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ppccpuid.pl: branch hints in OPENSSL_cleanse impact small block performance

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of digest algorithms, mosty SHA, on Power7. Mystery of century, why SHA,
why slower algorithm are affected more...
PR: 2794
Submitted by: Ashley Lai
This commit is contained in:
Andy Polyakov 2012-04-27 20:17:45 +00:00
parent a708609945
commit 9474483ab7
1 changed files with 2 additions and 2 deletions
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4
crypto/ppccpuid.pl
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@ -105,7 +105,7 @@ Ladd: lwarx r5,0,r3
Little: mtctr r4
stb r0,0(r3)
addi r3,r3,1
bdnz- \$-8
bdnz \$-8
blr
Lot: andi. r5,r3,3
beq Laligned
@ -118,7 +118,7 @@ Laligned:
mtctr r5
stw r0,0(r3)
addi r3,r3,4
bdnz- \$-8
bdnz \$-8
andi. r4,r4,3
bne Little
blr