void
symtab_unregister_node (symtab_node *node)
{
void **slot;
ipa_remove_all_references (&node->ref_list);
ipa_remove_all_referring (&node->ref_list);
if (node->same_comdat_group)
{
symtab_node *prev;
for (prev = node->same_comdat_group;
prev->same_comdat_group != node;
prev = prev->same_comdat_group)
;
if (node->same_comdat_group == prev)
prev->same_comdat_group = NULL;
else
prev->same_comdat_group = node->same_comdat_group;
node->same_comdat_group = NULL;
}
if (node->previous)
node->previous->next = node->next;
else
symtab_nodes = node->next;
if (node->next)
node->next->previous = node->previous;
node->next = NULL;
node->previous = NULL;
slot = htab_find_slot (symtab_hash, node, NO_INSERT);
/* During LTO symtab merging we temporarily corrupt decl to symtab node
hash. */
gcc_assert ((slot && *slot) || in_lto_p);
if (slot && *slot && *slot == node)
{
symtab_node *replacement_node = NULL;
if (cgraph_node *cnode = dyn_cast <cgraph_node> (node))
replacement_node = cgraph_find_replacement_node (cnode);
if (!replacement_node)
htab_clear_slot (symtab_hash, slot);
else
*slot = replacement_node;
}
if (!is_a <varpool_node> (node) || !DECL_HARD_REGISTER (node->decl))
unlink_from_assembler_name_hash (node, false);
}
void
symtab_unregister_node (symtab_node node)
{
void **slot;
ipa_remove_all_references (&node->symbol.ref_list);
ipa_remove_all_referring (&node->symbol.ref_list);
if (node->symbol.same_comdat_group)
{
symtab_node prev;
for (prev = node->symbol.same_comdat_group;
prev->symbol.same_comdat_group != node;
prev = prev->symbol.same_comdat_group)
;
if (node->symbol.same_comdat_group == prev)
prev->symbol.same_comdat_group = NULL;
else
prev->symbol.same_comdat_group = node->symbol.same_comdat_group;
node->symbol.same_comdat_group = NULL;
}
if (node->symbol.previous)
node->symbol.previous->symbol.next = node->symbol.next;
else
symtab_nodes = node->symbol.next;
if (node->symbol.next)
node->symbol.next->symbol.previous = node->symbol.previous;
node->symbol.next = NULL;
node->symbol.previous = NULL;
slot = htab_find_slot (symtab_hash, node, NO_INSERT);
if (*slot == node)
{
symtab_node replacement_node = NULL;
if (symtab_function_p (node))
replacement_node = (symtab_node)cgraph_find_replacement_node (cgraph (node));
if (!replacement_node)
htab_clear_slot (symtab_hash, slot);
else
*slot = replacement_node;
}
unlink_from_assembler_name_hash (node);
}