local_optimize() now kills unrteachable code if dominance info is available.

[libfirm] / ir / ir / irgmod.c

diff --git a/ir/ir/irgmod.c b/ir/ir/irgmod.c
index a71746b..9c92242 100644 (file)
--- a/ir/ir/irgmod.c
+++ b/ir/ir/irgmod.c
@@ -52,41 +52,41 @@ turn_into_tuple (ir_node *node, int arity)
 void
 exchange (ir_node *old, ir_node *nw)
 {
-       /*
-        * If new outs are on, we can skip the id node creation and reroute
-        * the edges from the old node to the new directly.
-        */
-       if (edges_activated(current_ir_graph)) {
-               edges_reroute(old, nw, current_ir_graph);
-       }
+  /*
+   * If new outs are on, we can skip the id node creation and reroute
+   * the edges from the old node to the new directly.
+   */
+  if (edges_activated(current_ir_graph)) {
+    edges_reroute(old, nw, current_ir_graph);
+  }
   else {
     /* Else, do it the old-fashioned way. */
 
-               ir_graph *irg = get_irn_irg (old);
-               ir_node *block;
+    ir_graph *irg = get_irn_irg (old);
+    ir_node *block;
 
-               assert(old != nw);
-               assert (irg);
-               assert(get_irn_op(old)->opar != oparity_dynamic);
+    assert(old != nw);
+    assert (irg);
+    assert(get_irn_op(old)->opar != oparity_dynamic);
 
-               hook_turn_into_id(old);
+    hook_turn_into_id(old);
 
-               block = old->in[0];
-               if (!block) {
-                       block = is_Block(nw) ? nw : get_nodes_block(nw);
+    block = old->in[0];
+    if (!block) {
+      block = is_Block(nw) ? nw : get_nodes_block(nw);
 
-                       if (!block) {
-                               DDMN(old);
-                               DDMN(nw);
-                               assert(0 && "cannot find legal block for id");
-                       }
-               }
+      if (!block) {
+       DDMN(old);
+       DDMN(nw);
+       assert(0 && "cannot find legal block for id");
+      }
+    }
 
-               old->op = op_Id;
-               old->in = NEW_ARR_D (ir_node *, irg->obst, 2);
-               old->in[0] = block;
-               old->in[1] = nw;
-       }
+    old->op = op_Id;
+    old->in = NEW_ARR_D (ir_node *, irg->obst, 2);
+    old->in[0] = block;
+    old->in[1] = nw;
+  }
 }
 
 /*--------------------------------------------------------------------*/