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Modulo-schedule loops in sparcv9a-mont.pl. Overall improvement factor

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over 0.9.8 is up to 3x on USI&II cores and up to 80% - on USIII&IV.
This commit is contained in:
Andy Polyakov 2006-11-28 07:24:26 +00:00
parent 1c3d2b94be
commit 2e21922eb6
1 changed files with 196 additions and 196 deletions
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322
crypto/bn/asm/sparcv9a-mont.pl
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@ -2,8 +2,9 @@
# ====================================================================
# Written by Andy Polyakov <appro@fy.chalmers.se> for the OpenSSL
# project. Rights for redistribution and usage in source and binary
# forms are granted according to the OpenSSL license.
# project. The module is, however, dual licensed under OpenSSL and
# CRYPTOGAMS licenses depending on where you obtain it. For further
# details see http://www.openssl.org/~appro/cryptogams/.
# ====================================================================
# October 2005
@ -47,6 +48,15 @@
# noticeable(!) improvement);
# - dedicated squaring procedure[?];
######################################################################
# November 2006
#
# Modulo-scheduled inner loops allow to interleave floating point and
# integer instructions and minimize Read-After-Write penalties. This
# results in *further* 20-50% perfromance improvement [depending on
# key length, more for longer keys] on USI&II cores and 30-80% - on
# USIII&IV.
$fname="bn_mul_mont_fpu";
$bits=32;
for (@ARGV) { $bits=64 if (/\-m64/ || /\-xarch\=v9/); }
@ -261,34 +271,13 @@ $fname:
fdtox $nlod,$nlod
std $nloa,[%sp+$bias+$frame+0]
std $nlob,[%sp+$bias+$frame+8]
std $nloc,[%sp+$bias+$frame+16]
std $nlod,[%sp+$bias+$frame+24]
ldx [%sp+$bias+$frame+0],%o0
ldx [%sp+$bias+$frame+8],%o1
ldx [%sp+$bias+$frame+16],%o2
ldx [%sp+$bias+$frame+24],%o3
srlx %o0,16,%o7
add %o7,%o1,%o1
srlx %o1,16,%o7
add %o7,%o2,%o2
srlx %o2,16,%o7
add %o7,%o3,%o3 ! %o3.%o2[0..15].%o1[0..15].%o0[0..15]
!and %o0,$mask,%o0
!and %o1,$mask,%o1
!and %o2,$mask,%o2
!sllx %o1,16,%o1
!sllx %o2,32,%o2
!sllx %o3,48,%o7
!or %o1,%o0,%o0
!or %o2,%o0,%o0
!or %o7,%o0,%o0 ! 64-bit result
srlx %o3,16,%g1 ! 34-bit carry
add $j,8,$j
std $nlob,[%sp+$bias+$frame+8]
add $ap,$j,%o4
std $nloc,[%sp+$bias+$frame+16]
add $np,$j,%o5
std $nlod,[%sp+$bias+$frame+24]
ld [%o4+0],$alo_ ! load a[j] as pair of 32-bit words
fzeros $alo
ld [%o4+4],$ahi_
@ -303,24 +292,46 @@ $fname:
fxtod $nlo,$nlo
fxtod $nhi,$nhi
std $alo,[$ap_l+$j] ! save smashed ap[j] in double format
ldx [%sp+$bias+$frame+0],%o0
fmuld $alo,$ba,$aloa
std $ahi,[$ap_h+$j]
ldx [%sp+$bias+$frame+8],%o1
fmuld $nlo,$na,$nloa
std $nlo,[$np_l+$j] ! save smashed np[j] in double format
ldx [%sp+$bias+$frame+16],%o2
fmuld $alo,$bb,$alob
std $nhi,[$np_h+$j]
ldx [%sp+$bias+$frame+24],%o3
fmuld $nlo,$nb,$nlob
srlx %o0,16,%o7
std $alo,[$ap_l+$j] ! save smashed ap[j] in double format
fmuld $alo,$bc,$aloc
add %o7,%o1,%o1
std $ahi,[$ap_h+$j]
faddd $aloa,$nloa,$nloa
fmuld $nlo,$nc,$nloc
srlx %o1,16,%o7
std $nlo,[$np_l+$j] ! save smashed np[j] in double format
fmuld $alo,$bd,$alod
add %o7,%o2,%o2
std $nhi,[$np_h+$j]
faddd $alob,$nlob,$nlob
fmuld $nlo,$nd,$nlod
srlx %o2,16,%o7
fmuld $ahi,$ba,$ahia
add %o7,%o3,%o3 ! %o3.%o2[0..15].%o1[0..15].%o0[0..15]
faddd $aloc,$nloc,$nloc
fmuld $nhi,$na,$nhia
!and %o0,$mask,%o0
!and %o1,$mask,%o1
!and %o2,$mask,%o2
!sllx %o1,16,%o1
!sllx %o2,32,%o2
!sllx %o3,48,%o7
!or %o1,%o0,%o0
!or %o2,%o0,%o0
!or %o7,%o0,%o0 ! 64-bit result
srlx %o3,16,%g1 ! 34-bit carry
fmuld $ahi,$bb,$ahib
faddd $alod,$nlod,$nlod
fmuld $nhi,$nb,$nhib
fmuld $ahi,$bc,$ahic
@ -345,41 +356,13 @@ $fname:
std $nloa,[%sp+$bias+$frame+0]
std $nlob,[%sp+$bias+$frame+8]
addcc $j,8,$j
std $nloc,[%sp+$bias+$frame+16]
bz,pn %icc,.L1stskip
std $nlod,[%sp+$bias+$frame+24]
addcc $j,8,$j
bz,pn %icc,.L1stskip
.align 32,0x1000000
.L1st:
ldx [%sp+$bias+$frame+0],%o0
ldx [%sp+$bias+$frame+8],%o1
ldx [%sp+$bias+$frame+16],%o2
ldx [%sp+$bias+$frame+24],%o3
srlx %o0,16,%o7
add %o7,%o1,%o1
srlx %o1,16,%o7
add %o7,%o2,%o2
srlx %o2,16,%o7
add %o7,%o3,%o3 ! %o3.%o2[0..15].%o1[0..15].%o0[0..15]
and %o0,$mask,%o0
and %o1,$mask,%o1
and %o2,$mask,%o2
sllx %o1,16,%o1
sllx %o2,32,%o2
sllx %o3,48,%o7
or %o1,%o0,%o0
or %o2,%o0,%o0
or %o7,%o0,%o0 ! 64-bit result
addcc %g1,%o0,%o0
srlx %o3,16,%g1 ! 34-bit carry
bcs,a %xcc,.+8
add %g1,1,%g1
stx %o0,[$tp] ! tp[j-1]=
add $ap,$j,%o4
add $np,$j,%o5
ld [%o4+0],$alo_ ! load a[j] as pair of 32-bit words
@ -396,35 +379,61 @@ $fname:
fxtod $nlo,$nlo
fxtod $nhi,$nhi
std $alo,[$ap_l+$j] ! save smashed ap[j] in double format
ldx [%sp+$bias+$frame+0],%o0
fmuld $alo,$ba,$aloa
std $ahi,[$ap_h+$j]
ldx [%sp+$bias+$frame+8],%o1
fmuld $nlo,$na,$nloa
std $nlo,[$np_l+$j] ! save smashed np[j] in double format
ldx [%sp+$bias+$frame+16],%o2
fmuld $alo,$bb,$alob
std $nhi,[$np_h+$j]
ldx [%sp+$bias+$frame+24],%o3
fmuld $nlo,$nb,$nlob
srlx %o0,16,%o7
std $alo,[$ap_l+$j] ! save smashed ap[j] in double format
fmuld $alo,$bc,$aloc
add %o7,%o1,%o1
std $ahi,[$ap_h+$j]
faddd $aloa,$nloa,$nloa
fmuld $nlo,$nc,$nloc
srlx %o1,16,%o7
std $nlo,[$np_l+$j] ! save smashed np[j] in double format
fmuld $alo,$bd,$alod
add %o7,%o2,%o2
std $nhi,[$np_h+$j]
faddd $alob,$nlob,$nlob
fmuld $nlo,$nd,$nlod
srlx %o2,16,%o7
fmuld $ahi,$ba,$ahia
add %o7,%o3,%o3 ! %o3.%o2[0..15].%o1[0..15].%o0[0..15]
and %o0,$mask,%o0
faddd $aloc,$nloc,$nloc
fmuld $nhi,$na,$nhia
and %o1,$mask,%o1
and %o2,$mask,%o2
fmuld $ahi,$bb,$ahib
sllx %o1,16,%o1
faddd $alod,$nlod,$nlod
fmuld $nhi,$nb,$nhib
sllx %o2,32,%o2
fmuld $ahi,$bc,$ahic
sllx %o3,48,%o7
or %o1,%o0,%o0
faddd $ahia,$nhia,$nhia
fmuld $nhi,$nc,$nhic
or %o2,%o0,%o0
fmuld $ahi,$bd,$ahid
or %o7,%o0,%o0 ! 64-bit result
faddd $ahib,$nhib,$nhib
fmuld $nhi,$nd,$nhid
addcc %g1,%o0,%o0
faddd $dota,$nloa,$nloa
srlx %o3,16,%g1 ! 34-bit carry
faddd $dotb,$nlob,$nlob
bcs,a %xcc,.+8
add %g1,1,%g1
stx %o0,[$tp] ! tp[j-1]=
faddd $ahic,$nhic,$dota ! $nhic
faddd $ahid,$nhid,$dotb ! $nhid
@ -579,36 +588,9 @@ $fname:
std $nloa,[%sp+$bias+$frame+0]
std $nlob,[%sp+$bias+$frame+8]
std $nloc,[%sp+$bias+$frame+16]
std $nlod,[%sp+$bias+$frame+24]
ldx [%sp+$bias+$frame+0],%o0
ldx [%sp+$bias+$frame+8],%o1
ldx [%sp+$bias+$frame+16],%o2
ldx [%sp+$bias+$frame+24],%o3
srlx %o0,16,%o7
add %o7,%o1,%o1
srlx %o1,16,%o7
add %o7,%o2,%o2
srlx %o2,16,%o7
add %o7,%o3,%o3 ! %o3.%o2[0..15].%o1[0..15].%o0[0..15]
! why?
and %o0,$mask,%o0
and %o1,$mask,%o1
and %o2,$mask,%o2
sllx %o1,16,%o1
sllx %o2,32,%o2
sllx %o3,48,%o7
or %o1,%o0,%o0
or %o2,%o0,%o0
or %o7,%o0,%o0 ! 64-bit result
ldx [$tp],%o7
addcc %o7,%o0,%o0
! end-of-why?
srlx %o3,16,%g1 ! 34-bit carry
bcs,a %xcc,.+8
add %g1,1,%g1
add $j,8,$j
std $nlod,[%sp+$bias+$frame+24]
ldd [$ap_l+$j],$alo ! load a[j] in double format
ldd [$ap_h+$j],$ahi
ldd [$np_l+$j],$nlo ! load n[j] in double format
@ -619,137 +601,160 @@ $fname:
fmuld $alo,$bb,$alob
fmuld $nlo,$nb,$nlob
fmuld $alo,$bc,$aloc
ldx [%sp+$bias+$frame+0],%o0
faddd $aloa,$nloa,$nloa
fmuld $nlo,$nc,$nloc
ldx [%sp+$bias+$frame+8],%o1
fmuld $alo,$bd,$alod
ldx [%sp+$bias+$frame+16],%o2
faddd $alob,$nlob,$nlob
fmuld $nlo,$nd,$nlod
ldx [%sp+$bias+$frame+24],%o3
fmuld $ahi,$ba,$ahia
srlx %o0,16,%o7
faddd $aloc,$nloc,$nloc
fmuld $nhi,$na,$nhia
add %o7,%o1,%o1
fmuld $ahi,$bb,$ahib
srlx %o1,16,%o7
faddd $alod,$nlod,$nlod
fmuld $nhi,$nb,$nhib
add %o7,%o2,%o2
fmuld $ahi,$bc,$ahic
srlx %o2,16,%o7
faddd $ahia,$nhia,$nhia
fmuld $nhi,$nc,$nhic
add %o7,%o3,%o3 ! %o3.%o2[0..15].%o1[0..15].%o0[0..15]
! why?
and %o0,$mask,%o0
fmuld $ahi,$bd,$ahid
and %o1,$mask,%o1
and %o2,$mask,%o2
faddd $ahib,$nhib,$nhib
fmuld $nhi,$nd,$nhid
sllx %o1,16,%o1
faddd $dota,$nloa,$nloa
sllx %o2,32,%o2
faddd $dotb,$nlob,$nlob
sllx %o3,48,%o7
or %o1,%o0,%o0
faddd $ahic,$nhic,$dota ! $nhic
or %o2,%o0,%o0
faddd $ahid,$nhid,$dotb ! $nhid
or %o7,%o0,%o0 ! 64-bit result
ldx [$tp],%o7
faddd $nloc,$nhia,$nloc
addcc %o7,%o0,%o0
! end-of-why?
faddd $nlod,$nhib,$nlod
srlx %o3,16,%g1 ! 34-bit carry
fdtox $nloa,$nloa
bcs,a %xcc,.+8
add %g1,1,%g1
fdtox $nlob,$nlob
fdtox $nloc,$nloc
fdtox $nlod,$nlod
std $nloa,[%sp+$bias+$frame+0]
std $nlob,[%sp+$bias+$frame+8]
addcc $j,8,$j
std $nloc,[%sp+$bias+$frame+16]
bz,pn %icc,.Linnerskip
std $nlod,[%sp+$bias+$frame+24]
addcc $j,8,$j
bz,pn %icc,.Linnerskip
.align 32,0x1000000
.Linner:
ldd [$ap_l+$j],$alo ! load a[j] in double format
ldd [$ap_h+$j],$ahi
ldd [$np_l+$j],$nlo ! load n[j] in double format
ldd [$np_h+$j],$nhi
fmuld $alo,$ba,$aloa
fmuld $nlo,$na,$nloa
fmuld $alo,$bb,$alob
fmuld $nlo,$nb,$nlob
fmuld $alo,$bc,$aloc
ldx [%sp+$bias+$frame+0],%o0
faddd $aloa,$nloa,$nloa
fmuld $nlo,$nc,$nloc
ldx [%sp+$bias+$frame+8],%o1
fmuld $alo,$bd,$alod
ldx [%sp+$bias+$frame+16],%o2
faddd $alob,$nlob,$nlob
fmuld $nlo,$nd,$nlod
ldx [%sp+$bias+$frame+24],%o3
fmuld $ahi,$ba,$ahia
srlx %o0,16,%o7
faddd $aloc,$nloc,$nloc
fmuld $nhi,$na,$nhia
add %o7,%o1,%o1
fmuld $ahi,$bb,$ahib
srlx %o1,16,%o7
faddd $alod,$nlod,$nlod
fmuld $nhi,$nb,$nhib
add %o7,%o2,%o2
fmuld $ahi,$bc,$ahic
srlx %o2,16,%o7
faddd $ahia,$nhia,$nhia
fmuld $nhi,$nc,$nhic
add %o7,%o3,%o3 ! %o3.%o2[0..15].%o1[0..15].%o0[0..15]
and %o0,$mask,%o0
fmuld $ahi,$bd,$ahid
and %o1,$mask,%o1
and %o2,$mask,%o2
faddd $ahib,$nhib,$nhib
fmuld $nhi,$nd,$nhid
sllx %o1,16,%o1
faddd $dota,$nloa,$nloa
sllx %o2,32,%o2
faddd $dotb,$nlob,$nlob
sllx %o3,48,%o7
or %o1,%o0,%o0
faddd $ahic,$nhic,$dota ! $nhic
or %o2,%o0,%o0
faddd $ahid,$nhid,$dotb ! $nhid
or %o7,%o0,%o0 ! 64-bit result
faddd $nloc,$nhia,$nloc
addcc %g1,%o0,%o0
faddd $nlod,$nhib,$nlod
srlx %o3,16,%g1 ! 34-bit carry
fdtox $nloa,$nloa
bcs,a %xcc,.+8
add %g1,1,%g1
ldx [$tp+8],%o7 ! tp[j]
fdtox $nlob,$nlob
addcc %o7,%o0,%o0
fdtox $nloc,$nloc
bcs,a %xcc,.+8
add %g1,1,%g1
stx %o0,[$tp] ! tp[j-1]
ldd [$ap_l+$j],$alo ! load a[j] in double format
ldd [$ap_h+$j],$ahi
ldd [$np_l+$j],$nlo ! load n[j] in double format
ldd [$np_h+$j],$nhi
fmuld $alo,$ba,$aloa
fmuld $nlo,$na,$nloa
fmuld $alo,$bb,$alob
fmuld $nlo,$nb,$nlob
fmuld $alo,$bc,$aloc
faddd $aloa,$nloa,$nloa
fmuld $nlo,$nc,$nloc
fmuld $alo,$bd,$alod
faddd $alob,$nlob,$nlob
fmuld $nlo,$nd,$nlod
fmuld $ahi,$ba,$ahia
faddd $aloc,$nloc,$nloc
fmuld $nhi,$na,$nhia
fmuld $ahi,$bb,$ahib
faddd $alod,$nlod,$nlod
fmuld $nhi,$nb,$nhib
fmuld $ahi,$bc,$ahic
faddd $ahia,$nhia,$nhia
fmuld $nhi,$nc,$nhic
fmuld $ahi,$bd,$ahid
faddd $ahib,$nhib,$nhib
fmuld $nhi,$nd,$nhid
faddd $dota,$nloa,$nloa
faddd $dotb,$nlob,$nlob
faddd $ahic,$nhic,$dota ! $nhic
faddd $ahid,$nhid,$dotb ! $nhid
faddd $nloc,$nhia,$nloc
faddd $nlod,$nhib,$nlod
fdtox $nloa,$nloa
fdtox $nlob,$nlob
fdtox $nloc,$nloc
fdtox $nlod,$nlod
std $nloa,[%sp+$bias+$frame+0]
std $nlob,[%sp+$bias+$frame+8]
std $nloc,[%sp+$bias+$frame+16]
std $nlod,[%sp+$bias+$frame+24]
addcc $j,8,$j
std $nlod,[%sp+$bias+$frame+24]
bnz,pt %icc,.Linner
add $tp,8,$tp
.Linnerskip:
fdtox $dota,$dota
fdtox $dotb,$dotb
ldx [%sp+$bias+$frame+0],%o0
ldx [%sp+$bias+$frame+8],%o1
ldx [%sp+$bias+$frame+16],%o2
ldx [%sp+$bias+$frame+24],%o3
srlx %o0,16,%o7
std $dota,[%sp+$bias+$frame+32]
add %o7,%o1,%o1
std $dotb,[%sp+$bias+$frame+40]
srlx %o1,16,%o7
add %o7,%o2,%o2
srlx %o2,16,%o7
@ -762,39 +767,34 @@ $fname:
sllx %o3,48,%o7
or %o1,%o0,%o0
or %o2,%o0,%o0
ldx [%sp+$bias+$frame+32],%o4
or %o7,%o0,%o0 ! 64-bit result
ldx [%sp+$bias+$frame+40],%o5
addcc %g1,%o0,%o0
ldx [$tp+8],%o7 ! tp[j]
srlx %o3,16,%g1 ! 34-bit carry
bcs,a %xcc,.+8
add %g1,1,%g1
ldx [$tp+8],%o7 ! tp[j]
addcc %o7,%o0,%o0
bcs,a %xcc,.+8
add %g1,1,%g1
stx %o0,[$tp] ! tp[j-1]
add $tp,8,$tp
fdtox $dota,$dota
fdtox $dotb,$dotb
std $dota,[%sp+$bias+$frame+32]
std $dotb,[%sp+$bias+$frame+40]
ldx [%sp+$bias+$frame+32],%o0
ldx [%sp+$bias+$frame+40],%o1
srlx %o0,16,%o7
add %o7,%o1,%o1
and %o0,$mask,%o0
sllx %o1,16,%o7
or %o7,%o0,%o0
addcc %g1,%o0,%o0
srlx %o1,48,%g1
srlx %o4,16,%o7
add %o7,%o5,%o5
and %o4,$mask,%o4
sllx %o5,16,%o7
or %o7,%o4,%o4
addcc %g1,%o4,%o4
srlx %o5,48,%g1
bcs,a %xcc,.+8
add %g1,1,%g1
addcc $carry,%o0,%o0
stx %o0,[$tp] ! tp[num-1]
addcc $carry,%o4,%o4
stx %o4,[$tp] ! tp[num-1]
mov %g1,$carry
bcs,a %xcc,.+8
add $carry,1,$carry