Index: include/vector
===================================================================
--- include/vector
+++ include/vector
@@ -290,8 +290,8 @@
 {
 protected:
     _LIBCPP_ALWAYS_INLINE __vector_base_common() {}
-    void __throw_length_error() const;
-    void __throw_out_of_range() const;
+    void __throw_length_error() const __attribute__((__noreturn__));
+    void __throw_out_of_range() const __attribute__((__noreturn__));
 };
 
 template <bool __b>