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.ReturnAddresses = LangOpts.PointerAuthReturns;
1546 Opts.AuthTraps = LangOpts.PointerAuthAuthTraps;
1547 Opts.IndirectGotos = LangOpts.PointerAuthIndirectGotos;
1548 Opts.AArch64JumpTableHardening = LangOpts.AArch64JumpTableHardening;
1549}
1550
1551static void parsePointerAuthOptions(PointerAuthOptions &Opts,
1552 const LangOptions &LangOpts,
1553 const llvm::Triple &Triple,
1554 DiagnosticsEngine &Diags) {
1555 if (!LangOpts.PointerAuthCalls && !LangOpts.PointerAuthReturns &&
1556 !LangOpts.PointerAuthAuthTraps && !LangOpts.PointerAuthIndirectGotos &&
1557 !LangOpts.AArch64JumpTableHardening)
1558 return;
1559
1560 CompilerInvocation::setDefaultPointerAuthOptions(Opts, LangOpts, Triple);
1561}
1562
1563void CompilerInvocationBase::GenerateCodeGenArgs(const CodeGenOptions &Opts,
1564 ArgumentConsumer Consumer,
1565 const llvm::Triple &T,
1566 const std::string &OutputFile,
1567 const LangOptions *LangOpts) {
1568 const CodeGenOptions &CodeGenOpts = Opts;
1569
1570 if (Opts.OptimizationLevel == 0)
1571 GenerateArg(Consumer, OptSpecifier: OPT_O0);
1572 else
1573 GenerateArg(Consumer, OptSpecifier: OPT_O, Value: Twine(Opts.OptimizationLevel));
1574
1575#define CODEGEN_OPTION_WITH_MARSHALLING(...) \
1576 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
1577#include "clang/Driver/Options.inc"
1578#undef CODEGEN_OPTION_WITH_MARSHALLING
1579
1580 if (Opts.OptimizationLevel > 0) {
1581 if (Opts.Inlining == CodeGenOptions::NormalInlining)
1582 GenerateArg(Consumer, OptSpecifier: OPT_finline_functions);
1583 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining)
1584 GenerateArg(Consumer, OptSpecifier: OPT_finline_hint_functions);
1585 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining)
1586 GenerateArg(Consumer, OptSpecifier: OPT_fno_inline);
1587 }
1588
1589 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0)
1590 GenerateArg(Consumer, OptSpecifier: OPT_fdirect_access_external_data);
1591 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0)
1592 GenerateArg(Consumer, OptSpecifier: OPT_fno_direct_access_external_data);
1593
1594 std::optional<StringRef> DebugInfoVal;
1595 switch (Opts.DebugInfo) {
1596 case llvm::codegenoptions::DebugLineTablesOnly:
1597 DebugInfoVal = "line-tables-only";
1598 break;
1599 case llvm::codegenoptions::DebugDirectivesOnly:
1600 DebugInfoVal = "line-directives-only";
1601 break;
1602 case llvm::codegenoptions::DebugInfoConstructor:
1603 DebugInfoVal = "constructor";
1604 break;
1605 case llvm::codegenoptions::LimitedDebugInfo:
1606 DebugInfoVal = "limited";
1607 break;
1608 case llvm::codegenoptions::FullDebugInfo:
1609 DebugInfoVal = "standalone";
1610 break;
1611 case llvm::codegenoptions::UnusedTypeInfo:
1612 DebugInfoVal = "unused-types";
1613 break;
1614 case llvm::codegenoptions::NoDebugInfo: // default value
1615 DebugInfoVal = std::nullopt;
1616 break;
1617 case llvm::codegenoptions::LocTrackingOnly: // implied value
1618 DebugInfoVal = std::nullopt;
1619 break;
1620 }
1621 if (DebugInfoVal)
1622 GenerateArg(Consumer, OptSpecifier: OPT_debug_info_kind_EQ, Value: *DebugInfoVal);
1623
1624 for (const auto &Prefix : Opts.DebugPrefixMap)
1625 GenerateArg(Consumer, OptSpecifier: OPT_fdebug_prefix_map_EQ,
1626 Value: Prefix.first + "=" + Prefix.second);
1627
1628 for (const auto &Prefix : Opts.CoveragePrefixMap)
1629 GenerateArg(Consumer, OptSpecifier: OPT_fcoverage_prefix_map_EQ,
1630 Value: Prefix.first + "=" + Prefix.second);
1631
1632 if (Opts.NewStructPathTBAA)
1633 GenerateArg(Consumer, OptSpecifier: OPT_new_struct_path_tbaa);
1634
1635 if (Opts.OptimizeSize == 1)
1636 GenerateArg(Consumer, OptSpecifier: OPT_O, Value: "s");
1637 else if (Opts.OptimizeSize == 2)
1638 GenerateArg(Consumer, OptSpecifier: OPT_O, Value: "z");
1639
1640 // SimplifyLibCalls is set only in the absence of -fno-builtin and
1641 // -ffreestanding. We'll consider that when generating them.
1642
1643 // NoBuiltinFuncs are generated by LangOptions.
1644
1645 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1)
1646 GenerateArg(Consumer, OptSpecifier: OPT_funroll_loops);
1647 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1)
1648 GenerateArg(Consumer, OptSpecifier: OPT_fno_unroll_loops);
1649
1650 if (Opts.InterchangeLoops)
1651 GenerateArg(Consumer, OptSpecifier: OPT_floop_interchange);
1652 else
1653 GenerateArg(Consumer, OptSpecifier: OPT_fno_loop_interchange);
1654
1655 if (!Opts.BinutilsVersion.empty())
1656 GenerateArg(Consumer, OptSpecifier: OPT_fbinutils_version_EQ, Value: Opts.BinutilsVersion);
1657
1658 if (Opts.DebugNameTable ==
1659 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU))
1660 GenerateArg(Consumer, OptSpecifier: OPT_ggnu_pubnames);
1661 else if (Opts.DebugNameTable ==
1662 static_cast<unsigned>(
1663 llvm::DICompileUnit::DebugNameTableKind::Default))
1664 GenerateArg(Consumer, OptSpecifier: OPT_gpubnames);
1665
1666 if (Opts.DebugTemplateAlias)
1667 GenerateArg(Consumer, OptSpecifier: OPT_gtemplate_alias);
1668
1669 auto TNK = Opts.getDebugSimpleTemplateNames();
1670 if (TNK != llvm::codegenoptions::DebugTemplateNamesKind::Full) {
1671 if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Simple)
1672 GenerateArg(Consumer, OptSpecifier: OPT_gsimple_template_names_EQ, Value: "simple");
1673 else if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Mangled)
1674 GenerateArg(Consumer, OptSpecifier: OPT_gsimple_template_names_EQ, Value: "mangled");
1675 }
1676 // ProfileInstrumentUsePath is marshalled automatically, no need to generate
1677 // it or PGOUseInstrumentor.
1678
1679 if (Opts.TimePasses) {
1680 if (Opts.TimePassesPerRun)
1681 GenerateArg(Consumer, OptSpecifier: OPT_ftime_report_EQ, Value: "per-pass-run");
1682 else
1683 GenerateArg(Consumer, OptSpecifier: OPT_ftime_report);
1684
1685 if (Opts.TimePassesJson)
1686 GenerateArg(Consumer, OptSpecifier: OPT_ftime_report_json);
1687 }
1688
1689 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO)
1690 GenerateArg(Consumer, OptSpecifier: OPT_flto_EQ, Value: "full");
1691
1692 if (Opts.PrepareForThinLTO)
1693 GenerateArg(Consumer, OptSpecifier: OPT_flto_EQ, Value: "thin");
1694
1695 if (!Opts.ThinLTOIndexFile.empty())
1696 GenerateArg(Consumer, OptSpecifier: OPT_fthinlto_index_EQ, Value: Opts.ThinLTOIndexFile);
1697
1698 if (Opts.SaveTempsFilePrefix == OutputFile)
1699 GenerateArg(Consumer, OptSpecifier: OPT_save_temps_EQ, Value: "obj");
1700
1701 StringRef MemProfileBasename("memprof.profraw");
1702 if (!Opts.MemoryProfileOutput.empty()) {
1703 if (Opts.MemoryProfileOutput == MemProfileBasename) {
1704 GenerateArg(Consumer, OptSpecifier: OPT_fmemory_profile);
1705 } else {
1706 size_t ArgLength =
1707 Opts.MemoryProfileOutput.size() - MemProfileBasename.size();
1708 GenerateArg(Consumer, OptSpecifier: OPT_fmemory_profile_EQ,
1709 Value: Opts.MemoryProfileOutput.substr(pos: 0, n: ArgLength));
1710 }
1711 }
1712
1713 if (memcmp(s1: Opts.CoverageVersion, s2: "0000", n: 4))
1714 GenerateArg(Consumer, OptSpecifier: OPT_coverage_version_EQ,
1715 Value: StringRef(Opts.CoverageVersion, 4));
1716
1717 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely
1718 // '-fembed_bitcode', which does not map to any CompilerInvocation field and
1719 // won't be generated.)
1720
1721 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) {
1722 std::string InstrBundle =
1723 serializeXRayInstrumentationBundle(S: Opts.XRayInstrumentationBundle);
1724 if (!InstrBundle.empty())
1725 GenerateArg(Consumer, OptSpecifier: OPT_fxray_instrumentation_bundle, Value: InstrBundle);
1726 }
1727
1728 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch)
1729 GenerateArg(Consumer, OptSpecifier: OPT_fcf_protection_EQ, Value: "full");
1730 else if (Opts.CFProtectionReturn)
1731 GenerateArg(Consumer, OptSpecifier: OPT_fcf_protection_EQ, Value: "return");
1732 else if (Opts.CFProtectionBranch)
1733 GenerateArg(Consumer, OptSpecifier: OPT_fcf_protection_EQ, Value: "branch");
1734
1735 if (Opts.CFProtectionBranch) {
1736 switch (Opts.getCFBranchLabelScheme()) {
1737 case CFBranchLabelSchemeKind::Default:
1738 break;
1739#define CF_BRANCH_LABEL_SCHEME(Kind, FlagVal) \
1740 case CFBranchLabelSchemeKind::Kind: \
1741 GenerateArg(Consumer, OPT_mcf_branch_label_scheme_EQ, #FlagVal); \
1742 break;
1743#include "clang/Basic/CFProtectionOptions.def"
1744 }
1745 }
1746
1747 if (Opts.FunctionReturnThunks)
1748 GenerateArg(Consumer, OptSpecifier: OPT_mfunction_return_EQ, Value: "thunk-extern");
1749
1750 for (const auto &F : Opts.LinkBitcodeFiles) {
1751 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded &&
1752 F.PropagateAttrs && F.Internalize;
1753 GenerateArg(Consumer,
1754 OptSpecifier: Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file,
1755 Value: F.Filename);
1756 }
1757
1758 if (Opts.EmulatedTLS)
1759 GenerateArg(Consumer, OptSpecifier: OPT_femulated_tls);
1760
1761 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE())
1762 GenerateArg(Consumer, OptSpecifier: OPT_fdenormal_fp_math_EQ, Value: Opts.FPDenormalMode.str());
1763
1764 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) ||
1765 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE()))
1766 GenerateArg(Consumer, OptSpecifier: OPT_fdenormal_fp_math_f32_EQ,
1767 Value: Opts.FP32DenormalMode.str());
1768
1769 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) {
1770 OptSpecifier Opt =
1771 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return;
1772 GenerateArg(Consumer, OptSpecifier: Opt);
1773 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) {
1774 OptSpecifier Opt =
1775 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return;
1776 GenerateArg(Consumer, OptSpecifier: Opt);
1777 }
1778
1779 if (Opts.EnableAIXExtendedAltivecABI)
1780 GenerateArg(Consumer, OptSpecifier: OPT_mabi_EQ_vec_extabi);
1781
1782 if (Opts.XCOFFReadOnlyPointers)
1783 GenerateArg(Consumer, OptSpecifier: OPT_mxcoff_roptr);
1784
1785 if (!Opts.OptRecordPasses.empty())
1786 GenerateArg(Consumer, OptSpecifier: OPT_opt_record_passes, Value: Opts.OptRecordPasses);
1787
1788 if (!Opts.OptRecordFormat.empty())
1789 GenerateArg(Consumer, OptSpecifier: OPT_opt_record_format, Value: Opts.OptRecordFormat);
1790
1791 GenerateOptimizationRemark(Consumer, OptEQ: OPT_Rpass_EQ, Name: "pass",
1792 Remark: Opts.OptimizationRemark);
1793
1794 GenerateOptimizationRemark(Consumer, OptEQ: OPT_Rpass_missed_EQ, Name: "pass-missed",
1795 Remark: Opts.OptimizationRemarkMissed);
1796
1797 GenerateOptimizationRemark(Consumer, OptEQ: OPT_Rpass_analysis_EQ, Name: "pass-analysis",
1798 Remark: Opts.OptimizationRemarkAnalysis);
1799
1800 GenerateArg(Consumer, OptSpecifier: OPT_fdiagnostics_hotness_threshold_EQ,
1801 Value: Opts.DiagnosticsHotnessThreshold
1802 ? Twine(*Opts.DiagnosticsHotnessThreshold)
1803 : "auto");
1804
1805 GenerateArg(Consumer, OptSpecifier: OPT_fdiagnostics_misexpect_tolerance_EQ,
1806 Value: Twine(*Opts.DiagnosticsMisExpectTolerance));
1807
1808 for (StringRef Sanitizer : serializeSanitizerKinds(S: Opts.SanitizeRecover))
1809 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_recover_EQ, Value: Sanitizer);
1810
1811 for (StringRef Sanitizer : serializeSanitizerKinds(S: Opts.SanitizeTrap))
1812 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_trap_EQ, Value: Sanitizer);
1813
1814 for (StringRef Sanitizer :
1815 serializeSanitizerKinds(S: Opts.SanitizeMergeHandlers))
1816 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_merge_handlers_EQ, Value: Sanitizer);
1817
1818 SmallVector<std::string, 4> Values;
1819 serializeSanitizerMaskCutoffs(Cutoffs: Opts.SanitizeSkipHotCutoffs, Values);
1820 for (std::string Sanitizer : Values)
1821 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_skip_hot_cutoff_EQ, Value: Sanitizer);
1822
1823 if (Opts.AllowRuntimeCheckSkipHotCutoff) {
1824 GenerateArg(Consumer, OptSpecifier: OPT_fallow_runtime_check_skip_hot_cutoff_EQ,
1825 Value: std::to_string(val: *Opts.AllowRuntimeCheckSkipHotCutoff));
1826 }
1827
1828 for (StringRef Sanitizer :
1829 serializeSanitizerKinds(S: Opts.SanitizeAnnotateDebugInfo))
1830 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_annotate_debug_info_EQ, Value: Sanitizer);
1831
1832 if (!Opts.EmitVersionIdentMetadata)
1833 GenerateArg(Consumer, OptSpecifier: OPT_Qn);
1834
1835 switch (Opts.FiniteLoops) {
1836 case CodeGenOptions::FiniteLoopsKind::Language:
1837 break;
1838 case CodeGenOptions::FiniteLoopsKind::Always:
1839 GenerateArg(Consumer, OptSpecifier: OPT_ffinite_loops);
1840 break;
1841 case CodeGenOptions::FiniteLoopsKind::Never:
1842 GenerateArg(Consumer, OptSpecifier: OPT_fno_finite_loops);
1843 break;
1844 }
1845
1846 if (Opts.StaticClosure)
1847 GenerateArg(Consumer, OptSpecifier: OPT_static_libclosure);
1848}
1849
1850bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args,
1851 InputKind IK,
1852 DiagnosticsEngine &Diags,
1853 const llvm::Triple &T,
1854 const std::string &OutputFile,
1855 const LangOptions &LangOptsRef) {
1856 unsigned NumErrorsBefore = Diags.getNumErrors();
1857
1858 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags);
1859 // TODO: This could be done in Driver
1860 unsigned MaxOptLevel = 3;
1861 if (OptimizationLevel > MaxOptLevel) {
1862 // If the optimization level is not supported, fall back on the default
1863 // optimization
1864 Diags.Report(DiagID: diag::warn_drv_optimization_value)
1865 << Args.getLastArg(Ids: OPT_O)->getAsString(Args) << "-O" << MaxOptLevel;
1866 OptimizationLevel = MaxOptLevel;
1867 }
1868 Opts.OptimizationLevel = OptimizationLevel;
1869
1870 // The key paths of codegen options defined in Options.td start with
1871 // "CodeGenOpts.". Let's provide the expected variable name and type.
1872 CodeGenOptions &CodeGenOpts = Opts;
1873 // Some codegen options depend on language options. Let's provide the expected
1874 // variable name and type.
1875 const LangOptions *LangOpts = &LangOptsRef;
1876
1877#define CODEGEN_OPTION_WITH_MARSHALLING(...) \
1878 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
1879#include "clang/Driver/Options.inc"
1880#undef CODEGEN_OPTION_WITH_MARSHALLING
1881
1882 // At O0 we want to fully disable inlining outside of cases marked with
1883 // 'alwaysinline' that are required for correctness.
1884 if (Opts.OptimizationLevel == 0) {
1885 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining);
1886 } else if (const Arg *A = Args.getLastArg(Ids: options::OPT_finline_functions,
1887 Ids: options::OPT_finline_hint_functions,
1888 Ids: options::OPT_fno_inline_functions,
1889 Ids: options::OPT_fno_inline)) {
1890 // Explicit inlining flags can disable some or all inlining even at
1891 // optimization levels above zero.
1892 if (A->getOption().matches(ID: options::OPT_finline_functions))
1893 Opts.setInlining(CodeGenOptions::NormalInlining);
1894 else if (A->getOption().matches(ID: options::OPT_finline_hint_functions))
1895 Opts.setInlining(CodeGenOptions::OnlyHintInlining);
1896 else
1897 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining);
1898 } else {
1899 Opts.setInlining(CodeGenOptions::NormalInlining);
1900 }
1901
1902 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to
1903 // -fdirect-access-external-data.
1904 Opts.DirectAccessExternalData =
1905 Args.hasArg(Ids: OPT_fdirect_access_external_data) ||
1906 (!Args.hasArg(Ids: OPT_fno_direct_access_external_data) &&
1907 LangOpts->PICLevel == 0);
1908
1909 if (Arg *A = Args.getLastArg(Ids: OPT_debug_info_kind_EQ)) {
1910 unsigned Val =
1911 llvm::StringSwitch<unsigned>(A->getValue())
1912 .Case(S: "line-tables-only", Value: llvm::codegenoptions::DebugLineTablesOnly)
1913 .Case(S: "line-directives-only",
1914 Value: llvm::codegenoptions::DebugDirectivesOnly)
1915 .Case(S: "constructor", Value: llvm::codegenoptions::DebugInfoConstructor)
1916 .Case(S: "limited", Value: llvm::codegenoptions::LimitedDebugInfo)
1917 .Case(S: "standalone", Value: llvm::codegenoptions::FullDebugInfo)
1918 .Case(S: "unused-types", Value: llvm::codegenoptions::UnusedTypeInfo)
1919 .Default(Value: ~0U);
1920 if (Val == ~0U)
1921 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args)
1922 << A->getValue();
1923 else
1924 Opts.setDebugInfo(static_cast<llvm::codegenoptions::DebugInfoKind>(Val));
1925 }
1926
1927 // If -fuse-ctor-homing is set and limited debug info is already on, then use
1928 // constructor homing, and vice versa for -fno-use-ctor-homing.
1929 if (const Arg *A =
1930 Args.getLastArg(Ids: OPT_fuse_ctor_homing, Ids: OPT_fno_use_ctor_homing)) {
1931 if (A->getOption().matches(ID: OPT_fuse_ctor_homing) &&
1932 Opts.getDebugInfo() == llvm::codegenoptions::LimitedDebugInfo)
1933 Opts.setDebugInfo(llvm::codegenoptions::DebugInfoConstructor);
1934 if (A->getOption().matches(ID: OPT_fno_use_ctor_homing) &&
1935 Opts.getDebugInfo() == llvm::codegenoptions::DebugInfoConstructor)
1936 Opts.setDebugInfo(llvm::codegenoptions::LimitedDebugInfo);
1937 }
1938
1939 for (const auto &Arg : Args.getAllArgValues(Id: OPT_fdebug_prefix_map_EQ)) {
1940 auto Split = StringRef(Arg).split(Separator: '=');
1941 Opts.DebugPrefixMap.emplace_back(Args&: Split.first, Args&: Split.second);
1942 }
1943
1944 for (const auto &Arg : Args.getAllArgValues(Id: OPT_fcoverage_prefix_map_EQ)) {
1945 auto Split = StringRef(Arg).split(Separator: '=');
1946 Opts.CoveragePrefixMap.emplace_back(Args&: Split.first, Args&: Split.second);
1947 }
1948
1949 const llvm::Triple::ArchType DebugEntryValueArchs[] = {
1950 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64,
1951 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips,
1952 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el};
1953
1954 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() &&
1955 llvm::is_contained(Range: DebugEntryValueArchs, Element: T.getArch()))
1956 Opts.EmitCallSiteInfo = true;
1957
1958 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) {
1959 Diags.Report(DiagID: diag::warn_ignoring_verify_debuginfo_preserve_export)
1960 << Opts.DIBugsReportFilePath;
1961 Opts.DIBugsReportFilePath = "";
1962 }
1963
1964 Opts.NewStructPathTBAA = !Args.hasArg(Ids: OPT_no_struct_path_tbaa) &&
1965 Args.hasArg(Ids: OPT_new_struct_path_tbaa);
1966 Opts.OptimizeSize = getOptimizationLevelSize(Args);
1967 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin;
1968 if (Opts.SimplifyLibCalls)
1969 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs;
1970 Opts.UnrollLoops =
1971 Args.hasFlag(Pos: OPT_funroll_loops, Neg: OPT_fno_unroll_loops,
1972 Default: (Opts.OptimizationLevel > 1));
1973 Opts.InterchangeLoops =
1974 Args.hasFlag(Pos: OPT_floop_interchange, Neg: OPT_fno_loop_interchange, Default: false);
1975 Opts.BinutilsVersion =
1976 std::string(Args.getLastArgValue(Id: OPT_fbinutils_version_EQ));
1977
1978 Opts.DebugTemplateAlias = Args.hasArg(Ids: OPT_gtemplate_alias);
1979
1980 Opts.DebugNameTable = static_cast<unsigned>(
1981 Args.hasArg(Ids: OPT_ggnu_pubnames)
1982 ? llvm::DICompileUnit::DebugNameTableKind::GNU
1983 : Args.hasArg(Ids: OPT_gpubnames)
1984 ? llvm::DICompileUnit::DebugNameTableKind::Default
1985 : llvm::DICompileUnit::DebugNameTableKind::None);
1986 if (const Arg *A = Args.getLastArg(Ids: OPT_gsimple_template_names_EQ)) {
1987 StringRef Value = A->getValue();
1988 if (Value != "simple" && Value != "mangled")
1989 Diags.Report(DiagID: diag::err_drv_unsupported_option_argument)
1990 << A->getSpelling() << A->getValue();
1991 Opts.setDebugSimpleTemplateNames(
1992 StringRef(A->getValue()) == "simple"
1993 ? llvm::codegenoptions::DebugTemplateNamesKind::Simple
1994 : llvm::codegenoptions::DebugTemplateNamesKind::Mangled);
1995 }
1996
1997 if (const Arg *A = Args.getLastArg(Ids: OPT_ftime_report, Ids: OPT_ftime_report_EQ,
1998 Ids: OPT_ftime_report_json)) {
1999 Opts.TimePasses = true;
2000
2001 // -ftime-report= is only for new pass manager.
2002 if (const Arg *EQ = Args.getLastArg(Ids: OPT_ftime_report_EQ)) {
2003 StringRef Val = EQ->getValue();
2004 if (Val == "per-pass")
2005 Opts.TimePassesPerRun = false;
2006 else if (Val == "per-pass-run")
2007 Opts.TimePassesPerRun = true;
2008 else
2009 Diags.Report(DiagID: diag::err_drv_invalid_value)
2010 << A->getAsString(Args) << A->getValue();
2011 }
2012
2013 if (Args.getLastArg(Ids: OPT_ftime_report_json))
2014 Opts.TimePassesJson = true;
2015 }
2016
2017 Opts.PrepareForLTO = false;
2018 Opts.PrepareForThinLTO = false;
2019 if (Arg *A = Args.getLastArg(Ids: OPT_flto_EQ)) {
2020 Opts.PrepareForLTO = true;
2021 StringRef S = A->getValue();
2022 if (S == "thin")
2023 Opts.PrepareForThinLTO = true;
2024 else if (S != "full")
2025 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args) << S;
2026 if (Args.hasArg(Ids: OPT_funified_lto))
2027 Opts.PrepareForThinLTO = true;
2028 }
2029 if (Arg *A = Args.getLastArg(Ids: OPT_fthinlto_index_EQ)) {
2030 if (IK.getLanguage() != Language::LLVM_IR)
2031 Diags.Report(DiagID: diag::err_drv_argument_only_allowed_with)
2032 << A->getAsString(Args) << "-x ir";
2033 Opts.ThinLTOIndexFile =
2034 std::string(Args.getLastArgValue(Id: OPT_fthinlto_index_EQ));
2035 }
2036 if (Arg *A = Args.getLastArg(Ids: OPT_save_temps_EQ))
2037 Opts.SaveTempsFilePrefix =
2038 llvm::StringSwitch<std::string>(A->getValue())
2039 .Case(S: "obj", Value: OutputFile)
2040 .Default(Value: llvm::sys::path::filename(path: OutputFile).str());
2041
2042 // The memory profile runtime appends the pid to make this name more unique.
2043 const char *MemProfileBasename = "memprof.profraw";
2044 if (Args.hasArg(Ids: OPT_fmemory_profile_EQ)) {
2045 SmallString<128> Path(Args.getLastArgValue(Id: OPT_fmemory_profile_EQ));
2046 llvm::sys::path::append(path&: Path, a: MemProfileBasename);
2047 Opts.MemoryProfileOutput = std::string(Path);
2048 } else if (Args.hasArg(Ids: OPT_fmemory_profile))
2049 Opts.MemoryProfileOutput = MemProfileBasename;
2050
2051 if (Opts.CoverageNotesFile.size() || Opts.CoverageDataFile.size()) {
2052 if (Args.hasArg(Ids: OPT_coverage_version_EQ)) {
2053 StringRef CoverageVersion = Args.getLastArgValue(Id: OPT_coverage_version_EQ);
2054 if (CoverageVersion.size() != 4) {
2055 Diags.Report(DiagID: diag::err_drv_invalid_value)
2056 << Args.getLastArg(Ids: OPT_coverage_version_EQ)->getAsString(Args)
2057 << CoverageVersion;
2058 } else {
2059 memcpy(dest: Opts.CoverageVersion, src: CoverageVersion.data(), n: 4);
2060 }
2061 }
2062 }
2063 // FIXME: For backend options that are not yet recorded as function
2064 // attributes in the IR, keep track of them so we can embed them in a
2065 // separate data section and use them when building the bitcode.
2066 for (const auto &A : Args) {
2067 // Do not encode output and input.
2068 if (A->getOption().getID() == options::OPT_o ||
2069 A->getOption().getID() == options::OPT_INPUT ||
2070 A->getOption().getID() == options::OPT_x ||
2071 A->getOption().getID() == options::OPT_fembed_bitcode ||
2072 A->getOption().matches(ID: options::OPT_W_Group))
2073 continue;
2074 ArgStringList ASL;
2075 A->render(Args, Output&: ASL);
2076 for (const auto &arg : ASL) {
2077 StringRef ArgStr(arg);
2078 llvm::append_range(C&: Opts.CmdArgs, R&: ArgStr);
2079 // using \00 to separate each commandline options.
2080 Opts.CmdArgs.push_back(x: '\0');
2081 }
2082 }
2083
2084 auto XRayInstrBundles =
2085 Args.getAllArgValues(Id: OPT_fxray_instrumentation_bundle);
2086 if (XRayInstrBundles.empty())
2087 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All;
2088 else
2089 for (const auto &A : XRayInstrBundles)
2090 parseXRayInstrumentationBundle(FlagName: "-fxray-instrumentation-bundle=", Bundle: A, Args,
2091 D&: Diags, S&: Opts.XRayInstrumentationBundle);
2092
2093 if (const Arg *A = Args.getLastArg(Ids: OPT_fcf_protection_EQ)) {
2094 StringRef Name = A->getValue();
2095 if (Name == "full") {
2096 Opts.CFProtectionReturn = 1;
2097 Opts.CFProtectionBranch = 1;
2098 } else if (Name == "return")
2099 Opts.CFProtectionReturn = 1;
2100 else if (Name == "branch")
2101 Opts.CFProtectionBranch = 1;
2102 else if (Name != "none")
2103 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
2104 }
2105
2106 if (Opts.CFProtectionBranch && T.isRISCV()) {
2107 if (const Arg *A = Args.getLastArg(Ids: OPT_mcf_branch_label_scheme_EQ)) {
2108 const auto Scheme =
2109 llvm::StringSwitch<CFBranchLabelSchemeKind>(A->getValue())
2110#define CF_BRANCH_LABEL_SCHEME(Kind, FlagVal) \
2111 .Case(#FlagVal, CFBranchLabelSchemeKind::Kind)
2112#include "clang/Basic/CFProtectionOptions.def"
2113 .Default(Value: CFBranchLabelSchemeKind::Default);
2114 if (Scheme != CFBranchLabelSchemeKind::Default)
2115 Opts.setCFBranchLabelScheme(Scheme);
2116 else
2117 Diags.Report(DiagID: diag::err_drv_invalid_value)
2118 << A->getAsString(Args) << A->getValue();
2119 }
2120 }
2121
2122 if (const Arg *A = Args.getLastArg(Ids: OPT_mfunction_return_EQ)) {
2123 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue())
2124 .Case(S: "keep", Value: llvm::FunctionReturnThunksKind::Keep)
2125 .Case(S: "thunk-extern", Value: llvm::FunctionReturnThunksKind::Extern)
2126 .Default(Value: llvm::FunctionReturnThunksKind::Invalid);
2127 // SystemZ might want to add support for "expolines."
2128 if (!T.isX86())
2129 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
2130 << A->getSpelling() << T.getTriple();
2131 else if (Val == llvm::FunctionReturnThunksKind::Invalid)
2132 Diags.Report(DiagID: diag::err_drv_invalid_value)
2133 << A->getAsString(Args) << A->getValue();
2134 else if (Val == llvm::FunctionReturnThunksKind::Extern &&
2135 Args.getLastArgValue(Id: OPT_mcmodel_EQ) == "large")
2136 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
2137 << A->getAsString(Args)
2138 << Args.getLastArg(Ids: OPT_mcmodel_EQ)->getAsString(Args);
2139 else
2140 Opts.FunctionReturnThunks = static_cast<unsigned>(Val);
2141 }
2142
2143 for (auto *A :
2144 Args.filtered(Ids: OPT_mlink_bitcode_file, Ids: OPT_mlink_builtin_bitcode)) {
2145 CodeGenOptions::BitcodeFileToLink F;
2146 F.Filename = A->getValue();
2147 if (A->getOption().matches(ID: OPT_mlink_builtin_bitcode)) {
2148 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded;
2149 // When linking CUDA bitcode, propagate function attributes so that
2150 // e.g. libdevice gets fast-math attrs if we're building with fast-math.
2151 F.PropagateAttrs = true;
2152 F.Internalize = true;
2153 }
2154 Opts.LinkBitcodeFiles.push_back(x: F);
2155 }
2156
2157 if (Arg *A = Args.getLastArg(Ids: OPT_fdenormal_fp_math_EQ)) {
2158 StringRef Val = A->getValue();
2159 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Str: Val);
2160 Opts.FP32DenormalMode = Opts.FPDenormalMode;
2161 if (!Opts.FPDenormalMode.isValid())
2162 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
2163 }
2164
2165 if (Arg *A = Args.getLastArg(Ids: OPT_fdenormal_fp_math_f32_EQ)) {
2166 StringRef Val = A->getValue();
2167 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Str: Val);
2168 if (!Opts.FP32DenormalMode.isValid())
2169 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
2170 }
2171
2172 // X86_32 has -fppc-struct-return and -freg-struct-return.
2173 // PPC32 has -maix-struct-return and -msvr4-struct-return.
2174 if (Arg *A =
2175 Args.getLastArg(Ids: OPT_fpcc_struct_return, Ids: OPT_freg_struct_return,
2176 Ids: OPT_maix_struct_return, Ids: OPT_msvr4_struct_return)) {
2177 // TODO: We might want to consider enabling these options on AIX in the
2178 // future.
2179 if (T.isOSAIX())
2180 Diags.Report(DiagID: diag::err_drv_unsupported_opt_for_target)
2181 << A->getSpelling() << T.str();
2182
2183 const Option &O = A->getOption();
2184 if (O.matches(ID: OPT_fpcc_struct_return) ||
2185 O.matches(ID: OPT_maix_struct_return)) {
2186 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack);
2187 } else {
2188 assert(O.matches(OPT_freg_struct_return) ||
2189 O.matches(OPT_msvr4_struct_return));
2190 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs);
2191 }
2192 }
2193
2194 if (Arg *A = Args.getLastArg(Ids: OPT_mxcoff_roptr)) {
2195 if (!T.isOSAIX())
2196 Diags.Report(DiagID: diag::err_drv_unsupported_opt_for_target)
2197 << A->getSpelling() << T.str();
2198
2199 // Since the storage mapping class is specified per csect,
2200 // without using data sections, it is less effective to use read-only
2201 // pointers. Using read-only pointers may cause other RO variables in the
2202 // same csect to become RW when the linker acts upon `-bforceimprw`;
2203 // therefore, we require that separate data sections
2204 // are used when `-mxcoff-roptr` is in effect. We respect the setting of
2205 // data-sections since we have not found reasons to do otherwise that
2206 // overcome the user surprise of not respecting the setting.
2207 if (!Args.hasFlag(Pos: OPT_fdata_sections, Neg: OPT_fno_data_sections, Default: false))
2208 Diags.Report(DiagID: diag::err_roptr_requires_data_sections);
2209
2210 Opts.XCOFFReadOnlyPointers = true;
2211 }
2212
2213 if (Arg *A = Args.getLastArg(Ids: OPT_mabi_EQ_quadword_atomics)) {
2214 if (!T.isOSAIX() || T.isPPC32())
2215 Diags.Report(DiagID: diag::err_drv_unsupported_opt_for_target)
2216 << A->getSpelling() << T.str();
2217 }
2218
2219 bool NeedLocTracking = false;
2220
2221 if (!Opts.OptRecordFile.empty())
2222 NeedLocTracking = true;
2223
2224 if (Arg *A = Args.getLastArg(Ids: OPT_opt_record_passes)) {
2225 Opts.OptRecordPasses = A->getValue();
2226 NeedLocTracking = true;
2227 }
2228
2229 if (Arg *A = Args.getLastArg(Ids: OPT_opt_record_format)) {
2230 Opts.OptRecordFormat = A->getValue();
2231 NeedLocTracking = true;
2232 }
2233
2234 Opts.OptimizationRemark =
2235 ParseOptimizationRemark(Diags, Args, OptEQ: OPT_Rpass_EQ, Name: "pass");
2236
2237 Opts.OptimizationRemarkMissed =
2238 ParseOptimizationRemark(Diags, Args, OptEQ: OPT_Rpass_missed_EQ, Name: "pass-missed");
2239
2240 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark(
2241 Diags, Args, OptEQ: OPT_Rpass_analysis_EQ, Name: "pass-analysis");
2242
2243 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() ||
2244 Opts.OptimizationRemarkMissed.hasValidPattern() ||
2245 Opts.OptimizationRemarkAnalysis.hasValidPattern();
2246
2247 bool UsingSampleProfile = !Opts.SampleProfileFile.empty();
2248 bool UsingProfile =
2249 UsingSampleProfile || !Opts.ProfileInstrumentUsePath.empty();
2250
2251 if (Opts.DiagnosticsWithHotness && !UsingProfile &&
2252 // An IR file will contain PGO as metadata
2253 IK.getLanguage() != Language::LLVM_IR)
2254 Diags.Report(DiagID: diag::warn_drv_diagnostics_hotness_requires_pgo)
2255 << "-fdiagnostics-show-hotness";
2256
2257 // Parse remarks hotness threshold. Valid value is either integer or 'auto'.
2258 if (auto *arg =
2259 Args.getLastArg(Ids: options::OPT_fdiagnostics_hotness_threshold_EQ)) {
2260 auto ResultOrErr =
2261 llvm::remarks::parseHotnessThresholdOption(Arg: arg->getValue());
2262
2263 if (!ResultOrErr) {
2264 Diags.Report(DiagID: diag::err_drv_invalid_diagnotics_hotness_threshold)
2265 << "-fdiagnostics-hotness-threshold=";
2266 } else {
2267 Opts.DiagnosticsHotnessThreshold = *ResultOrErr;
2268 if ((!Opts.DiagnosticsHotnessThreshold ||
2269 *Opts.DiagnosticsHotnessThreshold > 0) &&
2270 !UsingProfile)
2271 Diags.Report(DiagID: diag::warn_drv_diagnostics_hotness_requires_pgo)
2272 << "-fdiagnostics-hotness-threshold=";
2273 }
2274 }
2275
2276 if (auto *arg =
2277 Args.getLastArg(Ids: options::OPT_fdiagnostics_misexpect_tolerance_EQ)) {
2278 auto ResultOrErr = parseToleranceOption(Arg: arg->getValue());
2279
2280 if (!ResultOrErr) {
2281 Diags.Report(DiagID: diag::err_drv_invalid_diagnotics_misexpect_tolerance)
2282 << "-fdiagnostics-misexpect-tolerance=";
2283 } else {
2284 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr;
2285 if ((!Opts.DiagnosticsMisExpectTolerance ||
2286 *Opts.DiagnosticsMisExpectTolerance > 0) &&
2287 !UsingProfile)
2288 Diags.Report(DiagID: diag::warn_drv_diagnostics_misexpect_requires_pgo)
2289 << "-fdiagnostics-misexpect-tolerance=";
2290 }
2291 }
2292
2293 // If the user requested to use a sample profile for PGO, then the
2294 // backend will need to track source location information so the profile
2295 // can be incorporated into the IR.
2296 if (UsingSampleProfile)
2297 NeedLocTracking = true;
2298
2299 if (!Opts.StackUsageOutput.empty())
2300 NeedLocTracking = true;
2301
2302 // If the user requested a flag that requires source locations available in
2303 // the backend, make sure that the backend tracks source location information.
2304 if (NeedLocTracking &&
2305 Opts.getDebugInfo() == llvm::codegenoptions::NoDebugInfo)
2306 Opts.setDebugInfo(llvm::codegenoptions::LocTrackingOnly);
2307
2308 // Parse -fsanitize-recover= arguments.
2309 // FIXME: Report unrecoverable sanitizers incorrectly specified here.
2310 parseSanitizerKinds(FlagName: "-fsanitize-recover=",
2311 Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_recover_EQ), Diags,
2312 S&: Opts.SanitizeRecover);
2313 parseSanitizerKinds(FlagName: "-fsanitize-trap=",
2314 Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_trap_EQ), Diags,
2315 S&: Opts.SanitizeTrap);
2316 parseSanitizerKinds(FlagName: "-fsanitize-merge=",
2317 Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_merge_handlers_EQ),
2318 Diags, S&: Opts.SanitizeMergeHandlers);
2319
2320 // Parse -fsanitize-skip-hot-cutoff= arguments.
2321 Opts.SanitizeSkipHotCutoffs = parseSanitizerWeightedKinds(
2322 FlagName: "-fsanitize-skip-hot-cutoff=",
2323 Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_skip_hot_cutoff_EQ), Diags);
2324
2325 parseSanitizerKinds(
2326 FlagName: "-fsanitize-annotate-debug-info=",
2327 Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_annotate_debug_info_EQ), Diags,
2328 S&: Opts.SanitizeAnnotateDebugInfo);
2329
2330 if (StringRef V =
2331 Args.getLastArgValue(Id: OPT_fallow_runtime_check_skip_hot_cutoff_EQ);
2332 !V.empty()) {
2333 double A;
2334 if (V.getAsDouble(Result&: A) || A < 0.0 || A > 1.0) {
2335 Diags.Report(DiagID: diag::err_drv_invalid_value)
2336 << "-fallow-runtime-check-skip-hot-cutoff=" << V;
2337 } else {
2338 Opts.AllowRuntimeCheckSkipHotCutoff = A;
2339 }
2340 }
2341
2342 Opts.EmitVersionIdentMetadata = Args.hasFlag(Pos: OPT_Qy, Neg: OPT_Qn, Default: true);
2343
2344 if (!LangOpts->CUDAIsDevice)
2345 parsePointerAuthOptions(Opts&: Opts.PointerAuth, LangOpts: *LangOpts, Triple: T, Diags);
2346
2347 if (Args.hasArg(Ids: options::OPT_ffinite_loops))
2348 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always;
2349 else if (Args.hasArg(Ids: options::OPT_fno_finite_loops))
2350 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never;
2351
2352 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag(
2353 Pos: options::OPT_mamdgpu_ieee, Neg: options::OPT_mno_amdgpu_ieee, Default: true);
2354 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs)
2355 Diags.Report(DiagID: diag::err_drv_amdgpu_ieee_without_no_honor_nans);
2356
2357 Opts.StaticClosure = Args.hasArg(Ids: options::OPT_static_libclosure);
2358
2359 return Diags.getNumErrors() == NumErrorsBefore;
2360}
2361
2362static void GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts,
2363 ArgumentConsumer Consumer) {
2364 const DependencyOutputOptions &DependencyOutputOpts = Opts;
2365#define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \
2366 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
2367#include "clang/Driver/Options.inc"
2368#undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING
2369
2370 if (Opts.ShowIncludesDest != ShowIncludesDestination::None)
2371 GenerateArg(Consumer, OptSpecifier: OPT_show_includes);
2372
2373 for (const auto &Dep : Opts.ExtraDeps) {
2374 switch (Dep.second) {
2375 case EDK_SanitizeIgnorelist:
2376 // Sanitizer ignorelist arguments are generated from LanguageOptions.
2377 continue;
2378 case EDK_ModuleFile:
2379 // Module file arguments are generated from FrontendOptions and
2380 // HeaderSearchOptions.
2381 continue;
2382 case EDK_ProfileList:
2383 // Profile list arguments are generated from LanguageOptions via the
2384 // marshalling infrastructure.
2385 continue;
2386 case EDK_DepFileEntry:
2387 GenerateArg(Consumer, OptSpecifier: OPT_fdepfile_entry, Value: Dep.first);
2388 break;
2389 }
2390 }
2391}
2392
2393static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
2394 ArgList &Args, DiagnosticsEngine &Diags,
2395 frontend::ActionKind Action,
2396 bool ShowLineMarkers) {
2397 unsigned NumErrorsBefore = Diags.getNumErrors();
2398
2399 DependencyOutputOptions &DependencyOutputOpts = Opts;
2400#define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \
2401 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
2402#include "clang/Driver/Options.inc"
2403#undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING
2404
2405 if (Args.hasArg(Ids: OPT_show_includes)) {
2406 // Writing both /showIncludes and preprocessor output to stdout
2407 // would produce interleaved output, so use stderr for /showIncludes.
2408 // This behaves the same as cl.exe, when /E, /EP or /P are passed.
2409 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers)
2410 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr;
2411 else
2412 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout;
2413 } else {
2414 Opts.ShowIncludesDest = ShowIncludesDestination::None;
2415 }
2416
2417 // Add sanitizer ignorelists as extra dependencies.
2418 // They won't be discovered by the regular preprocessor, so
2419 // we let make / ninja to know about this implicit dependency.
2420 if (!Args.hasArg(Ids: OPT_fno_sanitize_ignorelist)) {
2421 for (const auto *A : Args.filtered(Ids: OPT_fsanitize_ignorelist_EQ)) {
2422 StringRef Val = A->getValue();
2423 if (!Val.contains(C: '='))
2424 Opts.ExtraDeps.emplace_back(args: std::string(Val), args: EDK_SanitizeIgnorelist);
2425 }
2426 if (Opts.IncludeSystemHeaders) {
2427 for (const auto *A : Args.filtered(Ids: OPT_fsanitize_system_ignorelist_EQ)) {
2428 StringRef Val = A->getValue();
2429 if (!Val.contains(C: '='))
2430 Opts.ExtraDeps.emplace_back(args: std::string(Val), args: EDK_SanitizeIgnorelist);
2431 }
2432 }
2433 }
2434
2435 // -fprofile-list= dependencies.
2436 for (const auto &Filename : Args.getAllArgValues(Id: OPT_fprofile_list_EQ))
2437 Opts.ExtraDeps.emplace_back(args: Filename, args: EDK_ProfileList);
2438
2439 // Propagate the extra dependencies.
2440 for (const auto *A : Args.filtered(Ids: OPT_fdepfile_entry))
2441 Opts.ExtraDeps.emplace_back(args: A->getValue(), args: EDK_DepFileEntry);
2442
2443 // Only the -fmodule-file=<file> form.
2444 for (const auto *A : Args.filtered(Ids: OPT_fmodule_file)) {
2445 StringRef Val = A->getValue();
2446 if (!Val.contains(C: '='))
2447 Opts.ExtraDeps.emplace_back(args: std::string(Val), args: EDK_ModuleFile);
2448 }
2449
2450 // Check for invalid combinations of header-include-format
2451 // and header-include-filtering.
2452 if (Opts.HeaderIncludeFormat == HIFMT_Textual &&
2453 Opts.HeaderIncludeFiltering != HIFIL_None) {
2454 if (Args.hasArg(Ids: OPT_header_include_format_EQ))
2455 Diags.Report(DiagID: diag::err_drv_print_header_cc1_invalid_combination)
2456 << headerIncludeFormatKindToString(K: Opts.HeaderIncludeFormat)
2457 << headerIncludeFilteringKindToString(K: Opts.HeaderIncludeFiltering);
2458 else
2459 Diags.Report(DiagID: diag::err_drv_print_header_cc1_invalid_filtering)
2460 << headerIncludeFilteringKindToString(K: Opts.HeaderIncludeFiltering);
2461 } else if (Opts.HeaderIncludeFormat == HIFMT_JSON &&
2462 Opts.HeaderIncludeFiltering == HIFIL_None) {
2463 if (Args.hasArg(Ids: OPT_header_include_filtering_EQ))
2464 Diags.Report(DiagID: diag::err_drv_print_header_cc1_invalid_combination)
2465 << headerIncludeFormatKindToString(K: Opts.HeaderIncludeFormat)
2466 << headerIncludeFilteringKindToString(K: Opts.HeaderIncludeFiltering);
2467 else
2468 Diags.Report(DiagID: diag::err_drv_print_header_cc1_invalid_format)
2469 << headerIncludeFormatKindToString(K: Opts.HeaderIncludeFormat);
2470 }
2471
2472 return Diags.getNumErrors() == NumErrorsBefore;
2473}
2474
2475static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) {
2476 // Color diagnostics default to auto ("on" if terminal supports) in the driver
2477 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color.
2478 // Support both clang's -f[no-]color-diagnostics and gcc's
2479 // -f[no-]diagnostics-colors[=never|always|auto].
2480 enum {
2481 Colors_On,
2482 Colors_Off,
2483 Colors_Auto
2484 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off;
2485 for (auto *A : Args) {
2486 const Option &O = A->getOption();
2487 if (O.matches(ID: options::OPT_fcolor_diagnostics)) {
2488 ShowColors = Colors_On;
2489 } else if (O.matches(ID: options::OPT_fno_color_diagnostics)) {
2490 ShowColors = Colors_Off;
2491 } else if (O.matches(ID: options::OPT_fdiagnostics_color_EQ)) {
2492 StringRef Value(A->getValue());
2493 if (Value == "always")
2494 ShowColors = Colors_On;
2495 else if (Value == "never")
2496 ShowColors = Colors_Off;
2497 else if (Value == "auto")
2498 ShowColors = Colors_Auto;
2499 }
2500 }
2501 return ShowColors == Colors_On ||
2502 (ShowColors == Colors_Auto &&
2503 llvm::sys::Process::StandardErrHasColors());
2504}
2505
2506static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes,
2507 DiagnosticsEngine &Diags) {
2508 bool Success = true;
2509 for (const auto &Prefix : VerifyPrefixes) {
2510 // Every prefix must start with a letter and contain only alphanumeric
2511 // characters, hyphens, and underscores.
2512 auto BadChar = llvm::find_if(Range: Prefix, P: [](char C) {
2513 return !isAlphanumeric(c: C) && C != '-' && C != '_';
2514 });
2515 if (BadChar != Prefix.end() || !isLetter(c: Prefix[0])) {
2516 Success = false;
2517 Diags.Report(DiagID: diag::err_drv_invalid_value) << "-verify=" << Prefix;
2518 Diags.Report(DiagID: diag::note_drv_verify_prefix_spelling);
2519 }
2520 }
2521 return Success;
2522}
2523
2524static void GenerateFileSystemArgs(const FileSystemOptions &Opts,
2525 ArgumentConsumer Consumer) {
2526 const FileSystemOptions &FileSystemOpts = Opts;
2527
2528#define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \
2529 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
2530#include "clang/Driver/Options.inc"
2531#undef FILE_SYSTEM_OPTION_WITH_MARSHALLING
2532}
2533
2534static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args,
2535 DiagnosticsEngine &Diags) {
2536 unsigned NumErrorsBefore = Diags.getNumErrors();
2537
2538 FileSystemOptions &FileSystemOpts = Opts;
2539
2540#define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \
2541 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
2542#include "clang/Driver/Options.inc"
2543#undef FILE_SYSTEM_OPTION_WITH_MARSHALLING
2544
2545 return Diags.getNumErrors() == NumErrorsBefore;
2546}
2547
2548static void GenerateMigratorArgs(const MigratorOptions &Opts,
2549 ArgumentConsumer Consumer) {
2550 const MigratorOptions &MigratorOpts = Opts;
2551#define MIGRATOR_OPTION_WITH_MARSHALLING(...) \
2552 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
2553#include "clang/Driver/Options.inc"
2554#undef MIGRATOR_OPTION_WITH_MARSHALLING
2555}
2556
2557static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args,
2558 DiagnosticsEngine &Diags) {
2559 unsigned NumErrorsBefore = Diags.getNumErrors();
2560
2561 MigratorOptions &MigratorOpts = Opts;
2562
2563#define MIGRATOR_OPTION_WITH_MARSHALLING(...) \
2564 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
2565#include "clang/Driver/Options.inc"
2566#undef MIGRATOR_OPTION_WITH_MARSHALLING
2567
2568 return Diags.getNumErrors() == NumErrorsBefore;
2569}
2570
2571void CompilerInvocationBase::GenerateDiagnosticArgs(
2572 const DiagnosticOptions &Opts, ArgumentConsumer Consumer,
2573 bool DefaultDiagColor) {
2574 const DiagnosticOptions *DiagnosticOpts = &Opts;
2575#define DIAG_OPTION_WITH_MARSHALLING(...) \
2576 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
2577#include "clang/Driver/Options.inc"
2578#undef DIAG_OPTION_WITH_MARSHALLING
2579
2580 if (!Opts.DiagnosticSerializationFile.empty())
2581 GenerateArg(Consumer, OptSpecifier: OPT_diagnostic_serialized_file,
2582 Value: Opts.DiagnosticSerializationFile);
2583
2584 if (Opts.ShowColors)
2585 GenerateArg(Consumer, OptSpecifier: OPT_fcolor_diagnostics);
2586
2587 if (Opts.VerifyDiagnostics &&
2588 llvm::is_contained(Range: Opts.VerifyPrefixes, Element: "expected"))
2589 GenerateArg(Consumer, OptSpecifier: OPT_verify);
2590
2591 for (const auto &Prefix : Opts.VerifyPrefixes)
2592 if (Prefix != "expected")
2593 GenerateArg(Consumer, OptSpecifier: OPT_verify_EQ, Value: Prefix);
2594
2595 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected();
2596 if (VIU == DiagnosticLevelMask::None) {
2597 // This is the default, don't generate anything.
2598 } else if (VIU == DiagnosticLevelMask::All) {
2599 GenerateArg(Consumer, OptSpecifier: OPT_verify_ignore_unexpected);
2600 } else {
2601 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0)
2602 GenerateArg(Consumer, OptSpecifier: OPT_verify_ignore_unexpected_EQ, Value: "note");
2603 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0)
2604 GenerateArg(Consumer, OptSpecifier: OPT_verify_ignore_unexpected_EQ, Value: "remark");
2605 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0)
2606 GenerateArg(Consumer, OptSpecifier: OPT_verify_ignore_unexpected_EQ, Value: "warning");
2607 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0)
2608 GenerateArg(Consumer, OptSpecifier: OPT_verify_ignore_unexpected_EQ, Value: "error");
2609 }
2610
2611 for (const auto &Warning : Opts.Warnings) {
2612 // This option is automatically generated from UndefPrefixes.
2613 if (Warning == "undef-prefix")
2614 continue;
2615 // This option is automatically generated from CheckConstexprFunctionBodies.
2616 if (Warning == "invalid-constexpr" || Warning == "no-invalid-constexpr")
2617 continue;
2618 Consumer(StringRef("-W") + Warning);
2619 }
2620
2621 for (const auto &Remark : Opts.Remarks) {
2622 // These arguments are generated from OptimizationRemark fields of
2623 // CodeGenOptions.
2624 StringRef IgnoredRemarks[] = {"pass", "no-pass",
2625 "pass-analysis", "no-pass-analysis",
2626 "pass-missed", "no-pass-missed"};
2627 if (llvm::is_contained(Range&: IgnoredRemarks, Element: Remark))
2628 continue;
2629
2630 Consumer(StringRef("-R") + Remark);
2631 }
2632
2633 if (!Opts.DiagnosticSuppressionMappingsFile.empty()) {
2634 GenerateArg(Consumer, OptSpecifier: OPT_warning_suppression_mappings_EQ,
2635 Value: Opts.DiagnosticSuppressionMappingsFile);
2636 }
2637}
2638
2639std::unique_ptr<DiagnosticOptions>
2640clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) {
2641 auto DiagOpts = std::make_unique<DiagnosticOptions>();
2642 unsigned MissingArgIndex, MissingArgCount;
2643 InputArgList Args = getDriverOptTable().ParseArgs(
2644 Args: Argv.slice(N: 1), MissingArgIndex, MissingArgCount);
2645
2646 bool ShowColors = true;
2647 if (std::optional<std::string> NoColor =
2648 llvm::sys::Process::GetEnv(name: "NO_COLOR");
2649 NoColor && !NoColor->empty()) {
2650 // If the user set the NO_COLOR environment variable, we'll honor that
2651 // unless the command line overrides it.
2652 ShowColors = false;
2653 }
2654
2655 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs.
2656 // Any errors that would be diagnosed here will also be diagnosed later,
2657 // when the DiagnosticsEngine actually exists.
2658 (void)ParseDiagnosticArgs(Opts&: *DiagOpts, Args, /*Diags=*/nullptr, DefaultDiagColor: ShowColors);
2659 return DiagOpts;
2660}
2661
2662bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
2663 DiagnosticsEngine *Diags,
2664 bool DefaultDiagColor) {
2665 std::optional<DiagnosticOptions> IgnoringDiagOpts;
2666 std::optional<DiagnosticsEngine> IgnoringDiags;
2667 if (!Diags) {
2668 IgnoringDiagOpts.emplace();
2669 IgnoringDiags.emplace(args: new DiagnosticIDs(), args&: *IgnoringDiagOpts,
2670 args: new IgnoringDiagConsumer());
2671 Diags = &*IgnoringDiags;
2672 }
2673
2674 unsigned NumErrorsBefore = Diags->getNumErrors();
2675
2676 // The key paths of diagnostic options defined in Options.td start with
2677 // "DiagnosticOpts->". Let's provide the expected variable name and type.
2678 DiagnosticOptions *DiagnosticOpts = &Opts;
2679
2680#define DIAG_OPTION_WITH_MARSHALLING(...) \
2681 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, __VA_ARGS__)
2682#include "clang/Driver/Options.inc"
2683#undef DIAG_OPTION_WITH_MARSHALLING
2684
2685 llvm::sys::Process::UseANSIEscapeCodes(enable: Opts.UseANSIEscapeCodes);
2686
2687 if (Arg *A =
2688 Args.getLastArg(Ids: OPT_diagnostic_serialized_file, Ids: OPT__serialize_diags))
2689 Opts.DiagnosticSerializationFile = A->getValue();
2690 Opts.ShowColors = parseShowColorsArgs(Args, DefaultColor: DefaultDiagColor);
2691
2692 Opts.VerifyDiagnostics = Args.hasArg(Ids: OPT_verify) || Args.hasArg(Ids: OPT_verify_EQ);
2693 Opts.VerifyPrefixes = Args.getAllArgValues(Id: OPT_verify_EQ);
2694 if (Args.hasArg(Ids: OPT_verify))
2695 Opts.VerifyPrefixes.push_back(x: "expected");
2696 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and
2697 // then sort it to prepare for fast lookup using std::binary_search.
2698 if (!checkVerifyPrefixes(VerifyPrefixes: Opts.VerifyPrefixes, Diags&: *Diags))
2699 Opts.VerifyDiagnostics = false;
2700 else
2701 llvm::sort(C&: Opts.VerifyPrefixes);
2702 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None;
2703 parseDiagnosticLevelMask(
2704 FlagName: "-verify-ignore-unexpected=",
2705 Levels: Args.getAllArgValues(Id: OPT_verify_ignore_unexpected_EQ), Diags&: *Diags, M&: DiagMask);
2706 if (Args.hasArg(Ids: OPT_verify_ignore_unexpected))
2707 DiagMask = DiagnosticLevelMask::All;
2708 Opts.setVerifyIgnoreUnexpected(DiagMask);
2709 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
2710 Diags->Report(DiagID: diag::warn_ignoring_ftabstop_value)
2711 << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
2712 Opts.TabStop = DiagnosticOptions::DefaultTabStop;
2713 }
2714
2715 if (const Arg *A = Args.getLastArg(Ids: OPT_warning_suppression_mappings_EQ))
2716 Opts.DiagnosticSuppressionMappingsFile = A->getValue();
2717
2718 addDiagnosticArgs(Args, Group: OPT_W_Group, GroupWithValue: OPT_W_value_Group, Diagnostics&: Opts.Warnings);
2719 addDiagnosticArgs(Args, Group: OPT_R_Group, GroupWithValue: OPT_R_value_Group, Diagnostics&: Opts.Remarks);
2720
2721 return Diags->getNumErrors() == NumErrorsBefore;
2722}
2723
2724/// Parse the argument to the -ftest-module-file-extension
2725/// command-line argument.
2726///
2727/// \returns true on error, false on success.
2728static bool parseTestModuleFileExtensionArg(StringRef Arg,
2729 std::string &BlockName,
2730 unsigned &MajorVersion,
2731 unsigned &MinorVersion,
2732 bool &Hashed,
2733 std::string &UserInfo) {
2734 SmallVector<StringRef, 5> Args;
2735 Arg.split(A&: Args, Separator: ':', MaxSplit: 5);
2736 if (Args.size() < 5)
2737 return true;
2738
2739 BlockName = std::string(Args[0]);
2740 if (Args[1].getAsInteger(Radix: 10, Result&: MajorVersion)) return true;
2741 if (Args[2].getAsInteger(Radix: 10, Result&: MinorVersion)) return true;
2742 if (Args[3].getAsInteger(Radix: 2, Result&: Hashed)) return true;
2743 if (Args.size() > 4)
2744 UserInfo = std::string(Args[4]);
2745 return false;
2746}
2747
2748/// Return a table that associates command line option specifiers with the
2749/// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is
2750/// intentionally missing, as this case is handled separately from other
2751/// frontend options.
2752static const auto &getFrontendActionTable() {
2753 static const std::pair<frontend::ActionKind, unsigned> Table[] = {
2754 {frontend::ASTDeclList, OPT_ast_list},
2755
2756 {frontend::ASTDump, OPT_ast_dump_all_EQ},
2757 {frontend::ASTDump, OPT_ast_dump_all},
2758 {frontend::ASTDump, OPT_ast_dump_EQ},
2759 {frontend::ASTDump, OPT_ast_dump},
2760 {frontend::ASTDump, OPT_ast_dump_lookups},
2761 {frontend::ASTDump, OPT_ast_dump_decl_types},
2762
2763 {frontend::ASTPrint, OPT_ast_print},
2764 {frontend::ASTView, OPT_ast_view},
2765 {frontend::DumpCompilerOptions, OPT_compiler_options_dump},
2766 {frontend::DumpRawTokens, OPT_dump_raw_tokens},
2767 {frontend::DumpTokens, OPT_dump_tokens},
2768 {frontend::EmitAssembly, OPT_S},
2769 {frontend::EmitBC, OPT_emit_llvm_bc},
2770 {frontend::EmitCIR, OPT_emit_cir},
2771 {frontend::EmitHTML, OPT_emit_html},
2772 {frontend::EmitLLVM, OPT_emit_llvm},
2773 {frontend::EmitLLVMOnly, OPT_emit_llvm_only},
2774 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only},
2775 {frontend::EmitObj, OPT_emit_obj},
2776 {frontend::ExtractAPI, OPT_extract_api},
2777
2778 {frontend::FixIt, OPT_fixit_EQ},
2779 {frontend::FixIt, OPT_fixit},
2780
2781 {frontend::GenerateModule, OPT_emit_module},
2782 {frontend::GenerateModuleInterface, OPT_emit_module_interface},
2783 {frontend::GenerateReducedModuleInterface,
2784 OPT_emit_reduced_module_interface},
2785 {frontend::GenerateHeaderUnit, OPT_emit_header_unit},
2786 {frontend::GeneratePCH, OPT_emit_pch},
2787 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs},
2788 {frontend::InitOnly, OPT_init_only},
2789 {frontend::ParseSyntaxOnly, OPT_fsyntax_only},
2790 {frontend::ModuleFileInfo, OPT_module_file_info},
2791 {frontend::VerifyPCH, OPT_verify_pch},
2792 {frontend::PrintPreamble, OPT_print_preamble},
2793 {frontend::PrintPreprocessedInput, OPT_E},
2794 {frontend::TemplightDump, OPT_templight_dump},
2795 {frontend::RewriteMacros, OPT_rewrite_macros},
2796 {frontend::RewriteObjC, OPT_rewrite_objc},
2797 {frontend::RewriteTest, OPT_rewrite_test},
2798 {frontend::RunAnalysis, OPT_analyze},
2799 {frontend::RunPreprocessorOnly, OPT_Eonly},
2800 {frontend::PrintDependencyDirectivesSourceMinimizerOutput,
2801 OPT_print_dependency_directives_minimized_source},
2802 };
2803
2804 return Table;
2805}
2806
2807/// Maps command line option to frontend action.
2808static std::optional<frontend::ActionKind>
2809getFrontendAction(OptSpecifier &Opt) {
2810 for (const auto &ActionOpt : getFrontendActionTable())
2811 if (ActionOpt.second == Opt.getID())
2812 return ActionOpt.first;
2813
2814 return std::nullopt;
2815}
2816
2817/// Maps frontend action to command line option.
2818static std::optional<OptSpecifier>
2819getProgramActionOpt(frontend::ActionKind ProgramAction) {
2820 for (const auto &ActionOpt : getFrontendActionTable())
2821 if (ActionOpt.first == ProgramAction)
2822 return OptSpecifier(ActionOpt.second);
2823
2824 return std::nullopt;
2825}
2826
2827static void GenerateFrontendArgs(const FrontendOptions &Opts,
2828 ArgumentConsumer Consumer, bool IsHeader) {
2829 const FrontendOptions &FrontendOpts = Opts;
2830#define FRONTEND_OPTION_WITH_MARSHALLING(...) \
2831 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
2832#include "clang/Driver/Options.inc"
2833#undef FRONTEND_OPTION_WITH_MARSHALLING
2834
2835 std::optional<OptSpecifier> ProgramActionOpt =
2836 getProgramActionOpt(ProgramAction: Opts.ProgramAction);
2837
2838 // Generating a simple flag covers most frontend actions.
2839 std::function<void()> GenerateProgramAction = [&]() {
2840 GenerateArg(Consumer, OptSpecifier: *ProgramActionOpt);
2841 };
2842
2843 if (!ProgramActionOpt) {
2844 // PluginAction is the only program action handled separately.
2845 assert(Opts.ProgramAction == frontend::PluginAction &&
2846 "Frontend action without option.");
2847 GenerateProgramAction = [&]() {
2848 GenerateArg(Consumer, OptSpecifier: OPT_plugin, Value: Opts.ActionName);
2849 };
2850 }
2851
2852 // FIXME: Simplify the complex 'AST dump' command line.
2853 if (Opts.ProgramAction == frontend::ASTDump) {
2854 GenerateProgramAction = [&]() {
2855 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via
2856 // marshalling infrastructure.
2857
2858 if (Opts.ASTDumpFormat != ADOF_Default) {
2859 StringRef Format;
2860 switch (Opts.ASTDumpFormat) {
2861 case ADOF_Default:
2862 llvm_unreachable("Default AST dump format.");
2863 case ADOF_JSON:
2864 Format = "json";
2865 break;
2866 }
2867
2868 if (Opts.ASTDumpAll)
2869 GenerateArg(Consumer, OptSpecifier: OPT_ast_dump_all_EQ, Value: Format);
2870 if (Opts.ASTDumpDecls)
2871 GenerateArg(Consumer, OptSpecifier: OPT_ast_dump_EQ, Value: Format);
2872 } else {
2873 if (Opts.ASTDumpAll)
2874 GenerateArg(Consumer, OptSpecifier: OPT_ast_dump_all);
2875 if (Opts.ASTDumpDecls)
2876 GenerateArg(Consumer, OptSpecifier: OPT_ast_dump);
2877 }
2878 };
2879 }
2880
2881 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) {
2882 GenerateProgramAction = [&]() {
2883 GenerateArg(Consumer, OptSpecifier: OPT_fixit_EQ, Value: Opts.FixItSuffix);
2884 };
2885 }
2886
2887 GenerateProgramAction();
2888
2889 for (const auto &PluginArgs : Opts.PluginArgs) {
2890 Option Opt = getDriverOptTable().getOption(Opt: OPT_plugin_arg);
2891 for (const auto &PluginArg : PluginArgs.second)
2892 denormalizeString(Consumer,
2893 Spelling: Opt.getPrefix() + Opt.getName() + PluginArgs.first,
2894 OptClass: Opt.getKind(), TableIndex: 0, Value: PluginArg);
2895 }
2896
2897 for (const auto &Ext : Opts.ModuleFileExtensions)
2898 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Val: Ext.get()))
2899 GenerateArg(Consumer, OptSpecifier: OPT_ftest_module_file_extension_EQ, Value: TestExt->str());
2900
2901 if (!Opts.CodeCompletionAt.FileName.empty())
2902 GenerateArg(Consumer, OptSpecifier: OPT_code_completion_at,
2903 Value: Opts.CodeCompletionAt.ToString());
2904
2905 for (const auto &Plugin : Opts.Plugins)
2906 GenerateArg(Consumer, OptSpecifier: OPT_load, Value: Plugin);
2907
2908 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction.
2909
2910 for (const auto &ModuleFile : Opts.ModuleFiles)
2911 GenerateArg(Consumer, OptSpecifier: OPT_fmodule_file, Value: ModuleFile);
2912
2913 if (Opts.AuxTargetCPU)
2914 GenerateArg(Consumer, OptSpecifier: OPT_aux_target_cpu, Value: *Opts.AuxTargetCPU);
2915
2916 if (Opts.AuxTargetFeatures)
2917 for (const auto &Feature : *Opts.AuxTargetFeatures)
2918 GenerateArg(Consumer, OptSpecifier: OPT_aux_target_feature, Value: Feature);
2919
2920 {
2921 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : "";
2922 StringRef ModuleMap =
2923 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : "";
2924 StringRef HeaderUnit = "";
2925 switch (Opts.DashX.getHeaderUnitKind()) {
2926 case InputKind::HeaderUnit_None:
2927 break;
2928 case InputKind::HeaderUnit_User:
2929 HeaderUnit = "-user";
2930 break;
2931 case InputKind::HeaderUnit_System:
2932 HeaderUnit = "-system";
2933 break;
2934 case InputKind::HeaderUnit_Abs:
2935 HeaderUnit = "-header-unit";
2936 break;
2937 }
2938 StringRef Header = IsHeader ? "-header" : "";
2939
2940 StringRef Lang;
2941 switch (Opts.DashX.getLanguage()) {
2942 case Language::C:
2943 Lang = "c";
2944 break;
2945 case Language::OpenCL:
2946 Lang = "cl";
2947 break;
2948 case Language::OpenCLCXX:
2949 Lang = "clcpp";
2950 break;
2951 case Language::CUDA:
2952 Lang = "cuda";
2953 break;
2954 case Language::HIP:
2955 Lang = "hip";
2956 break;
2957 case Language::CXX:
2958 Lang = "c++";
2959 break;
2960 case Language::ObjC:
2961 Lang = "objective-c";
2962 break;
2963 case Language::ObjCXX:
2964 Lang = "objective-c++";
2965 break;
2966 case Language::Asm:
2967 Lang = "assembler-with-cpp";
2968 break;
2969 case Language::Unknown:
2970 assert(Opts.DashX.getFormat() == InputKind::Precompiled &&
2971 "Generating -x argument for unknown language (not precompiled).");
2972 Lang = "ast";
2973 break;
2974 case Language::LLVM_IR:
2975 Lang = "ir";
2976 break;
2977 case Language::HLSL:
2978 Lang = "hlsl";
2979 break;
2980 case Language::CIR:
2981 Lang = "cir";
2982 break;
2983 }
2984
2985 GenerateArg(Consumer, OptSpecifier: OPT_x,
2986 Value: Lang + HeaderUnit + Header + ModuleMap + Preprocessed);
2987 }
2988
2989 // OPT_INPUT has a unique class, generate it directly.
2990 for (const auto &Input : Opts.Inputs)
2991 Consumer(Input.getFile());
2992}
2993
2994static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
2995 DiagnosticsEngine &Diags, bool &IsHeaderFile) {
2996 unsigned NumErrorsBefore = Diags.getNumErrors();
2997
2998 FrontendOptions &FrontendOpts = Opts;
2999
3000#define FRONTEND_OPTION_WITH_MARSHALLING(...) \
3001 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
3002#include "clang/Driver/Options.inc"
3003#undef FRONTEND_OPTION_WITH_MARSHALLING
3004
3005 Opts.ProgramAction = frontend::ParseSyntaxOnly;
3006 if (const Arg *A = Args.getLastArg(Ids: OPT_Action_Group)) {
3007 OptSpecifier Opt = OptSpecifier(A->getOption().getID());
3008 std::optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt);
3009 assert(ProgramAction && "Option specifier not in Action_Group.");
3010
3011 if (ProgramAction == frontend::ASTDump &&
3012 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) {
3013 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue())
3014 .CaseLower(S: "default", Value: ADOF_Default)
3015 .CaseLower(S: "json", Value: ADOF_JSON)
3016 .Default(Value: std::numeric_limits<unsigned>::max());
3017
3018 if (Val != std::numeric_limits<unsigned>::max())
3019 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val);
3020 else {
3021 Diags.Report(DiagID: diag::err_drv_invalid_value)
3022 << A->getAsString(Args) << A->getValue();
3023 Opts.ASTDumpFormat = ADOF_Default;
3024 }
3025 }
3026
3027 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ)
3028 Opts.FixItSuffix = A->getValue();
3029
3030 if (ProgramAction == frontend::GenerateInterfaceStubs) {
3031 StringRef ArgStr =
3032 Args.hasArg(Ids: OPT_interface_stub_version_EQ)
3033 ? Args.getLastArgValue(Id: OPT_interface_stub_version_EQ)
3034 : "ifs-v1";
3035 if (ArgStr == "experimental-yaml-elf-v1" ||
3036 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" ||
3037 ArgStr == "experimental-tapi-elf-v1") {
3038 std::string ErrorMessage =
3039 "Invalid interface stub format: " + ArgStr.str() +
3040 " is deprecated.";
3041 Diags.Report(DiagID: diag::err_drv_invalid_value)
3042 << "Must specify a valid interface stub format type, ie: "
3043 "-interface-stub-version=ifs-v1"
3044 << ErrorMessage;
3045 ProgramAction = frontend::ParseSyntaxOnly;
3046 } else if (!ArgStr.starts_with(Prefix: "ifs-")) {
3047 std::string ErrorMessage =
3048 "Invalid interface stub format: " + ArgStr.str() + ".";
3049 Diags.Report(DiagID: diag::err_drv_invalid_value)
3050 << "Must specify a valid interface stub format type, ie: "
3051 "-interface-stub-version=ifs-v1"
3052 << ErrorMessage;
3053 ProgramAction = frontend::ParseSyntaxOnly;
3054 }
3055 }
3056
3057 Opts.ProgramAction = *ProgramAction;
3058
3059 // Catch common mistakes when multiple actions are specified for cc1 (e.g.
3060 // -S -emit-llvm means -emit-llvm while -emit-llvm -S means -S). However, to
3061 // support driver `-c -Xclang ACTION` (-cc1 -emit-llvm file -main-file-name
3062 // X ACTION), we suppress the error when the two actions are separated by
3063 // -main-file-name.
3064 //
3065 // As an exception, accept composable -ast-dump*.
3066 if (!A->getSpelling().starts_with(Prefix: "-ast-dump")) {
3067 const Arg *SavedAction = nullptr;
3068 for (const Arg *AA :
3069 Args.filtered(Ids: OPT_Action_Group, Ids: OPT_main_file_name)) {
3070 if (AA->getOption().matches(ID: OPT_main_file_name)) {
3071 SavedAction = nullptr;
3072 } else if (!SavedAction) {
3073 SavedAction = AA;
3074 } else {
3075 if (!A->getOption().matches(ID: OPT_ast_dump_EQ))
3076 Diags.Report(DiagID: diag::err_fe_invalid_multiple_actions)
3077 << SavedAction->getSpelling() << A->getSpelling();
3078 break;
3079 }
3080 }
3081 }
3082 }
3083
3084 if (const Arg* A = Args.getLastArg(Ids: OPT_plugin)) {
3085 Opts.Plugins.emplace_back(args: A->getValue(N: 0));
3086 Opts.ProgramAction = frontend::PluginAction;
3087 Opts.ActionName = A->getValue();
3088 }
3089 for (const auto *AA : Args.filtered(Ids: OPT_plugin_arg))
3090 Opts.PluginArgs[AA->getValue(N: 0)].emplace_back(args: AA->getValue(N: 1));
3091
3092 for (const std::string &Arg :
3093 Args.getAllArgValues(Id: OPT_ftest_module_file_extension_EQ)) {
3094 std::string BlockName;
3095 unsigned MajorVersion;
3096 unsigned MinorVersion;
3097 bool Hashed;
3098 std::string UserInfo;
3099 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion,
3100 MinorVersion, Hashed, UserInfo)) {
3101 Diags.Report(DiagID: diag::err_test_module_file_extension_format) << Arg;
3102
3103 continue;
3104 }
3105
3106 // Add the testing module file extension.
3107 Opts.ModuleFileExtensions.push_back(
3108 x: std::make_shared<TestModuleFileExtension>(
3109 args&: BlockName, args&: MajorVersion, args&: MinorVersion, args&: Hashed, args&: UserInfo));
3110 }
3111
3112 if (const Arg *A = Args.getLastArg(Ids: OPT_code_completion_at)) {
3113 Opts.CodeCompletionAt =
3114 ParsedSourceLocation::FromString(Str: A->getValue());
3115 if (Opts.CodeCompletionAt.FileName.empty()) {
3116 Diags.Report(DiagID: diag::err_drv_invalid_value)
3117 << A->getAsString(Args) << A->getValue();
3118 Diags.Report(DiagID: diag::note_command_line_code_loc_requirement);
3119 }
3120 }
3121
3122 Opts.Plugins = Args.getAllArgValues(Id: OPT_load);
3123 Opts.ASTDumpDecls = Args.hasArg(Ids: OPT_ast_dump, Ids: OPT_ast_dump_EQ);
3124 Opts.ASTDumpAll = Args.hasArg(Ids: OPT_ast_dump_all, Ids: OPT_ast_dump_all_EQ);
3125 // Only the -fmodule-file=<file> form.
3126 for (const auto *A : Args.filtered(Ids: OPT_fmodule_file)) {
3127 StringRef Val = A->getValue();
3128 if (!Val.contains(C: '='))
3129 Opts.ModuleFiles.push_back(x: std::string(Val));
3130 }
3131
3132 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule)
3133 Diags.Report(DiagID: diag::err_drv_argument_only_allowed_with) << "-fsystem-module"
3134 << "-emit-module";
3135 if (Args.hasArg(Ids: OPT_fclangir) || Args.hasArg(Ids: OPT_emit_cir))
3136 Opts.UseClangIRPipeline = true;
3137
3138#if CLANG_ENABLE_CIR
3139 if (Args.hasArg(OPT_clangir_disable_passes))
3140 Opts.ClangIRDisablePasses = true;
3141
3142 if (Args.hasArg(OPT_clangir_disable_verifier))
3143 Opts.ClangIRDisableCIRVerifier = true;
3144#endif // CLANG_ENABLE_CIR
3145
3146 if (Args.hasArg(Ids: OPT_aux_target_cpu))
3147 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(Id: OPT_aux_target_cpu));
3148 if (Args.hasArg(Ids: OPT_aux_target_feature))
3149 Opts.AuxTargetFeatures = Args.getAllArgValues(Id: OPT_aux_target_feature);
3150
3151 InputKind DashX(Language::Unknown);
3152 if (const Arg *A = Args.getLastArg(Ids: OPT_x)) {
3153 StringRef XValue = A->getValue();
3154
3155 // Parse suffixes:
3156 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'.
3157 // FIXME: Supporting '<lang>-header-cpp-output' would be useful.
3158 bool Preprocessed = XValue.consume_back(Suffix: "-cpp-output");
3159 bool ModuleMap = XValue.consume_back(Suffix: "-module-map");
3160 // Detect and consume the header indicator.
3161 bool IsHeader =
3162 XValue != "precompiled-header" && XValue.consume_back(Suffix: "-header");
3163
3164 // If we have c++-{user,system}-header, that indicates a header unit input
3165 // likewise, if the user put -fmodule-header together with a header with an
3166 // absolute path (header-unit-header).
3167 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None;
3168 if (IsHeader || Preprocessed) {
3169 if (XValue.consume_back(Suffix: "-header-unit"))
3170 HUK = InputKind::HeaderUnit_Abs;
3171 else if (XValue.consume_back(Suffix: "-system"))
3172 HUK = InputKind::HeaderUnit_System;
3173 else if (XValue.consume_back(Suffix: "-user"))
3174 HUK = InputKind::HeaderUnit_User;
3175 }
3176
3177 // The value set by this processing is an un-preprocessed source which is
3178 // not intended to be a module map or header unit.
3179 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap &&
3180 HUK == InputKind::HeaderUnit_None;
3181
3182 // Principal languages.
3183 DashX = llvm::StringSwitch<InputKind>(XValue)
3184 .Case(S: "c", Value: Language::C)
3185 .Case(S: "cl", Value: Language::OpenCL)
3186 .Case(S: "clcpp", Value: Language::OpenCLCXX)
3187 .Case(S: "cuda", Value: Language::CUDA)
3188 .Case(S: "hip", Value: Language::HIP)
3189 .Case(S: "c++", Value: Language::CXX)
3190 .Case(S: "objective-c", Value: Language::ObjC)
3191 .Case(S: "objective-c++", Value: Language::ObjCXX)
3192 .Case(S: "hlsl", Value: Language::HLSL)
3193 .Default(Value: Language::Unknown);
3194
3195 // "objc[++]-cpp-output" is an acceptable synonym for
3196 // "objective-c[++]-cpp-output".
3197 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap &&
3198 HUK == InputKind::HeaderUnit_None)
3199 DashX = llvm::StringSwitch<InputKind>(XValue)
3200 .Case(S: "objc", Value: Language::ObjC)
3201 .Case(S: "objc++", Value: Language::ObjCXX)
3202 .Default(Value: Language::Unknown);
3203
3204 // Some special cases cannot be combined with suffixes.
3205 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap &&
3206 HUK == InputKind::HeaderUnit_None)
3207 DashX = llvm::StringSwitch<InputKind>(XValue)
3208 .Case(S: "cpp-output", Value: InputKind(Language::C).getPreprocessed())
3209 .Case(S: "assembler-with-cpp", Value: Language::Asm)
3210 .Cases(S0: "ast", S1: "pcm", S2: "precompiled-header",
3211 Value: InputKind(Language::Unknown, InputKind::Precompiled))
3212 .Case(S: "ir", Value: Language::LLVM_IR)
3213 .Case(S: "cir", Value: Language::CIR)
3214 .Default(Value: Language::Unknown);
3215
3216 if (DashX.isUnknown())
3217 Diags.Report(DiagID: diag::err_drv_invalid_value)
3218 << A->getAsString(Args) << A->getValue();
3219
3220 if (Preprocessed)
3221 DashX = DashX.getPreprocessed();
3222 // A regular header is considered mutually exclusive with a header unit.
3223 if (HUK != InputKind::HeaderUnit_None) {
3224 DashX = DashX.withHeaderUnit(HU: HUK);
3225 IsHeaderFile = true;
3226 } else if (IsHeaderFile)
3227 DashX = DashX.getHeader();
3228 if (ModuleMap)
3229 DashX = DashX.withFormat(F: InputKind::ModuleMap);
3230 }
3231
3232 // '-' is the default input if none is given.
3233 std::vector<std::string> Inputs = Args.getAllArgValues(Id: OPT_INPUT);
3234 Opts.Inputs.clear();
3235 if (Inputs.empty())
3236 Inputs.push_back(x: "-");
3237
3238 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None &&
3239 Inputs.size() > 1)
3240 Diags.Report(DiagID: diag::err_drv_header_unit_extra_inputs) << Inputs[1];
3241
3242 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
3243 InputKind IK = DashX;
3244 if (IK.isUnknown()) {
3245 IK = FrontendOptions::getInputKindForExtension(
3246 Extension: StringRef(Inputs[i]).rsplit(Separator: '.').second);
3247 // FIXME: Warn on this?
3248 if (IK.isUnknown())
3249 IK = Language::C;
3250 // FIXME: Remove this hack.
3251 if (i == 0)
3252 DashX = IK;
3253 }
3254
3255 bool IsSystem = false;
3256
3257 // The -emit-module action implicitly takes a module map.
3258 if (Opts.ProgramAction == frontend::GenerateModule &&
3259 IK.getFormat() == InputKind::Source) {
3260 IK = IK.withFormat(F: InputKind::ModuleMap);
3261 IsSystem = Opts.IsSystemModule;
3262 }
3263
3264 Opts.Inputs.emplace_back(Args: std::move(Inputs[i]), Args&: IK, Args&: IsSystem);
3265 }
3266
3267 Opts.DashX = DashX;
3268
3269 return Diags.getNumErrors() == NumErrorsBefore;
3270}
3271
3272std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
3273 void *MainAddr) {
3274 std::string ClangExecutable =
3275 llvm::sys::fs::getMainExecutable(argv0: Argv0, MainExecAddr: MainAddr);
3276 return Driver::GetResourcesPath(BinaryPath: ClangExecutable);
3277}
3278
3279static void GenerateHeaderSearchArgs(const HeaderSearchOptions &Opts,
3280 ArgumentConsumer Consumer) {
3281 const HeaderSearchOptions *HeaderSearchOpts = &Opts;
3282#define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \
3283 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
3284#include "clang/Driver/Options.inc"
3285#undef HEADER_SEARCH_OPTION_WITH_MARSHALLING
3286
3287 if (Opts.UseLibcxx)
3288 GenerateArg(Consumer, OptSpecifier: OPT_stdlib_EQ, Value: "libc++");
3289
3290 if (!Opts.ModuleCachePath.empty())
3291 GenerateArg(Consumer, OptSpecifier: OPT_fmodules_cache_path, Value: Opts.ModuleCachePath);
3292
3293 for (const auto &File : Opts.PrebuiltModuleFiles)
3294 GenerateArg(Consumer, OptSpecifier: OPT_fmodule_file, Value: File.first + "=" + File.second);
3295
3296 for (const auto &Path : Opts.PrebuiltModulePaths)
3297 GenerateArg(Consumer, OptSpecifier: OPT_fprebuilt_module_path, Value: Path);
3298
3299 for (const auto &Macro : Opts.ModulesIgnoreMacros)
3300 GenerateArg(Consumer, OptSpecifier: OPT_fmodules_ignore_macro, Value: Macro.val());
3301
3302 auto Matches = [](const HeaderSearchOptions::Entry &Entry,
3303 llvm::ArrayRef<frontend::IncludeDirGroup> Groups,
3304 std::optional<bool> IsFramework,
3305 std::optional<bool> IgnoreSysRoot) {
3306 return llvm::is_contained(Range&: Groups, Element: Entry.Group) &&
3307 (!IsFramework || (Entry.IsFramework == *IsFramework)) &&
3308 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot));
3309 };
3310
3311 auto It = Opts.UserEntries.begin();
3312 auto End = Opts.UserEntries.end();
3313
3314 // Add -I... and -F... options in order.
3315 for (; It < End && Matches(*It, {frontend::Angled}, std::nullopt, true);
3316 ++It) {
3317 OptSpecifier Opt = [It, Matches]() {
3318 if (Matches(*It, frontend::Angled, true, true))
3319 return OPT_F;
3320 if (Matches(*It, frontend::Angled, false, true))
3321 return OPT_I;
3322 llvm_unreachable("Unexpected HeaderSearchOptions::Entry.");
3323 }();
3324
3325 GenerateArg(Consumer, OptSpecifier: Opt, Value: It->Path);
3326 }
3327
3328 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may
3329 // have already been generated as "-I[xx]yy". If that's the case, their
3330 // position on command line was such that this has no semantic impact on
3331 // include paths.
3332 for (; It < End &&
3333 Matches(*It, {frontend::After, frontend::Angled}, false, true);
3334 ++It) {
3335 OptSpecifier Opt =
3336 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore;
3337 GenerateArg(Consumer, OptSpecifier: Opt, Value: It->Path);
3338 }
3339
3340 // Note: Some paths that came from "-idirafter=xxyy" may have already been
3341 // generated as "-iwithprefix=xxyy". If that's the case, their position on
3342 // command line was such that this has no semantic impact on include paths.
3343 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It)
3344 GenerateArg(Consumer, OptSpecifier: OPT_idirafter, Value: It->Path);
3345 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It)
3346 GenerateArg(Consumer, OptSpecifier: OPT_iquote, Value: It->Path);
3347 for (; It < End && Matches(*It, {frontend::System}, false, std::nullopt);
3348 ++It)
3349 GenerateArg(Consumer, OptSpecifier: It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot,
3350 Value: It->Path);
3351 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It)
3352 GenerateArg(Consumer, OptSpecifier: OPT_iframework, Value: It->Path);
3353 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It)
3354 GenerateArg(Consumer, OptSpecifier: OPT_iframeworkwithsysroot, Value: It->Path);
3355
3356 // Add the paths for the various language specific isystem flags.
3357 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It)
3358 GenerateArg(Consumer, OptSpecifier: OPT_c_isystem, Value: It->Path);
3359 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It)
3360 GenerateArg(Consumer, OptSpecifier: OPT_cxx_isystem, Value: It->Path);
3361 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It)
3362 GenerateArg(Consumer, OptSpecifier: OPT_objc_isystem, Value: It->Path);
3363 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It)
3364 GenerateArg(Consumer, OptSpecifier: OPT_objcxx_isystem, Value: It->Path);
3365
3366 // Add the internal paths from a driver that detects standard include paths.
3367 // Note: Some paths that came from "-internal-isystem" arguments may have
3368 // already been generated as "-isystem". If that's the case, their position on
3369 // command line was such that this has no semantic impact on include paths.
3370 for (; It < End &&
3371 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true);
3372 ++It) {
3373 OptSpecifier Opt = It->Group == frontend::System
3374 ? OPT_internal_isystem
3375 : OPT_internal_externc_isystem;
3376 GenerateArg(Consumer, OptSpecifier: Opt, Value: It->Path);
3377 }
3378 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It)
3379 GenerateArg(Consumer, OptSpecifier: OPT_internal_iframework, Value: It->Path);
3380
3381 assert(It == End && "Unhandled HeaderSearchOption::Entry.");
3382
3383 // Add the path prefixes which are implicitly treated as being system headers.
3384 for (const auto &P : Opts.SystemHeaderPrefixes) {
3385 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix
3386 : OPT_no_system_header_prefix;
3387 GenerateArg(Consumer, OptSpecifier: Opt, Value: P.Prefix);
3388 }
3389
3390 for (const std::string &F : Opts.VFSOverlayFiles)
3391 GenerateArg(Consumer, OptSpecifier: OPT_ivfsoverlay, Value: F);
3392}
3393
3394static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args,
3395 DiagnosticsEngine &Diags,
3396 const std::string &WorkingDir) {
3397 unsigned NumErrorsBefore = Diags.getNumErrors();
3398
3399 HeaderSearchOptions *HeaderSearchOpts = &Opts;
3400
3401#define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \
3402 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
3403#include "clang/Driver/Options.inc"
3404#undef HEADER_SEARCH_OPTION_WITH_MARSHALLING
3405
3406 if (const Arg *A = Args.getLastArg(Ids: OPT_stdlib_EQ))
3407 Opts.UseLibcxx = (strcmp(s1: A->getValue(), s2: "libc++") == 0);
3408
3409 // Canonicalize -fmodules-cache-path before storing it.
3410 SmallString<128> P(Args.getLastArgValue(Id: OPT_fmodules_cache_path));
3411 if (!(P.empty() || llvm::sys::path::is_absolute(path: P))) {
3412 if (WorkingDir.empty())
3413 llvm::sys::fs::make_absolute(path&: P);
3414 else
3415 llvm::sys::fs::make_absolute(current_directory: WorkingDir, path&: P);
3416 }
3417 llvm::sys::path::remove_dots(path&: P);
3418 Opts.ModuleCachePath = std::string(P);
3419
3420 // Only the -fmodule-file=<name>=<file> form.
3421 for (const auto *A : Args.filtered(Ids: OPT_fmodule_file)) {
3422 StringRef Val = A->getValue();
3423 if (Val.contains(C: '=')) {
3424 auto Split = Val.split(Separator: '=');
3425 Opts.PrebuiltModuleFiles.insert_or_assign(
3426 k: std::string(Split.first), obj: std::string(Split.second));
3427 }
3428 }
3429 for (const auto *A : Args.filtered(Ids: OPT_fprebuilt_module_path))
3430 Opts.AddPrebuiltModulePath(Name: A->getValue());
3431
3432 for (const auto *A : Args.filtered(Ids: OPT_fmodules_ignore_macro)) {
3433 StringRef MacroDef = A->getValue();
3434 Opts.ModulesIgnoreMacros.insert(
3435 X: llvm::CachedHashString(MacroDef.split(Separator: '=').first));
3436 }
3437
3438 // Add -I... and -F... options in order.
3439 bool IsSysrootSpecified =
3440 Args.hasArg(Ids: OPT__sysroot_EQ) || Args.hasArg(Ids: OPT_isysroot);
3441
3442 // Expand a leading `=` to the sysroot if one was passed (and it's not a
3443 // framework flag).
3444 auto PrefixHeaderPath = [IsSysrootSpecified,
3445 &Opts](const llvm::opt::Arg *A,
3446 bool IsFramework = false) -> std::string {
3447 assert(A->getNumValues() && "Unexpected empty search path flag!");
3448 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') {
3449 SmallString<32> Buffer;
3450 llvm::sys::path::append(path&: Buffer, a: Opts.Sysroot,
3451 b: llvm::StringRef(A->getValue()).substr(Start: 1));
3452 return std::string(Buffer);
3453 }
3454 return A->getValue();
3455 };
3456
3457 for (const auto *A : Args.filtered(Ids: OPT_I, Ids: OPT_F)) {
3458 bool IsFramework = A->getOption().matches(ID: OPT_F);
3459 Opts.AddPath(Path: PrefixHeaderPath(A, IsFramework), Group: frontend::Angled,
3460 IsFramework, /*IgnoreSysroot=*/IgnoreSysRoot: true);
3461 }
3462
3463 // Add -iprefix/-iwithprefix/-iwithprefixbefore options.
3464 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
3465 for (const auto *A :
3466 Args.filtered(Ids: OPT_iprefix, Ids: OPT_iwithprefix, Ids: OPT_iwithprefixbefore)) {
3467 if (A->getOption().matches(ID: OPT_iprefix))
3468 Prefix = A->getValue();
3469 else if (A->getOption().matches(ID: OPT_iwithprefix))
3470 Opts.AddPath(Path: Prefix.str() + A->getValue(), Group: frontend::After, IsFramework: false, IgnoreSysRoot: true);
3471 else
3472 Opts.AddPath(Path: Prefix.str() + A->getValue(), Group: frontend::Angled, IsFramework: false, IgnoreSysRoot: true);
3473 }
3474
3475 for (const auto *A : Args.filtered(Ids: OPT_idirafter))
3476 Opts.AddPath(Path: PrefixHeaderPath(A), Group: frontend::After, IsFramework: false, IgnoreSysRoot: true);
3477 for (const auto *A : Args.filtered(Ids: OPT_iquote))
3478 Opts.AddPath(Path: PrefixHeaderPath(A), Group: frontend::Quoted, IsFramework: false, IgnoreSysRoot: true);
3479
3480 for (const auto *A : Args.filtered(Ids: OPT_isystem, Ids: OPT_iwithsysroot)) {
3481 if (A->getOption().matches(ID: OPT_iwithsysroot)) {
3482 Opts.AddPath(Path: A->getValue(), Group: frontend::System, IsFramework: false,
3483 /*IgnoreSysRoot=*/false);
3484 continue;
3485 }
3486 Opts.AddPath(Path: PrefixHeaderPath(A), Group: frontend::System, IsFramework: false, IgnoreSysRoot: true);
3487 }
3488 for (const auto *A : Args.filtered(Ids: OPT_iframework))
3489 Opts.AddPath(Path: A->getValue(), Group: frontend::System, IsFramework: true, IgnoreSysRoot: true);
3490 for (const auto *A : Args.filtered(Ids: OPT_iframeworkwithsysroot))
3491 Opts.AddPath(Path: A->getValue(), Group: frontend::System, /*IsFramework=*/true,
3492 /*IgnoreSysRoot=*/false);
3493
3494 // Add the paths for the various language specific isystem flags.
3495 for (const auto *A : Args.filtered(Ids: OPT_c_isystem))
3496 Opts.AddPath(Path: A->getValue(), Group: frontend::CSystem, IsFramework: false, IgnoreSysRoot: true);
3497 for (const auto *A : Args.filtered(Ids: OPT_cxx_isystem))
3498 Opts.AddPath(Path: A->getValue(), Group: frontend::CXXSystem, IsFramework: false, IgnoreSysRoot: true);
3499 for (const auto *A : Args.filtered(Ids: OPT_objc_isystem))
3500 Opts.AddPath(Path: A->getValue(), Group: frontend::ObjCSystem, IsFramework: false,IgnoreSysRoot: true);
3501 for (const auto *A : Args.filtered(Ids: OPT_objcxx_isystem))
3502 Opts.AddPath(Path: A->getValue(), Group: frontend::ObjCXXSystem, IsFramework: false, IgnoreSysRoot: true);
3503
3504 // Add the internal paths from a driver that detects standard include paths.
3505 for (const auto *A :
3506 Args.filtered(Ids: OPT_internal_isystem, Ids: OPT_internal_externc_isystem)) {
3507 frontend::IncludeDirGroup Group = frontend::System;
3508 if (A->getOption().matches(ID: OPT_internal_externc_isystem))
3509 Group = frontend::ExternCSystem;
3510 Opts.AddPath(Path: A->getValue(), Group, IsFramework: false, IgnoreSysRoot: true);
3511 }
3512 for (const auto *A : Args.filtered(Ids: OPT_internal_iframework))
3513 Opts.AddPath(Path: A->getValue(), Group: frontend::System, IsFramework: true, IgnoreSysRoot: true);
3514
3515 // Add the path prefixes which are implicitly treated as being system headers.
3516 for (const auto *A :
3517 Args.filtered(Ids: OPT_system_header_prefix, Ids: OPT_no_system_header_prefix))
3518 Opts.AddSystemHeaderPrefix(
3519 Prefix: A->getValue(), IsSystemHeader: A->getOption().matches(ID: OPT_system_header_prefix));
3520
3521 for (const auto *A : Args.filtered(Ids: OPT_ivfsoverlay, Ids: OPT_vfsoverlay))
3522 Opts.AddVFSOverlayFile(Name: A->getValue());
3523
3524 return Diags.getNumErrors() == NumErrorsBefore;
3525}
3526
3527static void GenerateAPINotesArgs(const APINotesOptions &Opts,
3528 ArgumentConsumer Consumer) {
3529 if (!Opts.SwiftVersion.empty())
3530 GenerateArg(Consumer, OptSpecifier: OPT_fapinotes_swift_version,
3531 Value: Opts.SwiftVersion.getAsString());
3532
3533 for (const auto &Path : Opts.ModuleSearchPaths)
3534 GenerateArg(Consumer, OptSpecifier: OPT_iapinotes_modules, Value: Path);
3535}
3536
3537static void ParseAPINotesArgs(APINotesOptions &Opts, ArgList &Args,
3538 DiagnosticsEngine &diags) {
3539 if (const Arg *A = Args.getLastArg(Ids: OPT_fapinotes_swift_version)) {
3540 if (Opts.SwiftVersion.tryParse(string: A->getValue()))
3541 diags.Report(DiagID: diag::err_drv_invalid_value)
3542 << A->getAsString(Args) << A->getValue();
3543 }
3544 for (const Arg *A : Args.filtered(Ids: OPT_iapinotes_modules))
3545 Opts.ModuleSearchPaths.push_back(x: A->getValue());
3546}
3547
3548static void GeneratePointerAuthArgs(const LangOptions &Opts,
3549 ArgumentConsumer Consumer) {
3550 if (Opts.PointerAuthIntrinsics)
3551 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_intrinsics);
3552 if (Opts.PointerAuthCalls)
3553 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_calls);
3554 if (Opts.PointerAuthReturns)
3555 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_returns);
3556 if (Opts.PointerAuthIndirectGotos)
3557 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_indirect_gotos);
3558 if (Opts.PointerAuthAuthTraps)
3559 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_auth_traps);
3560 if (Opts.PointerAuthVTPtrAddressDiscrimination)
3561 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_vtable_pointer_address_discrimination);
3562 if (Opts.PointerAuthVTPtrTypeDiscrimination)
3563 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_vtable_pointer_type_discrimination);
3564 if (Opts.PointerAuthTypeInfoVTPtrDiscrimination)
3565 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_type_info_vtable_pointer_discrimination);
3566 if (Opts.PointerAuthFunctionTypeDiscrimination)
3567 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_function_pointer_type_discrimination);
3568 if (Opts.PointerAuthInitFini)
3569 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_init_fini);
3570 if (Opts.PointerAuthInitFiniAddressDiscrimination)
3571 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_init_fini_address_discrimination);
3572 if (Opts.PointerAuthELFGOT)
3573 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_elf_got);
3574 if (Opts.AArch64JumpTableHardening)
3575 GenerateArg(Consumer, OptSpecifier: OPT_faarch64_jump_table_hardening);
3576}
3577
3578static void ParsePointerAuthArgs(LangOptions &Opts, ArgList &Args,
3579 DiagnosticsEngine &Diags) {
3580 Opts.PointerAuthIntrinsics = Args.hasArg(Ids: OPT_fptrauth_intrinsics);
3581 Opts.PointerAuthCalls = Args.hasArg(Ids: OPT_fptrauth_calls);
3582 Opts.PointerAuthReturns = Args.hasArg(Ids: OPT_fptrauth_returns);
3583 Opts.PointerAuthIndirectGotos = Args.hasArg(Ids: OPT_fptrauth_indirect_gotos);
3584 Opts.PointerAuthAuthTraps = Args.hasArg(Ids: OPT_fptrauth_auth_traps);
3585 Opts.PointerAuthVTPtrAddressDiscrimination =
3586 Args.hasArg(Ids: OPT_fptrauth_vtable_pointer_address_discrimination);
3587 Opts.PointerAuthVTPtrTypeDiscrimination =
3588 Args.hasArg(Ids: OPT_fptrauth_vtable_pointer_type_discrimination);
3589 Opts.PointerAuthTypeInfoVTPtrDiscrimination =
3590 Args.hasArg(Ids: OPT_fptrauth_type_info_vtable_pointer_discrimination);
3591 Opts.PointerAuthFunctionTypeDiscrimination =
3592 Args.hasArg(Ids: OPT_fptrauth_function_pointer_type_discrimination);
3593 Opts.PointerAuthInitFini = Args.hasArg(Ids: OPT_fptrauth_init_fini);
3594 Opts.PointerAuthInitFiniAddressDiscrimination =
3595 Args.hasArg(Ids: OPT_fptrauth_init_fini_address_discrimination);
3596 Opts.PointerAuthELFGOT = Args.hasArg(Ids: OPT_fptrauth_elf_got);
3597 Opts.AArch64JumpTableHardening =
3598 Args.hasArg(Ids: OPT_faarch64_jump_table_hardening);
3599}
3600
3601/// Check if input file kind and language standard are compatible.
3602static bool IsInputCompatibleWithStandard(InputKind IK,
3603 const LangStandard &S) {
3604 switch (IK.getLanguage()) {
3605 case Language::Unknown:
3606 case Language::LLVM_IR:
3607 case Language::CIR:
3608 llvm_unreachable("should not parse language flags for this input");
3609
3610 case Language::C:
3611 case Language::ObjC:
3612 return S.getLanguage() == Language::C;
3613
3614 case Language::OpenCL:
3615 return S.getLanguage() == Language::OpenCL ||
3616 S.getLanguage() == Language::OpenCLCXX;
3617
3618 case Language::OpenCLCXX:
3619 return S.getLanguage() == Language::OpenCLCXX;
3620
3621 case Language::CXX:
3622 case Language::ObjCXX:
3623 return S.getLanguage() == Language::CXX;
3624
3625 case Language::CUDA:
3626 // FIXME: What -std= values should be permitted for CUDA compilations?
3627 return S.getLanguage() == Language::CUDA ||
3628 S.getLanguage() == Language::CXX;
3629
3630 case Language::HIP:
3631 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP;
3632
3633 case Language::Asm:
3634 // Accept (and ignore) all -std= values.
3635 // FIXME: The -std= value is not ignored; it affects the tokenization
3636 // and preprocessing rules if we're preprocessing this asm input.
3637 return true;
3638
3639 case Language::HLSL:
3640 return S.getLanguage() == Language::HLSL;
3641 }
3642
3643 llvm_unreachable("unexpected input language");
3644}
3645
3646/// Get language name for given input kind.
3647static StringRef GetInputKindName(InputKind IK) {
3648 switch (IK.getLanguage()) {
3649 case Language::C:
3650 return "C";
3651 case Language::ObjC:
3652 return "Objective-C";
3653 case Language::CXX:
3654 return "C++";
3655 case Language::ObjCXX:
3656 return "Objective-C++";
3657 case Language::OpenCL:
3658 return "OpenCL";
3659 case Language::OpenCLCXX:
3660 return "C++ for OpenCL";
3661 case Language::CUDA:
3662 return "CUDA";
3663 case Language::HIP:
3664 return "HIP";
3665
3666 case Language::Asm:
3667 return "Asm";
3668 case Language::LLVM_IR:
3669 return "LLVM IR";
3670 case Language::CIR:
3671 return "Clang IR";
3672
3673 case Language::HLSL:
3674 return "HLSL";
3675
3676 case Language::Unknown:
3677 break;
3678 }
3679 llvm_unreachable("unknown input language");
3680}
3681
3682static StringRef getExceptionHandlingName(unsigned EHK) {
3683 switch (static_cast<LangOptions::ExceptionHandlingKind>(EHK)) {
3684 case LangOptions::ExceptionHandlingKind::None:
3685 return "none";
3686 case LangOptions::ExceptionHandlingKind::DwarfCFI:
3687 return "dwarf";
3688 case LangOptions::ExceptionHandlingKind::SjLj:
3689 return "sjlj";
3690 case LangOptions::ExceptionHandlingKind::WinEH:
3691 return "seh";
3692 case LangOptions::ExceptionHandlingKind::Wasm:
3693 return "wasm";
3694 }
3695
3696 llvm_unreachable("covered switch");
3697}
3698
3699void CompilerInvocationBase::GenerateLangArgs(const LangOptions &Opts,
3700 ArgumentConsumer Consumer,
3701 const llvm::Triple &T,
3702 InputKind IK) {
3703 if (IK.getFormat() == InputKind::Precompiled ||
3704 IK.getLanguage() == Language::LLVM_IR ||
3705 IK.getLanguage() == Language::CIR) {
3706 if (Opts.ObjCAutoRefCount)
3707 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_arc);
3708 if (Opts.PICLevel != 0)
3709 GenerateArg(Consumer, OptSpecifier: OPT_pic_level, Value: Twine(Opts.PICLevel));
3710 if (Opts.PIE)
3711 GenerateArg(Consumer, OptSpecifier: OPT_pic_is_pie);
3712 for (StringRef Sanitizer : serializeSanitizerKinds(S: Opts.Sanitize))
3713 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_EQ, Value: Sanitizer);
3714 if (Opts.ExceptionHandling) {
3715 GenerateArg(Consumer, OptSpecifier: OPT_exception_model,
3716 Value: getExceptionHandlingName(EHK: Opts.ExceptionHandling));
3717 }
3718
3719 return;
3720 }
3721
3722 OptSpecifier StdOpt;
3723 switch (Opts.LangStd) {
3724 case LangStandard::lang_opencl10:
3725 case LangStandard::lang_opencl11:
3726 case LangStandard::lang_opencl12:
3727 case LangStandard::lang_opencl20:
3728 case LangStandard::lang_opencl30:
3729 case LangStandard::lang_openclcpp10:
3730 case LangStandard::lang_openclcpp2021:
3731 StdOpt = OPT_cl_std_EQ;
3732 break;
3733 default:
3734 StdOpt = OPT_std_EQ;
3735 break;
3736 }
3737
3738 auto LangStandard = LangStandard::getLangStandardForKind(K: Opts.LangStd);
3739 GenerateArg(Consumer, OptSpecifier: StdOpt, Value: LangStandard.getName());
3740
3741 if (Opts.IncludeDefaultHeader)
3742 GenerateArg(Consumer, OptSpecifier: OPT_finclude_default_header);
3743 if (Opts.DeclareOpenCLBuiltins)
3744 GenerateArg(Consumer, OptSpecifier: OPT_fdeclare_opencl_builtins);
3745
3746 const LangOptions *LangOpts = &Opts;
3747
3748#define LANG_OPTION_WITH_MARSHALLING(...) \
3749 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
3750#include "clang/Driver/Options.inc"
3751#undef LANG_OPTION_WITH_MARSHALLING
3752
3753 // The '-fcf-protection=' option is generated by CodeGenOpts generator.
3754
3755 if (Opts.ObjC) {
3756 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_runtime_EQ, Value: Opts.ObjCRuntime.getAsString());
3757
3758 if (Opts.GC == LangOptions::GCOnly)
3759 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_gc_only);
3760 else if (Opts.GC == LangOptions::HybridGC)
3761 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_gc);
3762 else if (Opts.ObjCAutoRefCount == 1)
3763 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_arc);
3764
3765 if (Opts.ObjCWeakRuntime)
3766 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_runtime_has_weak);
3767
3768 if (Opts.ObjCWeak)
3769 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_weak);
3770
3771 if (Opts.ObjCSubscriptingLegacyRuntime)
3772 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_subscripting_legacy_runtime);
3773 }
3774
3775 if (Opts.GNUCVersion != 0) {
3776 unsigned Major = Opts.GNUCVersion / 100 / 100;
3777 unsigned Minor = (Opts.GNUCVersion / 100) % 100;
3778 unsigned Patch = Opts.GNUCVersion % 100;
3779 GenerateArg(Consumer, OptSpecifier: OPT_fgnuc_version_EQ,
3780 Value: Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch));
3781 }
3782
3783 if (Opts.IgnoreXCOFFVisibility)
3784 GenerateArg(Consumer, OptSpecifier: OPT_mignore_xcoff_visibility);
3785
3786 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) {
3787 GenerateArg(Consumer, OptSpecifier: OPT_ftrapv);
3788 GenerateArg(Consumer, OptSpecifier: OPT_ftrapv_handler, Value: Opts.OverflowHandler);
3789 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) {
3790 GenerateArg(Consumer, OptSpecifier: OPT_fwrapv);
3791 }
3792 if (Opts.PointerOverflowDefined)
3793 GenerateArg(Consumer, OptSpecifier: OPT_fwrapv_pointer);
3794
3795 if (Opts.MSCompatibilityVersion != 0) {
3796 unsigned Major = Opts.MSCompatibilityVersion / 10000000;
3797 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100;
3798 unsigned Subminor = Opts.MSCompatibilityVersion % 100000;
3799 GenerateArg(Consumer, OptSpecifier: OPT_fms_compatibility_version,
3800 Value: Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor));
3801 }
3802
3803 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) ||
3804 T.isOSzOS()) {
3805 if (!Opts.Trigraphs)
3806 GenerateArg(Consumer, OptSpecifier: OPT_fno_trigraphs);
3807 } else {
3808 if (Opts.Trigraphs)
3809 GenerateArg(Consumer, OptSpecifier: OPT_ftrigraphs);
3810 }
3811
3812 if (T.isOSzOS() && !Opts.ZOSExt)
3813 GenerateArg(Consumer, OptSpecifier: OPT_fno_zos_extensions);
3814 else if (Opts.ZOSExt)
3815 GenerateArg(Consumer, OptSpecifier: OPT_fzos_extensions);
3816
3817 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200))
3818 GenerateArg(Consumer, OptSpecifier: OPT_fblocks);
3819
3820 if (Opts.ConvergentFunctions)
3821 GenerateArg(Consumer, OptSpecifier: OPT_fconvergent_functions);
3822 else
3823 GenerateArg(Consumer, OptSpecifier: OPT_fno_convergent_functions);
3824
3825 if (Opts.NoBuiltin && !Opts.Freestanding)
3826 GenerateArg(Consumer, OptSpecifier: OPT_fno_builtin);
3827
3828 if (!Opts.NoBuiltin)
3829 for (const auto &Func : Opts.NoBuiltinFuncs)
3830 GenerateArg(Consumer, OptSpecifier: OPT_fno_builtin_, Value: Func);
3831
3832 if (Opts.LongDoubleSize == 128)
3833 GenerateArg(Consumer, OptSpecifier: OPT_mlong_double_128);
3834 else if (Opts.LongDoubleSize == 64)
3835 GenerateArg(Consumer, OptSpecifier: OPT_mlong_double_64);
3836 else if (Opts.LongDoubleSize == 80)
3837 GenerateArg(Consumer, OptSpecifier: OPT_mlong_double_80);
3838
3839 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='.
3840
3841 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or
3842 // '-fopenmp-targets='.
3843 if (Opts.OpenMP && !Opts.OpenMPSimd) {
3844 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp);
3845
3846 if (Opts.OpenMP != 51)
3847 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_version_EQ, Value: Twine(Opts.OpenMP));
3848
3849 if (!Opts.OpenMPUseTLS)
3850 GenerateArg(Consumer, OptSpecifier: OPT_fnoopenmp_use_tls);
3851
3852 if (Opts.OpenMPIsTargetDevice)
3853 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_is_target_device);
3854
3855 if (Opts.OpenMPIRBuilder)
3856 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_enable_irbuilder);
3857 }
3858
3859 if (Opts.OpenMPSimd) {
3860 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_simd);
3861
3862 if (Opts.OpenMP != 51)
3863 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_version_EQ, Value: Twine(Opts.OpenMP));
3864 }
3865
3866 if (Opts.OpenMPThreadSubscription)
3867 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_assume_threads_oversubscription);
3868
3869 if (Opts.OpenMPTeamSubscription)
3870 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_assume_teams_oversubscription);
3871
3872 if (Opts.OpenMPTargetDebug != 0)
3873 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_target_debug_EQ,
3874 Value: Twine(Opts.OpenMPTargetDebug));
3875
3876 if (Opts.OpenMPCUDANumSMs != 0)
3877 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_cuda_number_of_sm_EQ,
3878 Value: Twine(Opts.OpenMPCUDANumSMs));
3879
3880 if (Opts.OpenMPCUDABlocksPerSM != 0)
3881 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_cuda_blocks_per_sm_EQ,
3882 Value: Twine(Opts.OpenMPCUDABlocksPerSM));
3883
3884 if (Opts.OpenMPCUDAReductionBufNum != 1024)
3885 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_cuda_teams_reduction_recs_num_EQ,
3886 Value: Twine(Opts.OpenMPCUDAReductionBufNum));
3887
3888 if (!Opts.OMPTargetTriples.empty()) {
3889 std::string Targets;
3890 llvm::raw_string_ostream OS(Targets);
3891 llvm::interleave(
3892 c: Opts.OMPTargetTriples, os&: OS,
3893 each_fn: [&OS](const llvm::Triple &T) { OS << T.str(); }, separator: ",");
3894 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_targets_EQ, Value: Targets);
3895 }
3896
3897 if (!Opts.OMPHostIRFile.empty())
3898 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_host_ir_file_path, Value: Opts.OMPHostIRFile);
3899
3900 if (Opts.OpenMPCUDAMode)
3901 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_cuda_mode);
3902
3903 if (Opts.OpenACC) {
3904 GenerateArg(Consumer, OptSpecifier: OPT_fopenacc);
3905 if (!Opts.OpenACCMacroOverride.empty())
3906 GenerateArg(Consumer, OptSpecifier: OPT_openacc_macro_override,
3907 Value: Opts.OpenACCMacroOverride);
3908 }
3909
3910 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are
3911 // generated from CodeGenOptions.
3912
3913 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast)
3914 GenerateArg(Consumer, OptSpecifier: OPT_ffp_contract, Value: "fast");
3915 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On)
3916 GenerateArg(Consumer, OptSpecifier: OPT_ffp_contract, Value: "on");
3917 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off)
3918 GenerateArg(Consumer, OptSpecifier: OPT_ffp_contract, Value: "off");
3919 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas)
3920 GenerateArg(Consumer, OptSpecifier: OPT_ffp_contract, Value: "fast-honor-pragmas");
3921
3922 for (StringRef Sanitizer : serializeSanitizerKinds(S: Opts.Sanitize))
3923 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_EQ, Value: Sanitizer);
3924
3925 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'.
3926 for (const std::string &F : Opts.NoSanitizeFiles)
3927 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_ignorelist_EQ, Value: F);
3928
3929 switch (Opts.getClangABICompat()) {
3930 case LangOptions::ClangABI::Ver3_8:
3931 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "3.8");
3932 break;
3933 case LangOptions::ClangABI::Ver4:
3934 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "4.0");
3935 break;
3936 case LangOptions::ClangABI::Ver6:
3937 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "6.0");
3938 break;
3939 case LangOptions::ClangABI::Ver7:
3940 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "7.0");
3941 break;
3942 case LangOptions::ClangABI::Ver9:
3943 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "9.0");
3944 break;
3945 case LangOptions::ClangABI::Ver11:
3946 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "11.0");
3947 break;
3948 case LangOptions::ClangABI::Ver12:
3949 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "12.0");
3950 break;
3951 case LangOptions::ClangABI::Ver14:
3952 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "14.0");
3953 break;
3954 case LangOptions::ClangABI::Ver15:
3955 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "15.0");
3956 break;
3957 case LangOptions::ClangABI::Ver17:
3958 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "17.0");
3959 break;
3960 case LangOptions::ClangABI::Ver18:
3961 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "18.0");
3962 break;
3963 case LangOptions::ClangABI::Ver19:
3964 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "19.0");
3965 break;
3966 case LangOptions::ClangABI::Ver20:
3967 GenerateArg(Consumer, OptSpecifier: OPT_fclang_abi_compat_EQ, Value: "20.0");
3968 break;
3969 case LangOptions::ClangABI::Latest:
3970 break;
3971 }
3972
3973 if (Opts.getSignReturnAddressScope() ==
3974 LangOptions::SignReturnAddressScopeKind::All)
3975 GenerateArg(Consumer, OptSpecifier: OPT_msign_return_address_EQ, Value: "all");
3976 else if (Opts.getSignReturnAddressScope() ==
3977 LangOptions::SignReturnAddressScopeKind::NonLeaf)
3978 GenerateArg(Consumer, OptSpecifier: OPT_msign_return_address_EQ, Value: "non-leaf");
3979
3980 if (Opts.getSignReturnAddressKey() ==
3981 LangOptions::SignReturnAddressKeyKind::BKey)
3982 GenerateArg(Consumer, OptSpecifier: OPT_msign_return_address_key_EQ, Value: "b_key");
3983
3984 if (Opts.CXXABI)
3985 GenerateArg(Consumer, OptSpecifier: OPT_fcxx_abi_EQ,
3986 Value: TargetCXXABI::getSpelling(ABIKind: *Opts.CXXABI));
3987
3988 if (Opts.RelativeCXXABIVTables)
3989 GenerateArg(Consumer, OptSpecifier: OPT_fexperimental_relative_cxx_abi_vtables);
3990 else
3991 GenerateArg(Consumer, OptSpecifier: OPT_fno_experimental_relative_cxx_abi_vtables);
3992
3993 if (Opts.UseTargetPathSeparator)
3994 GenerateArg(Consumer, OptSpecifier: OPT_ffile_reproducible);
3995 else
3996 GenerateArg(Consumer, OptSpecifier: OPT_fno_file_reproducible);
3997
3998 for (const auto &MP : Opts.MacroPrefixMap)
3999 GenerateArg(Consumer, OptSpecifier: OPT_fmacro_prefix_map_EQ, Value: MP.first + "=" + MP.second);
4000
4001 if (!Opts.RandstructSeed.empty())
4002 GenerateArg(Consumer, OptSpecifier: OPT_frandomize_layout_seed_EQ, Value: Opts.RandstructSeed);
4003}
4004
4005bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args,
4006 InputKind IK, const llvm::Triple &T,
4007 std::vector<std::string> &Includes,
4008 DiagnosticsEngine &Diags) {
4009 unsigned NumErrorsBefore = Diags.getNumErrors();
4010
4011 if (IK.getFormat() == InputKind::Precompiled ||
4012 IK.getLanguage() == Language::LLVM_IR ||
4013 IK.getLanguage() == Language::CIR) {
4014 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the
4015 // PassManager in BackendUtil.cpp. They need to be initialized no matter
4016 // what the input type is.
4017 if (Args.hasArg(Ids: OPT_fobjc_arc))
4018 Opts.ObjCAutoRefCount = 1;
4019 // PICLevel and PIELevel are needed during code generation and this should
4020 // be set regardless of the input type.
4021 Opts.PICLevel = getLastArgIntValue(Args, Id: OPT_pic_level, Default: 0, Diags);
4022 Opts.PIE = Args.hasArg(Ids: OPT_pic_is_pie);
4023 parseSanitizerKinds(FlagName: "-fsanitize=", Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_EQ),
4024 Diags, S&: Opts.Sanitize);
4025
4026 if (const Arg *A = Args.getLastArg(Ids: options::OPT_exception_model)) {
4027 std::optional<LangOptions::ExceptionHandlingKind> EMValue =
4028 llvm::StringSwitch<std::optional<LangOptions::ExceptionHandlingKind>>(
4029 A->getValue())
4030 .Case(S: "dwarf", Value: LangOptions::ExceptionHandlingKind::DwarfCFI)
4031 .Case(S: "sjlj", Value: LangOptions::ExceptionHandlingKind::SjLj)
4032 .Case(S: "seh", Value: LangOptions::ExceptionHandlingKind::WinEH)
4033 .Case(S: "wasm", Value: LangOptions::ExceptionHandlingKind::Wasm)
4034 .Case(S: "none", Value: LangOptions::ExceptionHandlingKind::None)
4035 .Default(Value: std::nullopt);
4036 if (EMValue) {
4037 Opts.ExceptionHandling = static_cast<unsigned>(*EMValue);
4038 } else {
4039 Diags.Report(DiagID: diag::err_drv_invalid_value)
4040 << A->getAsString(Args) << A->getValue();
4041 }
4042 }
4043
4044 return Diags.getNumErrors() == NumErrorsBefore;
4045 }
4046
4047 // Other LangOpts are only initialized when the input is not AST or LLVM IR.
4048 // FIXME: Should we really be parsing this for an Language::Asm input?
4049
4050 // FIXME: Cleanup per-file based stuff.
4051 LangStandard::Kind LangStd = LangStandard::lang_unspecified;
4052 if (const Arg *A = Args.getLastArg(Ids: OPT_std_EQ)) {
4053 LangStd = LangStandard::getLangKind(Name: A->getValue());
4054 if (LangStd == LangStandard::lang_unspecified) {
4055 Diags.Report(DiagID: diag::err_drv_invalid_value)
4056 << A->getAsString(Args) << A->getValue();
4057 // Report supported standards with short description.
4058 for (unsigned KindValue = 0;
4059 KindValue != LangStandard::lang_unspecified;
4060 ++KindValue) {
4061 const LangStandard &Std = LangStandard::getLangStandardForKind(
4062 K: static_cast<LangStandard::Kind>(KindValue));
4063 if (IsInputCompatibleWithStandard(IK, S: Std)) {
4064 auto Diag = Diags.Report(DiagID: diag::note_drv_use_standard);
4065 Diag << Std.getName() << Std.getDescription();
4066 unsigned NumAliases = 0;
4067#define LANGSTANDARD(id, name, lang, desc, features)
4068#define LANGSTANDARD_ALIAS(id, alias) \
4069 if (KindValue == LangStandard::lang_##id) ++NumAliases;
4070#define LANGSTANDARD_ALIAS_DEPR(id, alias)
4071#include "clang/Basic/LangStandards.def"
4072 Diag << NumAliases;
4073#define LANGSTANDARD(id, name, lang, desc, features)
4074#define LANGSTANDARD_ALIAS(id, alias) \
4075 if (KindValue == LangStandard::lang_##id) Diag << alias;
4076#define LANGSTANDARD_ALIAS_DEPR(id, alias)
4077#include "clang/Basic/LangStandards.def"
4078 }
4079 }
4080 } else {
4081 // Valid standard, check to make sure language and standard are
4082 // compatible.
4083 const LangStandard &Std = LangStandard::getLangStandardForKind(K: LangStd);
4084 if (!IsInputCompatibleWithStandard(IK, S: Std)) {
4085 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
4086 << A->getAsString(Args) << GetInputKindName(IK);
4087 }
4088 }
4089 }
4090
4091 // -cl-std only applies for OpenCL language standards.
4092 // Override the -std option in this case.
4093 if (const Arg *A = Args.getLastArg(Ids: OPT_cl_std_EQ)) {
4094 LangStandard::Kind OpenCLLangStd
4095 = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
4096 .Cases(S0: "cl", S1: "CL", Value: LangStandard::lang_opencl10)
4097 .Cases(S0: "cl1.0", S1: "CL1.0", Value: LangStandard::lang_opencl10)
4098 .Cases(S0: "cl1.1", S1: "CL1.1", Value: LangStandard::lang_opencl11)
4099 .Cases(S0: "cl1.2", S1: "CL1.2", Value: LangStandard::lang_opencl12)
4100 .Cases(S0: "cl2.0", S1: "CL2.0", Value: LangStandard::lang_opencl20)
4101 .Cases(S0: "cl3.0", S1: "CL3.0", Value: LangStandard::lang_opencl30)
4102 .Cases(S0: "clc++", S1: "CLC++", Value: LangStandard::lang_openclcpp10)
4103 .Cases(S0: "clc++1.0", S1: "CLC++1.0", Value: LangStandard::lang_openclcpp10)
4104 .Cases(S0: "clc++2021", S1: "CLC++2021", Value: LangStandard::lang_openclcpp2021)
4105 .Default(Value: LangStandard::lang_unspecified);
4106
4107 if (OpenCLLangStd == LangStandard::lang_unspecified) {
4108 Diags.Report(DiagID: diag::err_drv_invalid_value)
4109 << A->getAsString(Args) << A->getValue();
4110 }
4111 else
4112 LangStd = OpenCLLangStd;
4113 }
4114
4115 // These need to be parsed now. They are used to set OpenCL defaults.
4116 Opts.IncludeDefaultHeader = Args.hasArg(Ids: OPT_finclude_default_header);
4117 Opts.DeclareOpenCLBuiltins = Args.hasArg(Ids: OPT_fdeclare_opencl_builtins);
4118
4119 LangOptions::setLangDefaults(Opts, Lang: IK.getLanguage(), T, Includes, LangStd);
4120
4121 // The key paths of codegen options defined in Options.td start with
4122 // "LangOpts->". Let's provide the expected variable name and type.
4123 LangOptions *LangOpts = &Opts;
4124
4125#define LANG_OPTION_WITH_MARSHALLING(...) \
4126 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
4127#include "clang/Driver/Options.inc"
4128#undef LANG_OPTION_WITH_MARSHALLING
4129
4130 if (const Arg *A = Args.getLastArg(Ids: OPT_fcf_protection_EQ)) {
4131 StringRef Name = A->getValue();
4132 if (Name == "full") {
4133 Opts.CFProtectionBranch = 1;
4134 Opts.CFProtectionReturn = 1;
4135 } else if (Name == "branch") {
4136 Opts.CFProtectionBranch = 1;
4137 } else if (Name == "return") {
4138 Opts.CFProtectionReturn = 1;
4139 }
4140 }
4141
4142 if (Opts.CFProtectionBranch) {
4143 if (const Arg *A = Args.getLastArg(Ids: OPT_mcf_branch_label_scheme_EQ)) {
4144 const auto Scheme =
4145 llvm::StringSwitch<CFBranchLabelSchemeKind>(A->getValue())
4146#define CF_BRANCH_LABEL_SCHEME(Kind, FlagVal) \
4147 .Case(#FlagVal, CFBranchLabelSchemeKind::Kind)
4148#include "clang/Basic/CFProtectionOptions.def"
4149 .Default(Value: CFBranchLabelSchemeKind::Default);
4150 Opts.setCFBranchLabelScheme(Scheme);
4151 }
4152 }
4153
4154 if ((Args.hasArg(Ids: OPT_fsycl_is_device) || Args.hasArg(Ids: OPT_fsycl_is_host)) &&
4155 !Args.hasArg(Ids: OPT_sycl_std_EQ)) {
4156 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to
4157 // provide -sycl-std=, we want to default it to whatever the default SYCL
4158 // version is. I could not find a way to express this with the options
4159 // tablegen because we still want this value to be SYCL_None when the user
4160 // is not in device or host mode.
4161 Opts.setSYCLVersion(LangOptions::SYCL_Default);
4162 }
4163
4164 if (Opts.ObjC) {
4165 if (Arg *arg = Args.getLastArg(Ids: OPT_fobjc_runtime_EQ)) {
4166 StringRef value = arg->getValue();
4167 if (Opts.ObjCRuntime.tryParse(input: value))
4168 Diags.Report(DiagID: diag::err_drv_unknown_objc_runtime) << value;
4169 }
4170
4171 if (Args.hasArg(Ids: OPT_fobjc_gc_only))
4172 Opts.setGC(LangOptions::GCOnly);
4173 else if (Args.hasArg(Ids: OPT_fobjc_gc))
4174 Opts.setGC(LangOptions::HybridGC);
4175 else if (Args.hasArg(Ids: OPT_fobjc_arc)) {
4176 Opts.ObjCAutoRefCount = 1;
4177 if (!Opts.ObjCRuntime.allowsARC())
4178 Diags.Report(DiagID: diag::err_arc_unsupported_on_runtime);
4179 }
4180
4181 // ObjCWeakRuntime tracks whether the runtime supports __weak, not
4182 // whether the feature is actually enabled. This is predominantly
4183 // determined by -fobjc-runtime, but we allow it to be overridden
4184 // from the command line for testing purposes.
4185 if (Args.hasArg(Ids: OPT_fobjc_runtime_has_weak))
4186 Opts.ObjCWeakRuntime = 1;
4187 else
4188 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak();
4189
4190 // ObjCWeak determines whether __weak is actually enabled.
4191 // Note that we allow -fno-objc-weak to disable this even in ARC mode.
4192 if (auto weakArg = Args.getLastArg(Ids: OPT_fobjc_weak, Ids: OPT_fno_objc_weak)) {
4193 if (!weakArg->getOption().matches(ID: OPT_fobjc_weak)) {
4194 assert(!Opts.ObjCWeak);
4195 } else if (Opts.getGC() != LangOptions::NonGC) {
4196 Diags.Report(DiagID: diag::err_objc_weak_with_gc);
4197 } else if (!Opts.ObjCWeakRuntime) {
4198 Diags.Report(DiagID: diag::err_objc_weak_unsupported);
4199 } else {
4200 Opts.ObjCWeak = 1;
4201 }
4202 } else if (Opts.ObjCAutoRefCount) {
4203 Opts.ObjCWeak = Opts.ObjCWeakRuntime;
4204 }
4205
4206 if (Args.hasArg(Ids: OPT_fobjc_subscripting_legacy_runtime))
4207 Opts.ObjCSubscriptingLegacyRuntime =
4208 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX);
4209 }
4210
4211 if (Arg *A = Args.getLastArg(Ids: options::OPT_fgnuc_version_EQ)) {
4212 // Check that the version has 1 to 3 components and the minor and patch
4213 // versions fit in two decimal digits.
4214 VersionTuple GNUCVer;
4215 bool Invalid = GNUCVer.tryParse(string: A->getValue());
4216 unsigned Major = GNUCVer.getMajor();
4217 unsigned Minor = GNUCVer.getMinor().value_or(u: 0);
4218 unsigned Patch = GNUCVer.getSubminor().value_or(u: 0);
4219 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) {
4220 Diags.Report(DiagID: diag::err_drv_invalid_value)
4221 << A->getAsString(Args) << A->getValue();
4222 }
4223 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch;
4224 }
4225
4226 if (T.isOSAIX() && (Args.hasArg(Ids: OPT_mignore_xcoff_visibility)))
4227 Opts.IgnoreXCOFFVisibility = 1;
4228
4229 if (Args.hasArg(Ids: OPT_ftrapv)) {
4230 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
4231 // Set the handler, if one is specified.
4232 Opts.OverflowHandler =
4233 std::string(Args.getLastArgValue(Id: OPT_ftrapv_handler));
4234 }
4235 else if (Args.hasArg(Ids: OPT_fwrapv))
4236 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
4237 if (Args.hasArg(Ids: OPT_fwrapv_pointer))
4238 Opts.PointerOverflowDefined = true;
4239
4240 Opts.MSCompatibilityVersion = 0;
4241 if (const Arg *A = Args.getLastArg(Ids: OPT_fms_compatibility_version)) {
4242 VersionTuple VT;
4243 if (VT.tryParse(string: A->getValue()))
4244 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args)
4245 << A->getValue();
4246 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 +
4247 VT.getMinor().value_or(u: 0) * 100000 +
4248 VT.getSubminor().value_or(u: 0);
4249 }
4250
4251 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs
4252 // is specified, or -std is set to a conforming mode.
4253 // Trigraphs are disabled by default in C++17 and C23 onwards.
4254 // For z/OS, trigraphs are enabled by default (without regard to the above).
4255 Opts.Trigraphs =
4256 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) ||
4257 T.isOSzOS();
4258 Opts.Trigraphs =
4259 Args.hasFlag(Pos: OPT_ftrigraphs, Neg: OPT_fno_trigraphs, Default: Opts.Trigraphs);
4260
4261 Opts.ZOSExt =
4262 Args.hasFlag(Pos: OPT_fzos_extensions, Neg: OPT_fno_zos_extensions, Default: T.isOSzOS());
4263
4264 Opts.Blocks = Args.hasArg(Ids: OPT_fblocks) || (Opts.OpenCL
4265 && Opts.OpenCLVersion == 200);
4266
4267 bool HasConvergentOperations = Opts.isTargetDevice() || Opts.OpenCL ||
4268 Opts.HLSL || T.isAMDGPU() || T.isNVPTX();
4269 Opts.ConvergentFunctions =
4270 Args.hasFlag(Pos: OPT_fconvergent_functions, Neg: OPT_fno_convergent_functions,
4271 Default: HasConvergentOperations);
4272
4273 Opts.NoBuiltin = Args.hasArg(Ids: OPT_fno_builtin) || Opts.Freestanding;
4274 if (!Opts.NoBuiltin)
4275 getAllNoBuiltinFuncValues(Args, Funcs&: Opts.NoBuiltinFuncs);
4276 if (Arg *A = Args.getLastArg(Ids: options::OPT_LongDouble_Group)) {
4277 if (A->getOption().matches(ID: options::OPT_mlong_double_64))
4278 Opts.LongDoubleSize = 64;
4279 else if (A->getOption().matches(ID: options::OPT_mlong_double_80))
4280 Opts.LongDoubleSize = 80;
4281 else if (A->getOption().matches(ID: options::OPT_mlong_double_128))
4282 Opts.LongDoubleSize = 128;
4283 else
4284 Opts.LongDoubleSize = 0;
4285 }
4286 if (Opts.FastRelaxedMath || Opts.CLUnsafeMath)
4287 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast);
4288
4289 llvm::sort(C&: Opts.ModuleFeatures);
4290
4291 // -mrtd option
4292 if (Arg *A = Args.getLastArg(Ids: OPT_mrtd)) {
4293 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None)
4294 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
4295 << A->getSpelling() << "-fdefault-calling-conv";
4296 else {
4297 switch (T.getArch()) {
4298 case llvm::Triple::x86:
4299 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall);
4300 break;
4301 case llvm::Triple::m68k:
4302 Opts.setDefaultCallingConv(LangOptions::DCC_RtdCall);
4303 break;
4304 default:
4305 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
4306 << A->getSpelling() << T.getTriple();
4307 }
4308 }
4309 }
4310
4311 // Check if -fopenmp is specified and set default version to 5.1.
4312 Opts.OpenMP = Args.hasArg(Ids: OPT_fopenmp) ? 51 : 0;
4313 // Check if -fopenmp-simd is specified.
4314 bool IsSimdSpecified =
4315 Args.hasFlag(Pos: options::OPT_fopenmp_simd, Neg: options::OPT_fno_openmp_simd,
4316 /*Default=*/false);
4317 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified;
4318 Opts.OpenMPUseTLS =
4319 Opts.OpenMP && !Args.hasArg(Ids: options::OPT_fnoopenmp_use_tls);
4320 Opts.OpenMPIsTargetDevice =
4321 Opts.OpenMP && Args.hasArg(Ids: options::OPT_fopenmp_is_target_device);
4322 Opts.OpenMPIRBuilder =
4323 Opts.OpenMP && Args.hasArg(Ids: options::OPT_fopenmp_enable_irbuilder);
4324 bool IsTargetSpecified =
4325 Opts.OpenMPIsTargetDevice || Args.hasArg(Ids: options::OPT_fopenmp_targets_EQ);
4326
4327 if (Opts.OpenMP || Opts.OpenMPSimd) {
4328 if (int Version = getLastArgIntValue(
4329 Args, Id: OPT_fopenmp_version_EQ,
4330 Default: (IsSimdSpecified || IsTargetSpecified) ? 51 : Opts.OpenMP, Diags))
4331 Opts.OpenMP = Version;
4332 // Provide diagnostic when a given target is not expected to be an OpenMP
4333 // device or host.
4334 if (!Opts.OpenMPIsTargetDevice) {
4335 switch (T.getArch()) {
4336 default:
4337 break;
4338 // Add unsupported host targets here:
4339 case llvm::Triple::nvptx:
4340 case llvm::Triple::nvptx64:
4341 Diags.Report(DiagID: diag::err_drv_omp_host_target_not_supported) << T.str();
4342 break;
4343 }
4344 }
4345 }
4346
4347 // Set the flag to prevent the implementation from emitting device exception
4348 // handling code for those requiring so.
4349 if ((Opts.OpenMPIsTargetDevice && (T.isNVPTX() || T.isAMDGCN())) ||
4350 Opts.OpenCLCPlusPlus) {
4351
4352 Opts.Exceptions = 0;
4353 Opts.CXXExceptions = 0;
4354 }
4355 if (Opts.OpenMPIsTargetDevice && T.isNVPTX()) {
4356 Opts.OpenMPCUDANumSMs =
4357 getLastArgIntValue(Args, Id: options::OPT_fopenmp_cuda_number_of_sm_EQ,
4358 Default: Opts.OpenMPCUDANumSMs, Diags);
4359 Opts.OpenMPCUDABlocksPerSM =
4360 getLastArgIntValue(Args, Id: options::OPT_fopenmp_cuda_blocks_per_sm_EQ,
4361 Default: Opts.OpenMPCUDABlocksPerSM, Diags);
4362 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue(
4363 Args, Id: options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ,
4364 Default: Opts.OpenMPCUDAReductionBufNum, Diags);
4365 }
4366
4367 // Set the value of the debugging flag used in the new offloading device RTL.
4368 // Set either by a specific value or to a default if not specified.
4369 if (Opts.OpenMPIsTargetDevice && (Args.hasArg(Ids: OPT_fopenmp_target_debug) ||
4370 Args.hasArg(Ids: OPT_fopenmp_target_debug_EQ))) {
4371 Opts.OpenMPTargetDebug = getLastArgIntValue(
4372 Args, Id: OPT_fopenmp_target_debug_EQ, Default: Opts.OpenMPTargetDebug, Diags);
4373 if (!Opts.OpenMPTargetDebug && Args.hasArg(Ids: OPT_fopenmp_target_debug))
4374 Opts.OpenMPTargetDebug = 1;
4375 }
4376
4377 if (Opts.OpenMPIsTargetDevice) {
4378 if (Args.hasArg(Ids: OPT_fopenmp_assume_teams_oversubscription))
4379 Opts.OpenMPTeamSubscription = true;
4380 if (Args.hasArg(Ids: OPT_fopenmp_assume_threads_oversubscription))
4381 Opts.OpenMPThreadSubscription = true;
4382 }
4383
4384 // Get the OpenMP target triples if any.
4385 if (Arg *A = Args.getLastArg(Ids: options::OPT_fopenmp_targets_EQ)) {
4386 enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit };
4387 auto getArchPtrSize = [](const llvm::Triple &T) {
4388 if (T.isArch16Bit())
4389 return Arch16Bit;
4390 if (T.isArch32Bit())
4391 return Arch32Bit;
4392 assert(T.isArch64Bit() && "Expected 64-bit architecture");
4393 return Arch64Bit;
4394 };
4395
4396 for (unsigned i = 0; i < A->getNumValues(); ++i) {
4397 llvm::Triple TT(A->getValue(N: i));
4398
4399 if (TT.getArch() == llvm::Triple::UnknownArch ||
4400 !(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() ||
4401 TT.getArch() == llvm::Triple::spirv64 ||
4402 TT.getArch() == llvm::Triple::systemz ||
4403 TT.getArch() == llvm::Triple::loongarch64 ||
4404 TT.getArch() == llvm::Triple::nvptx ||
4405 TT.getArch() == llvm::Triple::nvptx64 || TT.isAMDGCN() ||
4406 TT.getArch() == llvm::Triple::x86 ||
4407 TT.getArch() == llvm::Triple::x86_64))
4408 Diags.Report(DiagID: diag::err_drv_invalid_omp_target) << A->getValue(N: i);
4409 else if (getArchPtrSize(T) != getArchPtrSize(TT))
4410 Diags.Report(DiagID: diag::err_drv_incompatible_omp_arch)
4411 << A->getValue(N: i) << T.str();
4412 else
4413 Opts.OMPTargetTriples.push_back(x: TT);
4414 }
4415 }
4416
4417 // Get OpenMP host file path if any and report if a non existent file is
4418 // found
4419 if (Arg *A = Args.getLastArg(Ids: options::OPT_fopenmp_host_ir_file_path)) {
4420 Opts.OMPHostIRFile = A->getValue();
4421 if (!llvm::sys::fs::exists(Path: Opts.OMPHostIRFile))
4422 Diags.Report(DiagID: diag::err_drv_omp_host_ir_file_not_found)
4423 << Opts.OMPHostIRFile;
4424 }
4425
4426 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options
4427 Opts.OpenMPCUDAMode = Opts.OpenMPIsTargetDevice &&
4428 (T.isNVPTX() || T.isAMDGCN()) &&
4429 Args.hasArg(Ids: options::OPT_fopenmp_cuda_mode);
4430
4431 // OpenACC Configuration.
4432 if (Args.hasArg(Ids: options::OPT_fopenacc)) {
4433 Opts.OpenACC = true;
4434
4435 if (Arg *A = Args.getLastArg(Ids: options::OPT_openacc_macro_override))
4436 Opts.OpenACCMacroOverride = A->getValue();
4437 }
4438
4439 // FIXME: Eliminate this dependency.
4440 unsigned Opt = getOptimizationLevel(Args, IK, Diags),
4441 OptSize = getOptimizationLevelSize(Args);
4442 Opts.Optimize = Opt != 0;
4443 Opts.OptimizeSize = OptSize != 0;
4444
4445 // This is the __NO_INLINE__ define, which just depends on things like the
4446 // optimization level and -fno-inline, not actually whether the backend has
4447 // inlining enabled.
4448 Opts.NoInlineDefine = !Opts.Optimize;
4449 if (Arg *InlineArg = Args.getLastArg(
4450 Ids: options::OPT_finline_functions, Ids: options::OPT_finline_hint_functions,
4451 Ids: options::OPT_fno_inline_functions, Ids: options::OPT_fno_inline))
4452 if (InlineArg->getOption().matches(ID: options::OPT_fno_inline))
4453 Opts.NoInlineDefine = true;
4454
4455 if (Arg *A = Args.getLastArg(Ids: OPT_ffp_contract)) {
4456 StringRef Val = A->getValue();
4457 if (Val == "fast")
4458 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast);
4459 else if (Val == "on")
4460 Opts.setDefaultFPContractMode(LangOptions::FPM_On);
4461 else if (Val == "off")
4462 Opts.setDefaultFPContractMode(LangOptions::FPM_Off);
4463 else if (Val == "fast-honor-pragmas")
4464 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas);
4465 else
4466 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
4467 }
4468
4469 if (auto *A =
4470 Args.getLastArg(Ids: OPT_fsanitize_undefined_ignore_overflow_pattern_EQ)) {
4471 for (int i = 0, n = A->getNumValues(); i != n; ++i) {
4472 Opts.OverflowPatternExclusionMask |=
4473 llvm::StringSwitch<unsigned>(A->getValue(N: i))
4474 .Case(S: "none", Value: LangOptionsBase::None)
4475 .Case(S: "all", Value: LangOptionsBase::All)
4476 .Case(S: "add-unsigned-overflow-test",
4477 Value: LangOptionsBase::AddUnsignedOverflowTest)
4478 .Case(S: "add-signed-overflow-test",
4479 Value: LangOptionsBase::AddSignedOverflowTest)
4480 .Case(S: "negated-unsigned-const", Value: LangOptionsBase::NegUnsignedConst)
4481 .Case(S: "unsigned-post-decr-while",
4482 Value: LangOptionsBase::PostDecrInWhile)
4483 .Default(Value: 0);
4484 }
4485 }
4486
4487 // Parse -fsanitize= arguments.
4488 parseSanitizerKinds(FlagName: "-fsanitize=", Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_EQ),
4489 Diags, S&: Opts.Sanitize);
4490 Opts.NoSanitizeFiles = Args.getAllArgValues(Id: OPT_fsanitize_ignorelist_EQ);
4491 std::vector<std::string> systemIgnorelists =
4492 Args.getAllArgValues(Id: OPT_fsanitize_system_ignorelist_EQ);
4493 Opts.NoSanitizeFiles.insert(position: Opts.NoSanitizeFiles.end(),
4494 first: systemIgnorelists.begin(),
4495 last: systemIgnorelists.end());
4496
4497 if (Arg *A = Args.getLastArg(Ids: OPT_fclang_abi_compat_EQ)) {
4498 Opts.setClangABICompat(LangOptions::ClangABI::Latest);
4499
4500 StringRef Ver = A->getValue();
4501 std::pair<StringRef, StringRef> VerParts = Ver.split(Separator: '.');
4502 unsigned Major, Minor = 0;
4503
4504 // Check the version number is valid: either 3.x (0 <= x <= 9) or
4505 // y or y.0 (4 <= y <= current version).
4506 if (!VerParts.first.starts_with(Prefix: "0") &&
4507 !VerParts.first.getAsInteger(Radix: 10, Result&: Major) && 3 <= Major &&
4508 Major <= MAX_CLANG_ABI_COMPAT_VERSION &&
4509 (Major == 3
4510 ? VerParts.second.size() == 1 &&
4511 !VerParts.second.getAsInteger(Radix: 10, Result&: Minor)
4512 : VerParts.first.size() == Ver.size() || VerParts.second == "0")) {
4513 // Got a valid version number.
4514 if (Major == 3 && Minor <= 8)
4515 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8);
4516 else if (Major <= 4)
4517 Opts.setClangABICompat(LangOptions::ClangABI::Ver4);
4518 else if (Major <= 6)
4519 Opts.setClangABICompat(LangOptions::ClangABI::Ver6);
4520 else if (Major <= 7)
4521 Opts.setClangABICompat(LangOptions::ClangABI::Ver7);
4522 else if (Major <= 9)
4523 Opts.setClangABICompat(LangOptions::ClangABI::Ver9);
4524 else if (Major <= 11)
4525 Opts.setClangABICompat(LangOptions::ClangABI::Ver11);
4526 else if (Major <= 12)
4527 Opts.setClangABICompat(LangOptions::ClangABI::Ver12);
4528 else if (Major <= 14)
4529 Opts.setClangABICompat(LangOptions::ClangABI::Ver14);
4530 else if (Major <= 15)
4531 Opts.setClangABICompat(LangOptions::ClangABI::Ver15);
4532 else if (Major <= 17)
4533 Opts.setClangABICompat(LangOptions::ClangABI::Ver17);
4534 else if (Major <= 18)
4535 Opts.setClangABICompat(LangOptions::ClangABI::Ver18);
4536 else if (Major <= 19)
4537 Opts.setClangABICompat(LangOptions::ClangABI::Ver19);
4538 else if (Major <= 20)
4539 Opts.setClangABICompat(LangOptions::ClangABI::Ver20);
4540 } else if (Ver != "latest") {
4541 Diags.Report(DiagID: diag::err_drv_invalid_value)
4542 << A->getAsString(Args) << A->getValue();
4543 }
4544 }
4545
4546 if (Arg *A = Args.getLastArg(Ids: OPT_msign_return_address_EQ)) {
4547 StringRef SignScope = A->getValue();
4548
4549 if (SignScope.equals_insensitive(RHS: "none"))
4550 Opts.setSignReturnAddressScope(
4551 LangOptions::SignReturnAddressScopeKind::None);
4552 else if (SignScope.equals_insensitive(RHS: "all"))
4553 Opts.setSignReturnAddressScope(
4554 LangOptions::SignReturnAddressScopeKind::All);
4555 else if (SignScope.equals_insensitive(RHS: "non-leaf"))
4556 Opts.setSignReturnAddressScope(
4557 LangOptions::SignReturnAddressScopeKind::NonLeaf);
4558 else
4559 Diags.Report(DiagID: diag::err_drv_invalid_value)
4560 << A->getAsString(Args) << SignScope;
4561
4562 if (Arg *A = Args.getLastArg(Ids: OPT_msign_return_address_key_EQ)) {
4563 StringRef SignKey = A->getValue();
4564 if (!SignScope.empty() && !SignKey.empty()) {
4565 if (SignKey == "a_key")
4566 Opts.setSignReturnAddressKey(
4567 LangOptions::SignReturnAddressKeyKind::AKey);
4568 else if (SignKey == "b_key")
4569 Opts.setSignReturnAddressKey(
4570 LangOptions::SignReturnAddressKeyKind::BKey);
4571 else
4572 Diags.Report(DiagID: diag::err_drv_invalid_value)
4573 << A->getAsString(Args) << SignKey;
4574 }
4575 }
4576 }
4577
4578 // The value can be empty, which indicates the system default should be used.
4579 StringRef CXXABI = Args.getLastArgValue(Id: OPT_fcxx_abi_EQ);
4580 if (!CXXABI.empty()) {
4581 if (!TargetCXXABI::isABI(Name: CXXABI)) {
4582 Diags.Report(DiagID: diag::err_invalid_cxx_abi) << CXXABI;
4583 } else {
4584 auto Kind = TargetCXXABI::getKind(Name: CXXABI);
4585 if (!TargetCXXABI::isSupportedCXXABI(T, Kind))
4586 Diags.Report(DiagID: diag::err_unsupported_cxx_abi) << CXXABI << T.str();
4587 else
4588 Opts.CXXABI = Kind;
4589 }
4590 }
4591
4592 Opts.RelativeCXXABIVTables =
4593 Args.hasFlag(Pos: options::OPT_fexperimental_relative_cxx_abi_vtables,
4594 Neg: options::OPT_fno_experimental_relative_cxx_abi_vtables,
4595 Default: TargetCXXABI::usesRelativeVTables(T));
4596
4597 // RTTI is on by default.
4598 bool HasRTTI = !Args.hasArg(Ids: options::OPT_fno_rtti);
4599 Opts.OmitVTableRTTI =
4600 Args.hasFlag(Pos: options::OPT_fexperimental_omit_vtable_rtti,
4601 Neg: options::OPT_fno_experimental_omit_vtable_rtti, Default: false);
4602 if (Opts.OmitVTableRTTI && HasRTTI)
4603 Diags.Report(DiagID: diag::err_drv_using_omit_rtti_component_without_no_rtti);
4604
4605 for (const auto &A : Args.getAllArgValues(Id: OPT_fmacro_prefix_map_EQ)) {
4606 auto Split = StringRef(A).split(Separator: '=');
4607 Opts.MacroPrefixMap.insert(
4608 x: {std::string(Split.first), std::string(Split.second)});
4609 }
4610
4611 Opts.UseTargetPathSeparator =
4612 !Args.getLastArg(Ids: OPT_fno_file_reproducible) &&
4613 (Args.getLastArg(Ids: OPT_ffile_compilation_dir_EQ) ||
4614 Args.getLastArg(Ids: OPT_fmacro_prefix_map_EQ) ||
4615 Args.getLastArg(Ids: OPT_ffile_reproducible));
4616
4617 // Error if -mvscale-min is unbounded.
4618 if (Arg *A = Args.getLastArg(Ids: options::OPT_mvscale_min_EQ)) {
4619 unsigned VScaleMin;
4620 if (StringRef(A->getValue()).getAsInteger(Radix: 10, Result&: VScaleMin) || VScaleMin == 0)
4621 Diags.Report(DiagID: diag::err_cc1_unbounded_vscale_min);
4622 }
4623 if (Arg *A = Args.getLastArg(Ids: options::OPT_mvscale_streaming_min_EQ)) {
4624 unsigned VScaleMin;
4625 if (StringRef(A->getValue()).getAsInteger(Radix: 10, Result&: VScaleMin) || VScaleMin == 0)
4626 Diags.Report(DiagID: diag::err_cc1_unbounded_vscale_min);
4627 }
4628
4629 if (const Arg *A = Args.getLastArg(Ids: OPT_frandomize_layout_seed_file_EQ)) {
4630 std::ifstream SeedFile(A->getValue(N: 0));
4631
4632 if (!SeedFile.is_open())
4633 Diags.Report(DiagID: diag::err_drv_cannot_open_randomize_layout_seed_file)
4634 << A->getValue(N: 0);
4635
4636 std::getline(is&: SeedFile, str&: Opts.RandstructSeed);
4637 }
4638
4639 if (const Arg *A = Args.getLastArg(Ids: OPT_frandomize_layout_seed_EQ))
4640 Opts.RandstructSeed = A->getValue(N: 0);
4641
4642 // Validate options for HLSL
4643 if (Opts.HLSL) {
4644 // TODO: Revisit restricting SPIR-V to logical once we've figured out how to
4645 // handle PhysicalStorageBuffer64 memory model
4646 if (T.isDXIL() || T.isSPIRVLogical()) {
4647 enum { ShaderModel, VulkanEnv, ShaderStage };
4648 enum { OS, Environment };
4649
4650 int ExpectedOS = T.isSPIRVLogical() ? VulkanEnv : ShaderModel;
4651
4652 if (T.getOSName().empty()) {
4653 Diags.Report(DiagID: diag::err_drv_hlsl_bad_shader_required_in_target)
4654 << ExpectedOS << OS << T.str();
4655 } else if (T.getEnvironmentName().empty()) {
4656 Diags.Report(DiagID: diag::err_drv_hlsl_bad_shader_required_in_target)
4657 << ShaderStage << Environment << T.str();
4658 } else if (!T.isShaderStageEnvironment()) {
4659 Diags.Report(DiagID: diag::err_drv_hlsl_bad_shader_unsupported)
4660 << ShaderStage << T.getEnvironmentName() << T.str();
4661 }
4662
4663 if (T.isDXIL()) {
4664 if (!T.isShaderModelOS() || T.getOSVersion() == VersionTuple(0)) {
4665 Diags.Report(DiagID: diag::err_drv_hlsl_bad_shader_unsupported)
4666 << ShaderModel << T.getOSName() << T.str();
4667 }
4668 // Validate that if fnative-half-type is given, that
4669 // the language standard is at least hlsl2018, and that
4670 // the target shader model is at least 6.2.
4671 if (Args.getLastArg(Ids: OPT_fnative_half_type)) {
4672 const LangStandard &Std =
4673 LangStandard::getLangStandardForKind(K: Opts.LangStd);
4674 if (!(Opts.LangStd >= LangStandard::lang_hlsl2018 &&
4675 T.getOSVersion() >= VersionTuple(6, 2)))
4676 Diags.Report(DiagID: diag::err_drv_hlsl_16bit_types_unsupported)
4677 << "-enable-16bit-types" << true << Std.getName()
4678 << T.getOSVersion().getAsString();
4679 }
4680 } else if (T.isSPIRVLogical()) {
4681 if (!T.isVulkanOS() || T.getVulkanVersion() == VersionTuple(0)) {
4682 Diags.Report(DiagID: diag::err_drv_hlsl_bad_shader_unsupported)
4683 << VulkanEnv << T.getOSName() << T.str();
4684 }
4685 if (Args.getLastArg(Ids: OPT_fnative_half_type)) {
4686 const LangStandard &Std =
4687 LangStandard::getLangStandardForKind(K: Opts.LangStd);
4688 if (!(Opts.LangStd >= LangStandard::lang_hlsl2018))
4689 Diags.Report(DiagID: diag::err_drv_hlsl_16bit_types_unsupported)
4690 << "-fnative-half-type" << false << Std.getName();
4691 }
4692 } else {
4693 llvm_unreachable("expected DXIL or SPIR-V target");
4694 }
4695 } else
4696 Diags.Report(DiagID: diag::err_drv_hlsl_unsupported_target) << T.str();
4697
4698 if (Opts.LangStd < LangStandard::lang_hlsl202x) {
4699 const LangStandard &Requested =
4700 LangStandard::getLangStandardForKind(K: Opts.LangStd);
4701 const LangStandard &Recommended =
4702 LangStandard::getLangStandardForKind(K: LangStandard::lang_hlsl202x);
4703 Diags.Report(DiagID: diag::warn_hlsl_langstd_minimal)
4704 << Requested.getName() << Recommended.getName();
4705 }
4706 }
4707
4708 return Diags.getNumErrors() == NumErrorsBefore;
4709}
4710
4711static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) {
4712 switch (Action) {
4713 case frontend::ASTDeclList:
4714 case frontend::ASTDump:
4715 case frontend::ASTPrint:
4716 case frontend::ASTView:
4717 case frontend::EmitAssembly:
4718 case frontend::EmitBC:
4719 case frontend::EmitCIR:
4720 case frontend::EmitHTML:
4721 case frontend::EmitLLVM:
4722 case frontend::EmitLLVMOnly:
4723 case frontend::EmitCodeGenOnly:
4724 case frontend::EmitObj:
4725 case frontend::ExtractAPI:
4726 case frontend::FixIt:
4727 case frontend::GenerateModule:
4728 case frontend::GenerateModuleInterface:
4729 case frontend::GenerateReducedModuleInterface:
4730 case frontend::GenerateHeaderUnit:
4731 case frontend::GeneratePCH:
4732 case frontend::GenerateInterfaceStubs:
4733 case frontend::ParseSyntaxOnly:
4734 case frontend::ModuleFileInfo:
4735 case frontend::VerifyPCH:
4736 case frontend::PluginAction:
4737 case frontend::RewriteObjC:
4738 case frontend::RewriteTest:
4739 case frontend::RunAnalysis:
4740 case frontend::TemplightDump:
4741 return false;
4742
4743 case frontend::DumpCompilerOptions:
4744 case frontend::DumpRawTokens:
4745 case frontend::DumpTokens:
4746 case frontend::InitOnly:
4747 case frontend::PrintPreamble:
4748 case frontend::PrintPreprocessedInput:
4749 case frontend::RewriteMacros:
4750 case frontend::RunPreprocessorOnly:
4751 case frontend::PrintDependencyDirectivesSourceMinimizerOutput:
4752 return true;
4753 }
4754 llvm_unreachable("invalid frontend action");
4755}
4756
4757static bool isCodeGenAction(frontend::ActionKind Action) {
4758 switch (Action) {
4759 case frontend::EmitAssembly:
4760 case frontend::EmitBC:
4761 case frontend::EmitCIR:
4762 case frontend::EmitHTML:
4763 case frontend::EmitLLVM:
4764 case frontend::EmitLLVMOnly:
4765 case frontend::EmitCodeGenOnly:
4766 case frontend::EmitObj:
4767 case frontend::GenerateModule:
4768 case frontend::GenerateModuleInterface:
4769 case frontend::GenerateReducedModuleInterface:
4770 case frontend::GenerateHeaderUnit:
4771 case frontend::GeneratePCH:
4772 case frontend::GenerateInterfaceStubs:
4773 return true;
4774 case frontend::ASTDeclList:
4775 case frontend::ASTDump:
4776 case frontend::ASTPrint:
4777 case frontend::ASTView:
4778 case frontend::ExtractAPI:
4779 case frontend::FixIt:
4780 case frontend::ParseSyntaxOnly:
4781 case frontend::ModuleFileInfo:
4782 case frontend::VerifyPCH:
4783 case frontend::PluginAction:
4784 case frontend::RewriteObjC:
4785 case frontend::RewriteTest:
4786 case frontend::RunAnalysis:
4787 case frontend::TemplightDump:
4788 case frontend::DumpCompilerOptions:
4789 case frontend::DumpRawTokens:
4790 case frontend::DumpTokens:
4791 case frontend::InitOnly:
4792 case frontend::PrintPreamble:
4793 case frontend::PrintPreprocessedInput:
4794 case frontend::RewriteMacros:
4795 case frontend::RunPreprocessorOnly:
4796 case frontend::PrintDependencyDirectivesSourceMinimizerOutput:
4797 return false;
4798 }
4799 llvm_unreachable("invalid frontend action");
4800}
4801
4802static void GeneratePreprocessorArgs(const PreprocessorOptions &Opts,
4803 ArgumentConsumer Consumer,
4804 const LangOptions &LangOpts,
4805 const FrontendOptions &FrontendOpts,
4806 const CodeGenOptions &CodeGenOpts) {
4807 const PreprocessorOptions *PreprocessorOpts = &Opts;
4808
4809#define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \
4810 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
4811#include "clang/Driver/Options.inc"
4812#undef PREPROCESSOR_OPTION_WITH_MARSHALLING
4813
4814 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate)
4815 GenerateArg(Consumer, OptSpecifier: OPT_pch_through_hdrstop_use);
4816
4817 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn)
4818 GenerateArg(Consumer, OptSpecifier: OPT_error_on_deserialized_pch_decl, Value: D);
4819
4820 if (Opts.PrecompiledPreambleBytes != std::make_pair(x: 0u, y: false))
4821 GenerateArg(Consumer, OptSpecifier: OPT_preamble_bytes_EQ,
4822 Value: Twine(Opts.PrecompiledPreambleBytes.first) + "," +
4823 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"));
4824
4825 for (const auto &M : Opts.Macros) {
4826 // Don't generate __CET__ macro definitions. They are implied by the
4827 // -fcf-protection option that is generated elsewhere.
4828 if (M.first == "__CET__=1" && !M.second &&
4829 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch)
4830 continue;
4831 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn &&
4832 !CodeGenOpts.CFProtectionBranch)
4833 continue;
4834 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn &&
4835 CodeGenOpts.CFProtectionBranch)
4836 continue;
4837
4838 GenerateArg(Consumer, OptSpecifier: M.second ? OPT_U : OPT_D, Value: M.first);
4839 }
4840
4841 for (const auto &I : Opts.Includes) {
4842 // Don't generate OpenCL includes. They are implied by other flags that are
4843 // generated elsewhere.
4844 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader &&
4845 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") ||
4846 I == "opencl-c.h"))
4847 continue;
4848 // Don't generate HLSL includes. They are implied by other flags that are
4849 // generated elsewhere.
4850 if (LangOpts.HLSL && I == "hlsl.h")
4851 continue;
4852
4853 GenerateArg(Consumer, OptSpecifier: OPT_include, Value: I);
4854 }
4855
4856 for (const auto &CI : Opts.ChainedIncludes)
4857 GenerateArg(Consumer, OptSpecifier: OPT_chain_include, Value: CI);
4858
4859 for (const auto &RF : Opts.RemappedFiles)
4860 GenerateArg(Consumer, OptSpecifier: OPT_remap_file, Value: RF.first + ";" + RF.second);
4861
4862 if (Opts.SourceDateEpoch)
4863 GenerateArg(Consumer, OptSpecifier: OPT_source_date_epoch, Value: Twine(*Opts.SourceDateEpoch));
4864
4865 if (Opts.DefineTargetOSMacros)
4866 GenerateArg(Consumer, OptSpecifier: OPT_fdefine_target_os_macros);
4867
4868 for (const auto &EmbedEntry : Opts.EmbedEntries)
4869 GenerateArg(Consumer, OptSpecifier: OPT_embed_dir_EQ, Value: EmbedEntry);
4870
4871 // Don't handle LexEditorPlaceholders. It is implied by the action that is
4872 // generated elsewhere.
4873}
4874
4875static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
4876 DiagnosticsEngine &Diags,
4877 frontend::ActionKind Action,
4878 const FrontendOptions &FrontendOpts) {
4879 unsigned NumErrorsBefore = Diags.getNumErrors();
4880
4881 PreprocessorOptions *PreprocessorOpts = &Opts;
4882
4883#define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \
4884 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
4885#include "clang/Driver/Options.inc"
4886#undef PREPROCESSOR_OPTION_WITH_MARSHALLING
4887
4888 Opts.PCHWithHdrStop = Args.hasArg(Ids: OPT_pch_through_hdrstop_create) ||
4889 Args.hasArg(Ids: OPT_pch_through_hdrstop_use);
4890
4891 for (const auto *A : Args.filtered(Ids: OPT_error_on_deserialized_pch_decl))
4892 Opts.DeserializedPCHDeclsToErrorOn.insert(x: A->getValue());
4893
4894 if (const Arg *A = Args.getLastArg(Ids: OPT_preamble_bytes_EQ)) {
4895 StringRef Value(A->getValue());
4896 size_t Comma = Value.find(C: ',');
4897 unsigned Bytes = 0;
4898 unsigned EndOfLine = 0;
4899
4900 if (Comma == StringRef::npos ||
4901 Value.substr(Start: 0, N: Comma).getAsInteger(Radix: 10, Result&: Bytes) ||
4902 Value.substr(Start: Comma + 1).getAsInteger(Radix: 10, Result&: EndOfLine))
4903 Diags.Report(DiagID: diag::err_drv_preamble_format);
4904 else {
4905 Opts.PrecompiledPreambleBytes.first = Bytes;
4906 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0);
4907 }
4908 }
4909
4910 // Add macros from the command line.
4911 for (const auto *A : Args.filtered(Ids: OPT_D, Ids: OPT_U)) {
4912 if (A->getOption().matches(ID: OPT_D))
4913 Opts.addMacroDef(Name: A->getValue());
4914 else
4915 Opts.addMacroUndef(Name: A->getValue());
4916 }
4917
4918 // Add the ordered list of -includes.
4919 for (const auto *A : Args.filtered(Ids: OPT_include))
4920 Opts.Includes.emplace_back(args: A->getValue());
4921
4922 for (const auto *A : Args.filtered(Ids: OPT_chain_include))
4923 Opts.ChainedIncludes.emplace_back(args: A->getValue());
4924
4925 for (const auto *A : Args.filtered(Ids: OPT_remap_file)) {
4926 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(Separator: ';');
4927
4928 if (Split.second.empty()) {
4929 Diags.Report(DiagID: diag::err_drv_invalid_remap_file) << A->getAsString(Args);
4930 continue;
4931 }
4932
4933 Opts.addRemappedFile(From: Split.first, To: Split.second);
4934 }
4935
4936 if (const Arg *A = Args.getLastArg(Ids: OPT_source_date_epoch)) {
4937 StringRef Epoch = A->getValue();
4938 // SOURCE_DATE_EPOCH, if specified, must be a non-negative decimal integer.
4939 // On time64 systems, pick 253402300799 (the UNIX timestamp of
4940 // 9999-12-31T23:59:59Z) as the upper bound.
4941 const uint64_t MaxTimestamp =
4942 std::min<uint64_t>(a: std::numeric_limits<time_t>::max(), b: 253402300799);
4943 uint64_t V;
4944 if (Epoch.getAsInteger(Radix: 10, Result&: V) || V > MaxTimestamp) {
4945 Diags.Report(DiagID: diag::err_fe_invalid_source_date_epoch)
4946 << Epoch << MaxTimestamp;
4947 } else {
4948 Opts.SourceDateEpoch = V;
4949 }
4950 }
4951
4952 for (const auto *A : Args.filtered(Ids: OPT_embed_dir_EQ)) {
4953 StringRef Val = A->getValue();
4954 Opts.EmbedEntries.push_back(x: std::string(Val));
4955 }
4956
4957 // Always avoid lexing editor placeholders when we're just running the
4958 // preprocessor as we never want to emit the
4959 // "editor placeholder in source file" error in PP only mode.
4960 if (isStrictlyPreprocessorAction(Action))
4961 Opts.LexEditorPlaceholders = false;
4962
4963 Opts.DefineTargetOSMacros =
4964 Args.hasFlag(Pos: OPT_fdefine_target_os_macros,
4965 Neg: OPT_fno_define_target_os_macros, Default: Opts.DefineTargetOSMacros);
4966
4967 return Diags.getNumErrors() == NumErrorsBefore;
4968}
4969
4970static void
4971GeneratePreprocessorOutputArgs(const PreprocessorOutputOptions &Opts,
4972 ArgumentConsumer Consumer,
4973 frontend::ActionKind Action) {
4974 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts;
4975
4976#define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \
4977 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
4978#include "clang/Driver/Options.inc"
4979#undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING
4980
4981 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP;
4982 if (Generate_dM)
4983 GenerateArg(Consumer, OptSpecifier: OPT_dM);
4984 if (!Generate_dM && Opts.ShowMacros)
4985 GenerateArg(Consumer, OptSpecifier: OPT_dD);
4986 if (Opts.DirectivesOnly)
4987 GenerateArg(Consumer, OptSpecifier: OPT_fdirectives_only);
4988}
4989
4990static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
4991 ArgList &Args, DiagnosticsEngine &Diags,
4992 frontend::ActionKind Action) {
4993 unsigned NumErrorsBefore = Diags.getNumErrors();
4994
4995 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts;
4996
4997#define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \
4998 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
4999#include "clang/Driver/Options.inc"
5000#undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING
5001
5002 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(Ids: OPT_dM);
5003 Opts.ShowMacros = Args.hasArg(Ids: OPT_dM) || Args.hasArg(Ids: OPT_dD);
5004 Opts.DirectivesOnly = Args.hasArg(Ids: OPT_fdirectives_only);
5005
5006 return Diags.getNumErrors() == NumErrorsBefore;
5007}
5008
5009static void GenerateTargetArgs(const TargetOptions &Opts,
5010 ArgumentConsumer Consumer) {
5011 const TargetOptions *TargetOpts = &Opts;
5012#define TARGET_OPTION_WITH_MARSHALLING(...) \
5013 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
5014#include "clang/Driver/Options.inc"
5015#undef TARGET_OPTION_WITH_MARSHALLING
5016
5017 if (!Opts.SDKVersion.empty())
5018 GenerateArg(Consumer, OptSpecifier: OPT_target_sdk_version_EQ,
5019 Value: Opts.SDKVersion.getAsString());
5020 if (!Opts.DarwinTargetVariantSDKVersion.empty())
5021 GenerateArg(Consumer, OptSpecifier: OPT_darwin_target_variant_sdk_version_EQ,
5022 Value: Opts.DarwinTargetVariantSDKVersion.getAsString());
5023}
5024
5025static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args,
5026 DiagnosticsEngine &Diags) {
5027 unsigned NumErrorsBefore = Diags.getNumErrors();
5028
5029 TargetOptions *TargetOpts = &Opts;
5030
5031#define TARGET_OPTION_WITH_MARSHALLING(...) \
5032 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
5033#include "clang/Driver/Options.inc"
5034#undef TARGET_OPTION_WITH_MARSHALLING
5035
5036 if (Arg *A = Args.getLastArg(Ids: options::OPT_target_sdk_version_EQ)) {
5037 llvm::VersionTuple Version;
5038 if (Version.tryParse(string: A->getValue()))
5039 Diags.Report(DiagID: diag::err_drv_invalid_value)
5040 << A->getAsString(Args) << A->getValue();
5041 else
5042 Opts.SDKVersion = Version;
5043 }
5044 if (Arg *A =
5045 Args.getLastArg(Ids: options::OPT_darwin_target_variant_sdk_version_EQ)) {
5046 llvm::VersionTuple Version;
5047 if (Version.tryParse(string: A->getValue()))
5048 Diags.Report(DiagID: diag::err_drv_invalid_value)
5049 << A->getAsString(Args) << A->getValue();
5050 else
5051 Opts.DarwinTargetVariantSDKVersion = Version;
5052 }
5053
5054 return Diags.getNumErrors() == NumErrorsBefore;
5055}
5056
5057bool CompilerInvocation::CreateFromArgsImpl(
5058 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs,
5059 DiagnosticsEngine &Diags, const char *Argv0) {
5060 unsigned NumErrorsBefore = Diags.getNumErrors();
5061
5062 // Parse the arguments.
5063 const OptTable &Opts = getDriverOptTable();
5064 llvm::opt::Visibility VisibilityMask(options::CC1Option);
5065 unsigned MissingArgIndex, MissingArgCount;
5066 InputArgList Args = Opts.ParseArgs(Args: CommandLineArgs, MissingArgIndex,
5067 MissingArgCount, VisibilityMask);
5068 LangOptions &LangOpts = Res.getLangOpts();
5069
5070 // Check for missing argument error.
5071 if (MissingArgCount)
5072 Diags.Report(DiagID: diag::err_drv_missing_argument)
5073 << Args.getArgString(Index: MissingArgIndex) << MissingArgCount;
5074
5075 // Issue errors on unknown arguments.
5076 for (const auto *A : Args.filtered(Ids: OPT_UNKNOWN)) {
5077 auto ArgString = A->getAsString(Args);
5078 std::string Nearest;
5079 if (Opts.findNearest(Option: ArgString, NearestString&: Nearest, VisibilityMask) > 1)
5080 Diags.Report(DiagID: diag::err_drv_unknown_argument) << ArgString;
5081 else
5082 Diags.Report(DiagID: diag::err_drv_unknown_argument_with_suggestion)
5083 << ArgString << Nearest;
5084 }
5085
5086 ParseFileSystemArgs(Opts&: Res.getFileSystemOpts(), Args, Diags);
5087 ParseMigratorArgs(Opts&: Res.getMigratorOpts(), Args, Diags);
5088 ParseAnalyzerArgs(Opts&: Res.getAnalyzerOpts(), Args, Diags);
5089 ParseDiagnosticArgs(Opts&: Res.getDiagnosticOpts(), Args, Diags: &Diags,
5090 /*DefaultDiagColor=*/false);
5091 ParseFrontendArgs(Opts&: Res.getFrontendOpts(), Args, Diags, IsHeaderFile&: LangOpts.IsHeaderFile);
5092 // FIXME: We shouldn't have to pass the DashX option around here
5093 InputKind DashX = Res.getFrontendOpts().DashX;
5094 ParseTargetArgs(Opts&: Res.getTargetOpts(), Args, Diags);
5095 llvm::Triple T(Res.getTargetOpts().Triple);
5096 ParseHeaderSearchArgs(Opts&: Res.getHeaderSearchOpts(), Args, Diags,
5097 WorkingDir: Res.getFileSystemOpts().WorkingDir);
5098 if (Res.getFrontendOpts().GenReducedBMI ||
5099 Res.getFrontendOpts().ProgramAction ==
5100 frontend::GenerateReducedModuleInterface ||
5101 Res.getFrontendOpts().ProgramAction ==
5102 frontend::GenerateModuleInterface) {
5103 Res.getHeaderSearchOpts().ModulesSkipDiagnosticOptions = true;
5104 Res.getHeaderSearchOpts().ModulesSkipHeaderSearchPaths = true;
5105 }
5106 ParseAPINotesArgs(Opts&: Res.getAPINotesOpts(), Args, diags&: Diags);
5107
5108 ParsePointerAuthArgs(Opts&: LangOpts, Args, Diags);
5109
5110 ParseLangArgs(Opts&: LangOpts, Args, IK: DashX, T, Includes&: Res.getPreprocessorOpts().Includes,
5111 Diags);
5112 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
5113 LangOpts.ObjCExceptions = 1;
5114
5115 for (auto Warning : Res.getDiagnosticOpts().Warnings) {
5116 if (Warning == "misexpect" &&
5117 !Diags.isIgnored(DiagID: diag::warn_profile_data_misexpect, Loc: SourceLocation())) {
5118 Res.getCodeGenOpts().MisExpect = true;
5119 }
5120 }
5121
5122 if (LangOpts.CUDA) {
5123 // During CUDA device-side compilation, the aux triple is the
5124 // triple used for host compilation.
5125 if (LangOpts.CUDAIsDevice)
5126 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
5127 }
5128
5129 if (LangOpts.OpenACC && !Res.getFrontendOpts().UseClangIRPipeline &&
5130 isCodeGenAction(Action: Res.getFrontendOpts().ProgramAction))
5131 Diags.Report(DiagID: diag::warn_drv_openacc_without_cir);
5132
5133 // Set the triple of the host for OpenMP device compile.
5134 if (LangOpts.OpenMPIsTargetDevice)
5135 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
5136
5137 ParseCodeGenArgs(Opts&: Res.getCodeGenOpts(), Args, IK: DashX, Diags, T,
5138 OutputFile: Res.getFrontendOpts().OutputFile, LangOptsRef: LangOpts);
5139
5140 // FIXME: Override value name discarding when asan or msan is used because the
5141 // backend passes depend on the name of the alloca in order to print out
5142 // names.
5143 Res.getCodeGenOpts().DiscardValueNames &=
5144 !LangOpts.Sanitize.has(K: SanitizerKind::Address) &&
5145 !LangOpts.Sanitize.has(K: SanitizerKind::KernelAddress) &&
5146 !LangOpts.Sanitize.has(K: SanitizerKind::Memory) &&
5147 !LangOpts.Sanitize.has(K: SanitizerKind::KernelMemory);
5148
5149 ParsePreprocessorArgs(Opts&: Res.getPreprocessorOpts(), Args, Diags,
5150 Action: Res.getFrontendOpts().ProgramAction,
5151 FrontendOpts: Res.getFrontendOpts());
5152 ParsePreprocessorOutputArgs(Opts&: Res.getPreprocessorOutputOpts(), Args, Diags,
5153 Action: Res.getFrontendOpts().ProgramAction);
5154
5155 ParseDependencyOutputArgs(Opts&: Res.getDependencyOutputOpts(), Args, Diags,
5156 Action: Res.getFrontendOpts().ProgramAction,
5157 ShowLineMarkers: Res.getPreprocessorOutputOpts().ShowLineMarkers);
5158 if (!Res.getDependencyOutputOpts().OutputFile.empty() &&
5159 Res.getDependencyOutputOpts().Targets.empty())
5160 Diags.Report(DiagID: diag::err_fe_dependency_file_requires_MT);
5161
5162 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses.
5163 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses &&
5164 !Res.getLangOpts().Sanitize.empty()) {
5165 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false;
5166 Diags.Report(DiagID: diag::warn_drv_fine_grained_bitfield_accesses_ignored);
5167 }
5168
5169 // Store the command-line for using in the CodeView backend.
5170 if (Res.getCodeGenOpts().CodeViewCommandLine) {
5171 Res.getCodeGenOpts().Argv0 = Argv0;
5172 append_range(C&: Res.getCodeGenOpts().CommandLineArgs, R&: CommandLineArgs);
5173 }
5174
5175 // Set PGOOptions. Need to create a temporary VFS to read the profile
5176 // to determine the PGO type.
5177 if (!Res.getCodeGenOpts().ProfileInstrumentUsePath.empty()) {
5178 auto FS =
5179 createVFSFromOverlayFiles(VFSOverlayFiles: Res.getHeaderSearchOpts().VFSOverlayFiles,
5180 Diags, BaseFS: llvm::vfs::getRealFileSystem());
5181 setPGOUseInstrumentor(Opts&: Res.getCodeGenOpts(),
5182 ProfileName: Res.getCodeGenOpts().ProfileInstrumentUsePath, FS&: *FS,
5183 Diags);
5184 }
5185
5186 FixupInvocation(Invocation&: Res, Diags, Args, IK: DashX);
5187
5188 return Diags.getNumErrors() == NumErrorsBefore;
5189}
5190
5191bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation,
5192 ArrayRef<const char *> CommandLineArgs,
5193 DiagnosticsEngine &Diags,
5194 const char *Argv0) {
5195 CompilerInvocation DummyInvocation;
5196
5197 return RoundTrip(
5198 Parse: [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs,
5199 DiagnosticsEngine &Diags, const char *Argv0) {
5200 return CreateFromArgsImpl(Res&: Invocation, CommandLineArgs, Diags, Argv0);
5201 },
5202 Generate: [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args,
5203 StringAllocator SA) {
5204 Args.push_back(Elt: "-cc1");
5205 Invocation.generateCC1CommandLine(Args, SA);
5206 },
5207 RealInvocation&: Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0);
5208}
5209
5210std::string CompilerInvocation::getModuleHash() const {
5211 // FIXME: Consider using SHA1 instead of MD5.
5212 llvm::HashBuilder<llvm::MD5, llvm::endianness::native> HBuilder;
5213
5214 // Note: For QoI reasons, the things we use as a hash here should all be
5215 // dumped via the -module-info flag.
5216
5217 // Start the signature with the compiler version.
5218 HBuilder.add(Value: getClangFullRepositoryVersion());
5219
5220 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off
5221 // and getClangFullRepositoryVersion() doesn't include git revision.
5222 HBuilder.add(Args: serialization::VERSION_MAJOR, Args: serialization::VERSION_MINOR);
5223
5224 // Extend the signature with the language options
5225#define LANGOPT(Name, Bits, Default, Description) HBuilder.add(LangOpts->Name);
5226#define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
5227 HBuilder.add(static_cast<unsigned>(LangOpts->get##Name()));
5228#define BENIGN_LANGOPT(Name, Bits, Default, Description)
5229#define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
5230#include "clang/Basic/LangOptions.def"
5231
5232 HBuilder.addRange(Range: getLangOpts().ModuleFeatures);
5233
5234 HBuilder.add(Value: getLangOpts().ObjCRuntime);
5235 HBuilder.addRange(Range: getLangOpts().CommentOpts.BlockCommandNames);
5236
5237 // Extend the signature with the target options.
5238 HBuilder.add(Args: getTargetOpts().Triple, Args: getTargetOpts().CPU,
5239 Args: getTargetOpts().TuneCPU, Args: getTargetOpts().ABI);
5240 HBuilder.addRange(Range: getTargetOpts().FeaturesAsWritten);
5241
5242 // Extend the signature with preprocessor options.
5243 const PreprocessorOptions &ppOpts = getPreprocessorOpts();
5244 HBuilder.add(Args: ppOpts.UsePredefines, Args: ppOpts.DetailedRecord);
5245
5246 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts();
5247 for (const auto &Macro : getPreprocessorOpts().Macros) {
5248 // If we're supposed to ignore this macro for the purposes of modules,
5249 // don't put it into the hash.
5250 if (!hsOpts.ModulesIgnoreMacros.empty()) {
5251 // Check whether we're ignoring this macro.
5252 StringRef MacroDef = Macro.first;
5253 if (hsOpts.ModulesIgnoreMacros.count(
5254 key: llvm::CachedHashString(MacroDef.split(Separator: '=').first)))
5255 continue;
5256 }
5257
5258 HBuilder.add(Value: Macro);
5259 }
5260
5261 // Extend the signature with the sysroot and other header search options.
5262 HBuilder.add(Args: hsOpts.Sysroot, Args: hsOpts.ModuleFormat, Args: hsOpts.UseDebugInfo,
5263 Args: hsOpts.UseBuiltinIncludes, Args: hsOpts.UseStandardSystemIncludes,
5264 Args: hsOpts.UseStandardCXXIncludes, Args: hsOpts.UseLibcxx,
5265 Args: hsOpts.ModulesValidateDiagnosticOptions);
5266 HBuilder.add(Value: hsOpts.ResourceDir);
5267
5268 if (hsOpts.ModulesStrictContextHash) {
5269 HBuilder.addRange(Range: hsOpts.SystemHeaderPrefixes);
5270 HBuilder.addRange(Range: hsOpts.UserEntries);
5271 HBuilder.addRange(Range: hsOpts.VFSOverlayFiles);
5272
5273 const DiagnosticOptions &diagOpts = getDiagnosticOpts();
5274#define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name);
5275#define ENUM_DIAGOPT(Name, Type, Bits, Default) \
5276 HBuilder.add(diagOpts.get##Name());
5277#include "clang/Basic/DiagnosticOptions.def"
5278#undef DIAGOPT
5279#undef ENUM_DIAGOPT
5280 }
5281
5282 // Extend the signature with the user build path.
5283 HBuilder.add(Value: hsOpts.ModuleUserBuildPath);
5284
5285 // Extend the signature with the module file extensions.
5286 for (const auto &ext : getFrontendOpts().ModuleFileExtensions)
5287 ext->hashExtension(HBuilder);
5288
5289 // Extend the signature with the Swift version for API notes.
5290 const APINotesOptions &APINotesOpts = getAPINotesOpts();
5291 if (!APINotesOpts.SwiftVersion.empty()) {
5292 HBuilder.add(Value: APINotesOpts.SwiftVersion.getMajor());
5293 if (auto Minor = APINotesOpts.SwiftVersion.getMinor())
5294 HBuilder.add(Value: *Minor);
5295 if (auto Subminor = APINotesOpts.SwiftVersion.getSubminor())
5296 HBuilder.add(Value: *Subminor);
5297 if (auto Build = APINotesOpts.SwiftVersion.getBuild())
5298 HBuilder.add(Value: *Build);
5299 }
5300
5301 // When compiling with -gmodules, also hash -fdebug-prefix-map as it
5302 // affects the debug info in the PCM.
5303 if (getCodeGenOpts().DebugTypeExtRefs)
5304 HBuilder.addRange(Range: getCodeGenOpts().DebugPrefixMap);
5305
5306 // Extend the signature with the affecting debug options.
5307 if (getHeaderSearchOpts().ModuleFormat == "obj") {
5308#define DEBUGOPT(Name, Bits, Default) HBuilder.add(CodeGenOpts->Name);
5309#define VALUE_DEBUGOPT(Name, Bits, Default) HBuilder.add(CodeGenOpts->Name);
5310#define ENUM_DEBUGOPT(Name, Type, Bits, Default) \
5311 HBuilder.add(static_cast<unsigned>(CodeGenOpts->get##Name()));
5312#define BENIGN_DEBUGOPT(Name, Bits, Default)
5313#define BENIGN_VALUE_DEBUGOPT(Name, Bits, Default)
5314#define BENIGN_ENUM_DEBUGOPT(Name, Type, Bits, Default)
5315#include "clang/Basic/DebugOptions.def"
5316 }
5317
5318 // Extend the signature with the enabled sanitizers, if at least one is
5319 // enabled. Sanitizers which cannot affect AST generation aren't hashed.
5320 SanitizerSet SanHash = getLangOpts().Sanitize;
5321 SanHash.clear(K: getPPTransparentSanitizers());
5322 if (!SanHash.empty())
5323 HBuilder.add(Value: SanHash.Mask);
5324
5325 llvm::MD5::MD5Result Result;
5326 HBuilder.getHasher().final(Result);
5327 uint64_t Hash = Result.high() ^ Result.low();
5328 return toString(I: llvm::APInt(64, Hash), Radix: 36, /*Signed=*/false);
5329}
5330
5331void CompilerInvocationBase::generateCC1CommandLine(
5332 ArgumentConsumer Consumer) const {
5333 llvm::Triple T(getTargetOpts().Triple);
5334
5335 GenerateFileSystemArgs(Opts: getFileSystemOpts(), Consumer);
5336 GenerateMigratorArgs(Opts: getMigratorOpts(), Consumer);
5337 GenerateAnalyzerArgs(Opts: getAnalyzerOpts(), Consumer);
5338 GenerateDiagnosticArgs(Opts: getDiagnosticOpts(), Consumer,
5339 /*DefaultDiagColor=*/false);
5340 GenerateFrontendArgs(Opts: getFrontendOpts(), Consumer, IsHeader: getLangOpts().IsHeaderFile);
5341 GenerateTargetArgs(Opts: getTargetOpts(), Consumer);
5342 GenerateHeaderSearchArgs(Opts: getHeaderSearchOpts(), Consumer);
5343 GenerateAPINotesArgs(Opts: getAPINotesOpts(), Consumer);
5344 GeneratePointerAuthArgs(Opts: getLangOpts(), Consumer);
5345 GenerateLangArgs(Opts: getLangOpts(), Consumer, T, IK: getFrontendOpts().DashX);
5346 GenerateCodeGenArgs(Opts: getCodeGenOpts(), Consumer, T,
5347 OutputFile: getFrontendOpts().OutputFile, LangOpts: &getLangOpts());
5348 GeneratePreprocessorArgs(Opts: getPreprocessorOpts(), Consumer, LangOpts: getLangOpts(),
5349 FrontendOpts: getFrontendOpts(), CodeGenOpts: getCodeGenOpts());
5350 GeneratePreprocessorOutputArgs(Opts: getPreprocessorOutputOpts(), Consumer,
5351 Action: getFrontendOpts().ProgramAction);
5352 GenerateDependencyOutputArgs(Opts: getDependencyOutputOpts(), Consumer);
5353}
5354
5355std::vector<std::string> CompilerInvocationBase::getCC1CommandLine() const {
5356 std::vector<std::string> Args{"-cc1"};
5357 generateCC1CommandLine(
5358 Consumer: [&Args](const Twine &Arg) { Args.push_back(x: Arg.str()); });
5359 return Args;
5360}
5361
5362void CompilerInvocation::resetNonModularOptions() {
5363 getLangOpts().resetNonModularOptions();
5364 getPreprocessorOpts().resetNonModularOptions();
5365 getCodeGenOpts().resetNonModularOptions(ModuleFormat: getHeaderSearchOpts().ModuleFormat);
5366}
5367
5368void CompilerInvocation::clearImplicitModuleBuildOptions() {
5369 getLangOpts().ImplicitModules = false;
5370 getHeaderSearchOpts().ImplicitModuleMaps = false;
5371 getHeaderSearchOpts().ModuleCachePath.clear();
5372 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false;
5373 getHeaderSearchOpts().BuildSessionTimestamp = 0;
5374 // The specific values we canonicalize to for pruning don't affect behaviour,
5375 /// so use the default values so they may be dropped from the command-line.
5376 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60;
5377 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60;
5378}
5379
5380IntrusiveRefCntPtr<llvm::vfs::FileSystem>
5381clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI,
5382 DiagnosticsEngine &Diags) {
5383 return createVFSFromCompilerInvocation(CI, Diags,
5384 BaseFS: llvm::vfs::getRealFileSystem());
5385}
5386
5387IntrusiveRefCntPtr<llvm::vfs::FileSystem>
5388clang::createVFSFromCompilerInvocation(
5389 const CompilerInvocation &CI, DiagnosticsEngine &Diags,
5390 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) {
5391 return createVFSFromOverlayFiles(VFSOverlayFiles: CI.getHeaderSearchOpts().VFSOverlayFiles,
5392 Diags, BaseFS: std::move(BaseFS));
5393}
5394
5395IntrusiveRefCntPtr<llvm::vfs::FileSystem> clang::createVFSFromOverlayFiles(
5396 ArrayRef<std::string> VFSOverlayFiles, DiagnosticsEngine &Diags,
5397 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) {
5398 if (VFSOverlayFiles.empty())
5399 return BaseFS;
5400
5401 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS;
5402 // earlier vfs files are on the bottom
5403 for (const auto &File : VFSOverlayFiles) {
5404 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer =
5405 Result->getBufferForFile(Name: File);
5406 if (!Buffer) {
5407 Diags.Report(DiagID: diag::err_missing_vfs_overlay_file) << File;
5408 continue;
5409 }
5410
5411 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML(
5412 Buffer: std::move(Buffer.get()), /*DiagHandler*/ nullptr, YAMLFilePath: File,
5413 /*DiagContext*/ nullptr, ExternalFS: Result);
5414 if (!FS) {
5415 Diags.Report(DiagID: diag::err_invalid_vfs_overlay) << File;
5416 continue;
5417 }
5418
5419 Result = FS;
5420 }
5421 return Result;
5422}
5423