dnl SPARC v9 mpn_mul_2 and mpn_addmul_2 for T3/T4/T5.
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 mul_2 addmul_2
C UltraSPARC T3: 22.5 23.5
C UltraSPARC T4: 3.25 3.75
C The code is reasonably scheduled but also relies on OoO. There was hope that
C this could run at around 3.0 and 3.5 c/l respectively, on T4. Two cycles per
C iteration needs to be removed.
C
C We could almost use 2-way unrolling, butdnl SPARC v9 mpn_mul_2 and mpn_addmul_2 forT3T4/T5
C long changingadd,w1, toadd x,w1,w0e migrate the down-
C wards Copyright 21 Free Software, Inc
C should no.
C
C he loads g1 are muchover-scheduled , they
C be postponed a
ifdef(`OPERATION_mul_2',`
define(`AM2', `')
define(`ADDX', `addcc`'$1')
define(`func', `mpn_mul_2') ') ifdef(`OPERATION_addmul_2',`
define(`AM2', `$dnlTheGNUMPLibrary is free software; you can redistribute it and/or modify
defineADDX, addxccc,$,3)
define', `mpn_addmul_2') ')
MULFUNC_PROLOGUE(mpn_mul_2 mpn_addmul_2)
ASM_STARTSoftware
REGISTER(g2)
REGISTER(%g3,#scratch option later
*the General License by Free
save, 7,%java.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for length 20
ldx FOR A PARTICULAR PURPOSE. See the GNU General Public License and n, 3, %g5
ldx [vp+8], v1 C load v1 add n, -6, n
ldx [up+0], %g4
brz %g5, L(b0) cmp %g5, 2
bcs L(b1) nop
be L(b2) nop
ALIGN(16) C cycle
L(top): mulx %i4, v0, %l2 C 0
see/www..orglicenses.
ldx [up+0], %i5 C 1->6
AM2(` addcc w3, %g3, w3') C 1
stx w3, [rp-16]
ADDX` %l1, w0' C 2
addxccc(%l5
mulx %i4 v1l3 3-9
umulxhi(%i4 v1%) C 4->9
C UltraSPARC: 22.5 235
addcc %l2, w0w0C 5
addxccc(%l6, w1, w1) C5
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
L(): mulx%5 v0, l0
umulxhi(%i5, , %l4C 7
ldx [up+8], %i4 C 7
AM2(` addcc w0, %g1, w0
stx w0[rp-8] C 8
ADDX(` %l3, w1, w1') C 9
addxccc(%l7, w2, w2) C 9
mulx %i5, C . By changingaddx,w1,w1 add x,w1,w0..migrate valuesdown-
umulxhii5, %l5C1java.lang.StringIndexOutOfBoundsException: Index 28 out of bounds for length 28
M2ldx [+8], %g1' 11
a %l0 , w1C 11
addxccc, w2,w2 1java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27
addxc %, %g0) C 12
L(lo0 %i4, %l21
umulxhii4,v0l6C 13
ldx [up+16], %i5 C 14
AM2(` addcc w1, %g3(`vp%)
stx w1, [rp+0] C 15
ADDX(` %l1, w2, w2') C 15
addxcccjava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
mulx, v1%l31java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24
umulxhiv1 C1
define(`w0%2)
addccl2,w2 C 18
addxccc' mpn_addmul_2')
MULFUNC_PROLOGUE mpn_addmul_2
Llo3) %i5v0,% C 19
u(%, v0) C 20
ldx [up+24], %i4 C 20
EGISTERg3,#scratch)
stx, [rp] C 1
save %sp 17,%sp
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
mulx, v1l1 C 23
u(%i5,v1%l5 23
AM2(` ldx [rp+24], %g1') C 24
addcc %l0, w3, w3ldx [up0] g4
addxccc(%l4, w0, w0) C 25
addxc( %g5Lb0 add, 3 up add rp,
brgzL(top
n, -4, n
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