Document unused function argument

This patch fixes a small warning about the unused outer_rtx argument in the
msp430 backend.

2022-09-06  Jan-Benedict Glaw  <jbglaw@lug-owl.de>

gcc/ChangeLog:
	* config/msp430/msp430.cc (msp430_single_op_cost): Document unused argument.

diff --git a/gcc/config/msp430/msp430.cc b/gcc/config/msp430/msp430.cc
index 7a378ce..6c15780 100644 (file)
--- a/gcc/config/msp430/msp430.cc
+++ b/gcc/config/msp430/msp430.cc
@@ -1460,7 +1460,7 @@ msp430_get_inner_dest_code (rtx x)
 /* Calculate the cost of an MSP430 single-operand instruction, for operand DST
    within the RTX OUTER_RTX, optimizing for speed if SPEED is true.  */
 static int
-msp430_single_op_cost (rtx dst, bool speed, rtx outer_rtx)
+msp430_single_op_cost (rtx dst, bool speed, rtx /* outer_rtx */)
 {
   enum rtx_code dst_code = GET_CODE (dst);
   const struct single_op_cost *cost_p;