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comparison src/fftw-3.3.3/dft/scalar/codelets/n1_5.c @ 10:37bf6b4a2645
Add FFTW3
| author | Chris Cannam |
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| date | Wed, 20 Mar 2013 15:35:50 +0000 |
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| children |
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| 9:c0fb53affa76 | 10:37bf6b4a2645 |
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| 1 /* | |
| 2 * Copyright (c) 2003, 2007-11 Matteo Frigo | |
| 3 * Copyright (c) 2003, 2007-11 Massachusetts Institute of Technology | |
| 4 * | |
| 5 * This program is free software; you can redistribute it and/or modify | |
| 6 * it under the terms of the GNU General Public License as published by | |
| 7 * the Free Software Foundation; either version 2 of the License, or | |
| 8 * (at your option) any later version. | |
| 9 * | |
| 10 * This program is distributed in the hope that it will be useful, | |
| 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 * GNU General Public License for more details. | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License | |
| 16 * along with this program; if not, write to the Free Software | |
| 17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
| 18 * | |
| 19 */ | |
| 20 | |
| 21 /* This file was automatically generated --- DO NOT EDIT */ | |
| 22 /* Generated on Sun Nov 25 07:35:42 EST 2012 */ | |
| 23 | |
| 24 #include "codelet-dft.h" | |
| 25 | |
| 26 #ifdef HAVE_FMA | |
| 27 | |
| 28 /* Generated by: ../../../genfft/gen_notw.native -fma -reorder-insns -schedule-for-pipeline -compact -variables 4 -pipeline-latency 4 -n 5 -name n1_5 -include n.h */ | |
| 29 | |
| 30 /* | |
| 31 * This function contains 32 FP additions, 18 FP multiplications, | |
| 32 * (or, 14 additions, 0 multiplications, 18 fused multiply/add), | |
| 33 * 37 stack variables, 4 constants, and 20 memory accesses | |
| 34 */ | |
| 35 #include "n.h" | |
| 36 | |
| 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) | |
| 38 { | |
| 39 DK(KP951056516, +0.951056516295153572116439333379382143405698634); | |
| 40 DK(KP559016994, +0.559016994374947424102293417182819058860154590); | |
| 41 DK(KP250000000, +0.250000000000000000000000000000000000000000000); | |
| 42 DK(KP618033988, +0.618033988749894848204586834365638117720309180); | |
| 43 { | |
| 44 INT i; | |
| 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)) { | |
| 46 E Tq, Ti, Tk, Tu, Tw, Tp, Tb, Tj, Tr, Tv; | |
| 47 { | |
| 48 E T1, Tl, Ts, Tt, T8, Ta, Te, Tm, Tn, Th, To, T9; | |
| 49 T1 = ri[0]; | |
| 50 Tl = ii[0]; | |
| 51 { | |
| 52 E T2, T3, T5, T6; | |
| 53 T2 = ri[WS(is, 1)]; | |
| 54 T3 = ri[WS(is, 4)]; | |
| 55 T5 = ri[WS(is, 2)]; | |
| 56 T6 = ri[WS(is, 3)]; | |
| 57 { | |
| 58 E Tc, T4, T7, Td, Tf, Tg; | |
| 59 Tc = ii[WS(is, 1)]; | |
| 60 Ts = T2 - T3; | |
| 61 T4 = T2 + T3; | |
| 62 Tt = T5 - T6; | |
| 63 T7 = T5 + T6; | |
| 64 Td = ii[WS(is, 4)]; | |
| 65 Tf = ii[WS(is, 2)]; | |
| 66 Tg = ii[WS(is, 3)]; | |
| 67 T8 = T4 + T7; | |
| 68 Ta = T4 - T7; | |
| 69 Te = Tc - Td; | |
| 70 Tm = Tc + Td; | |
| 71 Tn = Tf + Tg; | |
| 72 Th = Tf - Tg; | |
| 73 } | |
| 74 } | |
| 75 ro[0] = T1 + T8; | |
| 76 To = Tm + Tn; | |
| 77 Tq = Tm - Tn; | |
| 78 Ti = FMA(KP618033988, Th, Te); | |
| 79 Tk = FNMS(KP618033988, Te, Th); | |
| 80 io[0] = Tl + To; | |
| 81 T9 = FNMS(KP250000000, T8, T1); | |
| 82 Tu = FMA(KP618033988, Tt, Ts); | |
| 83 Tw = FNMS(KP618033988, Ts, Tt); | |
| 84 Tp = FNMS(KP250000000, To, Tl); | |
| 85 Tb = FMA(KP559016994, Ta, T9); | |
| 86 Tj = FNMS(KP559016994, Ta, T9); | |
| 87 } | |
| 88 Tr = FMA(KP559016994, Tq, Tp); | |
| 89 Tv = FNMS(KP559016994, Tq, Tp); | |
| 90 ro[WS(os, 2)] = FNMS(KP951056516, Tk, Tj); | |
| 91 ro[WS(os, 3)] = FMA(KP951056516, Tk, Tj); | |
| 92 ro[WS(os, 1)] = FMA(KP951056516, Ti, Tb); | |
| 93 ro[WS(os, 4)] = FNMS(KP951056516, Ti, Tb); | |
| 94 io[WS(os, 2)] = FMA(KP951056516, Tw, Tv); | |
| 95 io[WS(os, 3)] = FNMS(KP951056516, Tw, Tv); | |
| 96 io[WS(os, 4)] = FMA(KP951056516, Tu, Tr); | |
| 97 io[WS(os, 1)] = FNMS(KP951056516, Tu, Tr); | |
| 98 } | |
| 99 } | |
| 100 } | |
| 101 | |
| 102 static const kdft_desc desc = { 5, "n1_5", {14, 0, 18, 0}, &GENUS, 0, 0, 0, 0 }; | |
| 103 | |
| 104 void X(codelet_n1_5) (planner *p) { | |
| 105 X(kdft_register) (p, n1_5, &desc); | |
| 106 } | |
| 107 | |
| 108 #else /* HAVE_FMA */ | |
| 109 | |
| 110 /* Generated by: ../../../genfft/gen_notw.native -compact -variables 4 -pipeline-latency 4 -n 5 -name n1_5 -include n.h */ | |
| 111 | |
| 112 /* | |
| 113 * This function contains 32 FP additions, 12 FP multiplications, | |
| 114 * (or, 26 additions, 6 multiplications, 6 fused multiply/add), | |
| 115 * 21 stack variables, 4 constants, and 20 memory accesses | |
| 116 */ | |
| 117 #include "n.h" | |
| 118 | |
| 119 static void n1_5(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, INT v, INT ivs, INT ovs) | |
| 120 { | |
| 121 DK(KP250000000, +0.250000000000000000000000000000000000000000000); | |
| 122 DK(KP587785252, +0.587785252292473129168705954639072768597652438); | |
| 123 DK(KP951056516, +0.951056516295153572116439333379382143405698634); | |
| 124 DK(KP559016994, +0.559016994374947424102293417182819058860154590); | |
| 125 { | |
| 126 INT i; | |
| 127 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)) { | |
| 128 E T1, To, T8, Tt, T9, Ts, Te, Tp, Th, Tn; | |
| 129 T1 = ri[0]; | |
| 130 To = ii[0]; | |
| 131 { | |
| 132 E T2, T3, T4, T5, T6, T7; | |
| 133 T2 = ri[WS(is, 1)]; | |
| 134 T3 = ri[WS(is, 4)]; | |
| 135 T4 = T2 + T3; | |
| 136 T5 = ri[WS(is, 2)]; | |
| 137 T6 = ri[WS(is, 3)]; | |
| 138 T7 = T5 + T6; | |
| 139 T8 = T4 + T7; | |
| 140 Tt = T5 - T6; | |
| 141 T9 = KP559016994 * (T4 - T7); | |
| 142 Ts = T2 - T3; | |
| 143 } | |
| 144 { | |
| 145 E Tc, Td, Tl, Tf, Tg, Tm; | |
| 146 Tc = ii[WS(is, 1)]; | |
| 147 Td = ii[WS(is, 4)]; | |
| 148 Tl = Tc + Td; | |
| 149 Tf = ii[WS(is, 2)]; | |
| 150 Tg = ii[WS(is, 3)]; | |
| 151 Tm = Tf + Tg; | |
| 152 Te = Tc - Td; | |
| 153 Tp = Tl + Tm; | |
| 154 Th = Tf - Tg; | |
| 155 Tn = KP559016994 * (Tl - Tm); | |
| 156 } | |
| 157 ro[0] = T1 + T8; | |
| 158 io[0] = To + Tp; | |
| 159 { | |
| 160 E Ti, Tk, Tb, Tj, Ta; | |
| 161 Ti = FMA(KP951056516, Te, KP587785252 * Th); | |
| 162 Tk = FNMS(KP587785252, Te, KP951056516 * Th); | |
| 163 Ta = FNMS(KP250000000, T8, T1); | |
| 164 Tb = T9 + Ta; | |
| 165 Tj = Ta - T9; | |
| 166 ro[WS(os, 4)] = Tb - Ti; | |
| 167 ro[WS(os, 3)] = Tj + Tk; | |
| 168 ro[WS(os, 1)] = Tb + Ti; | |
| 169 ro[WS(os, 2)] = Tj - Tk; | |
| 170 } | |
| 171 { | |
| 172 E Tu, Tv, Tr, Tw, Tq; | |
| 173 Tu = FMA(KP951056516, Ts, KP587785252 * Tt); | |
| 174 Tv = FNMS(KP587785252, Ts, KP951056516 * Tt); | |
| 175 Tq = FNMS(KP250000000, Tp, To); | |
| 176 Tr = Tn + Tq; | |
| 177 Tw = Tq - Tn; | |
| 178 io[WS(os, 1)] = Tr - Tu; | |
| 179 io[WS(os, 3)] = Tw - Tv; | |
| 180 io[WS(os, 4)] = Tu + Tr; | |
| 181 io[WS(os, 2)] = Tv + Tw; | |
| 182 } | |
| 183 } | |
| 184 } | |
| 185 } | |
| 186 | |
| 187 static const kdft_desc desc = { 5, "n1_5", {26, 6, 6, 0}, &GENUS, 0, 0, 0, 0 }; | |
| 188 | |
| 189 void X(codelet_n1_5) (planner *p) { | |
| 190 X(kdft_register) (p, n1_5, &desc); | |
| 191 } | |
| 192 | |
| 193 #endif /* HAVE_FMA */ |