* config/avr/avr.c (avr_rtx_costs): Set cost of CONST, LABEL_REF to 0.

From-SVN: r176554

gcc/ChangeLog

+2011-07-21  Georg-Johann Lay  <avr@gjlay.de>
+	
+	* config/avr/avr.c (avr_rtx_costs): Set cost of CONST, LABEL_REF to 0.
+
 2011-07-20  H.J. Lu  <hongjiu.lu@intel.com>
 	    Uros Bizjak  <ubizjak@gmail.com>
 	    Richard Henderson  <rth@redhat.com>

gcc/config/avr/avr.c

@@ -5333,13 +5333,13 @@ avr_rtx_costs (rtx x, int codearg, int outer_code ATTRIBUTE_UNUSED, int *total,
     case CONST_INT:
     case CONST_DOUBLE:
     case SYMBOL_REF:
+    case CONST:
+    case LABEL_REF:
       /* Immediate constants are as cheap as registers.  */
       *total = 0;
       return true;
 
     case MEM:
-    case CONST:
-    case LABEL_REF:
       *total = COSTS_N_INSNS (GET_MODE_SIZE (mode));
       return true;