Signed-off-by: Shawn Landden <shawn@xxxxxxx>
---
man3/bcmp.3 | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/man3/bcmp.3 b/man3/bcmp.3
index ba9838019..18d238720 100644
--- a/man3/bcmp.3
+++ b/man3/bcmp.3
@@ -70,15 +70,21 @@ T{
.BR bcmp ()
T} Thread safety MT-Safe
.TE
.SH CONFORMING TO
4.3BSD.
-This function is deprecated (marked as LEGACY in POSIX.1-2001): use
-.BR memcmp (3)
-in new programs.
+This function was deprecated (marked as LEGACY) by POSIX.1-2001).
POSIX.1-2008 removes the specification of
.BR bcmp ().
+LLVM 9, released in 2019, revived
+.BR bcmp ()
+and generates calls to it instead of
+.BR memcmp (3)
+as appropiate as an optimization (as
+.BR bcmp ()
+need not traverse memory in-order).
+.\" http://releases.llvm.org/9.0.0/docs/ReleaseNotes.html#noteworthy-optimizations
.SH SEE ALSO
.BR bstring (3),
.BR memcmp (3),
.BR strcasecmp (3),
.BR strcmp (3),
--
2.20.1
