Slightly reduce code duplication.

[libfirm] / ir / opt / cfopt.c

diff --git a/ir/opt/cfopt.c b/ir/opt/cfopt.c
index d289c99..a712040 100644 (file)
--- a/ir/opt/cfopt.c
+++ b/ir/opt/cfopt.c
@@ -712,7 +712,7 @@ void optimize_cf(ir_graph *irg) {
        edges_deactivate(irg);
 
        /* we use the mark flag to mark removable blocks */
-       set_using_block_mark(irg);
+       ir_reserve_resources(irg, IR_RESOURCE_BLOCK_MARK);
 restart:
        env.changed    = 0;
        env.phis_moved = 0;
@@ -740,12 +740,12 @@ restart:
                }
        }
 
-       set_using_irn_link(irg);
+       ir_reserve_resources(irg, IR_RESOURCE_IRN_LINK);
 
        env.list = plist_new();
        irg_walk(end, merge_blocks, collect_nodes, &env);
 
-       clear_using_irn_link(irg);
+       ir_free_resources(irg, IR_RESOURCE_IRN_LINK);
 
        if (env.changed) {
                /* Handle graph state if was changed. */
@@ -782,7 +782,7 @@ restart:
 
        /* in rare cases a node may be kept alive more than once, use the visited flag to detect this */
        inc_irg_visited(irg);
-       set_using_irn_visited(irg);
+       ir_reserve_resources(irg, IR_RESOURCE_IRN_VISITED);
 
        /* fix the keep alive */
        for (i = j = 0; i < n; i++) {
@@ -815,8 +815,7 @@ restart:
                env.changed = 1;
        }
 
-       clear_using_block_mark(irg);
-       clear_using_irn_visited(irg);
+       ir_free_resources(irg, IR_RESOURCE_BLOCK_MARK | IR_RESOURCE_IRN_VISITED);
 
        if (env.phis_moved) {
                /* Bad: when we moved Phi's, we might produce dead Phi nodes