List schedule selectors have new function which allows the backend to

[libfirm] / ir / be / benode.c

diff --git a/ir/be/benode.c b/ir/be/benode.c
index ca32ee4..686fb7c 100644 (file)
--- a/ir/be/benode.c
+++ b/ir/be/benode.c
@@ -506,6 +506,7 @@ static int dump_node(ir_node *irn, FILE *f, dump_reason_t reason)
                case dump_node_nodeattr_txt:
                        break;
                case dump_node_info_txt:
+                       fprintf(f, "reg class: %s\n", at->cls->name);
                        for(i = 0; i < at->n_outs; ++i) {
                                const arch_register_t *reg = at->reg_data[i].reg;
                                fprintf(f, "reg #%d: %s\n", i, reg ? reg->name : "n/a");
@@ -514,7 +515,7 @@ static int dump_node(ir_node *irn, FILE *f, dump_reason_t reason)
                        if(get_irn_be_opcode(irn) == beo_Spill) {
                                be_spill_attr_t *a = (be_spill_attr_t *) at;
                                ir_fprintf(f, "spill context: %+F\n", a->spill_ctx);
-                               ir_fprintf(f, "spill offset: %u\n", a->offset);
+                               ir_fprintf(f, "spill offset: %04x (%u)\n", a->offset);
                        }
                        break;
        }
@@ -587,6 +588,10 @@ ir_node *insert_Perm_after(const arch_env_t *arch_env,
        }
 
        n = pset_count(live);
+
+       if(n == 0)
+               return NULL;
+
        nodes = malloc(n * sizeof(nodes[0]));
 
        DBG((dbg, LEVEL_1, "live:\n"));