[expmed][trivial] Fix comment about multiplying by T-1 and adding T.

	* expmed.c (synth_mult): Fix comment about multiplying by T-1 and
	adding T or multiplying by T+1 and subracting T.

From-SVN: r221588

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b615c1f520fe18829441c6bd34bc4b2b49bf1c9b..d269b76c464e1b0b862a9859d6c612afb485a23d 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2015-03-23  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
+       * expmed.c (synth_mult): Fix comment about multiplying by T-1 and
+       adding T or multiplying by T+1 and subracting T.
+
 2015-03-22  Jeff Law  <law@redhat.com>
 
        PR rtl-optimization/64317

diff --git a/gcc/expmed.c b/gcc/expmed.c
index 8d4f9640934be3ea492390dfe692356d78d46bbb..e0b2619034d15e5388db47affa07c7ea92380873 100644 (file)
--- a/gcc/expmed.c
+++ b/gcc/expmed.c
@@ -2611,7 +2611,7 @@ synth_mult (struct algorithm *alg_out, unsigned HOST_WIDE_INT t,
                 Thus we prefer addition in that case.  */
              && t != 3))
        {
-         /* T ends with ...111.  Multiply by (T + 1) and subtract 1.  */
+         /* T ends with ...111.  Multiply by (T + 1) and subtract T.  */
 
          op_cost = add_cost (speed, mode);
          new_limit.cost = best_cost.cost - op_cost;
@@ -2630,7 +2630,7 @@ synth_mult (struct algorithm *alg_out, unsigned HOST_WIDE_INT t,
        }
       else
        {
-         /* T ends with ...01 or ...011.  Multiply by (T - 1) and add 1.  */
+         /* T ends with ...01 or ...011.  Multiply by (T - 1) and add T.  */
 
          op_cost = add_cost (speed, mode);
          new_limit.cost = best_cost.cost - op_cost;