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("constructor", codegenoptions::DebugInfoConstructor)
735 .Case("limited", codegenoptions::LimitedDebugInfo)
736 .Case("standalone", codegenoptions::FullDebugInfo)
739 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
742 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val));
744 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) {
745 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue())
746 .Case("gdb", unsigned(llvm::DebuggerKind::GDB))
747 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB))
748 .Case("sce", unsigned(llvm::DebuggerKind::SCE))
751 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
754 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val));
756 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags);
757 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info);
758 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview);
759 Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash);
760 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro);
761 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables);
762 Opts.VirtualFunctionElimination =
763 Args.hasArg(OPT_fvirtual_function_elimination);
764 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std);
765 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file);
766 Opts.SplitDwarfOutput = Args.getLastArgValue(OPT_split_dwarf_output);
767 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining);
768 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs);
769 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import);
770 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params);
771 Opts.EmbedSource = Args.hasArg(OPT_gembed_source);
773 Opts.ForceDwarfFrameSection =
774 Args.hasFlag(OPT_fforce_dwarf_frame, OPT_fno_force_dwarf_frame, false);
776 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ))
777 Opts.DebugPrefixMap.insert(StringRef(Arg).split('='));
780 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists))
781 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists;
783 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes);
784 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers);
786 const llvm::Triple::ArchType DebugEntryValueArchs[] = {
787 llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64,
788 llvm::Triple::arm, llvm::Triple::armeb};
790 llvm::Triple T(TargetOpts.Triple);
791 if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() &&
792 llvm::is_contained(DebugEntryValueArchs, T.getArch()))
793 Opts.EnableDebugEntryValues = Args.hasArg(OPT_femit_debug_entry_values);
795 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone);
796 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
797 Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs);
798 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables);
799 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg(
800 OPT_fuse_register_sized_bitfield_access);
801 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing);
802 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa);
803 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) &&
804 Args.hasArg(OPT_new_struct_path_tbaa);
805 Opts.FineGrainedBitfieldAccesses =
806 Args.hasFlag(OPT_ffine_grained_bitfield_accesses,
807 OPT_fno_fine_grained_bitfield_accesses, false);
808 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags);
809 Opts.RecordCommandLine = Args.getLastArgValue(OPT_record_command_line);
810 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants);
811 Opts.NoCommon = Args.hasArg(OPT_fno_common);
812 Opts.NoInlineLineTables = Args.hasArg(OPT_gno_inline_line_tables);
813 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float);
814 Opts.OptimizeSize = getOptimizationLevelSize(Args);
815 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) ||
816 Args.hasArg(OPT_ffreestanding));
817 if (Opts.SimplifyLibCalls)
818 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs);
820 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops,
821 (Opts.OptimizationLevel > 1));
822 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops);
824 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as);
825 Opts.Autolink = !Args.hasArg(OPT_fno_autolink);
826 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ);
827 Opts.DebugInfoForProfiling = Args.hasFlag(
828 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false);
829 Opts.DebugNameTable = static_cast<unsigned>(
830 Args.hasArg(OPT_ggnu_pubnames)
831 ? llvm::DICompileUnit::DebugNameTableKind::GNU
832 : Args.hasArg(OPT_gpubnames)
833 ? llvm::DICompileUnit::DebugNameTableKind::Default
834 : llvm::DICompileUnit::DebugNameTableKind::None);
835 Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address);
837 setPGOInstrumentor(Opts, Args, Diags);
838 Opts.InstrProfileOutput =
839 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ);
840 Opts.ProfileInstrumentUsePath =
841 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ);
842 if (!Opts.ProfileInstrumentUsePath.empty())
843 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath);
844 Opts.ProfileRemappingFile =
845 Args.getLastArgValue(OPT_fprofile_remapping_file_EQ);
846 if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) {
847 Diags.Report(diag::err_drv_argument_only_allowed_with)
848 << Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args)
849 << "-fexperimental-new-pass-manager";
852 Opts.CoverageMapping =
853 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false);
854 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping);
855 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose);
856 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments);
857 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
858 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions);
859 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit);
860 Opts.RegisterGlobalDtorsWithAtExit =
861 Args.hasArg(OPT_fregister_global_dtors_with_atexit);
862 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases);
863 Opts.CodeModel = TargetOpts.CodeModel;
864 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass);
866 // Handle -mframe-pointer option.
867 if (Arg *A = Args.getLastArg(OPT_mframe_pointer_EQ)) {
868 CodeGenOptions::FramePointerKind FP;
869 StringRef Name = A->getValue();
872 FP = CodeGenOptions::FramePointerKind::None;
873 else if (Name == "non-leaf")
874 FP = CodeGenOptions::FramePointerKind::NonLeaf;
875 else if (Name == "all")
876 FP = CodeGenOptions::FramePointerKind::All;
878 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
883 Opts.setFramePointer(FP);
886 // -pg may override -mframe-pointer
887 // TODO: This should be merged into getFramePointerKind in Clang.cpp.
888 if (Args.hasArg(OPT_pg))
889 Opts.setFramePointer(CodeGenOptions::FramePointerKind::All);
891 Opts.DisableFree = Args.hasArg(OPT_disable_free);
892 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names);
893 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls);
894 Opts.NoEscapingBlockTailCalls =
895 Args.hasArg(OPT_fno_escaping_block_tail_calls);
896 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi);
897 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) ||
898 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
899 Args.hasArg(OPT_cl_fast_relaxed_math);
900 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision);
901 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) ||
902 Args.hasArg(OPT_cl_finite_math_only) ||
903 Args.hasArg(OPT_cl_fast_relaxed_math));
904 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) ||
905 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
906 Args.hasArg(OPT_cl_finite_math_only) ||
907 Args.hasArg(OPT_cl_fast_relaxed_math));
908 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) ||
909 Args.hasArg(OPT_cl_no_signed_zeros) ||
910 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
911 Args.hasArg(OPT_cl_fast_relaxed_math));
912 Opts.Reassociate = Args.hasArg(OPT_mreassociate);
913 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero) ||
914 (Args.hasArg(OPT_fcuda_is_device) &&
915 Args.hasArg(OPT_fcuda_flush_denormals_to_zero));
916 Opts.CorrectlyRoundedDivSqrt =
917 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt);
919 Args.hasArg(OPT_cl_uniform_work_group_size);
920 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ);
921 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math);
922 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math);
923 Opts.StrictFloatCastOverflow =
924 !Args.hasArg(OPT_fno_strict_float_cast_overflow);
926 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
927 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags);
928 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack);
929 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings);
930 Opts.NoWarn = Args.hasArg(OPT_massembler_no_warn);
931 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks);
932 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
933 Opts.IncrementalLinkerCompatible =
934 Args.hasArg(OPT_mincremental_linker_compatible);
935 Opts.PIECopyRelocations =
936 Args.hasArg(OPT_mpie_copy_relocations);
937 Opts.NoPLT = Args.hasArg(OPT_fno_plt);
938 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels);
939 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm);
940 Opts.SoftFloat = Args.hasArg(OPT_msoft_float);
941 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums);
942 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return);
943 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers);
944 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables);
945 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
946 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
947 Args.hasArg(OPT_cl_fast_relaxed_math);
948 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
949 Opts.RelocationModel = getRelocModel(Args, Diags);
950 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix");
951 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single")
952 Diags.Report(diag::err_drv_invalid_value)
953 << Args.getLastArg(OPT_mthread_model)->getAsString(Args)
955 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ);
956 Opts.UseInitArray = !Args.hasArg(OPT_fno_use_init_array);
958 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections,
959 OPT_fno_function_sections, false);
960 Opts.DataSections = Args.hasFlag(OPT_fdata_sections,
961 OPT_fno_data_sections, false);
962 Opts.StackSizeSection =
963 Args.hasFlag(OPT_fstack_size_section, OPT_fno_stack_size_section, false);
964 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names,
965 OPT_fno_unique_section_names, true);
967 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions);
969 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables);
971 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks);
973 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate);
975 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ);
976 Opts.PrepareForThinLTO = false;
977 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) {
978 StringRef S = A->getValue();
980 Opts.PrepareForThinLTO = true;
981 else if (S != "full")
982 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S;
984 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false);
985 Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit);
986 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) {
987 if (IK.getLanguage() != Language::LLVM_IR)
988 Diags.Report(diag::err_drv_argument_only_allowed_with)
989 << A->getAsString(Args) << "-x ir";
990 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ);
992 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ))
993 Opts.SaveTempsFilePrefix =
994 llvm::StringSwitch<std::string>(A->getValue())
995 .Case("obj", FrontendOpts.OutputFile)
996 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str());
998 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ);
1000 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile);
1002 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops);
1003 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp);
1005 Opts.PreferVectorWidth = Args.getLastArgValue(OPT_mprefer_vector_width_EQ);
1007 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name);
1008 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier);
1010 Opts.ControlFlowGuardNoChecks = Args.hasArg(OPT_cfguard_no_checks);
1011 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard);
1013 Opts.DisableGCov = Args.hasArg(OPT_test_coverage);
1014 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data);
1015 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes);
1016 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) {
1017 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file);
1018 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file);
1019 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum);
1020 Opts.CoverageNoFunctionNamesInData =
1021 Args.hasArg(OPT_coverage_no_function_names_in_data);
1022 Opts.ProfileFilterFiles =
1023 Args.getLastArgValue(OPT_fprofile_filter_files_EQ);
1024 Opts.ProfileExcludeFiles =
1025 Args.getLastArgValue(OPT_fprofile_exclude_files_EQ);
1026 Opts.CoverageExitBlockBeforeBody =
1027 Args.hasArg(OPT_coverage_exit_block_before_body);
1028 if (Args.hasArg(OPT_coverage_version_EQ)) {
1029 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ);
1030 if (CoverageVersion.size() != 4) {
1031 Diags.Report(diag::err_drv_invalid_value)
1032 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args)
1035 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4);
1039 // Handle -fembed-bitcode option.
1040 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) {
1041 StringRef Name = A->getValue();
1042 unsigned Model = llvm::StringSwitch<unsigned>(Name)
1043 .Case("off", CodeGenOptions::Embed_Off)
1044 .Case("all", CodeGenOptions::Embed_All)
1045 .Case("bitcode", CodeGenOptions::Embed_Bitcode)
1046 .Case("marker", CodeGenOptions::Embed_Marker)
1049 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
1052 Opts.setEmbedBitcode(
1053 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model));
1055 // FIXME: For backend options that are not yet recorded as function
1056 // attributes in the IR, keep track of them so we can embed them in a
1057 // separate data section and use them when building the bitcode.
1058 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) {
1059 for (const auto &A : Args) {
1060 // Do not encode output and input.
1061 if (A->getOption().getID() == options::OPT_o ||
1062 A->getOption().getID() == options::OPT_INPUT ||
1063 A->getOption().getID() == options::OPT_x ||
1064 A->getOption().getID() == options::OPT_fembed_bitcode ||
1065 (A->getOption().getGroup().isValid() &&
1066 A->getOption().getGroup().getID() == options::OPT_W_Group))
1069 A->render(Args, ASL);
1070 for (const auto &arg : ASL) {
1071 StringRef ArgStr(arg);
1072 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end());
1073 // using \00 to separate each commandline options.
1074 Opts.CmdArgs.push_back('\0');
1079 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type);
1080 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions);
1081 Opts.InstrumentFunctionsAfterInlining =
1082 Args.hasArg(OPT_finstrument_functions_after_inlining);
1083 Opts.InstrumentFunctionEntryBare =
1084 Args.hasArg(OPT_finstrument_function_entry_bare);
1086 Opts.XRayInstrumentFunctions =
1087 Args.hasArg(OPT_fxray_instrument);
1088 Opts.XRayAlwaysEmitCustomEvents =
1089 Args.hasArg(OPT_fxray_always_emit_customevents);
1090 Opts.XRayAlwaysEmitTypedEvents =
1091 Args.hasArg(OPT_fxray_always_emit_typedevents);
1092 Opts.XRayInstructionThreshold =
1093 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags);
1095 auto XRayInstrBundles =
1096 Args.getAllArgValues(OPT_fxray_instrumentation_bundle);
1097 if (XRayInstrBundles.empty())
1098 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All;
1100 for (const auto &A : XRayInstrBundles)
1101 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args,
1102 Diags, Opts.XRayInstrumentationBundle);
1104 Opts.PatchableFunctionEntryCount =
1105 getLastArgIntValue(Args, OPT_fpatchable_function_entry_EQ, 0, Diags);
1106 Opts.PatchableFunctionEntryOffset = getLastArgIntValue(
1107 Args, OPT_fpatchable_function_entry_offset_EQ, 0, Diags);
1108 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg);
1109 Opts.CallFEntry = Args.hasArg(OPT_mfentry);
1110 Opts.MNopMCount = Args.hasArg(OPT_mnop_mcount);
1111 Opts.RecordMCount = Args.hasArg(OPT_mrecord_mcount);
1112 Opts.PackedStack = Args.hasArg(OPT_mpacked_stack);
1113 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info);
1115 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) {
1116 StringRef Name = A->getValue();
1117 if (Name == "full") {
1118 Opts.CFProtectionReturn = 1;
1119 Opts.CFProtectionBranch = 1;
1120 } else if (Name == "return")
1121 Opts.CFProtectionReturn = 1;
1122 else if (Name == "branch")
1123 Opts.CFProtectionBranch = 1;
1124 else if (Name != "none") {
1125 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
1130 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections,
1131 OPT_compress_debug_sections_EQ)) {
1132 if (A->getOption().getID() == OPT_compress_debug_sections) {
1133 // TODO: be more clever about the compression type auto-detection
1134 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU);
1136 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue())
1137 .Case("none", llvm::DebugCompressionType::None)
1138 .Case("zlib", llvm::DebugCompressionType::Z)
1139 .Case("zlib-gnu", llvm::DebugCompressionType::GNU)
1140 .Default(llvm::DebugCompressionType::None);
1141 Opts.setCompressDebugSections(DCT);
1145 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations);
1146 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir);
1148 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) {
1149 CodeGenOptions::BitcodeFileToLink F;
1150 F.Filename = A->getValue();
1151 if (A->getOption().matches(OPT_mlink_builtin_bitcode)) {
1152 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded;
1153 // When linking CUDA bitcode, propagate function attributes so that
1154 // e.g. libdevice gets fast-math attrs if we're building with fast-math.
1155 F.PropagateAttrs = true;
1156 F.Internalize = true;
1158 Opts.LinkBitcodeFiles.push_back(F);
1160 Opts.SanitizeCoverageType =
1161 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags);
1162 Opts.SanitizeCoverageIndirectCalls =
1163 Args.hasArg(OPT_fsanitize_coverage_indirect_calls);
1164 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb);
1165 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp);
1166 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div);
1167 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep);
1168 Opts.SanitizeCoverage8bitCounters =
1169 Args.hasArg(OPT_fsanitize_coverage_8bit_counters);
1170 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc);
1171 Opts.SanitizeCoverageTracePCGuard =
1172 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard);
1173 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune);
1174 Opts.SanitizeCoverageInline8bitCounters =
1175 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters);
1176 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table);
1177 Opts.SanitizeCoverageStackDepth =
1178 Args.hasArg(OPT_fsanitize_coverage_stack_depth);
1179 Opts.SanitizeMemoryTrackOrigins =
1180 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags);
1181 Opts.SanitizeMemoryUseAfterDtor =
1182 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor,
1183 OPT_fno_sanitize_memory_use_after_dtor,
1185 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime);
1186 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso);
1187 Opts.SanitizeCfiICallGeneralizePointers =
1188 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers);
1189 Opts.SanitizeCfiCanonicalJumpTables =
1190 Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables);
1191 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats);
1192 if (Arg *A = Args.getLastArg(
1193 OPT_fsanitize_address_poison_custom_array_cookie,
1194 OPT_fno_sanitize_address_poison_custom_array_cookie)) {
1195 Opts.SanitizeAddressPoisonCustomArrayCookie =
1196 A->getOption().getID() ==
1197 OPT_fsanitize_address_poison_custom_array_cookie;
1199 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope,
1200 OPT_fno_sanitize_address_use_after_scope)) {
1201 Opts.SanitizeAddressUseAfterScope =
1202 A->getOption().getID() == OPT_fsanitize_address_use_after_scope;
1204 Opts.SanitizeAddressGlobalsDeadStripping =
1205 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping);
1206 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator,
1207 OPT_fno_sanitize_address_use_odr_indicator)) {
1208 Opts.SanitizeAddressUseOdrIndicator =
1209 A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator;
1211 Opts.SSPBufferSize =
1212 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags);
1213 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign);
1214 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) {
1215 StringRef Val = A->getValue();
1216 unsigned StackAlignment = Opts.StackAlignment;
1217 Val.getAsInteger(10, StackAlignment);
1218 Opts.StackAlignment = StackAlignment;
1221 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) {
1222 StringRef Val = A->getValue();
1223 unsigned StackProbeSize = Opts.StackProbeSize;
1224 Val.getAsInteger(0, StackProbeSize);
1225 Opts.StackProbeSize = StackProbeSize;
1228 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe);
1230 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) {
1231 StringRef Name = A->getValue();
1232 unsigned Method = llvm::StringSwitch<unsigned>(Name)
1233 .Case("legacy", CodeGenOptions::Legacy)
1234 .Case("non-legacy", CodeGenOptions::NonLegacy)
1235 .Case("mixed", CodeGenOptions::Mixed)
1237 if (Method == ~0U) {
1238 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
1241 Opts.setObjCDispatchMethod(
1242 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method));
1247 if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls))
1248 Opts.ObjCConvertMessagesToRuntimeCalls = 0;
1250 if (Args.getLastArg(OPT_femulated_tls) ||
1251 Args.getLastArg(OPT_fno_emulated_tls)) {
1252 Opts.ExplicitEmulatedTLS = true;
1254 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false);
1257 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) {
1258 StringRef Name = A->getValue();
1259 unsigned Model = llvm::StringSwitch<unsigned>(Name)
1260 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel)
1261 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel)
1262 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel)
1263 .Case("local-exec", CodeGenOptions::LocalExecTLSModel)
1266 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
1269 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model));
1273 Opts.TLSSize = getLastArgIntValue(Args, OPT_mtls_size_EQ, 0, Diags);
1275 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) {
1276 StringRef Val = A->getValue();
1277 Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val);
1278 if (Opts.FPDenormalMode == llvm::DenormalMode::Invalid)
1279 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
1282 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) {
1283 if (A->getOption().matches(OPT_fpcc_struct_return)) {
1284 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack);
1286 assert(A->getOption().matches(OPT_freg_struct_return));
1287 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs);
1291 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib);
1292 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option);
1293 bool NeedLocTracking = false;
1295 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file);
1296 if (!Opts.OptRecordFile.empty())
1297 NeedLocTracking = true;
1299 if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) {
1300 Opts.OptRecordPasses = A->getValue();
1301 NeedLocTracking = true;
1304 if (Arg *A = Args.getLastArg(OPT_opt_record_format)) {
1305 Opts.OptRecordFormat = A->getValue();
1306 NeedLocTracking = true;
1309 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) {
1310 Opts.OptimizationRemarkPattern =
1311 GenerateOptimizationRemarkRegex(Diags, Args, A);
1312 NeedLocTracking = true;
1315 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) {
1316 Opts.OptimizationRemarkMissedPattern =
1317 GenerateOptimizationRemarkRegex(Diags, Args, A);
1318 NeedLocTracking = true;
1321 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) {
1322 Opts.OptimizationRemarkAnalysisPattern =
1323 GenerateOptimizationRemarkRegex(Diags, Args, A);
1324 NeedLocTracking = true;
1327 Opts.DiagnosticsWithHotness =
1328 Args.hasArg(options::OPT_fdiagnostics_show_hotness);
1329 bool UsingSampleProfile = !Opts.SampleProfileFile.empty();
1330 bool UsingProfile = UsingSampleProfile ||
1331 (Opts.getProfileUse() != CodeGenOptions::ProfileNone);
1333 if (Opts.DiagnosticsWithHotness && !UsingProfile &&
1334 // An IR file will contain PGO as metadata
1335 IK.getLanguage() != Language::LLVM_IR)
1336 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo)
1337 << "-fdiagnostics-show-hotness";
1339 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value(
1340 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0);
1341 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile)
1342 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo)
1343 << "-fdiagnostics-hotness-threshold=";
1345 // If the user requested to use a sample profile for PGO, then the
1346 // backend will need to track source location information so the profile
1347 // can be incorporated into the IR.
1348 if (UsingSampleProfile)
1349 NeedLocTracking = true;
1351 // If the user requested a flag that requires source locations available in
1352 // the backend, make sure that the backend tracks source location information.
1353 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo)
1354 Opts.setDebugInfo(codegenoptions::LocTrackingOnly);
1356 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file);
1358 // Parse -fsanitize-recover= arguments.
1359 // FIXME: Report unrecoverable sanitizers incorrectly specified here.
1360 parseSanitizerKinds("-fsanitize-recover=",
1361 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags,
1362 Opts.SanitizeRecover);
1363 parseSanitizerKinds("-fsanitize-trap=",
1364 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags,
1367 Opts.CudaGpuBinaryFileName =
1368 Args.getLastArgValue(OPT_fcuda_include_gpubinary);
1370 Opts.Backchain = Args.hasArg(OPT_mbackchain);
1372 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue(
1373 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags);
1375 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true);
1377 Opts.Addrsig = Args.hasArg(OPT_faddrsig);
1379 if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) {
1380 StringRef SignScope = A->getValue();
1382 if (SignScope.equals_lower("none"))
1383 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::None);
1384 else if (SignScope.equals_lower("all"))
1385 Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::All);
1386 else if (SignScope.equals_lower("non-leaf"))
1387 Opts.setSignReturnAddress(
1388 CodeGenOptions::SignReturnAddressScope::NonLeaf);
1390 Diags.Report(diag::err_drv_invalid_value)
1391 << A->getAsString(Args) << SignScope;
1393 if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) {
1394 StringRef SignKey = A->getValue();
1395 if (!SignScope.empty() && !SignKey.empty()) {
1396 if (SignKey.equals_lower("a_key"))
1397 Opts.setSignReturnAddressKey(
1398 CodeGenOptions::SignReturnAddressKeyValue::AKey);
1399 else if (SignKey.equals_lower("b_key"))
1400 Opts.setSignReturnAddressKey(
1401 CodeGenOptions::SignReturnAddressKeyValue::BKey);
1403 Diags.Report(diag::err_drv_invalid_value)
1404 << A->getAsString(Args) << SignKey;
1409 Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce);
1411 Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts);
1413 Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening);
1415 Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr);
1417 Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ);
1419 Opts.SymbolPartition = Args.getLastArgValue(OPT_fsymbol_partition_EQ);
1424 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
1426 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file);
1427 Opts.Targets = Args.getAllArgValues(OPT_MT);
1428 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps);
1429 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps);
1430 Opts.UsePhonyTargets = Args.hasArg(OPT_MP);
1431 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H);
1432 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file);
1433 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG);
1434 if (Args.hasArg(OPT_show_includes)) {
1435 // Writing both /showIncludes and preprocessor output to stdout
1436 // would produce interleaved output, so use stderr for /showIncludes.
1437 // This behaves the same as cl.exe, when /E, /EP or /P are passed.
1438 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P))
1439 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr;
1441 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout;
1443 Opts.ShowIncludesDest = ShowIncludesDestination::None;
1445 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot);
1446 Opts.ModuleDependencyOutputDir =
1447 Args.getLastArgValue(OPT_module_dependency_dir);
1448 if (Args.hasArg(OPT_MV))
1449 Opts.OutputFormat = DependencyOutputFormat::NMake;
1450 // Add sanitizer blacklists as extra dependencies.
1451 // They won't be discovered by the regular preprocessor, so
1452 // we let make / ninja to know about this implicit dependency.
1453 if (!Args.hasArg(OPT_fno_sanitize_blacklist)) {
1454 for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) {
1455 StringRef Val = A->getValue();
1456 if (Val.find('=') == StringRef::npos)
1457 Opts.ExtraDeps.push_back(Val);
1459 if (Opts.IncludeSystemHeaders) {
1460 for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) {
1461 StringRef Val = A->getValue();
1462 if (Val.find('=') == StringRef::npos)
1463 Opts.ExtraDeps.push_back(Val);
1468 // Propagate the extra dependencies.
1469 for (const auto *A : Args.filtered(OPT_fdepfile_entry)) {
1470 Opts.ExtraDeps.push_back(A->getValue());
1473 // Only the -fmodule-file=<file> form.
1474 for (const auto *A : Args.filtered(OPT_fmodule_file)) {
1475 StringRef Val = A->getValue();
1476 if (Val.find('=') == StringRef::npos)
1477 Opts.ExtraDeps.push_back(Val);
1481 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) {
1482 // Color diagnostics default to auto ("on" if terminal supports) in the driver
1483 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color.
1484 // Support both clang's -f[no-]color-diagnostics and gcc's
1485 // -f[no-]diagnostics-colors[=never|always|auto].
1490 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off;
1491 for (auto *A : Args) {
1492 const Option &O = A->getOption();
1493 if (O.matches(options::OPT_fcolor_diagnostics) ||
1494 O.matches(options::OPT_fdiagnostics_color)) {
1495 ShowColors = Colors_On;
1496 } else if (O.matches(options::OPT_fno_color_diagnostics) ||
1497 O.matches(options::OPT_fno_diagnostics_color)) {
1498 ShowColors = Colors_Off;
1499 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) {
1500 StringRef Value(A->getValue());
1501 if (Value == "always")
1502 ShowColors = Colors_On;
1503 else if (Value == "never")
1504 ShowColors = Colors_Off;
1505 else if (Value == "auto")
1506 ShowColors = Colors_Auto;
1509 return ShowColors == Colors_On ||
1510 (ShowColors == Colors_Auto &&
1511 llvm::sys::Process::StandardErrHasColors());
1514 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes,
1515 DiagnosticsEngine *Diags) {
1516 bool Success = true;
1517 for (const auto &Prefix : VerifyPrefixes) {
1518 // Every prefix must start with a letter and contain only alphanumeric
1519 // characters, hyphens, and underscores.
1520 auto BadChar = llvm::find_if(Prefix, [](char C) {
1521 return !isAlphanumeric(C) && C != '-' && C != '_';
1523 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) {
1526 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix;
1527 Diags->Report(diag::note_drv_verify_prefix_spelling);
1534 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
1535 DiagnosticsEngine *Diags,
1536 bool DefaultDiagColor, bool DefaultShowOpt) {
1537 bool Success = true;
1539 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file);
1541 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags))
1542 Opts.DiagnosticSerializationFile = A->getValue();
1543 Opts.IgnoreWarnings = Args.hasArg(OPT_w);
1544 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros);
1545 Opts.Pedantic = Args.hasArg(OPT_pedantic);
1546 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors);
1547 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics);
1548 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor);
1549 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column,
1550 OPT_fno_show_column,
1552 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info);
1553 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location);
1554 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths);
1555 Opts.ShowOptionNames =
1556 Args.hasFlag(OPT_fdiagnostics_show_option,
1557 OPT_fno_diagnostics_show_option, DefaultShowOpt);
1559 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes));
1561 // Default behavior is to not to show note include stacks.
1562 Opts.ShowNoteIncludeStack = false;
1563 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack,
1564 OPT_fno_diagnostics_show_note_include_stack))
1565 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack))
1566 Opts.ShowNoteIncludeStack = true;
1568 StringRef ShowOverloads =
1569 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all");
1570 if (ShowOverloads == "best")
1571 Opts.setShowOverloads(Ovl_Best);
1572 else if (ShowOverloads == "all")
1573 Opts.setShowOverloads(Ovl_All);
1577 Diags->Report(diag::err_drv_invalid_value)
1578 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args)
1582 StringRef ShowCategory =
1583 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none");
1584 if (ShowCategory == "none")
1585 Opts.ShowCategories = 0;
1586 else if (ShowCategory == "id")
1587 Opts.ShowCategories = 1;
1588 else if (ShowCategory == "name")
1589 Opts.ShowCategories = 2;
1593 Diags->Report(diag::err_drv_invalid_value)
1594 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args)
1599 Args.getLastArgValue(OPT_fdiagnostics_format, "clang");
1600 if (Format == "clang")
1601 Opts.setFormat(DiagnosticOptions::Clang);
1602 else if (Format == "msvc")
1603 Opts.setFormat(DiagnosticOptions::MSVC);
1604 else if (Format == "msvc-fallback") {
1605 Opts.setFormat(DiagnosticOptions::MSVC);
1606 Opts.CLFallbackMode = true;
1607 } else if (Format == "vi")
1608 Opts.setFormat(DiagnosticOptions::Vi);
1612 Diags->Report(diag::err_drv_invalid_value)
1613 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args)
1617 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info);
1618 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits);
1619 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location);
1620 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ);
1621 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ);
1622 if (Args.hasArg(OPT_verify))
1623 Opts.VerifyPrefixes.push_back("expected");
1624 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and
1625 // then sort it to prepare for fast lookup using std::binary_search.
1626 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) {
1627 Opts.VerifyDiagnostics = false;
1631 llvm::sort(Opts.VerifyPrefixes);
1632 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None;
1633 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=",
1634 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ),
1636 if (Args.hasArg(OPT_verify_ignore_unexpected))
1637 DiagMask = DiagnosticLevelMask::All;
1638 Opts.setVerifyIgnoreUnexpected(DiagMask);
1639 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type);
1640 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree);
1641 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags);
1642 Opts.MacroBacktraceLimit =
1643 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit,
1644 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags);
1645 Opts.TemplateBacktraceLimit = getLastArgIntValue(
1646 Args, OPT_ftemplate_backtrace_limit,
1647 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags);
1648 Opts.ConstexprBacktraceLimit = getLastArgIntValue(
1649 Args, OPT_fconstexpr_backtrace_limit,
1650 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags);
1651 Opts.SpellCheckingLimit = getLastArgIntValue(
1652 Args, OPT_fspell_checking_limit,
1653 DiagnosticOptions::DefaultSpellCheckingLimit, Diags);
1654 Opts.SnippetLineLimit = getLastArgIntValue(
1655 Args, OPT_fcaret_diagnostics_max_lines,
1656 DiagnosticOptions::DefaultSnippetLineLimit, Diags);
1657 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop,
1658 DiagnosticOptions::DefaultTabStop, Diags);
1659 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
1660 Opts.TabStop = DiagnosticOptions::DefaultTabStop;
1662 Diags->Report(diag::warn_ignoring_ftabstop_value)
1663 << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
1665 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags);
1666 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings);
1667 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks);
1672 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) {
1673 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory);
1676 /// Parse the argument to the -ftest-module-file-extension
1677 /// command-line argument.
1679 /// \returns true on error, false on success.
1680 static bool parseTestModuleFileExtensionArg(StringRef Arg,
1681 std::string &BlockName,
1682 unsigned &MajorVersion,
1683 unsigned &MinorVersion,
1685 std::string &UserInfo) {
1686 SmallVector<StringRef, 5> Args;
1687 Arg.split(Args, ':', 5);
1688 if (Args.size() < 5)
1691 BlockName = Args[0];
1692 if (Args[1].getAsInteger(10, MajorVersion)) return true;
1693 if (Args[2].getAsInteger(10, MinorVersion)) return true;
1694 if (Args[3].getAsInteger(2, Hashed)) return true;
1695 if (Args.size() > 4)
1700 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
1701 DiagnosticsEngine &Diags,
1702 bool &IsHeaderFile) {
1703 Opts.ProgramAction = frontend::ParseSyntaxOnly;
1704 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) {
1705 switch (A->getOption().getID()) {
1707 llvm_unreachable("Invalid option in group!");
1709 Opts.ProgramAction = frontend::ASTDeclList; break;
1710 case OPT_ast_dump_all_EQ:
1711 case OPT_ast_dump_EQ: {
1712 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue())
1713 .CaseLower("default", ADOF_Default)
1714 .CaseLower("json", ADOF_JSON)
1715 .Default(std::numeric_limits<unsigned>::max());
1717 if (Val != std::numeric_limits<unsigned>::max())
1718 Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val);
1720 Diags.Report(diag::err_drv_invalid_value)
1721 << A->getAsString(Args) << A->getValue();
1722 Opts.ASTDumpFormat = ADOF_Default;
1727 case OPT_ast_dump_all:
1728 case OPT_ast_dump_lookups:
1729 Opts.ProgramAction = frontend::ASTDump; break;
1731 Opts.ProgramAction = frontend::ASTPrint; break;
1733 Opts.ProgramAction = frontend::ASTView; break;
1734 case OPT_compiler_options_dump:
1735 Opts.ProgramAction = frontend::DumpCompilerOptions; break;
1736 case OPT_dump_raw_tokens:
1737 Opts.ProgramAction = frontend::DumpRawTokens; break;
1738 case OPT_dump_tokens:
1739 Opts.ProgramAction = frontend::DumpTokens; break;
1741 Opts.ProgramAction = frontend::EmitAssembly; break;
1742 case OPT_emit_llvm_bc:
1743 Opts.ProgramAction = frontend::EmitBC; break;
1745 Opts.ProgramAction = frontend::EmitHTML; break;
1747 Opts.ProgramAction = frontend::EmitLLVM; break;
1748 case OPT_emit_llvm_only:
1749 Opts.ProgramAction = frontend::EmitLLVMOnly; break;
1750 case OPT_emit_codegen_only:
1751 Opts.ProgramAction = frontend::EmitCodeGenOnly; break;
1753 Opts.ProgramAction = frontend::EmitObj; break;
1755 Opts.FixItSuffix = A->getValue();
1758 Opts.ProgramAction = frontend::FixIt; break;
1759 case OPT_emit_module:
1760 Opts.ProgramAction = frontend::GenerateModule; break;
1761 case OPT_emit_module_interface:
1762 Opts.ProgramAction = frontend::GenerateModuleInterface; break;
1763 case OPT_emit_header_module:
1764 Opts.ProgramAction = frontend::GenerateHeaderModule; break;
1766 Opts.ProgramAction = frontend::GeneratePCH; break;
1767 case OPT_emit_interface_stubs: {
1769 Args.hasArg(OPT_interface_stub_version_EQ)
1770 ? Args.getLastArgValue(OPT_interface_stub_version_EQ)
1771 : "experimental-ifs-v1";
1772 if (ArgStr == "experimental-yaml-elf-v1" ||
1773 ArgStr == "experimental-tapi-elf-v1") {
1774 std::string ErrorMessage =
1775 "Invalid interface stub format: " + ArgStr.str() +
1777 Diags.Report(diag::err_drv_invalid_value)
1778 << "Must specify a valid interface stub format type, ie: "
1779 "-interface-stub-version=experimental-ifs-v1"
1781 } else if (ArgStr != "experimental-ifs-v1") {
1782 std::string ErrorMessage =
1783 "Invalid interface stub format: " + ArgStr.str() + ".";
1784 Diags.Report(diag::err_drv_invalid_value)
1785 << "Must specify a valid interface stub format type, ie: "
1786 "-interface-stub-version=experimental-ifs-v1"
1789 Opts.ProgramAction = frontend::GenerateInterfaceIfsExpV1;
1794 Opts.ProgramAction = frontend::InitOnly; break;
1795 case OPT_fsyntax_only:
1796 Opts.ProgramAction = frontend::ParseSyntaxOnly; break;
1797 case OPT_module_file_info:
1798 Opts.ProgramAction = frontend::ModuleFileInfo; break;
1799 case OPT_verify_pch:
1800 Opts.ProgramAction = frontend::VerifyPCH; break;
1801 case OPT_print_preamble:
1802 Opts.ProgramAction = frontend::PrintPreamble; break;
1804 Opts.ProgramAction = frontend::PrintPreprocessedInput; break;
1805 case OPT_templight_dump:
1806 Opts.ProgramAction = frontend::TemplightDump; break;
1807 case OPT_rewrite_macros:
1808 Opts.ProgramAction = frontend::RewriteMacros; break;
1809 case OPT_rewrite_objc:
1810 Opts.ProgramAction = frontend::RewriteObjC; break;
1811 case OPT_rewrite_test:
1812 Opts.ProgramAction = frontend::RewriteTest; break;
1814 Opts.ProgramAction = frontend::RunAnalysis; break;
1816 Opts.ProgramAction = frontend::MigrateSource; break;
1818 Opts.ProgramAction = frontend::RunPreprocessorOnly; break;
1819 case OPT_print_dependency_directives_minimized_source:
1820 Opts.ProgramAction =
1821 frontend::PrintDependencyDirectivesSourceMinimizerOutput;
1826 if (const Arg* A = Args.getLastArg(OPT_plugin)) {
1827 Opts.Plugins.emplace_back(A->getValue(0));
1828 Opts.ProgramAction = frontend::PluginAction;
1829 Opts.ActionName = A->getValue();
1831 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin);
1832 for (const auto *AA : Args.filtered(OPT_plugin_arg))
1833 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1));
1835 for (const std::string &Arg :
1836 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) {
1837 std::string BlockName;
1838 unsigned MajorVersion;
1839 unsigned MinorVersion;
1841 std::string UserInfo;
1842 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion,
1843 MinorVersion, Hashed, UserInfo)) {
1844 Diags.Report(diag::err_test_module_file_extension_format) << Arg;
1849 // Add the testing module file extension.
1850 Opts.ModuleFileExtensions.push_back(
1851 std::make_shared<TestModuleFileExtension>(
1852 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo));
1855 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) {
1856 Opts.CodeCompletionAt =
1857 ParsedSourceLocation::FromString(A->getValue());
1858 if (Opts.CodeCompletionAt.FileName.empty())
1859 Diags.Report(diag::err_drv_invalid_value)
1860 << A->getAsString(Args) << A->getValue();
1862 Opts.DisableFree = Args.hasArg(OPT_disable_free);
1864 Opts.OutputFile = Args.getLastArgValue(OPT_o);
1865 Opts.Plugins = Args.getAllArgValues(OPT_load);
1866 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch);
1867 Opts.ShowHelp = Args.hasArg(OPT_help);
1868 Opts.ShowStats = Args.hasArg(OPT_print_stats);
1869 Opts.ShowTimers = Args.hasArg(OPT_ftime_report);
1870 Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus);
1871 Opts.TimeTrace = Args.hasArg(OPT_ftime_trace);
1872 Opts.TimeTraceGranularity = getLastArgIntValue(
1873 Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags);
1874 Opts.ShowVersion = Args.hasArg(OPT_version);
1875 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge);
1876 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
1877 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can);
1878 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings);
1879 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile);
1880 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp);
1881 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ);
1882 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ);
1883 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter);
1884 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups);
1885 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index);
1886 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex;
1887 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file);
1888 // Only the -fmodule-file=<file> form.
1889 for (const auto *A : Args.filtered(OPT_fmodule_file)) {
1890 StringRef Val = A->getValue();
1891 if (Val.find('=') == StringRef::npos)
1892 Opts.ModuleFiles.push_back(Val);
1894 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ);
1895 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files);
1896 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp);
1897 Opts.UseTemporary = !Args.hasArg(OPT_fno_temp_file);
1899 Opts.CodeCompleteOpts.IncludeMacros
1900 = Args.hasArg(OPT_code_completion_macros);
1901 Opts.CodeCompleteOpts.IncludeCodePatterns
1902 = Args.hasArg(OPT_code_completion_patterns);
1903 Opts.CodeCompleteOpts.IncludeGlobals
1904 = !Args.hasArg(OPT_no_code_completion_globals);
1905 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls
1906 = !Args.hasArg(OPT_no_code_completion_ns_level_decls);
1907 Opts.CodeCompleteOpts.IncludeBriefComments
1908 = Args.hasArg(OPT_code_completion_brief_comments);
1909 Opts.CodeCompleteOpts.IncludeFixIts
1910 = Args.hasArg(OPT_code_completion_with_fixits);
1912 Opts.OverrideRecordLayoutsFile
1913 = Args.getLastArgValue(OPT_foverride_record_layout_EQ);
1914 Opts.AuxTriple = Args.getLastArgValue(OPT_aux_triple);
1915 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file);
1917 if (const Arg *A = Args.getLastArg(OPT_arcmt_check,
1919 OPT_arcmt_migrate)) {
1920 switch (A->getOption().getID()) {
1922 llvm_unreachable("missed a case");
1923 case OPT_arcmt_check:
1924 Opts.ARCMTAction = FrontendOptions::ARCMT_Check;
1926 case OPT_arcmt_modify:
1927 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify;
1929 case OPT_arcmt_migrate:
1930 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate;
1934 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory);
1935 Opts.ARCMTMigrateReportOut
1936 = Args.getLastArgValue(OPT_arcmt_migrate_report_output);
1937 Opts.ARCMTMigrateEmitARCErrors
1938 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors);
1940 if (Args.hasArg(OPT_objcmt_migrate_literals))
1941 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals;
1942 if (Args.hasArg(OPT_objcmt_migrate_subscripting))
1943 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting;
1944 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax))
1945 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax;
1946 if (Args.hasArg(OPT_objcmt_migrate_property))
1947 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property;
1948 if (Args.hasArg(OPT_objcmt_migrate_readonly_property))
1949 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty;
1950 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property))
1951 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty;
1952 if (Args.hasArg(OPT_objcmt_migrate_annotation))
1953 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation;
1954 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property))
1955 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty;
1956 if (Args.hasArg(OPT_objcmt_migrate_instancetype))
1957 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype;
1958 if (Args.hasArg(OPT_objcmt_migrate_nsmacros))
1959 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros;
1960 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance))
1961 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance;
1962 if (Args.hasArg(OPT_objcmt_atomic_property))
1963 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty;
1964 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly))
1965 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty;
1966 if (Args.hasArg(OPT_objcmt_migrate_designated_init))
1967 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer;
1968 if (Args.hasArg(OPT_objcmt_migrate_all))
1969 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls;
1971 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path);
1973 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None &&
1974 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) {
1975 Diags.Report(diag::err_drv_argument_not_allowed_with)
1976 << "ARC migration" << "ObjC migration";
1979 InputKind DashX(Language::Unknown);
1980 if (const Arg *A = Args.getLastArg(OPT_x)) {
1981 StringRef XValue = A->getValue();
1983 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'.
1984 // FIXME: Supporting '<lang>-header-cpp-output' would be useful.
1985 bool Preprocessed = XValue.consume_back("-cpp-output");
1986 bool ModuleMap = XValue.consume_back("-module-map");
1988 !Preprocessed && !ModuleMap && XValue.consume_back("-header");
1990 // Principal languages.
1991 DashX = llvm::StringSwitch<InputKind>(XValue)
1992 .Case("c", Language::C)
1993 .Case("cl", Language::OpenCL)
1994 .Case("cuda", Language::CUDA)
1995 .Case("hip", Language::HIP)
1996 .Case("c++", Language::CXX)
1997 .Case("objective-c", Language::ObjC)
1998 .Case("objective-c++", Language::ObjCXX)
1999 .Case("renderscript", Language::RenderScript)
2000 .Default(Language::Unknown);
2002 // "objc[++]-cpp-output" is an acceptable synonym for
2003 // "objective-c[++]-cpp-output".
2004 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap)
2005 DashX = llvm::StringSwitch<InputKind>(XValue)
2006 .Case("objc", Language::ObjC)
2007 .Case("objc++", Language::ObjCXX)
2008 .Default(Language::Unknown);
2010 // Some special cases cannot be combined with suffixes.
2011 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile)
2012 DashX = llvm::StringSwitch<InputKind>(XValue)
2013 .Case("cpp-output", InputKind(Language::C).getPreprocessed())
2014 .Case("assembler-with-cpp", Language::Asm)
2015 .Cases("ast", "pcm",
2016 InputKind(Language::Unknown, InputKind::Precompiled))
2017 .Case("ir", Language::LLVM_IR)
2018 .Default(Language::Unknown);
2020 if (DashX.isUnknown())
2021 Diags.Report(diag::err_drv_invalid_value)
2022 << A->getAsString(Args) << A->getValue();
2025 DashX = DashX.getPreprocessed();
2027 DashX = DashX.withFormat(InputKind::ModuleMap);
2030 // '-' is the default input if none is given.
2031 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT);
2032 Opts.Inputs.clear();
2034 Inputs.push_back("-");
2035 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
2036 InputKind IK = DashX;
2037 if (IK.isUnknown()) {
2038 IK = FrontendOptions::getInputKindForExtension(
2039 StringRef(Inputs[i]).rsplit('.').second);
2040 // FIXME: Warn on this?
2043 // FIXME: Remove this hack.
2048 // The -emit-module action implicitly takes a module map.
2049 if (Opts.ProgramAction == frontend::GenerateModule &&
2050 IK.getFormat() == InputKind::Source)
2051 IK = IK.withFormat(InputKind::ModuleMap);
2053 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK);
2059 std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
2061 std::string ClangExecutable =
2062 llvm::sys::fs::getMainExecutable(Argv0, MainAddr);
2063 return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR);
2066 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args,
2067 const std::string &WorkingDir) {
2068 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/");
2069 Opts.Verbose = Args.hasArg(OPT_v);
2070 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
2071 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc);
2072 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
2073 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ))
2074 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0);
2075 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir);
2077 // Canonicalize -fmodules-cache-path before storing it.
2078 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path));
2079 if (!(P.empty() || llvm::sys::path::is_absolute(P))) {
2080 if (WorkingDir.empty())
2081 llvm::sys::fs::make_absolute(P);
2083 llvm::sys::fs::make_absolute(WorkingDir, P);
2085 llvm::sys::path::remove_dots(P);
2086 Opts.ModuleCachePath = P.str();
2088 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path);
2089 // Only the -fmodule-file=<name>=<file> form.
2090 for (const auto *A : Args.filtered(OPT_fmodule_file)) {
2091 StringRef Val = A->getValue();
2092 if (Val.find('=') != StringRef::npos)
2093 Opts.PrebuiltModuleFiles.insert(Val.split('='));
2095 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path))
2096 Opts.AddPrebuiltModulePath(A->getValue());
2097 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash);
2098 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content);
2099 Opts.ModulesStrictContextHash = Args.hasArg(OPT_fmodules_strict_context_hash);
2100 Opts.ModulesValidateDiagnosticOptions =
2101 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation);
2102 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps);
2103 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd);
2104 Opts.ModuleCachePruneInterval =
2105 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60);
2106 Opts.ModuleCachePruneAfter =
2107 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60);
2108 Opts.ModulesValidateOncePerBuildSession =
2109 Args.hasArg(OPT_fmodules_validate_once_per_build_session);
2110 Opts.BuildSessionTimestamp =
2111 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0);
2112 Opts.ModulesValidateSystemHeaders =
2113 Args.hasArg(OPT_fmodules_validate_system_headers);
2114 Opts.ValidateASTInputFilesContent =
2115 Args.hasArg(OPT_fvalidate_ast_input_files_content);
2116 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ))
2117 Opts.ModuleFormat = A->getValue();
2119 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) {
2120 StringRef MacroDef = A->getValue();
2121 Opts.ModulesIgnoreMacros.insert(
2122 llvm::CachedHashString(MacroDef.split('=').first));
2125 // Add -I..., -F..., and -index-header-map options in order.
2126 bool IsIndexHeaderMap = false;
2127 bool IsSysrootSpecified =
2128 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot);
2129 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) {
2130 if (A->getOption().matches(OPT_index_header_map)) {
2131 // -index-header-map applies to the next -I or -F.
2132 IsIndexHeaderMap = true;
2136 frontend::IncludeDirGroup Group =
2137 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled;
2139 bool IsFramework = A->getOption().matches(OPT_F);
2140 std::string Path = A->getValue();
2142 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') {
2143 SmallString<32> Buffer;
2144 llvm::sys::path::append(Buffer, Opts.Sysroot,
2145 llvm::StringRef(A->getValue()).substr(1));
2146 Path = Buffer.str();
2149 Opts.AddPath(Path, Group, IsFramework,
2150 /*IgnoreSysroot*/ true);
2151 IsIndexHeaderMap = false;
2154 // Add -iprefix/-iwithprefix/-iwithprefixbefore options.
2155 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
2156 for (const auto *A :
2157 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) {
2158 if (A->getOption().matches(OPT_iprefix))
2159 Prefix = A->getValue();
2160 else if (A->getOption().matches(OPT_iwithprefix))
2161 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true);
2163 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true);
2166 for (const auto *A : Args.filtered(OPT_idirafter))
2167 Opts.AddPath(A->getValue(), frontend::After, false, true);
2168 for (const auto *A : Args.filtered(OPT_iquote))
2169 Opts.AddPath(A->getValue(), frontend::Quoted, false, true);
2170 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot))
2171 Opts.AddPath(A->getValue(), frontend::System, false,
2172 !A->getOption().matches(OPT_iwithsysroot));
2173 for (const auto *A : Args.filtered(OPT_iframework))
2174 Opts.AddPath(A->getValue(), frontend::System, true, true);
2175 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot))
2176 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true,
2177 /*IgnoreSysRoot=*/false);
2179 // Add the paths for the various language specific isystem flags.
2180 for (const auto *A : Args.filtered(OPT_c_isystem))
2181 Opts.AddPath(A->getValue(), frontend::CSystem, false, true);
2182 for (const auto *A : Args.filtered(OPT_cxx_isystem))
2183 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true);
2184 for (const auto *A : Args.filtered(OPT_objc_isystem))
2185 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true);
2186 for (const auto *A : Args.filtered(OPT_objcxx_isystem))
2187 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true);
2189 // Add the internal paths from a driver that detects standard include paths.
2190 for (const auto *A :
2191 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) {
2192 frontend::IncludeDirGroup Group = frontend::System;
2193 if (A->getOption().matches(OPT_internal_externc_isystem))
2194 Group = frontend::ExternCSystem;
2195 Opts.AddPath(A->getValue(), Group, false, true);
2198 // Add the path prefixes which are implicitly treated as being system headers.
2199 for (const auto *A :
2200 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix))
2201 Opts.AddSystemHeaderPrefix(
2202 A->getValue(), A->getOption().matches(OPT_system_header_prefix));
2204 for (const auto *A : Args.filtered(OPT_ivfsoverlay))
2205 Opts.AddVFSOverlayFile(A->getValue());
2208 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK,
2209 const llvm::Triple &T,
2210 PreprocessorOptions &PPOpts,
2211 LangStandard::Kind LangStd) {
2212 // Set some properties which depend solely on the input kind; it would be nice
2213 // to move these to the language standard, and have the driver resolve the
2214 // input kind + language standard.
2216 // FIXME: Perhaps a better model would be for a single source file to have
2217 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std)
2218 // simultaneously active?
2219 if (IK.getLanguage() == Language::Asm) {
2220 Opts.AsmPreprocessor = 1;
2221 } else if (IK.isObjectiveC()) {
2225 if (LangStd == LangStandard::lang_unspecified) {
2226 // Based on the base language, pick one.
2227 switch (IK.getLanguage()) {
2228 case Language::Unknown:
2229 case Language::LLVM_IR:
2230 llvm_unreachable("Invalid input kind!");
2231 case Language::OpenCL:
2232 LangStd = LangStandard::lang_opencl10;
2234 case Language::CUDA:
2235 LangStd = LangStandard::lang_cuda;
2239 #if defined(CLANG_DEFAULT_STD_C)
2240 LangStd = CLANG_DEFAULT_STD_C;
2242 // The PS4 uses C99 as the default C standard.
2244 LangStd = LangStandard::lang_gnu99;
2246 LangStd = LangStandard::lang_gnu11;
2249 case Language::ObjC:
2250 #if defined(CLANG_DEFAULT_STD_C)
2251 LangStd = CLANG_DEFAULT_STD_C;
2253 LangStd = LangStandard::lang_gnu11;
2257 case Language::ObjCXX:
2258 #if defined(CLANG_DEFAULT_STD_CXX)
2259 LangStd = CLANG_DEFAULT_STD_CXX;
2261 LangStd = LangStandard::lang_gnucxx14;
2264 case Language::RenderScript:
2265 LangStd = LangStandard::lang_c99;
2268 LangStd = LangStandard::lang_hip;
2273 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
2274 Opts.LineComment = Std.hasLineComments();
2275 Opts.C99 = Std.isC99();
2276 Opts.C11 = Std.isC11();
2277 Opts.C17 = Std.isC17();
2278 Opts.C2x = Std.isC2x();
2279 Opts.CPlusPlus = Std.isCPlusPlus();
2280 Opts.CPlusPlus11 = Std.isCPlusPlus11();
2281 Opts.CPlusPlus14 = Std.isCPlusPlus14();
2282 Opts.CPlusPlus17 = Std.isCPlusPlus17();
2283 Opts.CPlusPlus2a = Std.isCPlusPlus2a();
2284 Opts.Digraphs = Std.hasDigraphs();
2285 Opts.GNUMode = Std.isGNUMode();
2286 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus;
2287 Opts.GNUCVersion = 0;
2288 Opts.HexFloats = Std.hasHexFloats();
2289 Opts.ImplicitInt = Std.hasImplicitInt();
2291 // Set OpenCL Version.
2292 Opts.OpenCL = Std.isOpenCL();
2293 if (LangStd == LangStandard::lang_opencl10)
2294 Opts.OpenCLVersion = 100;
2295 else if (LangStd == LangStandard::lang_opencl11)
2296 Opts.OpenCLVersion = 110;
2297 else if (LangStd == LangStandard::lang_opencl12)
2298 Opts.OpenCLVersion = 120;
2299 else if (LangStd == LangStandard::lang_opencl20)
2300 Opts.OpenCLVersion = 200;
2301 else if (LangStd == LangStandard::lang_openclcpp)
2302 Opts.OpenCLCPlusPlusVersion = 100;
2304 // OpenCL has some additional defaults.
2308 Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None);
2309 Opts.setDefaultFPContractMode(LangOptions::FPC_On);
2310 Opts.NativeHalfType = 1;
2311 Opts.NativeHalfArgsAndReturns = 1;
2312 Opts.OpenCLCPlusPlus = Opts.CPlusPlus;
2314 // Include default header file for OpenCL.
2315 if (Opts.IncludeDefaultHeader) {
2316 if (Opts.DeclareOpenCLBuiltins) {
2317 // Only include base header file for builtin types and constants.
2318 PPOpts.Includes.push_back("opencl-c-base.h");
2320 PPOpts.Includes.push_back("opencl-c.h");
2325 Opts.HIP = IK.getLanguage() == Language::HIP;
2326 Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP;
2328 // Set default FP_CONTRACT to FAST.
2329 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast);
2331 Opts.RenderScript = IK.getLanguage() == Language::RenderScript;
2332 if (Opts.RenderScript) {
2333 Opts.NativeHalfType = 1;
2334 Opts.NativeHalfArgsAndReturns = 1;
2337 // OpenCL and C++ both have bool, true, false keywords.
2338 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
2340 // OpenCL has half keyword
2341 Opts.Half = Opts.OpenCL;
2343 // C++ has wchar_t keyword.
2344 Opts.WChar = Opts.CPlusPlus;
2346 Opts.GNUKeywords = Opts.GNUMode;
2347 Opts.CXXOperatorNames = Opts.CPlusPlus;
2349 Opts.AlignedAllocation = Opts.CPlusPlus17;
2351 Opts.DollarIdents = !Opts.AsmPreprocessor;
2353 // Enable [[]] attributes in C++11 and C2x by default.
2354 Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x;
2357 /// Attempt to parse a visibility value out of the given argument.
2358 static Visibility parseVisibility(Arg *arg, ArgList &args,
2359 DiagnosticsEngine &diags) {
2360 StringRef value = arg->getValue();
2361 if (value == "default") {
2362 return DefaultVisibility;
2363 } else if (value == "hidden" || value == "internal") {
2364 return HiddenVisibility;
2365 } else if (value == "protected") {
2366 // FIXME: diagnose if target does not support protected visibility
2367 return ProtectedVisibility;
2370 diags.Report(diag::err_drv_invalid_value)
2371 << arg->getAsString(args) << value;
2372 return DefaultVisibility;
2375 /// Check if input file kind and language standard are compatible.
2376 static bool IsInputCompatibleWithStandard(InputKind IK,
2377 const LangStandard &S) {
2378 switch (IK.getLanguage()) {
2379 case Language::Unknown:
2380 case Language::LLVM_IR:
2381 llvm_unreachable("should not parse language flags for this input");
2384 case Language::ObjC:
2385 case Language::RenderScript:
2386 return S.getLanguage() == Language::C;
2388 case Language::OpenCL:
2389 return S.getLanguage() == Language::OpenCL;
2392 case Language::ObjCXX:
2393 return S.getLanguage() == Language::CXX;
2395 case Language::CUDA:
2396 // FIXME: What -std= values should be permitted for CUDA compilations?
2397 return S.getLanguage() == Language::CUDA ||
2398 S.getLanguage() == Language::CXX;
2401 return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP;
2404 // Accept (and ignore) all -std= values.
2405 // FIXME: The -std= value is not ignored; it affects the tokenization
2406 // and preprocessing rules if we're preprocessing this asm input.
2410 llvm_unreachable("unexpected input language");
2413 /// Get language name for given input kind.
2414 static const StringRef GetInputKindName(InputKind IK) {
2415 switch (IK.getLanguage()) {
2418 case Language::ObjC:
2419 return "Objective-C";
2422 case Language::ObjCXX:
2423 return "Objective-C++";
2424 case Language::OpenCL:
2426 case Language::CUDA:
2428 case Language::RenderScript:
2429 return "RenderScript";
2435 case Language::LLVM_IR:
2438 case Language::Unknown:
2441 llvm_unreachable("unknown input language");
2444 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
2445 const TargetOptions &TargetOpts,
2446 PreprocessorOptions &PPOpts,
2447 DiagnosticsEngine &Diags) {
2448 // FIXME: Cleanup per-file based stuff.
2449 LangStandard::Kind LangStd = LangStandard::lang_unspecified;
2450 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) {
2451 LangStd = LangStandard::getLangKind(A->getValue());
2452 if (LangStd == LangStandard::lang_unspecified) {
2453 Diags.Report(diag::err_drv_invalid_value)
2454 << A->getAsString(Args) << A->getValue();
2455 // Report supported standards with short description.
2456 for (unsigned KindValue = 0;
2457 KindValue != LangStandard::lang_unspecified;
2459 const LangStandard &Std = LangStandard::getLangStandardForKind(
2460 static_cast<LangStandard::Kind>(KindValue));
2461 if (IsInputCompatibleWithStandard(IK, Std)) {
2462 auto Diag = Diags.Report(diag::note_drv_use_standard);
2463 Diag << Std.getName() << Std.getDescription();
2464 unsigned NumAliases = 0;
2465 #define LANGSTANDARD(id, name, lang, desc, features)
2466 #define LANGSTANDARD_ALIAS(id, alias) \
2467 if (KindValue == LangStandard::lang_##id) ++NumAliases;
2468 #define LANGSTANDARD_ALIAS_DEPR(id, alias)
2469 #include "clang/Basic/LangStandards.def"
2471 #define LANGSTANDARD(id, name, lang, desc, features)
2472 #define LANGSTANDARD_ALIAS(id, alias) \
2473 if (KindValue == LangStandard::lang_##id) Diag << alias;
2474 #define LANGSTANDARD_ALIAS_DEPR(id, alias)
2475 #include "clang/Basic/LangStandards.def"
2479 // Valid standard, check to make sure language and standard are
2481 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
2482 if (!IsInputCompatibleWithStandard(IK, Std)) {
2483 Diags.Report(diag::err_drv_argument_not_allowed_with)
2484 << A->getAsString(Args) << GetInputKindName(IK);
2489 if (Args.hasArg(OPT_fno_dllexport_inlines))
2490 Opts.DllExportInlines = false;
2492 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) {
2493 StringRef Name = A->getValue();
2494 if (Name == "full" || Name == "branch") {
2495 Opts.CFProtectionBranch = 1;
2498 // -cl-std only applies for OpenCL language standards.
2499 // Override the -std option in this case.
2500 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) {
2501 LangStandard::Kind OpenCLLangStd
2502 = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
2503 .Cases("cl", "CL", LangStandard::lang_opencl10)
2504 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11)
2505 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12)
2506 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20)
2507 .Cases("clc++", "CLC++", LangStandard::lang_openclcpp)
2508 .Default(LangStandard::lang_unspecified);
2510 if (OpenCLLangStd == LangStandard::lang_unspecified) {
2511 Diags.Report(diag::err_drv_invalid_value)
2512 << A->getAsString(Args) << A->getValue();
2515 LangStd = OpenCLLangStd;
2518 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header);
2519 Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins);
2521 llvm::Triple T(TargetOpts.Triple);
2522 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd);
2524 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0.
2525 // This option should be deprecated for CL > 1.0 because
2526 // this option was added for compatibility with OpenCL 1.0.
2527 if (Args.getLastArg(OPT_cl_strict_aliasing)
2528 && Opts.OpenCLVersion > 100) {
2529 Diags.Report(diag::warn_option_invalid_ocl_version)
2530 << Opts.getOpenCLVersionTuple().getAsString()
2531 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args);
2534 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension
2535 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag,
2536 // while a subset (the non-C++ GNU keywords) is provided by GCC's
2537 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single
2538 // name, as it doesn't seem a useful distinction.
2539 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords,
2542 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs);
2544 if (Args.hasArg(OPT_fno_operator_names))
2545 Opts.CXXOperatorNames = 0;
2547 if (Args.hasArg(OPT_fcuda_is_device))
2548 Opts.CUDAIsDevice = 1;
2550 if (Args.hasArg(OPT_fcuda_allow_variadic_functions))
2551 Opts.CUDAAllowVariadicFunctions = 1;
2553 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr))
2554 Opts.CUDAHostDeviceConstexpr = 0;
2556 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals))
2557 Opts.CUDADeviceApproxTranscendentals = 1;
2559 Opts.GPURelocatableDeviceCode = Args.hasArg(OPT_fgpu_rdc);
2560 if (Args.hasArg(OPT_fgpu_allow_device_init)) {
2562 Opts.GPUAllowDeviceInit = 1;
2564 Diags.Report(diag::warn_ignored_hip_only_option)
2565 << Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args);
2567 Opts.HIPUseNewLaunchAPI = Args.hasArg(OPT_fhip_new_launch_api);
2569 Opts.GPUMaxThreadsPerBlock = getLastArgIntValue(
2570 Args, OPT_gpu_max_threads_per_block_EQ, Opts.GPUMaxThreadsPerBlock);
2571 else if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ))
2572 Diags.Report(diag::warn_ignored_hip_only_option)
2573 << Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args);
2576 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) {
2577 StringRef value = arg->getValue();
2578 if (Opts.ObjCRuntime.tryParse(value))
2579 Diags.Report(diag::err_drv_unknown_objc_runtime) << value;
2582 if (Args.hasArg(OPT_fobjc_gc_only))
2583 Opts.setGC(LangOptions::GCOnly);
2584 else if (Args.hasArg(OPT_fobjc_gc))
2585 Opts.setGC(LangOptions::HybridGC);
2586 else if (Args.hasArg(OPT_fobjc_arc)) {
2587 Opts.ObjCAutoRefCount = 1;
2588 if (!Opts.ObjCRuntime.allowsARC())
2589 Diags.Report(diag::err_arc_unsupported_on_runtime);
2592 // ObjCWeakRuntime tracks whether the runtime supports __weak, not
2593 // whether the feature is actually enabled. This is predominantly
2594 // determined by -fobjc-runtime, but we allow it to be overridden
2595 // from the command line for testing purposes.
2596 if (Args.hasArg(OPT_fobjc_runtime_has_weak))
2597 Opts.ObjCWeakRuntime = 1;
2599 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak();
2601 // ObjCWeak determines whether __weak is actually enabled.
2602 // Note that we allow -fno-objc-weak to disable this even in ARC mode.
2603 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) {
2604 if (!weakArg->getOption().matches(OPT_fobjc_weak)) {
2605 assert(!Opts.ObjCWeak);
2606 } else if (Opts.getGC() != LangOptions::NonGC) {
2607 Diags.Report(diag::err_objc_weak_with_gc);
2608 } else if (!Opts.ObjCWeakRuntime) {
2609 Diags.Report(diag::err_objc_weak_unsupported);
2613 } else if (Opts.ObjCAutoRefCount) {
2614 Opts.ObjCWeak = Opts.ObjCWeakRuntime;
2617 if (Args.hasArg(OPT_fno_objc_infer_related_result_type))
2618 Opts.ObjCInferRelatedResultType = 0;
2620 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime))
2621 Opts.ObjCSubscriptingLegacyRuntime =
2622 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX);
2625 if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) {
2626 // Check that the version has 1 to 3 components and the minor and patch
2627 // versions fit in two decimal digits.
2628 VersionTuple GNUCVer;
2629 bool Invalid = GNUCVer.tryParse(A->getValue());
2630 unsigned Major = GNUCVer.getMajor();
2631 unsigned Minor = GNUCVer.getMinor().getValueOr(0);
2632 unsigned Patch = GNUCVer.getSubminor().getValueOr(0);
2633 if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) {
2634 Diags.Report(diag::err_drv_invalid_value)
2635 << A->getAsString(Args) << A->getValue();
2637 Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch;
2640 if (Args.hasArg(OPT_fgnu89_inline)) {
2642 Diags.Report(diag::err_drv_argument_not_allowed_with)
2643 << "-fgnu89-inline" << GetInputKindName(IK);
2648 if (Args.hasArg(OPT_fapple_kext)) {
2649 if (!Opts.CPlusPlus)
2650 Diags.Report(diag::warn_c_kext);
2655 if (Args.hasArg(OPT_print_ivar_layout))
2656 Opts.ObjCGCBitmapPrint = 1;
2658 if (Args.hasArg(OPT_fno_constant_cfstrings))
2659 Opts.NoConstantCFStrings = 1;
2660 if (const auto *A = Args.getLastArg(OPT_fcf_runtime_abi_EQ))
2662 llvm::StringSwitch<LangOptions::CoreFoundationABI>(A->getValue())
2663 .Cases("unspecified", "standalone", "objc",
2664 LangOptions::CoreFoundationABI::ObjectiveC)
2665 .Cases("swift", "swift-5.0",
2666 LangOptions::CoreFoundationABI::Swift5_0)
2667 .Case("swift-4.2", LangOptions::CoreFoundationABI::Swift4_2)
2668 .Case("swift-4.1", LangOptions::CoreFoundationABI::Swift4_1)
2669 .Default(LangOptions::CoreFoundationABI::ObjectiveC);
2671 if (Args.hasArg(OPT_fzvector))
2674 if (Args.hasArg(OPT_pthread))
2675 Opts.POSIXThreads = 1;
2677 // The value-visibility mode defaults to "default".
2678 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) {
2679 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags));
2681 Opts.setValueVisibilityMode(DefaultVisibility);
2684 // The type-visibility mode defaults to the value-visibility mode.
2685 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) {
2686 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags));
2688 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode());
2691 if (Args.hasArg(OPT_fvisibility_inlines_hidden))
2692 Opts.InlineVisibilityHidden = 1;
2694 if (Args.hasArg(OPT_fvisibility_global_new_delete_hidden))
2695 Opts.GlobalAllocationFunctionVisibilityHidden = 1;
2697 if (Args.hasArg(OPT_fapply_global_visibility_to_externs))
2698 Opts.SetVisibilityForExternDecls = 1;
2700 if (Args.hasArg(OPT_ftrapv)) {
2701 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
2702 // Set the handler, if one is specified.
2703 Opts.OverflowHandler =
2704 Args.getLastArgValue(OPT_ftrapv_handler);
2706 else if (Args.hasArg(OPT_fwrapv))
2707 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
2709 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility);
2710 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions);
2711 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt;
2712 Opts.MSCompatibilityVersion = 0;
2713 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) {
2715 if (VT.tryParse(A->getValue()))
2716 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
2718 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 +
2719 VT.getMinor().getValueOr(0) * 100000 +
2720 VT.getSubminor().getValueOr(0);
2723 // Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs
2724 // is specified, or -std is set to a conforming mode.
2725 // Trigraphs are disabled by default in c++1z onwards.
2726 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17;
2728 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs);
2730 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers,
2731 OPT_fno_dollars_in_identifiers,
2733 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
2734 Opts.setVtorDispMode(
2735 MSVtorDispMode(getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags)));
2736 Opts.Borland = Args.hasArg(OPT_fborland_extensions);
2737 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings);
2738 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings,
2740 if (Arg *A = Args.getLastArg(OPT_flax_vector_conversions_EQ)) {
2741 using LaxKind = LangOptions::LaxVectorConversionKind;
2742 if (auto Kind = llvm::StringSwitch<Optional<LaxKind>>(A->getValue())
2743 .Case("none", LaxKind::None)
2744 .Case("integer", LaxKind::Integer)
2745 .Case("all", LaxKind::All)
2746 .Default(llvm::None))
2747 Opts.setLaxVectorConversions(*Kind);
2749 Diags.Report(diag::err_drv_invalid_value)
2750 << A->getAsString(Args) << A->getValue();
2752 if (Args.hasArg(OPT_fno_threadsafe_statics))
2753 Opts.ThreadsafeStatics = 0;
2754 Opts.Exceptions = Args.hasArg(OPT_fexceptions);
2755 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions);
2756 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions);
2760 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) &&
2762 Opts.PaddingOnUnsignedFixedPoint =
2763 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point,
2764 OPT_fno_padding_on_unsigned_fixed_point,
2765 /*Default=*/false) &&
2768 // Handle exception personalities
2769 Arg *A = Args.getLastArg(
2770 options::OPT_fsjlj_exceptions, options::OPT_fseh_exceptions,
2771 options::OPT_fdwarf_exceptions, options::OPT_fwasm_exceptions);
2773 const Option &Opt = A->getOption();
2774 llvm::Triple T(TargetOpts.Triple);
2775 if (T.isWindowsMSVCEnvironment())
2776 Diags.Report(diag::err_fe_invalid_exception_model)
2777 << Opt.getName() << T.str();
2779 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions);
2780 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions);
2781 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions);
2782 Opts.WasmExceptions = Opt.matches(options::OPT_fwasm_exceptions);
2785 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind);
2786 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp);
2788 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti);
2789 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data);
2790 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL
2791 && Opts.OpenCLVersion == 200);
2792 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional);
2793 Opts.Coroutines = Opts.CPlusPlus2a || Args.hasArg(OPT_fcoroutines_ts);
2795 Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) ||
2796 Args.hasArg(OPT_fconvergent_functions);
2798 Opts.DoubleSquareBracketAttributes =
2799 Args.hasFlag(OPT_fdouble_square_bracket_attributes,
2800 OPT_fno_double_square_bracket_attributes,
2801 Opts.DoubleSquareBracketAttributes);
2803 Opts.CPlusPlusModules = Opts.CPlusPlus2a;
2804 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts);
2806 Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules;
2807 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse);
2808 Opts.ModulesDeclUse =
2809 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse;
2810 // FIXME: We only need this in C++ modules / Modules TS if we might textually
2811 // enter a different module (eg, when building a header unit).
2812 Opts.ModulesLocalVisibility =
2813 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS ||
2814 Opts.CPlusPlusModules;
2815 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen);
2816 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo);
2817 Opts.ModulesSearchAll = Opts.Modules &&
2818 !Args.hasArg(OPT_fno_modules_search_all) &&
2819 Args.hasArg(OPT_fmodules_search_all);
2820 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery);
2821 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules);
2822 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char);
2823 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar);
2824 Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus2a);
2825 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) {
2826 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue())
2831 if (Opts.WCharSize == 0)
2832 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue();
2834 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true);
2835 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums);
2836 Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
2837 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
2838 if (!Opts.NoBuiltin)
2839 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs);
2840 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin);
2841 Opts.RelaxedTemplateTemplateArgs =
2842 Args.hasArg(OPT_frelaxed_template_template_args);
2843 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation);
2844 Opts.AlignedAllocation =
2845 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation,
2846 Opts.AlignedAllocation);
2847 Opts.AlignedAllocationUnavailable =
2848 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable);
2849 Opts.NewAlignOverride =
2850 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags);
2851 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) {
2852 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ);
2853 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args)
2855 Opts.NewAlignOverride = 0;
2857 Opts.ConceptSatisfactionCaching =
2858 !Args.hasArg(OPT_fno_concept_satisfaction_caching);
2859 if (Args.hasArg(OPT_fconcepts_ts))
2860 Diags.Report(diag::warn_fe_concepts_ts_flag);
2861 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions);
2862 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control);
2863 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
2864 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno);
2865 Opts.InstantiationDepth =
2866 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags);
2868 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags);
2869 Opts.ConstexprCallDepth =
2870 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags);
2871 Opts.ConstexprStepLimit =
2872 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags);
2873 Opts.EnableNewConstInterp =
2874 Args.hasArg(OPT_fexperimental_new_constant_interpreter);
2875 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags);
2876 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing);
2877 Opts.NumLargeByValueCopy =
2878 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags);
2879 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields);
2880 Opts.ObjCConstantStringClass =
2881 Args.getLastArgValue(OPT_fconstant_string_class);
2882 Opts.ObjCDefaultSynthProperties =
2883 !Args.hasArg(OPT_disable_objc_default_synthesize_properties);
2884 Opts.EncodeExtendedBlockSig =
2885 Args.hasArg(OPT_fencode_extended_block_signature);
2886 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls);
2887 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags);
2888 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags);
2889 Opts.AlignDouble = Args.hasArg(OPT_malign_double);
2890 Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128)
2892 : Args.hasArg(OPT_mlong_double_64) ? 64 : 0;
2893 Opts.PPCIEEELongDouble = Args.hasArg(OPT_mabi_EQ_ieeelongdouble);
2894 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
2895 Opts.ROPI = Args.hasArg(OPT_fropi);
2896 Opts.RWPI = Args.hasArg(OPT_frwpi);
2897 Opts.PIE = Args.hasArg(OPT_pic_is_pie);
2898 Opts.Static = Args.hasArg(OPT_static_define);
2899 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple);
2900 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple
2901 || Args.hasArg(OPT_fdump_record_layouts);
2902 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts);
2903 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking);
2904 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align);
2905 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant);
2906 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math);
2907 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat);
2908 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map);
2909 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype);
2910 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support);
2911 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id);
2912 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal);
2913 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack);
2914 Opts.ModuleName = Args.getLastArgValue(OPT_fmodule_name_EQ);
2915 Opts.CurrentModule = Opts.ModuleName;
2916 Opts.AppExt = Args.hasArg(OPT_fapplication_extension);
2917 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature);
2918 llvm::sort(Opts.ModuleFeatures);
2919 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type);
2920 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns);
2921 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns
2923 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns)
2924 | Opts.NativeHalfArgsAndReturns;
2925 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm);
2926 Opts.Cmse = Args.hasArg(OPT_mcmse); // Armv8-M Security Extensions
2928 // __declspec is enabled by default for the PS4 by the driver, and also
2929 // enabled for Microsoft Extensions or Borland Extensions, here.
2931 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a
2932 // CUDA extension. However, it is required for supporting
2933 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has
2934 // been rewritten in terms of something more generic, remove the Opts.CUDA
2936 Opts.DeclSpecKeyword =
2937 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec,
2938 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA));
2940 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) {
2941 switch (llvm::StringSwitch<unsigned>(A->getValue())
2942 .Case("target", LangOptions::ASMM_Target)
2943 .Case("no", LangOptions::ASMM_Off)
2944 .Case("yes", LangOptions::ASMM_On)
2947 Diags.Report(diag::err_drv_invalid_value)
2948 << "-faddress-space-map-mangling=" << A->getValue();
2950 case LangOptions::ASMM_Target:
2951 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target);
2953 case LangOptions::ASMM_On:
2954 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On);
2956 case LangOptions::ASMM_Off:
2957 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off);
2962 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) {
2963 LangOptions::PragmaMSPointersToMembersKind InheritanceModel =
2964 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>(
2967 LangOptions::PPTMK_FullGeneralitySingleInheritance)
2969 LangOptions::PPTMK_FullGeneralityMultipleInheritance)
2971 LangOptions::PPTMK_FullGeneralityVirtualInheritance)
2972 .Default(LangOptions::PPTMK_BestCase);
2973 if (InheritanceModel == LangOptions::PPTMK_BestCase)
2974 Diags.Report(diag::err_drv_invalid_value)
2975 << "-fms-memptr-rep=" << A->getValue();
2977 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel);
2980 // Check for MS default calling conventions being specified.
2981 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) {
2982 LangOptions::DefaultCallingConvention DefaultCC =
2983 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue())
2984 .Case("cdecl", LangOptions::DCC_CDecl)
2985 .Case("fastcall", LangOptions::DCC_FastCall)
2986 .Case("stdcall", LangOptions::DCC_StdCall)
2987 .Case("vectorcall", LangOptions::DCC_VectorCall)
2988 .Case("regcall", LangOptions::DCC_RegCall)
2989 .Default(LangOptions::DCC_None);
2990 if (DefaultCC == LangOptions::DCC_None)
2991 Diags.Report(diag::err_drv_invalid_value)
2992 << "-fdefault-calling-conv=" << A->getValue();
2994 llvm::Triple T(TargetOpts.Triple);
2995 llvm::Triple::ArchType Arch = T.getArch();
2996 bool emitError = (DefaultCC == LangOptions::DCC_FastCall ||
2997 DefaultCC == LangOptions::DCC_StdCall) &&
2998 Arch != llvm::Triple::x86;
2999 emitError |= (DefaultCC == LangOptions::DCC_VectorCall ||
3000 DefaultCC == LangOptions::DCC_RegCall) &&
3003 Diags.Report(diag::err_drv_argument_not_allowed_with)
3004 << A->getSpelling() << T.getTriple();
3006 Opts.setDefaultCallingConv(DefaultCC);
3010 if (Arg *A = Args.getLastArg(OPT_mrtd)) {
3011 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None)
3012 Diags.Report(diag::err_drv_argument_not_allowed_with)
3013 << A->getSpelling() << "-fdefault-calling-conv";
3015 llvm::Triple T(TargetOpts.Triple);
3016 if (T.getArch() != llvm::Triple::x86)
3017 Diags.Report(diag::err_drv_argument_not_allowed_with)
3018 << A->getSpelling() << T.getTriple();
3020 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall);
3024 // Check if -fopenmp is specified and set default version to 4.5.
3025 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 45 : 0;
3026 // Check if -fopenmp-simd is specified.
3027 bool IsSimdSpecified =
3028 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd,
3030 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified;
3032 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls);
3033 Opts.OpenMPIsDevice =
3034 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device);
3035 Opts.OpenMPIRBuilder =
3036 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder);
3037 bool IsTargetSpecified =
3038 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ);
3040 if (Opts.OpenMP || Opts.OpenMPSimd) {
3041 if (int Version = getLastArgIntValue(
3042 Args, OPT_fopenmp_version_EQ,
3043 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags))
3044 Opts.OpenMP = Version;
3045 else if (IsSimdSpecified || IsTargetSpecified)
3047 // Provide diagnostic when a given target is not expected to be an OpenMP
3049 if (!Opts.OpenMPIsDevice) {
3050 switch (T.getArch()) {
3053 // Add unsupported host targets here:
3054 case llvm::Triple::nvptx:
3055 case llvm::Triple::nvptx64:
3056 Diags.Report(diag::err_drv_omp_host_target_not_supported)
3057 << TargetOpts.Triple;
3063 // Set the flag to prevent the implementation from emitting device exception
3064 // handling code for those requiring so.
3065 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) {
3066 Opts.Exceptions = 0;
3067 Opts.CXXExceptions = 0;
3069 if (Opts.OpenMPIsDevice && T.isNVPTX()) {
3070 Opts.OpenMPCUDANumSMs =
3071 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ,
3072 Opts.OpenMPCUDANumSMs, Diags);
3073 Opts.OpenMPCUDABlocksPerSM =
3074 getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ,
3075 Opts.OpenMPCUDABlocksPerSM, Diags);
3076 Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue(
3077 Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ,
3078 Opts.OpenMPCUDAReductionBufNum, Diags);
3081 // Prevent auto-widening the representation of loop counters during an
3082 // OpenMP collapse clause.
3083 Opts.OpenMPOptimisticCollapse =
3084 Args.hasArg(options::OPT_fopenmp_optimistic_collapse) ? 1 : 0;
3086 // Get the OpenMP target triples if any.
3087 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) {
3089 for (unsigned i = 0; i < A->getNumValues(); ++i) {
3090 llvm::Triple TT(A->getValue(i));
3092 if (TT.getArch() == llvm::Triple::UnknownArch ||
3093 !(TT.getArch() == llvm::Triple::aarch64 ||
3094 TT.getArch() == llvm::Triple::ppc ||
3095 TT.getArch() == llvm::Triple::ppc64 ||
3096 TT.getArch() == llvm::Triple::ppc64le ||
3097 TT.getArch() == llvm::Triple::nvptx ||
3098 TT.getArch() == llvm::Triple::nvptx64 ||
3099 TT.getArch() == llvm::Triple::x86 ||
3100 TT.getArch() == llvm::Triple::x86_64))
3101 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i);
3103 Opts.OMPTargetTriples.push_back(TT);
3107 // Get OpenMP host file path if any and report if a non existent file is
3109 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) {
3110 Opts.OMPHostIRFile = A->getValue();
3111 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile))
3112 Diags.Report(diag::err_drv_omp_host_ir_file_not_found)
3113 << Opts.OMPHostIRFile;
3116 Opts.SYCLIsDevice = Args.hasArg(options::OPT_fsycl_is_device);
3118 // Set CUDA mode for OpenMP target NVPTX if specified in options
3119 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() &&
3120 Args.hasArg(options::OPT_fopenmp_cuda_mode);
3122 // Set CUDA mode for OpenMP target NVPTX if specified in options
3123 Opts.OpenMPCUDAForceFullRuntime =
3124 Opts.OpenMPIsDevice && T.isNVPTX() &&
3125 Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime);
3127 // Record whether the __DEPRECATED define was requested.
3128 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro,
3129 OPT_fno_deprecated_macro,
3132 // FIXME: Eliminate this dependency.
3133 unsigned Opt = getOptimizationLevel(Args, IK, Diags),
3134 OptSize = getOptimizationLevelSize(Args);
3135 Opts.Optimize = Opt != 0;
3136 Opts.OptimizeSize = OptSize != 0;
3138 // This is the __NO_INLINE__ define, which just depends on things like the
3139 // optimization level and -fno-inline, not actually whether the backend has
3140 // inlining enabled.
3141 Opts.NoInlineDefine = !Opts.Optimize;
3142 if (Arg *InlineArg = Args.getLastArg(
3143 options::OPT_finline_functions, options::OPT_finline_hint_functions,
3144 options::OPT_fno_inline_functions, options::OPT_fno_inline))
3145 if (InlineArg->getOption().matches(options::OPT_fno_inline))
3146 Opts.NoInlineDefine = true;
3148 Opts.FastMath = Args.hasArg(OPT_ffast_math) ||
3149 Args.hasArg(OPT_cl_fast_relaxed_math);
3150 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) ||
3151 Args.hasArg(OPT_cl_finite_math_only) ||
3152 Args.hasArg(OPT_cl_fast_relaxed_math);
3153 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
3154 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
3155 Args.hasArg(OPT_cl_fast_relaxed_math);
3157 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) {
3158 StringRef Val = A->getValue();
3160 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast);
3161 else if (Val == "on")
3162 Opts.setDefaultFPContractMode(LangOptions::FPC_On);
3163 else if (Val == "off")
3164 Opts.setDefaultFPContractMode(LangOptions::FPC_Off);
3166 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
3169 LangOptions::FPRoundingModeKind FPRM = LangOptions::FPR_ToNearest;
3170 if (Args.hasArg(OPT_frounding_math)) {
3171 FPRM = LangOptions::FPR_Dynamic;
3173 Opts.setFPRoundingMode(FPRM);
3175 if (Args.hasArg(OPT_ftrapping_math)) {
3176 Opts.setFPExceptionMode(LangOptions::FPE_Strict);
3179 if (Args.hasArg(OPT_fno_trapping_math)) {
3180 Opts.setFPExceptionMode(LangOptions::FPE_Ignore);
3183 LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore;
3184 if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) {
3185 StringRef Val = A->getValue();
3186 if (Val.equals("ignore"))
3187 FPEB = LangOptions::FPE_Ignore;
3188 else if (Val.equals("maytrap"))
3189 FPEB = LangOptions::FPE_MayTrap;
3190 else if (Val.equals("strict"))
3191 FPEB = LangOptions::FPE_Strict;
3193 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
3195 Opts.setFPExceptionMode(FPEB);
3197 Opts.RetainCommentsFromSystemHeaders =
3198 Args.hasArg(OPT_fretain_comments_from_system_headers);
3200 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags);
3203 Diags.Report(diag::err_drv_invalid_value)
3204 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP;
3206 case 0: Opts.setStackProtector(LangOptions::SSPOff); break;
3207 case 1: Opts.setStackProtector(LangOptions::SSPOn); break;
3208 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break;
3209 case 3: Opts.setStackProtector(LangOptions::SSPReq); break;
3212 if (Arg *A = Args.getLastArg(OPT_ftrivial_auto_var_init)) {
3213 StringRef Val = A->getValue();
3214 if (Val == "uninitialized")
3215 Opts.setTrivialAutoVarInit(
3216 LangOptions::TrivialAutoVarInitKind::Uninitialized);
3217 else if (Val == "zero")
3218 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Zero);
3219 else if (Val == "pattern")
3220 Opts.setTrivialAutoVarInit(LangOptions::TrivialAutoVarInitKind::Pattern);
3222 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
3225 // Parse -fsanitize= arguments.
3226 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
3227 Diags, Opts.Sanitize);
3228 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here.
3229 Opts.SanitizeAddressFieldPadding =
3230 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags);
3231 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist);
3232 std::vector<std::string> systemBlacklists =
3233 Args.getAllArgValues(OPT_fsanitize_system_blacklist);
3234 Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(),
3235 systemBlacklists.begin(),
3236 systemBlacklists.end());
3238 // -fxray-instrument
3239 Opts.XRayInstrument =
3240 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false);
3242 // -fxray-always-emit-customevents
3243 Opts.XRayAlwaysEmitCustomEvents =
3244 Args.hasFlag(OPT_fxray_always_emit_customevents,
3245 OPT_fnoxray_always_emit_customevents, false);
3247 // -fxray-always-emit-typedevents
3248 Opts.XRayAlwaysEmitTypedEvents =
3249 Args.hasFlag(OPT_fxray_always_emit_typedevents,
3250 OPT_fnoxray_always_emit_customevents, false);
3252 // -fxray-{always,never}-instrument= filenames.
3253 Opts.XRayAlwaysInstrumentFiles =
3254 Args.getAllArgValues(OPT_fxray_always_instrument);
3255 Opts.XRayNeverInstrumentFiles =
3256 Args.getAllArgValues(OPT_fxray_never_instrument);
3257 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list);
3259 // -fforce-emit-vtables
3260 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables);
3262 // -fallow-editor-placeholders
3263 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders);
3265 Opts.RegisterStaticDestructors = !Args.hasArg(OPT_fno_cxx_static_destructors);
3267 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) {
3268 Opts.setClangABICompat(LangOptions::ClangABI::Latest);
3270 StringRef Ver = A->getValue();
3271 std::pair<StringRef, StringRef> VerParts = Ver.split('.');
3272 unsigned Major, Minor = 0;
3274 // Check the version number is valid: either 3.x (0 <= x <= 9) or
3275 // y or y.0 (4 <= y <= current version).
3276 if (!VerParts.first.startswith("0") &&
3277 !VerParts.first.getAsInteger(10, Major) &&
3278 3 <= Major && Major <= CLANG_VERSION_MAJOR &&
3279 (Major == 3 ? VerParts.second.size() == 1 &&
3280 !VerParts.second.getAsInteger(10, Minor)
3281 : VerParts.first.size() == Ver.size() ||
3282 VerParts.second == "0")) {
3283 // Got a valid version number.
3284 if (Major == 3 && Minor <= 8)
3285 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8);
3286 else if (Major <= 4)
3287 Opts.setClangABICompat(LangOptions::ClangABI::Ver4);
3288 else if (Major <= 6)
3289 Opts.setClangABICompat(LangOptions::ClangABI::Ver6);
3290 else if (Major <= 7)
3291 Opts.setClangABICompat(LangOptions::ClangABI::Ver7);
3292 else if (Major <= 9)
3293 Opts.setClangABICompat(LangOptions::ClangABI::Ver9);
3294 } else if (Ver != "latest") {
3295 Diags.Report(diag::err_drv_invalid_value)
3296 << A->getAsString(Args) << A->getValue();
3300 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers);
3301 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj);
3304 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) {
3306 case frontend::ASTDeclList:
3307 case frontend::ASTDump:
3308 case frontend::ASTPrint:
3309 case frontend::ASTView:
3310 case frontend::EmitAssembly:
3311 case frontend::EmitBC:
3312 case frontend::EmitHTML:
3313 case frontend::EmitLLVM:
3314 case frontend::EmitLLVMOnly:
3315 case frontend::EmitCodeGenOnly:
3316 case frontend::EmitObj:
3317 case frontend::FixIt:
3318 case frontend::GenerateModule:
3319 case frontend::GenerateModuleInterface:
3320 case frontend::GenerateHeaderModule:
3321 case frontend::GeneratePCH:
3322 case frontend::GenerateInterfaceIfsExpV1:
3323 case frontend::ParseSyntaxOnly:
3324 case frontend::ModuleFileInfo:
3325 case frontend::VerifyPCH:
3326 case frontend::PluginAction:
3327 case frontend::RewriteObjC:
3328 case frontend::RewriteTest:
3329 case frontend::RunAnalysis:
3330 case frontend::TemplightDump:
3331 case frontend::MigrateSource:
3334 case frontend::DumpCompilerOptions:
3335 case frontend::DumpRawTokens:
3336 case frontend::DumpTokens:
3337 case frontend::InitOnly:
3338 case frontend::PrintPreamble:
3339 case frontend::PrintPreprocessedInput:
3340 case frontend::RewriteMacros:
3341 case frontend::RunPreprocessorOnly:
3342 case frontend::PrintDependencyDirectivesSourceMinimizerOutput:
3345 llvm_unreachable("invalid frontend action");
3348 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
3349 DiagnosticsEngine &Diags,
3350 frontend::ActionKind Action) {
3351 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch);
3352 Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) ||
3353 Args.hasArg(OPT_pch_through_hdrstop_use);
3354 Opts.PCHWithHdrStopCreate = Args.hasArg(OPT_pch_through_hdrstop_create);
3355 Opts.PCHThroughHeader = Args.getLastArgValue(OPT_pch_through_header_EQ);
3356 Opts.UsePredefines = !Args.hasArg(OPT_undef);
3357 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record);
3358 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch);
3359 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors);
3361 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls);
3362 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl))
3363 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue());
3365 for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ))
3366 Opts.MacroPrefixMap.insert(StringRef(A).split('='));
3368 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) {
3369 StringRef Value(A->getValue());
3370 size_t Comma = Value.find(',');
3372 unsigned EndOfLine = 0;
3374 if (Comma == StringRef::npos ||
3375 Value.substr(0, Comma).getAsInteger(10, Bytes) ||
3376 Value.substr(Comma + 1).getAsInteger(10, EndOfLine))
3377 Diags.Report(diag::err_drv_preamble_format);
3379 Opts.PrecompiledPreambleBytes.first = Bytes;
3380 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0);
3384 // Add the __CET__ macro if a CFProtection option is set.
3385 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) {
3386 StringRef Name = A->getValue();
3387 if (Name == "branch")
3388 Opts.addMacroDef("__CET__=1");
3389 else if (Name == "return")
3390 Opts.addMacroDef("__CET__=2");
3391 else if (Name == "full")
3392 Opts.addMacroDef("__CET__=3");
3395 // Add macros from the command line.
3396 for (const auto *A : Args.filtered(OPT_D, OPT_U)) {
3397 if (A->getOption().matches(OPT_D))
3398 Opts.addMacroDef(A->getValue());
3400 Opts.addMacroUndef(A->getValue());
3403 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros);
3405 // Add the ordered list of -includes.
3406 for (const auto *A : Args.filtered(OPT_include))
3407 Opts.Includes.emplace_back(A->getValue());
3409 for (const auto *A : Args.filtered(OPT_chain_include))
3410 Opts.ChainedIncludes.emplace_back(A->getValue());
3412 for (const auto *A : Args.filtered(OPT_remap_file)) {
3413 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';');
3415 if (Split.second.empty()) {
3416 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args);
3420 Opts.addRemappedFile(Split.first, Split.second);
3423 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) {
3424 StringRef Name = A->getValue();
3425 unsigned Library = llvm::StringSwitch<unsigned>(Name)
3426 .Case("libc++", ARCXX_libcxx)
3427 .Case("libstdc++", ARCXX_libstdcxx)
3428 .Case("none", ARCXX_nolib)
3431 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
3433 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library;
3436 // Always avoid lexing editor placeholders when we're just running the
3437 // preprocessor as we never want to emit the
3438 // "editor placeholder in source file" error in PP only mode.
3439 if (isStrictlyPreprocessorAction(Action))
3440 Opts.LexEditorPlaceholders = false;
3442 Opts.SetUpStaticAnalyzer = Args.hasArg(OPT_setup_static_analyzer);
3443 Opts.DisablePragmaDebugCrash = Args.hasArg(OPT_disable_pragma_debug_crash);
3446 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
3448 frontend::ActionKind Action) {
3449 if (isStrictlyPreprocessorAction(Action))
3450 Opts.ShowCPP = !Args.hasArg(OPT_dM);
3454 Opts.ShowComments = Args.hasArg(OPT_C);
3455 Opts.ShowLineMarkers = !Args.hasArg(OPT_P);
3456 Opts.ShowMacroComments = Args.hasArg(OPT_CC);
3457 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD);
3458 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI);
3459 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes);
3460 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports);
3461 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives);
3464 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args,
3465 DiagnosticsEngine &Diags) {
3466 Opts.CodeModel = getCodeModel(Args, Diags);
3467 Opts.ABI = Args.getLastArgValue(OPT_target_abi);
3468 if (Arg *A = Args.getLastArg(OPT_meabi)) {
3469 StringRef Value = A->getValue();
3470 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value)
3471 .Case("default", llvm::EABI::Default)
3472 .Case("4", llvm::EABI::EABI4)
3473 .Case("5", llvm::EABI::EABI5)
3474 .Case("gnu", llvm::EABI::GNU)
3475 .Default(llvm::EABI::Unknown);
3476 if (EABIVersion == llvm::EABI::Unknown)
3477 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
3480 Opts.EABIVersion = EABIVersion;
3482 Opts.CPU = Args.getLastArgValue(OPT_target_cpu);
3483 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath);
3484 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature);
3485 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version);
3486 Opts.Triple = Args.getLastArgValue(OPT_triple);
3487 // Use the default target triple if unspecified.
3488 if (Opts.Triple.empty())
3489 Opts.Triple = llvm::sys::getDefaultTargetTriple();
3490 Opts.Triple = llvm::Triple::normalize(Opts.Triple);
3491 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ);
3492 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128);
3493 Opts.NVPTXUseShortPointers = Args.hasFlag(
3494 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false);
3495 if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) {
3496 llvm::VersionTuple Version;
3497 if (Version.tryParse(A->getValue()))
3498 Diags.Report(diag::err_drv_invalid_value)
3499 << A->getAsString(Args) << A->getValue();
3501 Opts.SDKVersion = Version;
3505 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
3506 ArrayRef<const char *> CommandLineArgs,
3507 DiagnosticsEngine &Diags) {
3508 bool Success = true;
3510 // Parse the arguments.
3511 const OptTable &Opts = getDriverOptTable();
3512 const unsigned IncludedFlagsBitmask = options::CC1Option;
3513 unsigned MissingArgIndex, MissingArgCount;
3514 InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex,
3515 MissingArgCount, IncludedFlagsBitmask);
3516 LangOptions &LangOpts = *Res.getLangOpts();
3518 // Check for missing argument error.
3519 if (MissingArgCount) {
3520 Diags.Report(diag::err_drv_missing_argument)
3521 << Args.getArgString(MissingArgIndex) << MissingArgCount;
3525 // Issue errors on unknown arguments.
3526 for (const auto *A : Args.filtered(OPT_UNKNOWN)) {
3527 auto ArgString = A->getAsString(Args);
3528 std::string Nearest;
3529 if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1)
3530 Diags.Report(diag::err_drv_unknown_argument) << ArgString;
3532 Diags.Report(diag::err_drv_unknown_argument_with_suggestion)
3533 << ArgString << Nearest;
3537 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags);
3538 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args);
3539 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args);
3540 if (!Res.getDependencyOutputOpts().OutputFile.empty() &&
3541 Res.getDependencyOutputOpts().Targets.empty()) {
3542 Diags.Report(diag::err_fe_dependency_file_requires_MT);
3546 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags,
3547 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/);
3548 ParseCommentArgs(LangOpts.CommentOpts, Args);
3549 ParseFileSystemArgs(Res.getFileSystemOpts(), Args);
3550 // FIXME: We shouldn't have to pass the DashX option around here
3551 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags,
3552 LangOpts.IsHeaderFile);
3553 ParseTargetArgs(Res.getTargetOpts(), Args, Diags);
3554 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags,
3555 Res.getTargetOpts(), Res.getFrontendOpts());
3556 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args,
3557 Res.getFileSystemOpts().WorkingDir);
3558 llvm::Triple T(Res.getTargetOpts().Triple);
3559 if (DashX.getFormat() == InputKind::Precompiled ||
3560 DashX.getLanguage() == Language::LLVM_IR) {
3561 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the
3562 // PassManager in BackendUtil.cpp. They need to be initializd no matter
3563 // what the input type is.
3564 if (Args.hasArg(OPT_fobjc_arc))
3565 LangOpts.ObjCAutoRefCount = 1;
3566 // PIClevel and PIELevel are needed during code generation and this should be
3567 // set regardless of the input type.
3568 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
3569 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie);
3570 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
3571 Diags, LangOpts.Sanitize);
3573 // Other LangOpts are only initialized when the input is not AST or LLVM IR.
3574 // FIXME: Should we really be calling this for an Language::Asm input?
3575 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(),
3576 Res.getPreprocessorOpts(), Diags);
3577 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
3578 LangOpts.ObjCExceptions = 1;
3579 if (T.isOSDarwin() && DashX.isPreprocessed()) {
3580 // Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for
3581 // preprocessed input as we don't expect it to be used with -std=libc++
3583 Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found");
3587 if (Diags.isIgnored(diag::warn_profile_data_misexpect, SourceLocation()))
3588 Res.FrontendOpts.LLVMArgs.push_back("-pgo-warn-misexpect");
3590 LangOpts.FunctionAlignment =
3591 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags);
3593 if (LangOpts.CUDA) {
3594 // During CUDA device-side compilation, the aux triple is the
3595 // triple used for host compilation.
3596 if (LangOpts.CUDAIsDevice)
3597 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
3600 // Set the triple of the host for OpenMP device compile.
3601 if (LangOpts.OpenMPIsDevice)
3602 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
3604 // FIXME: Override value name discarding when asan or msan is used because the
3605 // backend passes depend on the name of the alloca in order to print out
3607 Res.getCodeGenOpts().DiscardValueNames &=
3608 !LangOpts.Sanitize.has(SanitizerKind::Address) &&
3609 !LangOpts.Sanitize.has(SanitizerKind::KernelAddress) &&
3610 !LangOpts.Sanitize.has(SanitizerKind::Memory) &&
3611 !LangOpts.Sanitize.has(SanitizerKind::KernelMemory);
3613 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags,
3614 Res.getFrontendOpts().ProgramAction);
3615 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args,
3616 Res.getFrontendOpts().ProgramAction);
3618 // Turn on -Wspir-compat for SPIR target.
3620 Res.getDiagnosticOpts().Warnings.push_back("spir-compat");
3622 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses.
3623 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses &&
3624 !Res.getLangOpts()->Sanitize.empty()) {
3625 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false;
3626 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored);
3631 std::string CompilerInvocation::getModuleHash() const {
3632 // Note: For QoI reasons, the things we use as a hash here should all be
3633 // dumped via the -module-info flag.
3634 using llvm::hash_code;
3635 using llvm::hash_value;
3636 using llvm::hash_combine;
3637 using llvm::hash_combine_range;
3639 // Start the signature with the compiler version.
3640 // FIXME: We'd rather use something more cryptographically sound than
3641 // CityHash, but this will do for now.
3642 hash_code code = hash_value(getClangFullRepositoryVersion());
3644 // Extend the signature with the language options
3645 #define LANGOPT(Name, Bits, Default, Description) \
3646 code = hash_combine(code, LangOpts->Name);
3647 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
3648 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name()));
3649 #define BENIGN_LANGOPT(Name, Bits, Default, Description)
3650 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
3651 #include "clang/Basic/LangOptions.def"
3653 for (StringRef Feature : LangOpts->ModuleFeatures)
3654 code = hash_combine(code, Feature);
3656 // Extend the signature with the target options.
3657 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU,
3659 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten)
3660 code = hash_combine(code, FeatureAsWritten);
3662 // Extend the signature with preprocessor options.
3663 const PreprocessorOptions &ppOpts = getPreprocessorOpts();
3664 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts();
3665 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord);
3667 for (const auto &I : getPreprocessorOpts().Macros) {
3668 // If we're supposed to ignore this macro for the purposes of modules,
3669 // don't put it into the hash.
3670 if (!hsOpts.ModulesIgnoreMacros.empty()) {
3671 // Check whether we're ignoring this macro.
3672 StringRef MacroDef = I.first;
3673 if (hsOpts.ModulesIgnoreMacros.count(
3674 llvm::CachedHashString(MacroDef.split('=').first)))
3678 code = hash_combine(code, I.first, I.second);
3681 // Extend the signature with the sysroot and other header search options.
3682 code = hash_combine(code, hsOpts.Sysroot,
3683 hsOpts.ModuleFormat,
3684 hsOpts.UseDebugInfo,
3685 hsOpts.UseBuiltinIncludes,
3686 hsOpts.UseStandardSystemIncludes,
3687 hsOpts.UseStandardCXXIncludes,
3689 hsOpts.ModulesValidateDiagnosticOptions);
3690 code = hash_combine(code, hsOpts.ResourceDir);
3692 if (hsOpts.ModulesStrictContextHash) {
3693 hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(),
3694 hsOpts.SystemHeaderPrefixes.end());
3695 hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(),
3696 hsOpts.UserEntries.end());
3697 code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC,
3698 hsOpts.UserEntries.size(), UEC);
3700 const DiagnosticOptions &diagOpts = getDiagnosticOpts();
3701 #define DIAGOPT(Name, Bits, Default) \
3702 code = hash_combine(code, diagOpts.Name);
3703 #define ENUM_DIAGOPT(Name, Type, Bits, Default) \
3704 code = hash_combine(code, diagOpts.get##Name());
3705 #include "clang/Basic/DiagnosticOptions.def"
3710 // Extend the signature with the user build path.
3711 code = hash_combine(code, hsOpts.ModuleUserBuildPath);
3713 // Extend the signature with the module file extensions.
3714 const FrontendOptions &frontendOpts = getFrontendOpts();
3715 for (const auto &ext : frontendOpts.ModuleFileExtensions) {
3716 code = ext->hashExtension(code);
3719 // When compiling with -gmodules, also hash -fdebug-prefix-map as it
3720 // affects the debug info in the PCM.
3721 if (getCodeGenOpts().DebugTypeExtRefs)
3722 for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap)
3723 code = hash_combine(code, KeyValue.first, KeyValue.second);
3725 // Extend the signature with the enabled sanitizers, if at least one is
3726 // enabled. Sanitizers which cannot affect AST generation aren't hashed.
3727 SanitizerSet SanHash = LangOpts->Sanitize;
3728 SanHash.clear(getPPTransparentSanitizers());
3729 if (!SanHash.empty())
3730 code = hash_combine(code, SanHash.Mask);
3732 return llvm::APInt(64, code).toString(36, /*Signed=*/false);
3737 IntrusiveRefCntPtr<llvm::vfs::FileSystem>
3738 createVFSFromCompilerInvocation(const CompilerInvocation &CI,
3739 DiagnosticsEngine &Diags) {
3740 return createVFSFromCompilerInvocation(CI, Diags,
3741 llvm::vfs::getRealFileSystem());
3744 IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation(
3745 const CompilerInvocation &CI, DiagnosticsEngine &Diags,
3746 IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) {
3747 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty())
3750 IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS;
3751 // earlier vfs files are on the bottom
3752 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) {
3753 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer =
3754 Result->getBufferForFile(File);
3756 Diags.Report(diag::err_missing_vfs_overlay_file) << File;
3760 IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML(
3761 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File,
3762 /*DiagContext*/ nullptr, Result);
3764 Diags.Report(diag::err_invalid_vfs_overlay) << File;
3773 } // namespace clang