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/LangStandard.h"
22 #include "clang/Basic/ObjCRuntime.h"
23 #include "clang/Basic/Sanitizers.h"
24 #include "clang/Basic/SourceLocation.h"
25 #include "clang/Basic/TargetOptions.h"
26 #include "clang/Basic/Version.h"
27 #include "clang/Basic/Visibility.h"
28 #include "clang/Basic/XRayInstr.h"
29 #include "clang/Config/config.h"
30 #include "clang/Driver/Driver.h"
31 #include "clang/Driver/DriverDiagnostic.h"
32 #include "clang/Driver/Options.h"
33 #include "clang/Frontend/CommandLineSourceLoc.h"
34 #include "clang/Frontend/DependencyOutputOptions.h"
35 #include "clang/Frontend/FrontendDiagnostic.h"
36 #include "clang/Frontend/FrontendOptions.h"
37 #include "clang/Frontend/FrontendPluginRegistry.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() == Language::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.DisableAllCheckers = 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.CheckersAndPackages.clear();
329 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) {
331 bool IsEnabled = 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 CheckerAndPackageList = A->getValue();
335 SmallVector<StringRef, 16> CheckersAndPackages;
336 CheckerAndPackageList.split(CheckersAndPackages, ",");
337 for (const StringRef CheckerOrPackage : CheckersAndPackages)
338 Opts.CheckersAndPackages.emplace_back(CheckerOrPackage, IsEnabled);
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.
467 // FIXME: Here we try to validate the silenced checkers or packages are valid.
468 // The current approach only validates the registered checkers which does not
469 // contain the runtime enabled checkers and optimally we would validate both.
470 if (!AnOpts.RawSilencedCheckersAndPackages.empty()) {
471 std::vector<StringRef> Checkers =
472 AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true);
473 std::vector<StringRef> Packages =
474 AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true);
476 SmallVector<StringRef, 16> CheckersAndPackages;
477 AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";");
479 for (const StringRef CheckerOrPackage : CheckersAndPackages) {
481 bool IsChecker = CheckerOrPackage.contains('.');
484 ? llvm::find(Checkers, CheckerOrPackage) != Checkers.end()
485 : llvm::find(Packages, CheckerOrPackage) != Packages.end();
488 Diags->Report(diag::err_unknown_analyzer_checker_or_package)
492 AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage);
499 if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions)
500 Diags->Report(diag::err_analyzer_config_invalid_input)
501 << "track-conditions-debug" << "'track-conditions' to also be enabled";
503 if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir))
504 Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir"
507 if (!AnOpts.ModelPath.empty() &&
508 !llvm::sys::fs::is_directory(AnOpts.ModelPath))
509 Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path"
513 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) {
514 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error);
515 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal);
519 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) {
520 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands);
521 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments);
524 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) {
525 if (Arg *A = Args.getLastArg(OPT_mcode_model)) {
526 StringRef Value = A->getValue();
527 if (Value == "small" || Value == "kernel" || Value == "medium" ||
528 Value == "large" || Value == "tiny")
530 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value;
535 static llvm::Reloc::Model getRelocModel(ArgList &Args,
536 DiagnosticsEngine &Diags) {
537 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) {
538 StringRef Value = A->getValue();
539 auto RM = llvm::StringSwitch<llvm::Optional<llvm::Reloc::Model>>(Value)
540 .Case("static", llvm::Reloc::Static)
541 .Case("pic", llvm::Reloc::PIC_)
542 .Case("ropi", llvm::Reloc::ROPI)
543 .Case("rwpi", llvm::Reloc::RWPI)
544 .Case("ropi-rwpi", llvm::Reloc::ROPI_RWPI)
545 .Case("dynamic-no-pic", llvm::Reloc::DynamicNoPIC)
549 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value;
551 return llvm::Reloc::PIC_;
554 /// Create a new Regex instance out of the string value in \p RpassArg.
555 /// It returns a pointer to the newly generated Regex instance.
556 static std::shared_ptr<llvm::Regex>
557 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args,
559 StringRef Val = RpassArg->getValue();
560 std::string RegexError;
561 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val);
562 if (!Pattern->isValid(RegexError)) {
563 Diags.Report(diag::err_drv_optimization_remark_pattern)
564 << RegexError << RpassArg->getAsString(Args);
570 static bool parseDiagnosticLevelMask(StringRef FlagName,
571 const std::vector<std::string> &Levels,
572 DiagnosticsEngine *Diags,
573 DiagnosticLevelMask &M) {
575 for (const auto &Level : Levels) {
576 DiagnosticLevelMask const PM =
577 llvm::StringSwitch<DiagnosticLevelMask>(Level)
578 .Case("note", DiagnosticLevelMask::Note)
579 .Case("remark", DiagnosticLevelMask::Remark)
580 .Case("warning", DiagnosticLevelMask::Warning)
581 .Case("error", DiagnosticLevelMask::Error)
582 .Default(DiagnosticLevelMask::None);
583 if (PM == DiagnosticLevelMask::None) {
586 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level;
593 static void parseSanitizerKinds(StringRef FlagName,
594 const std::vector<std::string> &Sanitizers,
595 DiagnosticsEngine &Diags, SanitizerSet &S) {
596 for (const auto &Sanitizer : Sanitizers) {
597 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false);
598 if (K == SanitizerMask())
599 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer;
605 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle,
606 ArgList &Args, DiagnosticsEngine &D,
608 llvm::SmallVector<StringRef, 2> BundleParts;
609 llvm::SplitString(Bundle, BundleParts, ",");
610 for (const auto B : BundleParts) {
611 auto Mask = parseXRayInstrValue(B);
612 if (Mask == XRayInstrKind::None)
614 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle;
617 else if (Mask == XRayInstrKind::All)
624 // Set the profile kind for fprofile-instrument.
625 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args,
626 DiagnosticsEngine &Diags) {
627 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ);
630 StringRef S = A->getValue();
631 unsigned I = llvm::StringSwitch<unsigned>(S)
632 .Case("none", CodeGenOptions::ProfileNone)
633 .Case("clang", CodeGenOptions::ProfileClangInstr)
634 .Case("llvm", CodeGenOptions::ProfileIRInstr)
635 .Case("csllvm", CodeGenOptions::ProfileCSIRInstr)
638 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args)
642 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I);
643 Opts.setProfileInstr(Instrumentor);
646 // Set the profile kind using fprofile-instrument-use-path.
647 static void setPGOUseInstrumentor(CodeGenOptions &Opts,
648 const Twine &ProfileName) {
649 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName);
650 // In error, return silently and let Clang PGOUse report the error message.
651 if (auto E = ReaderOrErr.takeError()) {
652 llvm::consumeError(std::move(E));
653 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr);
656 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader =
657 std::move(ReaderOrErr.get());
658 if (PGOReader->isIRLevelProfile()) {
659 if (PGOReader->hasCSIRLevelProfile())
660 Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr);
662 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr);
664 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr);
667 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
668 DiagnosticsEngine &Diags,
669 const TargetOptions &TargetOpts,
670 const FrontendOptions &FrontendOpts) {
672 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple);
674 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags);
675 // TODO: This could be done in Driver
676 unsigned MaxOptLevel = 3;
677 if (OptimizationLevel > MaxOptLevel) {
678 // If the optimization level is not supported, fall back on the default
680 Diags.Report(diag::warn_drv_optimization_value)
681 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel;
682 OptimizationLevel = MaxOptLevel;
684 Opts.OptimizationLevel = OptimizationLevel;
686 // At O0 we want to fully disable inlining outside of cases marked with
687 // 'alwaysinline' that are required for correctness.
688 Opts.setInlining((Opts.OptimizationLevel == 0)
689 ? CodeGenOptions::OnlyAlwaysInlining
690 : CodeGenOptions::NormalInlining);
691 // Explicit inlining flags can disable some or all inlining even at
692 // optimization levels above zero.
693 if (Arg *InlineArg = Args.getLastArg(
694 options::OPT_finline_functions, options::OPT_finline_hint_functions,
695 options::OPT_fno_inline_functions, options::OPT_fno_inline)) {
696 if (Opts.OptimizationLevel > 0) {
697 const Option &InlineOpt = InlineArg->getOption();
698 if (InlineOpt.matches(options::OPT_finline_functions))
699 Opts.setInlining(CodeGenOptions::NormalInlining);
700 else if (InlineOpt.matches(options::OPT_finline_hint_functions))
701 Opts.setInlining(CodeGenOptions::OnlyHintInlining);
703 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining);
707 Opts.ExperimentalNewPassManager = Args.hasFlag(
708 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager,
709 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER);
711 Opts.DebugPassManager =
712 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager,
713 /* Default */ false);
715 if (Arg *A = Args.getLastArg(OPT_fveclib)) {
716 StringRef Name = A->getValue();
717 if (Name == "Accelerate")
718 Opts.setVecLib(CodeGenOptions::Accelerate);
719 else if (Name == "MASSV")
720 Opts.setVecLib(CodeGenOptions::MASSV);
721 else if (Name == "SVML")
722 Opts.setVecLib(CodeGenOptions::SVML);
723 else if (Name == "none")
724 Opts.setVecLib(CodeGenOptions::NoLibrary);
726 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
729 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) {
731 llvm::StringSwitch<unsigned>(A->getValue())
732 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly)
733 .Case("line-directives-only", codegenoptions::DebugDirectivesOnly)
734 .Case("limited", codegenoptions::LimitedDebugInfo)
735 .Case("standalone", codegenoptions::FullDebugInfo)
738 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
741 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val));
743 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) {
744 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue())
745 .Case("gdb", unsigned(llvm::DebuggerKind::GDB))
746 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB))
747 .Case("sce", unsigned(llvm::DebuggerKind::SCE))
750 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
753 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val));
755 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags);
756 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info);
757 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview);
758 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash);
759 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro);
760 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables);
761 Opts.VirtualFunctionElimination =
762 Args.hasArg(OPT_fvirtual_function_elimination);
763 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std);
764 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file);
765 Opts.SplitDwarfOutput = Args.getLastArgValue(OPT_split_dwarf_output);
766 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining);
767 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs);
768 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import);
769 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params);
770 Opts.EmbedSource = Args.hasArg(OPT_gembed_source);
772 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ))
773 Opts.DebugPrefixMap.insert(StringRef(Arg).split('='));
776 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists))
777 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists;
779 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes);
780 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers);
782 const llvm::Triple::ArchType DebugEntryValueArchs[] = {
783 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64,
784 llvm::Triple::arm, llvm::Triple::armeb};
786 llvm::Triple T(TargetOpts.Triple);
787 if (Opts.OptimizationLevel > 0 &&
788 Opts.getDebugInfo() >= codegenoptions::LimitedDebugInfo &&
789 llvm::is_contained(DebugEntryValueArchs, T.getArch()))
790 Opts.EnableDebugEntryValues = Args.hasArg(OPT_femit_debug_entry_values);
792 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone);
793 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
794 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs);
795 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables);
796 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg(
797 OPT_fuse_register_sized_bitfield_access);
798 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing);
799 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa);
800 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) &&
801 Args.hasArg(OPT_new_struct_path_tbaa);
802 Opts.FineGrainedBitfieldAccesses =
803 Args.hasFlag(OPT_ffine_grained_bitfield_accesses,
804 OPT_fno_fine_grained_bitfield_accesses, false);
805 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags);
806 Opts.RecordCommandLine = Args.getLastArgValue(OPT_record_command_line);
807 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants);
808 Opts.NoCommon = Args.hasArg(OPT_fno_common);
809 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float);
810 Opts.OptimizeSize = getOptimizationLevelSize(Args);
811 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) ||
812 Args.hasArg(OPT_ffreestanding));
813 if (Opts.SimplifyLibCalls)
814 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs);
816 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops,
817 (Opts.OptimizationLevel > 1));
818 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops);
820 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as);
821 Opts.Autolink = !Args.hasArg(OPT_fno_autolink);
822 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ);
823 Opts.DebugInfoForProfiling = Args.hasFlag(
824 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false);
825 Opts.DebugNameTable = static_cast<unsigned>(
826 Args.hasArg(OPT_ggnu_pubnames)
827 ? llvm::DICompileUnit::DebugNameTableKind::GNU
828 : Args.hasArg(OPT_gpubnames)
829 ? llvm::DICompileUnit::DebugNameTableKind::Default
830 : llvm::DICompileUnit::DebugNameTableKind::None);
831 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address);
833 setPGOInstrumentor(Opts, Args, Diags);
834 Opts.InstrProfileOutput =
835 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ);
836 Opts.ProfileInstrumentUsePath =
837 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ);
838 if (!Opts.ProfileInstrumentUsePath.empty())
839 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath);
840 Opts.ProfileRemappingFile =
841 Args.getLastArgValue(OPT_fprofile_remapping_file_EQ);
842 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) {
843 Diags.Report(diag::err_drv_argument_only_allowed_with)
844 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args)
845 << "-fexperimental-new-pass-manager";
848 Opts.CoverageMapping =
849 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false);
850 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping);
851 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose);
852 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments);
853 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
854 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions);
855 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit);
856 Opts.RegisterGlobalDtorsWithAtExit =
857 Args.hasArg(OPT_fregister_global_dtors_with_atexit);
858 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases);
859 Opts.CodeModel = TargetOpts.CodeModel;
860 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass);
862 // Handle -mframe-pointer option.
863 if (Arg *A = Args.getLastArg(OPT_mframe_pointer_EQ)) {
864 CodeGenOptions::FramePointerKind FP;
865 StringRef Name = A->getValue();
868 FP = CodeGenOptions::FramePointerKind::None;
869 else if (Name == "non-leaf")
870 FP = CodeGenOptions::FramePointerKind::NonLeaf;
871 else if (Name == "all")
872 FP = CodeGenOptions::FramePointerKind::All;
874 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
879 Opts.setFramePointer(FP);
882 // -pg may override -mframe-pointer
883 // TODO: This should be merged into getFramePointerKind in Clang.cpp.
884 if (Args.hasArg(OPT_pg))
885 Opts.setFramePointer(CodeGenOptions::FramePointerKind::All);
887 Opts.DisableFree = Args.hasArg(OPT_disable_free);
888 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names);
889 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls);
890 Opts.NoEscapingBlockTailCalls =
891 Args.hasArg(OPT_fno_escaping_block_tail_calls);
892 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi);
893 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) ||
894 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
895 Args.hasArg(OPT_cl_fast_relaxed_math);
896 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision);
897 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) ||
898 Args.hasArg(OPT_cl_finite_math_only) ||
899 Args.hasArg(OPT_cl_fast_relaxed_math));
900 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) ||
901 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
902 Args.hasArg(OPT_cl_finite_math_only) ||
903 Args.hasArg(OPT_cl_fast_relaxed_math));
904 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) ||
905 Args.hasArg(OPT_cl_no_signed_zeros) ||
906 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
907 Args.hasArg(OPT_cl_fast_relaxed_math));
908 Opts.Reassociate = Args.hasArg(OPT_mreassociate);
909 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero) ||
910 (Args.hasArg(OPT_fcuda_is_device) &&
911 Args.hasArg(OPT_fcuda_flush_denormals_to_zero));
912 Opts.CorrectlyRoundedDivSqrt =
913 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt);
915 Args.hasArg(OPT_cl_uniform_work_group_size);
916 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ);
917 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math);
918 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math);
919 Opts.StrictFloatCastOverflow =
920 !Args.hasArg(OPT_fno_strict_float_cast_overflow);
922 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
923 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags);
924 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack);
925 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings);
926 Opts.NoWarn = Args.hasArg(OPT_massembler_no_warn);
927 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks);
928 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
929 Opts.IncrementalLinkerCompatible =
930 Args.hasArg(OPT_mincremental_linker_compatible);
931 Opts.PIECopyRelocations =
932 Args.hasArg(OPT_mpie_copy_relocations);
933 Opts.NoPLT = Args.hasArg(OPT_fno_plt);
934 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels);
935 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm);
936 Opts.SoftFloat = Args.hasArg(OPT_msoft_float);
937 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums);
938 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return);
939 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers);
940 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables);
941 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
942 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
943 Args.hasArg(OPT_cl_fast_relaxed_math);
944 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
945 Opts.RelocationModel = getRelocModel(Args, Diags);
946 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix");
947 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single")
948 Diags.Report(diag::err_drv_invalid_value)
949 << Args.getLastArg(OPT_mthread_model)->getAsString(Args)
951 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ);
952 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array);
954 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections,
955 OPT_fno_function_sections, false);
956 Opts.DataSections = Args.hasFlag(OPT_fdata_sections,
957 OPT_fno_data_sections, false);
958 Opts.StackSizeSection =
959 Args.hasFlag(OPT_fstack_size_section, OPT_fno_stack_size_section, false);
960 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names,
961 OPT_fno_unique_section_names, true);
963 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions);
965 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables);
967 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks);
969 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate);
971 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ);
972 Opts.PrepareForThinLTO = false;
973 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) {
974 StringRef S = A->getValue();
976 Opts.PrepareForThinLTO = true;
977 else if (S != "full")
978 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S;
980 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false);
981 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit);
982 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) {
983 if (IK.getLanguage() != Language::LLVM_IR)
984 Diags.Report(diag::err_drv_argument_only_allowed_with)
985 << A->getAsString(Args) << "-x ir";
986 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ);
988 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ))
989 Opts.SaveTempsFilePrefix =
990 llvm::StringSwitch<std::string>(A->getValue())
991 .Case("obj", FrontendOpts.OutputFile)
992 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str());
994 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ);
996 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile);
998 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops);
999 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp);
1001 Opts.PreferVectorWidth = Args.getLastArgValue(OPT_mprefer_vector_width_EQ);
1003 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name);
1004 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier);
1006 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard);
1008 Opts.DisableGCov = Args.hasArg(OPT_test_coverage);
1009 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data);
1010 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes);
1011 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) {
1012 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file);
1013 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file);
1014 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum);
1015 Opts.CoverageNoFunctionNamesInData =
1016 Args.hasArg(OPT_coverage_no_function_names_in_data);
1017 Opts.ProfileFilterFiles =
1018 Args.getLastArgValue(OPT_fprofile_filter_files_EQ);
1019 Opts.ProfileExcludeFiles =
1020 Args.getLastArgValue(OPT_fprofile_exclude_files_EQ);
1021 Opts.CoverageExitBlockBeforeBody =
1022 Args.hasArg(OPT_coverage_exit_block_before_body);
1023 if (Args.hasArg(OPT_coverage_version_EQ)) {
1024 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ);
1025 if (CoverageVersion.size() != 4) {
1026 Diags.Report(diag::err_drv_invalid_value)
1027 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args)
1030 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4);
1034 // Handle -fembed-bitcode option.
1035 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) {
1036 StringRef Name = A->getValue();
1037 unsigned Model = llvm::StringSwitch<unsigned>(Name)
1038 .Case("off", CodeGenOptions::Embed_Off)
1039 .Case("all", CodeGenOptions::Embed_All)
1040 .Case("bitcode", CodeGenOptions::Embed_Bitcode)
1041 .Case("marker", CodeGenOptions::Embed_Marker)
1044 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
1047 Opts.setEmbedBitcode(
1048 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model));
1050 // FIXME: For backend options that are not yet recorded as function
1051 // attributes in the IR, keep track of them so we can embed them in a
1052 // separate data section and use them when building the bitcode.
1053 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) {
1054 for (const auto &A : Args) {
1055 // Do not encode output and input.
1056 if (A->getOption().getID() == options::OPT_o ||
1057 A->getOption().getID() == options::OPT_INPUT ||
1058 A->getOption().getID() == options::OPT_x ||
1059 A->getOption().getID() == options::OPT_fembed_bitcode ||
1060 (A->getOption().getGroup().isValid() &&
1061 A->getOption().getGroup().getID() == options::OPT_W_Group))
1064 A->render(Args, ASL);
1065 for (const auto &arg : ASL) {
1066 StringRef ArgStr(arg);
1067 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end());
1068 // using \00 to separate each commandline options.
1069 Opts.CmdArgs.push_back('\0');
1074 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type);
1075 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions);
1076 Opts.InstrumentFunctionsAfterInlining =
1077 Args.hasArg(OPT_finstrument_functions_after_inlining);
1078 Opts.InstrumentFunctionEntryBare =
1079 Args.hasArg(OPT_finstrument_function_entry_bare);
1081 Opts.XRayInstrumentFunctions =
1082 Args.hasArg(OPT_fxray_instrument);
1083 Opts.XRayAlwaysEmitCustomEvents =
1084 Args.hasArg(OPT_fxray_always_emit_customevents);
1085 Opts.XRayAlwaysEmitTypedEvents =
1086 Args.hasArg(OPT_fxray_always_emit_typedevents);
1087 Opts.XRayInstructionThreshold =
1088 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags);
1090 auto XRayInstrBundles =
1091 Args.getAllArgValues(OPT_fxray_instrumentation_bundle);
1092 if (XRayInstrBundles.empty())
1093 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All;
1095 for (const auto &A : XRayInstrBundles)
1096 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args,
1097 Diags, Opts.XRayInstrumentationBundle);
1099 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg);
1100 Opts.CallFEntry = Args.hasArg(OPT_mfentry);
1101 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info);
1103 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) {
1104 StringRef Name = A->getValue();
1105 if (Name == "full") {
1106 Opts.CFProtectionReturn = 1;
1107 Opts.CFProtectionBranch = 1;
1108 } else if (Name == "return")
1109 Opts.CFProtectionReturn = 1;
1110 else if (Name == "branch")
1111 Opts.CFProtectionBranch = 1;
1112 else if (Name != "none") {
1113 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
1118 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections,
1119 OPT_compress_debug_sections_EQ)) {
1120 if (A->getOption().getID() == OPT_compress_debug_sections) {
1121 // TODO: be more clever about the compression type auto-detection
1122 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU);
1124 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue())
1125 .Case("none", llvm::DebugCompressionType::None)
1126 .Case("zlib", llvm::DebugCompressionType::Z)
1127 .Case("zlib-gnu", llvm::DebugCompressionType::GNU)
1128 .Default(llvm::DebugCompressionType::None);
1129 Opts.setCompressDebugSections(DCT);
1133 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations);
1134 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir);
1136 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) {
1137 CodeGenOptions::BitcodeFileToLink F;
1138 F.Filename = A->getValue();
1139 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) {
1140 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded;
1141 // When linking CUDA bitcode, propagate function attributes so that
1142 // e.g. libdevice gets fast-math attrs if we're building with fast-math.
1143 F.PropagateAttrs = true;
1144 F.Internalize = true;
1146 Opts.LinkBitcodeFiles.push_back(F);
1148 Opts.SanitizeCoverageType =
1149 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags);
1150 Opts.SanitizeCoverageIndirectCalls =
1151 Args.hasArg(OPT_fsanitize_coverage_indirect_calls);
1152 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb);
1153 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp);
1154 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div);
1155 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep);
1156 Opts.SanitizeCoverage8bitCounters =
1157 Args.hasArg(OPT_fsanitize_coverage_8bit_counters);
1158 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc);
1159 Opts.SanitizeCoverageTracePCGuard =
1160 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard);
1161 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune);
1162 Opts.SanitizeCoverageInline8bitCounters =
1163 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters);
1164 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table);
1165 Opts.SanitizeCoverageStackDepth =
1166 Args.hasArg(OPT_fsanitize_coverage_stack_depth);
1167 Opts.SanitizeMemoryTrackOrigins =
1168 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags);
1169 Opts.SanitizeMemoryUseAfterDtor =
1170 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor,
1171 OPT_fno_sanitize_memory_use_after_dtor,
1173 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime);
1174 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso);
1175 Opts.SanitizeCfiICallGeneralizePointers =
1176 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers);
1177 Opts.SanitizeCfiCanonicalJumpTables =
1178 Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables);
1179 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats);
1180 if (Arg *A = Args.getLastArg(
1181 OPT_fsanitize_address_poison_custom_array_cookie,
1182 OPT_fno_sanitize_address_poison_custom_array_cookie)) {
1183 Opts.SanitizeAddressPoisonCustomArrayCookie =
1184 A->getOption().getID() ==
1185 OPT_fsanitize_address_poison_custom_array_cookie;
1187 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope,
1188 OPT_fno_sanitize_address_use_after_scope)) {
1189 Opts.SanitizeAddressUseAfterScope =
1190 A->getOption().getID() == OPT_fsanitize_address_use_after_scope;
1192 Opts.SanitizeAddressGlobalsDeadStripping =
1193 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping);
1194 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator,
1195 OPT_fno_sanitize_address_use_odr_indicator)) {
1196 Opts.SanitizeAddressUseOdrIndicator =
1197 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator;
1199 Opts.SSPBufferSize =
1200 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags);
1201 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign);
1202 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) {
1203 StringRef Val = A->getValue();
1204 unsigned StackAlignment = Opts.StackAlignment;
1205 Val.getAsInteger(10, StackAlignment);
1206 Opts.StackAlignment = StackAlignment;
1209 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) {
1210 StringRef Val = A->getValue();
1211 unsigned StackProbeSize = Opts.StackProbeSize;
1212 Val.getAsInteger(0, StackProbeSize);
1213 Opts.StackProbeSize = StackProbeSize;
1216 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe);
1218 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) {
1219 StringRef Name = A->getValue();
1220 unsigned Method = llvm::StringSwitch<unsigned>(Name)
1221 .Case("legacy", CodeGenOptions::Legacy)
1222 .Case("non-legacy", CodeGenOptions::NonLegacy)
1223 .Case("mixed", CodeGenOptions::Mixed)
1225 if (Method == ~0U) {
1226 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
1229 Opts.setObjCDispatchMethod(
1230 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method));
1235 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls))
1236 Opts.ObjCConvertMessagesToRuntimeCalls = 0;
1238 if (Args.getLastArg(OPT_femulated_tls) ||
1239 Args.getLastArg(OPT_fno_emulated_tls)) {
1240 Opts.ExplicitEmulatedTLS = true;
1242 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false);
1245 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) {
1246 StringRef Name = A->getValue();
1247 unsigned Model = llvm::StringSwitch<unsigned>(Name)
1248 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel)
1249 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel)
1250 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel)
1251 .Case("local-exec", CodeGenOptions::LocalExecTLSModel)
1254 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
1257 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model));
1261 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) {
1262 StringRef Val = A->getValue();
1264 Opts.FPDenormalMode = "ieee";
1265 else if (Val == "preserve-sign")
1266 Opts.FPDenormalMode = "preserve-sign";
1267 else if (Val == "positive-zero")
1268 Opts.FPDenormalMode = "positive-zero";
1270 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
1273 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) {
1274 if (A->getOption().matches(OPT_fpcc_struct_return)) {
1275 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack);
1277 assert(A->getOption().matches(OPT_freg_struct_return));
1278 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs);
1282 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib);
1283 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option);
1284 bool NeedLocTracking = false;
1286 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file);
1287 if (!Opts.OptRecordFile.empty())
1288 NeedLocTracking = true;
1290 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) {
1291 Opts.OptRecordPasses = A->getValue();
1292 NeedLocTracking = true;
1295 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) {
1296 Opts.OptRecordFormat = A->getValue();
1297 NeedLocTracking = true;
1300 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) {
1301 Opts.OptimizationRemarkPattern =
1302 GenerateOptimizationRemarkRegex(Diags, Args, A);
1303 NeedLocTracking = true;
1306 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) {
1307 Opts.OptimizationRemarkMissedPattern =
1308 GenerateOptimizationRemarkRegex(Diags, Args, A);
1309 NeedLocTracking = true;
1312 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) {
1313 Opts.OptimizationRemarkAnalysisPattern =
1314 GenerateOptimizationRemarkRegex(Diags, Args, A);
1315 NeedLocTracking = true;
1318 Opts.DiagnosticsWithHotness =
1319 Args.hasArg(options::OPT_fdiagnostics_show_hotness);
1320 bool UsingSampleProfile = !Opts.SampleProfileFile.empty();
1321 bool UsingProfile = UsingSampleProfile ||
1322 (Opts.getProfileUse() != CodeGenOptions::ProfileNone);
1324 if (Opts.DiagnosticsWithHotness && !UsingProfile &&
1325 // An IR file will contain PGO as metadata
1326 IK.getLanguage() != Language::LLVM_IR)
1327 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo)
1328 << "-fdiagnostics-show-hotness";
1330 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value(
1331 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0);
1332 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile)
1333 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo)
1334 << "-fdiagnostics-hotness-threshold=";
1336 // If the user requested to use a sample profile for PGO, then the
1337 // backend will need to track source location information so the profile
1338 // can be incorporated into the IR.
1339 if (UsingSampleProfile)
1340 NeedLocTracking = true;
1342 // If the user requested a flag that requires source locations available in
1343 // the backend, make sure that the backend tracks source location information.
1344 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo)
1345 Opts.setDebugInfo(codegenoptions::LocTrackingOnly);
1347 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file);
1349 // Parse -fsanitize-recover= arguments.
1350 // FIXME: Report unrecoverable sanitizers incorrectly specified here.
1351 parseSanitizerKinds("-fsanitize-recover=",
1352 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags,
1353 Opts.SanitizeRecover);
1354 parseSanitizerKinds("-fsanitize-trap=",
1355 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags,
1358 Opts.CudaGpuBinaryFileName =
1359 Args.getLastArgValue(OPT_fcuda_include_gpubinary);
1361 Opts.Backchain = Args.hasArg(OPT_mbackchain);
1363 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue(
1364 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags);
1366 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true);
1368 Opts.Addrsig = Args.hasArg(OPT_faddrsig);
1370 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) {
1371 StringRef SignScope = A->getValue();
1373 if (SignScope.equals_lower("none"))
1374 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::None);
1375 else if (SignScope.equals_lower("all"))
1376 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::All);
1377 else if (SignScope.equals_lower("non-leaf"))
1378 Opts.setSignReturnAddress(
1379 CodeGenOptions::SignReturnAddressScope::NonLeaf);
1381 Diags.Report(diag::err_drv_invalid_value)
1382 << A->getAsString(Args) << SignScope;
1384 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) {
1385 StringRef SignKey = A->getValue();
1386 if (!SignScope.empty() && !SignKey.empty()) {
1387 if (SignKey.equals_lower("a_key"))
1388 Opts.setSignReturnAddressKey(
1389 CodeGenOptions::SignReturnAddressKeyValue::AKey);
1390 else if (SignKey.equals_lower("b_key"))
1391 Opts.setSignReturnAddressKey(
1392 CodeGenOptions::SignReturnAddressKeyValue::BKey);
1394 Diags.Report(diag::err_drv_invalid_value)
1395 << A->getAsString(Args) << SignKey;
1400 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce);
1402 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts);
1404 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening);
1406 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr);
1408 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ);
1410 Opts.SymbolPartition = Args.getLastArgValue(OPT_fsymbol_partition_EQ);
1415 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
1417 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file);
1418 Opts.Targets = Args.getAllArgValues(OPT_MT);
1419 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps);
1420 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps);
1421 Opts.UsePhonyTargets = Args.hasArg(OPT_MP);
1422 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H);
1423 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file);
1424 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG);
1425 if (Args.hasArg(OPT_show_includes)) {
1426 // Writing both /showIncludes and preprocessor output to stdout
1427 // would produce interleaved output, so use stderr for /showIncludes.
1428 // This behaves the same as cl.exe, when /E, /EP or /P are passed.
1429 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P))
1430 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr;
1432 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout;
1434 Opts.ShowIncludesDest = ShowIncludesDestination::None;
1436 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot);
1437 Opts.ModuleDependencyOutputDir =
1438 Args.getLastArgValue(OPT_module_dependency_dir);
1439 if (Args.hasArg(OPT_MV))
1440 Opts.OutputFormat = DependencyOutputFormat::NMake;
1441 // Add sanitizer blacklists as extra dependencies.
1442 // They won't be discovered by the regular preprocessor, so
1443 // we let make / ninja to know about this implicit dependency.
1444 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry);
1445 // Only the -fmodule-file=<file> form.
1446 for (const auto *A : Args.filtered(OPT_fmodule_file)) {
1447 StringRef Val = A->getValue();
1448 if (Val.find('=') == StringRef::npos)
1449 Opts.ExtraDeps.push_back(Val);
1453 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) {
1454 // Color diagnostics default to auto ("on" if terminal supports) in the driver
1455 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color.
1456 // Support both clang's -f[no-]color-diagnostics and gcc's
1457 // -f[no-]diagnostics-colors[=never|always|auto].
1462 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off;
1463 for (auto *A : Args) {
1464 const Option &O = A->getOption();
1465 if (O.matches(options::OPT_fcolor_diagnostics) ||
1466 O.matches(options::OPT_fdiagnostics_color)) {
1467 ShowColors = Colors_On;
1468 } else if (O.matches(options::OPT_fno_color_diagnostics) ||
1469 O.matches(options::OPT_fno_diagnostics_color)) {
1470 ShowColors = Colors_Off;
1471 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) {
1472 StringRef Value(A->getValue());
1473 if (Value == "always")
1474 ShowColors = Colors_On;
1475 else if (Value == "never")
1476 ShowColors = Colors_Off;
1477 else if (Value == "auto")
1478 ShowColors = Colors_Auto;
1481 return ShowColors == Colors_On ||
1482 (ShowColors == Colors_Auto &&
1483 llvm::sys::Process::StandardErrHasColors());
1486 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes,
1487 DiagnosticsEngine *Diags) {
1488 bool Success = true;
1489 for (const auto &Prefix : VerifyPrefixes) {
1490 // Every prefix must start with a letter and contain only alphanumeric
1491 // characters, hyphens, and underscores.
1492 auto BadChar = llvm::find_if(Prefix, [](char C) {
1493 return !isAlphanumeric(C) && C != '-' && C != '_';
1495 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) {
1498 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix;
1499 Diags->Report(diag::note_drv_verify_prefix_spelling);
1506 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
1507 DiagnosticsEngine *Diags,
1508 bool DefaultDiagColor, bool DefaultShowOpt) {
1509 bool Success = true;
1511 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file);
1513 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags))
1514 Opts.DiagnosticSerializationFile = A->getValue();
1515 Opts.IgnoreWarnings = Args.hasArg(OPT_w);
1516 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros);
1517 Opts.Pedantic = Args.hasArg(OPT_pedantic);
1518 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors);
1519 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics);
1520 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor);
1521 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column,
1522 OPT_fno_show_column,
1524 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info);
1525 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location);
1526 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths);
1527 Opts.ShowOptionNames =
1528 Args.hasFlag(OPT_fdiagnostics_show_option,
1529 OPT_fno_diagnostics_show_option, DefaultShowOpt);
1531 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes));
1533 // Default behavior is to not to show note include stacks.
1534 Opts.ShowNoteIncludeStack = false;
1535 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack,
1536 OPT_fno_diagnostics_show_note_include_stack))
1537 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack))
1538 Opts.ShowNoteIncludeStack = true;
1540 StringRef ShowOverloads =
1541 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all");
1542 if (ShowOverloads == "best")
1543 Opts.setShowOverloads(Ovl_Best);
1544 else if (ShowOverloads == "all")
1545 Opts.setShowOverloads(Ovl_All);
1549 Diags->Report(diag::err_drv_invalid_value)
1550 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args)
1554 StringRef ShowCategory =
1555 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none");
1556 if (ShowCategory == "none")
1557 Opts.ShowCategories = 0;
1558 else if (ShowCategory == "id")
1559 Opts.ShowCategories = 1;
1560 else if (ShowCategory == "name")
1561 Opts.ShowCategories = 2;
1565 Diags->Report(diag::err_drv_invalid_value)
1566 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args)
1571 Args.getLastArgValue(OPT_fdiagnostics_format, "clang");
1572 if (Format == "clang")
1573 Opts.setFormat(DiagnosticOptions::Clang);
1574 else if (Format == "msvc")
1575 Opts.setFormat(DiagnosticOptions::MSVC);
1576 else if (Format == "msvc-fallback") {
1577 Opts.setFormat(DiagnosticOptions::MSVC);
1578 Opts.CLFallbackMode = true;
1579 } else if (Format == "vi")
1580 Opts.setFormat(DiagnosticOptions::Vi);
1584 Diags->Report(diag::err_drv_invalid_value)
1585 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args)
1589 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info);
1590 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits);
1591 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location);
1592 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ);
1593 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ);
1594 if (Args.hasArg(OPT_verify))
1595 Opts.VerifyPrefixes.push_back("expected");
1596 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and
1597 // then sort it to prepare for fast lookup using std::binary_search.
1598 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) {
1599 Opts.VerifyDiagnostics = false;
1603 llvm::sort(Opts.VerifyPrefixes);
1604 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None;
1605 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=",
1606 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ),
1608 if (Args.hasArg(OPT_verify_ignore_unexpected))
1609 DiagMask = DiagnosticLevelMask::All;
1610 Opts.setVerifyIgnoreUnexpected(DiagMask);
1611 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type);
1612 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree);
1613 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags);
1614 Opts.MacroBacktraceLimit =
1615 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit,
1616 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags);
1617 Opts.TemplateBacktraceLimit = getLastArgIntValue(
1618 Args, OPT_ftemplate_backtrace_limit,
1619 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags);
1620 Opts.ConstexprBacktraceLimit = getLastArgIntValue(
1621 Args, OPT_fconstexpr_backtrace_limit,
1622 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags);
1623 Opts.SpellCheckingLimit = getLastArgIntValue(
1624 Args, OPT_fspell_checking_limit,
1625 DiagnosticOptions::DefaultSpellCheckingLimit, Diags);
1626 Opts.SnippetLineLimit = getLastArgIntValue(
1627 Args, OPT_fcaret_diagnostics_max_lines,
1628 DiagnosticOptions::DefaultSnippetLineLimit, Diags);
1629 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop,
1630 DiagnosticOptions::DefaultTabStop, Diags);
1631 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
1632 Opts.TabStop = DiagnosticOptions::DefaultTabStop;
1634 Diags->Report(diag::warn_ignoring_ftabstop_value)
1635 << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
1637 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags);
1638 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings);
1639 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks);
1644 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) {
1645 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory);
1648 /// Parse the argument to the -ftest-module-file-extension
1649 /// command-line argument.
1651 /// \returns true on error, false on success.
1652 static bool parseTestModuleFileExtensionArg(StringRef Arg,
1653 std::string &BlockName,
1654 unsigned &MajorVersion,
1655 unsigned &MinorVersion,
1657 std::string &UserInfo) {
1658 SmallVector<StringRef, 5> Args;
1659 Arg.split(Args, ':', 5);
1660 if (Args.size() < 5)
1663 BlockName = Args[0];
1664 if (Args[1].getAsInteger(10, MajorVersion)) return true;
1665 if (Args[2].getAsInteger(10, MinorVersion)) return true;
1666 if (Args[3].getAsInteger(2, Hashed)) return true;
1667 if (Args.size() > 4)
1672 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
1673 DiagnosticsEngine &Diags,
1674 bool &IsHeaderFile) {
1675 Opts.ProgramAction = frontend::ParseSyntaxOnly;
1676 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) {
1677 switch (A->getOption().getID()) {
1679 llvm_unreachable("Invalid option in group!");
1681 Opts.ProgramAction = frontend::ASTDeclList; break;
1682 case OPT_ast_dump_all_EQ:
1683 case OPT_ast_dump_EQ: {
1684 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue())
1685 .CaseLower("default", ADOF_Default)
1686 .CaseLower("json", ADOF_JSON)
1687 .Default(std::numeric_limits<unsigned>::max());
1689 if (Val != std::numeric_limits<unsigned>::max())
1690 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val);
1692 Diags.Report(diag::err_drv_invalid_value)
1693 << A->getAsString(Args) << A->getValue();
1694 Opts.ASTDumpFormat = ADOF_Default;
1699 case OPT_ast_dump_all:
1700 case OPT_ast_dump_lookups:
1701 Opts.ProgramAction = frontend::ASTDump; break;
1703 Opts.ProgramAction = frontend::ASTPrint; break;
1705 Opts.ProgramAction = frontend::ASTView; break;
1706 case OPT_compiler_options_dump:
1707 Opts.ProgramAction = frontend::DumpCompilerOptions; break;
1708 case OPT_dump_raw_tokens:
1709 Opts.ProgramAction = frontend::DumpRawTokens; break;
1710 case OPT_dump_tokens:
1711 Opts.ProgramAction = frontend::DumpTokens; break;
1713 Opts.ProgramAction = frontend::EmitAssembly; break;
1714 case OPT_emit_llvm_bc:
1715 Opts.ProgramAction = frontend::EmitBC; break;
1717 Opts.ProgramAction = frontend::EmitHTML; break;
1719 Opts.ProgramAction = frontend::EmitLLVM; break;
1720 case OPT_emit_llvm_only:
1721 Opts.ProgramAction = frontend::EmitLLVMOnly; break;
1722 case OPT_emit_codegen_only:
1723 Opts.ProgramAction = frontend::EmitCodeGenOnly; break;
1725 Opts.ProgramAction = frontend::EmitObj; break;
1727 Opts.FixItSuffix = A->getValue();
1730 Opts.ProgramAction = frontend::FixIt; break;
1731 case OPT_emit_module:
1732 Opts.ProgramAction = frontend::GenerateModule; break;
1733 case OPT_emit_module_interface:
1734 Opts.ProgramAction = frontend::GenerateModuleInterface; break;
1735 case OPT_emit_header_module:
1736 Opts.ProgramAction = frontend::GenerateHeaderModule; break;
1738 Opts.ProgramAction = frontend::GeneratePCH; break;
1739 case OPT_emit_interface_stubs: {
1741 Args.hasArg(OPT_interface_stub_version_EQ)
1742 ? Args.getLastArgValue(OPT_interface_stub_version_EQ)
1743 : "experimental-ifs-v1";
1744 if (ArgStr == "experimental-yaml-elf-v1" ||
1745 ArgStr == "experimental-tapi-elf-v1") {
1746 std::string ErrorMessage =
1747 "Invalid interface stub format: " + ArgStr.str() +
1749 Diags.Report(diag::err_drv_invalid_value)
1750 << "Must specify a valid interface stub format type, ie: "
1751 "-interface-stub-version=experimental-ifs-v1"
1753 } else if (ArgStr != "experimental-ifs-v1") {
1754 std::string ErrorMessage =
1755 "Invalid interface stub format: " + ArgStr.str() + ".";
1756 Diags.Report(diag::err_drv_invalid_value)
1757 << "Must specify a valid interface stub format type, ie: "
1758 "-interface-stub-version=experimental-ifs-v1"
1761 Opts.ProgramAction = frontend::GenerateInterfaceIfsExpV1;
1766 Opts.ProgramAction = frontend::InitOnly; break;
1767 case OPT_fsyntax_only:
1768 Opts.ProgramAction = frontend::ParseSyntaxOnly; break;
1769 case OPT_module_file_info:
1770 Opts.ProgramAction = frontend::ModuleFileInfo; break;
1771 case OPT_verify_pch:
1772 Opts.ProgramAction = frontend::VerifyPCH; break;
1773 case OPT_print_preamble:
1774 Opts.ProgramAction = frontend::PrintPreamble; break;
1776 Opts.ProgramAction = frontend::PrintPreprocessedInput; break;
1777 case OPT_templight_dump:
1778 Opts.ProgramAction = frontend::TemplightDump; break;
1779 case OPT_rewrite_macros:
1780 Opts.ProgramAction = frontend::RewriteMacros; break;
1781 case OPT_rewrite_objc:
1782 Opts.ProgramAction = frontend::RewriteObjC; break;
1783 case OPT_rewrite_test:
1784 Opts.ProgramAction = frontend::RewriteTest; break;
1786 Opts.ProgramAction = frontend::RunAnalysis; break;
1788 Opts.ProgramAction = frontend::MigrateSource; break;
1790 Opts.ProgramAction = frontend::RunPreprocessorOnly; break;
1791 case OPT_print_dependency_directives_minimized_source:
1792 Opts.ProgramAction =
1793 frontend::PrintDependencyDirectivesSourceMinimizerOutput;
1798 if (const Arg* A = Args.getLastArg(OPT_plugin)) {
1799 Opts.Plugins.emplace_back(A->getValue(0));
1800 Opts.ProgramAction = frontend::PluginAction;
1801 Opts.ActionName = A->getValue();
1803 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin);
1804 for (const auto *AA : Args.filtered(OPT_plugin_arg))
1805 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1));
1807 for (const std::string &Arg :
1808 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) {
1809 std::string BlockName;
1810 unsigned MajorVersion;
1811 unsigned MinorVersion;
1813 std::string UserInfo;
1814 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion,
1815 MinorVersion, Hashed, UserInfo)) {
1816 Diags.Report(diag::err_test_module_file_extension_format) << Arg;
1821 // Add the testing module file extension.
1822 Opts.ModuleFileExtensions.push_back(
1823 std::make_shared<TestModuleFileExtension>(
1824 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo));
1827 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) {
1828 Opts.CodeCompletionAt =
1829 ParsedSourceLocation::FromString(A->getValue());
1830 if (Opts.CodeCompletionAt.FileName.empty())
1831 Diags.Report(diag::err_drv_invalid_value)
1832 << A->getAsString(Args) << A->getValue();
1834 Opts.DisableFree = Args.hasArg(OPT_disable_free);
1836 Opts.OutputFile = Args.getLastArgValue(OPT_o);
1837 Opts.Plugins = Args.getAllArgValues(OPT_load);
1838 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch);
1839 Opts.ShowHelp = Args.hasArg(OPT_help);
1840 Opts.ShowStats = Args.hasArg(OPT_print_stats);
1841 Opts.ShowTimers = Args.hasArg(OPT_ftime_report);
1842 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus);
1843 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace);
1844 Opts.TimeTraceGranularity = getLastArgIntValue(
1845 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags);
1846 Opts.ShowVersion = Args.hasArg(OPT_version);
1847 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge);
1848 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
1849 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can);
1850 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings);
1851 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile);
1852 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp);
1853 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ);
1854 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ);
1855 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter);
1856 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups);
1857 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index);
1858 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex;
1859 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file);
1860 // Only the -fmodule-file=<file> form.
1861 for (const auto *A : Args.filtered(OPT_fmodule_file)) {
1862 StringRef Val = A->getValue();
1863 if (Val.find('=') == StringRef::npos)
1864 Opts.ModuleFiles.push_back(Val);
1866 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ);
1867 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files);
1868 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp);
1870 Opts.CodeCompleteOpts.IncludeMacros
1871 = Args.hasArg(OPT_code_completion_macros);
1872 Opts.CodeCompleteOpts.IncludeCodePatterns
1873 = Args.hasArg(OPT_code_completion_patterns);
1874 Opts.CodeCompleteOpts.IncludeGlobals
1875 = !Args.hasArg(OPT_no_code_completion_globals);
1876 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls
1877 = !Args.hasArg(OPT_no_code_completion_ns_level_decls);
1878 Opts.CodeCompleteOpts.IncludeBriefComments
1879 = Args.hasArg(OPT_code_completion_brief_comments);
1880 Opts.CodeCompleteOpts.IncludeFixIts
1881 = Args.hasArg(OPT_code_completion_with_fixits);
1883 Opts.OverrideRecordLayoutsFile
1884 = Args.getLastArgValue(OPT_foverride_record_layout_EQ);
1885 Opts.AuxTriple = Args.getLastArgValue(OPT_aux_triple);
1886 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file);
1888 if (const Arg *A = Args.getLastArg(OPT_arcmt_check,
1890 OPT_arcmt_migrate)) {
1891 switch (A->getOption().getID()) {
1893 llvm_unreachable("missed a case");
1894 case OPT_arcmt_check:
1895 Opts.ARCMTAction = FrontendOptions::ARCMT_Check;
1897 case OPT_arcmt_modify:
1898 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify;
1900 case OPT_arcmt_migrate:
1901 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate;
1905 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory);
1906 Opts.ARCMTMigrateReportOut
1907 = Args.getLastArgValue(OPT_arcmt_migrate_report_output);
1908 Opts.ARCMTMigrateEmitARCErrors
1909 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors);
1911 if (Args.hasArg(OPT_objcmt_migrate_literals))
1912 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals;
1913 if (Args.hasArg(OPT_objcmt_migrate_subscripting))
1914 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting;
1915 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax))
1916 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax;
1917 if (Args.hasArg(OPT_objcmt_migrate_property))
1918 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property;
1919 if (Args.hasArg(OPT_objcmt_migrate_readonly_property))
1920 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty;
1921 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property))
1922 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty;
1923 if (Args.hasArg(OPT_objcmt_migrate_annotation))
1924 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation;
1925 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property))
1926 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty;
1927 if (Args.hasArg(OPT_objcmt_migrate_instancetype))
1928 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype;
1929 if (Args.hasArg(OPT_objcmt_migrate_nsmacros))
1930 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros;
1931 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance))
1932 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance;
1933 if (Args.hasArg(OPT_objcmt_atomic_property))
1934 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty;
1935 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly))
1936 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty;
1937 if (Args.hasArg(OPT_objcmt_migrate_designated_init))
1938 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer;
1939 if (Args.hasArg(OPT_objcmt_migrate_all))
1940 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls;
1942 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path);
1944 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None &&
1945 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) {
1946 Diags.Report(diag::err_drv_argument_not_allowed_with)
1947 << "ARC migration" << "ObjC migration";
1950 InputKind DashX(Language::Unknown);
1951 if (const Arg *A = Args.getLastArg(OPT_x)) {
1952 StringRef XValue = A->getValue();
1954 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'.
1955 // FIXME: Supporting '<lang>-header-cpp-output' would be useful.
1956 bool Preprocessed = XValue.consume_back("-cpp-output");
1957 bool ModuleMap = XValue.consume_back("-module-map");
1959 !Preprocessed && !ModuleMap && XValue.consume_back("-header");
1961 // Principal languages.
1962 DashX = llvm::StringSwitch<InputKind>(XValue)
1963 .Case("c", Language::C)
1964 .Case("cl", Language::OpenCL)
1965 .Case("cuda", Language::CUDA)
1966 .Case("hip", Language::HIP)
1967 .Case("c++", Language::CXX)
1968 .Case("objective-c", Language::ObjC)
1969 .Case("objective-c++", Language::ObjCXX)
1970 .Case("renderscript", Language::RenderScript)
1971 .Default(Language::Unknown);
1973 // "objc[++]-cpp-output" is an acceptable synonym for
1974 // "objective-c[++]-cpp-output".
1975 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap)
1976 DashX = llvm::StringSwitch<InputKind>(XValue)
1977 .Case("objc", Language::ObjC)
1978 .Case("objc++", Language::ObjCXX)
1979 .Default(Language::Unknown);
1981 // Some special cases cannot be combined with suffixes.
1982 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile)
1983 DashX = llvm::StringSwitch<InputKind>(XValue)
1984 .Case("cpp-output", InputKind(Language::C).getPreprocessed())
1985 .Case("assembler-with-cpp", Language::Asm)
1986 .Cases("ast", "pcm",
1987 InputKind(Language::Unknown, InputKind::Precompiled))
1988 .Case("ir", Language::LLVM_IR)
1989 .Default(Language::Unknown);
1991 if (DashX.isUnknown())
1992 Diags.Report(diag::err_drv_invalid_value)
1993 << A->getAsString(Args) << A->getValue();
1996 DashX = DashX.getPreprocessed();
1998 DashX = DashX.withFormat(InputKind::ModuleMap);
2001 // '-' is the default input if none is given.
2002 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT);
2003 Opts.Inputs.clear();
2005 Inputs.push_back("-");
2006 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
2007 InputKind IK = DashX;
2008 if (IK.isUnknown()) {
2009 IK = FrontendOptions::getInputKindForExtension(
2010 StringRef(Inputs[i]).rsplit('.').second);
2011 // FIXME: Warn on this?
2014 // FIXME: Remove this hack.
2019 // The -emit-module action implicitly takes a module map.
2020 if (Opts.ProgramAction == frontend::GenerateModule &&
2021 IK.getFormat() == InputKind::Source)
2022 IK = IK.withFormat(InputKind::ModuleMap);
2024 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK);
2030 std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
2032 std::string ClangExecutable =
2033 llvm::sys::fs::getMainExecutable(Argv0, MainAddr);
2034 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR);
2037 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args,
2038 const std::string &WorkingDir) {
2039 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/");
2040 Opts.Verbose = Args.hasArg(OPT_v);
2041 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
2042 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc);
2043 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
2044 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ))
2045 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0);
2046 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir);
2048 // Canonicalize -fmodules-cache-path before storing it.
2049 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path));
2050 if (!(P.empty() || llvm::sys::path::is_absolute(P))) {
2051 if (WorkingDir.empty())
2052 llvm::sys::fs::make_absolute(P);
2054 llvm::sys::fs::make_absolute(WorkingDir, P);
2056 llvm::sys::path::remove_dots(P);
2057 Opts.ModuleCachePath = P.str();
2059 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path);
2060 // Only the -fmodule-file=<name>=<file> form.
2061 for (const auto *A : Args.filtered(OPT_fmodule_file)) {
2062 StringRef Val = A->getValue();
2063 if (Val.find('=') != StringRef::npos)
2064 Opts.PrebuiltModuleFiles.insert(Val.split('='));
2066 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path))
2067 Opts.AddPrebuiltModulePath(A->getValue());
2068 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash);
2069 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content);
2070 Opts.ModulesStrictContextHash = Args.hasArg(OPT_fmodules_strict_context_hash);
2071 Opts.ModulesValidateDiagnosticOptions =
2072 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation);
2073 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps);
2074 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd);
2075 Opts.ModuleCachePruneInterval =
2076 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60);
2077 Opts.ModuleCachePruneAfter =
2078 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60);
2079 Opts.ModulesValidateOncePerBuildSession =
2080 Args.hasArg(OPT_fmodules_validate_once_per_build_session);
2081 Opts.BuildSessionTimestamp =
2082 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0);
2083 Opts.ModulesValidateSystemHeaders =
2084 Args.hasArg(OPT_fmodules_validate_system_headers);
2085 Opts.ValidateASTInputFilesContent =
2086 Args.hasArg(OPT_fvalidate_ast_input_files_content);
2087 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ))
2088 Opts.ModuleFormat = A->getValue();
2090 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) {
2091 StringRef MacroDef = A->getValue();
2092 Opts.ModulesIgnoreMacros.insert(
2093 llvm::CachedHashString(MacroDef.split('=').first));
2096 // Add -I..., -F..., and -index-header-map options in order.
2097 bool IsIndexHeaderMap = false;
2098 bool IsSysrootSpecified =
2099 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot);
2100 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) {
2101 if (A->getOption().matches(OPT_index_header_map)) {
2102 // -index-header-map applies to the next -I or -F.
2103 IsIndexHeaderMap = true;
2107 frontend::IncludeDirGroup Group =
2108 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled;
2110 bool IsFramework = A->getOption().matches(OPT_F);
2111 std::string Path = A->getValue();
2113 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') {
2114 SmallString<32> Buffer;
2115 llvm::sys::path::append(Buffer, Opts.Sysroot,
2116 llvm::StringRef(A->getValue()).substr(1));
2117 Path = Buffer.str();
2120 Opts.AddPath(Path, Group, IsFramework,
2121 /*IgnoreSysroot*/ true);
2122 IsIndexHeaderMap = false;
2125 // Add -iprefix/-iwithprefix/-iwithprefixbefore options.
2126 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
2127 for (const auto *A :
2128 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) {
2129 if (A->getOption().matches(OPT_iprefix))
2130 Prefix = A->getValue();
2131 else if (A->getOption().matches(OPT_iwithprefix))
2132 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true);
2134 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true);
2137 for (const auto *A : Args.filtered(OPT_idirafter))
2138 Opts.AddPath(A->getValue(), frontend::After, false, true);
2139 for (const auto *A : Args.filtered(OPT_iquote))
2140 Opts.AddPath(A->getValue(), frontend::Quoted, false, true);
2141 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot))
2142 Opts.AddPath(A->getValue(), frontend::System, false,
2143 !A->getOption().matches(OPT_iwithsysroot));
2144 for (const auto *A : Args.filtered(OPT_iframework))
2145 Opts.AddPath(A->getValue(), frontend::System, true, true);
2146 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot))
2147 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true,
2148 /*IgnoreSysRoot=*/false);
2150 // Add the paths for the various language specific isystem flags.
2151 for (const auto *A : Args.filtered(OPT_c_isystem))
2152 Opts.AddPath(A->getValue(), frontend::CSystem, false, true);
2153 for (const auto *A : Args.filtered(OPT_cxx_isystem))
2154 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true);
2155 for (const auto *A : Args.filtered(OPT_objc_isystem))
2156 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true);
2157 for (const auto *A : Args.filtered(OPT_objcxx_isystem))
2158 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true);
2160 // Add the internal paths from a driver that detects standard include paths.
2161 for (const auto *A :
2162 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) {
2163 frontend::IncludeDirGroup Group = frontend::System;
2164 if (A->getOption().matches(OPT_internal_externc_isystem))
2165 Group = frontend::ExternCSystem;
2166 Opts.AddPath(A->getValue(), Group, false, true);
2169 // Add the path prefixes which are implicitly treated as being system headers.
2170 for (const auto *A :
2171 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix))
2172 Opts.AddSystemHeaderPrefix(
2173 A->getValue(), A->getOption().matches(OPT_system_header_prefix));
2175 for (const auto *A : Args.filtered(OPT_ivfsoverlay))
2176 Opts.AddVFSOverlayFile(A->getValue());
2179 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK,
2180 const llvm::Triple &T,
2181 PreprocessorOptions &PPOpts,
2182 LangStandard::Kind LangStd) {
2183 // Set some properties which depend solely on the input kind; it would be nice
2184 // to move these to the language standard, and have the driver resolve the
2185 // input kind + language standard.
2187 // FIXME: Perhaps a better model would be for a single source file to have
2188 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std)
2189 // simultaneously active?
2190 if (IK.getLanguage() == Language::Asm) {
2191 Opts.AsmPreprocessor = 1;
2192 } else if (IK.isObjectiveC()) {
2196 if (LangStd == LangStandard::lang_unspecified) {
2197 // Based on the base language, pick one.
2198 switch (IK.getLanguage()) {
2199 case Language::Unknown:
2200 case Language::LLVM_IR:
2201 llvm_unreachable("Invalid input kind!");
2202 case Language::OpenCL:
2203 LangStd = LangStandard::lang_opencl10;
2205 case Language::CUDA:
2206 LangStd = LangStandard::lang_cuda;
2210 #if defined(CLANG_DEFAULT_STD_C)
2211 LangStd = CLANG_DEFAULT_STD_C;
2213 // The PS4 uses C99 as the default C standard.
2215 LangStd = LangStandard::lang_gnu99;
2217 LangStd = LangStandard::lang_gnu11;
2220 case Language::ObjC:
2221 #if defined(CLANG_DEFAULT_STD_C)
2222 LangStd = CLANG_DEFAULT_STD_C;
2224 LangStd = LangStandard::lang_gnu11;
2228 case Language::ObjCXX:
2229 #if defined(CLANG_DEFAULT_STD_CXX)
2230 LangStd = CLANG_DEFAULT_STD_CXX;
2232 LangStd = LangStandard::lang_gnucxx14;
2235 case Language::RenderScript:
2236 LangStd = LangStandard::lang_c99;
2239 LangStd = LangStandard::lang_hip;
2244 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
2245 Opts.LineComment = Std.hasLineComments();
2246 Opts.C99 = Std.isC99();
2247 Opts.C11 = Std.isC11();
2248 Opts.C17 = Std.isC17();
2249 Opts.C2x = Std.isC2x();
2250 Opts.CPlusPlus = Std.isCPlusPlus();
2251 Opts.CPlusPlus11 = Std.isCPlusPlus11();
2252 Opts.CPlusPlus14 = Std.isCPlusPlus14();
2253 Opts.CPlusPlus17 = Std.isCPlusPlus17();
2254 Opts.CPlusPlus2a = Std.isCPlusPlus2a();
2255 Opts.Digraphs = Std.hasDigraphs();
2256 Opts.GNUMode = Std.isGNUMode();
2257 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus;
2258 Opts.GNUCVersion = 0;
2259 Opts.HexFloats = Std.hasHexFloats();
2260 Opts.ImplicitInt = Std.hasImplicitInt();
2262 // Set OpenCL Version.
2263 Opts.OpenCL = Std.isOpenCL();
2264 if (LangStd == LangStandard::lang_opencl10)
2265 Opts.OpenCLVersion = 100;
2266 else if (LangStd == LangStandard::lang_opencl11)
2267 Opts.OpenCLVersion = 110;
2268 else if (LangStd == LangStandard::lang_opencl12)
2269 Opts.OpenCLVersion = 120;
2270 else if (LangStd == LangStandard::lang_opencl20)
2271 Opts.OpenCLVersion = 200;
2272 else if (LangStd == LangStandard::lang_openclcpp)
2273 Opts.OpenCLCPlusPlusVersion = 100;
2275 // OpenCL has some additional defaults.
2279 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None);
2280 Opts.setDefaultFPContractMode(LangOptions::FPC_On);
2281 Opts.NativeHalfType = 1;
2282 Opts.NativeHalfArgsAndReturns = 1;
2283 Opts.OpenCLCPlusPlus = Opts.CPlusPlus;
2285 // Include default header file for OpenCL.
2286 if (Opts.IncludeDefaultHeader) {
2287 if (Opts.DeclareOpenCLBuiltins) {
2288 // Only include base header file for builtin types and constants.
2289 PPOpts.Includes.push_back("opencl-c-base.h");
2291 PPOpts.Includes.push_back("opencl-c.h");
2296 Opts.HIP = IK.getLanguage() == Language::HIP;
2297 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP;
2299 // Set default FP_CONTRACT to FAST.
2300 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast);
2302 Opts.RenderScript = IK.getLanguage() == Language::RenderScript;
2303 if (Opts.RenderScript) {
2304 Opts.NativeHalfType = 1;
2305 Opts.NativeHalfArgsAndReturns = 1;
2308 // OpenCL and C++ both have bool, true, false keywords.
2309 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
2311 // OpenCL has half keyword
2312 Opts.Half = Opts.OpenCL;
2314 // C++ has wchar_t keyword.
2315 Opts.WChar = Opts.CPlusPlus;
2317 Opts.GNUKeywords = Opts.GNUMode;
2318 Opts.CXXOperatorNames = Opts.CPlusPlus;
2320 Opts.AlignedAllocation = Opts.CPlusPlus17;
2322 Opts.DollarIdents = !Opts.AsmPreprocessor;
2324 // Enable [[]] attributes in C++11 and C2x by default.
2325 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x;
2328 /// Attempt to parse a visibility value out of the given argument.
2329 static Visibility parseVisibility(Arg *arg, ArgList &args,
2330 DiagnosticsEngine &diags) {
2331 StringRef value = arg->getValue();
2332 if (value == "default") {
2333 return DefaultVisibility;
2334 } else if (value == "hidden" || value == "internal") {
2335 return HiddenVisibility;
2336 } else if (value == "protected") {
2337 // FIXME: diagnose if target does not support protected visibility
2338 return ProtectedVisibility;
2341 diags.Report(diag::err_drv_invalid_value)
2342 << arg->getAsString(args) << value;
2343 return DefaultVisibility;
2346 /// Check if input file kind and language standard are compatible.
2347 static bool IsInputCompatibleWithStandard(InputKind IK,
2348 const LangStandard &S) {
2349 switch (IK.getLanguage()) {
2350 case Language::Unknown:
2351 case Language::LLVM_IR:
2352 llvm_unreachable("should not parse language flags for this input");
2355 case Language::ObjC:
2356 case Language::RenderScript:
2357 return S.getLanguage() == Language::C;
2359 case Language::OpenCL:
2360 return S.getLanguage() == Language::OpenCL;
2363 case Language::ObjCXX:
2364 return S.getLanguage() == Language::CXX;
2366 case Language::CUDA:
2367 // FIXME: What -std= values should be permitted for CUDA compilations?
2368 return S.getLanguage() == Language::CUDA ||
2369 S.getLanguage() == Language::CXX;
2372 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP;
2375 // Accept (and ignore) all -std= values.
2376 // FIXME: The -std= value is not ignored; it affects the tokenization
2377 // and preprocessing rules if we're preprocessing this asm input.
2381 llvm_unreachable("unexpected input language");
2384 /// Get language name for given input kind.
2385 static const StringRef GetInputKindName(InputKind IK) {
2386 switch (IK.getLanguage()) {
2389 case Language::ObjC:
2390 return "Objective-C";
2393 case Language::ObjCXX:
2394 return "Objective-C++";
2395 case Language::OpenCL:
2397 case Language::CUDA:
2399 case Language::RenderScript:
2400 return "RenderScript";
2406 case Language::LLVM_IR:
2409 case Language::Unknown:
2412 llvm_unreachable("unknown input language");
2415 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
2416 const TargetOptions &TargetOpts,
2417 PreprocessorOptions &PPOpts,
2418 DiagnosticsEngine &Diags) {
2419 // FIXME: Cleanup per-file based stuff.
2420 LangStandard::Kind LangStd = LangStandard::lang_unspecified;
2421 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) {
2422 LangStd = LangStandard::getLangKind(A->getValue());
2423 if (LangStd == LangStandard::lang_unspecified) {
2424 Diags.Report(diag::err_drv_invalid_value)
2425 << A->getAsString(Args) << A->getValue();
2426 // Report supported standards with short description.
2427 for (unsigned KindValue = 0;
2428 KindValue != LangStandard::lang_unspecified;
2430 const LangStandard &Std = LangStandard::getLangStandardForKind(
2431 static_cast<LangStandard::Kind>(KindValue));
2432 if (IsInputCompatibleWithStandard(IK, Std)) {
2433 auto Diag = Diags.Report(diag::note_drv_use_standard);
2434 Diag << Std.getName() << Std.getDescription();
2435 unsigned NumAliases = 0;
2436 #define LANGSTANDARD(id, name, lang, desc, features)
2437 #define LANGSTANDARD_ALIAS(id, alias) \
2438 if (KindValue == LangStandard::lang_##id) ++NumAliases;
2439 #define LANGSTANDARD_ALIAS_DEPR(id, alias)
2440 #include "clang/Basic/LangStandards.def"
2442 #define LANGSTANDARD(id, name, lang, desc, features)
2443 #define LANGSTANDARD_ALIAS(id, alias) \
2444 if (KindValue == LangStandard::lang_##id) Diag << alias;
2445 #define LANGSTANDARD_ALIAS_DEPR(id, alias)
2446 #include "clang/Basic/LangStandards.def"
2450 // Valid standard, check to make sure language and standard are
2452 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
2453 if (!IsInputCompatibleWithStandard(IK, Std)) {
2454 Diags.Report(diag::err_drv_argument_not_allowed_with)
2455 << A->getAsString(Args) << GetInputKindName(IK);
2460 if (Args.hasArg(OPT_fno_dllexport_inlines))
2461 Opts.DllExportInlines = false;
2463 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) {
2464 StringRef Name = A->getValue();
2465 if (Name == "full" || Name == "branch") {
2466 Opts.CFProtectionBranch = 1;
2469 // -cl-std only applies for OpenCL language standards.
2470 // Override the -std option in this case.
2471 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) {
2472 LangStandard::Kind OpenCLLangStd
2473 = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
2474 .Cases("cl", "CL", LangStandard::lang_opencl10)
2475 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11)
2476 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12)
2477 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20)
2478 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp)
2479 .Default(LangStandard::lang_unspecified);
2481 if (OpenCLLangStd == LangStandard::lang_unspecified) {
2482 Diags.Report(diag::err_drv_invalid_value)
2483 << A->getAsString(Args) << A->getValue();
2486 LangStd = OpenCLLangStd;
2489 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header);
2490 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins);
2492 llvm::Triple T(TargetOpts.Triple);
2493 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd);
2495 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0.
2496 // This option should be deprecated for CL > 1.0 because
2497 // this option was added for compatibility with OpenCL 1.0.
2498 if (Args.getLastArg(OPT_cl_strict_aliasing)
2499 && Opts.OpenCLVersion > 100) {
2500 Diags.Report(diag::warn_option_invalid_ocl_version)
2501 << Opts.getOpenCLVersionTuple().getAsString()
2502 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args);
2505 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension
2506 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag,
2507 // while a subset (the non-C++ GNU keywords) is provided by GCC's
2508 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single
2509 // name, as it doesn't seem a useful distinction.
2510 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords,
2513 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs);
2515 if (Args.hasArg(OPT_fno_operator_names))
2516 Opts.CXXOperatorNames = 0;
2518 if (Args.hasArg(OPT_fcuda_is_device))
2519 Opts.CUDAIsDevice = 1;
2521 if (Args.hasArg(OPT_fcuda_allow_variadic_functions))
2522 Opts.CUDAAllowVariadicFunctions = 1;
2524 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr))
2525 Opts.CUDAHostDeviceConstexpr = 0;
2527 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals))
2528 Opts.CUDADeviceApproxTranscendentals = 1;
2530 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc);
2531 Opts.HIPUseNewLaunchAPI = Args.hasArg(OPT_fhip_new_launch_api);
2534 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) {
2535 StringRef value = arg->getValue();
2536 if (Opts.ObjCRuntime.tryParse(value))
2537 Diags.Report(diag::err_drv_unknown_objc_runtime) << value;
2540 if (Args.hasArg(OPT_fobjc_gc_only))
2541 Opts.setGC(LangOptions::GCOnly);
2542 else if (Args.hasArg(OPT_fobjc_gc))
2543 Opts.setGC(LangOptions::HybridGC);
2544 else if (Args.hasArg(OPT_fobjc_arc)) {
2545 Opts.ObjCAutoRefCount = 1;
2546 if (!Opts.ObjCRuntime.allowsARC())
2547 Diags.Report(diag::err_arc_unsupported_on_runtime);
2550 // ObjCWeakRuntime tracks whether the runtime supports __weak, not
2551 // whether the feature is actually enabled. This is predominantly
2552 // determined by -fobjc-runtime, but we allow it to be overridden
2553 // from the command line for testing purposes.
2554 if (Args.hasArg(OPT_fobjc_runtime_has_weak))
2555 Opts.ObjCWeakRuntime = 1;
2557 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak();
2559 // ObjCWeak determines whether __weak is actually enabled.
2560 // Note that we allow -fno-objc-weak to disable this even in ARC mode.
2561 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) {
2562 if (!weakArg->getOption().matches(OPT_fobjc_weak)) {
2563 assert(!Opts.ObjCWeak);
2564 } else if (Opts.getGC() != LangOptions::NonGC) {
2565 Diags.Report(diag::err_objc_weak_with_gc);
2566 } else if (!Opts.ObjCWeakRuntime) {
2567 Diags.Report(diag::err_objc_weak_unsupported);
2571 } else if (Opts.ObjCAutoRefCount) {
2572 Opts.ObjCWeak = Opts.ObjCWeakRuntime;
2575 if (Args.hasArg(OPT_fno_objc_infer_related_result_type))
2576 Opts.ObjCInferRelatedResultType = 0;
2578 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime))
2579 Opts.ObjCSubscriptingLegacyRuntime =
2580 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX);
2583 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) {
2584 // Check that the version has 1 to 3 components and the minor and patch
2585 // versions fit in two decimal digits.
2586 VersionTuple GNUCVer;
2587 bool Invalid = GNUCVer.tryParse(A->getValue());
2588 unsigned Major = GNUCVer.getMajor();
2589 unsigned Minor = GNUCVer.getMinor().getValueOr(0);
2590 unsigned Patch = GNUCVer.getSubminor().getValueOr(0);
2591 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) {
2592 Diags.Report(diag::err_drv_invalid_value)
2593 << A->getAsString(Args) << A->getValue();
2595 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch;
2598 if (Args.hasArg(OPT_fgnu89_inline)) {
2600 Diags.Report(diag::err_drv_argument_not_allowed_with)
2601 << "-fgnu89-inline" << GetInputKindName(IK);
2606 if (Args.hasArg(OPT_fapple_kext)) {
2607 if (!Opts.CPlusPlus)
2608 Diags.Report(diag::warn_c_kext);
2613 if (Args.hasArg(OPT_print_ivar_layout))
2614 Opts.ObjCGCBitmapPrint = 1;
2616 if (Args.hasArg(OPT_fno_constant_cfstrings))
2617 Opts.NoConstantCFStrings = 1;
2618 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ))
2620 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue())
2621 .Cases("unspecified", "standalone", "objc",
2622 LangOptions::CoreFoundationABI::ObjectiveC)
2623 .Cases("swift", "swift-5.0",
2624 LangOptions::CoreFoundationABI::Swift5_0)
2625 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2)
2626 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1)
2627 .Default(LangOptions::CoreFoundationABI::ObjectiveC);
2629 if (Args.hasArg(OPT_fzvector))
2632 if (Args.hasArg(OPT_pthread))
2633 Opts.POSIXThreads = 1;
2635 // The value-visibility mode defaults to "default".
2636 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) {
2637 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags));
2639 Opts.setValueVisibilityMode(DefaultVisibility);
2642 // The type-visibility mode defaults to the value-visibility mode.
2643 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) {
2644 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags));
2646 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode());
2649 if (Args.hasArg(OPT_fvisibility_inlines_hidden))
2650 Opts.InlineVisibilityHidden = 1;
2652 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden))
2653 Opts.GlobalAllocationFunctionVisibilityHidden = 1;
2655 if (Args.hasArg(OPT_fapply_global_visibility_to_externs))
2656 Opts.SetVisibilityForExternDecls = 1;
2658 if (Args.hasArg(OPT_ftrapv)) {
2659 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
2660 // Set the handler, if one is specified.
2661 Opts.OverflowHandler =
2662 Args.getLastArgValue(OPT_ftrapv_handler);
2664 else if (Args.hasArg(OPT_fwrapv))
2665 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
2667 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility);
2668 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions);
2669 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt;
2670 Opts.MSCompatibilityVersion = 0;
2671 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) {
2673 if (VT.tryParse(A->getValue()))
2674 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
2676 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 +
2677 VT.getMinor().getValueOr(0) * 100000 +
2678 VT.getSubminor().getValueOr(0);
2681 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs
2682 // is specified, or -std is set to a conforming mode.
2683 // Trigraphs are disabled by default in c++1z onwards.
2684 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17;
2686 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs);
2688 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers,
2689 OPT_fno_dollars_in_identifiers,
2691 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
2692 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags);
2693 Opts.Borland = Args.hasArg(OPT_fborland_extensions);
2694 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings);
2695 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings,
2697 if (Arg *A = Args.getLastArg(OPT_flax_vector_conversions_EQ)) {
2698 using LaxKind = LangOptions::LaxVectorConversionKind;
2699 if (auto Kind = llvm::StringSwitch<Optional<LaxKind>>(A->getValue())
2700 .Case("none", LaxKind::None)
2701 .Case("integer", LaxKind::Integer)
2702 .Case("all", LaxKind::All)
2703 .Default(llvm::None))
2704 Opts.setLaxVectorConversions(*Kind);
2706 Diags.Report(diag::err_drv_invalid_value)
2707 << A->getAsString(Args) << A->getValue();
2709 if (Args.hasArg(OPT_fno_threadsafe_statics))
2710 Opts.ThreadsafeStatics = 0;
2711 Opts.Exceptions = Args.hasArg(OPT_fexceptions);
2712 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions);
2713 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions);
2717 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) &&
2719 Opts.PaddingOnUnsignedFixedPoint =
2720 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point,
2721 OPT_fno_padding_on_unsigned_fixed_point,
2722 /*Default=*/false) &&
2725 // Handle exception personalities
2726 Arg *A = Args.getLastArg(
2727 options::OPT_fsjlj_exceptions, options::OPT_fseh_exceptions,
2728 options::OPT_fdwarf_exceptions, options::OPT_fwasm_exceptions);
2730 const Option &Opt = A->getOption();
2731 llvm::Triple T(TargetOpts.Triple);
2732 if (T.isWindowsMSVCEnvironment())
2733 Diags.Report(diag::err_fe_invalid_exception_model)
2734 << Opt.getName() << T.str();
2736 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions);
2737 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions);
2738 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions);
2739 Opts.WasmExceptions = Opt.matches(options::OPT_fwasm_exceptions);
2742 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind);
2743 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp);
2745 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti);
2746 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data);
2747 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL
2748 && Opts.OpenCLVersion == 200);
2749 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional);
2750 Opts.Coroutines = Opts.CPlusPlus2a || Args.hasArg(OPT_fcoroutines_ts);
2752 Opts.DoubleSquareBracketAttributes =
2753 Args.hasFlag(OPT_fdouble_square_bracket_attributes,
2754 OPT_fno_double_square_bracket_attributes,
2755 Opts.DoubleSquareBracketAttributes);
2757 Opts.CPlusPlusModules = Opts.CPlusPlus2a;
2758 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts);
2760 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules;
2761 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse);
2762 Opts.ModulesDeclUse =
2763 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse;
2764 // FIXME: We only need this in C++ modules / Modules TS if we might textually
2765 // enter a different module (eg, when building a header unit).
2766 Opts.ModulesLocalVisibility =
2767 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS ||
2768 Opts.CPlusPlusModules;
2769 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen);
2770 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo);
2771 Opts.ModulesSearchAll = Opts.Modules &&
2772 !Args.hasArg(OPT_fno_modules_search_all) &&
2773 Args.hasArg(OPT_fmodules_search_all);
2774 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery);
2775 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules);
2776 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char);
2777 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar);
2778 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus2a);
2779 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) {
2780 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue())
2785 if (Opts.WCharSize == 0)
2786 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue();
2788 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true);
2789 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums);
2790 Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
2791 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
2792 if (!Opts.NoBuiltin)
2793 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs);
2794 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin);
2795 Opts.RelaxedTemplateTemplateArgs =
2796 Args.hasArg(OPT_frelaxed_template_template_args);
2797 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation);
2798 Opts.AlignedAllocation =
2799 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation,
2800 Opts.AlignedAllocation);
2801 Opts.AlignedAllocationUnavailable =
2802 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable);
2803 Opts.NewAlignOverride =
2804 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags);
2805 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) {
2806 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ);
2807 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args)
2809 Opts.NewAlignOverride = 0;
2811 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts);
2812 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions);
2813 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control);
2814 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
2815 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno);
2816 Opts.InstantiationDepth =
2817 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags);
2819 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags);
2820 Opts.ConstexprCallDepth =
2821 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags);
2822 Opts.ConstexprStepLimit =
2823 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags);
2824 Opts.EnableNewConstInterp =
2825 Args.hasArg(OPT_fexperimental_new_constant_interpreter);
2826 Opts.ForceNewConstInterp =
2827 Args.hasArg(OPT_fforce_experimental_new_constant_interpreter);
2828 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags);
2829 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing);
2830 Opts.NumLargeByValueCopy =
2831 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags);
2832 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields);
2833 Opts.ObjCConstantStringClass =
2834 Args.getLastArgValue(OPT_fconstant_string_class);
2835 Opts.ObjCDefaultSynthProperties =
2836 !Args.hasArg(OPT_disable_objc_default_synthesize_properties);
2837 Opts.EncodeExtendedBlockSig =
2838 Args.hasArg(OPT_fencode_extended_block_signature);
2839 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls);
2840 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags);
2841 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags);
2842 Opts.AlignDouble = Args.hasArg(OPT_malign_double);
2843 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128)
2845 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0;
2846 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble);
2847 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
2848 Opts.ROPI = Args.hasArg(OPT_fropi);
2849 Opts.RWPI = Args.hasArg(OPT_frwpi);
2850 Opts.PIE = Args.hasArg(OPT_pic_is_pie);
2851 Opts.Static = Args.hasArg(OPT_static_define);
2852 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple);
2853 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple
2854 || Args.hasArg(OPT_fdump_record_layouts);
2855 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts);
2856 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking);
2857 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align);
2858 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant);
2859 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math);
2860 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat);
2861 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map);
2862 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype);
2863 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support);
2864 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id);
2865 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal);
2866 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack);
2867 Opts.ModuleName = Args.getLastArgValue(OPT_fmodule_name_EQ);
2868 Opts.CurrentModule = Opts.ModuleName;
2869 Opts.AppExt = Args.hasArg(OPT_fapplication_extension);
2870 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature);
2871 llvm::sort(Opts.ModuleFeatures);
2872 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type);
2873 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns);
2874 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns
2876 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns)
2877 | Opts.NativeHalfArgsAndReturns;
2878 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm);
2879 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions
2881 // __declspec is enabled by default for the PS4 by the driver, and also
2882 // enabled for Microsoft Extensions or Borland Extensions, here.
2884 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a
2885 // CUDA extension. However, it is required for supporting
2886 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has
2887 // been rewritten in terms of something more generic, remove the Opts.CUDA
2889 Opts.DeclSpecKeyword =
2890 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec,
2891 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA));
2893 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) {
2894 switch (llvm::StringSwitch<unsigned>(A->getValue())
2895 .Case("target", LangOptions::ASMM_Target)
2896 .Case("no", LangOptions::ASMM_Off)
2897 .Case("yes", LangOptions::ASMM_On)
2900 Diags.Report(diag::err_drv_invalid_value)
2901 << "-faddress-space-map-mangling=" << A->getValue();
2903 case LangOptions::ASMM_Target:
2904 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target);
2906 case LangOptions::ASMM_On:
2907 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On);
2909 case LangOptions::ASMM_Off:
2910 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off);
2915 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) {
2916 LangOptions::PragmaMSPointersToMembersKind InheritanceModel =
2917 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>(
2920 LangOptions::PPTMK_FullGeneralitySingleInheritance)
2922 LangOptions::PPTMK_FullGeneralityMultipleInheritance)
2924 LangOptions::PPTMK_FullGeneralityVirtualInheritance)
2925 .Default(LangOptions::PPTMK_BestCase);
2926 if (InheritanceModel == LangOptions::PPTMK_BestCase)
2927 Diags.Report(diag::err_drv_invalid_value)
2928 << "-fms-memptr-rep=" << A->getValue();
2930 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel);
2933 // Check for MS default calling conventions being specified.
2934 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) {
2935 LangOptions::DefaultCallingConvention DefaultCC =
2936 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue())
2937 .Case("cdecl", LangOptions::DCC_CDecl)
2938 .Case("fastcall", LangOptions::DCC_FastCall)
2939 .Case("stdcall", LangOptions::DCC_StdCall)
2940 .Case("vectorcall", LangOptions::DCC_VectorCall)
2941 .Case("regcall", LangOptions::DCC_RegCall)
2942 .Default(LangOptions::DCC_None);
2943 if (DefaultCC == LangOptions::DCC_None)
2944 Diags.Report(diag::err_drv_invalid_value)
2945 << "-fdefault-calling-conv=" << A->getValue();
2947 llvm::Triple T(TargetOpts.Triple);
2948 llvm::Triple::ArchType Arch = T.getArch();
2949 bool emitError = (DefaultCC == LangOptions::DCC_FastCall ||
2950 DefaultCC == LangOptions::DCC_StdCall) &&
2951 Arch != llvm::Triple::x86;
2952 emitError |= (DefaultCC == LangOptions::DCC_VectorCall ||
2953 DefaultCC == LangOptions::DCC_RegCall) &&
2954 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64);
2956 Diags.Report(diag::err_drv_argument_not_allowed_with)
2957 << A->getSpelling() << T.getTriple();
2959 Opts.setDefaultCallingConv(DefaultCC);
2963 if (Arg *A = Args.getLastArg(OPT_mrtd)) {
2964 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None)
2965 Diags.Report(diag::err_drv_argument_not_allowed_with)
2966 << A->getSpelling() << "-fdefault-calling-conv";
2968 llvm::Triple T(TargetOpts.Triple);
2969 if (T.getArch() != llvm::Triple::x86)
2970 Diags.Report(diag::err_drv_argument_not_allowed_with)
2971 << A->getSpelling() << T.getTriple();
2973 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall);
2977 // Check if -fopenmp is specified and set default version to 4.5.
2978 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 45 : 0;
2979 // Check if -fopenmp-simd is specified.
2980 bool IsSimdSpecified =
2981 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd,
2983 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified;
2985 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls);
2986 Opts.OpenMPIsDevice =
2987 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device);
2988 bool IsTargetSpecified =
2989 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ);
2991 if (Opts.OpenMP || Opts.OpenMPSimd) {
2992 if (int Version = getLastArgIntValue(
2993 Args, OPT_fopenmp_version_EQ,
2994 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags))
2995 Opts.OpenMP = Version;
2996 else if (IsSimdSpecified || IsTargetSpecified)
2998 // Provide diagnostic when a given target is not expected to be an OpenMP
3000 if (!Opts.OpenMPIsDevice) {
3001 switch (T.getArch()) {
3004 // Add unsupported host targets here:
3005 case llvm::Triple::nvptx:
3006 case llvm::Triple::nvptx64:
3007 Diags.Report(diag::err_drv_omp_host_target_not_supported)
3008 << TargetOpts.Triple;
3014 // Set the flag to prevent the implementation from emitting device exception
3015 // handling code for those requiring so.
3016 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) {
3017 Opts.Exceptions = 0;
3018 Opts.CXXExceptions = 0;
3020 if (Opts.OpenMPIsDevice && T.isNVPTX()) {
3021 Opts.OpenMPCUDANumSMs =
3022 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ,
3023 Opts.OpenMPCUDANumSMs, Diags);
3024 Opts.OpenMPCUDABlocksPerSM =
3025 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ,
3026 Opts.OpenMPCUDABlocksPerSM, Diags);
3027 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue(
3028 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ,
3029 Opts.OpenMPCUDAReductionBufNum, Diags);
3032 // Prevent auto-widening the representation of loop counters during an
3033 // OpenMP collapse clause.
3034 Opts.OpenMPOptimisticCollapse =
3035 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0;
3037 // Get the OpenMP target triples if any.
3038 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) {
3040 for (unsigned i = 0; i < A->getNumValues(); ++i) {
3041 llvm::Triple TT(A->getValue(i));
3043 if (TT.getArch() == llvm::Triple::UnknownArch ||
3044 !(TT.getArch() == llvm::Triple::ppc ||
3045 TT.getArch() == llvm::Triple::ppc64 ||
3046 TT.getArch() == llvm::Triple::ppc64le ||
3047 TT.getArch() == llvm::Triple::nvptx ||
3048 TT.getArch() == llvm::Triple::nvptx64 ||
3049 TT.getArch() == llvm::Triple::x86 ||
3050 TT.getArch() == llvm::Triple::x86_64))
3051 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i);
3053 Opts.OMPTargetTriples.push_back(TT);
3057 // Get OpenMP host file path if any and report if a non existent file is
3059 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) {
3060 Opts.OMPHostIRFile = A->getValue();
3061 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile))
3062 Diags.Report(diag::err_drv_omp_host_ir_file_not_found)
3063 << Opts.OMPHostIRFile;
3066 Opts.SYCLIsDevice = Args.hasArg(options::OPT_fsycl_is_device);
3068 // Set CUDA mode for OpenMP target NVPTX if specified in options
3069 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() &&
3070 Args.hasArg(options::OPT_fopenmp_cuda_mode);
3072 // Set CUDA mode for OpenMP target NVPTX if specified in options
3073 Opts.OpenMPCUDAForceFullRuntime =
3074 Opts.OpenMPIsDevice && T.isNVPTX() &&
3075 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime);
3077 // Record whether the __DEPRECATED define was requested.
3078 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro,
3079 OPT_fno_deprecated_macro,
3082 // FIXME: Eliminate this dependency.
3083 unsigned Opt = getOptimizationLevel(Args, IK, Diags),
3084 OptSize = getOptimizationLevelSize(Args);
3085 Opts.Optimize = Opt != 0;
3086 Opts.OptimizeSize = OptSize != 0;
3088 // This is the __NO_INLINE__ define, which just depends on things like the
3089 // optimization level and -fno-inline, not actually whether the backend has
3090 // inlining enabled.
3091 Opts.NoInlineDefine = !Opts.Optimize;
3092 if (Arg *InlineArg = Args.getLastArg(
3093 options::OPT_finline_functions, options::OPT_finline_hint_functions,
3094 options::OPT_fno_inline_functions, options::OPT_fno_inline))
3095 if (InlineArg->getOption().matches(options::OPT_fno_inline))
3096 Opts.NoInlineDefine = true;
3098 Opts.FastMath = Args.hasArg(OPT_ffast_math) ||
3099 Args.hasArg(OPT_cl_fast_relaxed_math);
3100 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) ||
3101 Args.hasArg(OPT_cl_finite_math_only) ||
3102 Args.hasArg(OPT_cl_fast_relaxed_math);
3103 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
3104 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
3105 Args.hasArg(OPT_cl_fast_relaxed_math);
3107 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) {
3108 StringRef Val = A->getValue();
3110 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast);
3111 else if (Val == "on")
3112 Opts.setDefaultFPContractMode(LangOptions::FPC_On);
3113 else if (Val == "off")
3114 Opts.setDefaultFPContractMode(LangOptions::FPC_Off);
3116 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
3119 Opts.RetainCommentsFromSystemHeaders =
3120 Args.hasArg(OPT_fretain_comments_from_system_headers);
3122 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags);
3125 Diags.Report(diag::err_drv_invalid_value)
3126 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP;
3128 case 0: Opts.setStackProtector(LangOptions::SSPOff); break;
3129 case 1: Opts.setStackProtector(LangOptions::SSPOn); break;
3130 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break;
3131 case 3: Opts.setStackProtector(LangOptions::SSPReq); break;
3134 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) {
3135 StringRef Val = A->getValue();
3136 if (Val == "uninitialized")
3137 Opts.setTrivialAutoVarInit(
3138 LangOptions::TrivialAutoVarInitKind::Uninitialized);
3139 else if (Val == "zero")
3140 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero);
3141 else if (Val == "pattern")
3142 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern);
3144 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
3147 // Parse -fsanitize= arguments.
3148 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
3149 Diags, Opts.Sanitize);
3150 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here.
3151 Opts.SanitizeAddressFieldPadding =
3152 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags);
3153 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist);
3155 // -fxray-instrument
3156 Opts.XRayInstrument =
3157 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false);
3159 // -fxray-always-emit-customevents
3160 Opts.XRayAlwaysEmitCustomEvents =
3161 Args.hasFlag(OPT_fxray_always_emit_customevents,
3162 OPT_fnoxray_always_emit_customevents, false);
3164 // -fxray-always-emit-typedevents
3165 Opts.XRayAlwaysEmitTypedEvents =
3166 Args.hasFlag(OPT_fxray_always_emit_typedevents,
3167 OPT_fnoxray_always_emit_customevents, false);
3169 // -fxray-{always,never}-instrument= filenames.
3170 Opts.XRayAlwaysInstrumentFiles =
3171 Args.getAllArgValues(OPT_fxray_always_instrument);
3172 Opts.XRayNeverInstrumentFiles =
3173 Args.getAllArgValues(OPT_fxray_never_instrument);
3174 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list);
3176 // -fforce-emit-vtables
3177 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables);
3179 // -fallow-editor-placeholders
3180 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders);
3182 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors);
3184 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) {
3185 Opts.setClangABICompat(LangOptions::ClangABI::Latest);
3187 StringRef Ver = A->getValue();
3188 std::pair<StringRef, StringRef> VerParts = Ver.split('.');
3189 unsigned Major, Minor = 0;
3191 // Check the version number is valid: either 3.x (0 <= x <= 9) or
3192 // y or y.0 (4 <= y <= current version).
3193 if (!VerParts.first.startswith("0") &&
3194 !VerParts.first.getAsInteger(10, Major) &&
3195 3 <= Major && Major <= CLANG_VERSION_MAJOR &&
3196 (Major == 3 ? VerParts.second.size() == 1 &&
3197 !VerParts.second.getAsInteger(10, Minor)
3198 : VerParts.first.size() == Ver.size() ||
3199 VerParts.second == "0")) {
3200 // Got a valid version number.
3201 if (Major == 3 && Minor <= 8)
3202 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8);
3203 else if (Major <= 4)
3204 Opts.setClangABICompat(LangOptions::ClangABI::Ver4);
3205 else if (Major <= 6)
3206 Opts.setClangABICompat(LangOptions::ClangABI::Ver6);
3207 else if (Major <= 7)
3208 Opts.setClangABICompat(LangOptions::ClangABI::Ver7);
3209 else if (Major <= 9)
3210 Opts.setClangABICompat(LangOptions::ClangABI::Ver9);
3211 } else if (Ver != "latest") {
3212 Diags.Report(diag::err_drv_invalid_value)
3213 << A->getAsString(Args) << A->getValue();
3217 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers);
3218 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj);
3221 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) {
3223 case frontend::ASTDeclList:
3224 case frontend::ASTDump:
3225 case frontend::ASTPrint:
3226 case frontend::ASTView:
3227 case frontend::EmitAssembly:
3228 case frontend::EmitBC:
3229 case frontend::EmitHTML:
3230 case frontend::EmitLLVM:
3231 case frontend::EmitLLVMOnly:
3232 case frontend::EmitCodeGenOnly:
3233 case frontend::EmitObj:
3234 case frontend::FixIt:
3235 case frontend::GenerateModule:
3236 case frontend::GenerateModuleInterface:
3237 case frontend::GenerateHeaderModule:
3238 case frontend::GeneratePCH:
3239 case frontend::GenerateInterfaceIfsExpV1:
3240 case frontend::ParseSyntaxOnly:
3241 case frontend::ModuleFileInfo:
3242 case frontend::VerifyPCH:
3243 case frontend::PluginAction:
3244 case frontend::RewriteObjC:
3245 case frontend::RewriteTest:
3246 case frontend::RunAnalysis:
3247 case frontend::TemplightDump:
3248 case frontend::MigrateSource:
3251 case frontend::DumpCompilerOptions:
3252 case frontend::DumpRawTokens:
3253 case frontend::DumpTokens:
3254 case frontend::InitOnly:
3255 case frontend::PrintPreamble:
3256 case frontend::PrintPreprocessedInput:
3257 case frontend::RewriteMacros:
3258 case frontend::RunPreprocessorOnly:
3259 case frontend::PrintDependencyDirectivesSourceMinimizerOutput:
3262 llvm_unreachable("invalid frontend action");
3265 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
3266 DiagnosticsEngine &Diags,
3267 frontend::ActionKind Action) {
3268 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch);
3269 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) ||
3270 Args.hasArg(OPT_pch_through_hdrstop_use);
3271 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create);
3272 Opts.PCHThroughHeader = Args.getLastArgValue(OPT_pch_through_header_EQ);
3273 Opts.UsePredefines = !Args.hasArg(OPT_undef);
3274 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record);
3275 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch);
3276 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors);
3278 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls);
3279 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl))
3280 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue());
3282 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) {
3283 StringRef Value(A->getValue());
3284 size_t Comma = Value.find(',');
3286 unsigned EndOfLine = 0;
3288 if (Comma == StringRef::npos ||
3289 Value.substr(0, Comma).getAsInteger(10, Bytes) ||
3290 Value.substr(Comma + 1).getAsInteger(10, EndOfLine))
3291 Diags.Report(diag::err_drv_preamble_format);
3293 Opts.PrecompiledPreambleBytes.first = Bytes;
3294 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0);
3298 // Add the __CET__ macro if a CFProtection option is set.
3299 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) {
3300 StringRef Name = A->getValue();
3301 if (Name == "branch")
3302 Opts.addMacroDef("__CET__=1");
3303 else if (Name == "return")
3304 Opts.addMacroDef("__CET__=2");
3305 else if (Name == "full")
3306 Opts.addMacroDef("__CET__=3");
3309 // Add macros from the command line.
3310 for (const auto *A : Args.filtered(OPT_D, OPT_U)) {
3311 if (A->getOption().matches(OPT_D))
3312 Opts.addMacroDef(A->getValue());
3314 Opts.addMacroUndef(A->getValue());
3317 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros);
3319 // Add the ordered list of -includes.
3320 for (const auto *A : Args.filtered(OPT_include))
3321 Opts.Includes.emplace_back(A->getValue());
3323 for (const auto *A : Args.filtered(OPT_chain_include))
3324 Opts.ChainedIncludes.emplace_back(A->getValue());
3326 for (const auto *A : Args.filtered(OPT_remap_file)) {
3327 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';');
3329 if (Split.second.empty()) {
3330 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args);
3334 Opts.addRemappedFile(Split.first, Split.second);
3337 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) {
3338 StringRef Name = A->getValue();
3339 unsigned Library = llvm::StringSwitch<unsigned>(Name)
3340 .Case("libc++", ARCXX_libcxx)
3341 .Case("libstdc++", ARCXX_libstdcxx)
3342 .Case("none", ARCXX_nolib)
3345 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
3347 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library;
3350 // Always avoid lexing editor placeholders when we're just running the
3351 // preprocessor as we never want to emit the
3352 // "editor placeholder in source file" error in PP only mode.
3353 if (isStrictlyPreprocessorAction(Action))
3354 Opts.LexEditorPlaceholders = false;
3356 Opts.SetUpStaticAnalyzer = Args.hasArg(OPT_setup_static_analyzer);
3359 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
3361 frontend::ActionKind Action) {
3362 if (isStrictlyPreprocessorAction(Action))
3363 Opts.ShowCPP = !Args.hasArg(OPT_dM);
3367 Opts.ShowComments = Args.hasArg(OPT_C);
3368 Opts.ShowLineMarkers = !Args.hasArg(OPT_P);
3369 Opts.ShowMacroComments = Args.hasArg(OPT_CC);
3370 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD);
3371 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI);
3372 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes);
3373 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports);
3374 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives);
3377 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args,
3378 DiagnosticsEngine &Diags) {
3379 Opts.CodeModel = getCodeModel(Args, Diags);
3380 Opts.ABI = Args.getLastArgValue(OPT_target_abi);
3381 if (Arg *A = Args.getLastArg(OPT_meabi)) {
3382 StringRef Value = A->getValue();
3383 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value)
3384 .Case("default", llvm::EABI::Default)
3385 .Case("4", llvm::EABI::EABI4)
3386 .Case("5", llvm::EABI::EABI5)
3387 .Case("gnu", llvm::EABI::GNU)
3388 .Default(llvm::EABI::Unknown);
3389 if (EABIVersion == llvm::EABI::Unknown)
3390 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
3393 Opts.EABIVersion = EABIVersion;
3395 Opts.CPU = Args.getLastArgValue(OPT_target_cpu);
3396 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath);
3397 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature);
3398 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version);
3399 Opts.Triple = Args.getLastArgValue(OPT_triple);
3400 // Use the default target triple if unspecified.
3401 if (Opts.Triple.empty())
3402 Opts.Triple = llvm::sys::getDefaultTargetTriple();
3403 Opts.Triple = llvm::Triple::normalize(Opts.Triple);
3404 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ);
3405 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128);
3406 Opts.NVPTXUseShortPointers = Args.hasFlag(
3407 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false);
3408 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) {
3409 llvm::VersionTuple Version;
3410 if (Version.tryParse(A->getValue()))
3411 Diags.Report(diag::err_drv_invalid_value)
3412 << A->getAsString(Args) << A->getValue();
3414 Opts.SDKVersion = Version;
3418 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
3419 ArrayRef<const char *> CommandLineArgs,
3420 DiagnosticsEngine &Diags) {
3421 bool Success = true;
3423 // Parse the arguments.
3424 const OptTable &Opts = getDriverOptTable();
3425 const unsigned IncludedFlagsBitmask = options::CC1Option;
3426 unsigned MissingArgIndex, MissingArgCount;
3427 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex,
3428 MissingArgCount, IncludedFlagsBitmask);
3429 LangOptions &LangOpts = *Res.getLangOpts();
3431 // Check for missing argument error.
3432 if (MissingArgCount) {
3433 Diags.Report(diag::err_drv_missing_argument)
3434 << Args.getArgString(MissingArgIndex) << MissingArgCount;
3438 // Issue errors on unknown arguments.
3439 for (const auto *A : Args.filtered(OPT_UNKNOWN)) {
3440 auto ArgString = A->getAsString(Args);
3441 std::string Nearest;
3442 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1)
3443 Diags.Report(diag::err_drv_unknown_argument) << ArgString;
3445 Diags.Report(diag::err_drv_unknown_argument_with_suggestion)
3446 << ArgString << Nearest;
3450 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags);
3451 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args);
3452 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args);
3453 if (!Res.getDependencyOutputOpts().OutputFile.empty() &&
3454 Res.getDependencyOutputOpts().Targets.empty()) {
3455 Diags.Report(diag::err_fe_dependency_file_requires_MT);
3459 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags,
3460 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/);
3461 ParseCommentArgs(LangOpts.CommentOpts, Args);
3462 ParseFileSystemArgs(Res.getFileSystemOpts(), Args);
3463 // FIXME: We shouldn't have to pass the DashX option around here
3464 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags,
3465 LangOpts.IsHeaderFile);
3466 ParseTargetArgs(Res.getTargetOpts(), Args, Diags);
3467 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags,
3468 Res.getTargetOpts(), Res.getFrontendOpts());
3469 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args,
3470 Res.getFileSystemOpts().WorkingDir);
3471 llvm::Triple T(Res.getTargetOpts().Triple);
3472 if (DashX.getFormat() == InputKind::Precompiled ||
3473 DashX.getLanguage() == Language::LLVM_IR) {
3474 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the
3475 // PassManager in BackendUtil.cpp. They need to be initializd no matter
3476 // what the input type is.
3477 if (Args.hasArg(OPT_fobjc_arc))
3478 LangOpts.ObjCAutoRefCount = 1;
3479 // PIClevel and PIELevel are needed during code generation and this should be
3480 // set regardless of the input type.
3481 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
3482 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie);
3483 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
3484 Diags, LangOpts.Sanitize);
3486 // Other LangOpts are only initialized when the input is not AST or LLVM IR.
3487 // FIXME: Should we really be calling this for an Language::Asm input?
3488 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(),
3489 Res.getPreprocessorOpts(), Diags);
3490 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
3491 LangOpts.ObjCExceptions = 1;
3492 if (T.isOSDarwin() && DashX.isPreprocessed()) {
3493 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for
3494 // preprocessed input as we don't expect it to be used with -std=libc++
3496 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found");
3500 if (Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation()))
3501 Res.FrontendOpts.LLVMArgs.push_back("-pgo-warn-misexpect");
3503 LangOpts.FunctionAlignment =
3504 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags);
3506 if (LangOpts.CUDA) {
3507 // During CUDA device-side compilation, the aux triple is the
3508 // triple used for host compilation.
3509 if (LangOpts.CUDAIsDevice)
3510 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
3513 // Set the triple of the host for OpenMP device compile.
3514 if (LangOpts.OpenMPIsDevice)
3515 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
3517 // FIXME: Override value name discarding when asan or msan is used because the
3518 // backend passes depend on the name of the alloca in order to print out
3520 Res.getCodeGenOpts().DiscardValueNames &=
3521 !LangOpts.Sanitize.has(SanitizerKind::Address) &&
3522 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) &&
3523 !LangOpts.Sanitize.has(SanitizerKind::Memory) &&
3524 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory);
3526 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags,
3527 Res.getFrontendOpts().ProgramAction);
3528 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args,
3529 Res.getFrontendOpts().ProgramAction);
3531 // Turn on -Wspir-compat for SPIR target.
3533 Res.getDiagnosticOpts().Warnings.push_back("spir-compat");
3535 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses.
3536 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses &&
3537 !Res.getLangOpts()->Sanitize.empty()) {
3538 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false;
3539 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored);
3544 std::string CompilerInvocation::getModuleHash() const {
3545 // Note: For QoI reasons, the things we use as a hash here should all be
3546 // dumped via the -module-info flag.
3547 using llvm::hash_code;
3548 using llvm::hash_value;
3549 using llvm::hash_combine;
3550 using llvm::hash_combine_range;
3552 // Start the signature with the compiler version.
3553 // FIXME: We'd rather use something more cryptographically sound than
3554 // CityHash, but this will do for now.
3555 hash_code code = hash_value(getClangFullRepositoryVersion());
3557 // Extend the signature with the language options
3558 #define LANGOPT(Name, Bits, Default, Description) \
3559 code = hash_combine(code, LangOpts->Name);
3560 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
3561 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name()));
3562 #define BENIGN_LANGOPT(Name, Bits, Default, Description)
3563 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
3564 #include "clang/Basic/LangOptions.def"
3566 for (StringRef Feature : LangOpts->ModuleFeatures)
3567 code = hash_combine(code, Feature);
3569 // Extend the signature with the target options.
3570 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU,
3572 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten)
3573 code = hash_combine(code, FeatureAsWritten);
3575 // Extend the signature with preprocessor options.
3576 const PreprocessorOptions &ppOpts = getPreprocessorOpts();
3577 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts();
3578 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord);
3580 for (const auto &I : getPreprocessorOpts().Macros) {
3581 // If we're supposed to ignore this macro for the purposes of modules,
3582 // don't put it into the hash.
3583 if (!hsOpts.ModulesIgnoreMacros.empty()) {
3584 // Check whether we're ignoring this macro.
3585 StringRef MacroDef = I.first;
3586 if (hsOpts.ModulesIgnoreMacros.count(
3587 llvm::CachedHashString(MacroDef.split('=').first)))
3591 code = hash_combine(code, I.first, I.second);
3594 // Extend the signature with the sysroot and other header search options.
3595 code = hash_combine(code, hsOpts.Sysroot,
3596 hsOpts.ModuleFormat,
3597 hsOpts.UseDebugInfo,
3598 hsOpts.UseBuiltinIncludes,
3599 hsOpts.UseStandardSystemIncludes,
3600 hsOpts.UseStandardCXXIncludes,
3602 hsOpts.ModulesValidateDiagnosticOptions);
3603 code = hash_combine(code, hsOpts.ResourceDir);
3605 if (hsOpts.ModulesStrictContextHash) {
3606 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(),
3607 hsOpts.SystemHeaderPrefixes.end());
3608 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(),
3609 hsOpts.UserEntries.end());
3610 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC,
3611 hsOpts.UserEntries.size(), UEC);
3613 const DiagnosticOptions &diagOpts = getDiagnosticOpts();
3614 #define DIAGOPT(Name, Bits, Default) \
3615 code = hash_combine(code, diagOpts.Name);
3616 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \
3617 code = hash_combine(code, diagOpts.get##Name());
3618 #include "clang/Basic/DiagnosticOptions.def"
3623 // Extend the signature with the user build path.
3624 code = hash_combine(code, hsOpts.ModuleUserBuildPath);
3626 // Extend the signature with the module file extensions.
3627 const FrontendOptions &frontendOpts = getFrontendOpts();
3628 for (const auto &ext : frontendOpts.ModuleFileExtensions) {
3629 code = ext->hashExtension(code);
3632 // When compiling with -gmodules, also hash -fdebug-prefix-map as it
3633 // affects the debug info in the PCM.
3634 if (getCodeGenOpts().DebugTypeExtRefs)
3635 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap)
3636 code = hash_combine(code, KeyValue.first, KeyValue.second);
3638 // Extend the signature with the enabled sanitizers, if at least one is
3639 // enabled. Sanitizers which cannot affect AST generation aren't hashed.
3640 SanitizerSet SanHash = LangOpts->Sanitize;
3641 SanHash.clear(getPPTransparentSanitizers());
3642 if (!SanHash.empty())
3643 code = hash_combine(code, SanHash.Mask);
3645 return llvm::APInt(64, code).toString(36, /*Signed=*/false);
3648 template<typename IntTy>
3649 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id,
3651 DiagnosticsEngine *Diags) {
3652 IntTy Res = Default;
3653 if (Arg *A = Args.getLastArg(Id)) {
3654 if (StringRef(A->getValue()).getAsInteger(10, Res)) {
3656 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args)
3665 // Declared in clang/Frontend/Utils.h.
3666 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default,
3667 DiagnosticsEngine *Diags) {
3668 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags);
3671 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id,
3673 DiagnosticsEngine *Diags) {
3674 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags);
3677 IntrusiveRefCntPtr<llvm::vfs::FileSystem>
3678 createVFSFromCompilerInvocation(const CompilerInvocation &CI,
3679 DiagnosticsEngine &Diags) {
3680 return createVFSFromCompilerInvocation(CI, Diags,
3681 llvm::vfs::getRealFileSystem());
3684 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation(
3685 const CompilerInvocation &CI, DiagnosticsEngine &Diags,
3686 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) {
3687 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty())
3690 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS;
3691 // earlier vfs files are on the bottom
3692 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) {
3693 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer =
3694 Result->getBufferForFile(File);
3696 Diags.Report(diag::err_missing_vfs_overlay_file) << File;
3700 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML(
3701 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File,
3702 /*DiagContext*/ nullptr, Result);
3704 Diags.Report(diag::err_invalid_vfs_overlay) << File;
3713 } // namespace clang