1//===- CompilerInvocation.cpp ---------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#include "clang/Frontend/CompilerInvocation.h"
10#include "TestModuleFileExtension.h"
11#include "clang/Basic/Builtins.h"
12#include "clang/Basic/CharInfo.h"
13#include "clang/Basic/CodeGenOptions.h"
14#include "clang/Basic/CommentOptions.h"
15#include "clang/Basic/Diagnostic.h"
16#include "clang/Basic/DiagnosticDriver.h"
17#include "clang/Basic/DiagnosticFrontend.h"
18#include "clang/Basic/DiagnosticOptions.h"
19#include "clang/Basic/FileSystemOptions.h"
20#include "clang/Basic/LLVM.h"
21#include "clang/Basic/LangOptions.h"
22#include "clang/Basic/LangStandard.h"
23#include "clang/Basic/ObjCRuntime.h"
24#include "clang/Basic/Sanitizers.h"
25#include "clang/Basic/SourceLocation.h"
26#include "clang/Basic/TargetOptions.h"
27#include "clang/Basic/Version.h"
28#include "clang/Basic/XRayInstr.h"
29#include "clang/Config/config.h"
30#include "clang/Frontend/CommandLineSourceLoc.h"
31#include "clang/Frontend/DependencyOutputOptions.h"
32#include "clang/Frontend/FrontendOptions.h"
33#include "clang/Frontend/MigratorOptions.h"
34#include "clang/Frontend/PreprocessorOutputOptions.h"
35#include "clang/Frontend/SSAFOptions.h"
36#include "clang/Frontend/TextDiagnosticBuffer.h"
37#include "clang/Frontend/Utils.h"
38#include "clang/Lex/HeaderSearchOptions.h"
39#include "clang/Lex/PreprocessorOptions.h"
40#include "clang/Options/Options.h"
41#include "clang/Serialization/ASTBitCodes.h"
42#include "clang/Serialization/ModuleFileExtension.h"
43#include "clang/StaticAnalyzer/Core/AnalyzerOptions.h"
44#include "llvm/ADT/APInt.h"
45#include "llvm/ADT/ArrayRef.h"
46#include "llvm/ADT/CachedHashString.h"
47#include "llvm/ADT/FloatingPointMode.h"
48#include "llvm/ADT/STLExtras.h"
49#include "llvm/ADT/SmallVector.h"
50#include "llvm/ADT/StringRef.h"
51#include "llvm/ADT/StringSwitch.h"
52#include "llvm/ADT/Twine.h"
53#include "llvm/Config/llvm-config.h"
54#include "llvm/Frontend/Debug/Options.h"
55#include "llvm/IR/DebugInfoMetadata.h"
56#include "llvm/Linker/Linker.h"
57#include "llvm/MC/MCTargetOptions.h"
58#include "llvm/Option/Arg.h"
59#include "llvm/Option/ArgList.h"
60#include "llvm/Option/OptSpecifier.h"
61#include "llvm/Option/OptTable.h"
62#include "llvm/Option/Option.h"
63#include "llvm/ProfileData/InstrProfReader.h"
64#include "llvm/Remarks/HotnessThresholdParser.h"
65#include "llvm/Support/CodeGen.h"
66#include "llvm/Support/Compiler.h"
67#include "llvm/Support/Error.h"
68#include "llvm/Support/ErrorHandling.h"
69#include "llvm/Support/ErrorOr.h"
70#include "llvm/Support/FileSystem.h"
71#include "llvm/Support/HashBuilder.h"
72#include "llvm/Support/MathExtras.h"
73#include "llvm/Support/MemoryBuffer.h"
74#include "llvm/Support/Path.h"
75#include "llvm/Support/Process.h"
76#include "llvm/Support/Regex.h"
77#include "llvm/Support/VersionTuple.h"
78#include "llvm/Support/VirtualFileSystem.h"
79#include "llvm/Support/raw_ostream.h"
80#include "llvm/Target/TargetOptions.h"
81#include "llvm/TargetParser/Host.h"
82#include "llvm/TargetParser/Triple.h"
83#include <algorithm>
84#include <cassert>
85#include <cstddef>
86#include <cstring>
87#include <ctime>
88#include <fstream>
89#include <limits>
90#include <memory>
91#include <optional>
92#include <string>
93#include <tuple>
94#include <type_traits>
95#include <utility>
96#include <vector>
97
98using namespace clang;
99using namespace options;
100using namespace llvm::opt;
101
102//===----------------------------------------------------------------------===//
103// Helpers.
104//===----------------------------------------------------------------------===//
105
106// Parse misexpect tolerance argument value.
107// Valid option values are integers in the range [0, 100)
108static Expected<std::optional<uint32_t>> parseToleranceOption(StringRef Arg) {
109 uint32_t Val;
110 if (Arg.getAsInteger(Radix: 10, Result&: Val))
111 return llvm::createStringError(EC: llvm::inconvertibleErrorCode(),
112 Fmt: "Not an integer: %s", Vals: Arg.data());
113 return Val;
114}
115
116//===----------------------------------------------------------------------===//
117// Initialization.
118//===----------------------------------------------------------------------===//
119
120template <class T> std::shared_ptr<T> make_shared_copy(const T &X) {
121 return std::make_shared<T>(X);
122}
123
124CompilerInvocationBase::CompilerInvocationBase()
125 : LangOpts(std::make_shared<LangOptions>()),
126 TargetOpts(std::make_shared<TargetOptions>()),
127 DiagnosticOpts(std::make_shared<DiagnosticOptions>()),
128 HSOpts(std::make_shared<HeaderSearchOptions>()),
129 PPOpts(std::make_shared<PreprocessorOptions>()),
130 AnalyzerOpts(std::make_shared<AnalyzerOptions>()),
131 MigratorOpts(std::make_shared<MigratorOptions>()),
132 APINotesOpts(std::make_shared<APINotesOptions>()),
133 CodeGenOpts(std::make_shared<CodeGenOptions>()),
134 FSOpts(std::make_shared<FileSystemOptions>()),
135 FrontendOpts(std::make_shared<FrontendOptions>()),
136 DependencyOutputOpts(std::make_shared<DependencyOutputOptions>()),
137 PreprocessorOutputOpts(std::make_shared<PreprocessorOutputOptions>()),
138 SSAFOpts(std::make_shared<ssaf::SSAFOptions>()) {}
139
140CompilerInvocationBase &
141CompilerInvocationBase::deep_copy_assign(const CompilerInvocationBase &X) {
142 if (this != &X) {
143 LangOpts = make_shared_copy(X: X.getLangOpts());
144 TargetOpts = make_shared_copy(X: X.getTargetOpts());
145 DiagnosticOpts = make_shared_copy(X: X.getDiagnosticOpts());
146 HSOpts = make_shared_copy(X: X.getHeaderSearchOpts());
147 PPOpts = make_shared_copy(X: X.getPreprocessorOpts());
148 AnalyzerOpts = make_shared_copy(X: X.getAnalyzerOpts());
149 MigratorOpts = make_shared_copy(X: X.getMigratorOpts());
150 APINotesOpts = make_shared_copy(X: X.getAPINotesOpts());
151 CodeGenOpts = make_shared_copy(X: X.getCodeGenOpts());
152 FSOpts = make_shared_copy(X: X.getFileSystemOpts());
153 FrontendOpts = make_shared_copy(X: X.getFrontendOpts());
154 DependencyOutputOpts = make_shared_copy(X: X.getDependencyOutputOpts());
155 PreprocessorOutputOpts = make_shared_copy(X: X.getPreprocessorOutputOpts());
156 SSAFOpts = make_shared_copy(X: X.getSSAFOpts());
157 }
158 return *this;
159}
160
161CompilerInvocationBase &
162CompilerInvocationBase::shallow_copy_assign(const CompilerInvocationBase &X) {
163 if (this != &X) {
164 LangOpts = X.LangOpts;
165 TargetOpts = X.TargetOpts;
166 DiagnosticOpts = X.DiagnosticOpts;
167 HSOpts = X.HSOpts;
168 PPOpts = X.PPOpts;
169 AnalyzerOpts = X.AnalyzerOpts;
170 MigratorOpts = X.MigratorOpts;
171 APINotesOpts = X.APINotesOpts;
172 CodeGenOpts = X.CodeGenOpts;
173 FSOpts = X.FSOpts;
174 FrontendOpts = X.FrontendOpts;
175 DependencyOutputOpts = X.DependencyOutputOpts;
176 PreprocessorOutputOpts = X.PreprocessorOutputOpts;
177 SSAFOpts = X.SSAFOpts;
178 }
179 return *this;
180}
181
182CompilerInvocation::CompilerInvocation(const CowCompilerInvocation &X)
183 : CompilerInvocationBase(EmptyConstructor{}) {
184 CompilerInvocationBase::deep_copy_assign(X);
185}
186
187CompilerInvocation &
188CompilerInvocation::operator=(const CowCompilerInvocation &X) {
189 CompilerInvocationBase::deep_copy_assign(X);
190 return *this;
191}
192
193template <typename T>
194T &ensureOwned(std::shared_ptr<T> &Storage) {
195 if (Storage.use_count() > 1)
196 Storage = std::make_shared<T>(*Storage);
197 return *Storage;
198}
199
200LangOptions &CowCompilerInvocation::getMutLangOpts() {
201 return ensureOwned(Storage&: LangOpts);
202}
203
204TargetOptions &CowCompilerInvocation::getMutTargetOpts() {
205 return ensureOwned(Storage&: TargetOpts);
206}
207
208DiagnosticOptions &CowCompilerInvocation::getMutDiagnosticOpts() {
209 return ensureOwned(Storage&: DiagnosticOpts);
210}
211
212HeaderSearchOptions &CowCompilerInvocation::getMutHeaderSearchOpts() {
213 return ensureOwned(Storage&: HSOpts);
214}
215
216PreprocessorOptions &CowCompilerInvocation::getMutPreprocessorOpts() {
217 return ensureOwned(Storage&: PPOpts);
218}
219
220AnalyzerOptions &CowCompilerInvocation::getMutAnalyzerOpts() {
221 return ensureOwned(Storage&: AnalyzerOpts);
222}
223
224MigratorOptions &CowCompilerInvocation::getMutMigratorOpts() {
225 return ensureOwned(Storage&: MigratorOpts);
226}
227
228APINotesOptions &CowCompilerInvocation::getMutAPINotesOpts() {
229 return ensureOwned(Storage&: APINotesOpts);
230}
231
232CodeGenOptions &CowCompilerInvocation::getMutCodeGenOpts() {
233 return ensureOwned(Storage&: CodeGenOpts);
234}
235
236FileSystemOptions &CowCompilerInvocation::getMutFileSystemOpts() {
237 return ensureOwned(Storage&: FSOpts);
238}
239
240FrontendOptions &CowCompilerInvocation::getMutFrontendOpts() {
241 return ensureOwned(Storage&: FrontendOpts);
242}
243
244ssaf::SSAFOptions &CowCompilerInvocation::getMutSSAFOpts() {
245 return ensureOwned(Storage&: SSAFOpts);
246}
247
248DependencyOutputOptions &CowCompilerInvocation::getMutDependencyOutputOpts() {
249 return ensureOwned(Storage&: DependencyOutputOpts);
250}
251
252PreprocessorOutputOptions &
253CowCompilerInvocation::getMutPreprocessorOutputOpts() {
254 return ensureOwned(Storage&: PreprocessorOutputOpts);
255}
256
257//===----------------------------------------------------------------------===//
258// Normalizers
259//===----------------------------------------------------------------------===//
260
261using ArgumentConsumer = CompilerInvocation::ArgumentConsumer;
262
263static llvm::StringRef lookupStrInTable(unsigned Offset) {
264 return getDriverOptTable().getStrTable()[Offset];
265}
266
267#define SIMPLE_ENUM_VALUE_TABLE
268#include "clang/Options/Options.inc"
269#undef SIMPLE_ENUM_VALUE_TABLE
270
271static std::optional<bool> normalizeSimpleFlag(OptSpecifier Opt,
272 unsigned TableIndex,
273 const ArgList &Args,
274 DiagnosticsEngine &Diags) {
275 if (Args.hasArg(Ids: Opt))
276 return true;
277 return std::nullopt;
278}
279
280static std::optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt,
281 unsigned,
282 const ArgList &Args,
283 DiagnosticsEngine &) {
284 if (Args.hasArg(Ids: Opt))
285 return false;
286 return std::nullopt;
287}
288
289/// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but
290/// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with
291/// unnecessary template instantiations and just ignore it with a variadic
292/// argument.
293static void denormalizeSimpleFlag(ArgumentConsumer Consumer,
294 unsigned SpellingOffset, Option::OptionClass,
295 unsigned, /*T*/...) {
296 Consumer(lookupStrInTable(Offset: SpellingOffset));
297}
298static void denormalizeSimpleFlag(ArgumentConsumer Consumer,
299 const Twine &Spelling, Option::OptionClass,
300 unsigned, /*T*/...) {
301 Consumer(Spelling);
302}
303
304template <typename T> static constexpr bool is_uint64_t_convertible() {
305 return !std::is_same_v<T, uint64_t> && llvm::is_integral_or_enum<T>::value;
306}
307
308template <typename T,
309 std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false>
310static auto makeFlagToValueNormalizer(T Value) {
311 return [Value](OptSpecifier Opt, unsigned, const ArgList &Args,
312 DiagnosticsEngine &) -> std::optional<T> {
313 if (Args.hasArg(Ids: Opt))
314 return Value;
315 return std::nullopt;
316 };
317}
318
319template <typename T,
320 std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false>
321static auto makeFlagToValueNormalizer(T Value) {
322 return makeFlagToValueNormalizer(Value: uint64_t(Value));
323}
324
325static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue,
326 OptSpecifier OtherOpt) {
327 return [Value, OtherValue,
328 OtherOpt](OptSpecifier Opt, unsigned, const ArgList &Args,
329 DiagnosticsEngine &) -> std::optional<bool> {
330 if (const Arg *A = Args.getLastArg(Ids: Opt, Ids: OtherOpt)) {
331 return A->getOption().matches(ID: Opt) ? Value : OtherValue;
332 }
333 return std::nullopt;
334 };
335}
336
337static auto makeBooleanOptionDenormalizer(bool Value) {
338 return [Value](ArgumentConsumer Consumer, unsigned SpellingOffset,
339 Option::OptionClass, unsigned, bool KeyPath) {
340 if (KeyPath == Value)
341 Consumer(lookupStrInTable(Offset: SpellingOffset));
342 };
343}
344
345static void denormalizeStringImpl(ArgumentConsumer Consumer,
346 const Twine &Spelling,
347 Option::OptionClass OptClass, unsigned,
348 const Twine &Value) {
349 switch (OptClass) {
350 case Option::SeparateClass:
351 case Option::JoinedOrSeparateClass:
352 case Option::JoinedAndSeparateClass:
353 Consumer(Spelling);
354 Consumer(Value);
355 break;
356 case Option::JoinedClass:
357 case Option::CommaJoinedClass:
358 Consumer(Spelling + Value);
359 break;
360 default:
361 llvm_unreachable("Cannot denormalize an option with option class "
362 "incompatible with string denormalization.");
363 }
364}
365
366template <typename T>
367static void
368denormalizeString(ArgumentConsumer Consumer, unsigned SpellingOffset,
369 Option::OptionClass OptClass, unsigned TableIndex, T Value) {
370 denormalizeStringImpl(Consumer, Spelling: lookupStrInTable(Offset: SpellingOffset), OptClass,
371 TableIndex, Value: Twine(Value));
372}
373
374template <typename T>
375static void denormalizeString(ArgumentConsumer Consumer, const Twine &Spelling,
376 Option::OptionClass OptClass, unsigned TableIndex,
377 T Value) {
378 denormalizeStringImpl(Consumer, Spelling, OptClass, TableIndex, Value: Twine(Value));
379}
380
381static std::optional<SimpleEnumValue>
382findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) {
383 for (int I = 0, E = Table.Size; I != E; ++I)
384 if (Name == Table.Table[I].Name)
385 return Table.Table[I];
386
387 return std::nullopt;
388}
389
390static std::optional<SimpleEnumValue>
391findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) {
392 for (int I = 0, E = Table.Size; I != E; ++I)
393 if (Value == Table.Table[I].Value)
394 return Table.Table[I];
395
396 return std::nullopt;
397}
398
399static std::optional<unsigned> normalizeSimpleEnum(OptSpecifier Opt,
400 unsigned TableIndex,
401 const ArgList &Args,
402 DiagnosticsEngine &Diags) {
403 assert(TableIndex < SimpleEnumValueTablesSize);
404 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex];
405
406 auto *Arg = Args.getLastArg(Ids: Opt);
407 if (!Arg)
408 return std::nullopt;
409
410 StringRef ArgValue = Arg->getValue();
411 if (auto MaybeEnumVal = findValueTableByName(Table, Name: ArgValue))
412 return MaybeEnumVal->Value;
413
414 Diags.Report(DiagID: diag::err_drv_invalid_value)
415 << Arg->getAsString(Args) << ArgValue;
416 return std::nullopt;
417}
418
419static void denormalizeSimpleEnumImpl(ArgumentConsumer Consumer,
420 unsigned SpellingOffset,
421 Option::OptionClass OptClass,
422 unsigned TableIndex, unsigned Value) {
423 assert(TableIndex < SimpleEnumValueTablesSize);
424 const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex];
425 if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) {
426 denormalizeString(Consumer, Spelling: lookupStrInTable(Offset: SpellingOffset), OptClass,
427 TableIndex, Value: MaybeEnumVal->Name);
428 } else {
429 llvm_unreachable("The simple enum value was not correctly defined in "
430 "the tablegen option description");
431 }
432}
433
434template <typename T>
435static void denormalizeSimpleEnum(ArgumentConsumer Consumer,
436 unsigned SpellingOffset,
437 Option::OptionClass OptClass,
438 unsigned TableIndex, T Value) {
439 return denormalizeSimpleEnumImpl(Consumer, SpellingOffset, OptClass,
440 TableIndex, Value: static_cast<unsigned>(Value));
441}
442
443static std::optional<std::string> normalizeString(OptSpecifier Opt,
444 int TableIndex,
445 const ArgList &Args,
446 DiagnosticsEngine &Diags) {
447 auto *Arg = Args.getLastArg(Ids: Opt);
448 if (!Arg)
449 return std::nullopt;
450 return std::string(Arg->getValue());
451}
452
453template <typename IntTy>
454static std::optional<IntTy> normalizeStringIntegral(OptSpecifier Opt, int,
455 const ArgList &Args,
456 DiagnosticsEngine &Diags) {
457 auto *Arg = Args.getLastArg(Ids: Opt);
458 if (!Arg)
459 return std::nullopt;
460 IntTy Res;
461 if (StringRef(Arg->getValue()).getAsInteger(0, Res)) {
462 Diags.Report(DiagID: diag::err_drv_invalid_int_value)
463 << Arg->getAsString(Args) << Arg->getValue();
464 return std::nullopt;
465 }
466 return Res;
467}
468
469static std::optional<std::vector<std::string>>
470normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args,
471 DiagnosticsEngine &) {
472 return Args.getAllArgValues(Id: Opt);
473}
474
475static void denormalizeStringVector(ArgumentConsumer Consumer,
476 unsigned SpellingOffset,
477 Option::OptionClass OptClass,
478 unsigned TableIndex,
479 const std::vector<std::string> &Values) {
480 switch (OptClass) {
481 case Option::CommaJoinedClass: {
482 std::string CommaJoinedValue;
483 if (!Values.empty()) {
484 CommaJoinedValue.append(str: Values.front());
485 for (const std::string &Value : llvm::drop_begin(RangeOrContainer: Values, N: 1)) {
486 CommaJoinedValue.append(s: ",");
487 CommaJoinedValue.append(str: Value);
488 }
489 }
490 denormalizeString(Consumer, SpellingOffset,
491 OptClass: Option::OptionClass::JoinedClass, TableIndex,
492 Value: CommaJoinedValue);
493 break;
494 }
495 case Option::JoinedClass:
496 case Option::SeparateClass:
497 case Option::JoinedOrSeparateClass:
498 for (const std::string &Value : Values)
499 denormalizeString(Consumer, SpellingOffset, OptClass, TableIndex, Value);
500 break;
501 default:
502 llvm_unreachable("Cannot denormalize an option with option class "
503 "incompatible with string vector denormalization.");
504 }
505}
506
507static std::optional<std::string> normalizeTriple(OptSpecifier Opt,
508 int TableIndex,
509 const ArgList &Args,
510 DiagnosticsEngine &Diags) {
511 auto *Arg = Args.getLastArg(Ids: Opt);
512 if (!Arg)
513 return std::nullopt;
514 return llvm::Triple::normalize(Str: Arg->getValue());
515}
516
517#define PARSE_OPTION_WITH_MARSHALLING( \
518 ARGS, DIAGS, PREFIX_TYPE, SPELLING_OFFSET, ID, KIND, GROUP, ALIAS, \
519 ALIASARGS, FLAGS, VISIBILITY, PARAM, HELPTEXT, HELPTEXTSFORVARIANTS, \
520 METAVAR, VALUES, SUBCOMMANDIDS_OFFSET, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
521 DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
522 TABLE_INDEX) \
523 if ((VISIBILITY) & options::CC1Option) { \
524 KEYPATH = static_cast<decltype(KEYPATH)>(DEFAULT_VALUE); \
525 if (IMPLIED_CHECK) \
526 KEYPATH = static_cast<decltype(KEYPATH)>(IMPLIED_VALUE); \
527 if (SHOULD_PARSE) \
528 if (auto MaybeValue = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS)) \
529 KEYPATH = static_cast<decltype(KEYPATH)>(*MaybeValue); \
530 }
531
532#define GENERATE_OPTION_WITH_MARSHALLING( \
533 CONSUMER, PREFIX_TYPE, SPELLING_OFFSET, ID, KIND, GROUP, ALIAS, ALIASARGS, \
534 FLAGS, VISIBILITY, PARAM, HELPTEXT, HELPTEXTSFORVARIANTS, METAVAR, VALUES, \
535 SUBCOMMANDIDS_OFFSET, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, DEFAULT_VALUE, \
536 IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, TABLE_INDEX) \
537 if ((VISIBILITY) & options::CC1Option) { \
538 if (ALWAYS_EMIT || (KEYPATH != static_cast<decltype(KEYPATH)>( \
539 ((IMPLIED_CHECK) ? (IMPLIED_VALUE) \
540 : (DEFAULT_VALUE))))) \
541 DENORMALIZER(CONSUMER, SPELLING_OFFSET, Option::KIND##Class, \
542 TABLE_INDEX, KEYPATH); \
543 }
544
545static StringRef GetInputKindName(InputKind IK);
546
547static bool FixupInvocation(CompilerInvocation &Invocation,
548 DiagnosticsEngine &Diags, const ArgList &Args,
549 InputKind IK) {
550 unsigned NumErrorsBefore = Diags.getNumErrors();
551
552 LangOptions &LangOpts = Invocation.getLangOpts();
553 CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts();
554 TargetOptions &TargetOpts = Invocation.getTargetOpts();
555 FrontendOptions &FrontendOpts = Invocation.getFrontendOpts();
556 CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument;
557 CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents;
558 CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents;
559 CodeGenOpts.DisableFree = FrontendOpts.DisableFree;
560 FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex;
561 if (FrontendOpts.ShowStats)
562 CodeGenOpts.ClearASTBeforeBackend = false;
563 LangOpts.SanitizeCoverage = CodeGenOpts.hasSanitizeCoverage();
564 LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables;
565 LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening;
566 LangOpts.CurrentModule = LangOpts.ModuleName;
567
568 llvm::Triple T(TargetOpts.Triple);
569 llvm::Triple::ArchType Arch = T.getArch();
570
571 CodeGenOpts.CodeModel = TargetOpts.CodeModel;
572 CodeGenOpts.LargeDataThreshold = TargetOpts.LargeDataThreshold;
573
574 if (CodeGenOpts.getExceptionHandling() !=
575 CodeGenOptions::ExceptionHandlingKind::None &&
576 T.isWindowsMSVCEnvironment())
577 Diags.Report(DiagID: diag::err_fe_invalid_exception_model)
578 << static_cast<unsigned>(CodeGenOpts.getExceptionHandling()) << T.str();
579
580 if (LangOpts.AppleKext && !LangOpts.CPlusPlus)
581 Diags.Report(DiagID: diag::warn_c_kext);
582
583 if (LangOpts.NewAlignOverride &&
584 !llvm::isPowerOf2_32(Value: LangOpts.NewAlignOverride)) {
585 Arg *A = Args.getLastArg(Ids: OPT_fnew_alignment_EQ);
586 Diags.Report(DiagID: diag::err_fe_invalid_alignment)
587 << A->getAsString(Args) << A->getValue();
588 LangOpts.NewAlignOverride = 0;
589 }
590
591 // The -f[no-]raw-string-literals option is only valid in C and in C++
592 // standards before C++11.
593 if (LangOpts.CPlusPlus11) {
594 if (Args.hasArg(Ids: OPT_fraw_string_literals, Ids: OPT_fno_raw_string_literals)) {
595 Args.claimAllArgs(Ids: OPT_fraw_string_literals, Ids: OPT_fno_raw_string_literals);
596 Diags.Report(DiagID: diag::warn_drv_fraw_string_literals_in_cxx11)
597 << bool(LangOpts.RawStringLiterals);
598 }
599
600 // Do not allow disabling raw string literals in C++11 or later.
601 LangOpts.RawStringLiterals = true;
602 }
603
604 if (Args.hasArg(Ids: OPT_freflection) && !LangOpts.CPlusPlus26) {
605 Diags.Report(DiagID: diag::err_drv_reflection_requires_cxx26)
606 << Args.getLastArg(Ids: options::OPT_freflection)->getAsString(Args);
607 }
608
609 LangOpts.NamedLoops =
610 Args.hasFlag(Pos: OPT_fnamed_loops, Neg: OPT_fno_named_loops, Default: LangOpts.C2y);
611
612 // Prevent the user from specifying both -fsycl-is-device and -fsycl-is-host.
613 if (LangOpts.SYCLIsDevice && LangOpts.SYCLIsHost)
614 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with) << "-fsycl-is-device"
615 << "-fsycl-is-host";
616
617 // SYCL requires C++; reject C inputs on both device and host.
618 if ((LangOpts.SYCLIsDevice || LangOpts.SYCLIsHost) && !LangOpts.CPlusPlus)
619 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
620 << GetInputKindName(IK) << "-fsycl";
621
622 if (Args.hasArg(Ids: OPT_fgnu89_inline) && LangOpts.CPlusPlus)
623 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
624 << "-fgnu89-inline" << GetInputKindName(IK);
625
626 if (Args.hasArg(Ids: OPT_hlsl_entrypoint) && !LangOpts.HLSL)
627 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
628 << "-hlsl-entry" << GetInputKindName(IK);
629
630 if (Args.hasArg(Ids: OPT_fdx_rootsignature_version) && !LangOpts.HLSL)
631 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
632 << "-fdx-rootsignature-version" << GetInputKindName(IK);
633
634 if (Args.hasArg(Ids: OPT_fdx_rootsignature_define) && !LangOpts.HLSL)
635 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
636 << "-fdx-rootsignature-define" << GetInputKindName(IK);
637
638 if (Args.hasArg(Ids: OPT_fgpu_allow_device_init) && !LangOpts.HIP)
639 Diags.Report(DiagID: diag::warn_ignored_hip_only_option)
640 << Args.getLastArg(Ids: OPT_fgpu_allow_device_init)->getAsString(Args);
641
642 if (Args.hasArg(Ids: OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP)
643 Diags.Report(DiagID: diag::warn_ignored_hip_only_option)
644 << Args.getLastArg(Ids: OPT_gpu_max_threads_per_block_EQ)->getAsString(Args);
645
646 // HLSL invocations should always have -Wconversion, -Wvector-conversion, and
647 // -Wmatrix-conversion by default.
648 if (LangOpts.HLSL) {
649 auto &Warnings = Invocation.getDiagnosticOpts().Warnings;
650 if (!llvm::is_contained(Range&: Warnings, Element: "conversion"))
651 Warnings.insert(position: Warnings.begin(), x: "conversion");
652 if (!llvm::is_contained(Range&: Warnings, Element: "vector-conversion"))
653 Warnings.insert(position: Warnings.begin(), x: "vector-conversion");
654 if (!llvm::is_contained(Range&: Warnings, Element: "matrix-conversion"))
655 Warnings.insert(position: Warnings.begin(), x: "matrix-conversion");
656 }
657
658 // When these options are used, the compiler is allowed to apply
659 // optimizations that may affect the final result. For example
660 // (x+y)+z is transformed to x+(y+z) but may not give the same
661 // final result; it's not value safe.
662 // Another example can be to simplify x/x to 1.0 but x could be 0.0, INF
663 // or NaN. Final result may then differ. An error is issued when the eval
664 // method is set with one of these options.
665 if (Args.hasArg(Ids: OPT_ffp_eval_method_EQ)) {
666 if (LangOpts.ApproxFunc)
667 Diags.Report(DiagID: diag::err_incompatible_fp_eval_method_options) << 0;
668 if (LangOpts.AllowFPReassoc)
669 Diags.Report(DiagID: diag::err_incompatible_fp_eval_method_options) << 1;
670 if (LangOpts.AllowRecip)
671 Diags.Report(DiagID: diag::err_incompatible_fp_eval_method_options) << 2;
672 }
673
674 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0.
675 // This option should be deprecated for CL > 1.0 because
676 // this option was added for compatibility with OpenCL 1.0.
677 if (Args.getLastArg(Ids: OPT_cl_strict_aliasing) &&
678 (LangOpts.getOpenCLCompatibleVersion() > 100))
679 Diags.Report(DiagID: diag::warn_option_invalid_ocl_version)
680 << LangOpts.getOpenCLVersionString()
681 << Args.getLastArg(Ids: OPT_cl_strict_aliasing)->getAsString(Args);
682
683 if (Arg *A = Args.getLastArg(Ids: OPT_fdefault_calling_conv_EQ)) {
684 auto DefaultCC = LangOpts.getDefaultCallingConv();
685
686 bool emitError = (DefaultCC == LangOptions::DCC_FastCall ||
687 DefaultCC == LangOptions::DCC_StdCall) &&
688 Arch != llvm::Triple::x86;
689 emitError |= (DefaultCC == LangOptions::DCC_VectorCall ||
690 DefaultCC == LangOptions::DCC_RegCall) &&
691 !T.isX86();
692 emitError |= DefaultCC == LangOptions::DCC_RtdCall && Arch != llvm::Triple::m68k;
693 if (emitError)
694 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
695 << A->getSpelling() << T.getTriple();
696 }
697
698 return Diags.getNumErrors() == NumErrorsBefore;
699}
700
701//===----------------------------------------------------------------------===//
702// Deserialization (from args)
703//===----------------------------------------------------------------------===//
704
705static void GenerateArg(ArgumentConsumer Consumer,
706 llvm::opt::OptSpecifier OptSpecifier) {
707 Option Opt = getDriverOptTable().getOption(Opt: OptSpecifier);
708 denormalizeSimpleFlag(Consumer, Spelling: Opt.getPrefixedName(),
709 Option::OptionClass::FlagClass, 0);
710}
711
712static void GenerateArg(ArgumentConsumer Consumer,
713 llvm::opt::OptSpecifier OptSpecifier,
714 const Twine &Value) {
715 Option Opt = getDriverOptTable().getOption(Opt: OptSpecifier);
716 denormalizeString(Consumer, Spelling: Opt.getPrefixedName(), OptClass: Opt.getKind(), TableIndex: 0, Value);
717}
718
719// Parse command line arguments into CompilerInvocation.
720using ParseFn =
721 llvm::function_ref<bool(CompilerInvocation &, ArrayRef<const char *>,
722 DiagnosticsEngine &, const char *)>;
723
724// Generate command line arguments from CompilerInvocation.
725using GenerateFn = llvm::function_ref<void(
726 CompilerInvocation &, SmallVectorImpl<const char *> &,
727 CompilerInvocation::StringAllocator)>;
728
729/// May perform round-trip of command line arguments. By default, the round-trip
730/// is enabled in assert builds. This can be overwritten at run-time via the
731/// "-round-trip-args" and "-no-round-trip-args" command line flags, or via the
732/// ForceRoundTrip parameter.
733///
734/// During round-trip, the command line arguments are parsed into a dummy
735/// CompilerInvocation, which is used to generate the command line arguments
736/// again. The real CompilerInvocation is then created by parsing the generated
737/// arguments, not the original ones. This (in combination with tests covering
738/// argument behavior) ensures the generated command line is complete (doesn't
739/// drop/mangle any arguments).
740///
741/// Finally, we check the command line that was used to create the real
742/// CompilerInvocation instance. By default, we compare it to the command line
743/// the real CompilerInvocation generates. This checks whether the generator is
744/// deterministic. If \p CheckAgainstOriginalInvocation is enabled, we instead
745/// compare it to the original command line to verify the original command-line
746/// was canonical and can round-trip exactly.
747static bool RoundTrip(ParseFn Parse, GenerateFn Generate,
748 CompilerInvocation &RealInvocation,
749 CompilerInvocation &DummyInvocation,
750 ArrayRef<const char *> CommandLineArgs,
751 DiagnosticsEngine &Diags, const char *Argv0,
752 bool CheckAgainstOriginalInvocation = false,
753 bool ForceRoundTrip = false) {
754#ifndef NDEBUG
755 bool DoRoundTripDefault = true;
756#else
757 bool DoRoundTripDefault = false;
758#endif
759
760 bool DoRoundTrip = DoRoundTripDefault;
761 if (ForceRoundTrip) {
762 DoRoundTrip = true;
763 } else {
764 for (const auto *Arg : CommandLineArgs) {
765 if (Arg == StringRef("-round-trip-args"))
766 DoRoundTrip = true;
767 if (Arg == StringRef("-no-round-trip-args"))
768 DoRoundTrip = false;
769 }
770 }
771
772 // If round-trip was not requested, simply run the parser with the real
773 // invocation diagnostics.
774 if (!DoRoundTrip)
775 return Parse(RealInvocation, CommandLineArgs, Diags, Argv0);
776
777 // Serializes quoted (and potentially escaped) arguments.
778 auto SerializeArgs = [](ArrayRef<const char *> Args) {
779 std::string Buffer;
780 llvm::raw_string_ostream OS(Buffer);
781 for (const char *Arg : Args) {
782 llvm::sys::printArg(OS, Arg, /*Quote=*/true);
783 OS << ' ';
784 }
785 return Buffer;
786 };
787
788 // Setup a dummy DiagnosticsEngine.
789 DiagnosticOptions DummyDiagOpts;
790 DiagnosticsEngine DummyDiags(DiagnosticIDs::create(), DummyDiagOpts);
791 DummyDiags.setClient(client: new TextDiagnosticBuffer());
792
793 // Run the first parse on the original arguments with the dummy invocation and
794 // diagnostics.
795 if (!Parse(DummyInvocation, CommandLineArgs, DummyDiags, Argv0) ||
796 DummyDiags.getNumWarnings() != 0) {
797 // If the first parse did not succeed, it must be user mistake (invalid
798 // command line arguments). We won't be able to generate arguments that
799 // would reproduce the same result. Let's fail again with the real
800 // invocation and diagnostics, so all side-effects of parsing are visible.
801 unsigned NumWarningsBefore = Diags.getNumWarnings();
802 auto Success = Parse(RealInvocation, CommandLineArgs, Diags, Argv0);
803 if (!Success || Diags.getNumWarnings() != NumWarningsBefore)
804 return Success;
805
806 // Parse with original options and diagnostics succeeded even though it
807 // shouldn't have. Something is off.
808 Diags.Report(DiagID: diag::err_cc1_round_trip_fail_then_ok);
809 Diags.Report(DiagID: diag::note_cc1_round_trip_original)
810 << SerializeArgs(CommandLineArgs);
811 return false;
812 }
813
814 // Setup string allocator.
815 llvm::BumpPtrAllocator Alloc;
816 llvm::StringSaver StringPool(Alloc);
817 auto SA = [&StringPool](const Twine &Arg) {
818 return StringPool.save(S: Arg).data();
819 };
820
821 // Generate arguments from the dummy invocation. If Generate is the
822 // inverse of Parse, the newly generated arguments must have the same
823 // semantics as the original.
824 SmallVector<const char *> GeneratedArgs;
825 Generate(DummyInvocation, GeneratedArgs, SA);
826
827 // Run the second parse, now on the generated arguments, and with the real
828 // invocation and diagnostics. The result is what we will end up using for the
829 // rest of compilation, so if Generate is not inverse of Parse, something down
830 // the line will break.
831 bool Success2 = Parse(RealInvocation, GeneratedArgs, Diags, Argv0);
832
833 // The first parse on original arguments succeeded, but second parse of
834 // generated arguments failed. Something must be wrong with the generator.
835 if (!Success2) {
836 Diags.Report(DiagID: diag::err_cc1_round_trip_ok_then_fail);
837 Diags.Report(DiagID: diag::note_cc1_round_trip_generated)
838 << 1 << SerializeArgs(GeneratedArgs);
839 return false;
840 }
841
842 SmallVector<const char *> ComparisonArgs;
843 if (CheckAgainstOriginalInvocation)
844 // Compare against original arguments.
845 ComparisonArgs.assign(in_start: CommandLineArgs.begin(), in_end: CommandLineArgs.end());
846 else
847 // Generate arguments again, this time from the options we will end up using
848 // for the rest of the compilation.
849 Generate(RealInvocation, ComparisonArgs, SA);
850
851 // Compares two lists of arguments.
852 auto Equal = [](const ArrayRef<const char *> A,
853 const ArrayRef<const char *> B) {
854 return llvm::equal(LRange: A, RRange: B, P: [](const char *AElem, const char *BElem) {
855 return StringRef(AElem) == StringRef(BElem);
856 });
857 };
858
859 // If we generated different arguments from what we assume are two
860 // semantically equivalent CompilerInvocations, the Generate function may
861 // be non-deterministic.
862 if (!Equal(GeneratedArgs, ComparisonArgs)) {
863 Diags.Report(DiagID: diag::err_cc1_round_trip_mismatch);
864 Diags.Report(DiagID: diag::note_cc1_round_trip_generated)
865 << 1 << SerializeArgs(GeneratedArgs);
866 Diags.Report(DiagID: diag::note_cc1_round_trip_generated)
867 << 2 << SerializeArgs(ComparisonArgs);
868 return false;
869 }
870
871 Diags.Report(DiagID: diag::remark_cc1_round_trip_generated)
872 << 1 << SerializeArgs(GeneratedArgs);
873 Diags.Report(DiagID: diag::remark_cc1_round_trip_generated)
874 << 2 << SerializeArgs(ComparisonArgs);
875
876 return Success2;
877}
878
879bool CompilerInvocation::checkCC1RoundTrip(ArrayRef<const char *> Args,
880 DiagnosticsEngine &Diags,
881 const char *Argv0) {
882 CompilerInvocation DummyInvocation1, DummyInvocation2;
883 return RoundTrip(
884 Parse: [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs,
885 DiagnosticsEngine &Diags, const char *Argv0) {
886 return CreateFromArgsImpl(Res&: Invocation, CommandLineArgs, Diags, Argv0);
887 },
888 Generate: [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args,
889 StringAllocator SA) {
890 Args.push_back(Elt: "-cc1");
891 Invocation.generateCC1CommandLine(Args, SA);
892 },
893 RealInvocation&: DummyInvocation1, DummyInvocation&: DummyInvocation2, CommandLineArgs: Args, Diags, Argv0,
894 /*CheckAgainstOriginalInvocation=*/true, /*ForceRoundTrip=*/true);
895}
896
897static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group,
898 OptSpecifier GroupWithValue,
899 std::vector<std::string> &Diagnostics) {
900 for (auto *A : Args.filtered(Ids: Group)) {
901 if (A->getOption().getKind() == Option::FlagClass) {
902 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add
903 // its name (minus the "W" or "R" at the beginning) to the diagnostics.
904 Diagnostics.push_back(
905 x: std::string(A->getOption().getName().drop_front(N: 1)));
906 } else if (A->getOption().matches(ID: GroupWithValue)) {
907 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic
908 // group. Add only the group name to the diagnostics.
909 Diagnostics.push_back(
910 x: std::string(A->getOption().getName().drop_front(N: 1).rtrim(Chars: "=-")));
911 } else {
912 // Otherwise, add its value (for OPT_W_Joined and similar).
913 Diagnostics.push_back(x: A->getValue());
914 }
915 }
916}
917
918// Parse the Static Analyzer configuration. If \p Diags is set to nullptr,
919// it won't verify the input.
920static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts,
921 DiagnosticsEngine *Diags);
922
923static void getAllNoBuiltinFuncValues(ArgList &Args,
924 std::vector<std::string> &Funcs) {
925 std::vector<std::string> Values = Args.getAllArgValues(Id: OPT_fno_builtin_);
926 auto BuiltinEnd = llvm::partition(Range&: Values, P: Builtin::Context::isBuiltinFunc);
927 Funcs.insert(position: Funcs.end(), first: Values.begin(), last: BuiltinEnd);
928}
929
930static void GenerateAnalyzerArgs(const AnalyzerOptions &Opts,
931 ArgumentConsumer Consumer) {
932 const AnalyzerOptions *AnalyzerOpts = &Opts;
933
934#define ANALYZER_OPTION_WITH_MARSHALLING(...) \
935 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
936#include "clang/Options/Options.inc"
937#undef ANALYZER_OPTION_WITH_MARSHALLING
938
939 if (Opts.AnalysisConstraintsOpt != RangeConstraintsModel) {
940 switch (Opts.AnalysisConstraintsOpt) {
941#define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
942 case NAME##Model: \
943 GenerateArg(Consumer, OPT_analyzer_constraints, CMDFLAG); \
944 break;
945#include "clang/StaticAnalyzer/Core/Analyses.def"
946 default:
947 llvm_unreachable("Tried to generate unknown analysis constraint.");
948 }
949 }
950
951 if (Opts.AnalysisDiagOpt != PD_HTML) {
952 switch (Opts.AnalysisDiagOpt) {
953#define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \
954 case PD_##NAME: \
955 GenerateArg(Consumer, OPT_analyzer_output, CMDFLAG); \
956 break;
957#include "clang/StaticAnalyzer/Core/Analyses.def"
958 default:
959 llvm_unreachable("Tried to generate unknown analysis diagnostic client.");
960 }
961 }
962
963 if (Opts.AnalysisPurgeOpt != PurgeStmt) {
964 switch (Opts.AnalysisPurgeOpt) {
965#define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \
966 case NAME: \
967 GenerateArg(Consumer, OPT_analyzer_purge, CMDFLAG); \
968 break;
969#include "clang/StaticAnalyzer/Core/Analyses.def"
970 default:
971 llvm_unreachable("Tried to generate unknown analysis purge mode.");
972 }
973 }
974
975 if (Opts.InliningMode != NoRedundancy) {
976 switch (Opts.InliningMode) {
977#define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \
978 case NAME: \
979 GenerateArg(Consumer, OPT_analyzer_inlining_mode, CMDFLAG); \
980 break;
981#include "clang/StaticAnalyzer/Core/Analyses.def"
982 default:
983 llvm_unreachable("Tried to generate unknown analysis inlining mode.");
984 }
985 }
986
987 for (const auto &CP : Opts.CheckersAndPackages) {
988 OptSpecifier Opt =
989 CP.second ? OPT_analyzer_checker : OPT_analyzer_disable_checker;
990 GenerateArg(Consumer, OptSpecifier: Opt, Value: CP.first);
991 }
992
993 AnalyzerOptions ConfigOpts;
994 parseAnalyzerConfigs(AnOpts&: ConfigOpts, Diags: nullptr);
995
996 // Sort options by key to avoid relying on StringMap iteration order.
997 SmallVector<std::pair<StringRef, StringRef>, 4> SortedConfigOpts;
998 for (const auto &C : Opts.Config)
999 SortedConfigOpts.emplace_back(Args: C.getKey(), Args: C.getValue());
1000 llvm::sort(C&: SortedConfigOpts, Comp: llvm::less_first());
1001
1002 for (const auto &[Key, Value] : SortedConfigOpts) {
1003 // Don't generate anything that came from parseAnalyzerConfigs. It would be
1004 // redundant and may not be valid on the command line.
1005 auto Entry = ConfigOpts.Config.find(Key);
1006 if (Entry != ConfigOpts.Config.end() && Entry->getValue() == Value)
1007 continue;
1008
1009 GenerateArg(Consumer, OptSpecifier: OPT_analyzer_config, Value: Key + "=" + Value);
1010 }
1011
1012 // Nothing to generate for FullCompilerInvocation.
1013}
1014
1015static void GenerateSSAFArgs(const ssaf::SSAFOptions &Opts,
1016 ArgumentConsumer Consumer) {
1017 const ssaf::SSAFOptions *SSAFOpts = &Opts;
1018
1019#define SSAF_OPTION_WITH_MARSHALLING(...) \
1020 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
1021#include "clang/Options/Options.inc"
1022#undef SSAF_OPTION_WITH_MARSHALLING
1023}
1024
1025static bool ParseSSAFArgs(ssaf::SSAFOptions &Opts, ArgList &Args,
1026 DiagnosticsEngine &Diags) {
1027 unsigned NumErrorsBefore = Diags.getNumErrors();
1028
1029 ssaf::SSAFOptions *SSAFOpts = &Opts;
1030
1031#define SSAF_OPTION_WITH_MARSHALLING(...) \
1032 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
1033#include "clang/Options/Options.inc"
1034#undef SSAF_OPTION_WITH_MARSHALLING
1035
1036 return Diags.getNumErrors() == NumErrorsBefore;
1037}
1038
1039static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
1040 DiagnosticsEngine &Diags) {
1041 unsigned NumErrorsBefore = Diags.getNumErrors();
1042
1043 AnalyzerOptions *AnalyzerOpts = &Opts;
1044
1045#define ANALYZER_OPTION_WITH_MARSHALLING(...) \
1046 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
1047#include "clang/Options/Options.inc"
1048#undef ANALYZER_OPTION_WITH_MARSHALLING
1049
1050 if (Arg *A = Args.getLastArg(Ids: OPT_analyzer_constraints)) {
1051 StringRef Name = A->getValue();
1052 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
1053#define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
1054 .Case(CMDFLAG, NAME##Model)
1055#include "clang/StaticAnalyzer/Core/Analyses.def"
1056 .Default(Value: NumConstraints);
1057 if (Value == NumConstraints) {
1058 Diags.Report(DiagID: diag::err_drv_invalid_value)
1059 << A->getAsString(Args) << Name;
1060 } else {
1061#ifndef LLVM_WITH_Z3
1062 if (Value == AnalysisConstraints::Z3ConstraintsModel) {
1063 Diags.Report(DiagID: diag::err_analyzer_not_built_with_z3);
1064 }
1065#endif // LLVM_WITH_Z3
1066 Opts.AnalysisConstraintsOpt = Value;
1067 }
1068 }
1069
1070 if (Arg *A = Args.getLastArg(Ids: OPT_analyzer_output)) {
1071 StringRef Name = A->getValue();
1072 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
1073#define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \
1074 .Case(CMDFLAG, PD_##NAME)
1075#include "clang/StaticAnalyzer/Core/Analyses.def"
1076 .Default(Value: NUM_ANALYSIS_DIAG_CLIENTS);
1077 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) {
1078 Diags.Report(DiagID: diag::err_drv_invalid_value)
1079 << A->getAsString(Args) << Name;
1080 } else {
1081 Opts.AnalysisDiagOpt = Value;
1082 }
1083 }
1084
1085 if (Arg *A = Args.getLastArg(Ids: OPT_analyzer_purge)) {
1086 StringRef Name = A->getValue();
1087 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name)
1088#define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \
1089 .Case(CMDFLAG, NAME)
1090#include "clang/StaticAnalyzer/Core/Analyses.def"
1091 .Default(Value: NumPurgeModes);
1092 if (Value == NumPurgeModes) {
1093 Diags.Report(DiagID: diag::err_drv_invalid_value)
1094 << A->getAsString(Args) << Name;
1095 } else {
1096 Opts.AnalysisPurgeOpt = Value;
1097 }
1098 }
1099
1100 if (Arg *A = Args.getLastArg(Ids: OPT_analyzer_inlining_mode)) {
1101 StringRef Name = A->getValue();
1102 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name)
1103#define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \
1104 .Case(CMDFLAG, NAME)
1105#include "clang/StaticAnalyzer/Core/Analyses.def"
1106 .Default(Value: NumInliningModes);
1107 if (Value == NumInliningModes) {
1108 Diags.Report(DiagID: diag::err_drv_invalid_value)
1109 << A->getAsString(Args) << Name;
1110 } else {
1111 Opts.InliningMode = Value;
1112 }
1113 }
1114
1115 Opts.CheckersAndPackages.clear();
1116 for (const Arg *A :
1117 Args.filtered(Ids: OPT_analyzer_checker, Ids: OPT_analyzer_disable_checker)) {
1118 A->claim();
1119 bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker;
1120 // We can have a list of comma separated checker names, e.g:
1121 // '-analyzer-checker=cocoa,unix'
1122 StringRef CheckerAndPackageList = A->getValue();
1123 SmallVector<StringRef, 16> CheckersAndPackages;
1124 CheckerAndPackageList.split(A&: CheckersAndPackages, Separator: ",");
1125 for (const StringRef &CheckerOrPackage : CheckersAndPackages)
1126 Opts.CheckersAndPackages.emplace_back(args: std::string(CheckerOrPackage),
1127 args&: IsEnabled);
1128 }
1129
1130 // Go through the analyzer configuration options.
1131 for (const auto *A : Args.filtered(Ids: OPT_analyzer_config)) {
1132
1133 // We can have a list of comma separated config names, e.g:
1134 // '-analyzer-config key1=val1,key2=val2'
1135 StringRef configList = A->getValue();
1136 SmallVector<StringRef, 4> configVals;
1137 configList.split(A&: configVals, Separator: ",");
1138 for (const auto &configVal : configVals) {
1139 StringRef key, val;
1140 std::tie(args&: key, args&: val) = configVal.split(Separator: "=");
1141 if (val.empty()) {
1142 Diags.Report(Loc: SourceLocation(),
1143 DiagID: diag::err_analyzer_config_no_value) << configVal;
1144 break;
1145 }
1146 if (val.contains(C: '=')) {
1147 Diags.Report(Loc: SourceLocation(),
1148 DiagID: diag::err_analyzer_config_multiple_values)
1149 << configVal;
1150 break;
1151 }
1152
1153 // TODO: Check checker options too, possibly in CheckerRegistry.
1154 // Leave unknown non-checker configs unclaimed.
1155 if (!key.contains(Other: ":") && Opts.isUnknownAnalyzerConfig(Name: key)) {
1156 if (Opts.ShouldEmitErrorsOnInvalidConfigValue)
1157 Diags.Report(DiagID: diag::err_analyzer_config_unknown) << key;
1158 continue;
1159 }
1160
1161 A->claim();
1162 Opts.Config[key] = std::string(val);
1163 }
1164 }
1165
1166 if (Opts.ShouldEmitErrorsOnInvalidConfigValue)
1167 parseAnalyzerConfigs(AnOpts&: Opts, Diags: &Diags);
1168 else
1169 parseAnalyzerConfigs(AnOpts&: Opts, Diags: nullptr);
1170
1171 llvm::raw_string_ostream os(Opts.FullCompilerInvocation);
1172 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) {
1173 if (i != 0)
1174 os << " ";
1175 os << Args.getArgString(Index: i);
1176 }
1177
1178 return Diags.getNumErrors() == NumErrorsBefore;
1179}
1180
1181static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config,
1182 StringRef OptionName, StringRef DefaultVal) {
1183 return Config.insert(KV: {OptionName, std::string(DefaultVal)}).first->second;
1184}
1185
1186static void initOption(AnalyzerOptions::ConfigTable &Config,
1187 DiagnosticsEngine *Diags,
1188 StringRef &OptionField, StringRef Name,
1189 StringRef DefaultVal) {
1190 // String options may be known to invalid (e.g. if the expected string is a
1191 // file name, but the file does not exist), those will have to be checked in
1192 // parseConfigs.
1193 OptionField = getStringOption(Config, OptionName: Name, DefaultVal);
1194}
1195
1196static void initOption(AnalyzerOptions::ConfigTable &Config,
1197 DiagnosticsEngine *Diags,
1198 bool &OptionField, StringRef Name, bool DefaultVal) {
1199 auto PossiblyInvalidVal =
1200 llvm::StringSwitch<std::optional<bool>>(
1201 getStringOption(Config, OptionName: Name, DefaultVal: (DefaultVal ? "true" : "false")))
1202 .Case(S: "true", Value: true)
1203 .Case(S: "false", Value: false)
1204 .Default(Value: std::nullopt);
1205
1206 if (!PossiblyInvalidVal) {
1207 if (Diags)
1208 Diags->Report(DiagID: diag::err_analyzer_config_invalid_input)
1209 << Name << "a boolean";
1210 else
1211 OptionField = DefaultVal;
1212 } else
1213 OptionField = *PossiblyInvalidVal;
1214}
1215
1216static void initOption(AnalyzerOptions::ConfigTable &Config,
1217 DiagnosticsEngine *Diags,
1218 unsigned &OptionField, StringRef Name,
1219 unsigned DefaultVal) {
1220
1221 OptionField = DefaultVal;
1222 bool HasFailed = getStringOption(Config, OptionName: Name, DefaultVal: std::to_string(val: DefaultVal))
1223 .getAsInteger(Radix: 0, Result&: OptionField);
1224 if (Diags && HasFailed)
1225 Diags->Report(DiagID: diag::err_analyzer_config_invalid_input)
1226 << Name << "an unsigned";
1227}
1228
1229static void initOption(AnalyzerOptions::ConfigTable &Config,
1230 DiagnosticsEngine *Diags,
1231 PositiveAnalyzerOption &OptionField, StringRef Name,
1232 unsigned DefaultVal) {
1233 auto Parsed = PositiveAnalyzerOption::create(
1234 Str: getStringOption(Config, OptionName: Name, DefaultVal: std::to_string(val: DefaultVal)));
1235 if (Parsed.has_value()) {
1236 OptionField = Parsed.value();
1237 return;
1238 }
1239 if (Diags && !Parsed.has_value())
1240 Diags->Report(DiagID: diag::err_analyzer_config_invalid_input)
1241 << Name << "a positive";
1242
1243 OptionField = DefaultVal;
1244}
1245
1246static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts,
1247 DiagnosticsEngine *Diags) {
1248 // TODO: There's no need to store the entire configtable, it'd be plenty
1249 // enough to store checker options.
1250
1251#define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \
1252 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL);
1253#define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(...)
1254#include "clang/StaticAnalyzer/Core/AnalyzerOptions.def"
1255
1256 assert(AnOpts.UserMode == "shallow" || AnOpts.UserMode == "deep");
1257 const bool InShallowMode = AnOpts.UserMode == "shallow";
1258
1259#define ANALYZER_OPTION(...)
1260#define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \
1261 SHALLOW_VAL, DEEP_VAL) \
1262 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, \
1263 InShallowMode ? SHALLOW_VAL : DEEP_VAL);
1264#include "clang/StaticAnalyzer/Core/AnalyzerOptions.def"
1265
1266 // At this point, AnalyzerOptions is configured. Let's validate some options.
1267
1268 // FIXME: Here we try to validate the silenced checkers or packages are valid.
1269 // The current approach only validates the registered checkers which does not
1270 // contain the runtime enabled checkers and optimally we would validate both.
1271 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) {
1272 std::vector<StringRef> Checkers =
1273 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true);
1274 std::vector<StringRef> Packages =
1275 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true);
1276
1277 SmallVector<StringRef, 16> CheckersAndPackages;
1278 AnOpts.RawSilencedCheckersAndPackages.split(A&: CheckersAndPackages, Separator: ";");
1279
1280 for (const StringRef &CheckerOrPackage : CheckersAndPackages) {
1281 if (Diags) {
1282 bool IsChecker = CheckerOrPackage.contains(C: '.');
1283 bool IsValidName = IsChecker
1284 ? llvm::is_contained(Range&: Checkers, Element: CheckerOrPackage)
1285 : llvm::is_contained(Range&: Packages, Element: CheckerOrPackage);
1286
1287 if (!IsValidName)
1288 Diags->Report(DiagID: diag::err_unknown_analyzer_checker_or_package)
1289 << CheckerOrPackage;
1290 }
1291
1292 AnOpts.SilencedCheckersAndPackages.emplace_back(args: CheckerOrPackage);
1293 }
1294 }
1295
1296 if (!Diags)
1297 return;
1298
1299 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions)
1300 Diags->Report(DiagID: diag::err_analyzer_config_invalid_input)
1301 << "track-conditions-debug" << "'track-conditions' to also be enabled";
1302}
1303
1304/// Generate a remark argument. This is an inverse of `ParseOptimizationRemark`.
1305static void
1306GenerateOptimizationRemark(ArgumentConsumer Consumer, OptSpecifier OptEQ,
1307 StringRef Name,
1308 const CodeGenOptions::OptRemark &Remark) {
1309 if (Remark.hasValidPattern()) {
1310 GenerateArg(Consumer, OptSpecifier: OptEQ, Value: Remark.Pattern);
1311 } else if (Remark.Kind == CodeGenOptions::RK_Enabled) {
1312 GenerateArg(Consumer, OptSpecifier: OPT_R_Joined, Value: Name);
1313 } else if (Remark.Kind == CodeGenOptions::RK_Disabled) {
1314 GenerateArg(Consumer, OptSpecifier: OPT_R_Joined, Value: StringRef("no-") + Name);
1315 }
1316}
1317
1318/// Parse a remark command line argument. It may be missing, disabled/enabled by
1319/// '-R[no-]group' or specified with a regular expression by '-Rgroup=regexp'.
1320/// On top of that, it can be disabled/enabled globally by '-R[no-]everything'.
1321static CodeGenOptions::OptRemark
1322ParseOptimizationRemark(DiagnosticsEngine &Diags, ArgList &Args,
1323 OptSpecifier OptEQ, StringRef Name) {
1324 CodeGenOptions::OptRemark Result;
1325
1326 auto InitializeResultPattern = [&Diags, &Args, &Result](const Arg *A,
1327 StringRef Pattern) {
1328 Result.Pattern = Pattern.str();
1329
1330 std::string RegexError;
1331 Result.Regex = std::make_shared<llvm::Regex>(args&: Result.Pattern);
1332 if (!Result.Regex->isValid(Error&: RegexError)) {
1333 Diags.Report(DiagID: diag::err_drv_optimization_remark_pattern)
1334 << RegexError << A->getAsString(Args);
1335 return false;
1336 }
1337
1338 return true;
1339 };
1340
1341 for (Arg *A : Args) {
1342 if (A->getOption().matches(ID: OPT_R_Joined)) {
1343 StringRef Value = A->getValue();
1344
1345 if (Value == Name)
1346 Result.Kind = CodeGenOptions::RK_Enabled;
1347 else if (Value == "everything")
1348 Result.Kind = CodeGenOptions::RK_EnabledEverything;
1349 else if (Value.split(Separator: '-') == std::make_pair(x: StringRef("no"), y&: Name))
1350 Result.Kind = CodeGenOptions::RK_Disabled;
1351 else if (Value == "no-everything")
1352 Result.Kind = CodeGenOptions::RK_DisabledEverything;
1353 else
1354 continue;
1355
1356 if (Result.Kind == CodeGenOptions::RK_Disabled ||
1357 Result.Kind == CodeGenOptions::RK_DisabledEverything) {
1358 Result.Pattern = "";
1359 Result.Regex = nullptr;
1360 } else {
1361 InitializeResultPattern(A, ".*");
1362 }
1363 } else if (A->getOption().matches(ID: OptEQ)) {
1364 Result.Kind = CodeGenOptions::RK_WithPattern;
1365 if (!InitializeResultPattern(A, A->getValue()))
1366 return CodeGenOptions::OptRemark();
1367 }
1368 }
1369
1370 return Result;
1371}
1372
1373static bool parseDiagnosticLevelMask(StringRef FlagName,
1374 const std::vector<std::string> &Levels,
1375 DiagnosticsEngine &Diags,
1376 DiagnosticLevelMask &M) {
1377 bool Success = true;
1378 for (const auto &Level : Levels) {
1379 DiagnosticLevelMask const PM =
1380 llvm::StringSwitch<DiagnosticLevelMask>(Level)
1381 .Case(S: "note", Value: DiagnosticLevelMask::Note)
1382 .Case(S: "remark", Value: DiagnosticLevelMask::Remark)
1383 .Case(S: "warning", Value: DiagnosticLevelMask::Warning)
1384 .Case(S: "error", Value: DiagnosticLevelMask::Error)
1385 .Default(Value: DiagnosticLevelMask::None);
1386 if (PM == DiagnosticLevelMask::None) {
1387 Success = false;
1388 Diags.Report(DiagID: diag::err_drv_invalid_value) << FlagName << Level;
1389 }
1390 M = M | PM;
1391 }
1392 return Success;
1393}
1394
1395static void parseSanitizerKinds(StringRef FlagName,
1396 const std::vector<std::string> &Sanitizers,
1397 DiagnosticsEngine &Diags, SanitizerSet &S) {
1398 for (const auto &Sanitizer : Sanitizers) {
1399 SanitizerMask K = parseSanitizerValue(Value: Sanitizer, /*AllowGroups=*/false);
1400 if (K == SanitizerMask())
1401 Diags.Report(DiagID: diag::err_drv_invalid_value) << FlagName << Sanitizer;
1402 else
1403 S.set(K, Value: true);
1404 }
1405}
1406
1407static SmallVector<StringRef, 4> serializeSanitizerKinds(SanitizerSet S) {
1408 SmallVector<StringRef, 4> Values;
1409 serializeSanitizerSet(Set: S, Values);
1410 return Values;
1411}
1412
1413static SanitizerMaskCutoffs
1414parseSanitizerWeightedKinds(StringRef FlagName,
1415 const std::vector<std::string> &Sanitizers,
1416 DiagnosticsEngine &Diags) {
1417 SanitizerMaskCutoffs Cutoffs;
1418 for (const auto &Sanitizer : Sanitizers) {
1419 if (!parseSanitizerWeightedValue(Value: Sanitizer, /*AllowGroups=*/false, Cutoffs))
1420 Diags.Report(DiagID: diag::err_drv_invalid_value) << FlagName << Sanitizer;
1421 }
1422 return Cutoffs;
1423}
1424
1425static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle,
1426 ArgList &Args, DiagnosticsEngine &D,
1427 XRayInstrSet &S) {
1428 llvm::SmallVector<StringRef, 2> BundleParts;
1429 llvm::SplitString(Source: Bundle, OutFragments&: BundleParts, Delimiters: ",");
1430 for (const auto &B : BundleParts) {
1431 auto Mask = parseXRayInstrValue(Value: B);
1432 if (Mask == XRayInstrKind::None)
1433 if (B != "none")
1434 D.Report(DiagID: diag::err_drv_invalid_value) << FlagName << Bundle;
1435 else
1436 S.Mask = Mask;
1437 else if (Mask == XRayInstrKind::All)
1438 S.Mask = Mask;
1439 else
1440 S.set(K: Mask, Value: true);
1441 }
1442}
1443
1444static std::string serializeXRayInstrumentationBundle(const XRayInstrSet &S) {
1445 llvm::SmallVector<StringRef, 2> BundleParts;
1446 serializeXRayInstrValue(Set: S, Values&: BundleParts);
1447 std::string Buffer;
1448 llvm::raw_string_ostream OS(Buffer);
1449 llvm::interleave(c: BundleParts, os&: OS, each_fn: [&OS](StringRef Part) { OS << Part; }, separator: ",");
1450 return Buffer;
1451}
1452
1453void CompilerInvocation::setDefaultPointerAuthOptions(
1454 PointerAuthOptions &Opts, const LangOptions &LangOpts,
1455 const llvm::Triple &Triple) {
1456 assert(Triple.getArch() == llvm::Triple::aarch64);
1457 if (LangOpts.PointerAuthCalls) {
1458 using Key = PointerAuthSchema::ARM8_3Key;
1459 using Discrimination = PointerAuthSchema::Discrimination;
1460 // If you change anything here, be sure to update <ptrauth.h>.
1461 Opts.FunctionPointers = PointerAuthSchema(
1462 Key::ASIA, false,
1463 LangOpts.PointerAuthFunctionTypeDiscrimination ? Discrimination::Type
1464 : Discrimination::None);
1465
1466 Opts.CXXVTablePointers = PointerAuthSchema(
1467 Key::ASDA, LangOpts.PointerAuthVTPtrAddressDiscrimination,
1468 LangOpts.PointerAuthVTPtrTypeDiscrimination ? Discrimination::Type
1469 : Discrimination::None);
1470
1471 if (LangOpts.PointerAuthTypeInfoVTPtrDiscrimination)
1472 Opts.CXXTypeInfoVTablePointer =
1473 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant,
1474 StdTypeInfoVTablePointerConstantDiscrimination);
1475 else
1476 Opts.CXXTypeInfoVTablePointer =
1477 PointerAuthSchema(Key::ASDA, false, Discrimination::None);
1478
1479 Opts.CXXVTTVTablePointers =
1480 PointerAuthSchema(Key::ASDA, false, Discrimination::None);
1481 Opts.CXXVirtualFunctionPointers = Opts.CXXVirtualVariadicFunctionPointers =
1482 PointerAuthSchema(Key::ASIA, true, Discrimination::Decl);
1483 Opts.CXXMemberFunctionPointers =
1484 PointerAuthSchema(Key::ASIA, false, Discrimination::Type);
1485
1486 Opts.BlockInvocationFunctionPointers =
1487 PointerAuthSchema(Key::ASIA, true, Discrimination::None);
1488 Opts.BlockHelperFunctionPointers =
1489 PointerAuthSchema(Key::ASIA, true, Discrimination::None);
1490 Opts.BlockByrefHelperFunctionPointers =
1491 PointerAuthSchema(Key::ASIA, true, Discrimination::None);
1492 if (LangOpts.PointerAuthBlockDescriptorPointers)
1493 Opts.BlockDescriptorPointers =
1494 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant,
1495 BlockDescriptorConstantDiscriminator);
1496
1497 Opts.ObjCMethodListFunctionPointers =
1498 PointerAuthSchema(Key::ASIA, true, Discrimination::None);
1499 Opts.ObjCMethodListPointer =
1500 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant,
1501 MethodListPointerConstantDiscriminator);
1502 if (LangOpts.PointerAuthObjcIsa) {
1503 Opts.ObjCIsaPointers =
1504 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant,
1505 IsaPointerConstantDiscriminator);
1506 Opts.ObjCSuperPointers =
1507 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant,
1508 SuperPointerConstantDiscriminator);
1509 }
1510
1511 if (LangOpts.PointerAuthObjcClassROPointers)
1512 Opts.ObjCClassROPointers =
1513 PointerAuthSchema(Key::ASDA, true, Discrimination::Constant,
1514 ClassROConstantDiscriminator);
1515 }
1516 Opts.ReturnAddresses = LangOpts.PointerAuthReturns;
1517 Opts.AuthTraps = LangOpts.PointerAuthAuthTraps;
1518 Opts.IndirectGotos = LangOpts.PointerAuthIndirectGotos;
1519 Opts.AArch64JumpTableHardening = LangOpts.AArch64JumpTableHardening;
1520}
1521
1522static void parsePointerAuthOptions(PointerAuthOptions &Opts,
1523 const LangOptions &LangOpts,
1524 const llvm::Triple &Triple,
1525 DiagnosticsEngine &Diags) {
1526 if (!LangOpts.PointerAuthCalls && !LangOpts.PointerAuthReturns &&
1527 !LangOpts.PointerAuthAuthTraps && !LangOpts.PointerAuthIndirectGotos &&
1528 !LangOpts.AArch64JumpTableHardening)
1529 return;
1530
1531 CompilerInvocation::setDefaultPointerAuthOptions(Opts, LangOpts, Triple);
1532}
1533
1534void CompilerInvocationBase::GenerateCodeGenArgs(const CodeGenOptions &Opts,
1535 ArgumentConsumer Consumer,
1536 const llvm::Triple &T,
1537 const std::string &OutputFile,
1538 const LangOptions *LangOpts) {
1539 const CodeGenOptions &CodeGenOpts = Opts;
1540
1541 if (Opts.OptimizationLevel == 0)
1542 GenerateArg(Consumer, OptSpecifier: OPT_O0);
1543 else
1544 GenerateArg(Consumer, OptSpecifier: OPT_O, Value: Twine(Opts.OptimizationLevel));
1545
1546#define CODEGEN_OPTION_WITH_MARSHALLING(...) \
1547 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
1548#include "clang/Options/Options.inc"
1549#undef CODEGEN_OPTION_WITH_MARSHALLING
1550
1551 if (Opts.OptimizationLevel > 0) {
1552 if (Opts.Inlining == CodeGenOptions::NormalInlining)
1553 GenerateArg(Consumer, OptSpecifier: OPT_finline_functions);
1554 else if (Opts.Inlining == CodeGenOptions::OnlyHintInlining)
1555 GenerateArg(Consumer, OptSpecifier: OPT_finline_hint_functions);
1556 else if (Opts.Inlining == CodeGenOptions::OnlyAlwaysInlining)
1557 GenerateArg(Consumer, OptSpecifier: OPT_fno_inline);
1558 }
1559
1560 if (Opts.DirectAccessExternalData && LangOpts->PICLevel != 0)
1561 GenerateArg(Consumer, OptSpecifier: OPT_fdirect_access_external_data);
1562 else if (!Opts.DirectAccessExternalData && LangOpts->PICLevel == 0)
1563 GenerateArg(Consumer, OptSpecifier: OPT_fno_direct_access_external_data);
1564
1565 std::optional<StringRef> DebugInfoVal;
1566 switch (Opts.DebugInfo) {
1567 case llvm::codegenoptions::DebugLineTablesOnly:
1568 DebugInfoVal = "line-tables-only";
1569 break;
1570 case llvm::codegenoptions::DebugDirectivesOnly:
1571 DebugInfoVal = "line-directives-only";
1572 break;
1573 case llvm::codegenoptions::DebugInfoConstructor:
1574 DebugInfoVal = "constructor";
1575 break;
1576 case llvm::codegenoptions::LimitedDebugInfo:
1577 DebugInfoVal = "limited";
1578 break;
1579 case llvm::codegenoptions::FullDebugInfo:
1580 DebugInfoVal = "standalone";
1581 break;
1582 case llvm::codegenoptions::UnusedTypeInfo:
1583 DebugInfoVal = "unused-types";
1584 break;
1585 case llvm::codegenoptions::NoDebugInfo: // default value
1586 DebugInfoVal = std::nullopt;
1587 break;
1588 case llvm::codegenoptions::LocTrackingOnly: // implied value
1589 DebugInfoVal = std::nullopt;
1590 break;
1591 }
1592 if (DebugInfoVal)
1593 GenerateArg(Consumer, OptSpecifier: OPT_debug_info_kind_EQ, Value: *DebugInfoVal);
1594
1595 for (const auto &Prefix : Opts.DebugPrefixMap)
1596 GenerateArg(Consumer, OptSpecifier: OPT_fdebug_prefix_map_EQ,
1597 Value: Prefix.first + "=" + Prefix.second);
1598
1599 for (const auto &Prefix : Opts.CoveragePrefixMap)
1600 GenerateArg(Consumer, OptSpecifier: OPT_fcoverage_prefix_map_EQ,
1601 Value: Prefix.first + "=" + Prefix.second);
1602
1603 if (Opts.NewStructPathTBAA)
1604 GenerateArg(Consumer, OptSpecifier: OPT_new_struct_path_tbaa);
1605
1606 if (Opts.OptimizeSize == 1)
1607 GenerateArg(Consumer, OptSpecifier: OPT_O, Value: "s");
1608 else if (Opts.OptimizeSize == 2)
1609 GenerateArg(Consumer, OptSpecifier: OPT_O, Value: "z");
1610
1611 // SimplifyLibCalls is set only in the absence of -fno-builtin and
1612 // -ffreestanding. We'll consider that when generating them.
1613
1614 // NoBuiltinFuncs are generated by LangOptions.
1615
1616 if (Opts.UnrollLoops && Opts.OptimizationLevel <= 1)
1617 GenerateArg(Consumer, OptSpecifier: OPT_funroll_loops);
1618 else if (!Opts.UnrollLoops && Opts.OptimizationLevel > 1)
1619 GenerateArg(Consumer, OptSpecifier: OPT_fno_unroll_loops);
1620
1621 if (Opts.InterchangeLoops)
1622 GenerateArg(Consumer, OptSpecifier: OPT_floop_interchange);
1623 else
1624 GenerateArg(Consumer, OptSpecifier: OPT_fno_loop_interchange);
1625
1626 if (Opts.FuseLoops)
1627 GenerateArg(Consumer, OptSpecifier: OPT_fexperimental_loop_fusion);
1628
1629 if (!Opts.BinutilsVersion.empty())
1630 GenerateArg(Consumer, OptSpecifier: OPT_fbinutils_version_EQ, Value: Opts.BinutilsVersion);
1631
1632 if (Opts.DebugNameTable ==
1633 static_cast<unsigned>(llvm::DICompileUnit::DebugNameTableKind::GNU))
1634 GenerateArg(Consumer, OptSpecifier: OPT_ggnu_pubnames);
1635 else if (Opts.DebugNameTable ==
1636 static_cast<unsigned>(
1637 llvm::DICompileUnit::DebugNameTableKind::Default))
1638 GenerateArg(Consumer, OptSpecifier: OPT_gpubnames);
1639
1640 if (Opts.DebugTemplateAlias)
1641 GenerateArg(Consumer, OptSpecifier: OPT_gtemplate_alias);
1642
1643 auto TNK = Opts.getDebugSimpleTemplateNames();
1644 if (TNK != llvm::codegenoptions::DebugTemplateNamesKind::Full) {
1645 if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Simple)
1646 GenerateArg(Consumer, OptSpecifier: OPT_gsimple_template_names_EQ, Value: "simple");
1647 else if (TNK == llvm::codegenoptions::DebugTemplateNamesKind::Mangled)
1648 GenerateArg(Consumer, OptSpecifier: OPT_gsimple_template_names_EQ, Value: "mangled");
1649 }
1650 // ProfileInstrumentUsePath is marshalled automatically, no need to generate
1651 // it or PGOUseInstrumentor.
1652
1653 if (Opts.TimePasses) {
1654 if (Opts.TimePassesPerRun)
1655 GenerateArg(Consumer, OptSpecifier: OPT_ftime_report_EQ, Value: "per-pass-run");
1656 else
1657 GenerateArg(Consumer, OptSpecifier: OPT_ftime_report);
1658
1659 if (Opts.TimePassesJson)
1660 GenerateArg(Consumer, OptSpecifier: OPT_ftime_report_json);
1661 }
1662
1663 if (Opts.PrepareForLTO && !Opts.PrepareForThinLTO)
1664 GenerateArg(Consumer, OptSpecifier: OPT_flto_EQ, Value: "full");
1665
1666 if (Opts.PrepareForThinLTO)
1667 GenerateArg(Consumer, OptSpecifier: OPT_flto_EQ, Value: "thin");
1668
1669 if (!Opts.ThinLTOIndexFile.empty())
1670 GenerateArg(Consumer, OptSpecifier: OPT_fthinlto_index_EQ, Value: Opts.ThinLTOIndexFile);
1671
1672 if (Opts.SaveTempsFilePrefix == OutputFile)
1673 GenerateArg(Consumer, OptSpecifier: OPT_save_temps_EQ, Value: "obj");
1674
1675 StringRef MemProfileBasename("memprof.profraw");
1676 if (!Opts.MemoryProfileOutput.empty()) {
1677 if (Opts.MemoryProfileOutput == MemProfileBasename) {
1678 GenerateArg(Consumer, OptSpecifier: OPT_fmemory_profile);
1679 } else {
1680 size_t ArgLength =
1681 Opts.MemoryProfileOutput.size() - MemProfileBasename.size();
1682 GenerateArg(Consumer, OptSpecifier: OPT_fmemory_profile_EQ,
1683 Value: Opts.MemoryProfileOutput.substr(pos: 0, n: ArgLength));
1684 }
1685 }
1686
1687 if (memcmp(s1: Opts.CoverageVersion, s2: "0000", n: 4))
1688 GenerateArg(Consumer, OptSpecifier: OPT_coverage_version_EQ,
1689 Value: StringRef(Opts.CoverageVersion, 4));
1690
1691 // TODO: Check if we need to generate arguments stored in CmdArgs. (Namely
1692 // '-fembed_bitcode', which does not map to any CompilerInvocation field and
1693 // won't be generated.)
1694
1695 if (Opts.XRayInstrumentationBundle.Mask != XRayInstrKind::All) {
1696 std::string InstrBundle =
1697 serializeXRayInstrumentationBundle(S: Opts.XRayInstrumentationBundle);
1698 if (!InstrBundle.empty())
1699 GenerateArg(Consumer, OptSpecifier: OPT_fxray_instrumentation_bundle, Value: InstrBundle);
1700 }
1701
1702 if (Opts.CFProtectionReturn && Opts.CFProtectionBranch)
1703 GenerateArg(Consumer, OptSpecifier: OPT_fcf_protection_EQ, Value: "full");
1704 else if (Opts.CFProtectionReturn)
1705 GenerateArg(Consumer, OptSpecifier: OPT_fcf_protection_EQ, Value: "return");
1706 else if (Opts.CFProtectionBranch)
1707 GenerateArg(Consumer, OptSpecifier: OPT_fcf_protection_EQ, Value: "branch");
1708
1709 if (Opts.CFProtectionBranch) {
1710 switch (Opts.getCFBranchLabelScheme()) {
1711 case CFBranchLabelSchemeKind::Default:
1712 break;
1713#define CF_BRANCH_LABEL_SCHEME(Kind, FlagVal) \
1714 case CFBranchLabelSchemeKind::Kind: \
1715 GenerateArg(Consumer, OPT_mcf_branch_label_scheme_EQ, #FlagVal); \
1716 break;
1717#include "clang/Basic/CFProtectionOptions.def"
1718 }
1719 }
1720
1721 if (Opts.FunctionReturnThunks)
1722 GenerateArg(Consumer, OptSpecifier: OPT_mfunction_return_EQ, Value: "thunk-extern");
1723
1724 for (const auto &F : Opts.LinkBitcodeFiles) {
1725 bool Builtint = F.LinkFlags == llvm::Linker::Flags::LinkOnlyNeeded &&
1726 F.PropagateAttrs && F.Internalize;
1727 GenerateArg(Consumer,
1728 OptSpecifier: Builtint ? OPT_mlink_builtin_bitcode : OPT_mlink_bitcode_file,
1729 Value: F.Filename);
1730 }
1731
1732 if (Opts.EmulatedTLS)
1733 GenerateArg(Consumer, OptSpecifier: OPT_femulated_tls);
1734
1735 if (Opts.FPDenormalMode != llvm::DenormalMode::getIEEE())
1736 GenerateArg(Consumer, OptSpecifier: OPT_fdenormal_fp_math_EQ, Value: Opts.FPDenormalMode.str());
1737
1738 if ((Opts.FPDenormalMode != Opts.FP32DenormalMode) ||
1739 (Opts.FP32DenormalMode != llvm::DenormalMode::getIEEE()))
1740 GenerateArg(Consumer, OptSpecifier: OPT_fdenormal_fp_math_f32_EQ,
1741 Value: Opts.FP32DenormalMode.str());
1742
1743 if (Opts.StructReturnConvention == CodeGenOptions::SRCK_OnStack) {
1744 OptSpecifier Opt =
1745 T.isPPC32() ? OPT_maix_struct_return : OPT_fpcc_struct_return;
1746 GenerateArg(Consumer, OptSpecifier: Opt);
1747 } else if (Opts.StructReturnConvention == CodeGenOptions::SRCK_InRegs) {
1748 OptSpecifier Opt =
1749 T.isPPC32() ? OPT_msvr4_struct_return : OPT_freg_struct_return;
1750 GenerateArg(Consumer, OptSpecifier: Opt);
1751 }
1752
1753 if (Opts.EnableAIXExtendedAltivecABI)
1754 GenerateArg(Consumer, OptSpecifier: OPT_mabi_EQ_vec_extabi);
1755
1756 if (Opts.XCOFFReadOnlyPointers)
1757 GenerateArg(Consumer, OptSpecifier: OPT_mxcoff_roptr);
1758
1759 if (!Opts.OptRecordPasses.empty())
1760 GenerateArg(Consumer, OptSpecifier: OPT_opt_record_passes, Value: Opts.OptRecordPasses);
1761
1762 if (!Opts.OptRecordFormat.empty())
1763 GenerateArg(Consumer, OptSpecifier: OPT_opt_record_format, Value: Opts.OptRecordFormat);
1764
1765 GenerateOptimizationRemark(Consumer, OptEQ: OPT_Rpass_EQ, Name: "pass",
1766 Remark: Opts.OptimizationRemark);
1767
1768 GenerateOptimizationRemark(Consumer, OptEQ: OPT_Rpass_missed_EQ, Name: "pass-missed",
1769 Remark: Opts.OptimizationRemarkMissed);
1770
1771 GenerateOptimizationRemark(Consumer, OptEQ: OPT_Rpass_analysis_EQ, Name: "pass-analysis",
1772 Remark: Opts.OptimizationRemarkAnalysis);
1773
1774 GenerateArg(Consumer, OptSpecifier: OPT_fdiagnostics_hotness_threshold_EQ,
1775 Value: Opts.DiagnosticsHotnessThreshold
1776 ? Twine(*Opts.DiagnosticsHotnessThreshold)
1777 : "auto");
1778
1779 GenerateArg(Consumer, OptSpecifier: OPT_fdiagnostics_misexpect_tolerance_EQ,
1780 Value: Twine(*Opts.DiagnosticsMisExpectTolerance));
1781
1782 for (StringRef Sanitizer : serializeSanitizerKinds(S: Opts.SanitizeRecover))
1783 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_recover_EQ, Value: Sanitizer);
1784
1785 for (StringRef Sanitizer : serializeSanitizerKinds(S: Opts.SanitizeTrap))
1786 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_trap_EQ, Value: Sanitizer);
1787
1788 for (StringRef Sanitizer :
1789 serializeSanitizerKinds(S: Opts.SanitizeMergeHandlers))
1790 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_merge_handlers_EQ, Value: Sanitizer);
1791
1792 SmallVector<std::string, 4> Values;
1793 serializeSanitizerMaskCutoffs(Cutoffs: Opts.SanitizeSkipHotCutoffs, Values);
1794 for (std::string Sanitizer : Values)
1795 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_skip_hot_cutoff_EQ, Value: Sanitizer);
1796
1797 if (Opts.AllowRuntimeCheckSkipHotCutoff) {
1798 GenerateArg(Consumer, OptSpecifier: OPT_fallow_runtime_check_skip_hot_cutoff_EQ,
1799 Value: std::to_string(val: *Opts.AllowRuntimeCheckSkipHotCutoff));
1800 }
1801
1802 for (StringRef Sanitizer :
1803 serializeSanitizerKinds(S: Opts.SanitizeAnnotateDebugInfo))
1804 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_annotate_debug_info_EQ, Value: Sanitizer);
1805
1806 if (!Opts.EmitVersionIdentMetadata)
1807 GenerateArg(Consumer, OptSpecifier: OPT_Qn);
1808
1809 switch (Opts.FiniteLoops) {
1810 case CodeGenOptions::FiniteLoopsKind::Language:
1811 break;
1812 case CodeGenOptions::FiniteLoopsKind::Always:
1813 GenerateArg(Consumer, OptSpecifier: OPT_ffinite_loops);
1814 break;
1815 case CodeGenOptions::FiniteLoopsKind::Never:
1816 GenerateArg(Consumer, OptSpecifier: OPT_fno_finite_loops);
1817 break;
1818 }
1819
1820 if (Opts.StaticClosure)
1821 GenerateArg(Consumer, OptSpecifier: OPT_static_libclosure);
1822}
1823
1824bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args,
1825 InputKind IK,
1826 DiagnosticsEngine &Diags,
1827 const llvm::Triple &T,
1828 const std::string &OutputFile,
1829 const LangOptions &LangOptsRef) {
1830 unsigned NumErrorsBefore = Diags.getNumErrors();
1831
1832 Opts.OptimizationLevel = getOptimizationLevel(Args, IK, Diags);
1833
1834 // The key paths of codegen options defined in Options.td start with
1835 // "CodeGenOpts.". Let's provide the expected variable name and type.
1836 CodeGenOptions &CodeGenOpts = Opts;
1837 // Some codegen options depend on language options. Let's provide the expected
1838 // variable name and type.
1839 const LangOptions *LangOpts = &LangOptsRef;
1840
1841#define CODEGEN_OPTION_WITH_MARSHALLING(...) \
1842 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
1843#include "clang/Options/Options.inc"
1844#undef CODEGEN_OPTION_WITH_MARSHALLING
1845
1846 // At O0 we want to fully disable inlining outside of cases marked with
1847 // 'alwaysinline' that are required for correctness.
1848 if (Opts.OptimizationLevel == 0) {
1849 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining);
1850 } else if (const Arg *A = Args.getLastArg(Ids: options::OPT_finline_functions,
1851 Ids: options::OPT_finline_hint_functions,
1852 Ids: options::OPT_fno_inline_functions,
1853 Ids: options::OPT_fno_inline)) {
1854 // Explicit inlining flags can disable some or all inlining even at
1855 // optimization levels above zero.
1856 if (A->getOption().matches(ID: options::OPT_finline_functions))
1857 Opts.setInlining(CodeGenOptions::NormalInlining);
1858 else if (A->getOption().matches(ID: options::OPT_finline_hint_functions))
1859 Opts.setInlining(CodeGenOptions::OnlyHintInlining);
1860 else
1861 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining);
1862 } else {
1863 Opts.setInlining(CodeGenOptions::NormalInlining);
1864 }
1865
1866 // PIC defaults to -fno-direct-access-external-data while non-PIC defaults to
1867 // -fdirect-access-external-data.
1868 Opts.DirectAccessExternalData =
1869 Args.hasArg(Ids: OPT_fdirect_access_external_data) ||
1870 (!Args.hasArg(Ids: OPT_fno_direct_access_external_data) &&
1871 LangOpts->PICLevel == 0);
1872
1873 if (Arg *A = Args.getLastArg(Ids: OPT_debug_info_kind_EQ)) {
1874 unsigned Val =
1875 llvm::StringSwitch<unsigned>(A->getValue())
1876 .Case(S: "line-tables-only", Value: llvm::codegenoptions::DebugLineTablesOnly)
1877 .Case(S: "line-directives-only",
1878 Value: llvm::codegenoptions::DebugDirectivesOnly)
1879 .Case(S: "constructor", Value: llvm::codegenoptions::DebugInfoConstructor)
1880 .Case(S: "limited", Value: llvm::codegenoptions::LimitedDebugInfo)
1881 .Case(S: "standalone", Value: llvm::codegenoptions::FullDebugInfo)
1882 .Case(S: "unused-types", Value: llvm::codegenoptions::UnusedTypeInfo)
1883 .Default(Value: ~0U);
1884 if (Val == ~0U)
1885 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args)
1886 << A->getValue();
1887 else
1888 Opts.setDebugInfo(static_cast<llvm::codegenoptions::DebugInfoKind>(Val));
1889 }
1890
1891 // If -fuse-ctor-homing is set and limited debug info is already on, then use
1892 // constructor homing, and vice versa for -fno-use-ctor-homing.
1893 if (const Arg *A =
1894 Args.getLastArg(Ids: OPT_fuse_ctor_homing, Ids: OPT_fno_use_ctor_homing)) {
1895 if (A->getOption().matches(ID: OPT_fuse_ctor_homing) &&
1896 Opts.getDebugInfo() == llvm::codegenoptions::LimitedDebugInfo)
1897 Opts.setDebugInfo(llvm::codegenoptions::DebugInfoConstructor);
1898 if (A->getOption().matches(ID: OPT_fno_use_ctor_homing) &&
1899 Opts.getDebugInfo() == llvm::codegenoptions::DebugInfoConstructor)
1900 Opts.setDebugInfo(llvm::codegenoptions::LimitedDebugInfo);
1901 }
1902
1903 for (const auto &Arg : Args.getAllArgValues(Id: OPT_fdebug_prefix_map_EQ)) {
1904 auto Split = StringRef(Arg).split(Separator: '=');
1905 Opts.DebugPrefixMap.emplace_back(Args&: Split.first, Args&: Split.second);
1906 }
1907
1908 for (const auto &Arg : Args.getAllArgValues(Id: OPT_fcoverage_prefix_map_EQ)) {
1909 auto Split = StringRef(Arg).split(Separator: '=');
1910 Opts.CoveragePrefixMap.emplace_back(Args&: Split.first, Args&: Split.second);
1911 }
1912
1913 const llvm::Triple::ArchType DebugEntryValueArchs[] = {
1914 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64,
1915 llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips,
1916 llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el,
1917 llvm::Triple::riscv32, llvm::Triple::riscv64};
1918
1919 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() &&
1920 llvm::is_contained(Range: DebugEntryValueArchs, Element: T.getArch()))
1921 Opts.EmitCallSiteInfo = true;
1922
1923 if (!Opts.EnableDIPreservationVerify && Opts.DIBugsReportFilePath.size()) {
1924 Diags.Report(DiagID: diag::warn_ignoring_verify_debuginfo_preserve_export)
1925 << Opts.DIBugsReportFilePath;
1926 Opts.DIBugsReportFilePath = "";
1927 }
1928
1929 Opts.NewStructPathTBAA = !Args.hasArg(Ids: OPT_no_struct_path_tbaa) &&
1930 Args.hasArg(Ids: OPT_new_struct_path_tbaa);
1931 Opts.OptimizeSize = getOptimizationLevelSize(Args);
1932 Opts.SimplifyLibCalls = !LangOpts->NoBuiltin;
1933 if (Opts.SimplifyLibCalls)
1934 Opts.NoBuiltinFuncs = LangOpts->NoBuiltinFuncs;
1935 Opts.UnrollLoops =
1936 Args.hasFlag(Pos: OPT_funroll_loops, Neg: OPT_fno_unroll_loops,
1937 Default: (Opts.OptimizationLevel > 1));
1938 Opts.InterchangeLoops =
1939 Args.hasFlag(Pos: OPT_floop_interchange, Neg: OPT_fno_loop_interchange, Default: false);
1940 Opts.FuseLoops = Args.hasFlag(Pos: OPT_fexperimental_loop_fusion,
1941 Neg: OPT_fno_experimental_loop_fusion, Default: false);
1942 Opts.BinutilsVersion =
1943 std::string(Args.getLastArgValue(Id: OPT_fbinutils_version_EQ));
1944
1945 Opts.DebugTemplateAlias = Args.hasArg(Ids: OPT_gtemplate_alias);
1946
1947 Opts.DebugNameTable = static_cast<unsigned>(
1948 Args.hasArg(Ids: OPT_ggnu_pubnames)
1949 ? llvm::DICompileUnit::DebugNameTableKind::GNU
1950 : Args.hasArg(Ids: OPT_gpubnames)
1951 ? llvm::DICompileUnit::DebugNameTableKind::Default
1952 : llvm::DICompileUnit::DebugNameTableKind::None);
1953 if (const Arg *A = Args.getLastArg(Ids: OPT_gsimple_template_names_EQ)) {
1954 StringRef Value = A->getValue();
1955 if (Value != "simple" && Value != "mangled")
1956 Diags.Report(DiagID: diag::err_drv_unsupported_option_argument)
1957 << A->getSpelling() << A->getValue();
1958 Opts.setDebugSimpleTemplateNames(
1959 StringRef(A->getValue()) == "simple"
1960 ? llvm::codegenoptions::DebugTemplateNamesKind::Simple
1961 : llvm::codegenoptions::DebugTemplateNamesKind::Mangled);
1962 }
1963
1964 if (Args.hasArg(Ids: OPT_ftime_report, Ids: OPT_ftime_report_EQ, Ids: OPT_ftime_report_json,
1965 Ids: OPT_stats_file_timers)) {
1966 Opts.TimePasses = true;
1967
1968 // -ftime-report= is only for new pass manager.
1969 if (const Arg *EQ = Args.getLastArg(Ids: OPT_ftime_report_EQ)) {
1970 StringRef Val = EQ->getValue();
1971 if (Val == "per-pass")
1972 Opts.TimePassesPerRun = false;
1973 else if (Val == "per-pass-run")
1974 Opts.TimePassesPerRun = true;
1975 else
1976 Diags.Report(DiagID: diag::err_drv_invalid_value)
1977 << EQ->getAsString(Args) << EQ->getValue();
1978 }
1979
1980 if (Args.getLastArg(Ids: OPT_ftime_report_json))
1981 Opts.TimePassesJson = true;
1982 }
1983
1984 Opts.PrepareForLTO = false;
1985 Opts.PrepareForThinLTO = false;
1986 if (Arg *A = Args.getLastArg(Ids: OPT_flto_EQ)) {
1987 Opts.PrepareForLTO = true;
1988 StringRef S = A->getValue();
1989 if (S == "thin")
1990 Opts.PrepareForThinLTO = true;
1991 else if (S != "full")
1992 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args) << S;
1993 if (Args.hasArg(Ids: OPT_funified_lto))
1994 Opts.PrepareForThinLTO = true;
1995 }
1996 if (Arg *A = Args.getLastArg(Ids: OPT_fthinlto_index_EQ)) {
1997 if (IK.getLanguage() != Language::LLVM_IR)
1998 Diags.Report(DiagID: diag::err_drv_argument_only_allowed_with)
1999 << A->getAsString(Args) << "-x ir";
2000 Opts.ThinLTOIndexFile =
2001 std::string(Args.getLastArgValue(Id: OPT_fthinlto_index_EQ));
2002 }
2003 if (Arg *A = Args.getLastArg(Ids: OPT_save_temps_EQ))
2004 Opts.SaveTempsFilePrefix =
2005 llvm::StringSwitch<std::string>(A->getValue())
2006 .Case(S: "obj", Value: OutputFile)
2007 .Default(Value: llvm::sys::path::filename(path: OutputFile).str());
2008
2009 // The memory profile runtime appends the pid to make this name more unique.
2010 const char *MemProfileBasename = "memprof.profraw";
2011 if (Args.hasArg(Ids: OPT_fmemory_profile_EQ)) {
2012 SmallString<128> Path(Args.getLastArgValue(Id: OPT_fmemory_profile_EQ));
2013 llvm::sys::path::append(path&: Path, a: MemProfileBasename);
2014 Opts.MemoryProfileOutput = std::string(Path);
2015 } else if (Args.hasArg(Ids: OPT_fmemory_profile))
2016 Opts.MemoryProfileOutput = MemProfileBasename;
2017
2018 if (Opts.CoverageNotesFile.size() || Opts.CoverageDataFile.size()) {
2019 if (Args.hasArg(Ids: OPT_coverage_version_EQ)) {
2020 StringRef CoverageVersion = Args.getLastArgValue(Id: OPT_coverage_version_EQ);
2021 if (CoverageVersion.size() != 4) {
2022 Diags.Report(DiagID: diag::err_drv_invalid_value)
2023 << Args.getLastArg(Ids: OPT_coverage_version_EQ)->getAsString(Args)
2024 << CoverageVersion;
2025 } else {
2026 memcpy(dest: Opts.CoverageVersion, src: CoverageVersion.data(), n: 4);
2027 }
2028 }
2029 }
2030 // FIXME: For backend options that are not yet recorded as function
2031 // attributes in the IR, keep track of them so we can embed them in a
2032 // separate data section and use them when building the bitcode.
2033 for (const auto &A : Args) {
2034 // Do not encode output and input.
2035 if (A->getOption().getID() == options::OPT_o ||
2036 A->getOption().getID() == options::OPT_INPUT ||
2037 A->getOption().getID() == options::OPT_x ||
2038 A->getOption().getID() == options::OPT_fembed_bitcode ||
2039 A->getOption().matches(ID: options::OPT_W_Group))
2040 continue;
2041 ArgStringList ASL;
2042 A->render(Args, Output&: ASL);
2043 for (const auto &arg : ASL) {
2044 StringRef ArgStr(arg);
2045 llvm::append_range(C&: Opts.CmdArgs, R&: ArgStr);
2046 // using \00 to separate each commandline options.
2047 Opts.CmdArgs.push_back(x: '\0');
2048 }
2049 }
2050
2051 auto XRayInstrBundles =
2052 Args.getAllArgValues(Id: OPT_fxray_instrumentation_bundle);
2053 if (XRayInstrBundles.empty())
2054 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All;
2055 else
2056 for (const auto &A : XRayInstrBundles)
2057 parseXRayInstrumentationBundle(FlagName: "-fxray-instrumentation-bundle=", Bundle: A, Args,
2058 D&: Diags, S&: Opts.XRayInstrumentationBundle);
2059
2060 if (const Arg *A = Args.getLastArg(Ids: OPT_fcf_protection_EQ)) {
2061 StringRef Name = A->getValue();
2062 if (Name == "full") {
2063 Opts.CFProtectionReturn = 1;
2064 Opts.CFProtectionBranch = 1;
2065 } else if (Name == "return")
2066 Opts.CFProtectionReturn = 1;
2067 else if (Name == "branch")
2068 Opts.CFProtectionBranch = 1;
2069 else if (Name != "none")
2070 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
2071 }
2072
2073 if (Opts.CFProtectionBranch && T.isRISCV()) {
2074 if (const Arg *A = Args.getLastArg(Ids: OPT_mcf_branch_label_scheme_EQ)) {
2075 const auto Scheme =
2076 llvm::StringSwitch<CFBranchLabelSchemeKind>(A->getValue())
2077#define CF_BRANCH_LABEL_SCHEME(Kind, FlagVal) \
2078 .Case(#FlagVal, CFBranchLabelSchemeKind::Kind)
2079#include "clang/Basic/CFProtectionOptions.def"
2080 .Default(Value: CFBranchLabelSchemeKind::Default);
2081 if (Scheme != CFBranchLabelSchemeKind::Default)
2082 Opts.setCFBranchLabelScheme(Scheme);
2083 else
2084 Diags.Report(DiagID: diag::err_drv_invalid_value)
2085 << A->getAsString(Args) << A->getValue();
2086 }
2087 }
2088
2089 if (const Arg *A = Args.getLastArg(Ids: OPT_mfunction_return_EQ)) {
2090 auto Val = llvm::StringSwitch<llvm::FunctionReturnThunksKind>(A->getValue())
2091 .Case(S: "keep", Value: llvm::FunctionReturnThunksKind::Keep)
2092 .Case(S: "thunk-extern", Value: llvm::FunctionReturnThunksKind::Extern)
2093 .Default(Value: llvm::FunctionReturnThunksKind::Invalid);
2094 // SystemZ might want to add support for "expolines."
2095 if (!T.isX86())
2096 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
2097 << A->getSpelling() << T.getTriple();
2098 else if (Val == llvm::FunctionReturnThunksKind::Invalid)
2099 Diags.Report(DiagID: diag::err_drv_invalid_value)
2100 << A->getAsString(Args) << A->getValue();
2101 else if (Val == llvm::FunctionReturnThunksKind::Extern &&
2102 Args.getLastArgValue(Id: OPT_mcmodel_EQ) == "large")
2103 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
2104 << A->getAsString(Args)
2105 << Args.getLastArg(Ids: OPT_mcmodel_EQ)->getAsString(Args);
2106 else
2107 Opts.FunctionReturnThunks = static_cast<unsigned>(Val);
2108 }
2109
2110 for (auto *A :
2111 Args.filtered(Ids: OPT_mlink_bitcode_file, Ids: OPT_mlink_builtin_bitcode)) {
2112 CodeGenOptions::BitcodeFileToLink F;
2113 F.Filename = A->getValue();
2114 if (A->getOption().matches(ID: OPT_mlink_builtin_bitcode)) {
2115 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded;
2116 // When linking CUDA bitcode, propagate function attributes so that
2117 // e.g. libdevice gets fast-math attrs if we're building with fast-math.
2118 F.PropagateAttrs = true;
2119 F.Internalize = true;
2120 }
2121 Opts.LinkBitcodeFiles.push_back(x: F);
2122 }
2123
2124 if (Arg *A = Args.getLastArg(Ids: OPT_fdenormal_fp_math_EQ)) {
2125 StringRef Val = A->getValue();
2126 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Str: Val);
2127 Opts.FP32DenormalMode = Opts.FPDenormalMode;
2128 if (!Opts.FPDenormalMode.isValid())
2129 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
2130 }
2131
2132 if (Arg *A = Args.getLastArg(Ids: OPT_fdenormal_fp_math_f32_EQ)) {
2133 StringRef Val = A->getValue();
2134 Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Str: Val);
2135 if (!Opts.FP32DenormalMode.isValid())
2136 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
2137 }
2138
2139 // X86_32 has -fppc-struct-return and -freg-struct-return.
2140 // PPC32 has -maix-struct-return and -msvr4-struct-return.
2141 if (Arg *A =
2142 Args.getLastArg(Ids: OPT_fpcc_struct_return, Ids: OPT_freg_struct_return,
2143 Ids: OPT_maix_struct_return, Ids: OPT_msvr4_struct_return)) {
2144 // TODO: We might want to consider enabling these options on AIX in the
2145 // future.
2146 if (T.isOSAIX())
2147 Diags.Report(DiagID: diag::err_drv_unsupported_opt_for_target)
2148 << A->getSpelling() << T.str();
2149
2150 const Option &O = A->getOption();
2151 if (O.matches(ID: OPT_fpcc_struct_return) ||
2152 O.matches(ID: OPT_maix_struct_return)) {
2153 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack);
2154 } else {
2155 assert(O.matches(OPT_freg_struct_return) ||
2156 O.matches(OPT_msvr4_struct_return));
2157 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs);
2158 }
2159 }
2160
2161 if (Arg *A = Args.getLastArg(Ids: OPT_mxcoff_roptr)) {
2162 if (!T.isOSAIX())
2163 Diags.Report(DiagID: diag::err_drv_unsupported_opt_for_target)
2164 << A->getSpelling() << T.str();
2165
2166 // Since the storage mapping class is specified per csect,
2167 // without using data sections, it is less effective to use read-only
2168 // pointers. Using read-only pointers may cause other RO variables in the
2169 // same csect to become RW when the linker acts upon `-bforceimprw`;
2170 // therefore, we require that separate data sections
2171 // are used when `-mxcoff-roptr` is in effect. We respect the setting of
2172 // data-sections since we have not found reasons to do otherwise that
2173 // overcome the user surprise of not respecting the setting.
2174 if (!Args.hasFlag(Pos: OPT_fdata_sections, Neg: OPT_fno_data_sections, Default: false))
2175 Diags.Report(DiagID: diag::err_roptr_requires_data_sections);
2176
2177 Opts.XCOFFReadOnlyPointers = true;
2178 }
2179
2180 if (Arg *A = Args.getLastArg(Ids: OPT_mabi_EQ_quadword_atomics)) {
2181 if (!T.isOSAIX() || T.isPPC32())
2182 Diags.Report(DiagID: diag::err_drv_unsupported_opt_for_target)
2183 << A->getSpelling() << T.str();
2184 }
2185
2186 bool NeedLocTracking = false;
2187
2188 if (!Opts.OptRecordFile.empty())
2189 NeedLocTracking = true;
2190
2191 if (Arg *A = Args.getLastArg(Ids: OPT_opt_record_passes)) {
2192 Opts.OptRecordPasses = A->getValue();
2193 NeedLocTracking = true;
2194 }
2195
2196 if (Arg *A = Args.getLastArg(Ids: OPT_opt_record_format)) {
2197 Opts.OptRecordFormat = A->getValue();
2198 NeedLocTracking = true;
2199 }
2200
2201 Opts.OptimizationRemark =
2202 ParseOptimizationRemark(Diags, Args, OptEQ: OPT_Rpass_EQ, Name: "pass");
2203
2204 Opts.OptimizationRemarkMissed =
2205 ParseOptimizationRemark(Diags, Args, OptEQ: OPT_Rpass_missed_EQ, Name: "pass-missed");
2206
2207 Opts.OptimizationRemarkAnalysis = ParseOptimizationRemark(
2208 Diags, Args, OptEQ: OPT_Rpass_analysis_EQ, Name: "pass-analysis");
2209
2210 NeedLocTracking |= Opts.OptimizationRemark.hasValidPattern() ||
2211 Opts.OptimizationRemarkMissed.hasValidPattern() ||
2212 Opts.OptimizationRemarkAnalysis.hasValidPattern();
2213
2214 bool UsingSampleProfile = !Opts.SampleProfileFile.empty();
2215 bool UsingProfile =
2216 UsingSampleProfile || !Opts.ProfileInstrumentUsePath.empty();
2217
2218 if (Opts.DiagnosticsWithHotness && !UsingProfile &&
2219 // An IR file will contain PGO as metadata
2220 IK.getLanguage() != Language::LLVM_IR)
2221 Diags.Report(DiagID: diag::warn_drv_diagnostics_hotness_requires_pgo)
2222 << "-fdiagnostics-show-hotness";
2223
2224 // Parse remarks hotness threshold. Valid value is either integer or 'auto'.
2225 if (auto *arg =
2226 Args.getLastArg(Ids: options::OPT_fdiagnostics_hotness_threshold_EQ)) {
2227 auto ResultOrErr =
2228 llvm::remarks::parseHotnessThresholdOption(Arg: arg->getValue());
2229
2230 if (!ResultOrErr) {
2231 Diags.Report(DiagID: diag::err_drv_invalid_diagnotics_hotness_threshold)
2232 << "-fdiagnostics-hotness-threshold=";
2233 } else {
2234 Opts.DiagnosticsHotnessThreshold = *ResultOrErr;
2235 if ((!Opts.DiagnosticsHotnessThreshold ||
2236 *Opts.DiagnosticsHotnessThreshold > 0) &&
2237 !UsingProfile)
2238 Diags.Report(DiagID: diag::warn_drv_diagnostics_hotness_requires_pgo)
2239 << "-fdiagnostics-hotness-threshold=";
2240 }
2241 }
2242
2243 if (auto *arg =
2244 Args.getLastArg(Ids: options::OPT_fdiagnostics_misexpect_tolerance_EQ)) {
2245 auto ResultOrErr = parseToleranceOption(Arg: arg->getValue());
2246
2247 if (!ResultOrErr) {
2248 Diags.Report(DiagID: diag::err_drv_invalid_diagnotics_misexpect_tolerance)
2249 << "-fdiagnostics-misexpect-tolerance=";
2250 } else {
2251 Opts.DiagnosticsMisExpectTolerance = *ResultOrErr;
2252 if ((!Opts.DiagnosticsMisExpectTolerance ||
2253 *Opts.DiagnosticsMisExpectTolerance > 0) &&
2254 !UsingProfile)
2255 Diags.Report(DiagID: diag::warn_drv_diagnostics_misexpect_requires_pgo)
2256 << "-fdiagnostics-misexpect-tolerance=";
2257 }
2258 }
2259
2260 // If the user requested to use a sample profile for PGO, then the
2261 // backend will need to track source location information so the profile
2262 // can be incorporated into the IR.
2263 if (UsingSampleProfile)
2264 NeedLocTracking = true;
2265
2266 if (!Opts.StackUsageFile.empty())
2267 NeedLocTracking = true;
2268
2269 // If the user requested a flag that requires source locations available in
2270 // the backend, make sure that the backend tracks source location information.
2271 if (NeedLocTracking &&
2272 Opts.getDebugInfo() == llvm::codegenoptions::NoDebugInfo)
2273 Opts.setDebugInfo(llvm::codegenoptions::LocTrackingOnly);
2274
2275 // Parse -fsanitize-recover= arguments.
2276 // FIXME: Report unrecoverable sanitizers incorrectly specified here.
2277 parseSanitizerKinds(FlagName: "-fsanitize-recover=",
2278 Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_recover_EQ), Diags,
2279 S&: Opts.SanitizeRecover);
2280 parseSanitizerKinds(FlagName: "-fsanitize-trap=",
2281 Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_trap_EQ), Diags,
2282 S&: Opts.SanitizeTrap);
2283 parseSanitizerKinds(FlagName: "-fsanitize-merge=",
2284 Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_merge_handlers_EQ),
2285 Diags, S&: Opts.SanitizeMergeHandlers);
2286
2287 // Parse -fsanitize-skip-hot-cutoff= arguments.
2288 Opts.SanitizeSkipHotCutoffs = parseSanitizerWeightedKinds(
2289 FlagName: "-fsanitize-skip-hot-cutoff=",
2290 Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_skip_hot_cutoff_EQ), Diags);
2291
2292 parseSanitizerKinds(
2293 FlagName: "-fsanitize-annotate-debug-info=",
2294 Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_annotate_debug_info_EQ), Diags,
2295 S&: Opts.SanitizeAnnotateDebugInfo);
2296
2297 if (StringRef V =
2298 Args.getLastArgValue(Id: OPT_fallow_runtime_check_skip_hot_cutoff_EQ);
2299 !V.empty()) {
2300 double A;
2301 if (V.getAsDouble(Result&: A) || A < 0.0 || A > 1.0) {
2302 Diags.Report(DiagID: diag::err_drv_invalid_value)
2303 << "-fallow-runtime-check-skip-hot-cutoff=" << V;
2304 } else {
2305 Opts.AllowRuntimeCheckSkipHotCutoff = A;
2306 }
2307 }
2308
2309 Opts.EmitVersionIdentMetadata = Args.hasFlag(Pos: OPT_Qy, Neg: OPT_Qn, Default: true);
2310
2311 if (!LangOpts->CUDAIsDevice)
2312 parsePointerAuthOptions(Opts&: Opts.PointerAuth, LangOpts: *LangOpts, Triple: T, Diags);
2313
2314 if (Args.hasArg(Ids: options::OPT_ffinite_loops))
2315 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always;
2316 else if (Args.hasArg(Ids: options::OPT_fno_finite_loops))
2317 Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never;
2318
2319 Opts.EmitIEEENaNCompliantInsts = Args.hasFlag(
2320 Pos: options::OPT_mamdgpu_ieee, Neg: options::OPT_mno_amdgpu_ieee, Default: true);
2321 if (!Opts.EmitIEEENaNCompliantInsts && !LangOptsRef.NoHonorNaNs)
2322 Diags.Report(DiagID: diag::err_drv_amdgpu_ieee_without_no_honor_nans);
2323
2324 Opts.StaticClosure = Args.hasArg(Ids: options::OPT_static_libclosure);
2325
2326 if (!Opts.HLSLRecordCommandLine.empty()) {
2327 auto ParsedArgs =
2328 clang::parseEscapedCommandLine(CommandLine: Opts.HLSLRecordCommandLine.c_str());
2329 if (!ParsedArgs)
2330 Diags.Report(DiagID: diag::err_drv_invalid_escaped_command_line)
2331 << llvm::toString(E: ParsedArgs.takeError());
2332 else
2333 Opts.HLSLParsedCommandLine = std::move(*ParsedArgs);
2334 }
2335
2336 return Diags.getNumErrors() == NumErrorsBefore;
2337}
2338
2339static void GenerateDependencyOutputArgs(const DependencyOutputOptions &Opts,
2340 ArgumentConsumer Consumer) {
2341 const DependencyOutputOptions &DependencyOutputOpts = Opts;
2342#define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \
2343 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
2344#include "clang/Options/Options.inc"
2345#undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING
2346
2347 if (Opts.ShowIncludesDest != ShowIncludesDestination::None)
2348 GenerateArg(Consumer, OptSpecifier: OPT_show_includes);
2349
2350 for (const auto &Dep : Opts.ExtraDeps) {
2351 switch (Dep.second) {
2352 case EDK_SanitizeIgnorelist:
2353 // Sanitizer ignorelist arguments are generated from LanguageOptions.
2354 continue;
2355 case EDK_ModuleFile:
2356 // Module file arguments are generated from FrontendOptions and
2357 // HeaderSearchOptions.
2358 continue;
2359 case EDK_ProfileList:
2360 // Profile list arguments are generated from LanguageOptions via the
2361 // marshalling infrastructure.
2362 continue;
2363 case EDK_DepFileEntry:
2364 GenerateArg(Consumer, OptSpecifier: OPT_fdepfile_entry, Value: Dep.first);
2365 break;
2366 }
2367 }
2368}
2369
2370static bool ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
2371 ArgList &Args, DiagnosticsEngine &Diags,
2372 frontend::ActionKind Action,
2373 bool ShowLineMarkers) {
2374 unsigned NumErrorsBefore = Diags.getNumErrors();
2375
2376 DependencyOutputOptions &DependencyOutputOpts = Opts;
2377#define DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING(...) \
2378 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
2379#include "clang/Options/Options.inc"
2380#undef DEPENDENCY_OUTPUT_OPTION_WITH_MARSHALLING
2381
2382 if (Args.hasArg(Ids: OPT_show_includes)) {
2383 // Writing both /showIncludes and preprocessor output to stdout
2384 // would produce interleaved output, so use stderr for /showIncludes.
2385 // This behaves the same as cl.exe, when /E, /EP or /P are passed.
2386 if (Action == frontend::PrintPreprocessedInput || !ShowLineMarkers)
2387 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr;
2388 else
2389 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout;
2390 } else {
2391 Opts.ShowIncludesDest = ShowIncludesDestination::None;
2392 }
2393
2394 // Add sanitizer ignorelists as extra dependencies.
2395 // They won't be discovered by the regular preprocessor, so
2396 // we let make / ninja to know about this implicit dependency.
2397 if (!Args.hasArg(Ids: OPT_fno_sanitize_ignorelist)) {
2398 for (const auto *A : Args.filtered(Ids: OPT_fsanitize_ignorelist_EQ)) {
2399 StringRef Val = A->getValue();
2400 if (!Val.contains(C: '='))
2401 Opts.ExtraDeps.emplace_back(args: std::string(Val), args: EDK_SanitizeIgnorelist);
2402 }
2403 if (Opts.IncludeSystemHeaders) {
2404 for (const auto *A : Args.filtered(Ids: OPT_fsanitize_system_ignorelist_EQ)) {
2405 StringRef Val = A->getValue();
2406 if (!Val.contains(C: '='))
2407 Opts.ExtraDeps.emplace_back(args: std::string(Val), args: EDK_SanitizeIgnorelist);
2408 }
2409 }
2410 }
2411
2412 // -fprofile-list= dependencies.
2413 for (const auto &Filename : Args.getAllArgValues(Id: OPT_fprofile_list_EQ))
2414 Opts.ExtraDeps.emplace_back(args: Filename, args: EDK_ProfileList);
2415
2416 // Propagate the extra dependencies.
2417 for (const auto *A : Args.filtered(Ids: OPT_fdepfile_entry))
2418 Opts.ExtraDeps.emplace_back(args: A->getValue(), args: EDK_DepFileEntry);
2419
2420 // Only the -fmodule-file=<file> form.
2421 for (const auto *A : Args.filtered(Ids: OPT_fmodule_file)) {
2422 StringRef Val = A->getValue();
2423 if (!Val.contains(C: '='))
2424 Opts.ExtraDeps.emplace_back(args: std::string(Val), args: EDK_ModuleFile);
2425 }
2426
2427 // Check for invalid combinations of header-include-format
2428 // and header-include-filtering.
2429 if (Opts.HeaderIncludeFormat == HIFMT_Textual &&
2430 Opts.HeaderIncludeFiltering != HIFIL_None) {
2431 if (Args.hasArg(Ids: OPT_header_include_format_EQ))
2432 Diags.Report(DiagID: diag::err_drv_print_header_cc1_invalid_combination)
2433 << headerIncludeFormatKindToString(K: Opts.HeaderIncludeFormat)
2434 << headerIncludeFilteringKindToString(K: Opts.HeaderIncludeFiltering);
2435 else
2436 Diags.Report(DiagID: diag::err_drv_print_header_cc1_invalid_filtering)
2437 << headerIncludeFilteringKindToString(K: Opts.HeaderIncludeFiltering);
2438 } else if (Opts.HeaderIncludeFormat == HIFMT_JSON &&
2439 Opts.HeaderIncludeFiltering == HIFIL_None) {
2440 if (Args.hasArg(Ids: OPT_header_include_filtering_EQ))
2441 Diags.Report(DiagID: diag::err_drv_print_header_cc1_invalid_combination)
2442 << headerIncludeFormatKindToString(K: Opts.HeaderIncludeFormat)
2443 << headerIncludeFilteringKindToString(K: Opts.HeaderIncludeFiltering);
2444 else
2445 Diags.Report(DiagID: diag::err_drv_print_header_cc1_invalid_format)
2446 << headerIncludeFormatKindToString(K: Opts.HeaderIncludeFormat);
2447 }
2448
2449 return Diags.getNumErrors() == NumErrorsBefore;
2450}
2451
2452static ShowColorsKind parseShowColorsMode(const ArgList &Args,
2453 bool DefaultColor) {
2454 // Color diagnostics default to auto ("on" if terminal supports) in the driver
2455 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color.
2456 // Support both clang's -f[no-]color-diagnostics and gcc's
2457 // -f[no-]diagnostics-colors[=never|always|auto].
2458 ShowColorsKind Mode =
2459 DefaultColor ? ShowColorsKind::Auto : ShowColorsKind::Off;
2460 for (auto *A : Args) {
2461 const Option &O = A->getOption();
2462 if (O.matches(ID: options::OPT_fcolor_diagnostics)) {
2463 Mode = ShowColorsKind::On;
2464 } else if (O.matches(ID: options::OPT_fno_color_diagnostics)) {
2465 Mode = ShowColorsKind::Off;
2466 } else if (O.matches(ID: options::OPT_fdiagnostics_color_EQ)) {
2467 StringRef Value(A->getValue());
2468 if (Value == "always")
2469 Mode = ShowColorsKind::On;
2470 else if (Value == "never")
2471 Mode = ShowColorsKind::Off;
2472 else if (Value == "auto")
2473 Mode = ShowColorsKind::Auto;
2474 }
2475 }
2476 return Mode;
2477}
2478
2479static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes,
2480 DiagnosticsEngine &Diags) {
2481 bool Success = true;
2482 for (const auto &Prefix : VerifyPrefixes) {
2483 // Every prefix must start with a letter and contain only alphanumeric
2484 // characters, hyphens, and underscores.
2485 auto BadChar = llvm::find_if(Range: Prefix, P: [](char C) {
2486 return !isAlphanumeric(c: C) && C != '-' && C != '_';
2487 });
2488 if (BadChar != Prefix.end() || !isLetter(c: Prefix[0])) {
2489 Success = false;
2490 Diags.Report(DiagID: diag::err_drv_invalid_value) << "-verify=" << Prefix;
2491 Diags.Report(DiagID: diag::note_drv_verify_prefix_spelling);
2492 }
2493 }
2494 return Success;
2495}
2496
2497static void GenerateFileSystemArgs(const FileSystemOptions &Opts,
2498 ArgumentConsumer Consumer) {
2499 const FileSystemOptions &FileSystemOpts = Opts;
2500
2501#define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \
2502 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
2503#include "clang/Options/Options.inc"
2504#undef FILE_SYSTEM_OPTION_WITH_MARSHALLING
2505}
2506
2507static bool ParseFileSystemArgs(FileSystemOptions &Opts, const ArgList &Args,
2508 DiagnosticsEngine &Diags) {
2509 unsigned NumErrorsBefore = Diags.getNumErrors();
2510
2511 FileSystemOptions &FileSystemOpts = Opts;
2512
2513#define FILE_SYSTEM_OPTION_WITH_MARSHALLING(...) \
2514 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
2515#include "clang/Options/Options.inc"
2516#undef FILE_SYSTEM_OPTION_WITH_MARSHALLING
2517
2518 return Diags.getNumErrors() == NumErrorsBefore;
2519}
2520
2521static void GenerateMigratorArgs(const MigratorOptions &Opts,
2522 ArgumentConsumer Consumer) {
2523 const MigratorOptions &MigratorOpts = Opts;
2524#define MIGRATOR_OPTION_WITH_MARSHALLING(...) \
2525 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
2526#include "clang/Options/Options.inc"
2527#undef MIGRATOR_OPTION_WITH_MARSHALLING
2528}
2529
2530static bool ParseMigratorArgs(MigratorOptions &Opts, const ArgList &Args,
2531 DiagnosticsEngine &Diags) {
2532 unsigned NumErrorsBefore = Diags.getNumErrors();
2533
2534 MigratorOptions &MigratorOpts = Opts;
2535
2536#define MIGRATOR_OPTION_WITH_MARSHALLING(...) \
2537 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
2538#include "clang/Options/Options.inc"
2539#undef MIGRATOR_OPTION_WITH_MARSHALLING
2540
2541 return Diags.getNumErrors() == NumErrorsBefore;
2542}
2543
2544void CompilerInvocationBase::GenerateDiagnosticArgs(
2545 const DiagnosticOptions &Opts, ArgumentConsumer Consumer,
2546 bool DefaultDiagColor) {
2547 const DiagnosticOptions *DiagnosticOpts = &Opts;
2548#define DIAG_OPTION_WITH_MARSHALLING(...) \
2549 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
2550#include "clang/Options/Options.inc"
2551#undef DIAG_OPTION_WITH_MARSHALLING
2552
2553 if (!Opts.DiagnosticSerializationFile.empty())
2554 GenerateArg(Consumer, OptSpecifier: OPT_diagnostic_serialized_file,
2555 Value: Opts.DiagnosticSerializationFile);
2556
2557 switch (Opts.getShowColors()) {
2558 case ShowColorsKind::On:
2559 GenerateArg(Consumer, OptSpecifier: OPT_fcolor_diagnostics);
2560 break;
2561 case ShowColorsKind::Off:
2562 GenerateArg(Consumer, OptSpecifier: OPT_fno_color_diagnostics);
2563 break;
2564 case ShowColorsKind::Auto:
2565 break;
2566 }
2567
2568 if (Opts.VerifyDiagnostics &&
2569 llvm::is_contained(Range: Opts.VerifyPrefixes, Element: "expected"))
2570 GenerateArg(Consumer, OptSpecifier: OPT_verify);
2571
2572 for (const auto &Prefix : Opts.VerifyPrefixes)
2573 if (Prefix != "expected")
2574 GenerateArg(Consumer, OptSpecifier: OPT_verify_EQ, Value: Prefix);
2575
2576 if (Opts.VerifyDirectives) {
2577 GenerateArg(Consumer, OptSpecifier: OPT_verify_directives);
2578 }
2579
2580 DiagnosticLevelMask VIU = Opts.getVerifyIgnoreUnexpected();
2581 if (VIU == DiagnosticLevelMask::None) {
2582 // This is the default, don't generate anything.
2583 } else if (VIU == DiagnosticLevelMask::All) {
2584 GenerateArg(Consumer, OptSpecifier: OPT_verify_ignore_unexpected);
2585 } else {
2586 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Note) != 0)
2587 GenerateArg(Consumer, OptSpecifier: OPT_verify_ignore_unexpected_EQ, Value: "note");
2588 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Remark) != 0)
2589 GenerateArg(Consumer, OptSpecifier: OPT_verify_ignore_unexpected_EQ, Value: "remark");
2590 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Warning) != 0)
2591 GenerateArg(Consumer, OptSpecifier: OPT_verify_ignore_unexpected_EQ, Value: "warning");
2592 if (static_cast<unsigned>(VIU & DiagnosticLevelMask::Error) != 0)
2593 GenerateArg(Consumer, OptSpecifier: OPT_verify_ignore_unexpected_EQ, Value: "error");
2594 }
2595
2596 for (const auto &Warning : Opts.Warnings) {
2597 // This option is automatically generated from UndefPrefixes.
2598 if (Warning == "undef-prefix")
2599 continue;
2600 // This option is automatically generated from CheckConstexprFunctionBodies.
2601 if (Warning == "invalid-constexpr" || Warning == "no-invalid-constexpr")
2602 continue;
2603 Consumer(StringRef("-W") + Warning);
2604 }
2605
2606 for (const auto &Remark : Opts.Remarks) {
2607 // These arguments are generated from OptimizationRemark fields of
2608 // CodeGenOptions.
2609 StringRef IgnoredRemarks[] = {"pass", "no-pass",
2610 "pass-analysis", "no-pass-analysis",
2611 "pass-missed", "no-pass-missed"};
2612 if (llvm::is_contained(Range&: IgnoredRemarks, Element: Remark))
2613 continue;
2614
2615 Consumer(StringRef("-R") + Remark);
2616 }
2617
2618 if (!Opts.DiagnosticSuppressionMappingsFile.empty()) {
2619 GenerateArg(Consumer, OptSpecifier: OPT_warning_suppression_mappings_EQ,
2620 Value: Opts.DiagnosticSuppressionMappingsFile);
2621 }
2622}
2623
2624std::unique_ptr<DiagnosticOptions>
2625clang::CreateAndPopulateDiagOpts(ArrayRef<const char *> Argv) {
2626 auto DiagOpts = std::make_unique<DiagnosticOptions>();
2627 unsigned MissingArgIndex, MissingArgCount;
2628 InputArgList Args = getDriverOptTable().ParseArgs(
2629 Args: Argv.slice(N: 1), MissingArgIndex, MissingArgCount);
2630
2631 bool ShowColors = true;
2632 if (std::optional<std::string> NoColor =
2633 llvm::sys::Process::GetEnv(name: "NO_COLOR");
2634 NoColor && !NoColor->empty()) {
2635 // If the user set the NO_COLOR environment variable, we'll honor that
2636 // unless the command line overrides it.
2637 ShowColors = false;
2638 }
2639
2640 // We ignore MissingArgCount and the return value of ParseDiagnosticArgs.
2641 // Any errors that would be diagnosed here will also be diagnosed later,
2642 // when the DiagnosticsEngine actually exists.
2643 (void)ParseDiagnosticArgs(Opts&: *DiagOpts, Args, /*Diags=*/nullptr, DefaultDiagColor: ShowColors);
2644 return DiagOpts;
2645}
2646
2647bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
2648 DiagnosticsEngine *Diags,
2649 bool DefaultDiagColor) {
2650 std::optional<DiagnosticOptions> IgnoringDiagOpts;
2651 std::optional<DiagnosticsEngine> IgnoringDiags;
2652 if (!Diags) {
2653 IgnoringDiagOpts.emplace();
2654 IgnoringDiags.emplace(args: DiagnosticIDs::create(), args&: *IgnoringDiagOpts,
2655 args: new IgnoringDiagConsumer());
2656 Diags = &*IgnoringDiags;
2657 }
2658
2659 unsigned NumErrorsBefore = Diags->getNumErrors();
2660
2661 // The key paths of diagnostic options defined in Options.td start with
2662 // "DiagnosticOpts->". Let's provide the expected variable name and type.
2663 DiagnosticOptions *DiagnosticOpts = &Opts;
2664
2665#define DIAG_OPTION_WITH_MARSHALLING(...) \
2666 PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, __VA_ARGS__)
2667#include "clang/Options/Options.inc"
2668#undef DIAG_OPTION_WITH_MARSHALLING
2669
2670 llvm::sys::Process::UseANSIEscapeCodes(enable: Opts.UseANSIEscapeCodes);
2671
2672 if (Arg *A =
2673 Args.getLastArg(Ids: OPT_diagnostic_serialized_file, Ids: OPT__serialize_diags))
2674 Opts.DiagnosticSerializationFile = A->getValue();
2675 Opts.setShowColors(parseShowColorsMode(Args, DefaultColor: DefaultDiagColor));
2676
2677 Opts.VerifyDiagnostics = Args.hasArg(Ids: OPT_verify) || Args.hasArg(Ids: OPT_verify_EQ);
2678 Opts.VerifyDirectives = Args.hasArg(Ids: OPT_verify_directives);
2679 Opts.VerifyPrefixes = Args.getAllArgValues(Id: OPT_verify_EQ);
2680 if (Args.hasArg(Ids: OPT_verify))
2681 Opts.VerifyPrefixes.push_back(x: "expected");
2682 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and
2683 // then sort it to prepare for fast lookup using std::binary_search.
2684 if (!checkVerifyPrefixes(VerifyPrefixes: Opts.VerifyPrefixes, Diags&: *Diags))
2685 Opts.VerifyDiagnostics = false;
2686 else
2687 llvm::sort(C&: Opts.VerifyPrefixes);
2688 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None;
2689 parseDiagnosticLevelMask(
2690 FlagName: "-verify-ignore-unexpected=",
2691 Levels: Args.getAllArgValues(Id: OPT_verify_ignore_unexpected_EQ), Diags&: *Diags, M&: DiagMask);
2692 if (Args.hasArg(Ids: OPT_verify_ignore_unexpected))
2693 DiagMask = DiagnosticLevelMask::All;
2694 Opts.setVerifyIgnoreUnexpected(DiagMask);
2695 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
2696 Diags->Report(DiagID: diag::warn_ignoring_ftabstop_value)
2697 << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
2698 Opts.TabStop = DiagnosticOptions::DefaultTabStop;
2699 }
2700
2701 if (const Arg *A = Args.getLastArg(Ids: OPT_warning_suppression_mappings_EQ))
2702 Opts.DiagnosticSuppressionMappingsFile = A->getValue();
2703
2704 addDiagnosticArgs(Args, Group: OPT_W_Group, GroupWithValue: OPT_W_value_Group, Diagnostics&: Opts.Warnings);
2705 addDiagnosticArgs(Args, Group: OPT_R_Group, GroupWithValue: OPT_R_value_Group, Diagnostics&: Opts.Remarks);
2706
2707 return Diags->getNumErrors() == NumErrorsBefore;
2708}
2709
2710unsigned clang::getOptimizationLevel(const ArgList &Args, InputKind IK,
2711 DiagnosticsEngine &Diags) {
2712 unsigned DefaultOpt = 0;
2713 if ((IK.getLanguage() == Language::OpenCL ||
2714 IK.getLanguage() == Language::OpenCLCXX) &&
2715 !Args.hasArg(Ids: OPT_cl_opt_disable))
2716 DefaultOpt = 2;
2717
2718 if (Arg *A = Args.getLastArg(Ids: options::OPT_O_Group)) {
2719 if (A->getOption().matches(ID: options::OPT_O0))
2720 return 0;
2721
2722 if (A->getOption().matches(ID: options::OPT_Ofast))
2723 return 3;
2724
2725 assert(A->getOption().matches(options::OPT_O));
2726
2727 StringRef S(A->getValue());
2728 if (S == "s" || S == "z")
2729 return 2;
2730
2731 if (S == "g")
2732 return 1;
2733
2734 DefaultOpt = getLastArgIntValue(Args, Id: OPT_O, Default: DefaultOpt, Diags);
2735 }
2736
2737 unsigned MaxOptLevel = 3;
2738 if (DefaultOpt > MaxOptLevel) {
2739 // If the optimization level is not supported, fall back on the default
2740 // optimization
2741 Diags.Report(DiagID: diag::warn_drv_optimization_value)
2742 << Args.getLastArg(Ids: OPT_O)->getAsString(Args) << "-O" << MaxOptLevel;
2743 DefaultOpt = MaxOptLevel;
2744 }
2745
2746 return DefaultOpt;
2747}
2748
2749unsigned clang::getOptimizationLevelSize(const ArgList &Args) {
2750 if (Arg *A = Args.getLastArg(Ids: options::OPT_O_Group)) {
2751 if (A->getOption().matches(ID: options::OPT_O)) {
2752 switch (A->getValue()[0]) {
2753 default:
2754 return 0;
2755 case 's':
2756 return 1;
2757 case 'z':
2758 return 2;
2759 }
2760 }
2761 }
2762 return 0;
2763}
2764
2765/// Parse the argument to the -ftest-module-file-extension
2766/// command-line argument.
2767///
2768/// \returns true on error, false on success.
2769static bool parseTestModuleFileExtensionArg(StringRef Arg,
2770 std::string &BlockName,
2771 unsigned &MajorVersion,
2772 unsigned &MinorVersion,
2773 bool &Hashed,
2774 std::string &UserInfo) {
2775 SmallVector<StringRef, 5> Args;
2776 Arg.split(A&: Args, Separator: ':', MaxSplit: 5);
2777 if (Args.size() < 5)
2778 return true;
2779
2780 BlockName = std::string(Args[0]);
2781 if (Args[1].getAsInteger(Radix: 10, Result&: MajorVersion)) return true;
2782 if (Args[2].getAsInteger(Radix: 10, Result&: MinorVersion)) return true;
2783 if (Args[3].getAsInteger(Radix: 2, Result&: Hashed)) return true;
2784 if (Args.size() > 4)
2785 UserInfo = std::string(Args[4]);
2786 return false;
2787}
2788
2789/// Return a table that associates command line option specifiers with the
2790/// frontend action. Note: The pair {frontend::PluginAction, OPT_plugin} is
2791/// intentionally missing, as this case is handled separately from other
2792/// frontend options.
2793static const auto &getFrontendActionTable() {
2794 static const std::pair<frontend::ActionKind, unsigned> Table[] = {
2795 {frontend::ASTDeclList, OPT_ast_list},
2796
2797 {frontend::ASTDump, OPT_ast_dump_all_EQ},
2798 {frontend::ASTDump, OPT_ast_dump_all},
2799 {frontend::ASTDump, OPT_ast_dump_EQ},
2800 {frontend::ASTDump, OPT_ast_dump},
2801 {frontend::ASTDump, OPT_ast_dump_lookups},
2802 {frontend::ASTDump, OPT_ast_dump_decl_types},
2803
2804 {frontend::ASTPrint, OPT_ast_print},
2805 {frontend::ASTView, OPT_ast_view},
2806 {frontend::DumpCompilerOptions, OPT_compiler_options_dump},
2807 {frontend::DumpRawTokens, OPT_dump_raw_tokens},
2808 {frontend::DumpTokens, OPT_dump_tokens},
2809 {frontend::EmitAssembly, OPT_S},
2810 {frontend::EmitBC, OPT_emit_llvm_bc},
2811 {frontend::EmitCIR, OPT_emit_cir},
2812 {frontend::EmitHTML, OPT_emit_html},
2813 {frontend::EmitLLVM, OPT_emit_llvm},
2814 {frontend::EmitLLVMOnly, OPT_emit_llvm_only},
2815 {frontend::EmitCodeGenOnly, OPT_emit_codegen_only},
2816 {frontend::EmitObj, OPT_emit_obj},
2817 {frontend::ExtractAPI, OPT_extract_api},
2818
2819 {frontend::FixIt, OPT_fixit_EQ},
2820 {frontend::FixIt, OPT_fixit},
2821
2822 {frontend::GenerateModule, OPT_emit_module},
2823 {frontend::GenerateModuleInterface, OPT_emit_module_interface},
2824 {frontend::GenerateReducedModuleInterface,
2825 OPT_emit_reduced_module_interface},
2826 {frontend::GenerateHeaderUnit, OPT_emit_header_unit},
2827 {frontend::GeneratePCH, OPT_emit_pch},
2828 {frontend::GenerateInterfaceStubs, OPT_emit_interface_stubs},
2829 {frontend::InitOnly, OPT_init_only},
2830 {frontend::ParseSyntaxOnly, OPT_fsyntax_only},
2831 {frontend::ModuleFileInfo, OPT_module_file_info},
2832 {frontend::VerifyPCH, OPT_verify_pch},
2833 {frontend::PrintPreamble, OPT_print_preamble},
2834 {frontend::PrintPreprocessedInput, OPT_E},
2835 {frontend::RewriteMacros, OPT_rewrite_macros},
2836 {frontend::RewriteObjC, OPT_rewrite_objc},
2837 {frontend::RewriteTest, OPT_rewrite_test},
2838 {frontend::RunAnalysis, OPT_analyze},
2839 {frontend::RunPreprocessorOnly, OPT_Eonly},
2840 {frontend::PrintDependencyDirectivesSourceMinimizerOutput,
2841 OPT_print_dependency_directives_minimized_source},
2842 };
2843
2844 return Table;
2845}
2846
2847/// Maps command line option to frontend action.
2848static std::optional<frontend::ActionKind>
2849getFrontendAction(OptSpecifier &Opt) {
2850 for (const auto &ActionOpt : getFrontendActionTable())
2851 if (ActionOpt.second == Opt.getID())
2852 return ActionOpt.first;
2853
2854 return std::nullopt;
2855}
2856
2857/// Maps frontend action to command line option.
2858static std::optional<OptSpecifier>
2859getProgramActionOpt(frontend::ActionKind ProgramAction) {
2860 for (const auto &ActionOpt : getFrontendActionTable())
2861 if (ActionOpt.first == ProgramAction)
2862 return OptSpecifier(ActionOpt.second);
2863
2864 return std::nullopt;
2865}
2866
2867static void GenerateFrontendArgs(const FrontendOptions &Opts,
2868 ArgumentConsumer Consumer, bool IsHeader) {
2869 const FrontendOptions &FrontendOpts = Opts;
2870#define FRONTEND_OPTION_WITH_MARSHALLING(...) \
2871 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
2872#include "clang/Options/Options.inc"
2873#undef FRONTEND_OPTION_WITH_MARSHALLING
2874
2875 std::optional<OptSpecifier> ProgramActionOpt =
2876 getProgramActionOpt(ProgramAction: Opts.ProgramAction);
2877
2878 // Generating a simple flag covers most frontend actions.
2879 std::function<void()> GenerateProgramAction = [&]() {
2880 GenerateArg(Consumer, OptSpecifier: *ProgramActionOpt);
2881 };
2882
2883 if (!ProgramActionOpt) {
2884 // PluginAction is the only program action handled separately.
2885 assert(Opts.ProgramAction == frontend::PluginAction &&
2886 "Frontend action without option.");
2887 GenerateProgramAction = [&]() {
2888 GenerateArg(Consumer, OptSpecifier: OPT_plugin, Value: Opts.ActionName);
2889 };
2890 }
2891
2892 // FIXME: Simplify the complex 'AST dump' command line.
2893 if (Opts.ProgramAction == frontend::ASTDump) {
2894 GenerateProgramAction = [&]() {
2895 // ASTDumpLookups, ASTDumpDeclTypes and ASTDumpFilter are generated via
2896 // marshalling infrastructure.
2897
2898 if (Opts.ASTDumpFormat != ADOF_Default) {
2899 StringRef Format;
2900 switch (Opts.ASTDumpFormat) {
2901 case ADOF_Default:
2902 llvm_unreachable("Default AST dump format.");
2903 case ADOF_JSON:
2904 Format = "json";
2905 break;
2906 }
2907
2908 if (Opts.ASTDumpAll)
2909 GenerateArg(Consumer, OptSpecifier: OPT_ast_dump_all_EQ, Value: Format);
2910 if (Opts.ASTDumpDecls)
2911 GenerateArg(Consumer, OptSpecifier: OPT_ast_dump_EQ, Value: Format);
2912 } else {
2913 if (Opts.ASTDumpAll)
2914 GenerateArg(Consumer, OptSpecifier: OPT_ast_dump_all);
2915 if (Opts.ASTDumpDecls)
2916 GenerateArg(Consumer, OptSpecifier: OPT_ast_dump);
2917 }
2918 };
2919 }
2920
2921 if (Opts.ProgramAction == frontend::FixIt && !Opts.FixItSuffix.empty()) {
2922 GenerateProgramAction = [&]() {
2923 GenerateArg(Consumer, OptSpecifier: OPT_fixit_EQ, Value: Opts.FixItSuffix);
2924 };
2925 }
2926
2927 GenerateProgramAction();
2928
2929 for (const auto &PluginArgs : Opts.PluginArgs) {
2930 Option Opt = getDriverOptTable().getOption(Opt: OPT_plugin_arg);
2931 for (const auto &PluginArg : PluginArgs.second)
2932 denormalizeString(Consumer,
2933 Spelling: Opt.getPrefix() + Opt.getName() + PluginArgs.first,
2934 OptClass: Opt.getKind(), TableIndex: 0, Value: PluginArg);
2935 }
2936
2937 for (const auto &Ext : Opts.ModuleFileExtensions)
2938 if (auto *TestExt = dyn_cast_or_null<TestModuleFileExtension>(Val: Ext.get()))
2939 GenerateArg(Consumer, OptSpecifier: OPT_ftest_module_file_extension_EQ, Value: TestExt->str());
2940
2941 if (!Opts.CodeCompletionAt.FileName.empty())
2942 GenerateArg(Consumer, OptSpecifier: OPT_code_completion_at,
2943 Value: Opts.CodeCompletionAt.ToString());
2944
2945 for (const auto &Plugin : Opts.Plugins)
2946 GenerateArg(Consumer, OptSpecifier: OPT_load, Value: Plugin);
2947
2948 // ASTDumpDecls and ASTDumpAll already handled with ProgramAction.
2949
2950 for (const auto &ModuleFile : Opts.ModuleFiles)
2951 GenerateArg(Consumer, OptSpecifier: OPT_fmodule_file, Value: ModuleFile);
2952
2953 if (Opts.AuxTargetCPU)
2954 GenerateArg(Consumer, OptSpecifier: OPT_aux_target_cpu, Value: *Opts.AuxTargetCPU);
2955
2956 if (Opts.AuxTargetFeatures)
2957 for (const auto &Feature : *Opts.AuxTargetFeatures)
2958 GenerateArg(Consumer, OptSpecifier: OPT_aux_target_feature, Value: Feature);
2959
2960 {
2961 StringRef Preprocessed = Opts.DashX.isPreprocessed() ? "-cpp-output" : "";
2962 StringRef ModuleMap =
2963 Opts.DashX.getFormat() == InputKind::ModuleMap ? "-module-map" : "";
2964 StringRef HeaderUnit = "";
2965 switch (Opts.DashX.getHeaderUnitKind()) {
2966 case InputKind::HeaderUnit_None:
2967 break;
2968 case InputKind::HeaderUnit_User:
2969 HeaderUnit = "-user";
2970 break;
2971 case InputKind::HeaderUnit_System:
2972 HeaderUnit = "-system";
2973 break;
2974 case InputKind::HeaderUnit_Abs:
2975 HeaderUnit = "-header-unit";
2976 break;
2977 }
2978 StringRef Header = IsHeader ? "-header" : "";
2979
2980 StringRef Lang;
2981 switch (Opts.DashX.getLanguage()) {
2982 case Language::C:
2983 Lang = "c";
2984 break;
2985 case Language::OpenCL:
2986 Lang = "cl";
2987 break;
2988 case Language::OpenCLCXX:
2989 Lang = "clcpp";
2990 break;
2991 case Language::CUDA:
2992 Lang = "cuda";
2993 break;
2994 case Language::HIP:
2995 Lang = "hip";
2996 break;
2997 case Language::CXX:
2998 Lang = "c++";
2999 break;
3000 case Language::ObjC:
3001 Lang = "objective-c";
3002 break;
3003 case Language::ObjCXX:
3004 Lang = "objective-c++";
3005 break;
3006 case Language::Asm:
3007 Lang = "assembler-with-cpp";
3008 break;
3009 case Language::Unknown:
3010 assert(Opts.DashX.getFormat() == InputKind::Precompiled &&
3011 "Generating -x argument for unknown language (not precompiled).");
3012 Lang = "ast";
3013 break;
3014 case Language::LLVM_IR:
3015 Lang = "ir";
3016 break;
3017 case Language::HLSL:
3018 Lang = "hlsl";
3019 break;
3020 case Language::CIR:
3021 Lang = "cir";
3022 break;
3023 }
3024
3025 GenerateArg(Consumer, OptSpecifier: OPT_x,
3026 Value: Lang + HeaderUnit + Header + ModuleMap + Preprocessed);
3027 }
3028
3029 // OPT_INPUT has a unique class, generate it directly.
3030 for (const auto &Input : Opts.Inputs)
3031 Consumer(Input.getFile());
3032}
3033
3034static bool ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
3035 DiagnosticsEngine &Diags, bool &IsHeaderFile) {
3036 unsigned NumErrorsBefore = Diags.getNumErrors();
3037
3038 FrontendOptions &FrontendOpts = Opts;
3039
3040#define FRONTEND_OPTION_WITH_MARSHALLING(...) \
3041 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
3042#include "clang/Options/Options.inc"
3043#undef FRONTEND_OPTION_WITH_MARSHALLING
3044
3045 Opts.ProgramAction = frontend::ParseSyntaxOnly;
3046 if (const Arg *A = Args.getLastArg(Ids: OPT_Action_Group)) {
3047 OptSpecifier Opt = OptSpecifier(A->getOption().getID());
3048 std::optional<frontend::ActionKind> ProgramAction = getFrontendAction(Opt);
3049 assert(ProgramAction && "Option specifier not in Action_Group.");
3050
3051 if (ProgramAction == frontend::ASTDump &&
3052 (Opt == OPT_ast_dump_all_EQ || Opt == OPT_ast_dump_EQ)) {
3053 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue())
3054 .CaseLower(S: "default", Value: ADOF_Default)
3055 .CaseLower(S: "json", Value: ADOF_JSON)
3056 .Default(Value: std::numeric_limits<unsigned>::max());
3057
3058 if (Val != std::numeric_limits<unsigned>::max())
3059 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val);
3060 else {
3061 Diags.Report(DiagID: diag::err_drv_invalid_value)
3062 << A->getAsString(Args) << A->getValue();
3063 Opts.ASTDumpFormat = ADOF_Default;
3064 }
3065 }
3066
3067 if (ProgramAction == frontend::FixIt && Opt == OPT_fixit_EQ)
3068 Opts.FixItSuffix = A->getValue();
3069
3070 if (ProgramAction == frontend::GenerateInterfaceStubs) {
3071 StringRef ArgStr =
3072 Args.hasArg(Ids: OPT_interface_stub_version_EQ)
3073 ? Args.getLastArgValue(Id: OPT_interface_stub_version_EQ)
3074 : "ifs-v1";
3075 if (ArgStr == "experimental-yaml-elf-v1" ||
3076 ArgStr == "experimental-ifs-v1" || ArgStr == "experimental-ifs-v2" ||
3077 ArgStr == "experimental-tapi-elf-v1") {
3078 std::string ErrorMessage =
3079 "Invalid interface stub format: " + ArgStr.str() +
3080 " is deprecated.";
3081 Diags.Report(DiagID: diag::err_drv_invalid_value)
3082 << "Must specify a valid interface stub format type, ie: "
3083 "-interface-stub-version=ifs-v1"
3084 << ErrorMessage;
3085 ProgramAction = frontend::ParseSyntaxOnly;
3086 } else if (!ArgStr.starts_with(Prefix: "ifs-")) {
3087 std::string ErrorMessage =
3088 "Invalid interface stub format: " + ArgStr.str() + ".";
3089 Diags.Report(DiagID: diag::err_drv_invalid_value)
3090 << "Must specify a valid interface stub format type, ie: "
3091 "-interface-stub-version=ifs-v1"
3092 << ErrorMessage;
3093 ProgramAction = frontend::ParseSyntaxOnly;
3094 }
3095 }
3096
3097 Opts.ProgramAction = *ProgramAction;
3098
3099 // Catch common mistakes when multiple actions are specified for cc1 (e.g.
3100 // -S -emit-llvm means -emit-llvm while -emit-llvm -S means -S). However, to
3101 // support driver `-c -Xclang ACTION` (-cc1 -emit-llvm file -main-file-name
3102 // X ACTION), we suppress the error when the two actions are separated by
3103 // -main-file-name.
3104 //
3105 // As an exception, accept composable -ast-dump*.
3106 if (!A->getSpelling().starts_with(Prefix: "-ast-dump")) {
3107 const Arg *SavedAction = nullptr;
3108 for (const Arg *AA :
3109 Args.filtered(Ids: OPT_Action_Group, Ids: OPT_main_file_name)) {
3110 if (AA->getOption().matches(ID: OPT_main_file_name)) {
3111 SavedAction = nullptr;
3112 } else if (!SavedAction) {
3113 SavedAction = AA;
3114 } else {
3115 if (!A->getOption().matches(ID: OPT_ast_dump_EQ))
3116 Diags.Report(DiagID: diag::err_fe_invalid_multiple_actions)
3117 << SavedAction->getSpelling() << A->getSpelling();
3118 break;
3119 }
3120 }
3121 }
3122 }
3123
3124 if (const Arg* A = Args.getLastArg(Ids: OPT_plugin)) {
3125 Opts.Plugins.emplace_back(args: A->getValue(N: 0));
3126 Opts.ProgramAction = frontend::PluginAction;
3127 Opts.ActionName = A->getValue();
3128 }
3129 for (const auto *AA : Args.filtered(Ids: OPT_plugin_arg))
3130 Opts.PluginArgs[AA->getValue(N: 0)].emplace_back(args: AA->getValue(N: 1));
3131
3132 for (const std::string &Arg :
3133 Args.getAllArgValues(Id: OPT_ftest_module_file_extension_EQ)) {
3134 std::string BlockName;
3135 unsigned MajorVersion;
3136 unsigned MinorVersion;
3137 bool Hashed;
3138 std::string UserInfo;
3139 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion,
3140 MinorVersion, Hashed, UserInfo)) {
3141 Diags.Report(DiagID: diag::err_test_module_file_extension_format) << Arg;
3142
3143 continue;
3144 }
3145
3146 // Add the testing module file extension.
3147 Opts.ModuleFileExtensions.push_back(
3148 x: std::make_shared<TestModuleFileExtension>(
3149 args&: BlockName, args&: MajorVersion, args&: MinorVersion, args&: Hashed, args&: UserInfo));
3150 }
3151
3152 if (const Arg *A = Args.getLastArg(Ids: OPT_code_completion_at)) {
3153 Opts.CodeCompletionAt =
3154 ParsedSourceLocation::FromString(Str: A->getValue());
3155 if (Opts.CodeCompletionAt.FileName.empty()) {
3156 Diags.Report(DiagID: diag::err_drv_invalid_value)
3157 << A->getAsString(Args) << A->getValue();
3158 Diags.Report(DiagID: diag::note_command_line_code_loc_requirement);
3159 }
3160 }
3161
3162 Opts.Plugins = Args.getAllArgValues(Id: OPT_load);
3163 Opts.ASTDumpDecls = Args.hasArg(Ids: OPT_ast_dump, Ids: OPT_ast_dump_EQ);
3164 Opts.ASTDumpAll = Args.hasArg(Ids: OPT_ast_dump_all, Ids: OPT_ast_dump_all_EQ);
3165 // Only the -fmodule-file=<file> form.
3166 for (const auto *A : Args.filtered(Ids: OPT_fmodule_file)) {
3167 StringRef Val = A->getValue();
3168 if (!Val.contains(C: '='))
3169 Opts.ModuleFiles.push_back(x: std::string(Val));
3170 }
3171
3172 if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule)
3173 Diags.Report(DiagID: diag::err_drv_argument_only_allowed_with) << "-fsystem-module"
3174 << "-emit-module";
3175 if (Args.hasArg(Ids: OPT_fclangir) || Args.hasArg(Ids: OPT_emit_cir))
3176 Opts.UseClangIRPipeline = true;
3177
3178#if CLANG_ENABLE_CIR
3179 if (Args.hasArg(OPT_clangir_disable_passes))
3180 Opts.ClangIRDisablePasses = true;
3181
3182 if (Args.hasArg(OPT_clangir_disable_verifier))
3183 Opts.ClangIRDisableCIRVerifier = true;
3184
3185 if (Args.hasArg(OPT_clangir_lib_opt) || Args.hasArg(OPT_clangir_lib_opt_EQ))
3186 Opts.ClangIRLibOptEnabled = true;
3187#endif // CLANG_ENABLE_CIR
3188
3189 if (Args.hasArg(Ids: OPT_aux_target_cpu))
3190 Opts.AuxTargetCPU = std::string(Args.getLastArgValue(Id: OPT_aux_target_cpu));
3191 if (Args.hasArg(Ids: OPT_aux_target_feature))
3192 Opts.AuxTargetFeatures = Args.getAllArgValues(Id: OPT_aux_target_feature);
3193
3194 InputKind DashX(Language::Unknown);
3195 if (const Arg *A = Args.getLastArg(Ids: OPT_x)) {
3196 StringRef XValue = A->getValue();
3197
3198 // Parse suffixes:
3199 // '<lang>(-[{header-unit,user,system}-]header|[-module-map][-cpp-output])'.
3200 // FIXME: Supporting '<lang>-header-cpp-output' would be useful.
3201 bool Preprocessed = XValue.consume_back(Suffix: "-cpp-output");
3202 bool ModuleMap = XValue.consume_back(Suffix: "-module-map");
3203 // Detect and consume the header indicator.
3204 bool IsHeader =
3205 XValue != "precompiled-header" && XValue.consume_back(Suffix: "-header");
3206
3207 // If we have c++-{user,system}-header, that indicates a header unit input
3208 // likewise, if the user put -fmodule-header together with a header with an
3209 // absolute path (header-unit-header).
3210 InputKind::HeaderUnitKind HUK = InputKind::HeaderUnit_None;
3211 if (IsHeader || Preprocessed) {
3212 if (XValue.consume_back(Suffix: "-header-unit"))
3213 HUK = InputKind::HeaderUnit_Abs;
3214 else if (XValue.consume_back(Suffix: "-system"))
3215 HUK = InputKind::HeaderUnit_System;
3216 else if (XValue.consume_back(Suffix: "-user"))
3217 HUK = InputKind::HeaderUnit_User;
3218 }
3219
3220 // The value set by this processing is an un-preprocessed source which is
3221 // not intended to be a module map or header unit.
3222 IsHeaderFile = IsHeader && !Preprocessed && !ModuleMap &&
3223 HUK == InputKind::HeaderUnit_None;
3224
3225 // Principal languages.
3226 DashX = llvm::StringSwitch<InputKind>(XValue)
3227 .Case(S: "c", Value: Language::C)
3228 .Case(S: "cl", Value: Language::OpenCL)
3229 .Case(S: "clcpp", Value: Language::OpenCLCXX)
3230 .Case(S: "cuda", Value: Language::CUDA)
3231 .Case(S: "hip", Value: Language::HIP)
3232 .Case(S: "c++", Value: Language::CXX)
3233 .Case(S: "objective-c", Value: Language::ObjC)
3234 .Case(S: "objective-c++", Value: Language::ObjCXX)
3235 .Case(S: "hlsl", Value: Language::HLSL)
3236 .Default(Value: Language::Unknown);
3237
3238 // "objc[++]-cpp-output" is an acceptable synonym for
3239 // "objective-c[++]-cpp-output".
3240 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap &&
3241 HUK == InputKind::HeaderUnit_None)
3242 DashX = llvm::StringSwitch<InputKind>(XValue)
3243 .Case(S: "objc", Value: Language::ObjC)
3244 .Case(S: "objc++", Value: Language::ObjCXX)
3245 .Default(Value: Language::Unknown);
3246
3247 // Some special cases cannot be combined with suffixes.
3248 if (DashX.isUnknown() && !Preprocessed && !IsHeaderFile && !ModuleMap &&
3249 HUK == InputKind::HeaderUnit_None)
3250 DashX = llvm::StringSwitch<InputKind>(XValue)
3251 .Case(S: "cpp-output", Value: InputKind(Language::C).getPreprocessed())
3252 .Case(S: "assembler-with-cpp", Value: Language::Asm)
3253 .Cases(CaseStrings: {"ast", "pcm", "precompiled-header"},
3254 Value: InputKind(Language::Unknown, InputKind::Precompiled))
3255 .Case(S: "ir", Value: Language::LLVM_IR)
3256 .Case(S: "cir", Value: Language::CIR)
3257 .Default(Value: Language::Unknown);
3258
3259 if (DashX.isUnknown())
3260 Diags.Report(DiagID: diag::err_drv_invalid_value)
3261 << A->getAsString(Args) << A->getValue();
3262
3263 if (Preprocessed)
3264 DashX = DashX.getPreprocessed();
3265 // A regular header is considered mutually exclusive with a header unit.
3266 if (HUK != InputKind::HeaderUnit_None) {
3267 DashX = DashX.withHeaderUnit(HU: HUK);
3268 IsHeaderFile = true;
3269 } else if (IsHeaderFile)
3270 DashX = DashX.getHeader();
3271 if (ModuleMap)
3272 DashX = DashX.withFormat(F: InputKind::ModuleMap);
3273 }
3274
3275 // '-' is the default input if none is given.
3276 std::vector<std::string> Inputs = Args.getAllArgValues(Id: OPT_INPUT);
3277 Opts.Inputs.clear();
3278 if (Inputs.empty())
3279 Inputs.push_back(x: "-");
3280
3281 if (DashX.getHeaderUnitKind() != InputKind::HeaderUnit_None &&
3282 Inputs.size() > 1)
3283 Diags.Report(DiagID: diag::err_drv_header_unit_extra_inputs) << Inputs[1];
3284
3285 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
3286 InputKind IK = DashX;
3287 if (IK.isUnknown()) {
3288 IK = FrontendOptions::getInputKindForExtension(
3289 Extension: StringRef(Inputs[i]).rsplit(Separator: '.').second);
3290 // FIXME: Warn on this?
3291 if (IK.isUnknown())
3292 IK = Language::C;
3293 // FIXME: Remove this hack.
3294 if (i == 0)
3295 DashX = IK;
3296 }
3297
3298 bool IsSystem = false;
3299
3300 // The -emit-module action implicitly takes a module map.
3301 if (Opts.ProgramAction == frontend::GenerateModule &&
3302 IK.getFormat() == InputKind::Source) {
3303 IK = IK.withFormat(F: InputKind::ModuleMap);
3304 IsSystem = Opts.IsSystemModule;
3305 }
3306
3307 Opts.Inputs.emplace_back(Args: std::move(Inputs[i]), Args&: IK, Args&: IsSystem);
3308 }
3309
3310 Opts.DashX = DashX;
3311
3312 // CIR is a source-level frontend pipeline. When the input is already LLVM IR
3313 // (e.g. during the backend phase of OpenMP offloading), the standard LLVM
3314 // backend should be used instead.
3315 if (Opts.UseClangIRPipeline && DashX.getLanguage() == Language::LLVM_IR)
3316 Opts.UseClangIRPipeline = false;
3317
3318 return Diags.getNumErrors() == NumErrorsBefore;
3319}
3320
3321static void GenerateHeaderSearchArgs(const HeaderSearchOptions &Opts,
3322 ArgumentConsumer Consumer) {
3323 const HeaderSearchOptions *HeaderSearchOpts = &Opts;
3324#define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \
3325 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
3326#include "clang/Options/Options.inc"
3327#undef HEADER_SEARCH_OPTION_WITH_MARSHALLING
3328
3329 if (Opts.UseLibcxx)
3330 GenerateArg(Consumer, OptSpecifier: OPT_stdlib_EQ, Value: "libc++");
3331
3332 for (const auto &File : Opts.PrebuiltModuleFiles)
3333 GenerateArg(Consumer, OptSpecifier: OPT_fmodule_file, Value: File.first + "=" + File.second);
3334
3335 for (const auto &Path : Opts.PrebuiltModulePaths)
3336 GenerateArg(Consumer, OptSpecifier: OPT_fprebuilt_module_path, Value: Path);
3337
3338 for (const auto &Macro : Opts.ModulesIgnoreMacros)
3339 GenerateArg(Consumer, OptSpecifier: OPT_fmodules_ignore_macro, Value: Macro.val());
3340
3341 auto Matches = [](const HeaderSearchOptions::Entry &Entry,
3342 llvm::ArrayRef<frontend::IncludeDirGroup> Groups,
3343 std::optional<bool> IsFramework,
3344 std::optional<bool> IgnoreSysRoot) {
3345 return llvm::is_contained(Range&: Groups, Element: Entry.Group) &&
3346 (!IsFramework || (Entry.IsFramework == *IsFramework)) &&
3347 (!IgnoreSysRoot || (Entry.IgnoreSysRoot == *IgnoreSysRoot));
3348 };
3349
3350 auto It = Opts.UserEntries.begin();
3351 auto End = Opts.UserEntries.end();
3352
3353 // Add -I... and -F... options in order.
3354 for (; It < End && Matches(*It, {frontend::Angled}, std::nullopt, true);
3355 ++It) {
3356 OptSpecifier Opt = [It, Matches]() {
3357 if (Matches(*It, frontend::Angled, true, true))
3358 return OPT_F;
3359 if (Matches(*It, frontend::Angled, false, true))
3360 return OPT_I;
3361 llvm_unreachable("Unexpected HeaderSearchOptions::Entry.");
3362 }();
3363
3364 GenerateArg(Consumer, OptSpecifier: Opt, Value: It->Path);
3365 }
3366
3367 // Note: some paths that came from "[-iprefix=xx] -iwithprefixbefore=yy" may
3368 // have already been generated as "-I[xx]yy". If that's the case, their
3369 // position on command line was such that this has no semantic impact on
3370 // include paths.
3371 for (; It < End &&
3372 Matches(*It, {frontend::After, frontend::Angled}, false, true);
3373 ++It) {
3374 OptSpecifier Opt =
3375 It->Group == frontend::After ? OPT_iwithprefix : OPT_iwithprefixbefore;
3376 GenerateArg(Consumer, OptSpecifier: Opt, Value: It->Path);
3377 }
3378
3379 // Note: Some paths that came from "-idirafter=xxyy" may have already been
3380 // generated as "-iwithprefix=xxyy". If that's the case, their position on
3381 // command line was such that this has no semantic impact on include paths.
3382 for (; It < End && Matches(*It, {frontend::After}, false, true); ++It)
3383 GenerateArg(Consumer, OptSpecifier: OPT_idirafter, Value: It->Path);
3384 for (; It < End && Matches(*It, {frontend::Quoted}, false, true); ++It)
3385 GenerateArg(Consumer, OptSpecifier: OPT_iquote, Value: It->Path);
3386 for (; It < End && Matches(*It, {frontend::System}, false, std::nullopt);
3387 ++It)
3388 GenerateArg(Consumer, OptSpecifier: It->IgnoreSysRoot ? OPT_isystem : OPT_iwithsysroot,
3389 Value: It->Path);
3390 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It)
3391 GenerateArg(Consumer, OptSpecifier: OPT_iframework, Value: It->Path);
3392 for (; It < End && Matches(*It, {frontend::System}, true, false); ++It)
3393 GenerateArg(Consumer, OptSpecifier: OPT_iframeworkwithsysroot, Value: It->Path);
3394
3395 // Add the paths for the various language specific isystem flags.
3396 for (; It < End && Matches(*It, {frontend::CSystem}, false, true); ++It)
3397 GenerateArg(Consumer, OptSpecifier: OPT_c_isystem, Value: It->Path);
3398 for (; It < End && Matches(*It, {frontend::CXXSystem}, false, true); ++It)
3399 GenerateArg(Consumer, OptSpecifier: OPT_cxx_isystem, Value: It->Path);
3400 for (; It < End && Matches(*It, {frontend::ObjCSystem}, false, true); ++It)
3401 GenerateArg(Consumer, OptSpecifier: OPT_objc_isystem, Value: It->Path);
3402 for (; It < End && Matches(*It, {frontend::ObjCXXSystem}, false, true); ++It)
3403 GenerateArg(Consumer, OptSpecifier: OPT_objcxx_isystem, Value: It->Path);
3404
3405 // Add the internal paths from a driver that detects standard include paths.
3406 // Note: Some paths that came from "-internal-isystem" arguments may have
3407 // already been generated as "-isystem". If that's the case, their position on
3408 // command line was such that this has no semantic impact on include paths.
3409 for (; It < End &&
3410 Matches(*It, {frontend::System, frontend::ExternCSystem}, false, true);
3411 ++It) {
3412 OptSpecifier Opt = It->Group == frontend::System
3413 ? OPT_internal_isystem
3414 : OPT_internal_externc_isystem;
3415 GenerateArg(Consumer, OptSpecifier: Opt, Value: It->Path);
3416 }
3417 for (; It < End && Matches(*It, {frontend::System}, true, true); ++It)
3418 GenerateArg(Consumer, OptSpecifier: OPT_internal_iframework, Value: It->Path);
3419
3420 assert(It == End && "Unhandled HeaderSearchOption::Entry.");
3421
3422 // Add the path prefixes which are implicitly treated as being system headers.
3423 for (const auto &P : Opts.SystemHeaderPrefixes) {
3424 OptSpecifier Opt = P.IsSystemHeader ? OPT_system_header_prefix
3425 : OPT_no_system_header_prefix;
3426 GenerateArg(Consumer, OptSpecifier: Opt, Value: P.Prefix);
3427 }
3428
3429 for (const std::string &F : Opts.VFSOverlayFiles)
3430 GenerateArg(Consumer, OptSpecifier: OPT_ivfsoverlay, Value: F);
3431}
3432
3433static bool ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args,
3434 DiagnosticsEngine &Diags) {
3435 unsigned NumErrorsBefore = Diags.getNumErrors();
3436
3437 HeaderSearchOptions *HeaderSearchOpts = &Opts;
3438
3439#define HEADER_SEARCH_OPTION_WITH_MARSHALLING(...) \
3440 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
3441#include "clang/Options/Options.inc"
3442#undef HEADER_SEARCH_OPTION_WITH_MARSHALLING
3443
3444 if (const Arg *A = Args.getLastArg(Ids: OPT_stdlib_EQ))
3445 Opts.UseLibcxx = (strcmp(s1: A->getValue(), s2: "libc++") == 0);
3446
3447 // Only the -fmodule-file=<name>=<file> form.
3448 for (const auto *A : Args.filtered(Ids: OPT_fmodule_file)) {
3449 StringRef Val = A->getValue();
3450 if (Val.contains(C: '=')) {
3451 auto Split = Val.split(Separator: '=');
3452 Opts.PrebuiltModuleFiles.insert_or_assign(
3453 k: std::string(Split.first), obj: std::string(Split.second));
3454 }
3455 }
3456 for (const auto *A : Args.filtered(Ids: OPT_fprebuilt_module_path))
3457 Opts.AddPrebuiltModulePath(Name: A->getValue());
3458
3459 for (const auto *A : Args.filtered(Ids: OPT_fmodules_ignore_macro)) {
3460 StringRef MacroDef = A->getValue();
3461 Opts.ModulesIgnoreMacros.insert(
3462 X: llvm::CachedHashString(MacroDef.split(Separator: '=').first));
3463 }
3464
3465 // Add -I... and -F... options in order.
3466 bool IsSysrootSpecified =
3467 Args.hasArg(Ids: OPT__sysroot_EQ) || Args.hasArg(Ids: OPT_isysroot);
3468
3469 // Expand a leading `=` to the sysroot if one was passed (and it's not a
3470 // framework flag).
3471 auto PrefixHeaderPath = [IsSysrootSpecified,
3472 &Opts](const llvm::opt::Arg *A,
3473 bool IsFramework = false) -> std::string {
3474 assert(A->getNumValues() && "Unexpected empty search path flag!");
3475 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') {
3476 SmallString<32> Buffer;
3477 llvm::sys::path::append(path&: Buffer, a: Opts.Sysroot,
3478 b: llvm::StringRef(A->getValue()).substr(Start: 1));
3479 return std::string(Buffer);
3480 }
3481 return A->getValue();
3482 };
3483
3484 for (const auto *A : Args.filtered(Ids: OPT_I, Ids: OPT_F)) {
3485 bool IsFramework = A->getOption().matches(ID: OPT_F);
3486 Opts.AddPath(Path: PrefixHeaderPath(A, IsFramework), Group: frontend::Angled,
3487 IsFramework, /*IgnoreSysroot=*/IgnoreSysRoot: true);
3488 }
3489
3490 // Add -iprefix/-iwithprefix/-iwithprefixbefore options.
3491 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
3492 for (const auto *A :
3493 Args.filtered(Ids: OPT_iprefix, Ids: OPT_iwithprefix, Ids: OPT_iwithprefixbefore)) {
3494 if (A->getOption().matches(ID: OPT_iprefix))
3495 Prefix = A->getValue();
3496 else if (A->getOption().matches(ID: OPT_iwithprefix))
3497 Opts.AddPath(Path: Prefix.str() + A->getValue(), Group: frontend::After, IsFramework: false, IgnoreSysRoot: true);
3498 else
3499 Opts.AddPath(Path: Prefix.str() + A->getValue(), Group: frontend::Angled, IsFramework: false, IgnoreSysRoot: true);
3500 }
3501
3502 for (const auto *A : Args.filtered(Ids: OPT_idirafter))
3503 Opts.AddPath(Path: PrefixHeaderPath(A), Group: frontend::After, IsFramework: false, IgnoreSysRoot: true);
3504 for (const auto *A : Args.filtered(Ids: OPT_iquote))
3505 Opts.AddPath(Path: PrefixHeaderPath(A), Group: frontend::Quoted, IsFramework: false, IgnoreSysRoot: true);
3506
3507 for (const auto *A : Args.filtered(Ids: OPT_isystem, Ids: OPT_iwithsysroot)) {
3508 if (A->getOption().matches(ID: OPT_iwithsysroot)) {
3509 Opts.AddPath(Path: A->getValue(), Group: frontend::System, IsFramework: false,
3510 /*IgnoreSysRoot=*/false);
3511 continue;
3512 }
3513 Opts.AddPath(Path: PrefixHeaderPath(A), Group: frontend::System, IsFramework: false, IgnoreSysRoot: true);
3514 }
3515 for (const auto *A : Args.filtered(Ids: OPT_iframework))
3516 Opts.AddPath(Path: A->getValue(), Group: frontend::System, IsFramework: true, IgnoreSysRoot: true);
3517 for (const auto *A : Args.filtered(Ids: OPT_iframeworkwithsysroot))
3518 Opts.AddPath(Path: A->getValue(), Group: frontend::System, /*IsFramework=*/true,
3519 /*IgnoreSysRoot=*/false);
3520
3521 // Add the paths for the various language specific isystem flags.
3522 for (const auto *A : Args.filtered(Ids: OPT_c_isystem))
3523 Opts.AddPath(Path: A->getValue(), Group: frontend::CSystem, IsFramework: false, IgnoreSysRoot: true);
3524 for (const auto *A : Args.filtered(Ids: OPT_cxx_isystem))
3525 Opts.AddPath(Path: A->getValue(), Group: frontend::CXXSystem, IsFramework: false, IgnoreSysRoot: true);
3526 for (const auto *A : Args.filtered(Ids: OPT_objc_isystem))
3527 Opts.AddPath(Path: A->getValue(), Group: frontend::ObjCSystem, IsFramework: false,IgnoreSysRoot: true);
3528 for (const auto *A : Args.filtered(Ids: OPT_objcxx_isystem))
3529 Opts.AddPath(Path: A->getValue(), Group: frontend::ObjCXXSystem, IsFramework: false, IgnoreSysRoot: true);
3530
3531 // Add the internal paths from a driver that detects standard include paths.
3532 for (const auto *A :
3533 Args.filtered(Ids: OPT_internal_isystem, Ids: OPT_internal_externc_isystem)) {
3534 frontend::IncludeDirGroup Group = frontend::System;
3535 if (A->getOption().matches(ID: OPT_internal_externc_isystem))
3536 Group = frontend::ExternCSystem;
3537 Opts.AddPath(Path: A->getValue(), Group, IsFramework: false, IgnoreSysRoot: true);
3538 }
3539 for (const auto *A : Args.filtered(Ids: OPT_internal_iframework))
3540 Opts.AddPath(Path: A->getValue(), Group: frontend::System, IsFramework: true, IgnoreSysRoot: true);
3541
3542 // Add the path prefixes which are implicitly treated as being system headers.
3543 for (const auto *A :
3544 Args.filtered(Ids: OPT_system_header_prefix, Ids: OPT_no_system_header_prefix))
3545 Opts.AddSystemHeaderPrefix(
3546 Prefix: A->getValue(), IsSystemHeader: A->getOption().matches(ID: OPT_system_header_prefix));
3547
3548 for (const auto *A : Args.filtered(Ids: OPT_ivfsoverlay, Ids: OPT_vfsoverlay))
3549 Opts.AddVFSOverlayFile(Name: A->getValue());
3550
3551 return Diags.getNumErrors() == NumErrorsBefore;
3552}
3553
3554static void GenerateAPINotesArgs(const APINotesOptions &Opts,
3555 ArgumentConsumer Consumer) {
3556 if (!Opts.SwiftVersion.empty())
3557 GenerateArg(Consumer, OptSpecifier: OPT_fapinotes_swift_version,
3558 Value: Opts.SwiftVersion.getAsString());
3559
3560 for (const auto &Path : Opts.ModuleSearchPaths)
3561 GenerateArg(Consumer, OptSpecifier: OPT_iapinotes_modules, Value: Path);
3562}
3563
3564static void ParseAPINotesArgs(APINotesOptions &Opts, ArgList &Args,
3565 DiagnosticsEngine &diags) {
3566 if (const Arg *A = Args.getLastArg(Ids: OPT_fapinotes_swift_version)) {
3567 if (Opts.SwiftVersion.tryParse(string: A->getValue()))
3568 diags.Report(DiagID: diag::err_drv_invalid_value)
3569 << A->getAsString(Args) << A->getValue();
3570 }
3571 for (const Arg *A : Args.filtered(Ids: OPT_iapinotes_modules))
3572 Opts.ModuleSearchPaths.push_back(x: A->getValue());
3573}
3574
3575static void GeneratePointerAuthArgs(const LangOptions &Opts,
3576 ArgumentConsumer Consumer) {
3577 if (Opts.PointerAuthIntrinsics)
3578 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_intrinsics);
3579 if (Opts.PointerAuthCalls)
3580 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_calls);
3581 if (Opts.PointerAuthReturns)
3582 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_returns);
3583 if (Opts.PointerAuthIndirectGotos)
3584 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_indirect_gotos);
3585 if (Opts.PointerAuthAuthTraps)
3586 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_auth_traps);
3587 if (Opts.PointerAuthVTPtrAddressDiscrimination)
3588 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_vtable_pointer_address_discrimination);
3589 if (Opts.PointerAuthVTPtrTypeDiscrimination)
3590 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_vtable_pointer_type_discrimination);
3591 if (Opts.PointerAuthTypeInfoVTPtrDiscrimination)
3592 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_type_info_vtable_pointer_discrimination);
3593 if (Opts.PointerAuthFunctionTypeDiscrimination)
3594 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_function_pointer_type_discrimination);
3595 if (Opts.PointerAuthInitFini)
3596 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_init_fini);
3597 if (Opts.PointerAuthInitFiniAddressDiscrimination)
3598 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_init_fini_address_discrimination);
3599 if (Opts.PointerAuthELFGOT)
3600 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_elf_got);
3601 if (Opts.AArch64JumpTableHardening)
3602 GenerateArg(Consumer, OptSpecifier: OPT_faarch64_jump_table_hardening);
3603 if (Opts.PointerAuthObjcIsa)
3604 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_objc_isa);
3605 if (Opts.PointerAuthObjcInterfaceSel)
3606 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_objc_interface_sel);
3607 if (Opts.PointerAuthObjcClassROPointers)
3608 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_objc_class_ro);
3609 if (Opts.PointerAuthBlockDescriptorPointers)
3610 GenerateArg(Consumer, OptSpecifier: OPT_fptrauth_block_descriptor_pointers);
3611}
3612
3613static void ParsePointerAuthArgs(LangOptions &Opts, ArgList &Args,
3614 DiagnosticsEngine &Diags) {
3615 Opts.PointerAuthIntrinsics = Args.hasArg(Ids: OPT_fptrauth_intrinsics);
3616 Opts.PointerAuthCalls = Args.hasArg(Ids: OPT_fptrauth_calls);
3617 Opts.PointerAuthReturns = Args.hasArg(Ids: OPT_fptrauth_returns);
3618 Opts.PointerAuthIndirectGotos = Args.hasArg(Ids: OPT_fptrauth_indirect_gotos);
3619 Opts.PointerAuthAuthTraps = Args.hasArg(Ids: OPT_fptrauth_auth_traps);
3620 Opts.PointerAuthVTPtrAddressDiscrimination =
3621 Args.hasArg(Ids: OPT_fptrauth_vtable_pointer_address_discrimination);
3622 Opts.PointerAuthVTPtrTypeDiscrimination =
3623 Args.hasArg(Ids: OPT_fptrauth_vtable_pointer_type_discrimination);
3624 Opts.PointerAuthTypeInfoVTPtrDiscrimination =
3625 Args.hasArg(Ids: OPT_fptrauth_type_info_vtable_pointer_discrimination);
3626 Opts.PointerAuthFunctionTypeDiscrimination =
3627 Args.hasArg(Ids: OPT_fptrauth_function_pointer_type_discrimination);
3628 Opts.PointerAuthInitFini = Args.hasArg(Ids: OPT_fptrauth_init_fini);
3629 Opts.PointerAuthInitFiniAddressDiscrimination =
3630 Args.hasArg(Ids: OPT_fptrauth_init_fini_address_discrimination);
3631 Opts.PointerAuthELFGOT = Args.hasArg(Ids: OPT_fptrauth_elf_got);
3632 Opts.AArch64JumpTableHardening =
3633 Args.hasArg(Ids: OPT_faarch64_jump_table_hardening);
3634 Opts.PointerAuthBlockDescriptorPointers =
3635 Args.hasArg(Ids: OPT_fptrauth_block_descriptor_pointers);
3636 Opts.PointerAuthObjcIsa = Args.hasArg(Ids: OPT_fptrauth_objc_isa);
3637 Opts.PointerAuthObjcClassROPointers = Args.hasArg(Ids: OPT_fptrauth_objc_class_ro);
3638 Opts.PointerAuthObjcInterfaceSel =
3639 Args.hasArg(Ids: OPT_fptrauth_objc_interface_sel);
3640
3641 if (Opts.PointerAuthObjcInterfaceSel)
3642 Opts.PointerAuthObjcInterfaceSelKey =
3643 static_cast<unsigned>(PointerAuthSchema::ARM8_3Key::ASDB);
3644}
3645
3646/// Check if input file kind and language standard are compatible.
3647static bool IsInputCompatibleWithStandard(InputKind IK,
3648 const LangStandard &S) {
3649 switch (IK.getLanguage()) {
3650 case Language::Unknown:
3651 case Language::LLVM_IR:
3652 case Language::CIR:
3653 llvm_unreachable("should not parse language flags for this input");
3654
3655 case Language::C:
3656 case Language::ObjC:
3657 return S.getLanguage() == Language::C;
3658
3659 case Language::OpenCL:
3660 return S.getLanguage() == Language::OpenCL ||
3661 S.getLanguage() == Language::OpenCLCXX;
3662
3663 case Language::OpenCLCXX:
3664 return S.getLanguage() == Language::OpenCLCXX;
3665
3666 case Language::CXX:
3667 case Language::ObjCXX:
3668 return S.getLanguage() == Language::CXX;
3669
3670 case Language::CUDA:
3671 // FIXME: What -std= values should be permitted for CUDA compilations?
3672 return S.getLanguage() == Language::CUDA ||
3673 S.getLanguage() == Language::CXX;
3674
3675 case Language::HIP:
3676 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP;
3677
3678 case Language::Asm:
3679 // Accept (and ignore) all -std= values.
3680 // FIXME: The -std= value is not ignored; it affects the tokenization
3681 // and preprocessing rules if we're preprocessing this asm input.
3682 return true;
3683
3684 case Language::HLSL:
3685 return S.getLanguage() == Language::HLSL;
3686 }
3687
3688 llvm_unreachable("unexpected input language");
3689}
3690
3691/// Get language name for given input kind.
3692static StringRef GetInputKindName(InputKind IK) {
3693 switch (IK.getLanguage()) {
3694 case Language::C:
3695 return "C";
3696 case Language::ObjC:
3697 return "Objective-C";
3698 case Language::CXX:
3699 return "C++";
3700 case Language::ObjCXX:
3701 return "Objective-C++";
3702 case Language::OpenCL:
3703 return "OpenCL";
3704 case Language::OpenCLCXX:
3705 return "C++ for OpenCL";
3706 case Language::CUDA:
3707 return "CUDA";
3708 case Language::HIP:
3709 return "HIP";
3710
3711 case Language::Asm:
3712 return "Asm";
3713 case Language::LLVM_IR:
3714 return "LLVM IR";
3715 case Language::CIR:
3716 return "Clang IR";
3717
3718 case Language::HLSL:
3719 return "HLSL";
3720
3721 case Language::Unknown:
3722 break;
3723 }
3724 llvm_unreachable("unknown input language");
3725}
3726
3727void CompilerInvocationBase::GenerateLangArgs(const LangOptions &Opts,
3728 ArgumentConsumer Consumer,
3729 const llvm::Triple &T,
3730 InputKind IK) {
3731 if (IK.getFormat() == InputKind::Precompiled ||
3732 IK.getLanguage() == Language::LLVM_IR ||
3733 IK.getLanguage() == Language::CIR) {
3734 if (Opts.ObjCAutoRefCount)
3735 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_arc);
3736 if (Opts.PICLevel != 0)
3737 GenerateArg(Consumer, OptSpecifier: OPT_pic_level, Value: Twine(Opts.PICLevel));
3738 if (Opts.PIE)
3739 GenerateArg(Consumer, OptSpecifier: OPT_pic_is_pie);
3740 for (StringRef Sanitizer : serializeSanitizerKinds(S: Opts.Sanitize))
3741 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_EQ, Value: Sanitizer);
3742 for (StringRef Sanitizer :
3743 serializeSanitizerKinds(S: Opts.UBSanFeatureIgnoredSanitize))
3744 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_ignore_for_ubsan_feature_EQ,
3745 Value: Sanitizer);
3746
3747 return;
3748 }
3749
3750 OptSpecifier StdOpt;
3751 switch (Opts.LangStd) {
3752 case LangStandard::lang_opencl10:
3753 case LangStandard::lang_opencl11:
3754 case LangStandard::lang_opencl12:
3755 case LangStandard::lang_opencl20:
3756 case LangStandard::lang_opencl30:
3757 case LangStandard::lang_openclcpp10:
3758 case LangStandard::lang_openclcpp2021:
3759 StdOpt = OPT_cl_std_EQ;
3760 break;
3761 default:
3762 StdOpt = OPT_std_EQ;
3763 break;
3764 }
3765
3766 auto LangStandard = LangStandard::getLangStandardForKind(K: Opts.LangStd);
3767 GenerateArg(Consumer, OptSpecifier: StdOpt, Value: LangStandard.getName());
3768
3769 if (Opts.IncludeDefaultHeader)
3770 GenerateArg(Consumer, OptSpecifier: OPT_finclude_default_header);
3771 if (Opts.DeclareOpenCLBuiltins)
3772 GenerateArg(Consumer, OptSpecifier: OPT_fdeclare_opencl_builtins);
3773
3774 const LangOptions *LangOpts = &Opts;
3775
3776#define LANG_OPTION_WITH_MARSHALLING(...) \
3777 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
3778#include "clang/Options/Options.inc"
3779#undef LANG_OPTION_WITH_MARSHALLING
3780
3781 // The '-fcf-protection=' option is generated by CodeGenOpts generator.
3782
3783 if (Opts.ObjC) {
3784 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_runtime_EQ, Value: Opts.ObjCRuntime.getAsString());
3785
3786 if (Opts.GC == LangOptions::GCOnly)
3787 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_gc_only);
3788 else if (Opts.GC == LangOptions::HybridGC)
3789 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_gc);
3790 else if (Opts.ObjCAutoRefCount == 1)
3791 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_arc);
3792
3793 if (Opts.ObjCWeakRuntime)
3794 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_runtime_has_weak);
3795
3796 if (Opts.ObjCWeak)
3797 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_weak);
3798
3799 if (Opts.ObjCSubscriptingLegacyRuntime)
3800 GenerateArg(Consumer, OptSpecifier: OPT_fobjc_subscripting_legacy_runtime);
3801 }
3802
3803 if (Opts.GNUCVersion != 0) {
3804 unsigned Major = Opts.GNUCVersion / 100 / 100;
3805 unsigned Minor = (Opts.GNUCVersion / 100) % 100;
3806 unsigned Patch = Opts.GNUCVersion % 100;
3807 GenerateArg(Consumer, OptSpecifier: OPT_fgnuc_version_EQ,
3808 Value: Twine(Major) + "." + Twine(Minor) + "." + Twine(Patch));
3809 }
3810
3811 if (Opts.IgnoreXCOFFVisibility)
3812 GenerateArg(Consumer, OptSpecifier: OPT_mignore_xcoff_visibility);
3813
3814 if (Opts.SignedOverflowBehavior == LangOptions::SOB_Trapping) {
3815 GenerateArg(Consumer, OptSpecifier: OPT_ftrapv);
3816 GenerateArg(Consumer, OptSpecifier: OPT_ftrapv_handler, Value: Opts.OverflowHandler);
3817 } else if (Opts.SignedOverflowBehavior == LangOptions::SOB_Defined) {
3818 if (!Opts.MSVCCompat)
3819 GenerateArg(Consumer, OptSpecifier: OPT_fwrapv);
3820 } else if (Opts.MSVCCompat) {
3821 GenerateArg(Consumer, OptSpecifier: OPT_fno_wrapv);
3822 }
3823 if (Opts.PointerOverflowDefined)
3824 GenerateArg(Consumer, OptSpecifier: OPT_fwrapv_pointer);
3825
3826 if (Opts.MSCompatibilityVersion != 0) {
3827 unsigned Major = Opts.MSCompatibilityVersion / 10000000;
3828 unsigned Minor = (Opts.MSCompatibilityVersion / 100000) % 100;
3829 unsigned Subminor = Opts.MSCompatibilityVersion % 100000;
3830 GenerateArg(Consumer, OptSpecifier: OPT_fms_compatibility_version,
3831 Value: Twine(Major) + "." + Twine(Minor) + "." + Twine(Subminor));
3832 }
3833
3834 if ((!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) ||
3835 T.isOSzOS()) {
3836 if (!Opts.Trigraphs)
3837 GenerateArg(Consumer, OptSpecifier: OPT_fno_trigraphs);
3838 } else {
3839 if (Opts.Trigraphs)
3840 GenerateArg(Consumer, OptSpecifier: OPT_ftrigraphs);
3841 }
3842
3843 if (T.isOSzOS() && !Opts.ZOSExt)
3844 GenerateArg(Consumer, OptSpecifier: OPT_fno_zos_extensions);
3845 else if (Opts.ZOSExt)
3846 GenerateArg(Consumer, OptSpecifier: OPT_fzos_extensions);
3847
3848 if (Opts.Blocks && !(Opts.OpenCL && Opts.OpenCLVersion == 200))
3849 GenerateArg(Consumer, OptSpecifier: OPT_fblocks);
3850
3851 if (Opts.ConvergentFunctions)
3852 GenerateArg(Consumer, OptSpecifier: OPT_fconvergent_functions);
3853 else
3854 GenerateArg(Consumer, OptSpecifier: OPT_fno_convergent_functions);
3855
3856 if (Opts.NoBuiltin && !Opts.Freestanding)
3857 GenerateArg(Consumer, OptSpecifier: OPT_fno_builtin);
3858
3859 if (!Opts.NoBuiltin)
3860 for (const auto &Func : Opts.NoBuiltinFuncs)
3861 GenerateArg(Consumer, OptSpecifier: OPT_fno_builtin_, Value: Func);
3862
3863 if (Opts.LongDoubleSize == 128)
3864 GenerateArg(Consumer, OptSpecifier: OPT_mlong_double_128);
3865 else if (Opts.LongDoubleSize == 64)
3866 GenerateArg(Consumer, OptSpecifier: OPT_mlong_double_64);
3867 else if (Opts.LongDoubleSize == 80)
3868 GenerateArg(Consumer, OptSpecifier: OPT_mlong_double_80);
3869
3870 // Not generating '-mrtd', it's just an alias for '-fdefault-calling-conv='.
3871
3872 // OpenMP was requested via '-fopenmp', not implied by '-fopenmp-simd' or
3873 // '-fopenmp-targets='.
3874 if (Opts.OpenMP && !Opts.OpenMPSimd) {
3875 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp);
3876
3877 if (Opts.OpenMP != 51)
3878 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_version_EQ, Value: Twine(Opts.OpenMP));
3879
3880 if (!Opts.OpenMPUseTLS)
3881 GenerateArg(Consumer, OptSpecifier: OPT_fnoopenmp_use_tls);
3882
3883 if (Opts.OpenMPIsTargetDevice)
3884 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_is_target_device);
3885
3886 if (Opts.OpenMPIRBuilder)
3887 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_enable_irbuilder);
3888 }
3889
3890 if (Opts.OpenMPSimd) {
3891 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_simd);
3892
3893 if (Opts.OpenMP != 51)
3894 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_version_EQ, Value: Twine(Opts.OpenMP));
3895 }
3896
3897 if (Opts.OpenMPThreadSubscription)
3898 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_assume_threads_oversubscription);
3899
3900 if (Opts.OpenMPTeamSubscription)
3901 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_assume_teams_oversubscription);
3902
3903 if (Opts.OpenMPTargetDebug != 0)
3904 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_target_debug_EQ,
3905 Value: Twine(Opts.OpenMPTargetDebug));
3906
3907 if (Opts.OpenMPCUDANumSMs != 0)
3908 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_cuda_number_of_sm_EQ,
3909 Value: Twine(Opts.OpenMPCUDANumSMs));
3910
3911 if (Opts.OpenMPCUDABlocksPerSM != 0)
3912 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_cuda_blocks_per_sm_EQ,
3913 Value: Twine(Opts.OpenMPCUDABlocksPerSM));
3914
3915 if (!Opts.OMPTargetTriples.empty()) {
3916 std::string Targets;
3917 llvm::raw_string_ostream OS(Targets);
3918 llvm::interleave(
3919 c: Opts.OMPTargetTriples, os&: OS,
3920 each_fn: [&OS](const llvm::Triple &T) { OS << T.str(); }, separator: ",");
3921 GenerateArg(Consumer, OptSpecifier: OPT_offload_targets_EQ, Value: Targets);
3922 }
3923
3924 if (Opts.OpenMPCUDAMode)
3925 GenerateArg(Consumer, OptSpecifier: OPT_fopenmp_cuda_mode);
3926
3927 if (Opts.OpenACC)
3928 GenerateArg(Consumer, OptSpecifier: OPT_fopenacc);
3929
3930 // The arguments used to set Optimize, OptimizeSize and NoInlineDefine are
3931 // generated from CodeGenOptions.
3932
3933 if (Opts.DefaultFPContractMode == LangOptions::FPM_Fast)
3934 GenerateArg(Consumer, OptSpecifier: OPT_ffp_contract, Value: "fast");
3935 else if (Opts.DefaultFPContractMode == LangOptions::FPM_On)
3936 GenerateArg(Consumer, OptSpecifier: OPT_ffp_contract, Value: "on");
3937 else if (Opts.DefaultFPContractMode == LangOptions::FPM_Off)
3938 GenerateArg(Consumer, OptSpecifier: OPT_ffp_contract, Value: "off");
3939 else if (Opts.DefaultFPContractMode == LangOptions::FPM_FastHonorPragmas)
3940 GenerateArg(Consumer, OptSpecifier: OPT_ffp_contract, Value: "fast-honor-pragmas");
3941
3942 for (StringRef Sanitizer : serializeSanitizerKinds(S: Opts.Sanitize))
3943 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_EQ, Value: Sanitizer);
3944 for (StringRef Sanitizer :
3945 serializeSanitizerKinds(S: Opts.UBSanFeatureIgnoredSanitize))
3946 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_ignore_for_ubsan_feature_EQ, Value: Sanitizer);
3947
3948 // Conflating '-fsanitize-system-ignorelist' and '-fsanitize-ignorelist'.
3949 for (const std::string &F : Opts.NoSanitizeFiles)
3950 GenerateArg(Consumer, OptSpecifier: OPT_fsanitize_ignorelist_EQ, Value: F);
3951
3952 switch (Opts.getClangABICompat()) {
3953#define ABI_VER_MAJOR_MINOR(Major, Minor) \
3954 case LangOptions::ClangABI::Ver##Major##_##Minor: \
3955 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, #Major "." #Minor); \
3956 break;
3957#define ABI_VER_MAJOR(Major) \
3958 case LangOptions::ClangABI::Ver##Major: \
3959 GenerateArg(Consumer, OPT_fclang_abi_compat_EQ, #Major ".0"); \
3960 break;
3961#define ABI_VER_LATEST(Latest) \
3962 case LangOptions::ClangABI::Latest: \
3963 break;
3964#include "clang/Basic/ABIVersions.def"
3965 }
3966
3967 if (Opts.getSignReturnAddressScope() ==
3968 LangOptions::SignReturnAddressScopeKind::All)
3969 GenerateArg(Consumer, OptSpecifier: OPT_msign_return_address_EQ, Value: "all");
3970 else if (Opts.getSignReturnAddressScope() ==
3971 LangOptions::SignReturnAddressScopeKind::NonLeaf)
3972 GenerateArg(Consumer, OptSpecifier: OPT_msign_return_address_EQ, Value: "non-leaf");
3973
3974 if (Opts.getSignReturnAddressKey() ==
3975 LangOptions::SignReturnAddressKeyKind::BKey)
3976 GenerateArg(Consumer, OptSpecifier: OPT_msign_return_address_key_EQ, Value: "b_key");
3977
3978 if (Opts.CXXABI)
3979 GenerateArg(Consumer, OptSpecifier: OPT_fcxx_abi_EQ,
3980 Value: TargetCXXABI::getSpelling(ABIKind: *Opts.CXXABI));
3981
3982 if (Opts.RelativeCXXABIVTables)
3983 GenerateArg(Consumer, OptSpecifier: OPT_fexperimental_relative_cxx_abi_vtables);
3984 else
3985 GenerateArg(Consumer, OptSpecifier: OPT_fno_experimental_relative_cxx_abi_vtables);
3986
3987 if (Opts.UseTargetPathSeparator)
3988 GenerateArg(Consumer, OptSpecifier: OPT_ffile_reproducible);
3989 else
3990 GenerateArg(Consumer, OptSpecifier: OPT_fno_file_reproducible);
3991
3992 for (const auto &MP : Opts.MacroPrefixMap)
3993 GenerateArg(Consumer, OptSpecifier: OPT_fmacro_prefix_map_EQ, Value: MP.first + "=" + MP.second);
3994
3995 if (!Opts.RandstructSeed.empty())
3996 GenerateArg(Consumer, OptSpecifier: OPT_frandomize_layout_seed_EQ, Value: Opts.RandstructSeed);
3997
3998 if (Opts.AllocTokenMax)
3999 GenerateArg(Consumer, OptSpecifier: OPT_falloc_token_max_EQ,
4000 Value: std::to_string(val: *Opts.AllocTokenMax));
4001
4002 if (Opts.AllocTokenMode) {
4003 StringRef S = llvm::getAllocTokenModeAsString(Mode: *Opts.AllocTokenMode);
4004 GenerateArg(Consumer, OptSpecifier: OPT_falloc_token_mode_EQ, Value: S);
4005 }
4006 // Generate args for matrix types.
4007 if (Opts.MatrixTypes) {
4008 if (Opts.getDefaultMatrixMemoryLayout() ==
4009 LangOptions::MatrixMemoryLayout::MatrixColMajor)
4010 GenerateArg(Consumer, OptSpecifier: OPT_fmatrix_memory_layout_EQ, Value: "column-major");
4011 if (Opts.getDefaultMatrixMemoryLayout() ==
4012 LangOptions::MatrixMemoryLayout::MatrixRowMajor)
4013 GenerateArg(Consumer, OptSpecifier: OPT_fmatrix_memory_layout_EQ, Value: "row-major");
4014 }
4015}
4016
4017bool CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args,
4018 InputKind IK, const llvm::Triple &T,
4019 std::vector<std::string> &Includes,
4020 DiagnosticsEngine &Diags) {
4021 unsigned NumErrorsBefore = Diags.getNumErrors();
4022
4023 if (IK.getFormat() == InputKind::Precompiled ||
4024 IK.getLanguage() == Language::LLVM_IR ||
4025 IK.getLanguage() == Language::CIR) {
4026 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the
4027 // PassManager in BackendUtil.cpp. They need to be initialized no matter
4028 // what the input type is.
4029 if (Args.hasArg(Ids: OPT_fobjc_arc))
4030 Opts.ObjCAutoRefCount = 1;
4031 // PICLevel and PIELevel are needed during code generation and this should
4032 // be set regardless of the input type.
4033 Opts.PICLevel = getLastArgIntValue(Args, Id: OPT_pic_level, Default: 0, Diags);
4034 Opts.PIE = Args.hasArg(Ids: OPT_pic_is_pie);
4035 parseSanitizerKinds(FlagName: "-fsanitize=", Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_EQ),
4036 Diags, S&: Opts.Sanitize);
4037 parseSanitizerKinds(
4038 FlagName: "-fsanitize-ignore-for-ubsan-feature=",
4039 Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_ignore_for_ubsan_feature_EQ), Diags,
4040 S&: Opts.UBSanFeatureIgnoredSanitize);
4041
4042 return Diags.getNumErrors() == NumErrorsBefore;
4043 }
4044
4045 // Other LangOpts are only initialized when the input is not AST or LLVM IR.
4046 // FIXME: Should we really be parsing this for an Language::Asm input?
4047
4048 // FIXME: Cleanup per-file based stuff.
4049 LangStandard::Kind LangStd = LangStandard::lang_unspecified;
4050 if (const Arg *A = Args.getLastArg(Ids: OPT_std_EQ)) {
4051 LangStd = LangStandard::getLangKind(Name: A->getValue());
4052 if (LangStd == LangStandard::lang_unspecified) {
4053 Diags.Report(DiagID: diag::err_drv_invalid_value)
4054 << A->getAsString(Args) << A->getValue();
4055 // Report supported standards with short description.
4056 for (unsigned KindValue = 0;
4057 KindValue != LangStandard::lang_unspecified;
4058 ++KindValue) {
4059 const LangStandard &Std = LangStandard::getLangStandardForKind(
4060 K: static_cast<LangStandard::Kind>(KindValue));
4061 if (IsInputCompatibleWithStandard(IK, S: Std)) {
4062 auto Diag = Diags.Report(DiagID: diag::note_drv_use_standard);
4063 Diag << Std.getName() << Std.getDescription();
4064 unsigned NumAliases = 0;
4065#define LANGSTANDARD(id, name, lang, desc, features, version)
4066#define LANGSTANDARD_ALIAS(id, alias) \
4067 if (KindValue == LangStandard::lang_##id) ++NumAliases;
4068#define LANGSTANDARD_ALIAS_DEPR(id, alias)
4069#include "clang/Basic/LangStandards.def"
4070 Diag << NumAliases;
4071#define LANGSTANDARD(id, name, lang, desc, features, version)
4072#define LANGSTANDARD_ALIAS(id, alias) \
4073 if (KindValue == LangStandard::lang_##id) Diag << alias;
4074#define LANGSTANDARD_ALIAS_DEPR(id, alias)
4075#include "clang/Basic/LangStandards.def"
4076 }
4077 }
4078 } else {
4079 // Valid standard, check to make sure language and standard are
4080 // compatible.
4081 const LangStandard &Std = LangStandard::getLangStandardForKind(K: LangStd);
4082 if (!IsInputCompatibleWithStandard(IK, S: Std)) {
4083 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
4084 << A->getAsString(Args) << GetInputKindName(IK);
4085 }
4086 }
4087 }
4088
4089 // -cl-std only applies for OpenCL language standards.
4090 // Override the -std option in this case.
4091 if (const Arg *A = Args.getLastArg(Ids: OPT_cl_std_EQ)) {
4092 LangStandard::Kind OpenCLLangStd =
4093 llvm::StringSwitch<LangStandard::Kind>(A->getValue())
4094 .Cases(CaseStrings: {"cl", "CL"}, Value: LangStandard::lang_opencl10)
4095 .Cases(CaseStrings: {"cl1.0", "CL1.0"}, Value: LangStandard::lang_opencl10)
4096 .Cases(CaseStrings: {"cl1.1", "CL1.1"}, Value: LangStandard::lang_opencl11)
4097 .Cases(CaseStrings: {"cl1.2", "CL1.2"}, Value: LangStandard::lang_opencl12)
4098 .Cases(CaseStrings: {"cl2.0", "CL2.0"}, Value: LangStandard::lang_opencl20)
4099 .Cases(CaseStrings: {"cl3.0", "CL3.0"}, Value: LangStandard::lang_opencl30)
4100 .Cases(CaseStrings: {"cl3.1", "CL3.1"}, Value: LangStandard::lang_opencl31)
4101 .Cases(CaseStrings: {"clc++", "CLC++"}, Value: LangStandard::lang_openclcpp10)
4102 .Cases(CaseStrings: {"clc++1.0", "CLC++1.0"}, Value: LangStandard::lang_openclcpp10)
4103 .Cases(CaseStrings: {"clc++2021", "CLC++2021"}, Value: LangStandard::lang_openclcpp2021)
4104 .Default(Value: LangStandard::lang_unspecified);
4105
4106 if (OpenCLLangStd == LangStandard::lang_unspecified) {
4107 Diags.Report(DiagID: diag::err_drv_invalid_value)
4108 << A->getAsString(Args) << A->getValue();
4109 }
4110 else
4111 LangStd = OpenCLLangStd;
4112 }
4113
4114 // These need to be parsed now. They are used to set OpenCL defaults.
4115 Opts.IncludeDefaultHeader = Args.hasArg(Ids: OPT_finclude_default_header);
4116 Opts.DeclareOpenCLBuiltins = Args.hasArg(Ids: OPT_fdeclare_opencl_builtins);
4117
4118 LangOptions::setLangDefaults(Opts, Lang: IK.getLanguage(), T, Includes, LangStd);
4119
4120 // The key paths of codegen options defined in Options.td start with
4121 // "LangOpts->". Let's provide the expected variable name and type.
4122 LangOptions *LangOpts = &Opts;
4123
4124#define LANG_OPTION_WITH_MARSHALLING(...) \
4125 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
4126#include "clang/Options/Options.inc"
4127#undef LANG_OPTION_WITH_MARSHALLING
4128
4129 // "Modules semantics" (e.g. cross-translation-unit declaration merging) are
4130 // needed for both Clang (header) modules and C++20 modules, so enable them
4131 // for either.
4132 Opts.Modules = Opts.ClangModules || Opts.CPlusPlusModules;
4133
4134 if (const Arg *A = Args.getLastArg(Ids: OPT_fcf_protection_EQ)) {
4135 StringRef Name = A->getValue();
4136 if (Name == "full") {
4137 Opts.CFProtectionBranch = 1;
4138 Opts.CFProtectionReturn = 1;
4139 } else if (Name == "branch") {
4140 Opts.CFProtectionBranch = 1;
4141 } else if (Name == "return") {
4142 Opts.CFProtectionReturn = 1;
4143 }
4144 }
4145
4146 if (Opts.CFProtectionBranch) {
4147 if (const Arg *A = Args.getLastArg(Ids: OPT_mcf_branch_label_scheme_EQ)) {
4148 const auto Scheme =
4149 llvm::StringSwitch<CFBranchLabelSchemeKind>(A->getValue())
4150#define CF_BRANCH_LABEL_SCHEME(Kind, FlagVal) \
4151 .Case(#FlagVal, CFBranchLabelSchemeKind::Kind)
4152#include "clang/Basic/CFProtectionOptions.def"
4153 .Default(Value: CFBranchLabelSchemeKind::Default);
4154 Opts.setCFBranchLabelScheme(Scheme);
4155 }
4156 }
4157
4158 if ((Args.hasArg(Ids: OPT_fsycl_is_device) || Args.hasArg(Ids: OPT_fsycl_is_host)) &&
4159 !Args.hasArg(Ids: OPT_sycl_std_EQ)) {
4160 // If the user supplied -fsycl-is-device or -fsycl-is-host, but failed to
4161 // provide -sycl-std=, we want to default it to whatever the default SYCL
4162 // version is. I could not find a way to express this with the options
4163 // tablegen because we still want this value to be SYCL_None when the user
4164 // is not in device or host mode.
4165 Opts.setSYCLVersion(LangOptions::SYCL_Default);
4166 }
4167
4168 if (Opts.ObjC) {
4169 if (Arg *arg = Args.getLastArg(Ids: OPT_fobjc_runtime_EQ)) {
4170 StringRef value = arg->getValue();
4171 if (Opts.ObjCRuntime.tryParse(input: value))
4172 Diags.Report(DiagID: diag::err_drv_unknown_objc_runtime) << value;
4173 }
4174
4175 if (Args.hasArg(Ids: OPT_fobjc_gc_only))
4176 Opts.setGC(LangOptions::GCOnly);
4177 else if (Args.hasArg(Ids: OPT_fobjc_gc))
4178 Opts.setGC(LangOptions::HybridGC);
4179 else if (Args.hasArg(Ids: OPT_fobjc_arc)) {
4180 Opts.ObjCAutoRefCount = 1;
4181 if (!Opts.ObjCRuntime.allowsARC())
4182 Diags.Report(DiagID: diag::err_arc_unsupported_on_runtime);
4183 }
4184
4185 // ObjCWeakRuntime tracks whether the runtime supports __weak, not
4186 // whether the feature is actually enabled. This is predominantly
4187 // determined by -fobjc-runtime, but we allow it to be overridden
4188 // from the command line for testing purposes.
4189 if (Args.hasArg(Ids: OPT_fobjc_runtime_has_weak))
4190 Opts.ObjCWeakRuntime = 1;
4191 else
4192 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak();
4193
4194 // ObjCWeak determines whether __weak is actually enabled.
4195 // Note that we allow -fno-objc-weak to disable this even in ARC mode.
4196 if (auto weakArg = Args.getLastArg(Ids: OPT_fobjc_weak, Ids: OPT_fno_objc_weak)) {
4197 if (!weakArg->getOption().matches(ID: OPT_fobjc_weak)) {
4198 assert(!Opts.ObjCWeak);
4199 } else if (Opts.getGC() != LangOptions::NonGC) {
4200 Diags.Report(DiagID: diag::err_objc_weak_with_gc);
4201 } else if (!Opts.ObjCWeakRuntime) {
4202 Diags.Report(DiagID: diag::err_objc_weak_unsupported);
4203 } else {
4204 Opts.ObjCWeak = 1;
4205 }
4206 } else if (Opts.ObjCAutoRefCount) {
4207 Opts.ObjCWeak = Opts.ObjCWeakRuntime;
4208 }
4209
4210 if (Args.hasArg(Ids: OPT_fobjc_subscripting_legacy_runtime))
4211 Opts.ObjCSubscriptingLegacyRuntime =
4212 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX);
4213 }
4214
4215 if (Arg *A = Args.getLastArg(Ids: options::OPT_fgnuc_version_EQ)) {
4216 // Check that the version has 1 to 3 components and the minor and patch
4217 // versions fit in two decimal digits.
4218 VersionTuple GNUCVer;
4219 bool Invalid = GNUCVer.tryParse(string: A->getValue());
4220 unsigned Major = GNUCVer.getMajor();
4221 unsigned Minor = GNUCVer.getMinor().value_or(u: 0);
4222 unsigned Patch = GNUCVer.getSubminor().value_or(u: 0);
4223 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) {
4224 Diags.Report(DiagID: diag::err_drv_invalid_value)
4225 << A->getAsString(Args) << A->getValue();
4226 }
4227 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch;
4228 }
4229
4230 if (T.isOSAIX() && (Args.hasArg(Ids: OPT_mignore_xcoff_visibility)))
4231 Opts.IgnoreXCOFFVisibility = 1;
4232
4233 if (Args.hasArg(Ids: OPT_ftrapv)) {
4234 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
4235 // Set the handler, if one is specified.
4236 Opts.OverflowHandler =
4237 std::string(Args.getLastArgValue(Id: OPT_ftrapv_handler));
4238 } else if (Args.hasFlag(Pos: OPT_fwrapv, Neg: OPT_fno_wrapv, Default: Opts.MSVCCompat)) {
4239 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
4240 }
4241 if (Args.hasArg(Ids: OPT_fwrapv_pointer))
4242 Opts.PointerOverflowDefined = true;
4243
4244 Opts.MSCompatibilityVersion = 0;
4245 if (const Arg *A = Args.getLastArg(Ids: OPT_fms_compatibility_version)) {
4246 VersionTuple VT;
4247 if (VT.tryParse(string: A->getValue()))
4248 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args)
4249 << A->getValue();
4250 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 +
4251 VT.getMinor().value_or(u: 0) * 100000 +
4252 VT.getSubminor().value_or(u: 0);
4253 }
4254
4255 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs
4256 // is specified, or -std is set to a conforming mode.
4257 // Trigraphs are disabled by default in C++17 and C23 onwards.
4258 // For z/OS, trigraphs are enabled by default (without regard to the above).
4259 Opts.Trigraphs =
4260 (!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17 && !Opts.C23) ||
4261 T.isOSzOS();
4262 Opts.Trigraphs =
4263 Args.hasFlag(Pos: OPT_ftrigraphs, Neg: OPT_fno_trigraphs, Default: Opts.Trigraphs);
4264
4265 Opts.ZOSExt =
4266 Args.hasFlag(Pos: OPT_fzos_extensions, Neg: OPT_fno_zos_extensions, Default: T.isOSzOS());
4267
4268 Opts.Blocks = Args.hasArg(Ids: OPT_fblocks) || (Opts.OpenCL
4269 && Opts.OpenCLVersion == 200);
4270
4271 bool HasConvergentOperations = Opts.isTargetDevice() || Opts.OpenCL ||
4272 Opts.HLSL || T.isAMDGPU() || T.isNVPTX();
4273 Opts.ConvergentFunctions =
4274 Args.hasFlag(Pos: OPT_fconvergent_functions, Neg: OPT_fno_convergent_functions,
4275 Default: HasConvergentOperations);
4276
4277 Opts.NoBuiltin = Args.hasArg(Ids: OPT_fno_builtin) || Opts.Freestanding;
4278 if (!Opts.NoBuiltin)
4279 getAllNoBuiltinFuncValues(Args, Funcs&: Opts.NoBuiltinFuncs);
4280 if (Arg *A = Args.getLastArg(Ids: options::OPT_LongDouble_Group)) {
4281 if (A->getOption().matches(ID: options::OPT_mlong_double_64))
4282 Opts.LongDoubleSize = 64;
4283 else if (A->getOption().matches(ID: options::OPT_mlong_double_80))
4284 Opts.LongDoubleSize = 80;
4285 else if (A->getOption().matches(ID: options::OPT_mlong_double_128))
4286 Opts.LongDoubleSize = 128;
4287 else
4288 Opts.LongDoubleSize = 0;
4289 }
4290 if (Opts.FastRelaxedMath || Opts.CLUnsafeMath)
4291 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast);
4292
4293 llvm::sort(C&: Opts.ModuleFeatures);
4294
4295 // -mrtd option
4296 if (Arg *A = Args.getLastArg(Ids: OPT_mrtd)) {
4297 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None)
4298 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
4299 << A->getSpelling() << "-fdefault-calling-conv";
4300 else {
4301 switch (T.getArch()) {
4302 case llvm::Triple::x86:
4303 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall);
4304 break;
4305 case llvm::Triple::m68k:
4306 Opts.setDefaultCallingConv(LangOptions::DCC_RtdCall);
4307 break;
4308 default:
4309 Diags.Report(DiagID: diag::err_drv_argument_not_allowed_with)
4310 << A->getSpelling() << T.getTriple();
4311 }
4312 }
4313 }
4314
4315 // Check if -fopenmp is specified and set default version to 5.1.
4316 Opts.OpenMP = Args.hasArg(Ids: OPT_fopenmp) ? 51 : 0;
4317 // Check if -fopenmp-simd is specified.
4318 bool IsSimdSpecified =
4319 Args.hasFlag(Pos: options::OPT_fopenmp_simd, Neg: options::OPT_fno_openmp_simd,
4320 /*Default=*/false);
4321 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified;
4322 Opts.OpenMPUseTLS =
4323 Opts.OpenMP && !Args.hasArg(Ids: options::OPT_fnoopenmp_use_tls);
4324 Opts.OpenMPIsTargetDevice =
4325 Opts.OpenMP && Args.hasArg(Ids: options::OPT_fopenmp_is_target_device);
4326 Opts.OpenMPIRBuilder =
4327 Opts.OpenMP && Args.hasArg(Ids: options::OPT_fopenmp_enable_irbuilder);
4328 bool IsTargetSpecified =
4329 Opts.OpenMPIsTargetDevice || Args.hasArg(Ids: options::OPT_offload_targets_EQ);
4330
4331 if (Opts.OpenMP || Opts.OpenMPSimd) {
4332 if (int Version = getLastArgIntValue(
4333 Args, Id: OPT_fopenmp_version_EQ,
4334 Default: (IsSimdSpecified || IsTargetSpecified) ? 51 : Opts.OpenMP, Diags))
4335 Opts.OpenMP = Version;
4336 // Provide diagnostic when a given target is not expected to be an OpenMP
4337 // device or host.
4338 if (!Opts.OpenMPIsTargetDevice) {
4339 switch (T.getArch()) {
4340 default:
4341 break;
4342 // Add unsupported host targets here:
4343 case llvm::Triple::nvptx:
4344 case llvm::Triple::nvptx64:
4345 Diags.Report(DiagID: diag::err_drv_omp_host_target_not_supported) << T.str();
4346 break;
4347 }
4348 }
4349 }
4350
4351 // Set the flag to prevent the implementation from emitting device exception
4352 // handling code for those requiring so.
4353 if ((Opts.OpenMPIsTargetDevice && T.isGPU()) || Opts.OpenCLCPlusPlus) {
4354
4355 Opts.Exceptions = 0;
4356 Opts.CXXExceptions = 0;
4357 }
4358 if (Opts.OpenMPIsTargetDevice && T.isNVPTX()) {
4359 Opts.OpenMPCUDANumSMs =
4360 getLastArgIntValue(Args, Id: options::OPT_fopenmp_cuda_number_of_sm_EQ,
4361 Default: Opts.OpenMPCUDANumSMs, Diags);
4362 Opts.OpenMPCUDABlocksPerSM =
4363 getLastArgIntValue(Args, Id: options::OPT_fopenmp_cuda_blocks_per_sm_EQ,
4364 Default: Opts.OpenMPCUDABlocksPerSM, 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_offload_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 // Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options
4418 Opts.OpenMPCUDAMode = Opts.OpenMPIsTargetDevice &&
4419 (T.isNVPTX() || T.isAMDGCN()) &&
4420 Args.hasArg(Ids: options::OPT_fopenmp_cuda_mode);
4421
4422 // OpenACC Configuration.
4423 if (Args.hasArg(Ids: options::OPT_fopenacc))
4424 Opts.OpenACC = true;
4425
4426 if (Arg *A = Args.getLastArg(Ids: OPT_ffp_contract)) {
4427 StringRef Val = A->getValue();
4428 if (Val == "fast")
4429 Opts.setDefaultFPContractMode(LangOptions::FPM_Fast);
4430 else if (Val == "on")
4431 Opts.setDefaultFPContractMode(LangOptions::FPM_On);
4432 else if (Val == "off")
4433 Opts.setDefaultFPContractMode(LangOptions::FPM_Off);
4434 else if (Val == "fast-honor-pragmas")
4435 Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas);
4436 else
4437 Diags.Report(DiagID: diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
4438 }
4439
4440 if (auto *A =
4441 Args.getLastArg(Ids: OPT_fsanitize_undefined_ignore_overflow_pattern_EQ)) {
4442 for (int i = 0, n = A->getNumValues(); i != n; ++i) {
4443 Opts.OverflowPatternExclusionMask |=
4444 llvm::StringSwitch<unsigned>(A->getValue(N: i))
4445 .Case(S: "none", Value: LangOptionsBase::None)
4446 .Case(S: "all", Value: LangOptionsBase::All)
4447 .Case(S: "add-unsigned-overflow-test",
4448 Value: LangOptionsBase::AddUnsignedOverflowTest)
4449 .Case(S: "add-signed-overflow-test",
4450 Value: LangOptionsBase::AddSignedOverflowTest)
4451 .Case(S: "negated-unsigned-const", Value: LangOptionsBase::NegUnsignedConst)
4452 .Case(S: "unsigned-post-decr-while",
4453 Value: LangOptionsBase::PostDecrInWhile)
4454 .Default(Value: 0);
4455 }
4456 }
4457
4458 // Parse -fsanitize= arguments.
4459 parseSanitizerKinds(FlagName: "-fsanitize=", Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_EQ),
4460 Diags, S&: Opts.Sanitize);
4461 parseSanitizerKinds(
4462 FlagName: "-fsanitize-ignore-for-ubsan-feature=",
4463 Sanitizers: Args.getAllArgValues(Id: OPT_fsanitize_ignore_for_ubsan_feature_EQ), Diags,
4464 S&: Opts.UBSanFeatureIgnoredSanitize);
4465 Opts.NoSanitizeFiles = Args.getAllArgValues(Id: OPT_fsanitize_ignorelist_EQ);
4466 std::vector<std::string> systemIgnorelists =
4467 Args.getAllArgValues(Id: OPT_fsanitize_system_ignorelist_EQ);
4468 Opts.NoSanitizeFiles.insert(position: Opts.NoSanitizeFiles.end(),
4469 first: systemIgnorelists.begin(),
4470 last: systemIgnorelists.end());
4471
4472 if (Arg *A = Args.getLastArg(Ids: OPT_fclang_abi_compat_EQ)) {
4473 Opts.setClangABICompat(LangOptions::ClangABI::Latest);
4474
4475 StringRef Ver = A->getValue();
4476 std::pair<StringRef, StringRef> VerParts = Ver.split(Separator: '.');
4477 int Major, Minor = 0;
4478
4479 // Check the version number is valid: either 3.x (0 <= x <= 9) or
4480 // y or y.0 (4 <= y <= current version).
4481 if (!VerParts.first.starts_with(Prefix: "0") &&
4482 !VerParts.first.getAsInteger(Radix: 10, Result&: Major) && 3 <= Major &&
4483 Major <= MAX_CLANG_ABI_COMPAT_VERSION &&
4484 (Major == 3
4485 ? VerParts.second.size() == 1 &&
4486 !VerParts.second.getAsInteger(Radix: 10, Result&: Minor)
4487 : VerParts.first.size() == Ver.size() || VerParts.second == "0")) {
4488 // Got a valid version number.
4489#define ABI_VER_MAJOR_MINOR(Major_, Minor_) \
4490 if (std::tuple(Major, Minor) <= std::tuple(Major_, Minor_)) \
4491 Opts.setClangABICompat(LangOptions::ClangABI::Ver##Major_##_##Minor_); \
4492 else
4493#define ABI_VER_MAJOR(Major_) \
4494 if (Major <= Major_) \
4495 Opts.setClangABICompat(LangOptions::ClangABI::Ver##Major_); \
4496 else
4497#define ABI_VER_LATEST(Latest) \
4498 { /* Equivalent to latest version - do nothing */ \
4499 }
4500#include "clang/Basic/ABIVersions.def"
4501 } else if (Ver != "latest") {
4502 Diags.Report(DiagID: diag::err_drv_invalid_value)
4503 << A->getAsString(Args) << A->getValue();
4504 }
4505 }
4506
4507 if (Arg *A = Args.getLastArg(Ids: OPT_msign_return_address_EQ)) {
4508 StringRef SignScope = A->getValue();
4509
4510 if (SignScope.equals_insensitive(RHS: "none"))
4511 Opts.setSignReturnAddressScope(
4512 LangOptions::SignReturnAddressScopeKind::None);
4513 else if (SignScope.equals_insensitive(RHS: "all"))
4514 Opts.setSignReturnAddressScope(
4515 LangOptions::SignReturnAddressScopeKind::All);
4516 else if (SignScope.equals_insensitive(RHS: "non-leaf"))
4517 Opts.setSignReturnAddressScope(
4518 LangOptions::SignReturnAddressScopeKind::NonLeaf);
4519 else
4520 Diags.Report(DiagID: diag::err_drv_invalid_value)
4521 << A->getAsString(Args) << SignScope;
4522
4523 if (Arg *A = Args.getLastArg(Ids: OPT_msign_return_address_key_EQ)) {
4524 StringRef SignKey = A->getValue();
4525 if (!SignScope.empty() && !SignKey.empty()) {
4526 if (SignKey == "a_key")
4527 Opts.setSignReturnAddressKey(
4528 LangOptions::SignReturnAddressKeyKind::AKey);
4529 else if (SignKey == "b_key")
4530 Opts.setSignReturnAddressKey(
4531 LangOptions::SignReturnAddressKeyKind::BKey);
4532 else
4533 Diags.Report(DiagID: diag::err_drv_invalid_value)
4534 << A->getAsString(Args) << SignKey;
4535 }
4536 }
4537 }
4538
4539 // The value can be empty, which indicates the system default should be used.
4540 StringRef CXXABI = Args.getLastArgValue(Id: OPT_fcxx_abi_EQ);
4541 if (!CXXABI.empty()) {
4542 if (!TargetCXXABI::isABI(Name: CXXABI)) {
4543 Diags.Report(DiagID: diag::err_invalid_cxx_abi) << CXXABI;
4544 } else {
4545 auto Kind = TargetCXXABI::getKind(Name: CXXABI);
4546 if (!TargetCXXABI::isSupportedCXXABI(T, Kind))
4547 Diags.Report(DiagID: diag::err_unsupported_cxx_abi) << CXXABI << T.str();
4548 else
4549 Opts.CXXABI = Kind;
4550 }
4551 }
4552
4553 Opts.RelativeCXXABIVTables =
4554 Args.hasFlag(Pos: options::OPT_fexperimental_relative_cxx_abi_vtables,
4555 Neg: options::OPT_fno_experimental_relative_cxx_abi_vtables,
4556 Default: TargetCXXABI::usesRelativeVTables(T));
4557
4558 // RTTI is on by default.
4559 bool HasRTTI = !Args.hasArg(Ids: options::OPT_fno_rtti);
4560 Opts.OmitVTableRTTI =
4561 Args.hasFlag(Pos: options::OPT_fexperimental_omit_vtable_rtti,
4562 Neg: options::OPT_fno_experimental_omit_vtable_rtti, Default: false);
4563 if (Opts.OmitVTableRTTI && HasRTTI)
4564 Diags.Report(DiagID: diag::err_drv_using_omit_rtti_component_without_no_rtti);
4565
4566 for (const auto &A : Args.getAllArgValues(Id: OPT_fmacro_prefix_map_EQ)) {
4567 auto Split = StringRef(A).split(Separator: '=');
4568 Opts.MacroPrefixMap.insert(
4569 x: {std::string(Split.first), std::string(Split.second)});
4570 }
4571
4572 Opts.UseTargetPathSeparator =
4573 !Args.getLastArg(Ids: OPT_fno_file_reproducible) &&
4574 (Args.getLastArg(Ids: OPT_ffile_compilation_dir_EQ) ||
4575 Args.getLastArg(Ids: OPT_fmacro_prefix_map_EQ) ||
4576 Args.getLastArg(Ids: OPT_ffile_reproducible));
4577
4578 // Error if -mvscale-min is unbounded.
4579 if (Arg *A = Args.getLastArg(Ids: options::OPT_mvscale_min_EQ)) {
4580 unsigned VScaleMin;
4581 if (StringRef(A->getValue()).getAsInteger(Radix: 10, Result&: VScaleMin) || VScaleMin == 0)
4582 Diags.Report(DiagID: diag::err_cc1_unbounded_vscale_min);
4583 }
4584 if (Arg *A = Args.getLastArg(Ids: options::OPT_mvscale_streaming_min_EQ)) {
4585 unsigned VScaleMin;
4586 if (StringRef(A->getValue()).getAsInteger(Radix: 10, Result&: VScaleMin) || VScaleMin == 0)
4587 Diags.Report(DiagID: diag::err_cc1_unbounded_vscale_min);
4588 }
4589
4590 if (const Arg *A = Args.getLastArg(Ids: OPT_frandomize_layout_seed_file_EQ)) {
4591 std::ifstream SeedFile(A->getValue(N: 0));
4592
4593 if (!SeedFile.is_open())
4594 Diags.Report(DiagID: diag::err_drv_cannot_open_randomize_layout_seed_file)
4595 << A->getValue(N: 0);
4596
4597 std::getline(is&: SeedFile, str&: Opts.RandstructSeed);
4598 }
4599
4600 if (const Arg *A = Args.getLastArg(Ids: OPT_frandomize_layout_seed_EQ))
4601 Opts.RandstructSeed = A->getValue(N: 0);
4602
4603 if (const auto *Arg = Args.getLastArg(Ids: options::OPT_falloc_token_max_EQ)) {
4604 StringRef S = Arg->getValue();
4605 uint64_t Value = 0;
4606 if (S.getAsInteger(Radix: 0, Result&: Value))
4607 Diags.Report(DiagID: diag::err_drv_invalid_value) << Arg->getAsString(Args) << S;
4608 else
4609 Opts.AllocTokenMax = Value;
4610 }
4611
4612 if (const auto *Arg = Args.getLastArg(Ids: options::OPT_falloc_token_mode_EQ)) {
4613 StringRef S = Arg->getValue();
4614 if (auto Mode = getAllocTokenModeFromString(Name: S))
4615 Opts.AllocTokenMode = Mode;
4616 else
4617 Diags.Report(DiagID: diag::err_drv_invalid_value) << Arg->getAsString(Args) << S;
4618 }
4619
4620 // Enable options for matrix types.
4621 if (Opts.MatrixTypes) {
4622 if (const Arg *A = Args.getLastArg(Ids: OPT_fmatrix_memory_layout_EQ)) {
4623 StringRef ClangValue = A->getValue();
4624 if (ClangValue == "row-major")
4625 Opts.setDefaultMatrixMemoryLayout(
4626 LangOptions::MatrixMemoryLayout::MatrixRowMajor);
4627 else
4628 Opts.setDefaultMatrixMemoryLayout(
4629 LangOptions::MatrixMemoryLayout::MatrixColMajor);
4630
4631 for (Arg *A : Args.filtered(Ids: options::OPT_mllvm)) {
4632 StringRef OptValue = A->getValue();
4633 if (OptValue.consume_front(Prefix: "-matrix-default-layout=") &&
4634 ClangValue != OptValue)
4635 Diags.Report(DiagID: diag::err_conflicting_matrix_layout_flags)
4636 << ClangValue << OptValue;
4637 }
4638 }
4639 }
4640
4641 // Validate options for HLSL
4642 if (Opts.HLSL) {
4643 // TODO: Revisit restricting SPIR-V to logical once we've figured out how to
4644 // handle PhysicalStorageBuffer64 memory model
4645 if (T.isDXIL() || T.isSPIRVLogical()) {
4646 enum { ShaderModel, VulkanEnv, ShaderStage };
4647 enum { OS, Environment };
4648
4649 int ExpectedOS = T.isSPIRVLogical() ? VulkanEnv : ShaderModel;
4650
4651 if (T.getOSName().empty()) {
4652 Diags.Report(DiagID: diag::err_drv_hlsl_bad_shader_required_in_target)
4653 << ExpectedOS << OS << T.str();
4654 } else if (T.getEnvironmentName().empty()) {
4655 Diags.Report(DiagID: diag::err_drv_hlsl_bad_shader_required_in_target)
4656 << ShaderStage << Environment << T.str();
4657 } else if (!T.isShaderStageEnvironment()) {
4658 Diags.Report(DiagID: diag::err_drv_hlsl_bad_shader_unsupported)
4659 << ShaderStage << T.getEnvironmentName() << T.str();
4660 }
4661
4662 if (T.isDXIL()) {
4663 if (!T.isShaderModelOS() || T.getOSVersion() == VersionTuple(0)) {
4664 Diags.Report(DiagID: diag::err_drv_hlsl_bad_shader_unsupported)
4665 << ShaderModel << T.getOSName() << T.str();
4666 }
4667 // Validate that if fnative-half-type is given, that
4668 // the language standard is at least hlsl2018, and that
4669 // the target shader model is at least 6.2.
4670 if (Args.getLastArg(Ids: OPT_fnative_half_type) ||
4671 Args.getLastArg(Ids: OPT_fnative_int16_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 Args.getLastArg(Ids: OPT_fnative_int16_type)) {
4687 const char *Str = Args.getLastArg(Ids: OPT_fnative_half_type)
4688 ? "-fnative-half-type"
4689 : "-fnative-int16-type";
4690 const LangStandard &Std =
4691 LangStandard::getLangStandardForKind(K: Opts.LangStd);
4692 if (!(Opts.LangStd >= LangStandard::lang_hlsl2018))
4693 Diags.Report(DiagID: diag::err_drv_hlsl_16bit_types_unsupported)
4694 << Str << false << Std.getName();
4695 }
4696 } else {
4697 llvm_unreachable("expected DXIL or SPIR-V target");
4698 }
4699 } else
4700 Diags.Report(DiagID: diag::err_drv_hlsl_unsupported_target) << T.str();
4701
4702 if (Opts.LangStd < LangStandard::lang_hlsl202x) {
4703 const LangStandard &Requested =
4704 LangStandard::getLangStandardForKind(K: Opts.LangStd);
4705 const LangStandard &Recommended =
4706 LangStandard::getLangStandardForKind(K: LangStandard::lang_hlsl202x);
4707 Diags.Report(DiagID: diag::warn_hlsl_langstd_minimal)
4708 << Requested.getName() << Recommended.getName();
4709 }
4710 }
4711
4712 return Diags.getNumErrors() == NumErrorsBefore;
4713}
4714
4715static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) {
4716 switch (Action) {
4717 case frontend::ASTDeclList:
4718 case frontend::ASTDump:
4719 case frontend::ASTPrint:
4720 case frontend::ASTView:
4721 case frontend::EmitAssembly:
4722 case frontend::EmitBC:
4723 case frontend::EmitCIR:
4724 case frontend::EmitHTML:
4725 case frontend::EmitLLVM:
4726 case frontend::EmitLLVMOnly:
4727 case frontend::EmitCodeGenOnly:
4728 case frontend::EmitObj:
4729 case frontend::ExtractAPI:
4730 case frontend::FixIt:
4731 case frontend::GenerateModule:
4732 case frontend::GenerateModuleInterface:
4733 case frontend::GenerateReducedModuleInterface:
4734 case frontend::GenerateHeaderUnit:
4735 case frontend::GeneratePCH:
4736 case frontend::GenerateInterfaceStubs:
4737 case frontend::ParseSyntaxOnly:
4738 case frontend::ModuleFileInfo:
4739 case frontend::VerifyPCH:
4740 case frontend::PluginAction:
4741 case frontend::RewriteObjC:
4742 case frontend::RewriteTest:
4743 case frontend::RunAnalysis:
4744 return false;
4745
4746 case frontend::DumpCompilerOptions:
4747 case frontend::DumpRawTokens:
4748 case frontend::DumpTokens:
4749 case frontend::InitOnly:
4750 case frontend::PrintPreamble:
4751 case frontend::PrintPreprocessedInput:
4752 case frontend::RewriteMacros:
4753 case frontend::RunPreprocessorOnly:
4754 case frontend::PrintDependencyDirectivesSourceMinimizerOutput:
4755 return true;
4756 }
4757 llvm_unreachable("invalid frontend action");
4758}
4759
4760static bool isCodeGenAction(frontend::ActionKind Action) {
4761 switch (Action) {
4762 case frontend::EmitAssembly:
4763 case frontend::EmitBC:
4764 case frontend::EmitCIR:
4765 case frontend::EmitHTML:
4766 case frontend::EmitLLVM:
4767 case frontend::EmitLLVMOnly:
4768 case frontend::EmitCodeGenOnly:
4769 case frontend::EmitObj:
4770 case frontend::GenerateModule:
4771 case frontend::GenerateModuleInterface:
4772 case frontend::GenerateReducedModuleInterface:
4773 case frontend::GenerateHeaderUnit:
4774 case frontend::GeneratePCH:
4775 case frontend::GenerateInterfaceStubs:
4776 return true;
4777 case frontend::ASTDeclList:
4778 case frontend::ASTDump:
4779 case frontend::ASTPrint:
4780 case frontend::ASTView:
4781 case frontend::ExtractAPI:
4782 case frontend::FixIt:
4783 case frontend::ParseSyntaxOnly:
4784 case frontend::ModuleFileInfo:
4785 case frontend::VerifyPCH:
4786 case frontend::PluginAction:
4787 case frontend::RewriteObjC:
4788 case frontend::RewriteTest:
4789 case frontend::RunAnalysis:
4790 case frontend::DumpCompilerOptions:
4791 case frontend::DumpRawTokens:
4792 case frontend::DumpTokens:
4793 case frontend::InitOnly:
4794 case frontend::PrintPreamble:
4795 case frontend::PrintPreprocessedInput:
4796 case frontend::RewriteMacros:
4797 case frontend::RunPreprocessorOnly:
4798 case frontend::PrintDependencyDirectivesSourceMinimizerOutput:
4799 return false;
4800 }
4801 llvm_unreachable("invalid frontend action");
4802}
4803
4804static void GeneratePreprocessorArgs(const PreprocessorOptions &Opts,
4805 ArgumentConsumer Consumer,
4806 const LangOptions &LangOpts,
4807 const FrontendOptions &FrontendOpts,
4808 const CodeGenOptions &CodeGenOpts) {
4809 const PreprocessorOptions *PreprocessorOpts = &Opts;
4810
4811#define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \
4812 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
4813#include "clang/Options/Options.inc"
4814#undef PREPROCESSOR_OPTION_WITH_MARSHALLING
4815
4816 if (Opts.PCHWithHdrStop && !Opts.PCHWithHdrStopCreate)
4817 GenerateArg(Consumer, OptSpecifier: OPT_pch_through_hdrstop_use);
4818
4819 for (const auto &D : Opts.DeserializedPCHDeclsToErrorOn)
4820 GenerateArg(Consumer, OptSpecifier: OPT_error_on_deserialized_pch_decl, Value: D);
4821
4822 if (Opts.PrecompiledPreambleBytes != std::make_pair(x: 0u, y: false))
4823 GenerateArg(Consumer, OptSpecifier: OPT_preamble_bytes_EQ,
4824 Value: Twine(Opts.PrecompiledPreambleBytes.first) + "," +
4825 (Opts.PrecompiledPreambleBytes.second ? "1" : "0"));
4826
4827 for (const auto &M : Opts.Macros) {
4828 // Don't generate __CET__ macro definitions. They are implied by the
4829 // -fcf-protection option that is generated elsewhere.
4830 if (M.first == "__CET__=1" && !M.second &&
4831 !CodeGenOpts.CFProtectionReturn && CodeGenOpts.CFProtectionBranch)
4832 continue;
4833 if (M.first == "__CET__=2" && !M.second && CodeGenOpts.CFProtectionReturn &&
4834 !CodeGenOpts.CFProtectionBranch)
4835 continue;
4836 if (M.first == "__CET__=3" && !M.second && CodeGenOpts.CFProtectionReturn &&
4837 CodeGenOpts.CFProtectionBranch)
4838 continue;
4839
4840 GenerateArg(Consumer, OptSpecifier: M.second ? OPT_U : OPT_D, Value: M.first);
4841 }
4842
4843 for (const auto &I : Opts.Includes) {
4844 // Don't generate OpenCL includes. They are implied by other flags that are
4845 // generated elsewhere.
4846 if (LangOpts.OpenCL && LangOpts.IncludeDefaultHeader &&
4847 ((LangOpts.DeclareOpenCLBuiltins && I == "opencl-c-base.h") ||
4848 I == "opencl-c.h"))
4849 continue;
4850 // Don't generate HLSL includes. They are implied by other flags that are
4851 // generated elsewhere.
4852 if (LangOpts.HLSL && I == "hlsl.h")
4853 continue;
4854
4855 GenerateArg(Consumer, OptSpecifier: OPT_include, Value: I);
4856 }
4857
4858 for (const auto &CI : Opts.ChainedIncludes)
4859 GenerateArg(Consumer, OptSpecifier: OPT_chain_include, Value: CI);
4860
4861 for (const auto &RF : Opts.RemappedFiles)
4862 GenerateArg(Consumer, OptSpecifier: OPT_remap_file, Value: RF.first + ";" + RF.second);
4863
4864 if (Opts.SourceDateEpoch)
4865 GenerateArg(Consumer, OptSpecifier: OPT_source_date_epoch, Value: Twine(*Opts.SourceDateEpoch));
4866
4867 if (Opts.DefineTargetOSMacros)
4868 GenerateArg(Consumer, OptSpecifier: OPT_fdefine_target_os_macros);
4869
4870 for (const auto &EmbedEntry : Opts.EmbedEntries)
4871 GenerateArg(Consumer, OptSpecifier: OPT_embed_dir_EQ, Value: EmbedEntry);
4872
4873 // Don't handle LexEditorPlaceholders. It is implied by the action that is
4874 // generated elsewhere.
4875}
4876
4877static bool ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
4878 DiagnosticsEngine &Diags,
4879 frontend::ActionKind Action,
4880 const FrontendOptions &FrontendOpts) {
4881 unsigned NumErrorsBefore = Diags.getNumErrors();
4882
4883 PreprocessorOptions *PreprocessorOpts = &Opts;
4884
4885#define PREPROCESSOR_OPTION_WITH_MARSHALLING(...) \
4886 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
4887#include "clang/Options/Options.inc"
4888#undef PREPROCESSOR_OPTION_WITH_MARSHALLING
4889
4890 Opts.PCHWithHdrStop = Args.hasArg(Ids: OPT_pch_through_hdrstop_create) ||
4891 Args.hasArg(Ids: OPT_pch_through_hdrstop_use);
4892
4893 for (const auto *A : Args.filtered(Ids: OPT_error_on_deserialized_pch_decl))
4894 Opts.DeserializedPCHDeclsToErrorOn.insert(x: A->getValue());
4895
4896 if (const Arg *A = Args.getLastArg(Ids: OPT_preamble_bytes_EQ)) {
4897 StringRef Value(A->getValue());
4898 size_t Comma = Value.find(C: ',');
4899 unsigned Bytes = 0;
4900 unsigned EndOfLine = 0;
4901
4902 if (Comma == StringRef::npos ||
4903 Value.substr(Start: 0, N: Comma).getAsInteger(Radix: 10, Result&: Bytes) ||
4904 Value.substr(Start: Comma + 1).getAsInteger(Radix: 10, Result&: EndOfLine))
4905 Diags.Report(DiagID: diag::err_drv_preamble_format);
4906 else {
4907 Opts.PrecompiledPreambleBytes.first = Bytes;
4908 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0);
4909 }
4910 }
4911
4912 // Add macros from the command line.
4913 for (const auto *A : Args.filtered(Ids: OPT_D, Ids: OPT_U)) {
4914 if (A->getOption().matches(ID: OPT_D))
4915 Opts.addMacroDef(Name: A->getValue());
4916 else
4917 Opts.addMacroUndef(Name: A->getValue());
4918 }
4919
4920 // Add the ordered list of -includes.
4921 for (const auto *A : Args.filtered(Ids: OPT_include))
4922 Opts.Includes.emplace_back(args: A->getValue());
4923
4924 for (const auto *A : Args.filtered(Ids: OPT_chain_include))
4925 Opts.ChainedIncludes.emplace_back(args: A->getValue());
4926
4927 for (const auto *A : Args.filtered(Ids: OPT_remap_file)) {
4928 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(Separator: ';');
4929
4930 if (Split.second.empty()) {
4931 Diags.Report(DiagID: diag::err_drv_invalid_remap_file) << A->getAsString(Args);
4932 continue;
4933 }
4934
4935 Opts.addRemappedFile(From: Split.first, To: Split.second);
4936 }
4937
4938 if (const Arg *A = Args.getLastArg(Ids: OPT_source_date_epoch)) {
4939 StringRef Epoch = A->getValue();
4940 // SOURCE_DATE_EPOCH, if specified, must be a non-negative decimal integer.
4941 // On time64 systems, pick 253402300799 (the UNIX timestamp of
4942 // 9999-12-31T23:59:59Z) as the upper bound.
4943 const uint64_t MaxTimestamp =
4944 std::min<uint64_t>(a: std::numeric_limits<time_t>::max(), b: 253402300799);
4945 uint64_t V;
4946 if (Epoch.getAsInteger(Radix: 10, Result&: V) || V > MaxTimestamp) {
4947 Diags.Report(DiagID: diag::err_fe_invalid_source_date_epoch)
4948 << Epoch << MaxTimestamp;
4949 } else {
4950 Opts.SourceDateEpoch = V;
4951 }
4952 }
4953
4954 for (const auto *A : Args.filtered(Ids: OPT_embed_dir_EQ)) {
4955 StringRef Val = A->getValue();
4956 Opts.EmbedEntries.push_back(x: std::string(Val));
4957 }
4958
4959 // Always avoid lexing editor placeholders when we're just running the
4960 // preprocessor as we never want to emit the
4961 // "editor placeholder in source file" error in PP only mode.
4962 if (isStrictlyPreprocessorAction(Action))
4963 Opts.LexEditorPlaceholders = false;
4964
4965 Opts.DefineTargetOSMacros =
4966 Args.hasFlag(Pos: OPT_fdefine_target_os_macros,
4967 Neg: OPT_fno_define_target_os_macros, Default: Opts.DefineTargetOSMacros);
4968
4969 return Diags.getNumErrors() == NumErrorsBefore;
4970}
4971
4972static void
4973GeneratePreprocessorOutputArgs(const PreprocessorOutputOptions &Opts,
4974 ArgumentConsumer Consumer,
4975 frontend::ActionKind Action) {
4976 const PreprocessorOutputOptions &PreprocessorOutputOpts = Opts;
4977
4978#define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \
4979 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
4980#include "clang/Options/Options.inc"
4981#undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING
4982
4983 bool Generate_dM = isStrictlyPreprocessorAction(Action) && !Opts.ShowCPP;
4984 if (Generate_dM)
4985 GenerateArg(Consumer, OptSpecifier: OPT_dM);
4986 if (!Generate_dM && Opts.ShowMacros)
4987 GenerateArg(Consumer, OptSpecifier: OPT_dD);
4988 if (Opts.DirectivesOnly)
4989 GenerateArg(Consumer, OptSpecifier: OPT_fdirectives_only);
4990}
4991
4992static bool ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
4993 ArgList &Args, DiagnosticsEngine &Diags,
4994 frontend::ActionKind Action) {
4995 unsigned NumErrorsBefore = Diags.getNumErrors();
4996
4997 PreprocessorOutputOptions &PreprocessorOutputOpts = Opts;
4998
4999#define PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING(...) \
5000 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
5001#include "clang/Options/Options.inc"
5002#undef PREPROCESSOR_OUTPUT_OPTION_WITH_MARSHALLING
5003
5004 Opts.ShowCPP = isStrictlyPreprocessorAction(Action) && !Args.hasArg(Ids: OPT_dM);
5005 Opts.ShowMacros = Args.hasArg(Ids: OPT_dM) || Args.hasArg(Ids: OPT_dD);
5006 Opts.DirectivesOnly = Args.hasArg(Ids: OPT_fdirectives_only);
5007
5008 return Diags.getNumErrors() == NumErrorsBefore;
5009}
5010
5011static void GenerateTargetArgs(const TargetOptions &Opts,
5012 ArgumentConsumer Consumer) {
5013 const TargetOptions *TargetOpts = &Opts;
5014#define TARGET_OPTION_WITH_MARSHALLING(...) \
5015 GENERATE_OPTION_WITH_MARSHALLING(Consumer, __VA_ARGS__)
5016#include "clang/Options/Options.inc"
5017#undef TARGET_OPTION_WITH_MARSHALLING
5018
5019 if (!Opts.SDKVersion.empty())
5020 GenerateArg(Consumer, OptSpecifier: OPT_target_sdk_version_EQ,
5021 Value: Opts.SDKVersion.getAsString());
5022 if (!Opts.DarwinTargetVariantSDKVersion.empty())
5023 GenerateArg(Consumer, OptSpecifier: OPT_darwin_target_variant_sdk_version_EQ,
5024 Value: Opts.DarwinTargetVariantSDKVersion.getAsString());
5025}
5026
5027static bool ParseTargetArgs(TargetOptions &Opts, ArgList &Args,
5028 DiagnosticsEngine &Diags) {
5029 unsigned NumErrorsBefore = Diags.getNumErrors();
5030
5031 TargetOptions *TargetOpts = &Opts;
5032
5033#define TARGET_OPTION_WITH_MARSHALLING(...) \
5034 PARSE_OPTION_WITH_MARSHALLING(Args, Diags, __VA_ARGS__)
5035#include "clang/Options/Options.inc"
5036#undef TARGET_OPTION_WITH_MARSHALLING
5037
5038 if (Arg *A = Args.getLastArg(Ids: options::OPT_target_sdk_version_EQ)) {
5039 llvm::VersionTuple Version;
5040 if (Version.tryParse(string: A->getValue()))
5041 Diags.Report(DiagID: diag::err_drv_invalid_value)
5042 << A->getAsString(Args) << A->getValue();
5043 else
5044 Opts.SDKVersion = Version;
5045 }
5046 if (Arg *A =
5047 Args.getLastArg(Ids: options::OPT_darwin_target_variant_sdk_version_EQ)) {
5048 llvm::VersionTuple Version;
5049 if (Version.tryParse(string: A->getValue()))
5050 Diags.Report(DiagID: diag::err_drv_invalid_value)
5051 << A->getAsString(Args) << A->getValue();
5052 else
5053 Opts.DarwinTargetVariantSDKVersion = Version;
5054 }
5055
5056 return Diags.getNumErrors() == NumErrorsBefore;
5057}
5058
5059bool CompilerInvocation::CreateFromArgsImpl(
5060 CompilerInvocation &Res, ArrayRef<const char *> CommandLineArgs,
5061 DiagnosticsEngine &Diags, const char *Argv0) {
5062 unsigned NumErrorsBefore = Diags.getNumErrors();
5063
5064 // Parse the arguments.
5065 const OptTable &Opts = getDriverOptTable();
5066 llvm::opt::Visibility VisibilityMask(options::CC1Option);
5067 unsigned MissingArgIndex, MissingArgCount;
5068 InputArgList Args = Opts.ParseArgs(Args: CommandLineArgs, MissingArgIndex,
5069 MissingArgCount, VisibilityMask);
5070 LangOptions &LangOpts = Res.getLangOpts();
5071
5072 // Check for missing argument error.
5073 if (MissingArgCount)
5074 Diags.Report(DiagID: diag::err_drv_missing_argument)
5075 << Args.getArgString(Index: MissingArgIndex) << MissingArgCount;
5076
5077 // Issue errors on unknown arguments.
5078 for (const auto *A : Args.filtered(Ids: OPT_UNKNOWN)) {
5079 auto ArgString = A->getAsString(Args);
5080 std::string Nearest;
5081 if (Opts.findNearest(Option: ArgString, NearestString&: Nearest, VisibilityMask) > 1)
5082 Diags.Report(DiagID: diag::err_drv_unknown_argument) << ArgString;
5083 else
5084 Diags.Report(DiagID: diag::err_drv_unknown_argument_with_suggestion)
5085 << ArgString << Nearest;
5086 }
5087
5088 ParseFileSystemArgs(Opts&: Res.getFileSystemOpts(), Args, Diags);
5089 ParseMigratorArgs(Opts&: Res.getMigratorOpts(), Args, Diags);
5090 ParseAnalyzerArgs(Opts&: Res.getAnalyzerOpts(), Args, Diags);
5091 ParseSSAFArgs(Opts&: Res.getSSAFOpts(), Args, Diags);
5092 ParseDiagnosticArgs(Opts&: Res.getDiagnosticOpts(), Args, Diags: &Diags);
5093 ParseFrontendArgs(Opts&: Res.getFrontendOpts(), Args, Diags, IsHeaderFile&: LangOpts.IsHeaderFile);
5094 // FIXME: We shouldn't have to pass the DashX option around here
5095 InputKind DashX = Res.getFrontendOpts().DashX;
5096 ParseTargetArgs(Opts&: Res.getTargetOpts(), Args, Diags);
5097 llvm::Triple T(Res.getTargetOpts().Triple);
5098 ParseHeaderSearchArgs(Opts&: Res.getHeaderSearchOpts(), Args, Diags);
5099 if (Res.getFrontendOpts().GenReducedBMI ||
5100 Res.getFrontendOpts().ProgramAction ==
5101 frontend::GenerateReducedModuleInterface ||
5102 Res.getFrontendOpts().ProgramAction ==
5103 frontend::GenerateModuleInterface) {
5104 Res.getHeaderSearchOpts().ModulesSkipDiagnosticOptions = true;
5105 Res.getHeaderSearchOpts().ModulesSkipHeaderSearchPaths = true;
5106 }
5107 ParseAPINotesArgs(Opts&: Res.getAPINotesOpts(), Args, diags&: Diags);
5108
5109 ParsePointerAuthArgs(Opts&: LangOpts, Args, Diags);
5110
5111 ParseLangArgs(Opts&: LangOpts, Args, IK: DashX, T, Includes&: Res.getPreprocessorOpts().Includes,
5112 Diags);
5113 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
5114 LangOpts.ObjCExceptions = 1;
5115
5116 for (auto Warning : Res.getDiagnosticOpts().Warnings) {
5117 if (Warning == "misexpect" &&
5118 !Diags.isIgnored(DiagID: diag::warn_profile_data_misexpect, Loc: SourceLocation())) {
5119 Res.getCodeGenOpts().MisExpect = true;
5120 }
5121 }
5122
5123 if (LangOpts.CUDA) {
5124 // During CUDA device-side compilation, the aux triple is the
5125 // triple used for host compilation.
5126 if (LangOpts.CUDAIsDevice)
5127 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
5128 }
5129
5130 if (LangOpts.OpenACC && !Res.getFrontendOpts().UseClangIRPipeline &&
5131 isCodeGenAction(Action: Res.getFrontendOpts().ProgramAction))
5132 Diags.Report(DiagID: diag::warn_drv_openacc_without_cir);
5133
5134 // Set the triple of the host for OpenMP device compile.
5135 if (LangOpts.OpenMPIsTargetDevice)
5136 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
5137
5138 // Set the default and host triples for SYCL device compilation.
5139 if (LangOpts.SYCLIsDevice) {
5140 if (!Args.hasArg(Ids: options::OPT_triple))
5141 Res.getTargetOpts().Triple = "spirv64-unknown-unknown";
5142 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
5143 }
5144
5145 ParseCodeGenArgs(Opts&: Res.getCodeGenOpts(), Args, IK: DashX, Diags, T,
5146 OutputFile: Res.getFrontendOpts().OutputFile, LangOptsRef: LangOpts);
5147
5148 // FIXME: Override value name discarding when asan or msan is used because the
5149 // backend passes depend on the name of the alloca in order to print out
5150 // names.
5151 Res.getCodeGenOpts().DiscardValueNames &=
5152 !LangOpts.Sanitize.has(K: SanitizerKind::Address) &&
5153 !LangOpts.Sanitize.has(K: SanitizerKind::KernelAddress) &&
5154 !LangOpts.Sanitize.has(K: SanitizerKind::Memory) &&
5155 !LangOpts.Sanitize.has(K: SanitizerKind::KernelMemory);
5156
5157 ParsePreprocessorArgs(Opts&: Res.getPreprocessorOpts(), Args, Diags,
5158 Action: Res.getFrontendOpts().ProgramAction,
5159 FrontendOpts: Res.getFrontendOpts());
5160 ParsePreprocessorOutputArgs(Opts&: Res.getPreprocessorOutputOpts(), Args, Diags,
5161 Action: Res.getFrontendOpts().ProgramAction);
5162
5163 ParseDependencyOutputArgs(Opts&: Res.getDependencyOutputOpts(), Args, Diags,
5164 Action: Res.getFrontendOpts().ProgramAction,
5165 ShowLineMarkers: Res.getPreprocessorOutputOpts().ShowLineMarkers);
5166 if (!Res.getDependencyOutputOpts().OutputFile.empty() &&
5167 Res.getDependencyOutputOpts().Targets.empty())
5168 Diags.Report(DiagID: diag::err_fe_dependency_file_requires_MT);
5169
5170 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses.
5171 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses &&
5172 !Res.getLangOpts().Sanitize.empty()) {
5173 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false;
5174 Diags.Report(DiagID: diag::warn_drv_fine_grained_bitfield_accesses_ignored);
5175 }
5176
5177 // Store the command-line for using in the CodeView backend.
5178 if (Res.getCodeGenOpts().CodeViewCommandLine) {
5179 Res.getCodeGenOpts().Argv0 = Argv0;
5180 append_range(C&: Res.getCodeGenOpts().CommandLineArgs, R&: CommandLineArgs);
5181 }
5182
5183 if (!Res.getCodeGenOpts().ProfileInstrumentUsePath.empty() &&
5184 Res.getCodeGenOpts().getProfileUse() ==
5185 llvm::driver::ProfileInstrKind::ProfileNone)
5186 Diags.Report(DiagID: diag::err_drv_profile_instrument_use_path_with_no_kind);
5187
5188 FixupInvocation(Invocation&: Res, Diags, Args, IK: DashX);
5189
5190 return Diags.getNumErrors() == NumErrorsBefore;
5191}
5192
5193bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Invocation,
5194 ArrayRef<const char *> CommandLineArgs,
5195 DiagnosticsEngine &Diags,
5196 const char *Argv0) {
5197 CompilerInvocation DummyInvocation;
5198
5199 return RoundTrip(
5200 Parse: [](CompilerInvocation &Invocation, ArrayRef<const char *> CommandLineArgs,
5201 DiagnosticsEngine &Diags, const char *Argv0) {
5202 return CreateFromArgsImpl(Res&: Invocation, CommandLineArgs, Diags, Argv0);
5203 },
5204 Generate: [](CompilerInvocation &Invocation, SmallVectorImpl<const char *> &Args,
5205 StringAllocator SA) {
5206 Args.push_back(Elt: "-cc1");
5207 Invocation.generateCC1CommandLine(Args, SA);
5208 },
5209 RealInvocation&: Invocation, DummyInvocation, CommandLineArgs, Diags, Argv0);
5210}
5211
5212std::string CompilerInvocation::computeContextHash() const {
5213 // FIXME: Consider using SHA1 instead of MD5.
5214 llvm::HashBuilder<llvm::MD5, llvm::endianness::native> HBuilder;
5215
5216 // Note: For QoI reasons, the things we use as a hash here should all be
5217 // dumped via the -module-info flag.
5218
5219 // Start the signature with the compiler version.
5220 HBuilder.add(Value: getClangFullRepositoryVersion());
5221
5222 // Also include the serialization version, in case LLVM_APPEND_VC_REV is off
5223 // and getClangFullRepositoryVersion() doesn't include git revision.
5224 HBuilder.add(Args: serialization::VERSION_MAJOR, Args: serialization::VERSION_MINOR);
5225
5226 // Extend the signature with the language options
5227 const unsigned LanguageOptionValues[] = {
5228#define HASH_LANGOPT_Benign(Value)
5229#define HASH_LANGOPT_Compatible(Value) Value,
5230#define HASH_LANGOPT_NotCompatible(Value) Value,
5231#define LANGOPT(Name, Bits, Default, Compatibility, Description) \
5232 HASH_LANGOPT_##Compatibility(LangOpts->Name)
5233#define ENUM_LANGOPT(Name, Type, Bits, Default, Compatibility, Description) \
5234 HASH_LANGOPT_##Compatibility(static_cast<unsigned>(LangOpts->get##Name()))
5235#include "clang/Basic/LangOptions.def"
5236 };
5237#undef HASH_LANGOPT_Benign
5238#undef HASH_LANGOPT_Compatible
5239#undef HASH_LANGOPT_NotCompatible
5240 // addRangeElements preserves the HBuilder.add sequence and excludes the
5241 // LanguageOptionValues element count.
5242 HBuilder.addRangeElements(Range: LanguageOptionValues);
5243
5244 HBuilder.addRange(Range: getLangOpts().ModuleFeatures);
5245
5246 HBuilder.add(Value: getLangOpts().ObjCRuntime);
5247 HBuilder.addRange(Range: getLangOpts().CommentOpts.BlockCommandNames);
5248
5249 // Extend the signature with the target options.
5250 HBuilder.add(Args: getTargetOpts().Triple, Args: getTargetOpts().CPU,
5251 Args: getTargetOpts().TuneCPU, Args: getTargetOpts().ABI);
5252 HBuilder.addRange(Range: getTargetOpts().FeaturesAsWritten);
5253
5254 // Extend the signature with preprocessor options.
5255 const PreprocessorOptions &ppOpts = getPreprocessorOpts();
5256 HBuilder.add(Args: ppOpts.UsePredefines, Args: ppOpts.DetailedRecord);
5257
5258 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts();
5259 for (const auto &Macro : getPreprocessorOpts().Macros) {
5260 // If we're supposed to ignore this macro for the purposes of modules,
5261 // don't put it into the hash.
5262 if (!hsOpts.ModulesIgnoreMacros.empty()) {
5263 // Check whether we're ignoring this macro.
5264 StringRef MacroDef = Macro.first;
5265 if (hsOpts.ModulesIgnoreMacros.count(
5266 key: llvm::CachedHashString(MacroDef.split(Separator: '=').first)))
5267 continue;
5268 }
5269
5270 HBuilder.add(Value: Macro);
5271 }
5272
5273 // Extend the signature with the sysroot and other header search options.
5274 HBuilder.add(Args: hsOpts.Sysroot, Args: hsOpts.ModuleFormat, Args: hsOpts.UseDebugInfo,
5275 Args: hsOpts.UseBuiltinIncludes, Args: hsOpts.UseStandardSystemIncludes,
5276 Args: hsOpts.UseStandardCXXIncludes, Args: hsOpts.UseLibcxx,
5277 Args: hsOpts.ModulesValidateDiagnosticOptions);
5278 HBuilder.add(Value: hsOpts.ResourceDir);
5279
5280 if (hsOpts.ModulesStrictContextHash) {
5281 HBuilder.addRange(Range: hsOpts.SystemHeaderPrefixes);
5282 HBuilder.addRange(Range: hsOpts.UserEntries);
5283 HBuilder.addRange(Range: hsOpts.VFSOverlayFiles);
5284
5285 const DiagnosticOptions &diagOpts = getDiagnosticOpts();
5286#define DIAGOPT(Name, Bits, Default) HBuilder.add(diagOpts.Name);
5287#define ENUM_DIAGOPT(Name, Type, Bits, Default) \
5288 HBuilder.add(diagOpts.get##Name());
5289#include "clang/Basic/DiagnosticOptions.def"
5290#undef DIAGOPT
5291#undef ENUM_DIAGOPT
5292 }
5293
5294 // Extend the signature with the user build path.
5295 HBuilder.add(Value: hsOpts.ModuleUserBuildPath);
5296
5297 // Extend the signature with the module file extensions.
5298 for (const auto &ext : getFrontendOpts().ModuleFileExtensions)
5299 ext->hashExtension(HBuilder);
5300
5301 // Extend the signature with the Swift version for API notes.
5302 const APINotesOptions &APINotesOpts = getAPINotesOpts();
5303 if (!APINotesOpts.SwiftVersion.empty()) {
5304 HBuilder.add(Value: APINotesOpts.SwiftVersion.getMajor());
5305 if (auto Minor = APINotesOpts.SwiftVersion.getMinor())
5306 HBuilder.add(Value: *Minor);
5307 if (auto Subminor = APINotesOpts.SwiftVersion.getSubminor())
5308 HBuilder.add(Value: *Subminor);
5309 if (auto Build = APINotesOpts.SwiftVersion.getBuild())
5310 HBuilder.add(Value: *Build);
5311 }
5312
5313 // Extend the signature with affecting codegen options.
5314 {
5315 using CK = CodeGenOptions::CompatibilityKind;
5316#define CODEGENOPT(Name, Bits, Default, Compatibility) \
5317 if constexpr (CK::Compatibility != CK::Benign) \
5318 HBuilder.add(CodeGenOpts->Name);
5319#define ENUM_CODEGENOPT(Name, Type, Bits, Default, Compatibility) \
5320 if constexpr (CK::Compatibility != CK::Benign) \
5321 HBuilder.add(static_cast<unsigned>(CodeGenOpts->get##Name()));
5322#define DEBUGOPT(Name, Bits, Default, Compatibility)
5323#define VALUE_DEBUGOPT(Name, Bits, Default, Compatibility)
5324#define ENUM_DEBUGOPT(Name, Type, Bits, Default, Compatibility)
5325#include "clang/Basic/CodeGenOptions.def"
5326 }
5327
5328 // When compiling with -gmodules, also hash -fdebug-prefix-map as it
5329 // affects the debug info in the PCM.
5330 if (getCodeGenOpts().DebugTypeExtRefs)
5331 HBuilder.addRange(Range: getCodeGenOpts().DebugPrefixMap);
5332
5333 // Extend the signature with the affecting debug options.
5334 if (getHeaderSearchOpts().ModuleFormat == "obj") {
5335 // FIXME: Replace with C++20 `using enum CodeGenOptions::CompatibilityKind`.
5336 using CK = CodeGenOptions::CompatibilityKind;
5337#define DEBUGOPT(Name, Bits, Default, Compatibility) \
5338 if constexpr (CK::Compatibility != CK::Benign) \
5339 HBuilder.add(CodeGenOpts->Name);
5340#define VALUE_DEBUGOPT(Name, Bits, Default, Compatibility) \
5341 if constexpr (CK::Compatibility != CK::Benign) \
5342 HBuilder.add(CodeGenOpts->Name);
5343#define ENUM_DEBUGOPT(Name, Type, Bits, Default, Compatibility) \
5344 if constexpr (CK::Compatibility != CK::Benign) \
5345 HBuilder.add(static_cast<unsigned>(CodeGenOpts->get##Name()));
5346#include "clang/Basic/DebugOptions.def"
5347 }
5348
5349 // Extend the signature with the enabled sanitizers, if at least one is
5350 // enabled. Sanitizers which cannot affect AST generation aren't hashed.
5351 SanitizerSet SanHash = getLangOpts().Sanitize;
5352 SanHash.clear(K: getPPTransparentSanitizers());
5353 if (!SanHash.empty())
5354 HBuilder.add(Value: SanHash.Mask);
5355
5356 llvm::MD5::MD5Result Result;
5357 HBuilder.getHasher().final(Result);
5358 uint64_t Hash = Result.high() ^ Result.low();
5359 return toString(I: llvm::APInt(64, Hash), Radix: 36, /*Signed=*/false);
5360}
5361
5362void CowCompilerInvocation::visitMutPaths(
5363 llvm::function_ref<VisitMutResult(StringRef, std::string &)> Cb) {
5364 std::string NewValue;
5365
5366#define RETURN_IF(OPTS, PATH) \
5367 do { \
5368 VisitMutResult Res = Cb(PATH, NewValue); \
5369 if (Res.Replace) { \
5370 (void)ensureOwned(OPTS); \
5371 PATH.clear(); \
5372 std::swap(PATH, NewValue); \
5373 } \
5374 if (Res.Terminate) \
5375 return; \
5376 } while (0)
5377
5378#define RETURN_IF_MANY(OPTS, PATHS) \
5379 do { \
5380 for (unsigned I = 0, E = PATHS.size(); I != E; ++I) \
5381 RETURN_IF(OPTS, PATHS[I]); \
5382 } while (0)
5383
5384 // Header search paths.
5385 RETURN_IF(HSOpts, HSOpts->Sysroot);
5386 for (auto &Entry : HSOpts->UserEntries)
5387 if (Entry.IgnoreSysRoot)
5388 RETURN_IF(HSOpts, Entry.Path);
5389 RETURN_IF(HSOpts, HSOpts->ResourceDir);
5390 RETURN_IF(HSOpts, HSOpts->ModuleCachePath);
5391 RETURN_IF(HSOpts, HSOpts->ModuleUserBuildPath);
5392 for (auto &[Name, File] : HSOpts->PrebuiltModuleFiles)
5393 RETURN_IF(HSOpts, File);
5394 RETURN_IF_MANY(HSOpts, HSOpts->PrebuiltModulePaths);
5395 RETURN_IF_MANY(HSOpts, HSOpts->VFSOverlayFiles);
5396
5397 // Preprocessor options.
5398 RETURN_IF_MANY(PPOpts, PPOpts->MacroIncludes);
5399 RETURN_IF_MANY(PPOpts, PPOpts->Includes);
5400 RETURN_IF(PPOpts, PPOpts->ImplicitPCHInclude);
5401
5402 // Frontend options.
5403 for (auto &Input : FrontendOpts->Inputs) {
5404 if (Input.isBuffer())
5405 continue;
5406
5407 RETURN_IF(FrontendOpts, Input.File);
5408 }
5409 // TODO: Also report output files such as FrontendOpts->OutputFile;
5410 RETURN_IF(FrontendOpts, FrontendOpts->CodeCompletionAt.FileName);
5411 RETURN_IF_MANY(FrontendOpts, FrontendOpts->ModuleMapFiles);
5412 RETURN_IF_MANY(FrontendOpts, FrontendOpts->ModuleFiles);
5413 RETURN_IF_MANY(FrontendOpts, FrontendOpts->ModulesEmbedFiles);
5414 RETURN_IF_MANY(FrontendOpts, FrontendOpts->ASTMergeFiles);
5415 RETURN_IF(FrontendOpts, FrontendOpts->OverrideRecordLayoutsFile);
5416 RETURN_IF(FrontendOpts, FrontendOpts->StatsFile);
5417
5418 // Filesystem options.
5419 RETURN_IF(FSOpts, FSOpts->WorkingDir);
5420
5421 // Codegen options.
5422 RETURN_IF(CodeGenOpts, CodeGenOpts->DebugCompilationDir);
5423 RETURN_IF(CodeGenOpts, CodeGenOpts->CoverageCompilationDir);
5424
5425 // Sanitizer options.
5426 RETURN_IF_MANY(LangOpts, LangOpts->NoSanitizeFiles);
5427
5428 // Coverage mappings.
5429 RETURN_IF(CodeGenOpts, CodeGenOpts->ProfileInstrumentUsePath);
5430 RETURN_IF(CodeGenOpts, CodeGenOpts->SampleProfileFile);
5431 RETURN_IF(CodeGenOpts, CodeGenOpts->ProfileRemappingFile);
5432
5433 // Dependency output options.
5434 for (auto &ExtraDep : DependencyOutputOpts->ExtraDeps)
5435 RETURN_IF(DependencyOutputOpts, ExtraDep.first);
5436}
5437
5438void CowCompilerInvocation::visitPaths(
5439 llvm::function_ref<VisitConstResult(StringRef)> Cb) const {
5440 // The const_cast here is OK, because our callback never tries to modify.
5441 return const_cast<CowCompilerInvocation *>(this)->visitMutPaths(
5442 Cb: [&Cb](StringRef Path, std::string &) { return Cb(Path); });
5443}
5444
5445void CompilerInvocationBase::generateCC1CommandLine(
5446 ArgumentConsumer Consumer) const {
5447 llvm::Triple T(getTargetOpts().Triple);
5448
5449 GenerateFileSystemArgs(Opts: getFileSystemOpts(), Consumer);
5450 GenerateMigratorArgs(Opts: getMigratorOpts(), Consumer);
5451 GenerateAnalyzerArgs(Opts: getAnalyzerOpts(), Consumer);
5452 GenerateSSAFArgs(Opts: getSSAFOpts(), Consumer);
5453 GenerateDiagnosticArgs(Opts: getDiagnosticOpts(), Consumer,
5454 /*DefaultDiagColor=*/false);
5455 GenerateFrontendArgs(Opts: getFrontendOpts(), Consumer, IsHeader: getLangOpts().IsHeaderFile);
5456 GenerateTargetArgs(Opts: getTargetOpts(), Consumer);
5457 GenerateHeaderSearchArgs(Opts: getHeaderSearchOpts(), Consumer);
5458 GenerateAPINotesArgs(Opts: getAPINotesOpts(), Consumer);
5459 GeneratePointerAuthArgs(Opts: getLangOpts(), Consumer);
5460 GenerateLangArgs(Opts: getLangOpts(), Consumer, T, IK: getFrontendOpts().DashX);
5461 GenerateCodeGenArgs(Opts: getCodeGenOpts(), Consumer, T,
5462 OutputFile: getFrontendOpts().OutputFile, LangOpts: &getLangOpts());
5463 GeneratePreprocessorArgs(Opts: getPreprocessorOpts(), Consumer, LangOpts: getLangOpts(),
5464 FrontendOpts: getFrontendOpts(), CodeGenOpts: getCodeGenOpts());
5465 GeneratePreprocessorOutputArgs(Opts: getPreprocessorOutputOpts(), Consumer,
5466 Action: getFrontendOpts().ProgramAction);
5467 GenerateDependencyOutputArgs(Opts: getDependencyOutputOpts(), Consumer);
5468}
5469
5470std::vector<std::string> CompilerInvocationBase::getCC1CommandLine() const {
5471 std::vector<std::string> Args{"-cc1"};
5472 generateCC1CommandLine(
5473 Consumer: [&Args](const Twine &Arg) { Args.push_back(x: Arg.str()); });
5474 return Args;
5475}
5476
5477void CompilerInvocation::resetNonModularOptions() {
5478 getLangOpts().resetNonModularOptions();
5479 getPreprocessorOpts().resetNonModularOptions();
5480 getCodeGenOpts().resetNonModularOptions(ModuleFormat: getHeaderSearchOpts().ModuleFormat);
5481}
5482
5483void CompilerInvocation::clearImplicitModuleBuildOptions() {
5484 getLangOpts().ImplicitModules = false;
5485 getHeaderSearchOpts().ImplicitModuleMaps = false;
5486 getHeaderSearchOpts().ModuleCachePath.clear();
5487 getHeaderSearchOpts().ModulesValidateOncePerBuildSession = false;
5488 getHeaderSearchOpts().BuildSessionTimestamp = 0;
5489 // The specific values we canonicalize to for pruning don't affect behaviour,
5490 /// so use the default values so they may be dropped from the command-line.
5491 getHeaderSearchOpts().ModuleCachePruneInterval = 7 * 24 * 60 * 60;
5492 getHeaderSearchOpts().ModuleCachePruneAfter = 31 * 24 * 60 * 60;
5493}
5494
5495IntrusiveRefCntPtr<llvm::vfs::FileSystem>
5496clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI,
5497 DiagnosticsEngine &Diags) {
5498 return createVFSFromCompilerInvocation(CI, Diags,
5499 BaseFS: llvm::vfs::getRealFileSystem());
5500}
5501
5502IntrusiveRefCntPtr<llvm::vfs::FileSystem>
5503clang::createVFSFromCompilerInvocation(
5504 const CompilerInvocation &CI, DiagnosticsEngine &Diags,
5505 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) {
5506 return createVFSFromOverlayFiles(VFSOverlayFiles: CI.getHeaderSearchOpts().VFSOverlayFiles,
5507 Diags, BaseFS: std::move(BaseFS));
5508}
5509
5510IntrusiveRefCntPtr<llvm::vfs::FileSystem> clang::createVFSFromOverlayFiles(
5511 ArrayRef<std::string> VFSOverlayFiles, DiagnosticsEngine &Diags,
5512 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) {
5513 if (VFSOverlayFiles.empty())
5514 return BaseFS;
5515
5516 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS;
5517 // earlier vfs files are on the bottom
5518 for (const auto &File : VFSOverlayFiles) {
5519 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer =
5520 Result->getBufferForFile(Name: File);
5521 if (!Buffer) {
5522 Diags.Report(DiagID: diag::err_missing_vfs_overlay_file) << File;
5523 continue;
5524 }
5525
5526 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML(
5527 Buffer: std::move(Buffer.get()), /*DiagHandler*/ nullptr, YAMLFilePath: File,
5528 /*DiagContext*/ nullptr, ExternalFS: Result);
5529 if (!FS) {
5530 Diags.Report(DiagID: diag::err_invalid_vfs_overlay) << File;
5531 continue;
5532 }
5533
5534 Result = FS;
5535 }
5536 return Result;
5537}
5538