svn commit: r336917 - head/sys/amd64/amd64

[Konstantin Belousov]

Author: kib
Date: Mon Jul 30 16:54:51 2018
New Revision: 336917
URL: https://svnweb.freebsd.org/changeset/base/336917

Log:
  Remove unneeded CLDs instructions in the SMAP-ed version of several
  functions from support.S.
  
  I believe they re-appeared due to me mis-merging my r327820 into the
  topic branch.
  
  Sponsored by:	The FreeBSD Foundation

Modified:
  head/sys/amd64/amd64/support.S

Modified: head/sys/amd64/amd64/support.S
==============================================================================
--- head/sys/amd64/amd64/support.S	Mon Jul 30 16:33:32 2018	(r336916)
+++ head/sys/amd64/amd64/support.S	Mon Jul 30 16:54:51 2018	(r336917)
@@ -307,7 +307,6 @@ ENTRY(copyout_smap)
 	movq	%rdx,%rcx
 
 	shrq	$3,%rcx
-	cld
 	stac
 	rep
 	movsq
@@ -358,7 +357,6 @@ ENTRY(copyin_nosmap)
 	movq	%rdx,%rcx
 	movb	%cl,%al
 	shrq	$3,%rcx				/* copy longword-wise */
-	cld
 	rep
 	movsq
 	movb	%al,%cl
@@ -887,7 +885,6 @@ ENTRY(copyinstr_nosmap)
 	movq	%rax,%r8
 1:
 	incq	%rdx
-	cld
 
 2:
 	decq	%rdx