https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117350
--- Comment #10 from ak at gcc dot gnu.org ---
The small test case also fails with gcc 13.0 (although it doesn't have the
nested ICE). So it's an old latent bug.
gcc version 13.3.1 20240913 (Red Hat 13.3.1-3) (GCC)
gcc -fauto-profile=fbdata.afdo gu.cc -O2 -flto
gu.cc:10:3: warning: access declarations are deprecated in favour of
using-declarations; suggestion: add the ‘using’ keyword [-Wdeprecated]
10 | __uniq_ptr_impl::__uniq_ptr_impl;
| ^~~~~~~~~~~~~~~
gu.cc:17:37: warning: ‘unique_ptr<T> make_unique() [with T =
{anonymous}::gcc_urlifier]’ used but never defined
17 | template <typename T> unique_ptr<T> make_unique();
| ^~~~~~~~~~~
during GIMPLE pass: einline
‘
in pp_format, at pretty-print.cc:1478
15 | unique_ptr(unique_ptr<_Up, _Ep>) : _M_t(0, _Ep()) {}
| ^~~~~~~~~~
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