https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109283
--- Comment #3 from ncm at cantrip dot org --- Appears fixed in 13.1 Still ICEs in trunk, Compiler-Explorer-Build-gcc-70d038235cc91ef1ea4fce519e628cfb2d297bff-binutils-2.40) 14.0.0 20230508 (experimental): <source>: In function 'std::generator<std::__cxx11::basic_string<char> > source(int&, std::string)': <source>:513:1: internal compiler error: in flatten_await_stmt, at cp/coroutines.cc:2899 513 | }