belive: Remove unused functions and macros.

[libfirm] / ir / be / belower.c

diff --git a/ir/be/belower.c b/ir/be/belower.c
index 9187851..29ee427 100644 (file)
--- a/ir/be/belower.c
+++ b/ir/be/belower.c
@@ -843,7 +843,6 @@ static int push_through_perm(ir_node *perm)
 {
        ir_graph *irg     = get_irn_irg(perm);
        ir_node *bl       = get_nodes_block(perm);
-       ir_node *node;
        int  arity        = get_irn_arity(perm);
        int *map;
        int *proj_map;
@@ -883,9 +882,12 @@ found_front:
 
        DB((dbg_permmove, LEVEL_2, "\tfrontier: %+F\n", frontier));
 
-       node = sched_prev(perm);
        n_moved = 0;
-       while (!sched_is_begin(node)) {
+       for (;;) {
+               ir_node *const node = sched_prev(perm);
+               if (node == frontier)
+                       break;
+
                const arch_register_req_t *req;
                int                        input = -1;
                ir_node                   *proj  = NULL;
@@ -904,8 +906,6 @@ found_front:
                /* it wasn't an input to the perm, we can't do anything more */
                if (input < 0)
                        break;
-               if (!sched_comes_after(frontier, node))
-                       break;
                if (arch_irn_is(node, modify_flags))
                        break;
                req = arch_get_irn_register_req(node);
@@ -934,8 +934,6 @@ found_front:
 
                bitset_set(moved, input);
                n_moved++;
-
-               node = sched_prev(node);
        }
 
        /* well, we could not push anything through the perm */