1 //===- CompilerInvocation.cpp ---------------------------------------------===//
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
7 //===----------------------------------------------------------------------===//
9 #include "clang/Frontend/CompilerInvocation.h"
10 #include "TestModuleFileExtension.h"
11 #include "clang/Basic/Builtins.h"
12 #include "clang/Basic/CharInfo.h"
13 #include "clang/Basic/CodeGenOptions.h"
14 #include "clang/Basic/CommentOptions.h"
15 #include "clang/Basic/DebugInfoOptions.h"
16 #include "clang/Basic/Diagnostic.h"
17 #include "clang/Basic/DiagnosticOptions.h"
18 #include "clang/Basic/FileSystemOptions.h"
19 #include "clang/Basic/LLVM.h"
20 #include "clang/Basic/LangOptions.h"
21 #include "clang/Basic/ObjCRuntime.h"
22 #include "clang/Basic/Sanitizers.h"
23 #include "clang/Basic/SourceLocation.h"
24 #include "clang/Basic/TargetOptions.h"
25 #include "clang/Basic/Version.h"
26 #include "clang/Basic/Visibility.h"
27 #include "clang/Basic/XRayInstr.h"
28 #include "clang/Config/config.h"
29 #include "clang/Driver/Driver.h"
30 #include "clang/Driver/DriverDiagnostic.h"
31 #include "clang/Driver/Options.h"
32 #include "clang/Frontend/CommandLineSourceLoc.h"
33 #include "clang/Frontend/DependencyOutputOptions.h"
34 #include "clang/Frontend/FrontendDiagnostic.h"
35 #include "clang/Frontend/FrontendOptions.h"
36 #include "clang/Frontend/FrontendPluginRegistry.h"
37 #include "clang/Frontend/LangStandard.h"
38 #include "clang/Frontend/MigratorOptions.h"
39 #include "clang/Frontend/PreprocessorOutputOptions.h"
40 #include "clang/Frontend/Utils.h"
41 #include "clang/Lex/HeaderSearchOptions.h"
42 #include "clang/Lex/PreprocessorOptions.h"
43 #include "clang/Sema/CodeCompleteOptions.h"
44 #include "clang/Serialization/ModuleFileExtension.h"
45 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h"
46 #include "llvm/ADT/APInt.h"
47 #include "llvm/ADT/ArrayRef.h"
48 #include "llvm/ADT/CachedHashString.h"
49 #include "llvm/ADT/Hashing.h"
50 #include "llvm/ADT/None.h"
51 #include "llvm/ADT/Optional.h"
52 #include "llvm/ADT/SmallString.h"
53 #include "llvm/ADT/SmallVector.h"
54 #include "llvm/ADT/StringRef.h"
55 #include "llvm/ADT/StringSwitch.h"
56 #include "llvm/ADT/Triple.h"
57 #include "llvm/ADT/Twine.h"
58 #include "llvm/IR/DebugInfoMetadata.h"
59 #include "llvm/Linker/Linker.h"
60 #include "llvm/MC/MCTargetOptions.h"
61 #include "llvm/Option/Arg.h"
62 #include "llvm/Option/ArgList.h"
63 #include "llvm/Option/OptSpecifier.h"
64 #include "llvm/Option/OptTable.h"
65 #include "llvm/Option/Option.h"
66 #include "llvm/ProfileData/InstrProfReader.h"
67 #include "llvm/Support/CodeGen.h"
68 #include "llvm/Support/Compiler.h"
69 #include "llvm/Support/Error.h"
70 #include "llvm/Support/ErrorHandling.h"
71 #include "llvm/Support/ErrorOr.h"
72 #include "llvm/Support/FileSystem.h"
73 #include "llvm/Support/Host.h"
74 #include "llvm/Support/MathExtras.h"
75 #include "llvm/Support/MemoryBuffer.h"
76 #include "llvm/Support/Path.h"
77 #include "llvm/Support/Process.h"
78 #include "llvm/Support/Regex.h"
79 #include "llvm/Support/VersionTuple.h"
80 #include "llvm/Support/VirtualFileSystem.h"
81 #include "llvm/Support/raw_ostream.h"
82 #include "llvm/Target/TargetOptions.h"
94 using namespace clang;
95 using namespace driver;
96 using namespace options;
97 using namespace llvm::opt;
99 //===----------------------------------------------------------------------===//
101 //===----------------------------------------------------------------------===//
103 CompilerInvocationBase::CompilerInvocationBase()
104 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()),
105 DiagnosticOpts(new DiagnosticOptions()),
106 HeaderSearchOpts(new HeaderSearchOptions()),
107 PreprocessorOpts(new PreprocessorOptions()) {}
109 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X)
110 : LangOpts(new LangOptions(*X.getLangOpts())),
111 TargetOpts(new TargetOptions(X.getTargetOpts())),
112 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())),
113 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())),
114 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {}
116 CompilerInvocationBase::~CompilerInvocationBase() = default;
118 //===----------------------------------------------------------------------===//
119 // Deserialization (from args)
120 //===----------------------------------------------------------------------===//
122 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK,
123 DiagnosticsEngine &Diags) {
124 unsigned DefaultOpt = llvm::CodeGenOpt::None;
125 if (IK.getLanguage() == InputKind::OpenCL && !Args.hasArg(OPT_cl_opt_disable))
126 DefaultOpt = llvm::CodeGenOpt::Default;
128 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
129 if (A->getOption().matches(options::OPT_O0))
130 return llvm::CodeGenOpt::None;
132 if (A->getOption().matches(options::OPT_Ofast))
133 return llvm::CodeGenOpt::Aggressive;
135 assert(A->getOption().matches(options::OPT_O));
137 StringRef S(A->getValue());
138 if (S == "s" || S == "z" || S.empty())
139 return llvm::CodeGenOpt::Default;
142 return llvm::CodeGenOpt::Less;
144 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags);
150 static unsigned getOptimizationLevelSize(ArgList &Args) {
151 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
152 if (A->getOption().matches(options::OPT_O)) {
153 switch (A->getValue()[0]) {
166 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group,
167 OptSpecifier GroupWithValue,
168 std::vector<std::string> &Diagnostics) {
169 for (auto *A : Args.filtered(Group)) {
170 if (A->getOption().getKind() == Option::FlagClass) {
171 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add
172 // its name (minus the "W" or "R" at the beginning) to the warning list.
173 Diagnostics.push_back(A->getOption().getName().drop_front(1));
174 } else if (A->getOption().matches(GroupWithValue)) {
175 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group.
176 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-"));
178 // Otherwise, add its value (for OPT_W_Joined and similar).
179 for (const auto *Arg : A->getValues())
180 Diagnostics.emplace_back(Arg);
185 // Parse the Static Analyzer configuration. If \p Diags is set to nullptr,
186 // it won't verify the input.
187 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts,
188 DiagnosticsEngine *Diags);
190 static void getAllNoBuiltinFuncValues(ArgList &Args,
191 std::vector<std::string> &Funcs) {
192 SmallVector<const char *, 8> Values;
193 for (const auto &Arg : Args) {
194 const Option &O = Arg->getOption();
195 if (O.matches(options::OPT_fno_builtin_)) {
196 const char *FuncName = Arg->getValue();
197 if (Builtin::Context::isBuiltinFunc(FuncName))
198 Values.push_back(FuncName);
201 Funcs.insert(Funcs.end(), Values.begin(), Values.end());
204 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
205 DiagnosticsEngine &Diags) {
207 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) {
208 StringRef Name = A->getValue();
209 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name)
210 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
211 .Case(CMDFLAG, NAME##Model)
212 #include "clang/StaticAnalyzer/Core/Analyses.def"
214 if (Value == NumStores) {
215 Diags.Report(diag::err_drv_invalid_value)
216 << A->getAsString(Args) << Name;
219 Opts.AnalysisStoreOpt = Value;
223 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) {
224 StringRef Name = A->getValue();
225 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
226 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
227 .Case(CMDFLAG, NAME##Model)
228 #include "clang/StaticAnalyzer/Core/Analyses.def"
229 .Default(NumConstraints);
230 if (Value == NumConstraints) {
231 Diags.Report(diag::err_drv_invalid_value)
232 << A->getAsString(Args) << Name;
235 Opts.AnalysisConstraintsOpt = Value;
239 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) {
240 StringRef Name = A->getValue();
241 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
242 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \
243 .Case(CMDFLAG, PD_##NAME)
244 #include "clang/StaticAnalyzer/Core/Analyses.def"
245 .Default(NUM_ANALYSIS_DIAG_CLIENTS);
246 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) {
247 Diags.Report(diag::err_drv_invalid_value)
248 << A->getAsString(Args) << Name;
251 Opts.AnalysisDiagOpt = Value;
255 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) {
256 StringRef Name = A->getValue();
257 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name)
258 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \
260 #include "clang/StaticAnalyzer/Core/Analyses.def"
261 .Default(NumPurgeModes);
262 if (Value == NumPurgeModes) {
263 Diags.Report(diag::err_drv_invalid_value)
264 << A->getAsString(Args) << Name;
267 Opts.AnalysisPurgeOpt = Value;
271 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) {
272 StringRef Name = A->getValue();
273 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name)
274 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \
276 #include "clang/StaticAnalyzer/Core/Analyses.def"
277 .Default(NumInliningModes);
278 if (Value == NumInliningModes) {
279 Diags.Report(diag::err_drv_invalid_value)
280 << A->getAsString(Args) << Name;
283 Opts.InliningMode = Value;
287 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help);
288 Opts.ShowCheckerHelpAlpha = Args.hasArg(OPT_analyzer_checker_help_alpha);
289 Opts.ShowCheckerHelpDeveloper =
290 Args.hasArg(OPT_analyzer_checker_help_developer);
292 Opts.ShowCheckerOptionList = Args.hasArg(OPT_analyzer_checker_option_help);
293 Opts.ShowCheckerOptionAlphaList =
294 Args.hasArg(OPT_analyzer_checker_option_help_alpha);
295 Opts.ShowCheckerOptionDeveloperList =
296 Args.hasArg(OPT_analyzer_checker_option_help_developer);
298 Opts.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help);
299 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers);
300 Opts.ShouldEmitErrorsOnInvalidConfigValue =
301 /* negated */!llvm::StringSwitch<bool>(
302 Args.getLastArgValue(OPT_analyzer_config_compatibility_mode))
304 .Case("false", false)
306 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks);
308 Opts.visualizeExplodedGraphWithGraphViz =
309 Args.hasArg(OPT_analyzer_viz_egraph_graphviz);
310 Opts.DumpExplodedGraphTo = Args.getLastArgValue(OPT_analyzer_dump_egraph);
311 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted);
312 Opts.AnalyzerWerror = Args.hasArg(OPT_analyzer_werror);
313 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers);
314 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress);
315 Opts.AnalyzeNestedBlocks =
316 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks);
317 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function);
318 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG);
319 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph);
320 Opts.maxBlockVisitOnPath =
321 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags);
322 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats);
323 Opts.InlineMaxStackDepth =
324 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth,
325 Opts.InlineMaxStackDepth, Diags);
327 Opts.CheckersControlList.clear();
329 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) {
331 bool enable = (A->getOption().getID() == OPT_analyzer_checker);
332 // We can have a list of comma separated checker names, e.g:
333 // '-analyzer-checker=cocoa,unix'
334 StringRef checkerList = A->getValue();
335 SmallVector<StringRef, 4> checkers;
336 checkerList.split(checkers, ",");
337 for (auto checker : checkers)
338 Opts.CheckersControlList.emplace_back(checker, enable);
341 // Go through the analyzer configuration options.
342 for (const auto *A : Args.filtered(OPT_analyzer_config)) {
344 // We can have a list of comma separated config names, e.g:
345 // '-analyzer-config key1=val1,key2=val2'
346 StringRef configList = A->getValue();
347 SmallVector<StringRef, 4> configVals;
348 configList.split(configVals, ",");
349 for (const auto &configVal : configVals) {
351 std::tie(key, val) = configVal.split("=");
353 Diags.Report(SourceLocation(),
354 diag::err_analyzer_config_no_value) << configVal;
358 if (val.find('=') != StringRef::npos) {
359 Diags.Report(SourceLocation(),
360 diag::err_analyzer_config_multiple_values)
366 // TODO: Check checker options too, possibly in CheckerRegistry.
367 // Leave unknown non-checker configs unclaimed.
368 if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) {
369 if (Opts.ShouldEmitErrorsOnInvalidConfigValue)
370 Diags.Report(diag::err_analyzer_config_unknown) << key;
375 Opts.Config[key] = val;
379 if (Opts.ShouldEmitErrorsOnInvalidConfigValue)
380 parseAnalyzerConfigs(Opts, &Diags);
382 parseAnalyzerConfigs(Opts, nullptr);
384 llvm::raw_string_ostream os(Opts.FullCompilerInvocation);
385 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) {
388 os << Args.getArgString(i);
395 static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config,
396 StringRef OptionName, StringRef DefaultVal) {
397 return Config.insert({OptionName, DefaultVal}).first->second;
400 static void initOption(AnalyzerOptions::ConfigTable &Config,
401 DiagnosticsEngine *Diags,
402 StringRef &OptionField, StringRef Name,
403 StringRef DefaultVal) {
404 // String options may be known to invalid (e.g. if the expected string is a
405 // file name, but the file does not exist), those will have to be checked in
407 OptionField = getStringOption(Config, Name, DefaultVal);
410 static void initOption(AnalyzerOptions::ConfigTable &Config,
411 DiagnosticsEngine *Diags,
412 bool &OptionField, StringRef Name, bool DefaultVal) {
413 auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>(
414 getStringOption(Config, Name, (DefaultVal ? "true" : "false")))
416 .Case("false", false)
419 if (!PossiblyInvalidVal) {
421 Diags->Report(diag::err_analyzer_config_invalid_input)
422 << Name << "a boolean";
424 OptionField = DefaultVal;
426 OptionField = PossiblyInvalidVal.getValue();
429 static void initOption(AnalyzerOptions::ConfigTable &Config,
430 DiagnosticsEngine *Diags,
431 unsigned &OptionField, StringRef Name,
432 unsigned DefaultVal) {
434 OptionField = DefaultVal;
435 bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal))
436 .getAsInteger(0, OptionField);
437 if (Diags && HasFailed)
438 Diags->Report(diag::err_analyzer_config_invalid_input)
439 << Name << "an unsigned";
442 static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts,
443 DiagnosticsEngine *Diags) {
444 // TODO: There's no need to store the entire configtable, it'd be plenty
445 // enough tostore checker options.
447 #define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \
448 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL);
450 #define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \
451 SHALLOW_VAL, DEEP_VAL) \
452 switch (AnOpts.getUserMode()) { \
454 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \
457 initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \
461 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.def"
462 #undef ANALYZER_OPTION
463 #undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE
465 // At this point, AnalyzerOptions is configured. Let's validate some options.
470 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions)
471 Diags->Report(diag::err_analyzer_config_invalid_input)
472 << "track-conditions-debug" << "'track-conditions' to also be enabled";
474 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir))
475 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir"
478 if (!AnOpts.ModelPath.empty() &&
479 !llvm::sys::fs::is_directory(AnOpts.ModelPath))
480 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path"
484 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) {
485 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error);
486 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal);
490 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) {
491 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands);
492 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments);
495 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) {
496 if (Arg *A = Args.getLastArg(OPT_mcode_model)) {
497 StringRef Value = A->getValue();
498 if (Value == "small" || Value == "kernel" || Value == "medium" ||
499 Value == "large" || Value == "tiny")
501 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value;
506 static llvm::Reloc::Model getRelocModel(ArgList &Args,
507 DiagnosticsEngine &Diags) {
508 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) {
509 StringRef Value = A->getValue();
510 auto RM = llvm::StringSwitch<llvm::Optional<llvm::Reloc::Model>>(Value)
511 .Case("static", llvm::Reloc::Static)
512 .Case("pic", llvm::Reloc::PIC_)
513 .Case("ropi", llvm::Reloc::ROPI)
514 .Case("rwpi", llvm::Reloc::RWPI)
515 .Case("ropi-rwpi", llvm::Reloc::ROPI_RWPI)
516 .Case("dynamic-no-pic", llvm::Reloc::DynamicNoPIC)
520 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value;
522 return llvm::Reloc::PIC_;
525 /// Create a new Regex instance out of the string value in \p RpassArg.
526 /// It returns a pointer to the newly generated Regex instance.
527 static std::shared_ptr<llvm::Regex>
528 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args,
530 StringRef Val = RpassArg->getValue();
531 std::string RegexError;
532 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val);
533 if (!Pattern->isValid(RegexError)) {
534 Diags.Report(diag::err_drv_optimization_remark_pattern)
535 << RegexError << RpassArg->getAsString(Args);
541 static bool parseDiagnosticLevelMask(StringRef FlagName,
542 const std::vector<std::string> &Levels,
543 DiagnosticsEngine *Diags,
544 DiagnosticLevelMask &M) {
546 for (const auto &Level : Levels) {
547 DiagnosticLevelMask const PM =
548 llvm::StringSwitch<DiagnosticLevelMask>(Level)
549 .Case("note", DiagnosticLevelMask::Note)
550 .Case("remark", DiagnosticLevelMask::Remark)
551 .Case("warning", DiagnosticLevelMask::Warning)
552 .Case("error", DiagnosticLevelMask::Error)
553 .Default(DiagnosticLevelMask::None);
554 if (PM == DiagnosticLevelMask::None) {
557 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level;
564 static void parseSanitizerKinds(StringRef FlagName,
565 const std::vector<std::string> &Sanitizers,
566 DiagnosticsEngine &Diags, SanitizerSet &S) {
567 for (const auto &Sanitizer : Sanitizers) {
568 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false);
569 if (K == SanitizerMask())
570 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer;
576 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle,
577 ArgList &Args, DiagnosticsEngine &D,
579 llvm::SmallVector<StringRef, 2> BundleParts;
580 llvm::SplitString(Bundle, BundleParts, ",");
581 for (const auto B : BundleParts) {
582 auto Mask = parseXRayInstrValue(B);
583 if (Mask == XRayInstrKind::None)
585 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle;
588 else if (Mask == XRayInstrKind::All)
595 // Set the profile kind for fprofile-instrument.
596 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args,
597 DiagnosticsEngine &Diags) {
598 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ);
601 StringRef S = A->getValue();
602 unsigned I = llvm::StringSwitch<unsigned>(S)
603 .Case("none", CodeGenOptions::ProfileNone)
604 .Case("clang", CodeGenOptions::ProfileClangInstr)
605 .Case("llvm", CodeGenOptions::ProfileIRInstr)
606 .Case("csllvm", CodeGenOptions::ProfileCSIRInstr)
609 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args)
613 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I);
614 Opts.setProfileInstr(Instrumentor);
617 // Set the profile kind using fprofile-instrument-use-path.
618 static void setPGOUseInstrumentor(CodeGenOptions &Opts,
619 const Twine &ProfileName) {
620 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName);
621 // In error, return silently and let Clang PGOUse report the error message.
622 if (auto E = ReaderOrErr.takeError()) {
623 llvm::consumeError(std::move(E));
624 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr);
627 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader =
628 std::move(ReaderOrErr.get());
629 if (PGOReader->isIRLevelProfile()) {
630 if (PGOReader->hasCSIRLevelProfile())
631 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr);
633 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr);
635 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr);
638 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
639 DiagnosticsEngine &Diags,
640 const TargetOptions &TargetOpts,
641 const FrontendOptions &FrontendOpts) {
643 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple);
645 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags);
646 // TODO: This could be done in Driver
647 unsigned MaxOptLevel = 3;
648 if (OptimizationLevel > MaxOptLevel) {
649 // If the optimization level is not supported, fall back on the default
651 Diags.Report(diag::warn_drv_optimization_value)
652 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel;
653 OptimizationLevel = MaxOptLevel;
655 Opts.OptimizationLevel = OptimizationLevel;
657 // At O0 we want to fully disable inlining outside of cases marked with
658 // 'alwaysinline' that are required for correctness.
659 Opts.setInlining((Opts.OptimizationLevel == 0)
660 ? CodeGenOptions::OnlyAlwaysInlining
661 : CodeGenOptions::NormalInlining);
662 // Explicit inlining flags can disable some or all inlining even at
663 // optimization levels above zero.
664 if (Arg *InlineArg = Args.getLastArg(
665 options::OPT_finline_functions, options::OPT_finline_hint_functions,
666 options::OPT_fno_inline_functions, options::OPT_fno_inline)) {
667 if (Opts.OptimizationLevel > 0) {
668 const Option &InlineOpt = InlineArg->getOption();
669 if (InlineOpt.matches(options::OPT_finline_functions))
670 Opts.setInlining(CodeGenOptions::NormalInlining);
671 else if (InlineOpt.matches(options::OPT_finline_hint_functions))
672 Opts.setInlining(CodeGenOptions::OnlyHintInlining);
674 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining);
678 Opts.ExperimentalNewPassManager = Args.hasFlag(
679 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager,
680 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER);
682 Opts.DebugPassManager =
683 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager,
684 /* Default */ false);
686 if (Arg *A = Args.getLastArg(OPT_fveclib)) {
687 StringRef Name = A->getValue();
688 if (Name == "Accelerate")
689 Opts.setVecLib(CodeGenOptions::Accelerate);
690 else if (Name == "MASSV")
691 Opts.setVecLib(CodeGenOptions::MASSV);
692 else if (Name == "SVML")
693 Opts.setVecLib(CodeGenOptions::SVML);
694 else if (Name == "none")
695 Opts.setVecLib(CodeGenOptions::NoLibrary);
697 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
700 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) {
702 llvm::StringSwitch<unsigned>(A->getValue())
703 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly)
704 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly)
705 .Case("limited", codegenoptions::LimitedDebugInfo)
706 .Case("standalone", codegenoptions::FullDebugInfo)
709 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
712 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val));
714 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) {
715 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue())
716 .Case("gdb", unsigned(llvm::DebuggerKind::GDB))
717 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB))
718 .Case("sce", unsigned(llvm::DebuggerKind::SCE))
721 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
724 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val));
726 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags);
727 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info);
728 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview);
729 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash);
730 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro);
731 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables);
732 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std);
733 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file);
734 Opts.SplitDwarfOutput = Args.getLastArgValue(OPT_split_dwarf_output);
735 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining);
736 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs);
737 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import);
738 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params);
739 Opts.EmbedSource = Args.hasArg(OPT_gembed_source);
741 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ))
742 Opts.DebugPrefixMap.insert(StringRef(Arg).split('='));
745 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists))
746 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists;
748 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes);
749 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers);
751 llvm::Triple T(TargetOpts.Triple);
752 llvm::Triple::ArchType Arch = T.getArch();
753 if (Opts.OptimizationLevel > 0 &&
754 (Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64))
755 Opts.EnableDebugEntryValues = Args.hasArg(OPT_femit_debug_entry_values);
757 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone);
758 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
759 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs);
760 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables);
761 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg(
762 OPT_fuse_register_sized_bitfield_access);
763 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing);
764 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa);
765 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) &&
766 Args.hasArg(OPT_new_struct_path_tbaa);
767 Opts.FineGrainedBitfieldAccesses =
768 Args.hasFlag(OPT_ffine_grained_bitfield_accesses,
769 OPT_fno_fine_grained_bitfield_accesses, false);
770 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags);
771 Opts.RecordCommandLine = Args.getLastArgValue(OPT_record_command_line);
772 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants);
773 Opts.NoCommon = Args.hasArg(OPT_fno_common);
774 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float);
775 Opts.OptimizeSize = getOptimizationLevelSize(Args);
776 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) ||
777 Args.hasArg(OPT_ffreestanding));
778 if (Opts.SimplifyLibCalls)
779 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs);
781 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops,
782 (Opts.OptimizationLevel > 1));
783 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops);
785 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as);
786 Opts.Autolink = !Args.hasArg(OPT_fno_autolink);
787 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ);
788 Opts.DebugInfoForProfiling = Args.hasFlag(
789 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false);
790 Opts.DebugNameTable = static_cast<unsigned>(
791 Args.hasArg(OPT_ggnu_pubnames)
792 ? llvm::DICompileUnit::DebugNameTableKind::GNU
793 : Args.hasArg(OPT_gpubnames)
794 ? llvm::DICompileUnit::DebugNameTableKind::Default
795 : llvm::DICompileUnit::DebugNameTableKind::None);
796 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address);
798 setPGOInstrumentor(Opts, Args, Diags);
799 Opts.InstrProfileOutput =
800 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ);
801 Opts.ProfileInstrumentUsePath =
802 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ);
803 if (!Opts.ProfileInstrumentUsePath.empty())
804 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath);
805 Opts.ProfileRemappingFile =
806 Args.getLastArgValue(OPT_fprofile_remapping_file_EQ);
807 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) {
808 Diags.Report(diag::err_drv_argument_only_allowed_with)
809 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args)
810 << "-fexperimental-new-pass-manager";
813 Opts.CoverageMapping =
814 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false);
815 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping);
816 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose);
817 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments);
818 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
819 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions);
820 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit);
821 Opts.RegisterGlobalDtorsWithAtExit =
822 Args.hasArg(OPT_fregister_global_dtors_with_atexit);
823 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases);
824 Opts.CodeModel = TargetOpts.CodeModel;
825 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass);
827 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg));
828 Opts.DisableFree = Args.hasArg(OPT_disable_free);
829 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names);
830 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls);
831 Opts.NoEscapingBlockTailCalls =
832 Args.hasArg(OPT_fno_escaping_block_tail_calls);
833 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi);
834 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) ||
835 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
836 Args.hasArg(OPT_cl_fast_relaxed_math);
837 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision);
838 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) ||
839 Args.hasArg(OPT_cl_finite_math_only) ||
840 Args.hasArg(OPT_cl_fast_relaxed_math));
841 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) ||
842 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
843 Args.hasArg(OPT_cl_finite_math_only) ||
844 Args.hasArg(OPT_cl_fast_relaxed_math));
845 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) ||
846 Args.hasArg(OPT_cl_no_signed_zeros) ||
847 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
848 Args.hasArg(OPT_cl_fast_relaxed_math));
849 Opts.Reassociate = Args.hasArg(OPT_mreassociate);
850 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero) ||
851 (Args.hasArg(OPT_fcuda_is_device) &&
852 Args.hasArg(OPT_fcuda_flush_denormals_to_zero));
853 Opts.CorrectlyRoundedDivSqrt =
854 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt);
856 Args.hasArg(OPT_cl_uniform_work_group_size);
857 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ);
858 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math);
859 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math);
860 Opts.StrictFloatCastOverflow =
861 !Args.hasArg(OPT_fno_strict_float_cast_overflow);
863 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
864 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags);
865 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack);
866 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings);
867 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks);
868 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
869 Opts.IncrementalLinkerCompatible =
870 Args.hasArg(OPT_mincremental_linker_compatible);
871 Opts.PIECopyRelocations =
872 Args.hasArg(OPT_mpie_copy_relocations);
873 Opts.NoPLT = Args.hasArg(OPT_fno_plt);
874 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer);
875 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels);
876 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm);
877 Opts.SoftFloat = Args.hasArg(OPT_msoft_float);
878 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums);
879 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return);
880 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers);
881 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables);
882 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
883 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
884 Args.hasArg(OPT_cl_fast_relaxed_math);
885 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
886 Opts.RelocationModel = getRelocModel(Args, Diags);
887 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix");
888 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single")
889 Diags.Report(diag::err_drv_invalid_value)
890 << Args.getLastArg(OPT_mthread_model)->getAsString(Args)
892 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ);
893 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array);
895 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections,
896 OPT_fno_function_sections, false);
897 Opts.DataSections = Args.hasFlag(OPT_fdata_sections,
898 OPT_fno_data_sections, false);
899 Opts.StackSizeSection =
900 Args.hasFlag(OPT_fstack_size_section, OPT_fno_stack_size_section, false);
901 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names,
902 OPT_fno_unique_section_names, true);
904 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions);
906 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables);
908 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks);
910 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate);
912 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ);
913 Opts.PrepareForThinLTO = false;
914 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) {
915 StringRef S = A->getValue();
917 Opts.PrepareForThinLTO = true;
918 else if (S != "full")
919 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S;
921 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false);
922 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit);
923 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) {
924 if (IK.getLanguage() != InputKind::LLVM_IR)
925 Diags.Report(diag::err_drv_argument_only_allowed_with)
926 << A->getAsString(Args) << "-x ir";
927 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ);
929 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ))
930 Opts.SaveTempsFilePrefix =
931 llvm::StringSwitch<std::string>(A->getValue())
932 .Case("obj", FrontendOpts.OutputFile)
933 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str());
935 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ);
937 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile);
939 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops);
940 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp);
942 Opts.PreferVectorWidth = Args.getLastArgValue(OPT_mprefer_vector_width_EQ);
944 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name);
945 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier);
947 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard);
949 Opts.DisableGCov = Args.hasArg(OPT_test_coverage);
950 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data);
951 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes);
952 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) {
953 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file);
954 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file);
955 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum);
956 Opts.CoverageNoFunctionNamesInData =
957 Args.hasArg(OPT_coverage_no_function_names_in_data);
958 Opts.ProfileFilterFiles =
959 Args.getLastArgValue(OPT_fprofile_filter_files_EQ);
960 Opts.ProfileExcludeFiles =
961 Args.getLastArgValue(OPT_fprofile_exclude_files_EQ);
962 Opts.CoverageExitBlockBeforeBody =
963 Args.hasArg(OPT_coverage_exit_block_before_body);
964 if (Args.hasArg(OPT_coverage_version_EQ)) {
965 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ);
966 if (CoverageVersion.size() != 4) {
967 Diags.Report(diag::err_drv_invalid_value)
968 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args)
971 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4);
975 // Handle -fembed-bitcode option.
976 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) {
977 StringRef Name = A->getValue();
978 unsigned Model = llvm::StringSwitch<unsigned>(Name)
979 .Case("off", CodeGenOptions::Embed_Off)
980 .Case("all", CodeGenOptions::Embed_All)
981 .Case("bitcode", CodeGenOptions::Embed_Bitcode)
982 .Case("marker", CodeGenOptions::Embed_Marker)
985 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
988 Opts.setEmbedBitcode(
989 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model));
991 // FIXME: For backend options that are not yet recorded as function
992 // attributes in the IR, keep track of them so we can embed them in a
993 // separate data section and use them when building the bitcode.
994 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) {
995 for (const auto &A : Args) {
996 // Do not encode output and input.
997 if (A->getOption().getID() == options::OPT_o ||
998 A->getOption().getID() == options::OPT_INPUT ||
999 A->getOption().getID() == options::OPT_x ||
1000 A->getOption().getID() == options::OPT_fembed_bitcode ||
1001 (A->getOption().getGroup().isValid() &&
1002 A->getOption().getGroup().getID() == options::OPT_W_Group))
1005 A->render(Args, ASL);
1006 for (const auto &arg : ASL) {
1007 StringRef ArgStr(arg);
1008 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end());
1009 // using \00 to separate each commandline options.
1010 Opts.CmdArgs.push_back('\0');
1015 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type);
1016 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions);
1017 Opts.InstrumentFunctionsAfterInlining =
1018 Args.hasArg(OPT_finstrument_functions_after_inlining);
1019 Opts.InstrumentFunctionEntryBare =
1020 Args.hasArg(OPT_finstrument_function_entry_bare);
1022 Opts.XRayInstrumentFunctions =
1023 Args.hasArg(OPT_fxray_instrument);
1024 Opts.XRayAlwaysEmitCustomEvents =
1025 Args.hasArg(OPT_fxray_always_emit_customevents);
1026 Opts.XRayAlwaysEmitTypedEvents =
1027 Args.hasArg(OPT_fxray_always_emit_typedevents);
1028 Opts.XRayInstructionThreshold =
1029 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags);
1031 auto XRayInstrBundles =
1032 Args.getAllArgValues(OPT_fxray_instrumentation_bundle);
1033 if (XRayInstrBundles.empty())
1034 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All;
1036 for (const auto &A : XRayInstrBundles)
1037 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args,
1038 Diags, Opts.XRayInstrumentationBundle);
1040 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg);
1041 Opts.CallFEntry = Args.hasArg(OPT_mfentry);
1042 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info);
1044 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) {
1045 StringRef Name = A->getValue();
1046 if (Name == "full") {
1047 Opts.CFProtectionReturn = 1;
1048 Opts.CFProtectionBranch = 1;
1049 } else if (Name == "return")
1050 Opts.CFProtectionReturn = 1;
1051 else if (Name == "branch")
1052 Opts.CFProtectionBranch = 1;
1053 else if (Name != "none") {
1054 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
1059 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections,
1060 OPT_compress_debug_sections_EQ)) {
1061 if (A->getOption().getID() == OPT_compress_debug_sections) {
1062 // TODO: be more clever about the compression type auto-detection
1063 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU);
1065 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue())
1066 .Case("none", llvm::DebugCompressionType::None)
1067 .Case("zlib", llvm::DebugCompressionType::Z)
1068 .Case("zlib-gnu", llvm::DebugCompressionType::GNU)
1069 .Default(llvm::DebugCompressionType::None);
1070 Opts.setCompressDebugSections(DCT);
1074 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations);
1075 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir);
1077 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) {
1078 CodeGenOptions::BitcodeFileToLink F;
1079 F.Filename = A->getValue();
1080 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) {
1081 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded;
1082 // When linking CUDA bitcode, propagate function attributes so that
1083 // e.g. libdevice gets fast-math attrs if we're building with fast-math.
1084 F.PropagateAttrs = true;
1085 F.Internalize = true;
1087 Opts.LinkBitcodeFiles.push_back(F);
1089 Opts.SanitizeCoverageType =
1090 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags);
1091 Opts.SanitizeCoverageIndirectCalls =
1092 Args.hasArg(OPT_fsanitize_coverage_indirect_calls);
1093 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb);
1094 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp);
1095 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div);
1096 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep);
1097 Opts.SanitizeCoverage8bitCounters =
1098 Args.hasArg(OPT_fsanitize_coverage_8bit_counters);
1099 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc);
1100 Opts.SanitizeCoverageTracePCGuard =
1101 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard);
1102 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune);
1103 Opts.SanitizeCoverageInline8bitCounters =
1104 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters);
1105 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table);
1106 Opts.SanitizeCoverageStackDepth =
1107 Args.hasArg(OPT_fsanitize_coverage_stack_depth);
1108 Opts.SanitizeMemoryTrackOrigins =
1109 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags);
1110 Opts.SanitizeMemoryUseAfterDtor =
1111 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor,
1112 OPT_fno_sanitize_memory_use_after_dtor,
1114 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime);
1115 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso);
1116 Opts.SanitizeCfiICallGeneralizePointers =
1117 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers);
1118 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats);
1119 if (Arg *A = Args.getLastArg(
1120 OPT_fsanitize_address_poison_custom_array_cookie,
1121 OPT_fno_sanitize_address_poison_custom_array_cookie)) {
1122 Opts.SanitizeAddressPoisonCustomArrayCookie =
1123 A->getOption().getID() ==
1124 OPT_fsanitize_address_poison_custom_array_cookie;
1126 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope,
1127 OPT_fno_sanitize_address_use_after_scope)) {
1128 Opts.SanitizeAddressUseAfterScope =
1129 A->getOption().getID() == OPT_fsanitize_address_use_after_scope;
1131 Opts.SanitizeAddressGlobalsDeadStripping =
1132 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping);
1133 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator,
1134 OPT_fno_sanitize_address_use_odr_indicator)) {
1135 Opts.SanitizeAddressUseOdrIndicator =
1136 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator;
1138 Opts.SSPBufferSize =
1139 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags);
1140 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign);
1141 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) {
1142 StringRef Val = A->getValue();
1143 unsigned StackAlignment = Opts.StackAlignment;
1144 Val.getAsInteger(10, StackAlignment);
1145 Opts.StackAlignment = StackAlignment;
1148 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) {
1149 StringRef Val = A->getValue();
1150 unsigned StackProbeSize = Opts.StackProbeSize;
1151 Val.getAsInteger(0, StackProbeSize);
1152 Opts.StackProbeSize = StackProbeSize;
1155 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe);
1157 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) {
1158 StringRef Name = A->getValue();
1159 unsigned Method = llvm::StringSwitch<unsigned>(Name)
1160 .Case("legacy", CodeGenOptions::Legacy)
1161 .Case("non-legacy", CodeGenOptions::NonLegacy)
1162 .Case("mixed", CodeGenOptions::Mixed)
1164 if (Method == ~0U) {
1165 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
1168 Opts.setObjCDispatchMethod(
1169 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method));
1174 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls))
1175 Opts.ObjCConvertMessagesToRuntimeCalls = 0;
1177 if (Args.getLastArg(OPT_femulated_tls) ||
1178 Args.getLastArg(OPT_fno_emulated_tls)) {
1179 Opts.ExplicitEmulatedTLS = true;
1181 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false);
1184 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) {
1185 StringRef Name = A->getValue();
1186 unsigned Model = llvm::StringSwitch<unsigned>(Name)
1187 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel)
1188 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel)
1189 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel)
1190 .Case("local-exec", CodeGenOptions::LocalExecTLSModel)
1193 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
1196 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model));
1200 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) {
1201 StringRef Val = A->getValue();
1203 Opts.FPDenormalMode = "ieee";
1204 else if (Val == "preserve-sign")
1205 Opts.FPDenormalMode = "preserve-sign";
1206 else if (Val == "positive-zero")
1207 Opts.FPDenormalMode = "positive-zero";
1209 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
1212 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) {
1213 if (A->getOption().matches(OPT_fpcc_struct_return)) {
1214 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack);
1216 assert(A->getOption().matches(OPT_freg_struct_return));
1217 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs);
1221 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib);
1222 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option);
1223 bool NeedLocTracking = false;
1225 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file);
1226 if (!Opts.OptRecordFile.empty())
1227 NeedLocTracking = true;
1229 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) {
1230 Opts.OptRecordPasses = A->getValue();
1231 NeedLocTracking = true;
1234 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) {
1235 Opts.OptRecordFormat = A->getValue();
1236 NeedLocTracking = true;
1239 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) {
1240 Opts.OptimizationRemarkPattern =
1241 GenerateOptimizationRemarkRegex(Diags, Args, A);
1242 NeedLocTracking = true;
1245 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) {
1246 Opts.OptimizationRemarkMissedPattern =
1247 GenerateOptimizationRemarkRegex(Diags, Args, A);
1248 NeedLocTracking = true;
1251 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) {
1252 Opts.OptimizationRemarkAnalysisPattern =
1253 GenerateOptimizationRemarkRegex(Diags, Args, A);
1254 NeedLocTracking = true;
1257 Opts.DiagnosticsWithHotness =
1258 Args.hasArg(options::OPT_fdiagnostics_show_hotness);
1259 bool UsingSampleProfile = !Opts.SampleProfileFile.empty();
1260 bool UsingProfile = UsingSampleProfile ||
1261 (Opts.getProfileUse() != CodeGenOptions::ProfileNone);
1263 if (Opts.DiagnosticsWithHotness && !UsingProfile &&
1264 // An IR file will contain PGO as metadata
1265 IK.getLanguage() != InputKind::LLVM_IR)
1266 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo)
1267 << "-fdiagnostics-show-hotness";
1269 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value(
1270 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0);
1271 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile)
1272 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo)
1273 << "-fdiagnostics-hotness-threshold=";
1275 // If the user requested to use a sample profile for PGO, then the
1276 // backend will need to track source location information so the profile
1277 // can be incorporated into the IR.
1278 if (UsingSampleProfile)
1279 NeedLocTracking = true;
1281 // If the user requested a flag that requires source locations available in
1282 // the backend, make sure that the backend tracks source location information.
1283 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo)
1284 Opts.setDebugInfo(codegenoptions::LocTrackingOnly);
1286 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file);
1288 // Parse -fsanitize-recover= arguments.
1289 // FIXME: Report unrecoverable sanitizers incorrectly specified here.
1290 parseSanitizerKinds("-fsanitize-recover=",
1291 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags,
1292 Opts.SanitizeRecover);
1293 parseSanitizerKinds("-fsanitize-trap=",
1294 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags,
1297 Opts.CudaGpuBinaryFileName =
1298 Args.getLastArgValue(OPT_fcuda_include_gpubinary);
1300 Opts.Backchain = Args.hasArg(OPT_mbackchain);
1302 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue(
1303 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags);
1305 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true);
1307 Opts.Addrsig = Args.hasArg(OPT_faddrsig);
1309 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) {
1310 StringRef SignScope = A->getValue();
1312 if (SignScope.equals_lower("none"))
1313 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::None);
1314 else if (SignScope.equals_lower("all"))
1315 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::All);
1316 else if (SignScope.equals_lower("non-leaf"))
1317 Opts.setSignReturnAddress(
1318 CodeGenOptions::SignReturnAddressScope::NonLeaf);
1320 Diags.Report(diag::err_drv_invalid_value)
1321 << A->getAsString(Args) << SignScope;
1323 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) {
1324 StringRef SignKey = A->getValue();
1325 if (!SignScope.empty() && !SignKey.empty()) {
1326 if (SignKey.equals_lower("a_key"))
1327 Opts.setSignReturnAddressKey(
1328 CodeGenOptions::SignReturnAddressKeyValue::AKey);
1329 else if (SignKey.equals_lower("b_key"))
1330 Opts.setSignReturnAddressKey(
1331 CodeGenOptions::SignReturnAddressKeyValue::BKey);
1333 Diags.Report(diag::err_drv_invalid_value)
1334 << A->getAsString(Args) << SignKey;
1339 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce);
1341 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts);
1343 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening);
1345 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr);
1347 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ);
1349 Opts.SymbolPartition = Args.getLastArgValue(OPT_fsymbol_partition_EQ);
1354 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
1356 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file);
1357 Opts.Targets = Args.getAllArgValues(OPT_MT);
1358 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps);
1359 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps);
1360 Opts.UsePhonyTargets = Args.hasArg(OPT_MP);
1361 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H);
1362 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file);
1363 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG);
1364 if (Args.hasArg(OPT_show_includes)) {
1365 // Writing both /showIncludes and preprocessor output to stdout
1366 // would produce interleaved output, so use stderr for /showIncludes.
1367 // This behaves the same as cl.exe, when /E, /EP or /P are passed.
1368 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P))
1369 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr;
1371 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout;
1373 Opts.ShowIncludesDest = ShowIncludesDestination::None;
1375 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot);
1376 Opts.ModuleDependencyOutputDir =
1377 Args.getLastArgValue(OPT_module_dependency_dir);
1378 if (Args.hasArg(OPT_MV))
1379 Opts.OutputFormat = DependencyOutputFormat::NMake;
1380 // Add sanitizer blacklists as extra dependencies.
1381 // They won't be discovered by the regular preprocessor, so
1382 // we let make / ninja to know about this implicit dependency.
1383 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry);
1384 // Only the -fmodule-file=<file> form.
1385 for (const auto *A : Args.filtered(OPT_fmodule_file)) {
1386 StringRef Val = A->getValue();
1387 if (Val.find('=') == StringRef::npos)
1388 Opts.ExtraDeps.push_back(Val);
1392 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) {
1393 // Color diagnostics default to auto ("on" if terminal supports) in the driver
1394 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color.
1395 // Support both clang's -f[no-]color-diagnostics and gcc's
1396 // -f[no-]diagnostics-colors[=never|always|auto].
1401 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off;
1402 for (auto *A : Args) {
1403 const Option &O = A->getOption();
1404 if (O.matches(options::OPT_fcolor_diagnostics) ||
1405 O.matches(options::OPT_fdiagnostics_color)) {
1406 ShowColors = Colors_On;
1407 } else if (O.matches(options::OPT_fno_color_diagnostics) ||
1408 O.matches(options::OPT_fno_diagnostics_color)) {
1409 ShowColors = Colors_Off;
1410 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) {
1411 StringRef Value(A->getValue());
1412 if (Value == "always")
1413 ShowColors = Colors_On;
1414 else if (Value == "never")
1415 ShowColors = Colors_Off;
1416 else if (Value == "auto")
1417 ShowColors = Colors_Auto;
1420 return ShowColors == Colors_On ||
1421 (ShowColors == Colors_Auto &&
1422 llvm::sys::Process::StandardErrHasColors());
1425 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes,
1426 DiagnosticsEngine *Diags) {
1427 bool Success = true;
1428 for (const auto &Prefix : VerifyPrefixes) {
1429 // Every prefix must start with a letter and contain only alphanumeric
1430 // characters, hyphens, and underscores.
1431 auto BadChar = llvm::find_if(Prefix, [](char C) {
1432 return !isAlphanumeric(C) && C != '-' && C != '_';
1434 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) {
1437 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix;
1438 Diags->Report(diag::note_drv_verify_prefix_spelling);
1445 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
1446 DiagnosticsEngine *Diags,
1447 bool DefaultDiagColor, bool DefaultShowOpt) {
1448 bool Success = true;
1450 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file);
1452 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags))
1453 Opts.DiagnosticSerializationFile = A->getValue();
1454 Opts.IgnoreWarnings = Args.hasArg(OPT_w);
1455 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros);
1456 Opts.Pedantic = Args.hasArg(OPT_pedantic);
1457 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors);
1458 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics);
1459 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor);
1460 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column,
1461 OPT_fno_show_column,
1463 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info);
1464 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location);
1465 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths);
1466 Opts.ShowOptionNames =
1467 Args.hasFlag(OPT_fdiagnostics_show_option,
1468 OPT_fno_diagnostics_show_option, DefaultShowOpt);
1470 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes));
1472 // Default behavior is to not to show note include stacks.
1473 Opts.ShowNoteIncludeStack = false;
1474 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack,
1475 OPT_fno_diagnostics_show_note_include_stack))
1476 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack))
1477 Opts.ShowNoteIncludeStack = true;
1479 StringRef ShowOverloads =
1480 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all");
1481 if (ShowOverloads == "best")
1482 Opts.setShowOverloads(Ovl_Best);
1483 else if (ShowOverloads == "all")
1484 Opts.setShowOverloads(Ovl_All);
1488 Diags->Report(diag::err_drv_invalid_value)
1489 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args)
1493 StringRef ShowCategory =
1494 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none");
1495 if (ShowCategory == "none")
1496 Opts.ShowCategories = 0;
1497 else if (ShowCategory == "id")
1498 Opts.ShowCategories = 1;
1499 else if (ShowCategory == "name")
1500 Opts.ShowCategories = 2;
1504 Diags->Report(diag::err_drv_invalid_value)
1505 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args)
1510 Args.getLastArgValue(OPT_fdiagnostics_format, "clang");
1511 if (Format == "clang")
1512 Opts.setFormat(DiagnosticOptions::Clang);
1513 else if (Format == "msvc")
1514 Opts.setFormat(DiagnosticOptions::MSVC);
1515 else if (Format == "msvc-fallback") {
1516 Opts.setFormat(DiagnosticOptions::MSVC);
1517 Opts.CLFallbackMode = true;
1518 } else if (Format == "vi")
1519 Opts.setFormat(DiagnosticOptions::Vi);
1523 Diags->Report(diag::err_drv_invalid_value)
1524 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args)
1528 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info);
1529 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits);
1530 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location);
1531 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ);
1532 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ);
1533 if (Args.hasArg(OPT_verify))
1534 Opts.VerifyPrefixes.push_back("expected");
1535 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and
1536 // then sort it to prepare for fast lookup using std::binary_search.
1537 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) {
1538 Opts.VerifyDiagnostics = false;
1542 llvm::sort(Opts.VerifyPrefixes);
1543 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None;
1544 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=",
1545 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ),
1547 if (Args.hasArg(OPT_verify_ignore_unexpected))
1548 DiagMask = DiagnosticLevelMask::All;
1549 Opts.setVerifyIgnoreUnexpected(DiagMask);
1550 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type);
1551 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree);
1552 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags);
1553 Opts.MacroBacktraceLimit =
1554 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit,
1555 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags);
1556 Opts.TemplateBacktraceLimit = getLastArgIntValue(
1557 Args, OPT_ftemplate_backtrace_limit,
1558 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags);
1559 Opts.ConstexprBacktraceLimit = getLastArgIntValue(
1560 Args, OPT_fconstexpr_backtrace_limit,
1561 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags);
1562 Opts.SpellCheckingLimit = getLastArgIntValue(
1563 Args, OPT_fspell_checking_limit,
1564 DiagnosticOptions::DefaultSpellCheckingLimit, Diags);
1565 Opts.SnippetLineLimit = getLastArgIntValue(
1566 Args, OPT_fcaret_diagnostics_max_lines,
1567 DiagnosticOptions::DefaultSnippetLineLimit, Diags);
1568 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop,
1569 DiagnosticOptions::DefaultTabStop, Diags);
1570 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
1571 Opts.TabStop = DiagnosticOptions::DefaultTabStop;
1573 Diags->Report(diag::warn_ignoring_ftabstop_value)
1574 << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
1576 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags);
1577 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings);
1578 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks);
1583 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) {
1584 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory);
1587 /// Parse the argument to the -ftest-module-file-extension
1588 /// command-line argument.
1590 /// \returns true on error, false on success.
1591 static bool parseTestModuleFileExtensionArg(StringRef Arg,
1592 std::string &BlockName,
1593 unsigned &MajorVersion,
1594 unsigned &MinorVersion,
1596 std::string &UserInfo) {
1597 SmallVector<StringRef, 5> Args;
1598 Arg.split(Args, ':', 5);
1599 if (Args.size() < 5)
1602 BlockName = Args[0];
1603 if (Args[1].getAsInteger(10, MajorVersion)) return true;
1604 if (Args[2].getAsInteger(10, MinorVersion)) return true;
1605 if (Args[3].getAsInteger(2, Hashed)) return true;
1606 if (Args.size() > 4)
1611 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
1612 DiagnosticsEngine &Diags,
1613 bool &IsHeaderFile) {
1614 Opts.ProgramAction = frontend::ParseSyntaxOnly;
1615 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) {
1616 switch (A->getOption().getID()) {
1618 llvm_unreachable("Invalid option in group!");
1620 Opts.ProgramAction = frontend::ASTDeclList; break;
1621 case OPT_ast_dump_all_EQ:
1622 case OPT_ast_dump_EQ: {
1623 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue())
1624 .CaseLower("default", ADOF_Default)
1625 .CaseLower("json", ADOF_JSON)
1626 .Default(std::numeric_limits<unsigned>::max());
1628 if (Val != std::numeric_limits<unsigned>::max())
1629 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val);
1631 Diags.Report(diag::err_drv_invalid_value)
1632 << A->getAsString(Args) << A->getValue();
1633 Opts.ASTDumpFormat = ADOF_Default;
1638 case OPT_ast_dump_all:
1639 case OPT_ast_dump_lookups:
1640 Opts.ProgramAction = frontend::ASTDump; break;
1642 Opts.ProgramAction = frontend::ASTPrint; break;
1644 Opts.ProgramAction = frontend::ASTView; break;
1645 case OPT_compiler_options_dump:
1646 Opts.ProgramAction = frontend::DumpCompilerOptions; break;
1647 case OPT_dump_raw_tokens:
1648 Opts.ProgramAction = frontend::DumpRawTokens; break;
1649 case OPT_dump_tokens:
1650 Opts.ProgramAction = frontend::DumpTokens; break;
1652 Opts.ProgramAction = frontend::EmitAssembly; break;
1653 case OPT_emit_llvm_bc:
1654 Opts.ProgramAction = frontend::EmitBC; break;
1656 Opts.ProgramAction = frontend::EmitHTML; break;
1658 Opts.ProgramAction = frontend::EmitLLVM; break;
1659 case OPT_emit_llvm_only:
1660 Opts.ProgramAction = frontend::EmitLLVMOnly; break;
1661 case OPT_emit_codegen_only:
1662 Opts.ProgramAction = frontend::EmitCodeGenOnly; break;
1664 Opts.ProgramAction = frontend::EmitObj; break;
1666 Opts.FixItSuffix = A->getValue();
1669 Opts.ProgramAction = frontend::FixIt; break;
1670 case OPT_emit_module:
1671 Opts.ProgramAction = frontend::GenerateModule; break;
1672 case OPT_emit_module_interface:
1673 Opts.ProgramAction = frontend::GenerateModuleInterface; break;
1674 case OPT_emit_header_module:
1675 Opts.ProgramAction = frontend::GenerateHeaderModule; break;
1677 Opts.ProgramAction = frontend::GeneratePCH; break;
1678 case OPT_emit_iterface_stubs: {
1679 llvm::Optional<frontend::ActionKind> ProgramAction =
1680 llvm::StringSwitch<llvm::Optional<frontend::ActionKind>>(
1681 Args.hasArg(OPT_iterface_stub_version_EQ)
1682 ? Args.getLastArgValue(OPT_iterface_stub_version_EQ)
1684 .Case("experimental-yaml-elf-v1",
1685 frontend::GenerateInterfaceYAMLExpV1)
1686 .Case("experimental-tapi-elf-v1",
1687 frontend::GenerateInterfaceTBEExpV1)
1688 .Default(llvm::None);
1690 Diags.Report(diag::err_drv_invalid_value)
1691 << "Must specify a valid interface stub format type using "
1692 << "-interface-stub-version=<experimental-tapi-elf-v1 | "
1693 "experimental-yaml-elf-v1>";
1694 Opts.ProgramAction = *ProgramAction;
1698 Opts.ProgramAction = frontend::InitOnly; break;
1699 case OPT_fsyntax_only:
1700 Opts.ProgramAction = frontend::ParseSyntaxOnly; break;
1701 case OPT_module_file_info:
1702 Opts.ProgramAction = frontend::ModuleFileInfo; break;
1703 case OPT_verify_pch:
1704 Opts.ProgramAction = frontend::VerifyPCH; break;
1705 case OPT_print_preamble:
1706 Opts.ProgramAction = frontend::PrintPreamble; break;
1708 Opts.ProgramAction = frontend::PrintPreprocessedInput; break;
1709 case OPT_templight_dump:
1710 Opts.ProgramAction = frontend::TemplightDump; break;
1711 case OPT_rewrite_macros:
1712 Opts.ProgramAction = frontend::RewriteMacros; break;
1713 case OPT_rewrite_objc:
1714 Opts.ProgramAction = frontend::RewriteObjC; break;
1715 case OPT_rewrite_test:
1716 Opts.ProgramAction = frontend::RewriteTest; break;
1718 Opts.ProgramAction = frontend::RunAnalysis; break;
1720 Opts.ProgramAction = frontend::MigrateSource; break;
1722 Opts.ProgramAction = frontend::RunPreprocessorOnly; break;
1723 case OPT_print_dependency_directives_minimized_source:
1724 Opts.ProgramAction =
1725 frontend::PrintDependencyDirectivesSourceMinimizerOutput;
1730 if (const Arg* A = Args.getLastArg(OPT_plugin)) {
1731 Opts.Plugins.emplace_back(A->getValue(0));
1732 Opts.ProgramAction = frontend::PluginAction;
1733 Opts.ActionName = A->getValue();
1735 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin);
1736 for (const auto *AA : Args.filtered(OPT_plugin_arg))
1737 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1));
1739 for (const std::string &Arg :
1740 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) {
1741 std::string BlockName;
1742 unsigned MajorVersion;
1743 unsigned MinorVersion;
1745 std::string UserInfo;
1746 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion,
1747 MinorVersion, Hashed, UserInfo)) {
1748 Diags.Report(diag::err_test_module_file_extension_format) << Arg;
1753 // Add the testing module file extension.
1754 Opts.ModuleFileExtensions.push_back(
1755 std::make_shared<TestModuleFileExtension>(
1756 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo));
1759 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) {
1760 Opts.CodeCompletionAt =
1761 ParsedSourceLocation::FromString(A->getValue());
1762 if (Opts.CodeCompletionAt.FileName.empty())
1763 Diags.Report(diag::err_drv_invalid_value)
1764 << A->getAsString(Args) << A->getValue();
1766 Opts.DisableFree = Args.hasArg(OPT_disable_free);
1768 Opts.OutputFile = Args.getLastArgValue(OPT_o);
1769 Opts.Plugins = Args.getAllArgValues(OPT_load);
1770 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch);
1771 Opts.ShowHelp = Args.hasArg(OPT_help);
1772 Opts.ShowStats = Args.hasArg(OPT_print_stats);
1773 Opts.ShowTimers = Args.hasArg(OPT_ftime_report);
1774 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus);
1775 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace);
1776 Opts.ShowVersion = Args.hasArg(OPT_version);
1777 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge);
1778 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
1779 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can);
1780 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings);
1781 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile);
1782 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp);
1783 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ);
1784 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ);
1785 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter);
1786 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups);
1787 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index);
1788 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex;
1789 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file);
1790 // Only the -fmodule-file=<file> form.
1791 for (const auto *A : Args.filtered(OPT_fmodule_file)) {
1792 StringRef Val = A->getValue();
1793 if (Val.find('=') == StringRef::npos)
1794 Opts.ModuleFiles.push_back(Val);
1796 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ);
1797 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files);
1798 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp);
1800 Opts.CodeCompleteOpts.IncludeMacros
1801 = Args.hasArg(OPT_code_completion_macros);
1802 Opts.CodeCompleteOpts.IncludeCodePatterns
1803 = Args.hasArg(OPT_code_completion_patterns);
1804 Opts.CodeCompleteOpts.IncludeGlobals
1805 = !Args.hasArg(OPT_no_code_completion_globals);
1806 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls
1807 = !Args.hasArg(OPT_no_code_completion_ns_level_decls);
1808 Opts.CodeCompleteOpts.IncludeBriefComments
1809 = Args.hasArg(OPT_code_completion_brief_comments);
1810 Opts.CodeCompleteOpts.IncludeFixIts
1811 = Args.hasArg(OPT_code_completion_with_fixits);
1813 Opts.OverrideRecordLayoutsFile
1814 = Args.getLastArgValue(OPT_foverride_record_layout_EQ);
1815 Opts.AuxTriple = Args.getLastArgValue(OPT_aux_triple);
1816 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file);
1818 if (const Arg *A = Args.getLastArg(OPT_arcmt_check,
1820 OPT_arcmt_migrate)) {
1821 switch (A->getOption().getID()) {
1823 llvm_unreachable("missed a case");
1824 case OPT_arcmt_check:
1825 Opts.ARCMTAction = FrontendOptions::ARCMT_Check;
1827 case OPT_arcmt_modify:
1828 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify;
1830 case OPT_arcmt_migrate:
1831 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate;
1835 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory);
1836 Opts.ARCMTMigrateReportOut
1837 = Args.getLastArgValue(OPT_arcmt_migrate_report_output);
1838 Opts.ARCMTMigrateEmitARCErrors
1839 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors);
1841 if (Args.hasArg(OPT_objcmt_migrate_literals))
1842 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals;
1843 if (Args.hasArg(OPT_objcmt_migrate_subscripting))
1844 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting;
1845 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax))
1846 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax;
1847 if (Args.hasArg(OPT_objcmt_migrate_property))
1848 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property;
1849 if (Args.hasArg(OPT_objcmt_migrate_readonly_property))
1850 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty;
1851 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property))
1852 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty;
1853 if (Args.hasArg(OPT_objcmt_migrate_annotation))
1854 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation;
1855 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property))
1856 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty;
1857 if (Args.hasArg(OPT_objcmt_migrate_instancetype))
1858 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype;
1859 if (Args.hasArg(OPT_objcmt_migrate_nsmacros))
1860 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros;
1861 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance))
1862 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance;
1863 if (Args.hasArg(OPT_objcmt_atomic_property))
1864 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty;
1865 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly))
1866 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty;
1867 if (Args.hasArg(OPT_objcmt_migrate_designated_init))
1868 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer;
1869 if (Args.hasArg(OPT_objcmt_migrate_all))
1870 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls;
1872 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path);
1874 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None &&
1875 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) {
1876 Diags.Report(diag::err_drv_argument_not_allowed_with)
1877 << "ARC migration" << "ObjC migration";
1880 InputKind DashX(InputKind::Unknown);
1881 if (const Arg *A = Args.getLastArg(OPT_x)) {
1882 StringRef XValue = A->getValue();
1884 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'.
1885 // FIXME: Supporting '<lang>-header-cpp-output' would be useful.
1886 bool Preprocessed = XValue.consume_back("-cpp-output");
1887 bool ModuleMap = XValue.consume_back("-module-map");
1889 !Preprocessed && !ModuleMap && XValue.consume_back("-header");
1891 // Principal languages.
1892 DashX = llvm::StringSwitch<InputKind>(XValue)
1893 .Case("c", InputKind::C)
1894 .Case("cl", InputKind::OpenCL)
1895 .Case("cuda", InputKind::CUDA)
1896 .Case("hip", InputKind::HIP)
1897 .Case("c++", InputKind::CXX)
1898 .Case("objective-c", InputKind::ObjC)
1899 .Case("objective-c++", InputKind::ObjCXX)
1900 .Case("renderscript", InputKind::RenderScript)
1901 .Default(InputKind::Unknown);
1903 // "objc[++]-cpp-output" is an acceptable synonym for
1904 // "objective-c[++]-cpp-output".
1905 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap)
1906 DashX = llvm::StringSwitch<InputKind>(XValue)
1907 .Case("objc", InputKind::ObjC)
1908 .Case("objc++", InputKind::ObjCXX)
1909 .Default(InputKind::Unknown);
1911 // Some special cases cannot be combined with suffixes.
1912 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile)
1913 DashX = llvm::StringSwitch<InputKind>(XValue)
1914 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed())
1915 .Case("assembler-with-cpp", InputKind::Asm)
1916 .Cases("ast", "pcm",
1917 InputKind(InputKind::Unknown, InputKind::Precompiled))
1918 .Case("ir", InputKind::LLVM_IR)
1919 .Default(InputKind::Unknown);
1921 if (DashX.isUnknown())
1922 Diags.Report(diag::err_drv_invalid_value)
1923 << A->getAsString(Args) << A->getValue();
1926 DashX = DashX.getPreprocessed();
1928 DashX = DashX.withFormat(InputKind::ModuleMap);
1931 // '-' is the default input if none is given.
1932 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT);
1933 Opts.Inputs.clear();
1935 Inputs.push_back("-");
1936 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
1937 InputKind IK = DashX;
1938 if (IK.isUnknown()) {
1939 IK = FrontendOptions::getInputKindForExtension(
1940 StringRef(Inputs[i]).rsplit('.').second);
1941 // FIXME: Warn on this?
1944 // FIXME: Remove this hack.
1949 // The -emit-module action implicitly takes a module map.
1950 if (Opts.ProgramAction == frontend::GenerateModule &&
1951 IK.getFormat() == InputKind::Source)
1952 IK = IK.withFormat(InputKind::ModuleMap);
1954 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK);
1960 std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
1962 std::string ClangExecutable =
1963 llvm::sys::fs::getMainExecutable(Argv0, MainAddr);
1964 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR);
1967 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args,
1968 const std::string &WorkingDir) {
1969 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/");
1970 Opts.Verbose = Args.hasArg(OPT_v);
1971 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
1972 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc);
1973 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
1974 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ))
1975 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0);
1976 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir);
1978 // Canonicalize -fmodules-cache-path before storing it.
1979 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path));
1980 if (!(P.empty() || llvm::sys::path::is_absolute(P))) {
1981 if (WorkingDir.empty())
1982 llvm::sys::fs::make_absolute(P);
1984 llvm::sys::fs::make_absolute(WorkingDir, P);
1986 llvm::sys::path::remove_dots(P);
1987 Opts.ModuleCachePath = P.str();
1989 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path);
1990 // Only the -fmodule-file=<name>=<file> form.
1991 for (const auto *A : Args.filtered(OPT_fmodule_file)) {
1992 StringRef Val = A->getValue();
1993 if (Val.find('=') != StringRef::npos)
1994 Opts.PrebuiltModuleFiles.insert(Val.split('='));
1996 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path))
1997 Opts.AddPrebuiltModulePath(A->getValue());
1998 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash);
1999 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content);
2000 Opts.ModulesValidateDiagnosticOptions =
2001 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation);
2002 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps);
2003 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd);
2004 Opts.ModuleCachePruneInterval =
2005 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60);
2006 Opts.ModuleCachePruneAfter =
2007 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60);
2008 Opts.ModulesValidateOncePerBuildSession =
2009 Args.hasArg(OPT_fmodules_validate_once_per_build_session);
2010 Opts.BuildSessionTimestamp =
2011 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0);
2012 Opts.ModulesValidateSystemHeaders =
2013 Args.hasArg(OPT_fmodules_validate_system_headers);
2014 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ))
2015 Opts.ModuleFormat = A->getValue();
2017 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) {
2018 StringRef MacroDef = A->getValue();
2019 Opts.ModulesIgnoreMacros.insert(
2020 llvm::CachedHashString(MacroDef.split('=').first));
2023 // Add -I..., -F..., and -index-header-map options in order.
2024 bool IsIndexHeaderMap = false;
2025 bool IsSysrootSpecified =
2026 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot);
2027 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) {
2028 if (A->getOption().matches(OPT_index_header_map)) {
2029 // -index-header-map applies to the next -I or -F.
2030 IsIndexHeaderMap = true;
2034 frontend::IncludeDirGroup Group =
2035 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled;
2037 bool IsFramework = A->getOption().matches(OPT_F);
2038 std::string Path = A->getValue();
2040 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') {
2041 SmallString<32> Buffer;
2042 llvm::sys::path::append(Buffer, Opts.Sysroot,
2043 llvm::StringRef(A->getValue()).substr(1));
2044 Path = Buffer.str();
2047 Opts.AddPath(Path, Group, IsFramework,
2048 /*IgnoreSysroot*/ true);
2049 IsIndexHeaderMap = false;
2052 // Add -iprefix/-iwithprefix/-iwithprefixbefore options.
2053 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
2054 for (const auto *A :
2055 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) {
2056 if (A->getOption().matches(OPT_iprefix))
2057 Prefix = A->getValue();
2058 else if (A->getOption().matches(OPT_iwithprefix))
2059 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true);
2061 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true);
2064 for (const auto *A : Args.filtered(OPT_idirafter))
2065 Opts.AddPath(A->getValue(), frontend::After, false, true);
2066 for (const auto *A : Args.filtered(OPT_iquote))
2067 Opts.AddPath(A->getValue(), frontend::Quoted, false, true);
2068 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot))
2069 Opts.AddPath(A->getValue(), frontend::System, false,
2070 !A->getOption().matches(OPT_iwithsysroot));
2071 for (const auto *A : Args.filtered(OPT_iframework))
2072 Opts.AddPath(A->getValue(), frontend::System, true, true);
2073 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot))
2074 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true,
2075 /*IgnoreSysRoot=*/false);
2077 // Add the paths for the various language specific isystem flags.
2078 for (const auto *A : Args.filtered(OPT_c_isystem))
2079 Opts.AddPath(A->getValue(), frontend::CSystem, false, true);
2080 for (const auto *A : Args.filtered(OPT_cxx_isystem))
2081 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true);
2082 for (const auto *A : Args.filtered(OPT_objc_isystem))
2083 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true);
2084 for (const auto *A : Args.filtered(OPT_objcxx_isystem))
2085 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true);
2087 // Add the internal paths from a driver that detects standard include paths.
2088 for (const auto *A :
2089 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) {
2090 frontend::IncludeDirGroup Group = frontend::System;
2091 if (A->getOption().matches(OPT_internal_externc_isystem))
2092 Group = frontend::ExternCSystem;
2093 Opts.AddPath(A->getValue(), Group, false, true);
2096 // Add the path prefixes which are implicitly treated as being system headers.
2097 for (const auto *A :
2098 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix))
2099 Opts.AddSystemHeaderPrefix(
2100 A->getValue(), A->getOption().matches(OPT_system_header_prefix));
2102 for (const auto *A : Args.filtered(OPT_ivfsoverlay))
2103 Opts.AddVFSOverlayFile(A->getValue());
2106 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK,
2107 const llvm::Triple &T,
2108 PreprocessorOptions &PPOpts,
2109 LangStandard::Kind LangStd) {
2110 // Set some properties which depend solely on the input kind; it would be nice
2111 // to move these to the language standard, and have the driver resolve the
2112 // input kind + language standard.
2114 // FIXME: Perhaps a better model would be for a single source file to have
2115 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std)
2116 // simultaneously active?
2117 if (IK.getLanguage() == InputKind::Asm) {
2118 Opts.AsmPreprocessor = 1;
2119 } else if (IK.isObjectiveC()) {
2123 if (LangStd == LangStandard::lang_unspecified) {
2124 // Based on the base language, pick one.
2125 switch (IK.getLanguage()) {
2126 case InputKind::Unknown:
2127 case InputKind::LLVM_IR:
2128 llvm_unreachable("Invalid input kind!");
2129 case InputKind::OpenCL:
2130 LangStd = LangStandard::lang_opencl10;
2132 case InputKind::CUDA:
2133 LangStd = LangStandard::lang_cuda;
2135 case InputKind::Asm:
2137 #if defined(CLANG_DEFAULT_STD_C)
2138 LangStd = CLANG_DEFAULT_STD_C;
2140 // The PS4 uses C99 as the default C standard.
2142 LangStd = LangStandard::lang_gnu99;
2144 LangStd = LangStandard::lang_gnu11;
2147 case InputKind::ObjC:
2148 #if defined(CLANG_DEFAULT_STD_C)
2149 LangStd = CLANG_DEFAULT_STD_C;
2151 LangStd = LangStandard::lang_gnu11;
2154 case InputKind::CXX:
2155 case InputKind::ObjCXX:
2156 #if defined(CLANG_DEFAULT_STD_CXX)
2157 LangStd = CLANG_DEFAULT_STD_CXX;
2159 LangStd = LangStandard::lang_gnucxx14;
2162 case InputKind::RenderScript:
2163 LangStd = LangStandard::lang_c99;
2165 case InputKind::HIP:
2166 LangStd = LangStandard::lang_hip;
2171 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
2172 Opts.LineComment = Std.hasLineComments();
2173 Opts.C99 = Std.isC99();
2174 Opts.C11 = Std.isC11();
2175 Opts.C17 = Std.isC17();
2176 Opts.C2x = Std.isC2x();
2177 Opts.CPlusPlus = Std.isCPlusPlus();
2178 Opts.CPlusPlus11 = Std.isCPlusPlus11();
2179 Opts.CPlusPlus14 = Std.isCPlusPlus14();
2180 Opts.CPlusPlus17 = Std.isCPlusPlus17();
2181 Opts.CPlusPlus2a = Std.isCPlusPlus2a();
2182 Opts.Digraphs = Std.hasDigraphs();
2183 Opts.GNUMode = Std.isGNUMode();
2184 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus;
2185 Opts.HexFloats = Std.hasHexFloats();
2186 Opts.ImplicitInt = Std.hasImplicitInt();
2188 // Set OpenCL Version.
2189 Opts.OpenCL = Std.isOpenCL();
2190 if (LangStd == LangStandard::lang_opencl10)
2191 Opts.OpenCLVersion = 100;
2192 else if (LangStd == LangStandard::lang_opencl11)
2193 Opts.OpenCLVersion = 110;
2194 else if (LangStd == LangStandard::lang_opencl12)
2195 Opts.OpenCLVersion = 120;
2196 else if (LangStd == LangStandard::lang_opencl20)
2197 Opts.OpenCLVersion = 200;
2198 else if (LangStd == LangStandard::lang_openclcpp)
2199 Opts.OpenCLCPlusPlusVersion = 100;
2201 // OpenCL has some additional defaults.
2205 Opts.LaxVectorConversions = 0;
2206 Opts.setDefaultFPContractMode(LangOptions::FPC_On);
2207 Opts.NativeHalfType = 1;
2208 Opts.NativeHalfArgsAndReturns = 1;
2209 Opts.OpenCLCPlusPlus = Opts.CPlusPlus;
2211 // Include default header file for OpenCL.
2212 if (Opts.IncludeDefaultHeader) {
2213 if (Opts.DeclareOpenCLBuiltins) {
2214 // Only include base header file for builtin types and constants.
2215 PPOpts.Includes.push_back("opencl-c-base.h");
2217 PPOpts.Includes.push_back("opencl-c.h");
2222 Opts.HIP = IK.getLanguage() == InputKind::HIP;
2223 Opts.CUDA = IK.getLanguage() == InputKind::CUDA || Opts.HIP;
2225 // Set default FP_CONTRACT to FAST.
2226 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast);
2228 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript;
2229 if (Opts.RenderScript) {
2230 Opts.NativeHalfType = 1;
2231 Opts.NativeHalfArgsAndReturns = 1;
2234 // OpenCL and C++ both have bool, true, false keywords.
2235 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
2237 // OpenCL has half keyword
2238 Opts.Half = Opts.OpenCL;
2240 // C++ has wchar_t keyword.
2241 Opts.WChar = Opts.CPlusPlus;
2243 Opts.GNUKeywords = Opts.GNUMode;
2244 Opts.CXXOperatorNames = Opts.CPlusPlus;
2246 Opts.AlignedAllocation = Opts.CPlusPlus17;
2248 Opts.DollarIdents = !Opts.AsmPreprocessor;
2250 // Enable [[]] attributes in C++11 and C2x by default.
2251 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x;
2254 /// Attempt to parse a visibility value out of the given argument.
2255 static Visibility parseVisibility(Arg *arg, ArgList &args,
2256 DiagnosticsEngine &diags) {
2257 StringRef value = arg->getValue();
2258 if (value == "default") {
2259 return DefaultVisibility;
2260 } else if (value == "hidden" || value == "internal") {
2261 return HiddenVisibility;
2262 } else if (value == "protected") {
2263 // FIXME: diagnose if target does not support protected visibility
2264 return ProtectedVisibility;
2267 diags.Report(diag::err_drv_invalid_value)
2268 << arg->getAsString(args) << value;
2269 return DefaultVisibility;
2272 /// Check if input file kind and language standard are compatible.
2273 static bool IsInputCompatibleWithStandard(InputKind IK,
2274 const LangStandard &S) {
2275 switch (IK.getLanguage()) {
2276 case InputKind::Unknown:
2277 case InputKind::LLVM_IR:
2278 llvm_unreachable("should not parse language flags for this input");
2281 case InputKind::ObjC:
2282 case InputKind::RenderScript:
2283 return S.getLanguage() == InputKind::C;
2285 case InputKind::OpenCL:
2286 return S.getLanguage() == InputKind::OpenCL;
2288 case InputKind::CXX:
2289 case InputKind::ObjCXX:
2290 return S.getLanguage() == InputKind::CXX;
2292 case InputKind::CUDA:
2293 // FIXME: What -std= values should be permitted for CUDA compilations?
2294 return S.getLanguage() == InputKind::CUDA ||
2295 S.getLanguage() == InputKind::CXX;
2297 case InputKind::HIP:
2298 return S.getLanguage() == InputKind::CXX ||
2299 S.getLanguage() == InputKind::HIP;
2301 case InputKind::Asm:
2302 // Accept (and ignore) all -std= values.
2303 // FIXME: The -std= value is not ignored; it affects the tokenization
2304 // and preprocessing rules if we're preprocessing this asm input.
2308 llvm_unreachable("unexpected input language");
2311 /// Get language name for given input kind.
2312 static const StringRef GetInputKindName(InputKind IK) {
2313 switch (IK.getLanguage()) {
2316 case InputKind::ObjC:
2317 return "Objective-C";
2318 case InputKind::CXX:
2320 case InputKind::ObjCXX:
2321 return "Objective-C++";
2322 case InputKind::OpenCL:
2324 case InputKind::CUDA:
2326 case InputKind::RenderScript:
2327 return "RenderScript";
2328 case InputKind::HIP:
2331 case InputKind::Asm:
2333 case InputKind::LLVM_IR:
2336 case InputKind::Unknown:
2339 llvm_unreachable("unknown input language");
2342 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
2343 const TargetOptions &TargetOpts,
2344 PreprocessorOptions &PPOpts,
2345 DiagnosticsEngine &Diags) {
2346 // FIXME: Cleanup per-file based stuff.
2347 LangStandard::Kind LangStd = LangStandard::lang_unspecified;
2348 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) {
2349 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
2350 #define LANGSTANDARD(id, name, lang, desc, features) \
2351 .Case(name, LangStandard::lang_##id)
2352 #define LANGSTANDARD_ALIAS(id, alias) \
2353 .Case(alias, LangStandard::lang_##id)
2354 #include "clang/Frontend/LangStandards.def"
2355 .Default(LangStandard::lang_unspecified);
2356 if (LangStd == LangStandard::lang_unspecified) {
2357 Diags.Report(diag::err_drv_invalid_value)
2358 << A->getAsString(Args) << A->getValue();
2359 // Report supported standards with short description.
2360 for (unsigned KindValue = 0;
2361 KindValue != LangStandard::lang_unspecified;
2363 const LangStandard &Std = LangStandard::getLangStandardForKind(
2364 static_cast<LangStandard::Kind>(KindValue));
2365 if (IsInputCompatibleWithStandard(IK, Std)) {
2366 auto Diag = Diags.Report(diag::note_drv_use_standard);
2367 Diag << Std.getName() << Std.getDescription();
2368 unsigned NumAliases = 0;
2369 #define LANGSTANDARD(id, name, lang, desc, features)
2370 #define LANGSTANDARD_ALIAS(id, alias) \
2371 if (KindValue == LangStandard::lang_##id) ++NumAliases;
2372 #define LANGSTANDARD_ALIAS_DEPR(id, alias)
2373 #include "clang/Frontend/LangStandards.def"
2375 #define LANGSTANDARD(id, name, lang, desc, features)
2376 #define LANGSTANDARD_ALIAS(id, alias) \
2377 if (KindValue == LangStandard::lang_##id) Diag << alias;
2378 #define LANGSTANDARD_ALIAS_DEPR(id, alias)
2379 #include "clang/Frontend/LangStandards.def"
2383 // Valid standard, check to make sure language and standard are
2385 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
2386 if (!IsInputCompatibleWithStandard(IK, Std)) {
2387 Diags.Report(diag::err_drv_argument_not_allowed_with)
2388 << A->getAsString(Args) << GetInputKindName(IK);
2393 if (Args.hasArg(OPT_fno_dllexport_inlines))
2394 Opts.DllExportInlines = false;
2396 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) {
2397 StringRef Name = A->getValue();
2398 if (Name == "full" || Name == "branch") {
2399 Opts.CFProtectionBranch = 1;
2402 // -cl-std only applies for OpenCL language standards.
2403 // Override the -std option in this case.
2404 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) {
2405 LangStandard::Kind OpenCLLangStd
2406 = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
2407 .Cases("cl", "CL", LangStandard::lang_opencl10)
2408 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11)
2409 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12)
2410 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20)
2411 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp)
2412 .Default(LangStandard::lang_unspecified);
2414 if (OpenCLLangStd == LangStandard::lang_unspecified) {
2415 Diags.Report(diag::err_drv_invalid_value)
2416 << A->getAsString(Args) << A->getValue();
2419 LangStd = OpenCLLangStd;
2422 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header);
2423 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins);
2425 llvm::Triple T(TargetOpts.Triple);
2426 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd);
2428 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0.
2429 // This option should be deprecated for CL > 1.0 because
2430 // this option was added for compatibility with OpenCL 1.0.
2431 if (Args.getLastArg(OPT_cl_strict_aliasing)
2432 && Opts.OpenCLVersion > 100) {
2433 Diags.Report(diag::warn_option_invalid_ocl_version)
2434 << Opts.getOpenCLVersionTuple().getAsString()
2435 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args);
2438 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension
2439 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag,
2440 // while a subset (the non-C++ GNU keywords) is provided by GCC's
2441 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single
2442 // name, as it doesn't seem a useful distinction.
2443 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords,
2446 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs);
2448 if (Args.hasArg(OPT_fno_operator_names))
2449 Opts.CXXOperatorNames = 0;
2451 if (Args.hasArg(OPT_fcuda_is_device))
2452 Opts.CUDAIsDevice = 1;
2454 if (Args.hasArg(OPT_fcuda_allow_variadic_functions))
2455 Opts.CUDAAllowVariadicFunctions = 1;
2457 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr))
2458 Opts.CUDAHostDeviceConstexpr = 0;
2460 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals))
2461 Opts.CUDADeviceApproxTranscendentals = 1;
2463 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc);
2466 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) {
2467 StringRef value = arg->getValue();
2468 if (Opts.ObjCRuntime.tryParse(value))
2469 Diags.Report(diag::err_drv_unknown_objc_runtime) << value;
2472 if (Args.hasArg(OPT_fobjc_gc_only))
2473 Opts.setGC(LangOptions::GCOnly);
2474 else if (Args.hasArg(OPT_fobjc_gc))
2475 Opts.setGC(LangOptions::HybridGC);
2476 else if (Args.hasArg(OPT_fobjc_arc)) {
2477 Opts.ObjCAutoRefCount = 1;
2478 if (!Opts.ObjCRuntime.allowsARC())
2479 Diags.Report(diag::err_arc_unsupported_on_runtime);
2482 // ObjCWeakRuntime tracks whether the runtime supports __weak, not
2483 // whether the feature is actually enabled. This is predominantly
2484 // determined by -fobjc-runtime, but we allow it to be overridden
2485 // from the command line for testing purposes.
2486 if (Args.hasArg(OPT_fobjc_runtime_has_weak))
2487 Opts.ObjCWeakRuntime = 1;
2489 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak();
2491 // ObjCWeak determines whether __weak is actually enabled.
2492 // Note that we allow -fno-objc-weak to disable this even in ARC mode.
2493 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) {
2494 if (!weakArg->getOption().matches(OPT_fobjc_weak)) {
2495 assert(!Opts.ObjCWeak);
2496 } else if (Opts.getGC() != LangOptions::NonGC) {
2497 Diags.Report(diag::err_objc_weak_with_gc);
2498 } else if (!Opts.ObjCWeakRuntime) {
2499 Diags.Report(diag::err_objc_weak_unsupported);
2503 } else if (Opts.ObjCAutoRefCount) {
2504 Opts.ObjCWeak = Opts.ObjCWeakRuntime;
2507 if (Args.hasArg(OPT_fno_objc_infer_related_result_type))
2508 Opts.ObjCInferRelatedResultType = 0;
2510 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime))
2511 Opts.ObjCSubscriptingLegacyRuntime =
2512 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX);
2515 if (Args.hasArg(OPT_fgnu89_inline)) {
2517 Diags.Report(diag::err_drv_argument_not_allowed_with)
2518 << "-fgnu89-inline" << GetInputKindName(IK);
2523 if (Args.hasArg(OPT_fapple_kext)) {
2524 if (!Opts.CPlusPlus)
2525 Diags.Report(diag::warn_c_kext);
2530 if (Args.hasArg(OPT_print_ivar_layout))
2531 Opts.ObjCGCBitmapPrint = 1;
2533 if (Args.hasArg(OPT_fno_constant_cfstrings))
2534 Opts.NoConstantCFStrings = 1;
2535 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ))
2537 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue())
2538 .Cases("unspecified", "standalone", "objc",
2539 LangOptions::CoreFoundationABI::ObjectiveC)
2540 .Cases("swift", "swift-5.0",
2541 LangOptions::CoreFoundationABI::Swift5_0)
2542 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2)
2543 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1)
2544 .Default(LangOptions::CoreFoundationABI::ObjectiveC);
2546 if (Args.hasArg(OPT_fzvector))
2549 if (Args.hasArg(OPT_pthread))
2550 Opts.POSIXThreads = 1;
2552 // The value-visibility mode defaults to "default".
2553 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) {
2554 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags));
2556 Opts.setValueVisibilityMode(DefaultVisibility);
2559 // The type-visibility mode defaults to the value-visibility mode.
2560 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) {
2561 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags));
2563 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode());
2566 if (Args.hasArg(OPT_fvisibility_inlines_hidden))
2567 Opts.InlineVisibilityHidden = 1;
2569 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden))
2570 Opts.GlobalAllocationFunctionVisibilityHidden = 1;
2572 if (Args.hasArg(OPT_fapply_global_visibility_to_externs))
2573 Opts.SetVisibilityForExternDecls = 1;
2575 if (Args.hasArg(OPT_ftrapv)) {
2576 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
2577 // Set the handler, if one is specified.
2578 Opts.OverflowHandler =
2579 Args.getLastArgValue(OPT_ftrapv_handler);
2581 else if (Args.hasArg(OPT_fwrapv))
2582 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
2584 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility);
2585 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions);
2586 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt;
2587 Opts.MSCompatibilityVersion = 0;
2588 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) {
2590 if (VT.tryParse(A->getValue()))
2591 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
2593 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 +
2594 VT.getMinor().getValueOr(0) * 100000 +
2595 VT.getSubminor().getValueOr(0);
2598 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs
2599 // is specified, or -std is set to a conforming mode.
2600 // Trigraphs are disabled by default in c++1z onwards.
2601 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17;
2603 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs);
2605 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers,
2606 OPT_fno_dollars_in_identifiers,
2608 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
2609 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags);
2610 Opts.Borland = Args.hasArg(OPT_fborland_extensions);
2611 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings);
2612 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings,
2614 if (Args.hasArg(OPT_fno_lax_vector_conversions))
2615 Opts.LaxVectorConversions = 0;
2616 if (Args.hasArg(OPT_fno_threadsafe_statics))
2617 Opts.ThreadsafeStatics = 0;
2618 Opts.Exceptions = Args.hasArg(OPT_fexceptions);
2619 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions);
2620 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions);
2624 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) &&
2626 Opts.PaddingOnUnsignedFixedPoint =
2627 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point,
2628 OPT_fno_padding_on_unsigned_fixed_point,
2629 /*Default=*/false) &&
2632 // Handle exception personalities
2633 Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions,
2634 options::OPT_fseh_exceptions,
2635 options::OPT_fdwarf_exceptions);
2637 const Option &Opt = A->getOption();
2638 llvm::Triple T(TargetOpts.Triple);
2639 if (T.isWindowsMSVCEnvironment())
2640 Diags.Report(diag::err_fe_invalid_exception_model)
2641 << Opt.getName() << T.str();
2643 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions);
2644 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions);
2645 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions);
2648 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind);
2649 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp);
2651 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti);
2652 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data);
2653 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL
2654 && Opts.OpenCLVersion == 200);
2655 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional);
2656 Opts.Coroutines = Opts.CPlusPlus2a || Args.hasArg(OPT_fcoroutines_ts);
2658 Opts.DoubleSquareBracketAttributes =
2659 Args.hasFlag(OPT_fdouble_square_bracket_attributes,
2660 OPT_fno_double_square_bracket_attributes,
2661 Opts.DoubleSquareBracketAttributes);
2663 Opts.CPlusPlusModules = Opts.CPlusPlus2a;
2664 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts);
2666 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules;
2667 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse);
2668 Opts.ModulesDeclUse =
2669 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse;
2670 // FIXME: We only need this in C++ modules / Modules TS if we might textually
2671 // enter a different module (eg, when building a header unit).
2672 Opts.ModulesLocalVisibility =
2673 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS ||
2674 Opts.CPlusPlusModules;
2675 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen);
2676 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo);
2677 Opts.ModulesSearchAll = Opts.Modules &&
2678 !Args.hasArg(OPT_fno_modules_search_all) &&
2679 Args.hasArg(OPT_fmodules_search_all);
2680 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery);
2681 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules);
2682 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char);
2683 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar);
2684 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus2a);
2685 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) {
2686 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue())
2691 if (Opts.WCharSize == 0)
2692 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue();
2694 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true);
2695 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums);
2696 Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
2697 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
2698 if (!Opts.NoBuiltin)
2699 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs);
2700 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin);
2701 Opts.RelaxedTemplateTemplateArgs =
2702 Args.hasArg(OPT_frelaxed_template_template_args);
2703 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation);
2704 Opts.AlignedAllocation =
2705 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation,
2706 Opts.AlignedAllocation);
2707 Opts.AlignedAllocationUnavailable =
2708 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable);
2709 Opts.NewAlignOverride =
2710 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags);
2711 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) {
2712 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ);
2713 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args)
2715 Opts.NewAlignOverride = 0;
2717 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts);
2718 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions);
2719 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control);
2720 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
2721 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno);
2722 Opts.InstantiationDepth =
2723 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags);
2725 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags);
2726 Opts.ConstexprCallDepth =
2727 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags);
2728 Opts.ConstexprStepLimit =
2729 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags);
2730 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags);
2731 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing);
2732 Opts.NumLargeByValueCopy =
2733 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags);
2734 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields);
2735 Opts.ObjCConstantStringClass =
2736 Args.getLastArgValue(OPT_fconstant_string_class);
2737 Opts.ObjCDefaultSynthProperties =
2738 !Args.hasArg(OPT_disable_objc_default_synthesize_properties);
2739 Opts.EncodeExtendedBlockSig =
2740 Args.hasArg(OPT_fencode_extended_block_signature);
2741 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls);
2742 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags);
2743 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags);
2744 Opts.AlignDouble = Args.hasArg(OPT_malign_double);
2745 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128)
2747 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0;
2748 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble);
2749 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
2750 Opts.ROPI = Args.hasArg(OPT_fropi);
2751 Opts.RWPI = Args.hasArg(OPT_frwpi);
2752 Opts.PIE = Args.hasArg(OPT_pic_is_pie);
2753 Opts.Static = Args.hasArg(OPT_static_define);
2754 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple);
2755 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple
2756 || Args.hasArg(OPT_fdump_record_layouts);
2757 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts);
2758 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking);
2759 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align);
2760 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant);
2761 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math);
2762 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat);
2763 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map);
2764 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype);
2765 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support);
2766 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id);
2767 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal);
2768 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack);
2769 Opts.ModuleName = Args.getLastArgValue(OPT_fmodule_name_EQ);
2770 Opts.CurrentModule = Opts.ModuleName;
2771 Opts.AppExt = Args.hasArg(OPT_fapplication_extension);
2772 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature);
2773 llvm::sort(Opts.ModuleFeatures);
2774 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type);
2775 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns);
2776 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns
2778 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns)
2779 | Opts.NativeHalfArgsAndReturns;
2780 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm);
2781 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions
2783 // __declspec is enabled by default for the PS4 by the driver, and also
2784 // enabled for Microsoft Extensions or Borland Extensions, here.
2786 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a
2787 // CUDA extension. However, it is required for supporting
2788 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has
2789 // been rewritten in terms of something more generic, remove the Opts.CUDA
2791 Opts.DeclSpecKeyword =
2792 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec,
2793 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA));
2795 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) {
2796 switch (llvm::StringSwitch<unsigned>(A->getValue())
2797 .Case("target", LangOptions::ASMM_Target)
2798 .Case("no", LangOptions::ASMM_Off)
2799 .Case("yes", LangOptions::ASMM_On)
2802 Diags.Report(diag::err_drv_invalid_value)
2803 << "-faddress-space-map-mangling=" << A->getValue();
2805 case LangOptions::ASMM_Target:
2806 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target);
2808 case LangOptions::ASMM_On:
2809 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On);
2811 case LangOptions::ASMM_Off:
2812 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off);
2817 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) {
2818 LangOptions::PragmaMSPointersToMembersKind InheritanceModel =
2819 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>(
2822 LangOptions::PPTMK_FullGeneralitySingleInheritance)
2824 LangOptions::PPTMK_FullGeneralityMultipleInheritance)
2826 LangOptions::PPTMK_FullGeneralityVirtualInheritance)
2827 .Default(LangOptions::PPTMK_BestCase);
2828 if (InheritanceModel == LangOptions::PPTMK_BestCase)
2829 Diags.Report(diag::err_drv_invalid_value)
2830 << "-fms-memptr-rep=" << A->getValue();
2832 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel);
2835 // Check for MS default calling conventions being specified.
2836 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) {
2837 LangOptions::DefaultCallingConvention DefaultCC =
2838 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue())
2839 .Case("cdecl", LangOptions::DCC_CDecl)
2840 .Case("fastcall", LangOptions::DCC_FastCall)
2841 .Case("stdcall", LangOptions::DCC_StdCall)
2842 .Case("vectorcall", LangOptions::DCC_VectorCall)
2843 .Case("regcall", LangOptions::DCC_RegCall)
2844 .Default(LangOptions::DCC_None);
2845 if (DefaultCC == LangOptions::DCC_None)
2846 Diags.Report(diag::err_drv_invalid_value)
2847 << "-fdefault-calling-conv=" << A->getValue();
2849 llvm::Triple T(TargetOpts.Triple);
2850 llvm::Triple::ArchType Arch = T.getArch();
2851 bool emitError = (DefaultCC == LangOptions::DCC_FastCall ||
2852 DefaultCC == LangOptions::DCC_StdCall) &&
2853 Arch != llvm::Triple::x86;
2854 emitError |= (DefaultCC == LangOptions::DCC_VectorCall ||
2855 DefaultCC == LangOptions::DCC_RegCall) &&
2856 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64);
2858 Diags.Report(diag::err_drv_argument_not_allowed_with)
2859 << A->getSpelling() << T.getTriple();
2861 Opts.setDefaultCallingConv(DefaultCC);
2865 if (Arg *A = Args.getLastArg(OPT_mrtd)) {
2866 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None)
2867 Diags.Report(diag::err_drv_argument_not_allowed_with)
2868 << A->getSpelling() << "-fdefault-calling-conv";
2870 llvm::Triple T(TargetOpts.Triple);
2871 if (T.getArch() != llvm::Triple::x86)
2872 Diags.Report(diag::err_drv_argument_not_allowed_with)
2873 << A->getSpelling() << T.getTriple();
2875 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall);
2879 // Check if -fopenmp is specified.
2880 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0;
2881 // Check if -fopenmp-simd is specified.
2882 bool IsSimdSpecified =
2883 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd,
2885 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified;
2887 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls);
2888 Opts.OpenMPIsDevice =
2889 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device);
2890 bool IsTargetSpecified =
2891 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ);
2893 if (Opts.OpenMP || Opts.OpenMPSimd) {
2894 if (int Version = getLastArgIntValue(
2895 Args, OPT_fopenmp_version_EQ,
2896 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags))
2897 Opts.OpenMP = Version;
2898 else if (IsSimdSpecified || IsTargetSpecified)
2900 // Provide diagnostic when a given target is not expected to be an OpenMP
2902 if (!Opts.OpenMPIsDevice) {
2903 switch (T.getArch()) {
2906 // Add unsupported host targets here:
2907 case llvm::Triple::nvptx:
2908 case llvm::Triple::nvptx64:
2909 Diags.Report(diag::err_drv_omp_host_target_not_supported)
2910 << TargetOpts.Triple;
2916 // Set the flag to prevent the implementation from emitting device exception
2917 // handling code for those requiring so.
2918 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) {
2919 Opts.Exceptions = 0;
2920 Opts.CXXExceptions = 0;
2922 if (Opts.OpenMPIsDevice && T.isNVPTX()) {
2923 Opts.OpenMPCUDANumSMs =
2924 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ,
2925 Opts.OpenMPCUDANumSMs, Diags);
2926 Opts.OpenMPCUDABlocksPerSM =
2927 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ,
2928 Opts.OpenMPCUDABlocksPerSM, Diags);
2929 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue(
2930 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ,
2931 Opts.OpenMPCUDAReductionBufNum, Diags);
2934 // Prevent auto-widening the representation of loop counters during an
2935 // OpenMP collapse clause.
2936 Opts.OpenMPOptimisticCollapse =
2937 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0;
2939 // Get the OpenMP target triples if any.
2940 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) {
2942 for (unsigned i = 0; i < A->getNumValues(); ++i) {
2943 llvm::Triple TT(A->getValue(i));
2945 if (TT.getArch() == llvm::Triple::UnknownArch ||
2946 !(TT.getArch() == llvm::Triple::ppc ||
2947 TT.getArch() == llvm::Triple::ppc64 ||
2948 TT.getArch() == llvm::Triple::ppc64le ||
2949 TT.getArch() == llvm::Triple::nvptx ||
2950 TT.getArch() == llvm::Triple::nvptx64 ||
2951 TT.getArch() == llvm::Triple::x86 ||
2952 TT.getArch() == llvm::Triple::x86_64))
2953 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i);
2955 Opts.OMPTargetTriples.push_back(TT);
2959 // Get OpenMP host file path if any and report if a non existent file is
2961 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) {
2962 Opts.OMPHostIRFile = A->getValue();
2963 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile))
2964 Diags.Report(diag::err_drv_omp_host_ir_file_not_found)
2965 << Opts.OMPHostIRFile;
2968 Opts.SYCLIsDevice = Args.hasArg(options::OPT_fsycl_is_device);
2970 // Set CUDA mode for OpenMP target NVPTX if specified in options
2971 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() &&
2972 Args.hasArg(options::OPT_fopenmp_cuda_mode);
2974 // Set CUDA mode for OpenMP target NVPTX if specified in options
2975 Opts.OpenMPCUDAForceFullRuntime =
2976 Opts.OpenMPIsDevice && T.isNVPTX() &&
2977 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime);
2979 // Record whether the __DEPRECATED define was requested.
2980 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro,
2981 OPT_fno_deprecated_macro,
2984 // FIXME: Eliminate this dependency.
2985 unsigned Opt = getOptimizationLevel(Args, IK, Diags),
2986 OptSize = getOptimizationLevelSize(Args);
2987 Opts.Optimize = Opt != 0;
2988 Opts.OptimizeSize = OptSize != 0;
2990 // This is the __NO_INLINE__ define, which just depends on things like the
2991 // optimization level and -fno-inline, not actually whether the backend has
2992 // inlining enabled.
2993 Opts.NoInlineDefine = !Opts.Optimize;
2994 if (Arg *InlineArg = Args.getLastArg(
2995 options::OPT_finline_functions, options::OPT_finline_hint_functions,
2996 options::OPT_fno_inline_functions, options::OPT_fno_inline))
2997 if (InlineArg->getOption().matches(options::OPT_fno_inline))
2998 Opts.NoInlineDefine = true;
3000 Opts.FastMath = Args.hasArg(OPT_ffast_math) ||
3001 Args.hasArg(OPT_cl_fast_relaxed_math);
3002 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) ||
3003 Args.hasArg(OPT_cl_finite_math_only) ||
3004 Args.hasArg(OPT_cl_fast_relaxed_math);
3005 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
3006 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
3007 Args.hasArg(OPT_cl_fast_relaxed_math);
3009 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) {
3010 StringRef Val = A->getValue();
3012 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast);
3013 else if (Val == "on")
3014 Opts.setDefaultFPContractMode(LangOptions::FPC_On);
3015 else if (Val == "off")
3016 Opts.setDefaultFPContractMode(LangOptions::FPC_Off);
3018 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
3021 Opts.RetainCommentsFromSystemHeaders =
3022 Args.hasArg(OPT_fretain_comments_from_system_headers);
3024 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags);
3027 Diags.Report(diag::err_drv_invalid_value)
3028 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP;
3030 case 0: Opts.setStackProtector(LangOptions::SSPOff); break;
3031 case 1: Opts.setStackProtector(LangOptions::SSPOn); break;
3032 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break;
3033 case 3: Opts.setStackProtector(LangOptions::SSPReq); break;
3036 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) {
3037 StringRef Val = A->getValue();
3038 if (Val == "uninitialized")
3039 Opts.setTrivialAutoVarInit(
3040 LangOptions::TrivialAutoVarInitKind::Uninitialized);
3041 else if (Val == "zero")
3042 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero);
3043 else if (Val == "pattern")
3044 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern);
3046 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
3049 // Parse -fsanitize= arguments.
3050 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
3051 Diags, Opts.Sanitize);
3052 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here.
3053 Opts.SanitizeAddressFieldPadding =
3054 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags);
3055 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist);
3057 // -fxray-instrument
3058 Opts.XRayInstrument =
3059 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false);
3061 // -fxray-always-emit-customevents
3062 Opts.XRayAlwaysEmitCustomEvents =
3063 Args.hasFlag(OPT_fxray_always_emit_customevents,
3064 OPT_fnoxray_always_emit_customevents, false);
3066 // -fxray-always-emit-typedevents
3067 Opts.XRayAlwaysEmitTypedEvents =
3068 Args.hasFlag(OPT_fxray_always_emit_typedevents,
3069 OPT_fnoxray_always_emit_customevents, false);
3071 // -fxray-{always,never}-instrument= filenames.
3072 Opts.XRayAlwaysInstrumentFiles =
3073 Args.getAllArgValues(OPT_fxray_always_instrument);
3074 Opts.XRayNeverInstrumentFiles =
3075 Args.getAllArgValues(OPT_fxray_never_instrument);
3076 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list);
3078 // -fforce-emit-vtables
3079 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables);
3081 // -fallow-editor-placeholders
3082 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders);
3084 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors);
3086 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) {
3087 Opts.setClangABICompat(LangOptions::ClangABI::Latest);
3089 StringRef Ver = A->getValue();
3090 std::pair<StringRef, StringRef> VerParts = Ver.split('.');
3091 unsigned Major, Minor = 0;
3093 // Check the version number is valid: either 3.x (0 <= x <= 9) or
3094 // y or y.0 (4 <= y <= current version).
3095 if (!VerParts.first.startswith("0") &&
3096 !VerParts.first.getAsInteger(10, Major) &&
3097 3 <= Major && Major <= CLANG_VERSION_MAJOR &&
3098 (Major == 3 ? VerParts.second.size() == 1 &&
3099 !VerParts.second.getAsInteger(10, Minor)
3100 : VerParts.first.size() == Ver.size() ||
3101 VerParts.second == "0")) {
3102 // Got a valid version number.
3103 if (Major == 3 && Minor <= 8)
3104 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8);
3105 else if (Major <= 4)
3106 Opts.setClangABICompat(LangOptions::ClangABI::Ver4);
3107 else if (Major <= 6)
3108 Opts.setClangABICompat(LangOptions::ClangABI::Ver6);
3109 else if (Major <= 7)
3110 Opts.setClangABICompat(LangOptions::ClangABI::Ver7);
3111 } else if (Ver != "latest") {
3112 Diags.Report(diag::err_drv_invalid_value)
3113 << A->getAsString(Args) << A->getValue();
3117 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers);
3118 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj);
3121 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) {
3123 case frontend::ASTDeclList:
3124 case frontend::ASTDump:
3125 case frontend::ASTPrint:
3126 case frontend::ASTView:
3127 case frontend::EmitAssembly:
3128 case frontend::EmitBC:
3129 case frontend::EmitHTML:
3130 case frontend::EmitLLVM:
3131 case frontend::EmitLLVMOnly:
3132 case frontend::EmitCodeGenOnly:
3133 case frontend::EmitObj:
3134 case frontend::FixIt:
3135 case frontend::GenerateModule:
3136 case frontend::GenerateModuleInterface:
3137 case frontend::GenerateHeaderModule:
3138 case frontend::GeneratePCH:
3139 case frontend::GenerateInterfaceYAMLExpV1:
3140 case frontend::GenerateInterfaceTBEExpV1:
3141 case frontend::ParseSyntaxOnly:
3142 case frontend::ModuleFileInfo:
3143 case frontend::VerifyPCH:
3144 case frontend::PluginAction:
3145 case frontend::RewriteObjC:
3146 case frontend::RewriteTest:
3147 case frontend::RunAnalysis:
3148 case frontend::TemplightDump:
3149 case frontend::MigrateSource:
3152 case frontend::DumpCompilerOptions:
3153 case frontend::DumpRawTokens:
3154 case frontend::DumpTokens:
3155 case frontend::InitOnly:
3156 case frontend::PrintPreamble:
3157 case frontend::PrintPreprocessedInput:
3158 case frontend::RewriteMacros:
3159 case frontend::RunPreprocessorOnly:
3160 case frontend::PrintDependencyDirectivesSourceMinimizerOutput:
3163 llvm_unreachable("invalid frontend action");
3166 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
3167 DiagnosticsEngine &Diags,
3168 frontend::ActionKind Action) {
3169 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch);
3170 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) ||
3171 Args.hasArg(OPT_pch_through_hdrstop_use);
3172 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create);
3173 Opts.PCHThroughHeader = Args.getLastArgValue(OPT_pch_through_header_EQ);
3174 Opts.UsePredefines = !Args.hasArg(OPT_undef);
3175 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record);
3176 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch);
3177 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors);
3179 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls);
3180 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl))
3181 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue());
3183 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) {
3184 StringRef Value(A->getValue());
3185 size_t Comma = Value.find(',');
3187 unsigned EndOfLine = 0;
3189 if (Comma == StringRef::npos ||
3190 Value.substr(0, Comma).getAsInteger(10, Bytes) ||
3191 Value.substr(Comma + 1).getAsInteger(10, EndOfLine))
3192 Diags.Report(diag::err_drv_preamble_format);
3194 Opts.PrecompiledPreambleBytes.first = Bytes;
3195 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0);
3199 // Add the __CET__ macro if a CFProtection option is set.
3200 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) {
3201 StringRef Name = A->getValue();
3202 if (Name == "branch")
3203 Opts.addMacroDef("__CET__=1");
3204 else if (Name == "return")
3205 Opts.addMacroDef("__CET__=2");
3206 else if (Name == "full")
3207 Opts.addMacroDef("__CET__=3");
3210 // Add macros from the command line.
3211 for (const auto *A : Args.filtered(OPT_D, OPT_U)) {
3212 if (A->getOption().matches(OPT_D))
3213 Opts.addMacroDef(A->getValue());
3215 Opts.addMacroUndef(A->getValue());
3218 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros);
3220 // Add the ordered list of -includes.
3221 for (const auto *A : Args.filtered(OPT_include))
3222 Opts.Includes.emplace_back(A->getValue());
3224 for (const auto *A : Args.filtered(OPT_chain_include))
3225 Opts.ChainedIncludes.emplace_back(A->getValue());
3227 for (const auto *A : Args.filtered(OPT_remap_file)) {
3228 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';');
3230 if (Split.second.empty()) {
3231 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args);
3235 Opts.addRemappedFile(Split.first, Split.second);
3238 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) {
3239 StringRef Name = A->getValue();
3240 unsigned Library = llvm::StringSwitch<unsigned>(Name)
3241 .Case("libc++", ARCXX_libcxx)
3242 .Case("libstdc++", ARCXX_libstdcxx)
3243 .Case("none", ARCXX_nolib)
3246 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
3248 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library;
3251 // Always avoid lexing editor placeholders when we're just running the
3252 // preprocessor as we never want to emit the
3253 // "editor placeholder in source file" error in PP only mode.
3254 if (isStrictlyPreprocessorAction(Action))
3255 Opts.LexEditorPlaceholders = false;
3258 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
3260 frontend::ActionKind Action) {
3261 if (isStrictlyPreprocessorAction(Action))
3262 Opts.ShowCPP = !Args.hasArg(OPT_dM);
3266 Opts.ShowComments = Args.hasArg(OPT_C);
3267 Opts.ShowLineMarkers = !Args.hasArg(OPT_P);
3268 Opts.ShowMacroComments = Args.hasArg(OPT_CC);
3269 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD);
3270 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI);
3271 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes);
3272 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports);
3273 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives);
3276 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args,
3277 DiagnosticsEngine &Diags) {
3278 Opts.CodeModel = getCodeModel(Args, Diags);
3279 Opts.ABI = Args.getLastArgValue(OPT_target_abi);
3280 if (Arg *A = Args.getLastArg(OPT_meabi)) {
3281 StringRef Value = A->getValue();
3282 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value)
3283 .Case("default", llvm::EABI::Default)
3284 .Case("4", llvm::EABI::EABI4)
3285 .Case("5", llvm::EABI::EABI5)
3286 .Case("gnu", llvm::EABI::GNU)
3287 .Default(llvm::EABI::Unknown);
3288 if (EABIVersion == llvm::EABI::Unknown)
3289 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
3292 Opts.EABIVersion = EABIVersion;
3294 Opts.CPU = Args.getLastArgValue(OPT_target_cpu);
3295 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath);
3296 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature);
3297 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version);
3298 Opts.Triple = Args.getLastArgValue(OPT_triple);
3299 // Use the default target triple if unspecified.
3300 if (Opts.Triple.empty())
3301 Opts.Triple = llvm::sys::getDefaultTargetTriple();
3302 Opts.Triple = llvm::Triple::normalize(Opts.Triple);
3303 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ);
3304 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128);
3305 Opts.NVPTXUseShortPointers = Args.hasFlag(
3306 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false);
3307 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) {
3308 llvm::VersionTuple Version;
3309 if (Version.tryParse(A->getValue()))
3310 Diags.Report(diag::err_drv_invalid_value)
3311 << A->getAsString(Args) << A->getValue();
3313 Opts.SDKVersion = Version;
3317 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
3318 const char *const *ArgBegin,
3319 const char *const *ArgEnd,
3320 DiagnosticsEngine &Diags) {
3321 bool Success = true;
3323 // Parse the arguments.
3324 std::unique_ptr<OptTable> Opts = createDriverOptTable();
3325 const unsigned IncludedFlagsBitmask = options::CC1Option;
3326 unsigned MissingArgIndex, MissingArgCount;
3328 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex,
3329 MissingArgCount, IncludedFlagsBitmask);
3330 LangOptions &LangOpts = *Res.getLangOpts();
3332 // Check for missing argument error.
3333 if (MissingArgCount) {
3334 Diags.Report(diag::err_drv_missing_argument)
3335 << Args.getArgString(MissingArgIndex) << MissingArgCount;
3339 // Issue errors on unknown arguments.
3340 for (const auto *A : Args.filtered(OPT_UNKNOWN)) {
3341 auto ArgString = A->getAsString(Args);
3342 std::string Nearest;
3343 if (Opts->findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1)
3344 Diags.Report(diag::err_drv_unknown_argument) << ArgString;
3346 Diags.Report(diag::err_drv_unknown_argument_with_suggestion)
3347 << ArgString << Nearest;
3351 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags);
3352 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args);
3353 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args);
3355 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags,
3356 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/);
3357 ParseCommentArgs(LangOpts.CommentOpts, Args);
3358 ParseFileSystemArgs(Res.getFileSystemOpts(), Args);
3359 // FIXME: We shouldn't have to pass the DashX option around here
3360 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags,
3361 LangOpts.IsHeaderFile);
3362 ParseTargetArgs(Res.getTargetOpts(), Args, Diags);
3363 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags,
3364 Res.getTargetOpts(), Res.getFrontendOpts());
3365 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args,
3366 Res.getFileSystemOpts().WorkingDir);
3367 llvm::Triple T(Res.getTargetOpts().Triple);
3368 if (DashX.getFormat() == InputKind::Precompiled ||
3369 DashX.getLanguage() == InputKind::LLVM_IR) {
3370 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the
3371 // PassManager in BackendUtil.cpp. They need to be initializd no matter
3372 // what the input type is.
3373 if (Args.hasArg(OPT_fobjc_arc))
3374 LangOpts.ObjCAutoRefCount = 1;
3375 // PIClevel and PIELevel are needed during code generation and this should be
3376 // set regardless of the input type.
3377 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
3378 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie);
3379 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
3380 Diags, LangOpts.Sanitize);
3382 // Other LangOpts are only initialized when the input is not AST or LLVM IR.
3383 // FIXME: Should we really be calling this for an InputKind::Asm input?
3384 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(),
3385 Res.getPreprocessorOpts(), Diags);
3386 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
3387 LangOpts.ObjCExceptions = 1;
3388 if (T.isOSDarwin() && DashX.isPreprocessed()) {
3389 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for
3390 // preprocessed input as we don't expect it to be used with -std=libc++
3392 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found");
3396 LangOpts.FunctionAlignment =
3397 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags);
3399 if (LangOpts.CUDA) {
3400 // During CUDA device-side compilation, the aux triple is the
3401 // triple used for host compilation.
3402 if (LangOpts.CUDAIsDevice)
3403 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
3406 // Set the triple of the host for OpenMP device compile.
3407 if (LangOpts.OpenMPIsDevice)
3408 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
3410 // FIXME: Override value name discarding when asan or msan is used because the
3411 // backend passes depend on the name of the alloca in order to print out
3413 Res.getCodeGenOpts().DiscardValueNames &=
3414 !LangOpts.Sanitize.has(SanitizerKind::Address) &&
3415 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) &&
3416 !LangOpts.Sanitize.has(SanitizerKind::Memory) &&
3417 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory);
3419 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags,
3420 Res.getFrontendOpts().ProgramAction);
3421 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args,
3422 Res.getFrontendOpts().ProgramAction);
3424 // Turn on -Wspir-compat for SPIR target.
3426 Res.getDiagnosticOpts().Warnings.push_back("spir-compat");
3428 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses.
3429 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses &&
3430 !Res.getLangOpts()->Sanitize.empty()) {
3431 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false;
3432 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored);
3437 std::string CompilerInvocation::getModuleHash() const {
3438 // Note: For QoI reasons, the things we use as a hash here should all be
3439 // dumped via the -module-info flag.
3440 using llvm::hash_code;
3441 using llvm::hash_value;
3442 using llvm::hash_combine;
3444 // Start the signature with the compiler version.
3445 // FIXME: We'd rather use something more cryptographically sound than
3446 // CityHash, but this will do for now.
3447 hash_code code = hash_value(getClangFullRepositoryVersion());
3449 // Extend the signature with the language options
3450 #define LANGOPT(Name, Bits, Default, Description) \
3451 code = hash_combine(code, LangOpts->Name);
3452 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
3453 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name()));
3454 #define BENIGN_LANGOPT(Name, Bits, Default, Description)
3455 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
3456 #include "clang/Basic/LangOptions.def"
3458 for (StringRef Feature : LangOpts->ModuleFeatures)
3459 code = hash_combine(code, Feature);
3461 // Extend the signature with the target options.
3462 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU,
3464 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten)
3465 code = hash_combine(code, FeatureAsWritten);
3467 // Extend the signature with preprocessor options.
3468 const PreprocessorOptions &ppOpts = getPreprocessorOpts();
3469 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts();
3470 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord);
3472 for (const auto &I : getPreprocessorOpts().Macros) {
3473 // If we're supposed to ignore this macro for the purposes of modules,
3474 // don't put it into the hash.
3475 if (!hsOpts.ModulesIgnoreMacros.empty()) {
3476 // Check whether we're ignoring this macro.
3477 StringRef MacroDef = I.first;
3478 if (hsOpts.ModulesIgnoreMacros.count(
3479 llvm::CachedHashString(MacroDef.split('=').first)))
3483 code = hash_combine(code, I.first, I.second);
3486 // Extend the signature with the sysroot and other header search options.
3487 code = hash_combine(code, hsOpts.Sysroot,
3488 hsOpts.ModuleFormat,
3489 hsOpts.UseDebugInfo,
3490 hsOpts.UseBuiltinIncludes,
3491 hsOpts.UseStandardSystemIncludes,
3492 hsOpts.UseStandardCXXIncludes,
3494 hsOpts.ModulesValidateDiagnosticOptions);
3495 code = hash_combine(code, hsOpts.ResourceDir);
3497 // Extend the signature with the user build path.
3498 code = hash_combine(code, hsOpts.ModuleUserBuildPath);
3500 // Extend the signature with the module file extensions.
3501 const FrontendOptions &frontendOpts = getFrontendOpts();
3502 for (const auto &ext : frontendOpts.ModuleFileExtensions) {
3503 code = ext->hashExtension(code);
3506 // When compiling with -gmodules, also hash -fdebug-prefix-map as it
3507 // affects the debug info in the PCM.
3508 if (getCodeGenOpts().DebugTypeExtRefs)
3509 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap)
3510 code = hash_combine(code, KeyValue.first, KeyValue.second);
3512 // Extend the signature with the enabled sanitizers, if at least one is
3513 // enabled. Sanitizers which cannot affect AST generation aren't hashed.
3514 SanitizerSet SanHash = LangOpts->Sanitize;
3515 SanHash.clear(getPPTransparentSanitizers());
3516 if (!SanHash.empty())
3517 code = hash_combine(code, SanHash.Mask);
3519 return llvm::APInt(64, code).toString(36, /*Signed=*/false);
3522 template<typename IntTy>
3523 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id,
3525 DiagnosticsEngine *Diags) {
3526 IntTy Res = Default;
3527 if (Arg *A = Args.getLastArg(Id)) {
3528 if (StringRef(A->getValue()).getAsInteger(10, Res)) {
3530 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args)
3539 // Declared in clang/Frontend/Utils.h.
3540 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default,
3541 DiagnosticsEngine *Diags) {
3542 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags);
3545 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id,
3547 DiagnosticsEngine *Diags) {
3548 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags);
3551 IntrusiveRefCntPtr<llvm::vfs::FileSystem>
3552 createVFSFromCompilerInvocation(const CompilerInvocation &CI,
3553 DiagnosticsEngine &Diags) {
3554 return createVFSFromCompilerInvocation(CI, Diags,
3555 llvm::vfs::getRealFileSystem());
3558 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation(
3559 const CompilerInvocation &CI, DiagnosticsEngine &Diags,
3560 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) {
3561 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty())
3564 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS;
3565 // earlier vfs files are on the bottom
3566 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) {
3567 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer =
3568 Result->getBufferForFile(File);
3570 Diags.Report(diag::err_missing_vfs_overlay_file) << File;
3574 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML(
3575 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File,
3576 /*DiagContext*/ nullptr, Result);
3578 Diags.Report(diag::err_invalid_vfs_overlay) << File;
3587 } // namespace clang