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dnl IA-64 mpn_addlsh1_n/mpn_sublsh1_n -- rp[] = up[] +- (vp[] << 1).
dnl Copyright 2003, 2004, 2005 Free Software Foundation, Inc.
dnl This file is part of the GNU MP Library.
dnl The GNU MP Library is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU Lesser General Public License as published
dnl by the Free Software Foundation; either version 2.1 of the License, or (at
dnl your option) any later version.
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 Lesser General Public
dnl License for more details.
dnl You should have received a copy of the GNU Lesser General Public License
dnl along with the GNU MP Library; see the file COPYING.LIB. If not, write
dnl to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
dnl Boston, MA 02110-1301, USA.
include(`../config.m4')
C cycles/limb
C Itanium 2: 1.5
C TODO
C * Use shladd in feed-in code (for mpn_addlsh1_n).
C INPUT PARAMETERS
define(`rp',`r32')
define(`up',`r33')
define(`vp',`r34')
define(`n',`r35')
ifdef(`OPERATION_addlsh1_n',`
define(ADDSUB, add)
define(PRED, ltu)
define(INCR, 1)
define(LIM, -1)
define(func, mpn_addlsh1_n)
')
ifdef(`OPERATION_sublsh1_n',`
define(ADDSUB, sub)
define(PRED, gtu)
define(INCR, -1)
define(LIM, 0)
define(func, mpn_sublsh1_n)
')
C Some useful aliases for registers we use
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',`r30') define(`x3',`r31')
MULFUNC_PROLOGUE(mpn_addlsh1_n mpn_sublsh1_n)
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
addp4 vp = 0, vp C M I
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 = -4, 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: ld8 v0 = [vp], 8 C M01
ld8 u0 = [up], 8 C M01
shr.u n = n, 2 C I0
;;
ld8 v1 = [vp], 8 C M01
ld8 u1 = [up], 8 C M01
add x3 = r11, r11 C M I
;;
ld8 v2 = [vp], 8 C M01
ld8 u2 = [up], 8 C M01
ADDSUB w3 = r10, x3 C M I
(p15) br.dpnt .grt4 C B
;;
shrp x0 = v0, r11, 63 C I0
cmp.PRED p8, p0 = w3, r10 C M I
;;
shrp x1 = v1, v0, 63 C I0
ADDSUB w0 = u0, x0 C M I
;;
cmp.PRED p6, p0 = w0, u0 C M I
ADDSUB w1 = u1, x1 C M I
br .Lcj4 C B
.grt4: ld8 v3 = [vp], 8 C M01
shrp x0 = v0, r11, 63 C I0
cmp.PRED p8, p0 = w3, r10 C M I
add n = -1, n
;;
ld8 u3 = [up], 8 C M01
mov.i ar.lc = n C I0
shrp x1 = v1, v0, 63 C I0
ld8 v0 = [vp], 8 C M01
ADDSUB w0 = u0, x0 C M I
;;
cmp.PRED p6, p0 = w0, u0 C M I
ld8 u0 = [up], 8 C M01
ADDSUB w1 = u1, x1 C M I
br .LL00 C B
.Lb01: add x2 = r11, r11 C M I
shr.u n = n, 2 C I0
(p15) br.dpnt .grt1 C B
;;
ADDSUB w2 = r10, x2 C M I
shr.u r8 = r11, 63 C retval I0
;;
cmp.PRED p6, p0 = w2, r10 C M I
;;
st8 [rp] = w2, 8 C M23
(p6) add r8 = 1, r8 C M I
br.ret.sptk.many b0 C B
.grt1: ld8 v3 = [vp], 8 C M01
ld8 u3 = [up], 8 C M01
mov.i ar.lc = n C FIXME swap with next I0
;;
ld8 v0 = [vp], 8 C M01
ld8 u0 = [up], 8 C M01
ADDSUB w2 = r10, x2
;;
ld8 v1 = [vp], 8 C M01
ld8 u1 = [up], 8 C M01
shrp x3 = v3, r11, 63 C I0
;;
ld8 v2 = [vp], 8 C M01
ld8 u2 = [up], 8 C M01
cmp.PRED p6, p0 = w2, r10 C M I
ADDSUB w3 = u3, x3 C M I
br.cloop.dptk .grt5 C B
;;
shrp x0 = v0, v3, 63 C I0
cmp.PRED p8, p0 = w3, u3 C M I
br .Lcj5 C B
.grt5: shrp x0 = v0, v3, 63 C I0
ld8 v3 = [vp], 8 C M01
cmp.PRED p8, p0 = w3, u3 C M I
br .LL01 C B
.Lb10: ld8 v2 = [vp], 8 C M01
ld8 u2 = [up], 8 C M01
shr.u n = n, 2 C I0
add x1 = r11, r11 C M I
(p15) br.dpnt .grt2 C B
;;
ADDSUB w1 = r10, x1 C M I
shrp x2 = v2, r11, 63 C I0
;;
cmp.PRED p8, p0 = w1, r10 C M I
ADDSUB w2 = u2, x2 C M I
shr.u r8 = v2, 63 C retval I0
;;
cmp.PRED p6, p0 = w2, u2 C M I
br .Lcj2 C B
.grt2: ld8 v3 = [vp], 8 C M01
ld8 u3 = [up], 8 C M01
mov.i ar.lc = n C I0
;;
ld8 v0 = [vp], 8 C M01
ld8 u0 = [up], 8 C M01
ADDSUB w1 = r10, x1 C M I
;;
ld8 v1 = [vp], 8 C M01
shrp x2 = v2, r11, 63 C I0
cmp.PRED p8, p0 = w1, r10 C M I
;;
ld8 u1 = [up], 8 C M01
shrp x3 = v3, v2, 63 C I0
ld8 v2 = [vp], 8 C M01
ADDSUB w2 = u2, x2 C M I
;;
cmp.PRED p6, p0 = w2, u2 C M I
ld8 u2 = [up], 8 C M01
ADDSUB w3 = u3, x3 C M I
br.cloop.dpnt .Loop C B
br .Lskip C B
.Lb11: ld8 v1 = [vp], 8 C M01
ld8 u1 = [up], 8 C M01
shr.u n = n, 2 C I0
add x0 = r11, r11 C M I
;;
ld8 v2 = [vp], 8 C M01
ld8 u2 = [up], 8 C M01
(p15) br.dpnt .grt3 C B
;;
shrp x1 = v1, r11, 63 C I0
ADDSUB w0 = r10, x0 C M I
;;
cmp.PRED p6, p0 = w0, r10 C M I
ADDSUB w1 = u1, x1 C M I
;;
shrp x2 = v2, v1, 63 C I0
cmp.PRED p8, p0 = w1, u1 C M I
br .Lcj3 C B
.grt3: ld8 v3 = [vp], 8 C M01
ld8 u3 = [up], 8 C M01
mov.i ar.lc = n C I0
shrp x1 = v1, r11, 63 C I0
ADDSUB w0 = r10, x0 C M I
;;
ld8 v0 = [vp], 8 C M01
cmp.PRED p6, p0 = w0, r10 C M I
ld8 u0 = [up], 8 C M01
ADDSUB w1 = u1, x1 C M I
;;
shrp x2 = v2, v1, 63 C I0
ld8 v1 = [vp], 8 C M01
cmp.PRED p8, p0 = w1, u1 C M I
br .LL11 C B
C *** MAIN LOOP START ***
ALIGN(32)
.Loop: st8 [rp] = w1, 8 C M23
shrp x0 = v0, v3, 63 C I0
(p8) cmp.eq.or p6, p0 = LIM, w2 C M I
(p8) add w2 = INCR, w2 C M I
ld8 v3 = [vp], 8 C M01
cmp.PRED p8, p0 = w3, u3 C M I
;;
.LL01: ld8 u3 = [up], 8 C M01
shrp x1 = v1, v0, 63 C I0
(p6) cmp.eq.or 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.PRED p6, p0 = w0, u0 C M I
ld8 u0 = [up], 8 C M01
ADDSUB w1 = u1, x1 C M I
;;
.LL00: st8 [rp] = w3, 8 C M23
shrp x2 = v2, v1, 63 C I0
(p8) cmp.eq.or p6, p0 = LIM, w0 C M I
(p8) add w0 = INCR, w0 C M I
ld8 v1 = [vp], 8 C M01
cmp.PRED p8, p0 = w1, u1 C M I
;;
.LL11: ld8 u1 = [up], 8 C M01
shrp x3 = v3, v2, 63 C I0
(p6) cmp.eq.or 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
;;
st8 [rp] = w0, 8 C M23
cmp.PRED p6, p0 = w2, u2 C M I
ld8 u2 = [up], 8 C M01
ADDSUB w3 = u3, x3 C M I
br.cloop.dptk .Loop C B
;;
C *** MAIN LOOP END ***
.Lskip: st8 [rp] = w1, 8 C M23
shrp x0 = v0, v3, 63 C I0
(p8) cmp.eq.or p6, p0 = LIM, w2 C M I
(p8) add w2 = INCR, w2 C M I
cmp.PRED p8, p0 = w3, u3 C M I
;;
.Lcj5: shrp x1 = v1, v0, 63 C I0
(p6) cmp.eq.or p8, p0 = LIM, w3 C M I
(p6) add w3 = INCR, w3 C M I
ADDSUB w0 = u0, x0 C M I
;;
st8 [rp] = w2, 8 C M23
cmp.PRED p6, p0 = w0, u0 C M I
ADDSUB w1 = u1, x1 C M I
;;
.Lcj4: st8 [rp] = w3, 8 C M23
shrp x2 = v2, v1, 63 C I0
(p8) cmp.eq.or p6, p0 = LIM, w0 C M I
(p8) add w0 = INCR, w0 C M I
cmp.PRED p8, p0 = w1, u1 C M I
;;
.Lcj3: shr.u r8 = v2, 63 C I0
(p6) cmp.eq.or p8, p0 = LIM, w1 C M I
(p6) add w1 = INCR, w1 C M I
ADDSUB w2 = u2, x2 C M I
;;
st8 [rp] = w0, 8 C M23
cmp.PRED p6, p0 = w2, u2 C M I
;;
.Lcj2: st8 [rp] = w1, 8 C M23
(p8) cmp.eq.or p6, p0 = LIM, w2 C M I
(p8) add w2 = INCR, w2 C M I
;;
.Lcj1: st8 [rp] = w2, 8 C M23
mov.i ar.lc = r2 C I0
(p6) add r8 = 1, r8 C M I
br.ret.sptk.many b0 C B
EPILOGUE()
ASM_END()
|
