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|
dnl IA-64 mpn_addlshC_n, mpn_sublshC_n, mpn_rsblshC_n.
dnl Contributed to the GNU project by Torbjörn Granlund.
dnl Copyright 2003-2005, 2010, 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/.
C cycles/limb
C Itanium: ?
C Itanium 2: 1.5
C TODO
C * Use shladd in feed-in code (for mpn_addlshC_n).
C * Rewrite loop to schedule loads closer to use, since we do prefetch.
C INPUT PARAMETERS
define(`rp', `r32')
define(`up', `r33')
define(`vp', `r34')
define(`n', `r35')
ifdef(`DO_add', `
define(`ADDSUB', `add $1 = $2, $3')
define(`CMP', `cmp.ltu $1,p0 = $2, $3')
define(`INCR', 1)
define(`LIM', -1)
define(`func', mpn_addlsh`'LSH`'_n)')
ifdef(`DO_sub', `
define(`ADDSUB', `sub $1 = $2, $3')
define(`CMP', `cmp.gtu $1,p0 = $2, $3')
define(`INCR', -1)
define(`LIM', 0)
define(`func', mpn_sublsh`'LSH`'_n)')
ifdef(`DO_rsb', `
define(`ADDSUB', `sub $1 = $3, $2')
define(`CMP', `cmp.gtu $1,p0 = $2, $4')
define(`INCR', -1)
define(`LIM', 0)
define(`func', mpn_rsblsh`'LSH`'_n)')
define(PFDIST, 500)
define(`u0',`r14') define(`u1',`r15') define(`u2',`r16') define(`u3',`r17')
define(`v0',`r18') define(`v1',`r19') define(`v2',`r20') define(`v3',`r21')
define(`w0',`r22') define(`w1',`r23') define(`w2',`r24') define(`w3',`r25')
define(`s0',`r26') define(`s1',`r27') define(`s2',`r28') define(`s3',`r29')
define(`x0',`r30') define(`x1',`r31') define(`x2',`r3') define(`x3',`r9')
C r3 r8 r9 r10 r11
ASM_START()
PROLOGUE(func)
.prologue
.save ar.lc, r2
.body
ifdef(`HAVE_ABI_32',`
addp4 rp = 0, rp C M I
addp4 up = 0, up C M I
nop.i 0
addp4 vp = 0, vp C M I
nop.m 0
zxt4 n = n C I
;;
')
{.mmi; ld8 r11 = [vp], 8 C M01
ld8 r10 = [up], 8 C M01
mov.i r2 = ar.lc C I0
}{.mmi; and r14 = 3, n C M I
cmp.lt p15, p0 = 4, n C M I
add n = -5, n C M I
;;
}{.mmi; cmp.eq p6, p0 = 1, r14 C M I
cmp.eq p7, p0 = 2, r14 C M I
cmp.eq p8, p0 = 3, r14 C M I
}{.bbb
(p6) br.dptk .Lb01 C B
(p7) br.dptk .Lb10 C B
(p8) br.dptk .Lb11 C B
}
.Lb00:
{.mmi; ld8 v0 = [vp], 8 C M01
ld8 u0 = [up], 8 C M01
shr.u n = n, 2 C I0
;;
}{.mmi; ld8 v1 = [vp], 8 C M01
ld8 u1 = [up], 8 C M01
shl x3 = r11, LSH C I0
;;
}{.mmi; ld8 v2 = [vp], 8 C M01
ld8 u2 = [up], 8 C M01
shrp x0 = v0, r11, 64-LSH C I0
}{.mmb; ADDSUB( w3, r10, x3) C M I
nop 0
(p15) br.dpnt .grt4 C B
;;
}{.mii; CMP( p7, w3, r10, x3) C M II0
shrp x1 = v1, v0, 64-LSH C I0
ADDSUB( w0, u0, x0) C M I
;;
}{.mii; CMP( p8, w0, u0, x0) C M I
shrp x2 = v2, v1, 64-LSH C I0
ADDSUB( w1, u1, x1) C M I
}{.mmb; nop 0
nop 0
br .Lcj4 C B
}
ALIGN(32)
.grt4:
{.mii; ld8 v3 = [vp], 8 C M01
shrp x0 = v0, r11, 64-LSH C I0
CMP( p8, w3, r10, x3) C M I
;;
}{.mmi; ld8 u3 = [up], 8 C M01
add r11 = PFDIST, vp
shrp x1 = v1, v0, 64-LSH C I0
}{.mmi; ld8 v0 = [vp], 8 C M01
ADDSUB( w0, u0, x0) C M I
nop 0
;;
}{.mmi; CMP( p6, w0, u0, x0) C M I
add r10 = PFDIST, up
mov.i ar.lc = n C I0
}{.mmb; ADDSUB( w1, u1, x1) C M I
ld8 u0 = [up], 8 C M01
br .LL00 C B
}
ALIGN(32)
.Lb01:
ifdef(`DO_add',
` shladd w2 = r11, LSH, r10 C M I
shr.u r8 = r11, 64-LSH C retval I0
(p15) br.dpnt .grt1 C B
;;
',`
shl x2 = r11, LSH C I0
(p15) br.dpnt .grt1 C B
;;
ADDSUB( w2, r10, x2) C M I
shr.u r8 = r11, 64-LSH C retval I0
;;
')
CMP( p6, w2, r10, x2) C M I
br .Lcj1
.grt1: ld8 v3 = [vp], 8 C M01
ld8 u3 = [up], 8 C M01
shr.u n = n, 2 C I0
;;
ld8 v0 = [vp], 8 C M01
ld8 u0 = [up], 8 C M01
mov.i ar.lc = n C FIXME swap with next I0
ifdef(`DO_add',
`',`
ADDSUB( w2, r10, x2)
')
;;
{.mmi; ld8 v1 = [vp], 8 C M01
ld8 u1 = [up], 8 C M01
shrp x3 = v3, r11, 64-LSH C I0
;;
}{.mmi; ld8 v2 = [vp], 8 C M01
ld8 u2 = [up], 8 C M01
shrp x0 = v0, v3, 64-LSH C I0
}{.mmb; CMP( p6, w2, r10, x2) C M I
ADDSUB( w3, u3, x3) C M I
br.cloop.dptk .grt5 C B
;;
}{.mmi; CMP( p7, w3, u3, x3) C M I
ADDSUB( w0, u0, x0) C M I
shrp x1 = v1, v0, 64-LSH C I0
}{.mmb; nop 0
nop 0
br .Lcj5 C B
}
.grt5:
{.mmi; add r10 = PFDIST, up
add r11 = PFDIST, vp
shrp x0 = v0, v3, 64-LSH C I0
}{.mmb; ld8 v3 = [vp], 8 C M01
CMP( p8, w3, u3, x3) C M I
br .LL01 C B
}
ALIGN(32)
.Lb10:
{.mmi; ld8 v2 = [vp], 8 C M01
ld8 u2 = [up], 8 C M01
shl x1 = r11, LSH C I0
}{.mmb; nop 0
nop 0
(p15) br.dpnt .grt2 C B
;;
}{.mmi; ADDSUB( w1, r10, x1) C M I
nop 0
shrp x2 = v2, r11, 64-LSH C I0
;;
}{.mmi; CMP( p9, w1, r10, x1) C M I
ADDSUB( w2, u2, x2) C M I
shr.u r8 = v2, 64-LSH C retval I0
;;
}{.mmb; CMP( p6, w2, u2, x2) C M I
nop 0
br .Lcj2 C B
}
.grt2:
{.mmi; ld8 v3 = [vp], 8 C M01
ld8 u3 = [up], 8 C M01
shr.u n = n, 2 C I0
;;
}{.mmi; ld8 v0 = [vp], 8 C M01
ld8 u0 = [up], 8 C M01
mov.i ar.lc = n C I0
}{.mmi; ADDSUB( w1, r10, x1) C M I
nop 0
nop 0
;;
}{.mii; ld8 v1 = [vp], 8 C M01
shrp x2 = v2, r11, 64-LSH C I0
CMP( p8, w1, r10, x1) C M I
;;
}{.mmi; add r10 = PFDIST, up
ld8 u1 = [up], 8 C M01
shrp x3 = v3, v2, 64-LSH C I0
}{.mmi; add r11 = PFDIST, vp
ld8 v2 = [vp], 8 C M01
ADDSUB( w2, u2, x2) C M I
;;
}{.mmi; CMP( p6, w2, u2, x2) C M I
ld8 u2 = [up], 8 C M01
shrp x0 = v0, v3, 64-LSH C I0
}{.mib; ADDSUB( w3, u3, x3) C M I
nop 0
br.cloop.dpnt L(top) C B
}
br L(end) C B
.Lb11:
{.mmi; ld8 v1 = [vp], 8 C M01
ld8 u1 = [up], 8 C M01
shl x0 = r11, LSH C I0
;;
}{.mmi; ld8 v2 = [vp], 8 C M01
ld8 u2 = [up], 8 C M01
shr.u n = n, 2 C I0
}{.mmb; nop 0
nop 0
(p15) br.dpnt .grt3 C B
;;
}{.mii; nop 0
shrp x1 = v1, r11, 64-LSH C I0
ADDSUB( w0, r10, x0) C M I
;;
}{.mii; CMP( p8, w0, r10, x0) C M I
shrp x2 = v2, v1, 64-LSH C I0
ADDSUB( w1, u1, x1) C M I
;;
}{.mmb; CMP( p9, w1, u1, x1) C M I
ADDSUB( w2, u2, x2) C M I
br .Lcj3 C B
}
.grt3:
{.mmi; ld8 v3 = [vp], 8 C M01
ld8 u3 = [up], 8 C M01
shrp x1 = v1, r11, 64-LSH C I0
}{.mmi; ADDSUB( w0, r10, x0) C M I
nop 0
nop 0
;;
}{.mmi; ld8 v0 = [vp], 8 C M01
CMP( p6, w0, r10, x0) C M I
mov.i ar.lc = n C I0
}{.mmi; ld8 u0 = [up], 8 C M01
ADDSUB( w1, u1, x1) C M I
nop 0
;;
}{.mmi; add r10 = PFDIST, up
add r11 = PFDIST, vp
shrp x2 = v2, v1, 64-LSH C I0
}{.mmb; ld8 v1 = [vp], 8 C M01
CMP( p8, w1, u1, x1) C M I
br .LL11 C B
}
C *** MAIN LOOP START ***
ALIGN(32)
L(top): st8 [rp] = w1, 8 C M23
lfetch [r10], 32
(p8) cmpeqor p6, p0 = LIM, w2 C M I
(p8) add w2 = INCR, w2 C M I
ld8 v3 = [vp], 8 C M01
CMP( p8, w3, u3, x3) C M I
;;
.LL01: ld8 u3 = [up], 8 C M01
shrp x1 = v1, v0, 64-LSH C I0
(p6) cmpeqor p8, p0 = LIM, w3 C M I
(p6) add w3 = INCR, w3 C M I
ld8 v0 = [vp], 8 C M01
ADDSUB( w0, u0, x0) C M I
;;
st8 [rp] = w2, 8 C M23
CMP( p6, w0, u0, x0) C M I
nop.b 0
ld8 u0 = [up], 8 C M01
lfetch [r11], 32
ADDSUB( w1, u1, x1) C M I
;;
.LL00: st8 [rp] = w3, 8 C M23
shrp x2 = v2, v1, 64-LSH C I0
(p8) cmpeqor p6, p0 = LIM, w0 C M I
(p8) add w0 = INCR, w0 C M I
ld8 v1 = [vp], 8 C M01
CMP( p8, w1, u1, x1) C M I
;;
.LL11: ld8 u1 = [up], 8 C M01
shrp x3 = v3, v2, 64-LSH C I0
(p6) cmpeqor p8, p0 = LIM, w1 C M I
(p6) add w1 = INCR, w1 C M I
ld8 v2 = [vp], 8 C M01
ADDSUB( w2, u2, x2) C M I
;;
{.mmi; st8 [rp] = w0, 8 C M23
CMP( p6, w2, u2, x2) C M I
shrp x0 = v0, v3, 64-LSH C I0
}{.mib;
ld8 u2 = [up], 8 C M01
ADDSUB( w3, u3, x3) C M I
br.cloop.dptk L(top) C B
;;
}
C *** MAIN LOOP END ***
L(end):
{.mmi; st8 [rp] = w1, 8 C M23
(p8) cmpeqor p6, p0 = LIM, w2 C M I
shrp x1 = v1, v0, 64-LSH C I0
}{.mmi;
(p8) add w2 = INCR, w2 C M I
CMP( p7, w3, u3, x3) C M I
ADDSUB( w0, u0, x0) C M I
;;
}
.Lcj5:
{.mmi; st8 [rp] = w2, 8 C M23
(p6) cmpeqor p7, p0 = LIM, w3 C M I
shrp x2 = v2, v1, 64-LSH C I0
}{.mmi;
(p6) add w3 = INCR, w3 C M I
CMP( p8, w0, u0, x0) C M I
ADDSUB( w1, u1, x1) C M I
;;
}
.Lcj4:
{.mmi; st8 [rp] = w3, 8 C M23
(p7) cmpeqor p8, p0 = LIM, w0 C M I
mov.i ar.lc = r2 C I0
}{.mmi;
(p7) add w0 = INCR, w0 C M I
CMP( p9, w1, u1, x1) C M I
ADDSUB( w2, u2, x2) C M I
;;
}
.Lcj3:
{.mmi; st8 [rp] = w0, 8 C M23
(p8) cmpeqor p9, p0 = LIM, w1 C M I
shr.u r8 = v2, 64-LSH C I0
}{.mmi;
(p8) add w1 = INCR, w1 C M I
CMP( p6, w2, u2, x2) C M I
nop 0
;;
}
.Lcj2:
{.mmi; st8 [rp] = w1, 8 C M23
(p9) cmpeqor p6, p0 = LIM, w2 C M I
(p9) add w2 = INCR, w2 C M I
;;
}
.Lcj1:
{.mmb; st8 [rp] = w2 C M23
ifdef(`DO_rsb',`
(p6) add r8 = -1, r8 C M I
',`
(p6) add r8 = 1, r8 C M I
') br.ret.sptk.many b0 C B
}
EPILOGUE()
ASM_END()
|
