/Users/buildslave/jenkins/workspace/coverage/llvm-project/clang/lib/Frontend/CompilerInvocation.cpp

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//===- CompilerInvocation.cpp ---------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#include "clang/Frontend/CompilerInvocation.h"
#include "TestModuleFileExtension.h"
#include "clang/Basic/Builtins.h"
#include "clang/Basic/CharInfo.h"
#include "clang/Basic/CodeGenOptions.h"
#include "clang/Basic/CommentOptions.h"
#include "clang/Basic/DebugInfoOptions.h"
#include "clang/Basic/Diagnostic.h"
#include "clang/Basic/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/TextDiagnosticBuffer.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/DenseSet.h"
#include "llvm/ADT/FloatingPointMode.h"
#include "llvm/ADT/Hashing.h"
#include "llvm/ADT/None.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/STLExtras.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/HashBuilder.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 <fstream>
#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;

//===----------------------------------------------------------------------===//
// Helpers.
//===----------------------------------------------------------------------===//

// Parse misexpect tolerance argument value.
// Valid option values are integers in the range [0, 100)
inline Expected<Optional<uint64_t>> parseToleranceOption(StringRef Arg) {
  int64_t Val;
  if (Arg.getAsInteger(10, Val))
    return llvm::createStringError(llvm::inconvertibleErrorCode(),
                                   "Not an integer: %s", Arg.data());
  return Val;
}

//===----------------------------------------------------------------------===//
// Initialization.
//===----------------------------------------------------------------------===//

CompilerInvocationRefBase::CompilerInvocationRefBase()
    : LangOpts(new LangOptions()), TargetOpts(new TargetOptions()),
      DiagnosticOpts(new DiagnosticOptions()),
      HeaderSearchOpts(new HeaderSearchOptions()),
      PreprocessorOpts(new PreprocessorOptions()),
      AnalyzerOpts(new AnalyzerOptions()) {}

CompilerInvocationRefBase::CompilerInvocationRefBase(
    const CompilerInvocationRefBase &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())),
      AnalyzerOpts(new AnalyzerOptions(*X.getAnalyzerOpts())) {}

CompilerInvocationRefBase::CompilerInvocationRefBase(
    CompilerInvocationRefBase &&X) = default;

CompilerInvocationRefBase &
CompilerInvocationRefBase::operator=(CompilerInvocationRefBase X) {
  LangOpts.swap(X.LangOpts);
  TargetOpts.swap(X.TargetOpts);
  DiagnosticOpts.swap(X.DiagnosticOpts);
  HeaderSearchOpts.swap(X.HeaderSearchOpts);
  PreprocessorOpts.swap(X.PreprocessorOpts);
  AnalyzerOpts.swap(X.AnalyzerOpts);
  return *this;
}

CompilerInvocationRefBase &
CompilerInvocationRefBase::operator=(CompilerInvocationRefBase &&X) = default;

CompilerInvocationRefBase::~CompilerInvocationRefBase() = 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) {
  if (Args.hasArg(Opt))
    return true;
  return None;
}

static Optional<bool> normalizeSimpleNegativeFlag(OptSpecifier Opt, unsigned,
                                                  const ArgList &Args,
                                                  DiagnosticsEngine &) {
  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 &) -> 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 &) -> Optional<bool> {
    if (const Arg *A = Args.getLastArg(Opt, OtherOpt)) {
      return A->getOption().matches(Opt) ? Value538k : OtherValue226k;
    }
    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,
                                  const Twine &Value) {
  switch (OptClass) {
  case Option::SeparateClass:
  case Option::JoinedOrSeparateClass:
  case Option::JoinedAndSeparateClass:
    Args.push_back(Spelling);
    Args.push_back(SA(Value));
    break;
  case Option::JoinedClass:
  case Option::CommaJoinedClass:
    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; ++I106k)
    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; ++I66.1k)
    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) {
  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;

  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 MaybeEnumVal169k = 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) {
  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) {
  auto *Arg = Args.getLastArg(Opt);
  if (!Arg)
    return None;
  IntTy Res;
  if (StringRef(Arg->getValue()).getAsInteger(0, Res)) {
    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 &) {
  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) {
  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) == Value) ? static_cast<T>(Value)140 : T()2.11M;
}

#define PARSE_OPTION_WITH_MARSHALLING(                                         \
    ARGS, DIAGS, ID, FLAGS, PARAM, SHOULD_PARSE, KEYPATH, DEFAULT_VALUE,       \
    IMPLIED_CHECK, IMPLIED_VALUE, NORMALIZER, MERGER, TABLE_INDEX)             \
  if ((FLAGS)&options::CC1Option) {                                            \
    KEYPATH = MERGER(KEYPATH, DEFAULT_VALUE1.18M);                                  \
    if (IMPLIED_CHECK)                                                         \
      KEYPATH = MERGER(KEYPATH, 80.4kIMPLIED_VALUE0);                                \
    if (SHOULD_PARSE)                                                          \
      if (auto 92.3MMaybeValue92.3M = NORMALIZER(OPT_##ID, TABLE_INDEX, ARGS, DIAGS))    \
        KEYPATH =                                                              \
            MERGER(KEYPATH, static_cast<decltype(KEYPATH)>(*MaybeValue));      \
  }

// 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_CHECK8.89M) ? (80.4kIMPLIED_VALUE0)    \
                                                          : (93.4MDEFAULT_VALUE1.18M)))) \
        DENORMALIZER(ARGS, SPELLING, STRING_ALLOCATOR, Option::KIND##Class,    \
                     TABLE_INDEX, Extracted);                                  \
           static_cast<decltype(KEYPATH)>((IMPLIED_CHECK) ? (IMPLIED_VALU

Coverage Report

Created: 2022-05-17 06:19