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diff --git a/contrib/llvm-project/clang/include/clang/Frontend/CompilerInvocation.h b/contrib/llvm-project/clang/include/clang/Frontend/CompilerInvocation.h
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+//===- CompilerInvocation.h - Compiler Invocation Helper Data ---*- C++ -*-===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_FRONTEND_COMPILERINVOCATION_H
+#define LLVM_CLANG_FRONTEND_COMPILERINVOCATION_H
+
+#include "clang/Basic/CodeGenOptions.h"
+#include "clang/Basic/DiagnosticOptions.h"
+#include "clang/Basic/FileSystemOptions.h"
+#include "clang/Basic/LLVM.h"
+#include "clang/Basic/LangOptions.h"
+#include "clang/Frontend/DependencyOutputOptions.h"
+#include "clang/Frontend/FrontendOptions.h"
+#include "clang/Frontend/LangStandard.h"
+#include "clang/Frontend/MigratorOptions.h"
+#include "clang/Frontend/PreprocessorOutputOptions.h"
+#include "clang/StaticAnalyzer/Core/AnalyzerOptions.h"
+#include "llvm/ADT/IntrusiveRefCntPtr.h"
+#include <memory>
+#include <string>
+
+namespace llvm {
+
+class Triple;
+
+namespace opt {
+
+class ArgList;
+
+} // namespace opt
+
+namespace vfs {
+
+class FileSystem;
+
+} // namespace vfs
+
+} // namespace llvm
+
+namespace clang {
+
+class DiagnosticsEngine;
+class HeaderSearchOptions;
+class PreprocessorOptions;
+class TargetOptions;
+
+/// Fill out Opts based on the options given in Args.
+///
+/// Args must have been created from the OptTable returned by
+/// createCC1OptTable().
+///
+/// When errors are encountered, return false and, if Diags is non-null,
+/// report the error(s).
+bool ParseDiagnosticArgs(DiagnosticOptions &Opts, llvm::opt::ArgList &Args,
+                         DiagnosticsEngine *Diags = nullptr,
+                         bool DefaultDiagColor = true,
+                         bool DefaultShowOpt = true);
+
+class CompilerInvocationBase {
+public:
+  /// Options controlling the language variant.
+  std::shared_ptr<LangOptions> LangOpts;
+
+  /// Options controlling the target.
+  std::shared_ptr<TargetOptions> TargetOpts;
+
+  /// Options controlling the diagnostic engine.
+  IntrusiveRefCntPtr<DiagnosticOptions> DiagnosticOpts;
+
+  /// Options controlling the \#include directive.
+  std::shared_ptr<HeaderSearchOptions> HeaderSearchOpts;
+
+  /// Options controlling the preprocessor (aside from \#include handling).
+  std::shared_ptr<PreprocessorOptions> PreprocessorOpts;
+
+  CompilerInvocationBase();
+  CompilerInvocationBase(const CompilerInvocationBase &X);
+  CompilerInvocationBase &operator=(const CompilerInvocationBase &) = delete;
+  ~CompilerInvocationBase();
+
+  LangOptions *getLangOpts() { return LangOpts.get(); }
+  const LangOptions *getLangOpts() const { return LangOpts.get(); }
+
+  TargetOptions &getTargetOpts() { return *TargetOpts.get(); }
+  const TargetOptions &getTargetOpts() const { return *TargetOpts.get(); }
+
+  DiagnosticOptions &getDiagnosticOpts() const { return *DiagnosticOpts; }
+
+  HeaderSearchOptions &getHeaderSearchOpts() { return *HeaderSearchOpts; }
+
+  const HeaderSearchOptions &getHeaderSearchOpts() const {
+    return *HeaderSearchOpts;
+  }
+
+  std::shared_ptr<HeaderSearchOptions> getHeaderSearchOptsPtr() const {
+    return HeaderSearchOpts;
+  }
+
+  std::shared_ptr<PreprocessorOptions> getPreprocessorOptsPtr() {
+    return PreprocessorOpts;
+  }
+
+  PreprocessorOptions &getPreprocessorOpts() { return *PreprocessorOpts; }
+
+  const PreprocessorOptions &getPreprocessorOpts() const {
+    return *PreprocessorOpts;
+  }
+};
+
+/// Helper class for holding the data necessary to invoke the compiler.
+///
+/// This class is designed to represent an abstract "invocation" of the
+/// compiler, including data such as the include paths, the code generation
+/// options, the warning flags, and so on.
+class CompilerInvocation : public CompilerInvocationBase {
+  /// Options controlling the static analyzer.
+  AnalyzerOptionsRef AnalyzerOpts;
+
+  MigratorOptions MigratorOpts;
+
+  /// Options controlling IRgen and the backend.
+  CodeGenOptions CodeGenOpts;
+
+  /// Options controlling dependency output.
+  DependencyOutputOptions DependencyOutputOpts;
+
+  /// Options controlling file system operations.
+  FileSystemOptions FileSystemOpts;
+
+  /// Options controlling the frontend itself.
+  FrontendOptions FrontendOpts;
+
+  /// Options controlling preprocessed output.
+  PreprocessorOutputOptions PreprocessorOutputOpts;
+
+public:
+  CompilerInvocation() : AnalyzerOpts(new AnalyzerOptions()) {}
+
+  /// @name Utility Methods
+  /// @{
+
+  /// Create a compiler invocation from a list of input options.
+  /// \returns true on success.
+  ///
+  /// \param [out] Res - The resulting invocation.
+  /// \param ArgBegin - The first element in the argument vector.
+  /// \param ArgEnd - The last element in the argument vector.
+  /// \param Diags - The diagnostic engine to use for errors.
+  static bool CreateFromArgs(CompilerInvocation &Res,
+                             const char* const *ArgBegin,
+                             const char* const *ArgEnd,
+                             DiagnosticsEngine &Diags);
+
+  /// Get the directory where the compiler headers
+  /// reside, relative to the compiler binary (found by the passed in
+  /// arguments).
+  ///
+  /// \param Argv0 - The program path (from argv[0]), for finding the builtin
+  /// compiler path.
+  /// \param MainAddr - The address of main (or some other function in the main
+  /// executable), for finding the builtin compiler path.
+  static std::string GetResourcesPath(const char *Argv0, void *MainAddr);
+
+  /// Set language defaults for the given input language and
+  /// language standard in the given LangOptions object.
+  ///
+  /// \param Opts - The LangOptions object to set up.
+  /// \param IK - The input language.
+  /// \param T - The target triple.
+  /// \param PPOpts - The PreprocessorOptions affected.
+  /// \param LangStd - The input language standard.
+  static void setLangDefaults(LangOptions &Opts, InputKind IK,
+                   const llvm::Triple &T, PreprocessorOptions &PPOpts,
+                   LangStandard::Kind LangStd = LangStandard::lang_unspecified);
+
+  /// Retrieve a module hash string that is suitable for uniquely
+  /// identifying the conditions under which the module was built.
+  std::string getModuleHash() const;
+
+  /// @}
+  /// @name Option Subgroups
+  /// @{
+
+  AnalyzerOptionsRef getAnalyzerOpts() const { return AnalyzerOpts; }
+
+  MigratorOptions &getMigratorOpts() { return MigratorOpts; }
+  const MigratorOptions &getMigratorOpts() const { return MigratorOpts; }
+
+  CodeGenOptions &getCodeGenOpts() { return CodeGenOpts; }
+  const CodeGenOptions &getCodeGenOpts() const { return CodeGenOpts; }
+
+  DependencyOutputOptions &getDependencyOutputOpts() {
+    return DependencyOutputOpts;
+  }
+
+  const DependencyOutputOptions &getDependencyOutputOpts() const {
+    return DependencyOutputOpts;
+  }
+
+  FileSystemOptions &getFileSystemOpts() { return FileSystemOpts; }
+
+  const FileSystemOptions &getFileSystemOpts() const {
+    return FileSystemOpts;
+  }
+
+  FrontendOptions &getFrontendOpts() { return FrontendOpts; }
+  const FrontendOptions &getFrontendOpts() const { return FrontendOpts; }
+
+  PreprocessorOutputOptions &getPreprocessorOutputOpts() {
+    return PreprocessorOutputOpts;
+  }
+
+  const PreprocessorOutputOptions &getPreprocessorOutputOpts() const {
+    return PreprocessorOutputOpts;
+  }
+
+  /// @}
+};
+
+IntrusiveRefCntPtr<llvm::vfs::FileSystem>
+createVFSFromCompilerInvocation(const CompilerInvocation &CI,
+                                DiagnosticsEngine &Diags);
+
+IntrusiveRefCntPtr<llvm::vfs::FileSystem> createVFSFromCompilerInvocation(
+    const CompilerInvocation &CI, DiagnosticsEngine &Diags,
+    IntrusiveRefCntPtr<llvm::vfs::FileSystem> BaseFS);
+
+} // namespace clang
+
+#endif // LLVM_CLANG_FRONTEND_COMPILERINVOCATION_H