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/DiagnosticOptions.h"
18#include "clang/Basic/FileSystemOptions.h"
19#include "clang/Basic/LLVM.h"
20#include "clang/Basic/LangOptions.h"
21#include "clang/Basic/LangStandard.h"
22#include "clang/Basic/ObjCRuntime.h"
23#include "clang/Basic/Sanitizers.h"
24#include "clang/Basic/SourceLocation.h"
25#include "clang/Basic/TargetOptions.h"
26#include "clang/Basic/Version.h"
27#include "clang/Basic/XRayInstr.h"
28#include "clang/Config/config.h"
29#include "clang/Driver/Driver.h"
30#include "clang/Driver/Options.h"
31#include "clang/Frontend/CommandLineSourceLoc.h"
32#include "clang/Frontend/DependencyOutputOptions.h"
33#include "clang/Frontend/FrontendDiagnostic.h"
34#include "clang/Frontend/FrontendOptions.h"
35#include "clang/Frontend/MigratorOptions.h"
36#include "clang/Frontend/PreprocessorOutputOptions.h"
37#include "clang/Frontend/TextDiagnosticBuffer.h"
38#include "clang/Frontend/Utils.h"
39#include "clang/Lex/HeaderSearchOptions.h"
40#include "clang/Lex/PreprocessorOptions.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 driver;
100using namespace options;
101using namespace llvm::opt;
102
103//===----------------------------------------------------------------------===//
104// Helpers.
105//===----------------------------------------------------------------------===//
106
107// Parse misexpect tolerance argument value.
108// Valid option values are integers in the range [0, 100)
109static Expected<std::optional<uint32_t>> parseToleranceOption(StringRef Arg) {
110 uint32_t Val;
111 if (Arg.getAsInteger(Radix: 10, Result&: Val))
112 return llvm::createStringError(EC: llvm::inconvertibleErrorCode(),
113 Fmt: "Not an integer: %s", Vals: Arg.data());
114 return Val;
115}
116
117//===----------------------------------------------------------------------===//
118// Initialization.
119//===----------------------------------------------------------------------===//
120
121template <class T> std::shared_ptr<T> make_shared_copy(const T &X) {
122 return std::make_shared<T>(X);
123}
124
125CompilerInvocationBase::CompilerInvocationBase()
126 : LangOpts(std::make_shared<LangOptions>()),
127 TargetOpts(std::make_shared<TargetOptions>()),
128 DiagnosticOpts(std::make_shared<DiagnosticOptions>()),
129 HSOpts(std::make_shared<HeaderSearchOptions>()),
130 PPOpts(std::make_shared<PreprocessorOptions>()),
131 AnalyzerOpts(std::make_shared<AnalyzerOptions>()),
132 MigratorOpts(std::make_shared<MigratorOptions>()),
133 APINotesOpts(std::make_shared<APINotesOptions>()),
134 CodeGenOpts(std::make_shared<CodeGenOptions>()),
135 FSOpts(std::make_shared<FileSystemOptions>()),
136 FrontendOpts(std::make_shared<FrontendOptions>()),
137 DependencyOutputOpts(std::make_shared<DependencyOutputOptions>()),
138 PreprocessorOutputOpts(std::make_shared<PreprocessorOutputOptions>()) {}
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 }
157 return *this;
158}
159
160CompilerInvocationBase &
161CompilerInvocationBase::shallow_copy_assign(const CompilerInvocationBase &X) {
162 if (this != &X) {
163 LangOpts = X.LangOpts;
164 TargetOpts = X.TargetOpts;
165 DiagnosticOpts = X.DiagnosticOpts;
166 HSOpts = X.HSOpts;
167 PPOpts = X.PPOpts;
168 AnalyzerOpts = X.AnalyzerOpts;
169 MigratorOpts = X.MigratorOpts;
170 APINotesOpts = X.APINotesOpts;
171 CodeGenOpts = X.CodeGenOpts;
172 FSOpts = X.FSOpts;
173 FrontendOpts = X.FrontendOpts;
174 DependencyOutputOpts = X.DependencyOutputOpts;
175 PreprocessorOutputOpts = X.PreprocessorOutputOpts;
176 }
177 return *this;
178}
179
180CompilerInvocation::CompilerInvocation(const CowCompilerInvocation &X)
181 : CompilerInvocationBase(EmptyConstructor{}) {
182 CompilerInvocationBase::deep_copy_assign(X);
183}
184
185CompilerInvocation &
186CompilerInvocation::operator=(const CowCompilerInvocation &X) {
187 CompilerInvocationBase::deep_copy_assign(X);
188 return *this;
189}
190
191template <typename T>
192T &ensureOwned(std::shared_ptr<T> &Storage) {
193 if (Storage.use_count() > 1)
194 Storage = std::make_shared<T>(*Storage);
195 return *Storage;
196}
197
198LangOptions &CowCompilerInvocation::getMutLangOpts() {
199 return ensureOwned(Storage&: LangOpts);
200}
201
202TargetOptions &CowCompilerInvocation::getMutTargetOpts() {
203 return ensureOwned(Storage&: TargetOpts);
204}
205
206DiagnosticOptions &CowCompilerInvocation::getMutDiagnosticOpts() {
207 return ensureOwned(Storage&: DiagnosticOpts);
208}
209
210HeaderSearchOptions &CowCompilerInvocation::getMutHeaderSearchOpts() {
211 return ensureOwned(Storage&: HSOpts);
212}
213
214PreprocessorOptions &CowCompilerInvocation::getMutPreprocessorOpts() {
215 return ensureOwned(Storage&: PPOpts);
216}
217
218AnalyzerOptions &CowCompilerInvocation::getMutAnalyzerOpts() {
219 return ensureOwned(Storage&: AnalyzerOpts);
220}
221
222MigratorOptions &CowCompilerInvocation::getMutMigratorOpts() {
223 return ensureOwned(Storage&: MigratorOpts);
224}
225
226APINotesOptions &CowCompilerInvocation::getMutAPINotesOpts() {
227 return ensureOwned(Storage&: APINotesOpts);
228}
229
230CodeGenOptions &CowCompilerInvocation::getMutCodeGenOpts() {
231 return ensureOwned(Storage&: CodeGenOpts);
232}
233
234FileSystemOptions &CowCompilerInvocation::getMutFileSystemOpts() {
235 return ensureOwned(Storage&: FSOpts);
236}
237
238FrontendOptions &CowCompilerInvocation::getMutFrontendOpts() {
239 return ensureOwned(Storage&: FrontendOpts);
240}
241
242DependencyOutputOptions &CowCompilerInvocation::getMutDependencyOutputOpts() {
243 return ensureOwned(Storage&: DependencyOutputOpts);
244}
245
246PreprocessorOutputOptions &
247CowCompilerInvocation::getMutPreprocessorOutputOpts() {
248 return ensureOwned(Storage&: PreprocessorOutputOpts);
249}
250
251//===----------------------------------------------------------------------===//
252// Normalizers
253//===----------------------------------------------------------------------===//
254
255using ArgumentConsumer = CompilerInvocation::ArgumentConsumer;
256
257#define OPTTABLE_STR_TABLE_CODE
258#include "clang/Driver/Options.inc"
259#undef OPTTABLE_STR_TABLE_CODE
260
261static llvm::StringRef lookupStrInTable(unsigned Offset) {
262 return OptionStrTable[Offset];
263}
264
265#define SIMPLE_ENUM_VALUE_TABLE
266#include "clang/Driver/Options.inc"
267#undef SIMPLE_ENUM_VALUE_TABLE
268
269static std::optional<bool> normalizeSimpleFlag(OptSpecifier Opt,
270 unsigned TableIndex,
271 const ArgList &Args,
272 DiagnosticsEngine &Diags) {
273 if (Args.hasArg(Ids: Opt))
274 return true;
275 return std::nullopt;
276}
277
278static std::optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt,
279 unsigned,
280 const ArgList &Args,
281 DiagnosticsEngine &) {
282 if (Args.hasArg(Ids: Opt))
283 return false;
284 return std::nullopt;
285}
286
287/// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but
288/// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with
289/// unnecessary template instantiations and just ignore it with a variadic
290/// argument.
291static void denormalizeSimpleFlag(ArgumentConsumer Consumer,
292 unsigned SpellingOffset, Option::OptionClass,
293 unsigned, /*T*/...) {
294 Consumer(lookupStrInTable(Offset: SpellingOffset));
295}
296static void denormalizeSimpleFlag(ArgumentConsumer Consumer,
297 const Twine &Spelling, Option::OptionClass,
298 unsigned, /*T*/...) {
299 Consumer(Spelling);
300}
301
302template <typename T> static constexpr bool is_uint64_t_convertible() {
303 return !std::is_same_v<T, uint64_t> && llvm::is_integral_or_enum<T>::value;
304}
305
306template <typename T,
307 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false>
308static auto makeFlagToValueNormalizer(T Value) {
309 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args,
310 DiagnosticsEngine &) -> std::optional<T> {
311 if (Args.hasArg(Ids: Opt))
312 return Value;
313 return std::nullopt;
314 };
315}
316
317template <typename T,
318 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false>
319static auto makeFlagToValueNormalizer(T Value) {
320 return makeFlagToValueNormalizer(Value: uint64_t(Value));
321}
322
323static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue,
324 OptSpecifier OtherOpt) {
325 return [Value, OtherValue,
326 OtherOpt](OptSpecifier Opt, unsigned, const ArgList &Args,
327 DiagnosticsEngine &) -> std::optional<bool> {
328 if (const Arg *A = Args.getLastArg(Ids: Opt, Ids: OtherOpt)) {
329 return A->getOption().matches(ID: Opt) ? Value : OtherValue;
330 }
331 return std::nullopt;
332 };
333}
334
335static auto makeBooleanOptionDenormalizer(bool Value) {
336 return [Value](ArgumentConsumer Consumer, unsigned SpellingOffset,
337 Option::OptionClass, unsigned, bool KeyPath) {
338 if (KeyPath == Value)
339 Consumer(lookupStrInTable(Offset: SpellingOffset));
340 };
341}
342
343static void denormalizeStringImpl(ArgumentConsumer Consumer,
344 const Twine &Spelling,
345 Option::OptionClass OptClass, unsigned,
346 const Twine &Value) {
347 switch (OptClass) {
348 case Option::SeparateClass:
349 case Option::JoinedOrSeparateClass:
350 case Option::JoinedAndSeparateClass:
351 Consumer(Spelling);
352 Consumer(Value);
353 break;
354 case Option::JoinedClass:
355 case Option::CommaJoinedClass:
356 Consumer(Spelling + Value);
357 break;
358 default:
359 llvm_unreachable("Cannot denormalize an option with option class "
360 "incompatible with string denormalization.");
361 }
362}
363
364template <typename T>
365static void
366denormalizeString(ArgumentConsumer Consumer, unsigned SpellingOffset,
367 Option::OptionClass OptClass, unsigned TableIndex, T Value) {
368 denormalizeStringImpl(Consumer, Spelling: lookupStrInTable(Offset: SpellingOffset), OptClass,
369 TableIndex, Value: Twine(Value));
370}
371
372template <typename T>
373static void denormalizeString(ArgumentConsumer Consumer, const Twine &Spelling,
374 Option::OptionClass OptClass, unsigned TableIndex,
375 T Value) {
376 denormalizeStringImpl(Consumer, Spelling, OptClass, TableIndex, Value: Twine(Value));
377}
378
379static std::optional<SimpleEnumValue>
380findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) {
381 for (int I = 0, E = Table.Size; I != E; ++I)
382 if (Name == Table.Table[I].Name)
383 return Table.Table[I];
384
385 return std::nullopt;
386}
387
388static std::optional<SimpleEnumValue>
389findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) {
390 for (int I = 0, E = Table.Size; I != E; ++I)
391 if (Value == Table.Table[I].Value)
392 return Table.Table[I];
393
394 return std::nullopt;
395}
396
397static std::optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt,
398 unsigned TableIndex,
399 const ArgList &Args,
400 DiagnosticsEngine &Diags) {
401 assert(TableIndex < SimpleEnumValueTablesSize);
402 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex];
403
404 auto *Arg = Args.getLastArg(Ids: Opt);
405 if (!Arg)
406 return std::nullopt;
407
408 StringRef ArgValue = Arg->getValue();
409 if (auto MaybeEnumVal = findValueTableByName(Table, Name: ArgValue))
410 return MaybeEnumVal->Value;
411
412 Diags.Report(DiagID: diag::err_drv_invalid_value)
413 << Arg->getAsString(Args) << ArgValue;
414 return std::nullopt;
415}
416
417static void denormalizeSimpleEnumImpl(ArgumentConsumer Consumer,
418 unsigned SpellingOffset,
419 Option::OptionClass OptClass,
420 unsigned TableIndex, unsigned Value) {
421 assert(TableIndex < SimpleEnumValueTablesSize);
422 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex];
423 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) {
424 denormalizeString(Consumer, Spelling: lookupStrInTable(Offset: SpellingOffset), OptClass,
425 TableIndex, Value: MaybeEnumVal->Name);
426 } else {
427 llvm_unreachable("The simple enum value was not correctly defined in "
428 "the tablegen option description");
429 }
430}
431
432template <typename T>
433static void denormalizeSimpleEnum(ArgumentConsumer Consumer,
434 unsigned SpellingOffset,
435 Option::OptionClass OptClass,
436 unsigned TableIndex, T Value) {
437 return denormalizeSimpleEnumImpl(Consumer, SpellingOffset, OptClass,
438 TableIndex, Value: static_cast<unsigned>(Value));
439}
440
441static std::optional<std::string> normalizeString(OptSpecifier Opt,
442 int TableIndex,
443 const ArgList &Args,
444 DiagnosticsEngine &Diags) {
445 auto *Arg = Args.getLastArg(Ids: Opt);
446 if (!Arg)
447 return std::nullopt;
448 return std::string(Arg->getValue());
449}
450
451template <typename IntTy>
452static std::optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int,
453 const ArgList &Args,
454 DiagnosticsEngine &Diags) {
455 auto *Arg = Args.getLastArg(Ids: Opt);
456 if (!Arg)
457 return std::nullopt;
458 IntTy Res;
459 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) {
460 Diags.Report(DiagID: diag::err_drv_invalid_int_value)
461 << Arg->getAsString(Args) << Arg->getValue();
462 return std::nullopt;
463 }
464 return Res;
465}
466
467static std::optional<std::vector<std::string>>
468normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args,
469 DiagnosticsEngine &) {
470 return Args.getAllArgValues(Id: Opt);
471}
472
473static void denormalizeStringVector(ArgumentConsumer Consumer,
474 unsigned SpellingOffset,
475 Option::OptionClass OptClass,
476 unsigned TableIndex,
477 const std::vector<std::string> &Values) {
478 switch (OptClass) {
479 case Option::CommaJoinedClass: {
480 std::string CommaJoinedValue;
481 if (!Values.empty()) {
482 CommaJoinedValue.append(str: Values.front());
483 for (const std::string &Value : llvm::drop_begin(RangeOrContainer: Values, N: 1)) {
484 CommaJoinedValue.append(s: ",");
485 CommaJoinedValue.append(str: Value);
486 }
487 }
488 denormalizeString(Consumer, SpellingOffset,
489 OptClass: Option::OptionClass::JoinedClass, TableIndex,
490 Value: CommaJoinedValue);
491 break;
492 }
493 case Option::JoinedClass:
494 case Option::SeparateClass:
495 case Option::JoinedOrSeparateClass:
496 for (const std::string &Value : Values)
497 denormalizeString(Consumer, SpellingOffset, OptClass, TableIndex, Value);
498 break;
499 default:
500 llvm_unreachable("Cannot denormalize an option with option class "
501 "incompatible with string vector denormalization.");
502 }
503}
504
505static std::optional<std::string> normalizeTriple(OptSpecifier Opt,
506 int TableIndex,
507 const ArgList &Args,
508 DiagnosticsEngine &Diags) {
509 auto *Arg = Args.getLastArg(Ids: Opt);
510 if (!Arg)
511 return std::nullopt;
512 return llvm::Triple::normalize(Str: Arg->getValue());
513}
514
515template <typename T, typename U>
516static T mergeForwardValue(T KeyPath, U Value) {
517 return static_cast<T>(Value);
518}
519
520template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) {
521 return KeyPath | Value;
522}
523
524template <typename T> static T extractForwardValue(T KeyPath) {
525 return KeyPath;
526}
527
528template <typename T, typename U, U Value>
529static T extractMaskValue(T KeyPath) {
530 return ((KeyPath & Value) == Value) ? static_cast<T>(Value) : T();
531}
532
533#define PARSE_OPTION_WITH_MARSHALLING( \
534 ARGS, DIAGS, PREFIX_TYPE, SPELLING_OFFSET, ID, KIND, GROUP, ALIAS, \
535 ALIASARGS, FLAGS, VISIBILITY, PARAM, HELPTEXT, HELPTEXTSFORVARIANTS, \
536 METAVAR, VALUES, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \
537 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, \
538 TABLE_INDEX) \
539 if ((VISIBILITY) & options::CC1Option) { \
540 KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \
541 if (IMPLIED_CHECK) \
542 KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \
543 if (SHOULD_PARSE) \
544 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \
545 KEYPATH = \
546 MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \
547 }
548
549// Capture the extracted value as a lambda argument to avoid potential issues
550// with lifetime extension of the reference.
551#define GENERATE_OPTION_WITH_MARSHALLING( \
552 CONSUMER, PREFIX_TYPE, SPELLING_OFFSET, ID, KIND, GROUP, ALIAS, ALIASARGS, \
553 FLAGS, VISIBILITY, PARAM, HELPTEXT, HELPTEXTSFORVARIANTS, METAVAR, VALUES, \
554 SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, IMPLIED_CHECK, \
555 IMPLIED_VALUE, NORMALIZER, DENORMALIZER, MERGER, EXTRACTOR, TABLE_INDEX) \
556 if ((VISIBILITY) & options::CC1Option) { \
557 [&](const auto &Extracted) { \
558 if (ALWAYS_EMIT || \
559 (Extracted != \
560 static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \
561 : (DEFAULT_VALUE)))) \
562 DENORMALIZER(CONSUMER, SPELLING_OFFSET, Option::KIND##Class, \
563 TABLE_INDEX, Extracted); \
564 }(EXTRACTOR(KEYPATH)); \
565 }
566
567static StringRef GetInputKindName(InputKind IK);
568
569static bool FixupInvocation(CompilerInvocation &Invocation,
570 DiagnosticsEngine &Diags, const ArgList &Args,
571 InputKind IK) {
572 unsigned NumErrorsBefore = Diags.getNumErrors();
573
574 LangOptions &LangOpts = Invocation.getLangOpts();
575 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts();
576 TargetOptions &TargetOpts = Invocation.getTargetOpts();
577 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts();
578 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument;
579 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents;
580 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents;
581 CodeGenOpts.DisableFree = FrontendOpts.DisableFree;
582 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex;
583 if (FrontendOpts.ShowStats)
584 CodeGenOpts.ClearASTBeforeBackend = false;
585 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage();
586 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables;
587 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening;
588 LangOpts.CurrentModule = LangOpts.ModuleName;
589
590 llvm::Triple T(TargetOpts.Triple);
591 llvm::Triple::ArchType Arch = T.getArch();
592
593 CodeGenOpts.CodeModel = TargetOpts.CodeModel;
594 CodeGenOpts.LargeDataThreshold = TargetOpts.LargeDataThreshold;
595
596 if (LangOpts.getExceptionHandling() !=
597 LangOptions::ExceptionHandlingKind::None &&
598 T.isWindowsMSVCEnvironment())
599 Diags.Report(DiagID: diag::err_fe_invalid_exception_model)
600 << static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str();
601
602 if (LangOpts.AppleKext && !LangOpts.CPlusPlus)
603 Diags.Report(DiagID: diag::warn_c_kext);
604
605 if (LangOpts.NewAlignOverride &&
606 !llvm::isPowerOf2_32(Value: LangOpts.NewAlignOverride)) {
607 Arg *A = Args.getLastArg(Ids: OPT_fnew_alignment_EQ);
608 Diags.Report(DiagID: diag::err_fe_invalid_alignment)
609 << A->getAsString(Args) << A->getValue();
610 LangOpts.NewAlignOverride = 0;
611 }
612
613 // The -f[no-]raw-string-literals option is only valid in C and in C++
614 // standards before C++11.
615 if (LangOpts.CPlusPlus11) {
616 if (Args.hasArg(Ids: OPT_fraw_string_literals, Ids: OPT_fno_raw_string_literals)) {
617 Args.claimAllArgs(Ids: OPT_fraw_string_literals, Ids: OPT_fno_raw_string_literals);
618 Diags.Report(DiagID: diag::warn_drv_fraw_string_literals_in_cxx11)
619 << bool(LangOpts.RawStringLiterals);
620 }
621
622 // Do not allow disabling raw string literals in C++11 or later.
623 LangOpts.RawStringLiterals = true;
624 }
625
626 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host.
627 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost)
628 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device"
629 << "-fsycl-is-host";
630
631 if (Args.hasArg(Ids: OPT_fgnu89_inline) && LangOpts.CPlusPlus)
632 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
633 << "-fgnu89-inline" << GetInputKindName(IK);
634
635 if (Args.hasArg(Ids: OPT_hlsl_entrypoint) && !LangOpts.HLSL)
636 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
637 << "-hlsl-entry" << GetInputKindName(IK);
638
639 if (Args.hasArg(Ids: OPT_fdx_rootsignature_version) && !LangOpts.HLSL)
640 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
641 << "-fdx-rootsignature-version" << GetInputKindName(IK);
642
643 if (Args.hasArg(Ids: OPT_fgpu_allow_device_init) && !LangOpts.HIP)
644 Diags.Report(DiagID: diag::warn_ignored_hip_only_option)
645 << Args.getLastArg(Ids: OPT_fgpu_allow_device_init)->getAsString(Args);
646
647 if (Args.hasArg(Ids: OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP)
648 Diags.Report(DiagID: diag::warn_ignored_hip_only_option)
649 << Args.getLastArg(Ids: OPT_gpu_max_threads_per_block_EQ)->getAsString(Args);
650
651 // When these options are used, the compiler is allowed to apply
652 // optimizations that may affect the final result. For example
653 // (x+y)+z is transformed to x+(y+z) but may not give the same
654 // final result; it's not value safe.
655 // Another example can be to simplify x/x to 1.0 but x could be 0.0, INF
656 // or NaN. Final result may then differ. An error is issued when the eval
657 // method is set with one of these options.
658 if (Args.hasArg(Ids: OPT_ffp_eval_method_EQ)) {
659 if (LangOpts.ApproxFunc)
660 Diags.Report(DiagID: diag::err_incompatible_fp_eval_method_options) << 0;
661 if (LangOpts.AllowFPReassoc)
662 Diags.Report(DiagID: diag::err_incompatible_fp_eval_method_options) << 1;
663 if (LangOpts.AllowRecip)
664 Diags.Report(DiagID: diag::err_incompatible_fp_eval_method_options) << 2;
665 }
666
667 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0.
668 // This option should be deprecated for CL > 1.0 because
669 // this option was added for compatibility with OpenCL 1.0.
670 if (Args.getLastArg(Ids: OPT_cl_strict_aliasing) &&
671 (LangOpts.getOpenCLCompatibleVersion() > 100))
672 Diags.Report(DiagID: diag::warn_option_invalid_ocl_version)
673 << LangOpts.getOpenCLVersionString()
674 << Args.getLastArg(Ids: OPT_cl_strict_aliasing)->getAsString(Args);
675
676 if (Arg *A = Args.getLastArg(Ids: OPT_fdefault_calling_conv_EQ)) {
677 auto DefaultCC = LangOpts.getDefaultCallingConv();
678
679 bool emitError = (DefaultCC == LangOptions::DCC_FastCall ||
680 DefaultCC == LangOptions::DCC_StdCall) &&
681 Arch != llvm::Triple::x86;
682 emitError |= (DefaultCC == LangOptions::DCC_VectorCall ||
683 DefaultCC == LangOptions::DCC_RegCall) &&
684 !T.isX86();
685 emitError |= DefaultCC == LangOptions::DCC_RtdCall && Arch != llvm::Triple::m68k;
686 if (emitError)
687 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
688 << A->getSpelling() << T.getTriple();
689 }
690
691 return Diags.getNumErrors() == NumErrorsBefore;
692}
693
694//===----------------------------------------------------------------------===//
695// Deserialization (from args)
696//===----------------------------------------------------------------------===//
697
698static unsigned getOptimizationLevel(ArgList &Args, InputKind IK,
699 DiagnosticsEngine &Diags) {
700 unsigned DefaultOpt = 0;
701 if ((IK.getLanguage() == Language::OpenCL ||
702 IK.getLanguage() == Language::OpenCLCXX) &&
703 !Args.hasArg(Ids: OPT_cl_opt_disable))
704 DefaultOpt = 2;
705
706 if (Arg *A = Args.getLastArg(Ids: options::OPT_O_Group)) {
707 if (A->getOption().matches(ID: options::OPT_O0))
708 return 0;
709
710 if (A->getOption().matches(ID: options::OPT_Ofast))
711 return 3;
712
713 assert(A->getOption().matches(options::OPT_O));
714
715 StringRef S(A->getValue());
716 if (S == "s" || S == "z")
717 return 2;
718
719 if (S == "g")
720 return 1;
721
722 return getLastArgIntValue(Args, Id: OPT_O, Default: DefaultOpt, Diags);
723 }
724
725 return DefaultOpt;
726}
727
728static unsigned getOptimizationLevelSize(ArgList &Args) {
729 if (Arg *A = Args.getLastArg(Ids: options::OPT_O_Group)) {
730 if (A->getOption().matches(ID: options::OPT_O)) {
731 switch (A->getValue()[0]) {
732 default:
733 return 0;
734 case 's':
735 return 1;
736 case 'z':
737 return 2;
738 }
739 }
740 }
741 return 0;
742}
743
744static void GenerateArg(ArgumentConsumer Consumer,
745 llvm::opt::OptSpecifier OptSpecifier) {
746 Option Opt = getDriverOptTable().getOption(Opt: OptSpecifier);
747 denormalizeSimpleFlag(Consumer, Spelling: Opt.getPrefixedName(),
748 Option::OptionClass::FlagClass, 0);
749}
750
751static void GenerateArg(ArgumentConsumer Consumer,
752 llvm::opt::OptSpecifier OptSpecifier,
753 const Twine &Value) {
754 Option Opt = getDriverOptTable().getOption(Opt: OptSpecifier);
755 denormalizeString(Consumer, Spelling: Opt.getPrefixedName(), OptClass: Opt.getKind(), TableIndex: 0, Value);
756}
757
758// Parse command line arguments into CompilerInvocation.
759using ParseFn =
760 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>,
761 DiagnosticsEngine &, const char *)>;
762
763// Generate command line arguments from CompilerInvocation.
764using GenerateFn = llvm::function_ref<void(
765 CompilerInvocation &, SmallVectorImpl<const char *> &,
766 CompilerInvocation::StringAllocator)>;
767
768/// May perform round-trip of command line arguments. By default, the round-trip
769/// is enabled in assert builds. This can be overwritten at run-time via the
770/// "-round-trip-args" and "-no-round-trip-args" command line flags, or via the
771/// ForceRoundTrip parameter.
772///
773/// During round-trip, the command line arguments are parsed into a dummy
774/// CompilerInvocation, which is used to generate the command line arguments
775/// again. The real CompilerInvocation is then created by parsing the generated
776/// arguments, not the original ones. This (in combination with tests covering
777/// argument behavior) ensures the generated command line is complete (doesn't
778/// drop/mangle any arguments).
779///
780/// Finally, we check the command line that was used to create the real
781/// CompilerInvocation instance. By default, we compare it to the command line
782/// the real CompilerInvocation generates. This checks whether the generator is
783/// deterministic. If \p CheckAgainstOriginalInvocation is enabled, we instead
784/// compare it to the original command line to verify the original command-line
785/// was canonical and can round-trip exactly.
786static bool RoundTrip(ParseFn Parse, GenerateFn Generate,
787 CompilerInvocation &RealInvocation,
788 CompilerInvocation &DummyInvocation,
789 ArrayRef<const char *> CommandLineArgs,
790 DiagnosticsEngine &Diags, const char *Argv0,
791 bool CheckAgainstOriginalInvocation = false,
792 bool ForceRoundTrip = false) {
793#ifndef NDEBUG
794 bool DoRoundTripDefault = true;
795#else
796 bool DoRoundTripDefault = false;
797#endif
798
799 bool DoRoundTrip = DoRoundTripDefault;
800 if (ForceRoundTrip) {
801 DoRoundTrip = true;
802 } else {
803 for (const auto *Arg : CommandLineArgs) {
804 if (Arg == StringRef("-round-trip-args"))
805 DoRoundTrip = true;
806 if (Arg == StringRef("-no-round-trip-args"))
807 DoRoundTrip = false;
808 }
809 }
810
811 // If round-trip was not requested, simply run the parser with the real
812 // invocation diagnostics.
813 if (!DoRoundTrip)
814 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0);
815
816 // Serializes quoted (and potentially escaped) arguments.
817 auto SerializeArgs = [](ArrayRef<const char *> Args) {
818 std::string Buffer;
819 llvm::raw_string_ostream OS(Buffer);
820 for (const char *Arg : Args) {
821 llvm::sys::printArg(OS, Arg, /*Quote=*/true);
822 OS << ' ';
823 }
824 return Buffer;
825 };
826
827 // Setup a dummy DiagnosticsEngine.
828 DiagnosticOptions DummyDiagOpts;
829 DiagnosticsEngine DummyDiags(new DiagnosticIDs(), DummyDiagOpts);
830 DummyDiags.setClient(client: new TextDiagnosticBuffer());
831
832 // Run the first parse on the original arguments with the dummy invocation and
833 // diagnostics.
834 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) ||
835 DummyDiags.getNumWarnings() != 0) {
836 // If the first parse did not succeed, it must be user mistake (invalid
837 // command line arguments). We won't be able to generate arguments that
838 // would reproduce the same result. Let's fail again with the real
839 // invocation and diagnostics, so all side-effects of parsing are visible.
840 unsigned NumWarningsBefore = Diags.getNumWarnings();
841 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0);
842 if (!Success || Diags.getNumWarnings() != NumWarningsBefore)
843 return Success;
844
845 // Parse with original options and diagnostics succeeded even though it
846 // shouldn't have. Something is off.
847 Diags.Report(DiagID: diag::err_cc1_round_trip_fail_then_ok);
848 Diags.Report(DiagID: diag::note_cc1_round_trip_original)
849 << SerializeArgs(CommandLineArgs);
850 return false;
851 }
852
853 // Setup string allocator.
854 llvm::BumpPtrAllocator Alloc;
855 llvm::StringSaver StringPool(Alloc);
856 auto SA = [&StringPool](const Twine &Arg) {
857 return StringPool.save(S: Arg).data();
858 };
859
860 // Generate arguments from the dummy invocation. If Generate is the
861 // inverse of Parse, the newly generated arguments must have the same
862 // semantics as the original.
863 SmallVector<const char *> GeneratedArgs;
864 Generate(DummyInvocation, GeneratedArgs, SA);
865
866 // Run the second parse, now on the generated arguments, and with the real
867 // invocation and diagnostics. The result is what we will end up using for the
868 // rest of compilation, so if Generate is not inverse of Parse, something down
869 // the line will break.
870 bool Success2 = Parse(RealInvocation, GeneratedArgs, Diags, Argv0);
871
872 // The first parse on original arguments succeeded, but second parse of
873 // generated arguments failed. Something must be wrong with the generator.
874 if (!Success2) {
875 Diags.Report(DiagID: diag::err_cc1_round_trip_ok_then_fail);
876 Diags.Report(DiagID: diag::note_cc1_round_trip_generated)
877 << 1 << SerializeArgs(GeneratedArgs);
878 return false;
879 }
880
881 SmallVector<const char *> ComparisonArgs;
882 if (CheckAgainstOriginalInvocation)
883 // Compare against original arguments.
884 ComparisonArgs.assign(in_start: CommandLineArgs.begin(), in_end: CommandLineArgs.end());
885 else
886 // Generate arguments again, this time from the options we will end up using
887 // for the rest of the compilation.
888 Generate(RealInvocation, ComparisonArgs, SA);
889
890 // Compares two lists of arguments.
891 auto Equal = [](const ArrayRef<const char *> A,
892 const ArrayRef<const char *> B) {
893 return std::equal(first1: A.begin(), last1: A.end(), first2: B.begin(), last2: B.end(),
894 binary_pred: [](const char *AElem, const char *BElem) {
895 return StringRef(AElem) == StringRef(BElem);
896 });
897 };
898
899 // If we generated different arguments from what we assume are two
900 // semantically equivalent CompilerInvocations, the Generate function may
901 // be non-deterministic.
902 if (!Equal(GeneratedArgs, ComparisonArgs)) {
903 Diags.Report(DiagID: diag::err_cc1_round_trip_mismatch);
904 Diags.Report(DiagID: diag::note_cc1_round_trip_generated)
905 << 1 << SerializeArgs(GeneratedArgs);
906 Diags.Report(DiagID: diag::note_cc1_round_trip_generated)
907 << 2 << SerializeArgs(ComparisonArgs);
908 return false;
909 }
910
911 Diags.Report(DiagID: diag::remark_cc1_round_trip_generated)
912 << 1 << SerializeArgs(GeneratedArgs);
913 Diags.Report(DiagID: diag::remark_cc1_round_trip_generated)
914 << 2 << SerializeArgs(ComparisonArgs);
915
916 return Success2;
917}
918
919bool CompilerInvocation::checkCC1RoundTrip(ArrayRef<const char *> Args,
920 DiagnosticsEngine &Diags,
921 const char *Argv0) {
922 CompilerInvocation DummyInvocation1, DummyInvocation2;
923 return RoundTrip(
924 Parse: [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs,
925 DiagnosticsEngine &Diags, const char *Argv0) {
926 return CreateFromArgsImpl(Res&: Invocation, CommandLineArgs, Diags, Argv0);
927 },
928 Generate: [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args,
929 StringAllocator SA) {
930 Args.push_back(Elt: "-cc1");
931 Invocation.generateCC1CommandLine(Args, SA);
932 },
933 RealInvocation&: DummyInvocation1, DummyInvocation&: DummyInvocation2, CommandLineArgs: Args, Diags, Argv0,
934 /*CheckAgainstOriginalInvocation=*/true, /*ForceRoundTrip=*/true);
935}
936
937static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group,
938 OptSpecifier GroupWithValue,
939 std::vector<std::string> &Diagnostics) {
940 for (auto *A : Args.filtered(Ids: Group)) {
941 if (A->getOption().getKind() == Option::FlagClass) {
942 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add
943 // its name (minus the "W" or "R" at the beginning) to the diagnostics.
944 Diagnostics.push_back(
945 x: std::string(A->getOption().getName().drop_front(N: 1)));
946 } else if (A->getOption().matches(ID: GroupWithValue)) {
947 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic
948 // group. Add only the group name to the diagnostics.
949 Diagnostics.push_back(
950 x: std::string(A->getOption().getName().drop_front(N: 1).rtrim(Chars: "=-")));
951 } else {
952 // Otherwise, add its value (for OPT_W_Joined and similar).
953 Diagnostics.push_back(x: A->getValue());
954 }
955 }
956}
957
958// Parse the Static Analyzer configuration. If \p Diags is set to nullptr,
959// it won't verify the input.
960static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts,
961 DiagnosticsEngine *Diags);
962
963static void getAllNoBuiltinFuncValues(ArgList &Args,
964 std::vector<std::string> &Funcs) {
965 std::vector<std::string> Values = Args.getAllArgValues(Id: OPT_fno_builtin_);
966 auto BuiltinEnd = llvm::partition(Range&: Values, P: Builtin::Context::isBuiltinFunc);
967 Funcs.insert(position: Funcs.end(), first: Values.begin(), last: BuiltinEnd);
968}
969
970static void GenerateAnalyzerArgs(const AnalyzerOptions &Opts,
971 ArgumentConsumer Consumer) {
972 const AnalyzerOptions *AnalyzerOpts = &Opts;
973
974#define ANALYZER_OPTION_WITH_MARSHALLING(...) \
975 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
976#include "clang/Driver/Options.inc"
977#undef ANALYZER_OPTION_WITH_MARSHALLING
978
979 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) {
980 switch (Opts.AnalysisConstraintsOpt) {
981#define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
982 case NAME##Model: \
983 GenerateArg(Consumer, OPT_analyzer_constraints, CMDFLAG); \
984 break;
985#include "clang/StaticAnalyzer/Core/Analyses.def"
986 default:
987 llvm_unreachable("Tried to generate unknown analysis constraint.");
988 }
989 }
990
991 if (Opts.AnalysisDiagOpt != PD_HTML) {
992 switch (Opts.AnalysisDiagOpt) {
993#define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \
994 case PD_##NAME: \
995 GenerateArg(Consumer, OPT_analyzer_output, CMDFLAG); \
996 break;
997#include "clang/StaticAnalyzer/Core/Analyses.def"
998 default:
999 llvm_unreachable("Tried to generate unknown analysis diagnostic client.");
1000 }
1001 }
1002
1003 if (Opts.AnalysisPurgeOpt != PurgeStmt) {
1004 switch (Opts.AnalysisPurgeOpt) {
1005#define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \
1006 case NAME: \
1007 GenerateArg(Consumer, OPT_analyzer_purge, CMDFLAG); \
1008 break;
1009#include "clang/StaticAnalyzer/Core/Analyses.def"
1010 default:
1011 llvm_unreachable("Tried to generate unknown analysis purge mode.");
1012 }
1013 }
1014
1015 if (Opts.InliningMode != NoRedundancy) {
1016 switch (Opts.InliningMode) {
1017#define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \
1018 case NAME: \
1019 GenerateArg(Consumer, OPT_analyzer_inlining_mode, CMDFLAG); \
1020 break;
1021#include "clang/StaticAnalyzer/Core/Analyses.def"
1022 default:
1023 llvm_unreachable("Tried to generate unknown analysis inlining mode.");
1024 }
1025 }
1026
1027 for (const auto &CP : Opts.CheckersAndPackages) {
1028 OptSpecifier Opt =
1029 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker;
1030 GenerateArg(Consumer, OptSpecifier: Opt, Value: CP.first);
1031 }
1032
1033 AnalyzerOptions ConfigOpts;
1034 parseAnalyzerConfigs(AnOpts&: ConfigOpts, Diags: nullptr);
1035
1036 // Sort options by key to avoid relying on StringMap iteration order.
1037 SmallVector<std::pair<StringRef, StringRef>, 4> SortedConfigOpts;
1038 for (const auto &C : Opts.Config)
1039 SortedConfigOpts.emplace_back(Args: C.getKey(), Args: C.getValue());
1040 llvm::sort(C&: SortedConfigOpts, Comp: llvm::less_first());
1041
1042 for (const auto &[Key, Value] : SortedConfigOpts) {
1043 // Don't generate anything that came from parseAnalyzerConfigs. It would be
1044 // redundant and may not be valid on the command line.
1045 auto Entry = ConfigOpts.Config.find(Key);
1046 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == Value)
1047 continue;
1048
1049 GenerateArg(Consumer, OptSpecifier: OPT_analyzer_config, Value: Key + "=" + Value);
1050 }
1051
1052 // Nothing to generate for FullCompilerInvocation.
1053}
1054
1055static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
1056 DiagnosticsEngine &Diags) {
1057 unsigned NumErrorsBefore = Diags.getNumErrors();
1058
1059 AnalyzerOptions *AnalyzerOpts = &Opts;
1060
1061#define ANALYZER_OPTION_WITH_MARSHALLING(...) \
1062 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
1063#include "clang/Driver/Options.inc"
1064#undef ANALYZER_OPTION_WITH_MARSHALLING
1065
1066 if (Arg *A = Args.getLastArg(Ids: OPT_analyzer_constraints)) {
1067 StringRef Name = A->getValue();
1068 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
1069#define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
1070 .Case(CMDFLAG, NAME##Model)
1071#include "clang/StaticAnalyzer/Core/Analyses.def"
1072 .Default(Value: NumConstraints);
1073 if (Value == NumConstraints) {
1074 Diags.Report(DiagID: diag::err_drv_invalid_value)
1075 << A->getAsString(Args) << Name;
1076 } else {
1077#ifndef LLVM_WITH_Z3
1078 if (Value == AnalysisConstraints::Z3ConstraintsModel) {
1079 Diags.Report(DiagID: diag::err_analyzer_not_built_with_z3);
1080 }
1081#endif // LLVM_WITH_Z3
1082 Opts.AnalysisConstraintsOpt = Value;
1083 }
1084 }
1085
1086 if (Arg *A = Args.getLastArg(Ids: OPT_analyzer_output)) {
1087 StringRef Name = A->getValue();
1088 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
1089#define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \
1090 .Case(CMDFLAG, PD_##NAME)
1091#include "clang/StaticAnalyzer/Core/Analyses.def"
1092 .Default(Value: NUM_ANALYSIS_DIAG_CLIENTS);
1093 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) {
1094 Diags.Report(DiagID: diag::err_drv_invalid_value)
1095 << A->getAsString(Args) << Name;
1096 } else {
1097 Opts.AnalysisDiagOpt = Value;
1098 }
1099 }
1100
1101 if (Arg *A = Args.getLastArg(Ids: OPT_analyzer_purge)) {
1102 StringRef Name = A->getValue();
1103 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name)
1104#define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \
1105 .Case(CMDFLAG, NAME)
1106#include "clang/StaticAnalyzer/Core/Analyses.def"
1107 .Default(Value: NumPurgeModes);
1108 if (Value == NumPurgeModes) {
1109 Diags.Report(DiagID: diag::err_drv_invalid_value)
1110 << A->getAsString(Args) << Name;
1111 } else {
1112 Opts.AnalysisPurgeOpt = Value;
1113 }
1114 }
1115
1116 if (Arg *A = Args.getLastArg(Ids: OPT_analyzer_inlining_mode)) {
1117 StringRef Name = A->getValue();
1118 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name)
1119#define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \
1120 .Case(CMDFLAG, NAME)
1121#include "clang/StaticAnalyzer/Core/Analyses.def"
1122 .Default(Value: NumInliningModes);
1123 if (Value == NumInliningModes) {
1124 Diags.Report(DiagID: diag::err_drv_invalid_value)
1125 << A->getAsString(Args) << Name;
1126 } else {
1127 Opts.InliningMode = Value;
1128 }
1129 }
1130
1131 Opts.CheckersAndPackages.clear();
1132 for (const Arg *A :
1133 Args.filtered(Ids: OPT_analyzer_checker, Ids: OPT_analyzer_disable_checker)) {
1134 A->claim();
1135 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker;
1136 // We can have a list of comma separated checker names, e.g:
1137 // '-analyzer-checker=cocoa,unix'
1138 StringRef CheckerAndPackageList = A->getValue();
1139 SmallVector<StringRef, 16> CheckersAndPackages;
1140 CheckerAndPackageList.split(A&: CheckersAndPackages, Separator: ",");
1141 for (const StringRef &CheckerOrPackage : CheckersAndPackages)
1142 Opts.CheckersAndPackages.emplace_back(args: std::string(CheckerOrPackage),
1143 args&: IsEnabled);
1144 }
1145
1146 // Go through the analyzer configuration options.
1147 for (const auto *A : Args.filtered(Ids: OPT_analyzer_config)) {
1148
1149 // We can have a list of comma separated config names, e.g:
1150 // '-analyzer-config key1=val1,key2=val2'
1151 StringRef configList = A->getValue();
1152 SmallVector<StringRef, 4> configVals;
1153 configList.split(A&: configVals, Separator: ",");
1154 for (const auto &configVal : configVals) {
1155 StringRef key, val;
1156 std::tie(args&: key, args&: val) = configVal.split(Separator: "=");
1157 if (val.empty()) {
1158 Diags.Report(Loc: SourceLocation(),
1159 DiagID: diag::err_analyzer_config_no_value) << configVal;
1160 break;
1161 }
1162 if (val.contains(C: '=')) {
1163 Diags.Report(Loc: SourceLocation(),
1164 DiagID: diag::err_analyzer_config_multiple_values)
1165 << configVal;
1166 break;
1167 }
1168
1169 // TODO: Check checker options too, possibly in CheckerRegistry.
1170 // Leave unknown non-checker configs unclaimed.
1171 if (!key.contains(Other: ":") && Opts.isUnknownAnalyzerConfig(Name: key)) {
1172 if (Opts.ShouldEmitErrorsOnInvalidConfigValue)
1173 Diags.Report(DiagID: diag::err_analyzer_config_unknown) << key;
1174 continue;
1175 }
1176
1177 A->claim();
1178 Opts.Config[key] = std::string(val);
1179 }
1180 }
1181
1182 if (Opts.ShouldEmitErrorsOnInvalidConfigValue)
1183 parseAnalyzerConfigs(AnOpts&: Opts, Diags: &Diags);
1184 else
1185 parseAnalyzerConfigs(AnOpts&: Opts, Diags: nullptr);
1186
1187 llvm::raw_string_ostream os(Opts.FullCompilerInvocation);
1188 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) {
1189 if (i != 0)
1190 os << " ";
1191 os << Args.getArgString(Index: i);
1192 }
1193
1194 return Diags.getNumErrors() == NumErrorsBefore;
1195}
1196
1197static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config,
1198 StringRef OptionName, StringRef DefaultVal) {
1199 return Config.insert(KV: {OptionName, std::string(DefaultVal)}).first->second;
1200}
1201
1202static void initOption(AnalyzerOptions::ConfigTable &Config,
1203 DiagnosticsEngine *Diags,
1204 StringRef &OptionField, StringRef Name,
1205 StringRef DefaultVal) {
1206 // String options may be known to invalid (e.g. if the expected string is a
1207 // file name, but the file does not exist), those will have to be checked in
1208 // parseConfigs.
1209 OptionField = getStringOption(Config, OptionName: Name, DefaultVal);
1210}
1211
1212static void initOption(AnalyzerOptions::ConfigTable &Config,
1213 DiagnosticsEngine *Diags,
1214 bool &OptionField, StringRef Name, bool DefaultVal) {
1215 auto PossiblyInvalidVal =
1216 llvm::StringSwitch<std::optional<bool>>(
1217 getStringOption(Config, OptionName: Name, DefaultVal: (DefaultVal ? "true" : "false")))
1218 .Case(S: "true", Value: true)
1219 .Case(S: "false", Value: false)
1220 .Default(Value: std::nullopt);
1221
1222 if (!PossiblyInvalidVal) {
1223 if (Diags)
1224 Diags->Report(DiagID: diag::err_analyzer_config_invalid_input)
1225 << Name << "a boolean";
1226 else
1227 OptionField = DefaultVal;
1228 } else
1229 OptionField = *PossiblyInvalidVal;
1230}
1231
1232static void initOption(AnalyzerOptions::ConfigTable &Config,
1233 DiagnosticsEngine *Diags,
1234 unsigned &OptionField, StringRef Name,
1235 unsigned DefaultVal) {
1236
1237 OptionField = DefaultVal;
1238 bool HasFailed = getStringOption(Config, OptionName: Name, DefaultVal: std::to_string(val: DefaultVal))
1239 .getAsInteger(Radix: 0, Result&: OptionField);
1240 if (Diags && HasFailed)
1241 Diags->Report(DiagID: diag::err_analyzer_config_invalid_input)
1242 << Name << "an unsigned";
1243}
1244
1245static void initOption(AnalyzerOptions::ConfigTable &Config,
1246 DiagnosticsEngine *Diags,
1247 PositiveAnalyzerOption &OptionField, StringRef Name,
1248 unsigned DefaultVal) {
1249 auto Parsed = PositiveAnalyzerOption::create(
1250 Str: getStringOption(Config, OptionName: Name, DefaultVal: std::to_string(val: DefaultVal)));
1251 if (Parsed.has_value()) {
1252 OptionField = Parsed.value();
1253 return;
1254 }
1255 if (Diags && !Parsed.has_value())
1256 Diags->Report(DiagID: diag::err_analyzer_config_invalid_input)
1257 << Name << "a positive";
1258
1259 OptionField = DefaultVal;
1260}
1261
1262static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts,
1263 DiagnosticsEngine *Diags) {
1264 // TODO: There's no need to store the entire configtable, it'd be plenty
1265 // enough to store checker options.
1266
1267#define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \
1268 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL);
1269#define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(...)
1270#include "clang/StaticAnalyzer/Core/AnalyzerOptions.def"
1271
1272 assert(AnOpts.UserMode == "shallow" || AnOpts.UserMode == "deep");
1273 const bool InShallowMode = AnOpts.UserMode == "shallow";
1274
1275#define ANALYZER_OPTION(...)
1276#define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \
1277 SHALLOW_VAL, DEEP_VAL) \
1278 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, \
1279 InShallowMode ? SHALLOW_VAL : DEEP_VAL);
1280#include "clang/StaticAnalyzer/Core/AnalyzerOptions.def"
1281
1282 // At this point, AnalyzerOptions is configured. Let's validate some options.
1283
1284 // FIXME: Here we try to validate the silenced checkers or packages are valid.
1285 // The current approach only validates the registered checkers which does not
1286 // contain the runtime enabled checkers and optimally we would validate both.
1287 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) {
1288 std::vector<StringRef> Checkers =
1289 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true);
1290 std::vector<StringRef> Packages =
1291 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true);
1292
1293 SmallVector<StringRef, 16> CheckersAndPackages;
1294 AnOpts.RawSilencedCheckersAndPackages.split(A&: CheckersAndPackages, Separator: ";");
1295
1296 for (const StringRef &CheckerOrPackage : CheckersAndPackages) {
1297 if (Diags) {
1298 bool IsChecker = CheckerOrPackage.contains(C: '.');
1299 bool IsValidName = IsChecker
1300 ? llvm::is_contained(Range&: Checkers, Element: CheckerOrPackage)
1301 : llvm::is_contained(Range&: Packages, Element: CheckerOrPackage);
1302
1303 if (!IsValidName)
1304 Diags->Report(DiagID: diag::err_unknown_analyzer_checker_or_package)
1305 << CheckerOrPackage;
1306 }
1307
1308 AnOpts.SilencedCheckersAndPackages.emplace_back(args: CheckerOrPackage);
1309 }
1310 }
1311
1312 if (!Diags)
1313 return;
1314
1315 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions)
1316 Diags->Report(DiagID: diag::err_analyzer_config_invalid_input)
1317 << "track-conditions-debug" << "'track-conditions' to also be enabled";
1318
1319 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(Path: AnOpts.CTUDir))
1320 Diags->Report(DiagID: diag::err_analyzer_config_invalid_input) << "ctu-dir"
1321 << "a filename";
1322
1323 if (!AnOpts.ModelPath.empty() &&
1324 !llvm::sys::fs::is_directory(Path: AnOpts.ModelPath))
1325 Diags->Report(DiagID: diag::err_analyzer_config_invalid_input) << "model-path"
1326 << "a filename";
1327}
1328
1329/// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`.
1330static void
1331GenerateOptimizationRemark(ArgumentConsumer Consumer, OptSpecifier OptEQ,
1332 StringRef Name,
1333 const CodeGenOptions::OptRemark &Remark) {
1334 if (Remark.hasValidPattern()) {
1335 GenerateArg(Consumer, OptSpecifier: OptEQ, Value: Remark.Pattern);
1336 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) {
1337 GenerateArg(Consumer, OptSpecifier: OPT_R_Joined, Value: Name);
1338 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) {
1339 GenerateArg(Consumer, OptSpecifier: OPT_R_Joined, Value: StringRef("no-") + Name);
1340 }
1341}
1342
1343/// Parse a remark command line argument. It may be missing, disabled/enabled by
1344/// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'.
1345/// On top of that, it can be disabled/enabled globally by '-R[no-]everything'.
1346static CodeGenOptions::OptRemark
1347ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args,
1348 OptSpecifier OptEQ, StringRef Name) {
1349 CodeGenOptions::OptRemark Result;
1350
1351 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A,
1352 StringRef Pattern) {
1353 Result.Pattern = Pattern.str();
1354
1355 std::string RegexError;
1356 Result.Regex = std::make_shared<llvm::Regex>(args&: Result.Pattern);
1357 if (!Result.Regex->isValid(Error&: RegexError)) {
1358 Diags.Report(DiagID: diag::err_drv_optimization_remark_pattern)
1359 << RegexError << A->getAsString(Args);
1360 return false;
1361 }
1362
1363 return true;
1364 };
1365
1366 for (Arg *A : Args) {
1367 if (A->getOption().matches(ID: OPT_R_Joined)) {
1368 StringRef Value = A->getValue();
1369
1370 if (Value == Name)
1371 Result.Kind = CodeGenOptions::RK_Enabled;
1372 else if (Value == "everything")
1373 Result.Kind = CodeGenOptions::RK_EnabledEverything;
1374 else if (Value.split(Separator: '-') == std::make_pair(x: StringRef("no"), y&: Name))
1375 Result.Kind = CodeGenOptions::RK_Disabled;
1376 else if (Value == "no-everything")
1377 Result.Kind = CodeGenOptions::RK_DisabledEverything;
1378 else
1379 continue;
1380
1381 if (Result.Kind == CodeGenOptions::RK_Disabled ||
1382 Result.Kind == CodeGenOptions::RK_DisabledEverything) {
1383 Result.Pattern = "";
1384 Result.Regex = nullptr;
1385 } else {
1386 InitializeResultPattern(A, ".*");
1387 }
1388 } else if (A->getOption().matches(ID: OptEQ)) {
1389 Result.Kind = CodeGenOptions::RK_WithPattern;
1390 if (!InitializeResultPattern(A, A->getValue()))
1391 return CodeGenOptions::OptRemark();
1392 }
1393 }
1394
1395 return Result;
1396}
1397
1398static bool parseDiagnosticLevelMask(StringRef FlagName,
1399 const std::vector<std::string> &Levels,
1400 DiagnosticsEngine &Diags,
1401 DiagnosticLevelMask &M) {
1402 bool Success = true;
1403 for (const auto &Level : Levels) {
1404 DiagnosticLevelMask const PM =
1405 llvm::StringSwitch<DiagnosticLevelMask>(Level)
1406 .Case(S: "note", Value: DiagnosticLevelMask::Note)
1407 .Case(S: "remark", Value: DiagnosticLevelMask::Remark)
1408 .Case(S: "warning", Value: DiagnosticLevelMask::Warning)
1409 .Case(S: "error", Value: DiagnosticLevelMask::Error)
1410 .Default(Value: DiagnosticLevelMask::None);
1411 if (PM == DiagnosticLevelMask::None) {
1412 Success = false;
1413 Diags.Report(DiagID: diag::err_drv_invalid_value) << FlagName << Level;
1414 }
1415 M = M | PM;
1416 }
1417 return Success;
1418}
1419
1420static void parseSanitizerKinds(StringRef FlagName,
1421 const std::vector<std::string> &Sanitizers,
1422 DiagnosticsEngine &Diags, SanitizerSet &S) {
1423 for (const auto &Sanitizer : Sanitizers) {
1424 SanitizerMask K = parseSanitizerValue(Value: Sanitizer, /*AllowGroups=*/false);
1425 if (K == SanitizerMask())
1426 Diags.Report(DiagID: diag::err_drv_invalid_value) << FlagName << Sanitizer;
1427 else
1428 S.set(K, Value: true);
1429 }
1430}
1431
1432static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) {
1433 SmallVector<StringRef, 4> Values;
1434 serializeSanitizerSet(Set: S, Values);
1435 return Values;
1436}
1437
1438static SanitizerMaskCutoffs
1439parseSanitizerWeightedKinds(StringRef FlagName,
1440 const std::vector<std::string> &Sanitizers,
1441 DiagnosticsEngine &Diags) {
1442 SanitizerMaskCutoffs Cutoffs;
1443 for (const auto &Sanitizer : Sanitizers) {
1444 if (!parseSanitizerWeightedValue(Value: Sanitizer, /*AllowGroups=*/false, Cutoffs))
1445 Diags.Report(DiagID: diag::err_drv_invalid_value) << FlagName << Sanitizer;
1446 }
1447 return Cutoffs;
1448}
1449
1450static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle,
1451 ArgList &Args, DiagnosticsEngine &D,
1452 XRayInstrSet &S) {
1453 llvm::SmallVector<StringRef, 2> BundleParts;
1454 llvm::SplitString(Source: Bundle, OutFragments&: BundleParts, Delimiters: ",");
1455 for (const auto &B : BundleParts) {
1456 auto Mask = parseXRayInstrValue(Value: B);
1457 if (Mask == XRayInstrKind::None)
1458 if (B != "none")
1459 D.Report(DiagID: diag::err_drv_invalid_value) << FlagName << Bundle;
1460 else
1461 S.Mask = Mask;
1462 else if (Mask == XRayInstrKind::All)
1463 S.Mask = Mask;
1464 else
1465 S.set(K: Mask, Value: true);
1466 }
1467}
1468
1469static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) {
1470 llvm::SmallVector<StringRef, 2> BundleParts;
1471 serializeXRayInstrValue(Set: S, Values&: BundleParts);
1472 std::string Buffer;
1473 llvm::raw_string_ostream OS(Buffer);
1474 llvm::interleave(c: BundleParts, os&: OS, each_fn: [&OS](StringRef Part) { OS << Part; }, separator: ",");
1475 return Buffer;
1476}
1477
1478// Set the profile kind using fprofile-instrument-use-path.
1479static void setPGOUseInstrumentor(CodeGenOptions &Opts,
1480 const Twine &ProfileName,
1481 llvm::vfs::FileSystem &FS,
1482 DiagnosticsEngine &Diags) {
1483 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(Path: ProfileName, FS);
1484 if (auto E = ReaderOrErr.takeError()) {
1485 unsigned DiagID = Diags.getCustomDiagID(L: DiagnosticsEngine::Error,
1486 FormatString: "Error in reading profile %0: %1");
1487 llvm::handleAllErrors(E: std::move(E), Handlers: [&](const llvm::ErrorInfoBase &EI) {
1488 Diags.Report(DiagID) << ProfileName.str() << EI.message();
1489 });
1490 return;
1491 }
1492 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader =
1493 std::move(ReaderOrErr.get());
1494 // Currently memprof profiles are only added at the IR level. Mark the profile
1495 // type as IR in that case as well and the subsequent matching needs to detect
1496 // which is available (might be one or both).
1497 if (PGOReader->isIRLevelProfile() || PGOReader->hasMemoryProfile()) {
1498 if (PGOReader->hasCSIRLevelProfile())
1499 Opts.setProfileUse(llvm::driver::ProfileInstrKind::ProfileCSIRInstr);
1500 else
1501 Opts.setProfileUse(llvm::driver::ProfileInstrKind::ProfileIRInstr);
1502 } else
1503 Opts.setProfileUse(llvm::driver::ProfileInstrKind::ProfileClangInstr);
1504}
1505
1506void CompilerInvocation::setDefaultPointerAuthOptions(
1507 PointerAuthOptions &Opts, const LangOptions &LangOpts,
1508 const llvm::Triple &Triple) {
1509 assert(Triple.getArch() == llvm::Triple::aarch64);
1510 if (LangOpts.PointerAuthCalls) {
1511 using Key = PointerAuthSchema::ARM8_3Key;
1512 using Discrimination = PointerAuthSchema::Discrimination;
1513 // If you change anything here, be sure to update <ptrauth.h>.
1514 Opts.FunctionPointers = PointerAuthSchema(
1515 Key::ASIA, false,
1516 LangOpts.PointerAuthFunctionTypeDiscrimination ? Discrimination::Type
1517 : Discrimination::None);
1518
1519 Opts.CXXVTablePointers = PointerAuthSchema(
1520 Key::ASDA, LangOpts.PointerAuthVTPtrAddressDiscrimination,
1521 LangOpts.PointerAuthVTPtrTypeDiscrimination ? Discrimination::Type
1522 : Discrimination::None);
1523
1524 if (LangOpts.PointerAuthTypeInfoVTPtrDiscrimination)
1525 Opts.CXXTypeInfoVTablePointer =
1526 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant,
1527 StdTypeInfoVTablePointerConstantDiscrimination);
1528 else
1529 Opts.CXXTypeInfoVTablePointer =
1530 PointerAuthSchema(Key::ASDA, false, Discrimination::None);
1531
1532 Opts.CXXVTTVTablePointers =
1533 PointerAuthSchema(Key::ASDA, false, Discrimination::None);
1534 Opts.CXXVirtualFunctionPointers = Opts.CXXVirtualVariadicFunctionPointers =
1535 PointerAuthSchema(Key::ASIA, true, Discrimination::Decl);
1536 Opts.CXXMemberFunctionPointers =
1537 PointerAuthSchema(Key::ASIA, false, Discrimination::Type);
1538
1539 if (LangOpts.PointerAuthInitFini) {
1540 Opts.InitFiniPointers = PointerAuthSchema(
1541 Key::ASIA, LangOpts.PointerAuthInitFiniAddressDiscrimination,
1542 Discrimination::Constant, InitFiniPointerConstantDiscriminator);
1543 }
1544
1545 Opts.BlockInvocationFunctionPointers =
1546 PointerAuthSchema(Key::ASIA, true, Discrimination::None);
1547 Opts.BlockHelperFunctionPointers =
1548 PointerAuthSchema(Key::ASIA, true, Discrimination::None);
1549 Opts.BlockByrefHelperFunctionPointers =
1550 PointerAuthSchema(Key::ASIA, true, Discrimination::None);
1551 if (LangOpts.PointerAuthBlockDescriptorPointers)
1552 Opts.BlockDescriptorPointers =
1553 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant,
1554 BlockDescriptorConstantDiscriminator);
1555
1556 Opts.ObjCMethodListFunctionPointers =
1557 PointerAuthSchema(Key::ASIA, true, Discrimination::None);
1558 Opts.ObjCMethodListPointer =
1559 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant,
1560 MethodListPointerConstantDiscriminator);
1561 if (LangOpts.PointerAuthObjcIsa) {
1562 Opts.ObjCIsaPointers =
1563 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant,
1564 IsaPointerConstantDiscriminator);
1565 Opts.ObjCSuperPointers =
1566 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant,
1567 SuperPointerConstantDiscriminator);
1568 }
1569
1570 if (LangOpts.PointerAuthObjcClassROPointers)
1571 Opts.ObjCClassROPointers =
1572 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant,
1573 ClassROConstantDiscriminator);
1574 }
1575 Opts.ReturnAddresses = LangOpts.PointerAuthReturns;
1576 Opts.AuthTraps = LangOpts.PointerAuthAuthTraps;
1577 Opts.IndirectGotos = LangOpts.PointerAuthIndirectGotos;
1578 Opts.AArch64JumpTableHardening = LangOpts.AArch64JumpTableHardening;
1579}
1580
1581static void parsePointerAuthOptions(PointerAuthOptions &Opts,
1582 const LangOptions &LangOpts,
1583 const llvm::Triple &Triple,
1584 DiagnosticsEngine &Diags) {
1585 if (!LangOpts.PointerAuthCalls && !LangOpts.PointerAuthReturns &&
1586 !LangOpts.PointerAuthAuthTraps && !LangOpts.PointerAuthIndirectGotos &&
1587 !LangOpts.AArch64JumpTableHardening)
1588 return;
1589
1590 CompilerInvocation::setDefaultPointerAuthOptions(Opts, LangOpts, Triple);
1591}
1592
1593void CompilerInvocationBase::GenerateCodeGenArgs(const CodeGenOptions &Opts,
1594 ArgumentConsumer Consumer,
1595 const llvm::Triple &T,
1596 const std::string &OutputFile,
1597 const LangOptions *LangOpts) {
1598 const CodeGenOptions &CodeGenOpts = Opts;
1599
1600 if (Opts.OptimizationLevel == 0)
1601 GenerateArg(Consumer, OptSpecifier: OPT_O0);
1602 else
1603 GenerateArg(Consumer, OptSpecifier: OPT_O, Value: Twine(Opts.OptimizationLevel));
1604
1605#define CODEGEN_OPTION_WITH_MARSHALLING(...) \
1606 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
1607#include "clang/Driver/Options.inc"
1608#undef CODEGEN_OPTION_WITH_MARSHALLING
1609
1610 if (Opts.OptimizationLevel > 0) {
1611 if (Opts.Inlining == CodeGenOptions::NormalInlining)
1612 GenerateArg(Consumer, OptSpecifier: OPT_finline_functions);
1613 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining)
1614 GenerateArg(Consumer, OptSpecifier: OPT_finline_hint_functions);
1615 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining)
1616 GenerateArg(Consumer, OptSpecifier: OPT_fno_inline);
1617 }
1618
1619 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0)
1620 GenerateArg(Consumer, OptSpecifier: OPT_fdirect_access_external_data);
1621 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0)
1622 GenerateArg(Consumer, OptSpecifier: OPT_fno_direct_access_external_data);
1623
1624 std::optional<StringRef> DebugInfoVal;
1625 switch (Opts.DebugInfo) {
1626 case llvm::codegenoptions::DebugLineTablesOnly:
1627 DebugInfoVal = "line-tables-only";
1628 break;
1629 case llvm::codegenoptions::DebugDirectivesOnly:
1630 DebugInfoVal = "line-directives-only";
1631 break;
1632 case llvm::codegenoptions::DebugInfoConstructor:
1633 DebugInfoVal = "constructor";
1634 break;
1635 case llvm::codegenoptions::LimitedDebugInfo:
1636 DebugInfoVal = "limited";
1637 break;
1638 case llvm::codegenoptions::FullDebugInfo:
1639 DebugInfoVal = "standalone";
1640 break;
1641 case llvm::codegenoptions::UnusedTypeInfo:
1642 DebugInfoVal = "unused-types";
1643 break;
1644 case llvm::codegenoptions::NoDebugInfo: // default value
1645 DebugInfoVal = std::nullopt;
1646 break;
1647 case llvm::codegenoptions::LocTrackingOnly: // implied value
1648 DebugInfoVal = std::nullopt;
1649 break;
1650 }
1651 if (DebugInfoVal)
1652 GenerateArg(Consumer, OptSpecifier: OPT_debug_info_kind_EQ, Value: *DebugInfoVal);
1653
1654 for (const auto &Prefix : Opts.DebugPrefixMap)
1655 GenerateArg(Consumer, OptSpecifier: OPT_fdebug_prefix_map_EQ,
1656 Value: Prefix.first + "=" + Prefix.second);
1657
1658 for (const auto &Prefix : Opts.CoveragePrefixMap)
1659 GenerateArg(Consumer, OptSpecifier: OPT_fcoverage_prefix_map_EQ,
1660 Value: Prefix.first + "=" + Prefix.second);
1661
1662 if (Opts.NewStructPathTBAA)
1663 GenerateArg(Consumer, OptSpecifier: OPT_new_struct_path_tbaa);
1664
1665 if (Opts.OptimizeSize == 1)
1666 GenerateArg(Consumer, OptSpecifier: OPT_O, Value: "s");
1667 else if (Opts.OptimizeSize == 2)
1668 GenerateArg(Consumer, OptSpecifier: OPT_O, Value: "z");
1669
1670 // SimplifyLibCalls is set only in the absence of -fno-builtin and
1671 // -ffreestanding. We'll consider that when generating them.
1672
1673 // NoBuiltinFuncs are generated by LangOptions.
1674
1675 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1)
1676 GenerateArg(Consumer, OptSpecifier: OPT_funroll_loops);
1677 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1)
1678 GenerateArg(Consumer, OptSpecifier: OPT_fno_unroll_loops);
1679
1680 if (Opts.InterchangeLoops)
1681 GenerateArg(Consumer, OptSpecifier: OPT_floop_interchange);
1682 else
1683 GenerateArg(Consumer, OptSpecifier: OPT_fno_loop_interchange);
1684
1685 if (!Opts.BinutilsVersion.empty())
1686 GenerateArg(Consumer, OptSpecifier: OPT_fbinutils_version_EQ, Value: Opts.BinutilsVersion);
1687
1688 if (Opts.DebugNameTable ==
1689 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU))
1690 GenerateArg(Consumer, OptSpecifier: OPT_ggnu_pubnames);
1691 else if (Opts.DebugNameTable ==
1692 static_cast<unsigned>(
1693 llvm::DICompileUnit::DebugNameTableKind::Default))
1694 GenerateArg(Consumer, OptSpecifier: OPT_gpubnames);
1695
1696 if (Opts.DebugTemplateAlias)
1697 GenerateArg(Consumer, OptSpecifier: OPT_gtemplate_alias);
1698
1699 auto TNK = Opts.getDebugSimpleTemplateNames();
1700 if (TNK != llvm::codegenoptions::DebugTemplateNamesKind::Full) {
1701 if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Simple)
1702 GenerateArg(Consumer, OptSpecifier: OPT_gsimple_template_names_EQ, Value: "simple");
1703 else if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Mangled)
1704 GenerateArg(Consumer, OptSpecifier: OPT_gsimple_template_names_EQ, Value: "mangled");
1705 }
1706 // ProfileInstrumentUsePath is marshalled automatically, no need to generate
1707 // it or PGOUseInstrumentor.
1708
1709 if (Opts.TimePasses) {
1710 if (Opts.TimePassesPerRun)
1711 GenerateArg(Consumer, OptSpecifier: OPT_ftime_report_EQ, Value: "per-pass-run");
1712 else
1713 GenerateArg(Consumer, OptSpecifier: OPT_ftime_report);
1714
1715 if (Opts.TimePassesJson)
1716 GenerateArg(Consumer, OptSpecifier: OPT_ftime_report_json);
1717 }
1718
1719 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO)
1720 GenerateArg(Consumer, OptSpecifier: OPT_flto_EQ, Value: "full");
1721
1722 if (Opts.PrepareForThinLTO)
1723 GenerateArg(Consumer, OptSpecifier: OPT_flto_EQ, Value: "thin");
1724
1725 if (!Opts.ThinLTOIndexFile.empty())
1726 GenerateArg(Consumer, OptSpecifier: OPT_fthinlto_index_EQ, Value: Opts.ThinLTOIndexFile);
1727
1728 if (Opts.SaveTempsFilePrefix == OutputFile)
1729 GenerateArg(Consumer, OptSpecifier: OPT_save_temps_EQ, Value: "obj");
1730
1731 StringRef MemProfileBasename("memprof.profraw");
1732 if (!Opts.MemoryProfileOutput.empty()) {
1733 if (Opts.MemoryProfileOutput == MemProfileBasename) {
1734 GenerateArg(Consumer, OptSpecifier: OPT_fmemory_profile);
1735 } else {
1736 size_t ArgLength =
1737 Opts.MemoryProfileOutput.size() - MemProfileBasename.size();
1738 GenerateArg(Consumer, OptSpecifier: OPT_fmemory_profile_EQ,
1739 Value: Opts.MemoryProfileOutput.substr(pos: 0, n: ArgLength));
1740 }
1741 }
1742
1743 if (memcmp(s1: Opts.CoverageVersion, s2: "0000", n: 4))
1744 GenerateArg(Consumer, OptSpecifier: OPT_coverage_version_EQ,
1745 Value: StringRef(Opts.CoverageVersion, 4));
1746
1747 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely
1748 // '-fembed_bitcode', which does not map to any CompilerInvocation field and
1749 // won't be generated.)
1750
1751 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) {
1752 std::string InstrBundle =
1753 serializeXRayInstrumentationBundle(S: Opts.XRayInstrumentationBundle);
1754 if (!InstrBundle.empty())
1755 GenerateArg(Consumer, OptSpecifier: OPT_fxray_instrumentation_bundle, Value: InstrBundle);
1756 }
1757
1758 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch)
1759 GenerateArg(Consumer, OptSpecifier: OPT_fcf_protection_EQ, Value: "full");
1760 else if (Opts.CFProtectionReturn)
1761 GenerateArg(Consumer, OptSpecifier: OPT_fcf_protection_EQ, Value: "return");
1762 else if (Opts.CFProtectionBranch)
1763 GenerateArg(Consumer, OptSpecifier: OPT_fcf_protection_EQ, Value: "branch");
1764
1765 if (Opts.CFProtectionBranch) {
1766 switch (Opts.getCFBranchLabelScheme()) {
1767 case CFBranchLabelSchemeKind::Default:
1768 break;
1769#define CF_BRANCH_LABEL_SCHEME(Kind, FlagVal) \
1770 case CFBranchLabelSchemeKind::Kind: \
1771 GenerateArg(Consumer, OPT_mcf_branch_label_scheme_EQ, #FlagVal); \
1772 break;
1773#include "clang/Basic/CFProtectionOptions.def"
1774 }
1775 }
1776
1777 if (Opts.FunctionReturnThunks)
1778 GenerateArg(Consumer, OptSpecifier: OPT_mfunction_return_EQ, Value: "thunk-extern");
1779
1780 for (const auto &F : Opts.LinkBitcodeFiles) {
1781 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded &&
1782 F.PropagateAttrs && F.Internalize;
1783 GenerateArg(Consumer,
1784 OptSpecifier: Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file,
1785 Value: F.Filename);
1786 }
1787
1788 if (Opts.EmulatedTLS)
1789 GenerateArg(Consumer, OptSpecifier: OPT_femulated_tls);
1790
1791 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE())
1792 GenerateArg(Consumer, OptSpecifier: OPT_fdenormal_fp_math_EQ, Value: Opts.FPDenormalMode.str());
1793
1794 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) ||
1795 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE()))
1796 GenerateArg(Consumer, OptSpecifier: OPT_fdenormal_fp_math_f32_EQ,
1797 Value: Opts.FP32DenormalMode.str());
1798
1799 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) {
1800 OptSpecifier Opt =
1801 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return;
1802 GenerateArg(Consumer, OptSpecifier: Opt);
1803 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) {
1804 OptSpecifier Opt =
1805 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return;
1806 GenerateArg(Consumer, OptSpecifier: Opt);
1807 }
1808
1809 if (Opts.EnableAIXExtendedAltivecABI)
1810 GenerateArg(Consumer, OptSpecifier: OPT_mabi_EQ_vec_extabi);
1811
1812 if (Opts.XCOFFReadOnlyPointers)
1813 GenerateArg(Consumer, OptSpecifier: OPT_mxcoff_roptr);
1814
1815 if (!Opts.OptRecordPasses.empty())
1816 GenerateArg(Consumer, OptSpecifier: OPT_opt_record_passes, Value: Opts.OptRecordPasses);
1817
1818 if (!Opts.OptRecordFormat.empty())
1819 GenerateArg(Consumer, OptSpecifier: OPT_opt_record_format, Value: Opts.OptRecordFormat);
1820
1821 GenerateOptimizationRemark(Consumer, OptEQ: OPT_Rpass_EQ, Name: "pass",
1822 Remark: Opts.OptimizationRemark);
1823
1824 GenerateOptimizationRemark(Consumer, OptEQ: OPT_Rpass_missed_EQ, Name: "pass-missed",
1825 Remark: Opts.OptimizationRemarkMissed);
1826
1827 GenerateOptimizationRemark(Consumer, OptEQ: OPT_Rpass_analysis_EQ, Name: "pass-analysis",
1828 Remark: Opts.OptimizationRemarkAnalysis);
1829
1830 GenerateArg(Consumer, OptSpecifier: OPT_fdiagnostics_hotness_threshold_EQ,
1831 Value: Opts.DiagnosticsHotnessThreshold
1832 ? Twine(*Opts.DiagnosticsHotnessThreshold)
1833 : "auto");
1834
1835 GenerateArg(Consumer, OptSpecifier: OPT_fdiagnostics_misexpect_tolerance_EQ,
1836 Value: Twine(*Opts.DiagnosticsMisExpectTolerance));
1837
1838 for (StringRef Sanitizer : serializeSanitizerKinds(S: Opts.SanitizeRecover))
1839 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_recover_EQ, Value: Sanitizer);
1840
1841 for (StringRef Sanitizer : serializeSanitizerKinds(S: Opts.SanitizeTrap))
1842 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_trap_EQ, Value: Sanitizer);
1843
1844 for (StringRef Sanitizer :
1845 serializeSanitizerKinds(S: Opts.SanitizeMergeHandlers))
1846 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_merge_handlers_EQ, Value: Sanitizer);
1847
1848 SmallVector<std::string, 4> Values;
1849 serializeSanitizerMaskCutoffs(Cutoffs: Opts.SanitizeSkipHotCutoffs, Values);
1850 for (std::string Sanitizer : Values)
1851 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_skip_hot_cutoff_EQ, Value: Sanitizer);
1852
1853 if (Opts.AllowRuntimeCheckSkipHotCutoff) {
1854 GenerateArg(Consumer, OptSpecifier: OPT_fallow_runtime_check_skip_hot_cutoff_EQ,
1855 Value: std::to_string(val: *Opts.AllowRuntimeCheckSkipHotCutoff));
1856 }
1857
1858 for (StringRef Sanitizer :
1859 serializeSanitizerKinds(S: Opts.SanitizeAnnotateDebugInfo))
1860 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_annotate_debug_info_EQ, Value: Sanitizer);
1861
1862 if (!Opts.EmitVersionIdentMetadata)
1863 GenerateArg(Consumer, OptSpecifier: OPT_Qn);
1864
1865 switch (Opts.FiniteLoops) {
1866 case CodeGenOptions::FiniteLoopsKind::Language:
1867 break;
1868 case CodeGenOptions::FiniteLoopsKind::Always:
1869 GenerateArg(Consumer, OptSpecifier: OPT_ffinite_loops);
1870 break;
1871 case CodeGenOptions::FiniteLoopsKind::Never:
1872 GenerateArg(Consumer, OptSpecifier: OPT_fno_finite_loops);
1873 break;
1874 }
1875
1876 if (Opts.StaticClosure)
1877 GenerateArg(Consumer, OptSpecifier: OPT_static_libclosure);
1878}
1879
1880bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args,
1881 InputKind IK,
1882 DiagnosticsEngine &Diags,
1883 const llvm::Triple &T,
1884 const std::string &OutputFile,
1885 const LangOptions &LangOptsRef) {
1886 unsigned NumErrorsBefore = Diags.getNumErrors();
1887
1888 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags);
1889 // TODO: This could be done in Driver
1890 unsigned MaxOptLevel = 3;
1891 if (OptimizationLevel > MaxOptLevel) {
1892 // If the optimization level is not supported, fall back on the default
1893 // optimization
1894 Diags.Report(DiagID: diag::warn_drv_optimization_value)
1895 << Args.getLastArg(Ids: OPT_O)->getAsString(Args) << "-O" << MaxOptLevel;
1896 OptimizationLevel = MaxOptLevel;
1897 }
1898 Opts.OptimizationLevel = OptimizationLevel;
1899
1900 // The key paths of codegen options defined in Options.td start with
1901 // "CodeGenOpts.". Let's provide the expected variable name and type.
1902 CodeGenOptions &CodeGenOpts = Opts;
1903 // Some codegen options depend on language options. Let's provide the expected
1904 // variable name and type.
1905 const LangOptions *LangOpts = &LangOptsRef;
1906
1907#define CODEGEN_OPTION_WITH_MARSHALLING(...) \
1908 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
1909#include "clang/Driver/Options.inc"
1910#undef CODEGEN_OPTION_WITH_MARSHALLING
1911
1912 // At O0 we want to fully disable inlining outside of cases marked with
1913 // 'alwaysinline' that are required for correctness.
1914 if (Opts.OptimizationLevel == 0) {
1915 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining);
1916 } else if (const Arg *A = Args.getLastArg(Ids: options::OPT_finline_functions,
1917 Ids: options::OPT_finline_hint_functions,
1918 Ids: options::OPT_fno_inline_functions,
1919 Ids: options::OPT_fno_inline)) {
1920 // Explicit inlining flags can disable some or all inlining even at
1921 // optimization levels above zero.
1922 if (A->getOption().matches(ID: options::OPT_finline_functions))
1923 Opts.setInlining(CodeGenOptions::NormalInlining);
1924 else if (A->getOption().matches(ID: options::OPT_finline_hint_functions))
1925 Opts.setInlining(CodeGenOptions::OnlyHintInlining);
1926 else
1927 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining);
1928 } else {
1929 Opts.setInlining(CodeGenOptions::NormalInlining);
1930 }
1931
1932 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to
1933 // -fdirect-access-external-data.
1934 Opts.DirectAccessExternalData =
1935 Args.hasArg(Ids: OPT_fdirect_access_external_data) ||
1936 (!Args.hasArg(Ids: OPT_fno_direct_access_external_data) &&
1937 LangOpts->PICLevel == 0);
1938
1939 if (Arg *A = Args.getLastArg(Ids: OPT_debug_info_kind_EQ)) {
1940 unsigned Val =
1941 llvm::StringSwitch<unsigned>(A->getValue())
1942 .Case(S: "line-tables-only", Value: llvm::codegenoptions::DebugLineTablesOnly)
1943 .Case(S: "line-directives-only",
1944 Value: llvm::codegenoptions::DebugDirectivesOnly)
1945 .Case(S: "constructor", Value: llvm::codegenoptions::DebugInfoConstructor)
1946 .Case(S: "limited", Value: llvm::codegenoptions::LimitedDebugInfo)
1947 .Case(S: "standalone", Value: llvm::codegenoptions::FullDebugInfo)
1948 .Case(S: "unused-types", Value: llvm::codegenoptions::UnusedTypeInfo)
1949 .Default(Value: ~0U);
1950 if (Val == ~0U)
1951 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args)
1952 << A->getValue();
1953 else
1954 Opts.setDebugInfo(static_cast<llvm::codegenoptions::DebugInfoKind>(Val));
1955 }
1956
1957 // If -fuse-ctor-homing is set and limited debug info is already on, then use
1958 // constructor homing, and vice versa for -fno-use-ctor-homing.
1959 if (const Arg *A =
1960 Args.getLastArg(Ids: OPT_fuse_ctor_homing, Ids: OPT_fno_use_ctor_homing)) {
1961 if (A->getOption().matches(ID: OPT_fuse_ctor_homing) &&
1962 Opts.getDebugInfo() == llvm::codegenoptions::LimitedDebugInfo)
1963 Opts.setDebugInfo(llvm::codegenoptions::DebugInfoConstructor);
1964 if (A->getOption().matches(ID: OPT_fno_use_ctor_homing) &&
1965 Opts.getDebugInfo() == llvm::codegenoptions::DebugInfoConstructor)
1966 Opts.setDebugInfo(llvm::codegenoptions::LimitedDebugInfo);
1967 }
1968
1969 for (const auto &Arg : Args.getAllArgValues(Id: OPT_fdebug_prefix_map_EQ)) {
1970 auto Split = StringRef(Arg).split(Separator: '=');
1971 Opts.DebugPrefixMap.emplace_back(Args&: Split.first, Args&: Split.second);
1972 }
1973
1974 for (const auto &Arg : Args.getAllArgValues(Id: OPT_fcoverage_prefix_map_EQ)) {
1975 auto Split = StringRef(Arg).split(Separator: '=');
1976 Opts.CoveragePrefixMap.emplace_back(Args&: Split.first, Args&: Split.second);
1977 }
1978
1979 const llvm::Triple::ArchType DebugEntryValueArchs[] = {
1980 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64,
1981 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips,
1982 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el};
1983
1984 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() &&
1985 llvm::is_contained(Range: DebugEntryValueArchs, Element: T.getArch()))
1986 Opts.EmitCallSiteInfo = true;
1987
1988 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) {
1989 Diags.Report(DiagID: diag::warn_ignoring_verify_debuginfo_preserve_export)
1990 << Opts.DIBugsReportFilePath;
1991 Opts.DIBugsReportFilePath = "";
1992 }
1993
1994 Opts.NewStructPathTBAA = !Args.hasArg(Ids: OPT_no_struct_path_tbaa) &&
1995 Args.hasArg(Ids: OPT_new_struct_path_tbaa);
1996 Opts.OptimizeSize = getOptimizationLevelSize(Args);
1997 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin;
1998 if (Opts.SimplifyLibCalls)
1999 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs;
2000 Opts.UnrollLoops =
2001 Args.hasFlag(Pos: OPT_funroll_loops, Neg: OPT_fno_unroll_loops,
2002 Default: (Opts.OptimizationLevel > 1));
2003 Opts.InterchangeLoops =
2004 Args.hasFlag(Pos: OPT_floop_interchange, Neg: OPT_fno_loop_interchange, Default: false);
2005 Opts.BinutilsVersion =
2006 std::string(Args.getLastArgValue(Id: OPT_fbinutils_version_EQ));
2007
2008 Opts.DebugTemplateAlias = Args.hasArg(Ids: OPT_gtemplate_alias);
2009
2010 Opts.DebugNameTable = static_cast<unsigned>(
2011 Args.hasArg(Ids: OPT_ggnu_pubnames)
2012 ? llvm::DICompileUnit::DebugNameTableKind::GNU
2013 : Args.hasArg(Ids: OPT_gpubnames)
2014 ? llvm::DICompileUnit::DebugNameTableKind::Default
2015 : llvm::DICompileUnit::DebugNameTableKind::None);
2016 if (const Arg *A = Args.getLastArg(Ids: OPT_gsimple_template_names_EQ)) {
2017 StringRef Value = A->getValue();
2018 if (Value != "simple" && Value != "mangled")
2019 Diags.Report(DiagID: diag::err_drv_unsupported_option_argument)
2020 << A->getSpelling() << A->getValue();
2021 Opts.setDebugSimpleTemplateNames(
2022 StringRef(A->getValue()) == "simple"
2023 ? llvm::codegenoptions::DebugTemplateNamesKind::Simple
2024 : llvm::codegenoptions::DebugTemplateNamesKind::Mangled);
2025 }
2026
2027 if (const Arg *A = Args.getLastArg(Ids: OPT_ftime_report, Ids: OPT_ftime_report_EQ,
2028 Ids: OPT_ftime_report_json)) {
2029 Opts.TimePasses = true;
2030
2031 // -ftime-report= is only for new pass manager.
2032 if (const Arg *EQ = Args.getLastArg(Ids: OPT_ftime_report_EQ)) {
2033 StringRef Val = EQ->getValue();
2034 if (Val == "per-pass")
2035 Opts.TimePassesPerRun = false;
2036 else if (Val == "per-pass-run")
2037 Opts.TimePassesPerRun = true;
2038 else
2039 Diags.Report(DiagID: diag::err_drv_invalid_value)
2040 << A->getAsString(Args) << A->getValue();
2041 }
2042
2043 if (Args.getLastArg(Ids: OPT_ftime_report_json))
2044 Opts.TimePassesJson = true;
2045 }
2046
2047 Opts.PrepareForLTO = false;
2048 Opts.PrepareForThinLTO = false;
2049 if (Arg *A = Args.getLastArg(Ids: OPT_flto_EQ)) {
2050 Opts.PrepareForLTO = true;
2051 StringRef S = A->getValue();
2052 if (S == "thin")
2053 Opts.PrepareForThinLTO = true;
2054 else if (S != "full")
2055 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args) << S;
2056 if (Args.hasArg(Ids: OPT_funified_lto))
2057 Opts.PrepareForThinLTO = true;
2058 }
2059 if (Arg *A = Args.getLastArg(Ids: OPT_fthinlto_index_EQ)) {
2060 if (IK.getLanguage() != Language::LLVM_IR)
2061 Diags.Report(DiagID: diag::err_drv_argument_only_allowed_with)
2062 << A->getAsString(Args) << "-x ir";
2063 Opts.ThinLTOIndexFile =
2064 std::string(Args.getLastArgValue(Id: OPT_fthinlto_index_EQ));
2065 }
2066 if (Arg *A = Args.getLastArg(Ids: OPT_save_temps_EQ))
2067 Opts.SaveTempsFilePrefix =
2068 llvm::StringSwitch<std::string>(A->getValue())
2069 .Case(S: "obj", Value: OutputFile)
2070 .Default(Value: llvm::sys::path::filename(path: OutputFile).str());
2071
2072 // The memory profile runtime appends the pid to make this name more unique.
2073 const char *MemProfileBasename = "memprof.profraw";
2074 if (Args.hasArg(Ids: OPT_fmemory_profile_EQ)) {
2075 SmallString<128> Path(Args.getLastArgValue(Id: OPT_fmemory_profile_EQ));
2076 llvm::sys::path::append(path&: Path, a: MemProfileBasename);
2077 Opts.MemoryProfileOutput = std::string(Path);
2078 } else if (Args.hasArg(Ids: OPT_fmemory_profile))
2079 Opts.MemoryProfileOutput = MemProfileBasename;
2080
2081 if (Opts.CoverageNotesFile.size() || Opts.CoverageDataFile.size()) {
2082 if (Args.hasArg(Ids: OPT_coverage_version_EQ)) {
2083 StringRef CoverageVersion = Args.getLastArgValue(Id: OPT_coverage_version_EQ);
2084 if (CoverageVersion.size() != 4) {
2085 Diags.Report(DiagID: diag::err_drv_invalid_value)
2086 << Args.getLastArg(Ids: OPT_coverage_version_EQ)->getAsString(Args)
2087 << CoverageVersion;
2088 } else {
2089 memcpy(dest: Opts.CoverageVersion, src: CoverageVersion.data(), n: 4);
2090 }
2091 }
2092 }
2093 // FIXME: For backend options that are not yet recorded as function
2094 // attributes in the IR, keep track of them so we can embed them in a
2095 // separate data section and use them when building the bitcode.
2096 for (const auto &A : Args) {
2097 // Do not encode output and input.
2098 if (A->getOption().getID() == options::OPT_o ||
2099 A->getOption().getID() == options::OPT_INPUT ||
2100 A->getOption().getID() == options::OPT_x ||
2101 A->getOption().getID() == options::OPT_fembed_bitcode ||
2102 A->getOption().matches(ID: options::OPT_W_Group))
2103 continue;
2104 ArgStringList ASL;
2105 A->render(Args, Output&: ASL);
2106 for (const auto &arg : ASL) {
2107 StringRef ArgStr(arg);
2108 llvm::append_range(C&: Opts.CmdArgs, R&: ArgStr);
2109 // using \00 to separate each commandline options.
2110 Opts.CmdArgs.push_back(x: '\0');
2111 }
2112 }
2113
2114 auto XRayInstrBundles =
2115 Args.getAllArgValues(Id: OPT_fxray_instrumentation_bundle);
2116 if (XRayInstrBundles.empty())
2117 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All;
2118 else
2119 for (const auto &A : XRayInstrBundles)
2120 parseXRayInstrumentationBundle(FlagName: "-fxray-instrumentation-bundle=", Bundle: A, Args,
2121 D&: Diags, S&: Opts.XRayInstrumentationBundle);
2122
2123 if (const Arg *A = Args.getLastArg(Ids: OPT_fcf_protection_EQ)) {
2124 StringRef Name = A->getValue();
2125 if (Name == "full") {
2126 Opts.CFProtectionReturn = 1;
2127 Opts.CFProtectionBranch = 1;
2128 } else if (Name == "return")
2129 Opts.CFProtectionReturn = 1;
2130 else if (Name == "branch")
2131 Opts.CFProtectionBranch = 1;
2132 else if (Name != "none")
2133 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
2134 }
2135
2136 if (Opts.CFProtectionBranch && T.isRISCV()) {
2137 if (const Arg *A = Args.getLastArg(Ids: OPT_mcf_branch_label_scheme_EQ)) {
2138 const auto Scheme =
2139 llvm::StringSwitch<CFBranchLabelSchemeKind>(A->getValue())
2140#define CF_BRANCH_LABEL_SCHEME(Kind, FlagVal) \
2141 .Case(#FlagVal, CFBranchLabelSchemeKind::Kind)
2142#include "clang/Basic/CFProtectionOptions.def"
2143 .Default(Value: CFBranchLabelSchemeKind::Default);
2144 if (Scheme != CFBranchLabelSchemeKind::Default)
2145 Opts.setCFBranchLabelScheme(Scheme);
2146 else
2147 Diags.Report(DiagID: diag::err_drv_invalid_value)
2148 << A->getAsString(Args) << A->getValue();
2149 }
2150 }
2151
2152 if (const Arg *A = Args.getLastArg(Ids: OPT_mfunction_return_EQ)) {
2153 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue())
2154 .Case(S: "keep", Value: llvm::FunctionReturnThunksKind::Keep)
2155 .Case(S: "thunk-extern", Value: llvm::FunctionReturnThunksKind::Extern)
2156 .Default(Value: llvm::FunctionReturnThunksKind::Invalid);
2157 // SystemZ might want to add support for "expolines."
2158 if (!T.isX86())
2159 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
2160 << A->getSpelling() << T.getTriple();
2161 else if (Val == llvm::FunctionReturnThunksKind::Invalid)
2162 Diags.Report(DiagID: diag::err_drv_invalid_value)
2163 << A->getAsString(Args) << A->getValue();
2164 else if (Val == llvm::FunctionReturnThunksKind::Extern &&
2165 Args.getLastArgValue(Id: OPT_mcmodel_EQ) == "large")
2166 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
2167 << A->getAsString(Args)
2168 << Args.getLastArg(Ids: OPT_mcmodel_EQ)->getAsString(Args);
2169 else
2170 Opts.FunctionReturnThunks = static_cast<unsigned>(Val);
2171 }
2172
2173 for (auto *A :
2174 Args.filtered(Ids: OPT_mlink_bitcode_file, Ids: OPT_mlink_builtin_bitcode)) {
2175 CodeGenOptions::BitcodeFileToLink F;
2176 F.Filename = A->getValue();
2177 if (A->getOption().matches(ID: OPT_mlink_builtin_bitcode)) {
2178 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded;
2179 // When linking CUDA bitcode, propagate function attributes so that
2180 // e.g. libdevice gets fast-math attrs if we're building with fast-math.
2181 F.PropagateAttrs = true;
2182 F.Internalize = true;
2183 }
2184 Opts.LinkBitcodeFiles.push_back(x: F);
2185 }
2186
2187 if (Arg *A = Args.getLastArg(Ids: OPT_fdenormal_fp_math_EQ)) {
2188 StringRef Val = A->getValue();
2189 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Str: Val);
2190 Opts.FP32DenormalMode = Opts.FPDenormalMode;
2191 if (!Opts.FPDenormalMode.isValid())
2192 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
2193 }
2194
2195 if (Arg *A = Args.getLastArg(Ids: OPT_fdenormal_fp_math_f32_EQ)) {
2196 StringRef Val = A->getValue();
2197 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Str: Val);
2198 if (!Opts.FP32DenormalMode.isValid())
2199 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
2200 }
2201
2202 // X86_32 has -fppc-struct-return and -freg-struct-return.
2203 // PPC32 has -maix-struct-return and -msvr4-struct-return.
2204 if (Arg *A =
2205 Args.getLastArg(Ids: OPT_fpcc_struct_return, Ids: OPT_freg_struct_return,
2206 Ids: OPT_maix_struct_return, Ids: OPT_msvr4_struct_return)) {
2207 // TODO: We might want to consider enabling these options on AIX in the
2208 // future.
2209 if (T.isOSAIX())
2210 Diags.Report(DiagID: diag::err_drv_unsupported_opt_for_target)
2211 << A->getSpelling() << T.str();
2212
2213 const Option &O = A->getOption();
2214 if (O.matches(ID: OPT_fpcc_struct_return) ||
2215 O.matches(ID: OPT_maix_struct_return)) {
2216 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack);
2217 } else {
2218 assert(O.matches(OPT_freg_struct_return) ||
2219 O.matches(OPT_msvr4_struct_return));
2220 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs);
2221 }
2222 }
2223
2224 if (Arg *A = Args.getLastArg(Ids: OPT_mxcoff_roptr)) {
2225 if (!T.isOSAIX())
2226 Diags.Report(DiagID: diag::err_drv_unsupported_opt_for_target)
2227 << A->getSpelling() << T.str();
2228
2229 // Since the storage mapping class is specified per csect,
2230 // without using data sections, it is less effective to use read-only
2231 // pointers. Using read-only pointers may cause other RO variables in the
2232 // same csect to become RW when the linker acts upon `-bforceimprw`;
2233 // therefore, we require that separate data sections
2234 // are used when `-mxcoff-roptr` is in effect. We respect the setting of
2235 // data-sections since we have not found reasons to do otherwise that
2236 // overcome the user surprise of not respecting the setting.
2237 if (!Args.hasFlag(Pos: OPT_fdata_sections, Neg: OPT_fno_data_sections, Default: false))
2238 Diags.Report(DiagID: diag::err_roptr_requires_data_sections);
2239
2240 Opts.XCOFFReadOnlyPointers = true;
2241 }
2242
2243 if (Arg *A = Args.getLastArg(Ids: OPT_mabi_EQ_quadword_atomics)) {
2244 if (!T.isOSAIX() || T.isPPC32())
2245 Diags.Report(DiagID: diag::err_drv_unsupported_opt_for_target)
2246 << A->getSpelling() << T.str();
2247 }
2248
2249 bool NeedLocTracking = false;
2250
2251 if (!Opts.OptRecordFile.empty())
2252 NeedLocTracking = true;
2253
2254 if (Arg *A = Args.getLastArg(Ids: OPT_opt_record_passes)) {
2255 Opts.OptRecordPasses = A->getValue();
2256 NeedLocTracking = true;
2257 }
2258
2259 if (Arg *A = Args.getLastArg(Ids: OPT_opt_record_format)) {
2260 Opts.OptRecordFormat = A->getValue();
2261 NeedLocTracking = true;
2262 }
2263
2264 Opts.OptimizationRemark =
2265 ParseOptimizationRemark(Diags, Args, OptEQ: OPT_Rpass_EQ, Name: "pass");
2266
2267 Opts.OptimizationRemarkMissed =
2268 ParseOptimizationRemark(Diags, Args, OptEQ: OPT_Rpass_missed_EQ, Name: "pass-missed");
2269
2270 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark(
2271 Diags, Args, OptEQ: OPT_Rpass_analysis_EQ, Name: "pass-analysis");
2272
2273 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() ||
2274 Opts.OptimizationRemarkMissed.hasValidPattern() ||
2275 Opts.OptimizationRemarkAnalysis.hasValidPattern();
2276
2277 bool UsingSampleProfile = !Opts.SampleProfileFile.empty();
2278 bool UsingProfile =
2279 UsingSampleProfile || !Opts.ProfileInstrumentUsePath.empty();
2280
2281 if (Opts.DiagnosticsWithHotness && !UsingProfile &&
2282 // An IR file will contain PGO as metadata
2283 IK.getLanguage() != Language::LLVM_IR)
2284 Diags.Report(DiagID: diag::warn_drv_diagnostics_hotness_requires_pgo)
2285 << "-fdiagnostics-show-hotness";
2286
2287 // Parse remarks hotness threshold. Valid value is either integer or 'auto'.
2288 if (auto *arg =
2289 Args.getLastArg(Ids: options::OPT_fdiagnostics_hotness_threshold_EQ)) {
2290 auto ResultOrErr =
2291 llvm::remarks::parseHotnessThresholdOption(Arg: arg->getValue());
2292
2293 if (!ResultOrErr) {
2294 Diags.Report(DiagID: diag::err_drv_invalid_diagnotics_hotness_threshold)
2295 << "-fdiagnostics-hotness-threshold=";
2296 } else {
2297 Opts.DiagnosticsHotnessThreshold = *ResultOrErr;
2298 if ((!Opts.DiagnosticsHotnessThreshold ||
2299 *Opts.DiagnosticsHotnessThreshold > 0) &&
2300 !UsingProfile)
2301 Diags.Report(DiagID: diag::warn_drv_diagnostics_hotness_requires_pgo)
2302 << "-fdiagnostics-hotness-threshold=";
2303 }
2304 }
2305
2306 if (auto *arg =
2307 Args.getLastArg(Ids: options::OPT_fdiagnostics_misexpect_tolerance_EQ)) {
2308 auto ResultOrErr = parseToleranceOption(Arg: arg->getValue());
2309
2310 if (!ResultOrErr) {
2311 Diags.Report(DiagID: diag::err_drv_invalid_diagnotics_misexpect_tolerance)
2312 << "-fdiagnostics-misexpect-tolerance=";
2313 } else {
2314 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr;
2315 if ((!Opts.DiagnosticsMisExpectTolerance ||
2316 *Opts.DiagnosticsMisExpectTolerance > 0) &&
2317 !UsingProfile)
2318 Diags.Report(DiagID: diag::warn_drv_diagnostics_misexpect_requires_pgo)
2319 << "-fdiagnostics-misexpect-tolerance=";
2320 }
2321 }
2322
2323 // If the user requested to use a sample profile for PGO, then the
2324 // backend will need to track source location information so the profile
2325 // can be incorporated into the IR.
2326 if (UsingSampleProfile)
2327 NeedLocTracking = true;
2328
2329 if (!Opts.StackUsageOutput.empty())
2330 NeedLocTracking = true;
2331
2332 // If the user requested a flag that requires source locations available in
2333 // the backend, make sure that the backend tracks source location information.
2334 if (NeedLocTracking &&
2335 Opts.getDebugInfo() == llvm::codegenoptions::NoDebugInfo)
2336 Opts.setDebugInfo(llvm::codegenoptions::LocTrackingOnly);
2337
2338 // Parse -fsanitize-recover= arguments.
2339 // FIXME: Report unrecoverable sanitizers incorrectly specified here.
2340 parseSanitizerKinds(FlagName: "-fsanitize-recover=",
2341 Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_recover_EQ), Diags,
2342 S&: Opts.SanitizeRecover);
2343 parseSanitizerKinds(FlagName: "-fsanitize-trap=",
2344 Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_trap_EQ), Diags,
2345 S&: Opts.SanitizeTrap);
2346 parseSanitizerKinds(FlagName: "-fsanitize-merge=",
2347 Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_merge_handlers_EQ),
2348 Diags, S&: Opts.SanitizeMergeHandlers);
2349
2350 // Parse -fsanitize-skip-hot-cutoff= arguments.
2351 Opts.SanitizeSkipHotCutoffs = parseSanitizerWeightedKinds(
2352 FlagName: "-fsanitize-skip-hot-cutoff=",
2353 Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_skip_hot_cutoff_EQ), Diags);
2354
2355 parseSanitizerKinds(
2356 FlagName: "-fsanitize-annotate-debug-info=",
2357 Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_annotate_debug_info_EQ), Diags,
2358 S&: Opts.SanitizeAnnotateDebugInfo);
2359
2360 if (StringRef V =
2361 Args.getLastArgValue(Id: OPT_fallow_runtime_check_skip_hot_cutoff_EQ);
2362 !V.empty()) {
2363 double A;
2364 if (V.getAsDouble(Result&: A) || A < 0.0 || A > 1.0) {
2365 Diags.Report(DiagID: diag::err_drv_invalid_value)
2366 << "-fallow-runtime-check-skip-hot-cutoff=" << V;
2367 } else {
2368 Opts.AllowRuntimeCheckSkipHotCutoff = A;
2369 }
2370 }
2371
2372 Opts.EmitVersionIdentMetadata = Args.hasFlag(Pos: OPT_Qy, Neg: OPT_Qn, Default: true);
2373
2374 if (!LangOpts->CUDAIsDevice)
2375 parsePointerAuthOptions(Opts&: Opts.PointerAuth, LangOpts: *LangOpts, Triple: T, Diags);
2376
2377 if (Args.hasArg(Ids: options::OPT_ffinite_loops))
2378 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always;
2379 else if (Args.hasArg(Ids: options::OPT_fno_finite_loops))
2380 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never;
2381
2382 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag(
2383 Pos: options::OPT_mamdgpu_ieee, Neg: options::OPT_mno_amdgpu_ieee, Default: true);
2384 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs)
2385 Diags.Report(DiagID: diag::err_drv_amdgpu_ieee_without_no_honor_nans);
2386
2387 Opts.StaticClosure = Args.hasArg(Ids: options::OPT_static_libclosure);
2388
2389 return Diags.getNumErrors() == NumErrorsBefore;
2390}
2391
2392static void GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts,
2393 ArgumentConsumer Consumer) {
2394 const DependencyOutputOptions &DependencyOutputOpts = Opts;
2395#define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \
2396 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
2397#include "clang/Driver/Options.inc"
2398#undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING
2399
2400 if (Opts.ShowIncludesDest != ShowIncludesDestination::None)
2401 GenerateArg(Consumer, OptSpecifier: OPT_show_includes);
2402
2403 for (const auto &Dep : Opts.ExtraDeps) {
2404 switch (Dep.second) {
2405 case EDK_SanitizeIgnorelist:
2406 // Sanitizer ignorelist arguments are generated from LanguageOptions.
2407 continue;
2408 case EDK_ModuleFile:
2409 // Module file arguments are generated from FrontendOptions and
2410 // HeaderSearchOptions.
2411 continue;
2412 case EDK_ProfileList:
2413 // Profile list arguments are generated from LanguageOptions via the
2414 // marshalling infrastructure.
2415 continue;
2416 case EDK_DepFileEntry:
2417 GenerateArg(Consumer, OptSpecifier: OPT_fdepfile_entry, Value: Dep.first);
2418 break;
2419 }
2420 }
2421}
2422
2423static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
2424 ArgList &Args, DiagnosticsEngine &Diags,
2425 frontend::ActionKind Action,
2426 bool ShowLineMarkers) {
2427 unsigned NumErrorsBefore = Diags.getNumErrors();
2428
2429 DependencyOutputOptions &DependencyOutputOpts = Opts;
2430#define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \
2431 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
2432#include "clang/Driver/Options.inc"
2433#undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING
2434
2435 if (Args.hasArg(Ids: OPT_show_includes)) {
2436 // Writing both /showIncludes and preprocessor output to stdout
2437 // would produce interleaved output, so use stderr for /showIncludes.
2438 // This behaves the same as cl.exe, when /E, /EP or /P are passed.
2439 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers)
2440 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr;
2441 else
2442 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout;
2443 } else {
2444 Opts.ShowIncludesDest = ShowIncludesDestination::None;
2445 }
2446
2447 // Add sanitizer ignorelists as extra dependencies.
2448 // They won't be discovered by the regular preprocessor, so
2449 // we let make / ninja to know about this implicit dependency.
2450 if (!Args.hasArg(Ids: OPT_fno_sanitize_ignorelist)) {
2451 for (const auto *A : Args.filtered(Ids: OPT_fsanitize_ignorelist_EQ)) {
2452 StringRef Val = A->getValue();
2453 if (!Val.contains(C: '='))
2454 Opts.ExtraDeps.emplace_back(args: std::string(Val), args: EDK_SanitizeIgnorelist);
2455 }
2456 if (Opts.IncludeSystemHeaders) {
2457 for (const auto *A : Args.filtered(Ids: OPT_fsanitize_system_ignorelist_EQ)) {
2458 StringRef Val = A->getValue();
2459 if (!Val.contains(C: '='))
2460 Opts.ExtraDeps.emplace_back(args: std::string(Val), args: EDK_SanitizeIgnorelist);
2461 }
2462 }
2463 }
2464
2465 // -fprofile-list= dependencies.
2466 for (const auto &Filename : Args.getAllArgValues(Id: OPT_fprofile_list_EQ))
2467 Opts.ExtraDeps.emplace_back(args: Filename, args: EDK_ProfileList);
2468
2469 // Propagate the extra dependencies.
2470 for (const auto *A : Args.filtered(Ids: OPT_fdepfile_entry))
2471 Opts.ExtraDeps.emplace_back(args: A->getValue(), args: EDK_DepFileEntry);
2472
2473 // Only the -fmodule-file=<file> form.
2474 for (const auto *A : Args.filtered(Ids: OPT_fmodule_file)) {
2475 StringRef Val = A->getValue();
2476 if (!Val.contains(C: '='))
2477 Opts.ExtraDeps.emplace_back(args: std::string(Val), args: EDK_ModuleFile);
2478 }
2479
2480 // Check for invalid combinations of header-include-format
2481 // and header-include-filtering.
2482 if (Opts.HeaderIncludeFormat == HIFMT_Textual &&
2483 Opts.HeaderIncludeFiltering != HIFIL_None) {
2484 if (Args.hasArg(Ids: OPT_header_include_format_EQ))
2485 Diags.Report(DiagID: diag::err_drv_print_header_cc1_invalid_combination)
2486 << headerIncludeFormatKindToString(K: Opts.HeaderIncludeFormat)
2487 << headerIncludeFilteringKindToString(K: Opts.HeaderIncludeFiltering);
2488 else
2489 Diags.Report(DiagID: diag::err_drv_print_header_cc1_invalid_filtering)
2490 << headerIncludeFilteringKindToString(K: Opts.HeaderIncludeFiltering);
2491 } else if (Opts.HeaderIncludeFormat == HIFMT_JSON &&
2492 Opts.HeaderIncludeFiltering == HIFIL_None) {
2493 if (Args.hasArg(Ids: OPT_header_include_filtering_EQ))
2494 Diags.Report(DiagID: diag::err_drv_print_header_cc1_invalid_combination)
2495 << headerIncludeFormatKindToString(K: Opts.HeaderIncludeFormat)
2496 << headerIncludeFilteringKindToString(K: Opts.HeaderIncludeFiltering);
2497 else
2498 Diags.Report(DiagID: diag::err_drv_print_header_cc1_invalid_format)
2499 << headerIncludeFormatKindToString(K: Opts.HeaderIncludeFormat);
2500 }
2501
2502 return Diags.getNumErrors() == NumErrorsBefore;
2503}
2504
2505static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) {
2506 // Color diagnostics default to auto ("on" if terminal supports) in the driver
2507 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color.
2508 // Support both clang's -f[no-]color-diagnostics and gcc's
2509 // -f[no-]diagnostics-colors[=never|always|auto].
2510 enum {
2511 Colors_On,
2512 Colors_Off,
2513 Colors_Auto
2514 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off;
2515 for (auto *A : Args) {
2516 const Option &O = A->getOption();
2517 if (O.matches(ID: options::OPT_fcolor_diagnostics)) {
2518 ShowColors = Colors_On;
2519 } else if (O.matches(ID: options::OPT_fno_color_diagnostics)) {
2520 ShowColors = Colors_Off;
2521 } else if (O.matches(ID: options::OPT_fdiagnostics_color_EQ)) {
2522 StringRef Value(A->getValue());
2523 if (Value == "always")
2524 ShowColors = Colors_On;
2525 else if (Value == "never")
2526 ShowColors = Colors_Off;
2527 else if (Value == "auto")
2528 ShowColors = Colors_Auto;
2529 }
2530 }
2531 return ShowColors == Colors_On ||
2532 (ShowColors == Colors_Auto &&
2533 llvm::sys::Process::StandardErrHasColors());
2534}
2535
2536static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes,
2537 DiagnosticsEngine &Diags) {
2538 bool Success = true;
2539 for (const auto &Prefix : VerifyPrefixes) {
2540 // Every prefix must start with a letter and contain only alphanumeric
2541 // characters, hyphens, and underscores.
2542 auto BadChar = llvm::find_if(Range: Prefix, P: [](char C) {
2543 return !isAlphanumeric(c: C) && C != '-' && C != '_';
2544 });
2545 if (BadChar != Prefix.end() || !isLetter(c: Prefix[0])) {
2546 Success = false;
2547 Diags.Report(DiagID: diag::err_drv_invalid_value) << "-verify=" << Prefix;
2548 Diags.Report(DiagID: diag::note_drv_verify_prefix_spelling);
2549 }
2550 }
2551 return Success;
2552}
2553
2554static void GenerateFileSystemArgs(const FileSystemOptions &Opts,
2555 ArgumentConsumer Consumer) {
2556 const FileSystemOptions &FileSystemOpts = Opts;
2557
2558#define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \
2559 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
2560#include "clang/Driver/Options.inc"
2561#undef FILE_SYSTEM_OPTION_WITH_MARSHALLING
2562}
2563
2564static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args,
2565 DiagnosticsEngine &Diags) {
2566 unsigned NumErrorsBefore = Diags.getNumErrors();
2567
2568 FileSystemOptions &FileSystemOpts = Opts;
2569
2570#define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \
2571 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
2572#include "clang/Driver/Options.inc"
2573#undef FILE_SYSTEM_OPTION_WITH_MARSHALLING
2574
2575 return Diags.getNumErrors() == NumErrorsBefore;
2576}
2577
2578static void GenerateMigratorArgs(const MigratorOptions &Opts,
2579 ArgumentConsumer Consumer) {
2580 const MigratorOptions &MigratorOpts = Opts;
2581#define MIGRATOR_OPTION_WITH_MARSHALLING(...) \
2582 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
2583#include "clang/Driver/Options.inc"
2584#undef MIGRATOR_OPTION_WITH_MARSHALLING
2585}
2586
2587static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args,
2588 DiagnosticsEngine &Diags) {
2589 unsigned NumErrorsBefore = Diags.getNumErrors();
2590
2591 MigratorOptions &MigratorOpts = Opts;
2592
2593#define MIGRATOR_OPTION_WITH_MARSHALLING(...) \
2594 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
2595#include "clang/Driver/Options.inc"
2596#undef MIGRATOR_OPTION_WITH_MARSHALLING
2597
2598 return Diags.getNumErrors() == NumErrorsBefore;
2599}
2600
2601void CompilerInvocationBase::GenerateDiagnosticArgs(
2602 const DiagnosticOptions &Opts, ArgumentConsumer Consumer,
2603 bool DefaultDiagColor) {
2604 const DiagnosticOptions *DiagnosticOpts = &Opts;
2605#define DIAG_OPTION_WITH_MARSHALLING(...) \
2606 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
2607#include "clang/Driver/Options.inc"
2608#undef DIAG_OPTION_WITH_MARSHALLING
2609
2610 if (!Opts.DiagnosticSerializationFile.empty())
2611 GenerateArg(Consumer, OptSpecifier: OPT_diagnostic_serialized_file,
2612 Value: Opts.DiagnosticSerializationFile);
2613
2614 if (Opts.ShowColors)
2615 GenerateArg(Consumer, OptSpecifier: OPT_fcolor_diagnostics);
2616
2617 if (Opts.VerifyDiagnostics &&
2618 llvm::is_contained(Range: Opts.VerifyPrefixes, Element: "expected"))
2619 GenerateArg(Consumer, OptSpecifier: OPT_verify);
2620
2621 for (const auto &Prefix : Opts.VerifyPrefixes)
2622 if (Prefix != "expected")
2623 GenerateArg(Consumer, OptSpecifier: OPT_verify_EQ, Value: Prefix);
2624
2625 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected();
2626 if (VIU == DiagnosticLevelMask::None) {
2627 // This is the default, don't generate anything.
2628 } else if (VIU == DiagnosticLevelMask::All) {
2629 GenerateArg(Consumer, OptSpecifier: OPT_verify_ignore_unexpected);
2630 } else {
2631 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0)
2632 GenerateArg(Consumer, OptSpecifier: OPT_verify_ignore_unexpected_EQ, Value: "note");
2633 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0)
2634 GenerateArg(Consumer, OptSpecifier: OPT_verify_ignore_unexpected_EQ, Value: "remark");
2635 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0)
2636 GenerateArg(Consumer, OptSpecifier: OPT_verify_ignore_unexpected_EQ, Value: "warning");
2637 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0)
2638 GenerateArg(Consumer, OptSpecifier: OPT_verify_ignore_unexpected_EQ, Value: "error");
2639 }
2640
2641 for (const auto &Warning : Opts.Warnings) {
2642 // This option is automatically generated from UndefPrefixes.
2643 if (Warning == "undef-prefix")
2644 continue;
2645 // This option is automatically generated from CheckConstexprFunctionBodies.
2646 if (Warning == "invalid-constexpr" || Warning == "no-invalid-constexpr")
2647 continue;
2648 Consumer(StringRef("-W") + Warning);
2649 }
2650
2651 for (const auto &Remark : Opts.Remarks) {
2652 // These arguments are generated from OptimizationRemark fields of
2653 // CodeGenOptions.
2654 StringRef IgnoredRemarks[] = {"pass", "no-pass",
2655 "pass-analysis", "no-pass-analysis",
2656 "pass-missed", "no-pass-missed"};
2657 if (llvm::is_contained(Range&: IgnoredRemarks, Element: Remark))
2658 continue;
2659
2660 Consumer(StringRef("-R") + Remark);
2661 }
2662
2663 if (!Opts.DiagnosticSuppressionMappingsFile.empty()) {
2664 GenerateArg(Consumer, OptSpecifier: OPT_warning_suppression_mappings_EQ,
2665 Value: Opts.DiagnosticSuppressionMappingsFile);
2666 }
2667}
2668
2669std::unique_ptr<DiagnosticOptions>
2670clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) {
2671 auto DiagOpts = std::make_unique<DiagnosticOptions>();
2672 unsigned MissingArgIndex, MissingArgCount;
2673 InputArgList Args = getDriverOptTable().ParseArgs(
2674 Args: Argv.slice(N: 1), MissingArgIndex, MissingArgCount);
2675
2676 bool ShowColors = true;
2677 if (std::optional<std::string> NoColor =
2678 llvm::sys::Process::GetEnv(name: "NO_COLOR");
2679 NoColor && !NoColor->empty()) {
2680 // If the user set the NO_COLOR environment variable, we'll honor that
2681 // unless the command line overrides it.
2682 ShowColors = false;
2683 }
2684
2685 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs.
2686 // Any errors that would be diagnosed here will also be diagnosed later,
2687 // when the DiagnosticsEngine actually exists.
2688 (void)ParseDiagnosticArgs(Opts&: *DiagOpts, Args, /*Diags=*/nullptr, DefaultDiagColor: ShowColors);
2689 return DiagOpts;
2690}
2691
2692bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
2693 DiagnosticsEngine *Diags,
2694 bool DefaultDiagColor) {
2695 std::optional<DiagnosticOptions> IgnoringDiagOpts;
2696 std::optional<DiagnosticsEngine> IgnoringDiags;
2697 if (!Diags) {
2698 IgnoringDiagOpts.emplace();
2699 IgnoringDiags.emplace(args: new DiagnosticIDs(), args&: *IgnoringDiagOpts,
2700 args: new IgnoringDiagConsumer());
2701 Diags = &*IgnoringDiags;
2702 }
2703
2704 unsigned NumErrorsBefore = Diags->getNumErrors();
2705
2706 // The key paths of diagnostic options defined in Options.td start with
2707 // "DiagnosticOpts->". Let's provide the expected variable name and type.
2708 DiagnosticOptions *DiagnosticOpts = &Opts;
2709
2710#define DIAG_OPTION_WITH_MARSHALLING(...) \
2711 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, __VA_ARGS__)
2712#include "clang/Driver/Options.inc"
2713#undef DIAG_OPTION_WITH_MARSHALLING
2714
2715 llvm::sys::Process::UseANSIEscapeCodes(enable: Opts.UseANSIEscapeCodes);
2716
2717 if (Arg *A =
2718 Args.getLastArg(Ids: OPT_diagnostic_serialized_file, Ids: OPT__serialize_diags))
2719 Opts.DiagnosticSerializationFile = A->getValue();
2720 Opts.ShowColors = parseShowColorsArgs(Args, DefaultColor: DefaultDiagColor);
2721
2722 Opts.VerifyDiagnostics = Args.hasArg(Ids: OPT_verify) || Args.hasArg(Ids: OPT_verify_EQ);
2723 Opts.VerifyPrefixes = Args.getAllArgValues(Id: OPT_verify_EQ);
2724 if (Args.hasArg(Ids: OPT_verify))
2725 Opts.VerifyPrefixes.push_back(x: "expected");
2726 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and
2727 // then sort it to prepare for fast lookup using std::binary_search.
2728 if (!checkVerifyPrefixes(VerifyPrefixes: Opts.VerifyPrefixes, Diags&: *Diags))
2729 Opts.VerifyDiagnostics = false;
2730 else
2731 llvm::sort(C&: Opts.VerifyPrefixes);
2732 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None;
2733 parseDiagnosticLevelMask(
2734 FlagName: "-verify-ignore-unexpected=",
2735 Levels: Args.getAllArgValues(Id: OPT_verify_ignore_unexpected_EQ), Diags&: *Diags, M&: DiagMask);
2736 if (Args.hasArg(Ids: OPT_verify_ignore_unexpected))
2737 DiagMask = DiagnosticLevelMask::All;
2738 Opts.setVerifyIgnoreUnexpected(DiagMask);
2739 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
2740 Diags->Report(DiagID: diag::warn_ignoring_ftabstop_value)
2741 << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
2742 Opts.TabStop = DiagnosticOptions::DefaultTabStop;
2743 }
2744
2745 if (const Arg *A = Args.getLastArg(Ids: OPT_warning_suppression_mappings_EQ))
2746 Opts.DiagnosticSuppressionMappingsFile = A->getValue();
2747
2748 addDiagnosticArgs(Args, Group: OPT_W_Group, GroupWithValue: OPT_W_value_Group, Diagnostics&: Opts.Warnings);
2749 addDiagnosticArgs(Args, Group: OPT_R_Group, GroupWithValue: OPT_R_value_Group, Diagnostics&: Opts.Remarks);
2750
2751 return Diags->getNumErrors() == NumErrorsBefore;
2752}
2753
2754/// Parse the argument to the -ftest-module-file-extension
2755/// command-line argument.
2756///
2757/// \returns true on error, false on success.
2758static bool parseTestModuleFileExtensionArg(StringRef Arg,
2759 std::string &BlockName,
2760 unsigned &MajorVersion,
2761 unsigned &MinorVersion,
2762 bool &Hashed,
2763 std::string &UserInfo) {
2764 SmallVector<StringRef, 5> Args;
2765 Arg.split(A&: Args, Separator: ':', MaxSplit: 5);
2766 if (Args.size() < 5)
2767 return true;
2768
2769 BlockName = std::string(Args[0]);
2770 if (Args[1].getAsInteger(Radix: 10, Result&: MajorVersion)) return true;
2771 if (Args[2].getAsInteger(Radix: 10, Result&: MinorVersion)) return true;
2772 if (Args[3].getAsInteger(Radix: 2, Result&: Hashed)) return true;
2773 if (Args.size() > 4)
2774 UserInfo = std::string(Args[4]);
2775 return false;
2776}
2777
2778/// Return a table that associates command line option specifiers with the
2779/// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is
2780/// intentionally missing, as this case is handled separately from other
2781/// frontend options.
2782static const auto &getFrontendActionTable() {
2783 static const std::pair<frontend::ActionKind, unsigned> Table[] = {
2784 {frontend::ASTDeclList, OPT_ast_list},
2785
2786 {frontend::ASTDump, OPT_ast_dump_all_EQ},
2787 {frontend::ASTDump, OPT_ast_dump_all},
2788 {frontend::ASTDump, OPT_ast_dump_EQ},
2789 {frontend::ASTDump, OPT_ast_dump},
2790 {frontend::ASTDump, OPT_ast_dump_lookups},
2791 {frontend::ASTDump, OPT_ast_dump_decl_types},
2792
2793 {frontend::ASTPrint, OPT_ast_print},
2794 {frontend::ASTView, OPT_ast_view},
2795 {frontend::DumpCompilerOptions, OPT_compiler_options_dump},
2796 {frontend::DumpRawTokens, OPT_dump_raw_tokens},
2797 {frontend::DumpTokens, OPT_dump_tokens},
2798 {frontend::EmitAssembly, OPT_S},
2799 {frontend::EmitBC, OPT_emit_llvm_bc},
2800 {frontend::EmitCIR, OPT_emit_cir},
2801 {frontend::EmitHTML, OPT_emit_html},
2802 {frontend::EmitLLVM, OPT_emit_llvm},
2803 {frontend::EmitLLVMOnly, OPT_emit_llvm_only},
2804 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only},
2805 {frontend::EmitObj, OPT_emit_obj},
2806 {frontend::ExtractAPI, OPT_extract_api},
2807
2808 {frontend::FixIt, OPT_fixit_EQ},
2809 {frontend::FixIt, OPT_fixit},
2810
2811 {frontend::GenerateModule, OPT_emit_module},
2812 {frontend::GenerateModuleInterface, OPT_emit_module_interface},
2813 {frontend::GenerateReducedModuleInterface,
2814 OPT_emit_reduced_module_interface},
2815 {frontend::GenerateHeaderUnit, OPT_emit_header_unit},
2816 {frontend::GeneratePCH, OPT_emit_pch},
2817 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs},
2818 {frontend::InitOnly, OPT_init_only},
2819 {frontend::ParseSyntaxOnly, OPT_fsyntax_only},
2820 {frontend::ModuleFileInfo, OPT_module_file_info},
2821 {frontend::VerifyPCH, OPT_verify_pch},
2822 {frontend::PrintPreamble, OPT_print_preamble},
2823 {frontend::PrintPreprocessedInput, OPT_E},
2824 {frontend::TemplightDump, OPT_templight_dump},
2825 {frontend::RewriteMacros, OPT_rewrite_macros},
2826 {frontend::RewriteObjC, OPT_rewrite_objc},
2827 {frontend::RewriteTest, OPT_rewrite_test},
2828 {frontend::RunAnalysis, OPT_analyze},
2829 {frontend::RunPreprocessorOnly, OPT_Eonly},
2830 {frontend::PrintDependencyDirectivesSourceMinimizerOutput,
2831 OPT_print_dependency_directives_minimized_source},
2832 };
2833
2834 return Table;
2835}
2836
2837/// Maps command line option to frontend action.
2838static std::optional<frontend::ActionKind>
2839getFrontendAction(OptSpecifier &Opt) {
2840 for (const auto &ActionOpt : getFrontendActionTable())
2841 if (ActionOpt.second == Opt.getID())
2842 return ActionOpt.first;
2843
2844 return std::nullopt;
2845}
2846
2847/// Maps frontend action to command line option.
2848static std::optional<OptSpecifier>
2849getProgramActionOpt(frontend::ActionKind ProgramAction) {
2850 for (const auto &ActionOpt : getFrontendActionTable())
2851 if (ActionOpt.first == ProgramAction)
2852 return OptSpecifier(ActionOpt.second);
2853
2854 return std::nullopt;
2855}
2856
2857static void GenerateFrontendArgs(const FrontendOptions &Opts,
2858 ArgumentConsumer Consumer, bool IsHeader) {
2859 const FrontendOptions &FrontendOpts = Opts;
2860#define FRONTEND_OPTION_WITH_MARSHALLING(...) \
2861 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
2862#include "clang/Driver/Options.inc"
2863#undef FRONTEND_OPTION_WITH_MARSHALLING
2864
2865 std::optional<OptSpecifier> ProgramActionOpt =
2866 getProgramActionOpt(ProgramAction: Opts.ProgramAction);
2867
2868 // Generating a simple flag covers most frontend actions.
2869 std::function<void()> GenerateProgramAction = [&]() {
2870 GenerateArg(Consumer, OptSpecifier: *ProgramActionOpt);
2871 };
2872
2873 if (!ProgramActionOpt) {
2874 // PluginAction is the only program action handled separately.
2875 assert(Opts.ProgramAction == frontend::PluginAction &&
2876 "Frontend action without option.");
2877 GenerateProgramAction = [&]() {
2878 GenerateArg(Consumer, OptSpecifier: OPT_plugin, Value: Opts.ActionName);
2879 };
2880 }
2881
2882 // FIXME: Simplify the complex 'AST dump' command line.
2883 if (Opts.ProgramAction == frontend::ASTDump) {
2884 GenerateProgramAction = [&]() {
2885 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via
2886 // marshalling infrastructure.
2887
2888 if (Opts.ASTDumpFormat != ADOF_Default) {
2889 StringRef Format;
2890 switch (Opts.ASTDumpFormat) {
2891 case ADOF_Default:
2892 llvm_unreachable("Default AST dump format.");
2893 case ADOF_JSON:
2894 Format = "json";
2895 break;
2896 }
2897
2898 if (Opts.ASTDumpAll)
2899 GenerateArg(Consumer, OptSpecifier: OPT_ast_dump_all_EQ, Value: Format);
2900 if (Opts.ASTDumpDecls)
2901 GenerateArg(Consumer, OptSpecifier: OPT_ast_dump_EQ, Value: Format);
2902 } else {
2903 if (Opts.ASTDumpAll)
2904 GenerateArg(Consumer, OptSpecifier: OPT_ast_dump_all);
2905 if (Opts.ASTDumpDecls)
2906 GenerateArg(Consumer, OptSpecifier: OPT_ast_dump);
2907 }
2908 };
2909 }
2910
2911 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) {
2912 GenerateProgramAction = [&]() {
2913 GenerateArg(Consumer, OptSpecifier: OPT_fixit_EQ, Value: Opts.FixItSuffix);
2914 };
2915 }
2916
2917 GenerateProgramAction();
2918
2919 for (const auto &PluginArgs : Opts.PluginArgs) {
2920 Option Opt = getDriverOptTable().getOption(Opt: OPT_plugin_arg);
2921 for (const auto &PluginArg : PluginArgs.second)
2922 denormalizeString(Consumer,
2923 Spelling: Opt.getPrefix() + Opt.getName() + PluginArgs.first,
2924 OptClass: Opt.getKind(), TableIndex: 0, Value: PluginArg);
2925 }
2926
2927 for (const auto &Ext : Opts.ModuleFileExtensions)
2928 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Val: Ext.get()))
2929 GenerateArg(Consumer, OptSpecifier: OPT_ftest_module_file_extension_EQ, Value: TestExt->str());
2930
2931 if (!Opts.CodeCompletionAt.FileName.empty())
2932 GenerateArg(Consumer, OptSpecifier: OPT_code_completion_at,
2933 Value: Opts.CodeCompletionAt.ToString());
2934
2935 for (const auto &Plugin : Opts.Plugins)
2936 GenerateArg(Consumer, OptSpecifier: OPT_load, Value: Plugin);
2937
2938 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction.
2939
2940 for (const auto &ModuleFile : Opts.ModuleFiles)
2941 GenerateArg(Consumer, OptSpecifier: OPT_fmodule_file, Value: ModuleFile);
2942
2943 if (Opts.AuxTargetCPU)
2944 GenerateArg(Consumer, OptSpecifier: OPT_aux_target_cpu, Value: *Opts.AuxTargetCPU);
2945
2946 if (Opts.AuxTargetFeatures)
2947 for (const auto &Feature : *Opts.AuxTargetFeatures)
2948 GenerateArg(Consumer, OptSpecifier: OPT_aux_target_feature, Value: Feature);
2949
2950 {
2951 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : "";
2952 StringRef ModuleMap =
2953 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : "";
2954 StringRef HeaderUnit = "";
2955 switch (Opts.DashX.getHeaderUnitKind()) {
2956 case InputKind::HeaderUnit_None:
2957 break;
2958 case InputKind::HeaderUnit_User:
2959 HeaderUnit = "-user";
2960 break;
2961 case InputKind::HeaderUnit_System:
2962 HeaderUnit = "-system";
2963 break;
2964 case InputKind::HeaderUnit_Abs:
2965 HeaderUnit = "-header-unit";
2966 break;
2967 }
2968 StringRef Header = IsHeader ? "-header" : "";
2969
2970 StringRef Lang;
2971 switch (Opts.DashX.getLanguage()) {
2972 case Language::C:
2973 Lang = "c";
2974 break;
2975 case Language::OpenCL:
2976 Lang = "cl";
2977 break;
2978 case Language::OpenCLCXX:
2979 Lang = "clcpp";
2980 break;
2981 case Language::CUDA:
2982 Lang = "cuda";
2983 break;
2984 case Language::HIP:
2985 Lang = "hip";
2986 break;
2987 case Language::CXX:
2988 Lang = "c++";
2989 break;
2990 case Language::ObjC:
2991 Lang = "objective-c";
2992 break;
2993 case Language::ObjCXX:
2994 Lang = "objective-c++";
2995 break;
2996 case Language::Asm:
2997 Lang = "assembler-with-cpp";
2998 break;
2999 case Language::Unknown:
3000 assert(Opts.DashX.getFormat() == InputKind::Precompiled &&
3001 "Generating -x argument for unknown language (not precompiled).");
3002 Lang = "ast";
3003 break;
3004 case Language::LLVM_IR:
3005 Lang = "ir";
3006 break;
3007 case Language::HLSL:
3008 Lang = "hlsl";
3009 break;
3010 case Language::CIR:
3011 Lang = "cir";
3012 break;
3013 }
3014
3015 GenerateArg(Consumer, OptSpecifier: OPT_x,
3016 Value: Lang + HeaderUnit + Header + ModuleMap + Preprocessed);
3017 }
3018
3019 // OPT_INPUT has a unique class, generate it directly.
3020 for (const auto &Input : Opts.Inputs)
3021 Consumer(Input.getFile());
3022}
3023
3024static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
3025 DiagnosticsEngine &Diags, bool &IsHeaderFile) {
3026 unsigned NumErrorsBefore = Diags.getNumErrors();
3027
3028 FrontendOptions &FrontendOpts = Opts;
3029
3030#define FRONTEND_OPTION_WITH_MARSHALLING(...) \
3031 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
3032#include "clang/Driver/Options.inc"
3033#undef FRONTEND_OPTION_WITH_MARSHALLING
3034
3035 Opts.ProgramAction = frontend::ParseSyntaxOnly;
3036 if (const Arg *A = Args.getLastArg(Ids: OPT_Action_Group)) {
3037 OptSpecifier Opt = OptSpecifier(A->getOption().getID());
3038 std::optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt);
3039 assert(ProgramAction && "Option specifier not in Action_Group.");
3040
3041 if (ProgramAction == frontend::ASTDump &&
3042 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) {
3043 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue())
3044 .CaseLower(S: "default", Value: ADOF_Default)
3045 .CaseLower(S: "json", Value: ADOF_JSON)
3046 .Default(Value: std::numeric_limits<unsigned>::max());
3047
3048 if (Val != std::numeric_limits<unsigned>::max())
3049 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val);
3050 else {
3051 Diags.Report(DiagID: diag::err_drv_invalid_value)
3052 << A->getAsString(Args) << A->getValue();
3053 Opts.ASTDumpFormat = ADOF_Default;
3054 }
3055 }
3056
3057 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ)
3058 Opts.FixItSuffix = A->getValue();
3059
3060 if (ProgramAction == frontend::GenerateInterfaceStubs) {
3061 StringRef ArgStr =
3062 Args.hasArg(Ids: OPT_interface_stub_version_EQ)
3063 ? Args.getLastArgValue(Id: OPT_interface_stub_version_EQ)
3064 : "ifs-v1";
3065 if (ArgStr == "experimental-yaml-elf-v1" ||
3066 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" ||
3067 ArgStr == "experimental-tapi-elf-v1") {
3068 std::string ErrorMessage =
3069 "Invalid interface stub format: " + ArgStr.str() +
3070 " is deprecated.";
3071 Diags.Report(DiagID: diag::err_drv_invalid_value)
3072 << "Must specify a valid interface stub format type, ie: "
3073 "-interface-stub-version=ifs-v1"
3074 << ErrorMessage;
3075 ProgramAction = frontend::ParseSyntaxOnly;
3076 } else if (!ArgStr.starts_with(Prefix: "ifs-")) {
3077 std::string ErrorMessage =
3078 "Invalid interface stub format: " + ArgStr.str() + ".";
3079 Diags.Report(DiagID: diag::err_drv_invalid_value)
3080 << "Must specify a valid interface stub format type, ie: "
3081 "-interface-stub-version=ifs-v1"
3082 << ErrorMessage;
3083 ProgramAction = frontend::ParseSyntaxOnly;
3084 }
3085 }
3086
3087 Opts.ProgramAction = *ProgramAction;
3088
3089 // Catch common mistakes when multiple actions are specified for cc1 (e.g.
3090 // -S -emit-llvm means -emit-llvm while -emit-llvm -S means -S). However, to
3091 // support driver `-c -Xclang ACTION` (-cc1 -emit-llvm file -main-file-name
3092 // X ACTION), we suppress the error when the two actions are separated by
3093 // -main-file-name.
3094 //
3095 // As an exception, accept composable -ast-dump*.
3096 if (!A->getSpelling().starts_with(Prefix: "-ast-dump")) {
3097 const Arg *SavedAction = nullptr;
3098 for (const Arg *AA :
3099 Args.filtered(Ids: OPT_Action_Group, Ids: OPT_main_file_name)) {
3100 if (AA->getOption().matches(ID: OPT_main_file_name)) {
3101 SavedAction = nullptr;
3102 } else if (!SavedAction) {
3103 SavedAction = AA;
3104 } else {
3105 if (!A->getOption().matches(ID: OPT_ast_dump_EQ))
3106 Diags.Report(DiagID: diag::err_fe_invalid_multiple_actions)
3107 << SavedAction->getSpelling() << A->getSpelling();
3108 break;
3109 }
3110 }
3111 }
3112 }
3113
3114 if (const Arg* A = Args.getLastArg(Ids: OPT_plugin)) {
3115 Opts.Plugins.emplace_back(args: A->getValue(N: 0));
3116 Opts.ProgramAction = frontend::PluginAction;
3117 Opts.ActionName = A->getValue();
3118 }
3119 for (const auto *AA : Args.filtered(Ids: OPT_plugin_arg))
3120 Opts.PluginArgs[AA->getValue(N: 0)].emplace_back(args: AA->getValue(N: 1));
3121
3122 for (const std::string &Arg :
3123 Args.getAllArgValues(Id: OPT_ftest_module_file_extension_EQ)) {
3124 std::string BlockName;
3125 unsigned MajorVersion;
3126 unsigned MinorVersion;
3127 bool Hashed;
3128 std::string UserInfo;
3129 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion,
3130 MinorVersion, Hashed, UserInfo)) {
3131 Diags.Report(DiagID: diag::err_test_module_file_extension_format) << Arg;
3132
3133 continue;
3134 }
3135
3136 // Add the testing module file extension.
3137 Opts.ModuleFileExtensions.push_back(
3138 x: std::make_shared<TestModuleFileExtension>(
3139 args&: BlockName, args&: MajorVersion, args&: MinorVersion, args&: Hashed, args&: UserInfo));
3140 }
3141
3142 if (const Arg *A = Args.getLastArg(Ids: OPT_code_completion_at)) {
3143 Opts.CodeCompletionAt =
3144 ParsedSourceLocation::FromString(Str: A->getValue());
3145 if (Opts.CodeCompletionAt.FileName.empty()) {
3146 Diags.Report(DiagID: diag::err_drv_invalid_value)
3147 << A->getAsString(Args) << A->getValue();
3148 Diags.Report(DiagID: diag::note_command_line_code_loc_requirement);
3149 }
3150 }
3151
3152 Opts.Plugins = Args.getAllArgValues(Id: OPT_load);
3153 Opts.ASTDumpDecls = Args.hasArg(Ids: OPT_ast_dump, Ids: OPT_ast_dump_EQ);
3154 Opts.ASTDumpAll = Args.hasArg(Ids: OPT_ast_dump_all, Ids: OPT_ast_dump_all_EQ);
3155 // Only the -fmodule-file=<file> form.
3156 for (const auto *A : Args.filtered(Ids: OPT_fmodule_file)) {
3157 StringRef Val = A->getValue();
3158 if (!Val.contains(C: '='))
3159 Opts.ModuleFiles.push_back(x: std::string(Val));
3160 }
3161
3162 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule)
3163 Diags.Report(DiagID: diag::err_drv_argument_only_allowed_with) << "-fsystem-module"
3164 << "-emit-module";
3165 if (Args.hasArg(Ids: OPT_fclangir) || Args.hasArg(Ids: OPT_emit_cir))
3166 Opts.UseClangIRPipeline = true;
3167
3168#if CLANG_ENABLE_CIR
3169 if (Args.hasArg(OPT_clangir_disable_passes))
3170 Opts.ClangIRDisablePasses = true;
3171
3172 if (Args.hasArg(OPT_clangir_disable_verifier))
3173 Opts.ClangIRDisableCIRVerifier = true;
3174#endif // CLANG_ENABLE_CIR
3175
3176 if (Args.hasArg(Ids: OPT_aux_target_cpu))
3177 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(Id: OPT_aux_target_cpu));
3178 if (Args.hasArg(Ids: OPT_aux_target_feature))
3179 Opts.AuxTargetFeatures = Args.getAllArgValues(Id: OPT_aux_target_feature);
3180
3181 InputKind DashX(Language::Unknown);
3182 if (const Arg *A = Args.getLastArg(Ids: OPT_x)) {
3183 StringRef XValue = A->getValue();
3184
3185 // Parse suffixes:
3186 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'.
3187 // FIXME: Supporting '<lang>-header-cpp-output' would be useful.
3188 bool Preprocessed = XValue.consume_back(Suffix: "-cpp-output");
3189 bool ModuleMap = XValue.consume_back(Suffix: "-module-map");
3190 // Detect and consume the header indicator.
3191 bool IsHeader =
3192 XValue != "precompiled-header" && XValue.consume_back(Suffix: "-header");
3193
3194 // If we have c++-{user,system}-header, that indicates a header unit input
3195 // likewise, if the user put -fmodule-header together with a header with an
3196 // absolute path (header-unit-header).
3197 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None;
3198 if (IsHeader || Preprocessed) {
3199 if (XValue.consume_back(Suffix: "-header-unit"))
3200 HUK = InputKind::HeaderUnit_Abs;
3201 else if (XValue.consume_back(Suffix: "-system"))
3202 HUK = InputKind::HeaderUnit_System;
3203 else if (XValue.consume_back(Suffix: "-user"))
3204 HUK = InputKind::HeaderUnit_User;
3205 }
3206
3207 // The value set by this processing is an un-preprocessed source which is
3208 // not intended to be a module map or header unit.
3209 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap &&
3210 HUK == InputKind::HeaderUnit_None;
3211
3212 // Principal languages.
3213 DashX = llvm::StringSwitch<InputKind>(XValue)
3214 .Case(S: "c", Value: Language::C)
3215 .Case(S: "cl", Value: Language::OpenCL)
3216 .Case(S: "clcpp", Value: Language::OpenCLCXX)
3217 .Case(S: "cuda", Value: Language::CUDA)
3218 .Case(S: "hip", Value: Language::HIP)
3219 .Case(S: "c++", Value: Language::CXX)
3220 .Case(S: "objective-c", Value: Language::ObjC)
3221 .Case(S: "objective-c++", Value: Language::ObjCXX)
3222 .Case(S: "hlsl", Value: Language::HLSL)
3223 .Default(Value: Language::Unknown);
3224
3225 // "objc[++]-cpp-output" is an acceptable synonym for
3226 // "objective-c[++]-cpp-output".
3227 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap &&
3228 HUK == InputKind::HeaderUnit_None)
3229 DashX = llvm::StringSwitch<InputKind>(XValue)
3230 .Case(S: "objc", Value: Language::ObjC)
3231 .Case(S: "objc++", Value: Language::ObjCXX)
3232 .Default(Value: Language::Unknown);
3233
3234 // Some special cases cannot be combined with suffixes.
3235 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap &&
3236 HUK == InputKind::HeaderUnit_None)
3237 DashX = llvm::StringSwitch<InputKind>(XValue)
3238 .Case(S: "cpp-output", Value: InputKind(Language::C).getPreprocessed())
3239 .Case(S: "assembler-with-cpp", Value: Language::Asm)
3240 .Cases(S0: "ast", S1: "pcm", S2: "precompiled-header",
3241 Value: InputKind(Language::Unknown, InputKind::Precompiled))
3242 .Case(S: "ir", Value: Language::LLVM_IR)
3243 .Case(S: "cir", Value: Language::CIR)
3244 .Default(Value: Language::Unknown);
3245
3246 if (DashX.isUnknown())
3247 Diags.Report(DiagID: diag::err_drv_invalid_value)
3248 << A->getAsString(Args) << A->getValue();
3249
3250 if (Preprocessed)
3251 DashX = DashX.getPreprocessed();
3252 // A regular header is considered mutually exclusive with a header unit.
3253 if (HUK != InputKind::HeaderUnit_None) {
3254 DashX = DashX.withHeaderUnit(HU: HUK);
3255 IsHeaderFile = true;
3256 } else if (IsHeaderFile)
3257 DashX = DashX.getHeader();
3258 if (ModuleMap)
3259 DashX = DashX.withFormat(F: InputKind::ModuleMap);
3260 }
3261
3262 // '-' is the default input if none is given.
3263 std::vector<std::string> Inputs = Args.getAllArgValues(Id: OPT_INPUT);
3264 Opts.Inputs.clear();
3265 if (Inputs.empty())
3266 Inputs.push_back(x: "-");
3267
3268 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None &&
3269 Inputs.size() > 1)
3270 Diags.Report(DiagID: diag::err_drv_header_unit_extra_inputs) << Inputs[1];
3271
3272 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
3273 InputKind IK = DashX;
3274 if (IK.isUnknown()) {
3275 IK = FrontendOptions::getInputKindForExtension(
3276 Extension: StringRef(Inputs[i]).rsplit(Separator: '.').second);
3277 // FIXME: Warn on this?
3278 if (IK.isUnknown())
3279 IK = Language::C;
3280 // FIXME: Remove this hack.
3281 if (i == 0)
3282 DashX = IK;
3283 }
3284
3285 bool IsSystem = false;
3286
3287 // The -emit-module action implicitly takes a module map.
3288 if (Opts.ProgramAction == frontend::GenerateModule &&
3289 IK.getFormat() == InputKind::Source) {
3290 IK = IK.withFormat(F: InputKind::ModuleMap);
3291 IsSystem = Opts.IsSystemModule;
3292 }
3293
3294 Opts.Inputs.emplace_back(Args: std::move(Inputs[i]), Args&: IK, Args&: IsSystem);
3295 }
3296
3297 Opts.DashX = DashX;
3298
3299 return Diags.getNumErrors() == NumErrorsBefore;
3300}
3301
3302std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
3303 void *MainAddr) {
3304 std::string ClangExecutable =
3305 llvm::sys::fs::getMainExecutable(argv0: Argv0, MainExecAddr: MainAddr);
3306 return Driver::GetResourcesPath(BinaryPath: ClangExecutable);
3307}
3308
3309static void GenerateHeaderSearchArgs(const HeaderSearchOptions &Opts,
3310 ArgumentConsumer Consumer) {
3311 const HeaderSearchOptions *HeaderSearchOpts = &Opts;
3312#define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \
3313 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
3314#include "clang/Driver/Options.inc"
3315#undef HEADER_SEARCH_OPTION_WITH_MARSHALLING
3316
3317 if (Opts.UseLibcxx)
3318 GenerateArg(Consumer, OptSpecifier: OPT_stdlib_EQ, Value: "libc++");
3319
3320 if (!Opts.ModuleCachePath.empty())
3321 GenerateArg(Consumer, OptSpecifier: OPT_fmodules_cache_path, Value: Opts.ModuleCachePath);
3322
3323 for (const auto &File : Opts.PrebuiltModuleFiles)
3324 GenerateArg(Consumer, OptSpecifier: OPT_fmodule_file, Value: File.first + "=" + File.second);
3325
3326 for (const auto &Path : Opts.PrebuiltModulePaths)
3327 GenerateArg(Consumer, OptSpecifier: OPT_fprebuilt_module_path, Value: Path);
3328
3329 for (const auto &Macro : Opts.ModulesIgnoreMacros)
3330 GenerateArg(Consumer, OptSpecifier: OPT_fmodules_ignore_macro, Value: Macro.val());
3331
3332 auto Matches = [](const HeaderSearchOptions::Entry &Entry,
3333 llvm::ArrayRef<frontend::IncludeDirGroup> Groups,
3334 std::optional<bool> IsFramework,
3335 std::optional<bool> IgnoreSysRoot) {
3336 return llvm::is_contained(Range&: Groups, Element: Entry.Group) &&
3337 (!IsFramework || (Entry.IsFramework == *IsFramework)) &&
3338 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot));
3339 };
3340
3341 auto It = Opts.UserEntries.begin();
3342 auto End = Opts.UserEntries.end();
3343
3344 // Add -I... and -F... options in order.
3345 for (; It < End && Matches(*It, {frontend::Angled}, std::nullopt, true);
3346 ++It) {
3347 OptSpecifier Opt = [It, Matches]() {
3348 if (Matches(*It, frontend::Angled, true, true))
3349 return OPT_F;
3350 if (Matches(*It, frontend::Angled, false, true))
3351 return OPT_I;
3352 llvm_unreachable("Unexpected HeaderSearchOptions::Entry.");
3353 }();
3354
3355 GenerateArg(Consumer, OptSpecifier: Opt, Value: It->Path);
3356 }
3357
3358 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may
3359 // have already been generated as "-I[xx]yy". If that's the case, their
3360 // position on command line was such that this has no semantic impact on
3361 // include paths.
3362 for (; It < End &&
3363 Matches(*It, {frontend::After, frontend::Angled}, false, true);
3364 ++It) {
3365 OptSpecifier Opt =
3366 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore;
3367 GenerateArg(Consumer, OptSpecifier: Opt, Value: It->Path);
3368 }
3369
3370 // Note: Some paths that came from "-idirafter=xxyy" may have already been
3371 // generated as "-iwithprefix=xxyy". If that's the case, their position on
3372 // command line was such that this has no semantic impact on include paths.
3373 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It)
3374 GenerateArg(Consumer, OptSpecifier: OPT_idirafter, Value: It->Path);
3375 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It)
3376 GenerateArg(Consumer, OptSpecifier: OPT_iquote, Value: It->Path);
3377 for (; It < End && Matches(*It, {frontend::System}, false, std::nullopt);
3378 ++It)
3379 GenerateArg(Consumer, OptSpecifier: It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot,
3380 Value: It->Path);
3381 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It)
3382 GenerateArg(Consumer, OptSpecifier: OPT_iframework, Value: It->Path);
3383 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It)
3384 GenerateArg(Consumer, OptSpecifier: OPT_iframeworkwithsysroot, Value: It->Path);
3385
3386 // Add the paths for the various language specific isystem flags.
3387 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It)
3388 GenerateArg(Consumer, OptSpecifier: OPT_c_isystem, Value: It->Path);
3389 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It)
3390 GenerateArg(Consumer, OptSpecifier: OPT_cxx_isystem, Value: It->Path);
3391 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It)
3392 GenerateArg(Consumer, OptSpecifier: OPT_objc_isystem, Value: It->Path);
3393 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It)
3394 GenerateArg(Consumer, OptSpecifier: OPT_objcxx_isystem, Value: It->Path);
3395
3396 // Add the internal paths from a driver that detects standard include paths.
3397 // Note: Some paths that came from "-internal-isystem" arguments may have
3398 // already been generated as "-isystem". If that's the case, their position on
3399 // command line was such that this has no semantic impact on include paths.
3400 for (; It < End &&
3401 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true);
3402 ++It) {
3403 OptSpecifier Opt = It->Group == frontend::System
3404 ? OPT_internal_isystem
3405 : OPT_internal_externc_isystem;
3406 GenerateArg(Consumer, OptSpecifier: Opt, Value: It->Path);
3407 }
3408 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It)
3409 GenerateArg(Consumer, OptSpecifier: OPT_internal_iframework, Value: It->Path);
3410
3411 assert(It == End && "Unhandled HeaderSearchOption::Entry.");
3412
3413 // Add the path prefixes which are implicitly treated as being system headers.
3414 for (const auto &P : Opts.SystemHeaderPrefixes) {
3415 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix
3416 : OPT_no_system_header_prefix;
3417 GenerateArg(Consumer, OptSpecifier: Opt, Value: P.Prefix);
3418 }
3419
3420 for (const std::string &F : Opts.VFSOverlayFiles)
3421 GenerateArg(Consumer, OptSpecifier: OPT_ivfsoverlay, Value: F);
3422}
3423
3424static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args,
3425 DiagnosticsEngine &Diags,
3426 const std::string &WorkingDir) {
3427 unsigned NumErrorsBefore = Diags.getNumErrors();
3428
3429 HeaderSearchOptions *HeaderSearchOpts = &Opts;
3430
3431#define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \
3432 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
3433#include "clang/Driver/Options.inc"
3434#undef HEADER_SEARCH_OPTION_WITH_MARSHALLING
3435
3436 if (const Arg *A = Args.getLastArg(Ids: OPT_stdlib_EQ))
3437 Opts.UseLibcxx = (strcmp(s1: A->getValue(), s2: "libc++") == 0);
3438
3439 // Canonicalize -fmodules-cache-path before storing it.
3440 SmallString<128> P(Args.getLastArgValue(Id: OPT_fmodules_cache_path));
3441 if (!(P.empty() || llvm::sys::path::is_absolute(path: P))) {
3442 if (WorkingDir.empty())
3443 llvm::sys::fs::make_absolute(path&: P);
3444 else
3445 llvm::sys::fs::make_absolute(current_directory: WorkingDir, path&: P);
3446 }
3447 llvm::sys::path::remove_dots(path&: P);
3448 Opts.ModuleCachePath = std::string(P);
3449
3450 // Only the -fmodule-file=<name>=<file> form.
3451 for (const auto *A : Args.filtered(Ids: OPT_fmodule_file)) {
3452 StringRef Val = A->getValue();
3453 if (Val.contains(C: '=')) {
3454 auto Split = Val.split(Separator: '=');
3455 Opts.PrebuiltModuleFiles.insert_or_assign(
3456 k: std::string(Split.first), obj: std::string(Split.second));
3457 }
3458 }
3459 for (const auto *A : Args.filtered(Ids: OPT_fprebuilt_module_path))
3460 Opts.AddPrebuiltModulePath(Name: A->getValue());
3461
3462 for (const auto *A : Args.filtered(Ids: OPT_fmodules_ignore_macro)) {
3463 StringRef MacroDef = A->getValue();
3464 Opts.ModulesIgnoreMacros.insert(
3465 X: llvm::CachedHashString(MacroDef.split(Separator: '=').first));
3466 }
3467
3468 // Add -I... and -F... options in order.
3469 bool IsSysrootSpecified =
3470 Args.hasArg(Ids: OPT__sysroot_EQ) || Args.hasArg(Ids: OPT_isysroot);
3471
3472 // Expand a leading `=` to the sysroot if one was passed (and it's not a
3473 // framework flag).
3474 auto PrefixHeaderPath = [IsSysrootSpecified,
3475 &Opts](const llvm::opt::Arg *A,
3476 bool IsFramework = false) -> std::string {
3477 assert(A->getNumValues() && "Unexpected empty search path flag!");
3478 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') {
3479 SmallString<32> Buffer;
3480 llvm::sys::path::append(path&: Buffer, a: Opts.Sysroot,
3481 b: llvm::StringRef(A->getValue()).substr(Start: 1));
3482 return std::string(Buffer);
3483 }
3484 return A->getValue();
3485 };
3486
3487 for (const auto *A : Args.filtered(Ids: OPT_I, Ids: OPT_F)) {
3488 bool IsFramework = A->getOption().matches(ID: OPT_F);
3489 Opts.AddPath(Path: PrefixHeaderPath(A, IsFramework), Group: frontend::Angled,
3490 IsFramework, /*IgnoreSysroot=*/IgnoreSysRoot: true);
3491 }
3492
3493 // Add -iprefix/-iwithprefix/-iwithprefixbefore options.
3494 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
3495 for (const auto *A :
3496 Args.filtered(Ids: OPT_iprefix, Ids: OPT_iwithprefix, Ids: OPT_iwithprefixbefore)) {
3497 if (A->getOption().matches(ID: OPT_iprefix))
3498 Prefix = A->getValue();
3499 else if (A->getOption().matches(ID: OPT_iwithprefix))
3500 Opts.AddPath(Path: Prefix.str() + A->getValue(), Group: frontend::After, IsFramework: false, IgnoreSysRoot: true);
3501 else
3502 Opts.AddPath(Path: Prefix.str() + A->getValue(), Group: frontend::Angled, IsFramework: false, IgnoreSysRoot: true);
3503 }
3504
3505 for (const auto *A : Args.filtered(Ids: OPT_idirafter))
3506 Opts.AddPath(Path: PrefixHeaderPath(A), Group: frontend::After, IsFramework: false, IgnoreSysRoot: true);
3507 for (const auto *A : Args.filtered(Ids: OPT_iquote))
3508 Opts.AddPath(Path: PrefixHeaderPath(A), Group: frontend::Quoted, IsFramework: false, IgnoreSysRoot: true);
3509
3510 for (const auto *A : Args.filtered(Ids: OPT_isystem, Ids: OPT_iwithsysroot)) {
3511 if (A->getOption().matches(ID: OPT_iwithsysroot)) {
3512 Opts.AddPath(Path: A->getValue(), Group: frontend::System, IsFramework: false,
3513 /*IgnoreSysRoot=*/false);
3514 continue;
3515 }
3516 Opts.AddPath(Path: PrefixHeaderPath(A), Group: frontend::System, IsFramework: false, IgnoreSysRoot: true);
3517 }
3518 for (const auto *A : Args.filtered(Ids: OPT_iframework))
3519 Opts.AddPath(Path: A->getValue(), Group: frontend::System, IsFramework: true, IgnoreSysRoot: true);
3520 for (const auto *A : Args.filtered(Ids: OPT_iframeworkwithsysroot))
3521 Opts.AddPath(Path: A->getValue(), Group: frontend::System, /*IsFramework=*/true,
3522 /*IgnoreSysRoot=*/false);
3523
3524 // Add the paths for the various language specific isystem flags.
3525 for (const auto *A : Args.filtered(Ids: OPT_c_isystem))
3526 Opts.AddPath(Path: A->getValue(), Group: frontend::CSystem, IsFramework: false, IgnoreSysRoot: true);
3527 for (const auto *A : Args.filtered(Ids: OPT_cxx_isystem))
3528 Opts.AddPath(Path: A->getValue(), Group: frontend::CXXSystem, IsFramework: false, IgnoreSysRoot: true);
3529 for (const auto *A : Args.filtered(Ids: OPT_objc_isystem))
3530 Opts.AddPath(Path: A->getValue(), Group: frontend::ObjCSystem, IsFramework: false,IgnoreSysRoot: true);
3531 for (const auto *A : Args.filtered(Ids: OPT_objcxx_isystem))
3532 Opts.AddPath(Path: A->getValue(), Group: frontend::ObjCXXSystem, IsFramework: false, IgnoreSysRoot: true);
3533
3534 // Add the internal paths from a driver that detects standard include paths.
3535 for (const auto *A :
3536 Args.filtered(Ids: OPT_internal_isystem, Ids: OPT_internal_externc_isystem)) {
3537 frontend::IncludeDirGroup Group = frontend::System;
3538 if (A->getOption().matches(ID: OPT_internal_externc_isystem))
3539 Group = frontend::ExternCSystem;
3540 Opts.AddPath(Path: A->getValue(), Group, IsFramework: false, IgnoreSysRoot: true);
3541 }
3542 for (const auto *A : Args.filtered(Ids: OPT_internal_iframework))
3543 Opts.AddPath(Path: A->getValue(), Group: frontend::System, IsFramework: true, IgnoreSysRoot: true);
3544
3545 // Add the path prefixes which are implicitly treated as being system headers.
3546 for (const auto *A :
3547 Args.filtered(Ids: OPT_system_header_prefix, Ids: OPT_no_system_header_prefix))
3548 Opts.AddSystemHeaderPrefix(
3549 Prefix: A->getValue(), IsSystemHeader: A->getOption().matches(ID: OPT_system_header_prefix));
3550
3551 for (const auto *A : Args.filtered(Ids: OPT_ivfsoverlay, Ids: OPT_vfsoverlay))
3552 Opts.AddVFSOverlayFile(Name: A->getValue());
3553
3554 return Diags.getNumErrors() == NumErrorsBefore;
3555}
3556
3557static void GenerateAPINotesArgs(const APINotesOptions &Opts,
3558 ArgumentConsumer Consumer) {
3559 if (!Opts.SwiftVersion.empty())
3560 GenerateArg(Consumer, OptSpecifier: OPT_fapinotes_swift_version,
3561 Value: Opts.SwiftVersion.getAsString());
3562
3563 for (const auto &Path : Opts.ModuleSearchPaths)
3564 GenerateArg(Consumer, OptSpecifier: OPT_iapinotes_modules, Value: Path);
3565}
3566
3567static void ParseAPINotesArgs(APINotesOptions &Opts, ArgList &Args,
3568 DiagnosticsEngine &diags) {
3569 if (const Arg *A = Args.getLastArg(Ids: OPT_fapinotes_swift_version)) {
3570 if (Opts.SwiftVersion.tryParse(string: A->getValue()))
3571 diags.Report(DiagID: diag::err_drv_invalid_value)
3572 << A->getAsString(Args) << A->getValue();
3573 }
3574 for (const Arg *A : Args.filtered(Ids: OPT_iapinotes_modules))
3575 Opts.ModuleSearchPaths.push_back(x: A->getValue());
3576}
3577
3578static void GeneratePointerAuthArgs(const LangOptions &Opts,
3579 ArgumentConsumer Consumer) {
3580 if (Opts.PointerAuthIntrinsics)
3581 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_intrinsics);
3582 if (Opts.PointerAuthCalls)
3583 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_calls);
3584 if (Opts.PointerAuthReturns)
3585 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_returns);
3586 if (Opts.PointerAuthIndirectGotos)
3587 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_indirect_gotos);
3588 if (Opts.PointerAuthAuthTraps)
3589 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_auth_traps);
3590 if (Opts.PointerAuthVTPtrAddressDiscrimination)
3591 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_vtable_pointer_address_discrimination);
3592 if (Opts.PointerAuthVTPtrTypeDiscrimination)
3593 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_vtable_pointer_type_discrimination);
3594 if (Opts.PointerAuthTypeInfoVTPtrDiscrimination)
3595 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_type_info_vtable_pointer_discrimination);
3596 if (Opts.PointerAuthFunctionTypeDiscrimination)
3597 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_function_pointer_type_discrimination);
3598 if (Opts.PointerAuthInitFini)
3599 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_init_fini);
3600 if (Opts.PointerAuthInitFiniAddressDiscrimination)
3601 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_init_fini_address_discrimination);
3602 if (Opts.PointerAuthELFGOT)
3603 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_elf_got);
3604 if (Opts.AArch64JumpTableHardening)
3605 GenerateArg(Consumer, OptSpecifier: OPT_faarch64_jump_table_hardening);
3606 if (Opts.PointerAuthObjcIsa)
3607 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_objc_isa);
3608 if (Opts.PointerAuthObjcInterfaceSel)
3609 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_objc_interface_sel);
3610 if (Opts.PointerAuthObjcClassROPointers)
3611 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_objc_class_ro);
3612 if (Opts.PointerAuthBlockDescriptorPointers)
3613 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_block_descriptor_pointers);
3614}
3615
3616static void ParsePointerAuthArgs(LangOptions &Opts, ArgList &Args,
3617 DiagnosticsEngine &Diags) {
3618 Opts.PointerAuthIntrinsics = Args.hasArg(Ids: OPT_fptrauth_intrinsics);
3619 Opts.PointerAuthCalls = Args.hasArg(Ids: OPT_fptrauth_calls);
3620 Opts.PointerAuthReturns = Args.hasArg(Ids: OPT_fptrauth_returns);
3621 Opts.PointerAuthIndirectGotos = Args.hasArg(Ids: OPT_fptrauth_indirect_gotos);
3622 Opts.PointerAuthAuthTraps = Args.hasArg(Ids: OPT_fptrauth_auth_traps);
3623 Opts.PointerAuthVTPtrAddressDiscrimination =
3624 Args.hasArg(Ids: OPT_fptrauth_vtable_pointer_address_discrimination);
3625 Opts.PointerAuthVTPtrTypeDiscrimination =
3626 Args.hasArg(Ids: OPT_fptrauth_vtable_pointer_type_discrimination);
3627 Opts.PointerAuthTypeInfoVTPtrDiscrimination =
3628 Args.hasArg(Ids: OPT_fptrauth_type_info_vtable_pointer_discrimination);
3629 Opts.PointerAuthFunctionTypeDiscrimination =
3630 Args.hasArg(Ids: OPT_fptrauth_function_pointer_type_discrimination);
3631 Opts.PointerAuthInitFini = Args.hasArg(Ids: OPT_fptrauth_init_fini);
3632 Opts.PointerAuthInitFiniAddressDiscrimination =
3633 Args.hasArg(Ids: OPT_fptrauth_init_fini_address_discrimination);
3634 Opts.PointerAuthELFGOT = Args.hasArg(Ids: OPT_fptrauth_elf_got);
3635 Opts.AArch64JumpTableHardening =
3636 Args.hasArg(Ids: OPT_faarch64_jump_table_hardening);
3637 Opts.PointerAuthBlockDescriptorPointers =
3638 Args.hasArg(Ids: OPT_fptrauth_block_descriptor_pointers);
3639 Opts.PointerAuthObjcIsa = Args.hasArg(Ids: OPT_fptrauth_objc_isa);
3640 Opts.PointerAuthObjcClassROPointers = Args.hasArg(Ids: OPT_fptrauth_objc_class_ro);
3641 Opts.PointerAuthObjcInterfaceSel =
3642 Args.hasArg(Ids: OPT_fptrauth_objc_interface_sel);
3643
3644 if (Opts.PointerAuthObjcInterfaceSel)
3645 Opts.PointerAuthObjcInterfaceSelKey =
3646 static_cast<unsigned>(PointerAuthSchema::ARM8_3Key::ASDB);
3647}
3648
3649/// Check if input file kind and language standard are compatible.
3650static bool IsInputCompatibleWithStandard(InputKind IK,
3651 const LangStandard &S) {
3652 switch (IK.getLanguage()) {
3653 case Language::Unknown:
3654 case Language::LLVM_IR:
3655 case Language::CIR:
3656 llvm_unreachable("should not parse language flags for this input");
3657
3658 case Language::C:
3659 case Language::ObjC:
3660 return S.getLanguage() == Language::C;
3661
3662 case Language::OpenCL:
3663 return S.getLanguage() == Language::OpenCL ||
3664 S.getLanguage() == Language::OpenCLCXX;
3665
3666 case Language::OpenCLCXX:
3667 return S.getLanguage() == Language::OpenCLCXX;
3668
3669 case Language::CXX:
3670 case Language::ObjCXX:
3671 return S.getLanguage() == Language::CXX;
3672
3673 case Language::CUDA:
3674 // FIXME: What -std= values should be permitted for CUDA compilations?
3675 return S.getLanguage() == Language::CUDA ||
3676 S.getLanguage() == Language::CXX;
3677
3678 case Language::HIP:
3679 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP;
3680
3681 case Language::Asm:
3682 // Accept (and ignore) all -std= values.
3683 // FIXME: The -std= value is not ignored; it affects the tokenization
3684 // and preprocessing rules if we're preprocessing this asm input.
3685 return true;
3686
3687 case Language::HLSL:
3688 return S.getLanguage() == Language::HLSL;
3689 }
3690
3691 llvm_unreachable("unexpected input language");
3692}
3693
3694/// Get language name for given input kind.
3695static StringRef GetInputKindName(InputKind IK) {
3696 switch (IK.getLanguage()) {
3697 case Language::C:
3698 return "C";
3699 case Language::ObjC:
3700 return "Objective-C";
3701 case Language::CXX:
3702 return "C++";
3703 case Language::ObjCXX:
3704 return "Objective-C++";
3705 case Language::OpenCL:
3706 return "OpenCL";
3707 case Language::OpenCLCXX:
3708 return "C++ for OpenCL";
3709 case Language::CUDA:
3710 return "CUDA";
3711 case Language::HIP:
3712 return "HIP";
3713
3714 case Language::Asm:
3715 return "Asm";
3716 case Language::LLVM_IR:
3717 return "LLVM IR";
3718 case Language::CIR:
3719 return "Clang IR";
3720
3721 case Language::HLSL:
3722 return "HLSL";
3723
3724 case Language::Unknown:
3725 break;
3726 }
3727 llvm_unreachable("unknown input language");
3728}
3729
3730static StringRef getExceptionHandlingName(unsigned EHK) {
3731 switch (static_cast<LangOptions::ExceptionHandlingKind>(EHK)) {
3732 case LangOptions::ExceptionHandlingKind::None:
3733 return "none";
3734 case LangOptions::ExceptionHandlingKind::DwarfCFI:
3735 return "dwarf";
3736 case LangOptions::ExceptionHandlingKind::SjLj:
3737 return "sjlj";
3738 case LangOptions::ExceptionHandlingKind::WinEH:
3739 return "seh";
3740 case LangOptions::ExceptionHandlingKind::Wasm:
3741 return "wasm";
3742 }
3743
3744 llvm_unreachable("covered switch");
3745}
3746
3747void CompilerInvocationBase::GenerateLangArgs(const LangOptions &Opts,
3748 ArgumentConsumer Consumer,
3749 const llvm::Triple &T,
3750 InputKind IK) {
3751 if (IK.getFormat() == InputKind::Precompiled ||
3752 IK.getLanguage() == Language::LLVM_IR ||
3753 IK.getLanguage() == Language::CIR) {
3754 if (Opts.ObjCAutoRefCount)
3755 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_arc);
3756 if (Opts.PICLevel != 0)
3757 GenerateArg(Consumer, OptSpecifier: OPT_pic_level, Value: Twine(Opts.PICLevel));
3758 if (Opts.PIE)
3759 GenerateArg(Consumer, OptSpecifier: OPT_pic_is_pie);
3760 for (StringRef Sanitizer : serializeSanitizerKinds(S: Opts.Sanitize))
3761 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_EQ, Value: Sanitizer);
3762 if (Opts.ExceptionHandling) {
3763 GenerateArg(Consumer, OptSpecifier: OPT_exception_model,
3764 Value: getExceptionHandlingName(EHK: Opts.ExceptionHandling));
3765 }
3766
3767 return;
3768 }
3769
3770 OptSpecifier StdOpt;
3771 switch (Opts.LangStd) {
3772 case LangStandard::lang_opencl10:
3773 case LangStandard::lang_opencl11:
3774 case LangStandard::lang_opencl12:
3775 case LangStandard::lang_opencl20:
3776 case LangStandard::lang_opencl30:
3777 case LangStandard::lang_openclcpp10:
3778 case LangStandard::lang_openclcpp2021:
3779 StdOpt = OPT_cl_std_EQ;
3780 break;
3781 default:
3782 StdOpt = OPT_std_EQ;
3783 break;
3784 }
3785
3786 auto LangStandard = LangStandard::getLangStandardForKind(K: Opts.LangStd);
3787 GenerateArg(Consumer, OptSpecifier: StdOpt, Value: LangStandard.getName());
3788
3789 if (Opts.IncludeDefaultHeader)
3790 GenerateArg(Consumer, OptSpecifier: OPT_finclude_default_header);
3791 if (Opts.DeclareOpenCLBuiltins)
3792 GenerateArg(Consumer, OptSpecifier: OPT_fdeclare_opencl_builtins);
3793
3794 const LangOptions *LangOpts = &Opts;
3795
3796#define LANG_OPTION_WITH_MARSHALLING(...) \
3797 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
3798#include "clang/Driver/Options.inc"
3799#undef LANG_OPTION_WITH_MARSHALLING
3800
3801 // The '-fcf-protection=' option is generated by CodeGenOpts generator.
3802
3803 if (Opts.ObjC) {
3804 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_runtime_EQ, Value: Opts.ObjCRuntime.getAsString());
3805
3806 if (Opts.GC == LangOptions::GCOnly)
3807 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_gc_only);
3808 else if (Opts.GC == LangOptions::HybridGC)
3809 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_gc);
3810 else if (Opts.ObjCAutoRefCount == 1)
3811 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_arc);
3812
3813 if (Opts.ObjCWeakRuntime)
3814 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_runtime_has_weak);
3815
3816 if (Opts.ObjCWeak)
3817 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_weak);
3818
3819 if (Opts.ObjCSubscriptingLegacyRuntime)
3820 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_subscripting_legacy_runtime);
3821 }
3822
3823 if (Opts.GNUCVersion != 0) {
3824 unsigned Major = Opts.GNUCVersion / 100 / 100;
3825 unsigned Minor = (Opts.GNUCVersion / 100) % 100;
3826 unsigned Patch = Opts.GNUCVersion % 100;
3827 GenerateArg(Consumer, OptSpecifier: OPT_fgnuc_version_EQ,
3828 Value: Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch));
3829 }
3830
3831 if (Opts.IgnoreXCOFFVisibility)
3832 GenerateArg(Consumer, OptSpecifier: OPT_mignore_xcoff_visibility);
3833
3834 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) {
3835 GenerateArg(Consumer, OptSpecifier: OPT_ftrapv);
3836 GenerateArg(Consumer, OptSpecifier: OPT_ftrapv_handler, Value: Opts.OverflowHandler);
3837 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) {
3838 GenerateArg(Consumer, OptSpecifier: OPT_fwrapv);
3839 }
3840 if (Opts.PointerOverflowDefined)
3841 GenerateArg(Consumer, OptSpecifier: OPT_fwrapv_pointer);
3842
3843 if (Opts.MSCompatibilityVersion != 0) {
3844 unsigned Major = Opts.MSCompatibilityVersion / 10000000;
3845 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100;
3846 unsigned Subminor = Opts.MSCompatibilityVersion % 100000;
3847 GenerateArg(Consumer, OptSpecifier: OPT_fms_compatibility_version,
3848 Value: Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor));
3849 }
3850
3851 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) ||
3852 T.isOSzOS()) {
3853 if (!Opts.Trigraphs)
3854 GenerateArg(Consumer, OptSpecifier: OPT_fno_trigraphs);
3855 } else {
3856 if (Opts.Trigraphs)
3857 GenerateArg(Consumer, OptSpecifier: OPT_ftrigraphs);
3858 }
3859
3860 if (T.isOSzOS() && !Opts.ZOSExt)
3861 GenerateArg(Consumer, OptSpecifier: OPT_fno_zos_extensions);
3862 else if (Opts.ZOSExt)
3863 GenerateArg(Consumer, OptSpecifier: OPT_fzos_extensions);
3864
3865 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200))
3866 GenerateArg(Consumer, OptSpecifier: OPT_fblocks);
3867
3868 if (Opts.ConvergentFunctions)
3869 GenerateArg(Consumer, OptSpecifier: OPT_fconvergent_functions);
3870 else
3871 GenerateArg(Consumer, OptSpecifier: OPT_fno_convergent_functions);
3872
3873 if (Opts.NoBuiltin && !Opts.Freestanding)
3874 GenerateArg(Consumer, OptSpecifier: OPT_fno_builtin);
3875
3876 if (!Opts.NoBuiltin)
3877 for (const auto &Func : Opts.NoBuiltinFuncs)
3878 GenerateArg(Consumer, OptSpecifier: OPT_fno_builtin_, Value: Func);
3879
3880 if (Opts.LongDoubleSize == 128)
3881 GenerateArg(Consumer, OptSpecifier: OPT_mlong_double_128);
3882 else if (Opts.LongDoubleSize == 64)
3883 GenerateArg(Consumer, OptSpecifier: OPT_mlong_double_64);
3884 else if (Opts.LongDoubleSize == 80)
3885 GenerateArg(Consumer, OptSpecifier: OPT_mlong_double_80);
3886
3887 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='.
3888
3889 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or
3890 // '-fopenmp-targets='.
3891 if (Opts.OpenMP && !Opts.OpenMPSimd) {
3892 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp);
3893
3894 if (Opts.OpenMP != 51)
3895 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_version_EQ, Value: Twine(Opts.OpenMP));
3896
3897 if (!Opts.OpenMPUseTLS)
3898 GenerateArg(Consumer, OptSpecifier: OPT_fnoopenmp_use_tls);
3899
3900 if (Opts.OpenMPIsTargetDevice)
3901 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_is_target_device);
3902
3903 if (Opts.OpenMPIRBuilder)
3904 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_enable_irbuilder);
3905 }
3906
3907 if (Opts.OpenMPSimd) {
3908 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_simd);
3909
3910 if (Opts.OpenMP != 51)
3911 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_version_EQ, Value: Twine(Opts.OpenMP));
3912 }
3913
3914 if (Opts.OpenMPThreadSubscription)
3915 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_assume_threads_oversubscription);
3916
3917 if (Opts.OpenMPTeamSubscription)
3918 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_assume_teams_oversubscription);
3919
3920 if (Opts.OpenMPTargetDebug != 0)
3921 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_target_debug_EQ,
3922 Value: Twine(Opts.OpenMPTargetDebug));
3923
3924 if (Opts.OpenMPCUDANumSMs != 0)
3925 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_cuda_number_of_sm_EQ,
3926 Value: Twine(Opts.OpenMPCUDANumSMs));
3927
3928 if (Opts.OpenMPCUDABlocksPerSM != 0)
3929 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_cuda_blocks_per_sm_EQ,
3930 Value: Twine(Opts.OpenMPCUDABlocksPerSM));
3931
3932 if (Opts.OpenMPCUDAReductionBufNum != 1024)
3933 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_cuda_teams_reduction_recs_num_EQ,
3934 Value: Twine(Opts.OpenMPCUDAReductionBufNum));
3935
3936 if (!Opts.OMPTargetTriples.empty()) {
3937 std::string Targets;
3938 llvm::raw_string_ostream OS(Targets);
3939 llvm::interleave(
3940 c: Opts.OMPTargetTriples, os&: OS,
3941 each_fn: [&OS](const llvm::Triple &T) { OS << T.str(); }, separator: ",");
3942 GenerateArg(Consumer, OptSpecifier: OPT_offload_targets_EQ, Value: Targets);
3943 }
3944
3945 if (!Opts.OMPHostIRFile.empty())
3946 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_host_ir_file_path, Value: Opts.OMPHostIRFile);
3947
3948 if (Opts.OpenMPCUDAMode)
3949 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_cuda_mode);
3950
3951 if (Opts.OpenACC) {
3952 GenerateArg(Consumer, OptSpecifier: OPT_fopenacc);
3953 if (!Opts.OpenACCMacroOverride.empty())
3954 GenerateArg(Consumer, OptSpecifier: OPT_openacc_macro_override,
3955 Value: Opts.OpenACCMacroOverride);
3956 }
3957
3958 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are
3959 // generated from CodeGenOptions.
3960
3961 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast)
3962 GenerateArg(Consumer, OptSpecifier: OPT_ffp_contract, Value: "fast");
3963 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On)
3964 GenerateArg(Consumer, OptSpecifier: OPT_ffp_contract, Value: "on");
3965 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off)
3966 GenerateArg(Consumer, OptSpecifier: OPT_ffp_contract, Value: "off");
3967 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas)
3968 GenerateArg(Consumer, OptSpecifier: OPT_ffp_contract, Value: "fast-honor-pragmas");
3969
3970 for (StringRef Sanitizer : serializeSanitizerKinds(S: Opts.Sanitize))
3971 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_EQ, Value: Sanitizer);
3972
3973 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'.
3974 for (const std::string &F : Opts.NoSanitizeFiles)
3975 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_ignorelist_EQ, Value: F);
3976
3977 switch (Opts.getClangABICompat()) {
3978 case LangOptions::ClangABI::Ver3_8:
3979 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "3.8");
3980 break;
3981 case LangOptions::ClangABI::Ver4:
3982 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "4.0");
3983 break;
3984 case LangOptions::ClangABI::Ver6:
3985 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "6.0");
3986 break;
3987 case LangOptions::ClangABI::Ver7:
3988 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "7.0");
3989 break;
3990 case LangOptions::ClangABI::Ver9:
3991 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "9.0");
3992 break;
3993 case LangOptions::ClangABI::Ver11:
3994 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "11.0");
3995 break;
3996 case LangOptions::ClangABI::Ver12:
3997 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "12.0");
3998 break;
3999 case LangOptions::ClangABI::Ver14:
4000 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "14.0");
4001 break;
4002 case LangOptions::ClangABI::Ver15:
4003 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "15.0");
4004 break;
4005 case LangOptions::ClangABI::Ver17:
4006 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "17.0");
4007 break;
4008 case LangOptions::ClangABI::Ver18:
4009 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "18.0");
4010 break;
4011 case LangOptions::ClangABI::Ver19:
4012 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "19.0");
4013 break;
4014 case LangOptions::ClangABI::Ver20:
4015 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "20.0");
4016 break;
4017 case LangOptions::ClangABI::Latest:
4018 break;
4019 }
4020
4021 if (Opts.getSignReturnAddressScope() ==
4022 LangOptions::SignReturnAddressScopeKind::All)
4023 GenerateArg(Consumer, OptSpecifier: OPT_msign_return_address_EQ, Value: "all");
4024 else if (Opts.getSignReturnAddressScope() ==
4025 LangOptions::SignReturnAddressScopeKind::NonLeaf)
4026 GenerateArg(Consumer, OptSpecifier: OPT_msign_return_address_EQ, Value: "non-leaf");
4027
4028 if (Opts.getSignReturnAddressKey() ==
4029 LangOptions::SignReturnAddressKeyKind::BKey)
4030 GenerateArg(Consumer, OptSpecifier: OPT_msign_return_address_key_EQ, Value: "b_key");
4031
4032 if (Opts.CXXABI)
4033 GenerateArg(Consumer, OptSpecifier: OPT_fcxx_abi_EQ,
4034 Value: TargetCXXABI::getSpelling(ABIKind: *Opts.CXXABI));
4035
4036 if (Opts.RelativeCXXABIVTables)
4037 GenerateArg(Consumer, OptSpecifier: OPT_fexperimental_relative_cxx_abi_vtables);
4038 else
4039 GenerateArg(Consumer, OptSpecifier: OPT_fno_experimental_relative_cxx_abi_vtables);
4040
4041 if (Opts.UseTargetPathSeparator)
4042 GenerateArg(Consumer, OptSpecifier: OPT_ffile_reproducible);
4043 else
4044 GenerateArg(Consumer, OptSpecifier: OPT_fno_file_reproducible);
4045
4046 for (const auto &MP : Opts.MacroPrefixMap)
4047 GenerateArg(Consumer, OptSpecifier: OPT_fmacro_prefix_map_EQ, Value: MP.first + "=" + MP.second);
4048
4049 if (!Opts.RandstructSeed.empty())
4050 GenerateArg(Consumer, OptSpecifier: OPT_frandomize_layout_seed_EQ, Value: Opts.RandstructSeed);
4051}
4052
4053bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args,
4054 InputKind IK, const llvm::Triple &T,
4055 std::vector<std::string> &Includes,
4056 DiagnosticsEngine &Diags) {
4057 unsigned NumErrorsBefore = Diags.getNumErrors();
4058
4059 if (IK.getFormat() == InputKind::Precompiled ||
4060 IK.getLanguage() == Language::LLVM_IR ||
4061 IK.getLanguage() == Language::CIR) {
4062 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the
4063 // PassManager in BackendUtil.cpp. They need to be initialized no matter
4064 // what the input type is.
4065 if (Args.hasArg(Ids: OPT_fobjc_arc))
4066 Opts.ObjCAutoRefCount = 1;
4067 // PICLevel and PIELevel are needed during code generation and this should
4068 // be set regardless of the input type.
4069 Opts.PICLevel = getLastArgIntValue(Args, Id: OPT_pic_level, Default: 0, Diags);
4070 Opts.PIE = Args.hasArg(Ids: OPT_pic_is_pie);
4071 parseSanitizerKinds(FlagName: "-fsanitize=", Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_EQ),
4072 Diags, S&: Opts.Sanitize);
4073
4074 if (const Arg *A = Args.getLastArg(Ids: options::OPT_exception_model)) {
4075 std::optional<LangOptions::ExceptionHandlingKind> EMValue =
4076 llvm::StringSwitch<std::optional<LangOptions::ExceptionHandlingKind>>(
4077 A->getValue())
4078 .Case(S: "dwarf", Value: LangOptions::ExceptionHandlingKind::DwarfCFI)
4079 .Case(S: "sjlj", Value: LangOptions::ExceptionHandlingKind::SjLj)
4080 .Case(S: "seh", Value: LangOptions::ExceptionHandlingKind::WinEH)
4081 .Case(S: "wasm", Value: LangOptions::ExceptionHandlingKind::Wasm)
4082 .Case(S: "none", Value: LangOptions::ExceptionHandlingKind::None)
4083 .Default(Value: std::nullopt);
4084 if (EMValue) {
4085 Opts.ExceptionHandling = static_cast<unsigned>(*EMValue);
4086 } else {
4087 Diags.Report(DiagID: diag::err_drv_invalid_value)
4088 << A->getAsString(Args) << A->getValue();
4089 }
4090 }
4091
4092 return Diags.getNumErrors() == NumErrorsBefore;
4093 }
4094
4095 // Other LangOpts are only initialized when the input is not AST or LLVM IR.
4096 // FIXME: Should we really be parsing this for an Language::Asm input?
4097
4098 // FIXME: Cleanup per-file based stuff.
4099 LangStandard::Kind LangStd = LangStandard::lang_unspecified;
4100 if (const Arg *A = Args.getLastArg(Ids: OPT_std_EQ)) {
4101 LangStd = LangStandard::getLangKind(Name: A->getValue());
4102 if (LangStd == LangStandard::lang_unspecified) {
4103 Diags.Report(DiagID: diag::err_drv_invalid_value)
4104 << A->getAsString(Args) << A->getValue();
4105 // Report supported standards with short description.
4106 for (unsigned KindValue = 0;
4107 KindValue != LangStandard::lang_unspecified;
4108 ++KindValue) {
4109 const LangStandard &Std = LangStandard::getLangStandardForKind(
4110 K: static_cast<LangStandard::Kind>(KindValue));
4111 if (IsInputCompatibleWithStandard(IK, S: Std)) {
4112 auto Diag = Diags.Report(DiagID: diag::note_drv_use_standard);
4113 Diag << Std.getName() << Std.getDescription();
4114 unsigned NumAliases = 0;
4115#define LANGSTANDARD(id, name, lang, desc, features)
4116#define LANGSTANDARD_ALIAS(id, alias) \
4117 if (KindValue == LangStandard::lang_##id) ++NumAliases;
4118#define LANGSTANDARD_ALIAS_DEPR(id, alias)
4119#include "clang/Basic/LangStandards.def"
4120 Diag << NumAliases;
4121#define LANGSTANDARD(id, name, lang, desc, features)
4122#define LANGSTANDARD_ALIAS(id, alias) \
4123 if (KindValue == LangStandard::lang_##id) Diag << alias;
4124#define LANGSTANDARD_ALIAS_DEPR(id, alias)
4125#include "clang/Basic/LangStandards.def"
4126 }
4127 }
4128 } else {
4129 // Valid standard, check to make sure language and standard are
4130 // compatible.
4131 const LangStandard &Std = LangStandard::getLangStandardForKind(K: LangStd);
4132 if (!IsInputCompatibleWithStandard(IK, S: Std)) {
4133 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
4134 << A->getAsString(Args) << GetInputKindName(IK);
4135 }
4136 }
4137 }
4138
4139 // -cl-std only applies for OpenCL language standards.
4140 // Override the -std option in this case.
4141 if (const Arg *A = Args.getLastArg(Ids: OPT_cl_std_EQ)) {
4142 LangStandard::Kind OpenCLLangStd
4143 = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
4144 .Cases(S0: "cl", S1: "CL", Value: LangStandard::lang_opencl10)
4145 .Cases(S0: "cl1.0", S1: "CL1.0", Value: LangStandard::lang_opencl10)
4146 .Cases(S0: "cl1.1", S1: "CL1.1", Value: LangStandard::lang_opencl11)
4147 .Cases(S0: "cl1.2", S1: "CL1.2", Value: LangStandard::lang_opencl12)
4148 .Cases(S0: "cl2.0", S1: "CL2.0", Value: LangStandard::lang_opencl20)
4149 .Cases(S0: "cl3.0", S1: "CL3.0", Value: LangStandard::lang_opencl30)
4150 .Cases(S0: "clc++", S1: "CLC++", Value: LangStandard::lang_openclcpp10)
4151 .Cases(S0: "clc++1.0", S1: "CLC++1.0", Value: LangStandard::lang_openclcpp10)
4152 .Cases(S0: "clc++2021", S1: "CLC++2021", Value: LangStandard::lang_openclcpp2021)
4153 .Default(Value: LangStandard::lang_unspecified);
4154
4155 if (OpenCLLangStd == LangStandard::lang_unspecified) {
4156 Diags.Report(DiagID: diag::err_drv_invalid_value)
4157 << A->getAsString(Args) << A->getValue();
4158 }
4159 else
4160 LangStd = OpenCLLangStd;
4161 }
4162
4163 // These need to be parsed now. They are used to set OpenCL defaults.
4164 Opts.IncludeDefaultHeader = Args.hasArg(Ids: OPT_finclude_default_header);
4165 Opts.DeclareOpenCLBuiltins = Args.hasArg(Ids: OPT_fdeclare_opencl_builtins);
4166
4167 LangOptions::setLangDefaults(Opts, Lang: IK.getLanguage(), T, Includes, LangStd);
4168
4169 // The key paths of codegen options defined in Options.td start with
4170 // "LangOpts->". Let's provide the expected variable name and type.
4171 LangOptions *LangOpts = &Opts;
4172
4173#define LANG_OPTION_WITH_MARSHALLING(...) \
4174 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
4175#include "clang/Driver/Options.inc"
4176#undef LANG_OPTION_WITH_MARSHALLING
4177
4178 if (const Arg *A = Args.getLastArg(Ids: OPT_fcf_protection_EQ)) {
4179 StringRef Name = A->getValue();
4180 if (Name == "full") {
4181 Opts.CFProtectionBranch = 1;
4182 Opts.CFProtectionReturn = 1;
4183 } else if (Name == "branch") {
4184 Opts.CFProtectionBranch = 1;
4185 } else if (Name == "return") {
4186 Opts.CFProtectionReturn = 1;
4187 }
4188 }
4189
4190 if (Opts.CFProtectionBranch) {
4191 if (const Arg *A = Args.getLastArg(Ids: OPT_mcf_branch_label_scheme_EQ)) {
4192 const auto Scheme =
4193 llvm::StringSwitch<CFBranchLabelSchemeKind>(A->getValue())
4194#define CF_BRANCH_LABEL_SCHEME(Kind, FlagVal) \
4195 .Case(#FlagVal, CFBranchLabelSchemeKind::Kind)
4196#include "clang/Basic/CFProtectionOptions.def"
4197 .Default(Value: CFBranchLabelSchemeKind::Default);
4198 Opts.setCFBranchLabelScheme(Scheme);
4199 }
4200 }
4201
4202 if ((Args.hasArg(Ids: OPT_fsycl_is_device) || Args.hasArg(Ids: OPT_fsycl_is_host)) &&
4203 !Args.hasArg(Ids: OPT_sycl_std_EQ)) {
4204 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to
4205 // provide -sycl-std=, we want to default it to whatever the default SYCL
4206 // version is. I could not find a way to express this with the options
4207 // tablegen because we still want this value to be SYCL_None when the user
4208 // is not in device or host mode.
4209 Opts.setSYCLVersion(LangOptions::SYCL_Default);
4210 }
4211
4212 if (Opts.ObjC) {
4213 if (Arg *arg = Args.getLastArg(Ids: OPT_fobjc_runtime_EQ)) {
4214 StringRef value = arg->getValue();
4215 if (Opts.ObjCRuntime.tryParse(input: value))
4216 Diags.Report(DiagID: diag::err_drv_unknown_objc_runtime) << value;
4217 }
4218
4219 if (Args.hasArg(Ids: OPT_fobjc_gc_only))
4220 Opts.setGC(LangOptions::GCOnly);
4221 else if (Args.hasArg(Ids: OPT_fobjc_gc))
4222 Opts.setGC(LangOptions::HybridGC);
4223 else if (Args.hasArg(Ids: OPT_fobjc_arc)) {
4224 Opts.ObjCAutoRefCount = 1;
4225 if (!Opts.ObjCRuntime.allowsARC())
4226 Diags.Report(DiagID: diag::err_arc_unsupported_on_runtime);
4227 }
4228
4229 // ObjCWeakRuntime tracks whether the runtime supports __weak, not
4230 // whether the feature is actually enabled. This is predominantly
4231 // determined by -fobjc-runtime, but we allow it to be overridden
4232 // from the command line for testing purposes.
4233 if (Args.hasArg(Ids: OPT_fobjc_runtime_has_weak))
4234 Opts.ObjCWeakRuntime = 1;
4235 else
4236 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak();
4237
4238 // ObjCWeak determines whether __weak is actually enabled.
4239 // Note that we allow -fno-objc-weak to disable this even in ARC mode.
4240 if (auto weakArg = Args.getLastArg(Ids: OPT_fobjc_weak, Ids: OPT_fno_objc_weak)) {
4241 if (!weakArg->getOption().matches(ID: OPT_fobjc_weak)) {
4242 assert(!Opts.ObjCWeak);
4243 } else if (Opts.getGC() != LangOptions::NonGC) {
4244 Diags.Report(DiagID: diag::err_objc_weak_with_gc);
4245 } else if (!Opts.ObjCWeakRuntime) {
4246 Diags.Report(DiagID: diag::err_objc_weak_unsupported);
4247 } else {
4248 Opts.ObjCWeak = 1;
4249 }
4250 } else if (Opts.ObjCAutoRefCount) {
4251 Opts.ObjCWeak = Opts.ObjCWeakRuntime;
4252 }
4253
4254 if (Args.hasArg(Ids: OPT_fobjc_subscripting_legacy_runtime))
4255 Opts.ObjCSubscriptingLegacyRuntime =
4256 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX);
4257 }
4258
4259 if (Arg *A = Args.getLastArg(Ids: options::OPT_fgnuc_version_EQ)) {
4260 // Check that the version has 1 to 3 components and the minor and patch
4261 // versions fit in two decimal digits.
4262 VersionTuple GNUCVer;
4263 bool Invalid = GNUCVer.tryParse(string: A->getValue());
4264 unsigned Major = GNUCVer.getMajor();
4265 unsigned Minor = GNUCVer.getMinor().value_or(u: 0);
4266 unsigned Patch = GNUCVer.getSubminor().value_or(u: 0);
4267 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) {
4268 Diags.Report(DiagID: diag::err_drv_invalid_value)
4269 << A->getAsString(Args) << A->getValue();
4270 }
4271 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch;
4272 }
4273
4274 if (T.isOSAIX() && (Args.hasArg(Ids: OPT_mignore_xcoff_visibility)))
4275 Opts.IgnoreXCOFFVisibility = 1;
4276
4277 if (Args.hasArg(Ids: OPT_ftrapv)) {
4278 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
4279 // Set the handler, if one is specified.
4280 Opts.OverflowHandler =
4281 std::string(Args.getLastArgValue(Id: OPT_ftrapv_handler));
4282 }
4283 else if (Args.hasArg(Ids: OPT_fwrapv))
4284 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
4285 if (Args.hasArg(Ids: OPT_fwrapv_pointer))
4286 Opts.PointerOverflowDefined = true;
4287
4288 Opts.MSCompatibilityVersion = 0;
4289 if (const Arg *A = Args.getLastArg(Ids: OPT_fms_compatibility_version)) {
4290 VersionTuple VT;
4291 if (VT.tryParse(string: A->getValue()))
4292 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args)
4293 << A->getValue();
4294 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 +
4295 VT.getMinor().value_or(u: 0) * 100000 +
4296 VT.getSubminor().value_or(u: 0);
4297 }
4298
4299 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs
4300 // is specified, or -std is set to a conforming mode.
4301 // Trigraphs are disabled by default in C++17 and C23 onwards.
4302 // For z/OS, trigraphs are enabled by default (without regard to the above).
4303 Opts.Trigraphs =
4304 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) ||
4305 T.isOSzOS();
4306 Opts.Trigraphs =
4307 Args.hasFlag(Pos: OPT_ftrigraphs, Neg: OPT_fno_trigraphs, Default: Opts.Trigraphs);
4308
4309 Opts.ZOSExt =
4310 Args.hasFlag(Pos: OPT_fzos_extensions, Neg: OPT_fno_zos_extensions, Default: T.isOSzOS());
4311
4312 Opts.Blocks = Args.hasArg(Ids: OPT_fblocks) || (Opts.OpenCL
4313 && Opts.OpenCLVersion == 200);
4314
4315 bool HasConvergentOperations = Opts.isTargetDevice() || Opts.OpenCL ||
4316 Opts.HLSL || T.isAMDGPU() || T.isNVPTX();
4317 Opts.ConvergentFunctions =
4318 Args.hasFlag(Pos: OPT_fconvergent_functions, Neg: OPT_fno_convergent_functions,
4319 Default: HasConvergentOperations);
4320
4321 Opts.NoBuiltin = Args.hasArg(Ids: OPT_fno_builtin) || Opts.Freestanding;
4322 if (!Opts.NoBuiltin)
4323 getAllNoBuiltinFuncValues(Args, Funcs&: Opts.NoBuiltinFuncs);
4324 if (Arg *A = Args.getLastArg(Ids: options::OPT_LongDouble_Group)) {
4325 if (A->getOption().matches(ID: options::OPT_mlong_double_64))
4326 Opts.LongDoubleSize = 64;
4327 else if (A->getOption().matches(ID: options::OPT_mlong_double_80))
4328 Opts.LongDoubleSize = 80;
4329 else if (A->getOption().matches(ID: options::OPT_mlong_double_128))
4330 Opts.LongDoubleSize = 128;
4331 else
4332 Opts.LongDoubleSize = 0;
4333 }
4334 if (Opts.FastRelaxedMath || Opts.CLUnsafeMath)
4335 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast);
4336
4337 llvm::sort(C&: Opts.ModuleFeatures);
4338
4339 // -mrtd option
4340 if (Arg *A = Args.getLastArg(Ids: OPT_mrtd)) {
4341 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None)
4342 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
4343 << A->getSpelling() << "-fdefault-calling-conv";
4344 else {
4345 switch (T.getArch()) {
4346 case llvm::Triple::x86:
4347 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall);
4348 break;
4349 case llvm::Triple::m68k:
4350 Opts.setDefaultCallingConv(LangOptions::DCC_RtdCall);
4351 break;
4352 default:
4353 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
4354 << A->getSpelling() << T.getTriple();
4355 }
4356 }
4357 }
4358
4359 // Check if -fopenmp is specified and set default version to 5.1.
4360 Opts.OpenMP = Args.hasArg(Ids: OPT_fopenmp) ? 51 : 0;
4361 // Check if -fopenmp-simd is specified.
4362 bool IsSimdSpecified =
4363 Args.hasFlag(Pos: options::OPT_fopenmp_simd, Neg: options::OPT_fno_openmp_simd,
4364 /*Default=*/false);
4365 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified;
4366 Opts.OpenMPUseTLS =
4367 Opts.OpenMP && !Args.hasArg(Ids: options::OPT_fnoopenmp_use_tls);
4368 Opts.OpenMPIsTargetDevice =
4369 Opts.OpenMP && Args.hasArg(Ids: options::OPT_fopenmp_is_target_device);
4370 Opts.OpenMPIRBuilder =
4371 Opts.OpenMP && Args.hasArg(Ids: options::OPT_fopenmp_enable_irbuilder);
4372 bool IsTargetSpecified =
4373 Opts.OpenMPIsTargetDevice || Args.hasArg(Ids: options::OPT_offload_targets_EQ);
4374
4375 if (Opts.OpenMP || Opts.OpenMPSimd) {
4376 if (int Version = getLastArgIntValue(
4377 Args, Id: OPT_fopenmp_version_EQ,
4378 Default: (IsSimdSpecified || IsTargetSpecified) ? 51 : Opts.OpenMP, Diags))
4379 Opts.OpenMP = Version;
4380 // Provide diagnostic when a given target is not expected to be an OpenMP
4381 // device or host.
4382 if (!Opts.OpenMPIsTargetDevice) {
4383 switch (T.getArch()) {
4384 default:
4385 break;
4386 // Add unsupported host targets here:
4387 case llvm::Triple::nvptx:
4388 case llvm::Triple::nvptx64:
4389 Diags.Report(DiagID: diag::err_drv_omp_host_target_not_supported) << T.str();
4390 break;
4391 }
4392 }
4393 }
4394
4395 // Set the flag to prevent the implementation from emitting device exception
4396 // handling code for those requiring so.
4397 if ((Opts.OpenMPIsTargetDevice && (T.isNVPTX() || T.isAMDGCN())) ||
4398 Opts.OpenCLCPlusPlus) {
4399
4400 Opts.Exceptions = 0;
4401 Opts.CXXExceptions = 0;
4402 }
4403 if (Opts.OpenMPIsTargetDevice && T.isNVPTX()) {
4404 Opts.OpenMPCUDANumSMs =
4405 getLastArgIntValue(Args, Id: options::OPT_fopenmp_cuda_number_of_sm_EQ,
4406 Default: Opts.OpenMPCUDANumSMs, Diags);
4407 Opts.OpenMPCUDABlocksPerSM =
4408 getLastArgIntValue(Args, Id: options::OPT_fopenmp_cuda_blocks_per_sm_EQ,
4409 Default: Opts.OpenMPCUDABlocksPerSM, Diags);
4410 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue(
4411 Args, Id: options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ,
4412 Default: Opts.OpenMPCUDAReductionBufNum, Diags);
4413 }
4414
4415 // Set the value of the debugging flag used in the new offloading device RTL.
4416 // Set either by a specific value or to a default if not specified.
4417 if (Opts.OpenMPIsTargetDevice && (Args.hasArg(Ids: OPT_fopenmp_target_debug) ||
4418 Args.hasArg(Ids: OPT_fopenmp_target_debug_EQ))) {
4419 Opts.OpenMPTargetDebug = getLastArgIntValue(
4420 Args, Id: OPT_fopenmp_target_debug_EQ, Default: Opts.OpenMPTargetDebug, Diags);
4421 if (!Opts.OpenMPTargetDebug && Args.hasArg(Ids: OPT_fopenmp_target_debug))
4422 Opts.OpenMPTargetDebug = 1;
4423 }
4424
4425 if (Opts.OpenMPIsTargetDevice) {
4426 if (Args.hasArg(Ids: OPT_fopenmp_assume_teams_oversubscription))
4427 Opts.OpenMPTeamSubscription = true;
4428 if (Args.hasArg(Ids: OPT_fopenmp_assume_threads_oversubscription))
4429 Opts.OpenMPThreadSubscription = true;
4430 }
4431
4432 // Get the OpenMP target triples if any.
4433 if (Arg *A = Args.getLastArg(Ids: options::OPT_offload_targets_EQ)) {
4434 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit };
4435 auto getArchPtrSize = [](const llvm::Triple &T) {
4436 if (T.isArch16Bit())
4437 return Arch16Bit;
4438 if (T.isArch32Bit())
4439 return Arch32Bit;
4440 assert(T.isArch64Bit() && "Expected 64-bit architecture");
4441 return Arch64Bit;
4442 };
4443
4444 for (unsigned i = 0; i < A->getNumValues(); ++i) {
4445 llvm::Triple TT(A->getValue(N: i));
4446
4447 if (TT.getArch() == llvm::Triple::UnknownArch ||
4448 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() ||
4449 TT.getArch() == llvm::Triple::spirv64 ||
4450 TT.getArch() == llvm::Triple::systemz ||
4451 TT.getArch() == llvm::Triple::loongarch64 ||
4452 TT.getArch() == llvm::Triple::nvptx ||
4453 TT.getArch() == llvm::Triple::nvptx64 || TT.isAMDGCN() ||
4454 TT.getArch() == llvm::Triple::x86 ||
4455 TT.getArch() == llvm::Triple::x86_64))
4456 Diags.Report(DiagID: diag::err_drv_invalid_omp_target) << A->getValue(N: i);
4457 else if (getArchPtrSize(T) != getArchPtrSize(TT))
4458 Diags.Report(DiagID: diag::err_drv_incompatible_omp_arch)
4459 << A->getValue(N: i) << T.str();
4460 else
4461 Opts.OMPTargetTriples.push_back(x: TT);
4462 }
4463 }
4464
4465 // Get OpenMP host file path if any and report if a non existent file is
4466 // found
4467 if (Arg *A = Args.getLastArg(Ids: options::OPT_fopenmp_host_ir_file_path)) {
4468 Opts.OMPHostIRFile = A->getValue();
4469 if (!llvm::sys::fs::exists(Path: Opts.OMPHostIRFile))
4470 Diags.Report(DiagID: diag::err_drv_omp_host_ir_file_not_found)
4471 << Opts.OMPHostIRFile;
4472 }
4473
4474 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options
4475 Opts.OpenMPCUDAMode = Opts.OpenMPIsTargetDevice &&
4476 (T.isNVPTX() || T.isAMDGCN()) &&
4477 Args.hasArg(Ids: options::OPT_fopenmp_cuda_mode);
4478
4479 // OpenACC Configuration.
4480 if (Args.hasArg(Ids: options::OPT_fopenacc)) {
4481 Opts.OpenACC = true;
4482
4483 if (Arg *A = Args.getLastArg(Ids: options::OPT_openacc_macro_override))
4484 Opts.OpenACCMacroOverride = A->getValue();
4485 }
4486
4487 // FIXME: Eliminate this dependency.
4488 unsigned Opt = getOptimizationLevel(Args, IK, Diags),
4489 OptSize = getOptimizationLevelSize(Args);
4490 Opts.Optimize = Opt != 0;
4491 Opts.OptimizeSize = OptSize != 0;
4492
4493 // This is the __NO_INLINE__ define, which just depends on things like the
4494 // optimization level and -fno-inline, not actually whether the backend has
4495 // inlining enabled.
4496 Opts.NoInlineDefine = !Opts.Optimize;
4497 if (Arg *InlineArg = Args.getLastArg(
4498 Ids: options::OPT_finline_functions, Ids: options::OPT_finline_hint_functions,
4499 Ids: options::OPT_fno_inline_functions, Ids: options::OPT_fno_inline))
4500 if (InlineArg->getOption().matches(ID: options::OPT_fno_inline))
4501 Opts.NoInlineDefine = true;
4502
4503 if (Arg *A = Args.getLastArg(Ids: OPT_ffp_contract)) {
4504 StringRef Val = A->getValue();
4505 if (Val == "fast")
4506 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast);
4507 else if (Val == "on")
4508 Opts.setDefaultFPContractMode(LangOptions::FPM_On);
4509 else if (Val == "off")
4510 Opts.setDefaultFPContractMode(LangOptions::FPM_Off);
4511 else if (Val == "fast-honor-pragmas")
4512 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas);
4513 else
4514 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
4515 }
4516
4517 if (auto *A =
4518 Args.getLastArg(Ids: OPT_fsanitize_undefined_ignore_overflow_pattern_EQ)) {
4519 for (int i = 0, n = A->getNumValues(); i != n; ++i) {
4520 Opts.OverflowPatternExclusionMask |=
4521 llvm::StringSwitch<unsigned>(A->getValue(N: i))
4522 .Case(S: "none", Value: LangOptionsBase::None)
4523 .Case(S: "all", Value: LangOptionsBase::All)
4524 .Case(S: "add-unsigned-overflow-test",
4525 Value: LangOptionsBase::AddUnsignedOverflowTest)
4526 .Case(S: "add-signed-overflow-test",
4527 Value: LangOptionsBase::AddSignedOverflowTest)
4528 .Case(S: "negated-unsigned-const", Value: LangOptionsBase::NegUnsignedConst)
4529 .Case(S: "unsigned-post-decr-while",
4530 Value: LangOptionsBase::PostDecrInWhile)
4531 .Default(Value: 0);
4532 }
4533 }
4534
4535 // Parse -fsanitize= arguments.
4536 parseSanitizerKinds(FlagName: "-fsanitize=", Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_EQ),
4537 Diags, S&: Opts.Sanitize);
4538 Opts.NoSanitizeFiles = Args.getAllArgValues(Id: OPT_fsanitize_ignorelist_EQ);
4539 std::vector<std::string> systemIgnorelists =
4540 Args.getAllArgValues(Id: OPT_fsanitize_system_ignorelist_EQ);
4541 Opts.NoSanitizeFiles.insert(position: Opts.NoSanitizeFiles.end(),
4542 first: systemIgnorelists.begin(),
4543 last: systemIgnorelists.end());
4544
4545 if (Arg *A = Args.getLastArg(Ids: OPT_fclang_abi_compat_EQ)) {
4546 Opts.setClangABICompat(LangOptions::ClangABI::Latest);
4547
4548 StringRef Ver = A->getValue();
4549 std::pair<StringRef, StringRef> VerParts = Ver.split(Separator: '.');
4550 unsigned Major, Minor = 0;
4551
4552 // Check the version number is valid: either 3.x (0 <= x <= 9) or
4553 // y or y.0 (4 <= y <= current version).
4554 if (!VerParts.first.starts_with(Prefix: "0") &&
4555 !VerParts.first.getAsInteger(Radix: 10, Result&: Major) && 3 <= Major &&
4556 Major <= MAX_CLANG_ABI_COMPAT_VERSION &&
4557 (Major == 3
4558 ? VerParts.second.size() == 1 &&
4559 !VerParts.second.getAsInteger(Radix: 10, Result&: Minor)
4560 : VerParts.first.size() == Ver.size() || VerParts.second == "0")) {
4561 // Got a valid version number.
4562 if (Major == 3 && Minor <= 8)
4563 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8);
4564 else if (Major <= 4)
4565 Opts.setClangABICompat(LangOptions::ClangABI::Ver4);
4566 else if (Major <= 6)
4567 Opts.setClangABICompat(LangOptions::ClangABI::Ver6);
4568 else if (Major <= 7)
4569 Opts.setClangABICompat(LangOptions::ClangABI::Ver7);
4570 else if (Major <= 9)
4571 Opts.setClangABICompat(LangOptions::ClangABI::Ver9);
4572 else if (Major <= 11)
4573 Opts.setClangABICompat(LangOptions::ClangABI::Ver11);
4574 else if (Major <= 12)
4575 Opts.setClangABICompat(LangOptions::ClangABI::Ver12);
4576 else if (Major <= 14)
4577 Opts.setClangABICompat(LangOptions::ClangABI::Ver14);
4578 else if (Major <= 15)
4579 Opts.setClangABICompat(LangOptions::ClangABI::Ver15);
4580 else if (Major <= 17)
4581 Opts.setClangABICompat(LangOptions::ClangABI::Ver17);
4582 else if (Major <= 18)
4583 Opts.setClangABICompat(LangOptions::ClangABI::Ver18);
4584 else if (Major <= 19)
4585 Opts.setClangABICompat(LangOptions::ClangABI::Ver19);
4586 else if (Major <= 20)
4587 Opts.setClangABICompat(LangOptions::ClangABI::Ver20);
4588 } else if (Ver != "latest") {
4589 Diags.Report(DiagID: diag::err_drv_invalid_value)
4590 << A->getAsString(Args) << A->getValue();
4591 }
4592 }
4593
4594 if (Arg *A = Args.getLastArg(Ids: OPT_msign_return_address_EQ)) {
4595 StringRef SignScope = A->getValue();
4596
4597 if (SignScope.equals_insensitive(RHS: "none"))
4598 Opts.setSignReturnAddressScope(
4599 LangOptions::SignReturnAddressScopeKind::None);
4600 else if (SignScope.equals_insensitive(RHS: "all"))
4601 Opts.setSignReturnAddressScope(
4602 LangOptions::SignReturnAddressScopeKind::All);
4603 else if (SignScope.equals_insensitive(RHS: "non-leaf"))
4604 Opts.setSignReturnAddressScope(
4605 LangOptions::SignReturnAddressScopeKind::NonLeaf);
4606 else
4607 Diags.Report(DiagID: diag::err_drv_invalid_value)
4608 << A->getAsString(Args) << SignScope;
4609
4610 if (Arg *A = Args.getLastArg(Ids: OPT_msign_return_address_key_EQ)) {
4611 StringRef SignKey = A->getValue();
4612 if (!SignScope.empty() && !SignKey.empty()) {
4613 if (SignKey == "a_key")
4614 Opts.setSignReturnAddressKey(
4615 LangOptions::SignReturnAddressKeyKind::AKey);
4616 else if (SignKey == "b_key")
4617 Opts.setSignReturnAddressKey(
4618 LangOptions::SignReturnAddressKeyKind::BKey);
4619 else
4620 Diags.Report(DiagID: diag::err_drv_invalid_value)
4621 << A->getAsString(Args) << SignKey;
4622 }
4623 }
4624 }
4625
4626 // The value can be empty, which indicates the system default should be used.
4627 StringRef CXXABI = Args.getLastArgValue(Id: OPT_fcxx_abi_EQ);
4628 if (!CXXABI.empty()) {
4629 if (!TargetCXXABI::isABI(Name: CXXABI)) {
4630 Diags.Report(DiagID: diag::err_invalid_cxx_abi) << CXXABI;
4631 } else {
4632 auto Kind = TargetCXXABI::getKind(Name: CXXABI);
4633 if (!TargetCXXABI::isSupportedCXXABI(T, Kind))
4634 Diags.Report(DiagID: diag::err_unsupported_cxx_abi) << CXXABI << T.str();
4635 else
4636 Opts.CXXABI = Kind;
4637 }
4638 }
4639
4640 Opts.RelativeCXXABIVTables =
4641 Args.hasFlag(Pos: options::OPT_fexperimental_relative_cxx_abi_vtables,
4642 Neg: options::OPT_fno_experimental_relative_cxx_abi_vtables,
4643 Default: TargetCXXABI::usesRelativeVTables(T));
4644
4645 // RTTI is on by default.
4646 bool HasRTTI = !Args.hasArg(Ids: options::OPT_fno_rtti);
4647 Opts.OmitVTableRTTI =
4648 Args.hasFlag(Pos: options::OPT_fexperimental_omit_vtable_rtti,
4649 Neg: options::OPT_fno_experimental_omit_vtable_rtti, Default: false);
4650 if (Opts.OmitVTableRTTI && HasRTTI)
4651 Diags.Report(DiagID: diag::err_drv_using_omit_rtti_component_without_no_rtti);
4652
4653 for (const auto &A : Args.getAllArgValues(Id: OPT_fmacro_prefix_map_EQ)) {
4654 auto Split = StringRef(A).split(Separator: '=');
4655 Opts.MacroPrefixMap.insert(
4656 x: {std::string(Split.first), std::string(Split.second)});
4657 }
4658
4659 Opts.UseTargetPathSeparator =
4660 !Args.getLastArg(Ids: OPT_fno_file_reproducible) &&
4661 (Args.getLastArg(Ids: OPT_ffile_compilation_dir_EQ) ||
4662 Args.getLastArg(Ids: OPT_fmacro_prefix_map_EQ) ||
4663 Args.getLastArg(Ids: OPT_ffile_reproducible));
4664
4665 // Error if -mvscale-min is unbounded.
4666 if (Arg *A = Args.getLastArg(Ids: options::OPT_mvscale_min_EQ)) {
4667 unsigned VScaleMin;
4668 if (StringRef(A->getValue()).getAsInteger(Radix: 10, Result&: VScaleMin) || VScaleMin == 0)
4669 Diags.Report(DiagID: diag::err_cc1_unbounded_vscale_min);
4670 }
4671 if (Arg *A = Args.getLastArg(Ids: options::OPT_mvscale_streaming_min_EQ)) {
4672 unsigned VScaleMin;
4673 if (StringRef(A->getValue()).getAsInteger(Radix: 10, Result&: VScaleMin) || VScaleMin == 0)
4674 Diags.Report(DiagID: diag::err_cc1_unbounded_vscale_min);
4675 }
4676
4677 if (const Arg *A = Args.getLastArg(Ids: OPT_frandomize_layout_seed_file_EQ)) {
4678 std::ifstream SeedFile(A->getValue(N: 0));
4679
4680 if (!SeedFile.is_open())
4681 Diags.Report(DiagID: diag::err_drv_cannot_open_randomize_layout_seed_file)
4682 << A->getValue(N: 0);
4683
4684 std::getline(is&: SeedFile, str&: Opts.RandstructSeed);
4685 }
4686
4687 if (const Arg *A = Args.getLastArg(Ids: OPT_frandomize_layout_seed_EQ))
4688 Opts.RandstructSeed = A->getValue(N: 0);
4689
4690 // Validate options for HLSL
4691 if (Opts.HLSL) {
4692 // TODO: Revisit restricting SPIR-V to logical once we've figured out how to
4693 // handle PhysicalStorageBuffer64 memory model
4694 if (T.isDXIL() || T.isSPIRVLogical()) {
4695 enum { ShaderModel, VulkanEnv, ShaderStage };
4696 enum { OS, Environment };
4697
4698 int ExpectedOS = T.isSPIRVLogical() ? VulkanEnv : ShaderModel;
4699
4700 if (T.getOSName().empty()) {
4701 Diags.Report(DiagID: diag::err_drv_hlsl_bad_shader_required_in_target)
4702 << ExpectedOS << OS << T.str();
4703 } else if (T.getEnvironmentName().empty()) {
4704 Diags.Report(DiagID: diag::err_drv_hlsl_bad_shader_required_in_target)
4705 << ShaderStage << Environment << T.str();
4706 } else if (!T.isShaderStageEnvironment()) {
4707 Diags.Report(DiagID: diag::err_drv_hlsl_bad_shader_unsupported)
4708 << ShaderStage << T.getEnvironmentName() << T.str();
4709 }
4710
4711 if (T.isDXIL()) {
4712 if (!T.isShaderModelOS() || T.getOSVersion() == VersionTuple(0)) {
4713 Diags.Report(DiagID: diag::err_drv_hlsl_bad_shader_unsupported)
4714 << ShaderModel << T.getOSName() << T.str();
4715 }
4716 // Validate that if fnative-half-type is given, that
4717 // the language standard is at least hlsl2018, and that
4718 // the target shader model is at least 6.2.
4719 if (Args.getLastArg(Ids: OPT_fnative_half_type)) {
4720 const LangStandard &Std =
4721 LangStandard::getLangStandardForKind(K: Opts.LangStd);
4722 if (!(Opts.LangStd >= LangStandard::lang_hlsl2018 &&
4723 T.getOSVersion() >= VersionTuple(6, 2)))
4724 Diags.Report(DiagID: diag::err_drv_hlsl_16bit_types_unsupported)
4725 << "-enable-16bit-types" << true << Std.getName()
4726 << T.getOSVersion().getAsString();
4727 }
4728 } else if (T.isSPIRVLogical()) {
4729 if (!T.isVulkanOS() || T.getVulkanVersion() == VersionTuple(0)) {
4730 Diags.Report(DiagID: diag::err_drv_hlsl_bad_shader_unsupported)
4731 << VulkanEnv << T.getOSName() << T.str();
4732 }
4733 if (Args.getLastArg(Ids: OPT_fnative_half_type)) {
4734 const LangStandard &Std =
4735 LangStandard::getLangStandardForKind(K: Opts.LangStd);
4736 if (!(Opts.LangStd >= LangStandard::lang_hlsl2018))
4737 Diags.Report(DiagID: diag::err_drv_hlsl_16bit_types_unsupported)
4738 << "-fnative-half-type" << false << Std.getName();
4739 }
4740 } else {
4741 llvm_unreachable("expected DXIL or SPIR-V target");
4742 }
4743 } else
4744 Diags.Report(DiagID: diag::err_drv_hlsl_unsupported_target) << T.str();
4745
4746 if (Opts.LangStd < LangStandard::lang_hlsl202x) {
4747 const LangStandard &Requested =
4748 LangStandard::getLangStandardForKind(K: Opts.LangStd);
4749 const LangStandard &Recommended =
4750 LangStandard::getLangStandardForKind(K: LangStandard::lang_hlsl202x);
4751 Diags.Report(DiagID: diag::warn_hlsl_langstd_minimal)
4752 << Requested.getName() << Recommended.getName();
4753 }
4754 }
4755
4756 return Diags.getNumErrors() == NumErrorsBefore;
4757}
4758
4759static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) {
4760 switch (Action) {
4761 case frontend::ASTDeclList:
4762 case frontend::ASTDump:
4763 case frontend::ASTPrint:
4764 case frontend::ASTView:
4765 case frontend::EmitAssembly:
4766 case frontend::EmitBC:
4767 case frontend::EmitCIR:
4768 case frontend::EmitHTML:
4769 case frontend::EmitLLVM:
4770 case frontend::EmitLLVMOnly:
4771 case frontend::EmitCodeGenOnly:
4772 case frontend::EmitObj:
4773 case frontend::ExtractAPI:
4774 case frontend::FixIt:
4775 case frontend::GenerateModule:
4776 case frontend::GenerateModuleInterface:
4777 case frontend::GenerateReducedModuleInterface:
4778 case frontend::GenerateHeaderUnit:
4779 case frontend::GeneratePCH:
4780 case frontend::GenerateInterfaceStubs:
4781 case frontend::ParseSyntaxOnly:
4782 case frontend::ModuleFileInfo:
4783 case frontend::VerifyPCH:
4784 case frontend::PluginAction:
4785 case frontend::RewriteObjC:
4786 case frontend::RewriteTest:
4787 case frontend::RunAnalysis:
4788 case frontend::TemplightDump:
4789 return false;
4790
4791 case frontend::DumpCompilerOptions:
4792 case frontend::DumpRawTokens:
4793 case frontend::DumpTokens:
4794 case frontend::InitOnly:
4795 case frontend::PrintPreamble:
4796 case frontend::PrintPreprocessedInput:
4797 case frontend::RewriteMacros:
4798 case frontend::RunPreprocessorOnly:
4799 case frontend::PrintDependencyDirectivesSourceMinimizerOutput:
4800 return true;
4801 }
4802 llvm_unreachable("invalid frontend action");
4803}
4804
4805static bool isCodeGenAction(frontend::ActionKind Action) {
4806 switch (Action) {
4807 case frontend::EmitAssembly:
4808 case frontend::EmitBC:
4809 case frontend::EmitCIR:
4810 case frontend::EmitHTML:
4811 case frontend::EmitLLVM:
4812 case frontend::EmitLLVMOnly:
4813 case frontend::EmitCodeGenOnly:
4814 case frontend::EmitObj:
4815 case frontend::GenerateModule:
4816 case frontend::GenerateModuleInterface:
4817 case frontend::GenerateReducedModuleInterface:
4818 case frontend::GenerateHeaderUnit:
4819 case frontend::GeneratePCH:
4820 case frontend::GenerateInterfaceStubs:
4821 return true;
4822 case frontend::ASTDeclList:
4823 case frontend::ASTDump:
4824 case frontend::ASTPrint:
4825 case frontend::ASTView:
4826 case frontend::ExtractAPI:
4827 case frontend::FixIt:
4828 case frontend::ParseSyntaxOnly:
4829 case frontend::ModuleFileInfo:
4830 case frontend::VerifyPCH:
4831 case frontend::PluginAction:
4832 case frontend::RewriteObjC:
4833 case frontend::RewriteTest:
4834 case frontend::RunAnalysis:
4835 case frontend::TemplightDump:
4836 case frontend::DumpCompilerOptions:
4837 case frontend::DumpRawTokens:
4838 case frontend::DumpTokens:
4839 case frontend::InitOnly:
4840 case frontend::PrintPreamble:
4841 case frontend::PrintPreprocessedInput:
4842 case frontend::RewriteMacros:
4843 case frontend::RunPreprocessorOnly:
4844 case frontend::PrintDependencyDirectivesSourceMinimizerOutput:
4845 return false;
4846 }
4847 llvm_unreachable("invalid frontend action");
4848}
4849
4850static void GeneratePreprocessorArgs(const PreprocessorOptions &Opts,
4851 ArgumentConsumer Consumer,
4852 const LangOptions &LangOpts,
4853 const FrontendOptions &FrontendOpts,
4854 const CodeGenOptions &CodeGenOpts) {
4855 const PreprocessorOptions *PreprocessorOpts = &Opts;
4856
4857#define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \
4858 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
4859#include "clang/Driver/Options.inc"
4860#undef PREPROCESSOR_OPTION_WITH_MARSHALLING
4861
4862 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate)
4863 GenerateArg(Consumer, OptSpecifier: OPT_pch_through_hdrstop_use);
4864
4865 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn)
4866 GenerateArg(Consumer, OptSpecifier: OPT_error_on_deserialized_pch_decl, Value: D);
4867
4868 if (Opts.PrecompiledPreambleBytes != std::make_pair(x: 0u, y: false))
4869 GenerateArg(Consumer, OptSpecifier: OPT_preamble_bytes_EQ,
4870 Value: Twine(Opts.PrecompiledPreambleBytes.first) + "," +
4871 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"));
4872
4873 for (const auto &M : Opts.Macros) {
4874 // Don't generate __CET__ macro definitions. They are implied by the
4875 // -fcf-protection option that is generated elsewhere.
4876 if (M.first == "__CET__=1" && !M.second &&
4877 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch)
4878 continue;
4879 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn &&
4880 !CodeGenOpts.CFProtectionBranch)
4881 continue;
4882 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn &&
4883 CodeGenOpts.CFProtectionBranch)
4884 continue;
4885
4886 GenerateArg(Consumer, OptSpecifier: M.second ? OPT_U : OPT_D, Value: M.first);
4887 }
4888
4889 for (const auto &I : Opts.Includes) {
4890 // Don't generate OpenCL includes. They are implied by other flags that are
4891 // generated elsewhere.
4892 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader &&
4893 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") ||
4894 I == "opencl-c.h"))
4895 continue;
4896 // Don't generate HLSL includes. They are implied by other flags that are
4897 // generated elsewhere.
4898 if (LangOpts.HLSL && I == "hlsl.h")
4899 continue;
4900
4901 GenerateArg(Consumer, OptSpecifier: OPT_include, Value: I);
4902 }
4903
4904 for (const auto &CI : Opts.ChainedIncludes)
4905 GenerateArg(Consumer, OptSpecifier: OPT_chain_include, Value: CI);
4906
4907 for (const auto &RF : Opts.RemappedFiles)
4908 GenerateArg(Consumer, OptSpecifier: OPT_remap_file, Value: RF.first + ";" + RF.second);
4909
4910 if (Opts.SourceDateEpoch)
4911 GenerateArg(Consumer, OptSpecifier: OPT_source_date_epoch, Value: Twine(*Opts.SourceDateEpoch));
4912
4913 if (Opts.DefineTargetOSMacros)
4914 GenerateArg(Consumer, OptSpecifier: OPT_fdefine_target_os_macros);
4915
4916 for (const auto &EmbedEntry : Opts.EmbedEntries)
4917 GenerateArg(Consumer, OptSpecifier: OPT_embed_dir_EQ, Value: EmbedEntry);
4918
4919 // Don't handle LexEditorPlaceholders. It is implied by the action that is
4920 // generated elsewhere.
4921}
4922
4923static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
4924 DiagnosticsEngine &Diags,
4925 frontend::ActionKind Action,
4926 const FrontendOptions &FrontendOpts) {
4927 unsigned NumErrorsBefore = Diags.getNumErrors();
4928
4929 PreprocessorOptions *PreprocessorOpts = &Opts;
4930
4931#define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \
4932 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
4933#include "clang/Driver/Options.inc"
4934#undef PREPROCESSOR_OPTION_WITH_MARSHALLING
4935
4936 Opts.PCHWithHdrStop = Args.hasArg(Ids: OPT_pch_through_hdrstop_create) ||
4937 Args.hasArg(Ids: OPT_pch_through_hdrstop_use);
4938
4939 for (const auto *A : Args.filtered(Ids: OPT_error_on_deserialized_pch_decl))
4940 Opts.DeserializedPCHDeclsToErrorOn.insert(x: A->getValue());
4941
4942 if (const Arg *A = Args.getLastArg(Ids: OPT_preamble_bytes_EQ)) {
4943 StringRef Value(A->getValue());
4944 size_t Comma = Value.find(C: ',');
4945 unsigned Bytes = 0;
4946 unsigned EndOfLine = 0;
4947
4948 if (Comma == StringRef::npos ||
4949 Value.substr(Start: 0, N: Comma).getAsInteger(Radix: 10, Result&: Bytes) ||
4950 Value.substr(Start: Comma + 1).getAsInteger(Radix: 10, Result&: EndOfLine))
4951 Diags.Report(DiagID: diag::err_drv_preamble_format);
4952 else {
4953 Opts.PrecompiledPreambleBytes.first = Bytes;
4954 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0);
4955 }
4956 }
4957
4958 // Add macros from the command line.
4959 for (const auto *A : Args.filtered(Ids: OPT_D, Ids: OPT_U)) {
4960 if (A->getOption().matches(ID: OPT_D))
4961 Opts.addMacroDef(Name: A->getValue());
4962 else
4963 Opts.addMacroUndef(Name: A->getValue());
4964 }
4965
4966 // Add the ordered list of -includes.
4967 for (const auto *A : Args.filtered(Ids: OPT_include))
4968 Opts.Includes.emplace_back(args: A->getValue());
4969
4970 for (const auto *A : Args.filtered(Ids: OPT_chain_include))
4971 Opts.ChainedIncludes.emplace_back(args: A->getValue());
4972
4973 for (const auto *A : Args.filtered(Ids: OPT_remap_file)) {
4974 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(Separator: ';');
4975
4976 if (Split.second.empty()) {
4977 Diags.Report(DiagID: diag::err_drv_invalid_remap_file) << A->getAsString(Args);
4978 continue;
4979 }
4980
4981 Opts.addRemappedFile(From: Split.first, To: Split.second);
4982 }
4983
4984 if (const Arg *A = Args.getLastArg(Ids: OPT_source_date_epoch)) {
4985 StringRef Epoch = A->getValue();
4986 // SOURCE_DATE_EPOCH, if specified, must be a non-negative decimal integer.
4987 // On time64 systems, pick 253402300799 (the UNIX timestamp of
4988 // 9999-12-31T23:59:59Z) as the upper bound.
4989 const uint64_t MaxTimestamp =
4990 std::min<uint64_t>(a: std::numeric_limits<time_t>::max(), b: 253402300799);
4991 uint64_t V;
4992 if (Epoch.getAsInteger(Radix: 10, Result&: V) || V > MaxTimestamp) {
4993 Diags.Report(DiagID: diag::err_fe_invalid_source_date_epoch)
4994 << Epoch << MaxTimestamp;
4995 } else {
4996 Opts.SourceDateEpoch = V;
4997 }
4998 }
4999
5000 for (const auto *A : Args.filtered(Ids: OPT_embed_dir_EQ)) {
5001 StringRef Val = A->getValue();
5002 Opts.EmbedEntries.push_back(x: std::string(Val));
5003 }
5004
5005 // Always avoid lexing editor placeholders when we're just running the
5006 // preprocessor as we never want to emit the
5007 // "editor placeholder in source file" error in PP only mode.
5008 if (isStrictlyPreprocessorAction(Action))
5009 Opts.LexEditorPlaceholders = false;
5010
5011 Opts.DefineTargetOSMacros =
5012 Args.hasFlag(Pos: OPT_fdefine_target_os_macros,
5013 Neg: OPT_fno_define_target_os_macros, Default: Opts.DefineTargetOSMacros);
5014
5015 return Diags.getNumErrors() == NumErrorsBefore;
5016}
5017
5018static void
5019GeneratePreprocessorOutputArgs(const PreprocessorOutputOptions &Opts,
5020 ArgumentConsumer Consumer,
5021 frontend::ActionKind Action) {
5022 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts;
5023
5024#define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \
5025 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
5026#include "clang/Driver/Options.inc"
5027#undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING
5028
5029 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP;
5030 if (Generate_dM)
5031 GenerateArg(Consumer, OptSpecifier: OPT_dM);
5032 if (!Generate_dM && Opts.ShowMacros)
5033 GenerateArg(Consumer, OptSpecifier: OPT_dD);
5034 if (Opts.DirectivesOnly)
5035 GenerateArg(Consumer, OptSpecifier: OPT_fdirectives_only);
5036}
5037
5038static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
5039 ArgList &Args, DiagnosticsEngine &Diags,
5040 frontend::ActionKind Action) {
5041 unsigned NumErrorsBefore = Diags.getNumErrors();
5042
5043 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts;
5044
5045#define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \
5046 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
5047#include "clang/Driver/Options.inc"
5048#undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING
5049
5050 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(Ids: OPT_dM);
5051 Opts.ShowMacros = Args.hasArg(Ids: OPT_dM) || Args.hasArg(Ids: OPT_dD);
5052 Opts.DirectivesOnly = Args.hasArg(Ids: OPT_fdirectives_only);
5053
5054 return Diags.getNumErrors() == NumErrorsBefore;
5055}
5056
5057static void GenerateTargetArgs(const TargetOptions &Opts,
5058 ArgumentConsumer Consumer) {
5059 const TargetOptions *TargetOpts = &Opts;
5060#define TARGET_OPTION_WITH_MARSHALLING(...) \
5061 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
5062#include "clang/Driver/Options.inc"
5063#undef TARGET_OPTION_WITH_MARSHALLING
5064
5065 if (!Opts.SDKVersion.empty())
5066 GenerateArg(Consumer, OptSpecifier: OPT_target_sdk_version_EQ,
5067 Value: Opts.SDKVersion.getAsString());
5068 if (!Opts.DarwinTargetVariantSDKVersion.empty())
5069 GenerateArg(Consumer, OptSpecifier: OPT_darwin_target_variant_sdk_version_EQ,
5070 Value: Opts.DarwinTargetVariantSDKVersion.getAsString());
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/Driver/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 return Diags.getNumErrors() == NumErrorsBefore;
5103}
5104
5105bool CompilerInvocation::CreateFromArgsImpl(
5106 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs,
5107 DiagnosticsEngine &Diags, const char *Argv0) {
5108 unsigned NumErrorsBefore = Diags.getNumErrors();
5109
5110 // Parse the arguments.
5111 const OptTable &Opts = getDriverOptTable();
5112 llvm::opt::Visibility VisibilityMask(options::CC1Option);
5113 unsigned MissingArgIndex, MissingArgCount;
5114 InputArgList Args = Opts.ParseArgs(Args: CommandLineArgs, MissingArgIndex,
5115 MissingArgCount, VisibilityMask);
5116 LangOptions &LangOpts = Res.getLangOpts();
5117
5118 // Check for missing argument error.
5119 if (MissingArgCount)
5120 Diags.Report(DiagID: diag::err_drv_missing_argument)
5121 << Args.getArgString(Index: MissingArgIndex) << MissingArgCount;
5122
5123 // Issue errors on unknown arguments.
5124 for (const auto *A : Args.filtered(Ids: OPT_UNKNOWN)) {
5125 auto ArgString = A->getAsString(Args);
5126 std::string Nearest;
5127 if (Opts.findNearest(Option: ArgString, NearestString&: Nearest, VisibilityMask) > 1)
5128 Diags.Report(DiagID: diag::err_drv_unknown_argument) << ArgString;
5129 else
5130 Diags.Report(DiagID: diag::err_drv_unknown_argument_with_suggestion)
5131 << ArgString << Nearest;
5132 }
5133
5134 ParseFileSystemArgs(Opts&: Res.getFileSystemOpts(), Args, Diags);
5135 ParseMigratorArgs(Opts&: Res.getMigratorOpts(), Args, Diags);
5136 ParseAnalyzerArgs(Opts&: Res.getAnalyzerOpts(), Args, Diags);
5137 ParseDiagnosticArgs(Opts&: Res.getDiagnosticOpts(), Args, Diags: &Diags,
5138 /*DefaultDiagColor=*/false);
5139 ParseFrontendArgs(Opts&: Res.getFrontendOpts(), Args, Diags, IsHeaderFile&: LangOpts.IsHeaderFile);
5140 // FIXME: We shouldn't have to pass the DashX option around here
5141 InputKind DashX = Res.getFrontendOpts().DashX;
5142 ParseTargetArgs(Opts&: Res.getTargetOpts(), Args, Diags);
5143 llvm::Triple T(Res.getTargetOpts().Triple);
5144 ParseHeaderSearchArgs(Opts&: Res.getHeaderSearchOpts(), Args, Diags,
5145 WorkingDir: Res.getFileSystemOpts().WorkingDir);
5146 if (Res.getFrontendOpts().GenReducedBMI ||
5147 Res.getFrontendOpts().ProgramAction ==
5148 frontend::GenerateReducedModuleInterface ||
5149 Res.getFrontendOpts().ProgramAction ==
5150 frontend::GenerateModuleInterface) {
5151 Res.getHeaderSearchOpts().ModulesSkipDiagnosticOptions = true;
5152 Res.getHeaderSearchOpts().ModulesSkipHeaderSearchPaths = true;
5153 }
5154 ParseAPINotesArgs(Opts&: Res.getAPINotesOpts(), Args, diags&: Diags);
5155
5156 ParsePointerAuthArgs(Opts&: LangOpts, Args, Diags);
5157
5158 ParseLangArgs(Opts&: LangOpts, Args, IK: DashX, T, Includes&: Res.getPreprocessorOpts().Includes,
5159 Diags);
5160 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
5161 LangOpts.ObjCExceptions = 1;
5162
5163 for (auto Warning : Res.getDiagnosticOpts().Warnings) {
5164 if (Warning == "misexpect" &&
5165 !Diags.isIgnored(DiagID: diag::warn_profile_data_misexpect, Loc: SourceLocation())) {
5166 Res.getCodeGenOpts().MisExpect = true;
5167 }
5168 }
5169
5170 if (LangOpts.CUDA) {
5171 // During CUDA device-side compilation, the aux triple is the
5172 // triple used for host compilation.
5173 if (LangOpts.CUDAIsDevice)
5174 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
5175 }
5176
5177 if (LangOpts.OpenACC && !Res.getFrontendOpts().UseClangIRPipeline &&
5178 isCodeGenAction(Action: Res.getFrontendOpts().ProgramAction))
5179 Diags.Report(DiagID: diag::warn_drv_openacc_without_cir);
5180
5181 // Set the triple of the host for OpenMP device compile.
5182 if (LangOpts.OpenMPIsTargetDevice)
5183 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
5184
5185 ParseCodeGenArgs(Opts&: Res.getCodeGenOpts(), Args, IK: DashX, Diags, T,
5186 OutputFile: Res.getFrontendOpts().OutputFile, LangOptsRef: LangOpts);
5187
5188 // FIXME: Override value name discarding when asan or msan is used because the
5189 // backend passes depend on the name of the alloca in order to print out
5190 // names.
5191 Res.getCodeGenOpts().DiscardValueNames &=
5192 !LangOpts.Sanitize.has(K: SanitizerKind::Address) &&
5193 !LangOpts.Sanitize.has(K: SanitizerKind::KernelAddress) &&
5194 !LangOpts.Sanitize.has(K: SanitizerKind::Memory) &&
5195 !LangOpts.Sanitize.has(K: SanitizerKind::KernelMemory);
5196
5197 ParsePreprocessorArgs(Opts&: Res.getPreprocessorOpts(), Args, Diags,
5198 Action: Res.getFrontendOpts().ProgramAction,
5199 FrontendOpts: Res.getFrontendOpts());
5200 ParsePreprocessorOutputArgs(Opts&: Res.getPreprocessorOutputOpts(), Args, Diags,
5201 Action: Res.getFrontendOpts().ProgramAction);
5202
5203 ParseDependencyOutputArgs(Opts&: Res.getDependencyOutputOpts(), Args, Diags,
5204 Action: Res.getFrontendOpts().ProgramAction,
5205 ShowLineMarkers: Res.getPreprocessorOutputOpts().ShowLineMarkers);
5206 if (!Res.getDependencyOutputOpts().OutputFile.empty() &&
5207 Res.getDependencyOutputOpts().Targets.empty())
5208 Diags.Report(DiagID: diag::err_fe_dependency_file_requires_MT);
5209
5210 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses.
5211 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses &&
5212 !Res.getLangOpts().Sanitize.empty()) {
5213 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false;
5214 Diags.Report(DiagID: diag::warn_drv_fine_grained_bitfield_accesses_ignored);
5215 }
5216
5217 // Store the command-line for using in the CodeView backend.
5218 if (Res.getCodeGenOpts().CodeViewCommandLine) {
5219 Res.getCodeGenOpts().Argv0 = Argv0;
5220 append_range(C&: Res.getCodeGenOpts().CommandLineArgs, R&: CommandLineArgs);
5221 }
5222
5223 // Set PGOOptions. Need to create a temporary VFS to read the profile
5224 // to determine the PGO type.
5225 if (!Res.getCodeGenOpts().ProfileInstrumentUsePath.empty()) {
5226 auto FS =
5227 createVFSFromOverlayFiles(VFSOverlayFiles: Res.getHeaderSearchOpts().VFSOverlayFiles,
5228 Diags, BaseFS: llvm::vfs::getRealFileSystem());
5229 setPGOUseInstrumentor(Opts&: Res.getCodeGenOpts(),
5230 ProfileName: Res.getCodeGenOpts().ProfileInstrumentUsePath, FS&: *FS,
5231 Diags);
5232 }
5233
5234 FixupInvocation(Invocation&: Res, Diags, Args, IK: DashX);
5235
5236 return Diags.getNumErrors() == NumErrorsBefore;
5237}
5238
5239bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation,
5240 ArrayRef<const char *> CommandLineArgs,
5241 DiagnosticsEngine &Diags,
5242 const char *Argv0) {
5243 CompilerInvocation DummyInvocation;
5244
5245 return RoundTrip(
5246 Parse: [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs,
5247 DiagnosticsEngine &Diags, const char *Argv0) {
5248 return CreateFromArgsImpl(Res&: Invocation, CommandLineArgs, Diags, Argv0);
5249 },
5250 Generate: [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args,
5251 StringAllocator SA) {
5252 Args.push_back(Elt: "-cc1");
5253 Invocation.generateCC1CommandLine(Args, SA);
5254 },
5255 RealInvocation&: Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0);
5256}
5257
5258std::string CompilerInvocation::getModuleHash() const {
5259 // FIXME: Consider using SHA1 instead of MD5.
5260 llvm::HashBuilder<llvm::MD5, llvm::endianness::native> HBuilder;
5261
5262 // Note: For QoI reasons, the things we use as a hash here should all be
5263 // dumped via the -module-info flag.
5264
5265 // Start the signature with the compiler version.
5266 HBuilder.add(Value: getClangFullRepositoryVersion());
5267
5268 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off
5269 // and getClangFullRepositoryVersion() doesn't include git revision.
5270 HBuilder.add(Args: serialization::VERSION_MAJOR, Args: serialization::VERSION_MINOR);
5271
5272 // Extend the signature with the language options
5273 // FIXME: Replace with C++20 `using enum LangOptions::CompatibilityKind`.
5274 using CK = LangOptions::CompatibilityKind;
5275#define LANGOPT(Name, Bits, Default, Compatibility, Description) \
5276 if constexpr (CK::Compatibility != CK::Benign) \
5277 HBuilder.add(LangOpts->Name);
5278#define ENUM_LANGOPT(Name, Type, Bits, Default, Compatibility, Description) \
5279 if constexpr (CK::Compatibility != CK::Benign) \
5280 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name()));
5281#include "clang/Basic/LangOptions.def"
5282
5283 HBuilder.addRange(Range: getLangOpts().ModuleFeatures);
5284
5285 HBuilder.add(Value: getLangOpts().ObjCRuntime);
5286 HBuilder.addRange(Range: getLangOpts().CommentOpts.BlockCommandNames);
5287
5288 // Extend the signature with the target options.
5289 HBuilder.add(Args: getTargetOpts().Triple, Args: getTargetOpts().CPU,
5290 Args: getTargetOpts().TuneCPU, Args: getTargetOpts().ABI);
5291 HBuilder.addRange(Range: getTargetOpts().FeaturesAsWritten);
5292
5293 // Extend the signature with preprocessor options.
5294 const PreprocessorOptions &ppOpts = getPreprocessorOpts();
5295 HBuilder.add(Args: ppOpts.UsePredefines, Args: ppOpts.DetailedRecord);
5296
5297 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts();
5298 for (const auto &Macro : getPreprocessorOpts().Macros) {
5299 // If we're supposed to ignore this macro for the purposes of modules,
5300 // don't put it into the hash.
5301 if (!hsOpts.ModulesIgnoreMacros.empty()) {
5302 // Check whether we're ignoring this macro.
5303 StringRef MacroDef = Macro.first;
5304 if (hsOpts.ModulesIgnoreMacros.count(
5305 key: llvm::CachedHashString(MacroDef.split(Separator: '=').first)))
5306 continue;
5307 }
5308
5309 HBuilder.add(Value: Macro);
5310 }
5311
5312 // Extend the signature with the sysroot and other header search options.
5313 HBuilder.add(Args: hsOpts.Sysroot, Args: hsOpts.ModuleFormat, Args: hsOpts.UseDebugInfo,
5314 Args: hsOpts.UseBuiltinIncludes, Args: hsOpts.UseStandardSystemIncludes,
5315 Args: hsOpts.UseStandardCXXIncludes, Args: hsOpts.UseLibcxx,
5316 Args: hsOpts.ModulesValidateDiagnosticOptions);
5317 HBuilder.add(Value: hsOpts.ResourceDir);
5318
5319 if (hsOpts.ModulesStrictContextHash) {
5320 HBuilder.addRange(Range: hsOpts.SystemHeaderPrefixes);
5321 HBuilder.addRange(Range: hsOpts.UserEntries);
5322 HBuilder.addRange(Range: hsOpts.VFSOverlayFiles);
5323
5324 const DiagnosticOptions &diagOpts = getDiagnosticOpts();
5325#define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name);
5326#define ENUM_DIAGOPT(Name, Type, Bits, Default) \
5327 HBuilder.add(diagOpts.get##Name());
5328#include "clang/Basic/DiagnosticOptions.def"
5329#undef DIAGOPT
5330#undef ENUM_DIAGOPT
5331 }
5332
5333 // Extend the signature with the user build path.
5334 HBuilder.add(Value: hsOpts.ModuleUserBuildPath);
5335
5336 // Extend the signature with the module file extensions.
5337 for (const auto &ext : getFrontendOpts().ModuleFileExtensions)
5338 ext->hashExtension(HBuilder);
5339
5340 // Extend the signature with the Swift version for API notes.
5341 const APINotesOptions &APINotesOpts = getAPINotesOpts();
5342 if (!APINotesOpts.SwiftVersion.empty()) {
5343 HBuilder.add(Value: APINotesOpts.SwiftVersion.getMajor());
5344 if (auto Minor = APINotesOpts.SwiftVersion.getMinor())
5345 HBuilder.add(Value: *Minor);
5346 if (auto Subminor = APINotesOpts.SwiftVersion.getSubminor())
5347 HBuilder.add(Value: *Subminor);
5348 if (auto Build = APINotesOpts.SwiftVersion.getBuild())
5349 HBuilder.add(Value: *Build);
5350 }
5351
5352 // When compiling with -gmodules, also hash -fdebug-prefix-map as it
5353 // affects the debug info in the PCM.
5354 if (getCodeGenOpts().DebugTypeExtRefs)
5355 HBuilder.addRange(Range: getCodeGenOpts().DebugPrefixMap);
5356
5357 // Extend the signature with the affecting debug options.
5358 if (getHeaderSearchOpts().ModuleFormat == "obj") {
5359 // FIXME: Replace with C++20 `using enum CodeGenOptions::CompatibilityKind`.
5360 using CK = CodeGenOptions::CompatibilityKind;
5361#define DEBUGOPT(Name, Bits, Default, Compatibility) \
5362 if constexpr (CK::Compatibility == CK::Affecting) \
5363 HBuilder.add(CodeGenOpts->Name);
5364#define VALUE_DEBUGOPT(Name, Bits, Default, Compatibility) \
5365 if constexpr (CK::Compatibility == CK::Affecting) \
5366 HBuilder.add(CodeGenOpts->Name);
5367#define ENUM_DEBUGOPT(Name, Type, Bits, Default, Compatibility) \
5368 if constexpr (CK::Compatibility == CK::Affecting) \
5369 HBuilder.add(static_cast<unsigned>(CodeGenOpts->get##Name()));
5370#include "clang/Basic/DebugOptions.def"
5371 }
5372
5373 // Extend the signature with the enabled sanitizers, if at least one is
5374 // enabled. Sanitizers which cannot affect AST generation aren't hashed.
5375 SanitizerSet SanHash = getLangOpts().Sanitize;
5376 SanHash.clear(K: getPPTransparentSanitizers());
5377 if (!SanHash.empty())
5378 HBuilder.add(Value: SanHash.Mask);
5379
5380 llvm::MD5::MD5Result Result;
5381 HBuilder.getHasher().final(Result);
5382 uint64_t Hash = Result.high() ^ Result.low();
5383 return toString(I: llvm::APInt(64, Hash), Radix: 36, /*Signed=*/false);
5384}
5385
5386void CompilerInvocationBase::generateCC1CommandLine(
5387 ArgumentConsumer Consumer) const {
5388 llvm::Triple T(getTargetOpts().Triple);
5389
5390 GenerateFileSystemArgs(Opts: getFileSystemOpts(), Consumer);
5391 GenerateMigratorArgs(Opts: getMigratorOpts(), Consumer);
5392 GenerateAnalyzerArgs(Opts: getAnalyzerOpts(), Consumer);
5393 GenerateDiagnosticArgs(Opts: getDiagnosticOpts(), Consumer,
5394 /*DefaultDiagColor=*/false);
5395 GenerateFrontendArgs(Opts: getFrontendOpts(), Consumer, IsHeader: getLangOpts().IsHeaderFile);
5396 GenerateTargetArgs(Opts: getTargetOpts(), Consumer);
5397 GenerateHeaderSearchArgs(Opts: getHeaderSearchOpts(), Consumer);
5398 GenerateAPINotesArgs(Opts: getAPINotesOpts(), Consumer);
5399 GeneratePointerAuthArgs(Opts: getLangOpts(), Consumer);
5400 GenerateLangArgs(Opts: getLangOpts(), Consumer, T, IK: getFrontendOpts().DashX);
5401 GenerateCodeGenArgs(Opts: getCodeGenOpts(), Consumer, T,
5402 OutputFile: getFrontendOpts().OutputFile, LangOpts: &getLangOpts());
5403 GeneratePreprocessorArgs(Opts: getPreprocessorOpts(), Consumer, LangOpts: getLangOpts(),
5404 FrontendOpts: getFrontendOpts(), CodeGenOpts: getCodeGenOpts());
5405 GeneratePreprocessorOutputArgs(Opts: getPreprocessorOutputOpts(), Consumer,
5406 Action: getFrontendOpts().ProgramAction);
5407 GenerateDependencyOutputArgs(Opts: getDependencyOutputOpts(), Consumer);
5408}
5409
5410std::vector<std::string> CompilerInvocationBase::getCC1CommandLine() const {
5411 std::vector<std::string> Args{"-cc1"};
5412 generateCC1CommandLine(
5413 Consumer: [&Args](const Twine &Arg) { Args.push_back(x: Arg.str()); });
5414 return Args;
5415}
5416
5417void CompilerInvocation::resetNonModularOptions() {
5418 getLangOpts().resetNonModularOptions();
5419 getPreprocessorOpts().resetNonModularOptions();
5420 getCodeGenOpts().resetNonModularOptions(ModuleFormat: getHeaderSearchOpts().ModuleFormat);
5421}
5422
5423void CompilerInvocation::clearImplicitModuleBuildOptions() {
5424 getLangOpts().ImplicitModules = false;
5425 getHeaderSearchOpts().ImplicitModuleMaps = false;
5426 getHeaderSearchOpts().ModuleCachePath.clear();
5427 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false;
5428 getHeaderSearchOpts().BuildSessionTimestamp = 0;
5429 // The specific values we canonicalize to for pruning don't affect behaviour,
5430 /// so use the default values so they may be dropped from the command-line.
5431 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60;
5432 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60;
5433}
5434
5435IntrusiveRefCntPtr<llvm::vfs::FileSystem>
5436clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI,
5437 DiagnosticsEngine &Diags) {
5438 return createVFSFromCompilerInvocation(CI, Diags,
5439 BaseFS: llvm::vfs::getRealFileSystem());
5440}
5441
5442IntrusiveRefCntPtr<llvm::vfs::FileSystem>
5443clang::createVFSFromCompilerInvocation(
5444 const CompilerInvocation &CI, DiagnosticsEngine &Diags,
5445 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) {
5446 return createVFSFromOverlayFiles(VFSOverlayFiles: CI.getHeaderSearchOpts().VFSOverlayFiles,
5447 Diags, BaseFS: std::move(BaseFS));
5448}
5449
5450IntrusiveRefCntPtr<llvm::vfs::FileSystem> clang::createVFSFromOverlayFiles(
5451 ArrayRef<std::string> VFSOverlayFiles, DiagnosticsEngine &Diags,
5452 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) {
5453 if (VFSOverlayFiles.empty())
5454 return BaseFS;
5455
5456 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS;
5457 // earlier vfs files are on the bottom
5458 for (const auto &File : VFSOverlayFiles) {
5459 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer =
5460 Result->getBufferForFile(Name: File);
5461 if (!Buffer) {
5462 Diags.Report(DiagID: diag::err_missing_vfs_overlay_file) << File;
5463 continue;
5464 }
5465
5466 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML(
5467 Buffer: std::move(Buffer.get()), /*DiagHandler*/ nullptr, YAMLFilePath: File,
5468 /*DiagContext*/ nullptr, ExternalFS: Result);
5469 if (!FS) {
5470 Diags.Report(DiagID: diag::err_invalid_vfs_overlay) << File;
5471 continue;
5472 }
5473
5474 Result = FS;
5475 }
5476 return Result;
5477}
5478

source code of clang/lib/Frontend/CompilerInvocation.cpp