https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124612
Bug ID: 124612
Summary: ICE: in poplevel_class, at cp/name-lookup.cc:5823
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:
class a { template <enum alignas(a a ::a
Command:
g++ test.cpp
Output:
test.cpp:2:33: internal compiler error: in poplevel_class, at
cp/name-lookup.cc:5823
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
0x8b75c0 poplevel_class()
../../gcc-trunk/gcc/cp/name-lookup.cc:5823
0xc55658 popclass()
../../gcc-trunk/gcc/cp/class.cc:8691
0xc55c99 pop_nested_class()
../../gcc-trunk/gcc/cp/class.cc:8845
0xe4a4b8 cp_parser_enum_specifier
../../gcc-trunk/gcc/cp/parser.cc:24105
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
0xe4f2c6 cp_parser_parameter_declaration
../../gcc-trunk/gcc/cp/parser.cc:28451
0xe5125b cp_parser_template_parameter
../../gcc-trunk/gcc/cp/parser.cc:20827
0xe5125b cp_parser_template_parameter_list
../../gcc-trunk/gcc/cp/parser.cc:20511
0xe6f975 cp_parser_explicit_template_declaration
../../gcc-trunk/gcc/cp/parser.cc:36316
0xe38c95 cp_parser_member_specification_opt
../../gcc-trunk/gcc/cp/parser.cc:30794
0xe38c95 cp_parser_class_specifier
../../gcc-trunk/gcc/cp/parser.cc:29711
0xe3a38f cp_parser_type_specifier
../../gcc-trunk/gcc/cp/parser.cc:22337
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
/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_2559410pop.cpp -dumpbase-ext .cpp -mtune=generic -march=x86-64
-o /tmp/cc6FLP8Z.s
Goes back to a while: https://godbolt.org/z/149cT67sW
The test case was generated by a fuzzer.
