Use be_put_ignore_regs() instead of duplicating its logic.

[libfirm] / ir / be / belower.c

diff --git a/ir/be/belower.c b/ir/be/belower.c
index 3b2b47a..4309966 100644 (file)
--- a/ir/be/belower.c
+++ b/ir/be/belower.c
@@ -620,7 +620,8 @@ static void gen_assure_different_pattern(ir_node *irn, ir_node *other_different,
  */
 static void assure_different_constraints(ir_node *irn, constraint_env_t *env) {
        const arch_register_req_t *req;
-       const arch_env_t          *arch_env = be_get_birg_arch_env(env->birg);
+       const arch_env_t          *arch_env    = be_get_birg_arch_env(env->birg);
+       ir_node                   *skipped_irn = belower_skip_proj(irn);
 
        req = arch_get_register_req(arch_env, irn, -1);
 
@@ -639,14 +640,14 @@ static void assure_different_constraints(ir_node *irn, constraint_env_t *env) {
                                 * We can safely ignore a should_be_same x must_be_different y
                                 * IFF both inputs are equal!
                                 */
-                               if (get_irn_n(irn, idx_other) == get_irn_n(irn, idx_same)) {
+                               if (get_irn_n(skipped_irn, idx_other) == get_irn_n(skipped_irn, idx_same)) {
                                        return;
                                }
                        }
                }
                for (i = 0; 1U << i <= other; ++i) {
                        if (other & (1U << i)) {
-                               ir_node *different_from = get_irn_n(belower_skip_proj(irn), i);
+                               ir_node *different_from = get_irn_n(skipped_irn, i);
                                gen_assure_different_pattern(irn, different_from, env);
                        }
                }
@@ -800,8 +801,6 @@ void assure_constraints(be_irg_t *birg) {
        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);