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From: "johelegp at gmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/103341] New: ICE type of variable instantiation constrained on template parameter Date: Sat, 20 Nov 2021 18:54:43 +0000 [thread overview] Message-ID: <bug-103341-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103341 Bug ID: 103341 Summary: ICE type of variable instantiation constrained on template parameter Product: gcc Version: 12.0 Status: UNCONFIRMED 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/68GYeKqK4. ```C++ template<class, class> struct is_same { }; template<class T, class U> concept same_as = is_same<T, U>::value; template<class T> inline constexpr same_as<T> auto trait_v{1}; using _ [[maybe_unused]] = decltype(trait_v<int>); ``` Output: ``` <source>: In instantiation of 'constexpr const auto [requires ::same_as<<placeholder>, T>] trait_v<int>': <source>:4:37: required from here <source>:3:52: internal compiler error: tree check: accessed elt 1 of 'tree_vec' with 0 elts in hash, at cp/constraint.cc:2503 3 | template<class T> inline constexpr same_as<T> auto trait_v{1}; | ^~~~~~~ 0x206d4e9 internal_error(char const*, ...) ???:0 0x6da40c tree_vec_elt_check_failed(int, int, char const*, int, char const*) ???:0 0x85fca0 sat_hasher::hash(sat_entry*) ???:0 0x85aed7 satisfaction_cache::satisfaction_cache(tree_node*, tree_node*, sat_info) ???:0 0x85f01a constraints_satisfied_p(tree_node*, tree_node*) ???:0 0xa3384b do_auto_deduction(tree_node*, tree_node*, tree_node*, int, auto_deduction_context, tree_node*, int) ???:0 0x8d2c1d cp_finish_decl(tree_node*, tree_node*, bool, tree_node*, int) ???:0 0xa46987 instantiate_decl(tree_node*, bool, bool) ???:0 0x8e7c9e maybe_instantiate_decl(tree_node*) ???:0 0x8e9760 mark_used(tree_node*, int) ???:0 0xabe557 finish_id_expression(tree_node*, tree_node*, tree_node*, cp_id_kind*, bool, bool, bool*, bool, bool, bool, bool, char const**, unsigned int) ???:0 0xa0cc65 c_parse_file() ???:0 0xb94bf2 c_common_parse_file() ???:0 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. Compiler returned: 1 ```
next reply other threads:[~2021-11-20 18:54 UTC|newest] Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-11-20 18:54 johelegp at gmail dot com [this message] 2021-11-22 9:15 ` [Bug c++/103341] " rguenth at gcc dot gnu.org 2021-12-14 8:08 ` [Bug c++/103341] [10/11 Regression] " pinskia at gcc dot gnu.org 2021-12-14 8:09 ` [Bug c++/103341] [11/12 " pinskia at gcc dot gnu.org 2021-12-14 8:13 ` pinskia at gcc dot gnu.org 2022-01-17 12:55 ` rguenth at gcc dot gnu.org 2022-01-28 13:18 ` cvs-commit at gcc dot gnu.org 2022-01-28 13:30 ` [Bug c++/103341] [11 " ppalka at gcc dot gnu.org 2022-01-31 6:16 ` asolokha at gmx dot com 2022-01-31 16:28 ` ppalka at gcc dot gnu.org 2022-04-12 23:44 ` cvs-commit at gcc dot gnu.org 2022-04-12 23:47 ` ppalka at gcc dot gnu.org
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