Index: clang/include/clang/Frontend/ASTUnit.h
===================================================================
--- clang/include/clang/Frontend/ASTUnit.h
+++ clang/include/clang/Frontend/ASTUnit.h
@@ -826,7 +826,7 @@
   ///
   // FIXME: Move OnlyLocalDecls, UseBumpAllocator to setters on the ASTUnit, we
   // shouldn't need to specify them at construction time.
-  static ASTUnit *LoadFromCommandLine(
+  static std::unique_ptr<ASTUnit> LoadFromCommandLine(
       const char **ArgBegin, const char **ArgEnd,
       std::shared_ptr<PCHContainerOperations> PCHContainerOps,
       IntrusiveRefCntPtr<DiagnosticsEngine> Diags, StringRef ResourceFilesPath,
Index: clang/lib/CrossTU/CrossTranslationUnit.cpp
===================================================================
--- clang/lib/CrossTU/CrossTranslationUnit.cpp
+++ clang/lib/CrossTU/CrossTranslationUnit.cpp
@@ -609,10 +609,10 @@
   IntrusiveRefCntPtr<DiagnosticsEngine> Diags(
       new DiagnosticsEngine{DiagID, &*DiagOpts, DiagClient});
 
-  return std::unique_ptr<ASTUnit>(ASTUnit::LoadFromCommandLine(
+  return ASTUnit::LoadFromCommandLine(
       CommandLineArgs.begin(), (CommandLineArgs.end()),
       CI.getPCHContainerOperations(), Diags,
-      CI.getHeaderSearchOpts().ResourceDir));
+      CI.getHeaderSearchOpts().ResourceDir);
 }
 
 llvm::Expected<InvocationListTy>
Index: clang/lib/Frontend/ASTUnit.cpp
===================================================================
--- clang/lib/Frontend/ASTUnit.cpp
+++ clang/lib/Frontend/ASTUnit.cpp
@@ -1738,7 +1738,7 @@
   return AST;
 }
 
-ASTUnit *ASTUnit::LoadFromCommandLine(
+std::unique_ptr<ASTUnit> ASTUnit::LoadFromCommandLine(
     const char **ArgBegin, const char **ArgEnd,
     std::shared_ptr<PCHContainerOperations> PCHContainerOps,
     IntrusiveRefCntPtr<DiagnosticsEngine> Diags, StringRef ResourceFilesPath,
@@ -1841,7 +1841,7 @@
     return nullptr;
   }
 
-  return AST.release();
+  return AST;
 }
 
 bool ASTUnit::Reparse(std::shared_ptr<PCHContainerOperations> PCHContainerOps,
Index: clang/tools/libclang/CIndex.cpp
===================================================================
--- clang/tools/libclang/CIndex.cpp
+++ clang/tools/libclang/CIndex.cpp
@@ -3962,7 +3962,7 @@
       *CXXIdx, LibclangInvocationReporter::OperationKind::ParseOperation,
       options, llvm::ArrayRef(*Args), /*InvocationArgs=*/std::nullopt,
       unsaved_files);
-  std::unique_ptr<ASTUnit> Unit(ASTUnit::LoadFromCommandLine(
+  auto Unit = ASTUnit::LoadFromCommandLine(
       Args->data(), Args->data() + Args->size(),
       CXXIdx->getPCHContainerOperations(), Diags,
       CXXIdx->getClangResourcesPath(), CXXIdx->getStorePreamblesInMemory(),
@@ -3973,7 +3973,7 @@
       /*AllowPCHWithCompilerErrors=*/true, SkipFunctionBodies, SingleFileParse,
       /*UserFilesAreVolatile=*/true, ForSerialization, RetainExcludedCB,
       CXXIdx->getPCHContainerOperations()->getRawReader().getFormats().front(),
-      &ErrUnit));
+      &ErrUnit);
 
   // Early failures in LoadFromCommandLine may return with ErrUnit unset.
   if (!Unit && !ErrUnit)
Index: clang/unittests/Frontend/ASTUnitTest.cpp
===================================================================
--- clang/unittests/Frontend/ASTUnitTest.cpp
+++ clang/unittests/Frontend/ASTUnitTest.cpp
@@ -167,7 +167,7 @@
   auto PCHContainerOps = std::make_shared<PCHContainerOperations>();
   std::unique_ptr<clang::ASTUnit> ErrUnit;
 
-  ASTUnit *AST = ASTUnit::LoadFromCommandLine(
+  auto AST = ASTUnit::LoadFromCommandLine(
       &Args[0], &Args[4], PCHContainerOps, Diags, "", false, "", false,
       CaptureDiagsKind::All, std::nullopt, true, 0, TU_Complete, false, false,
       false, SkipFunctionBodiesScope::None, false, true, false, false,
@@ -194,7 +194,7 @@
   auto PCHContainerOps = std::make_shared<PCHContainerOperations>();
   std::unique_ptr<clang::ASTUnit> ErrUnit;
 
-  auto *AST = ASTUnit::LoadFromCommandLine(
+  auto AST = ASTUnit::LoadFromCommandLine(
       &Args[0], &Args[4], PCHContainerOps, Diags, "", false, "", false,
       CaptureDiagsKind::All, std::nullopt, true, 0, TU_Complete, false, false,
       false, SkipFunctionBodiesScope::None, false, true, false, false,