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llvm / clang / 5d899f7d95c13ea08fae3aba3280a902f2834e23 / . / lib / Frontend / CompilerInvocation.cpp
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//===- CompilerInvocation.cpp ---------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "clang/Frontend/CompilerInvocation.h"
#include "TestModuleFileExtension.h"
#include "clang/Basic/Builtins.h"
#include "clang/Basic/CharInfo.h"
#include "clang/Basic/CodeGenOptions.h"
#include "clang/Basic/CommentOptions.h"
#include "clang/Basic/DebugInfoOptions.h"
#include "clang/Basic/Diagnostic.h"
#include "clang/Basic/DiagnosticOptions.h"
#include "clang/Basic/FileSystemOptions.h"
#include "clang/Basic/LLVM.h"
#include "clang/Basic/LangOptions.h"
#include "clang/Basic/LangStandard.h"
#include "clang/Basic/ObjCRuntime.h"
#include "clang/Basic/Sanitizers.h"
#include "clang/Basic/SourceLocation.h"
#include "clang/Basic/TargetOptions.h"
#include "clang/Basic/Version.h"
#include "clang/Basic/Visibility.h"
#include "clang/Basic/XRayInstr.h"
#include "clang/Config/config.h"
#include "clang/Driver/Driver.h"
#include "clang/Driver/DriverDiagnostic.h"
#include "clang/Driver/Options.h"
#include "clang/Frontend/CommandLineSourceLoc.h"
#include "clang/Frontend/DependencyOutputOptions.h"
#include "clang/Frontend/FrontendDiagnostic.h"
#include "clang/Frontend/FrontendOptions.h"
#include "clang/Frontend/FrontendPluginRegistry.h"
#include "clang/Frontend/MigratorOptions.h"
#include "clang/Frontend/PreprocessorOutputOptions.h"
#include "clang/Frontend/Utils.h"
#include "clang/Lex/HeaderSearchOptions.h"
#include "clang/Lex/PreprocessorOptions.h"
#include "clang/Sema/CodeCompleteOptions.h"
#include "clang/Serialization/ModuleFileExtension.h"
#include "clang/StaticAnalyzer/Core/AnalyzerOptions.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/CachedHashString.h"
#include "llvm/ADT/Hashing.h"
#include "llvm/ADT/None.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/StringSwitch.h"
#include "llvm/ADT/Triple.h"
#include "llvm/ADT/Twine.h"
#include "llvm/IR/DebugInfoMetadata.h"
#include "llvm/Linker/Linker.h"
#include "llvm/MC/MCTargetOptions.h"
#include "llvm/Option/Arg.h"
#include "llvm/Option/ArgList.h"
#include "llvm/Option/OptSpecifier.h"
#include "llvm/Option/OptTable.h"
#include "llvm/Option/Option.h"
#include "llvm/ProfileData/InstrProfReader.h"
#include "llvm/Support/CodeGen.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Error.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/ErrorOr.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Host.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/Process.h"
#include "llvm/Support/Regex.h"
#include "llvm/Support/VersionTuple.h"
#include "llvm/Support/VirtualFileSystem.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Target/TargetOptions.h"
#include <algorithm>
#include <atomic>
#include <cassert>
#include <cstddef>
#include <cstring>
#include <memory>
#include <string>
#include <tuple>
#include <utility>
#include <vector>
using namespace clang;
using namespace driver;
using namespace options;
using namespace llvm::opt;
//===----------------------------------------------------------------------===//
// Initialization.
//===----------------------------------------------------------------------===//
CompilerInvocationBase::CompilerInvocationBase()
: LangOpts(new LangOptions()), TargetOpts(new TargetOptions()),
DiagnosticOpts(new DiagnosticOptions()),
HeaderSearchOpts(new HeaderSearchOptions()),
PreprocessorOpts(new PreprocessorOptions()) {}
CompilerInvocationBase::CompilerInvocationBase(const CompilerInvocationBase &X)
: LangOpts(new LangOptions(*X.getLangOpts())),
TargetOpts(new TargetOptions(X.getTargetOpts())),
DiagnosticOpts(new DiagnosticOptions(X.getDiagnosticOpts())),
HeaderSearchOpts(new HeaderSearchOptions(X.getHeaderSearchOpts())),
PreprocessorOpts(new PreprocessorOptions(X.getPreprocessorOpts())) {}
CompilerInvocationBase::~CompilerInvocationBase() = default;
//===----------------------------------------------------------------------===//
// Deserialization (from args)
//===----------------------------------------------------------------------===//
static unsigned getOptimizationLevel(ArgList &Args, InputKind IK,
DiagnosticsEngine &Diags) {
unsigned DefaultOpt = llvm::CodeGenOpt::None;
if (IK.getLanguage() == Language::OpenCL && !Args.hasArg(OPT_cl_opt_disable))
DefaultOpt = llvm::CodeGenOpt::Default;
if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
if (A->getOption().matches(options::OPT_O0))
return llvm::CodeGenOpt::None;
if (A->getOption().matches(options::OPT_Ofast))
return llvm::CodeGenOpt::Aggressive;
assert(A->getOption().matches(options::OPT_O));
StringRef S(A->getValue());
if (S == "s" || S == "z" || S.empty())
return llvm::CodeGenOpt::Default;
if (S == "g")
return llvm::CodeGenOpt::Less;
return getLastArgIntValue(Args, OPT_O, DefaultOpt, Diags);
}
return DefaultOpt;
}
static unsigned getOptimizationLevelSize(ArgList &Args) {
if (Arg *A = Args.getLastArg(options::OPT_O_Group)) {
if (A->getOption().matches(options::OPT_O)) {
switch (A->getValue()[0]) {
default:
return 0;
case 's':
return 1;
case 'z':
return 2;
}
}
}
return 0;
}
static void addDiagnosticArgs(ArgList &Args, OptSpecifier Group,
OptSpecifier GroupWithValue,
std::vector<std::string> &Diagnostics) {
for (auto *A : Args.filtered(Group)) {
if (A->getOption().getKind() == Option::FlagClass) {
// The argument is a pure flag (such as OPT_Wall or OPT_Wdeprecated). Add
// its name (minus the "W" or "R" at the beginning) to the warning list.
Diagnostics.push_back(A->getOption().getName().drop_front(1));
} else if (A->getOption().matches(GroupWithValue)) {
// This is -Wfoo= or -Rfoo=, where foo is the name of the diagnostic group.
Diagnostics.push_back(A->getOption().getName().drop_front(1).rtrim("=-"));
} else {
// Otherwise, add its value (for OPT_W_Joined and similar).
for (const auto *Arg : A->getValues())
Diagnostics.emplace_back(Arg);
}
}
}
// Parse the Static Analyzer configuration. If \p Diags is set to nullptr,
// it won't verify the input.
static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts,
DiagnosticsEngine *Diags);
static void getAllNoBuiltinFuncValues(ArgList &Args,
std::vector<std::string> &Funcs) {
SmallVector<const char *, 8> Values;
for (const auto &Arg : Args) {
const Option &O = Arg->getOption();
if (O.matches(options::OPT_fno_builtin_)) {
const char *FuncName = Arg->getValue();
if (Builtin::Context::isBuiltinFunc(FuncName))
Values.push_back(FuncName);
}
}
Funcs.insert(Funcs.end(), Values.begin(), Values.end());
}
static bool ParseAnalyzerArgs(AnalyzerOptions &Opts, ArgList &Args,
DiagnosticsEngine &Diags) {
bool Success = true;
if (Arg *A = Args.getLastArg(OPT_analyzer_store)) {
StringRef Name = A->getValue();
AnalysisStores Value = llvm::StringSwitch<AnalysisStores>(Name)
#define ANALYSIS_STORE(NAME, CMDFLAG, DESC, CREATFN) \
.Case(CMDFLAG, NAME##Model)
#include "clang/StaticAnalyzer/Core/Analyses.def"
.Default(NumStores);
if (Value == NumStores) {
Diags.Report(diag::err_drv_invalid_value)
<< A->getAsString(Args) << Name;
Success = false;
} else {
Opts.AnalysisStoreOpt = Value;
}
}
if (Arg *A = Args.getLastArg(OPT_analyzer_constraints)) {
StringRef Name = A->getValue();
AnalysisConstraints Value = llvm::StringSwitch<AnalysisConstraints>(Name)
#define ANALYSIS_CONSTRAINTS(NAME, CMDFLAG, DESC, CREATFN) \
.Case(CMDFLAG, NAME##Model)
#include "clang/StaticAnalyzer/Core/Analyses.def"
.Default(NumConstraints);
if (Value == NumConstraints) {
Diags.Report(diag::err_drv_invalid_value)
<< A->getAsString(Args) << Name;
Success = false;
} else {
Opts.AnalysisConstraintsOpt = Value;
}
}
if (Arg *A = Args.getLastArg(OPT_analyzer_output)) {
StringRef Name = A->getValue();
AnalysisDiagClients Value = llvm::StringSwitch<AnalysisDiagClients>(Name)
#define ANALYSIS_DIAGNOSTICS(NAME, CMDFLAG, DESC, CREATFN) \
.Case(CMDFLAG, PD_##NAME)
#include "clang/StaticAnalyzer/Core/Analyses.def"
.Default(NUM_ANALYSIS_DIAG_CLIENTS);
if (Value == NUM_ANALYSIS_DIAG_CLIENTS) {
Diags.Report(diag::err_drv_invalid_value)
<< A->getAsString(Args) << Name;
Success = false;
} else {
Opts.AnalysisDiagOpt = Value;
}
}
if (Arg *A = Args.getLastArg(OPT_analyzer_purge)) {
StringRef Name = A->getValue();
AnalysisPurgeMode Value = llvm::StringSwitch<AnalysisPurgeMode>(Name)
#define ANALYSIS_PURGE(NAME, CMDFLAG, DESC) \
.Case(CMDFLAG, NAME)
#include "clang/StaticAnalyzer/Core/Analyses.def"
.Default(NumPurgeModes);
if (Value == NumPurgeModes) {
Diags.Report(diag::err_drv_invalid_value)
<< A->getAsString(Args) << Name;
Success = false;
} else {
Opts.AnalysisPurgeOpt = Value;
}
}
if (Arg *A = Args.getLastArg(OPT_analyzer_inlining_mode)) {
StringRef Name = A->getValue();
AnalysisInliningMode Value = llvm::StringSwitch<AnalysisInliningMode>(Name)
#define ANALYSIS_INLINING_MODE(NAME, CMDFLAG, DESC) \
.Case(CMDFLAG, NAME)
#include "clang/StaticAnalyzer/Core/Analyses.def"
.Default(NumInliningModes);
if (Value == NumInliningModes) {
Diags.Report(diag::err_drv_invalid_value)
<< A->getAsString(Args) << Name;
Success = false;
} else {
Opts.InliningMode = Value;
}
}
Opts.ShowCheckerHelp = Args.hasArg(OPT_analyzer_checker_help);
Opts.ShowCheckerHelpAlpha = Args.hasArg(OPT_analyzer_checker_help_alpha);
Opts.ShowCheckerHelpDeveloper =
Args.hasArg(OPT_analyzer_checker_help_developer);
Opts.ShowCheckerOptionList = Args.hasArg(OPT_analyzer_checker_option_help);
Opts.ShowCheckerOptionAlphaList =
Args.hasArg(OPT_analyzer_checker_option_help_alpha);
Opts.ShowCheckerOptionDeveloperList =
Args.hasArg(OPT_analyzer_checker_option_help_developer);
Opts.ShowConfigOptionsList = Args.hasArg(OPT_analyzer_config_help);
Opts.ShowEnabledCheckerList = Args.hasArg(OPT_analyzer_list_enabled_checkers);
Opts.ShouldEmitErrorsOnInvalidConfigValue =
/* negated */!llvm::StringSwitch<bool>(
Args.getLastArgValue(OPT_analyzer_config_compatibility_mode))
.Case("true", true)
.Case("false", false)
.Default(false);
Opts.DisableAllCheckers = Args.hasArg(OPT_analyzer_disable_all_checks);
Opts.visualizeExplodedGraphWithGraphViz =
Args.hasArg(OPT_analyzer_viz_egraph_graphviz);
Opts.DumpExplodedGraphTo = Args.getLastArgValue(OPT_analyzer_dump_egraph);
Opts.NoRetryExhausted = Args.hasArg(OPT_analyzer_disable_retry_exhausted);
Opts.AnalyzerWerror = Args.hasArg(OPT_analyzer_werror);
Opts.AnalyzeAll = Args.hasArg(OPT_analyzer_opt_analyze_headers);
Opts.AnalyzerDisplayProgress = Args.hasArg(OPT_analyzer_display_progress);
Opts.AnalyzeNestedBlocks =
Args.hasArg(OPT_analyzer_opt_analyze_nested_blocks);
Opts.AnalyzeSpecificFunction = Args.getLastArgValue(OPT_analyze_function);
Opts.UnoptimizedCFG = Args.hasArg(OPT_analysis_UnoptimizedCFG);
Opts.TrimGraph = Args.hasArg(OPT_trim_egraph);
Opts.maxBlockVisitOnPath =
getLastArgIntValue(Args, OPT_analyzer_max_loop, 4, Diags);
Opts.PrintStats = Args.hasArg(OPT_analyzer_stats);
Opts.InlineMaxStackDepth =
getLastArgIntValue(Args, OPT_analyzer_inline_max_stack_depth,
Opts.InlineMaxStackDepth, Diags);
Opts.CheckersAndPackages.clear();
for (const Arg *A :
Args.filtered(OPT_analyzer_checker, OPT_analyzer_disable_checker)) {
A->claim();
bool IsEnabled = A->getOption().getID() == OPT_analyzer_checker;
// We can have a list of comma separated checker names, e.g:
// '-analyzer-checker=cocoa,unix'
StringRef CheckerAndPackageList = A->getValue();
SmallVector<StringRef, 16> CheckersAndPackages;
CheckerAndPackageList.split(CheckersAndPackages, ",");
for (const StringRef CheckerOrPackage : CheckersAndPackages)
Opts.CheckersAndPackages.emplace_back(CheckerOrPackage, IsEnabled);
}
// Go through the analyzer configuration options.
for (const auto *A : Args.filtered(OPT_analyzer_config)) {
// We can have a list of comma separated config names, e.g:
// '-analyzer-config key1=val1,key2=val2'
StringRef configList = A->getValue();
SmallVector<StringRef, 4> configVals;
configList.split(configVals, ",");
for (const auto &configVal : configVals) {
StringRef key, val;
std::tie(key, val) = configVal.split("=");
if (val.empty()) {
Diags.Report(SourceLocation(),
diag::err_analyzer_config_no_value) << configVal;
Success = false;
break;
}
if (val.find('=') != StringRef::npos) {
Diags.Report(SourceLocation(),
diag::err_analyzer_config_multiple_values)
<< configVal;
Success = false;
break;
}
// TODO: Check checker options too, possibly in CheckerRegistry.
// Leave unknown non-checker configs unclaimed.
if (!key.contains(":") && Opts.isUnknownAnalyzerConfig(key)) {
if (Opts.ShouldEmitErrorsOnInvalidConfigValue)
Diags.Report(diag::err_analyzer_config_unknown) << key;
continue;
}
A->claim();
Opts.Config[key] = val;
}
}
if (Opts.ShouldEmitErrorsOnInvalidConfigValue)
parseAnalyzerConfigs(Opts, &Diags);
else
parseAnalyzerConfigs(Opts, nullptr);
llvm::raw_string_ostream os(Opts.FullCompilerInvocation);
for (unsigned i = 0; i < Args.getNumInputArgStrings(); ++i) {
if (i != 0)
os << " ";
os << Args.getArgString(i);
}
os.flush();
return Success;
}
static StringRef getStringOption(AnalyzerOptions::ConfigTable &Config,
StringRef OptionName, StringRef DefaultVal) {
return Config.insert({OptionName, DefaultVal}).first->second;
}
static void initOption(AnalyzerOptions::ConfigTable &Config,
DiagnosticsEngine *Diags,
StringRef &OptionField, StringRef Name,
StringRef DefaultVal) {
// String options may be known to invalid (e.g. if the expected string is a
// file name, but the file does not exist), those will have to be checked in
// parseConfigs.
OptionField = getStringOption(Config, Name, DefaultVal);
}
static void initOption(AnalyzerOptions::ConfigTable &Config,
DiagnosticsEngine *Diags,
bool &OptionField, StringRef Name, bool DefaultVal) {
auto PossiblyInvalidVal = llvm::StringSwitch<Optional<bool>>(
getStringOption(Config, Name, (DefaultVal ? "true" : "false")))
.Case("true", true)
.Case("false", false)
.Default(None);
if (!PossiblyInvalidVal) {
if (Diags)
Diags->Report(diag::err_analyzer_config_invalid_input)
<< Name << "a boolean";
else
OptionField = DefaultVal;
} else
OptionField = PossiblyInvalidVal.getValue();
}
static void initOption(AnalyzerOptions::ConfigTable &Config,
DiagnosticsEngine *Diags,
unsigned &OptionField, StringRef Name,
unsigned DefaultVal) {
OptionField = DefaultVal;
bool HasFailed = getStringOption(Config, Name, std::to_string(DefaultVal))
.getAsInteger(0, OptionField);
if (Diags && HasFailed)
Diags->Report(diag::err_analyzer_config_invalid_input)
<< Name << "an unsigned";
}
static void parseAnalyzerConfigs(AnalyzerOptions &AnOpts,
DiagnosticsEngine *Diags) {
// TODO: There's no need to store the entire configtable, it'd be plenty
// enough tostore checker options.
#define ANALYZER_OPTION(TYPE, NAME, CMDFLAG, DESC, DEFAULT_VAL) \
initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEFAULT_VAL);
#define ANALYZER_OPTION_DEPENDS_ON_USER_MODE(TYPE, NAME, CMDFLAG, DESC, \
SHALLOW_VAL, DEEP_VAL) \
switch (AnOpts.getUserMode()) { \
case UMK_Shallow: \
initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, SHALLOW_VAL); \
break; \
case UMK_Deep: \
initOption(AnOpts.Config, Diags, AnOpts.NAME, CMDFLAG, DEEP_VAL); \
break; \
} \
#include "clang/StaticAnalyzer/Core/AnalyzerOptions.def"
#undef ANALYZER_OPTION
#undef ANALYZER_OPTION_DEPENDS_ON_USER_MODE
// At this point, AnalyzerOptions is configured. Let's validate some options.
// FIXME: Here we try to validate the silenced checkers or packages are valid.
// The current approach only validates the registered checkers which does not
// contain the runtime enabled checkers and optimally we would validate both.
if (!AnOpts.RawSilencedCheckersAndPackages.empty()) {
std::vector<StringRef> Checkers =
AnOpts.getRegisteredCheckers(/*IncludeExperimental=*/true);
std::vector<StringRef> Packages =
AnOpts.getRegisteredPackages(/*IncludeExperimental=*/true);
SmallVector<StringRef, 16> CheckersAndPackages;
AnOpts.RawSilencedCheckersAndPackages.split(CheckersAndPackages, ";");
for (const StringRef CheckerOrPackage : CheckersAndPackages) {
if (Diags) {
bool IsChecker = CheckerOrPackage.contains('.');
bool IsValidName =
IsChecker
? llvm::find(Checkers, CheckerOrPackage) != Checkers.end()
: llvm::find(Packages, CheckerOrPackage) != Packages.end();
if (!IsValidName)
Diags->Report(diag::err_unknown_analyzer_checker_or_package)
<< CheckerOrPackage;
}
AnOpts.SilencedCheckersAndPackages.emplace_back(CheckerOrPackage);
}
}
if (!Diags)
return;
if (AnOpts.ShouldTrackConditionsDebug && !AnOpts.ShouldTrackConditions)
Diags->Report(diag::err_analyzer_config_invalid_input)
<< "track-conditions-debug" << "'track-conditions' to also be enabled";
if (!AnOpts.CTUDir.empty() && !llvm::sys::fs::is_directory(AnOpts.CTUDir))
Diags->Report(diag::err_analyzer_config_invalid_input) << "ctu-dir"
<< "a filename";
if (!AnOpts.ModelPath.empty() &&
!llvm::sys::fs::is_directory(AnOpts.ModelPath))
Diags->Report(diag::err_analyzer_config_invalid_input) << "model-path"
<< "a filename";
}
static bool ParseMigratorArgs(MigratorOptions &Opts, ArgList &Args) {
Opts.NoNSAllocReallocError = Args.hasArg(OPT_migrator_no_nsalloc_error);
Opts.NoFinalizeRemoval = Args.hasArg(OPT_migrator_no_finalize_removal);
return true;
}
static void ParseCommentArgs(CommentOptions &Opts, ArgList &Args) {
Opts.BlockCommandNames = Args.getAllArgValues(OPT_fcomment_block_commands);
Opts.ParseAllComments = Args.hasArg(OPT_fparse_all_comments);
}
static StringRef getCodeModel(ArgList &Args, DiagnosticsEngine &Diags) {
if (Arg *A = Args.getLastArg(OPT_mcode_model)) {
StringRef Value = A->getValue();
if (Value == "small" || Value == "kernel" || Value == "medium" ||
Value == "large" || Value == "tiny")
return Value;
Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value;
}
return "default";
}
static llvm::Reloc::Model getRelocModel(ArgList &Args,
DiagnosticsEngine &Diags) {
if (Arg *A = Args.getLastArg(OPT_mrelocation_model)) {
StringRef Value = A->getValue();
auto RM = llvm::StringSwitch<llvm::Optional<llvm::Reloc::Model>>(Value)
.Case("static", llvm::Reloc::Static)
.Case("pic", llvm::Reloc::PIC_)
.Case("ropi", llvm::Reloc::ROPI)
.Case("rwpi", llvm::Reloc::RWPI)
.Case("ropi-rwpi", llvm::Reloc::ROPI_RWPI)
.Case("dynamic-no-pic", llvm::Reloc::DynamicNoPIC)
.Default(None);
if (RM.hasValue())
return *RM;
Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Value;
}
return llvm::Reloc::PIC_;
}
/// Create a new Regex instance out of the string value in \p RpassArg.
/// It returns a pointer to the newly generated Regex instance.
static std::shared_ptr<llvm::Regex>
GenerateOptimizationRemarkRegex(DiagnosticsEngine &Diags, ArgList &Args,
Arg *RpassArg) {
StringRef Val = RpassArg->getValue();
std::string RegexError;
std::shared_ptr<llvm::Regex> Pattern = std::make_shared<llvm::Regex>(Val);
if (!Pattern->isValid(RegexError)) {
Diags.Report(diag::err_drv_optimization_remark_pattern)
<< RegexError << RpassArg->getAsString(Args);
Pattern.reset();
}
return Pattern;
}
static bool parseDiagnosticLevelMask(StringRef FlagName,
const std::vector<std::string> &Levels,
DiagnosticsEngine *Diags,
DiagnosticLevelMask &M) {
bool Success = true;
for (const auto &Level : Levels) {
DiagnosticLevelMask const PM =
llvm::StringSwitch<DiagnosticLevelMask>(Level)
.Case("note", DiagnosticLevelMask::Note)
.Case("remark", DiagnosticLevelMask::Remark)
.Case("warning", DiagnosticLevelMask::Warning)
.Case("error", DiagnosticLevelMask::Error)
.Default(DiagnosticLevelMask::None);
if (PM == DiagnosticLevelMask::None) {
Success = false;
if (Diags)
Diags->Report(diag::err_drv_invalid_value) << FlagName << Level;
}
M = M | PM;
}
return Success;
}
static void parseSanitizerKinds(StringRef FlagName,
const std::vector<std::string> &Sanitizers,
DiagnosticsEngine &Diags, SanitizerSet &S) {
for (const auto &Sanitizer : Sanitizers) {
SanitizerMask K = parseSanitizerValue(Sanitizer, /*AllowGroups=*/false);
if (K == SanitizerMask())
Diags.Report(diag::err_drv_invalid_value) << FlagName << Sanitizer;
else
S.set(K, true);
}
}
static void parseXRayInstrumentationBundle(StringRef FlagName, StringRef Bundle,
ArgList &Args, DiagnosticsEngine &D,
XRayInstrSet &S) {
llvm::SmallVector<StringRef, 2> BundleParts;
llvm::SplitString(Bundle, BundleParts, ",");
for (const auto B : BundleParts) {
auto Mask = parseXRayInstrValue(B);
if (Mask == XRayInstrKind::None)
if (B != "none")
D.Report(diag::err_drv_invalid_value) << FlagName << Bundle;
else
S.Mask = Mask;
else if (Mask == XRayInstrKind::All)
S.Mask = Mask;
else
S.set(Mask, true);
}
}
// Set the profile kind for fprofile-instrument.
static void setPGOInstrumentor(CodeGenOptions &Opts, ArgList &Args,
DiagnosticsEngine &Diags) {
Arg *A = Args.getLastArg(OPT_fprofile_instrument_EQ);
if (A == nullptr)
return;
StringRef S = A->getValue();
unsigned I = llvm::StringSwitch<unsigned>(S)
.Case("none", CodeGenOptions::ProfileNone)
.Case("clang", CodeGenOptions::ProfileClangInstr)
.Case("llvm", CodeGenOptions::ProfileIRInstr)
.Case("csllvm", CodeGenOptions::ProfileCSIRInstr)
.Default(~0U);
if (I == ~0U) {
Diags.Report(diag::err_drv_invalid_pgo_instrumentor) << A->getAsString(Args)
<< S;
return;
}
auto Instrumentor = static_cast<CodeGenOptions::ProfileInstrKind>(I);
Opts.setProfileInstr(Instrumentor);
}
// Set the profile kind using fprofile-instrument-use-path.
static void setPGOUseInstrumentor(CodeGenOptions &Opts,
const Twine &ProfileName) {
auto ReaderOrErr = llvm::IndexedInstrProfReader::create(ProfileName);
// In error, return silently and let Clang PGOUse report the error message.
if (auto E = ReaderOrErr.takeError()) {
llvm::consumeError(std::move(E));
Opts.setProfileUse(CodeGenOptions::ProfileClangInstr);
return;
}
std::unique_ptr<llvm::IndexedInstrProfReader> PGOReader =
std::move(ReaderOrErr.get());
if (PGOReader->isIRLevelProfile()) {
if (PGOReader->hasCSIRLevelProfile())
Opts.setProfileUse(CodeGenOptions::ProfileCSIRInstr);
else
Opts.setProfileUse(CodeGenOptions::ProfileIRInstr);
} else
Opts.setProfileUse(CodeGenOptions::ProfileClangInstr);
}
static bool ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args, InputKind IK,
DiagnosticsEngine &Diags,
const TargetOptions &TargetOpts,
const FrontendOptions &FrontendOpts) {
bool Success = true;
llvm::Triple Triple = llvm::Triple(TargetOpts.Triple);
unsigned OptimizationLevel = getOptimizationLevel(Args, IK, Diags);
// TODO: This could be done in Driver
unsigned MaxOptLevel = 3;
if (OptimizationLevel > MaxOptLevel) {
// If the optimization level is not supported, fall back on the default
// optimization
Diags.Report(diag::warn_drv_optimization_value)
<< Args.getLastArg(OPT_O)->getAsString(Args) << "-O" << MaxOptLevel;
OptimizationLevel = MaxOptLevel;
}
Opts.OptimizationLevel = OptimizationLevel;
// At O0 we want to fully disable inlining outside of cases marked with
// 'alwaysinline' that are required for correctness.
Opts.setInlining((Opts.OptimizationLevel == 0)
? CodeGenOptions::OnlyAlwaysInlining
: CodeGenOptions::NormalInlining);
// Explicit inlining flags can disable some or all inlining even at
// optimization levels above zero.
if (Arg *InlineArg = Args.getLastArg(
options::OPT_finline_functions, options::OPT_finline_hint_functions,
options::OPT_fno_inline_functions, options::OPT_fno_inline)) {
if (Opts.OptimizationLevel > 0) {
const Option &InlineOpt = InlineArg->getOption();
if (InlineOpt.matches(options::OPT_finline_functions))
Opts.setInlining(CodeGenOptions::NormalInlining);
else if (InlineOpt.matches(options::OPT_finline_hint_functions))
Opts.setInlining(CodeGenOptions::OnlyHintInlining);
else
Opts.setInlining(CodeGenOptions::OnlyAlwaysInlining);
}
}
Opts.ExperimentalNewPassManager = Args.hasFlag(
OPT_fexperimental_new_pass_manager, OPT_fno_experimental_new_pass_manager,
/* Default */ ENABLE_EXPERIMENTAL_NEW_PASS_MANAGER);
Opts.DebugPassManager =
Args.hasFlag(OPT_fdebug_pass_manager, OPT_fno_debug_pass_manager,
/* Default */ false);
if (Arg *A = Args.getLastArg(OPT_fveclib)) {
StringRef Name = A->getValue();
if (Name == "Accelerate")
Opts.setVecLib(CodeGenOptions::Accelerate);
else if (Name == "MASSV")
Opts.setVecLib(CodeGenOptions::MASSV);
else if (Name == "SVML")
Opts.setVecLib(CodeGenOptions::SVML);
else if (Name == "none")
Opts.setVecLib(CodeGenOptions::NoLibrary);
else
Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
}
if (Arg *A = Args.getLastArg(OPT_debug_info_kind_EQ)) {
unsigned Val =
llvm::StringSwitch<unsigned>(A->getValue())
.Case("line-tables-only", codegenoptions::DebugLineTablesOnly)
.Case("line-directives-only", codegenoptions::DebugDirectivesOnly)
.Case("limited", codegenoptions::LimitedDebugInfo)
.Case("standalone", codegenoptions::FullDebugInfo)
.Default(~0U);
if (Val == ~0U)
Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
<< A->getValue();
else
Opts.setDebugInfo(static_cast<codegenoptions::DebugInfoKind>(Val));
}
if (Arg *A = Args.getLastArg(OPT_debugger_tuning_EQ)) {
unsigned Val = llvm::StringSwitch<unsigned>(A->getValue())
.Case("gdb", unsigned(llvm::DebuggerKind::GDB))
.Case("lldb", unsigned(llvm::DebuggerKind::LLDB))
.Case("sce", unsigned(llvm::DebuggerKind::SCE))
.Default(~0U);
if (Val == ~0U)
Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
<< A->getValue();
else
Opts.setDebuggerTuning(static_cast<llvm::DebuggerKind>(Val));
}
Opts.DwarfVersion = getLastArgIntValue(Args, OPT_dwarf_version_EQ, 0, Diags);
Opts.DebugColumnInfo = Args.hasArg(OPT_dwarf_column_info);
Opts.EmitCodeView = Args.hasArg(OPT_gcodeview);
Opts.CodeViewGHash = Args.hasArg(OPT_gcodeview_ghash);
Opts.MacroDebugInfo = Args.hasArg(OPT_debug_info_macro);
Opts.WholeProgramVTables = Args.hasArg(OPT_fwhole_program_vtables);
Opts.VirtualFunctionElimination =
Args.hasArg(OPT_fvirtual_function_elimination);
Opts.LTOVisibilityPublicStd = Args.hasArg(OPT_flto_visibility_public_std);
Opts.SplitDwarfFile = Args.getLastArgValue(OPT_split_dwarf_file);
Opts.SplitDwarfOutput = Args.getLastArgValue(OPT_split_dwarf_output);
Opts.SplitDwarfInlining = !Args.hasArg(OPT_fno_split_dwarf_inlining);
Opts.DebugTypeExtRefs = Args.hasArg(OPT_dwarf_ext_refs);
Opts.DebugExplicitImport = Args.hasArg(OPT_dwarf_explicit_import);
Opts.DebugFwdTemplateParams = Args.hasArg(OPT_debug_forward_template_params);
Opts.EmbedSource = Args.hasArg(OPT_gembed_source);
for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ))
Opts.DebugPrefixMap.insert(StringRef(Arg).split('='));
if (const Arg *A =
Args.getLastArg(OPT_emit_llvm_uselists, OPT_no_emit_llvm_uselists))
Opts.EmitLLVMUseLists = A->getOption().getID() == OPT_emit_llvm_uselists;
Opts.DisableLLVMPasses = Args.hasArg(OPT_disable_llvm_passes);
Opts.DisableLifetimeMarkers = Args.hasArg(OPT_disable_lifetimemarkers);
const llvm::Triple::ArchType DebugEntryValueArchs[] = {
llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64,
llvm::Triple::arm, llvm::Triple::armeb};
llvm::Triple T(TargetOpts.Triple);
if (Opts.OptimizationLevel > 0 &&
Opts.getDebugInfo() >= codegenoptions::LimitedDebugInfo &&
llvm::is_contained(DebugEntryValueArchs, T.getArch()))
Opts.EnableDebugEntryValues = Args.hasArg(OPT_femit_debug_entry_values);
Opts.DisableO0ImplyOptNone = Args.hasArg(OPT_disable_O0_optnone);
Opts.DisableRedZone = Args.hasArg(OPT_disable_red_zone);
Opts.IndirectTlsSegRefs = Args.hasArg(OPT_mno_tls_direct_seg_refs);
Opts.ForbidGuardVariables = Args.hasArg(OPT_fforbid_guard_variables);
Opts.UseRegisterSizedBitfieldAccess = Args.hasArg(
OPT_fuse_register_sized_bitfield_access);
Opts.RelaxedAliasing = Args.hasArg(OPT_relaxed_aliasing);
Opts.StructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa);
Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) &&
Args.hasArg(OPT_new_struct_path_tbaa);
Opts.FineGrainedBitfieldAccesses =
Args.hasFlag(OPT_ffine_grained_bitfield_accesses,
OPT_fno_fine_grained_bitfield_accesses, false);
Opts.DwarfDebugFlags = Args.getLastArgValue(OPT_dwarf_debug_flags);
Opts.RecordCommandLine = Args.getLastArgValue(OPT_record_command_line);
Opts.MergeAllConstants = Args.hasArg(OPT_fmerge_all_constants);
Opts.NoCommon = Args.hasArg(OPT_fno_common);
Opts.NoImplicitFloat = Args.hasArg(OPT_no_implicit_float);
Opts.OptimizeSize = getOptimizationLevelSize(Args);
Opts.SimplifyLibCalls = !(Args.hasArg(OPT_fno_builtin) ||
Args.hasArg(OPT_ffreestanding));
if (Opts.SimplifyLibCalls)
getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs);
Opts.UnrollLoops =
Args.hasFlag(OPT_funroll_loops, OPT_fno_unroll_loops,
(Opts.OptimizationLevel > 1));
Opts.RerollLoops = Args.hasArg(OPT_freroll_loops);
Opts.DisableIntegratedAS = Args.hasArg(OPT_fno_integrated_as);
Opts.Autolink = !Args.hasArg(OPT_fno_autolink);
Opts.SampleProfileFile = Args.getLastArgValue(OPT_fprofile_sample_use_EQ);
Opts.DebugInfoForProfiling = Args.hasFlag(
OPT_fdebug_info_for_profiling, OPT_fno_debug_info_for_profiling, false);
Opts.DebugNameTable = static_cast<unsigned>(
Args.hasArg(OPT_ggnu_pubnames)
? llvm::DICompileUnit::DebugNameTableKind::GNU
: Args.hasArg(OPT_gpubnames)
? llvm::DICompileUnit::DebugNameTableKind::Default
: llvm::DICompileUnit::DebugNameTableKind::None);
Opts.DebugRangesBaseAddress = Args.hasArg(OPT_fdebug_ranges_base_address);
setPGOInstrumentor(Opts, Args, Diags);
Opts.InstrProfileOutput =
Args.getLastArgValue(OPT_fprofile_instrument_path_EQ);
Opts.ProfileInstrumentUsePath =
Args.getLastArgValue(OPT_fprofile_instrument_use_path_EQ);
if (!Opts.ProfileInstrumentUsePath.empty())
setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath);
Opts.ProfileRemappingFile =
Args.getLastArgValue(OPT_fprofile_remapping_file_EQ);
if (!Opts.ProfileRemappingFile.empty() && !Opts.ExperimentalNewPassManager) {
Diags.Report(diag::err_drv_argument_only_allowed_with)
<< Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args)
<< "-fexperimental-new-pass-manager";
}
Opts.CoverageMapping =
Args.hasFlag(OPT_fcoverage_mapping, OPT_fno_coverage_mapping, false);
Opts.DumpCoverageMapping = Args.hasArg(OPT_dump_coverage_mapping);
Opts.AsmVerbose = Args.hasArg(OPT_masm_verbose);
Opts.PreserveAsmComments = !Args.hasArg(OPT_fno_preserve_as_comments);
Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
Opts.ObjCAutoRefCountExceptions = Args.hasArg(OPT_fobjc_arc_exceptions);
Opts.CXAAtExit = !Args.hasArg(OPT_fno_use_cxa_atexit);
Opts.RegisterGlobalDtorsWithAtExit =
Args.hasArg(OPT_fregister_global_dtors_with_atexit);
Opts.CXXCtorDtorAliases = Args.hasArg(OPT_mconstructor_aliases);
Opts.CodeModel = TargetOpts.CodeModel;
Opts.DebugPass = Args.getLastArgValue(OPT_mdebug_pass);
// Handle -mframe-pointer option.
if (Arg *A = Args.getLastArg(OPT_mframe_pointer_EQ)) {
CodeGenOptions::FramePointerKind FP;
StringRef Name = A->getValue();
bool ValidFP = true;
if (Name == "none")
FP = CodeGenOptions::FramePointerKind::None;
else if (Name == "non-leaf")
FP = CodeGenOptions::FramePointerKind::NonLeaf;
else if (Name == "all")
FP = CodeGenOptions::FramePointerKind::All;
else {
Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
Success = false;
ValidFP = false;
}
if (ValidFP)
Opts.setFramePointer(FP);
}
// -pg may override -mframe-pointer
// TODO: This should be merged into getFramePointerKind in Clang.cpp.
if (Args.hasArg(OPT_pg))
Opts.setFramePointer(CodeGenOptions::FramePointerKind::All);
Opts.DisableFree = Args.hasArg(OPT_disable_free);
Opts.DiscardValueNames = Args.hasArg(OPT_discard_value_names);
Opts.DisableTailCalls = Args.hasArg(OPT_mdisable_tail_calls);
Opts.NoEscapingBlockTailCalls =
Args.hasArg(OPT_fno_escaping_block_tail_calls);
Opts.FloatABI = Args.getLastArgValue(OPT_mfloat_abi);
Opts.LessPreciseFPMAD = Args.hasArg(OPT_cl_mad_enable) ||
Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
Args.hasArg(OPT_cl_fast_relaxed_math);
Opts.LimitFloatPrecision = Args.getLastArgValue(OPT_mlimit_float_precision);
Opts.NoInfsFPMath = (Args.hasArg(OPT_menable_no_infinities) ||
Args.hasArg(OPT_cl_finite_math_only) ||
Args.hasArg(OPT_cl_fast_relaxed_math));
Opts.NoNaNsFPMath = (Args.hasArg(OPT_menable_no_nans) ||
Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
Args.hasArg(OPT_cl_finite_math_only) ||
Args.hasArg(OPT_cl_fast_relaxed_math));
Opts.NoSignedZeros = (Args.hasArg(OPT_fno_signed_zeros) ||
Args.hasArg(OPT_cl_no_signed_zeros) ||
Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
Args.hasArg(OPT_cl_fast_relaxed_math));
Opts.Reassociate = Args.hasArg(OPT_mreassociate);
Opts.FlushDenorm = Args.hasArg(OPT_cl_denorms_are_zero) ||
(Args.hasArg(OPT_fcuda_is_device) &&
Args.hasArg(OPT_fcuda_flush_denormals_to_zero));
Opts.CorrectlyRoundedDivSqrt =
Args.hasArg(OPT_cl_fp32_correctly_rounded_divide_sqrt);
Opts.UniformWGSize =
Args.hasArg(OPT_cl_uniform_work_group_size);
Opts.Reciprocals = Args.getAllArgValues(OPT_mrecip_EQ);
Opts.ReciprocalMath = Args.hasArg(OPT_freciprocal_math);
Opts.NoTrappingMath = Args.hasArg(OPT_fno_trapping_math);
Opts.StrictFloatCastOverflow =
!Args.hasArg(OPT_fno_strict_float_cast_overflow);
Opts.NoZeroInitializedInBSS = Args.hasArg(OPT_mno_zero_initialized_in_bss);
Opts.NumRegisterParameters = getLastArgIntValue(Args, OPT_mregparm, 0, Diags);
Opts.NoExecStack = Args.hasArg(OPT_mno_exec_stack);
Opts.FatalWarnings = Args.hasArg(OPT_massembler_fatal_warnings);
Opts.NoWarn = Args.hasArg(OPT_massembler_no_warn);
Opts.EnableSegmentedStacks = Args.hasArg(OPT_split_stacks);
Opts.RelaxAll = Args.hasArg(OPT_mrelax_all);
Opts.IncrementalLinkerCompatible =
Args.hasArg(OPT_mincremental_linker_compatible);
Opts.PIECopyRelocations =
Args.hasArg(OPT_mpie_copy_relocations);
Opts.NoPLT = Args.hasArg(OPT_fno_plt);
Opts.SaveTempLabels = Args.hasArg(OPT_msave_temp_labels);
Opts.NoDwarfDirectoryAsm = Args.hasArg(OPT_fno_dwarf_directory_asm);
Opts.SoftFloat = Args.hasArg(OPT_msoft_float);
Opts.StrictEnums = Args.hasArg(OPT_fstrict_enums);
Opts.StrictReturn = !Args.hasArg(OPT_fno_strict_return);
Opts.StrictVTablePointers = Args.hasArg(OPT_fstrict_vtable_pointers);
Opts.ForceEmitVTables = Args.hasArg(OPT_fforce_emit_vtables);
Opts.UnsafeFPMath = Args.hasArg(OPT_menable_unsafe_fp_math) ||
Args.hasArg(OPT_cl_unsafe_math_optimizations) ||
Args.hasArg(OPT_cl_fast_relaxed_math);
Opts.UnwindTables = Args.hasArg(OPT_munwind_tables);
Opts.RelocationModel = getRelocModel(Args, Diags);
Opts.ThreadModel = Args.getLastArgValue(OPT_mthread_model, "posix");
if (Opts.ThreadModel != "posix" && Opts.ThreadModel != "single")
Diags.Report(diag::err_drv_invalid_value)
<< Args.getLastArg(OPT_mthread_model)->getAsString(Args)
<< Opts.ThreadModel;
Opts.TrapFuncName = Args.getLastArgValue(OPT_ftrap_function_EQ);
Opts.UseInitArray = Args.hasArg(OPT_fuse_init_array);
Opts.FunctionSections = Args.hasFlag(OPT_ffunction_sections,
OPT_fno_function_sections, false);
Opts.DataSections = Args.hasFlag(OPT_fdata_sections,
OPT_fno_data_sections, false);
Opts.StackSizeSection =
Args.hasFlag(OPT_fstack_size_section, OPT_fno_stack_size_section, false);
Opts.UniqueSectionNames = Args.hasFlag(OPT_funique_section_names,
OPT_fno_unique_section_names, true);
Opts.MergeFunctions = Args.hasArg(OPT_fmerge_functions);
Opts.NoUseJumpTables = Args.hasArg(OPT_fno_jump_tables);
Opts.NullPointerIsValid = Args.hasArg(OPT_fno_delete_null_pointer_checks);
Opts.ProfileSampleAccurate = Args.hasArg(OPT_fprofile_sample_accurate);
Opts.PrepareForLTO = Args.hasArg(OPT_flto, OPT_flto_EQ);
Opts.PrepareForThinLTO = false;
if (Arg *A = Args.getLastArg(OPT_flto_EQ)) {
StringRef S = A->getValue();
if (S == "thin")
Opts.PrepareForThinLTO = true;
else if (S != "full")
Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << S;
}
Opts.LTOUnit = Args.hasFlag(OPT_flto_unit, OPT_fno_lto_unit, false);
Opts.EnableSplitLTOUnit = Args.hasArg(OPT_fsplit_lto_unit);
if (Arg *A = Args.getLastArg(OPT_fthinlto_index_EQ)) {
if (IK.getLanguage() != Language::LLVM_IR)
Diags.Report(diag::err_drv_argument_only_allowed_with)
<< A->getAsString(Args) << "-x ir";
Opts.ThinLTOIndexFile = Args.getLastArgValue(OPT_fthinlto_index_EQ);
}
if (Arg *A = Args.getLastArg(OPT_save_temps_EQ))
Opts.SaveTempsFilePrefix =
llvm::StringSwitch<std::string>(A->getValue())
.Case("obj", FrontendOpts.OutputFile)
.Default(llvm::sys::path::filename(FrontendOpts.OutputFile).str());
Opts.ThinLinkBitcodeFile = Args.getLastArgValue(OPT_fthin_link_bitcode_EQ);
Opts.MSVolatile = Args.hasArg(OPT_fms_volatile);
Opts.VectorizeLoop = Args.hasArg(OPT_vectorize_loops);
Opts.VectorizeSLP = Args.hasArg(OPT_vectorize_slp);
Opts.PreferVectorWidth = Args.getLastArgValue(OPT_mprefer_vector_width_EQ);
Opts.MainFileName = Args.getLastArgValue(OPT_main_file_name);
Opts.VerifyModule = !Args.hasArg(OPT_disable_llvm_verifier);
Opts.ControlFlowGuard = Args.hasArg(OPT_cfguard);
Opts.DisableGCov = Args.hasArg(OPT_test_coverage);
Opts.EmitGcovArcs = Args.hasArg(OPT_femit_coverage_data);
Opts.EmitGcovNotes = Args.hasArg(OPT_femit_coverage_notes);
if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) {
Opts.CoverageDataFile = Args.getLastArgValue(OPT_coverage_data_file);
Opts.CoverageNotesFile = Args.getLastArgValue(OPT_coverage_notes_file);
Opts.CoverageExtraChecksum = Args.hasArg(OPT_coverage_cfg_checksum);
Opts.CoverageNoFunctionNamesInData =
Args.hasArg(OPT_coverage_no_function_names_in_data);
Opts.ProfileFilterFiles =
Args.getLastArgValue(OPT_fprofile_filter_files_EQ);
Opts.ProfileExcludeFiles =
Args.getLastArgValue(OPT_fprofile_exclude_files_EQ);
Opts.CoverageExitBlockBeforeBody =
Args.hasArg(OPT_coverage_exit_block_before_body);
if (Args.hasArg(OPT_coverage_version_EQ)) {
StringRef CoverageVersion = Args.getLastArgValue(OPT_coverage_version_EQ);
if (CoverageVersion.size() != 4) {
Diags.Report(diag::err_drv_invalid_value)
<< Args.getLastArg(OPT_coverage_version_EQ)->getAsString(Args)
<< CoverageVersion;
} else {
memcpy(Opts.CoverageVersion, CoverageVersion.data(), 4);
}
}
}
// Handle -fembed-bitcode option.
if (Arg *A = Args.getLastArg(OPT_fembed_bitcode_EQ)) {
StringRef Name = A->getValue();
unsigned Model = llvm::StringSwitch<unsigned>(Name)
.Case("off", CodeGenOptions::Embed_Off)
.Case("all", CodeGenOptions::Embed_All)
.Case("bitcode", CodeGenOptions::Embed_Bitcode)
.Case("marker", CodeGenOptions::Embed_Marker)
.Default(~0U);
if (Model == ~0U) {
Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
Success = false;
} else
Opts.setEmbedBitcode(
static_cast<CodeGenOptions::EmbedBitcodeKind>(Model));
}
// FIXME: For backend options that are not yet recorded as function
// attributes in the IR, keep track of them so we can embed them in a
// separate data section and use them when building the bitcode.
if (Opts.getEmbedBitcode() == CodeGenOptions::Embed_All) {
for (const auto &A : Args) {
// Do not encode output and input.
if (A->getOption().getID() == options::OPT_o ||
A->getOption().getID() == options::OPT_INPUT ||
A->getOption().getID() == options::OPT_x ||
A->getOption().getID() == options::OPT_fembed_bitcode ||
(A->getOption().getGroup().isValid() &&
A->getOption().getGroup().getID() == options::OPT_W_Group))
continue;
ArgStringList ASL;
A->render(Args, ASL);
for (const auto &arg : ASL) {
StringRef ArgStr(arg);
Opts.CmdArgs.insert(Opts.CmdArgs.end(), ArgStr.begin(), ArgStr.end());
// using \00 to separate each commandline options.
Opts.CmdArgs.push_back('\0');
}
}
}
Opts.PreserveVec3Type = Args.hasArg(OPT_fpreserve_vec3_type);
Opts.InstrumentFunctions = Args.hasArg(OPT_finstrument_functions);
Opts.InstrumentFunctionsAfterInlining =
Args.hasArg(OPT_finstrument_functions_after_inlining);
Opts.InstrumentFunctionEntryBare =
Args.hasArg(OPT_finstrument_function_entry_bare);
Opts.XRayInstrumentFunctions =
Args.hasArg(OPT_fxray_instrument);
Opts.XRayAlwaysEmitCustomEvents =
Args.hasArg(OPT_fxray_always_emit_customevents);
Opts.XRayAlwaysEmitTypedEvents =
Args.hasArg(OPT_fxray_always_emit_typedevents);
Opts.XRayInstructionThreshold =
getLastArgIntValue(Args, OPT_fxray_instruction_threshold_EQ, 200, Diags);
auto XRayInstrBundles =
Args.getAllArgValues(OPT_fxray_instrumentation_bundle);
if (XRayInstrBundles.empty())
Opts.XRayInstrumentationBundle.Mask = XRayInstrKind::All;
else
for (const auto &A : XRayInstrBundles)
parseXRayInstrumentationBundle("-fxray-instrumentation-bundle=", A, Args,
Diags, Opts.XRayInstrumentationBundle);
Opts.InstrumentForProfiling = Args.hasArg(OPT_pg);
Opts.CallFEntry = Args.hasArg(OPT_mfentry);
Opts.EmitOpenCLArgMetadata = Args.hasArg(OPT_cl_kernel_arg_info);
if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) {
StringRef Name = A->getValue();
if (Name == "full") {
Opts.CFProtectionReturn = 1;
Opts.CFProtectionBranch = 1;
} else if (Name == "return")
Opts.CFProtectionReturn = 1;
else if (Name == "branch")
Opts.CFProtectionBranch = 1;
else if (Name != "none") {
Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
Success = false;
}
}
if (const Arg *A = Args.getLastArg(OPT_compress_debug_sections,
OPT_compress_debug_sections_EQ)) {
if (A->getOption().getID() == OPT_compress_debug_sections) {
// TODO: be more clever about the compression type auto-detection
Opts.setCompressDebugSections(llvm::DebugCompressionType::GNU);
} else {
auto DCT = llvm::StringSwitch<llvm::DebugCompressionType>(A->getValue())
.Case("none", llvm::DebugCompressionType::None)
.Case("zlib", llvm::DebugCompressionType::Z)
.Case("zlib-gnu", llvm::DebugCompressionType::GNU)
.Default(llvm::DebugCompressionType::None);
Opts.setCompressDebugSections(DCT);
}
}
Opts.RelaxELFRelocations = Args.hasArg(OPT_mrelax_relocations);
Opts.DebugCompilationDir = Args.getLastArgValue(OPT_fdebug_compilation_dir);
for (auto *A :
Args.filtered(OPT_mlink_bitcode_file, OPT_mlink_builtin_bitcode)) {
CodeGenOptions::BitcodeFileToLink F;
F.Filename = A->getValue();
if (A->getOption().matches(OPT_mlink_builtin_bitcode)) {
F.LinkFlags = llvm::Linker::Flags::LinkOnlyNeeded;
// When linking CUDA bitcode, propagate function attributes so that
// e.g. libdevice gets fast-math attrs if we're building with fast-math.
F.PropagateAttrs = true;
F.Internalize = true;
}
Opts.LinkBitcodeFiles.push_back(F);
}
Opts.SanitizeCoverageType =
getLastArgIntValue(Args, OPT_fsanitize_coverage_type, 0, Diags);
Opts.SanitizeCoverageIndirectCalls =
Args.hasArg(OPT_fsanitize_coverage_indirect_calls);
Opts.SanitizeCoverageTraceBB = Args.hasArg(OPT_fsanitize_coverage_trace_bb);
Opts.SanitizeCoverageTraceCmp = Args.hasArg(OPT_fsanitize_coverage_trace_cmp);
Opts.SanitizeCoverageTraceDiv = Args.hasArg(OPT_fsanitize_coverage_trace_div);
Opts.SanitizeCoverageTraceGep = Args.hasArg(OPT_fsanitize_coverage_trace_gep);
Opts.SanitizeCoverage8bitCounters =
Args.hasArg(OPT_fsanitize_coverage_8bit_counters);
Opts.SanitizeCoverageTracePC = Args.hasArg(OPT_fsanitize_coverage_trace_pc);
Opts.SanitizeCoverageTracePCGuard =
Args.hasArg(OPT_fsanitize_coverage_trace_pc_guard);
Opts.SanitizeCoverageNoPrune = Args.hasArg(OPT_fsanitize_coverage_no_prune);
Opts.SanitizeCoverageInline8bitCounters =
Args.hasArg(OPT_fsanitize_coverage_inline_8bit_counters);
Opts.SanitizeCoveragePCTable = Args.hasArg(OPT_fsanitize_coverage_pc_table);
Opts.SanitizeCoverageStackDepth =
Args.hasArg(OPT_fsanitize_coverage_stack_depth);
Opts.SanitizeMemoryTrackOrigins =
getLastArgIntValue(Args, OPT_fsanitize_memory_track_origins_EQ, 0, Diags);
Opts.SanitizeMemoryUseAfterDtor =
Args.hasFlag(OPT_fsanitize_memory_use_after_dtor,
OPT_fno_sanitize_memory_use_after_dtor,
false);
Opts.SanitizeMinimalRuntime = Args.hasArg(OPT_fsanitize_minimal_runtime);
Opts.SanitizeCfiCrossDso = Args.hasArg(OPT_fsanitize_cfi_cross_dso);
Opts.SanitizeCfiICallGeneralizePointers =
Args.hasArg(OPT_fsanitize_cfi_icall_generalize_pointers);
Opts.SanitizeCfiCanonicalJumpTables =
Args.hasArg(OPT_fsanitize_cfi_canonical_jump_tables);
Opts.SanitizeStats = Args.hasArg(OPT_fsanitize_stats);
if (Arg *A = Args.getLastArg(
OPT_fsanitize_address_poison_custom_array_cookie,
OPT_fno_sanitize_address_poison_custom_array_cookie)) {
Opts.SanitizeAddressPoisonCustomArrayCookie =
A->getOption().getID() ==
OPT_fsanitize_address_poison_custom_array_cookie;
}
if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_after_scope,
OPT_fno_sanitize_address_use_after_scope)) {
Opts.SanitizeAddressUseAfterScope =
A->getOption().getID() == OPT_fsanitize_address_use_after_scope;
}
Opts.SanitizeAddressGlobalsDeadStripping =
Args.hasArg(OPT_fsanitize_address_globals_dead_stripping);
if (Arg *A = Args.getLastArg(OPT_fsanitize_address_use_odr_indicator,
OPT_fno_sanitize_address_use_odr_indicator)) {
Opts.SanitizeAddressUseOdrIndicator =
A->getOption().getID() == OPT_fsanitize_address_use_odr_indicator;
}
Opts.SSPBufferSize =
getLastArgIntValue(Args, OPT_stack_protector_buffer_size, 8, Diags);
Opts.StackRealignment = Args.hasArg(OPT_mstackrealign);
if (Arg *A = Args.getLastArg(OPT_mstack_alignment)) {
StringRef Val = A->getValue();
unsigned StackAlignment = Opts.StackAlignment;
Val.getAsInteger(10, StackAlignment);
Opts.StackAlignment = StackAlignment;
}
if (Arg *A = Args.getLastArg(OPT_mstack_probe_size)) {
StringRef Val = A->getValue();
unsigned StackProbeSize = Opts.StackProbeSize;
Val.getAsInteger(0, StackProbeSize);
Opts.StackProbeSize = StackProbeSize;
}
Opts.NoStackArgProbe = Args.hasArg(OPT_mno_stack_arg_probe);
if (Arg *A = Args.getLastArg(OPT_fobjc_dispatch_method_EQ)) {
StringRef Name = A->getValue();
unsigned Method = llvm::StringSwitch<unsigned>(Name)
.Case("legacy", CodeGenOptions::Legacy)
.Case("non-legacy", CodeGenOptions::NonLegacy)
.Case("mixed", CodeGenOptions::Mixed)
.Default(~0U);
if (Method == ~0U) {
Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
Success = false;
} else {
Opts.setObjCDispatchMethod(
static_cast<CodeGenOptions::ObjCDispatchMethodKind>(Method));
}
}
if (Args.hasArg(OPT_fno_objc_convert_messages_to_runtime_calls))
Opts.ObjCConvertMessagesToRuntimeCalls = 0;
if (Args.getLastArg(OPT_femulated_tls) ||
Args.getLastArg(OPT_fno_emulated_tls)) {
Opts.ExplicitEmulatedTLS = true;
Opts.EmulatedTLS =
Args.hasFlag(OPT_femulated_tls, OPT_fno_emulated_tls, false);
}
if (Arg *A = Args.getLastArg(OPT_ftlsmodel_EQ)) {
StringRef Name = A->getValue();
unsigned Model = llvm::StringSwitch<unsigned>(Name)
.Case("global-dynamic", CodeGenOptions::GeneralDynamicTLSModel)
.Case("local-dynamic", CodeGenOptions::LocalDynamicTLSModel)
.Case("initial-exec", CodeGenOptions::InitialExecTLSModel)
.Case("local-exec", CodeGenOptions::LocalExecTLSModel)
.Default(~0U);
if (Model == ~0U) {
Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Name;
Success = false;
} else {
Opts.setDefaultTLSModel(static_cast<CodeGenOptions::TLSModel>(Model));
}
}
if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) {
StringRef Val = A->getValue();
if (Val == "ieee")
Opts.FPDenormalMode = "ieee";
else if (Val == "preserve-sign")
Opts.FPDenormalMode = "preserve-sign";
else if (Val == "positive-zero")
Opts.FPDenormalMode = "positive-zero";
else
Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
}
if (Arg *A = Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return)) {
if (A->getOption().matches(OPT_fpcc_struct_return)) {
Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack);
} else {
assert(A->getOption().matches(OPT_freg_struct_return));
Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs);
}
}
Opts.DependentLibraries = Args.getAllArgValues(OPT_dependent_lib);
Opts.LinkerOptions = Args.getAllArgValues(OPT_linker_option);
bool NeedLocTracking = false;
Opts.OptRecordFile = Args.getLastArgValue(OPT_opt_record_file);
if (!Opts.OptRecordFile.empty())
NeedLocTracking = true;
if (Arg *A = Args.getLastArg(OPT_opt_record_passes)) {
Opts.OptRecordPasses = A->getValue();
NeedLocTracking = true;
}
if (Arg *A = Args.getLastArg(OPT_opt_record_format)) {
Opts.OptRecordFormat = A->getValue();
NeedLocTracking = true;
}
if (Arg *A = Args.getLastArg(OPT_Rpass_EQ)) {
Opts.OptimizationRemarkPattern =
GenerateOptimizationRemarkRegex(Diags, Args, A);
NeedLocTracking = true;
}
if (Arg *A = Args.getLastArg(OPT_Rpass_missed_EQ)) {
Opts.OptimizationRemarkMissedPattern =
GenerateOptimizationRemarkRegex(Diags, Args, A);
NeedLocTracking = true;
}
if (Arg *A = Args.getLastArg(OPT_Rpass_analysis_EQ)) {
Opts.OptimizationRemarkAnalysisPattern =
GenerateOptimizationRemarkRegex(Diags, Args, A);
NeedLocTracking = true;
}
Opts.DiagnosticsWithHotness =
Args.hasArg(options::OPT_fdiagnostics_show_hotness);
bool UsingSampleProfile = !Opts.SampleProfileFile.empty();
bool UsingProfile = UsingSampleProfile ||
(Opts.getProfileUse() != CodeGenOptions::ProfileNone);
if (Opts.DiagnosticsWithHotness && !UsingProfile &&
// An IR file will contain PGO as metadata
IK.getLanguage() != Language::LLVM_IR)
Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo)
<< "-fdiagnostics-show-hotness";
Opts.DiagnosticsHotnessThreshold = getLastArgUInt64Value(
Args, options::OPT_fdiagnostics_hotness_threshold_EQ, 0);
if (Opts.DiagnosticsHotnessThreshold > 0 && !UsingProfile)
Diags.Report(diag::warn_drv_diagnostics_hotness_requires_pgo)
<< "-fdiagnostics-hotness-threshold=";
// If the user requested to use a sample profile for PGO, then the
// backend will need to track source location information so the profile
// can be incorporated into the IR.
if (UsingSampleProfile)
NeedLocTracking = true;
// If the user requested a flag that requires source locations available in
// the backend, make sure that the backend tracks source location information.
if (NeedLocTracking && Opts.getDebugInfo() == codegenoptions::NoDebugInfo)
Opts.setDebugInfo(codegenoptions::LocTrackingOnly);
Opts.RewriteMapFiles = Args.getAllArgValues(OPT_frewrite_map_file);
// Parse -fsanitize-recover= arguments.
// FIXME: Report unrecoverable sanitizers incorrectly specified here.
parseSanitizerKinds("-fsanitize-recover=",
Args.getAllArgValues(OPT_fsanitize_recover_EQ), Diags,
Opts.SanitizeRecover);
parseSanitizerKinds("-fsanitize-trap=",
Args.getAllArgValues(OPT_fsanitize_trap_EQ), Diags,
Opts.SanitizeTrap);
Opts.CudaGpuBinaryFileName =
Args.getLastArgValue(OPT_fcuda_include_gpubinary);
Opts.Backchain = Args.hasArg(OPT_mbackchain);
Opts.EmitCheckPathComponentsToStrip = getLastArgIntValue(
Args, OPT_fsanitize_undefined_strip_path_components_EQ, 0, Diags);
Opts.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true);
Opts.Addrsig = Args.hasArg(OPT_faddrsig);
if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) {
StringRef SignScope = A->getValue();
if (SignScope.equals_lower("none"))
Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::None);
else if (SignScope.equals_lower("all"))
Opts.setSignReturnAddress(CodeGenOptions::SignReturnAddressScope::All);
else if (SignScope.equals_lower("non-leaf"))
Opts.setSignReturnAddress(
CodeGenOptions::SignReturnAddressScope::NonLeaf);
else
Diags.Report(diag::err_drv_invalid_value)
<< A->getAsString(Args) << SignScope;
if (Arg *A = Args.getLastArg(OPT_msign_return_address_key_EQ)) {
StringRef SignKey = A->getValue();
if (!SignScope.empty() && !SignKey.empty()) {
if (SignKey.equals_lower("a_key"))
Opts.setSignReturnAddressKey(
CodeGenOptions::SignReturnAddressKeyValue::AKey);
else if (SignKey.equals_lower("b_key"))
Opts.setSignReturnAddressKey(
CodeGenOptions::SignReturnAddressKeyValue::BKey);
else
Diags.Report(diag::err_drv_invalid_value)
<< A->getAsString(Args) << SignKey;
}
}
}
Opts.BranchTargetEnforcement = Args.hasArg(OPT_mbranch_target_enforce);
Opts.KeepStaticConsts = Args.hasArg(OPT_fkeep_static_consts);
Opts.SpeculativeLoadHardening = Args.hasArg(OPT_mspeculative_load_hardening);
Opts.DefaultFunctionAttrs = Args.getAllArgValues(OPT_default_function_attr);
Opts.PassPlugins = Args.getAllArgValues(OPT_fpass_plugin_EQ);
Opts.SymbolPartition = Args.getLastArgValue(OPT_fsymbol_partition_EQ);
return Success;
}
static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
ArgList &Args) {
Opts.OutputFile = Args.getLastArgValue(OPT_dependency_file);
Opts.Targets = Args.getAllArgValues(OPT_MT);
Opts.IncludeSystemHeaders = Args.hasArg(OPT_sys_header_deps);
Opts.IncludeModuleFiles = Args.hasArg(OPT_module_file_deps);
Opts.UsePhonyTargets = Args.hasArg(OPT_MP);
Opts.ShowHeaderIncludes = Args.hasArg(OPT_H);
Opts.HeaderIncludeOutputFile = Args.getLastArgValue(OPT_header_include_file);
Opts.AddMissingHeaderDeps = Args.hasArg(OPT_MG);
if (Args.hasArg(OPT_show_includes)) {
// Writing both /showIncludes and preprocessor output to stdout
// would produce interleaved output, so use stderr for /showIncludes.
// This behaves the same as cl.exe, when /E, /EP or /P are passed.
if (Args.hasArg(options::OPT_E) || Args.hasArg(options::OPT_P))
Opts.ShowIncludesDest = ShowIncludesDestination::Stderr;
else
Opts.ShowIncludesDest = ShowIncludesDestination::Stdout;
} else {
Opts.ShowIncludesDest = ShowIncludesDestination::None;
}
Opts.DOTOutputFile = Args.getLastArgValue(OPT_dependency_dot);
Opts.ModuleDependencyOutputDir =
Args.getLastArgValue(OPT_module_dependency_dir);
if (Args.hasArg(OPT_MV))
Opts.OutputFormat = DependencyOutputFormat::NMake;
// Add sanitizer blacklists as extra dependencies.
// They won't be discovered by the regular preprocessor, so
// we let make / ninja to know about this implicit dependency.
Opts.ExtraDeps = Args.getAllArgValues(OPT_fdepfile_entry);
// Only the -fmodule-file=<file> form.
for (const auto *A : Args.filtered(OPT_fmodule_file)) {
StringRef Val = A->getValue();
if (Val.find('=') == StringRef::npos)
Opts.ExtraDeps.push_back(Val);
}
}
static bool parseShowColorsArgs(const ArgList &Args, bool DefaultColor) {
// Color diagnostics default to auto ("on" if terminal supports) in the driver
// but default to off in cc1, needing an explicit OPT_fdiagnostics_color.
// Support both clang's -f[no-]color-diagnostics and gcc's
// -f[no-]diagnostics-colors[=never|always|auto].
enum {
Colors_On,
Colors_Off,
Colors_Auto
} ShowColors = DefaultColor ? Colors_Auto : Colors_Off;
for (auto *A : Args) {
const Option &O = A->getOption();
if (O.matches(options::OPT_fcolor_diagnostics) ||
O.matches(options::OPT_fdiagnostics_color)) {
ShowColors = Colors_On;
} else if (O.matches(options::OPT_fno_color_diagnostics) ||
O.matches(options::OPT_fno_diagnostics_color)) {
ShowColors = Colors_Off;
} else if (O.matches(options::OPT_fdiagnostics_color_EQ)) {
StringRef Value(A->getValue());
if (Value == "always")
ShowColors = Colors_On;
else if (Value == "never")
ShowColors = Colors_Off;
else if (Value == "auto")
ShowColors = Colors_Auto;
}
}
return ShowColors == Colors_On ||
(ShowColors == Colors_Auto &&
llvm::sys::Process::StandardErrHasColors());
}
static bool checkVerifyPrefixes(const std::vector<std::string> &VerifyPrefixes,
DiagnosticsEngine *Diags) {
bool Success = true;
for (const auto &Prefix : VerifyPrefixes) {
// Every prefix must start with a letter and contain only alphanumeric
// characters, hyphens, and underscores.
auto BadChar = llvm::find_if(Prefix, [](char C) {
return !isAlphanumeric(C) && C != '-' && C != '_';
});
if (BadChar != Prefix.end() || !isLetter(Prefix[0])) {
Success = false;
if (Diags) {
Diags->Report(diag::err_drv_invalid_value) << "-verify=" << Prefix;
Diags->Report(diag::note_drv_verify_prefix_spelling);
}
}
}
return Success;
}
bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
DiagnosticsEngine *Diags,
bool DefaultDiagColor, bool DefaultShowOpt) {
bool Success = true;
Opts.DiagnosticLogFile = Args.getLastArgValue(OPT_diagnostic_log_file);
if (Arg *A =
Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags))
Opts.DiagnosticSerializationFile = A->getValue();
Opts.IgnoreWarnings = Args.hasArg(OPT_w);
Opts.NoRewriteMacros = Args.hasArg(OPT_Wno_rewrite_macros);
Opts.Pedantic = Args.hasArg(OPT_pedantic);
Opts.PedanticErrors = Args.hasArg(OPT_pedantic_errors);
Opts.ShowCarets = !Args.hasArg(OPT_fno_caret_diagnostics);
Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor);
Opts.ShowColumn = Args.hasFlag(OPT_fshow_column,
OPT_fno_show_column,
/*Default=*/true);
Opts.ShowFixits = !Args.hasArg(OPT_fno_diagnostics_fixit_info);
Opts.ShowLocation = !Args.hasArg(OPT_fno_show_source_location);
Opts.AbsolutePath = Args.hasArg(OPT_fdiagnostics_absolute_paths);
Opts.ShowOptionNames =
Args.hasFlag(OPT_fdiagnostics_show_option,
OPT_fno_diagnostics_show_option, DefaultShowOpt);
llvm::sys::Process::UseANSIEscapeCodes(Args.hasArg(OPT_fansi_escape_codes));
// Default behavior is to not to show note include stacks.
Opts.ShowNoteIncludeStack = false;
if (Arg *A = Args.getLastArg(OPT_fdiagnostics_show_note_include_stack,
OPT_fno_diagnostics_show_note_include_stack))
if (A->getOption().matches(OPT_fdiagnostics_show_note_include_stack))
Opts.ShowNoteIncludeStack = true;
StringRef ShowOverloads =
Args.getLastArgValue(OPT_fshow_overloads_EQ, "all");
if (ShowOverloads == "best")
Opts.setShowOverloads(Ovl_Best);
else if (ShowOverloads == "all")
Opts.setShowOverloads(Ovl_All);
else {
Success = false;
if (Diags)
Diags->Report(diag::err_drv_invalid_value)
<< Args.getLastArg(OPT_fshow_overloads_EQ)->getAsString(Args)
<< ShowOverloads;
}
StringRef ShowCategory =
Args.getLastArgValue(OPT_fdiagnostics_show_category, "none");
if (ShowCategory == "none")
Opts.ShowCategories = 0;
else if (ShowCategory == "id")
Opts.ShowCategories = 1;
else if (ShowCategory == "name")
Opts.ShowCategories = 2;
else {
Success = false;
if (Diags)
Diags->Report(diag::err_drv_invalid_value)
<< Args.getLastArg(OPT_fdiagnostics_show_category)->getAsString(Args)
<< ShowCategory;
}
StringRef Format =
Args.getLastArgValue(OPT_fdiagnostics_format, "clang");
if (Format == "clang")
Opts.setFormat(DiagnosticOptions::Clang);
else if (Format == "msvc")
Opts.setFormat(DiagnosticOptions::MSVC);
else if (Format == "msvc-fallback") {
Opts.setFormat(DiagnosticOptions::MSVC);
Opts.CLFallbackMode = true;
} else if (Format == "vi")
Opts.setFormat(DiagnosticOptions::Vi);
else {
Success = false;
if (Diags)
Diags->Report(diag::err_drv_invalid_value)
<< Args.getLastArg(OPT_fdiagnostics_format)->getAsString(Args)
<< Format;
}
Opts.ShowSourceRanges = Args.hasArg(OPT_fdiagnostics_print_source_range_info);
Opts.ShowParseableFixits = Args.hasArg(OPT_fdiagnostics_parseable_fixits);
Opts.ShowPresumedLoc = !Args.hasArg(OPT_fno_diagnostics_use_presumed_location);
Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(OPT_verify_EQ);
Opts.VerifyPrefixes = Args.getAllArgValues(OPT_verify_EQ);
if (Args.hasArg(OPT_verify))
Opts.VerifyPrefixes.push_back("expected");
// Keep VerifyPrefixes in its original order for the sake of diagnostics, and
// then sort it to prepare for fast lookup using std::binary_search.
if (!checkVerifyPrefixes(Opts.VerifyPrefixes, Diags)) {
Opts.VerifyDiagnostics = false;
Success = false;
}
else
llvm::sort(Opts.VerifyPrefixes);
DiagnosticLevelMask DiagMask = DiagnosticLevelMask::None;
Success &= parseDiagnosticLevelMask("-verify-ignore-unexpected=",
Args.getAllArgValues(OPT_verify_ignore_unexpected_EQ),
Diags, DiagMask);
if (Args.hasArg(OPT_verify_ignore_unexpected))
DiagMask = DiagnosticLevelMask::All;
Opts.setVerifyIgnoreUnexpected(DiagMask);
Opts.ElideType = !Args.hasArg(OPT_fno_elide_type);
Opts.ShowTemplateTree = Args.hasArg(OPT_fdiagnostics_show_template_tree);
Opts.ErrorLimit = getLastArgIntValue(Args, OPT_ferror_limit, 0, Diags);
Opts.MacroBacktraceLimit =
getLastArgIntValue(Args, OPT_fmacro_backtrace_limit,
DiagnosticOptions::DefaultMacroBacktraceLimit, Diags);
Opts.TemplateBacktraceLimit = getLastArgIntValue(
Args, OPT_ftemplate_backtrace_limit,
DiagnosticOptions::DefaultTemplateBacktraceLimit, Diags);
Opts.ConstexprBacktraceLimit = getLastArgIntValue(
Args, OPT_fconstexpr_backtrace_limit,
DiagnosticOptions::DefaultConstexprBacktraceLimit, Diags);
Opts.SpellCheckingLimit = getLastArgIntValue(
Args, OPT_fspell_checking_limit,
DiagnosticOptions::DefaultSpellCheckingLimit, Diags);
Opts.SnippetLineLimit = getLastArgIntValue(
Args, OPT_fcaret_diagnostics_max_lines,
DiagnosticOptions::DefaultSnippetLineLimit, Diags);
Opts.TabStop = getLastArgIntValue(Args, OPT_ftabstop,
DiagnosticOptions::DefaultTabStop, Diags);
if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
Opts.TabStop = DiagnosticOptions::DefaultTabStop;
if (Diags)
Diags->Report(diag::warn_ignoring_ftabstop_value)
<< Opts.TabStop << DiagnosticOptions::DefaultTabStop;
}
Opts.MessageLength = getLastArgIntValue(Args, OPT_fmessage_length, 0, Diags);
addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings);
addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks);
return Success;
}
static void ParseFileSystemArgs(FileSystemOptions &Opts, ArgList &Args) {
Opts.WorkingDir = Args.getLastArgValue(OPT_working_directory);
}
/// Parse the argument to the -ftest-module-file-extension
/// command-line argument.
///
/// \returns true on error, false on success.
static bool parseTestModuleFileExtensionArg(StringRef Arg,
std::string &BlockName,
unsigned &MajorVersion,
unsigned &MinorVersion,
bool &Hashed,
std::string &UserInfo) {
SmallVector<StringRef, 5> Args;
Arg.split(Args, ':', 5);
if (Args.size() < 5)
return true;
BlockName = Args[0];
if (Args[1].getAsInteger(10, MajorVersion)) return true;
if (Args[2].getAsInteger(10, MinorVersion)) return true;
if (Args[3].getAsInteger(2, Hashed)) return true;
if (Args.size() > 4)
UserInfo = Args[4];
return false;
}
static InputKind ParseFrontendArgs(FrontendOptions &Opts, ArgList &Args,
DiagnosticsEngine &Diags,
bool &IsHeaderFile) {
Opts.ProgramAction = frontend::ParseSyntaxOnly;
if (const Arg *A = Args.getLastArg(OPT_Action_Group)) {
switch (A->getOption().getID()) {
default:
llvm_unreachable("Invalid option in group!");
case OPT_ast_list:
Opts.ProgramAction = frontend::ASTDeclList; break;
case OPT_ast_dump_all_EQ:
case OPT_ast_dump_EQ: {
unsigned Val = llvm::StringSwitch<unsigned>(A->getValue())
.CaseLower("default", ADOF_Default)
.CaseLower("json", ADOF_JSON)
.Default(std::numeric_limits<unsigned>::max());
if (Val != std::numeric_limits<unsigned>::max())
Opts.ASTDumpFormat = static_cast<ASTDumpOutputFormat>(Val);
else {
Diags.Report(diag::err_drv_invalid_value)
<< A->getAsString(Args) << A->getValue();
Opts.ASTDumpFormat = ADOF_Default;
}
LLVM_FALLTHROUGH;
}
case OPT_ast_dump:
case OPT_ast_dump_all:
case OPT_ast_dump_lookups:
Opts.ProgramAction = frontend::ASTDump; break;
case OPT_ast_print:
Opts.ProgramAction = frontend::ASTPrint; break;
case OPT_ast_view:
Opts.ProgramAction = frontend::ASTView; break;
case OPT_compiler_options_dump:
Opts.ProgramAction = frontend::DumpCompilerOptions; break;
case OPT_dump_raw_tokens:
Opts.ProgramAction = frontend::DumpRawTokens; break;
case OPT_dump_tokens:
Opts.ProgramAction = frontend::DumpTokens; break;
case OPT_S:
Opts.ProgramAction = frontend::EmitAssembly; break;
case OPT_emit_llvm_bc:
Opts.ProgramAction = frontend::EmitBC; break;
case OPT_emit_html:
Opts.ProgramAction = frontend::EmitHTML; break;
case OPT_emit_llvm:
Opts.ProgramAction = frontend::EmitLLVM; break;
case OPT_emit_llvm_only:
Opts.ProgramAction = frontend::EmitLLVMOnly; break;
case OPT_emit_codegen_only:
Opts.ProgramAction = frontend::EmitCodeGenOnly; break;
case OPT_emit_obj:
Opts.ProgramAction = frontend::EmitObj; break;
case OPT_fixit_EQ:
Opts.FixItSuffix = A->getValue();
LLVM_FALLTHROUGH;
case OPT_fixit:
Opts.ProgramAction = frontend::FixIt; break;
case OPT_emit_module:
Opts.ProgramAction = frontend::GenerateModule; break;
case OPT_emit_module_interface:
Opts.ProgramAction = frontend::GenerateModuleInterface; break;
case OPT_emit_header_module:
Opts.ProgramAction = frontend::GenerateHeaderModule; break;
case OPT_emit_pch:
Opts.ProgramAction = frontend::GeneratePCH; break;
case OPT_emit_interface_stubs: {
StringRef ArgStr =
Args.hasArg(OPT_interface_stub_version_EQ)
? Args.getLastArgValue(OPT_interface_stub_version_EQ)
: "experimental-ifs-v1";
if (ArgStr == "experimental-yaml-elf-v1" ||
ArgStr == "experimental-tapi-elf-v1") {
std::string ErrorMessage =
"Invalid interface stub format: " + ArgStr.str() +
" is deprecated.";
Diags.Report(diag::err_drv_invalid_value)
<< "Must specify a valid interface stub format type, ie: "
"-interface-stub-version=experimental-ifs-v1"
<< ErrorMessage;
} else if (ArgStr != "experimental-ifs-v1") {
std::string ErrorMessage =
"Invalid interface stub format: " + ArgStr.str() + ".";
Diags.Report(diag::err_drv_invalid_value)
<< "Must specify a valid interface stub format type, ie: "
"-interface-stub-version=experimental-ifs-v1"
<< ErrorMessage;
} else {
Opts.ProgramAction = frontend::GenerateInterfaceIfsExpV1;
}
break;
}
case OPT_init_only:
Opts.ProgramAction = frontend::InitOnly; break;
case OPT_fsyntax_only:
Opts.ProgramAction = frontend::ParseSyntaxOnly; break;
case OPT_module_file_info:
Opts.ProgramAction = frontend::ModuleFileInfo; break;
case OPT_verify_pch:
Opts.ProgramAction = frontend::VerifyPCH; break;
case OPT_print_preamble:
Opts.ProgramAction = frontend::PrintPreamble; break;
case OPT_E:
Opts.ProgramAction = frontend::PrintPreprocessedInput; break;
case OPT_templight_dump:
Opts.ProgramAction = frontend::TemplightDump; break;
case OPT_rewrite_macros:
Opts.ProgramAction = frontend::RewriteMacros; break;
case OPT_rewrite_objc:
Opts.ProgramAction = frontend::RewriteObjC; break;
case OPT_rewrite_test:
Opts.ProgramAction = frontend::RewriteTest; break;
case OPT_analyze:
Opts.ProgramAction = frontend::RunAnalysis; break;
case OPT_migrate:
Opts.ProgramAction = frontend::MigrateSource; break;
case OPT_Eonly:
Opts.ProgramAction = frontend::RunPreprocessorOnly; break;
case OPT_print_dependency_directives_minimized_source:
Opts.ProgramAction =
frontend::PrintDependencyDirectivesSourceMinimizerOutput;
break;
}
}
if (const Arg* A = Args.getLastArg(OPT_plugin)) {
Opts.Plugins.emplace_back(A->getValue(0));
Opts.ProgramAction = frontend::PluginAction;
Opts.ActionName = A->getValue();
}
Opts.AddPluginActions = Args.getAllArgValues(OPT_add_plugin);
for (const auto *AA : Args.filtered(OPT_plugin_arg))
Opts.PluginArgs[AA->getValue(0)].emplace_back(AA->getValue(1));
for (const std::string &Arg :
Args.getAllArgValues(OPT_ftest_module_file_extension_EQ)) {
std::string BlockName;
unsigned MajorVersion;
unsigned MinorVersion;
bool Hashed;
std::string UserInfo;
if (parseTestModuleFileExtensionArg(Arg, BlockName, MajorVersion,
MinorVersion, Hashed, UserInfo)) {
Diags.Report(diag::err_test_module_file_extension_format) << Arg;
continue;
}
// Add the testing module file extension.
Opts.ModuleFileExtensions.push_back(
std::make_shared<TestModuleFileExtension>(
BlockName, MajorVersion, MinorVersion, Hashed, UserInfo));
}
if (const Arg *A = Args.getLastArg(OPT_code_completion_at)) {
Opts.CodeCompletionAt =
ParsedSourceLocation::FromString(A->getValue());
if (Opts.CodeCompletionAt.FileName.empty())
Diags.Report(diag::err_drv_invalid_value)
<< A->getAsString(Args) << A->getValue();
}
Opts.DisableFree = Args.hasArg(OPT_disable_free);
Opts.OutputFile = Args.getLastArgValue(OPT_o);
Opts.Plugins = Args.getAllArgValues(OPT_load);
Opts.RelocatablePCH = Args.hasArg(OPT_relocatable_pch);
Opts.ShowHelp = Args.hasArg(OPT_help);
Opts.ShowStats = Args.hasArg(OPT_print_stats);
Opts.ShowTimers = Args.hasArg(OPT_ftime_report);
Opts.PrintSupportedCPUs = Args.hasArg(OPT_print_supported_cpus);
Opts.TimeTrace = Args.hasArg(OPT_ftime_trace);
Opts.TimeTraceGranularity = getLastArgIntValue(
Args, OPT_ftime_trace_granularity_EQ, Opts.TimeTraceGranularity, Diags);
Opts.ShowVersion = Args.hasArg(OPT_version);
Opts.ASTMergeFiles = Args.getAllArgValues(OPT_ast_merge);
Opts.LLVMArgs = Args.getAllArgValues(OPT_mllvm);
Opts.FixWhatYouCan = Args.hasArg(OPT_fix_what_you_can);
Opts.FixOnlyWarnings = Args.hasArg(OPT_fix_only_warnings);
Opts.FixAndRecompile = Args.hasArg(OPT_fixit_recompile);
Opts.FixToTemporaries = Args.hasArg(OPT_fixit_to_temp);
Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ);
Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ);
Opts.ASTDumpFilter = Args.getLastArgValue(OPT_ast_dump_filter);
Opts.ASTDumpLookups = Args.hasArg(OPT_ast_dump_lookups);
Opts.UseGlobalModuleIndex = !Args.hasArg(OPT_fno_modules_global_index);
Opts.GenerateGlobalModuleIndex = Opts.UseGlobalModuleIndex;
Opts.ModuleMapFiles = Args.getAllArgValues(OPT_fmodule_map_file);
// Only the -fmodule-file=<file> form.
for (const auto *A : Args.filtered(OPT_fmodule_file)) {
StringRef Val = A->getValue();
if (Val.find('=') == StringRef::npos)
Opts.ModuleFiles.push_back(Val);
}
Opts.ModulesEmbedFiles = Args.getAllArgValues(OPT_fmodules_embed_file_EQ);
Opts.ModulesEmbedAllFiles = Args.hasArg(OPT_fmodules_embed_all_files);
Opts.IncludeTimestamps = !Args.hasArg(OPT_fno_pch_timestamp);
Opts.CodeCompleteOpts.IncludeMacros
= Args.hasArg(OPT_code_completion_macros);
Opts.CodeCompleteOpts.IncludeCodePatterns
= Args.hasArg(OPT_code_completion_patterns);
Opts.CodeCompleteOpts.IncludeGlobals
= !Args.hasArg(OPT_no_code_completion_globals);
Opts.CodeCompleteOpts.IncludeNamespaceLevelDecls
= !Args.hasArg(OPT_no_code_completion_ns_level_decls);
Opts.CodeCompleteOpts.IncludeBriefComments
= Args.hasArg(OPT_code_completion_brief_comments);
Opts.CodeCompleteOpts.IncludeFixIts
= Args.hasArg(OPT_code_completion_with_fixits);
Opts.OverrideRecordLayoutsFile
= Args.getLastArgValue(OPT_foverride_record_layout_EQ);
Opts.AuxTriple = Args.getLastArgValue(OPT_aux_triple);
Opts.StatsFile = Args.getLastArgValue(OPT_stats_file);
if (const Arg *A = Args.getLastArg(OPT_arcmt_check,
OPT_arcmt_modify,
OPT_arcmt_migrate)) {
switch (A->getOption().getID()) {
default:
llvm_unreachable("missed a case");
case OPT_arcmt_check:
Opts.ARCMTAction = FrontendOptions::ARCMT_Check;
break;
case OPT_arcmt_modify:
Opts.ARCMTAction = FrontendOptions::ARCMT_Modify;
break;
case OPT_arcmt_migrate:
Opts.ARCMTAction = FrontendOptions::ARCMT_Migrate;
break;
}
}
Opts.MTMigrateDir = Args.getLastArgValue(OPT_mt_migrate_directory);
Opts.ARCMTMigrateReportOut
= Args.getLastArgValue(OPT_arcmt_migrate_report_output);
Opts.ARCMTMigrateEmitARCErrors
= Args.hasArg(OPT_arcmt_migrate_emit_arc_errors);
if (Args.hasArg(OPT_objcmt_migrate_literals))
Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Literals;
if (Args.hasArg(OPT_objcmt_migrate_subscripting))
Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Subscripting;
if (Args.hasArg(OPT_objcmt_migrate_property_dot_syntax))
Opts.ObjCMTAction |= FrontendOptions::ObjCMT_PropertyDotSyntax;
if (Args.hasArg(OPT_objcmt_migrate_property))
Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Property;
if (Args.hasArg(OPT_objcmt_migrate_readonly_property))
Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadonlyProperty;
if (Args.hasArg(OPT_objcmt_migrate_readwrite_property))
Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReadwriteProperty;
if (Args.hasArg(OPT_objcmt_migrate_annotation))
Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Annotation;
if (Args.hasArg(OPT_objcmt_returns_innerpointer_property))
Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ReturnsInnerPointerProperty;
if (Args.hasArg(OPT_objcmt_migrate_instancetype))
Opts.ObjCMTAction |= FrontendOptions::ObjCMT_Instancetype;
if (Args.hasArg(OPT_objcmt_migrate_nsmacros))
Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsMacros;
if (Args.hasArg(OPT_objcmt_migrate_protocol_conformance))
Opts.ObjCMTAction |= FrontendOptions::ObjCMT_ProtocolConformance;
if (Args.hasArg(OPT_objcmt_atomic_property))
Opts.ObjCMTAction |= FrontendOptions::ObjCMT_AtomicProperty;
if (Args.hasArg(OPT_objcmt_ns_nonatomic_iosonly))
Opts.ObjCMTAction |= FrontendOptions::ObjCMT_NsAtomicIOSOnlyProperty;
if (Args.hasArg(OPT_objcmt_migrate_designated_init))
Opts.ObjCMTAction |= FrontendOptions::ObjCMT_DesignatedInitializer;
if (Args.hasArg(OPT_objcmt_migrate_all))
Opts.ObjCMTAction |= FrontendOptions::ObjCMT_MigrateDecls;
Opts.ObjCMTWhiteListPath = Args.getLastArgValue(OPT_objcmt_whitelist_dir_path);
if (Opts.ARCMTAction != FrontendOptions::ARCMT_None &&
Opts.ObjCMTAction != FrontendOptions::ObjCMT_None) {
Diags.Report(diag::err_drv_argument_not_allowed_with)
<< "ARC migration" << "ObjC migration";
}
InputKind DashX(Language::Unknown);
if (const Arg *A = Args.getLastArg(OPT_x)) {
StringRef XValue = A->getValue();
// Parse suffixes: '<lang>(-header|[-module-map][-cpp-output])'.
// FIXME: Supporting '<lang>-header-cpp-output' would be useful.
bool Preprocessed = XValue.consume_back("-cpp-output");
bool ModuleMap = XValue.consume_back("-module-map");
IsHeaderFile =
!Preprocessed && !ModuleMap && XValue.consume_back("-header");
// Principal languages.
DashX = llvm::StringSwitch<InputKind>(XValue)
.Case("c", Language::C)
.Case("cl", Language::OpenCL)
.Case("cuda", Language::CUDA)
.Case("hip", Language::HIP)
.Case("c++", Language::CXX)
.Case("objective-c", Language::ObjC)
.Case("objective-c++", Language::ObjCXX)
.Case("renderscript", Language::RenderScript)
.Default(Language::Unknown);
// "objc[++]-cpp-output" is an acceptable synonym for
// "objective-c[++]-cpp-output".
if (DashX.isUnknown() && Preprocessed && !IsHeaderFile && !ModuleMap)
DashX = llvm::StringSwitch<InputKind>(XValue)
.Case("objc", Language::ObjC)
.Case("objc++", Language::ObjCXX)
.Default(Language::Unknown);
// Some special cases cannot be combined with suffixes.
if (DashX.isUnknown() && !Preprocessed && !ModuleMap && !IsHeaderFile)
DashX = llvm::StringSwitch<InputKind>(XValue)
.Case("cpp-output", InputKind(Language::C).getPreprocessed())
.Case("assembler-with-cpp", Language::Asm)
.Cases("ast", "pcm",
InputKind(Language::Unknown, InputKind::Precompiled))
.Case("ir", Language::LLVM_IR)
.Default(Language::Unknown);
if (DashX.isUnknown())
Diags.Report(diag::err_drv_invalid_value)
<< A->getAsString(Args) << A->getValue();
if (Preprocessed)
DashX = DashX.getPreprocessed();
if (ModuleMap)
DashX = DashX.withFormat(InputKind::ModuleMap);
}
// '-' is the default input if none is given.
std::vector<std::string> Inputs = Args.getAllArgValues(OPT_INPUT);
Opts.Inputs.clear();
if (Inputs.empty())
Inputs.push_back("-");
for (unsigned i = 0, e = Inputs.size(); i != e; ++i) {
InputKind IK = DashX;
if (IK.isUnknown()) {
IK = FrontendOptions::getInputKindForExtension(
StringRef(Inputs[i]).rsplit('.').second);
// FIXME: Warn on this?
if (IK.isUnknown())
IK = Language::C;
// FIXME: Remove this hack.
if (i == 0)
DashX = IK;
}
// The -emit-module action implicitly takes a module map.
if (Opts.ProgramAction == frontend::GenerateModule &&
IK.getFormat() == InputKind::Source)
IK = IK.withFormat(InputKind::ModuleMap);
Opts.Inputs.emplace_back(std::move(Inputs[i]), IK);
}
return DashX;
}
std::string CompilerInvocation::GetResourcesPath(const char *Argv0,
void *MainAddr) {
std::string ClangExecutable =
llvm::sys::fs::getMainExecutable(Argv0, MainAddr);
return Driver::GetResourcesPath(ClangExecutable, CLANG_RESOURCE_DIR);
}
static void ParseHeaderSearchArgs(HeaderSearchOptions &Opts, ArgList &Args,
const std::string &WorkingDir) {
Opts.Sysroot = Args.getLastArgValue(OPT_isysroot, "/");
Opts.Verbose = Args.hasArg(OPT_v);
Opts.UseBuiltinIncludes = !Args.hasArg(OPT_nobuiltininc);
Opts.UseStandardSystemIncludes = !Args.hasArg(OPT_nostdsysteminc);
Opts.UseStandardCXXIncludes = !Args.hasArg(OPT_nostdincxx);
if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ))
Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0);
Opts.ResourceDir = Args.getLastArgValue(OPT_resource_dir);
// Canonicalize -fmodules-cache-path before storing it.
SmallString<128> P(Args.getLastArgValue(OPT_fmodules_cache_path));
if (!(P.empty() || llvm::sys::path::is_absolute(P))) {
if (WorkingDir.empty())
llvm::sys::fs::make_absolute(P);
else
llvm::sys::fs::make_absolute(WorkingDir, P);
}
llvm::sys::path::remove_dots(P);
Opts.ModuleCachePath = P.str();
Opts.ModuleUserBuildPath = Args.getLastArgValue(OPT_fmodules_user_build_path);
// Only the -fmodule-file=<name>=<file> form.
for (const auto *A : Args.filtered(OPT_fmodule_file)) {
StringRef Val = A->getValue();
if (Val.find('=') != StringRef::npos)
Opts.PrebuiltModuleFiles.insert(Val.split('='));
}
for (const auto *A : Args.filtered(OPT_fprebuilt_module_path))
Opts.AddPrebuiltModulePath(A->getValue());
Opts.DisableModuleHash = Args.hasArg(OPT_fdisable_module_hash);
Opts.ModulesHashContent = Args.hasArg(OPT_fmodules_hash_content);
Opts.ModulesStrictContextHash = Args.hasArg(OPT_fmodules_strict_context_hash);
Opts.ModulesValidateDiagnosticOptions =
!Args.hasArg(OPT_fmodules_disable_diagnostic_validation);
Opts.ImplicitModuleMaps = Args.hasArg(OPT_fimplicit_module_maps);
Opts.ModuleMapFileHomeIsCwd = Args.hasArg(OPT_fmodule_map_file_home_is_cwd);
Opts.ModuleCachePruneInterval =
getLastArgIntValue(Args, OPT_fmodules_prune_interval, 7 * 24 * 60 * 60);
Opts.ModuleCachePruneAfter =
getLastArgIntValue(Args, OPT_fmodules_prune_after, 31 * 24 * 60 * 60);
Opts.ModulesValidateOncePerBuildSession =
Args.hasArg(OPT_fmodules_validate_once_per_build_session);
Opts.BuildSessionTimestamp =
getLastArgUInt64Value(Args, OPT_fbuild_session_timestamp, 0);
Opts.ModulesValidateSystemHeaders =
Args.hasArg(OPT_fmodules_validate_system_headers);
Opts.ValidateASTInputFilesContent =
Args.hasArg(OPT_fvalidate_ast_input_files_content);
if (const Arg *A = Args.getLastArg(OPT_fmodule_format_EQ))
Opts.ModuleFormat = A->getValue();
for (const auto *A : Args.filtered(OPT_fmodules_ignore_macro)) {
StringRef MacroDef = A->getValue();
Opts.ModulesIgnoreMacros.insert(
llvm::CachedHashString(MacroDef.split('=').first));
}
// Add -I..., -F..., and -index-header-map options in order.
bool IsIndexHeaderMap = false;
bool IsSysrootSpecified =
Args.hasArg(OPT__sysroot_EQ) || Args.hasArg(OPT_isysroot);
for (const auto *A : Args.filtered(OPT_I, OPT_F, OPT_index_header_map)) {
if (A->getOption().matches(OPT_index_header_map)) {
// -index-header-map applies to the next -I or -F.
IsIndexHeaderMap = true;
continue;
}
frontend::IncludeDirGroup Group =
IsIndexHeaderMap ? frontend::IndexHeaderMap : frontend::Angled;
bool IsFramework = A->getOption().matches(OPT_F);
std::string Path = A->getValue();
if (IsSysrootSpecified && !IsFramework && A->getValue()[0] == '=') {
SmallString<32> Buffer;
llvm::sys::path::append(Buffer, Opts.Sysroot,
llvm::StringRef(A->getValue()).substr(1));
Path = Buffer.str();
}
Opts.AddPath(Path, Group, IsFramework,
/*IgnoreSysroot*/ true);
IsIndexHeaderMap = false;
}
// Add -iprefix/-iwithprefix/-iwithprefixbefore options.
StringRef Prefix = ""; // FIXME: This isn't the correct default prefix.
for (const auto *A :
Args.filtered(OPT_iprefix, OPT_iwithprefix, OPT_iwithprefixbefore)) {
if (A->getOption().matches(OPT_iprefix))
Prefix = A->getValue();
else if (A->getOption().matches(OPT_iwithprefix))
Opts.AddPath(Prefix.str() + A->getValue(), frontend::After, false, true);
else
Opts.AddPath(Prefix.str() + A->getValue(), frontend::Angled, false, true);
}
for (const auto *A : Args.filtered(OPT_idirafter))
Opts.AddPath(A->getValue(), frontend::After, false, true);
for (const auto *A : Args.filtered(OPT_iquote))
Opts.AddPath(A->getValue(), frontend::Quoted, false, true);
for (const auto *A : Args.filtered(OPT_isystem, OPT_iwithsysroot))
Opts.AddPath(A->getValue(), frontend::System, false,
!A->getOption().matches(OPT_iwithsysroot));
for (const auto *A : Args.filtered(OPT_iframework))
Opts.AddPath(A->getValue(), frontend::System, true, true);
for (const auto *A : Args.filtered(OPT_iframeworkwithsysroot))
Opts.AddPath(A->getValue(), frontend::System, /*IsFramework=*/true,
/*IgnoreSysRoot=*/false);
// Add the paths for the various language specific isystem flags.
for (const auto *A : Args.filtered(OPT_c_isystem))
Opts.AddPath(A->getValue(), frontend::CSystem, false, true);
for (const auto *A : Args.filtered(OPT_cxx_isystem))
Opts.AddPath(A->getValue(), frontend::CXXSystem, false, true);
for (const auto *A : Args.filtered(OPT_objc_isystem))
Opts.AddPath(A->getValue(), frontend::ObjCSystem, false,true);
for (const auto *A : Args.filtered(OPT_objcxx_isystem))
Opts.AddPath(A->getValue(), frontend::ObjCXXSystem, false, true);
// Add the internal paths from a driver that detects standard include paths.
for (const auto *A :
Args.filtered(OPT_internal_isystem, OPT_internal_externc_isystem)) {
frontend::IncludeDirGroup Group = frontend::System;
if (A->getOption().matches(OPT_internal_externc_isystem))
Group = frontend::ExternCSystem;
Opts.AddPath(A->getValue(), Group, false, true);
}
// Add the path prefixes which are implicitly treated as being system headers.
for (const auto *A :
Args.filtered(OPT_system_header_prefix, OPT_no_system_header_prefix))
Opts.AddSystemHeaderPrefix(
A->getValue(), A->getOption().matches(OPT_system_header_prefix));
for (const auto *A : Args.filtered(OPT_ivfsoverlay))
Opts.AddVFSOverlayFile(A->getValue());
}
void CompilerInvocation::setLangDefaults(LangOptions &Opts, InputKind IK,
const llvm::Triple &T,
PreprocessorOptions &PPOpts,
LangStandard::Kind LangStd) {
// Set some properties which depend solely on the input kind; it would be nice
// to move these to the language standard, and have the driver resolve the
// input kind + language standard.
//
// FIXME: Perhaps a better model would be for a single source file to have
// multiple language standards (C / C++ std, ObjC std, OpenCL std, OpenMP std)
// simultaneously active?
if (IK.getLanguage() == Language::Asm) {
Opts.AsmPreprocessor = 1;
} else if (IK.isObjectiveC()) {
Opts.ObjC = 1;
}
if (LangStd == LangStandard::lang_unspecified) {
// Based on the base language, pick one.
switch (IK.getLanguage()) {
case Language::Unknown:
case Language::LLVM_IR:
llvm_unreachable("Invalid input kind!");
case Language::OpenCL:
LangStd = LangStandard::lang_opencl10;
break;
case Language::CUDA:
LangStd = LangStandard::lang_cuda;
break;
case Language::Asm:
case Language::C:
#if defined(CLANG_DEFAULT_STD_C)
LangStd = CLANG_DEFAULT_STD_C;
#else
// The PS4 uses C99 as the default C standard.
if (T.isPS4())
LangStd = LangStandard::lang_gnu99;
else
LangStd = LangStandard::lang_gnu11;
#endif
break;
case Language::ObjC:
#if defined(CLANG_DEFAULT_STD_C)
LangStd = CLANG_DEFAULT_STD_C;
#else
LangStd = LangStandard::lang_gnu11;
#endif
break;
case Language::CXX:
case Language::ObjCXX:
#if defined(CLANG_DEFAULT_STD_CXX)
LangStd = CLANG_DEFAULT_STD_CXX;
#else
LangStd = LangStandard::lang_gnucxx14;
#endif
break;
case Language::RenderScript:
LangStd = LangStandard::lang_c99;
break;
case Language::HIP:
LangStd = LangStandard::lang_hip;
break;
}
}
const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
Opts.LineComment = Std.hasLineComments();
Opts.C99 = Std.isC99();
Opts.C11 = Std.isC11();
Opts.C17 = Std.isC17();
Opts.C2x = Std.isC2x();
Opts.CPlusPlus = Std.isCPlusPlus();
Opts.CPlusPlus11 = Std.isCPlusPlus11();
Opts.CPlusPlus14 = Std.isCPlusPlus14();
Opts.CPlusPlus17 = Std.isCPlusPlus17();
Opts.CPlusPlus2a = Std.isCPlusPlus2a();
Opts.Digraphs = Std.hasDigraphs();
Opts.GNUMode = Std.isGNUMode();
Opts.GNUInline = !Opts.C99 && !Opts.CPlusPlus;
Opts.GNUCVersion = 0;
Opts.HexFloats = Std.hasHexFloats();
Opts.ImplicitInt = Std.hasImplicitInt();
// Set OpenCL Version.
Opts.OpenCL = Std.isOpenCL();
if (LangStd == LangStandard::lang_opencl10)
Opts.OpenCLVersion = 100;
else if (LangStd == LangStandard::lang_opencl11)
Opts.OpenCLVersion = 110;
else if (LangStd == LangStandard::lang_opencl12)
Opts.OpenCLVersion = 120;
else if (LangStd == LangStandard::lang_opencl20)
Opts.OpenCLVersion = 200;
else if (LangStd == LangStandard::lang_openclcpp)
Opts.OpenCLCPlusPlusVersion = 100;
// OpenCL has some additional defaults.
if (Opts.OpenCL) {
Opts.AltiVec = 0;
Opts.ZVector = 0;
Opts.setLaxVectorConversions(LangOptions::LaxVectorConversionKind::None);
Opts.setDefaultFPContractMode(LangOptions::FPC_On);
Opts.NativeHalfType = 1;
Opts.NativeHalfArgsAndReturns = 1;
Opts.OpenCLCPlusPlus = Opts.CPlusPlus;
// Include default header file for OpenCL.
if (Opts.IncludeDefaultHeader) {
if (Opts.DeclareOpenCLBuiltins) {
// Only include base header file for builtin types and constants.
PPOpts.Includes.push_back("opencl-c-base.h");
} else {
PPOpts.Includes.push_back("opencl-c.h");
}
}
}
Opts.HIP = IK.getLanguage() == Language::HIP;
Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP;
if (Opts.CUDA)
// Set default FP_CONTRACT to FAST.
Opts.setDefaultFPContractMode(LangOptions::FPC_Fast);
Opts.RenderScript = IK.getLanguage() == Language::RenderScript;
if (Opts.RenderScript) {
Opts.NativeHalfType = 1;
Opts.NativeHalfArgsAndReturns = 1;
}
// OpenCL and C++ both have bool, true, false keywords.
Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
// OpenCL has half keyword
Opts.Half = Opts.OpenCL;
// C++ has wchar_t keyword.
Opts.WChar = Opts.CPlusPlus;
Opts.GNUKeywords = Opts.GNUMode;
Opts.CXXOperatorNames = Opts.CPlusPlus;
Opts.AlignedAllocation = Opts.CPlusPlus17;
Opts.DollarIdents = !Opts.AsmPreprocessor;
// Enable [[]] attributes in C++11 and C2x by default.
Opts.DoubleSquareBracketAttributes = Opts.CPlusPlus11 || Opts.C2x;
}
/// Attempt to parse a visibility value out of the given argument.
static Visibility parseVisibility(Arg *arg, ArgList &args,
DiagnosticsEngine &diags) {
StringRef value = arg->getValue();
if (value == "default") {
return DefaultVisibility;
} else if (value == "hidden" || value == "internal") {
return HiddenVisibility;
} else if (value == "protected") {
// FIXME: diagnose if target does not support protected visibility
return ProtectedVisibility;
}
diags.Report(diag::err_drv_invalid_value)
<< arg->getAsString(args) << value;
return DefaultVisibility;
}
/// Check if input file kind and language standard are compatible.
static bool IsInputCompatibleWithStandard(InputKind IK,
const LangStandard &S) {
switch (IK.getLanguage()) {
case Language::Unknown:
case Language::LLVM_IR:
llvm_unreachable("should not parse language flags for this input");
case Language::C:
case Language::ObjC:
case Language::RenderScript:
return S.getLanguage() == Language::C;
case Language::OpenCL:
return S.getLanguage() == Language::OpenCL;
case Language::CXX:
case Language::ObjCXX:
return S.getLanguage() == Language::CXX;
case Language::CUDA:
// FIXME: What -std= values should be permitted for CUDA compilations?
return S.getLanguage() == Language::CUDA ||
S.getLanguage() == Language::CXX;
case Language::HIP:
return S.getLanguage() == Language::CXX || S.getLanguage() == Language::HIP;
case Language::Asm:
// Accept (and ignore) all -std= values.
// FIXME: The -std= value is not ignored; it affects the tokenization
// and preprocessing rules if we're preprocessing this asm input.
return true;
}
llvm_unreachable("unexpected input language");
}
/// Get language name for given input kind.
static const StringRef GetInputKindName(InputKind IK) {
switch (IK.getLanguage()) {
case Language::C:
return "C";
case Language::ObjC:
return "Objective-C";
case Language::CXX:
return "C++";
case Language::ObjCXX:
return "Objective-C++";
case Language::OpenCL:
return "OpenCL";
case Language::CUDA:
return "CUDA";
case Language::RenderScript:
return "RenderScript";
case Language::HIP:
return "HIP";
case Language::Asm:
return "Asm";
case Language::LLVM_IR:
return "LLVM IR";
case Language::Unknown:
break;
}
llvm_unreachable("unknown input language");
}
static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK,
const TargetOptions &TargetOpts,
PreprocessorOptions &PPOpts,
DiagnosticsEngine &Diags) {
// FIXME: Cleanup per-file based stuff.
LangStandard::Kind LangStd = LangStandard::lang_unspecified;
if (const Arg *A = Args.getLastArg(OPT_std_EQ)) {
LangStd = LangStandard::getLangKind(A->getValue());
if (LangStd == LangStandard::lang_unspecified) {
Diags.Report(diag::err_drv_invalid_value)
<< A->getAsString(Args) << A->getValue();
// Report supported standards with short description.
for (unsigned KindValue = 0;
KindValue != LangStandard::lang_unspecified;
++KindValue) {
const LangStandard &Std = LangStandard::getLangStandardForKind(