Test case for historical reasons

[libfirm] / ir / be / bestate.c

diff --git a/ir/be/bestate.c b/ir/be/bestate.c
index 81deb82..e5f3c5e 100644 (file)
--- a/ir/be/bestate.c
+++ b/ir/be/bestate.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 1995-2007 University of Karlsruhe.  All right reserved.
+ * Copyright (C) 1995-2008 University of Karlsruhe.  All right reserved.
  *
  * This file is part of libFirm.
  *
@@ -186,7 +186,7 @@ void spill_phi(minibelady_env_t *env, ir_node *phi)
 
        /* create a new phi-M with bad preds */
        for(i = 0; i < arity; ++i) {
-               in[i] = new_r_Bad(irg);
+               in[i] = new_r_Unknown(irg, mode_M);
        }
 
        DBG((dbg, LEVEL_2, "\tcreate Phi-M for %+F\n", phi));
@@ -403,13 +403,13 @@ void belady(minibelady_env_t *env, ir_node *block)
                /* check which state is desired for the node */
                arity = get_irn_arity(node);
                for(i = 0; i < arity; ++i) {
+                       const arch_register_t *reg;
                        ir_node *in = get_irn_n(node, i);
 
                        if(!mode_is_data(get_irn_mode(in)))
                                continue;
 
-                       const arch_register_t *reg =
-                               arch_get_irn_register(env->arch_env, in);
+                       reg = arch_get_irn_register(env->arch_env, in);
                        if(reg == env->reg) {
                                assert(need_val == NULL);
                                need_val = in;
@@ -430,13 +430,13 @@ void belady(minibelady_env_t *env, ir_node *block)
                        const ir_edge_t *edge;
 
                        foreach_out_edge(node, edge) {
+                               const arch_register_t *reg;
                                ir_node *proj = get_edge_src_irn(edge);
 
                                if(!mode_is_data(get_irn_mode(proj)))
                                        continue;
 
-                               const arch_register_t *reg =
-                                       arch_get_irn_register(env->arch_env, proj);
+                               reg = arch_get_irn_register(env->arch_env, proj);
                                if(reg == env->reg) {
                                        current_state = proj;
                                        DBG((dbg, LEVEL_3, "\t... current_state <- %+F\n", current_state));
@@ -542,7 +542,6 @@ void be_assure_state(be_irg_t *birg, const arch_register_t *reg, void *func_env,
        be_lv_t *lv = be_assure_liveness(birg);
 
        be_liveness_assure_sets(lv);
-       be_assure_dom_front(birg);
        /* construct control flow loop tree */
        if(! (get_irg_loopinfo_state(irg) & loopinfo_cf_consistent)) {
                construct_cf_backedges(irg);
@@ -560,8 +559,7 @@ void be_assure_state(be_irg_t *birg, const arch_register_t *reg, void *func_env,
        ir_nodemap_init(&env.spill_infos);
 
        assure_doms(irg);
-       set_using_visited(irg);
-       set_using_irn_link(irg);
+       ir_reserve_resources(irg, IR_RESOURCE_IRN_VISITED | IR_RESOURCE_IRN_LINK);
        inc_irg_visited(irg);
 
        /* process blocks */
@@ -570,8 +568,7 @@ void be_assure_state(be_irg_t *birg, const arch_register_t *reg, void *func_env,
        /* fix block end_states that don't match the next blocks start_state */
        irg_block_walk_graph(irg, fix_block_borders, NULL, &env);
 
-       clear_using_visited(irg);
-       clear_using_irn_link(irg);
+       ir_free_resources(irg, IR_RESOURCE_IRN_VISITED | IR_RESOURCE_IRN_LINK);
 
        /* reconstruct ssa-form */
        info = env.spills;