static ir_node *conv_transform(ir_node *node, ir_mode *dest_mode)
{
- ir_mode *mode = get_irn_mode(node);
- size_t arity;
- size_t i;
+ ir_mode *mode = get_irn_mode(node);
+ size_t arity;
+ size_t conv_arity;
+ size_t i;
+ ir_node *new_node;
+ ir_graph *irg;
+ ir_node **ins;
if (mode == dest_mode)
return node;
return place_conv(node, dest_mode);
}
+ // We want to create a new node with the right mode
+ arity = get_irn_arity(node);
+ irg = get_irn_irg(node);
+ ins = ALLOCAN(ir_node *, arity);
+
// The shift count does not participate in the conv optimisation
- arity = is_Shl(node) ? 1 : get_irn_arity(node);
- for (i = 0; i < arity; i++) {
+ conv_arity = is_Shl(node) ? 1 : arity;
+ for (i = 0; i < conv_arity; i++) {
ir_node *pred = get_irn_n(node, i);
ir_node *transformed;
if (get_conv_costs(pred, dest_mode) > 0) {
} else {
transformed = conv_transform(pred, dest_mode);
}
- set_irn_n(node, i, transformed);
+ ins[i] = transformed;
+ }
+
+ for (i = conv_arity; i < arity; i++) {
+ ins[i] = get_irn_n(node, i);
}
- set_irn_mode(node, dest_mode);
- return node;
+
+ new_node = new_ir_node(get_irn_dbg_info(node),
+ irg,
+ get_nodes_block(node),
+ get_irn_op(node),
+ dest_mode,
+ arity,
+ ins);
+ copy_node_attr(irg, node, new_node);
+
+ return new_node;
}
/* TODO, backends (at least ia32) can't handle it at the moment,
transformed = conv_transform(pred, mode);
if (node != transformed) {
+ vrp_attr *vrp;
+
exchange(node, transformed);
- vrp_attr *vrp = vrp_get_info(transformed);
+ vrp = vrp_get_info(transformed);
if (vrp && vrp->valid) {
vrp->range_type = VRP_VARYING;
vrp->bits_set = tarval_convert_to(vrp->bits_set, mode);