https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82794
Martin Liška <marxin at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2017-11-01 CC| |marxin at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> --- Confirm, all supporting -fconcepts ICE. However I see following backtrace: pr82794.cpp:4:10: internal compiler error: in tsubst, at cp/pt.c:13756 template<Foo fun> ^~~ 0x7bb3ee tsubst(tree_node*, tree_node*, int, tree_node*) ../../gcc/cp/pt.c:13756 0x7cc4bc coerce_template_parms ../../gcc/cp/pt.c:8203 0x655011 resolve_variable_concept_check(tree_node*) ../../gcc/cp/constraint.cc:303 0x655224 deduce_constrained_parameter(tree_node*, tree_node*&, tree_node*&) ../../gcc/cp/constraint.cc:328 0x7413ae cp_parser_maybe_constrained_type_specifier ../../gcc/cp/parser.c:17479 0x741541 cp_parser_nonclass_name ../../gcc/cp/parser.c:17570 0x7643c3 cp_parser_type_name ../../gcc/cp/parser.c:17376 0x7643c3 cp_parser_simple_type_specifier ../../gcc/cp/parser.c:17248 0x7613ad cp_parser_type_specifier ../../gcc/cp/parser.c:16894 0x76f836 cp_parser_decl_specifier_seq ../../gcc/cp/parser.c:13684 0x76ff71 cp_parser_parameter_declaration ../../gcc/cp/parser.c:21564 0x771286 cp_parser_template_parameter ../../gcc/cp/parser.c:15509 0x771286 cp_parser_template_parameter_list ../../gcc/cp/parser.c:15098 0x7756ee cp_parser_explicit_template_declaration ../../gcc/cp/parser.c:27045 0x7756ee cp_parser_template_declaration_after_export ../../gcc/cp/parser.c:27079 0x77bac9 cp_parser_declaration ../../gcc/cp/parser.c:12788 0x77bdfb cp_parser_declaration_seq_opt ../../gcc/cp/parser.c:12715 0x77c10b cp_parser_translation_unit ../../gcc/cp/parser.c:4502 0x77c10b c_parse_file() ../../gcc/cp/parser.c:39021 0x8c3086 c_common_parse_file() ../../gcc/c-family/c-opts.c:1124