Use a real Dummy node instead of misusing an Unknown node and shortly deactivating...

[libfirm] / ir / opt / ldstopt.c

diff --git a/ir/opt/ldstopt.c b/ir/opt/ldstopt.c
index 3cf50ab..dd0231e 100644 (file)
--- a/ir/opt/ldstopt.c
+++ b/ir/opt/ldstopt.c
@@ -113,8 +113,7 @@ static ldst_info_t *get_ldst_info(ir_node *node, struct obstack *obst) {
        ldst_info_t *info = get_irn_link(node);
 
        if (! info) {
-               info = obstack_alloc(obst, sizeof(*info));
-               memset(info, 0, sizeof(*info));
+               info = OALLOCZ(obst, ldst_info_t);
                set_irn_link(node, info);
        }
        return info;
@@ -127,8 +126,7 @@ static block_info_t *get_block_info(ir_node *node, struct obstack *obst) {
        block_info_t *info = get_irn_link(node);
 
        if (! info) {
-               info = obstack_alloc(obst, sizeof(*info));
-               memset(info, 0, sizeof(*info));
+               info = OALLOCZ(obst, block_info_t);
                set_irn_link(node, info);
        }
        return info;