https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80991
Bug ID: 80991 Summary: ICE with __is_trivially_constructible in template Product: gcc Version: 8.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: reichelt at gcc dot gnu.org Target Milestone: --- The following valid code snippet triggers an ICE since GCC 5.1.0: ================================================================ template<bool> void foo() { static_assert(__is_trivially_constructible(int, int), ""); } void bar() { foo<true>(); } ================================================================ bug.cc: In function 'void foo()': bug.cc:3:60: internal compiler error: tree check: expected class 'type', have 'exceptional' (tree_list) in dependent_type_p, at cp/pt.c:23555 static_assert(__is_trivially_constructible(int, int), ""); ^ 0x1029257 tree_class_check_failed(tree_node const*, tree_code_class, char const*, int, char const*) ../../gcc/gcc/tree.c:9909 0x78cebf tree_class_check(tree_node*, tree_code_class, char const*, int, char const*) ../../gcc/gcc/tree.h:3206 0x78cebf dependent_type_p(tree_node*) ../../gcc/gcc/cp/pt.c:23555 0x805787 finish_static_assert(tree_node*, tree_node*, unsigned int, bool) ../../gcc/gcc/cp/semantics.c:8823 0x7577d0 cp_parser_static_assert ../../gcc/gcc/cp/parser.c:13651 0x76f9b6 cp_parser_block_declaration ../../gcc/gcc/cp/parser.c:12622 0x770199 cp_parser_declaration_statement ../../gcc/gcc/cp/parser.c:12235 0x744ef3 cp_parser_statement ../../gcc/gcc/cp/parser.c:10722 0x745fbd cp_parser_statement_seq_opt ../../gcc/gcc/cp/parser.c:11054 0x74608f cp_parser_compound_statement ../../gcc/gcc/cp/parser.c:11008 0x760853 cp_parser_function_body ../../gcc/gcc/cp/parser.c:21445 0x760853 cp_parser_ctor_initializer_opt_and_function_body ../../gcc/gcc/cp/parser.c:21483 0x765e61 cp_parser_function_definition_after_declarator ../../gcc/gcc/cp/parser.c:26290 0x74f8bd cp_parser_function_definition_from_specifiers_and_declarator ../../gcc/gcc/cp/parser.c:26202 0x74f8bd cp_parser_init_declarator ../../gcc/gcc/cp/parser.c:19168 0x74fe3a cp_parser_single_declaration ../../gcc/gcc/cp/parser.c:26748 0x76910c cp_parser_template_declaration_after_parameters ../../gcc/gcc/cp/parser.c:26352 0x768d94 cp_parser_explicit_template_declaration ../../gcc/gcc/cp/parser.c:26587 0x768d94 cp_parser_template_declaration_after_export ../../gcc/gcc/cp/parser.c:26606 0x741c79 cp_parser_declaration ../../gcc/gcc/cp/parser.c:12472 Please submit a full bug report, [etc.]