https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96462
Bug ID: 96462
Summary: [10/11 Regression] ICE in tree check: expected
identifier_node, have bit_not_expr in
find_namespace_slot, at cp/name-lookup.c:97
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Keywords: ice-on-invalid-code
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: haoxintu at gmail dot com
Target Milestone: ---
Hi, all.
This code makes GCC-trunk ICE without emitting any error messages, while other
released versions compile it well.
Input:
//small.cc
enum a {};
using a:: ~ a;
Command:
g++ small.cc
Output:
small.cc:2:13: internal compiler error: tree check: expected identifier_node,
have bit_not_expr in find_namespace_slot, at cp/name-lookup.c:97
2 | using a:: ~ a;
| ^
0x7c7fd7 tree_check_failed(tree_node const*, char const*, int, char const*,
...)
../../gcc/tree.c:9687
0x63f701 tree_check(tree_node*, char const*, int, char const*, tree_code)
../../gcc/tree.h:3303
0x63f701 find_namespace_slot
../../gcc/cp/name-lookup.c:97
0x983071 name_lookup::search_namespace_only(tree_node*)
../../gcc/cp/name-lookup.c:544
0x983132 name_lookup::search_namespace(tree_node*)
../../gcc/cp/name-lookup.c:561
0x983132 name_lookup::search_namespace(tree_node*)
../../gcc/cp/name-lookup.c:554
0x983226 name_lookup::search_qualified(tree_node*, bool)
../../gcc/cp/name-lookup.c:622
0x983226 name_lookup::search_qualified(tree_node*, bool)
../../gcc/cp/name-lookup.c:614
0x986a1b qualified_namespace_lookup
../../gcc/cp/name-lookup.c:6045
0x986b8d lookup_using_decl
../../gcc/cp/name-lookup.c:4619
0x987070 finish_nonmember_using_decl(tree_node*, tree_node*)
../../gcc/cp/name-lookup.c:5132
0x9c7fd2 cp_parser_using_declaration
../../gcc/cp/parser.c:20025
0x9d763e cp_parser_declaration
../../gcc/cp/parser.c:13510
0x9d7d2b cp_parser_translation_unit
../../gcc/cp/parser.c:4793
0x9d7d2b c_parse_file()
../../gcc/cp/parser.c:44081
0xaf2e9d c_common_parse_file()
../../gcc/c-family/c-opts.c:1188
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.
My GCC version is
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/home/haoxin/corpus-compilers/gcc-trunk/gcc-master/build/libexec/gcc/x86_64-pc-linux-gnu/11.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../configure
--prefix=/home/haoxin/corpus-compilers/gcc-trunk/gcc-master/build/
--enable-languages=c,c++ CC=gcc CXX=g++
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 11.0.0 20200801 (experimental) (GCC)
