https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115801
Nathaniel Shead <nshead at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |nshead at gcc dot gnu.org
Last reconfirmed| |2024-07-07
Ever confirmed|0 |1
Status|UNCONFIRMED |NEW
--- Comment #1 from Nathaniel Shead <nshead at gcc dot gnu.org> ---
Confirmed. Full trace:
0x38eed62 internal_error(char const*, ...)
../../gcc/gcc/diagnostic-global-context.cc:491
0x1bd9a30 crash_signal
../../gcc/gcc/toplev.cc:319
0x7f97b0fa251f ???
./signal/../sysdeps/unix/sysv/linux/x86_64/libc_sigaction.c:0
0xdd6061 tree_check(tree_node*, char const*, int, char const*, tree_code)
../../gcc/gcc/tree.h:3631
0x1174d96 tsubst_template_decl
../../gcc/gcc/cp/pt.cc:15011
0x1177f87 tsubst_decl
../../gcc/gcc/cp/pt.cc:15127
0x117cb4e tsubst(tree_node*, tree_node*, int, tree_node*)
../../gcc/gcc/cp/pt.cc:16167
0x1160524 tsubst_friend_class
../../gcc/gcc/cp/pt.cc:11792
0x116635c instantiate_class_template(tree_node*)
../../gcc/gcc/cp/pt.cc:12669
0x12622ec complete_type(tree_node*)
../../gcc/gcc/cp/typeck.cc:138
0xf152e9 start_decl_1(tree_node*, bool)
../../gcc/gcc/cp/decl.cc:6210
0xf150ee start_decl(cp_declarator const*, cp_decl_specifier_seq*, int,
tree_node*, tree_node*, tree_node**)
../../gcc/gcc/cp/decl.cc:6176
0x10c939f cp_parser_init_declarator
../../gcc/gcc/cp/parser.cc:23719
0x10b968c cp_parser_simple_declaration
../../gcc/gcc/cp/parser.cc:16064
0x10b9195 cp_parser_block_declaration
../../gcc/gcc/cp/parser.cc:15883
0x10b7293 cp_parser_declaration_statement
../../gcc/gcc/cp/parser.cc:14988
0x10b1bb4 cp_parser_statement
../../gcc/gcc/cp/parser.cc:12913
0x10b2efa cp_parser_statement_seq_opt
../../gcc/gcc/cp/parser.cc:13450
0x10b2a58 cp_parser_compound_statement
../../gcc/gcc/cp/parser.cc:13297
0x10cefca cp_parser_function_body
../../gcc/gcc/cp/parser.cc:26231
The cause is that the TEMPLATE_DECL for "Foo" as found in tsubst_template_decl
has null DECL_TEMPLATE_PARMS, so we're probably missing streaming something for
uninstantiated template friends here.
