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Remove unneeded CLDs instructions in the SMAP-ed version of several

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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
This commit is contained in:
Konstantin Belousov 2018-07-30 16:54:51 +00:00
parent 9fc89b6017
commit 8e36389535
1 changed files with 0 additions and 3 deletions
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3
sys/amd64/amd64/support.S
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@ -307,7 +307,6 @@ ENTRY(copyout_smap)
movq %rdx,%rcx movq %rdx,%rcx
shrq $3,%rcx shrq $3,%rcx
cld
stac stac
rep rep
movsq movsq
@ -358,7 +357,6 @@ ENTRY(copyin_nosmap)
movq %rdx,%rcx movq %rdx,%rcx
movb %cl,%al movb %cl,%al
shrq $3,%rcx /* copy longword-wise */ shrq $3,%rcx /* copy longword-wise */
cld
rep rep
movsq movsq
movb %al,%cl movb %al,%cl
@ -887,7 +885,6 @@ ENTRY(copyinstr_nosmap)
movq %rax,%r8 movq %rax,%r8
1: 1:
incq %rdx incq %rdx
cld
2: 2:
decq %rdx decq %rdx