Discard "nomerge" nodes to speed up depgraph.altlist() since those nodes aren't used...

svn path=/main/trunk/; revision=7067

diff --git a/pym/emerge/__init__.py b/pym/emerge/__init__.py
index fd6643deac80edc294354074d55632e5464f9c35..838d1fbb6b986fe1b05afb26fa21c980db4a2f96 100644 (file)
--- a/pym/emerge/__init__.py
+++ b/pym/emerge/__init__.py
@@ -2054,6 +2054,9 @@ class depgraph(object):
                        self._altlist_cache[reversed] = retlist[:]
                        return retlist
                mygraph=self.digraph.copy()
+               for node in mygraph.order[:]:
+                       if node[-1] == "nomerge":
+                               mygraph.remove(node)
                self._merge_order_bias(mygraph)
                myblockers = self.blocker_digraph.copy()
                retlist=[]