https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80356
Bug ID: 80356
Summary: [7 Regression] ICE in convert_nontype_argument, at
cp/pt.c:6827
Product: gcc
Version: 7.0.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: doko at gcc dot gnu.org
Target Milestone: ---
Created attachment 41151
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41151&action=edit
preprocessed source
the reduced test case from PR79294 doesn't ICE anymore, but the unreduced test
case still does. Here's a new reduction.
Seen with trunk 20170407.
$ cat python.ii
template <int (&)(int, int)> struct a;
template <int (&b)(int, int)> a < b
$ g++ -c -std=c++11 python.ii
python.ii:2:35: internal compiler error: in convert_nontype_argument, at
cp/pt.c:6827
template <int (&b)(int, int)> a < b
^
0x5f167b convert_nontype_argument
../../src/gcc/cp/pt.c:6826
0x5f167b convert_template_argument
../../src/gcc/cp/pt.c:7667
0x5f215c coerce_template_parms
../../src/gcc/cp/pt.c:8127
0x5f4bb9 lookup_template_class_1
../../src/gcc/cp/pt.c:8663
0x5f4bb9 lookup_template_class(tree_node*, tree_node*, tree_node*, tree_node*,
int, int)
../../src/gcc/cp/pt.c:9008
0x68edbd finish_template_type(tree_node*, tree_node*, int)
../../src/gcc/cp/semantics.c:3151
0x63e5f4 cp_parser_template_id
../../src/gcc/cp/parser.c:15495
0x63e74f cp_parser_class_name
../../src/gcc/cp/parser.c:21953
0x648d27 cp_parser_qualifying_entity
../../src/gcc/cp/parser.c:6286
0x648d27 cp_parser_nested_name_specifier_opt
../../src/gcc/cp/parser.c:5972
0x635660 cp_parser_constructor_declarator_p
../../src/gcc/cp/parser.c:25945
0x635660 cp_parser_decl_specifier_seq
../../src/gcc/cp/parser.c:13319
0x635d05 cp_parser_single_declaration
../../src/gcc/cp/parser.c:26625
0x651a9c cp_parser_template_declaration_after_parameters
../../src/gcc/cp/parser.c:26319
0x6517fb cp_parser_explicit_template_declaration
../../src/gcc/cp/parser.c:26554
0x6517fb cp_parser_template_declaration_after_export
../../src/gcc/cp/parser.c:26573
0x636389 cp_parser_declaration
../../src/gcc/cp/parser.c:12449
0x65be8b cp_parser_declaration_seq_opt
../../src/gcc/cp/parser.c:12376
0x65c172 cp_parser_translation_unit
../../src/gcc/cp/parser.c:4366
0x65c172 c_parse_file()
../../src/gcc/cp/parser.c:38427
Please submit a full bug report,
with preprocessed source if appropriate.
