https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82953
Bug ID: 82953
Summary: ICE in tree_check() ../../gcc/gcc/tree.h:3087
Product: gcc
Version: 7.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: slyfox at inbox dot ru
Target Milestone: ---
Created attachment 42588
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42588&action=edit
gcc-bug.ii
Originally reported in https://bugs.gentoo.org/636646
Minimal SIGSEGV reproducer (not valid c++) is:
class a;
template <class> class b {
static const b c;
const int *m_fn1();
};
template <class d> const b<d> b<d>::c;
template <class d> const int *b<d>::m_fn1() {
c.a::e
Crashes on gcc-7.2.0 and gcc-master as:
LANG=C ./bin/g++ -c gcc-bug.ii
gcc-bug.ii: In member function 'const int* b< <template-parameter-1-1>
>::m_fn1()':
gcc-bug.ii:8:8: internal compiler error: Segmentation fault
c.a::e
^
0xd937ef crash_signal
../../gcc/gcc/toplev.c:325
0x7fa1559ef03f ???
/usr/src/debug/sys-libs/glibc-2.26-r3/glibc-2.26/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0
0x7d66ad tree_check(tree_node*, char const*, int, char const*, tree_code)
../../gcc/gcc/tree.h:3087
0x7d66ad any_dependent_bases_p(tree_node*)
../../gcc/gcc/cp/search.c:2617
0x83ee52 finish_class_member_access_expr(cp_expr, tree_node*, bool, int)
../../gcc/gcc/cp/typeck.c:2848
0x733b98 cp_parser_postfix_dot_deref_expression
../../gcc/gcc/cp/parser.c:7693
0x740dde cp_parser_postfix_expression
../../gcc/gcc/cp/parser.c:7267
0x74472d cp_parser_unary_expression
../../gcc/gcc/cp/parser.c:8363
0x7214ac cp_parser_cast_expression
../../gcc/gcc/cp/parser.c:9131
0x721d47 cp_parser_binary_expression
../../gcc/gcc/cp/parser.c:9232
0x723864 cp_parser_assignment_expression
../../gcc/gcc/cp/parser.c:9519
0x7240d8 cp_parser_expression
../../gcc/gcc/cp/parser.c:9688
0x7262a8 cp_parser_expression_statement
../../gcc/gcc/cp/parser.c:11205
0x72d463 cp_parser_statement
../../gcc/gcc/cp/parser.c:11021
0x72e670 cp_parser_statement_seq_opt
../../gcc/gcc/cp/parser.c:11348
0x72e747 cp_parser_compound_statement
../../gcc/gcc/cp/parser.c:11302
0x748900 cp_parser_function_body
../../gcc/gcc/cp/parser.c:21837
0x748900 cp_parser_ctor_initializer_opt_and_function_body
../../gcc/gcc/cp/parser.c:21874
0x74a33a cp_parser_function_definition_after_declarator
../../gcc/gcc/cp/parser.c:26765
0x74b07d cp_parser_function_definition_from_specifiers_and_declarator
../../gcc/gcc/cp/parser.c:26681
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
gcc was built as:
LANG=C ./bin/g++ -v
Using built-in specs.
COLLECT_GCC=./bin/g++
COLLECT_LTO_WRAPPER=/home/slyfox/dev/git/gcc-native-quick-installed/bin/../libexec/gcc/x86_64-pc-linux-gnu/8.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../gcc/configure --enable-languages=c,c++ --disable-bootstrap
--with-multilib-list=m64
--prefix=/home/slyfox/dev/git/gcc-native-quick/../gcc-native-quick-installed
Thread model: posix
gcc version 8.0.0 20171112 (experimental) (GCC)
