https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103871
--- Comment #10 from Iain Sandoe <iains at gcc dot gnu.org> ---
Despite investing some time in this, it seems that I cannot get a patch ready
for master / reviewed and back-ported in time (although I am hopeful to get the
fix sorted out in time for GCC-12)
(I can confirm that my fix does still work for this - but there is just not
enough time to process it through).
----
Looking at the test case and the diagnostics, it seems that PR98056 was latent
here and the fix in r12-618-g14ed21f8749ae359690d9c4a69ca38cc45d0d1b0 has
simply revealed it.
a workaround in the example might be:
auto task = g(std::make_unique<s>(std::vector{0L})); // ok
co_await task;
