more warning fixes

[libfirm] / ir / be / belower.c

diff --git a/ir/be/belower.c b/ir/be/belower.c
index aafa6a3..5b354cf 100644 (file)
--- a/ir/be/belower.c
+++ b/ir/be/belower.c
@@ -797,10 +797,11 @@ static void melt_copykeeps(constraint_env_t *cenv) {
 void assure_constraints(be_irg_t *birg) {
        constraint_env_t cenv;
        op_copy_assoc_t  *entry;
-       dom_front_info_t *dom;
        ir_node          **nodes;
        FIRM_DBG_REGISTER(firm_dbg_module_t *mod, "firm.be.lower.constr");
 
+       be_assure_dom_front(birg);
+
        DEBUG_ONLY(cenv.dbg = mod;)
        cenv.birg   = birg;
        cenv.op_set = new_pset(cmp_op_copy_assoc, 16);
@@ -813,9 +814,6 @@ void assure_constraints(be_irg_t *birg) {
        /* same operand                         */
        melt_copykeeps(&cenv);
 
-       /* introduce copies needs dominance information */
-       dom = be_compute_dominance_frontiers(birg->irg);
-
        /* for all */
        foreach_pset(cenv.op_set, entry) {
                int     n;
@@ -838,7 +836,7 @@ void assure_constraints(be_irg_t *birg) {
                DB((mod, LEVEL_1, "\n"));
 
                /* introduce the copies for the operand and it's copies */
-               be_ssa_constr(dom, NULL, n, nodes);
+               be_ssa_constr(birg->dom_front, NULL, n, nodes);
 
 
                /* Could be that not all CopyKeeps are really needed, */
@@ -861,8 +859,6 @@ void assure_constraints(be_irg_t *birg) {
                del_pset(entry->copies);
        }
 
-       be_free_dominance_frontiers(dom);
-
        del_pset(cenv.op_set);
        obstack_free(&cenv.obst, NULL);
 }