Use prevents_AM() in use_dest_am().

[r22826]

diff --git a/ir/be/ia32/ia32_transform.c b/ir/be/ia32/ia32_transform.c
index 97fc264..b917b99 100644 (file)
--- a/ir/be/ia32/ia32_transform.c
+++ b/ir/be/ia32/ia32_transform.c
@@ -1942,25 +1942,10 @@ static int use_dest_am(ir_node *block, ir_node *node, ir_node *mem,
                return 0;
        }
 
-       if (is_Sync(mem)) {
-               int i;
-
-               for (i = get_Sync_n_preds(mem) - 1; i >= 0; --i) {
-                       ir_node *const pred = get_Sync_pred(mem, i);
-
-                       if (is_Proj(pred) && get_Proj_pred(pred) == load)
-                               continue;
-
-                       if (get_nodes_block(pred) == block &&
-                           heights_reachable_in_block(heights, pred, load)) {
-                               return 0;
-                       }
-               }
-       } else {
-               /* Store should be attached to the load */
-               if (!is_Proj(mem) || get_Proj_pred(mem) != load)
-                       return 0;
-       }
+       if (prevents_AM(block, load, mem))
+               return 0;
+       /* Store should be attached to the load via mem */
+       assert(heights_reachable_in_block(heights, mem, load));
 
        return 1;
 }