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| author | David S. Miller <davem@davemloft.net> | 2013-01-10 16:15:32 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-01-10 16:15:32 -0800 |
| commit | b9de2dde539ff09325818fb65391accd2c4a1c79 (patch) | |
| tree | a225c18b8341efa52aaf954bf0f72b6122d07fee /sysdeps/sparc/sparc32/sparcv9/addmul_1.S | |
| parent | 55d984e037cdeecf03268e1895d7cd1c5905dbd1 (diff) | |
| download | glibc-b9de2dde539ff09325818fb65391accd2c4a1c79.tar.gz glibc-b9de2dde539ff09325818fb65391accd2c4a1c79.tar.xz glibc-b9de2dde539ff09325818fb65391accd2c4a1c79.zip | |
Optimize sparc 32-bit V9 GMP multiply routines.
* sysdeps/sparc/sparc32/sparcv9/mul_1.S: Properly optimize for 32-bit sparc V9 rather than using V8 code. * sysdeps/sparc/sparc32/sparcv9/addmul_1.S: Likewise. * sysdeps/sparc/sparc32/sparcv9/submul_1.S: Likewise.
Diffstat (limited to 'sysdeps/sparc/sparc32/sparcv9/addmul_1.S')
| -rw-r--r-- | sysdeps/sparc/sparc32/sparcv9/addmul_1.S | 72 |
1 files changed, 71 insertions, 1 deletions
diff --git a/sysdeps/sparc/sparc32/sparcv9/addmul_1.S b/sysdeps/sparc/sparc32/sparcv9/addmul_1.S index 563bfb1c0a..875a80898e 100644 --- a/sysdeps/sparc/sparc32/sparcv9/addmul_1.S +++ b/sysdeps/sparc/sparc32/sparcv9/addmul_1.S @@ -1 +1,71 @@ -#include <sparcv8/addmul_1.S> +! SPARC v9 32-bit mpn_addmul_1. +! +! Copyright 2010-2013 Free Software Foundation, Inc. +! +! This file is part of the GNU MP Library. +! +! The GNU MP Library is free software; you can redistribute it and/or modify +! it under the terms of the GNU Lesser General Public License as published +! by the Free Software Foundation; either version 3 of the License, or (at +! your option) any later version. + +! The GNU MP Library is distributed in the hope that it will be useful, but +! WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +! or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public +! License for more details. +! +! You should have received a copy of the GNU Lesser General Public License +! along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. + +! INPUT PARAMETERS +! res_ptr %i0 +! s1_ptr %i1 +! size %i2 +! s2_limb %i3 + +#include <sysdep.h> + +ENTRY(__mpn_addmul_1) + save %sp, -96, %sp + srl %i2, 0, %o4 + srl %i3, 0, %g1 + subcc %o4, 1, %o4 + be .Lfinal_one + clr %o5 + +.Ltop: + lduw [%i1+0], %l0 + lduw [%i0+0], %l2 + lduw [%i1+4], %l1 + lduw [%i0+4], %l3 + mulx %l0, %g1, %g3 + add %i1, 8, %i1 + mulx %l1, %g1, %o3 + sub %o4, 2, %o4 + add %i0, 8, %i0 + add %l2, %g3, %g3 + add %o5, %g3, %g3 + stw %g3, [%i0-8] + srlx %g3, 32, %o5 + add %l3, %o3, %o3 + add %o5, %o3, %o3 + stw %o3, [%i0-4] + brgz %o4, .Ltop + srlx %o3, 32, %o5 + + brlz,pt %o4, .Ldone + nop + +.Lfinal_one: + lduw [%i1+0], %l0 + lduw [%i0+0], %l2 + mulx %l0, %g1, %g3 + add %l2, %g3, %g3 + add %o5, %g3, %g3 + stw %g3, [%i0+0] + srlx %g3, 32, %o5 + +.Ldone: + jmpl %i7 + 8, %g0 + restore %o5, 0, %o0 +END(__mpn_addmul_1) |