https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99283
--- Comment #9 from Alexander Lelyakin <alexander.lelyakin at googlemail dot
com> ---
There is a shorter sequence:
----
/usr/local/bin/g++ -std=c++20 -fmodules-ts -x c++-system-header fstream
/usr/local/bin/g++ -std=c++20 -fmodules-ts -x c++-system-header string_view
/usr/local/bin/g++ -std=c++20 -fmodules-ts -x c++-system-header mutex
/usr/local/bin/g++ -std=c++20 -fmodules-ts -x c++-system-header future
----
In file included from /usr/local/include/c++/11.0.1/bits/shared_ptr_base.h:53,
from /usr/local/include/c++/11.0.1/bits/shared_ptr.h:53,
from /usr/local/include/c++/11.0.1/condition_variable:43,
from /usr/local/include/c++/11.0.1/future:39:
/usr/local/include/c++/11.0.1/bits/allocated_ptr.h:48:32: internal compiler
error: in assert_definition, at cp/module.cc:4484
48 | using pointer = typename allocator_traits<_Alloc>::pointer;
| ^~~~~~~~~~~~~~~~
0x6e204d trees_in::assert_definition(tree_node*, bool)
../../gcc/gcc/cp/module.cc:4484
0xa5d810 trees_in::odr_duplicate(tree_node*, bool)
../../gcc/gcc/cp/module.cc:11362
0xa6d497 trees_in::read_var_def(tree_node*, tree_node*)
../../gcc/gcc/cp/module.cc:11550
0xa6f4a1 module_state::read_cluster(unsigned int)
../../gcc/gcc/cp/module.cc:14855
0xa6fb1d module_state::load_section(unsigned int, binding_slot*)
../../gcc/gcc/cp/module.cc:18117
0xa6fbdf module_state::lazy_load(unsigned int, binding_slot*)
../../gcc/gcc/cp/module.cc:18778
0xa69e80 trees_in::tree_node(bool)
../../gcc/gcc/cp/module.cc:9700
0xa6a921 trees_in::core_vals(tree_node*)
../../gcc/gcc/cp/module.cc:6407
0xa686e7 trees_in::tree_node_vals(tree_node*)
../../gcc/gcc/cp/module.cc:7051
0xa686e7 trees_in::tree_value()
../../gcc/gcc/cp/module.cc:8966
0xa68b1f trees_in::tree_node(bool)
../../gcc/gcc/cp/module.cc:9184
0xa6a921 trees_in::core_vals(tree_node*)
../../gcc/gcc/cp/module.cc:6407
0xa686e7 trees_in::tree_node_vals(tree_node*)
../../gcc/gcc/cp/module.cc:7051
0xa686e7 trees_in::tree_value()
../../gcc/gcc/cp/module.cc:8966
0xa68b1f trees_in::tree_node(bool)
../../gcc/gcc/cp/module.cc:9184
0xa6b072 trees_in::core_vals(tree_node*)
../../gcc/gcc/cp/module.cc:6615
0xa686e7 trees_in::tree_node_vals(tree_node*)
../../gcc/gcc/cp/module.cc:7051
0xa686e7 trees_in::tree_value()
../../gcc/gcc/cp/module.cc:8966
0xa68b1f trees_in::tree_node(bool)
../../gcc/gcc/cp/module.cc:9184
0xa6b080 trees_in::core_vals(tree_node*)
../../gcc/gcc/cp/module.cc:6616
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
----
g++ (GCC) 11.0.1 20210324 (experimental)
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