[Bug c++/99246] New: internal compiler error: in write_location, at cp/module.cc:15687

["alexander.lelyakin at googlemail dot com" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99246

            Bug ID: 99246
           Summary: internal compiler error: in write_location, at
                    cp/module.cc:15687
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: alexander.lelyakin at googlemail dot com
  Target Milestone: ---

g++ -std=c++20 -fmodules-ts -x c++-system-header numbers
g++ -std=c++20 -fmodules-ts -x c++-system-header ratio
g++ -std=c++20 -fmodules-ts -x c++-system-header cstdio
g++ -std=c++20 -fmodules-ts -x c++-system-header ostream
g++ -std=c++20 -fmodules-ts -x c++-system-header coroutine
g++ -std=c++20 -fmodules-ts -x c++-system-header barrier
----
/usr/local/include/c++/11.0.0/barrier: internal compiler error: in
write_location, at cp/module.cc:15687
0x6ddcb3 module_state::write_location(bytes_out&, unsigned int)
        ../../gcc/gcc/cp/module.cc:15687
0xa5cbc9 trees_out::core_vals(tree_node*)
        ../../gcc/gcc/cp/module.cc:5912
0xa5dafc trees_out::tree_node_vals(tree_node*)
        ../../gcc/gcc/cp/module.cc:7166
0xa5dafc trees_out::fn_parms_init(tree_node*)
        ../../gcc/gcc/cp/module.cc:10067
0xa5aa96 trees_out::decl_value(tree_node*, depset*)
        ../../gcc/gcc/cp/module.cc:7763
0xa5b0bb trees_out::decl_node(tree_node*, walk_kind)
        ../../gcc/gcc/cp/module.cc:8624
0xa5c0b2 trees_out::tree_node(tree_node*)
        ../../gcc/gcc/cp/module.cc:9179
0xa611f0 module_state::write_cluster(elf_out*, depset**, unsigned int,
depset::hash&, unsigned int*, unsigned int*)
        ../../gcc/gcc/cp/module.cc:14763
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
----
g++ (GCC) 11.0.0 20210223 (experimental)