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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 3 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. If not, see http://www.gnu.org/licenses/.
include(`../config.m4')
C cycles/limb
C Itanium: 3.0
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()
|
