re PR middle-end/68117 (error: invalid PHI argument <<< Unknown tree: <invalid tree code> >>>)

2015-11-16  Richard Biener  <rguenther@suse.de>

	PR middle-end/68117
	* cfgexpand.c (pass_expand::execute): Destroy the edge
	redirection var map before setting RTL CFG hooks.

From-SVN: r230424

gcc/ChangeLog

+2015-11-16  Richard Biener  <rguenther@suse.de>
+
+	PR middle-end/68117
+	* cfgexpand.c (pass_expand::execute): Destroy the edge
+	redirection var map before setting RTL CFG hooks.
+
 2015-11-16  Alan Lawrence  <alan.lawrence@arm.com>
 
 	* config/i386/sse.md (reduc_splus_v8df): Rename to...

gcc/cfgexpand.c

@@ -6275,6 +6275,9 @@ pass_expand::execute (function *fun)
 
   expand_phi_nodes (&SA);
 
+  /* Release any stale SSA redirection data.  */
+  redirect_edge_var_map_destroy ();
+
   /* Register rtl specific functions for cfg.  */
   rtl_register_cfg_hooks ();