https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86218
Bug ID: 86218
Summary: [9 Regression] ICE in compare_ics, at cp/call.c:9769
Product: gcc
Version: 9.0
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 20180603 and 20180610 :
$ cat z1.cc
template <int a>
void f (const char (&)[a]) { }
void f (int) { }
template <class...a>
void
g ()
{
f ({2.0});
}
$ gcc-9-20180603 -c z1.cc
$
$ gcc-9-20180617 -c z1.cc
z1.cc: In function 'void g()':
z1.cc:8:11: internal compiler error: Segmentation fault
f ({2.0});
^
0xbabeff crash_signal
../../gcc/toplev.c:324
0x632448 compare_ics
../../gcc/cp/call.c:9769
0x635552 joust
../../gcc/cp/call.c:10158
0x636433 joust
../../gcc/cp/call.c:10094
0x636433 tourney
../../gcc/cp/call.c:10560
0x63ccf8 perform_overload_resolution
../../gcc/cp/call.c:4209
0x63e0d2 build_new_function_call(tree_node*, vec<tree_node*, va_gc,
vl_embed>**, int)
../../gcc/cp/call.c:4274
0x74ae15 finish_call_expr(tree_node*, vec<tree_node*, va_gc, vl_embed>**, bool,
bool, int)
../../gcc/cp/semantics.c:2544
0x6f8ced cp_parser_postfix_expression
../../gcc/cp/parser.c:7219
0x700507 cp_parser_unary_expression
../../gcc/cp/parser.c:8295
0x6e0e72 cp_parser_cast_expression
../../gcc/cp/parser.c:9063
0x6e1511 cp_parser_binary_expression
../../gcc/cp/parser.c:9164
0x6e1bc3 cp_parser_assignment_expression
../../gcc/cp/parser.c:9459
0x6e2264 cp_parser_expression
../../gcc/cp/parser.c:9628
0x6e4d94 cp_parser_expression_statement
../../gcc/cp/parser.c:11106
0x6ec8b7 cp_parser_statement
../../gcc/cp/parser.c:10910
0x6ed5b7 cp_parser_statement_seq_opt
../../gcc/cp/parser.c:11249
0x6ed68f cp_parser_compound_statement
../../gcc/cp/parser.c:11203
0x6fed01 cp_parser_function_body
../../gcc/cp/parser.c:21886
0x6fed01 cp_parser_ctor_initializer_opt_and_function_body
../../gcc/cp/parser.c:21921
