https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64129
Bug ID: 64129
Summary: [5.0 regression] ICE on invalid: in grokfndecl, at
cp/decl.c:7658
Product: gcc
Version: 5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: dimhen at gmail dot com
r218182 FAIL
r214718 FAIL (different stack)
r214134 PASS
$ cat x.ii
template <0> int __copy_streambufs_eof;
class {
friend __copy_streambufs_eof <> (
$ /usr/local/gcc_current/bin/g++ -fpreprocessed -fsyntax-only x.ii
x.ii:1:11: error: expected identifier before numeric constant
template <0> int __copy_streambufs_eof;
^
x.ii:1:11: error: expected '>' before numeric constant
x.ii:1:18: warning: variable templates only available with -std=c++14 or
-std=gnu++14
template <0> int __copy_streambufs_eof;
^
x.ii:3:35: error: wrong number of template arguments (0, should be 1)
friend __copy_streambufs_eof <> (
^
x.ii:1:18: note: provided for 'template<int <anonymous> > int
__copy_streambufs_eof<<anonymous> >'
template <0> int __copy_streambufs_eof;
^
x.ii:3:37: error: expected identifier at end of input
friend __copy_streambufs_eof <> (
^
x.ii:3:37: error: expected ',' or '...' at end of input
x.ii:3:37: error: expected ')' at end of input
x.ii:3:37: error: ISO C++ forbids declaration of '__copy_streambufs_eof' with
no type [-fpermissive]
x.ii:3:37: internal compiler error: in grokfndecl, at cp/decl.c:7658
0x5eb4c5 grokfndecl
/home/dimhen/src/gcc_current/gcc/cp/decl.c:7658
0x5e01c9 grokdeclarator(cp_declarator const*, cp_decl_specifier_seq*,
decl_context, int, tree_node**)
/home/dimhen/src/gcc_current/gcc/cp/decl.c:10716
0x68d006 grokfield(cp_declarator const*, cp_decl_specifier_seq*, tree_node*,
bool, tree_node*, tree_node*)
/home/dimhen/src/gcc_current/gcc/cp/decl2.c:875
0x6cfd2d cp_parser_member_declaration
/home/dimhen/src/gcc_current/gcc/cp/parser.c:20992
0x6abb05 cp_parser_member_specification_opt
/home/dimhen/src/gcc_current/gcc/cp/parser.c:20544
0x6abb05 cp_parser_class_specifier_1
/home/dimhen/src/gcc_current/gcc/cp/parser.c:19736
0x6abb05 cp_parser_class_specifier
/home/dimhen/src/gcc_current/gcc/cp/parser.c:19972
0x6abb05 cp_parser_type_specifier
/home/dimhen/src/gcc_current/gcc/cp/parser.c:14632
0x6ae33f cp_parser_decl_specifier_seq
/home/dimhen/src/gcc_current/gcc/cp/parser.c:11867
0x6ce139 cp_parser_simple_declaration
/home/dimhen/src/gcc_current/gcc/cp/parser.c:11457
0x6ce693 cp_parser_block_declaration
/home/dimhen/src/gcc_current/gcc/cp/parser.c:11406
0x6af939 cp_parser_declaration
/home/dimhen/src/gcc_current/gcc/cp/parser.c:11303
0x6dbe7a cp_parser_declaration_seq_opt
/home/dimhen/src/gcc_current/gcc/cp/parser.c:11189
0x6dc1b7 cp_parser_translation_unit
/home/dimhen/src/gcc_current/gcc/cp/parser.c:4101
0x6dc1b7 c_parse_file()
/home/dimhen/src/gcc_current/gcc/cp/parser.c:32199
0x8124a2 c_common_parse_file()
/home/dimhen/src/gcc_current/gcc/c-family/c-opts.c:1039
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.
$ /usr/local/gcc_current/bin/gcc -v
Using built-in specs.
COLLECT_GCC=/usr/local/gcc_current/bin/gcc
COLLECT_LTO_WRAPPER=/usr/local/gcc_current/libexec/gcc/x86_64-unknown-linux-gnu/5.0.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: /home/dimhen/src/gcc_current/configure
--prefix=/usr/local/gcc_current/ --enable-checking=yes,df,rtl
--enable-languages=c,c++,lto --enable-plugin=yes --enable-static
Thread model: posix
gcc version 5.0.0 20141129 (experimental) [trunk revision 218182] (GCC)
$ ~/bin/gcc_214718/bin/g++ -fpreprocessed -fsyntax-only x.ii
x.ii:1:11: error: expected identifier before numeric constant
template <0> int __copy_streambufs_eof;
^
x.ii:1:11: error: expected '>' before numeric constant
x.ii:1:18: warning: variable templates only available with -std=c++14 or
-std=gnu++14
template <0> int __copy_streambufs_eof;
^
x.ii:3:35: internal compiler error: Segmentation fault
friend __copy_streambufs_eof <> (
^
0xc6025f crash_signal
/home/dimhen/src/gcc_current/gcc/toplev.c:339
0x5d1dee uses_template_parms(tree_node*)
/home/dimhen/src/gcc_current/gcc/cp/pt.c:8239
0x5d3a93 lookup_template_variable(tree_node*, tree_node*)
/home/dimhen/src/gcc_current/gcc/cp/pt.c:7978
0x697c0a cp_parser_template_id
/home/dimhen/src/gcc_current/gcc/cp/parser.c:13636
0x697d95 cp_parser_class_name
/home/dimhen/src/gcc_current/gcc/cp/parser.c:19386
0x68bfd9 cp_parser_qualifying_entity
/home/dimhen/src/gcc_current/gcc/cp/parser.c:5564
0x68bfd9 cp_parser_nested_name_specifier_opt
/home/dimhen/src/gcc_current/gcc/cp/parser.c:5289
0x69af2b cp_parser_constructor_declarator_p
/home/dimhen/src/gcc_current/gcc/cp/parser.c:22870
0x69af2b cp_parser_decl_specifier_seq
/home/dimhen/src/gcc_current/gcc/cp/parser.c:11733
0x6a1636 cp_parser_member_declaration
/home/dimhen/src/gcc_current/gcc/cp/parser.c:20477
0x67fe4c cp_parser_member_specification_opt
/home/dimhen/src/gcc_current/gcc/cp/parser.c:20332
0x67fe4c cp_parser_class_specifier_1
/home/dimhen/src/gcc_current/gcc/cp/parser.c:19522
0x682860 cp_parser_class_specifier
/home/dimhen/src/gcc_current/gcc/cp/parser.c:19758
0x682860 cp_parser_type_specifier
/home/dimhen/src/gcc_current/gcc/cp/parser.c:14507
0x69adb4 cp_parser_decl_specifier_seq
/home/dimhen/src/gcc_current/gcc/cp/parser.c:11748
0x6a0d69 cp_parser_simple_declaration
/home/dimhen/src/gcc_current/gcc/cp/parser.c:11338
0x684a93 cp_parser_block_declaration
/home/dimhen/src/gcc_current/gcc/cp/parser.c:11287
0x6ab465 cp_parser_declaration
/home/dimhen/src/gcc_current/gcc/cp/parser.c:11184
0x6aa118 cp_parser_declaration_seq_opt
/home/dimhen/src/gcc_current/gcc/cp/parser.c:11070
0x6ab9b3 cp_parser_translation_unit
/home/dimhen/src/gcc_current/gcc/cp/parser.c:4053
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.
$ ~/bin/gcc_214718/bin/g++ -v
Using built-in specs.
COLLECT_GCC=/home/dimhen/bin/gcc_214718/bin/g++
COLLECT_LTO_WRAPPER=/home/dimhen/bin/gcc_214718/bin/../libexec/gcc/x86_64-unknown-linux-gnu/5.0.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: /home/dimhen/src/gcc_current/configure
--prefix=/usr/local/gcc_current/ --enable-checking=yes,df,rtl,tree,fold
--enable-languages=c,c++,lto --enable-plugin=yes --enable-static
Thread model: posix
gcc version 5.0.0 20140829 (experimental) [trunk revision 214718] (GCC)
