https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79519
Bug ID: 79519
Summary: [5/6/7 Regression] ICE deleting template friend
function
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Keywords: ice-on-invalid-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 invalid code snippet triggers since GCC 5.1.0:
======================================================
struct A
{
template<typename> void foo();
};
struct B
{
template<typename> friend void A::foo() = delete;
};
======================================================
bug.cc:8:45: internal compiler error: in grokfield, at cp/decl2.c:930
template<typename> friend void A::foo() = delete;
^~~~~~
0x6ec8b1 grokfield(cp_declarator const*, cp_decl_specifier_seq*, tree_node*,
bool, tree_node*, tree_node*)
../../gcc/gcc/cp/decl2.c:930
0x7390a3 cp_parser_init_declarator
../../gcc/gcc/cp/parser.c:19375
0x71321a cp_parser_single_declaration
../../gcc/gcc/cp/parser.c:26728
0x73361c cp_parser_template_declaration_after_parameters
../../gcc/gcc/cp/parser.c:26332
0x7332ac cp_parser_explicit_template_declaration
../../gcc/gcc/cp/parser.c:26567
0x7332ac cp_parser_template_declaration_after_export
../../gcc/gcc/cp/parser.c:26586
0x70e571 cp_parser_member_declaration
../../gcc/gcc/cp/parser.c:23024
0x70f3fa cp_parser_member_specification_opt
../../gcc/gcc/cp/parser.c:22951
0x70f3fa cp_parser_class_specifier_1
../../gcc/gcc/cp/parser.c:22107
0x711a29 cp_parser_class_specifier
../../gcc/gcc/cp/parser.c:22359
0x711a29 cp_parser_type_specifier
../../gcc/gcc/cp/parser.c:16432
0x71291a cp_parser_decl_specifier_seq
../../gcc/gcc/cp/parser.c:13345
0x739b01 cp_parser_simple_declaration
../../gcc/gcc/cp/parser.c:12670
0x73aa25 cp_parser_block_declaration
../../gcc/gcc/cp/parser.c:12617
0x7135d4 cp_parser_declaration
../../gcc/gcc/cp/parser.c:12515
0x74406b cp_parser_declaration_seq_opt
../../gcc/gcc/cp/parser.c:12391
0x74434a cp_parser_translation_unit
../../gcc/gcc/cp/parser.c:4366
0x74434a c_parse_file()
../../gcc/gcc/cp/parser.c:38425
0x8a2f73 c_common_parse_file()
../../gcc/gcc/c-family/c-opts.c:1107
Please submit a full bug report, [etc.]
