[PATCH]: Fix thinko in tree-ssa-structalias.c

[Daniel Berlin]

Due to a thinko, we recreated the nonlocal variable every time PTA was
run, causing a lot more vops than we should have had.

Bootstrapped and regtested on i686-darwin, commited to mainline and 4.2 branch.

2006-10-25  Daniel Berlin  <dberlin@dberlin.org>

        * tree-ssa-structalias.c (intra_create_variable_infos):
          Don't recreate nonlocal_all if it already exists.
-------------- next part --------------
Index: tree-ssa-structalias.c
===================================================================
--- tree-ssa-structalias.c	(revision 118028)
+++ tree-ssa-structalias.c	(working copy)
@@ -4308,7 +4308,8 @@ intra_create_variable_infos (void)
 	    make_constraint_from_escaped (p);
 	}
     }
-  nonlocal_all = create_nonlocal_var (void_type_node);
+  if (!nonlocal_all)
+    nonlocal_all = create_nonlocal_var (void_type_node);
 
   /* Create variable info for the nonlocal var if it does not
      exist.  */