[clang] 6e303a9 - Revert "[AST] Add generator for source location introspection"

Stephen Kelly via cfe-commits cfe-commits at lists.llvm.org
Sun Mar 14 18:16:36 PDT 2021


Author: Stephen Kelly
Date: 2021-03-15T01:16:10Z
New Revision: 6e303a982d6ce5a281ba95238ed376a2caf27a52

URL: https://github.com/llvm/llvm-project/commit/6e303a982d6ce5a281ba95238ed376a2caf27a52
DIFF: https://github.com/llvm/llvm-project/commit/6e303a982d6ce5a281ba95238ed376a2caf27a52.diff

LOG: Revert "[AST] Add generator for source location introspection"

This reverts commit 91abaa1f8d97e8efa249c31686fd643ff5f1e2c2.

Added: 
    

Modified: 
    clang/lib/Tooling/CMakeLists.txt
    clang/unittests/CMakeLists.txt
    llvm/utils/gn/secondary/clang/lib/Tooling/BUILD.gn
    llvm/utils/gn/secondary/clang/unittests/BUILD.gn

Removed: 
    clang/include/clang/Tooling/NodeIntrospection.h
    clang/lib/Tooling/DumpTool/APIData.h
    clang/lib/Tooling/DumpTool/ASTSrcLocProcessor.cpp
    clang/lib/Tooling/DumpTool/ASTSrcLocProcessor.h
    clang/lib/Tooling/DumpTool/CMakeLists.txt
    clang/lib/Tooling/DumpTool/ClangSrcLocDump.cpp
    clang/lib/Tooling/DumpTool/generate_cxx_src_locs.py
    clang/lib/Tooling/NodeIntrospection.cpp
    clang/unittests/Introspection/CMakeLists.txt
    clang/unittests/Introspection/IntrospectionTest.cpp
    llvm/utils/gn/secondary/clang/lib/Tooling/DumpTool/BUILD.gn
    llvm/utils/gn/secondary/clang/unittests/Introspection/BUILD.gn


################################################################################
diff  --git a/clang/include/clang/Tooling/NodeIntrospection.h b/clang/include/clang/Tooling/NodeIntrospection.h
deleted file mode 100644
index abaa58b674a1..000000000000
--- a/clang/include/clang/Tooling/NodeIntrospection.h
+++ /dev/null
@@ -1,85 +0,0 @@
-//===- NodeIntrospection.h ------------------------------------*- 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
-//
-//===----------------------------------------------------------------------===//
-//
-//  This file contains the implementation of the NodeIntrospection.
-//
-//===----------------------------------------------------------------------===//
-
-#ifndef LLVM_CLANG_TOOLING_NODEINTROSPECTION_H
-#define LLVM_CLANG_TOOLING_NODEINTROSPECTION_H
-
-#include "clang/AST/ASTTypeTraits.h"
-#include "clang/AST/DeclarationName.h"
-
-#include <memory>
-#include <set>
-
-namespace clang {
-
-class Stmt;
-
-namespace tooling {
-
-class LocationCall {
-public:
-  enum LocationCallFlags { NoFlags, ReturnsPointer, IsCast };
-  LocationCall(std::shared_ptr<LocationCall> on, std::string name,
-               LocationCallFlags flags = NoFlags)
-      : m_on(on), m_name(name), m_flags(flags) {}
-  LocationCall(std::shared_ptr<LocationCall> on, std::string name,
-               std::vector<std::string> const &args,
-               LocationCallFlags flags = NoFlags)
-      : m_on(on), m_name(name), m_flags(flags) {}
-
-  LocationCall *on() const { return m_on.get(); }
-  StringRef name() const { return m_name; }
-  std::vector<std::string> const &args() const { return m_args; }
-  bool returnsPointer() const { return m_flags & ReturnsPointer; }
-  bool isCast() const { return m_flags & IsCast; }
-
-private:
-  std::shared_ptr<LocationCall> m_on;
-  std::string m_name;
-  std::vector<std::string> m_args;
-  LocationCallFlags m_flags;
-};
-
-class LocationCallFormatterCpp {
-public:
-  static std::string format(LocationCall *Call);
-};
-
-namespace internal {
-struct RangeLessThan {
-  bool operator()(
-      std::pair<SourceRange, std::shared_ptr<LocationCall>> const &LHS,
-      std::pair<SourceRange, std::shared_ptr<LocationCall>> const &RHS) const;
-};
-} // namespace internal
-
-template <typename T, typename U, typename Comp = std::less<std::pair<T, U>>>
-using UniqueMultiMap = std::set<std::pair<T, U>, Comp>;
-
-using SourceLocationMap =
-    UniqueMultiMap<SourceLocation, std::shared_ptr<LocationCall>>;
-using SourceRangeMap =
-    UniqueMultiMap<SourceRange, std::shared_ptr<LocationCall>,
-                   internal::RangeLessThan>;
-
-struct NodeLocationAccessors {
-  SourceLocationMap LocationAccessors;
-  SourceRangeMap RangeAccessors;
-};
-
-namespace NodeIntrospection {
-NodeLocationAccessors GetLocations(clang::Stmt const *Object);
-NodeLocationAccessors GetLocations(clang::DynTypedNode const &Node);
-} // namespace NodeIntrospection
-} // namespace tooling
-} // namespace clang
-#endif

diff  --git a/clang/lib/Tooling/CMakeLists.txt b/clang/lib/Tooling/CMakeLists.txt
index e8a2e35b6215..7a58af59dad1 100644
--- a/clang/lib/Tooling/CMakeLists.txt
+++ b/clang/lib/Tooling/CMakeLists.txt
@@ -8,112 +8,10 @@ add_subdirectory(Core)
 add_subdirectory(Inclusions)
 add_subdirectory(Refactoring)
 add_subdirectory(ASTDiff)
-add_subdirectory(DumpTool)
 add_subdirectory(Syntax)
 add_subdirectory(DependencyScanning)
 add_subdirectory(Transformer)
 
-find_package(Python3 COMPONENTS Interpreter)
-
-# Replace the last lib component of the current binary directory with include
-string(FIND ${CMAKE_CURRENT_BINARY_DIR} "/lib/" PATH_LIB_START REVERSE)
-if(PATH_LIB_START EQUAL -1)
-  message(FATAL_ERROR "Couldn't find lib component in binary directory")
-endif()
-math(EXPR PATH_LIB_END "${PATH_LIB_START}+5")
-string(SUBSTRING ${CMAKE_CURRENT_BINARY_DIR} 0 ${PATH_LIB_START} PATH_HEAD)
-string(SUBSTRING ${CMAKE_CURRENT_BINARY_DIR} ${PATH_LIB_END} -1 PATH_TAIL)
-string(CONCAT BINARY_INCLUDE_DIR ${PATH_HEAD} "/include/clang/" ${PATH_TAIL})
-
-if (NOT Python3_EXECUTABLE
-    OR WIN32
-    OR APPLE
-    OR GENERATOR_IS_MULTI_CONFIG
-    OR NOT LLVM_NATIVE_ARCH IN_LIST LLVM_TARGETS_TO_BUILD
-    )
-  file(GENERATE OUTPUT ${BINARY_INCLUDE_DIR}/NodeIntrospection.inc
-    CONTENT "
-namespace clang {
-namespace tooling {
-
-NodeLocationAccessors NodeIntrospection::GetLocations(clang::Stmt const *) {
-  return {};
-}
-NodeLocationAccessors
-NodeIntrospection::GetLocations(clang::DynTypedNode const &) {
-  return {};
-}
-} // namespace tooling
-} // namespace clang
-"
-    )
-    set(CLANG_TOOLING_BUILD_AST_INTROSPECTION "OFF" CACHE BOOL "")
-else()
-  # The generation of ASTNodeAPI.json takes a long time in a
-  # Debug build due to parsing AST.h. Disable the processing
-  # but setting CLANG_TOOLING_BUILD_AST_INTROSPECTION as an
-  # internal hidden setting to override.
-  # When the processing is disabled, a trivial/empty JSON
-  # file is generated by clang-ast-dump and generate_cxx_src_locs.py
-  # generates the same API, but with a trivial implementation.
-  option(CLANG_TOOLING_BUILD_AST_INTROSPECTION "Enable AST introspection" TRUE)
-
-  set(skip_expensive_processing $<OR:$<CONFIG:Debug>,$<NOT:$<BOOL:${CLANG_TOOLING_BUILD_AST_INTROSPECTION}>>>)
-
-  file(GENERATE OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/ASTTU.cpp
-    CONTENT "
-#include <clang/AST/AST.h>
-")
-
-  set(implicitDirs)
-  foreach(implicitDir ${CMAKE_CXX_IMPLICIT_INCLUDE_DIRECTORIES})
-    list(APPEND implicitDirs -I ${implicitDir})
-  endforeach()
-
-  add_custom_command(
-      COMMENT Generate ASTNodeAPI.json
-      OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/ASTNodeAPI.json
-      DEPENDS clang-ast-dump clang-resource-headers ${CMAKE_CURRENT_BINARY_DIR}/ASTTU.cpp
-      COMMAND
-      $<TARGET_FILE:clang-ast-dump>
-        # Skip this in debug mode because parsing AST.h is too slow
-        --skip-processing=${skip_expensive_processing}
-        --astheader=${CMAKE_CURRENT_BINARY_DIR}/ASTTU.cpp
-        -I ${CMAKE_BINARY_DIR}/lib/clang/${CLANG_VERSION}/include
-        -I ${CMAKE_SOURCE_DIR}/../clang/include
-        -I ${CMAKE_BINARY_DIR}/tools/clang/include
-        -I ${CMAKE_BINARY_DIR}/include
-        -I ${CMAKE_SOURCE_DIR}/include
-        ${implicitDirs}
-        --json-output-path ${CMAKE_CURRENT_BINARY_DIR}/ASTNodeAPI.json
-  )
-
-  add_custom_target(run-ast-api-dump-tool
-      DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/ASTNodeAPI.json
-  )
-
-  add_custom_command(
-      COMMENT Generate NodeIntrospection.inc
-      OUTPUT ${BINARY_INCLUDE_DIR}/NodeIntrospection.inc
-      DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/ASTNodeAPI.json
-        ${CMAKE_CURRENT_SOURCE_DIR}/DumpTool/generate_cxx_src_locs.py
-      COMMAND
-      ${Python3_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/DumpTool/generate_cxx_src_locs.py
-        --json-input-path ${CMAKE_CURRENT_BINARY_DIR}/ASTNodeAPI.json
-        --output-file NodeIntrospection.inc
-        --empty-implementation ${skip_expensive_processing}
-      COMMAND
-      ${CMAKE_COMMAND} -E copy_if_
diff erent
-        ${CMAKE_CURRENT_BINARY_DIR}/NodeIntrospection.inc
-        ${BINARY_INCLUDE_DIR}/NodeIntrospection.inc
-  )
-
-  add_custom_target(run-ast-api-generate-tool
-      DEPENDS
-      ${BINARY_INCLUDE_DIR}/NodeIntrospection.inc
-  )
-endif()
-
 add_clang_library(clangTooling
   AllTUsExecution.cpp
   ArgumentsAdjusters.cpp
@@ -129,8 +27,6 @@ add_clang_library(clangTooling
   Refactoring.cpp
   RefactoringCallbacks.cpp
   StandaloneExecution.cpp
-  NodeIntrospection.cpp
-  ${BINARY_INCLUDE_DIR}/NodeIntrospection.inc
   Tooling.cpp
 
   DEPENDS

diff  --git a/clang/lib/Tooling/DumpTool/APIData.h b/clang/lib/Tooling/DumpTool/APIData.h
deleted file mode 100644
index 0ec53f6e7dc3..000000000000
--- a/clang/lib/Tooling/DumpTool/APIData.h
+++ /dev/null
@@ -1,32 +0,0 @@
-//===- APIData.h ---------------------------------------------*- 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_LIB_TOOLING_DUMPTOOL_APIDATA_H
-#define LLVM_CLANG_LIB_TOOLING_DUMPTOOL_APIDATA_H
-
-#include <string>
-#include <vector>
-
-namespace clang {
-namespace tooling {
-
-struct ClassData {
-
-  bool isEmpty() const {
-    return ASTClassLocations.empty() && ASTClassRanges.empty();
-  }
-
-  std::vector<std::string> ASTClassLocations;
-  std::vector<std::string> ASTClassRanges;
-  // TODO: Extend this with locations available via typelocs etc.
-};
-
-} // namespace tooling
-} // namespace clang
-
-#endif

diff  --git a/clang/lib/Tooling/DumpTool/ASTSrcLocProcessor.cpp b/clang/lib/Tooling/DumpTool/ASTSrcLocProcessor.cpp
deleted file mode 100644
index ff279d9425d8..000000000000
--- a/clang/lib/Tooling/DumpTool/ASTSrcLocProcessor.cpp
+++ /dev/null
@@ -1,170 +0,0 @@
-//===- ASTSrcLocProcessor.cpp --------------------------------*- 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
-//
-//===----------------------------------------------------------------------===//
-
-#include "ASTSrcLocProcessor.h"
-
-#include "clang/Frontend/CompilerInstance.h"
-#include "llvm/Support/JSON.h"
-
-using namespace clang::tooling;
-using namespace llvm;
-using namespace clang::ast_matchers;
-
-ASTSrcLocProcessor::ASTSrcLocProcessor(StringRef JsonPath)
-    : JsonPath(JsonPath) {
-
-  MatchFinder::MatchFinderOptions FinderOptions;
-
-  Finder = std::make_unique<MatchFinder>(std::move(FinderOptions));
-  Finder->addMatcher(
-      cxxRecordDecl(
-          isDefinition(),
-          isSameOrDerivedFrom(
-              // TODO: Extend this with other clades
-              namedDecl(hasName("clang::Stmt")).bind("nodeClade")),
-          optionally(isDerivedFrom(cxxRecordDecl().bind("derivedFrom"))))
-          .bind("className"),
-      this);
-}
-
-std::unique_ptr<clang::ASTConsumer>
-ASTSrcLocProcessor::createASTConsumer(clang::CompilerInstance &Compiler,
-                                      StringRef File) {
-  return Finder->newASTConsumer();
-}
-
-llvm::json::Object toJSON(llvm::StringMap<std::vector<StringRef>> const &Obj) {
-  using llvm::json::toJSON;
-
-  llvm::json::Object JsonObj;
-  for (const auto &Item : Obj) {
-    JsonObj[Item.first()] = Item.second;
-  }
-  return JsonObj;
-}
-
-llvm::json::Object toJSON(llvm::StringMap<StringRef> const &Obj) {
-  using llvm::json::toJSON;
-
-  llvm::json::Object JsonObj;
-  for (const auto &Item : Obj) {
-    JsonObj[Item.first()] = Item.second;
-  }
-  return JsonObj;
-}
-
-llvm::json::Object toJSON(ClassData const &Obj) {
-  llvm::json::Object JsonObj;
-
-  if (!Obj.ASTClassLocations.empty())
-    JsonObj["sourceLocations"] = Obj.ASTClassLocations;
-  if (!Obj.ASTClassRanges.empty())
-    JsonObj["sourceRanges"] = Obj.ASTClassRanges;
-  return JsonObj;
-}
-
-llvm::json::Object toJSON(llvm::StringMap<ClassData> const &Obj) {
-  using llvm::json::toJSON;
-
-  llvm::json::Object JsonObj;
-  for (const auto &Item : Obj) {
-    if (!Item.second.isEmpty())
-      JsonObj[Item.first()] = ::toJSON(Item.second);
-  }
-  return JsonObj;
-}
-
-void WriteJSON(std::string JsonPath,
-               llvm::StringMap<StringRef> const &ClassInheritance,
-               llvm::StringMap<std::vector<StringRef>> const &ClassesInClade,
-               llvm::StringMap<ClassData> const &ClassEntries) {
-  llvm::json::Object JsonObj;
-
-  using llvm::json::toJSON;
-
-  JsonObj["classInheritance"] = ::toJSON(ClassInheritance);
-  JsonObj["classesInClade"] = ::toJSON(ClassesInClade);
-  JsonObj["classEntries"] = ::toJSON(ClassEntries);
-
-  std::error_code EC;
-  llvm::raw_fd_ostream JsonOut(JsonPath, EC, llvm::sys::fs::F_Text);
-  if (EC)
-    return;
-
-  llvm::json::Value JsonVal(std::move(JsonObj));
-  JsonOut << formatv("{0:2}", JsonVal);
-}
-
-void ASTSrcLocProcessor::generate() {
-  WriteJSON(JsonPath, ClassInheritance, ClassesInClade, ClassEntries);
-}
-
-std::vector<std::string>
-CaptureMethods(std::string TypeString, const clang::CXXRecordDecl *ASTClass,
-               const MatchFinder::MatchResult &Result) {
-
-  auto publicAccessor = [](auto... InnerMatcher) {
-    return cxxMethodDecl(isPublic(), parameterCountIs(0), isConst(),
-                         InnerMatcher...);
-  };
-
-  auto BoundNodesVec =
-      match(findAll(publicAccessor(ofClass(equalsNode(ASTClass)),
-                                   returns(asString(TypeString)))
-                        .bind("classMethod")),
-            *ASTClass, *Result.Context);
-
-  std::vector<std::string> Methods;
-  for (const auto &BN : BoundNodesVec) {
-    if (const auto *Node = BN.getNodeAs<clang::NamedDecl>("classMethod")) {
-      // Only record the getBeginLoc etc on Stmt etc, because it will call
-      // more-derived implementations pseudo-virtually.
-      if ((ASTClass->getName() != "Stmt" && ASTClass->getName() != "Decl") &&
-          (Node->getName() == "getBeginLoc" || Node->getName() == "getEndLoc" ||
-           Node->getName() == "getSourceRange")) {
-        continue;
-      }
-      // Only record the getExprLoc on Expr, because it will call
-      // more-derived implementations pseudo-virtually.
-      if (ASTClass->getName() != "Expr" && Node->getName() == "getExprLoc") {
-        continue;
-      }
-      Methods.push_back(Node->getName().str());
-    }
-  }
-  return Methods;
-}
-
-void ASTSrcLocProcessor::run(const MatchFinder::MatchResult &Result) {
-
-  if (const auto *ASTClass =
-          Result.Nodes.getNodeAs<clang::CXXRecordDecl>("className")) {
-
-    StringRef ClassName = ASTClass->getName();
-
-    ClassData CD;
-
-    const auto *NodeClade =
-        Result.Nodes.getNodeAs<clang::CXXRecordDecl>("nodeClade");
-    StringRef CladeName = NodeClade->getName();
-
-    if (const auto *DerivedFrom =
-            Result.Nodes.getNodeAs<clang::CXXRecordDecl>("derivedFrom"))
-      ClassInheritance[ClassName] = DerivedFrom->getName();
-
-    CD.ASTClassLocations =
-        CaptureMethods("class clang::SourceLocation", ASTClass, Result);
-    CD.ASTClassRanges =
-        CaptureMethods("class clang::SourceRange", ASTClass, Result);
-
-    if (!CD.isEmpty()) {
-      ClassEntries[ClassName] = CD;
-      ClassesInClade[CladeName].push_back(ClassName);
-    }
-  }
-}

diff  --git a/clang/lib/Tooling/DumpTool/ASTSrcLocProcessor.h b/clang/lib/Tooling/DumpTool/ASTSrcLocProcessor.h
deleted file mode 100644
index 00994758e03c..000000000000
--- a/clang/lib/Tooling/DumpTool/ASTSrcLocProcessor.h
+++ /dev/null
@@ -1,48 +0,0 @@
-//===- ASTSrcLocProcessor.h ---------------------------------*- 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_TOOLING_DUMPTOOL_ASTSRCLOCPROCESSOR_H
-#define LLVM_CLANG_TOOLING_DUMPTOOL_ASTSRCLOCPROCESSOR_H
-
-#include "APIData.h"
-#include "clang/ASTMatchers/ASTMatchFinder.h"
-#include "llvm/ADT/StringRef.h"
-#include <memory>
-#include <string>
-#include <vector>
-
-namespace clang {
-
-class CompilerInstance;
-
-namespace tooling {
-
-class ASTSrcLocProcessor : public ast_matchers::MatchFinder::MatchCallback {
-public:
-  explicit ASTSrcLocProcessor(StringRef JsonPath);
-
-  std::unique_ptr<ASTConsumer> createASTConsumer(CompilerInstance &Compiler,
-                                                 StringRef File);
-
-  void generate();
-
-private:
-  void run(const ast_matchers::MatchFinder::MatchResult &Result) override;
-
-  llvm::StringMap<StringRef> ClassInheritance;
-  llvm::StringMap<std::vector<StringRef>> ClassesInClade;
-  llvm::StringMap<ClassData> ClassEntries;
-
-  std::string JsonPath;
-  std::unique_ptr<clang::ast_matchers::MatchFinder> Finder;
-};
-
-} // namespace tooling
-} // namespace clang
-
-#endif

diff  --git a/clang/lib/Tooling/DumpTool/CMakeLists.txt b/clang/lib/Tooling/DumpTool/CMakeLists.txt
deleted file mode 100644
index 712985bf7e2b..000000000000
--- a/clang/lib/Tooling/DumpTool/CMakeLists.txt
+++ /dev/null
@@ -1,16 +0,0 @@
-
-add_clang_executable(clang-ast-dump
-  ASTSrcLocProcessor.cpp
-  ClangSrcLocDump.cpp
-)
-
-target_link_libraries(clang-ast-dump
-  PRIVATE
-  clangAST
-  clangASTMatchers
-  clangBasic
-  clangDriver
-  clangFrontend
-  clangSerialization
-  clangToolingCore
-)

diff  --git a/clang/lib/Tooling/DumpTool/ClangSrcLocDump.cpp b/clang/lib/Tooling/DumpTool/ClangSrcLocDump.cpp
deleted file mode 100644
index 6615f865221d..000000000000
--- a/clang/lib/Tooling/DumpTool/ClangSrcLocDump.cpp
+++ /dev/null
@@ -1,140 +0,0 @@
-//===- ClangSrcLocDump.cpp ------------------------------------*- 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
-//
-//===----------------------------------------------------------------------===//
-
-#include "clang/Basic/Diagnostic.h"
-#include "clang/Driver/Compilation.h"
-#include "clang/Driver/Driver.h"
-#include "clang/Driver/Job.h"
-#include "clang/Driver/Options.h"
-#include "clang/Driver/Tool.h"
-#include "clang/Frontend/CompilerInstance.h"
-#include "clang/Frontend/TextDiagnosticPrinter.h"
-#include "clang/Tooling/Tooling.h"
-#include "llvm/Option/ArgList.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/Host.h"
-#include "llvm/Support/JSON.h"
-
-#include "ASTSrcLocProcessor.h"
-
-using namespace clang::tooling;
-using namespace clang;
-using namespace llvm;
-
-static cl::list<std::string> IncludeDirectories(
-    "I", cl::desc("Include directories to use while compiling"),
-    cl::value_desc("directory"), cl::Required, cl::OneOrMore, cl::Prefix);
-
-static cl::opt<std::string>
-    AstHeaderFile("astheader", cl::desc("AST header to parse API from"),
-                  cl::Required, cl::value_desc("AST header file"));
-
-static cl::opt<bool>
-    SkipProcessing("skip-processing",
-                   cl::desc("Avoid processing the AST header file"),
-                   cl::Required, cl::value_desc("bool"));
-
-static cl::opt<std::string> JsonOutputPath("json-output-path",
-                                           cl::desc("json output path"),
-                                           cl::Required,
-                                           cl::value_desc("path"));
-
-class ASTSrcLocGenerationAction : public clang::ASTFrontendAction {
-public:
-  ASTSrcLocGenerationAction() : Processor(JsonOutputPath) {}
-
-  ~ASTSrcLocGenerationAction() { Processor.generate(); }
-
-  std::unique_ptr<clang::ASTConsumer>
-  CreateASTConsumer(clang::CompilerInstance &Compiler,
-                    llvm::StringRef File) override {
-    return Processor.createASTConsumer(Compiler, File);
-  }
-
-private:
-  ASTSrcLocProcessor Processor;
-};
-
-int main(int argc, const char **argv) {
-
-  cl::ParseCommandLineOptions(argc, argv);
-
-  if (SkipProcessing) {
-    std::error_code EC;
-    llvm::raw_fd_ostream JsonOut(JsonOutputPath, EC, llvm::sys::fs::F_Text);
-    if (EC)
-      return 1;
-    JsonOut << formatv("{0:2}", llvm::json::Value(llvm::json::Object()));
-    return 0;
-  }
-
-  std::vector<std::string> Args;
-  Args.push_back("-cc1");
-
-  llvm::transform(IncludeDirectories, std::back_inserter(Args),
-                  [](const std::string &IncDir) { return "-I" + IncDir; });
-
-  Args.push_back("-fsyntax-only");
-  Args.push_back(AstHeaderFile);
-
-  std::vector<const char *> Argv(Args.size(), nullptr);
-  llvm::transform(Args, Argv.begin(),
-                  [](const std::string &Arg) { return Arg.c_str(); });
-
-  IntrusiveRefCntPtr<DiagnosticOptions> DiagOpts = new DiagnosticOptions();
-  unsigned MissingArgIndex, MissingArgCount;
-  auto Opts = driver::getDriverOptTable();
-  auto ParsedArgs = Opts.ParseArgs(llvm::makeArrayRef(Argv).slice(1),
-                                   MissingArgIndex, MissingArgCount);
-  ParseDiagnosticArgs(*DiagOpts, ParsedArgs);
-  TextDiagnosticPrinter DiagnosticPrinter(llvm::errs(), &*DiagOpts);
-  DiagnosticsEngine Diagnostics(
-      IntrusiveRefCntPtr<DiagnosticIDs>(new DiagnosticIDs()), &*DiagOpts,
-      &DiagnosticPrinter, false);
-
-  FileManager Files(FileSystemOptions(), vfs::getRealFileSystem());
-
-  auto Driver = std::make_unique<driver::Driver>(
-      "clang", llvm::sys::getDefaultTargetTriple(), Diagnostics,
-      "ast-api-dump-tool", &Files.getVirtualFileSystem());
-
-  std::unique_ptr<clang::driver::Compilation> Comp(
-      Driver->BuildCompilation(llvm::makeArrayRef(Argv)));
-  if (!Comp)
-    return 1;
-
-  const auto &Jobs = Comp->getJobs();
-  if (Jobs.size() != 1 || !isa<driver::Command>(*Jobs.begin())) {
-    SmallString<256> error_msg;
-    llvm::raw_svector_ostream error_stream(error_msg);
-    Jobs.Print(error_stream, "; ", true);
-    return 1;
-  }
-
-  const auto &Cmd = cast<driver::Command>(*Jobs.begin());
-  const llvm::opt::ArgStringList &CC1Args = Cmd.getArguments();
-
-  auto Invocation = std::make_unique<CompilerInvocation>();
-  CompilerInvocation::CreateFromArgs(*Invocation, CC1Args, Diagnostics);
-
-  CompilerInstance Compiler(std::make_shared<clang::PCHContainerOperations>());
-  Compiler.setInvocation(std::move(Invocation));
-
-  Compiler.createDiagnostics(&DiagnosticPrinter, false);
-  if (!Compiler.hasDiagnostics())
-    return 1;
-
-  Compiler.createSourceManager(Files);
-
-  ASTSrcLocGenerationAction ScopedToolAction;
-  Compiler.ExecuteAction(ScopedToolAction);
-
-  Files.clearStatCache();
-
-  return 0;
-}

diff  --git a/clang/lib/Tooling/DumpTool/generate_cxx_src_locs.py b/clang/lib/Tooling/DumpTool/generate_cxx_src_locs.py
deleted file mode 100755
index fd02e4c46172..000000000000
--- a/clang/lib/Tooling/DumpTool/generate_cxx_src_locs.py
+++ /dev/null
@@ -1,201 +0,0 @@
-#!/usr/bin/env python3
-# -*- coding: utf-8 -*-
-
-import os
-import sys
-import json
-
-import argparse
-
-class Generator(object):
-
-    implementationContent = ''
-
-    def GeneratePrologue(self):
-
-        self.implementationContent += \
-            """
-/*===- Generated file -------------------------------------------*- C++ -*-===*\
-|*                                                                            *|
-|* Introspection of available AST node SourceLocations                        *|
-|*                                                                            *|
-|* Automatically generated file, do not edit!                                 *|
-|*                                                                            *|
-\*===----------------------------------------------------------------------===*/
-
-namespace clang {
-namespace tooling {
-
-using LocationAndString = SourceLocationMap::value_type;
-using RangeAndString = SourceRangeMap::value_type;
-"""
-
-    def GenerateBaseGetLocationsDeclaration(self, CladeName):
-        self.implementationContent += \
-            """
-void GetLocationsImpl(std::shared_ptr<LocationCall> const& Prefix,
-    clang::{0} const *Object, SourceLocationMap &Locs,
-    SourceRangeMap &Rngs);
-""".format(CladeName)
-
-    def GenerateSrcLocMethod(self, ClassName, ClassData):
-
-        self.implementationContent += \
-            """
-static void GetLocations{0}(std::shared_ptr<LocationCall> const& Prefix,
-    clang::{0} const &Object,
-    SourceLocationMap &Locs, SourceRangeMap &Rngs)
-{{
-""".format(ClassName)
-
-        if 'sourceLocations' in ClassData:
-            for locName in ClassData['sourceLocations']:
-                self.implementationContent += \
-                    """
-  Locs.insert(LocationAndString(Object.{0}(),
-    std::make_shared<LocationCall>(Prefix, "{0}")));
-""".format(locName)
-
-            self.implementationContent += '\n'
-
-        if 'sourceRanges' in ClassData:
-            for rngName in ClassData['sourceRanges']:
-                self.implementationContent += \
-                    """
-  Rngs.insert(RangeAndString(Object.{0}(),
-    std::make_shared<LocationCall>(Prefix, "{0}")));
-""".format(rngName)
-
-            self.implementationContent += '\n'
-
-        self.implementationContent += '}\n'
-
-    def GenerateFiles(self, OutputFile):
-        with open(os.path.join(os.getcwd(),
-                  OutputFile), 'w') as f:
-            f.write(self.implementationContent)
-
-    def GenerateBaseGetLocationsFunction(self, ASTClassNames, CladeName):
-
-        MethodReturnType = 'NodeLocationAccessors'
-
-        Signature = \
-            'GetLocations(clang::{0} const *Object)'.format(CladeName)
-        ImplSignature = \
-            """
-GetLocationsImpl(std::shared_ptr<LocationCall> const& Prefix,
-    clang::{0} const *Object, SourceLocationMap &Locs,
-    SourceRangeMap &Rngs)
-""".format(CladeName)
-
-        self.implementationContent += \
-            'void {0} {{ GetLocations{1}(Prefix, *Object, Locs, Rngs);'.format(
-                ImplSignature,
-                CladeName)
-
-        for ASTClassName in ASTClassNames:
-            if ASTClassName != CladeName:
-                self.implementationContent += \
-                    """
-if (auto Derived = llvm::dyn_cast<clang::{0}>(Object)) {{
-  GetLocations{0}(Prefix, *Derived, Locs, Rngs);
-}}
-""".format(ASTClassName)
-
-        self.implementationContent += '}'
-
-        self.implementationContent += \
-            """
-{0} NodeIntrospection::{1} {{
-  NodeLocationAccessors Result;
-  std::shared_ptr<LocationCall> Prefix;
-
-  GetLocationsImpl(Prefix, Object, Result.LocationAccessors,
-                   Result.RangeAccessors);
-""".format(MethodReturnType,
-                Signature)
-
-        self.implementationContent += 'return Result; }'
-
-    def GenerateDynNodeVisitor(self, CladeNames):
-        MethodReturnType = 'NodeLocationAccessors'
-
-        Signature = \
-            'GetLocations(clang::DynTypedNode const &Node)'
-
-        self.implementationContent += MethodReturnType \
-            + ' NodeIntrospection::' + Signature + '{'
-
-        for CladeName in CladeNames:
-            self.implementationContent += \
-                """
-    if (const auto *N = Node.get<{0}>())
-      return GetLocations(const_cast<{0} *>(N));""".format(CladeName)
-
-        self.implementationContent += '\nreturn {}; }'
-
-    def GenerateEpilogue(self):
-
-        self.implementationContent += '''
-  }
-}
-'''
-
-def main():
-
-    parser = argparse.ArgumentParser()
-    parser.add_argument('--json-input-path',
-                      help='Read API description from FILE', metavar='FILE')
-    parser.add_argument('--output-file', help='Generate output in FILEPATH',
-                      metavar='FILEPATH')
-    parser.add_argument('--empty-implementation',
-                      help='Generate empty implementation',
-                      action="store", type=int)
-
-    options = parser.parse_args()
-
-    if options.empty_implementation:
-        with open(os.path.join(os.getcwd(),
-                  options.output_file), 'w') as f:
-            f.write("""
-namespace clang {
-namespace tooling {
-
-NodeLocationAccessors NodeIntrospection::GetLocations(clang::Stmt const *) {
-  return {};
-}
-NodeLocationAccessors
-NodeIntrospection::GetLocations(clang::DynTypedNode const &) {
-  return {};
-}
-} // namespace tooling
-} // namespace clang
-    """)
-        sys.exit(0)
-
-    with open(options.json_input_path) as f:
-        jsonData = json.load(f)
-
-    g = Generator()
-
-    g.GeneratePrologue()
-
-    if 'classesInClade' in jsonData:
-        for (CladeName, ClassNameData) in jsonData['classesInClade'].items():
-            g.GenerateBaseGetLocationsDeclaration(CladeName)
-
-        for (ClassName, ClassAccessors) in jsonData['classEntries'].items():
-            if ClassAccessors:
-                g.GenerateSrcLocMethod(ClassName, ClassAccessors)
-
-        for (CladeName, ClassNameData) in jsonData['classesInClade'].items():
-            g.GenerateBaseGetLocationsFunction(ClassNameData, CladeName)
-
-        g.GenerateDynNodeVisitor(jsonData['classesInClade'].keys())
-
-    g.GenerateEpilogue()
-
-    g.GenerateFiles(options.output_file)
-
-if __name__ == '__main__':
-    main()

diff  --git a/clang/lib/Tooling/NodeIntrospection.cpp b/clang/lib/Tooling/NodeIntrospection.cpp
deleted file mode 100644
index 89e8c19c6ba8..000000000000
--- a/clang/lib/Tooling/NodeIntrospection.cpp
+++ /dev/null
@@ -1,61 +0,0 @@
-//===- NodeIntrospection.h -----------------------------------*- 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
-//
-//===----------------------------------------------------------------------===//
-//
-//  This file contains the implementation of the NodeIntrospection.
-//
-//===----------------------------------------------------------------------===//
-
-#include "clang/Tooling/NodeIntrospection.h"
-
-#include "clang/AST/AST.h"
-
-namespace clang {
-
-namespace tooling {
-
-std::string LocationCallFormatterCpp::format(LocationCall *Call) {
-  SmallVector<LocationCall *> vec;
-  while (Call) {
-    vec.push_back(Call);
-    Call = Call->on();
-  }
-  std::string result;
-  for (auto *VecCall : llvm::reverse(llvm::makeArrayRef(vec).drop_front())) {
-    result +=
-        (VecCall->name() + "()" + (VecCall->returnsPointer() ? "->" : "."))
-            .str();
-  }
-  result += (vec.back()->name() + "()").str();
-  return result;
-}
-
-namespace internal {
-bool RangeLessThan::operator()(
-    std::pair<SourceRange, std::shared_ptr<LocationCall>> const &LHS,
-    std::pair<SourceRange, std::shared_ptr<LocationCall>> const &RHS) const {
-  if (!LHS.first.isValid() || !RHS.first.isValid())
-    return false;
-
-  if (LHS.first.getBegin() < RHS.first.getBegin())
-    return true;
-  else if (LHS.first.getBegin() != RHS.first.getBegin())
-    return false;
-
-  if (LHS.first.getEnd() < RHS.first.getEnd())
-    return true;
-  else if (LHS.first.getEnd() != RHS.first.getEnd())
-    return false;
-
-  return LHS.second->name() < RHS.second->name();
-}
-} // namespace internal
-
-} // namespace tooling
-} // namespace clang
-
-#include "clang/Tooling/NodeIntrospection.inc"

diff  --git a/clang/unittests/CMakeLists.txt b/clang/unittests/CMakeLists.txt
index 4e0873955700..bb635dfff991 100644
--- a/clang/unittests/CMakeLists.txt
+++ b/clang/unittests/CMakeLists.txt
@@ -29,7 +29,6 @@ add_subdirectory(ASTMatchers)
 add_subdirectory(AST)
 add_subdirectory(CrossTU)
 add_subdirectory(Tooling)
-add_subdirectory(Introspection)
 add_subdirectory(Format)
 add_subdirectory(Frontend)
 add_subdirectory(Rewrite)

diff  --git a/clang/unittests/Introspection/CMakeLists.txt b/clang/unittests/Introspection/CMakeLists.txt
deleted file mode 100644
index 3dd8aec56b76..000000000000
--- a/clang/unittests/Introspection/CMakeLists.txt
+++ /dev/null
@@ -1,25 +0,0 @@
-set(LLVM_LINK_COMPONENTS
-  FrontendOpenMP
-  Support
-  )
-
-add_clang_unittest(IntrospectionTests
-  IntrospectionTest.cpp
-  )
-
-clang_target_link_libraries(IntrospectionTests
-  PRIVATE
-  clangAST
-  clangASTMatchers
-  clangTooling
-  clangBasic
-  clangSerialization
-  clangFrontend
-  )
-target_compile_definitions(IntrospectionTests PRIVATE
-  SKIP_INTROSPECTION_GENERATION=$<OR:$<CONFIG:Debug>,$<NOT:$<BOOL:${CLANG_TOOLING_BUILD_AST_INTROSPECTION}>>>
-)
-target_link_libraries(IntrospectionTests
-  PRIVATE
-  LLVMTestingSupport
-)

diff  --git a/clang/unittests/Introspection/IntrospectionTest.cpp b/clang/unittests/Introspection/IntrospectionTest.cpp
deleted file mode 100644
index ee9ccdf8eacd..000000000000
--- a/clang/unittests/Introspection/IntrospectionTest.cpp
+++ /dev/null
@@ -1,100 +0,0 @@
-//===- unittest/Introspection/IntrospectionTest.cpp ----------*- 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
-//
-//===----------------------------------------------------------------------===//
-//
-// Tests for AST location API introspection.
-//
-//===----------------------------------------------------------------------===//
-
-#include "clang/AST/ASTContext.h"
-#include "clang/ASTMatchers/ASTMatchFinder.h"
-#include "clang/ASTMatchers/ASTMatchers.h"
-#include "clang/Tooling/NodeIntrospection.h"
-#include "clang/Tooling/Tooling.h"
-#include "gmock/gmock-matchers.h"
-#include "gmock/gmock.h"
-#include "gtest/gtest.h"
-
-using namespace clang;
-using namespace clang::ast_matchers;
-using namespace clang::tooling;
-
-using ::testing::Pair;
-using ::testing::UnorderedElementsAre;
-
-#if SKIP_INTROSPECTION_GENERATION
-
-TEST(Introspection, NonFatalAPI) {
-  auto AST = buildASTFromCode("void foo() {} void bar() { foo(); }", "foo.cpp",
-                              std::make_shared<PCHContainerOperations>());
-  auto &Ctx = AST->getASTContext();
-  auto &TU = *Ctx.getTranslationUnitDecl();
-
-  auto BoundNodes = ast_matchers::match(
-      decl(hasDescendant(
-          callExpr(callee(functionDecl(hasName("foo")))).bind("fooCall"))),
-      TU, Ctx);
-
-  EXPECT_EQ(BoundNodes.size(), 1u);
-
-  auto *FooCall = BoundNodes[0].getNodeAs<CallExpr>("fooCall");
-
-  auto result = NodeIntrospection::GetLocations(FooCall);
-
-  EXPECT_EQ(result.LocationAccessors.size(), 0u);
-  EXPECT_EQ(result.RangeAccessors.size(), 0u);
-}
-
-#else
-
-TEST(Introspection, SourceLocations) {
-  auto AST = buildASTFromCode("void foo() {} void bar() { foo(); }", "foo.cpp",
-                              std::make_shared<PCHContainerOperations>());
-  auto &Ctx = AST->getASTContext();
-  auto &TU = *Ctx.getTranslationUnitDecl();
-
-  auto BoundNodes = ast_matchers::match(
-      decl(hasDescendant(
-          callExpr(callee(functionDecl(hasName("foo")))).bind("fooCall"))),
-      TU, Ctx);
-
-  EXPECT_EQ(BoundNodes.size(), 1u);
-
-  auto *FooCall = BoundNodes[0].getNodeAs<CallExpr>("fooCall");
-
-  auto result = NodeIntrospection::GetLocations(FooCall);
-
-  std::map<std::string, SourceLocation> ExpectedLocations;
-  llvm::transform(result.LocationAccessors,
-                  std::inserter(ExpectedLocations, ExpectedLocations.end()),
-                  [](const auto &Accessor) {
-                    return std::make_pair(
-                        LocationCallFormatterCpp::format(Accessor.second.get()),
-                        Accessor.first);
-                  });
-
-  EXPECT_THAT(
-      ExpectedLocations,
-      UnorderedElementsAre(Pair("getBeginLoc()", FooCall->getBeginLoc()),
-                           Pair("getEndLoc()", FooCall->getEndLoc()),
-                           Pair("getExprLoc()", FooCall->getExprLoc()),
-                           Pair("getRParenLoc()", FooCall->getRParenLoc())));
-
-  std::map<std::string, SourceRange> ExpectedRanges;
-  llvm::transform(result.RangeAccessors,
-                  std::inserter(ExpectedRanges, ExpectedRanges.end()),
-                  [](const auto &Accessor) {
-                    return std::make_pair(
-                        LocationCallFormatterCpp::format(Accessor.second.get()),
-                        Accessor.first);
-                  });
-
-  EXPECT_THAT(ExpectedRanges,
-              UnorderedElementsAre(
-                  Pair("getSourceRange()", FooCall->getSourceRange())));
-}
-#endif

diff  --git a/llvm/utils/gn/secondary/clang/lib/Tooling/BUILD.gn b/llvm/utils/gn/secondary/clang/lib/Tooling/BUILD.gn
index 3e9cf28aa346..5bc4241e474c 100644
--- a/llvm/utils/gn/secondary/clang/lib/Tooling/BUILD.gn
+++ b/llvm/utils/gn/secondary/clang/lib/Tooling/BUILD.gn
@@ -1,19 +1,7 @@
-# FIXME: The cmake build runs DumpTool:clang-ast-dump to generate a json
-# file and feeds it into this step in non-debug builds or if an option is set.
-action("node_introspection_inc") {
-  script = "DumpTool/generate_cxx_src_locs.py"
-  outputs = [ "$target_gen_dir/clang/Tooling/NodeIntrospection.inc" ]
-  args = [
-    "--empty-implementation=1",
-    "--output-file=" + rebase_path(outputs[0], root_build_dir),
-  ]
-}
-
 static_library("Tooling") {
   output_name = "clangTooling"
   configs += [ "//llvm/utils/gn/build:clang_code" ]
   deps = [
-    ":node_introspection_inc",
     "//clang/include/clang/Driver:Options",
     "//clang/lib/AST",
     "//clang/lib/ASTMatchers",
@@ -25,7 +13,6 @@ static_library("Tooling") {
     "//clang/lib/Rewrite",
     "//clang/lib/Tooling/Core",
   ]
-  include_dirs = [ target_gen_dir ]
   sources = [
     "AllTUsExecution.cpp",
     "ArgumentsAdjusters.cpp",
@@ -38,7 +25,6 @@ static_library("Tooling") {
     "GuessTargetAndModeCompilationDatabase.cpp",
     "InterpolatingCompilationDatabase.cpp",
     "JSONCompilationDatabase.cpp",
-    "NodeIntrospection.cpp",
     "Refactoring.cpp",
     "RefactoringCallbacks.cpp",
     "StandaloneExecution.cpp",

diff  --git a/llvm/utils/gn/secondary/clang/lib/Tooling/DumpTool/BUILD.gn b/llvm/utils/gn/secondary/clang/lib/Tooling/DumpTool/BUILD.gn
deleted file mode 100644
index 7d9d2113d459..000000000000
--- a/llvm/utils/gn/secondary/clang/lib/Tooling/DumpTool/BUILD.gn
+++ /dev/null
@@ -1,20 +0,0 @@
-executable("clang-ast-dump") {
-  configs += [ "//llvm/utils/gn/build:clang_code" ]
-  deps = [
-    "//clang/lib/AST",
-    "//clang/lib/ASTMatchers",
-    "//clang/lib/Basic",
-    "//clang/lib/Driver",
-    "//clang/lib/Format",
-    "//clang/lib/Frontend",
-    "//clang/lib/Lex",
-    "//clang/lib/Rewrite",
-    "//clang/lib/Serialization",
-    "//clang/lib/Tooling/Core",
-  ]
-
-  sources = [
-    "ASTSrcLocProcessor.cpp",
-    "ClangSrcLocDump.cpp",
-  ]
-}

diff  --git a/llvm/utils/gn/secondary/clang/unittests/BUILD.gn b/llvm/utils/gn/secondary/clang/unittests/BUILD.gn
index 1b8904c1502e..23f5d2dfac85 100644
--- a/llvm/utils/gn/secondary/clang/unittests/BUILD.gn
+++ b/llvm/utils/gn/secondary/clang/unittests/BUILD.gn
@@ -12,7 +12,6 @@ group("unittests") {
     "Format:FormatTests",
     "Frontend:FrontendTests",
     "Index:IndexTests",
-    "Introspection:IntrospectionTests",
     "Lex:LexTests",
     "Rename:ClangRenameTests",
     "Rewrite:RewriteTests",

diff  --git a/llvm/utils/gn/secondary/clang/unittests/Introspection/BUILD.gn b/llvm/utils/gn/secondary/clang/unittests/Introspection/BUILD.gn
deleted file mode 100644
index d42138c68c0d..000000000000
--- a/llvm/utils/gn/secondary/clang/unittests/Introspection/BUILD.gn
+++ /dev/null
@@ -1,20 +0,0 @@
-import("//llvm/utils/unittest/unittest.gni")
-
-unittest("IntrospectionTests") {
-  configs += [ "//llvm/utils/gn/build:clang_code" ]
-  deps = [
-    "//clang/lib/AST",
-    "//clang/lib/ASTMatchers",
-    "//clang/lib/Basic",
-    "//clang/lib/Frontend",
-    "//clang/lib/Serialization",
-    "//clang/lib/Tooling",
-    "//llvm/lib/Support",
-    "//llvm/lib/Testing/Support",
-  ]
-
-
-  defines = [ "SKIP_INTROSPECTION_GENERATION" ]
-
-  sources = [ "IntrospectionTest.cpp" ]
-}


        


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