becopyheur2: Use bitset_foreach_clear() instead of bitset_flip_all() + bitset_foreach().

diff --git a/ir/be/becopyheur2.c b/ir/be/becopyheur2.c
index b1336ed..0ec32d1 100644 (file)
--- a/ir/be/becopyheur2.c
+++ b/ir/be/becopyheur2.c
@@ -334,7 +334,6 @@ static void determine_color_costs(co2_t *env, co2_irn_t *ci, col_cost_pair_t *co
        const ir_node *irn = ci->irn;
        be_ifg_t *ifg      = env->co->cenv->ifg;
        int n_regs         = env->co->cls->n_regs;
-       bitset_t *forb     = bitset_alloca(n_regs);
        affinity_node_t *a = ci->aff;
 
        const ir_node *pos;
@@ -342,8 +341,8 @@ static void determine_color_costs(co2_t *env, co2_irn_t *ci, col_cost_pair_t *co
        int i;
 
        /* Put all forbidden colors into the aux bitset. */
-       admissible_colors(env, ci, forb);
-       bitset_flip_all(forb);
+       bitset_t *const admissible = bitset_alloca(n_regs);
+       admissible_colors(env, ci, admissible);
 
        for (i = 0; i < n_regs; ++i) {
                col_costs[i].col   = i;
@@ -374,7 +373,7 @@ static void determine_color_costs(co2_t *env, co2_irn_t *ci, col_cost_pair_t *co
        be_ifg_neighbours_break(&it);
 
        /* Set the costs to infinity for each color which is not allowed at this node. */
-       bitset_foreach(forb, elm) {
+       bitset_foreach_clear(admissible, elm) {
                col_costs[elm].costs  = INT_MAX;
        }
 
@@ -619,8 +618,7 @@ static void node_color_badness(co2_cloud_irn_t *ci, int *badness)
        neighbours_iter_t it;
 
        admissible_colors(env, &ci->inh, bs);
-       bitset_flip_all(bs);
-       bitset_foreach(bs, elm)
+       bitset_foreach_clear(bs, elm)
                badness[elm] = ci->costs;
 
        /* Use constrained/fixed interfering neighbors to influence the color badness */