1dnl IA-64 mpn_sqr_diagonal. Helper for sqr_basecase. 2 3dnl Copyright 2001, 2002, 2004 Free Software Foundation, Inc. 4 5dnl This file is part of the GNU MP Library. 6 7dnl The GNU MP Library is free software; you can redistribute it and/or modify 8dnl it under the terms of the GNU Lesser General Public License as published 9dnl by the Free Software Foundation; either version 3 of the License, or (at 10dnl your option) any later version. 11 12dnl The GNU MP Library is distributed in the hope that it will be useful, but 13dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 14dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 15dnl License for more details. 16 17dnl You should have received a copy of the GNU Lesser General Public License 18dnl along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. 19 20include(`../config.m4') 21 22C cycles/limb 23C Itanium: 4 24C Itanium 2: 2 25 26C TODO 27C * Perhaps avoid ctop loop. Unfortunately, a cloop loop running at 1 c/l 28C would need prohibitive 8-way unrolling. 29C * Instead of messing too much with this, write a nifty mpn_sqr_basecase. 30 31C INPUT PARAMETERS 32C rp = r32 33C sp = r33 34C n = r34 35 36ASM_START() 37PROLOGUE(mpn_sqr_diagonal) 38 .prologue 39 .save ar.lc, r2 40 .save pr, r15 41 .body 42ifdef(`HAVE_ABI_32', 43` addp4 r32 = 0, r32 44 addp4 r33 = 0, r33 45 zxt4 r34 = r34 46 ;; 47') 48 ldf8 f32 = [r33], 8 C M load rp[0] early 49 mov r2 = ar.lc C I0 50 mov r14 = ar.ec C I0 51 mov r15 = pr C I0 52 add r19 = -1, r34 C M I decr n 53 add r18 = 8, r32 C M I rp for high limb 54 ;; 55 mov ar.lc = r19 C I0 56 mov ar.ec = 5 C I0 57 mov pr.rot = 1<<16 C I0 58 ;; 59 br.cexit.spnt .Ldone C B 60 ;; 61 ALIGN(32) 62.Loop: 63 (p16) ldf8 f32 = [r33], 8 C M 64 (p19) xma.l f36 = f35, f35, f0 C F 65 (p21) stf8 [r32] = f38, 16 C M2 M3 66 (p19) xma.hu f40 = f35, f35, f0 C F 67 (p21) stf8 [r18] = f42, 16 C M2 M3 68 br.ctop.dptk .Loop C B 69 ;; 70.Ldone: 71 stf8 [r32] = f38 C M2 M3 72 stf8 [r18] = f42 C M2 M3 73 mov ar.ec = r14 C I0 74 ;; 75 mov pr = r15, 0x1ffff C I0 76 mov ar.lc = r2 C I0 77 br.ret.sptk.many b0 C B 78EPILOGUE(mpn_sqr_diagonal) 79ASM_END() 80