https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67544
Bug ID: 67544
Summary: ICE: SIGSEGV in tree_check3 (tree.h:2896) with
-fconcepts
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Target Milestone: ---
Created attachment 36322
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36322&action=edit
reduced testcase
Compiler output:
$ gcc -fconcepts testcase.C
testcase.C:8:45: internal compiler error: Segmentation fault
template<typename T> friend struct A<T>::B;
^
0xd160cf crash_signal
/mnt/svn/gcc-trunk/gcc/toplev.c:352
0x762540 tree_check3(tree_node*, char const*, int, char const*, tree_code,
tree_code, tree_code)
/mnt/svn/gcc-trunk/gcc/tree.h:2896
0x762540 lookup_member(tree_node*, tree_node*, int, bool, int)
/mnt/svn/gcc-trunk/gcc/cp/search.c:1281
0x74718b make_friend_class(tree_node*, tree_node*, bool)
/mnt/svn/gcc-trunk/gcc/cp/friend.c:321
0x70faa9 cp_parser_template_declaration_after_parameters
/mnt/svn/gcc-trunk/gcc/cp/parser.c:24506
0x710384 cp_parser_explicit_template_declaration
/mnt/svn/gcc-trunk/gcc/cp/parser.c:24722
0x710384 cp_parser_template_declaration_after_export
/mnt/svn/gcc-trunk/gcc/cp/parser.c:24740
0x71095d cp_parser_member_declaration
/mnt/svn/gcc-trunk/gcc/cp/parser.c:21314
0x6ed064 cp_parser_member_specification_opt
/mnt/svn/gcc-trunk/gcc/cp/parser.c:21241
0x6ed064 cp_parser_class_specifier_1
/mnt/svn/gcc-trunk/gcc/cp/parser.c:20433
0x6ed064 cp_parser_class_specifier
/mnt/svn/gcc-trunk/gcc/cp/parser.c:20669
0x6ed064 cp_parser_type_specifier
/mnt/svn/gcc-trunk/gcc/cp/parser.c:15076
0x6fcd8b cp_parser_decl_specifier_seq
/mnt/svn/gcc-trunk/gcc/cp/parser.c:12042
0x7115f0 cp_parser_simple_declaration
/mnt/svn/gcc-trunk/gcc/cp/parser.c:11608
0x70afb4 cp_parser_block_declaration
/mnt/svn/gcc-trunk/gcc/cp/parser.c:11555
0x717147 cp_parser_declaration
/mnt/svn/gcc-trunk/gcc/cp/parser.c:11452
0x7158ea cp_parser_declaration_seq_opt
/mnt/svn/gcc-trunk/gcc/cp/parser.c:11334
0x715c05 cp_parser_translation_unit
/mnt/svn/gcc-trunk/gcc/cp/parser.c:4154
0x715c05 c_parse_file()
/mnt/svn/gcc-trunk/gcc/cp/parser.c:34271
0x861852 c_common_parse_file()
/mnt/svn/gcc-trunk/gcc/c-family/c-opts.c:1058
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
Tested revisions:
r227604 - ICE
