re PR rtl-optimization/70703 (Regression in register usage on x86)

2017-04-05  Vladimir Makarov  <vmakarov@redhat.com>

	PR rtl-optimization/70703
	* ira-color.c (update_conflict_hard_regno_costs): Use
	HOST_WIDE_INT instead of long.

From-SVN: r246711

gcc/ChangeLog

+2017-04-05  Vladimir Makarov  <vmakarov@redhat.com>
+
+	PR rtl-optimization/70703
+	* ira-color.c (update_conflict_hard_regno_costs): Use
+	HOST_WIDE_INT instead of long.
+
 2017-04-05  Uros Bizjak  <ubizjak@gmail.com>
 
 	PR target/80298

gcc/ira-color.c

@@ -1522,7 +1522,7 @@ update_conflict_hard_regno_costs (int *costs, enum reg_class aclass,
 		index = ira_class_hard_reg_index[aclass][hard_regno];
 		if (index < 0)
 		  continue;
-		cost = (int) (((long) conflict_costs [i] * mult) / div);
+		cost = (int) (((HOST_WIDE_INT) conflict_costs [i] * mult) / div);
 		if (cost == 0)
 		  continue;
 		cont_p = true;