https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101515
Bug ID: 101515
Summary: [11/12 Regression] ICE in pp_cxx_unqualified_id, at
cp/cxx-pretty-print.c:128
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: gs...@t-online.de
Target Milestone: ---
Changed between 20210110 and 20210117 :
$ cat z1.cc
struct S
{
int j;
};
struct T : public S
{
virtual void h () {}
};
struct ptrmemfunc
{
void (*ptr) ();
};
typedef void (S::*sp)();
int main ()
{
T t;
sp x;
ptrmemfunc *xp = (ptrmemfunc *) &x;
if (xp->ptr != ((void (*)())(sizeof(void *))))
return 1;
}
$ g++-12-20210718 -c z1.cc -O0 -Wall
$
$ g++-12-20210718 -c z1.cc -O1 -Wall
'
during GIMPLE pass: uninit
In function 'int main()':
Segmentation fault
14 | int main ()
| ^~~~
0xd6d5af crash_signal
../../gcc/toplev.c:328
0x7389fc pp_cxx_unqualified_id
../../gcc/cp/cxx-pretty-print.c:128
0x738c48 pp_cxx_unqualified_id
../../gcc/cp/cxx-pretty-print.c:174
0x738ef7 pp_cxx_nested_name_specifier
../../gcc/cp/cxx-pretty-print.c:254
0x7395cb pp_cxx_qualified_id
../../gcc/cp/cxx-pretty-print.c:303
0x8f2e12 print_mem_ref
../../gcc/c-family/c-pretty-print.c:2079
0x76b79d dump_expr
../../gcc/cp/error.c:2403
0x76eb15 expr_to_string(tree_node*)
../../gcc/cp/error.c:3224
0x76f2fc cp_printer
../../gcc/cp/error.c:4390
0x1770e9e pp_format(pretty_printer*, text_info*)
../../gcc/pretty-print.c:1475
0x1764d54 diagnostic_report_diagnostic(diagnostic_context*, diagnostic_info*)
../../gcc/diagnostic.c:1331
0x176530a diagnostic_impl
../../gcc/diagnostic.c:1493
0x1765862 warning_at(unsigned int, int, char const*, ...)
../../gcc/diagnostic.c:1630
0xf4cf15 maybe_warn_operand
../../gcc/tree-ssa-uninit.c:446
0xf50ece warn_uninitialized_vars
../../gcc/tree-ssa-uninit.c:688
0xf55b23 execute
../../gcc/tree-ssa-uninit.c:3053
