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annotate src/fftw-3.3.8/dft/scalar/codelets/n1_5.c @ 83:ae30d91d2ffe

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Replace these with versions built using an older toolset (so as to avoid ABI compatibilities when linking on Ubuntu 14.04 for packaging purposes)
author Chris Cannam
date Fri, 07 Feb 2020 11:51:13 +0000
parents d0c2a83c1364
children
rev   line source
Chris@82 1 /*
Chris@82 2 * Copyright (c) 2003, 2007-14 Matteo Frigo
Chris@82 3 * Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
Chris@82 4 *
Chris@82 5 * This program is free software; you can redistribute it and/or modify
Chris@82 6 * it under the terms of the GNU General Public License as published by
Chris@82 7 * the Free Software Foundation; either version 2 of the License, or
Chris@82 8 * (at your option) any later version.
Chris@82 9 *
Chris@82 10 * This program is distributed in the hope that it will be useful,
Chris@82 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@82 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
Chris@82 13 * GNU General Public License for more details.
Chris@82 14 *
Chris@82 15 * You should have received a copy of the GNU General Public License
Chris@82 16 * along with this program; if not, write to the Free Software
Chris@82 17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Chris@82 18 *
Chris@82 19 */
Chris@82 20
Chris@82 21 /* This file was automatically generated --- DO NOT EDIT */
Chris@82 22 /* Generated on Thu May 24 08:04:10 EDT 2018 */
Chris@82 23
Chris@82 24 #include "dft/codelet-dft.h"
Chris@82 25
Chris@82 26 #if defined(ARCH_PREFERS_FMA) || defined(ISA_EXTENSION_PREFERS_FMA)
Chris@82 27
Chris@82 28 /* Generated by: ../../../genfft/gen_notw.native -fma -compact -variables 4 -pipeline-latency 4 -n 5 -name n1_5 -include dft/scalar/n.h */
Chris@82 29
Chris@82 30 /*
Chris@82 31 * This function contains 32 FP additions, 18 FP multiplications,
Chris@82 32 * (or, 14 additions, 0 multiplications, 18 fused multiply/add),
Chris@82 33 * 21 stack variables, 4 constants, and 20 memory accesses
Chris@82 34 */
Chris@82 35 #include "dft/scalar/n.h"
Chris@82 36
Chris@82 37 static void n1_5(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, INT v, INT ivs, INT ovs)
Chris@82 38 {
Chris@82 39 DK(KP951056516, +0.951056516295153572116439333379382143405698634);
Chris@82 40 DK(KP559016994, +0.559016994374947424102293417182819058860154590);
Chris@82 41 DK(KP250000000, +0.250000000000000000000000000000000000000000000);
Chris@82 42 DK(KP618033988, +0.618033988749894848204586834365638117720309180);
Chris@82 43 {
Chris@82 44 INT i;
Chris@82 45 for (i = v; i > 0; i = i - 1, ri = ri + ivs, ii = ii + ivs, ro = ro + ovs, io = io + ovs, MAKE_VOLATILE_STRIDE(20, is), MAKE_VOLATILE_STRIDE(20, os)) {
Chris@82 46 E T1, Tl, T8, Tt, Ta, Ts, Te, Tq, Th, To;
Chris@82 47 T1 = ri[0];
Chris@82 48 Tl = ii[0];
Chris@82 49 {
Chris@82 50 E T2, T3, T4, T5, T6, T7;
Chris@82 51 T2 = ri[WS(is, 1)];
Chris@82 52 T3 = ri[WS(is, 4)];
Chris@82 53 T4 = T2 + T3;
Chris@82 54 T5 = ri[WS(is, 2)];
Chris@82 55 T6 = ri[WS(is, 3)];
Chris@82 56 T7 = T5 + T6;
Chris@82 57 T8 = T4 + T7;
Chris@82 58 Tt = T5 - T6;
Chris@82 59 Ta = T4 - T7;
Chris@82 60 Ts = T2 - T3;
Chris@82 61 }
Chris@82 62 {
Chris@82 63 E Tc, Td, Tm, Tf, Tg, Tn;
Chris@82 64 Tc = ii[WS(is, 1)];
Chris@82 65 Td = ii[WS(is, 4)];
Chris@82 66 Tm = Tc + Td;
Chris@82 67 Tf = ii[WS(is, 2)];
Chris@82 68 Tg = ii[WS(is, 3)];
Chris@82 69 Tn = Tf + Tg;
Chris@82 70 Te = Tc - Td;
Chris@82 71 Tq = Tm - Tn;
Chris@82 72 Th = Tf - Tg;
Chris@82 73 To = Tm + Tn;
Chris@82 74 }
Chris@82 75 ro[0] = T1 + T8;
Chris@82 76 io[0] = Tl + To;
Chris@82 77 {
Chris@82 78 E Ti, Tk, Tb, Tj, T9;
Chris@82 79 Ti = FMA(KP618033988, Th, Te);
Chris@82 80 Tk = FNMS(KP618033988, Te, Th);
Chris@82 81 T9 = FNMS(KP250000000, T8, T1);
Chris@82 82 Tb = FMA(KP559016994, Ta, T9);
Chris@82 83 Tj = FNMS(KP559016994, Ta, T9);
Chris@82 84 ro[WS(os, 4)] = FNMS(KP951056516, Ti, Tb);
Chris@82 85 ro[WS(os, 3)] = FMA(KP951056516, Tk, Tj);
Chris@82 86 ro[WS(os, 1)] = FMA(KP951056516, Ti, Tb);
Chris@82 87 ro[WS(os, 2)] = FNMS(KP951056516, Tk, Tj);
Chris@82 88 }
Chris@82 89 {
Chris@82 90 E Tu, Tw, Tr, Tv, Tp;
Chris@82 91 Tu = FMA(KP618033988, Tt, Ts);
Chris@82 92 Tw = FNMS(KP618033988, Ts, Tt);
Chris@82 93 Tp = FNMS(KP250000000, To, Tl);
Chris@82 94 Tr = FMA(KP559016994, Tq, Tp);
Chris@82 95 Tv = FNMS(KP559016994, Tq, Tp);
Chris@82 96 io[WS(os, 1)] = FNMS(KP951056516, Tu, Tr);
Chris@82 97 io[WS(os, 3)] = FNMS(KP951056516, Tw, Tv);
Chris@82 98 io[WS(os, 4)] = FMA(KP951056516, Tu, Tr);
Chris@82 99 io[WS(os, 2)] = FMA(KP951056516, Tw, Tv);
Chris@82 100 }
Chris@82 101 }
Chris@82 102 }
Chris@82 103 }
Chris@82 104
Chris@82 105 static const kdft_desc desc = { 5, "n1_5", {14, 0, 18, 0}, &GENUS, 0, 0, 0, 0 };
Chris@82 106
Chris@82 107 void X(codelet_n1_5) (planner *p) {
Chris@82 108 X(kdft_register) (p, n1_5, &desc);
Chris@82 109 }
Chris@82 110
Chris@82 111 #else
Chris@82 112
Chris@82 113 /* Generated by: ../../../genfft/gen_notw.native -compact -variables 4 -pipeline-latency 4 -n 5 -name n1_5 -include dft/scalar/n.h */
Chris@82 114
Chris@82 115 /*
Chris@82 116 * This function contains 32 FP additions, 12 FP multiplications,
Chris@82 117 * (or, 26 additions, 6 multiplications, 6 fused multiply/add),
Chris@82 118 * 21 stack variables, 4 constants, and 20 memory accesses
Chris@82 119 */
Chris@82 120 #include "dft/scalar/n.h"
Chris@82 121
Chris@82 122 static void n1_5(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, INT v, INT ivs, INT ovs)
Chris@82 123 {
Chris@82 124 DK(KP250000000, +0.250000000000000000000000000000000000000000000);
Chris@82 125 DK(KP587785252, +0.587785252292473129168705954639072768597652438);
Chris@82 126 DK(KP951056516, +0.951056516295153572116439333379382143405698634);
Chris@82 127 DK(KP559016994, +0.559016994374947424102293417182819058860154590);
Chris@82 128 {
Chris@82 129 INT i;
Chris@82 130 for (i = v; i > 0; i = i - 1, ri = ri + ivs, ii = ii + ivs, ro = ro + ovs, io = io + ovs, MAKE_VOLATILE_STRIDE(20, is), MAKE_VOLATILE_STRIDE(20, os)) {
Chris@82 131 E T1, To, T8, Tt, T9, Ts, Te, Tp, Th, Tn;
Chris@82 132 T1 = ri[0];
Chris@82 133 To = ii[0];
Chris@82 134 {
Chris@82 135 E T2, T3, T4, T5, T6, T7;
Chris@82 136 T2 = ri[WS(is, 1)];
Chris@82 137 T3 = ri[WS(is, 4)];
Chris@82 138 T4 = T2 + T3;
Chris@82 139 T5 = ri[WS(is, 2)];
Chris@82 140 T6 = ri[WS(is, 3)];
Chris@82 141 T7 = T5 + T6;
Chris@82 142 T8 = T4 + T7;
Chris@82 143 Tt = T5 - T6;
Chris@82 144 T9 = KP559016994 * (T4 - T7);
Chris@82 145 Ts = T2 - T3;
Chris@82 146 }
Chris@82 147 {
Chris@82 148 E Tc, Td, Tl, Tf, Tg, Tm;
Chris@82 149 Tc = ii[WS(is, 1)];
Chris@82 150 Td = ii[WS(is, 4)];
Chris@82 151 Tl = Tc + Td;
Chris@82 152 Tf = ii[WS(is, 2)];
Chris@82 153 Tg = ii[WS(is, 3)];
Chris@82 154 Tm = Tf + Tg;
Chris@82 155 Te = Tc - Td;
Chris@82 156 Tp = Tl + Tm;
Chris@82 157 Th = Tf - Tg;
Chris@82 158 Tn = KP559016994 * (Tl - Tm);
Chris@82 159 }
Chris@82 160 ro[0] = T1 + T8;
Chris@82 161 io[0] = To + Tp;
Chris@82 162 {
Chris@82 163 E Ti, Tk, Tb, Tj, Ta;
Chris@82 164 Ti = FMA(KP951056516, Te, KP587785252 * Th);
Chris@82 165 Tk = FNMS(KP587785252, Te, KP951056516 * Th);
Chris@82 166 Ta = FNMS(KP250000000, T8, T1);
Chris@82 167 Tb = T9 + Ta;
Chris@82 168 Tj = Ta - T9;
Chris@82 169 ro[WS(os, 4)] = Tb - Ti;
Chris@82 170 ro[WS(os, 3)] = Tj + Tk;
Chris@82 171 ro[WS(os, 1)] = Tb + Ti;
Chris@82 172 ro[WS(os, 2)] = Tj - Tk;
Chris@82 173 }
Chris@82 174 {
Chris@82 175 E Tu, Tv, Tr, Tw, Tq;
Chris@82 176 Tu = FMA(KP951056516, Ts, KP587785252 * Tt);
Chris@82 177 Tv = FNMS(KP587785252, Ts, KP951056516 * Tt);
Chris@82 178 Tq = FNMS(KP250000000, Tp, To);
Chris@82 179 Tr = Tn + Tq;
Chris@82 180 Tw = Tq - Tn;
Chris@82 181 io[WS(os, 1)] = Tr - Tu;
Chris@82 182 io[WS(os, 3)] = Tw - Tv;
Chris@82 183 io[WS(os, 4)] = Tu + Tr;
Chris@82 184 io[WS(os, 2)] = Tv + Tw;
Chris@82 185 }
Chris@82 186 }
Chris@82 187 }
Chris@82 188 }
Chris@82 189
Chris@82 190 static const kdft_desc desc = { 5, "n1_5", {26, 6, 6, 0}, &GENUS, 0, 0, 0, 0 };
Chris@82 191
Chris@82 192 void X(codelet_n1_5) (planner *p) {
Chris@82 193 X(kdft_register) (p, n1_5, &desc);
Chris@82 194 }
Chris@82 195
Chris@82 196 #endif