https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108542
Bug ID: 108542
Summary: [13 Regression] ICE in instantiate_type, at
cp/class.cc:8833
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: gs...@t-online.de
Target Milestone: ---
Started between 20221106 and 20221120 :
$ cat z1.cc
template<typename T>
void f (T n) {}
[[pre: f]]
$ g++-13-20230122 -c z1.cc
z1.cc:3:8: internal compiler error: in instantiate_type, at cp/class.cc:8833
3 | [[pre: f]]
| ^
0x7d34ef instantiate_type(tree_node*, tree_node*, int)
../../gcc/cp/class.cc:8833
0x7b2c27 implicit_conversion_error
../../gcc/cp/call.cc:4658
0x7c05bc perform_implicit_conversion_flags(tree_node*, tree_node*, int, int)
../../gcc/cp/call.cc:13366
0x97e5cc contextual_conv_bool(tree_node*, int)
../../gcc/cp/typeck.cc:6952
0x97e5cc condition_conversion(tree_node*)
../../gcc/cp/typeck.cc:6961
0x81665a grok_contract(tree_node*, tree_node*, tree_node*, cp_expr, unsigned
int)
../../gcc/cp/contracts.cc:783
0x8f0a2f cp_parser_contract_attribute_spec
../../gcc/cp/parser.cc:29740
0x8f0a2f cp_parser_std_attribute_spec
../../gcc/cp/parser.cc:29886
0x8f0a2f cp_parser_std_attribute_spec_seq
../../gcc/cp/parser.cc:30011
0x8f0f51 cp_parser_attributes_opt
../../gcc/cp/parser.cc:28909
0x8e11e7 cp_parser_decl_specifier_seq
../../gcc/cp/parser.cc:15734
0x8e1aa1 cp_parser_simple_declaration
../../gcc/cp/parser.cc:15217
0x90c638 cp_parser_declaration
../../gcc/cp/parser.cc:15030
0x90d010 cp_parser_translation_unit
../../gcc/cp/parser.cc:5090
0x90d010 c_parse_file()
../../gcc/cp/parser.cc:49400
0x9f4e01 c_common_parse_file()
../../gcc/c-family/c-opts.cc:1248
