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From: "johelegp at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/107045] New: [modules] ICE on use of std::vector from importable header
Date: Mon, 26 Sep 2022 21:35:18 +0000	[thread overview]
Message-ID: <bug-107045-4@http.gcc.gnu.org/bugzilla/> (raw)

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.
```

             reply	other threads:[~2022-09-26 21:35 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-26 21:35 johelegp at gmail dot com [this message]
2022-09-26 22:48 ` [Bug c++/107045] " johelegp at gmail dot com
2022-09-26 23:33 ` [Bug c++/107045] [modules] ICE on instantiation of a ::std class template with a friend function imported from an " pinskia at gcc dot gnu.org

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