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List:       gcc-bugs
Subject:    [Bug c++/99284] [modules] ICE in key_mergeable, at cp/module.cc:10441
From:       "alexander.lelyakin at googlemail dot com via Gcc-bugs" <gcc-bugs () gcc ! gnu ! org>
Date:       2021-02-28 18:52:35
Message-ID: bug-99284-4-NuwtGi06Zn () http ! gcc ! gnu ! org/bugzilla/
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99284

--- Comment #1 from Alexander Lelyakin <alexander.lelyakin at googlemail dot com> ---
There is a shorter sequence:

g++ -std=c++20 -fmodules-ts -x c++-system-header unordered_map
g++ -std=c++20 -fmodules-ts -x c++-system-header regex
----
/usr/local/include/c++/11.0.1/regex: internal compiler error: in key_mergeable,
at cp/module.cc:10456
0x6e1dd9 trees_out::key_mergeable(int, merge_kind, tree_node*, tree_node*,
tree_node*, depset*)
        ../../gcc/gcc/cp/module.cc:10456
0xa5a8f1 trees_out::decl_value(tree_node*, depset*)
        ../../gcc/gcc/cp/module.cc:7769
0xa625c3 depset::hash::find_dependencies(module_state*)
        ../../gcc/gcc/cp/module.cc:13237
0xa62c28 module_state::write(elf_out*, cpp_reader*)
        ../../gcc/gcc/cp/module.cc:17652
0xa640cf finish_module_processing(cpp_reader*)
        ../../gcc/gcc/cp/module.cc:19922
0x9f776b c_parse_final_cleanups()
        ../../gcc/gcc/cp/decl2.c:5175
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 20210228 (experimental)=
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