From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id CB8D73858D28; Tue, 23 Nov 2021 10:26:48 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org CB8D73858D28 From: "asolokha at gmx dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/103379] New: [12 Regression] ICE: tree check: expected class 'type', have 'declaration' (namespace_decl) in comptypes, at cp/typeck.c:1544 Date: Tue, 23 Nov 2021 10:26:48 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c++ X-Bugzilla-Version: 12.0 X-Bugzilla-Keywords: ice-on-invalid-code X-Bugzilla-Severity: normal X-Bugzilla-Who: asolokha at gmx dot com X-Bugzilla-Status: UNCONFIRMED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version bug_status keywords bug_severity priority component assigned_to reporter target_milestone Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: gcc-bugs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-bugs mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 Nov 2021 10:26:48 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D103379 Bug ID: 103379 Summary: [12 Regression] ICE: tree check: expected class 'type', have 'declaration' (namespace_decl) in comptypes, at cp/typeck.c:1544 Product: gcc Version: 12.0 Status: UNCONFIRMED Keywords: ice-on-invalid-code Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: asolokha at gmx dot com Target Milestone: --- g++-12.0.0-alpha20211121 snapshot (g:da17c304e22ba256eba0b03710aa329115163b= 08) ICEs when compiling the following testcase, extracted from test/CXX/dcl.dcl/basic.namespace/namespace.udecl/p7-cxx20.cpp from the clang 13.0.0 test suite, w/ -std=3Dc++20: namespace Nine { namespace Q { enum class Bob { a }; using Bob::a; } struct Foo { using Q::a; using Q::Bob::a; }; } % gcc-12.0.0 -std=3Dc++20 -c tjgp3kjm.cpp tjgp3kjm.cpp:9:17: internal compiler error: tree check: expected class 'typ= e', have 'declaration' (namespace_decl) in comptypes, at cp/typeck.c:1544 9 | using Q::Bob::a; | ^ 0x862e17 tree_class_check_failed(tree_node const*, tree_code_class, char const*, int, char const*) =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211121/work/gcc-12-20211121/gc= c/tree.c:8752 0x72ded8 tree_class_check(tree_node*, tree_code_class, char const*, int, ch= ar const*) =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211121/work/gcc-12-20211121/gc= c/tree.h:3564 0x72ded8 comptypes(tree_node*, tree_node*, int) =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211121/work/gcc-12-20211121/gc= c/cp/typeck.c:1544 0xa84878 push_class_level_binding_1 =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211121/work/gcc-12-20211121/gc= c/cp/name-lookup.c:5490 0xa84a1e push_class_level_binding(tree_node*, tree_node*) =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211121/work/gcc-12-20211121/gc= c/cp/name-lookup.c:5549 0xa84a1e pushdecl_class_level(tree_node*) =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211121/work/gcc-12-20211121/gc= c/cp/name-lookup.c:5284 0xb62567 finish_member_declaration(tree_node*) =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211121/work/gcc-12-20211121/gc= c/cp/semantics.c:3562 0xa98b81 finish_using_decl =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211121/work/gcc-12-20211121/gc= c/cp/parser.c:21338 0xadd229 cp_parser_using_declaration =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211121/work/gcc-12-20211121/gc= c/cp/parser.c:21469 0xab55e6 cp_parser_member_specification_opt =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211121/work/gcc-12-20211121/gc= c/cp/parser.c:26668 0xab55e6 cp_parser_class_specifier_1 =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211121/work/gcc-12-20211121/gc= c/cp/parser.c:25738 0xab7ab7 cp_parser_class_specifier =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211121/work/gcc-12-20211121/gc= c/cp/parser.c:26055 0xab7ab7 cp_parser_type_specifier =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211121/work/gcc-12-20211121/gc= c/cp/parser.c:19220 0xab8a54 cp_parser_decl_specifier_seq =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211121/work/gcc-12-20211121/gc= c/cp/parser.c:15794 0xab99d7 cp_parser_simple_declaration =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211121/work/gcc-12-20211121/gc= c/cp/parser.c:15042 0xaeb015 cp_parser_declaration =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211121/work/gcc-12-20211121/gc= c/cp/parser.c:14855 0xaea4f9 cp_parser_toplevel_declaration =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211121/work/gcc-12-20211121/gc= c/cp/parser.c:14876 0xaea4f9 cp_parser_declaration_seq_opt =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211121/work/gcc-12-20211121/gc= c/cp/parser.c:14629 0xaea953 cp_parser_namespace_body =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211121/work/gcc-12-20211121/gc= c/cp/parser.c:21250 0xaea953 cp_parser_namespace_definition =20=20=20=20=20=20=20 /var/tmp/portage/sys-devel/gcc-12.0.0_alpha20211121/work/gcc-12-20211121/gc= c/cp/parser.c:21228=