[Bug c++/107045] New: [modules] ICE on use of std::vector from importable header

[Bug c++/107045] New: [modules] ICE on use of std::vector from importable header

[johelegp at gmail dot com]

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.
```

[Bug c++/107045] [modules] ICE on use of std::vector from importable header

[johelegp at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107045

--- Comment #1 from Johel Ernesto Guerrero Peña <johelegp at gmail dot com> ---
Minimal: https://godbolt.org/z/hxrPvPPhs.

```C++
namespace std {
template<class> struct X {
  friend void f();
};
}
```

```C++
export module mod;
import "std.hpp";
export std::X<int> v;
```

[Bug c++/107045] [modules] ICE on instantiation of a ::std class template with a friend function imported from an importable header

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107045

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |DUPLICATE
             Status|UNCONFIRMED                 |RESOLVED

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Dup of bug 100134.

*** This bug has been marked as a duplicate of bug 100134 ***