*/
static void split_block(ir_node* block, int i, int j)
{
- ir_node* pred_block = get_nodes_block(get_irn_n(block, i));
- int arity = get_irn_arity(block);
- int new_pred_arity;
- ir_node *phi, *next;
- ir_node **ins = ALLOCAN(ir_node*, arity+1);
+ ir_node *pred_block = get_nodes_block(get_irn_n(block, i));
+ int arity = get_irn_arity(block);
+ ir_node **ins = ALLOCAN(ir_node*, arity + 1);
+ int new_pred_arity;
+ ir_node *phi;
+ ir_node *next;
ir_node **pred_ins;
- int k;
+ int k;
DB((dbg, LEVEL_1, "Splitting predecessor %d of predecessor %d of %+F\n", j, i, block));
ins[k++] = copy;
for (; k < arity; ++k) ins[k] = get_irn_n(phi, k);
ins[k++] = get_irn_n(phi, i);
- assert(k == arity+1);
set_irn_in(phi, k, ins);
}
ins[k++] = get_irn_n(pred_block, j);
for (; k < arity; ++k) ins[k] = get_irn_n(block, k);
ins[k++] = get_irn_n(block, i);
- assert(k == arity+1);
set_irn_in(block, k, ins);
new_pred_arity = get_irn_arity(pred_block) - 1;
- pred_ins = ALLOCAN(ir_node*, new_pred_arity);
+ pred_ins = ALLOCAN(ir_node*, new_pred_arity);
for (phi = get_Block_phis(pred_block); phi != NULL; phi = next) {
- for (k = 0; k < j; ++k) pred_ins[k] = get_irn_n(phi, k);
- for (; k < new_pred_arity; ++k) pred_ins[k] = get_irn_n(phi, k + 1);
- assert(k == new_pred_arity);
next = get_Phi_next(phi);
- if (new_pred_arity > 1) {
- set_irn_in(phi, k, pred_ins);
- } else {
+ for (k = 0; k != j; ++k) pred_ins[k] = get_irn_n(phi, k);
+ for (; k != new_pred_arity; ++k) pred_ins[k] = get_irn_n(phi, k + 1);
+ if (k == 1) {
exchange(phi, pred_ins[0]);
+ } else {
+ set_irn_in(phi, k, pred_ins);
}
}
- for (k = 0; k < j; ++k) pred_ins[k] = get_irn_n(pred_block, k);
- for (; k < new_pred_arity; ++k) pred_ins[k] = get_irn_n(pred_block, k + 1);
- assert(k == new_pred_arity);
- if (new_pred_arity > 1) {
- set_irn_in(pred_block, k, pred_ins);
- } else {
+ for (k = 0; k != j; ++k) pred_ins[k] = get_irn_n(pred_block, k);
+ for (; k != new_pred_arity; ++k) pred_ins[k] = get_irn_n(pred_block, k + 1);
+ if (k == 1) {
exchange(pred_block, get_nodes_block(pred_ins[0]));
+ } else {
+ set_irn_in(pred_block, k, pred_ins);
}
}