Update comment in gimple-ssa-store-merging.c

	* gimple-ssa-store-merging.c (clear_bit_region): Replace reference to
	loop in comment with memset.

From-SVN: r250201

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 0a970d7..a4f5397 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2017-07-14  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
+
+       * gimple-ssa-store-merging.c (clear_bit_region): Replace reference to
+       loop in comment with memset.
+
 2017-07-14  Martin Liska  <mliska@suse.cz>
 
        * cfgexpand.c (expand_gimple_basic_block): Remove dead comment.

diff --git a/gcc/gimple-ssa-store-merging.c b/gcc/gimple-ssa-store-merging.c
index 64b8351..5e92273 100644 (file)
--- a/gcc/gimple-ssa-store-merging.c
+++ b/gcc/gimple-ssa-store-merging.c
@@ -331,8 +331,8 @@ clear_bit_region (unsigned char *ptr, unsigned int start,
   else if (start == 0 && len > BITS_PER_UNIT)
     {
       unsigned int nbytes = len / BITS_PER_UNIT;
-      /* We could recurse on each byte but do the loop here to avoid
-        recursing too deep.  */
+      /* We could recurse on each byte but we clear whole bytes, so a simple
+        memset will do.  */
       memset (ptr, '\0', nbytes);
       /* Clear the remaining sub-byte region if there is one.  */
       if (len % BITS_PER_UNIT != 0)