https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107045
Bug ID: 107045
Summary: [modules] ICE on use of std::vector from importable
header
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: johelegp at gmail dot com
CC: johelegp at gmail dot com
Target Milestone: ---
See https://godbolt.org/z/qeGb9hhsf.
```sh
CXX=g++
echo "./std.hpp std.gcm
mod mod.gcm" > mm.txt
echo "#include <vector>" > std.hpp
echo "export module mod;
import \"std.hpp\";
export std::vector<int> v;" > mod.cpp
$CXX -std=c++23 -fmodules-ts -fmodule-mapper=mm.txt -x c++-header -c std.hpp
$CXX -std=c++23 -fmodules-ts -fmodule-mapper=mm.txt -c mod.cpp
```
Output:
```
mod.cpp:1:8: internal compiler error: in add_binding_entity, at
cp/module.cc:12850
1 | export module mod;
| ^~~~~~
0x22c5a9c internal_error(char const*, ...)
???:0
0x9b479b fancy_abort(char const*, int, char const*)
???:0
0xb222f3 walk_module_binding(tree_node*, bitmap_head*, bool (*)(tree_node*,
WMB_Flags, void*), void*)
???:0
0xaf184a depset::hash::add_namespace_entities(tree_node*, bitmap_head*)
???:0
0xb0c2a1 module_state::write_begin(elf_out*, cpp_reader*, module_state_config&,
unsigned int&)
???:0
0xb0d774 finish_module_processing(cpp_reader*)
???:0
0xa96874 c_parse_final_cleanups()
???:0
0xccf5d2 c_common_parse_file()
???:0
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://bugs.archlinux.org/> for instructions.
```
GCC 12/11 fail on import:
```
In module imported at /app/test.cpp:1:1:
mod: error: failed to read compiled module: Bad file data
mod: note: compiled module file is '/app/build/mod.gcm'
mod: fatal error: returning to the gate for a mechanical issue
compilation terminated.
```
