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From: "dimitri.gorokhovik at free dot fr" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/98810] New: [C++20] ICE in tsubst_copy, at cp/pt.c:16771 Date: Sun, 24 Jan 2021 20:31:44 +0000 [thread overview] Message-ID: <bug-98810-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98810 Bug ID: 98810 Summary: [C++20] ICE in tsubst_copy, at cp/pt.c:16771 Product: gcc Version: 11.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: dimitri.gorokhovik at free dot fr Target Milestone: --- The code: template <auto> struct a {}; template <int i, const a <i> s = a <i> {}> using b = a <s>; template <int i> constexpr auto g (const b <i> &) { return true; }; compiled with 'g++ -std=c++20 -c bug-13.cpp' (g++ (GCC) 11.0.0 20210123 (experimental)), produces: ug-13.cpp: In substitution of ‘template<int i, a<i> s> using b = a<((const a<i>)s)> [with int i = i; a<i> s = a<i>{}]’: bug-13.cpp:4:46: required from here bug-13.cpp:3:57: internal compiler error: in tsubst_copy, at cp/pt.c:16771 3 | template <int i, const a <i> s = a <i> {}> using b = a <s>; | ^ 0x6cb940 tsubst_copy ../../src/gcc/cp/pt.c:16771 0xac3c42 tsubst_copy_and_build(tree_node*, tree_node*, int, tree_node*, bool, bool) ../../src/gcc/cp/pt.c:20766 0xacee68 tsubst_expr(tree_node*, tree_node*, int, tree_node*, bool) ../../src/gcc/cp/pt.c:19019 0xae1a4e tsubst_template_args(tree_node*, tree_node*, int, tree_node*) ../../src/gcc/cp/pt.c:13322 0xaecf83 tsubst_aggr_type ../../src/gcc/cp/pt.c:13525 0xacbed0 tsubst_decl ../../src/gcc/cp/pt.c:14763 0xade475 instantiate_template_1 ../../src/gcc/cp/pt.c:21016 0xadf76f instantiate_template(tree_node*, tree_node*, int) ../../src/gcc/cp/pt.c:21075 0xadf76f instantiate_alias_template ../../src/gcc/cp/pt.c:21113 0xadf76f tsubst(tree_node*, tree_node*, int, tree_node*) ../../src/gcc/cp/pt.c:15394 0xaeb4ff lookup_template_class_1 ../../src/gcc/cp/pt.c:9937 0xaec8dc lookup_template_class(tree_node*, tree_node*, tree_node*, tree_node*, int, int) ../../src/gcc/cp/pt.c:10226 0xb1431b finish_template_type(tree_node*, tree_node*, int) ../../src/gcc/cp/semantics.c:3464 0xa87531 cp_parser_template_id ../../src/gcc/cp/parser.c:17406 0xa8771b cp_parser_class_name ../../src/gcc/cp/parser.c:24631 0xa7ecba cp_parser_qualifying_entity ../../src/gcc/cp/parser.c:6994 0xa7ecba cp_parser_nested_name_specifier_opt ../../src/gcc/cp/parser.c:6676 0xa94234 cp_parser_simple_type_specifier ../../src/gcc/cp/parser.c:18799 0xa7332d cp_parser_type_specifier ../../src/gcc/cp/parser.c:18457 0xa74329 cp_parser_decl_specifier_seq ../../src/gcc/cp/parser.c:15003 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.
next reply other threads:[~2021-01-24 20:31 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-01-24 20:31 dimitri.gorokhovik at free dot fr [this message] 2021-01-25 9:42 ` [Bug c++/98810] " rguenth at gcc dot gnu.org 2021-02-12 4:51 ` [Bug c++/98810] [9/10/11 Regression] " mpolacek at gcc dot gnu.org 2021-02-26 3:57 ` cvs-commit at gcc dot gnu.org 2021-02-26 4:02 ` [Bug c++/98810] [9/10 " jason at gcc dot gnu.org 2021-03-04 4:49 ` cvs-commit at gcc dot gnu.org 2021-03-04 5:13 ` cvs-commit at gcc dot gnu.org 2021-03-05 9:13 ` clyon at gcc dot gnu.org 2021-03-05 14:02 ` mpolacek at gcc dot gnu.org 2021-04-05 21:43 ` jason at gcc dot gnu.org
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