diff --git a/clang/lib/Frontend/Rewrite/RewriteBSC.cpp b/clang/lib/Frontend/Rewrite/RewriteBSC.cpp
index cba38098948d90ab3ccb4b3291aa7d6c4fad4e52..cc24e52ef5a5d724d4e13fa808b7e4d28763ebf2 100644
--- a/clang/lib/Frontend/Rewrite/RewriteBSC.cpp
+++ b/clang/lib/Frontend/Rewrite/RewriteBSC.cpp
@@ -783,6 +783,9 @@ void RewriteBSC::RewriteNonGenericFuncAndVar(std::vector<Decl *> &DeclList) {
       FunctionDecl *FD = cast<FunctionDecl>(D);
       // Don't print the declaration of a function of a generic class.
       // It will be printed when manipulating ClassTemplateDecl.
+      if (FD->getBuiltinID()) {
+        break;
+      }
       if (isa_and_nonnull<RecordDecl>(FD->getParent()) &&
           cast<RecordDecl>(FD->getParent())->getDescribedClassTemplate()) {
         break;
diff --git a/clang/test/BSC/Positive/Driver/rewrite-bsc/Generic/rewrite_bsc_buildin/rewrite_bsc_buildin.cbs b/clang/test/BSC/Positive/Driver/rewrite-bsc/Generic/rewrite_bsc_buildin/rewrite_bsc_buildin.cbs
new file mode 100644
index 0000000000000000000000000000000000000000..c1a3787704786a9ef29b03d579c3af3d1b41aa2e
--- /dev/null
+++ b/clang/test/BSC/Positive/Driver/rewrite-bsc/Generic/rewrite_bsc_buildin/rewrite_bsc_buildin.cbs
@@ -0,0 +1,22 @@
+// RUN: %clang -rewrite-bsc %s -o %t-rw.c
+// RUN: FileCheck --input-file=%t-rw.c %s
+// RUN: %clang %t-rw.c -o %t-rw.output
+// RUN: %t-rw.output
+
+#define ____IS(x) (((x) != ((typeof(x))0)) ? 1 : 0)
+void __bzero_const_maybe_32byte_40byte()
+{
+	if (____IS(__builtin_constant_p(1))) {} 
+}
+int main(){
+    return 0;
+}
+
+// CHECK: #define ____IS(x) (((x) != ((typeof(x))0)) ? 1 : 0)
+// CHECK: void __bzero_const_maybe_32byte_40byte()
+// CHECK-NEXT: {
+// CHECK-NEXT: 	if (____IS(__builtin_constant_p(1))) {} 
+// CHECK-NEXT: }
+// CHECK: int main(){
+// CHECK-NEXT:     return 0;
+// CHECK-NEXT: }
\ No newline at end of file