S/390: Fix ira cost multiplier

	* config/s390/s390.h (IRA_HARD_REGNO_ADD_COST_MULTIPLIER):
	Invert the condition.

From-SVN: r222144

gcc/ChangeLog

+2015-04-16  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>
+
+	* config/s390/s390.h (IRA_HARD_REGNO_ADD_COST_MULTIPLIER):
+	Invert the condition.
+
 2015-04-16  Renlin Li  <renlin.li@arm.com>
 
 	* simplify-rtx.c (simplify_unary_operation_1): Fix a typo. Enable two

gcc/config/s390/s390.h

@@ -477,7 +477,7 @@ enum reg_class
    reload can decide not to use the hard register because some
    constant was forced to be in memory.  */
 #define IRA_HARD_REGNO_ADD_COST_MULTIPLIER(regno)	\
-  (regno == BASE_REGNUM ? 0.0 : 0.5)
+  (regno != BASE_REGNUM ? 0.0 : 0.5)
 
 /* Register -> class mapping.  */
 extern const enum reg_class regclass_map[FIRST_PSEUDO_REGISTER];