be enabled";
1306}
1307
1308/// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`.
1309static void
1310GenerateOptimizationRemark(ArgumentConsumer Consumer, OptSpecifier OptEQ,
1311 StringRef Name,
1312 const CodeGenOptions::OptRemark &Remark) {
1313 if (Remark.hasValidPattern()) {
1314 GenerateArg(Consumer, OptSpecifier: OptEQ, Value: Remark.Pattern);
1315 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) {
1316 GenerateArg(Consumer, OptSpecifier: OPT_R_Joined, Value: Name);
1317 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) {
1318 GenerateArg(Consumer, OptSpecifier: OPT_R_Joined, Value: StringRef("no-") + Name);
1319 }
1320}
1321
1322/// Parse a remark command line argument. It may be missing, disabled/enabled by
1323/// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'.
1324/// On top of that, it can be disabled/enabled globally by '-R[no-]everything'.
1325static CodeGenOptions::OptRemark
1326ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args,
1327 OptSpecifier OptEQ, StringRef Name) {
1328 CodeGenOptions::OptRemark Result;
1329
1330 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A,
1331 StringRef Pattern) {
1332 Result.Pattern = Pattern.str();
1333
1334 std::string RegexError;
1335 Result.Regex = std::make_shared<llvm::Regex>(args&: Result.Pattern);
1336 if (!Result.Regex->isValid(Error&: RegexError)) {
1337 Diags.Report(DiagID: diag::err_drv_optimization_remark_pattern)
1338 << RegexError << A->getAsString(Args);
1339 return false;
1340 }
1341
1342 return true;
1343 };
1344
1345 for (Arg *A : Args) {
1346 if (A->getOption().matches(ID: OPT_R_Joined)) {
1347 StringRef Value = A->getValue();
1348
1349 if (Value == Name)
1350 Result.Kind = CodeGenOptions::RK_Enabled;
1351 else if (Value == "everything")
1352 Result.Kind = CodeGenOptions::RK_EnabledEverything;
1353 else if (Value.split(Separator: '-') == std::make_pair(x: StringRef("no"), y&: Name))
1354 Result.Kind = CodeGenOptions::RK_Disabled;
1355 else if (Value == "no-everything")
1356 Result.Kind = CodeGenOptions::RK_DisabledEverything;
1357 else
1358 continue;
1359
1360 if (Result.Kind == CodeGenOptions::RK_Disabled ||
1361 Result.Kind == CodeGenOptions::RK_DisabledEverything) {
1362 Result.Pattern = "";
1363 Result.Regex = nullptr;
1364 } else {
1365 InitializeResultPattern(A, ".*");
1366 }
1367 } else if (A->getOption().matches(ID: OptEQ)) {
1368 Result.Kind = CodeGenOptions::RK_WithPattern;
1369 if (!InitializeResultPattern(A, A->getValue()))
1370 return CodeGenOptions::OptRemark();
1371 }
1372 }
1373
1374 return Result;
1375}
1376
1377static bool parseDiagnosticLevelMask(StringRef FlagName,
1378 const std::vector<std::string> &Levels,
1379 DiagnosticsEngine &Diags,
1380 DiagnosticLevelMask &M) {
1381 bool Success = true;
1382 for (const auto &Level : Levels) {
1383 DiagnosticLevelMask const PM =
1384 llvm::StringSwitch<DiagnosticLevelMask>(Level)
1385 .Case(S: "note", Value: DiagnosticLevelMask::Note)
1386 .Case(S: "remark", Value: DiagnosticLevelMask::Remark)
1387 .Case(S: "warning", Value: DiagnosticLevelMask::Warning)
1388 .Case(S: "error", Value: DiagnosticLevelMask::Error)
1389 .Default(Value: DiagnosticLevelMask::None);
1390 if (PM == DiagnosticLevelMask::None) {
1391 Success = false;
1392 Diags.Report(DiagID: diag::err_drv_invalid_value) << FlagName << Level;
1393 }
1394 M = M | PM;
1395 }
1396 return Success;
1397}
1398
1399static void parseSanitizerKinds(StringRef FlagName,
1400 const std::vector<std::string> &Sanitizers,
1401 DiagnosticsEngine &Diags, SanitizerSet &S) {
1402 for (const auto &Sanitizer : Sanitizers) {
1403 SanitizerMask K = parseSanitizerValue(Value: Sanitizer, /*AllowGroups=*/false);
1404 if (K == SanitizerMask())
1405 Diags.Report(DiagID: diag::err_drv_invalid_value) << FlagName << Sanitizer;
1406 else
1407 S.set(K, Value: true);
1408 }
1409}
1410
1411static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) {
1412 SmallVector<StringRef, 4> Values;
1413 serializeSanitizerSet(Set: S, Values);
1414 return Values;
1415}
1416
1417static SanitizerMaskCutoffs
1418parseSanitizerWeightedKinds(StringRef FlagName,
1419 const std::vector<std::string> &Sanitizers,
1420 DiagnosticsEngine &Diags) {
1421 SanitizerMaskCutoffs Cutoffs;
1422 for (const auto &Sanitizer : Sanitizers) {
1423 if (!parseSanitizerWeightedValue(Value: Sanitizer, /*AllowGroups=*/false, Cutoffs))
1424 Diags.Report(DiagID: diag::err_drv_invalid_value) << FlagName << Sanitizer;
1425 }
1426 return Cutoffs;
1427}
1428
1429static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle,
1430 ArgList &Args, DiagnosticsEngine &D,
1431 XRayInstrSet &S) {
1432 llvm::SmallVector<StringRef, 2> BundleParts;
1433 llvm::SplitString(Source: Bundle, OutFragments&: BundleParts, Delimiters: ",");
1434 for (const auto &B : BundleParts) {
1435 auto Mask = parseXRayInstrValue(Value: B);
1436 if (Mask == XRayInstrKind::None)
1437 if (B != "none")
1438 D.Report(DiagID: diag::err_drv_invalid_value) << FlagName << Bundle;
1439 else
1440 S.Mask = Mask;
1441 else if (Mask == XRayInstrKind::All)
1442 S.Mask = Mask;
1443 else
1444 S.set(K: Mask, Value: true);
1445 }
1446}
1447
1448static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) {
1449 llvm::SmallVector<StringRef, 2> BundleParts;
1450 serializeXRayInstrValue(Set: S, Values&: BundleParts);
1451 std::string Buffer;
1452 llvm::raw_string_ostream OS(Buffer);
1453 llvm::interleave(c: BundleParts, os&: OS, each_fn: [&OS](StringRef Part) { OS << Part; }, separator: ",");
1454 return Buffer;
1455}
1456
1457void CompilerInvocation::setDefaultPointerAuthOptions(
1458 PointerAuthOptions &Opts, const LangOptions &LangOpts,
1459 const llvm::Triple &Triple) {
1460 assert(Triple.getArch() == llvm::Triple::aarch64);
1461 if (LangOpts.PointerAuthCalls) {
1462 using Key = PointerAuthSchema::ARM8_3Key;
1463 using Discrimination = PointerAuthSchema::Discrimination;
1464 // If you change anything here, be sure to update <ptrauth.h>.
1465 Opts.FunctionPointers = PointerAuthSchema(
1466 Key::ASIA, false,
1467 LangOpts.PointerAuthFunctionTypeDiscrimination ? Discrimination::Type
1468 : Discrimination::None);
1469
1470 Opts.CXXVTablePointers = PointerAuthSchema(
1471 Key::ASDA, LangOpts.PointerAuthVTPtrAddressDiscrimination,
1472 LangOpts.PointerAuthVTPtrTypeDiscrimination ? Discrimination::Type
1473 : Discrimination::None);
1474
1475 if (LangOpts.PointerAuthTypeInfoVTPtrDiscrimination)
1476 Opts.CXXTypeInfoVTablePointer =
1477 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant,
1478 StdTypeInfoVTablePointerConstantDiscrimination);
1479 else
1480 Opts.CXXTypeInfoVTablePointer =
1481 PointerAuthSchema(Key::ASDA, false, Discrimination::None);
1482
1483 if (LangOpts.PointerAuthVTTVTPtrDiscrimination)
1484 Opts.CXXVTTVTablePointers = PointerAuthSchema(
1485 Key::ASDA, LangOpts.PointerAuthVTPtrAddressDiscrimination,
1486 LangOpts.PointerAuthVTPtrTypeDiscrimination ? Discrimination::Type
1487 : Discrimination::None);
1488 else
1489 Opts.CXXVTTVTablePointers =
1490 PointerAuthSchema(Key::ASDA, false, Discrimination::None);
1491
1492 Opts.CXXVirtualFunctionPointers = Opts.CXXVirtualVariadicFunctionPointers =
1493 PointerAuthSchema(Key::ASIA, true, Discrimination::Decl);
1494 Opts.CXXMemberFunctionPointers =
1495 PointerAuthSchema(Key::ASIA, false, Discrimination::Type);
1496
1497 Opts.BlockInvocationFunctionPointers =
1498 PointerAuthSchema(Key::ASIA, true, Discrimination::None);
1499 Opts.BlockHelperFunctionPointers =
1500 PointerAuthSchema(Key::ASIA, true, Discrimination::None);
1501 Opts.BlockByrefHelperFunctionPointers =
1502 PointerAuthSchema(Key::ASIA, true, Discrimination::None);
1503 if (LangOpts.PointerAuthBlockDescriptorPointers)
1504 Opts.BlockDescriptorPointers =
1505 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant,
1506 BlockDescriptorConstantDiscriminator);
1507
1508 Opts.ObjCMethodListFunctionPointers =
1509 PointerAuthSchema(Key::ASIA, true, Discrimination::None);
1510 Opts.ObjCMethodListPointer =
1511 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant,
1512 MethodListPointerConstantDiscriminator);
1513 if (LangOpts.PointerAuthObjcIsa) {
1514 Opts.ObjCIsaPointers =
1515 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant,
1516 IsaPointerConstantDiscriminator);
1517 Opts.ObjCSuperPointers =
1518 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant,
1519 SuperPointerConstantDiscriminator);
1520 }
1521
1522 if (LangOpts.PointerAuthObjcClassROPointers)
1523 Opts.ObjCClassROPointers =
1524 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant,
1525 ClassROConstantDiscriminator);
1526 }
1527 Opts.ReturnAddresses = LangOpts.PointerAuthReturns;
1528 Opts.AuthTraps = LangOpts.PointerAuthAuthTraps;
1529 Opts.IndirectGotos = LangOpts.PointerAuthIndirectGotos;
1530 Opts.AArch64JumpTableHardening = LangOpts.AArch64JumpTableHardening;
1531}
1532
1533static void parsePointerAuthOptions(PointerAuthOptions &Opts,
1534 const LangOptions &LangOpts,
1535 const llvm::Triple &Triple,
1536 DiagnosticsEngine &Diags) {
1537 if (!LangOpts.PointerAuthCalls && !LangOpts.PointerAuthReturns &&
1538 !LangOpts.PointerAuthAuthTraps && !LangOpts.PointerAuthIndirectGotos &&
1539 !LangOpts.AArch64JumpTableHardening)
1540 return;
1541
1542 CompilerInvocation::setDefaultPointerAuthOptions(Opts, LangOpts, Triple);
1543}
1544
1545void CompilerInvocationBase::GenerateCodeGenArgs(const CodeGenOptions &Opts,
1546 ArgumentConsumer Consumer,
1547 const llvm::Triple &T,
1548 const std::string &OutputFile,
1549 const LangOptions *LangOpts) {
1550 const CodeGenOptions &CodeGenOpts = Opts;
1551
1552 if (Opts.OptimizationLevel == 0)
1553 GenerateArg(Consumer, OptSpecifier: OPT_O0);
1554 else
1555 GenerateArg(Consumer, OptSpecifier: OPT_O, Value: Twine(Opts.OptimizationLevel));
1556
1557#define CODEGEN_OPTION_WITH_MARSHALLING(...) \
1558 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
1559#include "clang/Options/Options.inc"
1560#undef CODEGEN_OPTION_WITH_MARSHALLING
1561
1562 if (Opts.OptimizationLevel > 0) {
1563 if (Opts.Inlining == CodeGenOptions::NormalInlining)
1564 GenerateArg(Consumer, OptSpecifier: OPT_finline_functions);
1565 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining)
1566 GenerateArg(Consumer, OptSpecifier: OPT_finline_hint_functions);
1567 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining)
1568 GenerateArg(Consumer, OptSpecifier: OPT_fno_inline);
1569 }
1570
1571 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0)
1572 GenerateArg(Consumer, OptSpecifier: OPT_fdirect_access_external_data);
1573 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0)
1574 GenerateArg(Consumer, OptSpecifier: OPT_fno_direct_access_external_data);
1575
1576 std::optional<StringRef> DebugInfoVal;
1577 switch (Opts.DebugInfo) {
1578 case llvm::codegenoptions::DebugLineTablesOnly:
1579 DebugInfoVal = "line-tables-only";
1580 break;
1581 case llvm::codegenoptions::DebugDirectivesOnly:
1582 DebugInfoVal = "line-directives-only";
1583 break;
1584 case llvm::codegenoptions::DebugInfoConstructor:
1585 DebugInfoVal = "constructor";
1586 break;
1587 case llvm::codegenoptions::LimitedDebugInfo:
1588 DebugInfoVal = "limited";
1589 break;
1590 case llvm::codegenoptions::FullDebugInfo:
1591 DebugInfoVal = "standalone";
1592 break;
1593 case llvm::codegenoptions::UnusedTypeInfo:
1594 DebugInfoVal = "unused-types";
1595 break;
1596 case llvm::codegenoptions::NoDebugInfo: // default value
1597 DebugInfoVal = std::nullopt;
1598 break;
1599 case llvm::codegenoptions::LocTrackingOnly: // implied value
1600 DebugInfoVal = std::nullopt;
1601 break;
1602 }
1603 if (DebugInfoVal)
1604 GenerateArg(Consumer, OptSpecifier: OPT_debug_info_kind_EQ, Value: *DebugInfoVal);
1605
1606 for (const auto &Prefix : Opts.DebugPrefixMap)
1607 GenerateArg(Consumer, OptSpecifier: OPT_fdebug_prefix_map_EQ,
1608 Value: Prefix.first + "=" + Prefix.second);
1609
1610 for (const auto &Prefix : Opts.CoveragePrefixMap)
1611 GenerateArg(Consumer, OptSpecifier: OPT_fcoverage_prefix_map_EQ,
1612 Value: Prefix.first + "=" + Prefix.second);
1613
1614 if (Opts.NewStructPathTBAA)
1615 GenerateArg(Consumer, OptSpecifier: OPT_new_struct_path_tbaa);
1616
1617 if (Opts.OptimizeSize == 1)
1618 GenerateArg(Consumer, OptSpecifier: OPT_O, Value: "s");
1619 else if (Opts.OptimizeSize == 2)
1620 GenerateArg(Consumer, OptSpecifier: OPT_O, Value: "z");
1621
1622 // SimplifyLibCalls is set only in the absence of -fno-builtin and
1623 // -ffreestanding. We'll consider that when generating them.
1624
1625 // NoBuiltinFuncs are generated by LangOptions.
1626
1627 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1)
1628 GenerateArg(Consumer, OptSpecifier: OPT_funroll_loops);
1629 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1)
1630 GenerateArg(Consumer, OptSpecifier: OPT_fno_unroll_loops);
1631
1632 if (Opts.InterchangeLoops)
1633 GenerateArg(Consumer, OptSpecifier: OPT_floop_interchange);
1634 else
1635 GenerateArg(Consumer, OptSpecifier: OPT_fno_loop_interchange);
1636
1637 if (Opts.FuseLoops)
1638 GenerateArg(Consumer, OptSpecifier: OPT_fexperimental_loop_fusion);
1639
1640 if (!Opts.BinutilsVersion.empty())
1641 GenerateArg(Consumer, OptSpecifier: OPT_fbinutils_version_EQ, Value: Opts.BinutilsVersion);
1642
1643 if (Opts.DebugNameTable ==
1644 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU))
1645 GenerateArg(Consumer, OptSpecifier: OPT_ggnu_pubnames);
1646 else if (Opts.DebugNameTable ==
1647 static_cast<unsigned>(
1648 llvm::DICompileUnit::DebugNameTableKind::Default))
1649 GenerateArg(Consumer, OptSpecifier: OPT_gpubnames);
1650
1651 if (Opts.DebugTemplateAlias)
1652 GenerateArg(Consumer, OptSpecifier: OPT_gtemplate_alias);
1653
1654 auto TNK = Opts.getDebugSimpleTemplateNames();
1655 if (TNK != llvm::codegenoptions::DebugTemplateNamesKind::Full) {
1656 if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Simple)
1657 GenerateArg(Consumer, OptSpecifier: OPT_gsimple_template_names_EQ, Value: "simple");
1658 else if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Mangled)
1659 GenerateArg(Consumer, OptSpecifier: OPT_gsimple_template_names_EQ, Value: "mangled");
1660 }
1661 // ProfileInstrumentUsePath is marshalled automatically, no need to generate
1662 // it or PGOUseInstrumentor.
1663
1664 if (Opts.TimePasses) {
1665 if (Opts.TimePassesPerRun)
1666 GenerateArg(Consumer, OptSpecifier: OPT_ftime_report_EQ, Value: "per-pass-run");
1667 else
1668 GenerateArg(Consumer, OptSpecifier: OPT_ftime_report);
1669
1670 if (Opts.TimePassesJson)
1671 GenerateArg(Consumer, OptSpecifier: OPT_ftime_report_json);
1672 }
1673
1674 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO)
1675 GenerateArg(Consumer, OptSpecifier: OPT_flto_EQ, Value: "full");
1676
1677 if (Opts.PrepareForThinLTO)
1678 GenerateArg(Consumer, OptSpecifier: OPT_flto_EQ, Value: "thin");
1679
1680 if (!Opts.ThinLTOIndexFile.empty())
1681 GenerateArg(Consumer, OptSpecifier: OPT_fthinlto_index_EQ, Value: Opts.ThinLTOIndexFile);
1682
1683 if (Opts.SaveTempsFilePrefix == OutputFile)
1684 GenerateArg(Consumer, OptSpecifier: OPT_save_temps_EQ, Value: "obj");
1685
1686 if (!Opts.SaveDynDbgTempsFilePrefix.empty())
1687 GenerateArg(Consumer, OptSpecifier: OPT_save_dynamic_debugging_temps);
1688
1689 StringRef MemProfileBasename("memprof.profraw");
1690 if (!Opts.MemoryProfileOutput.empty()) {
1691 if (Opts.MemoryProfileOutput == MemProfileBasename) {
1692 GenerateArg(Consumer, OptSpecifier: OPT_fmemory_profile);
1693 } else {
1694 size_t ArgLength =
1695 Opts.MemoryProfileOutput.size() - MemProfileBasename.size();
1696 GenerateArg(Consumer, OptSpecifier: OPT_fmemory_profile_EQ,
1697 Value: Opts.MemoryProfileOutput.substr(pos: 0, n: ArgLength));
1698 }
1699 }
1700
1701 if (memcmp(s1: Opts.CoverageVersion, s2: "0000", n: 4))
1702 GenerateArg(Consumer, OptSpecifier: OPT_coverage_version_EQ,
1703 Value: StringRef(Opts.CoverageVersion, 4));
1704
1705 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely
1706 // '-fembed_bitcode', which does not map to any CompilerInvocation field and
1707 // won't be generated.)
1708
1709 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) {
1710 std::string InstrBundle =
1711 serializeXRayInstrumentationBundle(S: Opts.XRayInstrumentationBundle);
1712 if (!InstrBundle.empty())
1713 GenerateArg(Consumer, OptSpecifier: OPT_fxray_instrumentation_bundle, Value: InstrBundle);
1714 }
1715
1716 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch)
1717 GenerateArg(Consumer, OptSpecifier: OPT_fcf_protection_EQ, Value: "full");
1718 else if (Opts.CFProtectionReturn)
1719 GenerateArg(Consumer, OptSpecifier: OPT_fcf_protection_EQ, Value: "return");
1720 else if (Opts.CFProtectionBranch)
1721 GenerateArg(Consumer, OptSpecifier: OPT_fcf_protection_EQ, Value: "branch");
1722
1723 if (Opts.CFProtectionBranch) {
1724 switch (Opts.getCFBranchLabelScheme()) {
1725 case CFBranchLabelSchemeKind::Default:
1726 break;
1727#define CF_BRANCH_LABEL_SCHEME(Kind, FlagVal) \
1728 case CFBranchLabelSchemeKind::Kind: \
1729 GenerateArg(Consumer, OPT_mcf_branch_label_scheme_EQ, #FlagVal); \
1730 break;
1731#include "clang/Basic/CFProtectionOptions.def"
1732 }
1733 }
1734
1735 if (Opts.FunctionReturnThunks)
1736 GenerateArg(Consumer, OptSpecifier: OPT_mfunction_return_EQ, Value: "thunk-extern");
1737
1738 for (const auto &F : Opts.LinkBitcodeFiles) {
1739 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded &&
1740 F.PropagateAttrs && F.Internalize;
1741 GenerateArg(Consumer,
1742 OptSpecifier: Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file,
1743 Value: F.Filename);
1744 }
1745
1746 if (Opts.EmulatedTLS)
1747 GenerateArg(Consumer, OptSpecifier: OPT_femulated_tls);
1748
1749 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE())
1750 GenerateArg(Consumer, OptSpecifier: OPT_fdenormal_fp_math_EQ, Value: Opts.FPDenormalMode.str());
1751
1752 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) ||
1753 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE()))
1754 GenerateArg(Consumer, OptSpecifier: OPT_fdenormal_fp_math_f32_EQ,
1755 Value: Opts.FP32DenormalMode.str());
1756
1757 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) {
1758 OptSpecifier Opt =
1759 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return;
1760 GenerateArg(Consumer, OptSpecifier: Opt);
1761 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) {
1762 OptSpecifier Opt =
1763 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return;
1764 GenerateArg(Consumer, OptSpecifier: Opt);
1765 }
1766
1767 if (Opts.XCOFFReadOnlyPointers)
1768 GenerateArg(Consumer, OptSpecifier: OPT_mxcoff_roptr);
1769
1770 if (!Opts.OptRecordPasses.empty())
1771 GenerateArg(Consumer, OptSpecifier: OPT_opt_record_passes, Value: Opts.OptRecordPasses);
1772
1773 if (!Opts.OptRecordFormat.empty())
1774 GenerateArg(Consumer, OptSpecifier: OPT_opt_record_format, Value: Opts.OptRecordFormat);
1775
1776 GenerateOptimizationRemark(Consumer, OptEQ: OPT_Rpass_EQ, Name: "pass",
1777 Remark: Opts.OptimizationRemark);
1778
1779 GenerateOptimizationRemark(Consumer, OptEQ: OPT_Rpass_missed_EQ, Name: "pass-missed",
1780 Remark: Opts.OptimizationRemarkMissed);
1781
1782 GenerateOptimizationRemark(Consumer, OptEQ: OPT_Rpass_analysis_EQ, Name: "pass-analysis",
1783 Remark: Opts.OptimizationRemarkAnalysis);
1784
1785 GenerateArg(Consumer, OptSpecifier: OPT_fdiagnostics_hotness_threshold_EQ,
1786 Value: Opts.DiagnosticsHotnessThreshold
1787 ? Twine(*Opts.DiagnosticsHotnessThreshold)
1788 : "auto");
1789
1790 GenerateArg(Consumer, OptSpecifier: OPT_fdiagnostics_misexpect_tolerance_EQ,
1791 Value: Twine(*Opts.DiagnosticsMisExpectTolerance));
1792
1793 for (StringRef Sanitizer : serializeSanitizerKinds(S: Opts.SanitizeRecover))
1794 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_recover_EQ, Value: Sanitizer);
1795
1796 for (StringRef Sanitizer : serializeSanitizerKinds(S: Opts.SanitizeTrap))
1797 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_trap_EQ, Value: Sanitizer);
1798
1799 for (StringRef Sanitizer :
1800 serializeSanitizerKinds(S: Opts.SanitizeMergeHandlers))
1801 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_merge_handlers_EQ, Value: Sanitizer);
1802
1803 SmallVector<std::string, 4> Values;
1804 serializeSanitizerMaskCutoffs(Cutoffs: Opts.SanitizeSkipHotCutoffs, Values);
1805 for (std::string Sanitizer : Values)
1806 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_skip_hot_cutoff_EQ, Value: Sanitizer);
1807
1808 if (Opts.AllowRuntimeCheckSkipHotCutoff) {
1809 GenerateArg(Consumer, OptSpecifier: OPT_fallow_runtime_check_skip_hot_cutoff_EQ,
1810 Value: std::to_string(val: *Opts.AllowRuntimeCheckSkipHotCutoff));
1811 }
1812
1813 for (StringRef Sanitizer :
1814 serializeSanitizerKinds(S: Opts.SanitizeAnnotateDebugInfo))
1815 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_annotate_debug_info_EQ, Value: Sanitizer);
1816
1817 if (!Opts.EmitVersionIdentMetadata)
1818 GenerateArg(Consumer, OptSpecifier: OPT_Qn);
1819
1820 switch (Opts.FiniteLoops) {
1821 case CodeGenOptions::FiniteLoopsKind::Language:
1822 break;
1823 case CodeGenOptions::FiniteLoopsKind::Always:
1824 GenerateArg(Consumer, OptSpecifier: OPT_ffinite_loops);
1825 break;
1826 case CodeGenOptions::FiniteLoopsKind::Never:
1827 GenerateArg(Consumer, OptSpecifier: OPT_fno_finite_loops);
1828 break;
1829 }
1830
1831 if (Opts.StaticClosure)
1832 GenerateArg(Consumer, OptSpecifier: OPT_static_libclosure);
1833}
1834
1835bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args,
1836 InputKind IK,
1837 DiagnosticsEngine &Diags,
1838 const llvm::Triple &T,
1839 const std::string &OutputFile,
1840 const LangOptions &LangOptsRef) {
1841 unsigned NumErrorsBefore = Diags.getNumErrors();
1842
1843 Opts.OptimizationLevel = getOptimizationLevel(Args, IK, Diags);
1844
1845 // The key paths of codegen options defined in Options.td start with
1846 // "CodeGenOpts.". Let's provide the expected variable name and type.
1847 CodeGenOptions &CodeGenOpts = Opts;
1848 // Some codegen options depend on language options. Let's provide the expected
1849 // variable name and type.
1850 const LangOptions *LangOpts = &LangOptsRef;
1851
1852#define CODEGEN_OPTION_WITH_MARSHALLING(...) \
1853 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
1854#include "clang/Options/Options.inc"
1855#undef CODEGEN_OPTION_WITH_MARSHALLING
1856
1857 // At O0 we want to fully disable inlining outside of cases marked with
1858 // 'alwaysinline' that are required for correctness.
1859 if (Opts.OptimizationLevel == 0) {
1860 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining);
1861 } else if (const Arg *A = Args.getLastArg(Ids: options::OPT_finline_functions,
1862 Ids: options::OPT_finline_hint_functions,
1863 Ids: options::OPT_fno_inline_functions,
1864 Ids: options::OPT_fno_inline)) {
1865 // Explicit inlining flags can disable some or all inlining even at
1866 // optimization levels above zero.
1867 if (A->getOption().matches(ID: options::OPT_finline_functions))
1868 Opts.setInlining(CodeGenOptions::NormalInlining);
1869 else if (A->getOption().matches(ID: options::OPT_finline_hint_functions))
1870 Opts.setInlining(CodeGenOptions::OnlyHintInlining);
1871 else
1872 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining);
1873 } else {
1874 Opts.setInlining(CodeGenOptions::NormalInlining);
1875 }
1876
1877 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to
1878 // -fdirect-access-external-data.
1879 Opts.DirectAccessExternalData =
1880 Args.hasArg(Ids: OPT_fdirect_access_external_data) ||
1881 (!Args.hasArg(Ids: OPT_fno_direct_access_external_data) &&
1882 LangOpts->PICLevel == 0);
1883
1884 if (Arg *A = Args.getLastArg(Ids: OPT_debug_info_kind_EQ)) {
1885 unsigned Val =
1886 llvm::StringSwitch<unsigned>(A->getValue())
1887 .Case(S: "line-tables-only", Value: llvm::codegenoptions::DebugLineTablesOnly)
1888 .Case(S: "line-directives-only",
1889 Value: llvm::codegenoptions::DebugDirectivesOnly)
1890 .Case(S: "constructor", Value: llvm::codegenoptions::DebugInfoConstructor)
1891 .Case(S: "limited", Value: llvm::codegenoptions::LimitedDebugInfo)
1892 .Case(S: "standalone", Value: llvm::codegenoptions::FullDebugInfo)
1893 .Case(S: "unused-types", Value: llvm::codegenoptions::UnusedTypeInfo)
1894 .Default(Value: ~0U);
1895 if (Val == ~0U)
1896 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args)
1897 << A->getValue();
1898 else
1899 Opts.setDebugInfo(static_cast<llvm::codegenoptions::DebugInfoKind>(Val));
1900 }
1901
1902 // If -fuse-ctor-homing is set and limited debug info is already on, then use
1903 // constructor homing, and vice versa for -fno-use-ctor-homing.
1904 if (const Arg *A =
1905 Args.getLastArg(Ids: OPT_fuse_ctor_homing, Ids: OPT_fno_use_ctor_homing)) {
1906 if (A->getOption().matches(ID: OPT_fuse_ctor_homing) &&
1907 Opts.getDebugInfo() == llvm::codegenoptions::LimitedDebugInfo)
1908 Opts.setDebugInfo(llvm::codegenoptions::DebugInfoConstructor);
1909 if (A->getOption().matches(ID: OPT_fno_use_ctor_homing) &&
1910 Opts.getDebugInfo() == llvm::codegenoptions::DebugInfoConstructor)
1911 Opts.setDebugInfo(llvm::codegenoptions::LimitedDebugInfo);
1912 }
1913
1914 for (const auto &Arg : Args.getAllArgValues(Id: OPT_fdebug_prefix_map_EQ)) {
1915 auto Split = StringRef(Arg).split(Separator: '=');
1916 Opts.DebugPrefixMap.emplace_back(Args&: Split.first, Args&: Split.second);
1917 }
1918
1919 for (const auto &Arg : Args.getAllArgValues(Id: OPT_fcoverage_prefix_map_EQ)) {
1920 auto Split = StringRef(Arg).split(Separator: '=');
1921 Opts.CoveragePrefixMap.emplace_back(Args&: Split.first, Args&: Split.second);
1922 }
1923
1924 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() &&
1925 T.supportsDebugEntryValues())
1926 Opts.EmitCallSiteInfo = true;
1927
1928 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) {
1929 Diags.Report(DiagID: diag::warn_ignoring_verify_debuginfo_preserve_export)
1930 << Opts.DIBugsReportFilePath;
1931 Opts.DIBugsReportFilePath = "";
1932 }
1933
1934 Opts.NewStructPathTBAA = !Args.hasArg(Ids: OPT_no_struct_path_tbaa) &&
1935 Args.hasArg(Ids: OPT_new_struct_path_tbaa);
1936 Opts.OptimizeSize = getOptimizationLevelSize(Args);
1937 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin;
1938 if (Opts.SimplifyLibCalls)
1939 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs;
1940 Opts.UnrollLoops =
1941 Args.hasFlag(Pos: OPT_funroll_loops, Neg: OPT_fno_unroll_loops,
1942 Default: (Opts.OptimizationLevel > 1));
1943 // Match the LLVM pipeline default (PipelineTuningOptions::LoopInterchange),
1944 // which enables the pass whenever the optimization pipeline runs.
1945 Opts.InterchangeLoops =
1946 Args.hasFlag(Pos: OPT_floop_interchange, Neg: OPT_fno_loop_interchange, Default: true);
1947 Opts.FuseLoops = Args.hasFlag(Pos: OPT_fexperimental_loop_fusion,
1948 Neg: OPT_fno_experimental_loop_fusion, Default: false);
1949 Opts.BinutilsVersion =
1950 std::string(Args.getLastArgValue(Id: OPT_fbinutils_version_EQ));
1951
1952 Opts.DebugTemplateAlias = Args.hasArg(Ids: OPT_gtemplate_alias);
1953
1954 Opts.DebugNameTable = static_cast<unsigned>(
1955 Args.hasArg(Ids: OPT_ggnu_pubnames)
1956 ? llvm::DICompileUnit::DebugNameTableKind::GNU
1957 : Args.hasArg(Ids: OPT_gpubnames)
1958 ? llvm::DICompileUnit::DebugNameTableKind::Default
1959 : llvm::DICompileUnit::DebugNameTableKind::None);
1960 if (const Arg *A = Args.getLastArg(Ids: OPT_gsimple_template_names_EQ)) {
1961 StringRef Value = A->getValue();
1962 if (Value != "simple" && Value != "mangled")
1963 Diags.Report(DiagID: diag::err_drv_unsupported_option_argument)
1964 << A->getSpelling() << A->getValue();
1965 Opts.setDebugSimpleTemplateNames(
1966 StringRef(A->getValue()) == "simple"
1967 ? llvm::codegenoptions::DebugTemplateNamesKind::Simple
1968 : llvm::codegenoptions::DebugTemplateNamesKind::Mangled);
1969 }
1970
1971 if (Args.hasArg(Ids: OPT_ftime_report, Ids: OPT_ftime_report_EQ, Ids: OPT_ftime_report_json,
1972 Ids: OPT_stats_file_timers)) {
1973 Opts.TimePasses = true;
1974
1975 // -ftime-report= is only for new pass manager.
1976 if (const Arg *EQ = Args.getLastArg(Ids: OPT_ftime_report_EQ)) {
1977 StringRef Val = EQ->getValue();
1978 if (Val == "per-pass")
1979 Opts.TimePassesPerRun = false;
1980 else if (Val == "per-pass-run")
1981 Opts.TimePassesPerRun = true;
1982 else
1983 Diags.Report(DiagID: diag::err_drv_invalid_value)
1984 << EQ->getAsString(Args) << EQ->getValue();
1985 }
1986
1987 if (Args.getLastArg(Ids: OPT_ftime_report_json))
1988 Opts.TimePassesJson = true;
1989 }
1990
1991 Opts.PrepareForLTO = false;
1992 Opts.PrepareForThinLTO = false;
1993 if (Arg *A = Args.getLastArg(Ids: OPT_flto_EQ)) {
1994 Opts.PrepareForLTO = true;
1995 StringRef S = A->getValue();
1996 if (S == "thin")
1997 Opts.PrepareForThinLTO = true;
1998 else if (S != "full")
1999 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args) << S;
2000 if (Args.hasArg(Ids: OPT_funified_lto))
2001 Opts.PrepareForThinLTO = true;
2002 }
2003 if (Arg *A = Args.getLastArg(Ids: OPT_fthinlto_index_EQ)) {
2004 if (IK.getLanguage() != Language::LLVM_IR)
2005 Diags.Report(DiagID: diag::err_drv_argument_only_allowed_with)
2006 << A->getAsString(Args) << "-x ir";
2007 Opts.ThinLTOIndexFile =
2008 std::string(Args.getLastArgValue(Id: OPT_fthinlto_index_EQ));
2009 }
2010 if (Arg *A = Args.getLastArg(Ids: OPT_save_temps_EQ))
2011 Opts.SaveTempsFilePrefix =
2012 llvm::StringSwitch<std::string>(A->getValue())
2013 .Case(S: "obj", Value: OutputFile)
2014 .Default(Value: llvm::sys::path::filename(path: OutputFile).str());
2015
2016 if (Args.getLastArg(Ids: OPT_save_dynamic_debugging_temps))
2017 Opts.SaveDynDbgTempsFilePrefix = OutputFile;
2018
2019 // The memory profile runtime appends the pid to make this name more unique.
2020 const char *MemProfileBasename = "memprof.profraw";
2021 if (Args.hasArg(Ids: OPT_fmemory_profile_EQ)) {
2022 SmallString<128> Path(Args.getLastArgValue(Id: OPT_fmemory_profile_EQ));
2023 llvm::sys::path::append(path&: Path, a: MemProfileBasename);
2024 Opts.MemoryProfileOutput = std::string(Path);
2025 } else if (Args.hasArg(Ids: OPT_fmemory_profile))
2026 Opts.MemoryProfileOutput = MemProfileBasename;
2027
2028 if (Opts.CoverageNotesFile.size() || Opts.CoverageDataFile.size()) {
2029 if (Args.hasArg(Ids: OPT_coverage_version_EQ)) {
2030 StringRef CoverageVersion = Args.getLastArgValue(Id: OPT_coverage_version_EQ);
2031 if (CoverageVersion.size() != 4) {
2032 Diags.Report(DiagID: diag::err_drv_invalid_value)
2033 << Args.getLastArg(Ids: OPT_coverage_version_EQ)->getAsString(Args)
2034 << CoverageVersion;
2035 } else {
2036 memcpy(dest: Opts.CoverageVersion, src: CoverageVersion.data(), n: 4);
2037 }
2038 }
2039 }
2040 // FIXME: For backend options that are not yet recorded as function
2041 // attributes in the IR, keep track of them so we can embed them in a
2042 // separate data section and use them when building the bitcode.
2043 for (const auto &A : Args) {
2044 // Do not encode output and input.
2045 if (A->getOption().getID() == options::OPT_o ||
2046 A->getOption().getID() == options::OPT_INPUT ||
2047 A->getOption().getID() == options::OPT_x ||
2048 A->getOption().getID() == options::OPT_fembed_bitcode ||
2049 A->getOption().matches(ID: options::OPT_W_Group))
2050 continue;
2051 ArgStringList ASL;
2052 A->render(Args, Output&: ASL);
2053 for (const auto &arg : ASL) {
2054 StringRef ArgStr(arg);
2055 llvm::append_range(C&: Opts.CmdArgs, R&: ArgStr);
2056 // using \00 to separate each commandline options.
2057 Opts.CmdArgs.push_back(x: '\0');
2058 }
2059 }
2060
2061 auto XRayInstrBundles =
2062 Args.getAllArgValues(Id: OPT_fxray_instrumentation_bundle);
2063 if (XRayInstrBundles.empty())
2064 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All;
2065 else
2066 for (const auto &A : XRayInstrBundles)
2067 parseXRayInstrumentationBundle(FlagName: "-fxray-instrumentation-bundle=", Bundle: A, Args,
2068 D&: Diags, S&: Opts.XRayInstrumentationBundle);
2069
2070 if (const Arg *A = Args.getLastArg(Ids: OPT_fcf_protection_EQ)) {
2071 StringRef Name = A->getValue();
2072 if (Name == "full") {
2073 Opts.CFProtectionReturn = 1;
2074 Opts.CFProtectionBranch = 1;
2075 } else if (Name == "return")
2076 Opts.CFProtectionReturn = 1;
2077 else if (Name == "branch")
2078 Opts.CFProtectionBranch = 1;
2079 else if (Name != "none")
2080 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
2081 }
2082
2083 if (Opts.CFProtectionBranch && T.isRISCV()) {
2084 if (const Arg *A = Args.getLastArg(Ids: OPT_mcf_branch_label_scheme_EQ)) {
2085 const auto Scheme =
2086 llvm::StringSwitch<CFBranchLabelSchemeKind>(A->getValue())
2087#define CF_BRANCH_LABEL_SCHEME(Kind, FlagVal) \
2088 .Case(#FlagVal, CFBranchLabelSchemeKind::Kind)
2089#include "clang/Basic/CFProtectionOptions.def"
2090 .Default(Value: CFBranchLabelSchemeKind::Default);
2091 if (Scheme != CFBranchLabelSchemeKind::Default)
2092 Opts.setCFBranchLabelScheme(Scheme);
2093 else
2094 Diags.Report(DiagID: diag::err_drv_invalid_value)
2095 << A->getAsString(Args) << A->getValue();
2096 }
2097 }
2098
2099 if (const Arg *A = Args.getLastArg(Ids: OPT_mfunction_return_EQ)) {
2100 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue())
2101 .Case(S: "keep", Value: llvm::FunctionReturnThunksKind::Keep)
2102 .Case(S: "thunk-extern", Value: llvm::FunctionReturnThunksKind::Extern)
2103 .Default(Value: llvm::FunctionReturnThunksKind::Invalid);
2104 // SystemZ might want to add support for "expolines."
2105 if (!T.isX86())
2106 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
2107 << A->getSpelling() << T.getTriple();
2108 else if (Val == llvm::FunctionReturnThunksKind::Invalid)
2109 Diags.Report(DiagID: diag::err_drv_invalid_value)
2110 << A->getAsString(Args) << A->getValue();
2111 else if (Val == llvm::FunctionReturnThunksKind::Extern &&
2112 Args.getLastArgValue(Id: OPT_mcmodel_EQ) == "large")
2113 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
2114 << A->getAsString(Args)
2115 << Args.getLastArg(Ids: OPT_mcmodel_EQ)->getAsString(Args);
2116 else
2117 Opts.FunctionReturnThunks = static_cast<unsigned>(Val);
2118 }
2119
2120 for (auto *A :
2121 Args.filtered(Ids: OPT_mlink_bitcode_file, Ids: OPT_mlink_builtin_bitcode)) {
2122 CodeGenOptions::BitcodeFileToLink F;
2123 F.Filename = A->getValue();
2124 if (A->getOption().matches(ID: OPT_mlink_builtin_bitcode)) {
2125 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded;
2126 // When linking CUDA bitcode, propagate function attributes so that
2127 // e.g. libdevice gets fast-math attrs if we're building with fast-math.
2128 F.PropagateAttrs = true;
2129 F.Internalize = true;
2130 }
2131 Opts.LinkBitcodeFiles.push_back(x: F);
2132 }
2133
2134 if (Arg *A = Args.getLastArg(Ids: OPT_fdenormal_fp_math_EQ)) {
2135 StringRef Val = A->getValue();
2136 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Str: Val);
2137 Opts.FP32DenormalMode = Opts.FPDenormalMode;
2138 if (!Opts.FPDenormalMode.isValid())
2139 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
2140 }
2141
2142 if (Arg *A = Args.getLastArg(Ids: OPT_fdenormal_fp_math_f32_EQ)) {
2143 StringRef Val = A->getValue();
2144 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Str: Val);
2145 if (!Opts.FP32DenormalMode.isValid())
2146 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
2147 }
2148
2149 // X86_32 has -fppc-struct-return and -freg-struct-return.
2150 // PPC32 has -maix-struct-return and -msvr4-struct-return.
2151 if (Arg *A =
2152 Args.getLastArg(Ids: OPT_fpcc_struct_return, Ids: OPT_freg_struct_return,
2153 Ids: OPT_maix_struct_return, Ids: OPT_msvr4_struct_return)) {
2154 // TODO: We might want to consider enabling these options on AIX in the
2155 // future.
2156 if (T.isOSAIX())
2157 Diags.Report(DiagID: diag::err_drv_unsupported_opt_for_target)
2158 << A->getSpelling() << T.str();
2159
2160 const Option &O = A->getOption();
2161 if (O.matches(ID: OPT_fpcc_struct_return) ||
2162 O.matches(ID: OPT_maix_struct_return)) {
2163 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack);
2164 } else {
2165 assert(O.matches(OPT_freg_struct_return) ||
2166 O.matches(OPT_msvr4_struct_return));
2167 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs);
2168 }
2169 }
2170
2171 if (Arg *A = Args.getLastArg(Ids: OPT_mxcoff_roptr)) {
2172 if (!T.isOSAIX())
2173 Diags.Report(DiagID: diag::err_drv_unsupported_opt_for_target)
2174 << A->getSpelling() << T.str();
2175
2176 // Since the storage mapping class is specified per csect,
2177 // without using data sections, it is less effective to use read-only
2178 // pointers. Using read-only pointers may cause other RO variables in the
2179 // same csect to become RW when the linker acts upon `-bforceimprw`;
2180 // therefore, we require that separate data sections
2181 // are used when `-mxcoff-roptr` is in effect. We respect the setting of
2182 // data-sections since we have not found reasons to do otherwise that
2183 // overcome the user surprise of not respecting the setting.
2184 if (!Args.hasFlag(Pos: OPT_fdata_sections, Neg: OPT_fno_data_sections, Default: false))
2185 Diags.Report(DiagID: diag::err_roptr_requires_data_sections);
2186
2187 Opts.XCOFFReadOnlyPointers = true;
2188 }
2189
2190 if (Arg *A = Args.getLastArg(Ids: OPT_mabi_EQ_quadword_atomics)) {
2191 if (!T.isOSAIX() || T.isPPC32())
2192 Diags.Report(DiagID: diag::err_drv_unsupported_opt_for_target)
2193 << A->getSpelling() << T.str();
2194 }
2195
2196 bool NeedLocTracking = false;
2197
2198 if (!Opts.OptRecordFile.empty())
2199 NeedLocTracking = true;
2200
2201 if (Arg *A = Args.getLastArg(Ids: OPT_opt_record_passes)) {
2202 Opts.OptRecordPasses = A->getValue();
2203 NeedLocTracking = true;
2204 }
2205
2206 if (Arg *A = Args.getLastArg(Ids: OPT_opt_record_format)) {
2207 Opts.OptRecordFormat = A->getValue();
2208 NeedLocTracking = true;
2209 }
2210
2211 Opts.OptimizationRemark =
2212 ParseOptimizationRemark(Diags, Args, OptEQ: OPT_Rpass_EQ, Name: "pass");
2213
2214 Opts.OptimizationRemarkMissed =
2215 ParseOptimizationRemark(Diags, Args, OptEQ: OPT_Rpass_missed_EQ, Name: "pass-missed");
2216
2217 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark(
2218 Diags, Args, OptEQ: OPT_Rpass_analysis_EQ, Name: "pass-analysis");
2219
2220 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() ||
2221 Opts.OptimizationRemarkMissed.hasValidPattern() ||
2222 Opts.OptimizationRemarkAnalysis.hasValidPattern();
2223
2224 bool UsingSampleProfile = !Opts.SampleProfileFile.empty();
2225 bool UsingProfile =
2226 UsingSampleProfile || !Opts.ProfileInstrumentUsePath.empty();
2227
2228 if (Opts.DiagnosticsWithHotness && !UsingProfile &&
2229 // An IR file will contain PGO as metadata
2230 IK.getLanguage() != Language::LLVM_IR)
2231 Diags.Report(DiagID: diag::warn_drv_diagnostics_hotness_requires_pgo)
2232 << "-fdiagnostics-show-hotness";
2233
2234 // Parse remarks hotness threshold. Valid value is either integer or 'auto'.
2235 if (auto *arg =
2236 Args.getLastArg(Ids: options::OPT_fdiagnostics_hotness_threshold_EQ)) {
2237 auto ResultOrErr =
2238 llvm::remarks::parseHotnessThresholdOption(Arg: arg->getValue());
2239
2240 if (!ResultOrErr) {
2241 Diags.Report(DiagID: diag::err_drv_invalid_diagnotics_hotness_threshold)
2242 << "-fdiagnostics-hotness-threshold=";
2243 } else {
2244 Opts.DiagnosticsHotnessThreshold = *ResultOrErr;
2245 if ((!Opts.DiagnosticsHotnessThreshold ||
2246 *Opts.DiagnosticsHotnessThreshold > 0) &&
2247 !UsingProfile)
2248 Diags.Report(DiagID: diag::warn_drv_diagnostics_hotness_requires_pgo)
2249 << "-fdiagnostics-hotness-threshold=";
2250 }
2251 }
2252
2253 if (auto *arg =
2254 Args.getLastArg(Ids: options::OPT_fdiagnostics_misexpect_tolerance_EQ)) {
2255 auto ResultOrErr = parseToleranceOption(Arg: arg->getValue());
2256
2257 if (!ResultOrErr) {
2258 Diags.Report(DiagID: diag::err_drv_invalid_diagnotics_misexpect_tolerance)
2259 << "-fdiagnostics-misexpect-tolerance=";
2260 } else {
2261 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr;
2262 if ((!Opts.DiagnosticsMisExpectTolerance ||
2263 *Opts.DiagnosticsMisExpectTolerance > 0) &&
2264 !UsingProfile)
2265 Diags.Report(DiagID: diag::warn_drv_diagnostics_misexpect_requires_pgo)
2266 << "-fdiagnostics-misexpect-tolerance=";
2267 }
2268 }
2269
2270 // If the user requested to use a sample profile for PGO, then the
2271 // backend will need to track source location information so the profile
2272 // can be incorporated into the IR.
2273 if (UsingSampleProfile)
2274 NeedLocTracking = true;
2275
2276 if (!Opts.StackUsageFile.empty())
2277 NeedLocTracking = true;
2278
2279 // If the user requested a flag that requires source locations available in
2280 // the backend, make sure that the backend tracks source location information.
2281 if (NeedLocTracking &&
2282 Opts.getDebugInfo() == llvm::codegenoptions::NoDebugInfo)
2283 Opts.setDebugInfo(llvm::codegenoptions::LocTrackingOnly);
2284
2285 // Parse -fsanitize-recover= arguments.
2286 // FIXME: Report unrecoverable sanitizers incorrectly specified here.
2287 parseSanitizerKinds(FlagName: "-fsanitize-recover=",
2288 Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_recover_EQ), Diags,
2289 S&: Opts.SanitizeRecover);
2290 parseSanitizerKinds(FlagName: "-fsanitize-trap=",
2291 Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_trap_EQ), Diags,
2292 S&: Opts.SanitizeTrap);
2293 parseSanitizerKinds(FlagName: "-fsanitize-merge=",
2294 Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_merge_handlers_EQ),
2295 Diags, S&: Opts.SanitizeMergeHandlers);
2296
2297 // Parse -fsanitize-skip-hot-cutoff= arguments.
2298 Opts.SanitizeSkipHotCutoffs = parseSanitizerWeightedKinds(
2299 FlagName: "-fsanitize-skip-hot-cutoff=",
2300 Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_skip_hot_cutoff_EQ), Diags);
2301
2302 parseSanitizerKinds(
2303 FlagName: "-fsanitize-annotate-debug-info=",
2304 Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_annotate_debug_info_EQ), Diags,
2305 S&: Opts.SanitizeAnnotateDebugInfo);
2306
2307 if (StringRef V =
2308 Args.getLastArgValue(Id: OPT_fallow_runtime_check_skip_hot_cutoff_EQ);
2309 !V.empty()) {
2310 double A;
2311 if (V.getAsDouble(Result&: A) || A < 0.0 || A > 1.0) {
2312 Diags.Report(DiagID: diag::err_drv_invalid_value)
2313 << "-fallow-runtime-check-skip-hot-cutoff=" << V;
2314 } else {
2315 Opts.AllowRuntimeCheckSkipHotCutoff = A;
2316 }
2317 }
2318
2319 Opts.EmitVersionIdentMetadata = Args.hasFlag(Pos: OPT_Qy, Neg: OPT_Qn, Default: true);
2320
2321 if (!LangOpts->CUDAIsDevice)
2322 parsePointerAuthOptions(Opts&: Opts.PointerAuth, LangOpts: *LangOpts, Triple: T, Diags);
2323
2324 if (Args.hasArg(Ids: options::OPT_ffinite_loops))
2325 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always;
2326 else if (Args.hasArg(Ids: options::OPT_fno_finite_loops))
2327 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never;
2328
2329 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag(
2330 Pos: options::OPT_mamdgpu_ieee, Neg: options::OPT_mno_amdgpu_ieee, Default: true);
2331 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs)
2332 Diags.Report(DiagID: diag::err_drv_amdgpu_ieee_without_no_honor_nans);
2333
2334 Opts.StaticClosure = Args.hasArg(Ids: options::OPT_static_libclosure);
2335
2336 if (!Opts.HLSLRecordCommandLine.empty()) {
2337 auto ParsedArgs =
2338 clang::parseEscapedCommandLine(CommandLine: Opts.HLSLRecordCommandLine.c_str());
2339 if (!ParsedArgs)
2340 Diags.Report(DiagID: diag::err_drv_invalid_escaped_command_line)
2341 << llvm::toString(E: ParsedArgs.takeError());
2342 else
2343 Opts.HLSLParsedCommandLine = std::move(*ParsedArgs);
2344 }
2345
2346 return Diags.getNumErrors() == NumErrorsBefore;
2347}
2348
2349static void GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts,
2350 ArgumentConsumer Consumer) {
2351 const DependencyOutputOptions &DependencyOutputOpts = Opts;
2352#define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \
2353 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
2354#include "clang/Options/Options.inc"
2355#undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING
2356
2357 if (Opts.ShowIncludesDest != ShowIncludesDestination::None)
2358 GenerateArg(Consumer, OptSpecifier: OPT_show_includes);
2359
2360 for (const auto &Dep : Opts.ExtraDeps) {
2361 switch (Dep.second) {
2362 case EDK_SanitizeIgnorelist:
2363 // Sanitizer ignorelist arguments are generated from LanguageOptions.
2364 continue;
2365 case EDK_ModuleFile:
2366 // Module file arguments are generated from FrontendOptions and
2367 // HeaderSearchOptions.
2368 continue;
2369 case EDK_ProfileList:
2370 // Profile list arguments are generated from LanguageOptions via the
2371 // marshalling infrastructure.
2372 continue;
2373 case EDK_DepFileEntry:
2374 GenerateArg(Consumer, OptSpecifier: OPT_fdepfile_entry, Value: Dep.first);
2375 break;
2376 }
2377 }
2378}
2379
2380static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
2381 ArgList &Args, DiagnosticsEngine &Diags,
2382 frontend::ActionKind Action,
2383 bool ShowLineMarkers) {
2384 unsigned NumErrorsBefore = Diags.getNumErrors();
2385
2386 DependencyOutputOptions &DependencyOutputOpts = Opts;
2387#define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \
2388 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
2389#include "clang/Options/Options.inc"
2390#undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING
2391
2392 if (Args.hasArg(Ids: OPT_show_includes)) {
2393 // Writing both /showIncludes and preprocessor output to stdout
2394 // would produce interleaved output, so use stderr for /showIncludes.
2395 // This behaves the same as cl.exe, when /E, /EP or /P are passed.
2396 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers)
2397 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr;
2398 else
2399 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout;
2400 } else {
2401 Opts.ShowIncludesDest = ShowIncludesDestination::None;
2402 }
2403
2404 // Add sanitizer ignorelists as extra dependencies.
2405 // They won't be discovered by the regular preprocessor, so
2406 // we let make / ninja to know about this implicit dependency.
2407 if (!Args.hasArg(Ids: OPT_fno_sanitize_ignorelist)) {
2408 for (const auto *A : Args.filtered(Ids: OPT_fsanitize_ignorelist_EQ)) {
2409 StringRef Val = A->getValue();
2410 if (!Val.contains(C: '='))
2411 Opts.ExtraDeps.emplace_back(args: std::string(Val), args: EDK_SanitizeIgnorelist);
2412 }
2413 if (Opts.IncludeSystemHeaders) {
2414 for (const auto *A : Args.filtered(Ids: OPT_fsanitize_system_ignorelist_EQ)) {
2415 StringRef Val = A->getValue();
2416 if (!Val.contains(C: '='))
2417 Opts.ExtraDeps.emplace_back(args: std::string(Val), args: EDK_SanitizeIgnorelist);
2418 }
2419 }
2420 }
2421
2422 // -fprofile-list= dependencies.
2423 for (const auto &Filename : Args.getAllArgValues(Id: OPT_fprofile_list_EQ))
2424 Opts.ExtraDeps.emplace_back(args: Filename, args: EDK_ProfileList);
2425
2426 // Propagate the extra dependencies.
2427 for (const auto *A : Args.filtered(Ids: OPT_fdepfile_entry))
2428 Opts.ExtraDeps.emplace_back(args: A->getValue(), args: EDK_DepFileEntry);
2429
2430 // Only the -fmodule-file=<file> form.
2431 for (const auto *A : Args.filtered(Ids: OPT_fmodule_file)) {
2432 StringRef Val = A->getValue();
2433 if (!Val.contains(C: '='))
2434 Opts.ExtraDeps.emplace_back(args: std::string(Val), args: EDK_ModuleFile);
2435 }
2436
2437 // Check for invalid combinations of header-include-format
2438 // and header-include-filtering.
2439 if (Opts.HeaderIncludeFormat == HIFMT_Textual &&
2440 Opts.HeaderIncludeFiltering != HIFIL_None) {
2441 if (Args.hasArg(Ids: OPT_header_include_format_EQ))
2442 Diags.Report(DiagID: diag::err_drv_print_header_cc1_invalid_combination)
2443 << headerIncludeFormatKindToString(K: Opts.HeaderIncludeFormat)
2444 << headerIncludeFilteringKindToString(K: Opts.HeaderIncludeFiltering);
2445 else
2446 Diags.Report(DiagID: diag::err_drv_print_header_cc1_invalid_filtering)
2447 << headerIncludeFilteringKindToString(K: Opts.HeaderIncludeFiltering);
2448 } else if (Opts.HeaderIncludeFormat == HIFMT_JSON &&
2449 Opts.HeaderIncludeFiltering == HIFIL_None) {
2450 if (Args.hasArg(Ids: OPT_header_include_filtering_EQ))
2451 Diags.Report(DiagID: diag::err_drv_print_header_cc1_invalid_combination)
2452 << headerIncludeFormatKindToString(K: Opts.HeaderIncludeFormat)
2453 << headerIncludeFilteringKindToString(K: Opts.HeaderIncludeFiltering);
2454 else
2455 Diags.Report(DiagID: diag::err_drv_print_header_cc1_invalid_format)
2456 << headerIncludeFormatKindToString(K: Opts.HeaderIncludeFormat);
2457 }
2458
2459 return Diags.getNumErrors() == NumErrorsBefore;
2460}
2461
2462static ShowColorsKind parseShowColorsMode(const ArgList &Args,
2463 bool DefaultColor) {
2464 // Color diagnostics default to auto ("on" if terminal supports) in the driver
2465 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color.
2466 // Support both clang's -f[no-]color-diagnostics and gcc's
2467 // -f[no-]diagnostics-colors[=never|always|auto].
2468 ShowColorsKind Mode =
2469 DefaultColor ? ShowColorsKind::Auto : ShowColorsKind::Off;
2470 for (auto *A : Args) {
2471 const Option &O = A->getOption();
2472 if (O.matches(ID: options::OPT_fcolor_diagnostics)) {
2473 Mode = ShowColorsKind::On;
2474 } else if (O.matches(ID: options::OPT_fno_color_diagnostics)) {
2475 Mode = ShowColorsKind::Off;
2476 } else if (O.matches(ID: options::OPT_fdiagnostics_color_EQ)) {
2477 StringRef Value(A->getValue());
2478 if (Value == "always")
2479 Mode = ShowColorsKind::On;
2480 else if (Value == "never")
2481 Mode = ShowColorsKind::Off;
2482 else if (Value == "auto")
2483 Mode = ShowColorsKind::Auto;
2484 }
2485 }
2486 return Mode;
2487}
2488
2489static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes,
2490 DiagnosticsEngine &Diags) {
2491 bool Success = true;
2492 for (const auto &Prefix : VerifyPrefixes) {
2493 // Every prefix must start with a letter and contain only alphanumeric
2494 // characters, hyphens, and underscores.
2495 auto BadChar = llvm::find_if(Range: Prefix, P: [](char C) {
2496 return !isAlphanumeric(c: C) && C != '-' && C != '_';
2497 });
2498 if (BadChar != Prefix.end() || !isLetter(c: Prefix[0])) {
2499 Success = false;
2500 Diags.Report(DiagID: diag::err_drv_invalid_value) << "-verify=" << Prefix;
2501 Diags.Report(DiagID: diag::note_drv_verify_prefix_spelling);
2502 }
2503 }
2504 return Success;
2505}
2506
2507static void GenerateFileSystemArgs(const FileSystemOptions &Opts,
2508 ArgumentConsumer Consumer) {
2509 const FileSystemOptions &FileSystemOpts = Opts;
2510
2511#define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \
2512 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
2513#include "clang/Options/Options.inc"
2514#undef FILE_SYSTEM_OPTION_WITH_MARSHALLING
2515}
2516
2517static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args,
2518 DiagnosticsEngine &Diags) {
2519 unsigned NumErrorsBefore = Diags.getNumErrors();
2520
2521 FileSystemOptions &FileSystemOpts = Opts;
2522
2523#define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \
2524 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
2525#include "clang/Options/Options.inc"
2526#undef FILE_SYSTEM_OPTION_WITH_MARSHALLING
2527
2528 return Diags.getNumErrors() == NumErrorsBefore;
2529}
2530
2531static void GenerateMigratorArgs(const MigratorOptions &Opts,
2532 ArgumentConsumer Consumer) {
2533 const MigratorOptions &MigratorOpts = Opts;
2534#define MIGRATOR_OPTION_WITH_MARSHALLING(...) \
2535 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
2536#include "clang/Options/Options.inc"
2537#undef MIGRATOR_OPTION_WITH_MARSHALLING
2538}
2539
2540static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args,
2541 DiagnosticsEngine &Diags) {
2542 unsigned NumErrorsBefore = Diags.getNumErrors();
2543
2544 MigratorOptions &MigratorOpts = Opts;
2545
2546#define MIGRATOR_OPTION_WITH_MARSHALLING(...) \
2547 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
2548#include "clang/Options/Options.inc"
2549#undef MIGRATOR_OPTION_WITH_MARSHALLING
2550
2551 return Diags.getNumErrors() == NumErrorsBefore;
2552}
2553
2554void CompilerInvocationBase::GenerateDiagnosticArgs(
2555 const DiagnosticOptions &Opts, ArgumentConsumer Consumer,
2556 bool DefaultDiagColor) {
2557 const DiagnosticOptions *DiagnosticOpts = &Opts;
2558#define DIAG_OPTION_WITH_MARSHALLING(...) \
2559 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
2560#include "clang/Options/Options.inc"
2561#undef DIAG_OPTION_WITH_MARSHALLING
2562
2563 if (!Opts.DiagnosticSerializationFile.empty())
2564 GenerateArg(Consumer, OptSpecifier: OPT_diagnostic_serialized_file,
2565 Value: Opts.DiagnosticSerializationFile);
2566
2567 switch (Opts.getShowColors()) {
2568 case ShowColorsKind::On:
2569 GenerateArg(Consumer, OptSpecifier: OPT_fcolor_diagnostics);
2570 break;
2571 case ShowColorsKind::Off:
2572 GenerateArg(Consumer, OptSpecifier: OPT_fno_color_diagnostics);
2573 break;
2574 case ShowColorsKind::Auto:
2575 break;
2576 }
2577
2578 if (Opts.VerifyDiagnostics &&
2579 llvm::is_contained(Range: Opts.VerifyPrefixes, Element: "expected"))
2580 GenerateArg(Consumer, OptSpecifier: OPT_verify);
2581
2582 for (const auto &Prefix : Opts.VerifyPrefixes)
2583 if (Prefix != "expected")
2584 GenerateArg(Consumer, OptSpecifier: OPT_verify_EQ, Value: Prefix);
2585
2586 if (Opts.VerifyDirectives) {
2587 GenerateArg(Consumer, OptSpecifier: OPT_verify_directives);
2588 }
2589
2590 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected();
2591 if (VIU == DiagnosticLevelMask::None) {
2592 // This is the default, don't generate anything.
2593 } else if (VIU == DiagnosticLevelMask::All) {
2594 GenerateArg(Consumer, OptSpecifier: OPT_verify_ignore_unexpected);
2595 } else {
2596 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0)
2597 GenerateArg(Consumer, OptSpecifier: OPT_verify_ignore_unexpected_EQ, Value: "note");
2598 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0)
2599 GenerateArg(Consumer, OptSpecifier: OPT_verify_ignore_unexpected_EQ, Value: "remark");
2600 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0)
2601 GenerateArg(Consumer, OptSpecifier: OPT_verify_ignore_unexpected_EQ, Value: "warning");
2602 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0)
2603 GenerateArg(Consumer, OptSpecifier: OPT_verify_ignore_unexpected_EQ, Value: "error");
2604 }
2605
2606 for (const auto &Warning : Opts.Warnings) {
2607 // This option is automatically generated from UndefPrefixes.
2608 if (Warning == "undef-prefix")
2609 continue;
2610 // This option is automatically generated from CheckConstexprFunctionBodies.
2611 if (Warning == "invalid-constexpr" || Warning == "no-invalid-constexpr")
2612 continue;
2613 Consumer(StringRef("-W") + Warning);
2614 }
2615
2616 for (const auto &Remark : Opts.Remarks) {
2617 // These arguments are generated from OptimizationRemark fields of
2618 // CodeGenOptions.
2619 StringRef IgnoredRemarks[] = {"pass", "no-pass",
2620 "pass-analysis", "no-pass-analysis",
2621 "pass-missed", "no-pass-missed"};
2622 if (llvm::is_contained(Range&: IgnoredRemarks, Element: Remark))
2623 continue;
2624
2625 Consumer(StringRef("-R") + Remark);
2626 }
2627
2628 if (!Opts.DiagnosticSuppressionMappingsFile.empty()) {
2629 GenerateArg(Consumer, OptSpecifier: OPT_warning_suppression_mappings_EQ,
2630 Value: Opts.DiagnosticSuppressionMappingsFile);
2631 }
2632}
2633
2634std::unique_ptr<DiagnosticOptions>
2635clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) {
2636 auto DiagOpts = std::make_unique<DiagnosticOptions>();
2637 unsigned MissingArgIndex, MissingArgCount;
2638 InputArgList Args = getDriverOptTable().ParseArgs(
2639 Args: Argv.slice(N: 1), MissingArgIndex, MissingArgCount);
2640
2641 bool ShowColors = true;
2642 if (std::optional<std::string> NoColor =
2643 llvm::sys::Process::GetEnv(name: "NO_COLOR");
2644 NoColor && !NoColor->empty()) {
2645 // If the user set the NO_COLOR environment variable, we'll honor that
2646 // unless the command line overrides it.
2647 ShowColors = false;
2648 }
2649
2650 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs.
2651 // Any errors that would be diagnosed here will also be diagnosed later,
2652 // when the DiagnosticsEngine actually exists.
2653 (void)ParseDiagnosticArgs(Opts&: *DiagOpts, Args, /*Diags=*/nullptr, DefaultDiagColor: ShowColors);
2654 return DiagOpts;
2655}
2656
2657bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
2658 DiagnosticsEngine *Diags,
2659 bool DefaultDiagColor) {
2660 std::optional<DiagnosticOptions> IgnoringDiagOpts;
2661 std::optional<DiagnosticsEngine> IgnoringDiags;
2662 if (!Diags) {
2663 IgnoringDiagOpts.emplace();
2664 IgnoringDiags.emplace(args: DiagnosticIDs::create(), args&: *IgnoringDiagOpts,
2665 args: new IgnoringDiagConsumer());
2666 Diags = &*IgnoringDiags;
2667 }
2668
2669 unsigned NumErrorsBefore = Diags->getNumErrors();
2670
2671 // The key paths of diagnostic options defined in Options.td start with
2672 // "DiagnosticOpts->". Let's provide the expected variable name and type.
2673 DiagnosticOptions *DiagnosticOpts = &Opts;
2674
2675#define DIAG_OPTION_WITH_MARSHALLING(...) \
2676 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, __VA_ARGS__)
2677#include "clang/Options/Options.inc"
2678#undef DIAG_OPTION_WITH_MARSHALLING
2679
2680 llvm::sys::Process::UseANSIEscapeCodes(enable: Opts.UseANSIEscapeCodes);
2681
2682 if (Arg *A =
2683 Args.getLastArg(Ids: OPT_diagnostic_serialized_file, Ids: OPT__serialize_diags))
2684 Opts.DiagnosticSerializationFile = A->getValue();
2685 Opts.setShowColors(parseShowColorsMode(Args, DefaultColor: DefaultDiagColor));
2686
2687 Opts.VerifyDiagnostics = Args.hasArg(Ids: OPT_verify) || Args.hasArg(Ids: OPT_verify_EQ);
2688 Opts.VerifyDirectives = Args.hasArg(Ids: OPT_verify_directives);
2689 Opts.VerifyPrefixes = Args.getAllArgValues(Id: OPT_verify_EQ);
2690 if (Args.hasArg(Ids: OPT_verify))
2691 Opts.VerifyPrefixes.push_back(x: "expected");
2692 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and
2693 // then sort it to prepare for fast lookup using std::binary_search.
2694 if (!checkVerifyPrefixes(VerifyPrefixes: Opts.VerifyPrefixes, Diags&: *Diags))
2695 Opts.VerifyDiagnostics = false;
2696 else
2697 llvm::sort(C&: Opts.VerifyPrefixes);
2698 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None;
2699 parseDiagnosticLevelMask(
2700 FlagName: "-verify-ignore-unexpected=",
2701 Levels: Args.getAllArgValues(Id: OPT_verify_ignore_unexpected_EQ), Diags&: *Diags, M&: DiagMask);
2702 if (Args.hasArg(Ids: OPT_verify_ignore_unexpected))
2703 DiagMask = DiagnosticLevelMask::All;
2704 Opts.setVerifyIgnoreUnexpected(DiagMask);
2705 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
2706 Diags->Report(DiagID: diag::warn_ignoring_ftabstop_value)
2707 << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
2708 Opts.TabStop = DiagnosticOptions::DefaultTabStop;
2709 }
2710
2711 if (const Arg *A = Args.getLastArg(Ids: OPT_warning_suppression_mappings_EQ))
2712 Opts.DiagnosticSuppressionMappingsFile = A->getValue();
2713
2714 addDiagnosticArgs(Args, Group: OPT_W_Group, GroupWithValue: OPT_W_value_Group, Diagnostics&: Opts.Warnings);
2715 addDiagnosticArgs(Args, Group: OPT_R_Group, GroupWithValue: OPT_R_value_Group, Diagnostics&: Opts.Remarks);
2716
2717 return Diags->getNumErrors() == NumErrorsBefore;
2718}
2719
2720unsigned clang::getOptimizationLevel(const ArgList &Args, InputKind IK,
2721 DiagnosticsEngine &Diags) {
2722 unsigned DefaultOpt = 0;
2723 if ((IK.getLanguage() == Language::OpenCL ||
2724 IK.getLanguage() == Language::OpenCLCXX) &&
2725 !Args.hasArg(Ids: OPT_cl_opt_disable))
2726 DefaultOpt = 2;
2727
2728 if (Arg *A = Args.getLastArg(Ids: options::OPT_O_Group)) {
2729 if (A->getOption().matches(ID: options::OPT_O0))
2730 return 0;
2731
2732 if (A->getOption().matches(ID: options::OPT_Ofast) ||
2733 A->getOption().matches(ID: options::OPT_O4))
2734 return 3;
2735
2736 assert(A->getOption().matches(options::OPT_O));
2737
2738 StringRef S(A->getValue());
2739 if (S == "s" || S == "z")
2740 return 2;
2741
2742 if (S == "g")
2743 return 1;
2744
2745 DefaultOpt = getLastArgIntValue(Args, Id: OPT_O, Default: DefaultOpt, Diags);
2746 }
2747
2748 unsigned MaxOptLevel = 3;
2749 if (DefaultOpt > MaxOptLevel) {
2750 // If the optimization level is not supported, fall back on the default
2751 // optimization
2752 Diags.Report(DiagID: diag::warn_drv_optimization_value)
2753 << Args.getLastArg(Ids: OPT_O)->getAsString(Args) << "-O" << MaxOptLevel;
2754 DefaultOpt = MaxOptLevel;
2755 }
2756
2757 return DefaultOpt;
2758}
2759
2760unsigned clang::getOptimizationLevelSize(const ArgList &Args) {
2761 if (Arg *A = Args.getLastArg(Ids: options::OPT_O_Group)) {
2762 if (A->getOption().matches(ID: options::OPT_O)) {
2763 switch (A->getValue()[0]) {
2764 default:
2765 return 0;
2766 case 's':
2767 return 1;
2768 case 'z':
2769 return 2;
2770 }
2771 }
2772 }
2773 return 0;
2774}
2775
2776/// Parse the argument to the -ftest-module-file-extension
2777/// command-line argument.
2778///
2779/// \returns true on error, false on success.
2780static bool parseTestModuleFileExtensionArg(StringRef Arg,
2781 std::string &BlockName,
2782 unsigned &MajorVersion,
2783 unsigned &MinorVersion,
2784 bool &Hashed,
2785 std::string &UserInfo) {
2786 SmallVector<StringRef, 5> Args;
2787 Arg.split(A&: Args, Separator: ':', MaxSplit: 5);
2788 if (Args.size() < 5)
2789 return true;
2790
2791 BlockName = std::string(Args[0]);
2792 if (Args[1].getAsInteger(Radix: 10, Result&: MajorVersion)) return true;
2793 if (Args[2].getAsInteger(Radix: 10, Result&: MinorVersion)) return true;
2794 if (Args[3].getAsInteger(Radix: 2, Result&: Hashed)) return true;
2795 if (Args.size() > 4)
2796 UserInfo = std::string(Args[4]);
2797 return false;
2798}
2799
2800/// Return a table that associates command line option specifiers with the
2801/// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is
2802/// intentionally missing, as this case is handled separately from other
2803/// frontend options.
2804static const auto &getFrontendActionTable() {
2805 static const std::pair<frontend::ActionKind, unsigned> Table[] = {
2806 {frontend::ASTDeclList, OPT_ast_list},
2807
2808 {frontend::ASTDump, OPT_ast_dump_all_EQ},
2809 {frontend::ASTDump, OPT_ast_dump_all},
2810 {frontend::ASTDump, OPT_ast_dump_EQ},
2811 {frontend::ASTDump, OPT_ast_dump},
2812 {frontend::ASTDump, OPT_ast_dump_lookups},
2813 {frontend::ASTDump, OPT_ast_dump_decl_types},
2814
2815 {frontend::ASTPrint, OPT_ast_print},
2816 {frontend::ASTView, OPT_ast_view},
2817 {frontend::DumpCompilerOptions, OPT_compiler_options_dump},
2818 {frontend::DumpRawTokens, OPT_dump_raw_tokens},
2819 {frontend::DumpTokens, OPT_dump_tokens},
2820 {frontend::EmitAssembly, OPT_S},
2821 {frontend::EmitBC, OPT_emit_llvm_bc},
2822 {frontend::EmitCIR, OPT_emit_cir},
2823 {frontend::EmitCIRBC, OPT_emit_cir_bc},
2824 {frontend::EmitHTML, OPT_emit_html},
2825 {frontend::EmitLLVM, OPT_emit_llvm},
2826 {frontend::EmitLLVMOnly, OPT_emit_llvm_only},
2827 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only},
2828 {frontend::EmitObj, OPT_emit_obj},
2829 {frontend::ExtractAPI, OPT_extract_api},
2830
2831 {frontend::FixIt, OPT_fixit_EQ},
2832 {frontend::FixIt, OPT_fixit},
2833
2834 {frontend::GenerateModule, OPT_emit_module},
2835 {frontend::GenerateModuleInterface, OPT_emit_module_interface},
2836 {frontend::GenerateReducedModuleInterface,
2837 OPT_emit_reduced_module_interface},
2838 {frontend::GenerateHeaderUnit, OPT_emit_header_unit},
2839 {frontend::GeneratePCH, OPT_emit_pch},
2840 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs},
2841 {frontend::InitOnly, OPT_init_only},
2842 {frontend::ParseSyntaxOnly, OPT_fsyntax_only},
2843 {frontend::ModuleFileInfo, OPT_module_file_info},
2844 {frontend::VerifyPCH, OPT_verify_pch},
2845 {frontend::PrintPreamble, OPT_print_preamble},
2846 {frontend::PrintPreprocessedInput, OPT_E},
2847 {frontend::RewriteMacros, OPT_rewrite_macros},
2848 {frontend::RewriteObjC, OPT_rewrite_objc},
2849 {frontend::RewriteTest, OPT_rewrite_test},
2850 {frontend::RunAnalysis, OPT_analyze},
2851 {frontend::RunPreprocessorOnly, OPT_Eonly},
2852 {frontend::PrintDependencyDirectivesSourceMinimizerOutput,
2853 OPT_print_dependency_directives_minimized_source},
2854 };
2855
2856 return Table;
2857}
2858
2859/// Maps command line option to frontend action.
2860static std::optional<frontend::ActionKind>
2861getFrontendAction(OptSpecifier &Opt) {
2862 for (const auto &ActionOpt : getFrontendActionTable())
2863 if (ActionOpt.second == Opt.getID())
2864 return ActionOpt.first;
2865
2866 return std::nullopt;
2867}
2868
2869/// Maps frontend action to command line option.
2870static std::optional<OptSpecifier>
2871getProgramActionOpt(frontend::ActionKind ProgramAction) {
2872 for (const auto &ActionOpt : getFrontendActionTable())
2873 if (ActionOpt.first == ProgramAction)
2874 return OptSpecifier(ActionOpt.second);
2875
2876 return std::nullopt;
2877}
2878
2879static void GenerateFrontendArgs(const FrontendOptions &Opts,
2880 ArgumentConsumer Consumer, bool IsHeader) {
2881 const FrontendOptions &FrontendOpts = Opts;
2882#define FRONTEND_OPTION_WITH_MARSHALLING(...) \
2883 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
2884#include "clang/Options/Options.inc"
2885#undef FRONTEND_OPTION_WITH_MARSHALLING
2886
2887 std::optional<OptSpecifier> ProgramActionOpt =
2888 getProgramActionOpt(ProgramAction: Opts.ProgramAction);
2889
2890 // Generating a simple flag covers most frontend actions.
2891 std::function<void()> GenerateProgramAction = [&]() {
2892 GenerateArg(Consumer, OptSpecifier: *ProgramActionOpt);
2893 };
2894
2895 if (!ProgramActionOpt) {
2896 // PluginAction is the only program action handled separately.
2897 assert(Opts.ProgramAction == frontend::PluginAction &&
2898 "Frontend action without option.");
2899 GenerateProgramAction = [&]() {
2900 GenerateArg(Consumer, OptSpecifier: OPT_plugin, Value: Opts.ActionName);
2901 };
2902 }
2903
2904 // FIXME: Simplify the complex 'AST dump' command line.
2905 if (Opts.ProgramAction == frontend::ASTDump) {
2906 GenerateProgramAction = [&]() {
2907 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via
2908 // marshalling infrastructure.
2909
2910 if (Opts.ASTDumpFormat != ADOF_Default) {
2911 StringRef Format;
2912 switch (Opts.ASTDumpFormat) {
2913 case ADOF_Default:
2914 llvm_unreachable("Default AST dump format.");
2915 case ADOF_JSON:
2916 Format = "json";
2917 break;
2918 }
2919
2920 if (Opts.ASTDumpAll)
2921 GenerateArg(Consumer, OptSpecifier: OPT_ast_dump_all_EQ, Value: Format);
2922 if (Opts.ASTDumpDecls)
2923 GenerateArg(Consumer, OptSpecifier: OPT_ast_dump_EQ, Value: Format);
2924 } else {
2925 if (Opts.ASTDumpAll)
2926 GenerateArg(Consumer, OptSpecifier: OPT_ast_dump_all);
2927 if (Opts.ASTDumpDecls)
2928 GenerateArg(Consumer, OptSpecifier: OPT_ast_dump);
2929 }
2930 };
2931 }
2932
2933 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) {
2934 GenerateProgramAction = [&]() {
2935 GenerateArg(Consumer, OptSpecifier: OPT_fixit_EQ, Value: Opts.FixItSuffix);
2936 };
2937 }
2938
2939 GenerateProgramAction();
2940
2941 for (const auto &PluginArgs : Opts.PluginArgs) {
2942 Option Opt = getDriverOptTable().getOption(Opt: OPT_plugin_arg);
2943 for (const auto &PluginArg : PluginArgs.second)
2944 denormalizeString(Consumer,
2945 Spelling: Opt.getPrefix() + Opt.getName() + PluginArgs.first,
2946 OptClass: Opt.getKind(), TableIndex: 0, Value: PluginArg);
2947 }
2948
2949 for (const auto &Ext : Opts.ModuleFileExtensions)
2950 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Val: Ext.get()))
2951 GenerateArg(Consumer, OptSpecifier: OPT_ftest_module_file_extension_EQ, Value: TestExt->str());
2952
2953 if (!Opts.CodeCompletionAt.FileName.empty())
2954 GenerateArg(Consumer, OptSpecifier: OPT_code_completion_at,
2955 Value: Opts.CodeCompletionAt.ToString());
2956
2957 for (const auto &Plugin : Opts.Plugins)
2958 GenerateArg(Consumer, OptSpecifier: OPT_load, Value: Plugin);
2959
2960 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction.
2961
2962 for (const auto &ModuleFile : Opts.ModuleFiles)
2963 GenerateArg(Consumer, OptSpecifier: OPT_fmodule_file, Value: ModuleFile);
2964
2965 if (Opts.AuxTargetCPU)
2966 GenerateArg(Consumer, OptSpecifier: OPT_aux_target_cpu, Value: *Opts.AuxTargetCPU);
2967
2968 if (Opts.AuxTargetFeatures)
2969 for (const auto &Feature : *Opts.AuxTargetFeatures)
2970 GenerateArg(Consumer, OptSpecifier: OPT_aux_target_feature, Value: Feature);
2971
2972 {
2973 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : "";
2974 StringRef ModuleMap =
2975 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : "";
2976 StringRef HeaderUnit = "";
2977 switch (Opts.DashX.getHeaderUnitKind()) {
2978 case InputKind::HeaderUnit_None:
2979 break;
2980 case InputKind::HeaderUnit_User:
2981 HeaderUnit = "-user";
2982 break;
2983 case InputKind::HeaderUnit_System:
2984 HeaderUnit = "-system";
2985 break;
2986 case InputKind::HeaderUnit_Abs:
2987 HeaderUnit = "-header-unit";
2988 break;
2989 }
2990 StringRef Header = IsHeader ? "-header" : "";
2991
2992 StringRef Lang;
2993 switch (Opts.DashX.getLanguage()) {
2994 case Language::C:
2995 Lang = "c";
2996 break;
2997 case Language::OpenCL:
2998 Lang = "cl";
2999 break;
3000 case Language::OpenCLCXX:
3001 Lang = "clcpp";
3002 break;
3003 case Language::CUDA:
3004 Lang = "cuda";
3005 break;
3006 case Language::HIP:
3007 Lang = "hip";
3008 break;
3009 case Language::CXX:
3010 Lang = "c++";
3011 break;
3012 case Language::ObjC:
3013 Lang = "objective-c";
3014 break;
3015 case Language::ObjCXX:
3016 Lang = "objective-c++";
3017 break;
3018 case Language::Asm:
3019 Lang = "assembler-with-cpp";
3020 break;
3021 case Language::Unknown:
3022 assert(Opts.DashX.getFormat() == InputKind::Precompiled &&
3023 "Generating -x argument for unknown language (not precompiled).");
3024 Lang = "ast";
3025 break;
3026 case Language::LLVM_IR:
3027 Lang = "ir";
3028 break;
3029 case Language::HLSL:
3030 Lang = "hlsl";
3031 break;
3032 case Language::CIR:
3033 Lang = "cir";
3034 break;
3035 }
3036
3037 GenerateArg(Consumer, OptSpecifier: OPT_x,
3038 Value: Lang + HeaderUnit + Header + ModuleMap + Preprocessed);
3039 }
3040
3041 // OPT_INPUT has a unique class, generate it directly.
3042 for (const auto &Input : Opts.Inputs)
3043 Consumer(Input.getFile());
3044}
3045
3046static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
3047 DiagnosticsEngine &Diags, bool &IsHeaderFile) {
3048 unsigned NumErrorsBefore = Diags.getNumErrors();
3049
3050 FrontendOptions &FrontendOpts = Opts;
3051
3052#define FRONTEND_OPTION_WITH_MARSHALLING(...) \
3053 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
3054#include "clang/Options/Options.inc"
3055#undef FRONTEND_OPTION_WITH_MARSHALLING
3056
3057 Opts.ProgramAction = frontend::ParseSyntaxOnly;
3058 if (const Arg *A = Args.getLastArg(Ids: OPT_Action_Group)) {
3059 OptSpecifier Opt = OptSpecifier(A->getOption().getID());
3060 std::optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt);
3061 assert(ProgramAction && "Option specifier not in Action_Group.");
3062
3063 if (ProgramAction == frontend::ASTDump &&
3064 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) {
3065 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue())
3066 .CaseLower(S: "default", Value: ADOF_Default)
3067 .CaseLower(S: "json", Value: ADOF_JSON)
3068 .Default(Value: std::numeric_limits<unsigned>::max());
3069
3070 if (Val != std::numeric_limits<unsigned>::max())
3071 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val);
3072 else {
3073 Diags.Report(DiagID: diag::err_drv_invalid_value)
3074 << A->getAsString(Args) << A->getValue();
3075 Opts.ASTDumpFormat = ADOF_Default;
3076 }
3077 }
3078
3079 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ)
3080 Opts.FixItSuffix = A->getValue();
3081
3082 if (ProgramAction == frontend::GenerateInterfaceStubs) {
3083 StringRef ArgStr =
3084 Args.hasArg(Ids: OPT_interface_stub_version_EQ)
3085 ? Args.getLastArgValue(Id: OPT_interface_stub_version_EQ)
3086 : "ifs-v1";
3087 if (ArgStr == "experimental-yaml-elf-v1" ||
3088 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" ||
3089 ArgStr == "experimental-tapi-elf-v1") {
3090 std::string ErrorMessage =
3091 "Invalid interface stub format: " + ArgStr.str() +
3092 " is deprecated.";
3093 Diags.Report(DiagID: diag::err_drv_invalid_value)
3094 << "Must specify a valid interface stub format type, ie: "
3095 "-interface-stub-version=ifs-v1"
3096 << ErrorMessage;
3097 ProgramAction = frontend::ParseSyntaxOnly;
3098 } else if (!ArgStr.starts_with(Prefix: "ifs-")) {
3099 std::string ErrorMessage =
3100 "Invalid interface stub format: " + ArgStr.str() + ".";
3101 Diags.Report(DiagID: diag::err_drv_invalid_value)
3102 << "Must specify a valid interface stub format type, ie: "
3103 "-interface-stub-version=ifs-v1"
3104 << ErrorMessage;
3105 ProgramAction = frontend::ParseSyntaxOnly;
3106 }
3107 }
3108
3109 Opts.ProgramAction = *ProgramAction;
3110
3111 // Catch common mistakes when multiple actions are specified for cc1 (e.g.
3112 // -S -emit-llvm means -emit-llvm while -emit-llvm -S means -S). However, to
3113 // support driver `-c -Xclang ACTION` (-cc1 -emit-llvm file -main-file-name
3114 // X ACTION), we suppress the error when the two actions are separated by
3115 // -main-file-name.
3116 //
3117 // As an exception, accept composable -ast-dump*.
3118 if (!A->getSpelling().starts_with(Prefix: "-ast-dump")) {
3119 const Arg *SavedAction = nullptr;
3120 for (const Arg *AA :
3121 Args.filtered(Ids: OPT_Action_Group, Ids: OPT_main_file_name)) {
3122 if (AA->getOption().matches(ID: OPT_main_file_name)) {
3123 SavedAction = nullptr;
3124 } else if (!SavedAction) {
3125 SavedAction = AA;
3126 } else {
3127 if (!A->getOption().matches(ID: OPT_ast_dump_EQ))
3128 Diags.Report(DiagID: diag::err_fe_invalid_multiple_actions)
3129 << SavedAction->getSpelling() << A->getSpelling();
3130 break;
3131 }
3132 }
3133 }
3134 }
3135
3136 if (const Arg* A = Args.getLastArg(Ids: OPT_plugin)) {
3137 Opts.Plugins.emplace_back(args: A->getValue(N: 0));
3138 Opts.ProgramAction = frontend::PluginAction;
3139 Opts.ActionName = A->getValue();
3140 }
3141 for (const auto *AA : Args.filtered(Ids: OPT_plugin_arg))
3142 Opts.PluginArgs[AA->getValue(N: 0)].emplace_back(args: AA->getValue(N: 1));
3143
3144 for (const std::string &Arg :
3145 Args.getAllArgValues(Id: OPT_ftest_module_file_extension_EQ)) {
3146 std::string BlockName;
3147 unsigned MajorVersion;
3148 unsigned MinorVersion;
3149 bool Hashed;
3150 std::string UserInfo;
3151 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion,
3152 MinorVersion, Hashed, UserInfo)) {
3153 Diags.Report(DiagID: diag::err_test_module_file_extension_format) << Arg;
3154
3155 continue;
3156 }
3157
3158 // Add the testing module file extension.
3159 Opts.ModuleFileExtensions.push_back(
3160 x: std::make_shared<TestModuleFileExtension>(
3161 args&: BlockName, args&: MajorVersion, args&: MinorVersion, args&: Hashed, args&: UserInfo));
3162 }
3163
3164 if (const Arg *A = Args.getLastArg(Ids: OPT_code_completion_at)) {
3165 Opts.CodeCompletionAt =
3166 ParsedSourceLocation::FromString(Str: A->getValue());
3167 if (Opts.CodeCompletionAt.FileName.empty()) {
3168 Diags.Report(DiagID: diag::err_drv_invalid_value)
3169 << A->getAsString(Args) << A->getValue();
3170 Diags.Report(DiagID: diag::note_command_line_code_loc_requirement);
3171 }
3172 }
3173
3174 Opts.Plugins = Args.getAllArgValues(Id: OPT_load);
3175 Opts.ASTDumpDecls = Args.hasArg(Ids: OPT_ast_dump, Ids: OPT_ast_dump_EQ);
3176 Opts.ASTDumpAll = Args.hasArg(Ids: OPT_ast_dump_all, Ids: OPT_ast_dump_all_EQ);
3177 // Only the -fmodule-file=<file> form.
3178 for (const auto *A : Args.filtered(Ids: OPT_fmodule_file)) {
3179 StringRef Val = A->getValue();
3180 if (!Val.contains(C: '='))
3181 Opts.ModuleFiles.push_back(x: std::string(Val));
3182 }
3183
3184 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule)
3185 Diags.Report(DiagID: diag::err_drv_argument_only_allowed_with) << "-fsystem-module"
3186 << "-emit-module";
3187 if (Args.hasArg(Ids: OPT_emit_cir, Ids: OPT_emit_cir_bc))
3188 Opts.UseClangIRPipeline = true;
3189
3190#if CLANG_ENABLE_CIR
3191 if (Args.hasArg(OPT_clangir_disable_passes))
3192 Opts.ClangIRDisablePasses = true;
3193
3194 if (Args.hasArg(OPT_clangir_disable_verifier))
3195 Opts.ClangIRDisableCIRVerifier = true;
3196
3197 if (Args.hasArg(OPT_clangir_lib_opt) || Args.hasArg(OPT_clangir_lib_opt_EQ))
3198 Opts.ClangIRLibOptEnabled = true;
3199#endif // CLANG_ENABLE_CIR
3200
3201 if (Args.hasArg(Ids: OPT_aux_target_cpu))
3202 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(Id: OPT_aux_target_cpu));
3203 if (Args.hasArg(Ids: OPT_aux_target_feature))
3204 Opts.AuxTargetFeatures = Args.getAllArgValues(Id: OPT_aux_target_feature);
3205
3206 InputKind DashX(Language::Unknown);
3207 if (const Arg *A = Args.getLastArg(Ids: OPT_x)) {
3208 StringRef XValue = A->getValue();
3209
3210 // Parse suffixes:
3211 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'.
3212 // FIXME: Supporting '<lang>-header-cpp-output' would be useful.
3213 bool Preprocessed = XValue.consume_back(Suffix: "-cpp-output");
3214 bool ModuleMap = XValue.consume_back(Suffix: "-module-map");
3215 // Detect and consume the header indicator.
3216 bool IsHeader =
3217 XValue != "precompiled-header" && XValue.consume_back(Suffix: "-header");
3218
3219 // If we have c++-{user,system}-header, that indicates a header unit input
3220 // likewise, if the user put -fmodule-header together with a header with an
3221 // absolute path (header-unit-header).
3222 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None;
3223 if (IsHeader || Preprocessed) {
3224 if (XValue.consume_back(Suffix: "-header-unit"))
3225 HUK = InputKind::HeaderUnit_Abs;
3226 else if (XValue.consume_back(Suffix: "-system"))
3227 HUK = InputKind::HeaderUnit_System;
3228 else if (XValue.consume_back(Suffix: "-user"))
3229 HUK = InputKind::HeaderUnit_User;
3230 }
3231
3232 // The value set by this processing is an un-preprocessed source which is
3233 // not intended to be a module map or header unit.
3234 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap &&
3235 HUK == InputKind::HeaderUnit_None;
3236
3237 // Principal languages.
3238 DashX = llvm::StringSwitch<InputKind>(XValue)
3239 .Case(S: "c", Value: Language::C)
3240 .Case(S: "cl", Value: Language::OpenCL)
3241 .Case(S: "clcpp", Value: Language::OpenCLCXX)
3242 .Case(S: "cuda", Value: Language::CUDA)
3243 .Case(S: "hip", Value: Language::HIP)
3244 .Case(S: "c++", Value: Language::CXX)
3245 .Case(S: "objective-c", Value: Language::ObjC)
3246 .Case(S: "objective-c++", Value: Language::ObjCXX)
3247 .Case(S: "hlsl", Value: Language::HLSL)
3248 .Default(Value: Language::Unknown);
3249
3250 // "objc[++]-cpp-output" is an acceptable synonym for
3251 // "objective-c[++]-cpp-output".
3252 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap &&
3253 HUK == InputKind::HeaderUnit_None)
3254 DashX = llvm::StringSwitch<InputKind>(XValue)
3255 .Case(S: "objc", Value: Language::ObjC)
3256 .Case(S: "objc++", Value: Language::ObjCXX)
3257 .Default(Value: Language::Unknown);
3258
3259 // Some special cases cannot be combined with suffixes.
3260 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap &&
3261 HUK == InputKind::HeaderUnit_None)
3262 DashX = llvm::StringSwitch<InputKind>(XValue)
3263 .Case(S: "cpp-output", Value: InputKind(Language::C).getPreprocessed())
3264 .Case(S: "assembler-with-cpp", Value: Language::Asm)
3265 .Cases(CaseStrings: {"ast", "pcm", "precompiled-header"},
3266 Value: InputKind(Language::Unknown, InputKind::Precompiled))
3267 .Case(S: "ir", Value: Language::LLVM_IR)
3268 .Case(S: "cir", Value: Language::CIR)
3269 .Default(Value: Language::Unknown);
3270
3271 if (DashX.isUnknown())
3272 Diags.Report(DiagID: diag::err_drv_invalid_value)
3273 << A->getAsString(Args) << A->getValue();
3274
3275 if (Preprocessed)
3276 DashX = DashX.getPreprocessed();
3277 // A regular header is considered mutually exclusive with a header unit.
3278 if (HUK != InputKind::HeaderUnit_None) {
3279 DashX = DashX.withHeaderUnit(HU: HUK);
3280 IsHeaderFile = true;
3281 } else if (IsHeaderFile)
3282 DashX = DashX.getHeader();
3283 if (ModuleMap)
3284 DashX = DashX.withFormat(F: InputKind::ModuleMap);
3285 }
3286
3287 // '-' is the default input if none is given.
3288 std::vector<std::string> Inputs = Args.getAllArgValues(Id: OPT_INPUT);
3289 Opts.Inputs.clear();
3290 if (Inputs.empty())
3291 Inputs.push_back(x: "-");
3292
3293 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None &&
3294 Inputs.size() > 1)
3295 Diags.Report(DiagID: diag::err_drv_header_unit_extra_inputs) << Inputs[1];
3296
3297 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
3298 InputKind IK = DashX;
3299 if (IK.isUnknown()) {
3300 IK = FrontendOptions::getInputKindForExtension(
3301 Extension: StringRef(Inputs[i]).rsplit(Separator: '.').second);
3302 // FIXME: Warn on this?
3303 if (IK.isUnknown())
3304 IK = Language::C;
3305 // FIXME: Remove this hack.
3306 if (i == 0)
3307 DashX = IK;
3308 }
3309
3310 bool IsSystem = false;
3311
3312 // The -emit-module action implicitly takes a module map.
3313 if (Opts.ProgramAction == frontend::GenerateModule &&
3314 IK.getFormat() == InputKind::Source) {
3315 IK = IK.withFormat(F: InputKind::ModuleMap);
3316 IsSystem = Opts.IsSystemModule;
3317 }
3318
3319 Opts.Inputs.emplace_back(Args: std::move(Inputs[i]), Args&: IK, Args&: IsSystem);
3320 }
3321
3322 Opts.DashX = DashX;
3323
3324 // CIR is a source-level frontend pipeline. When the input is already LLVM IR
3325 // (e.g. during the backend phase of OpenMP offloading), the standard LLVM
3326 // backend should be used instead.
3327 if (Opts.UseClangIRPipeline && DashX.getLanguage() == Language::LLVM_IR)
3328 Opts.UseClangIRPipeline = false;
3329
3330 // Conversely, ClangIR input can only be consumed by the CIR pipeline, so it
3331 // implies -fclangir, and is an error if that pipeline is not built in.
3332 if (DashX.getLanguage() == Language::CIR) {
3333#if CLANG_ENABLE_CIR
3334 Opts.UseClangIRPipeline = true;
3335#else
3336 Diags.Report(DiagID: diag::err_fe_cir_not_built);
3337#endif
3338 }
3339
3340 return Diags.getNumErrors() == NumErrorsBefore;
3341}
3342
3343static void GenerateHeaderSearchArgs(const HeaderSearchOptions &Opts,
3344 ArgumentConsumer Consumer) {
3345 const HeaderSearchOptions *HeaderSearchOpts = &Opts;
3346#define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \
3347 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
3348#include "clang/Options/Options.inc"
3349#undef HEADER_SEARCH_OPTION_WITH_MARSHALLING
3350
3351 if (Opts.UseLibcxx)
3352 GenerateArg(Consumer, OptSpecifier: OPT_stdlib_EQ, Value: "libc++");
3353
3354 for (const auto &File : Opts.PrebuiltModuleFiles)
3355 GenerateArg(Consumer, OptSpecifier: OPT_fmodule_file, Value: File.first + "=" + File.second);
3356
3357 for (const auto &Path : Opts.PrebuiltModulePaths)
3358 GenerateArg(Consumer, OptSpecifier: OPT_fprebuilt_module_path, Value: Path);
3359
3360 for (const auto &Macro : Opts.ModulesIgnoreMacros)
3361 GenerateArg(Consumer, OptSpecifier: OPT_fmodules_ignore_macro, Value: Macro.val());
3362
3363 for (const auto &Path : Opts.ModulesIgnoreSearchPaths)
3364 GenerateArg(Consumer, OptSpecifier: OPT_fmodules_ignore_search_path, Value: Path.val());
3365
3366 auto Matches = [](const HeaderSearchOptions::Entry &Entry,
3367 llvm::ArrayRef<frontend::IncludeDirGroup> Groups,
3368 std::optional<bool> IsFramework,
3369 std::optional<bool> IgnoreSysRoot) {
3370 return llvm::is_contained(Range&: Groups, Element: Entry.Group) &&
3371 (!IsFramework || (Entry.IsFramework == *IsFramework)) &&
3372 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot));
3373 };
3374
3375 auto It = Opts.UserEntries.begin();
3376 auto End = Opts.UserEntries.end();
3377
3378 // Add -I... and -F... options in order.
3379 for (; It < End && Matches(*It, {frontend::Angled}, std::nullopt, true);
3380 ++It) {
3381 OptSpecifier Opt = [It, Matches]() {
3382 if (Matches(*It, frontend::Angled, true, true))
3383 return OPT_F;
3384 if (Matches(*It, frontend::Angled, false, true))
3385 return OPT_I;
3386 llvm_unreachable("Unexpected HeaderSearchOptions::Entry.");
3387 }();
3388
3389 GenerateArg(Consumer, OptSpecifier: Opt, Value: It->Path);
3390 }
3391
3392 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may
3393 // have already been generated as "-I[xx]yy". If that's the case, their
3394 // position on command line was such that this has no semantic impact on
3395 // include paths.
3396 for (; It < End &&
3397 Matches(*It, {frontend::After, frontend::Angled}, false, true);
3398 ++It) {
3399 OptSpecifier Opt =
3400 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore;
3401 GenerateArg(Consumer, OptSpecifier: Opt, Value: It->Path);
3402 }
3403
3404 // Note: Some paths that came from "-idirafter=xxyy" may have already been
3405 // generated as "-iwithprefix=xxyy". If that's the case, their position on
3406 // command line was such that this has no semantic impact on include paths.
3407 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It)
3408 GenerateArg(Consumer, OptSpecifier: OPT_idirafter, Value: It->Path);
3409 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It)
3410 GenerateArg(Consumer, OptSpecifier: OPT_iquote, Value: It->Path);
3411 for (; It < End && Matches(*It, {frontend::System}, false, std::nullopt);
3412 ++It)
3413 GenerateArg(Consumer, OptSpecifier: It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot,
3414 Value: It->Path);
3415 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It)
3416 GenerateArg(Consumer, OptSpecifier: OPT_iframework, Value: It->Path);
3417 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It)
3418 GenerateArg(Consumer, OptSpecifier: OPT_iframeworkwithsysroot, Value: It->Path);
3419
3420 // Add the paths for the various language specific isystem flags.
3421 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It)
3422 GenerateArg(Consumer, OptSpecifier: OPT_c_isystem, Value: It->Path);
3423 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It)
3424 GenerateArg(Consumer, OptSpecifier: OPT_cxx_isystem, Value: It->Path);
3425 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It)
3426 GenerateArg(Consumer, OptSpecifier: OPT_objc_isystem, Value: It->Path);
3427 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It)
3428 GenerateArg(Consumer, OptSpecifier: OPT_objcxx_isystem, Value: It->Path);
3429
3430 // Add the internal paths from a driver that detects standard include paths.
3431 // Note: Some paths that came from "-internal-isystem" arguments may have
3432 // already been generated as "-isystem". If that's the case, their position on
3433 // command line was such that this has no semantic impact on include paths.
3434 for (; It < End &&
3435 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true);
3436 ++It) {
3437 OptSpecifier Opt = It->Group == frontend::System
3438 ? OPT_internal_isystem
3439 : OPT_internal_externc_isystem;
3440 GenerateArg(Consumer, OptSpecifier: Opt, Value: It->Path);
3441 }
3442 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It)
3443 GenerateArg(Consumer, OptSpecifier: OPT_internal_iframework, Value: It->Path);
3444
3445 assert(It == End && "Unhandled HeaderSearchOption::Entry.");
3446
3447 // Add the path prefixes which are implicitly treated as being system headers.
3448 for (const auto &P : Opts.SystemHeaderPrefixes) {
3449 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix
3450 : OPT_no_system_header_prefix;
3451 GenerateArg(Consumer, OptSpecifier: Opt, Value: P.Prefix);
3452 }
3453
3454 for (const std::string &F : Opts.VFSOverlayFiles)
3455 GenerateArg(Consumer, OptSpecifier: OPT_ivfsoverlay, Value: F);
3456}
3457
3458static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args,
3459 DiagnosticsEngine &Diags) {
3460 unsigned NumErrorsBefore = Diags.getNumErrors();
3461
3462 HeaderSearchOptions *HeaderSearchOpts = &Opts;
3463
3464#define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \
3465 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
3466#include "clang/Options/Options.inc"
3467#undef HEADER_SEARCH_OPTION_WITH_MARSHALLING
3468
3469 if (const Arg *A = Args.getLastArg(Ids: OPT_stdlib_EQ))
3470 Opts.UseLibcxx = (strcmp(s1: A->getValue(), s2: "libc++") == 0);
3471
3472 // Only the -fmodule-file=<name>=<file> form.
3473 for (const auto *A : Args.filtered(Ids: OPT_fmodule_file)) {
3474 StringRef Val = A->getValue();
3475 if (Val.contains(C: '=')) {
3476 auto Split = Val.split(Separator: '=');
3477 Opts.PrebuiltModuleFiles.insert_or_assign(
3478 k: std::string(Split.first), obj: std::string(Split.second));
3479 }
3480 }
3481 for (const auto *A : Args.filtered(Ids: OPT_fprebuilt_module_path))
3482 Opts.AddPrebuiltModulePath(Name: A->getValue());
3483
3484 for (const auto *A : Args.filtered(Ids: OPT_fmodules_ignore_macro)) {
3485 StringRef MacroDef = A->getValue();
3486 Opts.ModulesIgnoreMacros.insert(
3487 X: llvm::CachedHashString(MacroDef.split(Separator: '=').first));
3488 }
3489
3490 for (const auto *A : Args.filtered(Ids: OPT_fmodules_ignore_search_path))
3491 Opts.ModulesIgnoreSearchPaths.insert(X: llvm::CachedHashString(A->getValue()));
3492
3493 // Add -I... and -F... options in order.
3494 bool IsSysrootSpecified =
3495 Args.hasArg(Ids: OPT__sysroot_EQ) || Args.hasArg(Ids: OPT_isysroot);
3496
3497 // Expand a leading `=` to the sysroot if one was passed (and it's not a
3498 // framework flag).
3499 auto PrefixHeaderPath = [IsSysrootSpecified,
3500 &Opts](const llvm::opt::Arg *A,
3501 bool IsFramework = false) -> std::string {
3502 assert(A->getNumValues() && "Unexpected empty search path flag!");
3503 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') {
3504 SmallString<32> Buffer;
3505 llvm::sys::path::append(path&: Buffer, a: Opts.Sysroot,
3506 b: llvm::StringRef(A->getValue()).substr(Start: 1));
3507 return std::string(Buffer);
3508 }
3509 return A->getValue();
3510 };
3511
3512 for (const auto *A : Args.filtered(Ids: OPT_I, Ids: OPT_F)) {
3513 bool IsFramework = A->getOption().matches(ID: OPT_F);
3514 Opts.AddPath(Path: PrefixHeaderPath(A, IsFramework), Group: frontend::Angled,
3515 IsFramework, /*IgnoreSysroot=*/IgnoreSysRoot: true);
3516 }
3517
3518 // Add -iprefix/-iwithprefix/-iwithprefixbefore options.
3519 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
3520 for (const auto *A :
3521 Args.filtered(Ids: OPT_iprefix, Ids: OPT_iwithprefix, Ids: OPT_iwithprefixbefore)) {
3522 if (A->getOption().matches(ID: OPT_iprefix))
3523 Prefix = A->getValue();
3524 else if (A->getOption().matches(ID: OPT_iwithprefix))
3525 Opts.AddPath(Path: Prefix.str() + A->getValue(), Group: frontend::After, IsFramework: false, IgnoreSysRoot: true);
3526 else
3527 Opts.AddPath(Path: Prefix.str() + A->getValue(), Group: frontend::Angled, IsFramework: false, IgnoreSysRoot: true);
3528 }
3529
3530 for (const auto *A : Args.filtered(Ids: OPT_idirafter))
3531 Opts.AddPath(Path: PrefixHeaderPath(A), Group: frontend::After, IsFramework: false, IgnoreSysRoot: true);
3532 for (const auto *A : Args.filtered(Ids: OPT_iquote))
3533 Opts.AddPath(Path: PrefixHeaderPath(A), Group: frontend::Quoted, IsFramework: false, IgnoreSysRoot: true);
3534
3535 for (const auto *A : Args.filtered(Ids: OPT_isystem, Ids: OPT_iwithsysroot)) {
3536 if (A->getOption().matches(ID: OPT_iwithsysroot)) {
3537 Opts.AddPath(Path: A->getValue(), Group: frontend::System, IsFramework: false,
3538 /*IgnoreSysRoot=*/false);
3539 continue;
3540 }
3541 Opts.AddPath(Path: PrefixHeaderPath(A), Group: frontend::System, IsFramework: false, IgnoreSysRoot: true);
3542 }
3543 for (const auto *A : Args.filtered(Ids: OPT_iframework))
3544 Opts.AddPath(Path: A->getValue(), Group: frontend::System, IsFramework: true, IgnoreSysRoot: true);
3545 for (const auto *A : Args.filtered(Ids: OPT_iframeworkwithsysroot))
3546 Opts.AddPath(Path: A->getValue(), Group: frontend::System, /*IsFramework=*/true,
3547 /*IgnoreSysRoot=*/false);
3548
3549 // Add the paths for the various language specific isystem flags.
3550 for (const auto *A : Args.filtered(Ids: OPT_c_isystem))
3551 Opts.AddPath(Path: A->getValue(), Group: frontend::CSystem, IsFramework: false, IgnoreSysRoot: true);
3552 for (const auto *A : Args.filtered(Ids: OPT_cxx_isystem))
3553 Opts.AddPath(Path: A->getValue(), Group: frontend::CXXSystem, IsFramework: false, IgnoreSysRoot: true);
3554 for (const auto *A : Args.filtered(Ids: OPT_objc_isystem))
3555 Opts.AddPath(Path: A->getValue(), Group: frontend::ObjCSystem, IsFramework: false,IgnoreSysRoot: true);
3556 for (const auto *A : Args.filtered(Ids: OPT_objcxx_isystem))
3557 Opts.AddPath(Path: A->getValue(), Group: frontend::ObjCXXSystem, IsFramework: false, IgnoreSysRoot: true);
3558
3559 // Add the internal paths from a driver that detects standard include paths.
3560 for (const auto *A :
3561 Args.filtered(Ids: OPT_internal_isystem, Ids: OPT_internal_externc_isystem)) {
3562 frontend::IncludeDirGroup Group = frontend::System;
3563 if (A->getOption().matches(ID: OPT_internal_externc_isystem))
3564 Group = frontend::ExternCSystem;
3565 Opts.AddPath(Path: A->getValue(), Group, IsFramework: false, IgnoreSysRoot: true);
3566 }
3567 for (const auto *A : Args.filtered(Ids: OPT_internal_iframework))
3568 Opts.AddPath(Path: A->getValue(), Group: frontend::System, IsFramework: true, IgnoreSysRoot: true);
3569
3570 // Add the path prefixes which are implicitly treated as being system headers.
3571 for (const auto *A :
3572 Args.filtered(Ids: OPT_system_header_prefix, Ids: OPT_no_system_header_prefix))
3573 Opts.AddSystemHeaderPrefix(
3574 Prefix: A->getValue(), IsSystemHeader: A->getOption().matches(ID: OPT_system_header_prefix));
3575
3576 for (const auto *A : Args.filtered(Ids: OPT_ivfsoverlay, Ids: OPT_vfsoverlay))
3577 Opts.AddVFSOverlayFile(Name: A->getValue());
3578
3579 return Diags.getNumErrors() == NumErrorsBefore;
3580}
3581
3582static void GenerateAPINotesArgs(const APINotesOptions &Opts,
3583 ArgumentConsumer Consumer) {
3584 if (!Opts.SwiftVersion.empty())
3585 GenerateArg(Consumer, OptSpecifier: OPT_fapinotes_swift_version,
3586 Value: Opts.SwiftVersion.getAsString());
3587
3588 for (const auto &Path : Opts.ModuleSearchPaths)
3589 GenerateArg(Consumer, OptSpecifier: OPT_iapinotes_modules, Value: Path);
3590}
3591
3592static void ParseAPINotesArgs(APINotesOptions &Opts, ArgList &Args,
3593 DiagnosticsEngine &diags) {
3594 if (const Arg *A = Args.getLastArg(Ids: OPT_fapinotes_swift_version)) {
3595 if (Opts.SwiftVersion.tryParse(string: A->getValue()))
3596 diags.Report(DiagID: diag::err_drv_invalid_value)
3597 << A->getAsString(Args) << A->getValue();
3598 }
3599 for (const Arg *A : Args.filtered(Ids: OPT_iapinotes_modules))
3600 Opts.ModuleSearchPaths.push_back(x: A->getValue());
3601}
3602
3603static void GeneratePointerAuthArgs(const LangOptions &Opts,
3604 ArgumentConsumer Consumer) {
3605 if (Opts.PointerAuthIntrinsics)
3606 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_intrinsics);
3607 if (Opts.PointerAuthCalls)
3608 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_calls);
3609 if (Opts.PointerAuthReturns)
3610 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_returns);
3611 if (Opts.PointerAuthIndirectGotos)
3612 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_indirect_gotos);
3613 if (Opts.PointerAuthAuthTraps)
3614 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_auth_traps);
3615 if (Opts.PointerAuthVTPtrAddressDiscrimination)
3616 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_vtable_pointer_address_discrimination);
3617 if (Opts.PointerAuthVTPtrTypeDiscrimination)
3618 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_vtable_pointer_type_discrimination);
3619 if (Opts.PointerAuthVTTVTPtrDiscrimination)
3620 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_vtt_vtable_pointer_discrimination);
3621 if (Opts.PointerAuthTypeInfoVTPtrDiscrimination)
3622 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_type_info_vtable_pointer_discrimination);
3623 if (Opts.PointerAuthFunctionTypeDiscrimination)
3624 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_function_pointer_type_discrimination);
3625 if (Opts.PointerAuthInitFini)
3626 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_init_fini);
3627 if (Opts.PointerAuthInitFiniAddressDiscrimination)
3628 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_init_fini_address_discrimination);
3629 if (Opts.PointerAuthELFGOT)
3630 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_elf_got);
3631 if (Opts.AArch64JumpTableHardening)
3632 GenerateArg(Consumer, OptSpecifier: OPT_faarch64_jump_table_hardening);
3633 if (Opts.PointerAuthObjcIsa)
3634 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_objc_isa);
3635 if (Opts.PointerAuthObjcInterfaceSel)
3636 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_objc_interface_sel);
3637 if (Opts.PointerAuthObjcClassROPointers)
3638 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_objc_class_ro);
3639 if (Opts.PointerAuthBlockDescriptorPointers)
3640 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_block_descriptor_pointers);
3641}
3642
3643static void ParsePointerAuthArgs(LangOptions &Opts, ArgList &Args,
3644 DiagnosticsEngine &Diags) {
3645 Opts.PointerAuthIntrinsics = Args.hasArg(Ids: OPT_fptrauth_intrinsics);
3646 Opts.PointerAuthCalls = Args.hasArg(Ids: OPT_fptrauth_calls);
3647 Opts.PointerAuthReturns = Args.hasArg(Ids: OPT_fptrauth_returns);
3648 Opts.PointerAuthIndirectGotos = Args.hasArg(Ids: OPT_fptrauth_indirect_gotos);
3649 Opts.PointerAuthAuthTraps = Args.hasArg(Ids: OPT_fptrauth_auth_traps);
3650 Opts.PointerAuthVTPtrAddressDiscrimination =
3651 Args.hasArg(Ids: OPT_fptrauth_vtable_pointer_address_discrimination);
3652 Opts.PointerAuthVTPtrTypeDiscrimination =
3653 Args.hasArg(Ids: OPT_fptrauth_vtable_pointer_type_discrimination);
3654 Opts.PointerAuthVTTVTPtrDiscrimination =
3655 Args.hasArg(Ids: OPT_fptrauth_vtt_vtable_pointer_discrimination);
3656 Opts.PointerAuthTypeInfoVTPtrDiscrimination =
3657 Args.hasArg(Ids: OPT_fptrauth_type_info_vtable_pointer_discrimination);
3658 Opts.PointerAuthFunctionTypeDiscrimination =
3659 Args.hasArg(Ids: OPT_fptrauth_function_pointer_type_discrimination);
3660 Opts.PointerAuthInitFini = Args.hasArg(Ids: OPT_fptrauth_init_fini);
3661 Opts.PointerAuthInitFiniAddressDiscrimination =
3662 Args.hasArg(Ids: OPT_fptrauth_init_fini_address_discrimination);
3663 Opts.PointerAuthELFGOT = Args.hasArg(Ids: OPT_fptrauth_elf_got);
3664 Opts.AArch64JumpTableHardening =
3665 Args.hasArg(Ids: OPT_faarch64_jump_table_hardening);
3666 Opts.PointerAuthBlockDescriptorPointers =
3667 Args.hasArg(Ids: OPT_fptrauth_block_descriptor_pointers);
3668 Opts.PointerAuthObjcIsa = Args.hasArg(Ids: OPT_fptrauth_objc_isa);
3669 Opts.PointerAuthObjcClassROPointers = Args.hasArg(Ids: OPT_fptrauth_objc_class_ro);
3670 Opts.PointerAuthObjcInterfaceSel =
3671 Args.hasArg(Ids: OPT_fptrauth_objc_interface_sel);
3672
3673 if (Opts.PointerAuthObjcInterfaceSel)
3674 Opts.PointerAuthObjcInterfaceSelKey =
3675 static_cast<unsigned>(PointerAuthSchema::ARM8_3Key::ASDB);
3676}
3677
3678/// Check if input file kind and language standard are compatible.
3679static bool IsInputCompatibleWithStandard(InputKind IK,
3680 const LangStandard &S) {
3681 switch (IK.getLanguage()) {
3682 case Language::Unknown:
3683 case Language::LLVM_IR:
3684 case Language::CIR:
3685 llvm_unreachable("should not parse language flags for this input");
3686
3687 case Language::C:
3688 case Language::ObjC:
3689 return S.getLanguage() == Language::C;
3690
3691 case Language::OpenCL:
3692 return S.getLanguage() == Language::OpenCL ||
3693 S.getLanguage() == Language::OpenCLCXX;
3694
3695 case Language::OpenCLCXX:
3696 return S.getLanguage() == Language::OpenCLCXX;
3697
3698 case Language::CXX:
3699 case Language::ObjCXX:
3700 return S.getLanguage() == Language::CXX;
3701
3702 case Language::CUDA:
3703 // FIXME: What -std= values should be permitted for CUDA compilations?
3704 return S.getLanguage() == Language::CUDA ||
3705 S.getLanguage() == Language::CXX;
3706
3707 case Language::HIP:
3708 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP;
3709
3710 case Language::Asm:
3711 // Accept (and ignore) all -std= values.
3712 // FIXME: The -std= value is not ignored; it affects the tokenization
3713 // and preprocessing rules if we're preprocessing this asm input.
3714 return true;
3715
3716 case Language::HLSL:
3717 return S.getLanguage() == Language::HLSL;
3718 }
3719
3720 llvm_unreachable("unexpected input language");
3721}
3722
3723/// Get language name for given input kind.
3724static StringRef GetInputKindName(InputKind IK) {
3725 switch (IK.getLanguage()) {
3726 case Language::C:
3727 return "C";
3728 case Language::ObjC:
3729 return "Objective-C";
3730 case Language::CXX:
3731 return "C++";
3732 case Language::ObjCXX:
3733 return "Objective-C++";
3734 case Language::OpenCL:
3735 return "OpenCL";
3736 case Language::OpenCLCXX:
3737 return "C++ for OpenCL";
3738 case Language::CUDA:
3739 return "CUDA";
3740 case Language::HIP:
3741 return "HIP";
3742
3743 case Language::Asm:
3744 return "Asm";
3745 case Language::LLVM_IR:
3746 return "LLVM IR";
3747 case Language::CIR:
3748 return "Clang IR";
3749
3750 case Language::HLSL:
3751 return "HLSL";
3752
3753 case Language::Unknown:
3754 break;
3755 }
3756 llvm_unreachable("unknown input language");
3757}
3758
3759void CompilerInvocationBase::GenerateLangArgs(const LangOptions &Opts,
3760 ArgumentConsumer Consumer,
3761 const llvm::Triple &T,
3762 InputKind IK) {
3763 if (IK.getFormat() == InputKind::Precompiled ||
3764 IK.getLanguage() == Language::LLVM_IR ||
3765 IK.getLanguage() == Language::CIR) {
3766 if (Opts.ObjCAutoRefCount)
3767 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_arc);
3768 if (Opts.PICLevel != 0)
3769 GenerateArg(Consumer, OptSpecifier: OPT_pic_level, Value: Twine(Opts.PICLevel));
3770 if (Opts.PIE)
3771 GenerateArg(Consumer, OptSpecifier: OPT_pic_is_pie);
3772 for (StringRef Sanitizer : serializeSanitizerKinds(S: Opts.Sanitize))
3773 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_EQ, Value: Sanitizer);
3774 for (StringRef Sanitizer :
3775 serializeSanitizerKinds(S: Opts.UBSanFeatureIgnoredSanitize))
3776 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_ignore_for_ubsan_feature_EQ,
3777 Value: Sanitizer);
3778
3779 return;
3780 }
3781
3782 OptSpecifier StdOpt;
3783 switch (Opts.LangStd) {
3784 case LangStandard::lang_opencl10:
3785 case LangStandard::lang_opencl11:
3786 case LangStandard::lang_opencl12:
3787 case LangStandard::lang_opencl20:
3788 case LangStandard::lang_opencl30:
3789 case LangStandard::lang_openclcpp10:
3790 case LangStandard::lang_openclcpp2021:
3791 StdOpt = OPT_cl_std_EQ;
3792 break;
3793 default:
3794 StdOpt = OPT_std_EQ;
3795 break;
3796 }
3797
3798 auto LangStandard = LangStandard::getLangStandardForKind(K: Opts.LangStd);
3799 GenerateArg(Consumer, OptSpecifier: StdOpt, Value: LangStandard.getName());
3800
3801 if (Opts.IncludeDefaultHeader)
3802 GenerateArg(Consumer, OptSpecifier: OPT_finclude_default_header);
3803 if (Opts.DeclareOpenCLBuiltins)
3804 GenerateArg(Consumer, OptSpecifier: OPT_fdeclare_opencl_builtins);
3805
3806 const LangOptions *LangOpts = &Opts;
3807
3808#define LANG_OPTION_WITH_MARSHALLING(...) \
3809 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
3810#include "clang/Options/Options.inc"
3811#undef LANG_OPTION_WITH_MARSHALLING
3812
3813 // The '-fcf-protection=' option is generated by CodeGenOpts generator.
3814
3815 if (Opts.ObjC) {
3816 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_runtime_EQ, Value: Opts.ObjCRuntime.getAsString());
3817
3818 if (Opts.GC == LangOptions::GCOnly)
3819 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_gc_only);
3820 else if (Opts.GC == LangOptions::HybridGC)
3821 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_gc);
3822 else if (Opts.ObjCAutoRefCount == 1)
3823 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_arc);
3824
3825 if (Opts.ObjCWeakRuntime)
3826 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_runtime_has_weak);
3827
3828 if (Opts.ObjCWeak)
3829 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_weak);
3830
3831 if (Opts.ObjCSubscriptingLegacyRuntime)
3832 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_subscripting_legacy_runtime);
3833 }
3834
3835 if (Opts.GNUCVersion != 0) {
3836 unsigned Major = Opts.GNUCVersion / 100 / 100;
3837 unsigned Minor = (Opts.GNUCVersion / 100) % 100;
3838 unsigned Patch = Opts.GNUCVersion % 100;
3839 GenerateArg(Consumer, OptSpecifier: OPT_fgnuc_version_EQ,
3840 Value: Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch));
3841 }
3842
3843 if (Opts.IgnoreXCOFFVisibility)
3844 GenerateArg(Consumer, OptSpecifier: OPT_mignore_xcoff_visibility);
3845
3846 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) {
3847 GenerateArg(Consumer, OptSpecifier: OPT_ftrapv);
3848 GenerateArg(Consumer, OptSpecifier: OPT_ftrapv_handler, Value: Opts.OverflowHandler);
3849 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) {
3850 if (!Opts.MSVCCompat)
3851 GenerateArg(Consumer, OptSpecifier: OPT_fwrapv);
3852 } else if (Opts.MSVCCompat) {
3853 GenerateArg(Consumer, OptSpecifier: OPT_fno_wrapv);
3854 }
3855 if (Opts.PointerOverflowDefined)
3856 GenerateArg(Consumer, OptSpecifier: OPT_fwrapv_pointer);
3857
3858 if (Opts.MSCompatibilityVersion != 0) {
3859 unsigned Major = Opts.MSCompatibilityVersion / 10000000;
3860 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100;
3861 unsigned Subminor = Opts.MSCompatibilityVersion % 100000;
3862 GenerateArg(Consumer, OptSpecifier: OPT_fms_compatibility_version,
3863 Value: Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor));
3864 }
3865
3866 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) ||
3867 T.isOSzOS()) {
3868 if (!Opts.Trigraphs)
3869 GenerateArg(Consumer, OptSpecifier: OPT_fno_trigraphs);
3870 } else {
3871 if (Opts.Trigraphs)
3872 GenerateArg(Consumer, OptSpecifier: OPT_ftrigraphs);
3873 }
3874
3875 if (T.isOSzOS() && !Opts.ZOSExt)
3876 GenerateArg(Consumer, OptSpecifier: OPT_fno_zos_extensions);
3877 else if (Opts.ZOSExt)
3878 GenerateArg(Consumer, OptSpecifier: OPT_fzos_extensions);
3879
3880 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200))
3881 GenerateArg(Consumer, OptSpecifier: OPT_fblocks);
3882
3883 if (Opts.ConvergentFunctions)
3884 GenerateArg(Consumer, OptSpecifier: OPT_fconvergent_functions);
3885 else
3886 GenerateArg(Consumer, OptSpecifier: OPT_fno_convergent_functions);
3887
3888 if (Opts.NoBuiltin && !Opts.Freestanding)
3889 GenerateArg(Consumer, OptSpecifier: OPT_fno_builtin);
3890
3891 if (!Opts.NoBuiltin)
3892 for (const auto &Func : Opts.NoBuiltinFuncs)
3893 GenerateArg(Consumer, OptSpecifier: OPT_fno_builtin_, Value: Func);
3894
3895 if (Opts.LongDoubleSize == 128)
3896 GenerateArg(Consumer, OptSpecifier: OPT_mlong_double_128);
3897 else if (Opts.LongDoubleSize == 64)
3898 GenerateArg(Consumer, OptSpecifier: OPT_mlong_double_64);
3899 else if (Opts.LongDoubleSize == 80)
3900 GenerateArg(Consumer, OptSpecifier: OPT_mlong_double_80);
3901
3902 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='.
3903
3904 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or
3905 // '-fopenmp-targets='.
3906 if (Opts.OpenMP && !Opts.OpenMPSimd) {
3907 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp);
3908
3909 if (Opts.OpenMP != 51)
3910 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_version_EQ, Value: Twine(Opts.OpenMP));
3911
3912 if (!Opts.OpenMPUseTLS)
3913 GenerateArg(Consumer, OptSpecifier: OPT_fnoopenmp_use_tls);
3914
3915 if (Opts.OpenMPIsTargetDevice)
3916 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_is_target_device);
3917
3918 if (Opts.OpenMPIRBuilder)
3919 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_enable_irbuilder);
3920 }
3921
3922 if (Opts.OpenMPSimd) {
3923 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_simd);
3924
3925 if (Opts.OpenMP != 51)
3926 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_version_EQ, Value: Twine(Opts.OpenMP));
3927 }
3928
3929 if (Opts.OpenMPThreadSubscription)
3930 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_assume_threads_oversubscription);
3931
3932 if (Opts.OpenMPTeamSubscription)
3933 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_assume_teams_oversubscription);
3934
3935 if (Opts.OpenMPTargetDebug != 0)
3936 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_target_debug_EQ,
3937 Value: Twine(Opts.OpenMPTargetDebug));
3938
3939 if (Opts.OpenMPCUDANumSMs != 0)
3940 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_cuda_number_of_sm_EQ,
3941 Value: Twine(Opts.OpenMPCUDANumSMs));
3942
3943 if (Opts.OpenMPCUDABlocksPerSM != 0)
3944 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_cuda_blocks_per_sm_EQ,
3945 Value: Twine(Opts.OpenMPCUDABlocksPerSM));
3946
3947 if (!Opts.OMPTargetTriples.empty()) {
3948 std::string Targets;
3949 llvm::raw_string_ostream OS(Targets);
3950 llvm::interleave(
3951 c: Opts.OMPTargetTriples, os&: OS,
3952 each_fn: [&OS](const llvm::Triple &T) { OS << T.str(); }, separator: ",");
3953 GenerateArg(Consumer, OptSpecifier: OPT_offload_targets_EQ, Value: Targets);
3954 }
3955
3956 if (Opts.OpenMPCUDAMode)
3957 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_cuda_mode);
3958
3959 if (Opts.OpenACC)
3960 GenerateArg(Consumer, OptSpecifier: OPT_fopenacc);
3961
3962 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are
3963 // generated from CodeGenOptions.
3964
3965 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast)
3966 GenerateArg(Consumer, OptSpecifier: OPT_ffp_contract, Value: "fast");
3967 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On)
3968 GenerateArg(Consumer, OptSpecifier: OPT_ffp_contract, Value: "on");
3969 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off)
3970 GenerateArg(Consumer, OptSpecifier: OPT_ffp_contract, Value: "off");
3971 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas)
3972 GenerateArg(Consumer, OptSpecifier: OPT_ffp_contract, Value: "fast-honor-pragmas");
3973
3974 for (StringRef Sanitizer : serializeSanitizerKinds(S: Opts.Sanitize))
3975 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_EQ, Value: Sanitizer);
3976 for (StringRef Sanitizer :
3977 serializeSanitizerKinds(S: Opts.UBSanFeatureIgnoredSanitize))
3978 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_ignore_for_ubsan_feature_EQ, Value: Sanitizer);
3979
3980 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'.
3981 for (const std::string &F : Opts.NoSanitizeFiles)
3982 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_ignorelist_EQ, Value: F);
3983
3984 switch (Opts.getClangABICompat()) {
3985#define ABI_VER_MAJOR_MINOR(Major, Minor) \
3986 case LangOptions::ClangABI::Ver##Major##_##Minor: \
3987 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, #Major "." #Minor); \
3988 break;
3989#define ABI_VER_MAJOR(Major) \
3990 case LangOptions::ClangABI::Ver##Major: \
3991 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, #Major ".0"); \
3992 break;
3993#define ABI_VER_LATEST(Latest) \
3994 case LangOptions::ClangABI::Latest: \
3995 break;
3996#include "clang/Basic/ABIVersions.def"
3997 }
3998
3999 if (Opts.getSignReturnAddressScope() ==
4000 LangOptions::SignReturnAddressScopeKind::All)
4001 GenerateArg(Consumer, OptSpecifier: OPT_msign_return_address_EQ, Value: "all");
4002 else if (Opts.getSignReturnAddressScope() ==
4003 LangOptions::SignReturnAddressScopeKind::NonLeaf)
4004 GenerateArg(Consumer, OptSpecifier: OPT_msign_return_address_EQ, Value: "non-leaf");
4005
4006 if (Opts.getSignReturnAddressKey() ==
4007 LangOptions::SignReturnAddressKeyKind::BKey)
4008 GenerateArg(Consumer, OptSpecifier: OPT_msign_return_address_key_EQ, Value: "b_key");
4009
4010 if (Opts.CXXABI)
4011 GenerateArg(Consumer, OptSpecifier: OPT_fcxx_abi_EQ,
4012 Value: TargetCXXABI::getSpelling(ABIKind: *Opts.CXXABI));
4013
4014 if (Opts.RelativeCXXABIVTables)
4015 GenerateArg(Consumer, OptSpecifier: OPT_fexperimental_relative_cxx_abi_vtables);
4016 else
4017 GenerateArg(Consumer, OptSpecifier: OPT_fno_experimental_relative_cxx_abi_vtables);
4018
4019 if (Opts.UseTargetPathSeparator)
4020 GenerateArg(Consumer, OptSpecifier: OPT_ffile_reproducible);
4021 else
4022 GenerateArg(Consumer, OptSpecifier: OPT_fno_file_reproducible);
4023
4024 for (const auto &MP : Opts.MacroPrefixMap)
4025 GenerateArg(Consumer, OptSpecifier: OPT_fmacro_prefix_map_EQ, Value: MP.first + "=" + MP.second);
4026
4027 if (!Opts.RandstructSeed.empty())
4028 GenerateArg(Consumer, OptSpecifier: OPT_frandomize_layout_seed_EQ, Value: Opts.RandstructSeed);
4029
4030 if (Opts.AllocTokenMax)
4031 GenerateArg(Consumer, OptSpecifier: OPT_falloc_token_max_EQ,
4032 Value: std::to_string(val: *Opts.AllocTokenMax));
4033
4034 if (Opts.AllocTokenMode) {
4035 StringRef S = llvm::getAllocTokenModeAsString(Mode: *Opts.AllocTokenMode);
4036 GenerateArg(Consumer, OptSpecifier: OPT_falloc_token_mode_EQ, Value: S);
4037 }
4038 // Generate args for matrix types.
4039 if (Opts.MatrixTypes) {
4040 if (Opts.getDefaultMatrixMemoryLayout() ==
4041 LangOptions::MatrixMemoryLayout::MatrixColMajor)
4042 GenerateArg(Consumer, OptSpecifier: OPT_fmatrix_memory_layout_EQ, Value: "column-major");
4043 if (Opts.getDefaultMatrixMemoryLayout() ==
4044 LangOptions::MatrixMemoryLayout::MatrixRowMajor)
4045 GenerateArg(Consumer, OptSpecifier: OPT_fmatrix_memory_layout_EQ, Value: "row-major");
4046 }
4047}
4048
4049bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args,
4050 InputKind IK, const llvm::Triple &T,
4051 std::vector<std::string> &Includes,
4052 DiagnosticsEngine &Diags) {
4053 unsigned NumErrorsBefore = Diags.getNumErrors();
4054
4055 if (IK.getFormat() == InputKind::Precompiled ||
4056 IK.getLanguage() == Language::LLVM_IR ||
4057 IK.getLanguage() == Language::CIR) {
4058 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the
4059 // PassManager in BackendUtil.cpp. They need to be initialized no matter
4060 // what the input type is.
4061 if (Args.hasArg(Ids: OPT_fobjc_arc))
4062 Opts.ObjCAutoRefCount = 1;
4063 // PICLevel and PIELevel are needed during code generation and this should
4064 // be set regardless of the input type.
4065 Opts.PICLevel = getLastArgIntValue(Args, Id: OPT_pic_level, Default: 0, Diags);
4066 Opts.PIE = Args.hasArg(Ids: OPT_pic_is_pie);
4067 parseSanitizerKinds(FlagName: "-fsanitize=", Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_EQ),
4068 Diags, S&: Opts.Sanitize);
4069 parseSanitizerKinds(
4070 FlagName: "-fsanitize-ignore-for-ubsan-feature=",
4071 Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_ignore_for_ubsan_feature_EQ), Diags,
4072 S&: Opts.UBSanFeatureIgnoredSanitize);
4073
4074 return Diags.getNumErrors() == NumErrorsBefore;
4075 }
4076
4077 // Other LangOpts are only initialized when the input is not AST or LLVM IR.
4078 // FIXME: Should we really be parsing this for an Language::Asm input?
4079
4080 // FIXME: Cleanup per-file based stuff.
4081 LangStandard::Kind LangStd = LangStandard::lang_unspecified;
4082 if (const Arg *A = Args.getLastArg(Ids: OPT_std_EQ)) {
4083 LangStd = LangStandard::getLangKind(Name: A->getValue());
4084 if (LangStd == LangStandard::lang_unspecified) {
4085 Diags.Report(DiagID: diag::err_drv_invalid_value)
4086 << A->getAsString(Args) << A->getValue();
4087 // Report supported standards with short description.
4088 for (unsigned KindValue = 0;
4089 KindValue != LangStandard::lang_unspecified;
4090 ++KindValue) {
4091 const LangStandard &Std = LangStandard::getLangStandardForKind(
4092 K: static_cast<LangStandard::Kind>(KindValue));
4093 if (IsInputCompatibleWithStandard(IK, S: Std)) {
4094 auto Diag = Diags.Report(DiagID: diag::note_drv_use_standard);
4095 Diag << Std.getName() << Std.getDescription();
4096 unsigned NumAliases = 0;
4097#define LANGSTANDARD(id, name, lang, desc, features, version)
4098#define LANGSTANDARD_ALIAS(id, alias) \
4099 if (KindValue == LangStandard::lang_##id) ++NumAliases;
4100#define LANGSTANDARD_ALIAS_DEPR(id, alias)
4101#include "clang/Basic/LangStandards.def"
4102 Diag << NumAliases;
4103#define LANGSTANDARD(id, name, lang, desc, features, version)
4104#define LANGSTANDARD_ALIAS(id, alias) \
4105 if (KindValue == LangStandard::lang_##id) Diag << alias;
4106#define LANGSTANDARD_ALIAS_DEPR(id, alias)
4107#include "clang/Basic/LangStandards.def"
4108 }
4109 }
4110 } else {
4111 // Valid standard, check to make sure language and standard are
4112 // compatible.
4113 const LangStandard &Std = LangStandard::getLangStandardForKind(K: LangStd);
4114 if (!IsInputCompatibleWithStandard(IK, S: Std)) {
4115 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
4116 << A->getAsString(Args) << GetInputKindName(IK);
4117 }
4118 }
4119 }
4120
4121 // -cl-std only applies for OpenCL language standards.
4122 // Override the -std option in this case.
4123 if (const Arg *A = Args.getLastArg(Ids: OPT_cl_std_EQ)) {
4124 LangStandard::Kind OpenCLLangStd =
4125 llvm::StringSwitch<LangStandard::Kind>(A->getValue())
4126 .Cases(CaseStrings: {"cl", "CL"}, Value: LangStandard::lang_opencl10)
4127 .Cases(CaseStrings: {"cl1.0", "CL1.0"}, Value: LangStandard::lang_opencl10)
4128 .Cases(CaseStrings: {"cl1.1", "CL1.1"}, Value: LangStandard::lang_opencl11)
4129 .Cases(CaseStrings: {"cl1.2", "CL1.2"}, Value: LangStandard::lang_opencl12)
4130 .Cases(CaseStrings: {"cl2.0", "CL2.0"}, Value: LangStandard::lang_opencl20)
4131 .Cases(CaseStrings: {"cl3.0", "CL3.0"}, Value: LangStandard::lang_opencl30)
4132 .Cases(CaseStrings: {"cl3.1", "CL3.1"}, Value: LangStandard::lang_opencl31)
4133 .Cases(CaseStrings: {"clc++", "CLC++"}, Value: LangStandard::lang_openclcpp10)
4134 .Cases(CaseStrings: {"clc++1.0", "CLC++1.0"}, Value: LangStandard::lang_openclcpp10)
4135 .Cases(CaseStrings: {"clc++2021", "CLC++2021"}, Value: LangStandard::lang_openclcpp2021)
4136 .Default(Value: LangStandard::lang_unspecified);
4137
4138 if (OpenCLLangStd == LangStandard::lang_unspecified) {
4139 Diags.Report(DiagID: diag::err_drv_invalid_value)
4140 << A->getAsString(Args) << A->getValue();
4141 }
4142 else
4143 LangStd = OpenCLLangStd;
4144 }
4145
4146 // These need to be parsed now. They are used to set OpenCL defaults.
4147 Opts.IncludeDefaultHeader = Args.hasArg(Ids: OPT_finclude_default_header);
4148 Opts.DeclareOpenCLBuiltins = Args.hasArg(Ids: OPT_fdeclare_opencl_builtins);
4149
4150 LangOptions::setLangDefaults(Opts, Lang: IK.getLanguage(), T, Includes, LangStd);
4151
4152 // The key paths of codegen options defined in Options.td start with
4153 // "LangOpts->". Let's provide the expected variable name and type.
4154 LangOptions *LangOpts = &Opts;
4155
4156#define LANG_OPTION_WITH_MARSHALLING(...) \
4157 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
4158#include "clang/Options/Options.inc"
4159#undef LANG_OPTION_WITH_MARSHALLING
4160
4161 // "Modules semantics" (e.g. cross-translation-unit declaration merging) are
4162 // needed for both Clang (header) modules and C++20 modules, so enable them
4163 // for either.
4164 Opts.Modules = Opts.ClangModules || Opts.CPlusPlusModules;
4165
4166 if (const Arg *A = Args.getLastArg(Ids: OPT_fcf_protection_EQ)) {
4167 StringRef Name = A->getValue();
4168 if (Name == "full") {
4169 Opts.CFProtectionBranch = 1;
4170 Opts.CFProtectionReturn = 1;
4171 } else if (Name == "branch") {
4172 Opts.CFProtectionBranch = 1;
4173 } else if (Name == "return") {
4174 Opts.CFProtectionReturn = 1;
4175 }
4176 }
4177
4178 if (Opts.CFProtectionBranch) {
4179 if (const Arg *A = Args.getLastArg(Ids: OPT_mcf_branch_label_scheme_EQ)) {
4180 const auto Scheme =
4181 llvm::StringSwitch<CFBranchLabelSchemeKind>(A->getValue())
4182#define CF_BRANCH_LABEL_SCHEME(Kind, FlagVal) \
4183 .Case(#FlagVal, CFBranchLabelSchemeKind::Kind)
4184#include "clang/Basic/CFProtectionOptions.def"
4185 .Default(Value: CFBranchLabelSchemeKind::Default);
4186 Opts.setCFBranchLabelScheme(Scheme);
4187 }
4188 }
4189
4190 if ((Args.hasArg(Ids: OPT_fsycl_is_device) || Args.hasArg(Ids: OPT_fsycl_is_host)) &&
4191 !Args.hasArg(Ids: OPT_sycl_std_EQ)) {
4192 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to
4193 // provide -sycl-std=, we want to default it to whatever the default SYCL
4194 // version is. I could not find a way to express this with the options
4195 // tablegen because we still want this value to be SYCL_None when the user
4196 // is not in device or host mode.
4197 Opts.setSYCLVersion(LangOptions::SYCL_Default);
4198 }
4199
4200 if (Opts.ObjC) {
4201 if (Arg *arg = Args.getLastArg(Ids: OPT_fobjc_runtime_EQ)) {
4202 StringRef value = arg->getValue();
4203 if (Opts.ObjCRuntime.tryParse(input: value))
4204 Diags.Report(DiagID: diag::err_drv_unknown_objc_runtime) << value;
4205 }
4206
4207 if (Args.hasArg(Ids: OPT_fobjc_gc_only))
4208 Opts.setGC(LangOptions::GCOnly);
4209 else if (Args.hasArg(Ids: OPT_fobjc_gc))
4210 Opts.setGC(LangOptions::HybridGC);
4211 else if (Args.hasArg(Ids: OPT_fobjc_arc)) {
4212 Opts.ObjCAutoRefCount = 1;
4213 if (!Opts.ObjCRuntime.allowsARC())
4214 Diags.Report(DiagID: diag::err_arc_unsupported_on_runtime);
4215 }
4216
4217 // ObjCWeakRuntime tracks whether the runtime supports __weak, not
4218 // whether the feature is actually enabled. This is predominantly
4219 // determined by -fobjc-runtime, but we allow it to be overridden
4220 // from the command line for testing purposes.
4221 if (Args.hasArg(Ids: OPT_fobjc_runtime_has_weak))
4222 Opts.ObjCWeakRuntime = 1;
4223 else
4224 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak();
4225
4226 // ObjCWeak determines whether __weak is actually enabled.
4227 // Note that we allow -fno-objc-weak to disable this even in ARC mode.
4228 if (auto weakArg = Args.getLastArg(Ids: OPT_fobjc_weak, Ids: OPT_fno_objc_weak)) {
4229 if (!weakArg->getOption().matches(ID: OPT_fobjc_weak)) {
4230 assert(!Opts.ObjCWeak);
4231 } else if (Opts.getGC() != LangOptions::NonGC) {
4232 Diags.Report(DiagID: diag::err_objc_weak_with_gc);
4233 } else if (!Opts.ObjCWeakRuntime) {
4234 Diags.Report(DiagID: diag::err_objc_weak_unsupported);
4235 } else {
4236 Opts.ObjCWeak = 1;
4237 }
4238 } else if (Opts.ObjCAutoRefCount) {
4239 Opts.ObjCWeak = Opts.ObjCWeakRuntime;
4240 }
4241
4242 if (Args.hasArg(Ids: OPT_fobjc_subscripting_legacy_runtime))
4243 Opts.ObjCSubscriptingLegacyRuntime =
4244 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX);
4245 }
4246
4247 if (Arg *A = Args.getLastArg(Ids: options::OPT_fgnuc_version_EQ)) {
4248 // Check that the version has 1 to 3 components and the minor and patch
4249 // versions fit in two decimal digits.
4250 VersionTuple GNUCVer;
4251 bool Invalid = GNUCVer.tryParse(string: A->getValue());
4252 unsigned Major = GNUCVer.getMajor();
4253 unsigned Minor = GNUCVer.getMinor().value_or(u: 0);
4254 unsigned Patch = GNUCVer.getSubminor().value_or(u: 0);
4255 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) {
4256 Diags.Report(DiagID: diag::err_drv_invalid_value)
4257 << A->getAsString(Args) << A->getValue();
4258 }
4259 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch;
4260 }
4261
4262 if (T.isOSAIX() && (Args.hasArg(Ids: OPT_mignore_xcoff_visibility)))
4263 Opts.IgnoreXCOFFVisibility = 1;
4264
4265 if (Args.hasArg(Ids: OPT_ftrapv)) {
4266 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
4267 // Set the handler, if one is specified.
4268 Opts.OverflowHandler =
4269 std::string(Args.getLastArgValue(Id: OPT_ftrapv_handler));
4270 } else if (Args.hasFlag(Pos: OPT_fwrapv, Neg: OPT_fno_wrapv, Default: Opts.MSVCCompat)) {
4271 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
4272 }
4273 if (Args.hasArg(Ids: OPT_fwrapv_pointer))
4274 Opts.PointerOverflowDefined = true;
4275
4276 Opts.MSCompatibilityVersion = 0;
4277 if (const Arg *A = Args.getLastArg(Ids: OPT_fms_compatibility_version)) {
4278 VersionTuple VT;
4279 if (VT.tryParse(string: A->getValue()))
4280 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args)
4281 << A->getValue();
4282 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 +
4283 VT.getMinor().value_or(u: 0) * 100000 +
4284 VT.getSubminor().value_or(u: 0);
4285 }
4286
4287 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs
4288 // is specified, or -std is set to a conforming mode.
4289 // Trigraphs are disabled by default in C++17 and C23 onwards.
4290 // For z/OS, trigraphs are enabled by default (without regard to the above).
4291 Opts.Trigraphs =
4292 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) ||
4293 T.isOSzOS();
4294 Opts.Trigraphs =
4295 Args.hasFlag(Pos: OPT_ftrigraphs, Neg: OPT_fno_trigraphs, Default: Opts.Trigraphs);
4296
4297 Opts.ZOSExt =
4298 Args.hasFlag(Pos: OPT_fzos_extensions, Neg: OPT_fno_zos_extensions, Default: T.isOSzOS());
4299
4300 Opts.Blocks = Args.hasArg(Ids: OPT_fblocks) || (Opts.OpenCL
4301 && Opts.OpenCLVersion == 200);
4302
4303 bool HasConvergentOperations = Opts.isTargetDevice() || Opts.OpenCL ||
4304 Opts.HLSL || T.isAMDGPU() || T.isNVPTX();
4305 Opts.ConvergentFunctions =
4306 Args.hasFlag(Pos: OPT_fconvergent_functions, Neg: OPT_fno_convergent_functions,
4307 Default: HasConvergentOperations);
4308
4309 Opts.NoBuiltin = Args.hasArg(Ids: OPT_fno_builtin) || Opts.Freestanding;
4310 if (!Opts.NoBuiltin)
4311 getAllNoBuiltinFuncValues(Args, Funcs&: Opts.NoBuiltinFuncs);
4312 if (Arg *A = Args.getLastArg(Ids: options::OPT_LongDouble_Group)) {
4313 if (A->getOption().matches(ID: options::OPT_mlong_double_64))
4314 Opts.LongDoubleSize = 64;
4315 else if (A->getOption().matches(ID: options::OPT_mlong_double_80))
4316 Opts.LongDoubleSize = 80;
4317 else if (A->getOption().matches(ID: options::OPT_mlong_double_128))
4318 Opts.LongDoubleSize = 128;
4319 else
4320 Opts.LongDoubleSize = 0;
4321 }
4322 if (Opts.FastRelaxedMath || Opts.CLUnsafeMath)
4323 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast);
4324
4325 llvm::sort(C&: Opts.ModuleFeatures);
4326
4327 // -mrtd option
4328 if (Arg *A = Args.getLastArg(Ids: OPT_mrtd)) {
4329 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None)
4330 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
4331 << A->getSpelling() << "-fdefault-calling-conv";
4332 else {
4333 switch (T.getArch()) {
4334 case llvm::Triple::x86:
4335 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall);
4336 break;
4337 case llvm::Triple::m68k:
4338 Opts.setDefaultCallingConv(LangOptions::DCC_RtdCall);
4339 break;
4340 default:
4341 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
4342 << A->getSpelling() << T.getTriple();
4343 }
4344 }
4345 }
4346
4347 // Check if -fopenmp is specified and set default version to 5.1.
4348 Opts.OpenMP = Args.hasArg(Ids: OPT_fopenmp) ? 51 : 0;
4349 // Check if -fopenmp-simd is specified.
4350 bool IsSimdSpecified =
4351 Args.hasFlag(Pos: options::OPT_fopenmp_simd, Neg: options::OPT_fno_openmp_simd,
4352 /*Default=*/false);
4353 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified;
4354 Opts.OpenMPUseTLS =
4355 Opts.OpenMP && !Args.hasArg(Ids: options::OPT_fnoopenmp_use_tls);
4356 Opts.OpenMPIsTargetDevice =
4357 Opts.OpenMP && Args.hasArg(Ids: options::OPT_fopenmp_is_target_device);
4358 Opts.OpenMPIRBuilder =
4359 Opts.OpenMP && Args.hasArg(Ids: options::OPT_fopenmp_enable_irbuilder);
4360 bool IsTargetSpecified =
4361 Opts.OpenMPIsTargetDevice || Args.hasArg(Ids: options::OPT_offload_targets_EQ);
4362
4363 if (Opts.OpenMP || Opts.OpenMPSimd) {
4364 if (int Version = getLastArgIntValue(
4365 Args, Id: OPT_fopenmp_version_EQ,
4366 Default: (IsSimdSpecified || IsTargetSpecified) ? 51 : Opts.OpenMP, Diags))
4367 Opts.OpenMP = Version;
4368 // Provide diagnostic when a given target is not expected to be an OpenMP
4369 // device or host.
4370 if (!Opts.OpenMPIsTargetDevice) {
4371 switch (T.getArch()) {
4372 default:
4373 break;
4374 // Add unsupported host targets here:
4375 case llvm::Triple::nvptx:
4376 case llvm::Triple::nvptx64:
4377 Diags.Report(DiagID: diag::err_drv_omp_host_target_not_supported) << T.str();
4378 break;
4379 }
4380 }
4381 }
4382
4383 // Set the flag to prevent the implementation from emitting device exception
4384 // handling code for those requiring so.
4385 if ((Opts.OpenMPIsTargetDevice && T.isGPU()) || Opts.OpenCLCPlusPlus) {
4386
4387 Opts.Exceptions = 0;
4388 Opts.CXXExceptions = 0;
4389 }
4390 if (Opts.OpenMPIsTargetDevice && T.isNVPTX()) {
4391 Opts.OpenMPCUDANumSMs =
4392 getLastArgIntValue(Args, Id: options::OPT_fopenmp_cuda_number_of_sm_EQ,
4393 Default: Opts.OpenMPCUDANumSMs, Diags);
4394 Opts.OpenMPCUDABlocksPerSM =
4395 getLastArgIntValue(Args, Id: options::OPT_fopenmp_cuda_blocks_per_sm_EQ,
4396 Default: Opts.OpenMPCUDABlocksPerSM, Diags);
4397 }
4398
4399 // Set the value of the debugging flag used in the new offloading device RTL.
4400 // Set either by a specific value or to a default if not specified.
4401 if (Opts.OpenMPIsTargetDevice && (Args.hasArg(Ids: OPT_fopenmp_target_debug) ||
4402 Args.hasArg(Ids: OPT_fopenmp_target_debug_EQ))) {
4403 Opts.OpenMPTargetDebug = getLastArgIntValue(
4404 Args, Id: OPT_fopenmp_target_debug_EQ, Default: Opts.OpenMPTargetDebug, Diags);
4405 if (!Opts.OpenMPTargetDebug && Args.hasArg(Ids: OPT_fopenmp_target_debug))
4406 Opts.OpenMPTargetDebug = 1;
4407 }
4408
4409 if (Opts.OpenMPIsTargetDevice) {
4410 if (Args.hasArg(Ids: OPT_fopenmp_assume_teams_oversubscription))
4411 Opts.OpenMPTeamSubscription = true;
4412 if (Args.hasArg(Ids: OPT_fopenmp_assume_threads_oversubscription))
4413 Opts.OpenMPThreadSubscription = true;
4414 }
4415
4416 // Get the OpenMP target triples if any.
4417 if (Arg *A = Args.getLastArg(Ids: options::OPT_offload_targets_EQ)) {
4418 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit };
4419 auto getArchPtrSize = [](const llvm::Triple &T) {
4420 if (T.isArch16Bit())
4421 return Arch16Bit;
4422 if (T.isArch32Bit())
4423 return Arch32Bit;
4424 assert(T.isArch64Bit() && "Expected 64-bit architecture");
4425 return Arch64Bit;
4426 };
4427
4428 for (unsigned i = 0; i < A->getNumValues(); ++i) {
4429 llvm::Triple TT(A->getValue(N: i));
4430
4431 if (TT.getArch() == llvm::Triple::UnknownArch ||
4432 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() ||
4433 TT.getArch() == llvm::Triple::spirv64 ||
4434 TT.getArch() == llvm::Triple::systemz ||
4435 TT.getArch() == llvm::Triple::loongarch64 ||
4436 TT.getArch() == llvm::Triple::nvptx ||
4437 TT.getArch() == llvm::Triple::nvptx64 || TT.isAMDGCN() ||
4438 TT.getArch() == llvm::Triple::x86 ||
4439 TT.getArch() == llvm::Triple::x86_64))
4440 Diags.Report(DiagID: diag::err_drv_invalid_omp_target) << A->getValue(N: i);
4441 else if (getArchPtrSize(T) != getArchPtrSize(TT))
4442 Diags.Report(DiagID: diag::err_drv_incompatible_omp_arch)
4443 << A->getValue(N: i) << T.str();
4444 else
4445 Opts.OMPTargetTriples.push_back(x: TT);
4446 }
4447 }
4448
4449 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options
4450 Opts.OpenMPCUDAMode = Opts.OpenMPIsTargetDevice &&
4451 (T.isNVPTX() || T.isAMDGCN()) &&
4452 Args.hasArg(Ids: options::OPT_fopenmp_cuda_mode);
4453
4454 // OpenACC Configuration.
4455 if (Args.hasArg(Ids: options::OPT_fopenacc))
4456 Opts.OpenACC = true;
4457
4458 if (Arg *A = Args.getLastArg(Ids: OPT_ffp_contract)) {
4459 StringRef Val = A->getValue();
4460 if (Val == "fast")
4461 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast);
4462 else if (Val == "on")
4463 Opts.setDefaultFPContractMode(LangOptions::FPM_On);
4464 else if (Val == "off")
4465 Opts.setDefaultFPContractMode(LangOptions::FPM_Off);
4466 else if (Val == "fast-honor-pragmas")
4467 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas);
4468 else
4469 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
4470 }
4471
4472 if (auto *A =
4473 Args.getLastArg(Ids: OPT_fsanitize_undefined_ignore_overflow_pattern_EQ)) {
4474 for (int i = 0, n = A->getNumValues(); i != n; ++i) {
4475 Opts.OverflowPatternExclusionMask |=
4476 llvm::StringSwitch<unsigned>(A->getValue(N: i))
4477 .Case(S: "none", Value: LangOptionsBase::None)
4478 .Case(S: "all", Value: LangOptionsBase::All)
4479 .Case(S: "add-unsigned-overflow-test",
4480 Value: LangOptionsBase::AddUnsignedOverflowTest)
4481 .Case(S: "add-signed-overflow-test",
4482 Value: LangOptionsBase::AddSignedOverflowTest)
4483 .Case(S: "negated-unsigned-const", Value: LangOptionsBase::NegUnsignedConst)
4484 .Case(S: "unsigned-post-decr-while",
4485 Value: LangOptionsBase::PostDecrInWhile)
4486 .Default(Value: 0);
4487 }
4488 }
4489
4490 // Parse -fsanitize= arguments.
4491 parseSanitizerKinds(FlagName: "-fsanitize=", Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_EQ),
4492 Diags, S&: Opts.Sanitize);
4493 parseSanitizerKinds(
4494 FlagName: "-fsanitize-ignore-for-ubsan-feature=",
4495 Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_ignore_for_ubsan_feature_EQ), Diags,
4496 S&: Opts.UBSanFeatureIgnoredSanitize);
4497 Opts.NoSanitizeFiles = Args.getAllArgValues(Id: OPT_fsanitize_ignorelist_EQ);
4498 std::vector<std::string> systemIgnorelists =
4499 Args.getAllArgValues(Id: OPT_fsanitize_system_ignorelist_EQ);
4500 Opts.NoSanitizeFiles.insert(position: Opts.NoSanitizeFiles.end(),
4501 first: systemIgnorelists.begin(),
4502 last: systemIgnorelists.end());
4503
4504 if (Arg *A = Args.getLastArg(Ids: OPT_fclang_abi_compat_EQ)) {
4505 Opts.setClangABICompat(LangOptions::ClangABI::Latest);
4506
4507 StringRef Ver = A->getValue();
4508 std::pair<StringRef, StringRef> VerParts = Ver.split(Separator: '.');
4509 int Major, Minor = 0;
4510
4511 // Check the version number is valid: either 3.x (0 <= x <= 9) or
4512 // y or y.0 (4 <= y <= current version).
4513 if (!VerParts.first.starts_with(Prefix: "0") &&
4514 !VerParts.first.getAsInteger(Radix: 10, Result&: Major) && 3 <= Major &&
4515 Major <= MAX_CLANG_ABI_COMPAT_VERSION &&
4516 (Major == 3
4517 ? VerParts.second.size() == 1 &&
4518 !VerParts.second.getAsInteger(Radix: 10, Result&: Minor)
4519 : VerParts.first.size() == Ver.size() || VerParts.second == "0")) {
4520 // Got a valid version number.
4521#define ABI_VER_MAJOR_MINOR(Major_, Minor_) \
4522 if (std::tuple(Major, Minor) <= std::tuple(Major_, Minor_)) \
4523 Opts.setClangABICompat(LangOptions::ClangABI::Ver##Major_##_##Minor_); \
4524 else
4525#define ABI_VER_MAJOR(Major_) \
4526 if (Major <= Major_) \
4527 Opts.setClangABICompat(LangOptions::ClangABI::Ver##Major_); \
4528 else
4529#define ABI_VER_LATEST(Latest) \
4530 { /* Equivalent to latest version - do nothing */ \
4531 }
4532#include "clang/Basic/ABIVersions.def"
4533 } else if (Ver != "latest") {
4534 Diags.Report(DiagID: diag::err_drv_invalid_value)
4535 << A->getAsString(Args) << A->getValue();
4536 }
4537 }
4538
4539 if (Arg *A = Args.getLastArg(Ids: OPT_msign_return_address_EQ)) {
4540 StringRef SignScope = A->getValue();
4541
4542 if (SignScope.equals_insensitive(RHS: "none"))
4543 Opts.setSignReturnAddressScope(
4544 LangOptions::SignReturnAddressScopeKind::None);
4545 else if (SignScope.equals_insensitive(RHS: "all"))
4546 Opts.setSignReturnAddressScope(
4547 LangOptions::SignReturnAddressScopeKind::All);
4548 else if (SignScope.equals_insensitive(RHS: "non-leaf"))
4549 Opts.setSignReturnAddressScope(
4550 LangOptions::SignReturnAddressScopeKind::NonLeaf);
4551 else
4552 Diags.Report(DiagID: diag::err_drv_invalid_value)
4553 << A->getAsString(Args) << SignScope;
4554
4555 if (Arg *A = Args.getLastArg(Ids: OPT_msign_return_address_key_EQ)) {
4556 StringRef SignKey = A->getValue();
4557 if (!SignScope.empty() && !SignKey.empty()) {
4558 if (SignKey == "a_key")
4559 Opts.setSignReturnAddressKey(
4560 LangOptions::SignReturnAddressKeyKind::AKey);
4561 else if (SignKey == "b_key")
4562 Opts.setSignReturnAddressKey(
4563 LangOptions::SignReturnAddressKeyKind::BKey);
4564 else
4565 Diags.Report(DiagID: diag::err_drv_invalid_value)
4566 << A->getAsString(Args) << SignKey;
4567 }
4568 }
4569 }
4570
4571 // The value can be empty, which indicates the system default should be used.
4572 StringRef CXXABI = Args.getLastArgValue(Id: OPT_fcxx_abi_EQ);
4573 if (!CXXABI.empty()) {
4574 if (!TargetCXXABI::isABI(Name: CXXABI)) {
4575 Diags.Report(DiagID: diag::err_invalid_cxx_abi) << CXXABI;
4576 } else {
4577 auto Kind = TargetCXXABI::getKind(Name: CXXABI);
4578 if (!TargetCXXABI::isSupportedCXXABI(T, Kind))
4579 Diags.Report(DiagID: diag::err_unsupported_cxx_abi) << CXXABI << T.str();
4580 else
4581 Opts.CXXABI = Kind;
4582 }
4583 }
4584
4585 Opts.RelativeCXXABIVTables =
4586 Args.hasFlag(Pos: options::OPT_fexperimental_relative_cxx_abi_vtables,
4587 Neg: options::OPT_fno_experimental_relative_cxx_abi_vtables,
4588 Default: TargetCXXABI::usesRelativeVTables(T));
4589
4590 // RTTI is on by default.
4591 bool HasRTTI = !Args.hasArg(Ids: options::OPT_fno_rtti);
4592 Opts.OmitVTableRTTI =
4593 Args.hasFlag(Pos: options::OPT_fexperimental_omit_vtable_rtti,
4594 Neg: options::OPT_fno_experimental_omit_vtable_rtti, Default: false);
4595 if (Opts.OmitVTableRTTI && HasRTTI)
4596 Diags.Report(DiagID: diag::err_drv_using_omit_rtti_component_without_no_rtti);
4597
4598 for (const auto &A : Args.getAllArgValues(Id: OPT_fmacro_prefix_map_EQ)) {
4599 auto Split = StringRef(A).split(Separator: '=');
4600 Opts.MacroPrefixMap.insert(
4601 x: {std::string(Split.first), std::string(Split.second)});
4602 }
4603
4604 Opts.UseTargetPathSeparator =
4605 !Args.getLastArg(Ids: OPT_fno_file_reproducible) &&
4606 (Args.getLastArg(Ids: OPT_ffile_compilation_dir_EQ) ||
4607 Args.getLastArg(Ids: OPT_fmacro_prefix_map_EQ) ||
4608 Args.getLastArg(Ids: OPT_ffile_reproducible));
4609
4610 // Error if -mvscale-min is unbounded.
4611 if (Arg *A = Args.getLastArg(Ids: options::OPT_mvscale_min_EQ)) {
4612 unsigned VScaleMin;
4613 if (StringRef(A->getValue()).getAsInteger(Radix: 10, Result&: VScaleMin) || VScaleMin == 0)
4614 Diags.Report(DiagID: diag::err_cc1_unbounded_vscale_min);
4615 }
4616 if (Arg *A = Args.getLastArg(Ids: options::OPT_mvscale_streaming_min_EQ)) {
4617 unsigned VScaleMin;
4618 if (StringRef(A->getValue()).getAsInteger(Radix: 10, Result&: VScaleMin) || VScaleMin == 0)
4619 Diags.Report(DiagID: diag::err_cc1_unbounded_vscale_min);
4620 }
4621
4622 if (const Arg *A = Args.getLastArg(Ids: OPT_frandomize_layout_seed_file_EQ)) {
4623 std::ifstream SeedFile(A->getValue(N: 0));
4624
4625 if (!SeedFile.is_open())
4626 Diags.Report(DiagID: diag::err_drv_cannot_open_randomize_layout_seed_file)
4627 << A->getValue(N: 0);
4628
4629 std::getline(is&: SeedFile, str&: Opts.RandstructSeed);
4630 }
4631
4632 if (const Arg *A = Args.getLastArg(Ids: OPT_frandomize_layout_seed_EQ))
4633 Opts.RandstructSeed = A->getValue(N: 0);
4634
4635 if (const auto *Arg = Args.getLastArg(Ids: options::OPT_falloc_token_max_EQ)) {
4636 StringRef S = Arg->getValue();
4637 uint64_t Value = 0;
4638 if (S.getAsInteger(Radix: 0, Result&: Value))
4639 Diags.Report(DiagID: diag::err_drv_invalid_value) << Arg->getAsString(Args) << S;
4640 else
4641 Opts.AllocTokenMax = Value;
4642 }
4643
4644 if (const auto *Arg = Args.getLastArg(Ids: options::OPT_falloc_token_mode_EQ)) {
4645 StringRef S = Arg->getValue();
4646 if (auto Mode = getAllocTokenModeFromString(Name: S))
4647 Opts.AllocTokenMode = Mode;
4648 else
4649 Diags.Report(DiagID: diag::err_drv_invalid_value) << Arg->getAsString(Args) << S;
4650 }
4651
4652 // Enable options for matrix types.
4653 if (Opts.MatrixTypes) {
4654 if (const Arg *A = Args.getLastArg(Ids: OPT_fmatrix_memory_layout_EQ)) {
4655 StringRef ClangValue = A->getValue();
4656 if (ClangValue == "row-major")
4657 Opts.setDefaultMatrixMemoryLayout(
4658 LangOptions::MatrixMemoryLayout::MatrixRowMajor);
4659 else
4660 Opts.setDefaultMatrixMemoryLayout(
4661 LangOptions::MatrixMemoryLayout::MatrixColMajor);
4662
4663 for (Arg *A : Args.filtered(Ids: options::OPT_mllvm)) {
4664 StringRef OptValue = A->getValue();
4665 if (OptValue.consume_front(Prefix: "-matrix-default-layout=") &&
4666 ClangValue != OptValue)
4667 Diags.Report(DiagID: diag::err_conflicting_matrix_layout_flags)
4668 << ClangValue << OptValue;
4669 }
4670 }
4671 }
4672
4673 // Validate options for HLSL
4674 if (Opts.HLSL) {
4675 // TODO: Revisit restricting SPIR-V to logical once we've figured out how to
4676 // handle PhysicalStorageBuffer64 memory model
4677 if (T.isDXIL() || T.isSPIRVLogical()) {
4678 enum { ShaderModel, VulkanEnv, ShaderStage };
4679 enum { OS, Environment };
4680
4681 int ExpectedOS = T.isSPIRVLogical() ? VulkanEnv : ShaderModel;
4682
4683 if (T.getOSName().empty()) {
4684 Diags.Report(DiagID: diag::err_drv_hlsl_bad_shader_required_in_target)
4685 << ExpectedOS << OS << T.str();
4686 } else if (T.getEnvironmentName().empty()) {
4687 Diags.Report(DiagID: diag::err_drv_hlsl_bad_shader_required_in_target)
4688 << ShaderStage << Environment << T.str();
4689 } else if (!T.isShaderStageEnvironment()) {
4690 Diags.Report(DiagID: diag::err_drv_hlsl_bad_shader_unsupported)
4691 << ShaderStage << T.getEnvironmentName() << T.str();
4692 }
4693
4694 if (T.isDXIL()) {
4695 if (!T.isShaderModelOS() || T.getOSVersion() == VersionTuple(0)) {
4696 Diags.Report(DiagID: diag::err_drv_hlsl_bad_shader_unsupported)
4697 << ShaderModel << T.getOSName() << T.str();
4698 }
4699 // Validate that if fnative-half-type is given, that
4700 // the language standard is at least hlsl2018, and that
4701 // the target shader model is at least 6.2.
4702 if (Args.getLastArg(Ids: OPT_fnative_half_type) ||
4703 Args.getLastArg(Ids: OPT_fnative_int16_type)) {
4704 const LangStandard &Std =
4705 LangStandard::getLangStandardForKind(K: Opts.LangStd);
4706 if (!(Opts.LangStd >= LangStandard::lang_hlsl2018 &&
4707 T.getOSVersion() >= VersionTuple(6, 2)))
4708 Diags.Report(DiagID: diag::err_drv_hlsl_16bit_types_unsupported)
4709 << "-enable-16bit-types" << true << Std.getName()
4710 << T.getOSVersion().getAsString();
4711 }
4712 } else if (T.isSPIRVLogical()) {
4713 if (!T.isVulkanOS() || T.getVulkanVersion() == VersionTuple(0)) {
4714 Diags.Report(DiagID: diag::err_drv_hlsl_bad_shader_unsupported)
4715 << VulkanEnv << T.getOSName() << T.str();
4716 }
4717 if (Args.getLastArg(Ids: OPT_fnative_half_type) ||
4718 Args.getLastArg(Ids: OPT_fnative_int16_type)) {
4719 const char *Str = Args.getLastArg(Ids: OPT_fnative_half_type)
4720 ? "-fnative-half-type"
4721 : "-fnative-int16-type";
4722 const LangStandard &Std =
4723 LangStandard::getLangStandardForKind(K: Opts.LangStd);
4724 if (!(Opts.LangStd >= LangStandard::lang_hlsl2018))
4725 Diags.Report(DiagID: diag::err_drv_hlsl_16bit_types_unsupported)
4726 << Str << false << Std.getName();
4727 }
4728 } else {
4729 llvm_unreachable("expected DXIL or SPIR-V target");
4730 }
4731 } else
4732 Diags.Report(DiagID: diag::err_drv_hlsl_unsupported_target) << T.str();
4733
4734 if (Opts.LangStd < LangStandard::lang_hlsl202x) {
4735 const LangStandard &Requested =
4736 LangStandard::getLangStandardForKind(K: Opts.LangStd);
4737 const LangStandard &Recommended =
4738 LangStandard::getLangStandardForKind(K: LangStandard::lang_hlsl202x);
4739 Diags.Report(DiagID: diag::warn_hlsl_langstd_minimal)
4740 << Requested.getName() << Recommended.getName();
4741 }
4742 }
4743
4744 return Diags.getNumErrors() == NumErrorsBefore;
4745}
4746
4747static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) {
4748 switch (Action) {
4749 case frontend::ASTDeclList:
4750 case frontend::ASTDump:
4751 case frontend::ASTPrint:
4752 case frontend::ASTView:
4753 case frontend::EmitAssembly:
4754 case frontend::EmitBC:
4755 case frontend::EmitCIR:
4756 case frontend::EmitCIRBC:
4757 case frontend::EmitHTML:
4758 case frontend::EmitLLVM:
4759 case frontend::EmitLLVMOnly:
4760 case frontend::EmitCodeGenOnly:
4761 case frontend::EmitObj:
4762 case frontend::ExtractAPI:
4763 case frontend::FixIt:
4764 case frontend::GenerateModule:
4765 case frontend::GenerateModuleInterface:
4766 case frontend::GenerateReducedModuleInterface:
4767 case frontend::GenerateHeaderUnit:
4768 case frontend::GeneratePCH:
4769 case frontend::GenerateInterfaceStubs:
4770 case frontend::ParseSyntaxOnly:
4771 case frontend::ModuleFileInfo:
4772 case frontend::VerifyPCH:
4773 case frontend::PluginAction:
4774 case frontend::RewriteObjC:
4775 case frontend::RewriteTest:
4776 case frontend::RunAnalysis:
4777 return false;
4778
4779 case frontend::DumpCompilerOptions:
4780 case frontend::DumpRawTokens:
4781 case frontend::DumpTokens:
4782 case frontend::InitOnly:
4783 case frontend::PrintPreamble:
4784 case frontend::PrintPreprocessedInput:
4785 case frontend::RewriteMacros:
4786 case frontend::RunPreprocessorOnly:
4787 case frontend::PrintDependencyDirectivesSourceMinimizerOutput:
4788 return true;
4789 }
4790 llvm_unreachable("invalid frontend action");
4791}
4792
4793static bool isCodeGenAction(frontend::ActionKind Action) {
4794 switch (Action) {
4795 case frontend::EmitAssembly:
4796 case frontend::EmitBC:
4797 case frontend::EmitCIR:
4798 case frontend::EmitCIRBC:
4799 case frontend::EmitHTML:
4800 case frontend::EmitLLVM:
4801 case frontend::EmitLLVMOnly:
4802 case frontend::EmitCodeGenOnly:
4803 case frontend::EmitObj:
4804 case frontend::GenerateModule:
4805 case frontend::GenerateModuleInterface:
4806 case frontend::GenerateReducedModuleInterface:
4807 case frontend::GenerateHeaderUnit:
4808 case frontend::GeneratePCH:
4809 case frontend::GenerateInterfaceStubs:
4810 return true;
4811 case frontend::ASTDeclList:
4812 case frontend::ASTDump:
4813 case frontend::ASTPrint:
4814 case frontend::ASTView:
4815 case frontend::ExtractAPI:
4816 case frontend::FixIt:
4817 case frontend::ParseSyntaxOnly:
4818 case frontend::ModuleFileInfo:
4819 case frontend::VerifyPCH:
4820 case frontend::PluginAction:
4821 case frontend::RewriteObjC:
4822 case frontend::RewriteTest:
4823 case frontend::RunAnalysis:
4824 case frontend::DumpCompilerOptions:
4825 case frontend::DumpRawTokens:
4826 case frontend::DumpTokens:
4827 case frontend::InitOnly:
4828 case frontend::PrintPreamble:
4829 case frontend::PrintPreprocessedInput:
4830 case frontend::RewriteMacros:
4831 case frontend::RunPreprocessorOnly:
4832 case frontend::PrintDependencyDirectivesSourceMinimizerOutput:
4833 return false;
4834 }
4835 llvm_unreachable("invalid frontend action");
4836}
4837
4838static void GeneratePreprocessorArgs(const PreprocessorOptions &Opts,
4839 ArgumentConsumer Consumer,
4840 const LangOptions &LangOpts,
4841 const FrontendOptions &FrontendOpts,
4842 const CodeGenOptions &CodeGenOpts) {
4843 const PreprocessorOptions *PreprocessorOpts = &Opts;
4844
4845#define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \
4846 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
4847#include "clang/Options/Options.inc"
4848#undef PREPROCESSOR_OPTION_WITH_MARSHALLING
4849
4850 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate)
4851 GenerateArg(Consumer, OptSpecifier: OPT_pch_through_hdrstop_use);
4852
4853 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn)
4854 GenerateArg(Consumer, OptSpecifier: OPT_error_on_deserialized_pch_decl, Value: D);
4855
4856 if (Opts.PrecompiledPreambleBytes != std::make_pair(x: 0u, y: false))
4857 GenerateArg(Consumer, OptSpecifier: OPT_preamble_bytes_EQ,
4858 Value: Twine(Opts.PrecompiledPreambleBytes.first) + "," +
4859 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"));
4860
4861 for (const auto &M : Opts.Macros) {
4862 // Don't generate __CET__ macro definitions. They are implied by the
4863 // -fcf-protection option that is generated elsewhere.
4864 if (M.first == "__CET__=1" && !M.second &&
4865 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch)
4866 continue;
4867 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn &&
4868 !CodeGenOpts.CFProtectionBranch)
4869 continue;
4870 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn &&
4871 CodeGenOpts.CFProtectionBranch)
4872 continue;
4873
4874 GenerateArg(Consumer, OptSpecifier: M.second ? OPT_U : OPT_D, Value: M.first);
4875 }
4876
4877 for (const auto &I : Opts.Includes) {
4878 // Don't generate OpenCL includes. They are implied by other flags that are
4879 // generated elsewhere.
4880 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader &&
4881 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") ||
4882 I == "opencl-c.h"))
4883 continue;
4884 // Don't generate HLSL includes. They are implied by other flags that are
4885 // generated elsewhere.
4886 if (LangOpts.HLSL && I == "hlsl.h")
4887 continue;
4888
4889 GenerateArg(Consumer, OptSpecifier: OPT_include, Value: I);
4890 }
4891
4892 for (const auto &CI : Opts.ChainedIncludes)
4893 GenerateArg(Consumer, OptSpecifier: OPT_chain_include, Value: CI);
4894
4895 for (const auto &RF : Opts.RemappedFiles)
4896 GenerateArg(Consumer, OptSpecifier: OPT_remap_file, Value: RF.first + ";" + RF.second);
4897
4898 if (Opts.SourceDateEpoch)
4899 GenerateArg(Consumer, OptSpecifier: OPT_source_date_epoch, Value: Twine(*Opts.SourceDateEpoch));
4900
4901 if (Opts.DefineTargetOSMacros)
4902 GenerateArg(Consumer, OptSpecifier: OPT_fdefine_target_os_macros);
4903
4904 for (const auto &EmbedEntry : Opts.EmbedEntries)
4905 GenerateArg(Consumer, OptSpecifier: OPT_embed_dir_EQ, Value: EmbedEntry);
4906
4907 // Don't handle LexEditorPlaceholders. It is implied by the action that is
4908 // generated elsewhere.
4909}
4910
4911static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
4912 DiagnosticsEngine &Diags,
4913 frontend::ActionKind Action,
4914 const FrontendOptions &FrontendOpts) {
4915 unsigned NumErrorsBefore = Diags.getNumErrors();
4916
4917 PreprocessorOptions *PreprocessorOpts = &Opts;
4918
4919#define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \
4920 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
4921#include "clang/Options/Options.inc"
4922#undef PREPROCESSOR_OPTION_WITH_MARSHALLING
4923
4924 Opts.PCHWithHdrStop = Args.hasArg(Ids: OPT_pch_through_hdrstop_create) ||
4925 Args.hasArg(Ids: OPT_pch_through_hdrstop_use);
4926
4927 for (const auto *A : Args.filtered(Ids: OPT_error_on_deserialized_pch_decl))
4928 Opts.DeserializedPCHDeclsToErrorOn.insert(x: A->getValue());
4929
4930 if (const Arg *A = Args.getLastArg(Ids: OPT_preamble_bytes_EQ)) {
4931 StringRef Value(A->getValue());
4932 size_t Comma = Value.find(C: ',');
4933 unsigned Bytes = 0;
4934 unsigned EndOfLine = 0;
4935
4936 if (Comma == StringRef::npos ||
4937 Value.substr(Start: 0, N: Comma).getAsInteger(Radix: 10, Result&: Bytes) ||
4938 Value.substr(Start: Comma + 1).getAsInteger(Radix: 10, Result&: EndOfLine))
4939 Diags.Report(DiagID: diag::err_drv_preamble_format);
4940 else {
4941 Opts.PrecompiledPreambleBytes.first = Bytes;
4942 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0);
4943 }
4944 }
4945
4946 // Add macros from the command line.
4947 for (const auto *A : Args.filtered(Ids: OPT_D, Ids: OPT_U)) {
4948 if (A->getOption().matches(ID: OPT_D))
4949 Opts.addMacroDef(Name: A->getValue());
4950 else
4951 Opts.addMacroUndef(Name: A->getValue());
4952 }
4953
4954 // Add the ordered list of -includes.
4955 for (const auto *A : Args.filtered(Ids: OPT_include))
4956 Opts.Includes.emplace_back(args: A->getValue());
4957
4958 for (const auto *A : Args.filtered(Ids: OPT_chain_include))
4959 Opts.ChainedIncludes.emplace_back(args: A->getValue());
4960
4961 for (const auto *A : Args.filtered(Ids: OPT_remap_file)) {
4962 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(Separator: ';');
4963
4964 if (Split.second.empty()) {
4965 Diags.Report(DiagID: diag::err_drv_invalid_remap_file) << A->getAsString(Args);
4966 continue;
4967 }
4968
4969 Opts.addRemappedFile(From: Split.first, To: Split.second);
4970 }
4971
4972 if (const Arg *A = Args.getLastArg(Ids: OPT_source_date_epoch)) {
4973 StringRef Epoch = A->getValue();
4974 // SOURCE_DATE_EPOCH, if specified, must be a non-negative decimal integer.
4975 // On time64 systems, pick 253402300799 (the UNIX timestamp of
4976 // 9999-12-31T23:59:59Z) as the upper bound.
4977 const uint64_t MaxTimestamp =
4978 std::min<uint64_t>(a: std::numeric_limits<time_t>::max(), b: 253402300799);
4979 uint64_t V;
4980 if (Epoch.getAsInteger(Radix: 10, Result&: V) || V > MaxTimestamp) {
4981 Diags.Report(DiagID: diag::err_fe_invalid_source_date_epoch)
4982 << Epoch << MaxTimestamp;
4983 } else {
4984 Opts.SourceDateEpoch = V;
4985 }
4986 }
4987
4988 for (const auto *A : Args.filtered(Ids: OPT_embed_dir_EQ)) {
4989 StringRef Val = A->getValue();
4990 Opts.EmbedEntries.push_back(x: std::string(Val));
4991 }
4992
4993 // Always avoid lexing editor placeholders when we're just running the
4994 // preprocessor as we never want to emit the
4995 // "editor placeholder in source file" error in PP only mode.
4996 if (isStrictlyPreprocessorAction(Action))
4997 Opts.LexEditorPlaceholders = false;
4998
4999 Opts.DefineTargetOSMacros =
5000 Args.hasFlag(Pos: OPT_fdefine_target_os_macros,
5001 Neg: OPT_fno_define_target_os_macros, Default: Opts.DefineTargetOSMacros);
5002
5003 return Diags.getNumErrors() == NumErrorsBefore;
5004}
5005
5006static void
5007GeneratePreprocessorOutputArgs(const PreprocessorOutputOptions &Opts,
5008 ArgumentConsumer Consumer,
5009 frontend::ActionKind Action) {
5010 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts;
5011
5012#define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \
5013 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
5014#include "clang/Options/Options.inc"
5015#undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING
5016
5017 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP;
5018 if (Generate_dM)
5019 GenerateArg(Consumer, OptSpecifier: OPT_dM);
5020 if (!Generate_dM && Opts.ShowMacros)
5021 GenerateArg(Consumer, OptSpecifier: OPT_dD);
5022 if (Opts.DirectivesOnly)
5023 GenerateArg(Consumer, OptSpecifier: OPT_fdirectives_only);
5024}
5025
5026static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
5027 ArgList &Args, DiagnosticsEngine &Diags,
5028 frontend::ActionKind Action) {
5029 unsigned NumErrorsBefore = Diags.getNumErrors();
5030
5031 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts;
5032
5033#define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \
5034 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
5035#include "clang/Options/Options.inc"
5036#undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING
5037
5038 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(Ids: OPT_dM);
5039 Opts.ShowMacros = Args.hasArg(Ids: OPT_dM) || Args.hasArg(Ids: OPT_dD);
5040 Opts.DirectivesOnly = Args.hasArg(Ids: OPT_fdirectives_only);
5041
5042 return Diags.getNumErrors() == NumErrorsBefore;
5043}
5044
5045static void GenerateTargetArgs(const TargetOptions &Opts,
5046 ArgumentConsumer Consumer) {
5047 const TargetOptions *TargetOpts = &Opts;
5048#define TARGET_OPTION_WITH_MARSHALLING(...) \
5049 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
5050#include "clang/Options/Options.inc"
5051#undef TARGET_OPTION_WITH_MARSHALLING
5052
5053 if (!Opts.SDKVersion.empty())
5054 GenerateArg(Consumer, OptSpecifier: OPT_target_sdk_version_EQ,
5055 Value: Opts.SDKVersion.getAsString());
5056 if (!Opts.DarwinTargetVariantSDKVersion.empty())
5057 GenerateArg(Consumer, OptSpecifier: OPT_darwin_target_variant_sdk_version_EQ,
5058 Value: Opts.DarwinTargetVariantSDKVersion.getAsString());
5059
5060 // Generate AMDGPU xnack and sramecc flags.
5061 if (Opts.AMDGPUXnackState == TargetOptions::AMDGPUFeatureState::Enabled)
5062 GenerateArg(Consumer, OptSpecifier: OPT_mxnack);
5063 else if (Opts.AMDGPUXnackState == TargetOptions::AMDGPUFeatureState::Disabled)
5064 GenerateArg(Consumer, OptSpecifier: OPT_mno_xnack);
5065
5066 if (Opts.AMDGPUSramEccState == TargetOptions::AMDGPUFeatureState::Enabled)
5067 GenerateArg(Consumer, OptSpecifier: OPT_msramecc);
5068 else if (Opts.AMDGPUSramEccState ==
5069 TargetOptions::AMDGPUFeatureState::Disabled)
5070 GenerateArg(Consumer, OptSpecifier: OPT_mno_sramecc);
5071}
5072
5073static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args,
5074 DiagnosticsEngine &Diags) {
5075 unsigned NumErrorsBefore = Diags.getNumErrors();
5076
5077 TargetOptions *TargetOpts = &Opts;
5078
5079#define TARGET_OPTION_WITH_MARSHALLING(...) \
5080 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
5081#include "clang/Options/Options.inc"
5082#undef TARGET_OPTION_WITH_MARSHALLING
5083
5084 if (Arg *A = Args.getLastArg(Ids: options::OPT_target_sdk_version_EQ)) {
5085 llvm::VersionTuple Version;
5086 if (Version.tryParse(string: A->getValue()))
5087 Diags.Report(DiagID: diag::err_drv_invalid_value)
5088 << A->getAsString(Args) << A->getValue();
5089 else
5090 Opts.SDKVersion = Version;
5091 }
5092 if (Arg *A =
5093 Args.getLastArg(Ids: options::OPT_darwin_target_variant_sdk_version_EQ)) {
5094 llvm::VersionTuple Version;
5095 if (Version.tryParse(string: A->getValue()))
5096 Diags.Report(DiagID: diag::err_drv_invalid_value)
5097 << A->getAsString(Args) << A->getValue();
5098 else
5099 Opts.DarwinTargetVariantSDKVersion = Version;
5100 }
5101
5102 if (Arg *A = Args.getLastArg(Ids: options::OPT_mxnack, Ids: options::OPT_mno_xnack)) {
5103 bool IsEnabled = A->getOption().matches(ID: options::OPT_mxnack);
5104 Opts.AMDGPUXnackState = IsEnabled
5105 ? TargetOptions::AMDGPUFeatureState::Enabled
5106 : TargetOptions::AMDGPUFeatureState::Disabled;
5107 }
5108
5109 if (Arg *A =
5110 Args.getLastArg(Ids: options::OPT_msramecc, Ids: options::OPT_mno_sramecc)) {
5111 bool IsEnabled = A->getOption().matches(ID: options::OPT_msramecc);
5112 Opts.AMDGPUSramEccState = IsEnabled
5113 ? TargetOptions::AMDGPUFeatureState::Enabled
5114 : TargetOptions::AMDGPUFeatureState::Disabled;
5115 }
5116
5117 return Diags.getNumErrors() == NumErrorsBefore;
5118}
5119
5120bool CompilerInvocation::CreateFromArgsImpl(
5121 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs,
5122 DiagnosticsEngine &Diags, const char *Argv0) {
5123 unsigned NumErrorsBefore = Diags.getNumErrors();
5124
5125 // Parse the arguments.
5126 const OptTable &Opts = getDriverOptTable();
5127 llvm::opt::Visibility VisibilityMask(options::CC1Option);
5128 unsigned MissingArgIndex, MissingArgCount;
5129 InputArgList Args = Opts.ParseArgs(Args: CommandLineArgs, MissingArgIndex,
5130 MissingArgCount, VisibilityMask);
5131 LangOptions &LangOpts = Res.getLangOpts();
5132
5133 // Check for missing argument error.
5134 if (MissingArgCount)
5135 Diags.Report(DiagID: diag::err_drv_missing_argument)
5136 << Args.getArgString(Index: MissingArgIndex) << MissingArgCount;
5137
5138 // Issue errors on unknown arguments.
5139 for (const auto *A : Args.filtered(Ids: OPT_UNKNOWN)) {
5140 auto ArgString = A->getAsString(Args);
5141 std::string Nearest;
5142 if (Opts.findNearest(Option: ArgString, NearestString&: Nearest, VisibilityMask) > 1)
5143 Diags.Report(DiagID: diag::err_drv_unknown_argument) << ArgString;
5144 else
5145 Diags.Report(DiagID: diag::err_drv_unknown_argument_with_suggestion)
5146 << ArgString << Nearest;
5147 }
5148
5149 ParseFileSystemArgs(Opts&: Res.getFileSystemOpts(), Args, Diags);
5150 ParseMigratorArgs(Opts&: Res.getMigratorOpts(), Args, Diags);
5151 ParseAnalyzerArgs(Opts&: Res.getAnalyzerOpts(), Args, Diags);
5152 ParseSSAFArgs(Opts&: Res.getSSAFOpts(), Args, Diags);
5153 ParseDiagnosticArgs(Opts&: Res.getDiagnosticOpts(), Args, Diags: &Diags);
5154 ParseFrontendArgs(Opts&: Res.getFrontendOpts(), Args, Diags, IsHeaderFile&: LangOpts.IsHeaderFile);
5155 // FIXME: We shouldn't have to pass the DashX option around here
5156 InputKind DashX = Res.getFrontendOpts().DashX;
5157 ParseTargetArgs(Opts&: Res.getTargetOpts(), Args, Diags);
5158 llvm::Triple T(Res.getTargetOpts().Triple);
5159 ParseHeaderSearchArgs(Opts&: Res.getHeaderSearchOpts(), Args, Diags);
5160 if (Res.getFrontendOpts().GenReducedBMI ||
5161 Res.getFrontendOpts().ProgramAction ==
5162 frontend::GenerateReducedModuleInterface ||
5163 Res.getFrontendOpts().ProgramAction ==
5164 frontend::GenerateModuleInterface) {
5165 Res.getHeaderSearchOpts().ModulesSkipDiagnosticOptions = true;
5166 Res.getHeaderSearchOpts().ModulesSkipHeaderSearchPaths = true;
5167 }
5168 ParseAPINotesArgs(Opts&: Res.getAPINotesOpts(), Args, diags&: Diags);
5169
5170 ParsePointerAuthArgs(Opts&: LangOpts, Args, Diags);
5171
5172 ParseLangArgs(Opts&: LangOpts, Args, IK: DashX, T, Includes&: Res.getPreprocessorOpts().Includes,
5173 Diags);
5174 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
5175 LangOpts.ObjCExceptions = 1;
5176
5177 for (auto Warning : Res.getDiagnosticOpts().Warnings) {
5178 if (Warning == "misexpect" &&
5179 !Diags.isIgnored(DiagID: diag::warn_profile_data_misexpect, Loc: SourceLocation())) {
5180 Res.getCodeGenOpts().MisExpect = true;
5181 }
5182 }
5183
5184 if (LangOpts.CUDA) {
5185 // During CUDA device-side compilation, the aux triple is the
5186 // triple used for host compilation.
5187 if (LangOpts.CUDAIsDevice)
5188 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
5189 }
5190
5191 if (LangOpts.OpenACC && !Res.getFrontendOpts().UseClangIRPipeline &&
5192 isCodeGenAction(Action: Res.getFrontendOpts().ProgramAction))
5193 Diags.Report(DiagID: diag::warn_drv_openacc_without_cir);
5194
5195 // Set the triple of the host for OpenMP device compile.
5196 if (LangOpts.OpenMPIsTargetDevice)
5197 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
5198
5199 // Set the default and host triples for SYCL device compilation.
5200 if (LangOpts.SYCLIsDevice) {
5201 if (!Args.hasArg(Ids: options::OPT_triple))
5202 Res.getTargetOpts().Triple = "spirv64-unknown-unknown";
5203 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
5204 }
5205
5206 ParseCodeGenArgs(Opts&: Res.getCodeGenOpts(), Args, IK: DashX, Diags, T,
5207 OutputFile: Res.getFrontendOpts().OutputFile, LangOptsRef: LangOpts);
5208
5209 // FIXME: Override value name discarding when asan or msan is used because the
5210 // backend passes depend on the name of the alloca in order to print out
5211 // names.
5212 Res.getCodeGenOpts().DiscardValueNames &=
5213 !LangOpts.Sanitize.has(K: SanitizerKind::Address) &&
5214 !LangOpts.Sanitize.has(K: SanitizerKind::KernelAddress) &&
5215 !LangOpts.Sanitize.has(K: SanitizerKind::Memory) &&
5216 !LangOpts.Sanitize.has(K: SanitizerKind::KernelMemory);
5217
5218 ParsePreprocessorArgs(Opts&: Res.getPreprocessorOpts(), Args, Diags,
5219 Action: Res.getFrontendOpts().ProgramAction,
5220 FrontendOpts: Res.getFrontendOpts());
5221 ParsePreprocessorOutputArgs(Opts&: Res.getPreprocessorOutputOpts(), Args, Diags,
5222 Action: Res.getFrontendOpts().ProgramAction);
5223
5224 ParseDependencyOutputArgs(Opts&: Res.getDependencyOutputOpts(), Args, Diags,
5225 Action: Res.getFrontendOpts().ProgramAction,
5226 ShowLineMarkers: Res.getPreprocessorOutputOpts().ShowLineMarkers);
5227 if (!Res.getDependencyOutputOpts().OutputFile.empty() &&
5228 Res.getDependencyOutputOpts().Targets.empty())
5229 Diags.Report(DiagID: diag::err_fe_dependency_file_requires_MT);
5230
5231 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses.
5232 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses &&
5233 !Res.getLangOpts().Sanitize.empty()) {
5234 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false;
5235 Diags.Report(DiagID: diag::warn_drv_fine_grained_bitfield_accesses_ignored);
5236 }
5237
5238 // Store the command-line for using in the CodeView backend.
5239 if (Res.getCodeGenOpts().CodeViewCommandLine) {
5240 Res.getCodeGenOpts().Argv0 = Argv0;
5241 append_range(C&: Res.getCodeGenOpts().CommandLineArgs, R&: CommandLineArgs);
5242 }
5243
5244 if (!Res.getCodeGenOpts().ProfileInstrumentUsePath.empty() &&
5245 Res.getCodeGenOpts().getProfileUse() ==
5246 llvm::driver::ProfileInstrKind::ProfileNone)
5247 Diags.Report(DiagID: diag::err_drv_profile_instrument_use_path_with_no_kind);
5248
5249 llvm::TimeTraceCompression TimeTraceCompress =
5250 Res.getFrontendOpts().TimeTraceCompress;
5251 if (TimeTraceCompress == llvm::TimeTraceCompression::Infer &&
5252 !Res.getFrontendOpts().TimeTracePath.empty())
5253 TimeTraceCompress = llvm::inferTimeTraceCompressionFromPath(
5254 Path: Res.getFrontendOpts().TimeTracePath);
5255 if (TimeTraceCompress == llvm::TimeTraceCompression::Zstd &&
5256 !llvm::compression::zstd::isAvailable())
5257 Diags.Report(DiagID: diag::err_drv_time_trace_compression_unavailable) << "zstd";
5258
5259 FixupInvocation(Invocation&: Res, Diags, Args, IK: DashX);
5260
5261 return Diags.getNumErrors() == NumErrorsBefore;
5262}
5263
5264bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation,
5265 ArrayRef<const char *> CommandLineArgs,
5266 DiagnosticsEngine &Diags,
5267 const char *Argv0) {
5268 CompilerInvocation DummyInvocation;
5269
5270 return RoundTrip(
5271 Parse: [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs,
5272 DiagnosticsEngine &Diags, const char *Argv0) {
5273 return CreateFromArgsImpl(Res&: Invocation, CommandLineArgs, Diags, Argv0);
5274 },
5275 Generate: [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args,
5276 StringAllocator SA) {
5277 Args.push_back(Elt: "-cc1");
5278 Invocation.generateCC1CommandLine(Args, SA);
5279 },
5280 RealInvocation&: Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0);
5281}
5282
5283std::string CompilerInvocation::computeContextHash() const {
5284 // FIXME: Consider using SHA1 instead of MD5.
5285 llvm::HashBuilder<llvm::MD5, llvm::endianness::native> HBuilder;
5286
5287 // Note: For QoI reasons, the things we use as a hash here should all be
5288 // dumped via the -module-info flag.
5289
5290 // Start the signature with the compiler version.
5291 HBuilder.add(Value: getClangFullRepositoryVersion());
5292
5293 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off
5294 // and getClangFullRepositoryVersion() doesn't include git revision.
5295 HBuilder.add(Args: serialization::VERSION_MAJOR, Args: serialization::VERSION_MINOR);
5296
5297 // Extend the signature with the language options
5298 const unsigned LanguageOptionValues[] = {
5299#define HASH_LANGOPT_Benign(Value)
5300#define HASH_LANGOPT_Compatible(Value) Value,
5301#define HASH_LANGOPT_NotCompatible(Value) Value,
5302#define LANGOPT(Name, Bits, Default, Compatibility, Description) \
5303 HASH_LANGOPT_##Compatibility(LangOpts->Name)
5304#define ENUM_LANGOPT(Name, Type, Bits, Default, Compatibility, Description) \
5305 HASH_LANGOPT_##Compatibility(static_cast<unsigned>(LangOpts->get##Name()))
5306#include "clang/Basic/LangOptions.def"
5307 };
5308#undef HASH_LANGOPT_Benign
5309#undef HASH_LANGOPT_Compatible
5310#undef HASH_LANGOPT_NotCompatible
5311 // addRangeElements preserves the HBuilder.add sequence and excludes the
5312 // LanguageOptionValues element count.
5313 HBuilder.addRangeElements(Range: LanguageOptionValues);
5314
5315 HBuilder.addRange(Range: getLangOpts().ModuleFeatures);
5316
5317 HBuilder.add(Value: getLangOpts().ObjCRuntime);
5318 HBuilder.addRange(Range: getLangOpts().CommentOpts.BlockCommandNames);
5319 HBuilder.add(Value: getLangOpts().CommentOpts.RetainCommentsFromSystemHeaders);
5320
5321 // Extend the signature with the target options.
5322 HBuilder.add(Args: getTargetOpts().Triple, Args: getTargetOpts().CPU,
5323 Args: getTargetOpts().TuneCPU, Args: getTargetOpts().ABI);
5324 HBuilder.addRange(Range: getTargetOpts().FeaturesAsWritten);
5325
5326 // Extend the signature with preprocessor options.
5327 const PreprocessorOptions &ppOpts = getPreprocessorOpts();
5328 HBuilder.add(Args: ppOpts.UsePredefines, Args: ppOpts.DetailedRecord);
5329
5330 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts();
5331 for (const auto &Macro : getPreprocessorOpts().Macros) {
5332 // If we're supposed to ignore this macro for the purposes of modules,
5333 // don't put it into the hash.
5334 if (!hsOpts.ModulesIgnoreMacros.empty()) {
5335 // Check whether we're ignoring this macro.
5336 StringRef MacroDef = Macro.first;
5337 if (hsOpts.ModulesIgnoreMacros.count(
5338 key: llvm::CachedHashString(MacroDef.split(Separator: '=').first)))
5339 continue;
5340 }
5341
5342 HBuilder.add(Value: Macro);
5343 }
5344
5345 // Extend the signature with the sysroot and other header search options.
5346 HBuilder.add(Args: hsOpts.Sysroot, Args: hsOpts.ModuleFormat, Args: hsOpts.UseDebugInfo,
5347 Args: hsOpts.UseBuiltinIncludes, Args: hsOpts.UseStandardSystemIncludes,
5348 Args: hsOpts.UseStandardCXXIncludes, Args: hsOpts.UseLibcxx,
5349 Args: hsOpts.ModulesValidateDiagnosticOptions);
5350 HBuilder.add(Value: hsOpts.ResourceDir);
5351
5352 if (hsOpts.ModulesStrictContextHash) {
5353 HBuilder.addRange(Range: hsOpts.SystemHeaderPrefixes);
5354
5355 for (const auto &UserEntry : hsOpts.UserEntries) {
5356 // If we're supposed to ignore this search path for the purposes of
5357 // modules, don't put it into the hash.
5358 if (!hsOpts.ModulesIgnoreSearchPaths.empty()) {
5359 // Check whether we're ignoring this search path.
5360 StringRef Path = UserEntry.Path;
5361 if (hsOpts.ModulesIgnoreSearchPaths.count(key: llvm::CachedHashString(Path)))
5362 continue;
5363 }
5364
5365 HBuilder.add(Value: UserEntry);
5366 }
5367
5368 HBuilder.addRange(Range: getFrontendOpts().ModuleMapFiles);
5369
5370 HBuilder.addRange(Range: hsOpts.VFSOverlayFiles);
5371
5372 const DiagnosticOptions &diagOpts = getDiagnosticOpts();
5373#define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name);
5374#define ENUM_DIAGOPT(Name, Type, Bits, Default) \
5375 HBuilder.add(diagOpts.get##Name());
5376#include "clang/Basic/DiagnosticOptions.def"
5377#undef DIAGOPT
5378#undef ENUM_DIAGOPT
5379 }
5380
5381 // Extend the signature with the user build path.
5382 HBuilder.add(Value: hsOpts.ModuleUserBuildPath);
5383
5384 // Extend the signature with the module file extensions.
5385 for (const auto &ext : getFrontendOpts().ModuleFileExtensions)
5386 ext->hashExtension(HBuilder);
5387
5388 // Extend the signature with the Swift version for API notes.
5389 const APINotesOptions &APINotesOpts = getAPINotesOpts();
5390 if (!APINotesOpts.SwiftVersion.empty()) {
5391 HBuilder.add(Value: APINotesOpts.SwiftVersion.getMajor());
5392 if (auto Minor = APINotesOpts.SwiftVersion.getMinor())
5393 HBuilder.add(Value: *Minor);
5394 if (auto Subminor = APINotesOpts.SwiftVersion.getSubminor())
5395 HBuilder.add(Value: *Subminor);
5396 if (auto Build = APINotesOpts.SwiftVersion.getBuild())
5397 HBuilder.add(Value: *Build);
5398 }
5399
5400 // Extend the signature with affecting codegen options.
5401 {
5402 using CK = CodeGenOptions::CompatibilityKind;
5403#define CODEGENOPT(Name, Bits, Default, Compatibility) \
5404 if constexpr (CK::Compatibility != CK::Benign) \
5405 HBuilder.add(CodeGenOpts->Name);
5406#define ENUM_CODEGENOPT(Name, Type, Bits, Default, Compatibility) \
5407 if constexpr (CK::Compatibility != CK::Benign) \
5408 HBuilder.add(static_cast<unsigned>(CodeGenOpts->get##Name()));
5409#define DEBUGOPT(Name, Bits, Default, Compatibility)
5410#define VALUE_DEBUGOPT(Name, Bits, Default, Compatibility)
5411#define ENUM_DEBUGOPT(Name, Type, Bits, Default, Compatibility)
5412#include "clang/Basic/CodeGenOptions.def"
5413 }
5414
5415 // When compiling with -gmodules, also hash -fdebug-prefix-map as it
5416 // affects the debug info in the PCM.
5417 if (getCodeGenOpts().DebugTypeExtRefs)
5418 HBuilder.addRange(Range: getCodeGenOpts().DebugPrefixMap);
5419
5420 // Extend the signature with the affecting debug options.
5421 if (getHeaderSearchOpts().ModuleFormat == "obj") {
5422 // FIXME: Replace with C++20 `using enum CodeGenOptions::CompatibilityKind`.
5423 using CK = CodeGenOptions::CompatibilityKind;
5424#define DEBUGOPT(Name, Bits, Default, Compatibility) \
5425 if constexpr (CK::Compatibility != CK::Benign) \
5426 HBuilder.add(CodeGenOpts->Name);
5427#define VALUE_DEBUGOPT(Name, Bits, Default, Compatibility) \
5428 if constexpr (CK::Compatibility != CK::Benign) \
5429 HBuilder.add(CodeGenOpts->Name);
5430#define ENUM_DEBUGOPT(Name, Type, Bits, Default, Compatibility) \
5431 if constexpr (CK::Compatibility != CK::Benign) \
5432 HBuilder.add(static_cast<unsigned>(CodeGenOpts->get##Name()));
5433#include "clang/Basic/DebugOptions.def"
5434 }
5435
5436 // Extend the signature with the enabled sanitizers, if at least one is
5437 // enabled. Sanitizers which cannot affect AST generation aren't hashed.
5438 SanitizerSet SanHash = getLangOpts().Sanitize;
5439 SanHash.clear(K: getPPTransparentSanitizers());
5440 if (!SanHash.empty())
5441 HBuilder.add(Value: SanHash.Mask);
5442
5443 llvm::MD5::MD5Result Result;
5444 HBuilder.getHasher().final(Result);
5445 uint64_t Hash = Result.high() ^ Result.low();
5446 return toString(I: llvm::APInt(64, Hash), Radix: 36, /*Signed=*/false);
5447}
5448
5449void CowCompilerInvocation::visitMutPaths(
5450 llvm::function_ref<VisitMutResult(StringRef, std::string &)> Cb) {
5451 std::string NewValue;
5452
5453#define RETURN_IF(OPTS, PATH) \
5454 do { \
5455 VisitMutResult Res = Cb(PATH, NewValue); \
5456 if (Res.Replace) { \
5457 (void)ensureOwned(OPTS); \
5458 PATH.clear(); \
5459 std::swap(PATH, NewValue); \
5460 } \
5461 if (Res.Terminate) \
5462 return; \
5463 } while (0)
5464
5465#define RETURN_IF_MANY(OPTS, PATHS) \
5466 do { \
5467 for (unsigned I = 0, E = PATHS.size(); I != E; ++I) \
5468 RETURN_IF(OPTS, PATHS[I]); \
5469 } while (0)
5470
5471 // Header search paths.
5472 RETURN_IF(HSOpts, HSOpts->Sysroot);
5473 for (auto &Entry : HSOpts->UserEntries)
5474 if (Entry.IgnoreSysRoot)
5475 RETURN_IF(HSOpts, Entry.Path);
5476 RETURN_IF(HSOpts, HSOpts->ResourceDir);
5477 RETURN_IF(HSOpts, HSOpts->ModuleCachePath);
5478 RETURN_IF(HSOpts, HSOpts->ModuleUserBuildPath);
5479 for (auto &[Name, File] : HSOpts->PrebuiltModuleFiles)
5480 RETURN_IF(HSOpts, File);
5481 RETURN_IF_MANY(HSOpts, HSOpts->PrebuiltModulePaths);
5482 RETURN_IF_MANY(HSOpts, HSOpts->VFSOverlayFiles);
5483
5484 // Preprocessor options.
5485 RETURN_IF_MANY(PPOpts, PPOpts->MacroIncludes);
5486 RETURN_IF_MANY(PPOpts, PPOpts->Includes);
5487 RETURN_IF(PPOpts, PPOpts->ImplicitPCHInclude);
5488
5489 // Frontend options.
5490 for (auto &Input : FrontendOpts->Inputs) {
5491 if (Input.isBuffer())
5492 continue;
5493
5494 RETURN_IF(FrontendOpts, Input.File);
5495 }
5496 // TODO: Also report output files such as FrontendOpts->OutputFile;
5497 RETURN_IF(FrontendOpts, FrontendOpts->CodeCompletionAt.FileName);
5498 RETURN_IF_MANY(FrontendOpts, FrontendOpts->ModuleMapFiles);
5499 RETURN_IF_MANY(FrontendOpts, FrontendOpts->ModuleFiles);
5500 RETURN_IF_MANY(FrontendOpts, FrontendOpts->ModulesEmbedFiles);
5501 RETURN_IF_MANY(FrontendOpts, FrontendOpts->ASTMergeFiles);
5502 RETURN_IF(FrontendOpts, FrontendOpts->OverrideRecordLayoutsFile);
5503 RETURN_IF(FrontendOpts, FrontendOpts->StatsFile);
5504
5505 // Filesystem options.
5506 RETURN_IF(FSOpts, FSOpts->WorkingDir);
5507
5508 // Codegen options.
5509 RETURN_IF(CodeGenOpts, CodeGenOpts->DebugCompilationDir);
5510 RETURN_IF(CodeGenOpts, CodeGenOpts->CoverageCompilationDir);
5511
5512 // Sanitizer options.
5513 RETURN_IF_MANY(LangOpts, LangOpts->NoSanitizeFiles);
5514
5515 // Coverage mappings.
5516 RETURN_IF(CodeGenOpts, CodeGenOpts->ProfileInstrumentUsePath);
5517 RETURN_IF(CodeGenOpts, CodeGenOpts->SampleProfileFile);
5518 RETURN_IF(CodeGenOpts, CodeGenOpts->ProfileRemappingFile);
5519
5520 // Dependency output options.
5521 for (auto &ExtraDep : DependencyOutputOpts->ExtraDeps)
5522 RETURN_IF(DependencyOutputOpts, ExtraDep.first);
5523}
5524
5525void CowCompilerInvocation::visitPaths(
5526 llvm::function_ref<VisitConstResult(StringRef)> Cb) const {
5527 // The const_cast here is OK, because our callback never tries to modify.
5528 return const_cast<CowCompilerInvocation *>(this)->visitMutPaths(
5529 Cb: [&Cb](StringRef Path, std::string &) { return Cb(Path); });
5530}
5531
5532void CompilerInvocationBase::generateCC1CommandLine(
5533 ArgumentConsumer Consumer) const {
5534 llvm::Triple T(getTargetOpts().Triple);
5535
5536 GenerateFileSystemArgs(Opts: getFileSystemOpts(), Consumer);
5537 GenerateMigratorArgs(Opts: getMigratorOpts(), Consumer);
5538 GenerateAnalyzerArgs(Opts: getAnalyzerOpts(), Consumer);
5539 GenerateSSAFArgs(Opts: getSSAFOpts(), Consumer);
5540 GenerateDiagnosticArgs(Opts: getDiagnosticOpts(), Consumer,
5541 /*DefaultDiagColor=*/false);
5542 GenerateFrontendArgs(Opts: getFrontendOpts(), Consumer, IsHeader: getLangOpts().IsHeaderFile);
5543 GenerateTargetArgs(Opts: getTargetOpts(), Consumer);
5544 GenerateHeaderSearchArgs(Opts: getHeaderSearchOpts(), Consumer);
5545 GenerateAPINotesArgs(Opts: getAPINotesOpts(), Consumer);
5546 GeneratePointerAuthArgs(Opts: getLangOpts(), Consumer);
5547 GenerateLangArgs(Opts: getLangOpts(), Consumer, T, IK: getFrontendOpts().DashX);
5548 GenerateCodeGenArgs(Opts: getCodeGenOpts(), Consumer, T,
5549 OutputFile: getFrontendOpts().OutputFile, LangOpts: &getLangOpts());
5550 GeneratePreprocessorArgs(Opts: getPreprocessorOpts(), Consumer, LangOpts: getLangOpts(),
5551 FrontendOpts: getFrontendOpts(), CodeGenOpts: getCodeGenOpts());
5552 GeneratePreprocessorOutputArgs(Opts: getPreprocessorOutputOpts(), Consumer,
5553 Action: getFrontendOpts().ProgramAction);
5554 GenerateDependencyOutputArgs(Opts: getDependencyOutputOpts(), Consumer);
5555}
5556
5557std::vector<std::string> CompilerInvocationBase::getCC1CommandLine() const {
5558 std::vector<std::string> Args{"-cc1"};
5559 generateCC1CommandLine(
5560 Consumer: [&Args](const Twine &Arg) { Args.push_back(x: Arg.str()); });
5561 return Args;
5562}
5563
5564void CompilerInvocation::resetNonModularOptions() {
5565 getLangOpts().resetNonModularOptions();
5566 getPreprocessorOpts().resetNonModularOptions();
5567 getCodeGenOpts().resetNonModularOptions(ModuleFormat: getHeaderSearchOpts().ModuleFormat);
5568}
5569
5570void CompilerInvocation::clearImplicitModuleBuildOptions() {
5571 getLangOpts().ImplicitModules = false;
5572 getHeaderSearchOpts().ImplicitModuleMaps = false;
5573 getHeaderSearchOpts().ModuleCachePath.clear();
5574 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false;
5575 getHeaderSearchOpts().ModulesValidateDirectoryDependencies = false;
5576 getHeaderSearchOpts().BuildSessionTimestamp = 0;
5577 // The specific values we canonicalize to for pruning don't affect behaviour,
5578 /// so use the default values so they may be dropped from the command-line.
5579 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60;
5580 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60;
5581}
5582
5583IntrusiveRefCntPtr<llvm::vfs::FileSystem>
5584clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI,
5585 DiagnosticsEngine &Diags) {
5586 return createVFSFromCompilerInvocation(CI, Diags,
5587 BaseFS: llvm::vfs::getRealFileSystem());
5588}
5589
5590IntrusiveRefCntPtr<llvm::vfs::FileSystem>
5591clang::createVFSFromCompilerInvocation(
5592 const CompilerInvocation &CI, DiagnosticsEngine &Diags,
5593 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) {
5594 return createVFSFromOverlayFiles(VFSOverlayFiles: CI.getHeaderSearchOpts().VFSOverlayFiles,
5595 Diags, BaseFS: std::move(BaseFS));
5596}
5597
5598IntrusiveRefCntPtr<llvm::vfs::FileSystem> clang::createVFSFromOverlayFiles(
5599 ArrayRef<std::string> VFSOverlayFiles, DiagnosticsEngine &Diags,
5600 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) {
5601 if (VFSOverlayFiles.empty())
5602 return BaseFS;
5603
5604 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS;
5605 // earlier vfs files are on the bottom
5606 for (const auto &File : VFSOverlayFiles) {
5607 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer =
5608 Result->getBufferForFile(Name: File);
5609 if (!Buffer) {
5610 Diags.Report(DiagID: diag::err_missing_vfs_overlay_file) << File;
5611 continue;
5612 }
5613
5614 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML(
5615 Buffer: std::move(Buffer.get()), /*DiagHandler*/ nullptr, YAMLFilePath: File,
5616 /*DiagContext*/ nullptr, ExternalFS: Result);
5617 if (!FS) {
5618 Diags.Report(DiagID: diag::err_invalid_vfs_overlay) << File;
5619 continue;
5620 }
5621
5622 Result = FS;
5623 }
5624 return Result;
5625}
5626