re PR rtl-optimization/78120 (If conversion no longer performed)

	PR rtl-optimization/78120
	* rtlanal.c (insn_rtx_cost): Use set_rtx_cost.

From-SVN: r242833

gcc/ChangeLog

 2016-11-24  Bernd Schmidt  <bschmidt@redhat.com>
 
 	PR rtl-optimization/78120
+	* rtlanal.c (insn_rtx_cost): Use set_rtx_cost.
+
+	PR rtl-optimization/78120
 	* config/i386/i386.c (ix86_rtx_costs): Fully handle SETs.
 
 2016-11-24  Bin Cheng  <bin.cheng@arm.com>

gcc/rtlanal.c

@@ -5237,7 +5237,7 @@ insn_rtx_cost (rtx pat, bool speed)
   else
     return 0;
 
-  cost = set_src_cost (SET_SRC (set), GET_MODE (SET_DEST (set)), speed);
+  cost = set_rtx_cost (set, speed);
   return cost > 0 ? cost : COSTS_N_INSNS (1);
 }