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From: "reichelt at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/60187] New: [4.7/4.8/4.9 Regression] [c++11] ICE with parameter pack as underlying type for enum Date: Thu, 13 Feb 2014 22:56:00 -0000 [thread overview] Message-ID: <bug-60187-4@http.gcc.gnu.org/bugzilla/> (raw) http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60187 Bug ID: 60187 Summary: [4.7/4.8/4.9 Regression] [c++11] ICE with parameter pack as underlying type for enum Product: gcc Version: 4.9.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: reichelt at gcc dot gnu.org The following invalid code snippet (compiled with "-std=c++11") triggers an ICE since GCC 4.6.0: ================================================== template<typename... T> struct A { enum E : T {}; }; A<int> a; ================================================== bug.cc: In instantiation of 'struct A<int>': bug.cc:6:8: required from here bug.cc:3:8: internal compiler error: in dependent_type_p, at cp/pt.c:20283 enum E : T {}; ^ 0x5ff408 dependent_type_p(tree_node*) ../../gcc/gcc/cp/pt.c:20283 0x5d1e29 start_enum(tree_node*, tree_node*, tree_node*, bool, bool*) ../../gcc/gcc/cp/decl.c:12604 0x624e54 lookup_template_class_1 ../../gcc/gcc/cp/pt.c:7518 0x624e54 lookup_template_class(tree_node*, tree_node*, tree_node*, tree_node*, int, int) ../../gcc/gcc/cp/pt.c:7725 0x629673 tsubst_aggr_type ../../gcc/gcc/cp/pt.c:10031 0x61b9f1 tsubst(tree_node*, tree_node*, int, tree_node*) ../../gcc/gcc/cp/pt.c:11436 0x62e0d3 tsubst_decl ../../gcc/gcc/cp/pt.c:10824 0x61be9f tsubst(tree_node*, tree_node*, int, tree_node*) ../../gcc/gcc/cp/pt.c:11357 0x64a34a instantiate_class_template_1 ../../gcc/gcc/cp/pt.c:9010 0x64a34a instantiate_class_template(tree_node*) ../../gcc/gcc/cp/pt.c:9274 0x6db973 complete_type(tree_node*) ../../gcc/gcc/cp/typeck.c:134 0x5c4f38 start_decl_1(tree_node*, bool) ../../gcc/gcc/cp/decl.c:4719 0x5ede67 start_decl(cp_declarator const*, cp_decl_specifier_seq*, int, tree_node*, tree_node*, tree_node**) ../../gcc/gcc/cp/decl.c:4682 0x6c7e9e cp_parser_init_declarator ../../gcc/gcc/cp/parser.c:16680 0x6c9929 cp_parser_simple_declaration ../../gcc/gcc/cp/parser.c:11205 0x6acc13 cp_parser_block_declaration ../../gcc/gcc/cp/parser.c:11086 0x6d3ec2 cp_parser_declaration ../../gcc/gcc/cp/parser.c:10983 0x6d2bb8 cp_parser_declaration_seq_opt ../../gcc/gcc/cp/parser.c:10869 0x6d445a cp_parser_translation_unit ../../gcc/gcc/cp/parser.c:4014 0x6d445a c_parse_file() ../../gcc/gcc/cp/parser.c:31536 Please submit a full bug report, [etc.] The code was correctly rejected by GCC 4.4.0 and wrongly accepted by GCC 4.4.1-4.5.3.
next reply other threads:[~2014-02-13 22:56 UTC|newest] Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top 2014-02-13 22:56 reichelt at gcc dot gnu.org [this message] 2014-02-14 7:35 ` [Bug c++/60187] " jakub at gcc dot gnu.org 2014-02-21 19:00 ` jason at gcc dot gnu.org 2014-02-21 21:48 ` jason at gcc dot gnu.org 2014-02-21 22:15 ` jason at gcc dot gnu.org 2014-02-22 5:03 ` jason at gcc dot gnu.org
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