tree
replace_invariant_exprs (tree *node)
{
size_t ix = 0;
tree node_list = NULL_TREE;
tree t = NULL_TREE, new_var = NULL_TREE, new_node;
struct inv_list data;
data.list_values = NULL;
data.replacement = NULL;
data.additional_tcodes = NULL;
walk_tree (node, find_inv_trees, (void *)&data, NULL);
if (vec_safe_length (data.list_values))
{
node_list = push_stmt_list ();
for (ix = 0; vec_safe_iterate (data.list_values, ix, &t); ix++)
{
new_var = build_decl (EXPR_LOCATION (t), VAR_DECL, NULL_TREE,
TREE_TYPE (t));
gcc_assert (new_var != NULL_TREE && new_var != error_mark_node);
new_node = build2 (MODIFY_EXPR, TREE_TYPE (t), new_var, t);
add_stmt (new_node);
vec_safe_push (data.replacement, new_var);
}
walk_tree (node, replace_inv_trees, (void *)&data, NULL);
node_list = pop_stmt_list (node_list);
}
return node_list;
}
ipa_ref *
symtab_node::iterate_reference (unsigned i, ipa_ref *&ref)
{
vec_safe_iterate (ref_list.references, i, &ref);
return ref;
}
static tree
replace_invariant_exprs (tree *node)
{
size_t ix = 0;
tree node_list = NULL_TREE;
tree t = NULL_TREE, new_var = NULL_TREE;
struct inv_list data;
data.list_values = NULL;
data.replacement = NULL;
data.additional_tcodes = NULL;
cp_walk_tree (node, find_inv_trees, (void *) &data, NULL);
if (vec_safe_length (data.list_values))
{
node_list = push_stmt_list ();
for (ix = 0; vec_safe_iterate (data.list_values, ix, &t); ix++)
{
/* Sometimes, when comma_expr has a function call in it, it will
typecast it to void. Find_inv_trees finds those nodes and so
if it void type, then don't bother creating a new var to hold
the return value. */
if (VOID_TYPE_P (TREE_TYPE (t)))
{
finish_expr_stmt (t);
new_var = void_node;
}
else
new_var = get_temp_regvar (TREE_TYPE (t), t);
vec_safe_push (data.replacement, new_var);
}
cp_walk_tree (node, replace_inv_trees, (void *) &data, NULL);
node_list = pop_stmt_list (node_list);
}
return node_list;
}