for  gcc/ChangeLog
from  Alexandre Oliva  <aoliva@redhat.com>

	* tree-ssa-pre.c (remove_dead_inserted_code): Don't release_defs
	after remove_phi_node.

Index: gcc/tree-ssa-pre.c
===================================================================
--- gcc/tree-ssa-pre.c.orig	2009-11-19 01:14:18.000000000 -0200
+++ gcc/tree-ssa-pre.c	2009-11-19 01:14:52.000000000 -0200
@@ -4462,8 +4462,10 @@ remove_dead_inserted_code (void)
 	  if (gimple_code (t) == GIMPLE_PHI)
 	    remove_phi_node (&gsi, true);
 	  else
-	    gsi_remove (&gsi, true);
-	  release_defs (t);
+	    {
+	      gsi_remove (&gsi, true);
+	      release_defs (t);
+	    }
 	}
     }
   VEC_free (gimple, heap, worklist);