From c0439b95b88bccacb5562e372f881beb23376a72 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Wed, 26 Nov 2008 07:26:32 +0000 Subject: Moved alpha to ports repository. 2008-11-25 Roland McGrath * sysdeps/alpha, sysdeps/unix/bsd/osf/alpha, sysdeps/unix/bsd/Attic/osf1/alpha, sysdeps/unix/sysv/linux/alpha, sysdeps/unix/sysv/linux/alpha/alpha, sysdeps/unix/alpha, sysdeps/mach/alpha, sysdeps/mach/hurd/alpha: Subdirectories moved to ports repository. * configure.in (base_machine): Remove alpha case. --- sysdeps/alpha/lshift.s | 109 ------------------------------------------------- 1 file changed, 109 deletions(-) delete mode 100644 sysdeps/alpha/lshift.s (limited to 'sysdeps/alpha/lshift.s') diff --git a/sysdeps/alpha/lshift.s b/sysdeps/alpha/lshift.s deleted file mode 100644 index 42fb430dd4..0000000000 --- a/sysdeps/alpha/lshift.s +++ /dev/null @@ -1,109 +0,0 @@ - # Alpha 21064 __mpn_lshift -- - - # Copyright (C) 1994, 1995 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 2.1 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; see the file COPYING.LIB. If not, write to - # the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, - # MA 02111-1307, USA. - - - # INPUT PARAMETERS - # res_ptr r16 - # s1_ptr r17 - # size r18 - # cnt r19 - - # This code runs at 4.8 cycles/limb on the 21064. With infinite unrolling, - # it would take 4 cycles/limb. It should be possible to get down to 3 - # cycles/limb since both ldq and stq can be paired with the other used - # instructions. But there are many restrictions in the 21064 pipeline that - # makes it hard, if not impossible, to get down to 3 cycles/limb: - - # 1. ldq has a 3 cycle delay, srl and sll have a 2 cycle delay. - # 2. Only aligned instruction pairs can be paired. - # 3. The store buffer or silo might not be able to deal with the bandwidth. - - .set noreorder - .set noat -.text - .align 3 - .globl __mpn_lshift - .ent __mpn_lshift -__mpn_lshift: - .frame $30,0,$26,0 - - s8addq $18,$17,$17 # make r17 point at end of s1 - ldq $4,-8($17) # load first limb - subq $17,8,$17 - subq $31,$19,$7 - s8addq $18,$16,$16 # make r16 point at end of RES - subq $18,1,$18 - and $18,4-1,$20 # number of limbs in first loop - srl $4,$7,$0 # compute function result - - beq $20,.L0 - subq $18,$20,$18 - - .align 3 -.Loop0: - ldq $3,-8($17) - subq $16,8,$16 - subq $17,8,$17 - subq $20,1,$20 - sll $4,$19,$5 - srl $3,$7,$6 - bis $3,$3,$4 - bis $5,$6,$8 - stq $8,0($16) - bne $20,.Loop0 - -.L0: beq $18,.Lend - - .align 3 -.Loop: ldq $3,-8($17) - subq $16,32,$16 - subq $18,4,$18 - sll $4,$19,$5 - srl $3,$7,$6 - - ldq $4,-16($17) - sll $3,$19,$1 - bis $5,$6,$8 - stq $8,24($16) - srl $4,$7,$2 - - ldq $3,-24($17) - sll $4,$19,$5 - bis $1,$2,$8 - stq $8,16($16) - srl $3,$7,$6 - - ldq $4,-32($17) - sll $3,$19,$1 - bis $5,$6,$8 - stq $8,8($16) - srl $4,$7,$2 - - subq $17,32,$17 - bis $1,$2,$8 - stq $8,0($16) - - bgt $18,.Loop - -.Lend: sll $4,$19,$8 - stq $8,-8($16) - ret $31,($26),1 - .end __mpn_lshift -- cgit 1.4.1