expr.c (expand_assignment): Do not try to optimize a aggregate address which has VOIDmode.

        * expr.c (expand_assignment): Do not try to optimize a aggregate
        address which has VOIDmode.

From-SVN: r25934

gcc/ChangeLog

+Tue Mar 23 23:32:14 1999  Jeffrey A Law  (law@cygnus.com)
+
+	* expr.c (expand_assignment): Do not try to optimize a aggregate
+	address which has VOIDmode.
+
 Tue Mar 23 22:51:48 1999  Mumit Khan  <khan@xraylith.wisc.edu>
 			  Donn Terry  <donn@interix.com>
 

gcc/expr.c

@@ -3276,8 +3276,11 @@ expand_assignment (to, from, want_value, suggest_reg)
 #endif
 	    }
 
+	  /* A constant address in TO_RTX can have VOIDmode, we must not try
+	     to call force_reg for that case.  Avoid that case.  */
 	  if (GET_CODE (to_rtx) == MEM
 	      && GET_MODE (to_rtx) == BLKmode
+	      && GET_MODE (XEXP (to_rtx, 0)) != VOIDmode
 	      && bitsize
 	      && (bitpos % bitsize) == 0 
 	      && (bitsize % GET_MODE_ALIGNMENT (mode1)) == 0