https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97895
Bug ID: 97895
Summary: [11 Regression] ICE in do_auto_deduction, at
cp/pt.c:29255
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: gs...@t-online.de
Target Milestone: ---
Changed recently between 20201018 and 20201108 :
$ cat z1.cc
namespace std {
template<typename T> struct initializer_list {
const T *ptr;
decltype(sizeof 0) n;
};
auto a = {};
}
$ g++-11-20201115 -c z1.cc
z1.cc:6:13: internal compiler error: Segmentation fault
6 | auto a = {};
| ^
0xc727ef crash_signal
../../gcc/toplev.c:330
0x7642c1 vec<constructor_elt, va_gc, vl_embed>::end()
../../gcc/vec.h:585
0x7642c1 do_auto_deduction(tree_node*, tree_node*, tree_node*, int,
auto_deduction_context, tree_node*, int)
../../gcc/cp/pt.c:29255
0x6c4cf2 cp_finish_decl(tree_node*, tree_node*, bool, tree_node*, int)
../../gcc/cp/decl.c:7570
0x74d7f7 cp_parser_init_declarator
../../gcc/cp/parser.c:21362
0x72f42a cp_parser_simple_declaration
../../gcc/cp/parser.c:13943
0x75307a cp_parser_declaration
../../gcc/cp/parser.c:13640
0x753d34 cp_parser_declaration_seq_opt
../../gcc/cp/parser.c:13485
0x753d34 cp_parser_namespace_body
../../gcc/cp/parser.c:19955
0x753d34 cp_parser_namespace_definition
../../gcc/cp/parser.c:19933
0x752eaf cp_parser_declaration
../../gcc/cp/parser.c:13620
0x75390a cp_parser_translation_unit
../../gcc/cp/parser.c:4806
0x75390a c_parse_file()
../../gcc/cp/parser.c:44595
0x81d252 c_common_parse_file()
../../gcc/c-family/c-opts.c:1196
