https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124517
Bug ID: 124517
Summary: ICE: in update_binding, at cp/name-lookup.cc:3099
Product: gcc
Version: 16.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: suyuchang at whu dot edu.cn
Target Milestone: ---
Code:
namespace a {
class a;
enum, a,
}
enum a ::a {
Command:
g++ test.cpp
Output:
test.cpp:5:10: internal compiler error: in update_binding, at
cp/name-lookup.cc:3082
5 | enum a ::a {
| ^
0x2cb8d8e internal_error(char const*, ...)
../../gcc-trunk/gcc/diagnostic-global-context.cc:787
0xc05055 fancy_abort(char const*, int, char const*)
../../gcc-trunk/gcc/diagnostics/context.cc:1813
0x8b8e38 update_binding
../../gcc-trunk/gcc/cp/name-lookup.cc:3082
0xdfc26b pushdecl(tree_node*, bool)
../../gcc-trunk/gcc/cp/name-lookup.cc:4187
0xdfd742 do_pushdecl_with_scope
../../gcc-trunk/gcc/cp/name-lookup.cc:5292
0xdfdcaa pushtag(tree_node*, tree_node*, TAG_how)
../../gcc-trunk/gcc/cp/name-lookup.cc:8675
0xcf853e start_enum(tree_node*, tree_node*, tree_node*, tree_node*, bool,
bool*)
../../gcc-trunk/gcc/cp/decl.cc:18890
0xe49d54 cp_parser_enum_specifier
../../gcc-trunk/gcc/cp/parser.cc:23949
0xe3a423 cp_parser_type_specifier
../../gcc-trunk/gcc/cp/parser.cc:22307
0xe5b700 cp_parser_decl_specifier_seq
../../gcc-trunk/gcc/cp/parser.cc:18843
0xe70847 cp_parser_simple_declaration
../../gcc-trunk/gcc/cp/parser.cc:17943
0xe7febb cp_parser_declaration
../../gcc-trunk/gcc/cp/parser.cc:17601
0xe83628 cp_parser_toplevel_declaration
../../gcc-trunk/gcc/cp/parser.cc:17705
0xe83628 cp_parser_translation_unit
../../gcc-trunk/gcc/cp/parser.cc:5596
0xe83628 c_parse_file()
../../gcc-trunk/gcc/cp/parser.cc:57467
0x1025990 c_common_parse_file()
../../gcc-trunk/gcc/c-family/c-opts.cc:1422
/home/syc/gcc-16.0/libexec/gcc/x86_64-pc-linux-gnu/16.0.1/cc1plus -quiet
-imultiarch x86_64-linux-gnu -D_GNU_SOURCE test.cpp -quiet -dumpdir a-
-dumpbase test.cpp -dumpbase-ext .cpp -mtune=generic -march=x86-64 -o
/tmp/ccoL1CZt.s
Goes back to GCC 11.1
The test case was generated by a fuzzer.
