bestack: remove unnecessary keep edges from IncSP nodes

[libfirm] / ir / be / becopyopt.c

diff --git a/ir/be/becopyopt.c b/ir/be/becopyopt.c
index 081c499..e9e0e9c 100644 (file)
--- a/ir/be/becopyopt.c
+++ b/ir/be/becopyopt.c
@@ -194,7 +194,7 @@ DEBUG_ONLY(static firm_dbg_module_t *dbg = NULL;)
 copy_opt_t *new_copy_opt(be_chordal_env_t *chordal_env, cost_fct_t get_costs)
 {
        const char *s1, *s2, *s3;
-       int len;
+       size_t len;
        copy_opt_t *co;
 
        FIRM_DBG_REGISTER(dbg, "ir.be.copyopt");
@@ -308,7 +308,7 @@ static int ou_max_ind_set_costs(unit_t *ou)
        ir_node **safe, **unsafe;
        int i, o, safe_count, safe_costs, unsafe_count, *unsafe_costs;
        bitset_t *curr;
-       unsigned  pos;
+       size_t  pos;
        int curr_weight, best_weight = 0;
 
        /* assign the nodes into two groups.
@@ -344,7 +344,7 @@ static int ou_max_ind_set_costs(unit_t *ou)
        /* now compute the best set out of the unsafe nodes*/
        if (unsafe_count > MIS_HEUR_TRIGGER) {
                bitset_t *best = bitset_alloca(unsafe_count);
-               /* Heuristik: Greedy trial and error form index 0 to unsafe_count-1 */
+               /* Heuristic: Greedy trial and error form index 0 to unsafe_count-1 */
                for (i=0; i<unsafe_count; ++i) {
                        bitset_set(best, i);
                        /* check if it is a stable set */
@@ -369,7 +369,7 @@ static int ou_max_ind_set_costs(unit_t *ou)
                                                        goto no_stable_set;
 
                        /* if we arrive here, we have a stable set */
-                       /* compute the weigth of the stable set*/
+                       /* compute the weight of the stable set*/
                        curr_weight = 0;
                        bitset_foreach(curr, pos)
                                curr_weight += unsafe_costs[pos];