diff --git a/clang/lib/AST/ASTImporter.cpp b/clang/lib/AST/ASTImporter.cpp
--- a/clang/lib/AST/ASTImporter.cpp
+++ b/clang/lib/AST/ASTImporter.cpp
@@ -616,6 +616,7 @@
     ExpectedStmt VisitSourceLocExpr(SourceLocExpr *E);
     ExpectedStmt VisitVAArgExpr(VAArgExpr *E);
     ExpectedStmt VisitChooseExpr(ChooseExpr *E);
+    ExpectedStmt VisitConvertVectorExpr(ConvertVectorExpr *E);
     ExpectedStmt VisitShuffleVectorExpr(ShuffleVectorExpr *E);
     ExpectedStmt VisitGNUNullExpr(GNUNullExpr *E);
     ExpectedStmt VisitGenericSelectionExpr(GenericSelectionExpr *E);
@@ -7051,6 +7052,21 @@
                  ToRParenLoc, CondIsTrue);
 }
 
+ExpectedStmt ASTNodeImporter::VisitConvertVectorExpr(ConvertVectorExpr *E) {
+  Error Err = Error::success();
+  auto *ToSrcExpr = importChecked(Err, E->getSrcExpr());
+  auto ToRParenLoc = importChecked(Err, E->getRParenLoc());
+  auto ToBuiltinLoc = importChecked(Err, E->getBuiltinLoc());
+  auto ToType = importChecked(Err, E->getType());
+  auto *ToTSI = importChecked(Err, E->getTypeSourceInfo());
+  if (Err)
+    return std::move(Err);
+
+  return new (Importer.getToContext())
+      ConvertVectorExpr(ToSrcExpr, ToTSI, ToType, E->getValueKind(),
+                        E->getObjectKind(), ToBuiltinLoc, ToRParenLoc);
+}
+
 ExpectedStmt ASTNodeImporter::VisitShuffleVectorExpr(ShuffleVectorExpr *E) {
   Error Err = Error::success();
   auto ToRParenLoc = importChecked(Err, E->getRParenLoc());
diff --git a/clang/unittests/AST/ASTImporterTest.cpp b/clang/unittests/AST/ASTImporterTest.cpp
--- a/clang/unittests/AST/ASTImporterTest.cpp
+++ b/clang/unittests/AST/ASTImporterTest.cpp
@@ -1306,6 +1306,29 @@
             ToChooseExpr->isConditionDependent());
 }
 
+TEST_P(ASTImporterOptionSpecificTestBase, ImportConvertVectorExpr) {
+  Decl *From, *To;
+  std::tie(From, To) = getImportedDecl(
+      "typedef double v4double __attribute__((__vector_size__(32)));"
+      "typedef float  v4float  __attribute__((__vector_size__(16)));"
+      "v4float vf;"
+      "void declToImport() { (void)__builtin_convertvector(vf, v4double); }",
+      Lang_CXX03, "", Lang_CXX03);
+
+  auto ToResults =
+      match(convertVectorExpr().bind("convert"), To->getASTContext());
+  auto FromResults =
+      match(convertVectorExpr().bind("convert"), From->getASTContext());
+
+  const ConvertVectorExpr *FromConvertVectorExpr =
+      selectFirst<ConvertVectorExpr>("convert", FromResults);
+  ASSERT_TRUE(FromConvertVectorExpr);
+
+  const ConvertVectorExpr *ToConvertVectorExpr =
+      selectFirst<ConvertVectorExpr>("convert", ToResults);
+  ASSERT_TRUE(ToConvertVectorExpr);
+}
+
 TEST_P(ASTImporterOptionSpecificTestBase, ImportGenericSelectionExpr) {
   Decl *From, *To;
   std::tie(From, To) = getImportedDecl(