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llvm-for-llvmta/tools/clang/lib/Frontend/CompilerInvocation.cpp

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added clang
2022-04-25 13:02:35 +02:00
//===- 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/DiagnosticDriver.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/ASTBitCodes.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/FloatingPointMode.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/Config/llvm-config.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/Remarks/HotnessThresholdParser.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 <type_traits>
#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;
//===----------------------------------------------------------------------===//
// Normalizers
//===----------------------------------------------------------------------===//
#define SIMPLE_ENUM_VALUE_TABLE
#include "clang/Driver/Options.inc"
#undef SIMPLE_ENUM_VALUE_TABLE
static llvm::Optional<bool>
normalizeSimpleFlag(OptSpecifier Opt, unsigned TableIndex, const ArgList &Args,
DiagnosticsEngine &Diags, bool &Success) {
if (Args.hasArg(Opt))
return true;
return None;
}
static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned,
const ArgList &Args,
DiagnosticsEngine &,
bool &Success) {
if (Args.hasArg(Opt))
return false;
return None;
}
/// The tblgen-erated code passes in a fifth parameter of an arbitrary type, but
/// denormalizeSimpleFlags never looks at it. Avoid bloating compile-time with
/// unnecessary template instantiations and just ignore it with a variadic
/// argument.
static void denormalizeSimpleFlag(SmallVectorImpl<const char *> &Args,
const char *Spelling,
CompilerInvocation::StringAllocator,
Option::OptionClass, unsigned, /*T*/...) {
Args.push_back(Spelling);
}
template <typename T> static constexpr bool is_uint64_t_convertible() {
return !std::is_same<T, uint64_t>::value &&
llvm::is_integral_or_enum<T>::value;
}
template <typename T,
std::enable_if_t<!is_uint64_t_convertible<T>(), bool> = false>
static auto makeFlagToValueNormalizer(T Value) {
return [Value](OptSpecifier Opt, unsigned, const ArgList &Args,
DiagnosticsEngine &, bool &Success) -> Optional<T> {
if (Args.hasArg(Opt))
return Value;
return None;
};
}
template <typename T,
std::enable_if_t<is_uint64_t_convertible<T>(), bool> = false>
static auto makeFlagToValueNormalizer(T Value) {
return makeFlagToValueNormalizer(uint64_t(Value));
}
static auto makeBooleanOptionNormalizer(bool Value, bool OtherValue,
OptSpecifier OtherOpt) {
return [Value, OtherValue, OtherOpt](OptSpecifier Opt, unsigned,
const ArgList &Args, DiagnosticsEngine &,
bool &Success) -> Optional<bool> {
if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) {
return A->getOption().matches(Opt) ? Value : OtherValue;
}
return None;
};
}
static auto makeBooleanOptionDenormalizer(bool Value) {
return [Value](SmallVectorImpl<const char *> &Args, const char *Spelling,
CompilerInvocation::StringAllocator, Option::OptionClass,
unsigned, bool KeyPath) {
if (KeyPath == Value)
Args.push_back(Spelling);
};
}
static void denormalizeStringImpl(SmallVectorImpl<const char *> &Args,
const char *Spelling,
CompilerInvocation::StringAllocator SA,
Option::OptionClass OptClass, unsigned,
Twine Value) {
switch (OptClass) {
case Option::SeparateClass:
case Option::JoinedOrSeparateClass:
Args.push_back(Spelling);
Args.push_back(SA(Value));
break;
case Option::JoinedClass:
Args.push_back(SA(Twine(Spelling) + Value));
break;
default:
llvm_unreachable("Cannot denormalize an option with option class "
"incompatible with string denormalization.");
}
}
template <typename T>
static void
denormalizeString(SmallVectorImpl<const char *> &Args, const char *Spelling,
CompilerInvocation::StringAllocator SA,
Option::OptionClass OptClass, unsigned TableIndex, T Value) {
denormalizeStringImpl(Args, Spelling, SA, OptClass, TableIndex, Twine(Value));
}
static Optional<SimpleEnumValue>
findValueTableByName(const SimpleEnumValueTable &Table, StringRef Name) {
for (int I = 0, E = Table.Size; I != E; ++I)
if (Name == Table.Table[I].Name)
return Table.Table[I];
return None;
}
static Optional<SimpleEnumValue>
findValueTableByValue(const SimpleEnumValueTable &Table, unsigned Value) {
for (int I = 0, E = Table.Size; I != E; ++I)
if (Value == Table.Table[I].Value)
return Table.Table[I];
return None;
}
static llvm::Optional<unsigned>
normalizeSimpleEnum(OptSpecifier Opt, unsigned TableIndex, const ArgList &Args,
DiagnosticsEngine &Diags, bool &Success) {
assert(TableIndex < SimpleEnumValueTablesSize);
const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex];
auto *Arg = Args.getLastArg(Opt);
if (!Arg)
return None;
StringRef ArgValue = Arg->getValue();
if (auto MaybeEnumVal = findValueTableByName(Table, ArgValue))
return MaybeEnumVal->Value;
Success = false;
Diags.Report(diag::err_drv_invalid_value)
<< Arg->getAsString(Args) << ArgValue;
return None;
}
static void denormalizeSimpleEnumImpl(SmallVectorImpl<const char *> &Args,
const char *Spelling,
CompilerInvocation::StringAllocator SA,
Option::OptionClass OptClass,
unsigned TableIndex, unsigned Value) {
assert(TableIndex < SimpleEnumValueTablesSize);
const SimpleEnumValueTable &Table = SimpleEnumValueTables[TableIndex];
if (auto MaybeEnumVal = findValueTableByValue(Table, Value)) {
denormalizeString(Args, Spelling, SA, OptClass, TableIndex,
MaybeEnumVal->Name);
} else {
llvm_unreachable("The simple enum value was not correctly defined in "
"the tablegen option description");
}
}
template <typename T>
static void denormalizeSimpleEnum(SmallVectorImpl<const char *> &Args,
const char *Spelling,
CompilerInvocation::StringAllocator SA,
Option::OptionClass OptClass,
unsigned TableIndex, T Value) {
return denormalizeSimpleEnumImpl(Args, Spelling, SA, OptClass, TableIndex,
static_cast<unsigned>(Value));
}
static Optional<std::string> normalizeString(OptSpecifier Opt, int TableIndex,
const ArgList &Args,
DiagnosticsEngine &Diags,
bool &Success) {
auto *Arg = Args.getLastArg(Opt);
if (!Arg)
return None;
return std::string(Arg->getValue());
}
template <typename IntTy>
static Optional<IntTy>
normalizeStringIntegral(OptSpecifier Opt, int, const ArgList &Args,
DiagnosticsEngine &Diags, bool &Success) {
auto *Arg = Args.getLastArg(Opt);
if (!Arg)
return None;
IntTy Res;
if (StringRef(Arg->getValue()).getAsInteger(0, Res)) {
Success = false;
Diags.Report(diag::err_drv_invalid_int_value)
<< Arg->getAsString(Args) << Arg->getValue();
return None;
}
return Res;
}
static Optional<std::vector<std::string>>
normalizeStringVector(OptSpecifier Opt, int, const ArgList &Args,
DiagnosticsEngine &, bool &Success) {
return Args.getAllArgValues(Opt);
}
static void denormalizeStringVector(SmallVectorImpl<const char *> &Args,
const char *Spelling,
CompilerInvocation::StringAllocator SA,
Option::OptionClass OptClass,
unsigned TableIndex,
const std::vector<std::string> &Values) {
switch (OptClass) {
case Option::CommaJoinedClass: {
std::string CommaJoinedValue;
if (!Values.empty()) {
CommaJoinedValue.append(Values.front());
for (const std::string &Value : llvm::drop_begin(Values, 1)) {
CommaJoinedValue.append(",");
CommaJoinedValue.append(Value);
}
}
denormalizeString(Args, Spelling, SA, Option::OptionClass::JoinedClass,
TableIndex, CommaJoinedValue);
break;
}
case Option::JoinedClass:
case Option::SeparateClass:
case Option::JoinedOrSeparateClass:
for (const std::string &Value : Values)
denormalizeString(Args, Spelling, SA, OptClass, TableIndex, Value);
break;
default:
llvm_unreachable("Cannot denormalize an option with option class "
"incompatible with string vector denormalization.");
}
}
static Optional<std::string> normalizeTriple(OptSpecifier Opt, int TableIndex,
const ArgList &Args,
DiagnosticsEngine &Diags,
bool &Success) {
auto *Arg = Args.getLastArg(Opt);
if (!Arg)
return None;
return llvm::Triple::normalize(Arg->getValue());
}
template <typename T, typename U>
static T mergeForwardValue(T KeyPath, U Value) {
return static_cast<T>(Value);
}
template <typename T, typename U> static T mergeMaskValue(T KeyPath, U Value) {
return KeyPath | Value;
}
template <typename T> static T extractForwardValue(T KeyPath) {
return KeyPath;
}
template <typename T, typename U, U Value>
static T extractMaskValue(T KeyPath) {
return KeyPath & Value;
}
#define PARSE_OPTION_WITH_MARSHALLING(ARGS, DIAGS, SUCCESS, ID, FLAGS, PARAM, \
SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \
IMPLIED_CHECK, IMPLIED_VALUE, \
NORMALIZER, MERGER, TABLE_INDEX) \
if ((FLAGS)&options::CC1Option) { \
KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE); \
if (IMPLIED_CHECK) \
KEYPATH = MERGER(KEYPATH, IMPLIED_VALUE); \
if (SHOULD_PARSE) \
if (auto MaybeValue = \
NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS, SUCCESS)) \
KEYPATH = \
MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue)); \
}
static const StringRef GetInputKindName(InputKind IK);
static void FixupInvocation(CompilerInvocation &Invocation,
DiagnosticsEngine &Diags, const InputArgList &Args,
InputKind IK) {
LangOptions &LangOpts = *Invocation.getLangOpts();
CodeGenOptions &CodeGenOpts = Invocation.getCodeGenOpts();
TargetOptions &TargetOpts = Invocation.getTargetOpts();
FrontendOptions &FrontendOpts = Invocation.getFrontendOpts();
CodeGenOpts.XRayInstrumentFunctions = LangOpts.XRayInstrument;
CodeGenOpts.XRayAlwaysEmitCustomEvents = LangOpts.XRayAlwaysEmitCustomEvents;
CodeGenOpts.XRayAlwaysEmitTypedEvents = LangOpts.XRayAlwaysEmitTypedEvents;
CodeGenOpts.DisableFree = FrontendOpts.DisableFree;
FrontendOpts.GenerateGlobalModuleIndex = FrontendOpts.UseGlobalModuleIndex;
LangOpts.ForceEmitVTables = CodeGenOpts.ForceEmitVTables;
LangOpts.SpeculativeLoadHardening = CodeGenOpts.SpeculativeLoadHardening;
LangOpts.CurrentModule = LangOpts.ModuleName;
llvm::Triple T(TargetOpts.Triple);
llvm::Triple::ArchType Arch = T.getArch();
CodeGenOpts.CodeModel = TargetOpts.CodeModel;
if (LangOpts.getExceptionHandling() != llvm::ExceptionHandling::None &&
T.isWindowsMSVCEnvironment())
Diags.Report(diag::err_fe_invalid_exception_model)
<< static_cast<unsigned>(LangOpts.getExceptionHandling()) << T.str();
if (LangOpts.AppleKext && !LangOpts.CPlusPlus)
Diags.Report(diag::warn_c_kext);
if (LangOpts.NewAlignOverride &&
!llvm::isPowerOf2_32(LangOpts.NewAlignOverride)) {
Arg *A = Args.getLastArg(OPT_fnew_alignment_EQ);
Diags.Report(diag::err_fe_invalid_alignment)
<< A->getAsString(Args) << A->getValue();
LangOpts.NewAlignOverride = 0;
}
if (Args.hasArg(OPT_fgnu89_inline) && LangOpts.CPlusPlus)
Diags.Report(diag::err_drv_argument_not_allowed_with)
<< "-fgnu89-inline" << GetInputKindName(IK);
if (Args.hasArg(OPT_fgpu_allow_device_init) && !LangOpts.HIP)
Diags.Report(diag::warn_ignored_hip_only_option)
<< Args.getLastArg(OPT_fgpu_allow_device_init)->getAsString(Args);
if (Args.hasArg(OPT_gpu_max_threads_per_block_EQ) && !LangOpts.HIP)
Diags.Report(diag::warn_ignored_hip_only_option)
<< Args.getLastArg(OPT_gpu_max_threads_per_block_EQ)->getAsString(Args);
// -cl-strict-aliasing needs to emit diagnostic in the case where CL > 1.0.
// This option should be deprecated for CL > 1.0 because
// this option was added for compatibility with OpenCL 1.0.
if (Args.getLastArg(OPT_cl_strict_aliasing) && LangOpts.OpenCLVersion > 100)
Diags.Report(diag::warn_option_invalid_ocl_version)
<< LangOpts.getOpenCLVersionTuple().getAsString()
<< Args.getLastArg(OPT_cl_strict_aliasing)->getAsString(Args);
if (Arg *A = Args.getLastArg(OPT_fdefault_calling_conv_EQ)) {
auto DefaultCC = LangOpts.getDefaultCallingConv();
bool emitError = (DefaultCC == LangOptions::DCC_FastCall ||
DefaultCC == LangOptions::DCC_StdCall) &&
Arch != llvm::Triple::x86;
emitError |= (DefaultCC == LangOptions::DCC_VectorCall ||
DefaultCC == LangOptions::DCC_RegCall) &&
!T.isX86();
if (emitError)
Diags.Report(diag::err_drv_argument_not_allowed_with)
<< A->getSpelling() << T.getTriple();
}
if (!CodeGenOpts.ProfileRemappingFile.empty() && CodeGenOpts.LegacyPassManager)
Diags.Report(diag::err_drv_argument_only_allowed_with)
<< Args.getLastArg(OPT_fprofile_remapping_file_EQ)->getAsString(Args)
<< "-fno-legacy-pass-manager";
}
//===----------------------------------------------------------------------===//
// 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")
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 std::string GetOptName(llvm::opt::OptSpecifier OptSpecifier) {
static const OptTable &OptTable = getDriverOptTable();
return OptTable.getOption(OptSpecifier).getPrefixedName();
}
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(
std::string(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(
std::string(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.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(std::string(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] = std::string(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, std::string(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";
}
/// 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;
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 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);
}
bool CompilerInvocation::ParseCodeGenArgs(CodeGenOptions &Opts, ArgList &Args,
InputKind IK,
DiagnosticsEngine &Diags,
const llvm::Triple &T,
const std::string &OutputFile,
const LangOptions &LangOptsRef) {
bool Success = true;
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;
// The key paths of codegen options defined in Options.td start with
// "CodeGenOpts.". Let's provide the expected variable name and type.
CodeGenOptions &CodeGenOpts = Opts;
// Some codegen options depend on language options. Let's provide the expected
// variable name and type.
const LangOptions *LangOpts = &LangOptsRef;
#define CODEGEN_OPTION_WITH_MARSHALLING( \
PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
MERGER, EXTRACTOR, TABLE_INDEX) \
PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \
SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \
IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \
MERGER, TABLE_INDEX)
#include "clang/Driver/Options.inc"
#undef CODEGEN_OPTION_WITH_MARSHALLING
// 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);
}
}
// PIC defaults to -fno-direct-access-external-data while non-PIC defaults to
// -fdirect-access-external-data.
Opts.DirectAccessExternalData =
Args.hasArg(OPT_fdirect_access_external_data) ||
(!Args.hasArg(OPT_fno_direct_access_external_data) &&
getLastArgIntValue(Args, OPT_pic_level, 0, Diags) == 0);
// If -fuse-ctor-homing is set and limited debug info is already on, then use
// constructor homing.
if (Args.getLastArg(OPT_fuse_ctor_homing))
if (Opts.getDebugInfo() == codegenoptions::LimitedDebugInfo)
Opts.setDebugInfo(codegenoptions::DebugInfoConstructor);
for (const auto &Arg : Args.getAllArgValues(OPT_fdebug_prefix_map_EQ)) {
auto Split = StringRef(Arg).split('=');
Opts.DebugPrefixMap.insert(
{std::string(Split.first), std::string(Split.second)});
}
for (const auto &Arg : Args.getAllArgValues(OPT_fprofile_prefix_map_EQ)) {
auto Split = StringRef(Arg).split('=');
Opts.ProfilePrefixMap.insert(
{std::string(Split.first), std::string(Split.second)});
}
const llvm::Triple::ArchType DebugEntryValueArchs[] = {
llvm::Triple::x86, llvm::Triple::x86_64, llvm::Triple::aarch64,
llvm::Triple::arm, llvm::Triple::armeb, llvm::Triple::mips,
llvm::Triple::mipsel, llvm::Triple::mips64, llvm::Triple::mips64el};
if (Opts.OptimizationLevel > 0 && Opts.hasReducedDebugInfo() &&
llvm::is_contained(DebugEntryValueArchs, T.getArch()))
Opts.EmitCallSiteInfo = true;
Opts.NewStructPathTBAA = !Args.hasArg(OPT_no_struct_path_tbaa) &&
Args.hasArg(OPT_new_struct_path_tbaa);
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.BinutilsVersion =
std::string(Args.getLastArgValue(OPT_fbinutils_version_EQ));
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);
if (!Opts.ProfileInstrumentUsePath.empty())
setPGOUseInstrumentor(Opts, Opts.ProfileInstrumentUsePath);
if (const Arg *A = Args.getLastArg(OPT_ftime_report, OPT_ftime_report_EQ)) {
Opts.TimePasses = true;
// -ftime-report= is only for new pass manager.
if (A->getOption().getID() == OPT_ftime_report_EQ) {
if (Opts.LegacyPassManager)
Diags.Report(diag::err_drv_argument_only_allowed_with)
<< A->getAsString(Args) << "-fno-legacy-pass-manager";
StringRef Val = A->getValue();
if (Val == "per-pass")
Opts.TimePassesPerRun = false;
else if (Val == "per-pass-run")
Opts.TimePassesPerRun = true;
else
Diags.Report(diag::err_drv_invalid_value)
<< A->getAsString(Args) << A->getValue();
}
}
// Basic Block Sections implies Function Sections.
Opts.FunctionSections =
Args.hasArg(OPT_ffunction_sections) ||
(Opts.BBSections != "none" && Opts.BBSections != "labels");
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;
}
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 =
std::string(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", OutputFile)
.Default(llvm::sys::path::filename(OutputFile).str());
// The memory profile runtime appends the pid to make this name more unique.
const char *MemProfileBasename = "memprof.profraw";
if (Args.hasArg(OPT_fmemory_profile_EQ)) {
SmallString<128> Path(
std::string(Args.getLastArgValue(OPT_fmemory_profile_EQ)));
llvm::sys::path::append(Path, MemProfileBasename);
Opts.MemoryProfileOutput = std::string(Path);
} else if (Args.hasArg(OPT_fmemory_profile))
Opts.MemoryProfileOutput = MemProfileBasename;
if (Opts.EmitGcovArcs || Opts.EmitGcovNotes) {
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);
}
}
}
// 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.
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().matches(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');
}
}
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);
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;
}
}
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);
}
if (Args.getLastArg(OPT_femulated_tls) ||
Args.getLastArg(OPT_fno_emulated_tls)) {
Opts.ExplicitEmulatedTLS = true;
}
if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_EQ)) {
StringRef Val = A->getValue();
Opts.FPDenormalMode = llvm::parseDenormalFPAttribute(Val);
if (!Opts.FPDenormalMode.isValid())
Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
}
if (Arg *A = Args.getLastArg(OPT_fdenormal_fp_math_f32_EQ)) {
StringRef Val = A->getValue();
Opts.FP32DenormalMode = llvm::parseDenormalFPAttribute(Val);
if (!Opts.FP32DenormalMode.isValid())
Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
}
// X86_32 has -fppc-struct-return and -freg-struct-return.
// PPC32 has -maix-struct-return and -msvr4-struct-return.
if (Arg *A =
Args.getLastArg(OPT_fpcc_struct_return, OPT_freg_struct_return,
OPT_maix_struct_return, OPT_msvr4_struct_return)) {
// TODO: We might want to consider enabling these options on AIX in the
// future.
if (T.isOSAIX())
Diags.Report(diag::err_drv_unsupported_opt_for_target)
<< A->getSpelling() << T.str();
const Option &O = A->getOption();
if (O.matches(OPT_fpcc_struct_return) ||
O.matches(OPT_maix_struct_return)) {
Opts.setStructReturnConvention(CodeGenOptions::SRCK_OnStack);
} else {
assert(O.matches(OPT_freg_struct_return) ||
O.matches(OPT_msvr4_struct_return));
Opts.setStructReturnConvention(CodeGenOptions::SRCK_InRegs);
}
}
if (T.isOSAIX() && (Args.hasArg(OPT_mignore_xcoff_visibility) ||
!Args.hasArg(OPT_fvisibility)))
Opts.IgnoreXCOFFVisibility = 1;
if (Arg *A =
Args.getLastArg(OPT_mabi_EQ_vec_default, OPT_mabi_EQ_vec_extabi)) {
if (!T.isOSAIX())
Diags.Report(diag::err_drv_unsupported_opt_for_target)
<< A->getSpelling() << T.str();
const Option &O = A->getOption();
if (O.matches(OPT_mabi_EQ_vec_default))
Diags.Report(diag::err_aix_default_altivec_abi)
<< A->getSpelling() << T.str();
else {
assert(O.matches(OPT_mabi_EQ_vec_extabi));
Opts.EnableAIXExtendedAltivecABI = 1;
}
}
bool NeedLocTracking = false;
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;
}
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";
// Parse remarks hotness threshold. Valid value is either integer or 'auto'.
if (auto *arg =
Args.getLastArg(options::OPT_fdiagnostics_hotness_threshold_EQ)) {
auto ResultOrErr =
llvm::remarks::parseHotnessThresholdOption(arg->getValue());
if (!ResultOrErr) {
Diags.Report(diag::err_drv_invalid_diagnotics_hotness_threshold)
<< "-fdiagnostics-hotness-threshold=";
} else {
Opts.DiagnosticsHotnessThreshold = *ResultOrErr;
if ((!Opts.DiagnosticsHotnessThreshold.hasValue() ||
Opts.DiagnosticsHotnessThreshold.getValue() > 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);
// 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.EmitVersionIdentMetadata = Args.hasFlag(OPT_Qy, OPT_Qn, true);
if (Args.hasArg(options::OPT_ffinite_loops))
Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Always;
else if (Args.hasArg(options::OPT_fno_finite_loops))
Opts.FiniteLoops = CodeGenOptions::FiniteLoopsKind::Never;
return Success;
}
static void ParseDependencyOutputArgs(DependencyOutputOptions &Opts,
ArgList &Args) {
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;
}
// 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.
if (!Args.hasArg(OPT_fno_sanitize_blacklist)) {
for (const auto *A : Args.filtered(OPT_fsanitize_blacklist)) {
StringRef Val = A->getValue();
if (Val.find('=') == StringRef::npos)
Opts.ExtraDeps.push_back(std::string(Val));
}
if (Opts.IncludeSystemHeaders) {
for (const auto *A : Args.filtered(OPT_fsanitize_system_blacklist)) {
StringRef Val = A->getValue();
if (Val.find('=') == StringRef::npos)
Opts.ExtraDeps.push_back(std::string(Val));
}
}
}
// -fprofile-list= dependencies.
for (const auto &Filename : Args.getAllArgValues(OPT_fprofile_list_EQ))
Opts.ExtraDeps.push_back(Filename);
// Propagate the extra dependencies.
for (const auto *A : Args.filtered(OPT_fdepfile_entry)) {
Opts.ExtraDeps.push_back(A->getValue());
}
// 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(std::string(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;
Diags.Report(diag::err_drv_invalid_value) << "-verify=" << Prefix;
Diags.Report(diag::note_drv_verify_prefix_spelling);
}
}
return Success;
}
bool CompilerInvocation::parseSimpleArgs(const ArgList &Args,
DiagnosticsEngine &Diags) {
bool Success = true;
#define OPTION_WITH_MARSHALLING( \
PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
MERGER, EXTRACTOR, TABLE_INDEX) \
PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \
SHOULD_PARSE, this->KEYPATH, DEFAULT_VALUE, \
IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \
MERGER, TABLE_INDEX)
#include "clang/Driver/Options.inc"
#undef OPTION_WITH_MARSHALLING
return Success;
}
bool clang::ParseDiagnosticArgs(DiagnosticOptions &Opts, ArgList &Args,
DiagnosticsEngine *Diags,
bool DefaultDiagColor) {
Optional<DiagnosticsEngine> IgnoringDiags;
if (!Diags) {
IgnoringDiags.emplace(new DiagnosticIDs(), new DiagnosticOptions(),
new IgnoringDiagConsumer());
Diags = &*IgnoringDiags;
}
// The key paths of diagnostic options defined in Options.td start with
// "DiagnosticOpts->". Let's provide the expected variable name and type.
DiagnosticOptions *DiagnosticOpts = &Opts;
bool Success = true;
#define DIAG_OPTION_WITH_MARSHALLING( \
PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
MERGER, EXTRACTOR, TABLE_INDEX) \
PARSE_OPTION_WITH_MARSHALLING(Args, *Diags, Success, ID, FLAGS, PARAM, \
SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \
IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \
MERGER, TABLE_INDEX)
#include "clang/Driver/Options.inc"
#undef DIAG_OPTION_WITH_MARSHALLING
llvm::sys::Process::UseANSIEscapeCodes(Opts.UseANSIEscapeCodes);
if (Arg *A =
Args.getLastArg(OPT_diagnostic_serialized_file, OPT__serialize_diags))
Opts.DiagnosticSerializationFile = A->getValue();
Opts.ShowColors = parseShowColorsArgs(Args, DefaultDiagColor);
if (Args.getLastArgValue(OPT_fdiagnostics_format) == "msvc-fallback")
Opts.CLFallbackMode = true;
Opts.VerifyDiagnostics = Args.hasArg(OPT_verify) || Args.hasArg(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);
if (Opts.TabStop == 0 || Opts.TabStop > DiagnosticOptions::MaxTabStop) {
Opts.TabStop = DiagnosticOptions::DefaultTabStop;
Diags->Report(diag::warn_ignoring_ftabstop_value)
<< Opts.TabStop << DiagnosticOptions::DefaultTabStop;
}
addDiagnosticArgs(Args, OPT_W_Group, OPT_W_value_Group, Opts.Warnings);
addDiagnosticArgs(Args, OPT_R_Group, OPT_R_value_Group, Opts.Remarks);
return Success;
}
/// 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 = std::string(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 = std::string(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:
case OPT_ast_dump_decl_types:
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-v2";
if (ArgStr == "experimental-yaml-elf-v1" ||
ArgStr == "experimental-ifs-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-v2"
<< ErrorMessage;
} else if (!ArgStr.startswith("experimental-ifs-")) {
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-v2"
<< ErrorMessage;
} else {
Opts.ProgramAction = frontend::GenerateInterfaceStubs;
}
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();
}
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.Plugins = Args.getAllArgValues(OPT_load);
Opts.ASTDumpDecls = Args.hasArg(OPT_ast_dump, OPT_ast_dump_EQ);
Opts.ASTDumpAll = Args.hasArg(OPT_ast_dump_all, OPT_ast_dump_all_EQ);
// 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(std::string(Val));
}
if (Opts.ProgramAction != frontend::GenerateModule && Opts.IsSystemModule)
Diags.Report(diag::err_drv_argument_only_allowed_with) << "-fsystem-module"
<< "-emit-module";
if (Args.hasArg(OPT_aux_target_cpu))
Opts.AuxTargetCPU = std::string(Args.getLastArgValue(OPT_aux_target_cpu));
if (Args.hasArg(OPT_aux_target_feature))
Opts.AuxTargetFeatures = Args.getAllArgValues(OPT_aux_target_feature);
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 != "precompiled-header" &&
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", "precompiled-header",
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;
}
bool IsSystem = false;
// The -emit-module action implicitly takes a module map.
if (Opts.ProgramAction == frontend::GenerateModule &&
IK.getFormat() == InputKind::Source) {
IK = IK.withFormat(InputKind::ModuleMap);
IsSystem = Opts.IsSystemModule;
}
Opts.Inputs.emplace_back(std::move(Inputs[i]), IK, IsSystem);
}
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) {
if (const Arg *A = Args.getLastArg(OPT_stdlib_EQ))
Opts.UseLibcxx = (strcmp(A->getValue(), "libc++") == 0);
// 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 = std::string(P.str());
// 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){
auto Split = Val.split('=');
Opts.PrebuiltModuleFiles.insert(
{std::string(Split.first), std::string(Split.second)});
}
}
for (const auto *A : Args.filtered(OPT_fprebuilt_module_path))
Opts.AddPrebuiltModulePath(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 = std::string(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,
std::vector<std::string> &Includes,
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_gnu17;
#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.LangStd = 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.CPlusPlus20 = Std.isCPlusPlus20();
Opts.CPlusPlus2b = Std.isCPlusPlus2b();
Opts.GNUMode = Std.isGNUMode();
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_opencl30)
Opts.OpenCLVersion = 300;
else if (LangStd == LangStandard::lang_openclcpp)
Opts.OpenCLCPlusPlusVersion = 100;
// OpenCL has some additional defaults.
if (Opts.OpenCL) {
Opts.AltiVec = 0;
Opts.ZVector = 0;
Opts.setDefaultFPContractMode(LangOptions::FPM_On);
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.
Includes.push_back("opencl-c-base.h");
} else {
Includes.push_back("opencl-c.h");
}
}
}
Opts.HIP = IK.getLanguage() == Language::HIP;
Opts.CUDA = IK.getLanguage() == Language::CUDA || Opts.HIP;
if (Opts.HIP) {
// HIP toolchain does not support 'Fast' FPOpFusion in backends since it
// fuses multiplication/addition instructions without contract flag from
// device library functions in LLVM bitcode, which causes accuracy loss in
// certain math functions, e.g. tan(-1e20) becomes -0.933 instead of 0.8446.
// For device library functions in bitcode to work, 'Strict' or 'Standard'
// FPOpFusion options in backends is needed. Therefore 'fast-honor-pragmas'
// FP contract option is used to allow fuse across statements in frontend
// whereas respecting contract flag in backend.
Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas);
} else if (Opts.CUDA) {
// Allow fuse across statements disregarding pragmas.
Opts.setDefaultFPContractMode(LangOptions::FPM_Fast);
}
Opts.RenderScript = IK.getLanguage() == Language::RenderScript;
// 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.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;
}
/// 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 GenerateLangArgs(const LangOptions &Opts,
SmallVectorImpl<const char *> &Args,
CompilerInvocation::StringAllocator SA) {
if (Opts.IncludeDefaultHeader)
Args.push_back(SA(GetOptName(OPT_finclude_default_header)));
if (Opts.DeclareOpenCLBuiltins)
Args.push_back(SA(GetOptName(OPT_fdeclare_opencl_builtins)));
}
void CompilerInvocation::ParseLangArgs(LangOptions &Opts, ArgList &Args,
InputKind IK, const llvm::Triple &T,
std::vector<std::string> &Includes,
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(
static_cast<LangStandard::Kind>(KindValue));
if (IsInputCompatibleWithStandard(IK, Std)) {
auto Diag = Diags.Report(diag::note_drv_use_standard);
Diag << Std.getName() << Std.getDescription();
unsigned NumAliases = 0;
#define LANGSTANDARD(id, name, lang, desc, features)
#define LANGSTANDARD_ALIAS(id, alias) \
if (KindValue == LangStandard::lang_##id) ++NumAliases;
#define LANGSTANDARD_ALIAS_DEPR(id, alias)
#include "clang/Basic/LangStandards.def"
Diag << NumAliases;
#define LANGSTANDARD(id, name, lang, desc, features)
#define LANGSTANDARD_ALIAS(id, alias) \
if (KindValue == LangStandard::lang_##id) Diag << alias;
#define LANGSTANDARD_ALIAS_DEPR(id, alias)
#include "clang/Basic/LangStandards.def"
}
}
} else {
// Valid standard, check to make sure language and standard are
// compatible.
const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
if (!IsInputCompatibleWithStandard(IK, Std)) {
Diags.Report(diag::err_drv_argument_not_allowed_with)
<< A->getAsString(Args) << GetInputKindName(IK);
}
}
}
// -cl-std only applies for OpenCL language standards.
// Override the -std option in this case.
if (const Arg *A = Args.getLastArg(OPT_cl_std_EQ)) {
LangStandard::Kind OpenCLLangStd
= llvm::StringSwitch<LangStandard::Kind>(A->getValue())
.Cases("cl", "CL", LangStandard::lang_opencl10)
.Cases("cl1.0", "CL1.0", LangStandard::lang_opencl10)
.Cases("cl1.1", "CL1.1", LangStandard::lang_opencl11)
.Cases("cl1.2", "CL1.2", LangStandard::lang_opencl12)
.Cases("cl2.0", "CL2.0", LangStandard::lang_opencl20)
.Cases("cl3.0", "CL3.0", LangStandard::lang_opencl30)
.Cases("clc++", "CLC++", LangStandard::lang_openclcpp)
.Default(LangStandard::lang_unspecified);
if (OpenCLLangStd == LangStandard::lang_unspecified) {
Diags.Report(diag::err_drv_invalid_value)
<< A->getAsString(Args) << A->getValue();
}
else
LangStd = OpenCLLangStd;
}
// These need to be parsed now. They are used to set OpenCL defaults.
Opts.IncludeDefaultHeader = Args.hasArg(OPT_finclude_default_header);
Opts.DeclareOpenCLBuiltins = Args.hasArg(OPT_fdeclare_opencl_builtins);
CompilerInvocation::setLangDefaults(Opts, IK, T, Includes, LangStd);
// The key paths of codegen options defined in Options.td start with
// "LangOpts->". Let's provide the expected variable name and type.
LangOptions *LangOpts = &Opts;
bool Success = true;
#define LANG_OPTION_WITH_MARSHALLING( \
PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
MERGER, EXTRACTOR, TABLE_INDEX) \
PARSE_OPTION_WITH_MARSHALLING(Args, Diags, Success, ID, FLAGS, PARAM, \
SHOULD_PARSE, KEYPATH, DEFAULT_VALUE, \
IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, \
MERGER, TABLE_INDEX)
#include "clang/Driver/Options.inc"
#undef LANG_OPTION_WITH_MARSHALLING
if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) {
StringRef Name = A->getValue();
if (Name == "full" || Name == "branch") {
Opts.CFProtectionBranch = 1;
}
}
if (Args.hasArg(OPT_fno_operator_names))
Opts.CXXOperatorNames = 0;
if (Opts.ObjC) {
if (Arg *arg = Args.getLastArg(OPT_fobjc_runtime_EQ)) {
StringRef value = arg->getValue();
if (Opts.ObjCRuntime.tryParse(value))
Diags.Report(diag::err_drv_unknown_objc_runtime) << value;
}
if (Args.hasArg(OPT_fobjc_gc_only))
Opts.setGC(LangOptions::GCOnly);
else if (Args.hasArg(OPT_fobjc_gc))
Opts.setGC(LangOptions::HybridGC);
else if (Args.hasArg(OPT_fobjc_arc)) {
Opts.ObjCAutoRefCount = 1;
if (!Opts.ObjCRuntime.allowsARC())
Diags.Report(diag::err_arc_unsupported_on_runtime);
}
// ObjCWeakRuntime tracks whether the runtime supports __weak, not
// whether the feature is actually enabled. This is predominantly
// determined by -fobjc-runtime, but we allow it to be overridden
// from the command line for testing purposes.
if (Args.hasArg(OPT_fobjc_runtime_has_weak))
Opts.ObjCWeakRuntime = 1;
else
Opts.ObjCWeakRuntime = Opts.ObjCRuntime.allowsWeak();
// ObjCWeak determines whether __weak is actually enabled.
// Note that we allow -fno-objc-weak to disable this even in ARC mode.
if (auto weakArg = Args.getLastArg(OPT_fobjc_weak, OPT_fno_objc_weak)) {
if (!weakArg->getOption().matches(OPT_fobjc_weak)) {
assert(!Opts.ObjCWeak);
} else if (Opts.getGC() != LangOptions::NonGC) {
Diags.Report(diag::err_objc_weak_with_gc);
} else if (!Opts.ObjCWeakRuntime) {
Diags.Report(diag::err_objc_weak_unsupported);
} else {
Opts.ObjCWeak = 1;
}
} else if (Opts.ObjCAutoRefCount) {
Opts.ObjCWeak = Opts.ObjCWeakRuntime;
}
if (Args.hasArg(OPT_fobjc_subscripting_legacy_runtime))
Opts.ObjCSubscriptingLegacyRuntime =
(Opts.ObjCRuntime.getKind() == ObjCRuntime::FragileMacOSX);
}
if (Arg *A = Args.getLastArg(options::OPT_fgnuc_version_EQ)) {
// Check that the version has 1 to 3 components and the minor and patch
// versions fit in two decimal digits.
VersionTuple GNUCVer;
bool Invalid = GNUCVer.tryParse(A->getValue());
unsigned Major = GNUCVer.getMajor();
unsigned Minor = GNUCVer.getMinor().getValueOr(0);
unsigned Patch = GNUCVer.getSubminor().getValueOr(0);
if (Invalid || GNUCVer.getBuild() || Minor >= 100 || Patch >= 100) {
Diags.Report(diag::err_drv_invalid_value)
<< A->getAsString(Args) << A->getValue();
}
Opts.GNUCVersion = Major * 100 * 100 + Minor * 100 + Patch;
}
if (Args.hasArg(OPT_ftrapv)) {
Opts.setSignedOverflowBehavior(LangOptions::SOB_Trapping);
// Set the handler, if one is specified.
Opts.OverflowHandler =
std::string(Args.getLastArgValue(OPT_ftrapv_handler));
}
else if (Args.hasArg(OPT_fwrapv))
Opts.setSignedOverflowBehavior(LangOptions::SOB_Defined);
Opts.MicrosoftExt = Opts.MSVCCompat || Args.hasArg(OPT_fms_extensions);
Opts.AsmBlocks = Args.hasArg(OPT_fasm_blocks) || Opts.MicrosoftExt;
Opts.MSCompatibilityVersion = 0;
if (const Arg *A = Args.getLastArg(OPT_fms_compatibility_version)) {
VersionTuple VT;
if (VT.tryParse(A->getValue()))
Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args)
<< A->getValue();
Opts.MSCompatibilityVersion = VT.getMajor() * 10000000 +
VT.getMinor().getValueOr(0) * 100000 +
VT.getSubminor().getValueOr(0);
}
// Mimicking gcc's behavior, trigraphs are only enabled if -trigraphs
// is specified, or -std is set to a conforming mode.
// Trigraphs are disabled by default in c++1z onwards.
// For z/OS, trigraphs are enabled by default (without regard to the above).
Opts.Trigraphs =
(!Opts.GNUMode && !Opts.MSVCCompat && !Opts.CPlusPlus17) || T.isOSzOS();
Opts.Trigraphs =
Args.hasFlag(OPT_ftrigraphs, OPT_fno_trigraphs, Opts.Trigraphs);
Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers,
OPT_fno_dollars_in_identifiers,
Opts.DollarIdents);
// -ffixed-point
Opts.FixedPoint =
Args.hasFlag(OPT_ffixed_point, OPT_fno_fixed_point, /*Default=*/false) &&
!Opts.CPlusPlus;
Opts.PaddingOnUnsignedFixedPoint =
Args.hasFlag(OPT_fpadding_on_unsigned_fixed_point,
OPT_fno_padding_on_unsigned_fixed_point,
/*Default=*/false) &&
Opts.FixedPoint;
Opts.RTTI = Opts.CPlusPlus && !Args.hasArg(OPT_fno_rtti);
Opts.RTTIData = Opts.RTTI && !Args.hasArg(OPT_fno_rtti_data);
Opts.Blocks = Args.hasArg(OPT_fblocks) || (Opts.OpenCL
&& Opts.OpenCLVersion == 200);
Opts.Coroutines = Opts.CPlusPlus20 || Args.hasArg(OPT_fcoroutines_ts);
Opts.ConvergentFunctions = Opts.OpenCL || (Opts.CUDA && Opts.CUDAIsDevice) ||
Opts.SYCLIsDevice ||
Args.hasArg(OPT_fconvergent_functions);
Opts.DoubleSquareBracketAttributes =
Args.hasFlag(OPT_fdouble_square_bracket_attributes,
OPT_fno_double_square_bracket_attributes,
Opts.DoubleSquareBracketAttributes);
Opts.CPlusPlusModules = Opts.CPlusPlus20;
Opts.Modules =
Args.hasArg(OPT_fmodules) || Opts.ModulesTS || Opts.CPlusPlusModules;
Opts.ModulesDeclUse =
Args.hasArg(OPT_fmodules_decluse) || Opts.ModulesStrictDeclUse;
// FIXME: We only need this in C++ modules / Modules TS if we might textually
// enter a different module (eg, when building a header unit).
Opts.ModulesLocalVisibility =
Args.hasArg(OPT_fmodules_local_submodule_visibility) || Opts.ModulesTS ||
Opts.CPlusPlusModules;
Opts.ModulesSearchAll = Opts.Modules &&
!Args.hasArg(OPT_fno_modules_search_all) &&
Args.hasArg(OPT_fmodules_search_all);
Opts.CharIsSigned = Opts.OpenCL || !Args.hasArg(OPT_fno_signed_char);
Opts.WChar = Opts.CPlusPlus && !Args.hasArg(OPT_fno_wchar);
Opts.Char8 = Args.hasFlag(OPT_fchar8__t, OPT_fno_char8__t, Opts.CPlusPlus20);
Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
if (!Opts.NoBuiltin)
getAllNoBuiltinFuncValues(Args, Opts.NoBuiltinFuncs);
Opts.AlignedAllocation =
Args.hasFlag(OPT_faligned_allocation, OPT_fno_aligned_allocation,
Opts.AlignedAllocation);
Opts.AlignedAllocationUnavailable =
Opts.AlignedAllocation && Args.hasArg(OPT_aligned_alloc_unavailable);
if (Args.hasArg(OPT_fconcepts_ts))
Diags.Report(diag::warn_fe_concepts_ts_flag);
Opts.MathErrno = !Opts.OpenCL && Args.hasArg(OPT_fmath_errno);
Opts.LongDoubleSize = Args.hasArg(OPT_mlong_double_128)
? 128
: Args.hasArg(OPT_mlong_double_64) ? 64 : 0;
Opts.EnableAIXExtendedAltivecABI = Args.hasArg(OPT_mabi_EQ_vec_extabi);
Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
Opts.DumpRecordLayouts = Opts.DumpRecordLayoutsSimple
|| Args.hasArg(OPT_fdump_record_layouts);
if (Opts.FastRelaxedMath)
Opts.setDefaultFPContractMode(LangOptions::FPM_Fast);
Opts.XLPragmaPack = Args.hasArg(OPT_fxl_pragma_pack);
llvm::sort(Opts.ModuleFeatures);
Opts.ArmSveVectorBits =
getLastArgIntValue(Args, options::OPT_msve_vector_bits_EQ, 0, Diags);
// __declspec is enabled by default for the PS4 by the driver, and also
// enabled for Microsoft Extensions or Borland Extensions, here.
//
// FIXME: __declspec is also currently enabled for CUDA, but isn't really a
// CUDA extension. However, it is required for supporting
// __clang_cuda_builtin_vars.h, which uses __declspec(property). Once that has
// been rewritten in terms of something more generic, remove the Opts.CUDA
// term here.
Opts.DeclSpecKeyword =
Args.hasFlag(OPT_fdeclspec, OPT_fno_declspec,
(Opts.MicrosoftExt || Opts.Borland || Opts.CUDA));
// -mrtd option
if (Arg *A = Args.getLastArg(OPT_mrtd)) {
if (Opts.getDefaultCallingConv() != LangOptions::DCC_None)
Diags.Report(diag::err_drv_argument_not_allowed_with)
<< A->getSpelling() << "-fdefault-calling-conv";
else {
if (T.getArch() != llvm::Triple::x86)
Diags.Report(diag::err_drv_argument_not_allowed_with)
<< A->getSpelling() << T.getTriple();
else
Opts.setDefaultCallingConv(LangOptions::DCC_StdCall);
}
}
// Check if -fopenmp-simd is specified.
bool IsSimdSpecified =
Args.hasFlag(options::OPT_fopenmp_simd, options::OPT_fno_openmp_simd,
/*Default=*/false);
Opts.OpenMPSimd = !Opts.OpenMP && IsSimdSpecified;
Opts.OpenMPUseTLS =
Opts.OpenMP && !Args.hasArg(options::OPT_fnoopenmp_use_tls);
Opts.OpenMPIsDevice =
Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_is_device);
Opts.OpenMPIRBuilder =
Opts.OpenMP && Args.hasArg(options::OPT_fopenmp_enable_irbuilder);
bool IsTargetSpecified =
Opts.OpenMPIsDevice || Args.hasArg(options::OPT_fopenmp_targets_EQ);
Opts.ConvergentFunctions = Opts.ConvergentFunctions || Opts.OpenMPIsDevice;
if (Opts.OpenMP || Opts.OpenMPSimd) {
if (int Version = getLastArgIntValue(
Args, OPT_fopenmp_version_EQ,
(IsSimdSpecified || IsTargetSpecified) ? 50 : Opts.OpenMP, Diags))
Opts.OpenMP = Version;
// Provide diagnostic when a given target is not expected to be an OpenMP
// device or host.
if (!Opts.OpenMPIsDevice) {
switch (T.getArch()) {
default:
break;
// Add unsupported host targets here:
case llvm::Triple::nvptx:
case llvm::Triple::nvptx64:
Diags.Report(diag::err_drv_omp_host_target_not_supported) << T.str();
break;
}
}
}
// Set the flag to prevent the implementation from emitting device exception
// handling code for those requiring so.
if ((Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN())) ||
Opts.OpenCLCPlusPlus) {
Opts.Exceptions = 0;
Opts.CXXExceptions = 0;
}
if (Opts.OpenMPIsDevice && T.isNVPTX()) {
Opts.OpenMPCUDANumSMs =
getLastArgIntValue(Args, options::OPT_fopenmp_cuda_number_of_sm_EQ,
Opts.OpenMPCUDANumSMs, Diags);
Opts.OpenMPCUDABlocksPerSM =
getLastArgIntValue(Args, options::OPT_fopenmp_cuda_blocks_per_sm_EQ,
Opts.OpenMPCUDABlocksPerSM, Diags);
Opts.OpenMPCUDAReductionBufNum = getLastArgIntValue(
Args, options::OPT_fopenmp_cuda_teams_reduction_recs_num_EQ,
Opts.OpenMPCUDAReductionBufNum, Diags);
}
// Get the OpenMP target triples if any.
if (Arg *A = Args.getLastArg(options::OPT_fopenmp_targets_EQ)) {
enum ArchPtrSize { Arch16Bit, Arch32Bit, Arch64Bit };
auto getArchPtrSize = [](const llvm::Triple &T) {
if (T.isArch16Bit())
return Arch16Bit;
if (T.isArch32Bit())
return Arch32Bit;
assert(T.isArch64Bit() && "Expected 64-bit architecture");
return Arch64Bit;
};
for (unsigned i = 0; i < A->getNumValues(); ++i) {
llvm::Triple TT(A->getValue(i));
if (TT.getArch() == llvm::Triple::UnknownArch ||
!(TT.getArch() == llvm::Triple::aarch64 || TT.isPPC() ||
TT.getArch() == llvm::Triple::nvptx ||
TT.getArch() == llvm::Triple::nvptx64 ||
TT.getArch() == llvm::Triple::amdgcn ||
TT.getArch() == llvm::Triple::x86 ||
TT.getArch() == llvm::Triple::x86_64))
Diags.Report(diag::err_drv_invalid_omp_target) << A->getValue(i);
else if (getArchPtrSize(T) != getArchPtrSize(TT))
Diags.Report(diag::err_drv_incompatible_omp_arch)
<< A->getValue(i) << T.str();
else
Opts.OMPTargetTriples.push_back(TT);
}
}
// Get OpenMP host file path if any and report if a non existent file is
// found
if (Arg *A = Args.getLastArg(options::OPT_fopenmp_host_ir_file_path)) {
Opts.OMPHostIRFile = A->getValue();
if (!llvm::sys::fs::exists(Opts.OMPHostIRFile))
Diags.Report(diag::err_drv_omp_host_ir_file_not_found)
<< Opts.OMPHostIRFile;
}
// Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options
Opts.OpenMPCUDAMode = Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) &&
Args.hasArg(options::OPT_fopenmp_cuda_mode);
// Set CUDA support for parallel execution of target regions for OpenMP target
// NVPTX/AMDGCN if specified in options.
Opts.OpenMPCUDATargetParallel =
Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) &&
Args.hasArg(options::OPT_fopenmp_cuda_parallel_target_regions);
// Set CUDA mode for OpenMP target NVPTX/AMDGCN if specified in options
Opts.OpenMPCUDAForceFullRuntime =
Opts.OpenMPIsDevice && (T.isNVPTX() || T.isAMDGCN()) &&
Args.hasArg(options::OPT_fopenmp_cuda_force_full_runtime);
// Record whether the __DEPRECATED define was requested.
Opts.Deprecated = Args.hasFlag(OPT_fdeprecated_macro,
OPT_fno_deprecated_macro,
Opts.Deprecated);
// FIXME: Eliminate this dependency.
unsigned Opt = getOptimizationLevel(Args, IK, Diags),
OptSize = getOptimizationLevelSize(Args);
Opts.Optimize = Opt != 0;
Opts.OptimizeSize = OptSize != 0;
// This is the __NO_INLINE__ define, which just depends on things like the
// optimization level and -fno-inline, not actually whether the backend has
// inlining enabled.
Opts.NoInlineDefine = !Opts.Optimize;
if (Arg *InlineArg = Args.getLastArg(
options::OPT_finline_functions, options::OPT_finline_hint_functions,
options::OPT_fno_inline_functions, options::OPT_fno_inline))
if (InlineArg->getOption().matches(options::OPT_fno_inline))
Opts.NoInlineDefine = true;
if (Arg *A = Args.getLastArg(OPT_ffp_contract)) {
StringRef Val = A->getValue();
if (Val == "fast")
Opts.setDefaultFPContractMode(LangOptions::FPM_Fast);
else if (Val == "on")
Opts.setDefaultFPContractMode(LangOptions::FPM_On);
else if (Val == "off")
Opts.setDefaultFPContractMode(LangOptions::FPM_Off);
else if (Val == "fast-honor-pragmas")
Opts.setDefaultFPContractMode(LangOptions::FPM_FastHonorPragmas);
else
Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
}
LangOptions::FPExceptionModeKind FPEB = LangOptions::FPE_Ignore;
if (Arg *A = Args.getLastArg(OPT_ffp_exception_behavior_EQ)) {
StringRef Val = A->getValue();
if (Val.equals("ignore"))
FPEB = LangOptions::FPE_Ignore;
else if (Val.equals("maytrap"))
FPEB = LangOptions::FPE_MayTrap;
else if (Val.equals("strict"))
FPEB = LangOptions::FPE_Strict;
else
Diags.Report(diag::err_drv_invalid_value) << A->getAsString(Args) << Val;
}
Opts.setFPExceptionMode(FPEB);
// Parse -fsanitize= arguments.
parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
Diags, Opts.Sanitize);
std::vector<std::string> systemBlacklists =
Args.getAllArgValues(OPT_fsanitize_system_blacklist);
Opts.SanitizerBlacklistFiles.insert(Opts.SanitizerBlacklistFiles.end(),
systemBlacklists.begin(),
systemBlacklists.end());
if (Arg *A = Args.getLastArg(OPT_fclang_abi_compat_EQ)) {
Opts.setClangABICompat(LangOptions::ClangABI::Latest);
StringRef Ver = A->getValue();
std::pair<StringRef, StringRef> VerParts = Ver.split('.');
unsigned Major, Minor = 0;
// Check the version number is valid: either 3.x (0 <= x <= 9) or
// y or y.0 (4 <= y <= current version).
if (!VerParts.first.startswith("0") &&
!VerParts.first.getAsInteger(10, Major) &&
3 <= Major && Major <= CLANG_VERSION_MAJOR &&
(Major == 3 ? VerParts.second.size() == 1 &&
!VerParts.second.getAsInteger(10, Minor)
: VerParts.first.size() == Ver.size() ||
VerParts.second == "0")) {
// Got a valid version number.
if (Major == 3 && Minor <= 8)
Opts.setClangABICompat(LangOptions::ClangABI::Ver3_8);
else if (Major <= 4)
Opts.setClangABICompat(LangOptions::ClangABI::Ver4);
else if (Major <= 6)
Opts.setClangABICompat(LangOptions::ClangABI::Ver6);
else if (Major <= 7)
Opts.setClangABICompat(LangOptions::ClangABI::Ver7);
else if (Major <= 9)
Opts.setClangABICompat(LangOptions::ClangABI::Ver9);
else if (Major <= 11)
Opts.setClangABICompat(LangOptions::ClangABI::Ver11);
} else if (Ver != "latest") {
Diags.Report(diag::err_drv_invalid_value)
<< A->getAsString(Args) << A->getValue();
}
}
if (Arg *A = Args.getLastArg(OPT_msign_return_address_EQ)) {
StringRef SignScope = A->getValue();
if (SignScope.equals_lower("none"))
Opts.setSignReturnAddressScope(
LangOptions::SignReturnAddressScopeKind::None);
else if (SignScope.equals_lower("all"))
Opts.setSignReturnAddressScope(
LangOptions::SignReturnAddressScopeKind::All);
else if (SignScope.equals_lower("non-leaf"))
Opts.setSignReturnAddressScope(
LangOptions::SignReturnAddressScopeKind::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(
LangOptions::SignReturnAddressKeyKind::AKey);
else if (SignKey.equals_lower("b_key"))
Opts.setSignReturnAddressKey(
LangOptions::SignReturnAddressKeyKind::BKey);
else
Diags.Report(diag::err_drv_invalid_value)
<< A->getAsString(Args) << SignKey;
}
}
}
std::string ThreadModel =
std::string(Args.getLastArgValue(OPT_mthread_model, "posix"));
if (ThreadModel != "posix" && ThreadModel != "single")
Diags.Report(diag::err_drv_invalid_value)
<< Args.getLastArg(OPT_mthread_model)->getAsString(Args) << ThreadModel;
Opts.setThreadModel(
llvm::StringSwitch<LangOptions::ThreadModelKind>(ThreadModel)
.Case("posix", LangOptions::ThreadModelKind::POSIX)
.Case("single", LangOptions::ThreadModelKind::Single));
}
static bool isStrictlyPreprocessorAction(frontend::ActionKind Action) {
switch (Action) {
case frontend::ASTDeclList:
case frontend::ASTDump:
case frontend::ASTPrint:
case frontend::ASTView:
case frontend::EmitAssembly:
case frontend::EmitBC:
case frontend::EmitHTML:
case frontend::EmitLLVM:
case frontend::EmitLLVMOnly:
case frontend::EmitCodeGenOnly:
case frontend::EmitObj:
case frontend::FixIt:
case frontend::GenerateModule:
case frontend::GenerateModuleInterface:
case frontend::GenerateHeaderModule:
case frontend::GeneratePCH:
case frontend::GenerateInterfaceStubs:
case frontend::ParseSyntaxOnly:
case frontend::ModuleFileInfo:
case frontend::VerifyPCH:
case frontend::PluginAction:
case frontend::RewriteObjC:
case frontend::RewriteTest:
case frontend::RunAnalysis:
case frontend::TemplightDump:
case frontend::MigrateSource:
return false;
case frontend::DumpCompilerOptions:
case frontend::DumpRawTokens:
case frontend::DumpTokens:
case frontend::InitOnly:
case frontend::PrintPreamble:
case frontend::PrintPreprocessedInput:
case frontend::RewriteMacros:
case frontend::RunPreprocessorOnly:
case frontend::PrintDependencyDirectivesSourceMinimizerOutput:
return true;
}
llvm_unreachable("invalid frontend action");
}
static void ParsePreprocessorArgs(PreprocessorOptions &Opts, ArgList &Args,
DiagnosticsEngine &Diags,
frontend::ActionKind Action) {
Opts.PCHWithHdrStop = Args.hasArg(OPT_pch_through_hdrstop_create) ||
Args.hasArg(OPT_pch_through_hdrstop_use);
for (const auto *A : Args.filtered(OPT_error_on_deserialized_pch_decl))
Opts.DeserializedPCHDeclsToErrorOn.insert(A->getValue());
for (const auto &A : Args.getAllArgValues(OPT_fmacro_prefix_map_EQ)) {
auto Split = StringRef(A).split('=');
Opts.MacroPrefixMap.insert(
{std::string(Split.first), std::string(Split.second)});
}
if (const Arg *A = Args.getLastArg(OPT_preamble_bytes_EQ)) {
StringRef Value(A->getValue());
size_t Comma = Value.find(',');
unsigned Bytes = 0;
unsigned EndOfLine = 0;
if (Comma == StringRef::npos ||
Value.substr(0, Comma).getAsInteger(10, Bytes) ||
Value.substr(Comma + 1).getAsInteger(10, EndOfLine))
Diags.Report(diag::err_drv_preamble_format);
else {
Opts.PrecompiledPreambleBytes.first = Bytes;
Opts.PrecompiledPreambleBytes.second = (EndOfLine != 0);
}
}
// Add the __CET__ macro if a CFProtection option is set.
if (const Arg *A = Args.getLastArg(OPT_fcf_protection_EQ)) {
StringRef Name = A->getValue();
if (Name == "branch")
Opts.addMacroDef("__CET__=1");
else if (Name == "return")
Opts.addMacroDef("__CET__=2");
else if (Name == "full")
Opts.addMacroDef("__CET__=3");
}
// Add macros from the command line.
for (const auto *A : Args.filtered(OPT_D, OPT_U)) {
if (A->getOption().matches(OPT_D))
Opts.addMacroDef(A->getValue());
else
Opts.addMacroUndef(A->getValue());
}
// Add the ordered list of -includes.
for (const auto *A : Args.filtered(OPT_include))
Opts.Includes.emplace_back(A->getValue());
for (const auto *A : Args.filtered(OPT_chain_include))
Opts.ChainedIncludes.emplace_back(A->getValue());
for (const auto *A : Args.filtered(OPT_remap_file)) {
std::pair<StringRef, StringRef> Split = StringRef(A->getValue()).split(';');
if (Split.second.empty()) {
Diags.Report(diag::err_drv_invalid_remap_file) << A->getAsString(Args);
continue;
}
Opts.addRemappedFile(Split.first, Split.second);
}
// Always avoid lexing editor placeholders when we're just running the
// preprocessor as we never want to emit the
// "editor placeholder in source file" error in PP only mode.
if (isStrictlyPreprocessorAction(Action))
Opts.LexEditorPlaceholders = false;
}
static void ParsePreprocessorOutputArgs(PreprocessorOutputOptions &Opts,
ArgList &Args,
frontend::ActionKind Action) {
if (isStrictlyPreprocessorAction(Action))
Opts.ShowCPP = !Args.hasArg(OPT_dM);
else
Opts.ShowCPP = 0;
Opts.ShowMacros = Args.hasArg(OPT_dM) || Args.hasArg(OPT_dD);
}
static void ParseTargetArgs(TargetOptions &Opts, ArgList &Args,
DiagnosticsEngine &Diags) {
if (Arg *A = Args.getLastArg(options::OPT_target_sdk_version_EQ)) {
llvm::VersionTuple Version;
if (Version.tryParse(A->getValue()))
Diags.Report(diag::err_drv_invalid_value)
<< A->getAsString(Args) << A->getValue();
else
Opts.SDKVersion = Version;
}
}
bool CompilerInvocation::CreateFromArgs(CompilerInvocation &Res,
ArrayRef<const char *> CommandLineArgs,
DiagnosticsEngine &Diags,
const char *Argv0) {
bool Success = true;
// Parse the arguments.
const OptTable &Opts = getDriverOptTable();
const unsigned IncludedFlagsBitmask = options::CC1Option;
unsigned MissingArgIndex, MissingArgCount;
InputArgList Args = Opts.ParseArgs(CommandLineArgs, MissingArgIndex,
MissingArgCount, IncludedFlagsBitmask);
LangOptions &LangOpts = *Res.getLangOpts();
// Check for missing argument error.
if (MissingArgCount) {
Diags.Report(diag::err_drv_missing_argument)
<< Args.getArgString(MissingArgIndex) << MissingArgCount;
Success = false;
}
// Issue errors on unknown arguments.
for (const auto *A : Args.filtered(OPT_UNKNOWN)) {
auto ArgString = A->getAsString(Args);
std::string Nearest;
if (Opts.findNearest(ArgString, Nearest, IncludedFlagsBitmask) > 1)
Diags.Report(diag::err_drv_unknown_argument) << ArgString;
else
Diags.Report(diag::err_drv_unknown_argument_with_suggestion)
<< ArgString << Nearest;
Success = false;
}
Success &= Res.parseSimpleArgs(Args, Diags);
Success &= ParseAnalyzerArgs(*Res.getAnalyzerOpts(), Args, Diags);
ParseDependencyOutputArgs(Res.getDependencyOutputOpts(), Args);
if (!Res.getDependencyOutputOpts().OutputFile.empty() &&
Res.getDependencyOutputOpts().Targets.empty()) {
Diags.Report(diag::err_fe_dependency_file_requires_MT);
Success = false;
}
Success &= ParseDiagnosticArgs(Res.getDiagnosticOpts(), Args, &Diags,
/*DefaultDiagColor=*/false);
// FIXME: We shouldn't have to pass the DashX option around here
InputKind DashX = ParseFrontendArgs(Res.getFrontendOpts(), Args, Diags,
LangOpts.IsHeaderFile);
ParseTargetArgs(Res.getTargetOpts(), Args, Diags);
llvm::Triple T(Res.getTargetOpts().Triple);
ParseHeaderSearchArgs(Res.getHeaderSearchOpts(), Args,
Res.getFileSystemOpts().WorkingDir);
if (DashX.getFormat() == InputKind::Precompiled ||
DashX.getLanguage() == Language::LLVM_IR) {
// ObjCAAutoRefCount and Sanitize LangOpts are used to setup the
// PassManager in BackendUtil.cpp. They need to be initializd no matter
// what the input type is.
if (Args.hasArg(OPT_fobjc_arc))
LangOpts.ObjCAutoRefCount = 1;
// PIClevel and PIELevel are needed during code generation and this should be
// set regardless of the input type.
LangOpts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
LangOpts.PIE = Args.hasArg(OPT_pic_is_pie);
parseSanitizerKinds("-fsanitize=", Args.getAllArgValues(OPT_fsanitize_EQ),
Diags, LangOpts.Sanitize);
} else {
// Other LangOpts are only initialized when the input is not AST or LLVM IR.
// FIXME: Should we really be calling this for an Language::Asm input?
ParseLangArgs(LangOpts, Args, DashX, T, Res.getPreprocessorOpts().Includes,
Diags);
if (Res.getFrontendOpts().ProgramAction == frontend::RewriteObjC)
LangOpts.ObjCExceptions = 1;
if (T.isOSDarwin() && DashX.isPreprocessed()) {
// Supress the darwin-specific 'stdlibcxx-not-found' diagnostic for
// preprocessed input as we don't expect it to be used with -std=libc++
// anyway.
Res.getDiagnosticOpts().Warnings.push_back("no-stdlibcxx-not-found");
}
}
if (LangOpts.CUDA) {
// During CUDA device-side compilation, the aux triple is the
// triple used for host compilation.
if (LangOpts.CUDAIsDevice)
Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
}
// Set the triple of the host for OpenMP device compile.
if (LangOpts.OpenMPIsDevice)
Res.getTargetOpts().HostTriple = Res.getFrontendOpts().AuxTriple;
Success &= ParseCodeGenArgs(Res.getCodeGenOpts(), Args, DashX, Diags, T,
Res.getFrontendOpts().OutputFile, LangOpts);
// FIXME: Override value name discarding when asan or msan is used because the
// backend passes depend on the name of the alloca in order to print out
// names.
Res.getCodeGenOpts().DiscardValueNames &=
!LangOpts.Sanitize.has(SanitizerKind::Address) &&
!LangOpts.Sanitize.has(SanitizerKind::KernelAddress) &&
!LangOpts.Sanitize.has(SanitizerKind::Memory) &&
!LangOpts.Sanitize.has(SanitizerKind::KernelMemory);
ParsePreprocessorArgs(Res.getPreprocessorOpts(), Args, Diags,
Res.getFrontendOpts().ProgramAction);
ParsePreprocessorOutputArgs(Res.getPreprocessorOutputOpts(), Args,
Res.getFrontendOpts().ProgramAction);
// Turn on -Wspir-compat for SPIR target.
if (T.isSPIR())
Res.getDiagnosticOpts().Warnings.push_back("spir-compat");
// If sanitizer is enabled, disable OPT_ffine_grained_bitfield_accesses.
if (Res.getCodeGenOpts().FineGrainedBitfieldAccesses &&
!Res.getLangOpts()->Sanitize.empty()) {
Res.getCodeGenOpts().FineGrainedBitfieldAccesses = false;
Diags.Report(diag::warn_drv_fine_grained_bitfield_accesses_ignored);
}
// Store the command-line for using in the CodeView backend.
Res.getCodeGenOpts().Argv0 = Argv0;
Res.getCodeGenOpts().CommandLineArgs = CommandLineArgs;
FixupInvocation(Res, Diags, Args, DashX);
return Success;
}
std::string CompilerInvocation::getModuleHash() const {
// Note: For QoI reasons, the things we use as a hash here should all be
// dumped via the -module-info flag.
using llvm::hash_code;
using llvm::hash_value;
using llvm::hash_combine;
using llvm::hash_combine_range;
// Start the signature with the compiler version.
// FIXME: We'd rather use something more cryptographically sound than
// CityHash, but this will do for now.
hash_code code = hash_value(getClangFullRepositoryVersion());
// Also include the serialization version, in case LLVM_APPEND_VC_REV is off
// and getClangFullRepositoryVersion() doesn't include git revision.
code = hash_combine(code, serialization::VERSION_MAJOR,
serialization::VERSION_MINOR);
// Extend the signature with the language options
#define LANGOPT(Name, Bits, Default, Description) \
code = hash_combine(code, LangOpts->Name);
#define ENUM_LANGOPT(Name, Type, Bits, Default, Description) \
code = hash_combine(code, static_cast<unsigned>(LangOpts->get##Name()));
#define BENIGN_LANGOPT(Name, Bits, Default, Description)
#define BENIGN_ENUM_LANGOPT(Name, Type, Bits, Default, Description)
#include "clang/Basic/LangOptions.def"
for (StringRef Feature : LangOpts->ModuleFeatures)
code = hash_combine(code, Feature);
code = hash_combine(code, LangOpts->ObjCRuntime);
const auto &BCN = LangOpts->CommentOpts.BlockCommandNames;
code = hash_combine(code, hash_combine_range(BCN.begin(), BCN.end()));
// Extend the signature with the target options.
code = hash_combine(code, TargetOpts->Triple, TargetOpts->CPU,
TargetOpts->TuneCPU, TargetOpts->ABI);
for (const auto &FeatureAsWritten : TargetOpts->FeaturesAsWritten)
code = hash_combine(code, FeatureAsWritten);
// Extend the signature with preprocessor options.
const PreprocessorOptions &ppOpts = getPreprocessorOpts();
const HeaderSearchOptions &hsOpts = getHeaderSearchOpts();
code = hash_combine(code, ppOpts.UsePredefines, ppOpts.DetailedRecord);
for (const auto &I : getPreprocessorOpts().Macros) {
// If we're supposed to ignore this macro for the purposes of modules,
// don't put it into the hash.
if (!hsOpts.ModulesIgnoreMacros.empty()) {
// Check whether we're ignoring this macro.
StringRef MacroDef = I.first;
if (hsOpts.ModulesIgnoreMacros.count(
llvm::CachedHashString(MacroDef.split('=').first)))
continue;
}
code = hash_combine(code, I.first, I.second);
}
// Extend the signature with the sysroot and other header search options.
code = hash_combine(code, hsOpts.Sysroot,
hsOpts.ModuleFormat,
hsOpts.UseDebugInfo,
hsOpts.UseBuiltinIncludes,
hsOpts.UseStandardSystemIncludes,
hsOpts.UseStandardCXXIncludes,
hsOpts.UseLibcxx,
hsOpts.ModulesValidateDiagnosticOptions);
code = hash_combine(code, hsOpts.ResourceDir);
if (hsOpts.ModulesStrictContextHash) {
hash_code SHPC = hash_combine_range(hsOpts.SystemHeaderPrefixes.begin(),
hsOpts.SystemHeaderPrefixes.end());
hash_code UEC = hash_combine_range(hsOpts.UserEntries.begin(),
hsOpts.UserEntries.end());
code = hash_combine(code, hsOpts.SystemHeaderPrefixes.size(), SHPC,
hsOpts.UserEntries.size(), UEC);
const DiagnosticOptions &diagOpts = getDiagnosticOpts();
#define DIAGOPT(Name, Bits, Default) \
code = hash_combine(code, diagOpts.Name);
#define ENUM_DIAGOPT(Name, Type, Bits, Default) \
code = hash_combine(code, diagOpts.get##Name());
#include "clang/Basic/DiagnosticOptions.def"
#undef DIAGOPT
#undef ENUM_DIAGOPT
}
// Extend the signature with the user build path.
code = hash_combine(code, hsOpts.ModuleUserBuildPath);
// Extend the signature with the module file extensions.
const FrontendOptions &frontendOpts = getFrontendOpts();
for (const auto &ext : frontendOpts.ModuleFileExtensions) {
code = ext->hashExtension(code);
}
// When compiling with -gmodules, also hash -fdebug-prefix-map as it
// affects the debug info in the PCM.
if (getCodeGenOpts().DebugTypeExtRefs)
for (const auto &KeyValue : getCodeGenOpts().DebugPrefixMap)
code = hash_combine(code, KeyValue.first, KeyValue.second);
// Extend the signature with the enabled sanitizers, if at least one is
// enabled. Sanitizers which cannot affect AST generation aren't hashed.
SanitizerSet SanHash = LangOpts->Sanitize;
SanHash.clear(getPPTransparentSanitizers());
if (!SanHash.empty())
code = hash_combine(code, SanHash.Mask);
return llvm::APInt(64, code).toString(36, /*Signed=*/false);
}
void CompilerInvocation::generateCC1CommandLine(
SmallVectorImpl<const char *> &Args, StringAllocator SA) const {
// Capture the extracted value as a lambda argument to avoid potential issues
// with lifetime extension of the reference.
#define GENERATE_OPTION_WITH_MARSHALLING( \
ARGS, STRING_ALLOCATOR, KIND, FLAGS, SPELLING, ALWAYS_EMIT, KEYPATH, \
DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, EXTRACTOR, \
TABLE_INDEX) \
if ((FLAGS)&options::CC1Option) { \
[&](const auto &Extracted) { \
if (ALWAYS_EMIT || \
(Extracted != \
static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALUE) \
: (DEFAULT_VALUE)))) \
DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class, \
TABLE_INDEX, Extracted); \
}(EXTRACTOR(KEYPATH)); \
}
#define OPTION_WITH_MARSHALLING( \
PREFIX_TYPE, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
HELPTEXT, METAVAR, VALUES, SPELLING, SHOULD_PARSE, ALWAYS_EMIT, KEYPATH, \
DEFAULT_VALUE, IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, DENORMALIZER, \
MERGER, EXTRACTOR, TABLE_INDEX) \
GENERATE_OPTION_WITH_MARSHALLING(Args, SA, KIND, FLAGS, SPELLING, \
ALWAYS_EMIT, this->KEYPATH, DEFAULT_VALUE, \
IMPLIED_CHECK, IMPLIED_VALUE, DENORMALIZER, \
EXTRACTOR, TABLE_INDEX)
#define DIAG_OPTION_WITH_MARSHALLING OPTION_WITH_MARSHALLING
#define LANG_OPTION_WITH_MARSHALLING OPTION_WITH_MARSHALLING
#define CODEGEN_OPTION_WITH_MARSHALLING OPTION_WITH_MARSHALLING
#include "clang/Driver/Options.inc"
#undef CODEGEN_OPTION_WITH_MARSHALLING
#undef LANG_OPTION_WITH_MARSHALLING
#undef DIAG_OPTION_WITH_MARSHALLING
#undef OPTION_WITH_MARSHALLING
#undef GENERATE_OPTION_WITH_MARSHALLING
GenerateLangArgs(*LangOpts, Args, SA);
}
IntrusiveRefCntPtr<llvm::vfs::FileSystem>
clang::createVFSFromCompilerInvocation(const CompilerInvocation &CI,
DiagnosticsEngine &Diags) {
return createVFSFromCompilerInvocation(CI, Diags,
llvm::vfs::getRealFileSystem());
}
IntrusiveRefCntPtr<llvm::vfs::FileSystem>
clang::createVFSFromCompilerInvocation(
const CompilerInvocation &CI, DiagnosticsEngine &Diags,
IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS) {
if (CI.getHeaderSearchOpts().VFSOverlayFiles.empty())
return BaseFS;
IntrusiveRefCntPtr<llvm::vfs::FileSystem> Result = BaseFS;
// earlier vfs files are on the bottom
for (const auto &File : CI.getHeaderSearchOpts().VFSOverlayFiles) {
llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>> Buffer =
Result->getBufferForFile(File);
if (!Buffer) {
Diags.Report(diag::err_missing_vfs_overlay_file) << File;
continue;
}
IntrusiveRefCntPtr<llvm::vfs::FileSystem> FS = llvm::vfs::getVFSFromYAML(
std::move(Buffer.get()), /*DiagHandler*/ nullptr, File,
/*DiagContext*/ nullptr, Result);
if (!FS) {
Diags.Report(diag::err_invalid_vfs_overlay) << File;
continue;
}
Result = FS;
}
return Result;
}