re PR bootstrap/33306 (Bootstrap failure on alpha: ICE in convert_move, at expr.c:369)

gcc/
	PR middle-end/33306
	* optabs.c (avoid_expensive_constant): Do nothing if MODE is VOIDmode.

From-SVN: r128179

gcc/ChangeLog

+2007-09-06  Richard Sandiford  <richard@codesourcery.com>
+
+	PR middle-end/33306
+	* optabs.c (avoid_expensive_constant): Do nothing if MODE is VOIDmode.
+
 2007-09-06  Basile Starynkevitch  <basile@starynkevitch.net>
 
 	* cfg.c (dump_bb_info, dump_edge_info): Added cfun test for 

gcc/optabs.c

@@ -1359,7 +1359,8 @@ static rtx
 avoid_expensive_constant (enum machine_mode mode, optab binoptab,
 			  rtx x, bool unsignedp)
 {
-  if (optimize
+  if (mode != VOIDmode
+      && optimize
       && CONSTANT_P (x)
       && rtx_cost (x, binoptab->code) > COSTS_N_INSNS (1))
     {