https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108613
Bug ID: 108613
Summary: GCC12 internal compiler error on __int128_t in
type_traits header
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: mserdarsanli at gmail dot com
Target Milestone: ---
https://godbolt.org/z/M1o34e6cx
Below code crashes GCC versions starting with GCC 12. It is only stuff from std
library headers, I've copied bits from preprocessed output.
template< class > struct remove_cv;
template< class _Tp> using __remove_cv_t = typename remove_cv< _Tp> ::type;
template< class _Tp, _Tp __v>
struct integral_constant {
static constexpr inline _Tp value = (__v);
typedef _Tp value_type;
typedef integral_constant type;
constexpr operator value_type() const noexcept { return value; }
constexpr value_type operator()() const noexcept { return value; }
};
using false_type = integral_constant< bool, false> ;
template< class ...> struct __or_;
template<> struct __or_< > : public false_type {};
template< class , class > struct is_same;
template< class _Tp, class ..._Types> using __is_one_of = __or_< is_same< _Tp,
_Types> ...> ;
template< class _Tp> using __is_signed_integer = __is_one_of< _Tp ,
signed char, signed short, signed int, signed long, signed long long,
signed __int128_t> ;
-----------
Stacktrace:
0xe2534f crash_signal
/root/source/gcc-12.2.0/gcc/toplev.cc:322
0x7c0535 grokdeclarator(cp_declarator const*, cp_decl_specifier_seq*,
decl_context, int, tree_node**)
/root/source/gcc-12.2.0/gcc/cp/decl.cc:12373
0x7c73fc groktypename(cp_decl_specifier_seq*, cp_declarator const*, bool)
/root/source/gcc-12.2.0/gcc/cp/decl.cc:5514
0x8797d5 cp_parser_type_id_1
/root/source/gcc-12.2.0/gcc/cp/parser.cc:24250
0x87c4f3 cp_parser_template_type_arg
/root/source/gcc-12.2.0/gcc/cp/parser.cc:24272
0x87c659 cp_parser_template_argument
/root/source/gcc-12.2.0/gcc/cp/parser.cc:18803
0x87c659 cp_parser_template_argument_list
/root/source/gcc-12.2.0/gcc/cp/parser.cc:18727
0x87c659 cp_parser_enclosed_template_argument_list
/root/source/gcc-12.2.0/gcc/cp/parser.cc:32059
0x87da7f cp_parser_template_id
/root/source/gcc-12.2.0/gcc/cp/parser.cc:18266
0x87e239 cp_parser_class_name
/root/source/gcc-12.2.0/gcc/cp/parser.cc:25713
0x875d8e cp_parser_qualifying_entity
/root/source/gcc-12.2.0/gcc/cp/parser.cc:7116
0x875d8e cp_parser_nested_name_specifier_opt
/root/source/gcc-12.2.0/gcc/cp/parser.cc:6798
0x88cf6c cp_parser_simple_type_specifier
/root/source/gcc-12.2.0/gcc/cp/parser.cc:19765
0x86aea5 cp_parser_type_specifier
/root/source/gcc-12.2.0/gcc/cp/parser.cc:19424
0x87b3d0 cp_parser_type_specifier_seq
/root/source/gcc-12.2.0/gcc/cp/parser.cc:24364
0x879744 cp_parser_type_id_1
/root/source/gcc-12.2.0/gcc/cp/parser.cc:24164
0x87c117 cp_parser_type_id
/root/source/gcc-12.2.0/gcc/cp/parser.cc:24260
0x87c117 cp_parser_alias_declaration
/root/source/gcc-12.2.0/gcc/cp/parser.cc:21778
0x897f37 cp_parser_template_declaration_after_parameters
/root/source/gcc-12.2.0/gcc/cp/parser.cc:31316
0x89827a cp_parser_explicit_template_declaration
/root/source/gcc-12.2.0/gcc/cp/parser.cc:31598
