if (n <= 0)
return 0;
- store = skip_Proj(get_Phi_pred(phi, 0));
+ /* must be only one user */
+ projM = get_Phi_pred(phi, 0);
+ if (get_irn_n_edges(projM) != 1)
+ return 0;
+
+ store = skip_Proj(projM);
old_store = store;
if (get_irn_op(store) != op_Store)
return 0;
exc = info->exc_block;
for (i = 1; i < n; ++i) {
- ir_node *pred = skip_Proj(get_Phi_pred(phi, i));
+ ir_node *pred = get_Phi_pred(phi, i);
+
+ if (get_irn_n_edges(pred) != 1)
+ return 0;
+ pred = skip_Proj(pred);
if (get_irn_op(pred) != op_Store)
return 0;
first because we otherwise may loose a store when exchanging its
memory Proj.
*/
- for (i = 0; i < n; ++i)
+ for (i = n - 1; i >= 0; --i) {
+ ir_node *store;
+
projMs[i] = get_Phi_pred(phi, i);
+ assert(is_Proj(projMs[i]));
- /* first step: collect all inputs and kill the node */
- for (i = n - 1; i >= 0; --i) {
- ir_node *store = get_Proj_pred(projMs[i]);
- info = get_irn_link(store);
+ store = get_Proj_pred(projMs[i]);
+ info = get_irn_link(store);
inM[i] = get_Store_mem(store);
inD[i] = get_Store_value(store);
idx[i] = info->exc_idx;
- kill_node(store);
}
block = get_nodes_block(phi);
/* third step: create a new data Phi */
phiD = new_rd_Phi(get_irn_dbg_info(phi), current_ir_graph, block, n, inD, mode);
- /* rewire memory */
+ /* rewire memory and kill the node */
for (i = n - 1; i >= 0; --i) {
- ir_node *proj = projMs[i];
+ ir_node *proj = projMs[i];
- exchange(proj, inM[i]);
+ if(is_Proj(proj)) {
+ ir_node *store = get_Proj_pred(proj);
+ exchange(proj, inM[i]);
+ kill_node(store);
+ }
}
/* fourth step: create the Store */