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[Bug c++/77339] New: ICE on invalid C++ code on x86_64-linux-gnu: in cp_parser_type_name, at cp/parser.c:16532
- From: "su at cs dot ucdavis.edu" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 23 Aug 2016 07:01:08 +0000
- Subject: [Bug c++/77339] New: ICE on invalid C++ code on x86_64-linux-gnu: in cp_parser_type_name, at cp/parser.c:16532
- Auto-submitted: auto-generated
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77339
Bug ID: 77339
Summary: ICE on invalid C++ code on x86_64-linux-gnu: in
cp_parser_type_name, at cp/parser.c:16532
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: su at cs dot ucdavis.edu
Target Milestone: ---
It affects 4.8.x and later, and is a regression from 4.7.x.
$ g++-trunk -v
Using built-in specs.
COLLECT_GCC=g++-trunk
COLLECT_LTO_WRAPPER=/usr/local/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/7.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc-source-trunk/configure --enable-languages=c,c++,lto
--prefix=/usr/local/gcc-trunk --disable-bootstrap
Thread model: posix
gcc version 7.0.0 20160822 (experimental) [trunk revision 239655] (GCC)
$
$ g++-trunk -c small.cpp
small.cpp:3:25: internal compiler error: in cp_parser_type_name, at
cp/parser.c:16532
template < typename X > A < X >::a;
^~~~~~~
0x7a94ec cp_parser_type_name
../../gcc-source-trunk/gcc/cp/parser.c:16532
0x797f89 cp_parser_type_name
../../gcc-source-trunk/gcc/cp/parser.c:16482
0x797f89 cp_parser_simple_type_specifier
../../gcc-source-trunk/gcc/cp/parser.c:16396
0x793e71 cp_parser_type_specifier
../../gcc-source-trunk/gcc/cp/parser.c:16049
0x7a8d33 cp_parser_decl_specifier_seq
../../gcc-source-trunk/gcc/cp/parser.c:12889
0x7b7d15 cp_parser_single_declaration
../../gcc-source-trunk/gcc/cp/parser.c:25934
0x7b808c cp_parser_template_declaration_after_parameters
../../gcc-source-trunk/gcc/cp/parser.c:25630
0x7b8aa1 cp_parser_explicit_template_declaration
../../gcc-source-trunk/gcc/cp/parser.c:25861
0x7b8aa1 cp_parser_template_declaration_after_export
../../gcc-source-trunk/gcc/cp/parser.c:25879
0x7c00e9 cp_parser_declaration
../../gcc-source-trunk/gcc/cp/parser.c:12209
0x7beb34 cp_parser_declaration_seq_opt
../../gcc-source-trunk/gcc/cp/parser.c:12139
0x7bee78 cp_parser_translation_unit
../../gcc-source-trunk/gcc/cp/parser.c:4356
0x7bee78 c_parse_file()
../../gcc-source-trunk/gcc/cp/parser.c:37671
0x92c462 c_common_parse_file()
../../gcc-source-trunk/gcc/c-family/c-opts.c:1073
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.
$
-------------------------------------------
template < typename > using A = int;
//OK: template < typename X > A < X > a;
template < typename X > A < X >::a;