https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99153
--- Comment #6 from Alexander Lelyakin <alexander.lelyakin at googlemail dot
com> ---
Another, shorter sequence:
----
g++ -std=c++20 -fmodules-ts -x c++-system-header new
g++ -std=c++20 -fmodules-ts -x c++-system-header initializer_list
g++ -std=c++20 -fmodules-ts -x c++-system-header typeinfo
g++ -std=c++20 -fmodules-ts -x c++-system-header type_traits
g++ -std=c++20 -fmodules-ts -x c++-system-header exception
----
/usr/local/include/c++/11.0.0/exception: internal compiler error: in
write_cluster, at cp/module.cc:14600
0x6e2d56 module_state::write_cluster(elf_out*, depset**, unsigned int,
depset::hash&, unsigned int*, unsigned int*)
../../gcc/gcc/cp/module.cc:14600
0xa62be8 module_state::write(elf_out*, cpp_reader*)
../../gcc/gcc/cp/module.cc:17734
0xa638fc finish_module_processing(cpp_reader*)
../../gcc/gcc/cp/module.cc:19860
0x9f72cb c_parse_final_cleanups()
../../gcc/gcc/cp/decl2.c:5175
