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From: "johelegp at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/105044] [modules] ICE in comptypes, at cp/typeck.cc:1531
Date: Mon, 04 Jul 2022 03:28:30 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105044

--- Comment #3 from Johel Ernesto Guerrero Pe=C3=B1a <johelegp at gmail dot=
 com> ---
Enough recompilations from the actual use-case show this error:
```
/home/johel/Documents/C++/Repos/Waarudo/tests/unit/test.waarudo.quantities.=
cpp:
In substitution of =E2=80=98template<auto ...D> struct
waarudo::is_unit@waarudo.quantities<const waarudo::unit@waarudo.quantities<D
...>*> [with auto ...D =3D {waarudo::ratio@waarudo.quantities{146097, 400},=
 (&
waarudo::day@waarudo.quantities)}]=E2=80=99:
/home/johel/Documents/C++/Repos/Waarudo/tests/unit/test.waarudo.quantities.=
cpp:21:57:
  required from here
/home/johel/Documents/C++/Repos/Waarudo/tests/unit/test.waarudo.quantities.=
cpp:21:57:
internal compiler error: tree check: expected tree that contains =E2=80=98t=
yped=E2=80=99
structure, have =E2=80=98ggc_freed=E2=80=99 in convert_nontype_argument, at=
 cp/pt.cc:7763
   21 | static_assert(waarudo::is_unit<decltype(&waarudo::year)>::value);
      |                                                         ^~
0x226d11c internal_error(char const*, ...)
        ???:0
0x8d094f tree_contains_struct_check_failed(tree_node const*,
tree_node_structure_enum, char const*, int, char const*)
        ???:0
0xbc4daa lookup_template_class(tree_node*, tree_node*, tree_node*, tree_nod=
e*,
int, int)
        ???:0
0xbafdb7 tsubst(tree_node*, tree_node*, int, tree_node*)
        ???:0
0xbbf9eb tsubst_template_args(tree_node*, tree_node*, int, tree_node*)
        ???:0
0xbae4e6 most_specialized_partial_spec(tree_node*, int)
        ???:0
0xbd7a1c instantiate_class_template(tree_node*)
        ???:0
0xc2fe01 complete_type(tree_node*)
        ???:0
0xb7a0db c_parse_file()
        ???:0
0xcb9cd1 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.
```=