https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112989
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
#1 0x00000000012eeda4 in gt_ggc_mx_lang_tree_node (x_p=0xfffff6bd4900) at
./gt-cp-tree.h:108
108 xlimit = ((union lang_tree_node *) c_tree_chain_next
(&(*xlimit).generic));
(gdb) up
#2 0x000000000240ca80 in gt_ggc_mx_registered_function (x_p=0xfffff6b854f0) at
./gt-aarch64-sve-builtins.h:29
29 gt_ggc_m_9tree_node ((*x).decl);
(gdb) p x
$8 = (aarch64_sve::registered_function * const) 0xfffff6b854f0
(gdb) p *x
$9 = {instance = {base_name = 0x3c08b80 "svmla", base = 0x3c21cb8
<aarch64_sve::(anonymous namespace)::svmla_za_obj>, shape = 0x3c165a0
<aarch64_sve::binary_za_slice_opt_single_obj>, mode_suffix_id =
aarch64_sve::MODE_single, type_suffix_ids = {aarch64_sve::TYPE_SUFFIX_za64,
aarch64_sve::TYPE_SUFFIX_s16},
group_suffix_id = aarch64_sve::GROUP_vg4x1, pred = aarch64_sve::PRED_none},
decl = 0xfffff6bd4900, required_extensions = 5497558138885, overloaded_p =
false}
(gdb) p x->decl
$10 = (tree) 0xfffff6bd4900
(gdb) p debug_tree(x->decl)
<ggc_freed 0xfffff6bd4900>
