1 //===- CompilerInvocation.cpp ---------------------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "clang/Frontend/CompilerInvocation.h"
11 #include "TestModuleFileExtension.h"
12 #include "clang/Basic/Builtins.h"
13 #include "clang/Basic/CharInfo.h"
14 #include "clang/Basic/CommentOptions.h"
15 #include "clang/Basic/DebugInfoOptions.h"
16 #include "clang/Basic/Diagnostic.h"
17 #include "clang/Basic/DiagnosticOptions.h"
18 #include "clang/Basic/FileSystemOptions.h"
19 #include "clang/Basic/LLVM.h"
20 #include "clang/Basic/LangOptions.h"
21 #include "clang/Basic/ObjCRuntime.h"
22 #include "clang/Basic/Sanitizers.h"
23 #include "clang/Basic/SourceLocation.h"
24 #include "clang/Basic/TargetOptions.h"
25 #include "clang/Basic/Version.h"
26 #include "clang/Basic/VirtualFileSystem.h"
27 #include "clang/Basic/Visibility.h"
28 #include "clang/Basic/XRayInstr.h"
29 #include "clang/Config/config.h"
30 #include "clang/Driver/DriverDiagnostic.h"
31 #include "clang/Driver/Options.h"
32 #include "clang/Frontend/CodeGenOptions.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/LangStandard.h"
38 #include "clang/Frontend/MigratorOptions.h"
39 #include "clang/Frontend/PreprocessorOutputOptions.h"
40 #include "clang/Frontend/Utils.h"
41 #include "clang/Lex/HeaderSearchOptions.h"
42 #include "clang/Lex/PreprocessorOptions.h"
43 #include "clang/Sema/CodeCompleteOptions.h"
44 #include "clang/Serialization/ModuleFileExtension.h"
45 #include "clang/StaticAnalyzer/Core/AnalyzerOptions.h"
46 #include "llvm/ADT/APInt.h"
47 #include "llvm/ADT/ArrayRef.h"
48 #include "llvm/ADT/CachedHashString.h"
49 #include "llvm/ADT/Hashing.h"
50 #include "llvm/ADT/None.h"
51 #include "llvm/ADT/Optional.h"
52 #include "llvm/ADT/SmallString.h"
53 #include "llvm/ADT/SmallVector.h"
54 #include "llvm/ADT/StringRef.h"
55 #include "llvm/ADT/StringSwitch.h"
56 #include "llvm/ADT/Triple.h"
57 #include "llvm/ADT/Twine.h"
58 #include "llvm/Linker/Linker.h"
59 #include "llvm/MC/MCTargetOptions.h"
60 #include "llvm/Option/Arg.h"
61 #include "llvm/Option/ArgList.h"
62 #include "llvm/Option/OptSpecifier.h"
63 #include "llvm/Option/OptTable.h"
64 #include "llvm/Option/Option.h"
65 #include "llvm/ProfileData/InstrProfReader.h"
66 #include "llvm/Support/CodeGen.h"
67 #include "llvm/Support/Compiler.h"
68 #include "llvm/Support/Error.h"
69 #include "llvm/Support/ErrorHandling.h"
70 #include "llvm/Support/ErrorOr.h"
71 #include "llvm/Support/FileSystem.h"
72 #include "llvm/Support/Host.h"
73 #include "llvm/Support/MathExtras.h"
74 #include "llvm/Support/MemoryBuffer.h"
75 #include "llvm/Support/Path.h"
76 #include "llvm/Support/Process.h"
77 #include "llvm/Support/Regex.h"
78 #include "llvm/Support/VersionTuple.h"
79 #include "llvm/Support/raw_ostream.h"
80 #include "llvm/Target/TargetOptions.h"
92 using namespace clang;
93 using namespace driver;
94 using namespace options;
95 using namespace llvm::opt;
97 //===----------------------------------------------------------------------===//
99 //===----------------------------------------------------------------------===//
101 CompilerInvocationBase::CompilerInvocationBase()
102 : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()),
103 DiagnosticOpts(new DiagnosticOptions()),
104 HeaderSearchOpts(new HeaderSearchOptions()),
105 PreprocessorOpts(new PreprocessorOptions()) {}
107 CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X)
108 : LangOpts(new LangOptions(*X.getLangOpts())),
109 TargetOpts(new TargetOptions(X.getTargetOpts())),
110 DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())),
111 HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())),
112 PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {}
114 CompilerInvocationBase::~CompilerInvocationBase() = default;
116 //===----------------------------------------------------------------------===//
117 // Deserialization (from args)
118 //===----------------------------------------------------------------------===//
120 static unsigned getOptimizationLevel(ArgList &Args, InputKind IK,
121 DiagnosticsEngine &Diags) {
122 unsigned DefaultOpt = 0;
123 if (IK.getLanguage() == InputKind::OpenCL && !Args.hasArg(OPT_cl_opt_disable))
126 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
127 if (A->getOption().matches(options::OPT_O0))
130 if (A->getOption().matches(options::OPT_Ofast))
133 assert(A->getOption().matches(options::OPT_O));
135 StringRef S(A->getValue());
136 if (S == "s" || S == "z" || S.empty())
142 return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags);
148 static unsigned getOptimizationLevelSize(ArgList &Args) {
149 if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
150 if (A->getOption().matches(options::OPT_O)) {
151 switch (A->getValue()[0]) {
164 static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group,
165 OptSpecifier GroupWithValue,
166 std::vector<std::string> &Diagnostics) {
167 for (auto *A : Args.filtered(Group)) {
168 if (A->getOption().getKind() == Option::FlagClass) {
169 // The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add
170 // its name (minus the "W" or "R" at the beginning) to the warning list.
171 Diagnostics.push_back(A->getOption().getName().drop_front(1));
172 } else if (A->getOption().matches(GroupWithValue)) {
173 // This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group.
174 Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-"));
176 // Otherwise, add its value (for OPT_W_Joined and similar).
177 for (const auto *Arg : A->getValues())
178 Diagnostics.emplace_back(Arg);
183 static void getAllNoBuiltinFuncValues(ArgList &Args,
184 std::vector<std::string> &Funcs) {
185 SmallVector<const char *, 8> Values;
186 for (const auto &Arg : Args) {
187 const Option &O = Arg->getOption();
188 if (O.matches(options::OPT_fno_builtin_)) {
189 const char *FuncName = Arg->getValue();
190 if (Builtin::Context::isBuiltinFunc(FuncName))
191 Values.push_back(FuncName);
194 Funcs.insert(Funcs.end(), Values.begin(), Values.end());
197 static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
198 DiagnosticsEngine &Diags) {
200 if (Arg *A = Args.getLastArg(OPT_analyzer_store)) {
201 StringRef Name = A->getValue();
202 AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name)
203 #define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
204 .Case(CMDFLAG, NAME##Model)
205 #include "clang/StaticAnalyzer/Core/Analyses.def"
207 if (Value == NumStores) {
208 Diags.Report(diag::err_drv_invalid_value)
209 << A->getAsString(Args) << Name;
212 Opts.AnalysisStoreOpt = Value;
216 if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) {
217 StringRef Name = A->getValue();
218 AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
219 #define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
220 .Case(CMDFLAG, NAME##Model)
221 #include "clang/StaticAnalyzer/Core/Analyses.def"
222 .Default(NumConstraints);
223 if (Value == NumConstraints) {
224 Diags.Report(diag::err_drv_invalid_value)
225 << A->getAsString(Args) << Name;
228 Opts.AnalysisConstraintsOpt = Value;
232 if (Arg *A = Args.getLastArg(OPT_analyzer_output)) {
233 StringRef Name = A->getValue();
234 AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
235 #define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \
236 .Case(CMDFLAG, PD_##NAME)
237 #include "clang/StaticAnalyzer/Core/Analyses.def"
238 .Default(NUM_ANALYSIS_DIAG_CLIENTS);
239 if (Value == NUM_ANALYSIS_DIAG_CLIENTS) {
240 Diags.Report(diag::err_drv_invalid_value)
241 << A->getAsString(Args) << Name;
244 Opts.AnalysisDiagOpt = Value;
248 if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) {
249 StringRef Name = A->getValue();
250 AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name)
251 #define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \
253 #include "clang/StaticAnalyzer/Core/Analyses.def"
254 .Default(NumPurgeModes);
255 if (Value == NumPurgeModes) {
256 Diags.Report(diag::err_drv_invalid_value)
257 << A->getAsString(Args) << Name;
260 Opts.AnalysisPurgeOpt = Value;
264 if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) {
265 StringRef Name = A->getValue();
266 AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name)
267 #define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \
269 #include "clang/StaticAnalyzer/Core/Analyses.def"
270 .Default(NumInliningModes);
271 if (Value == NumInliningModes) {
272 Diags.Report(diag::err_drv_invalid_value)
273 << A->getAsString(Args) << Name;
276 Opts.InliningMode = Value;
280 Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help);
281 Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers);
282 Opts.DisableAllChecks = Args.hasArg(OPT_analyzer_disable_all_checks);
284 Opts.visualizeExplodedGraphWithGraphViz =
285 Args.hasArg(OPT_analyzer_viz_egraph_graphviz);
286 Opts.visualizeExplodedGraphWithUbiGraph =
287 Args.hasArg(OPT_analyzer_viz_egraph_ubigraph);
288 Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted);
289 Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers);
290 Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress);
291 Opts.AnalyzeNestedBlocks =
292 Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks);
293 Opts.eagerlyAssumeBinOpBifurcation = Args.hasArg(OPT_analyzer_eagerly_assume);
294 Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function);
295 Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG);
296 Opts.TrimGraph = Args.hasArg(OPT_trim_egraph);
297 Opts.maxBlockVisitOnPath =
298 getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags);
299 Opts.PrintStats = Args.hasArg(OPT_analyzer_stats);
300 Opts.InlineMaxStackDepth =
301 getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth,
302 Opts.InlineMaxStackDepth, Diags);
304 Opts.CheckersControlList.clear();
306 Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) {
308 bool enable = (A->getOption().getID() == OPT_analyzer_checker);
309 // We can have a list of comma separated checker names, e.g:
310 // '-analyzer-checker=cocoa,unix'
311 StringRef checkerList = A->getValue();
312 SmallVector<StringRef, 4> checkers;
313 checkerList.split(checkers, ",");
314 for (auto checker : checkers)
315 Opts.CheckersControlList.emplace_back(checker, enable);
318 // Go through the analyzer configuration options.
319 for (const auto *A : Args.filtered(OPT_analyzer_config)) {
321 // We can have a list of comma separated config names, e.g:
322 // '-analyzer-config key1=val1,key2=val2'
323 StringRef configList = A->getValue();
324 SmallVector<StringRef, 4> configVals;
325 configList.split(configVals, ",");
326 for (const auto &configVal : configVals) {
328 std::tie(key, val) = configVal.split("=");
330 Diags.Report(SourceLocation(),
331 diag::err_analyzer_config_no_value) << configVal;
335 if (val.find('=') != StringRef::npos) {
336 Diags.Report(SourceLocation(),
337 diag::err_analyzer_config_multiple_values)
342 Opts.Config[key] = val;
346 llvm::raw_string_ostream os(Opts.FullCompilerInvocation);
347 for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) {
350 os << Args.getArgString(i);
357 static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) {
358 Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error);
359 Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal);
363 static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) {
364 Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands);
365 Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments);
368 static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) {
369 if (Arg *A = Args.getLastArg(OPT_mcode_model)) {
370 StringRef Value = A->getValue();
371 if (Value == "small" || Value == "kernel" || Value == "medium" ||
374 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value;
379 static llvm::Reloc::Model getRelocModel(ArgList &Args,
380 DiagnosticsEngine &Diags) {
381 if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) {
382 StringRef Value = A->getValue();
383 auto RM = llvm::StringSwitch<llvm::Optional<llvm::Reloc::Model>>(Value)
384 .Case("static", llvm::Reloc::Static)
385 .Case("pic", llvm::Reloc::PIC_)
386 .Case("ropi", llvm::Reloc::ROPI)
387 .Case("rwpi", llvm::Reloc::RWPI)
388 .Case("ropi-rwpi", llvm::Reloc::ROPI_RWPI)
389 .Case("dynamic-no-pic", llvm::Reloc::DynamicNoPIC)
393 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value;
395 return llvm::Reloc::PIC_;
398 /// Create a new Regex instance out of the string value in \p RpassArg.
399 /// It returns a pointer to the newly generated Regex instance.
400 static std::shared_ptr<llvm::Regex>
401 GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args,
403 StringRef Val = RpassArg->getValue();
404 std::string RegexError;
405 std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val);
406 if (!Pattern->isValid(RegexError)) {
407 Diags.Report(diag::err_drv_optimization_remark_pattern)
408 << RegexError << RpassArg->getAsString(Args);
414 static bool parseDiagnosticLevelMask(StringRef FlagName,
415 const std::vector<std::string> &Levels,
416 DiagnosticsEngine *Diags,
417 DiagnosticLevelMask &M) {
419 for (const auto &Level : Levels) {
420 DiagnosticLevelMask const PM =
421 llvm::StringSwitch<DiagnosticLevelMask>(Level)
422 .Case("note", DiagnosticLevelMask::Note)
423 .Case("remark", DiagnosticLevelMask::Remark)
424 .Case("warning", DiagnosticLevelMask::Warning)
425 .Case("error", DiagnosticLevelMask::Error)
426 .Default(DiagnosticLevelMask::None);
427 if (PM == DiagnosticLevelMask::None) {
430 Diags->Report(diag::err_drv_invalid_value) << FlagName << Level;
437 static void parseSanitizerKinds(StringRef FlagName,
438 const std::vector<std::string> &Sanitizers,
439 DiagnosticsEngine &Diags, SanitizerSet &S) {
440 for (const auto &Sanitizer : Sanitizers) {
441 SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false);
443 Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer;
449 static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle,
450 ArgList &Args, DiagnosticsEngine &D,
452 llvm::SmallVector<StringRef, 2> BundleParts;
453 llvm::SplitString(Bundle, BundleParts, ",");
454 for (const auto B : BundleParts) {
455 auto Mask = parseXRayInstrValue(B);
456 if (Mask == XRayInstrKind::None)
458 D.Report(diag::err_drv_invalid_value) << FlagName << Bundle;
461 else if (Mask == XRayInstrKind::All)
468 // Set the profile kind for fprofile-instrument.
469 static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args,
470 DiagnosticsEngine &Diags) {
471 Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ);
474 StringRef S = A->getValue();
475 unsigned I = llvm::StringSwitch<unsigned>(S)
476 .Case("none", CodeGenOptions::ProfileNone)
477 .Case("clang", CodeGenOptions::ProfileClangInstr)
478 .Case("llvm", CodeGenOptions::ProfileIRInstr)
481 Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args)
485 auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I);
486 Opts.setProfileInstr(Instrumentor);
489 // Set the profile kind using fprofile-instrument-use-path.
490 static void setPGOUseInstrumentor(CodeGenOptions &Opts,
491 const Twine &ProfileName) {
492 auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName);
493 // In error, return silently and let Clang PGOUse report the error message.
494 if (auto E = ReaderOrErr.takeError()) {
495 llvm::consumeError(std::move(E));
496 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr);
499 std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader =
500 std::move(ReaderOrErr.get());
501 if (PGOReader->isIRLevelProfile())
502 Opts.setProfileUse(CodeGenOptions::ProfileIRInstr);
504 Opts.setProfileUse(CodeGenOptions::ProfileClangInstr);
507 static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
508 DiagnosticsEngine &Diags,
509 const TargetOptions &TargetOpts,
510 const FrontendOptions &FrontendOpts) {
512 llvm::Triple Triple = llvm::Triple(TargetOpts.Triple);
514 unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags);
515 // TODO: This could be done in Driver
516 unsigned MaxOptLevel = 3;
517 if (OptimizationLevel > MaxOptLevel) {
518 // If the optimization level is not supported, fall back on the default
520 Diags.Report(diag::warn_drv_optimization_value)
521 << Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel;
522 OptimizationLevel = MaxOptLevel;
524 Opts.OptimizationLevel = OptimizationLevel;
526 // At O0 we want to fully disable inlining outside of cases marked with
527 // 'alwaysinline' that are required for correctness.
528 Opts.setInlining((Opts.OptimizationLevel == 0)
529 ? CodeGenOptions::OnlyAlwaysInlining
530 : CodeGenOptions::NormalInlining);
531 // Explicit inlining flags can disable some or all inlining even at
532 // optimization levels above zero.
533 if (Arg *InlineArg = Args.getLastArg(
534 options::OPT_finline_functions, options::OPT_finline_hint_functions,
535 options::OPT_fno_inline_functions, options::OPT_fno_inline)) {
536 if (Opts.OptimizationLevel > 0) {
537 const Option &InlineOpt = InlineArg->getOption();
538 if (InlineOpt.matches(options::OPT_finline_functions))
539 Opts.setInlining(CodeGenOptions::NormalInlining);
540 else if (InlineOpt.matches(options::OPT_finline_hint_functions))
541 Opts.setInlining(CodeGenOptions::OnlyHintInlining);
543 Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining);
547 Opts.ExperimentalNewPassManager = Args.hasFlag(
548 OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager,
549 /* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER);
551 Opts.DebugPassManager =
552 Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager,
553 /* Default */ false);
555 if (Arg *A = Args.getLastArg(OPT_fveclib)) {
556 StringRef Name = A->getValue();
557 if (Name == "Accelerate")
558 Opts.setVecLib(CodeGenOptions::Accelerate);
559 else if (Name == "SVML")
560 Opts.setVecLib(CodeGenOptions::SVML);
561 else if (Name == "none")
562 Opts.setVecLib(CodeGenOptions::NoLibrary);
564 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
567 if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) {
569 llvm::StringSwitch<unsigned>(A->getValue())
570 .Case("line-tables-only", codegenoptions::DebugLineTablesOnly)
571 .Case("limited", codegenoptions::LimitedDebugInfo)
572 .Case("standalone", codegenoptions::FullDebugInfo)
575 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
578 Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val));
580 if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) {
581 unsigned Val = llvm::StringSwitch<unsigned>(A->getValue())
582 .Case("gdb", unsigned(llvm::DebuggerKind::GDB))
583 .Case("lldb", unsigned(llvm::DebuggerKind::LLDB))
584 .Case("sce", unsigned(llvm::DebuggerKind::SCE))
587 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
590 Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val));
592 Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags);
593 Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info);
594 Opts.EmitCodeView = Args.hasArg(OPT_gcodeview);
595 Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro);
596 Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables);
597 Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std);
598 Opts.EnableSplitDwarf = Args.hasArg(OPT_enable_split_dwarf);
599 Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file);
600 Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining);
601 Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs);
602 Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import);
603 Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params);
604 Opts.EmbedSource = Args.hasArg(OPT_gembed_source);
606 for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ))
607 Opts.DebugPrefixMap.insert(StringRef(Arg).split('='));
610 Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists))
611 Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists;
613 Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes);
614 Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers);
615 Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone);
616 Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
617 Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables);
618 Opts.UseRegisterSizedBitfieldAccess = Args.hasArg(
619 OPT_fuse_register_sized_bitfield_access);
620 Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing);
621 Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa);
622 Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) &&
623 Args.hasArg(OPT_new_struct_path_tbaa);
624 Opts.FineGrainedBitfieldAccesses =
625 Args.hasFlag(OPT_ffine_grained_bitfield_accesses,
626 OPT_fno_fine_grained_bitfield_accesses, false);
627 Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags);
628 Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants);
629 Opts.NoCommon = Args.hasArg(OPT_fno_common);
630 Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float);
631 Opts.OptimizeSize = getOptimizationLevelSize(Args);
632 Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) ||
633 Args.hasArg(OPT_ffreestanding));
634 if (Opts.SimplifyLibCalls)
635 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs);
637 Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops,
638 (Opts.OptimizationLevel > 1));
639 Opts.RerollLoops = Args.hasArg(OPT_freroll_loops);
641 Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as);
642 Opts.Autolink = !Args.hasArg(OPT_fno_autolink);
643 Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ);
644 Opts.DebugInfoForProfiling = Args.hasFlag(
645 OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false);
646 Opts.GnuPubnames = Args.hasArg(OPT_ggnu_pubnames);
648 setPGOInstrumentor(Opts, Args, Diags);
649 Opts.InstrProfileOutput =
650 Args.getLastArgValue(OPT_fprofile_instrument_path_EQ);
651 Opts.ProfileInstrumentUsePath =
652 Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ);
653 if (!Opts.ProfileInstrumentUsePath.empty())
654 setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath);
656 Opts.CoverageMapping =
657 Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false);
658 Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping);
659 Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose);
660 Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments);
661 Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
662 Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions);
663 Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit);
664 Opts.RegisterGlobalDtorsWithAtExit =
665 Args.hasArg(OPT_fregister_global_dtors_with_atexit);
666 Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases);
667 Opts.CodeModel = getCodeModel(Args, Diags);
668 Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass);
670 (Args.hasArg(OPT_mdisable_fp_elim) || Args.hasArg(OPT_pg));
671 Opts.DisableFree = Args.hasArg(OPT_disable_free);
672 Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names);
673 Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls);
674 Opts.NoEscapingBlockTailCalls =
675 Args.hasArg(OPT_fno_escaping_block_tail_calls);
676 Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi);
677 Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) ||
678 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
679 Args.hasArg(OPT_cl_fast_relaxed_math);
680 Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision);
681 Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) ||
682 Args.hasArg(OPT_cl_finite_math_only) ||
683 Args.hasArg(OPT_cl_fast_relaxed_math));
684 Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) ||
685 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
686 Args.hasArg(OPT_cl_finite_math_only) ||
687 Args.hasArg(OPT_cl_fast_relaxed_math));
688 Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) ||
689 Args.hasArg(OPT_cl_no_signed_zeros) ||
690 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
691 Args.hasArg(OPT_cl_fast_relaxed_math));
692 Opts.Reassociate = Args.hasArg(OPT_mreassociate);
693 Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero) ||
694 (Args.hasArg(OPT_fcuda_is_device) &&
695 Args.hasArg(OPT_fcuda_flush_denormals_to_zero));
696 Opts.CorrectlyRoundedDivSqrt =
697 Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt);
699 Args.hasArg(OPT_cl_uniform_work_group_size);
700 Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ);
701 Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math);
702 Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math);
703 Opts.StrictFloatCastOverflow =
704 !Args.hasArg(OPT_fno_strict_float_cast_overflow);
706 Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
707 Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags);
708 Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack);
709 Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings);
710 Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks);
711 Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
712 Opts.IncrementalLinkerCompatible =
713 Args.hasArg(OPT_mincremental_linker_compatible);
714 Opts.PIECopyRelocations =
715 Args.hasArg(OPT_mpie_copy_relocations);
716 Opts.NoPLT = Args.hasArg(OPT_fno_plt);
717 Opts.OmitLeafFramePointer = Args.hasArg(OPT_momit_leaf_frame_pointer);
718 Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels);
719 Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm);
720 Opts.SoftFloat = Args.hasArg(OPT_msoft_float);
721 Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums);
722 Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return);
723 Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers);
724 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables);
725 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
726 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
727 Args.hasArg(OPT_cl_fast_relaxed_math);
728 Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
729 Opts.RelocationModel = getRelocModel(Args, Diags);
730 Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix");
731 if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single")
732 Diags.Report(diag::err_drv_invalid_value)
733 << Args.getLastArg(OPT_mthread_model)->getAsString(Args)
735 Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ);
736 Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array);
738 Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections,
739 OPT_fno_function_sections, false);
740 Opts.DataSections = Args.hasFlag(OPT_fdata_sections,
741 OPT_fno_data_sections, false);
742 Opts.StackSizeSection =
743 Args.hasFlag(OPT_fstack_size_section, OPT_fno_stack_size_section, false);
744 Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names,
745 OPT_fno_unique_section_names, true);
747 Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions);
749 Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables);
751 Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks);
753 Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate);
755 Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ);
756 Opts.PrepareForThinLTO = false;
757 if (Arg *A = Args.getLastArg(OPT_flto_EQ)) {
758 StringRef S = A->getValue();
760 Opts.PrepareForThinLTO = true;
761 else if (S != "full")
762 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S;
764 Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false);
765 if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) {
766 if (IK.getLanguage() != InputKind::LLVM_IR)
767 Diags.Report(diag::err_drv_argument_only_allowed_with)
768 << A->getAsString(Args) << "-x ir";
769 Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ);
771 if (Arg *A = Args.getLastArg(OPT_save_temps_EQ))
772 Opts.SaveTempsFilePrefix =
773 llvm::StringSwitch<std::string>(A->getValue())
774 .Case("obj", FrontendOpts.OutputFile)
775 .Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str());
777 Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ);
779 Opts.MSVolatile = Args.hasArg(OPT_fms_volatile);
781 Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops);
782 Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp);
784 Opts.PreferVectorWidth = Args.getLastArgValue(OPT_mprefer_vector_width_EQ);
786 Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name);
787 Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier);
789 Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard);
791 Opts.DisableGCov = Args.hasArg(OPT_test_coverage);
792 Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data);
793 Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes);
794 if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) {
795 Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file);
796 Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file);
797 Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum);
798 Opts.CoverageNoFunctionNamesInData =
799 Args.hasArg(OPT_coverage_no_function_names_in_data);
800 Opts.CoverageExitBlockBeforeBody =
801 Args.hasArg(OPT_coverage_exit_block_before_body);
802 if (Args.hasArg(OPT_coverage_version_EQ)) {
803 StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ);
804 if (CoverageVersion.size() != 4) {
805 Diags.Report(diag::err_drv_invalid_value)
806 << Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args)
809 memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4);
813 // Handle -fembed-bitcode option.
814 if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) {
815 StringRef Name = A->getValue();
816 unsigned Model = llvm::StringSwitch<unsigned>(Name)
817 .Case("off", CodeGenOptions::Embed_Off)
818 .Case("all", CodeGenOptions::Embed_All)
819 .Case("bitcode", CodeGenOptions::Embed_Bitcode)
820 .Case("marker", CodeGenOptions::Embed_Marker)
823 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
826 Opts.setEmbedBitcode(
827 static_cast<CodeGenOptions::EmbedBitcodeKind>(Model));
829 // FIXME: For backend options that are not yet recorded as function
830 // attributes in the IR, keep track of them so we can embed them in a
831 // separate data section and use them when building the bitcode.
832 if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) {
833 for (const auto &A : Args) {
834 // Do not encode output and input.
835 if (A->getOption().getID() == options::OPT_o ||
836 A->getOption().getID() == options::OPT_INPUT ||
837 A->getOption().getID() == options::OPT_x ||
838 A->getOption().getID() == options::OPT_fembed_bitcode ||
839 (A->getOption().getGroup().isValid() &&
840 A->getOption().getGroup().getID() == options::OPT_W_Group))
843 A->render(Args, ASL);
844 for (const auto &arg : ASL) {
845 StringRef ArgStr(arg);
846 Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end());
847 // using \00 to seperate each commandline options.
848 Opts.CmdArgs.push_back('\0');
853 Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type);
854 Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions);
855 Opts.InstrumentFunctionsAfterInlining =
856 Args.hasArg(OPT_finstrument_functions_after_inlining);
857 Opts.InstrumentFunctionEntryBare =
858 Args.hasArg(OPT_finstrument_function_entry_bare);
860 Opts.XRayInstrumentFunctions =
861 Args.hasArg(OPT_fxray_instrument);
862 Opts.XRayAlwaysEmitCustomEvents =
863 Args.hasArg(OPT_fxray_always_emit_customevents);
864 Opts.XRayAlwaysEmitTypedEvents =
865 Args.hasArg(OPT_fxray_always_emit_typedevents);
866 Opts.XRayInstructionThreshold =
867 getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags);
869 auto XRayInstrBundles =
870 Args.getAllArgValues(OPT_fxray_instrumentation_bundle);
871 if (XRayInstrBundles.empty())
872 Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All;
874 for (const auto &A : XRayInstrBundles)
875 parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args,
876 Diags, Opts.XRayInstrumentationBundle);
878 Opts.InstrumentForProfiling = Args.hasArg(OPT_pg);
879 Opts.CallFEntry = Args.hasArg(OPT_mfentry);
880 Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info);
882 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) {
883 StringRef Name = A->getValue();
884 if (Name == "full") {
885 Opts.CFProtectionReturn = 1;
886 Opts.CFProtectionBranch = 1;
887 } else if (Name == "return")
888 Opts.CFProtectionReturn = 1;
889 else if (Name == "branch")
890 Opts.CFProtectionBranch = 1;
891 else if (Name != "none") {
892 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
897 if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections,
898 OPT_compress_debug_sections_EQ)) {
899 if (A->getOption().getID() == OPT_compress_debug_sections) {
900 // TODO: be more clever about the compression type auto-detection
901 Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU);
903 auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue())
904 .Case("none", llvm::DebugCompressionType::None)
905 .Case("zlib", llvm::DebugCompressionType::Z)
906 .Case("zlib-gnu", llvm::DebugCompressionType::GNU)
907 .Default(llvm::DebugCompressionType::None);
908 Opts.setCompressDebugSections(DCT);
912 Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations);
913 Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir);
915 Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_cuda_bitcode)) {
916 CodeGenOptions::BitcodeFileToLink F;
917 F.Filename = A->getValue();
918 if (A->getOption().matches(OPT_mlink_cuda_bitcode)) {
919 F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded;
920 // When linking CUDA bitcode, propagate function attributes so that
921 // e.g. libdevice gets fast-math attrs if we're building with fast-math.
922 F.PropagateAttrs = true;
923 F.Internalize = true;
925 Opts.LinkBitcodeFiles.push_back(F);
927 Opts.SanitizeCoverageType =
928 getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags);
929 Opts.SanitizeCoverageIndirectCalls =
930 Args.hasArg(OPT_fsanitize_coverage_indirect_calls);
931 Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb);
932 Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp);
933 Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div);
934 Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep);
935 Opts.SanitizeCoverage8bitCounters =
936 Args.hasArg(OPT_fsanitize_coverage_8bit_counters);
937 Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc);
938 Opts.SanitizeCoverageTracePCGuard =
939 Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard);
940 Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune);
941 Opts.SanitizeCoverageInline8bitCounters =
942 Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters);
943 Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table);
944 Opts.SanitizeCoverageStackDepth =
945 Args.hasArg(OPT_fsanitize_coverage_stack_depth);
946 Opts.SanitizeMemoryTrackOrigins =
947 getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags);
948 Opts.SanitizeMemoryUseAfterDtor =
949 Args.hasFlag(OPT_fsanitize_memory_use_after_dtor,
950 OPT_fno_sanitize_memory_use_after_dtor,
952 Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime);
953 Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso);
954 Opts.SanitizeCfiICallGeneralizePointers =
955 Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers);
956 Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats);
957 if (Arg *A = Args.getLastArg(
958 OPT_fsanitize_address_poison_class_member_array_new_cookie,
959 OPT_fno_sanitize_address_poison_class_member_array_new_cookie)) {
960 Opts.SanitizeAddressPoisonClassMemberArrayNewCookie =
961 A->getOption().getID() ==
962 OPT_fsanitize_address_poison_class_member_array_new_cookie;
964 if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope,
965 OPT_fno_sanitize_address_use_after_scope)) {
966 Opts.SanitizeAddressUseAfterScope =
967 A->getOption().getID() == OPT_fsanitize_address_use_after_scope;
969 Opts.SanitizeAddressGlobalsDeadStripping =
970 Args.hasArg(OPT_fsanitize_address_globals_dead_stripping);
972 getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags);
973 Opts.StackRealignment = Args.hasArg(OPT_mstackrealign);
974 if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) {
975 StringRef Val = A->getValue();
976 unsigned StackAlignment = Opts.StackAlignment;
977 Val.getAsInteger(10, StackAlignment);
978 Opts.StackAlignment = StackAlignment;
981 if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) {
982 StringRef Val = A->getValue();
983 unsigned StackProbeSize = Opts.StackProbeSize;
984 Val.getAsInteger(0, StackProbeSize);
985 Opts.StackProbeSize = StackProbeSize;
988 Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe);
990 if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) {
991 StringRef Name = A->getValue();
992 unsigned Method = llvm::StringSwitch<unsigned>(Name)
993 .Case("legacy", CodeGenOptions::Legacy)
994 .Case("non-legacy", CodeGenOptions::NonLegacy)
995 .Case("mixed", CodeGenOptions::Mixed)
998 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
1001 Opts.setObjCDispatchMethod(
1002 static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method));
1006 if (Args.getLastArg(OPT_femulated_tls) ||
1007 Args.getLastArg(OPT_fno_emulated_tls)) {
1008 Opts.ExplicitEmulatedTLS = true;
1010 Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false);
1013 if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) {
1014 StringRef Name = A->getValue();
1015 unsigned Model = llvm::StringSwitch<unsigned>(Name)
1016 .Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel)
1017 .Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel)
1018 .Case("initial-exec", CodeGenOptions::InitialExecTLSModel)
1019 .Case("local-exec", CodeGenOptions::LocalExecTLSModel)
1022 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
1025 Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model));
1029 if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) {
1030 StringRef Val = A->getValue();
1032 Opts.FPDenormalMode = "ieee";
1033 else if (Val == "preserve-sign")
1034 Opts.FPDenormalMode = "preserve-sign";
1035 else if (Val == "positive-zero")
1036 Opts.FPDenormalMode = "positive-zero";
1038 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
1041 if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) {
1042 if (A->getOption().matches(OPT_fpcc_struct_return)) {
1043 Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack);
1045 assert(A->getOption().matches(OPT_freg_struct_return));
1046 Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs);
1050 Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib);
1051 Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option);
1052 bool NeedLocTracking = false;
1054 Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file);
1055 if (!Opts.OptRecordFile.empty())
1056 NeedLocTracking = true;
1058 if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) {
1059 Opts.OptimizationRemarkPattern =
1060 GenerateOptimizationRemarkRegex(Diags, Args, A);
1061 NeedLocTracking = true;
1064 if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) {
1065 Opts.OptimizationRemarkMissedPattern =
1066 GenerateOptimizationRemarkRegex(Diags, Args, A);
1067 NeedLocTracking = true;
1070 if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) {
1071 Opts.OptimizationRemarkAnalysisPattern =
1072 GenerateOptimizationRemarkRegex(Diags, Args, A);
1073 NeedLocTracking = true;
1076 Opts.DiagnosticsWithHotness =
1077 Args.hasArg(options::OPT_fdiagnostics_show_hotness);
1078 bool UsingSampleProfile = !Opts.SampleProfileFile.empty();
1079 bool UsingProfile = UsingSampleProfile ||
1080 (Opts.getProfileUse() != CodeGenOptions::ProfileNone);
1082 if (Opts.DiagnosticsWithHotness && !UsingProfile &&
1083 // An IR file will contain PGO as metadata
1084 IK.getLanguage() != InputKind::LLVM_IR)
1085 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo)
1086 << "-fdiagnostics-show-hotness";
1088 Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value(
1089 Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0);
1090 if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile)
1091 Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo)
1092 << "-fdiagnostics-hotness-threshold=";
1094 // If the user requested to use a sample profile for PGO, then the
1095 // backend will need to track source location information so the profile
1096 // can be incorporated into the IR.
1097 if (UsingSampleProfile)
1098 NeedLocTracking = true;
1100 // If the user requested a flag that requires source locations available in
1101 // the backend, make sure that the backend tracks source location information.
1102 if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo)
1103 Opts.setDebugInfo(codegenoptions::LocTrackingOnly);
1105 Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file);
1107 // Parse -fsanitize-recover= arguments.
1108 // FIXME: Report unrecoverable sanitizers incorrectly specified here.
1109 parseSanitizerKinds("-fsanitize-recover=",
1110 Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags,
1111 Opts.SanitizeRecover);
1112 parseSanitizerKinds("-fsanitize-trap=",
1113 Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags,
1116 Opts.CudaGpuBinaryFileName =
1117 Args.getLastArgValue(OPT_fcuda_include_gpubinary);
1119 Opts.Backchain = Args.hasArg(OPT_mbackchain);
1121 Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue(
1122 Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags);
1124 Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true);
1126 Opts.Addrsig = Args.hasArg(OPT_faddrsig);
1131 static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
1133 Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file);
1134 Opts.Targets = Args.getAllArgValues(OPT_MT);
1135 Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps);
1136 Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps);
1137 Opts.UsePhonyTargets = Args.hasArg(OPT_MP);
1138 Opts.ShowHeaderIncludes = Args.hasArg(OPT_H);
1139 Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file);
1140 Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG);
1141 if (Args.hasArg(OPT_show_includes)) {
1142 // Writing both /showIncludes and preprocessor output to stdout
1143 // would produce interleaved output, so use stderr for /showIncludes.
1144 // This behaves the same as cl.exe, when /E, /EP or /P are passed.
1145 if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P))
1146 Opts.ShowIncludesDest = ShowIncludesDestination::Stderr;
1148 Opts.ShowIncludesDest = ShowIncludesDestination::Stdout;
1150 Opts.ShowIncludesDest = ShowIncludesDestination::None;
1152 Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot);
1153 Opts.ModuleDependencyOutputDir =
1154 Args.getLastArgValue(OPT_module_dependency_dir);
1155 if (Args.hasArg(OPT_MV))
1156 Opts.OutputFormat = DependencyOutputFormat::NMake;
1157 // Add sanitizer blacklists as extra dependencies.
1158 // They won't be discovered by the regular preprocessor, so
1159 // we let make / ninja to know about this implicit dependency.
1160 Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry);
1161 // Only the -fmodule-file=<file> form.
1162 for (const auto *A : Args.filtered(OPT_fmodule_file)) {
1163 StringRef Val = A->getValue();
1164 if (Val.find('=') == StringRef::npos)
1165 Opts.ExtraDeps.push_back(Val);
1169 static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) {
1170 // Color diagnostics default to auto ("on" if terminal supports) in the driver
1171 // but default to off in cc1, needing an explicit OPT_fdiagnostics_color.
1172 // Support both clang's -f[no-]color-diagnostics and gcc's
1173 // -f[no-]diagnostics-colors[=never|always|auto].
1178 } ShowColors = DefaultColor ? Colors_Auto : Colors_Off;
1179 for (auto *A : Args) {
1180 const Option &O = A->getOption();
1181 if (O.matches(options::OPT_fcolor_diagnostics) ||
1182 O.matches(options::OPT_fdiagnostics_color)) {
1183 ShowColors = Colors_On;
1184 } else if (O.matches(options::OPT_fno_color_diagnostics) ||
1185 O.matches(options::OPT_fno_diagnostics_color)) {
1186 ShowColors = Colors_Off;
1187 } else if (O.matches(options::OPT_fdiagnostics_color_EQ)) {
1188 StringRef Value(A->getValue());
1189 if (Value == "always")
1190 ShowColors = Colors_On;
1191 else if (Value == "never")
1192 ShowColors = Colors_Off;
1193 else if (Value == "auto")
1194 ShowColors = Colors_Auto;
1197 return ShowColors == Colors_On ||
1198 (ShowColors == Colors_Auto &&
1199 llvm::sys::Process::StandardErrHasColors());
1202 static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes,
1203 DiagnosticsEngine *Diags) {
1204 bool Success = true;
1205 for (const auto &Prefix : VerifyPrefixes) {
1206 // Every prefix must start with a letter and contain only alphanumeric
1207 // characters, hyphens, and underscores.
1208 auto BadChar = std::find_if(Prefix.begin(), Prefix.end(),
1209 [](char C){return !isAlphanumeric(C)
1210 && C != '-' && C != '_';});
1211 if (BadChar != Prefix.end() || !isLetter(Prefix[0])) {
1214 Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix;
1215 Diags->Report(diag::note_drv_verify_prefix_spelling);
1222 bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
1223 DiagnosticsEngine *Diags,
1224 bool DefaultDiagColor, bool DefaultShowOpt) {
1225 bool Success = true;
1227 Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file);
1229 Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags))
1230 Opts.DiagnosticSerializationFile = A->getValue();
1231 Opts.IgnoreWarnings = Args.hasArg(OPT_w);
1232 Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros);
1233 Opts.Pedantic = Args.hasArg(OPT_pedantic);
1234 Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors);
1235 Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics);
1236 Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor);
1237 Opts.ShowColumn = Args.hasFlag(OPT_fshow_column,
1238 OPT_fno_show_column,
1240 Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info);
1241 Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location);
1242 Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths);
1243 Opts.ShowOptionNames =
1244 Args.hasFlag(OPT_fdiagnostics_show_option,
1245 OPT_fno_diagnostics_show_option, DefaultShowOpt);
1247 llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes));
1249 // Default behavior is to not to show note include stacks.
1250 Opts.ShowNoteIncludeStack = false;
1251 if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack,
1252 OPT_fno_diagnostics_show_note_include_stack))
1253 if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack))
1254 Opts.ShowNoteIncludeStack = true;
1256 StringRef ShowOverloads =
1257 Args.getLastArgValue(OPT_fshow_overloads_EQ, "all");
1258 if (ShowOverloads == "best")
1259 Opts.setShowOverloads(Ovl_Best);
1260 else if (ShowOverloads == "all")
1261 Opts.setShowOverloads(Ovl_All);
1265 Diags->Report(diag::err_drv_invalid_value)
1266 << Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args)
1270 StringRef ShowCategory =
1271 Args.getLastArgValue(OPT_fdiagnostics_show_category, "none");
1272 if (ShowCategory == "none")
1273 Opts.ShowCategories = 0;
1274 else if (ShowCategory == "id")
1275 Opts.ShowCategories = 1;
1276 else if (ShowCategory == "name")
1277 Opts.ShowCategories = 2;
1281 Diags->Report(diag::err_drv_invalid_value)
1282 << Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args)
1287 Args.getLastArgValue(OPT_fdiagnostics_format, "clang");
1288 if (Format == "clang")
1289 Opts.setFormat(DiagnosticOptions::Clang);
1290 else if (Format == "msvc")
1291 Opts.setFormat(DiagnosticOptions::MSVC);
1292 else if (Format == "msvc-fallback") {
1293 Opts.setFormat(DiagnosticOptions::MSVC);
1294 Opts.CLFallbackMode = true;
1295 } else if (Format == "vi")
1296 Opts.setFormat(DiagnosticOptions::Vi);
1300 Diags->Report(diag::err_drv_invalid_value)
1301 << Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args)
1305 Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info);
1306 Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits);
1307 Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location);
1308 Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ);
1309 Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ);
1310 if (Args.hasArg(OPT_verify))
1311 Opts.VerifyPrefixes.push_back("expected");
1312 // Keep VerifyPrefixes in its original order for the sake of diagnostics, and
1313 // then sort it to prepare for fast lookup using std::binary_search.
1314 if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) {
1315 Opts.VerifyDiagnostics = false;
1319 llvm::sort(Opts.VerifyPrefixes.begin(), Opts.VerifyPrefixes.end());
1320 DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None;
1321 Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=",
1322 Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ),
1324 if (Args.hasArg(OPT_verify_ignore_unexpected))
1325 DiagMask = DiagnosticLevelMask::All;
1326 Opts.setVerifyIgnoreUnexpected(DiagMask);
1327 Opts.ElideType = !Args.hasArg(OPT_fno_elide_type);
1328 Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree);
1329 Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags);
1330 Opts.MacroBacktraceLimit =
1331 getLastArgIntValue(Args, OPT_fmacro_backtrace_limit,
1332 DiagnosticOptions::DefaultMacroBacktraceLimit, Diags);
1333 Opts.TemplateBacktraceLimit = getLastArgIntValue(
1334 Args, OPT_ftemplate_backtrace_limit,
1335 DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags);
1336 Opts.ConstexprBacktraceLimit = getLastArgIntValue(
1337 Args, OPT_fconstexpr_backtrace_limit,
1338 DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags);
1339 Opts.SpellCheckingLimit = getLastArgIntValue(
1340 Args, OPT_fspell_checking_limit,
1341 DiagnosticOptions::DefaultSpellCheckingLimit, Diags);
1342 Opts.SnippetLineLimit = getLastArgIntValue(
1343 Args, OPT_fcaret_diagnostics_max_lines,
1344 DiagnosticOptions::DefaultSnippetLineLimit, Diags);
1345 Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop,
1346 DiagnosticOptions::DefaultTabStop, Diags);
1347 if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
1348 Opts.TabStop = DiagnosticOptions::DefaultTabStop;
1350 Diags->Report(diag::warn_ignoring_ftabstop_value)
1351 << Opts.TabStop << DiagnosticOptions::DefaultTabStop;
1353 Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags);
1354 addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings);
1355 addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks);
1360 static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) {
1361 Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory);
1364 /// Parse the argument to the -ftest-module-file-extension
1365 /// command-line argument.
1367 /// \returns true on error, false on success.
1368 static bool parseTestModuleFileExtensionArg(StringRef Arg,
1369 std::string &BlockName,
1370 unsigned &MajorVersion,
1371 unsigned &MinorVersion,
1373 std::string &UserInfo) {
1374 SmallVector<StringRef, 5> Args;
1375 Arg.split(Args, ':', 5);
1376 if (Args.size() < 5)
1379 BlockName = Args[0];
1380 if (Args[1].getAsInteger(10, MajorVersion)) return true;
1381 if (Args[2].getAsInteger(10, MinorVersion)) return true;
1382 if (Args[3].getAsInteger(2, Hashed)) return true;
1383 if (Args.size() > 4)
1388 static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
1389 DiagnosticsEngine &Diags,
1390 bool &IsHeaderFile) {
1391 Opts.ProgramAction = frontend::ParseSyntaxOnly;
1392 if (const Arg *A = Args.getLastArg(OPT_Action_Group)) {
1393 switch (A->getOption().getID()) {
1395 llvm_unreachable("Invalid option in group!");
1397 Opts.ProgramAction = frontend::ASTDeclList; break;
1399 case OPT_ast_dump_all:
1400 case OPT_ast_dump_lookups:
1401 Opts.ProgramAction = frontend::ASTDump; break;
1403 Opts.ProgramAction = frontend::ASTPrint; break;
1405 Opts.ProgramAction = frontend::ASTView; break;
1406 case OPT_compiler_options_dump:
1407 Opts.ProgramAction = frontend::DumpCompilerOptions; break;
1408 case OPT_dump_raw_tokens:
1409 Opts.ProgramAction = frontend::DumpRawTokens; break;
1410 case OPT_dump_tokens:
1411 Opts.ProgramAction = frontend::DumpTokens; break;
1413 Opts.ProgramAction = frontend::EmitAssembly; break;
1414 case OPT_emit_llvm_bc:
1415 Opts.ProgramAction = frontend::EmitBC; break;
1417 Opts.ProgramAction = frontend::EmitHTML; break;
1419 Opts.ProgramAction = frontend::EmitLLVM; break;
1420 case OPT_emit_llvm_only:
1421 Opts.ProgramAction = frontend::EmitLLVMOnly; break;
1422 case OPT_emit_codegen_only:
1423 Opts.ProgramAction = frontend::EmitCodeGenOnly; break;
1425 Opts.ProgramAction = frontend::EmitObj; break;
1427 Opts.FixItSuffix = A->getValue();
1430 Opts.ProgramAction = frontend::FixIt; break;
1431 case OPT_emit_module:
1432 Opts.ProgramAction = frontend::GenerateModule; break;
1433 case OPT_emit_module_interface:
1434 Opts.ProgramAction = frontend::GenerateModuleInterface; break;
1436 Opts.ProgramAction = frontend::GeneratePCH; break;
1438 Opts.ProgramAction = frontend::GeneratePTH; break;
1440 Opts.ProgramAction = frontend::InitOnly; break;
1441 case OPT_fsyntax_only:
1442 Opts.ProgramAction = frontend::ParseSyntaxOnly; break;
1443 case OPT_module_file_info:
1444 Opts.ProgramAction = frontend::ModuleFileInfo; break;
1445 case OPT_verify_pch:
1446 Opts.ProgramAction = frontend::VerifyPCH; break;
1447 case OPT_print_decl_contexts:
1448 Opts.ProgramAction = frontend::PrintDeclContext; break;
1449 case OPT_print_preamble:
1450 Opts.ProgramAction = frontend::PrintPreamble; break;
1452 Opts.ProgramAction = frontend::PrintPreprocessedInput; break;
1453 case OPT_templight_dump:
1454 Opts.ProgramAction = frontend::TemplightDump; break;
1455 case OPT_rewrite_macros:
1456 Opts.ProgramAction = frontend::RewriteMacros; break;
1457 case OPT_rewrite_objc:
1458 Opts.ProgramAction = frontend::RewriteObjC; break;
1459 case OPT_rewrite_test:
1460 Opts.ProgramAction = frontend::RewriteTest; break;
1462 Opts.ProgramAction = frontend::RunAnalysis; break;
1464 Opts.ProgramAction = frontend::MigrateSource; break;
1466 Opts.ProgramAction = frontend::RunPreprocessorOnly; break;
1470 if (const Arg* A = Args.getLastArg(OPT_plugin)) {
1471 Opts.Plugins.emplace_back(A->getValue(0));
1472 Opts.ProgramAction = frontend::PluginAction;
1473 Opts.ActionName = A->getValue();
1475 Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin);
1476 for (const auto *AA : Args.filtered(OPT_plugin_arg))
1477 Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1));
1479 for (const std::string &Arg :
1480 Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) {
1481 std::string BlockName;
1482 unsigned MajorVersion;
1483 unsigned MinorVersion;
1485 std::string UserInfo;
1486 if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion,
1487 MinorVersion, Hashed, UserInfo)) {
1488 Diags.Report(diag::err_test_module_file_extension_format) << Arg;
1493 // Add the testing module file extension.
1494 Opts.ModuleFileExtensions.push_back(
1495 std::make_shared<TestModuleFileExtension>(
1496 BlockName, MajorVersion, MinorVersion, Hashed, UserInfo));
1499 if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) {
1500 Opts.CodeCompletionAt =
1501 ParsedSourceLocation::FromString(A->getValue());
1502 if (Opts.CodeCompletionAt.FileName.empty())
1503 Diags.Report(diag::err_drv_invalid_value)
1504 << A->getAsString(Args) << A->getValue();
1506 Opts.DisableFree = Args.hasArg(OPT_disable_free);
1508 Opts.OutputFile = Args.getLastArgValue(OPT_o);
1509 Opts.Plugins = Args.getAllArgValues(OPT_load);
1510 Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch);
1511 Opts.ShowHelp = Args.hasArg(OPT_help);
1512 Opts.ShowStats = Args.hasArg(OPT_print_stats);
1513 Opts.ShowTimers = Args.hasArg(OPT_ftime_report);
1514 Opts.ShowVersion = Args.hasArg(OPT_version);
1515 Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge);
1516 Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
1517 Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can);
1518 Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings);
1519 Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile);
1520 Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp);
1521 Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump);
1522 Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all);
1523 Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter);
1524 Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups);
1525 Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index);
1526 Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex;
1527 Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file);
1528 // Only the -fmodule-file=<file> form.
1529 for (const auto *A : Args.filtered(OPT_fmodule_file)) {
1530 StringRef Val = A->getValue();
1531 if (Val.find('=') == StringRef::npos)
1532 Opts.ModuleFiles.push_back(Val);
1534 Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ);
1535 Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files);
1536 Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp);
1538 Opts.CodeCompleteOpts.IncludeMacros
1539 = Args.hasArg(OPT_code_completion_macros);
1540 Opts.CodeCompleteOpts.IncludeCodePatterns
1541 = Args.hasArg(OPT_code_completion_patterns);
1542 Opts.CodeCompleteOpts.IncludeGlobals
1543 = !Args.hasArg(OPT_no_code_completion_globals);
1544 Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls
1545 = !Args.hasArg(OPT_no_code_completion_ns_level_decls);
1546 Opts.CodeCompleteOpts.IncludeBriefComments
1547 = Args.hasArg(OPT_code_completion_brief_comments);
1548 Opts.CodeCompleteOpts.IncludeFixIts
1549 = Args.hasArg(OPT_code_completion_with_fixits);
1551 Opts.OverrideRecordLayoutsFile
1552 = Args.getLastArgValue(OPT_foverride_record_layout_EQ);
1554 llvm::Triple::normalize(Args.getLastArgValue(OPT_aux_triple));
1555 Opts.StatsFile = Args.getLastArgValue(OPT_stats_file);
1557 if (const Arg *A = Args.getLastArg(OPT_arcmt_check,
1559 OPT_arcmt_migrate)) {
1560 switch (A->getOption().getID()) {
1562 llvm_unreachable("missed a case");
1563 case OPT_arcmt_check:
1564 Opts.ARCMTAction = FrontendOptions::ARCMT_Check;
1566 case OPT_arcmt_modify:
1567 Opts.ARCMTAction = FrontendOptions::ARCMT_Modify;
1569 case OPT_arcmt_migrate:
1570 Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate;
1574 Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory);
1575 Opts.ARCMTMigrateReportOut
1576 = Args.getLastArgValue(OPT_arcmt_migrate_report_output);
1577 Opts.ARCMTMigrateEmitARCErrors
1578 = Args.hasArg(OPT_arcmt_migrate_emit_arc_errors);
1580 if (Args.hasArg(OPT_objcmt_migrate_literals))
1581 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals;
1582 if (Args.hasArg(OPT_objcmt_migrate_subscripting))
1583 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting;
1584 if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax))
1585 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax;
1586 if (Args.hasArg(OPT_objcmt_migrate_property))
1587 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property;
1588 if (Args.hasArg(OPT_objcmt_migrate_readonly_property))
1589 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty;
1590 if (Args.hasArg(OPT_objcmt_migrate_readwrite_property))
1591 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty;
1592 if (Args.hasArg(OPT_objcmt_migrate_annotation))
1593 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation;
1594 if (Args.hasArg(OPT_objcmt_returns_innerpointer_property))
1595 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty;
1596 if (Args.hasArg(OPT_objcmt_migrate_instancetype))
1597 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype;
1598 if (Args.hasArg(OPT_objcmt_migrate_nsmacros))
1599 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros;
1600 if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance))
1601 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance;
1602 if (Args.hasArg(OPT_objcmt_atomic_property))
1603 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty;
1604 if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly))
1605 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty;
1606 if (Args.hasArg(OPT_objcmt_migrate_designated_init))
1607 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer;
1608 if (Args.hasArg(OPT_objcmt_migrate_all))
1609 Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls;
1611 Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path);
1613 if (Opts.ARCMTAction != FrontendOptions::ARCMT_None &&
1614 Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) {
1615 Diags.Report(diag::err_drv_argument_not_allowed_with)
1616 << "ARC migration" << "ObjC migration";
1619 InputKind DashX(InputKind::Unknown);
1620 if (const Arg *A = Args.getLastArg(OPT_x)) {
1621 StringRef XValue = A->getValue();
1623 // Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'.
1624 // FIXME: Supporting '<lang>-header-cpp-output' would be useful.
1625 bool Preprocessed = XValue.consume_back("-cpp-output");
1626 bool ModuleMap = XValue.consume_back("-module-map");
1628 !Preprocessed && !ModuleMap && XValue.consume_back("-header");
1630 // Principal languages.
1631 DashX = llvm::StringSwitch<InputKind>(XValue)
1632 .Case("c", InputKind::C)
1633 .Case("cl", InputKind::OpenCL)
1634 .Case("cuda", InputKind::CUDA)
1635 .Case("hip", InputKind::HIP)
1636 .Case("c++", InputKind::CXX)
1637 .Case("objective-c", InputKind::ObjC)
1638 .Case("objective-c++", InputKind::ObjCXX)
1639 .Case("renderscript", InputKind::RenderScript)
1640 .Default(InputKind::Unknown);
1642 // "objc[++]-cpp-output" is an acceptable synonym for
1643 // "objective-c[++]-cpp-output".
1644 if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap)
1645 DashX = llvm::StringSwitch<InputKind>(XValue)
1646 .Case("objc", InputKind::ObjC)
1647 .Case("objc++", InputKind::ObjCXX)
1648 .Default(InputKind::Unknown);
1650 // Some special cases cannot be combined with suffixes.
1651 if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile)
1652 DashX = llvm::StringSwitch<InputKind>(XValue)
1653 .Case("cpp-output", InputKind(InputKind::C).getPreprocessed())
1654 .Case("assembler-with-cpp", InputKind::Asm)
1655 .Cases("ast", "pcm",
1656 InputKind(InputKind::Unknown, InputKind::Precompiled))
1657 .Case("ir", InputKind::LLVM_IR)
1658 .Default(InputKind::Unknown);
1660 if (DashX.isUnknown())
1661 Diags.Report(diag::err_drv_invalid_value)
1662 << A->getAsString(Args) << A->getValue();
1665 DashX = DashX.getPreprocessed();
1667 DashX = DashX.withFormat(InputKind::ModuleMap);
1670 // '-' is the default input if none is given.
1671 std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT);
1672 Opts.Inputs.clear();
1674 Inputs.push_back("-");
1675 for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
1676 InputKind IK = DashX;
1677 if (IK.isUnknown()) {
1678 IK = FrontendOptions::getInputKindForExtension(
1679 StringRef(Inputs[i]).rsplit('.').second);
1680 // FIXME: Warn on this?
1683 // FIXME: Remove this hack.
1688 // The -emit-module action implicitly takes a module map.
1689 if (Opts.ProgramAction == frontend::GenerateModule &&
1690 IK.getFormat() == InputKind::Source)
1691 IK = IK.withFormat(InputKind::ModuleMap);
1693 Opts.Inputs.emplace_back(std::move(Inputs[i]), IK);
1699 std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
1701 std::string ClangExecutable =
1702 llvm::sys::fs::getMainExecutable(Argv0, MainAddr);
1703 StringRef Dir = llvm::sys::path::parent_path(ClangExecutable);
1705 // Compute the path to the resource directory.
1706 StringRef ClangResourceDir(CLANG_RESOURCE_DIR);
1707 SmallString<128> P(Dir);
1708 if (ClangResourceDir != "")
1709 llvm::sys::path::append(P, ClangResourceDir);
1711 llvm::sys::path::append(P, "..", Twine("lib") + CLANG_LIBDIR_SUFFIX,
1712 "clang", CLANG_VERSION_STRING);
1717 static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args,
1718 const std::string &WorkingDir) {
1719 Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/");
1720 Opts.Verbose = Args.hasArg(OPT_v);
1721 Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
1722 Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc);
1723 Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
1724 if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ))
1725 Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0);
1726 Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir);
1728 // Canonicalize -fmodules-cache-path before storing it.
1729 SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path));
1730 if (!(P.empty() || llvm::sys::path::is_absolute(P))) {
1731 if (WorkingDir.empty())
1732 llvm::sys::fs::make_absolute(P);
1734 llvm::sys::fs::make_absolute(WorkingDir, P);
1736 llvm::sys::path::remove_dots(P);
1737 Opts.ModuleCachePath = P.str();
1739 Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path);
1740 // Only the -fmodule-file=<name>=<file> form.
1741 for (const auto *A : Args.filtered(OPT_fmodule_file)) {
1742 StringRef Val = A->getValue();
1743 if (Val.find('=') != StringRef::npos)
1744 Opts.PrebuiltModuleFiles.insert(Val.split('='));
1746 for (const auto *A : Args.filtered(OPT_fprebuilt_module_path))
1747 Opts.AddPrebuiltModulePath(A->getValue());
1748 Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash);
1749 Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content);
1750 Opts.ModulesValidateDiagnosticOptions =
1751 !Args.hasArg(OPT_fmodules_disable_diagnostic_validation);
1752 Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps);
1753 Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd);
1754 Opts.ModuleCachePruneInterval =
1755 getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60);
1756 Opts.ModuleCachePruneAfter =
1757 getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60);
1758 Opts.ModulesValidateOncePerBuildSession =
1759 Args.hasArg(OPT_fmodules_validate_once_per_build_session);
1760 Opts.BuildSessionTimestamp =
1761 getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0);
1762 Opts.ModulesValidateSystemHeaders =
1763 Args.hasArg(OPT_fmodules_validate_system_headers);
1764 if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ))
1765 Opts.ModuleFormat = A->getValue();
1767 for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) {
1768 StringRef MacroDef = A->getValue();
1769 Opts.ModulesIgnoreMacros.insert(
1770 llvm::CachedHashString(MacroDef.split('=').first));
1773 // Add -I..., -F..., and -index-header-map options in order.
1774 bool IsIndexHeaderMap = false;
1775 bool IsSysrootSpecified =
1776 Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot);
1777 for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) {
1778 if (A->getOption().matches(OPT_index_header_map)) {
1779 // -index-header-map applies to the next -I or -F.
1780 IsIndexHeaderMap = true;
1784 frontend::IncludeDirGroup Group =
1785 IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled;
1787 bool IsFramework = A->getOption().matches(OPT_F);
1788 std::string Path = A->getValue();
1790 if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') {
1791 SmallString<32> Buffer;
1792 llvm::sys::path::append(Buffer, Opts.Sysroot,
1793 llvm::StringRef(A->getValue()).substr(1));
1794 Path = Buffer.str();
1797 Opts.AddPath(Path, Group, IsFramework,
1798 /*IgnoreSysroot*/ true);
1799 IsIndexHeaderMap = false;
1802 // Add -iprefix/-iwithprefix/-iwithprefixbefore options.
1803 StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
1804 for (const auto *A :
1805 Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) {
1806 if (A->getOption().matches(OPT_iprefix))
1807 Prefix = A->getValue();
1808 else if (A->getOption().matches(OPT_iwithprefix))
1809 Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true);
1811 Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true);
1814 for (const auto *A : Args.filtered(OPT_idirafter))
1815 Opts.AddPath(A->getValue(), frontend::After, false, true);
1816 for (const auto *A : Args.filtered(OPT_iquote))
1817 Opts.AddPath(A->getValue(), frontend::Quoted, false, true);
1818 for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot))
1819 Opts.AddPath(A->getValue(), frontend::System, false,
1820 !A->getOption().matches(OPT_iwithsysroot));
1821 for (const auto *A : Args.filtered(OPT_iframework))
1822 Opts.AddPath(A->getValue(), frontend::System, true, true);
1823 for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot))
1824 Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true,
1825 /*IgnoreSysRoot=*/false);
1827 // Add the paths for the various language specific isystem flags.
1828 for (const auto *A : Args.filtered(OPT_c_isystem))
1829 Opts.AddPath(A->getValue(), frontend::CSystem, false, true);
1830 for (const auto *A : Args.filtered(OPT_cxx_isystem))
1831 Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true);
1832 for (const auto *A : Args.filtered(OPT_objc_isystem))
1833 Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true);
1834 for (const auto *A : Args.filtered(OPT_objcxx_isystem))
1835 Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true);
1837 // Add the internal paths from a driver that detects standard include paths.
1838 for (const auto *A :
1839 Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) {
1840 frontend::IncludeDirGroup Group = frontend::System;
1841 if (A->getOption().matches(OPT_internal_externc_isystem))
1842 Group = frontend::ExternCSystem;
1843 Opts.AddPath(A->getValue(), Group, false, true);
1846 // Add the path prefixes which are implicitly treated as being system headers.
1847 for (const auto *A :
1848 Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix))
1849 Opts.AddSystemHeaderPrefix(
1850 A->getValue(), A->getOption().matches(OPT_system_header_prefix));
1852 for (const auto *A : Args.filtered(OPT_ivfsoverlay))
1853 Opts.AddVFSOverlayFile(A->getValue());
1856 void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK,
1857 const llvm::Triple &T,
1858 PreprocessorOptions &PPOpts,
1859 LangStandard::Kind LangStd) {
1860 // Set some properties which depend solely on the input kind; it would be nice
1861 // to move these to the language standard, and have the driver resolve the
1862 // input kind + language standard.
1864 // FIXME: Perhaps a better model would be for a single source file to have
1865 // multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std)
1866 // simultaneously active?
1867 if (IK.getLanguage() == InputKind::Asm) {
1868 Opts.AsmPreprocessor = 1;
1869 } else if (IK.isObjectiveC()) {
1870 Opts.ObjC1 = Opts.ObjC2 = 1;
1873 if (LangStd == LangStandard::lang_unspecified) {
1874 // Based on the base language, pick one.
1875 switch (IK.getLanguage()) {
1876 case InputKind::Unknown:
1877 case InputKind::LLVM_IR:
1878 llvm_unreachable("Invalid input kind!");
1879 case InputKind::OpenCL:
1880 LangStd = LangStandard::lang_opencl10;
1882 case InputKind::CUDA:
1883 LangStd = LangStandard::lang_cuda;
1885 case InputKind::Asm:
1887 #if defined(CLANG_DEFAULT_STD_C)
1888 LangStd = CLANG_DEFAULT_STD_C;
1890 // The PS4 uses C99 as the default C standard.
1892 LangStd = LangStandard::lang_gnu99;
1894 LangStd = LangStandard::lang_gnu11;
1897 case InputKind::ObjC:
1898 #if defined(CLANG_DEFAULT_STD_C)
1899 LangStd = CLANG_DEFAULT_STD_C;
1901 LangStd = LangStandard::lang_gnu11;
1904 case InputKind::CXX:
1905 case InputKind::ObjCXX:
1906 #if defined(CLANG_DEFAULT_STD_CXX)
1907 LangStd = CLANG_DEFAULT_STD_CXX;
1909 LangStd = LangStandard::lang_gnucxx14;
1912 case InputKind::RenderScript:
1913 LangStd = LangStandard::lang_c99;
1915 case InputKind::HIP:
1916 LangStd = LangStandard::lang_hip;
1921 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
1922 Opts.LineComment = Std.hasLineComments();
1923 Opts.C99 = Std.isC99();
1924 Opts.C11 = Std.isC11();
1925 Opts.C17 = Std.isC17();
1926 Opts.CPlusPlus = Std.isCPlusPlus();
1927 Opts.CPlusPlus11 = Std.isCPlusPlus11();
1928 Opts.CPlusPlus14 = Std.isCPlusPlus14();
1929 Opts.CPlusPlus17 = Std.isCPlusPlus17();
1930 Opts.CPlusPlus2a = Std.isCPlusPlus2a();
1931 Opts.Digraphs = Std.hasDigraphs();
1932 Opts.GNUMode = Std.isGNUMode();
1933 Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus;
1934 Opts.HexFloats = Std.hasHexFloats();
1935 Opts.ImplicitInt = Std.hasImplicitInt();
1937 // Set OpenCL Version.
1938 Opts.OpenCL = Std.isOpenCL();
1939 if (LangStd == LangStandard::lang_opencl10)
1940 Opts.OpenCLVersion = 100;
1941 else if (LangStd == LangStandard::lang_opencl11)
1942 Opts.OpenCLVersion = 110;
1943 else if (LangStd == LangStandard::lang_opencl12)
1944 Opts.OpenCLVersion = 120;
1945 else if (LangStd == LangStandard::lang_opencl20)
1946 Opts.OpenCLVersion = 200;
1947 else if (LangStd == LangStandard::lang_openclcpp)
1948 Opts.OpenCLCPlusPlusVersion = 100;
1950 // OpenCL has some additional defaults.
1954 Opts.LaxVectorConversions = 0;
1955 Opts.setDefaultFPContractMode(LangOptions::FPC_On);
1956 Opts.NativeHalfType = 1;
1957 Opts.NativeHalfArgsAndReturns = 1;
1958 Opts.OpenCLCPlusPlus = Opts.CPlusPlus;
1959 // Include default header file for OpenCL.
1960 if (Opts.IncludeDefaultHeader) {
1961 PPOpts.Includes.push_back("opencl-c.h");
1965 Opts.HIP = IK.getLanguage() == InputKind::HIP;
1966 Opts.CUDA = IK.getLanguage() == InputKind::CUDA || Opts.HIP;
1968 // Set default FP_CONTRACT to FAST.
1969 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast);
1971 Opts.RenderScript = IK.getLanguage() == InputKind::RenderScript;
1972 if (Opts.RenderScript) {
1973 Opts.NativeHalfType = 1;
1974 Opts.NativeHalfArgsAndReturns = 1;
1977 // OpenCL and C++ both have bool, true, false keywords.
1978 Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
1980 // OpenCL has half keyword
1981 Opts.Half = Opts.OpenCL;
1983 // C++ has wchar_t keyword.
1984 Opts.WChar = Opts.CPlusPlus;
1986 Opts.GNUKeywords = Opts.GNUMode;
1987 Opts.CXXOperatorNames = Opts.CPlusPlus;
1989 Opts.AlignedAllocation = Opts.CPlusPlus17;
1991 Opts.DollarIdents = !Opts.AsmPreprocessor;
1994 /// Attempt to parse a visibility value out of the given argument.
1995 static Visibility parseVisibility(Arg *arg, ArgList &args,
1996 DiagnosticsEngine &diags) {
1997 StringRef value = arg->getValue();
1998 if (value == "default") {
1999 return DefaultVisibility;
2000 } else if (value == "hidden" || value == "internal") {
2001 return HiddenVisibility;
2002 } else if (value == "protected") {
2003 // FIXME: diagnose if target does not support protected visibility
2004 return ProtectedVisibility;
2007 diags.Report(diag::err_drv_invalid_value)
2008 << arg->getAsString(args) << value;
2009 return DefaultVisibility;
2012 /// Check if input file kind and language standard are compatible.
2013 static bool IsInputCompatibleWithStandard(InputKind IK,
2014 const LangStandard &S) {
2015 switch (IK.getLanguage()) {
2016 case InputKind::Unknown:
2017 case InputKind::LLVM_IR:
2018 llvm_unreachable("should not parse language flags for this input");
2021 case InputKind::ObjC:
2022 case InputKind::RenderScript:
2023 return S.getLanguage() == InputKind::C;
2025 case InputKind::OpenCL:
2026 return S.getLanguage() == InputKind::OpenCL;
2028 case InputKind::CXX:
2029 case InputKind::ObjCXX:
2030 return S.getLanguage() == InputKind::CXX;
2032 case InputKind::CUDA:
2033 // FIXME: What -std= values should be permitted for CUDA compilations?
2034 return S.getLanguage() == InputKind::CUDA ||
2035 S.getLanguage() == InputKind::CXX;
2037 case InputKind::HIP:
2038 return S.getLanguage() == InputKind::CXX ||
2039 S.getLanguage() == InputKind::HIP;
2041 case InputKind::Asm:
2042 // Accept (and ignore) all -std= values.
2043 // FIXME: The -std= value is not ignored; it affects the tokenization
2044 // and preprocessing rules if we're preprocessing this asm input.
2048 llvm_unreachable("unexpected input language");
2051 /// Get language name for given input kind.
2052 static const StringRef GetInputKindName(InputKind IK) {
2053 switch (IK.getLanguage()) {
2056 case InputKind::ObjC:
2057 return "Objective-C";
2058 case InputKind::CXX:
2060 case InputKind::ObjCXX:
2061 return "Objective-C++";
2062 case InputKind::OpenCL:
2064 case InputKind::CUDA:
2066 case InputKind::RenderScript:
2067 return "RenderScript";
2068 case InputKind::HIP:
2071 case InputKind::Asm:
2073 case InputKind::LLVM_IR:
2076 case InputKind::Unknown:
2079 llvm_unreachable("unknown input language");
2082 static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
2083 const TargetOptions &TargetOpts,
2084 PreprocessorOptions &PPOpts,
2085 DiagnosticsEngine &Diags) {
2086 // FIXME: Cleanup per-file based stuff.
2087 LangStandard::Kind LangStd = LangStandard::lang_unspecified;
2088 if (const Arg *A = Args.getLastArg(OPT_std_EQ)) {
2089 LangStd = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
2090 #define LANGSTANDARD(id, name, lang, desc, features) \
2091 .Case(name, LangStandard::lang_##id)
2092 #define LANGSTANDARD_ALIAS(id, alias) \
2093 .Case(alias, LangStandard::lang_##id)
2094 #include "clang/Frontend/LangStandards.def"
2095 .Default(LangStandard::lang_unspecified);
2096 if (LangStd == LangStandard::lang_unspecified) {
2097 Diags.Report(diag::err_drv_invalid_value)
2098 << A->getAsString(Args) << A->getValue();
2099 // Report supported standards with short description.
2100 for (unsigned KindValue = 0;
2101 KindValue != LangStandard::lang_unspecified;
2103 const LangStandard &Std = LangStandard::getLangStandardForKind(
2104 static_cast<LangStandard::Kind>(KindValue));
2105 if (IsInputCompatibleWithStandard(IK, Std)) {
2106 auto Diag = Diags.Report(diag::note_drv_use_standard);
2107 Diag << Std.getName() << Std.getDescription();
2108 unsigned NumAliases = 0;
2109 #define LANGSTANDARD(id, name, lang, desc, features)
2110 #define LANGSTANDARD_ALIAS(id, alias) \
2111 if (KindValue == LangStandard::lang_##id) ++NumAliases;
2112 #define LANGSTANDARD_ALIAS_DEPR(id, alias)
2113 #include "clang/Frontend/LangStandards.def"
2115 #define LANGSTANDARD(id, name, lang, desc, features)
2116 #define LANGSTANDARD_ALIAS(id, alias) \
2117 if (KindValue == LangStandard::lang_##id) Diag << alias;
2118 #define LANGSTANDARD_ALIAS_DEPR(id, alias)
2119 #include "clang/Frontend/LangStandards.def"
2123 // Valid standard, check to make sure language and standard are
2125 const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
2126 if (!IsInputCompatibleWithStandard(IK, Std)) {
2127 Diags.Report(diag::err_drv_argument_not_allowed_with)
2128 << A->getAsString(Args) << GetInputKindName(IK);
2133 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) {
2134 StringRef Name = A->getValue();
2135 if (Name == "full" || Name == "branch") {
2136 Opts.CFProtectionBranch = 1;
2139 // -cl-std only applies for OpenCL language standards.
2140 // Override the -std option in this case.
2141 if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) {
2142 LangStandard::Kind OpenCLLangStd
2143 = llvm::StringSwitch<LangStandard::Kind>(A->getValue())
2144 .Cases("cl", "CL", LangStandard::lang_opencl10)
2145 .Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11)
2146 .Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12)
2147 .Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20)
2148 .Case("c++", LangStandard::lang_openclcpp)
2149 .Default(LangStandard::lang_unspecified);
2151 if (OpenCLLangStd == LangStandard::lang_unspecified) {
2152 Diags.Report(diag::err_drv_invalid_value)
2153 << A->getAsString(Args) << A->getValue();
2156 LangStd = OpenCLLangStd;
2159 Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header);
2161 llvm::Triple T(TargetOpts.Triple);
2162 CompilerInvocation::setLangDefaults(Opts, IK, T, PPOpts, LangStd);
2164 // -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0.
2165 // This option should be deprecated for CL > 1.0 because
2166 // this option was added for compatibility with OpenCL 1.0.
2167 if (Args.getLastArg(OPT_cl_strict_aliasing)
2168 && Opts.OpenCLVersion > 100) {
2169 Diags.Report(diag::warn_option_invalid_ocl_version)
2170 << Opts.getOpenCLVersionTuple().getAsString()
2171 << Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args);
2174 // We abuse '-f[no-]gnu-keywords' to force overriding all GNU-extension
2175 // keywords. This behavior is provided by GCC's poorly named '-fasm' flag,
2176 // while a subset (the non-C++ GNU keywords) is provided by GCC's
2177 // '-fgnu-keywords'. Clang conflates the two for simplicity under the single
2178 // name, as it doesn't seem a useful distinction.
2179 Opts.GNUKeywords = Args.hasFlag(OPT_fgnu_keywords, OPT_fno_gnu_keywords,
2182 Opts.Digraphs = Args.hasFlag(OPT_fdigraphs, OPT_fno_digraphs, Opts.Digraphs);
2184 if (Args.hasArg(OPT_fno_operator_names))
2185 Opts.CXXOperatorNames = 0;
2187 if (Args.hasArg(OPT_fcuda_is_device))
2188 Opts.CUDAIsDevice = 1;
2190 if (Args.hasArg(OPT_fcuda_allow_variadic_functions))
2191 Opts.CUDAAllowVariadicFunctions = 1;
2193 if (Args.hasArg(OPT_fno_cuda_host_device_constexpr))
2194 Opts.CUDAHostDeviceConstexpr = 0;
2196 if (Opts.CUDAIsDevice && Args.hasArg(OPT_fcuda_approx_transcendentals))
2197 Opts.CUDADeviceApproxTranscendentals = 1;
2199 Opts.CUDARelocatableDeviceCode = Args.hasArg(OPT_fcuda_rdc);
2202 if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) {
2203 StringRef value = arg->getValue();
2204 if (Opts.ObjCRuntime.tryParse(value))
2205 Diags.Report(diag::err_drv_unknown_objc_runtime) << value;
2208 if (Args.hasArg(OPT_fobjc_gc_only))
2209 Opts.setGC(LangOptions::GCOnly);
2210 else if (Args.hasArg(OPT_fobjc_gc))
2211 Opts.setGC(LangOptions::HybridGC);
2212 else if (Args.hasArg(OPT_fobjc_arc)) {
2213 Opts.ObjCAutoRefCount = 1;
2214 if (!Opts.ObjCRuntime.allowsARC())
2215 Diags.Report(diag::err_arc_unsupported_on_runtime);
2218 // ObjCWeakRuntime tracks whether the runtime supports __weak, not
2219 // whether the feature is actually enabled. This is predominantly
2220 // determined by -fobjc-runtime, but we allow it to be overridden
2221 // from the command line for testing purposes.
2222 if (Args.hasArg(OPT_fobjc_runtime_has_weak))
2223 Opts.ObjCWeakRuntime = 1;
2225 Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak();
2227 // ObjCWeak determines whether __weak is actually enabled.
2228 // Note that we allow -fno-objc-weak to disable this even in ARC mode.
2229 if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) {
2230 if (!weakArg->getOption().matches(OPT_fobjc_weak)) {
2231 assert(!Opts.ObjCWeak);
2232 } else if (Opts.getGC() != LangOptions::NonGC) {
2233 Diags.Report(diag::err_objc_weak_with_gc);
2234 } else if (!Opts.ObjCWeakRuntime) {
2235 Diags.Report(diag::err_objc_weak_unsupported);
2239 } else if (Opts.ObjCAutoRefCount) {
2240 Opts.ObjCWeak = Opts.ObjCWeakRuntime;
2243 if (Args.hasArg(OPT_fno_objc_infer_related_result_type))
2244 Opts.ObjCInferRelatedResultType = 0;
2246 if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime))
2247 Opts.ObjCSubscriptingLegacyRuntime =
2248 (Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX);
2251 if (Args.hasArg(OPT_fgnu89_inline)) {
2253 Diags.Report(diag::err_drv_argument_not_allowed_with)
2254 << "-fgnu89-inline" << GetInputKindName(IK);
2259 if (Args.hasArg(OPT_fapple_kext)) {
2260 if (!Opts.CPlusPlus)
2261 Diags.Report(diag::warn_c_kext);
2266 if (Args.hasArg(OPT_print_ivar_layout))
2267 Opts.ObjCGCBitmapPrint = 1;
2268 if (Args.hasArg(OPT_fno_constant_cfstrings))
2269 Opts.NoConstantCFStrings = 1;
2271 if (Args.hasArg(OPT_fzvector))
2274 if (Args.hasArg(OPT_pthread))
2275 Opts.POSIXThreads = 1;
2277 // The value-visibility mode defaults to "default".
2278 if (Arg *visOpt = Args.getLastArg(OPT_fvisibility)) {
2279 Opts.setValueVisibilityMode(parseVisibility(visOpt, Args, Diags));
2281 Opts.setValueVisibilityMode(DefaultVisibility);
2284 // The type-visibility mode defaults to the value-visibility mode.
2285 if (Arg *typeVisOpt = Args.getLastArg(OPT_ftype_visibility)) {
2286 Opts.setTypeVisibilityMode(parseVisibility(typeVisOpt, Args, Diags));
2288 Opts.setTypeVisibilityMode(Opts.getValueVisibilityMode());
2291 if (Args.hasArg(OPT_fvisibility_inlines_hidden))
2292 Opts.InlineVisibilityHidden = 1;
2294 if (Args.hasArg(OPT_ftrapv)) {
2295 Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
2296 // Set the handler, if one is specified.
2297 Opts.OverflowHandler =
2298 Args.getLastArgValue(OPT_ftrapv_handler);
2300 else if (Args.hasArg(OPT_fwrapv))
2301 Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
2303 Opts.MSVCCompat = Args.hasArg(OPT_fms_compatibility);
2304 Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions);
2305 Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt;
2306 Opts.MSCompatibilityVersion = 0;
2307 if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) {
2309 if (VT.tryParse(A->getValue()))
2310 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
2312 Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 +
2313 VT.getMinor().getValueOr(0) * 100000 +
2314 VT.getSubminor().getValueOr(0);
2317 // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs
2318 // is specified, or -std is set to a conforming mode.
2319 // Trigraphs are disabled by default in c++1z onwards.
2320 Opts.Trigraphs = !Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17;
2322 Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs);
2324 Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers,
2325 OPT_fno_dollars_in_identifiers,
2327 Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
2328 Opts.VtorDispMode = getLastArgIntValue(Args, OPT_vtordisp_mode_EQ, 1, Diags);
2329 Opts.Borland = Args.hasArg(OPT_fborland_extensions);
2330 Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings);
2331 Opts.ConstStrings = Args.hasFlag(OPT_fconst_strings, OPT_fno_const_strings,
2333 if (Args.hasArg(OPT_fno_lax_vector_conversions))
2334 Opts.LaxVectorConversions = 0;
2335 if (Args.hasArg(OPT_fno_threadsafe_statics))
2336 Opts.ThreadsafeStatics = 0;
2337 Opts.Exceptions = Args.hasArg(OPT_fexceptions);
2338 Opts.ObjCExceptions = Args.hasArg(OPT_fobjc_exceptions);
2339 Opts.CXXExceptions = Args.hasArg(OPT_fcxx_exceptions);
2343 Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) &&
2345 Opts.PaddingOnUnsignedFixedPoint =
2346 Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point,
2347 OPT_fno_padding_on_unsigned_fixed_point,
2348 /*Default=*/false) &&
2351 // Handle exception personalities
2352 Arg *A = Args.getLastArg(options::OPT_fsjlj_exceptions,
2353 options::OPT_fseh_exceptions,
2354 options::OPT_fdwarf_exceptions);
2356 const Option &Opt = A->getOption();
2357 llvm::Triple T(TargetOpts.Triple);
2358 if (T.isWindowsMSVCEnvironment())
2359 Diags.Report(diag::err_fe_invalid_exception_model)
2360 << Opt.getName() << T.str();
2362 Opts.SjLjExceptions = Opt.matches(options::OPT_fsjlj_exceptions);
2363 Opts.SEHExceptions = Opt.matches(options::OPT_fseh_exceptions);
2364 Opts.DWARFExceptions = Opt.matches(options::OPT_fdwarf_exceptions);
2367 Opts.ExternCNoUnwind = Args.hasArg(OPT_fexternc_nounwind);
2368 Opts.TraditionalCPP = Args.hasArg(OPT_traditional_cpp);
2370 Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti);
2371 Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data);
2372 Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL
2373 && Opts.OpenCLVersion == 200);
2374 Opts.BlocksRuntimeOptional = Args.hasArg(OPT_fblocks_runtime_optional);
2375 Opts.CoroutinesTS = Args.hasArg(OPT_fcoroutines_ts);
2377 // Enable [[]] attributes in C++11 by default.
2378 Opts.DoubleSquareBracketAttributes =
2379 Args.hasFlag(OPT_fdouble_square_bracket_attributes,
2380 OPT_fno_double_square_bracket_attributes, Opts.CPlusPlus11);
2382 Opts.ModulesTS = Args.hasArg(OPT_fmodules_ts);
2383 Opts.Modules = Args.hasArg(OPT_fmodules) || Opts.ModulesTS;
2384 Opts.ModulesStrictDeclUse = Args.hasArg(OPT_fmodules_strict_decluse);
2385 Opts.ModulesDeclUse =
2386 Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse;
2387 Opts.ModulesLocalVisibility =
2388 Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS;
2389 Opts.ModulesCodegen = Args.hasArg(OPT_fmodules_codegen);
2390 Opts.ModulesDebugInfo = Args.hasArg(OPT_fmodules_debuginfo);
2391 Opts.ModulesSearchAll = Opts.Modules &&
2392 !Args.hasArg(OPT_fno_modules_search_all) &&
2393 Args.hasArg(OPT_fmodules_search_all);
2394 Opts.ModulesErrorRecovery = !Args.hasArg(OPT_fno_modules_error_recovery);
2395 Opts.ImplicitModules = !Args.hasArg(OPT_fno_implicit_modules);
2396 Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char);
2397 Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar);
2398 Opts.Char8 = Args.hasArg(OPT_fchar8__t);
2399 if (const Arg *A = Args.getLastArg(OPT_fwchar_type_EQ)) {
2400 Opts.WCharSize = llvm::StringSwitch<unsigned>(A->getValue())
2405 if (Opts.WCharSize == 0)
2406 Diags.Report(diag::err_fe_invalid_wchar_type) << A->getValue();
2408 Opts.WCharIsSigned = Args.hasFlag(OPT_fsigned_wchar, OPT_fno_signed_wchar, true);
2409 Opts.ShortEnums = Args.hasArg(OPT_fshort_enums);
2410 Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
2411 Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
2412 if (!Opts.NoBuiltin)
2413 getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs);
2414 Opts.NoMathBuiltin = Args.hasArg(OPT_fno_math_builtin);
2415 Opts.RelaxedTemplateTemplateArgs =
2416 Args.hasArg(OPT_frelaxed_template_template_args);
2417 Opts.SizedDeallocation = Args.hasArg(OPT_fsized_deallocation);
2418 Opts.AlignedAllocation =
2419 Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation,
2420 Opts.AlignedAllocation);
2421 Opts.AlignedAllocationUnavailable =
2422 Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable);
2423 Opts.NewAlignOverride =
2424 getLastArgIntValue(Args, OPT_fnew_alignment_EQ, 0, Diags);
2425 if (Opts.NewAlignOverride && !llvm::isPowerOf2_32(Opts.NewAlignOverride)) {
2426 Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ);
2427 Diags.Report(diag::err_fe_invalid_alignment) << A->getAsString(Args)
2429 Opts.NewAlignOverride = 0;
2431 Opts.ConceptsTS = Args.hasArg(OPT_fconcepts_ts);
2432 Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions);
2433 Opts.AccessControl = !Args.hasArg(OPT_fno_access_control);
2434 Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
2435 Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno);
2436 Opts.InstantiationDepth =
2437 getLastArgIntValue(Args, OPT_ftemplate_depth, 1024, Diags);
2439 getLastArgIntValue(Args, OPT_foperator_arrow_depth, 256, Diags);
2440 Opts.ConstexprCallDepth =
2441 getLastArgIntValue(Args, OPT_fconstexpr_depth, 512, Diags);
2442 Opts.ConstexprStepLimit =
2443 getLastArgIntValue(Args, OPT_fconstexpr_steps, 1048576, Diags);
2444 Opts.BracketDepth = getLastArgIntValue(Args, OPT_fbracket_depth, 256, Diags);
2445 Opts.DelayedTemplateParsing = Args.hasArg(OPT_fdelayed_template_parsing);
2446 Opts.NumLargeByValueCopy =
2447 getLastArgIntValue(Args, OPT_Wlarge_by_value_copy_EQ, 0, Diags);
2448 Opts.MSBitfields = Args.hasArg(OPT_mms_bitfields);
2449 Opts.ObjCConstantStringClass =
2450 Args.getLastArgValue(OPT_fconstant_string_class);
2451 Opts.ObjCDefaultSynthProperties =
2452 !Args.hasArg(OPT_disable_objc_default_synthesize_properties);
2453 Opts.EncodeExtendedBlockSig =
2454 Args.hasArg(OPT_fencode_extended_block_signature);
2455 Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls);
2456 Opts.PackStruct = getLastArgIntValue(Args, OPT_fpack_struct_EQ, 0, Diags);
2457 Opts.MaxTypeAlign = getLastArgIntValue(Args, OPT_fmax_type_align_EQ, 0, Diags);
2458 Opts.AlignDouble = Args.hasArg(OPT_malign_double);
2459 Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
2460 Opts.PIE = Args.hasArg(OPT_pic_is_pie);
2461 Opts.Static = Args.hasArg(OPT_static_define);
2462 Opts.DumpRecordLayoutsSimple = Args.hasArg(OPT_fdump_record_layouts_simple);
2463 Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple
2464 || Args.hasArg(OPT_fdump_record_layouts);
2465 Opts.DumpVTableLayouts = Args.hasArg(OPT_fdump_vtable_layouts);
2466 Opts.SpellChecking = !Args.hasArg(OPT_fno_spell_checking);
2467 Opts.NoBitFieldTypeAlign = Args.hasArg(OPT_fno_bitfield_type_align);
2468 Opts.SinglePrecisionConstants = Args.hasArg(OPT_cl_single_precision_constant);
2469 Opts.FastRelaxedMath = Args.hasArg(OPT_cl_fast_relaxed_math);
2470 Opts.HexagonQdsp6Compat = Args.hasArg(OPT_mqdsp6_compat);
2471 Opts.FakeAddressSpaceMap = Args.hasArg(OPT_ffake_address_space_map);
2472 Opts.ParseUnknownAnytype = Args.hasArg(OPT_funknown_anytype);
2473 Opts.DebuggerSupport = Args.hasArg(OPT_fdebugger_support);
2474 Opts.DebuggerCastResultToId = Args.hasArg(OPT_fdebugger_cast_result_to_id);
2475 Opts.DebuggerObjCLiteral = Args.hasArg(OPT_fdebugger_objc_literal);
2476 Opts.ApplePragmaPack = Args.hasArg(OPT_fapple_pragma_pack);
2477 Opts.ModuleName = Args.getLastArgValue(OPT_fmodule_name_EQ);
2478 Opts.CurrentModule = Opts.ModuleName;
2479 Opts.AppExt = Args.hasArg(OPT_fapplication_extension);
2480 Opts.ModuleFeatures = Args.getAllArgValues(OPT_fmodule_feature);
2481 llvm::sort(Opts.ModuleFeatures.begin(), Opts.ModuleFeatures.end());
2482 Opts.NativeHalfType |= Args.hasArg(OPT_fnative_half_type);
2483 Opts.NativeHalfArgsAndReturns |= Args.hasArg(OPT_fnative_half_arguments_and_returns);
2484 // Enable HalfArgsAndReturns if present in Args or if NativeHalfArgsAndReturns
2486 Opts.HalfArgsAndReturns = Args.hasArg(OPT_fallow_half_arguments_and_returns)
2487 | Opts.NativeHalfArgsAndReturns;
2488 Opts.GNUAsm = !Args.hasArg(OPT_fno_gnu_inline_asm);
2490 // __declspec is enabled by default for the PS4 by the driver, and also
2491 // enabled for Microsoft Extensions or Borland Extensions, here.
2493 // FIXME: __declspec is also currently enabled for CUDA, but isn't really a
2494 // CUDA extension. However, it is required for supporting
2495 // __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has
2496 // been rewritten in terms of something more generic, remove the Opts.CUDA
2498 Opts.DeclSpecKeyword =
2499 Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec,
2500 (Opts.MicrosoftExt || Opts.Borland || Opts.CUDA));
2502 if (Arg *A = Args.getLastArg(OPT_faddress_space_map_mangling_EQ)) {
2503 switch (llvm::StringSwitch<unsigned>(A->getValue())
2504 .Case("target", LangOptions::ASMM_Target)
2505 .Case("no", LangOptions::ASMM_Off)
2506 .Case("yes", LangOptions::ASMM_On)
2509 Diags.Report(diag::err_drv_invalid_value)
2510 << "-faddress-space-map-mangling=" << A->getValue();
2512 case LangOptions::ASMM_Target:
2513 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Target);
2515 case LangOptions::ASMM_On:
2516 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_On);
2518 case LangOptions::ASMM_Off:
2519 Opts.setAddressSpaceMapMangling(LangOptions::ASMM_Off);
2524 if (Arg *A = Args.getLastArg(OPT_fms_memptr_rep_EQ)) {
2525 LangOptions::PragmaMSPointersToMembersKind InheritanceModel =
2526 llvm::StringSwitch<LangOptions::PragmaMSPointersToMembersKind>(
2529 LangOptions::PPTMK_FullGeneralitySingleInheritance)
2531 LangOptions::PPTMK_FullGeneralityMultipleInheritance)
2533 LangOptions::PPTMK_FullGeneralityVirtualInheritance)
2534 .Default(LangOptions::PPTMK_BestCase);
2535 if (InheritanceModel == LangOptions::PPTMK_BestCase)
2536 Diags.Report(diag::err_drv_invalid_value)
2537 << "-fms-memptr-rep=" << A->getValue();
2539 Opts.setMSPointerToMemberRepresentationMethod(InheritanceModel);
2542 // Check for MS default calling conventions being specified.
2543 if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) {
2544 LangOptions::DefaultCallingConvention DefaultCC =
2545 llvm::StringSwitch<LangOptions::DefaultCallingConvention>(A->getValue())
2546 .Case("cdecl", LangOptions::DCC_CDecl)
2547 .Case("fastcall", LangOptions::DCC_FastCall)
2548 .Case("stdcall", LangOptions::DCC_StdCall)
2549 .Case("vectorcall", LangOptions::DCC_VectorCall)
2550 .Case("regcall", LangOptions::DCC_RegCall)
2551 .Default(LangOptions::DCC_None);
2552 if (DefaultCC == LangOptions::DCC_None)
2553 Diags.Report(diag::err_drv_invalid_value)
2554 << "-fdefault-calling-conv=" << A->getValue();
2556 llvm::Triple T(TargetOpts.Triple);
2557 llvm::Triple::ArchType Arch = T.getArch();
2558 bool emitError = (DefaultCC == LangOptions::DCC_FastCall ||
2559 DefaultCC == LangOptions::DCC_StdCall) &&
2560 Arch != llvm::Triple::x86;
2561 emitError |= (DefaultCC == LangOptions::DCC_VectorCall ||
2562 DefaultCC == LangOptions::DCC_RegCall) &&
2563 !(Arch == llvm::Triple::x86 || Arch == llvm::Triple::x86_64);
2565 Diags.Report(diag::err_drv_argument_not_allowed_with)
2566 << A->getSpelling() << T.getTriple();
2568 Opts.setDefaultCallingConv(DefaultCC);
2572 if (Arg *A = Args.getLastArg(OPT_mrtd)) {
2573 if (Opts.getDefaultCallingConv() != LangOptions::DCC_None)
2574 Diags.Report(diag::err_drv_argument_not_allowed_with)
2575 << A->getSpelling() << "-fdefault-calling-conv";
2577 llvm::Triple T(TargetOpts.Triple);
2578 if (T.getArch() != llvm::Triple::x86)
2579 Diags.Report(diag::err_drv_argument_not_allowed_with)
2580 << A->getSpelling() << T.getTriple();
2582 Opts.setDefaultCallingConv(LangOptions::DCC_StdCall);
2586 // Check if -fopenmp is specified.
2587 Opts.OpenMP = Args.hasArg(options::OPT_fopenmp) ? 1 : 0;
2588 // Check if -fopenmp-simd is specified.
2589 bool IsSimdSpecified =
2590 Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd,
2592 Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified;
2594 Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls);
2595 Opts.OpenMPIsDevice =
2596 Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device);
2597 bool IsTargetSpecified =
2598 Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ);
2600 if (Opts.OpenMP || Opts.OpenMPSimd) {
2601 if (int Version = getLastArgIntValue(
2602 Args, OPT_fopenmp_version_EQ,
2603 (IsSimdSpecified || IsTargetSpecified) ? 45 : Opts.OpenMP, Diags))
2604 Opts.OpenMP = Version;
2605 else if (IsSimdSpecified || IsTargetSpecified)
2607 // Provide diagnostic when a given target is not expected to be an OpenMP
2609 if (!Opts.OpenMPIsDevice) {
2610 switch (T.getArch()) {
2613 // Add unsupported host targets here:
2614 case llvm::Triple::nvptx:
2615 case llvm::Triple::nvptx64:
2616 Diags.Report(diag::err_drv_omp_host_target_not_supported)
2617 << TargetOpts.Triple;
2623 // Set the flag to prevent the implementation from emitting device exception
2624 // handling code for those requiring so.
2625 Opts.OpenMPHostCXXExceptions = Opts.Exceptions && Opts.CXXExceptions;
2626 if ((Opts.OpenMPIsDevice && T.isNVPTX()) || Opts.OpenCLCPlusPlus) {
2627 Opts.Exceptions = 0;
2628 Opts.CXXExceptions = 0;
2631 // Get the OpenMP target triples if any.
2632 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) {
2634 for (unsigned i = 0; i < A->getNumValues(); ++i) {
2635 llvm::Triple TT(A->getValue(i));
2637 if (TT.getArch() == llvm::Triple::UnknownArch ||
2638 !(TT.getArch() == llvm::Triple::ppc ||
2639 TT.getArch() == llvm::Triple::ppc64 ||
2640 TT.getArch() == llvm::Triple::ppc64le ||
2641 TT.getArch() == llvm::Triple::nvptx ||
2642 TT.getArch() == llvm::Triple::nvptx64 ||
2643 TT.getArch() == llvm::Triple::x86 ||
2644 TT.getArch() == llvm::Triple::x86_64))
2645 Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i);
2647 Opts.OMPTargetTriples.push_back(TT);
2651 // Get OpenMP host file path if any and report if a non existent file is
2653 if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) {
2654 Opts.OMPHostIRFile = A->getValue();
2655 if (!llvm::sys::fs::exists(Opts.OMPHostIRFile))
2656 Diags.Report(diag::err_drv_omp_host_ir_file_not_found)
2657 << Opts.OMPHostIRFile;
2660 // set CUDA mode for OpenMP target NVPTX if specified in options
2661 Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && T.isNVPTX() &&
2662 Args.hasArg(options::OPT_fopenmp_cuda_mode);
2664 // Record whether the __DEPRECATED define was requested.
2665 Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro,
2666 OPT_fno_deprecated_macro,
2669 // FIXME: Eliminate this dependency.
2670 unsigned Opt = getOptimizationLevel(Args, IK, Diags),
2671 OptSize = getOptimizationLevelSize(Args);
2672 Opts.Optimize = Opt != 0;
2673 Opts.OptimizeSize = OptSize != 0;
2675 // This is the __NO_INLINE__ define, which just depends on things like the
2676 // optimization level and -fno-inline, not actually whether the backend has
2677 // inlining enabled.
2678 Opts.NoInlineDefine = !Opts.Optimize;
2679 if (Arg *InlineArg = Args.getLastArg(
2680 options::OPT_finline_functions, options::OPT_finline_hint_functions,
2681 options::OPT_fno_inline_functions, options::OPT_fno_inline))
2682 if (InlineArg->getOption().matches(options::OPT_fno_inline))
2683 Opts.NoInlineDefine = true;
2685 Opts.FastMath = Args.hasArg(OPT_ffast_math) ||
2686 Args.hasArg(OPT_cl_fast_relaxed_math);
2687 Opts.FiniteMathOnly = Args.hasArg(OPT_ffinite_math_only) ||
2688 Args.hasArg(OPT_cl_finite_math_only) ||
2689 Args.hasArg(OPT_cl_fast_relaxed_math);
2690 Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
2691 Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
2692 Args.hasArg(OPT_cl_fast_relaxed_math);
2694 if (Arg *A = Args.getLastArg(OPT_ffp_contract)) {
2695 StringRef Val = A->getValue();
2697 Opts.setDefaultFPContractMode(LangOptions::FPC_Fast);
2698 else if (Val == "on")
2699 Opts.setDefaultFPContractMode(LangOptions::FPC_On);
2700 else if (Val == "off")
2701 Opts.setDefaultFPContractMode(LangOptions::FPC_Off);
2703 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
2706 Opts.RetainCommentsFromSystemHeaders =
2707 Args.hasArg(OPT_fretain_comments_from_system_headers);
2709 unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags);
2712 Diags.Report(diag::err_drv_invalid_value)
2713 << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP;
2715 case 0: Opts.setStackProtector(LangOptions::SSPOff); break;
2716 case 1: Opts.setStackProtector(LangOptions::SSPOn); break;
2717 case 2: Opts.setStackProtector(LangOptions::SSPStrong); break;
2718 case 3: Opts.setStackProtector(LangOptions::SSPReq); break;
2721 // Parse -fsanitize= arguments.
2722 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
2723 Diags, Opts.Sanitize);
2724 // -fsanitize-address-field-padding=N has to be a LangOpt, parse it here.
2725 Opts.SanitizeAddressFieldPadding =
2726 getLastArgIntValue(Args, OPT_fsanitize_address_field_padding, 0, Diags);
2727 Opts.SanitizerBlacklistFiles = Args.getAllArgValues(OPT_fsanitize_blacklist);
2729 // -fxray-instrument
2730 Opts.XRayInstrument =
2731 Args.hasFlag(OPT_fxray_instrument, OPT_fnoxray_instrument, false);
2733 // -fxray-always-emit-customevents
2734 Opts.XRayAlwaysEmitCustomEvents =
2735 Args.hasFlag(OPT_fxray_always_emit_customevents,
2736 OPT_fnoxray_always_emit_customevents, false);
2738 // -fxray-always-emit-typedevents
2739 Opts.XRayAlwaysEmitTypedEvents =
2740 Args.hasFlag(OPT_fxray_always_emit_typedevents,
2741 OPT_fnoxray_always_emit_customevents, false);
2743 // -fxray-{always,never}-instrument= filenames.
2744 Opts.XRayAlwaysInstrumentFiles =
2745 Args.getAllArgValues(OPT_fxray_always_instrument);
2746 Opts.XRayNeverInstrumentFiles =
2747 Args.getAllArgValues(OPT_fxray_never_instrument);
2748 Opts.XRayAttrListFiles = Args.getAllArgValues(OPT_fxray_attr_list);
2750 // -fforce-emit-vtables
2751 Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables);
2753 // -fallow-editor-placeholders
2754 Opts.AllowEditorPlaceholders = Args.hasArg(OPT_fallow_editor_placeholders);
2756 if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) {
2757 Opts.setClangABICompat(LangOptions::ClangABI::Latest);
2759 StringRef Ver = A->getValue();
2760 std::pair<StringRef, StringRef> VerParts = Ver.split('.');
2761 unsigned Major, Minor = 0;
2763 // Check the version number is valid: either 3.x (0 <= x <= 9) or
2764 // y or y.0 (4 <= y <= current version).
2765 if (!VerParts.first.startswith("0") &&
2766 !VerParts.first.getAsInteger(10, Major) &&
2767 3 <= Major && Major <= CLANG_VERSION_MAJOR &&
2768 (Major == 3 ? VerParts.second.size() == 1 &&
2769 !VerParts.second.getAsInteger(10, Minor)
2770 : VerParts.first.size() == Ver.size() ||
2771 VerParts.second == "0")) {
2772 // Got a valid version number.
2773 if (Major == 3 && Minor <= 8)
2774 Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8);
2775 else if (Major <= 4)
2776 Opts.setClangABICompat(LangOptions::ClangABI::Ver4);
2777 else if (Major <= 6)
2778 Opts.setClangABICompat(LangOptions::ClangABI::Ver6);
2779 } else if (Ver != "latest") {
2780 Diags.Report(diag::err_drv_invalid_value)
2781 << A->getAsString(Args) << A->getValue();
2785 Opts.CompleteMemberPointers = Args.hasArg(OPT_fcomplete_member_pointers);
2786 Opts.BuildingPCHWithObjectFile = Args.hasArg(OPT_building_pch_with_obj);
2789 static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) {
2791 case frontend::ASTDeclList:
2792 case frontend::ASTDump:
2793 case frontend::ASTPrint:
2794 case frontend::ASTView:
2795 case frontend::EmitAssembly:
2796 case frontend::EmitBC:
2797 case frontend::EmitHTML:
2798 case frontend::EmitLLVM:
2799 case frontend::EmitLLVMOnly:
2800 case frontend::EmitCodeGenOnly:
2801 case frontend::EmitObj:
2802 case frontend::FixIt:
2803 case frontend::GenerateModule:
2804 case frontend::GenerateModuleInterface:
2805 case frontend::GeneratePCH:
2806 case frontend::GeneratePTH:
2807 case frontend::ParseSyntaxOnly:
2808 case frontend::ModuleFileInfo:
2809 case frontend::VerifyPCH:
2810 case frontend::PluginAction:
2811 case frontend::PrintDeclContext:
2812 case frontend::RewriteObjC:
2813 case frontend::RewriteTest:
2814 case frontend::RunAnalysis:
2815 case frontend::TemplightDump:
2816 case frontend::MigrateSource:
2819 case frontend::DumpCompilerOptions:
2820 case frontend::DumpRawTokens:
2821 case frontend::DumpTokens:
2822 case frontend::InitOnly:
2823 case frontend::PrintPreamble:
2824 case frontend::PrintPreprocessedInput:
2825 case frontend::RewriteMacros:
2826 case frontend::RunPreprocessorOnly:
2829 llvm_unreachable("invalid frontend action");
2832 static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
2833 DiagnosticsEngine &Diags,
2834 frontend::ActionKind Action) {
2835 Opts.ImplicitPCHInclude = Args.getLastArgValue(OPT_include_pch);
2836 Opts.ImplicitPTHInclude = Args.getLastArgValue(OPT_include_pth);
2837 Opts.PCHThroughHeader = Args.getLastArgValue(OPT_pch_through_header_EQ);
2838 if (const Arg *A = Args.getLastArg(OPT_token_cache))
2839 Opts.TokenCache = A->getValue();
2841 Opts.TokenCache = Opts.ImplicitPTHInclude;
2842 Opts.UsePredefines = !Args.hasArg(OPT_undef);
2843 Opts.DetailedRecord = Args.hasArg(OPT_detailed_preprocessing_record);
2844 Opts.DisablePCHValidation = Args.hasArg(OPT_fno_validate_pch);
2845 Opts.AllowPCHWithCompilerErrors = Args.hasArg(OPT_fallow_pch_with_errors);
2847 Opts.DumpDeserializedPCHDecls = Args.hasArg(OPT_dump_deserialized_pch_decls);
2848 for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl))
2849 Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue());
2851 if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) {
2852 StringRef Value(A->getValue());
2853 size_t Comma = Value.find(',');
2855 unsigned EndOfLine = 0;
2857 if (Comma == StringRef::npos ||
2858 Value.substr(0, Comma).getAsInteger(10, Bytes) ||
2859 Value.substr(Comma + 1).getAsInteger(10, EndOfLine))
2860 Diags.Report(diag::err_drv_preamble_format);
2862 Opts.PrecompiledPreambleBytes.first = Bytes;
2863 Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0);
2867 // Add the __CET__ macro if a CFProtection option is set.
2868 if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) {
2869 StringRef Name = A->getValue();
2870 if (Name == "branch")
2871 Opts.addMacroDef("__CET__=1");
2872 else if (Name == "return")
2873 Opts.addMacroDef("__CET__=2");
2874 else if (Name == "full")
2875 Opts.addMacroDef("__CET__=3");
2878 // Add macros from the command line.
2879 for (const auto *A : Args.filtered(OPT_D, OPT_U)) {
2880 if (A->getOption().matches(OPT_D))
2881 Opts.addMacroDef(A->getValue());
2883 Opts.addMacroUndef(A->getValue());
2886 Opts.MacroIncludes = Args.getAllArgValues(OPT_imacros);
2888 // Add the ordered list of -includes.
2889 for (const auto *A : Args.filtered(OPT_include))
2890 Opts.Includes.emplace_back(A->getValue());
2892 for (const auto *A : Args.filtered(OPT_chain_include))
2893 Opts.ChainedIncludes.emplace_back(A->getValue());
2895 for (const auto *A : Args.filtered(OPT_remap_file)) {
2896 std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';');
2898 if (Split.second.empty()) {
2899 Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args);
2903 Opts.addRemappedFile(Split.first, Split.second);
2906 if (Arg *A = Args.getLastArg(OPT_fobjc_arc_cxxlib_EQ)) {
2907 StringRef Name = A->getValue();
2908 unsigned Library = llvm::StringSwitch<unsigned>(Name)
2909 .Case("libc++", ARCXX_libcxx)
2910 .Case("libstdc++", ARCXX_libstdcxx)
2911 .Case("none", ARCXX_nolib)
2914 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
2916 Opts.ObjCXXARCStandardLibrary = (ObjCXXARCStandardLibraryKind)Library;
2919 // Always avoid lexing editor placeholders when we're just running the
2920 // preprocessor as we never want to emit the
2921 // "editor placeholder in source file" error in PP only mode.
2922 if (isStrictlyPreprocessorAction(Action))
2923 Opts.LexEditorPlaceholders = false;
2926 static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
2928 frontend::ActionKind Action) {
2929 if (isStrictlyPreprocessorAction(Action))
2930 Opts.ShowCPP = !Args.hasArg(OPT_dM);
2934 Opts.ShowComments = Args.hasArg(OPT_C);
2935 Opts.ShowLineMarkers = !Args.hasArg(OPT_P);
2936 Opts.ShowMacroComments = Args.hasArg(OPT_CC);
2937 Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD);
2938 Opts.ShowIncludeDirectives = Args.hasArg(OPT_dI);
2939 Opts.RewriteIncludes = Args.hasArg(OPT_frewrite_includes);
2940 Opts.RewriteImports = Args.hasArg(OPT_frewrite_imports);
2941 Opts.UseLineDirectives = Args.hasArg(OPT_fuse_line_directives);
2944 static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args,
2945 DiagnosticsEngine &Diags) {
2946 Opts.ABI = Args.getLastArgValue(OPT_target_abi);
2947 if (Arg *A = Args.getLastArg(OPT_meabi)) {
2948 StringRef Value = A->getValue();
2949 llvm::EABI EABIVersion = llvm::StringSwitch<llvm::EABI>(Value)
2950 .Case("default", llvm::EABI::Default)
2951 .Case("4", llvm::EABI::EABI4)
2952 .Case("5", llvm::EABI::EABI5)
2953 .Case("gnu", llvm::EABI::GNU)
2954 .Default(llvm::EABI::Unknown);
2955 if (EABIVersion == llvm::EABI::Unknown)
2956 Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
2959 Opts.EABIVersion = EABIVersion;
2961 Opts.CPU = Args.getLastArgValue(OPT_target_cpu);
2962 Opts.FPMath = Args.getLastArgValue(OPT_mfpmath);
2963 Opts.FeaturesAsWritten = Args.getAllArgValues(OPT_target_feature);
2964 Opts.LinkerVersion = Args.getLastArgValue(OPT_target_linker_version);
2965 Opts.Triple = Args.getLastArgValue(OPT_triple);
2966 // Use the default target triple if unspecified.
2967 if (Opts.Triple.empty())
2968 Opts.Triple = llvm::sys::getDefaultTargetTriple();
2969 Opts.Triple = llvm::Triple::normalize(Opts.Triple);
2970 Opts.OpenCLExtensionsAsWritten = Args.getAllArgValues(OPT_cl_ext_EQ);
2971 Opts.ForceEnableInt128 = Args.hasArg(OPT_fforce_enable_int128);
2972 Opts.NVPTXUseShortPointers = Args.hasFlag(
2973 options::OPT_fcuda_short_ptr, options::OPT_fno_cuda_short_ptr, false);
2976 bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
2977 const char *const *ArgBegin,
2978 const char *const *ArgEnd,
2979 DiagnosticsEngine &Diags) {
2980 bool Success = true;
2982 // Parse the arguments.
2983 std::unique_ptr<OptTable> Opts = createDriverOptTable();
2984 const unsigned IncludedFlagsBitmask = options::CC1Option;
2985 unsigned MissingArgIndex, MissingArgCount;
2987 Opts->ParseArgs(llvm::makeArrayRef(ArgBegin, ArgEnd), MissingArgIndex,
2988 MissingArgCount, IncludedFlagsBitmask);
2989 LangOptions &LangOpts = *Res.getLangOpts();
2991 // Check for missing argument error.
2992 if (MissingArgCount) {
2993 Diags.Report(diag::err_drv_missing_argument)
2994 << Args.getArgString(MissingArgIndex) << MissingArgCount;
2998 // Issue errors on unknown arguments.
2999 for (const auto *A : Args.filtered(OPT_UNKNOWN)) {
3000 auto ArgString = A->getAsString(Args);
3001 std::string Nearest;
3002 if (Opts->findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1)
3003 Diags.Report(diag::err_drv_unknown_argument) << ArgString;
3005 Diags.Report(diag::err_drv_unknown_argument_with_suggestion)
3006 << ArgString << Nearest;
3010 Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags);
3011 Success &= ParseMigratorArgs(Res.getMigratorOpts(), Args);
3012 ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args);
3014 ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags,
3015 false /*DefaultDiagColor*/, false /*DefaultShowOpt*/);
3016 ParseCommentArgs(LangOpts.CommentOpts, Args);
3017 ParseFileSystemArgs(Res.getFileSystemOpts(), Args);
3018 // FIXME: We shouldn't have to pass the DashX option around here
3019 InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags,
3020 LangOpts.IsHeaderFile);
3021 ParseTargetArgs(Res.getTargetOpts(), Args, Diags);
3022 Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags,
3023 Res.getTargetOpts(), Res.getFrontendOpts());
3024 ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args,
3025 Res.getFileSystemOpts().WorkingDir);
3026 if (DashX.getFormat() == InputKind::Precompiled ||
3027 DashX.getLanguage() == InputKind::LLVM_IR) {
3028 // ObjCAAutoRefCount and Sanitize LangOpts are used to setup the
3029 // PassManager in BackendUtil.cpp. They need to be initializd no matter
3030 // what the input type is.
3031 if (Args.hasArg(OPT_fobjc_arc))
3032 LangOpts.ObjCAutoRefCount = 1;
3033 // PIClevel and PIELevel are needed during code generation and this should be
3034 // set regardless of the input type.
3035 LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
3036 LangOpts.PIE = Args.hasArg(OPT_pic_is_pie);
3037 parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
3038 Diags, LangOpts.Sanitize);
3040 // Other LangOpts are only initialzed when the input is not AST or LLVM IR.
3041 // FIXME: Should we really be calling this for an InputKind::Asm input?
3042 ParseLangArgs(LangOpts, Args, DashX, Res.getTargetOpts(),
3043 Res.getPreprocessorOpts(), Diags);
3044 if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
3045 LangOpts.ObjCExceptions = 1;
3048 LangOpts.FunctionAlignment =
3049 getLastArgIntValue(Args, OPT_function_alignment, 0, Diags);
3051 if (LangOpts.CUDA) {
3052 // During CUDA device-side compilation, the aux triple is the
3053 // triple used for host compilation.
3054 if (LangOpts.CUDAIsDevice)
3055 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
3058 // Set the triple of the host for OpenMP device compile.
3059 if (LangOpts.OpenMPIsDevice)
3060 Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
3062 // FIXME: Override value name discarding when asan or msan is used because the
3063 // backend passes depend on the name of the alloca in order to print out
3065 Res.getCodeGenOpts().DiscardValueNames &=
3066 !LangOpts.Sanitize.has(SanitizerKind::Address) &&
3067 !LangOpts.Sanitize.has(SanitizerKind::Memory);
3069 ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags,
3070 Res.getFrontendOpts().ProgramAction);
3071 ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args,
3072 Res.getFrontendOpts().ProgramAction);
3074 // Turn on -Wspir-compat for SPIR target.
3075 llvm::Triple T(Res.getTargetOpts().Triple);
3076 auto Arch = T.getArch();
3077 if (Arch == llvm::Triple::spir || Arch == llvm::Triple::spir64) {
3078 Res.getDiagnosticOpts().Warnings.push_back("spir-compat");
3081 // If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses.
3082 if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses &&
3083 !Res.getLangOpts()->Sanitize.empty()) {
3084 Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false;
3085 Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored);
3090 std::string CompilerInvocation::getModuleHash() const {
3091 // Note: For QoI reasons, the things we use as a hash here should all be
3092 // dumped via the -module-info flag.
3093 using llvm::hash_code;
3094 using llvm::hash_value;
3095 using llvm::hash_combine;
3097 // Start the signature with the compiler version.
3098 // FIXME: We'd rather use something more cryptographically sound than
3099 // CityHash, but this will do for now.
3100 hash_code code = hash_value(getClangFullRepositoryVersion());
3102 // Extend the signature with the language options
3103 #define LANGOPT(Name, Bits, Default, Description) \
3104 code = hash_combine(code, LangOpts->Name);
3105 #define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
3106 code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name()));
3107 #define BENIGN_LANGOPT(Name, Bits, Default, Description)
3108 #define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
3109 #include "clang/Basic/LangOptions.def"
3111 for (StringRef Feature : LangOpts->ModuleFeatures)
3112 code = hash_combine(code, Feature);
3114 // Extend the signature with the target options.
3115 code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU,
3117 for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten)
3118 code = hash_combine(code, FeatureAsWritten);
3120 // Extend the signature with preprocessor options.
3121 const PreprocessorOptions &ppOpts = getPreprocessorOpts();
3122 const HeaderSearchOptions &hsOpts = getHeaderSearchOpts();
3123 code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord);
3125 for (const auto &I : getPreprocessorOpts().Macros) {
3126 // If we're supposed to ignore this macro for the purposes of modules,
3127 // don't put it into the hash.
3128 if (!hsOpts.ModulesIgnoreMacros.empty()) {
3129 // Check whether we're ignoring this macro.
3130 StringRef MacroDef = I.first;
3131 if (hsOpts.ModulesIgnoreMacros.count(
3132 llvm::CachedHashString(MacroDef.split('=').first)))
3136 code = hash_combine(code, I.first, I.second);
3139 // Extend the signature with the sysroot and other header search options.
3140 code = hash_combine(code, hsOpts.Sysroot,
3141 hsOpts.ModuleFormat,
3142 hsOpts.UseDebugInfo,
3143 hsOpts.UseBuiltinIncludes,
3144 hsOpts.UseStandardSystemIncludes,
3145 hsOpts.UseStandardCXXIncludes,
3147 hsOpts.ModulesValidateDiagnosticOptions);
3148 code = hash_combine(code, hsOpts.ResourceDir);
3150 // Extend the signature with the user build path.
3151 code = hash_combine(code, hsOpts.ModuleUserBuildPath);
3153 // Extend the signature with the module file extensions.
3154 const FrontendOptions &frontendOpts = getFrontendOpts();
3155 for (const auto &ext : frontendOpts.ModuleFileExtensions) {
3156 code = ext->hashExtension(code);
3159 // Extend the signature with the enabled sanitizers, if at least one is
3160 // enabled. Sanitizers which cannot affect AST generation aren't hashed.
3161 SanitizerSet SanHash = LangOpts->Sanitize;
3162 SanHash.clear(getPPTransparentSanitizers());
3163 if (!SanHash.empty())
3164 code = hash_combine(code, SanHash.Mask);
3166 return llvm::APInt(64, code).toString(36, /*Signed=*/false);
3169 template<typename IntTy>
3170 static IntTy getLastArgIntValueImpl(const ArgList &Args, OptSpecifier Id,
3172 DiagnosticsEngine *Diags) {
3173 IntTy Res = Default;
3174 if (Arg *A = Args.getLastArg(Id)) {
3175 if (StringRef(A->getValue()).getAsInteger(10, Res)) {
3177 Diags->Report(diag::err_drv_invalid_int_value) << A->getAsString(Args)
3186 // Declared in clang/Frontend/Utils.h.
3187 int getLastArgIntValue(const ArgList &Args, OptSpecifier Id, int Default,
3188 DiagnosticsEngine *Diags) {
3189 return getLastArgIntValueImpl<int>(Args, Id, Default, Diags);
3192 uint64_t getLastArgUInt64Value(const ArgList &Args, OptSpecifier Id,
3194 DiagnosticsEngine *Diags) {
3195 return getLastArgIntValueImpl<uint64_t>(Args, Id, Default, Diags);
3198 void BuryPointer(const void *Ptr) {
3199 // This function may be called only a small fixed amount of times per each
3200 // invocation, otherwise we do actually have a leak which we want to report.
3201 // If this function is called more than kGraveYardMaxSize times, the pointers
3202 // will not be properly buried and a leak detector will report a leak, which
3203 // is what we want in such case.
3204 static const size_t kGraveYardMaxSize = 16;
3205 LLVM_ATTRIBUTE_UNUSED static const void *GraveYard[kGraveYardMaxSize];
3206 static std::atomic<unsigned> GraveYardSize;
3207 unsigned Idx = GraveYardSize++;
3208 if (Idx >= kGraveYardMaxSize)
3210 GraveYard[Idx] = Ptr;
3213 IntrusiveRefCntPtr<vfs::FileSystem>
3214 createVFSFromCompilerInvocation(const CompilerInvocation &CI,
3215 DiagnosticsEngine &Diags) {
3216 return createVFSFromCompilerInvocation(CI, Diags, vfs::getRealFileSystem());
3219 IntrusiveRefCntPtr<vfs::FileSystem>
3220 createVFSFromCompilerInvocation(const CompilerInvocation &CI,
3221 DiagnosticsEngine &Diags,
3222 IntrusiveRefCntPtr<vfs::FileSystem> BaseFS) {
3223 if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty())
3226 IntrusiveRefCntPtr<vfs::OverlayFileSystem> Overlay(
3227 new vfs::OverlayFileSystem(BaseFS));
3228 // earlier vfs files are on the bottom
3229 for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) {
3230 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer =
3231 BaseFS->getBufferForFile(File);
3233 Diags.Report(diag::err_missing_vfs_overlay_file) << File;
3237 IntrusiveRefCntPtr<vfs::FileSystem> FS = vfs::getVFSFromYAML(
3238 std::move(Buffer.get()), /*DiagHandler*/ nullptr, File);
3240 Overlay->pushOverlay(FS);
3242 Diags.Report(diag::err_invalid_vfs_overlay) << File;
3247 } // namespace clang