diff --git a/clang/include/clang/Basic/Attr.td b/clang/include/clang/Basic/Attr.td
--- a/clang/include/clang/Basic/Attr.td
+++ b/clang/include/clang/Basic/Attr.td
@@ -711,7 +711,7 @@
 
 def PatchableFunctionEntry
     : InheritableAttr,
-      TargetSpecificAttr<TargetArch<["aarch64", "x86", "x86_64"]>> {
+      TargetSpecificAttr<TargetArch<["aarch64", "aarch64_be", "x86", "x86_64"]>> {
   let Spellings = [GCC<"patchable_function_entry">];
   let Subjects = SubjectList<[Function, ObjCMethod]>;
   let Args = [UnsignedArgument<"Count">, DefaultIntArgument<"Offset", 0>];
diff --git a/clang/test/Sema/patchable-function-entry-attr.cpp b/clang/test/Sema/patchable-function-entry-attr.cpp
--- a/clang/test/Sema/patchable-function-entry-attr.cpp
+++ b/clang/test/Sema/patchable-function-entry-attr.cpp
@@ -1,4 +1,5 @@
 // RUN: %clang_cc1 -triple aarch64 -fsyntax-only -verify=silence %s
+// RUN: %clang_cc1 -triple aarch64_be -fsyntax-only -verify=silence %s
 // RUN: %clang_cc1 -triple i386 -fsyntax-only -verify=silence %s
 // RUN: %clang_cc1 -triple x86_64 -fsyntax-only -verify=silence %s
 // RUN: %clang_cc1 -triple ppc64le -fsyntax-only -verify %s