report nextuse place in beuses, add a function which reports normal reload costs...

[libfirm] / ir / be / belower.c

diff --git a/ir/be/belower.c b/ir/be/belower.c
index 2a9ade8..2ca04d5 100644 (file)
--- a/ir/be/belower.c
+++ b/ir/be/belower.c
@@ -631,12 +631,14 @@ static void assure_different_constraints(ir_node *irn, constraint_env_t *env) {
        req = arch_get_register_req(arch_env, irn, -1);
 
        if (arch_register_req_is(req, should_be_different)) {
-               ir_node *different_from = get_irn_n(belower_skip_proj(irn), req->other_different);
-               gen_assure_different_pattern(irn, different_from, env);
-       } else if (arch_register_req_is(req, should_be_different_from_all)) {
-               int i, n = get_irn_arity(belower_skip_proj(irn));
-               for (i = 0; i < n; i++) {
-                       gen_assure_different_pattern(irn, get_irn_n(belower_skip_proj(irn), i), env);
+               const unsigned other = req->other_different;
+               int i;
+
+               for (i = 0; 1U << i <= other; ++i) {
+                       if (other & (1U << i)) {
+                               ir_node *different_from = get_irn_n(belower_skip_proj(irn), i);
+                               gen_assure_different_pattern(irn, different_from, env);
+                       }
                }
        }
 }