https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89341
--- Comment #12 from JunMa <JunMa at linux dot alibaba.com> ---
(In reply to Jan Hubicka from comment #11)
> Removing the alias check seems correct to me. The same body alias patch was
> long and needed special casing those aliases on quite few places. I am not
> at all sure why I added this one, but it definitly silences the diagnostics
> completely that is wrong.
we cannot remove the alias check here directly, since the definition and alias
field of target node is set to true in cgraph_node::create_alias. Consider:
static void __attribute__((weakref("bar"))) foo1(void);
static void __attribute__((weakref("foo1"))) foo2(void);
void bar();
if alias check removed, gcc gives warning at foo2.
I have sent the patch to maillist， see
https://gcc.gnu.org/ml/gcc-patches/2019-03/msg01249.html， please have a look.
