Turns out there's still some code referencing this. No harm in keeping it in a
bit longer.
> as it was planned for removal in clang 15 and we're now past the branch point
>
> See https://github.com/llvm/llvm-project/issues/19107
>
> Differential revision: https://reviews.llvm.org/D118762
This reverts commit
564f9be11c9cb8d131f48df07538fab7a19b41a7.
Removed Compiler Flags
-------------------------
-- -Wweak-template-vtables, which was deprecated in the previous release and no
- longer had any effect, has been removed.
-
New Pragmas in Clang
--------------------
"%0 has no out-of-line virtual method definitions; its vtable will be "
"emitted in every translation unit">,
InGroup<DiagGroup<"weak-vtables">>, DefaultIgnore;
+def warn_weak_template_vtable : Warning<
+ "this warning is no longer in use and will be removed in the next release">,
+ InGroup<DiagGroup<"weak-template-vtables">>, DefaultIgnore;
def ext_using_undefined_std : ExtWarn<
"using directive refers to implicitly-defined namespace 'std'">;
// Check that this warning is disabled on MS ABI targets which don't have key
// functions.
// RUN: %clang_cc1 %s -fsyntax-only -triple %ms_abi_triple -Werror -Wweak-vtables
+//
+// -Wweak-template-vtables is deprecated but we still parse it.
+// RUN: %clang_cc1 %s -fsyntax-only -Werror -Wweak-template-vtables
struct A { // expected-warning {{'A' has no out-of-line virtual method definitions; its vtable will be emitted in every translation unit}}
virtual void f() { }