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dnl ARM64 mpn_and_n, mpn_andn_n. mpn_nand_n, etc.
dnl Contributed to the GNU project by Torbjörn Granlund.
dnl Copyright 2013 Free Software Foundation, Inc.
dnl This file is part of the GNU MP Library.
dnl
dnl The GNU MP Library is free software; you can redistribute it and/or modify
dnl it under the terms of either:
dnl
dnl * the GNU Lesser General Public License as published by the Free
dnl Software Foundation; either version 3 of the License, or (at your
dnl option) any later version.
dnl
dnl or
dnl
dnl * the GNU General Public License as published by the Free Software
dnl Foundation; either version 2 of the License, or (at your option) any
dnl later version.
dnl
dnl or both in parallel, as here.
dnl
dnl The GNU MP Library is distributed in the hope that it will be useful, but
dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
dnl for more details.
dnl
dnl You should have received copies of the GNU General Public License and the
dnl GNU Lesser General Public License along with the GNU MP Library. If not,
dnl see https://www.gnu.org/licenses/.
include(`../config.m4')
C cycles/limb cycles/limb
C nand,nior all other
C Cortex-A53 3.25-3.5 2.75-3
C Cortex-A57 2.0 1.5
C X-Gene 2.14 2.0
changecom(blah)
define(`rp', `x0')
define(`up', `x1')
define(`vp', `x2')
define(`n', `x3')
define(`POSTOP', `dnl')
ifdef(`OPERATION_and_n',`
define(`func', `mpn_and_n')
define(`LOGOP', `and $1, $2, $3')')
ifdef(`OPERATION_andn_n',`
define(`func', `mpn_andn_n')
define(`LOGOP', `bic $1, $2, $3')')
ifdef(`OPERATION_nand_n',`
define(`func', `mpn_nand_n')
define(`POSTOP', `mvn $1, $1')
define(`LOGOP', `and $1, $2, $3')')
ifdef(`OPERATION_ior_n',`
define(`func', `mpn_ior_n')
define(`LOGOP', `orr $1, $2, $3')')
ifdef(`OPERATION_iorn_n',`
define(`func', `mpn_iorn_n')
define(`LOGOP', `orn $1, $2, $3')')
ifdef(`OPERATION_nior_n',`
define(`func', `mpn_nior_n')
define(`POSTOP', `mvn $1, $1')
define(`LOGOP', `orr $1, $2, $3')')
ifdef(`OPERATION_xor_n',`
define(`func', `mpn_xor_n')
define(`LOGOP', `eor $1, $2, $3')')
ifdef(`OPERATION_xnor_n',`
define(`func', `mpn_xnor_n')
define(`LOGOP', `eon $1, $2, $3')')
MULFUNC_PROLOGUE(mpn_and_n mpn_andn_n mpn_nand_n mpn_ior_n mpn_iorn_n mpn_nior_n mpn_xor_n mpn_xnor_n)
ASM_START()
PROLOGUE(func)
lsr x17, n, #2
tbz n, #0, L(bx0)
L(bx1): ldr x7, [up]
ldr x11, [vp]
LOGOP( x15, x7, x11)
POSTOP( x15)
str x15, [rp],#8
tbnz n, #1, L(b11)
L(b01): cbz x17, L(ret)
ldp x4, x5, [up,#8]
ldp x8, x9, [vp,#8]
sub up, up, #8
sub vp, vp, #8
b L(mid)
L(b11): ldp x6, x7, [up,#8]
ldp x10, x11, [vp,#8]
add up, up, #8
add vp, vp, #8
cbz x17, L(end)
b L(top)
L(bx0): tbnz n, #1, L(b10)
L(b00): ldp x4, x5, [up],#-16
ldp x8, x9, [vp],#-16
b L(mid)
L(b10): ldp x6, x7, [up]
ldp x10, x11, [vp]
cbz x17, L(end)
ALIGN(16)
L(top): ldp x4, x5, [up,#16]
ldp x8, x9, [vp,#16]
LOGOP( x12, x6, x10)
LOGOP( x13, x7, x11)
POSTOP( x12)
POSTOP( x13)
stp x12, x13, [rp],#16
L(mid): ldp x6, x7, [up,#32]!
ldp x10, x11, [vp,#32]!
LOGOP( x12, x4, x8)
LOGOP( x13, x5, x9)
POSTOP( x12)
POSTOP( x13)
stp x12, x13, [rp],#16
sub x17, x17, #1
cbnz x17, L(top)
L(end): LOGOP( x12, x6, x10)
LOGOP( x13, x7, x11)
POSTOP( x12)
POSTOP( x13)
stp x12, x13, [rp]
L(ret): ret
EPILOGUE()
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