837 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
		
		
			
		
	
	
			837 lines
		
	
	
		
			22 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
|   | /*
 | ||
|  |  * Copyright (c) 2003, 2007-14 Matteo Frigo | ||
|  |  * Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology | ||
|  |  * | ||
|  |  * This program is free software; you can redistribute it and/or modify | ||
|  |  * it under the terms of the GNU General Public License as published by | ||
|  |  * the Free Software Foundation; either version 2 of the License, or | ||
|  |  * (at your option) any later version. | ||
|  |  * | ||
|  |  * This program 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 General Public License for more details. | ||
|  |  * | ||
|  |  * You should have received a copy of the GNU General Public License | ||
|  |  * along with this program; if not, write to the Free Software | ||
|  |  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA | ||
|  |  * | ||
|  |  */ | ||
|  | 
 | ||
|  | /* This file was automatically generated --- DO NOT EDIT */ | ||
|  | /* Generated on Tue Sep 14 10:44:32 EDT 2021 */ | ||
|  | 
 | ||
|  | #include "dft/codelet-dft.h"
 | ||
|  | 
 | ||
|  | #if defined(ARCH_PREFERS_FMA) || defined(ISA_EXTENSION_PREFERS_FMA)
 | ||
|  | 
 | ||
|  | /* Generated by: ../../../genfft/gen_twiddle.native -fma -compact -variables 4 -pipeline-latency 4 -twiddle-log3 -precompute-twiddles -n 16 -name t2_16 -include dft/scalar/t.h */ | ||
|  | 
 | ||
|  | /*
 | ||
|  |  * This function contains 196 FP additions, 134 FP multiplications, | ||
|  |  * (or, 104 additions, 42 multiplications, 92 fused multiply/add), | ||
|  |  * 90 stack variables, 3 constants, and 64 memory accesses | ||
|  |  */ | ||
|  | #include "dft/scalar/t.h"
 | ||
|  | 
 | ||
|  | static void t2_16(R *ri, R *ii, const R *W, stride rs, INT mb, INT me, INT ms) | ||
|  | { | ||
|  |      DK(KP923879532, +0.923879532511286756128183189396788286822416626); | ||
|  |      DK(KP414213562, +0.414213562373095048801688724209698078569671875); | ||
|  |      DK(KP707106781, +0.707106781186547524400844362104849039284835938); | ||
|  |      { | ||
|  | 	  INT m; | ||
|  | 	  for (m = mb, W = W + (mb * 8); m < me; m = m + 1, ri = ri + ms, ii = ii + ms, W = W + 8, MAKE_VOLATILE_STRIDE(32, rs)) { | ||
|  | 	       E T2, Tf, TM, TO, T3, T6, T5, Th, Tz, Ti, T7, TZ, TT, Tq, TW; | ||
|  | 	       E Tb, Tu, TP, TI, TF, TC, T1z, T1O, T1D, T1L, Tm, T1f, T1p, T1j, T1m; | ||
|  | 	       { | ||
|  | 		    E TN, TS, T4, Tp, Ta, Tt, Tl, Tg; | ||
|  | 		    T2 = W[0]; | ||
|  | 		    Tf = W[2]; | ||
|  | 		    Tg = T2 * Tf; | ||
|  | 		    TM = W[6]; | ||
|  | 		    TN = T2 * TM; | ||
|  | 		    TO = W[7]; | ||
|  | 		    TS = T2 * TO; | ||
|  | 		    T3 = W[4]; | ||
|  | 		    T4 = T2 * T3; | ||
|  | 		    Tp = Tf * T3; | ||
|  | 		    T6 = W[5]; | ||
|  | 		    Ta = T2 * T6; | ||
|  | 		    Tt = Tf * T6; | ||
|  | 		    T5 = W[1]; | ||
|  | 		    Th = W[3]; | ||
|  | 		    Tl = T2 * Th; | ||
|  | 		    Tz = FMA(T5, Th, Tg); | ||
|  | 		    Ti = FNMS(T5, Th, Tg); | ||
|  | 		    T7 = FMA(T5, T6, T4); | ||
|  | 		    TZ = FNMS(Th, T3, Tt); | ||
|  | 		    TT = FNMS(T5, TM, TS); | ||
|  | 		    Tq = FNMS(Th, T6, Tp); | ||
|  | 		    TW = FMA(Th, T6, Tp); | ||
|  | 		    Tb = FNMS(T5, T3, Ta); | ||
|  | 		    Tu = FMA(Th, T3, Tt); | ||
|  | 		    TP = FMA(T5, TO, TN); | ||
|  | 		    TI = FMA(T5, T3, Ta); | ||
|  | 		    TF = FNMS(T5, T6, T4); | ||
|  | 		    { | ||
|  | 			 E T1y, T1C, T1e, T1i; | ||
|  | 			 T1y = Tz * T3; | ||
|  | 			 T1C = Tz * T6; | ||
|  | 			 TC = FNMS(T5, Tf, Tl); | ||
|  | 			 T1z = FMA(TC, T6, T1y); | ||
|  | 			 T1O = FMA(TC, T3, T1C); | ||
|  | 			 T1D = FNMS(TC, T3, T1C); | ||
|  | 			 T1L = FNMS(TC, T6, T1y); | ||
|  | 			 T1e = Ti * T3; | ||
|  | 			 T1i = Ti * T6; | ||
|  | 			 Tm = FMA(T5, Tf, Tl); | ||
|  | 			 T1f = FMA(Tm, T6, T1e); | ||
|  | 			 T1p = FMA(Tm, T3, T1i); | ||
|  | 			 T1j = FNMS(Tm, T3, T1i); | ||
|  | 			 T1m = FNMS(Tm, T6, T1e); | ||
|  | 		    } | ||
|  | 	       } | ||
|  | 	       { | ||
|  | 		    E Te, T1U, T3A, T3L, T1G, T2D, T2A, T3h, T1R, T2B, T2I, T3i, Tx, T3M, T1Z; | ||
|  | 		    E T3w, TL, T26, T25, T37, T1d, T2o, T2l, T3c, T1s, T2m, T2t, T3d, T12, T28; | ||
|  | 		    E T2d, T38; | ||
|  | 		    { | ||
|  | 			 E T1, T3z, T8, T9, Tc, T3x, Td, T3y; | ||
|  | 			 T1 = ri[0]; | ||
|  | 			 T3z = ii[0]; | ||
|  | 			 T8 = ri[WS(rs, 8)]; | ||
|  | 			 T9 = T7 * T8; | ||
|  | 			 Tc = ii[WS(rs, 8)]; | ||
|  | 			 T3x = T7 * Tc; | ||
|  | 			 Td = FMA(Tb, Tc, T9); | ||
|  | 			 Te = T1 + Td; | ||
|  | 			 T1U = T1 - Td; | ||
|  | 			 T3y = FNMS(Tb, T8, T3x); | ||
|  | 			 T3A = T3y + T3z; | ||
|  | 			 T3L = T3z - T3y; | ||
|  | 		    } | ||
|  | 		    { | ||
|  | 			 E T1u, T1v, T1w, T2w, T1A, T1B, T1E, T2y; | ||
|  | 			 T1u = ri[WS(rs, 15)]; | ||
|  | 			 T1v = TM * T1u; | ||
|  | 			 T1w = ii[WS(rs, 15)]; | ||
|  | 			 T2w = TM * T1w; | ||
|  | 			 T1A = ri[WS(rs, 7)]; | ||
|  | 			 T1B = T1z * T1A; | ||
|  | 			 T1E = ii[WS(rs, 7)]; | ||
|  | 			 T2y = T1z * T1E; | ||
|  | 			 { | ||
|  | 			      E T1x, T1F, T2x, T2z; | ||
|  | 			      T1x = FMA(TO, T1w, T1v); | ||
|  | 			      T1F = FMA(T1D, T1E, T1B); | ||
|  | 			      T1G = T1x + T1F; | ||
|  | 			      T2D = T1x - T1F; | ||
|  | 			      T2x = FNMS(TO, T1u, T2w); | ||
|  | 			      T2z = FNMS(T1D, T1A, T2y); | ||
|  | 			      T2A = T2x - T2z; | ||
|  | 			      T3h = T2x + T2z; | ||
|  | 			 } | ||
|  | 		    } | ||
|  | 		    { | ||
|  | 			 E T1H, T1I, T1J, T2E, T1M, T1N, T1P, T2G; | ||
|  | 			 T1H = ri[WS(rs, 3)]; | ||
|  | 			 T1I = Tf * T1H; | ||
|  | 			 T1J = ii[WS(rs, 3)]; | ||
|  | 			 T2E = Tf * T1J; | ||
|  | 			 T1M = ri[WS(rs, 11)]; | ||
|  | 			 T1N = T1L * T1M; | ||
|  | 			 T1P = ii[WS(rs, 11)]; | ||
|  | 			 T2G = T1L * T1P; | ||
|  | 			 { | ||
|  | 			      E T1K, T1Q, T2F, T2H; | ||
|  | 			      T1K = FMA(Th, T1J, T1I); | ||
|  | 			      T1Q = FMA(T1O, T1P, T1N); | ||
|  | 			      T1R = T1K + T1Q; | ||
|  | 			      T2B = T1K - T1Q; | ||
|  | 			      T2F = FNMS(Th, T1H, T2E); | ||
|  | 			      T2H = FNMS(T1O, T1M, T2G); | ||
|  | 			      T2I = T2F - T2H; | ||
|  | 			      T3i = T2F + T2H; | ||
|  | 			 } | ||
|  | 		    } | ||
|  | 		    { | ||
|  | 			 E Tj, Tk, Tn, T1V, Tr, Ts, Tv, T1X; | ||
|  | 			 Tj = ri[WS(rs, 4)]; | ||
|  | 			 Tk = Ti * Tj; | ||
|  | 			 Tn = ii[WS(rs, 4)]; | ||
|  | 			 T1V = Ti * Tn; | ||
|  | 			 Tr = ri[WS(rs, 12)]; | ||
|  | 			 Ts = Tq * Tr; | ||
|  | 			 Tv = ii[WS(rs, 12)]; | ||
|  | 			 T1X = Tq * Tv; | ||
|  | 			 { | ||
|  | 			      E To, Tw, T1W, T1Y; | ||
|  | 			      To = FMA(Tm, Tn, Tk); | ||
|  | 			      Tw = FMA(Tu, Tv, Ts); | ||
|  | 			      Tx = To + Tw; | ||
|  | 			      T3M = To - Tw; | ||
|  | 			      T1W = FNMS(Tm, Tj, T1V); | ||
|  | 			      T1Y = FNMS(Tu, Tr, T1X); | ||
|  | 			      T1Z = T1W - T1Y; | ||
|  | 			      T3w = T1W + T1Y; | ||
|  | 			 } | ||
|  | 		    } | ||
|  | 		    { | ||
|  | 			 E TA, TB, TD, T21, TG, TH, TJ, T23; | ||
|  | 			 TA = ri[WS(rs, 2)]; | ||
|  | 			 TB = Tz * TA; | ||
|  | 			 TD = ii[WS(rs, 2)]; | ||
|  | 			 T21 = Tz * TD; | ||
|  | 			 TG = ri[WS(rs, 10)]; | ||
|  | 			 TH = TF * TG; | ||
|  | 			 TJ = ii[WS(rs, 10)]; | ||
|  | 			 T23 = TF * TJ; | ||
|  | 			 { | ||
|  | 			      E TE, TK, T22, T24; | ||
|  | 			      TE = FMA(TC, TD, TB); | ||
|  | 			      TK = FMA(TI, TJ, TH); | ||
|  | 			      TL = TE + TK; | ||
|  | 			      T26 = TE - TK; | ||
|  | 			      T22 = FNMS(TC, TA, T21); | ||
|  | 			      T24 = FNMS(TI, TG, T23); | ||
|  | 			      T25 = T22 - T24; | ||
|  | 			      T37 = T22 + T24; | ||
|  | 			 } | ||
|  | 		    } | ||
|  | 		    { | ||
|  | 			 E T15, T16, T17, T2h, T19, T1a, T1b, T2j; | ||
|  | 			 T15 = ri[WS(rs, 1)]; | ||
|  | 			 T16 = T2 * T15; | ||
|  | 			 T17 = ii[WS(rs, 1)]; | ||
|  | 			 T2h = T2 * T17; | ||
|  | 			 T19 = ri[WS(rs, 9)]; | ||
|  | 			 T1a = T3 * T19; | ||
|  | 			 T1b = ii[WS(rs, 9)]; | ||
|  | 			 T2j = T3 * T1b; | ||
|  | 			 { | ||
|  | 			      E T18, T1c, T2i, T2k; | ||
|  | 			      T18 = FMA(T5, T17, T16); | ||
|  | 			      T1c = FMA(T6, T1b, T1a); | ||
|  | 			      T1d = T18 + T1c; | ||
|  | 			      T2o = T18 - T1c; | ||
|  | 			      T2i = FNMS(T5, T15, T2h); | ||
|  | 			      T2k = FNMS(T6, T19, T2j); | ||
|  | 			      T2l = T2i - T2k; | ||
|  | 			      T3c = T2i + T2k; | ||
|  | 			 } | ||
|  | 		    } | ||
|  | 		    { | ||
|  | 			 E T1g, T1h, T1k, T2p, T1n, T1o, T1q, T2r; | ||
|  | 			 T1g = ri[WS(rs, 5)]; | ||
|  | 			 T1h = T1f * T1g; | ||
|  | 			 T1k = ii[WS(rs, 5)]; | ||
|  | 			 T2p = T1f * T1k; | ||
|  | 			 T1n = ri[WS(rs, 13)]; | ||
|  | 			 T1o = T1m * T1n; | ||
|  | 			 T1q = ii[WS(rs, 13)]; | ||
|  | 			 T2r = T1m * T1q; | ||
|  | 			 { | ||
|  | 			      E T1l, T1r, T2q, T2s; | ||
|  | 			      T1l = FMA(T1j, T1k, T1h); | ||
|  | 			      T1r = FMA(T1p, T1q, T1o); | ||
|  | 			      T1s = T1l + T1r; | ||
|  | 			      T2m = T1l - T1r; | ||
|  | 			      T2q = FNMS(T1j, T1g, T2p); | ||
|  | 			      T2s = FNMS(T1p, T1n, T2r); | ||
|  | 			      T2t = T2q - T2s; | ||
|  | 			      T3d = T2q + T2s; | ||
|  | 			 } | ||
|  | 		    } | ||
|  | 		    { | ||
|  | 			 E TQ, TR, TU, T29, TX, TY, T10, T2b; | ||
|  | 			 TQ = ri[WS(rs, 14)]; | ||
|  | 			 TR = TP * TQ; | ||
|  | 			 TU = ii[WS(rs, 14)]; | ||
|  | 			 T29 = TP * TU; | ||
|  | 			 TX = ri[WS(rs, 6)]; | ||
|  | 			 TY = TW * TX; | ||
|  | 			 T10 = ii[WS(rs, 6)]; | ||
|  | 			 T2b = TW * T10; | ||
|  | 			 { | ||
|  | 			      E TV, T11, T2a, T2c; | ||
|  | 			      TV = FMA(TT, TU, TR); | ||
|  | 			      T11 = FMA(TZ, T10, TY); | ||
|  | 			      T12 = TV + T11; | ||
|  | 			      T28 = TV - T11; | ||
|  | 			      T2a = FNMS(TT, TQ, T29); | ||
|  | 			      T2c = FNMS(TZ, TX, T2b); | ||
|  | 			      T2d = T2a - T2c; | ||
|  | 			      T38 = T2a + T2c; | ||
|  | 			 } | ||
|  | 		    } | ||
|  | 		    { | ||
|  | 			 E T14, T3q, T3C, T3E, T1T, T3D, T3t, T3u; | ||
|  | 			 { | ||
|  | 			      E Ty, T13, T3v, T3B; | ||
|  | 			      Ty = Te + Tx; | ||
|  | 			      T13 = TL + T12; | ||
|  | 			      T14 = Ty + T13; | ||
|  | 			      T3q = Ty - T13; | ||
|  | 			      T3v = T37 + T38; | ||
|  | 			      T3B = T3w + T3A; | ||
|  | 			      T3C = T3v + T3B; | ||
|  | 			      T3E = T3B - T3v; | ||
|  | 			 } | ||
|  | 			 { | ||
|  | 			      E T1t, T1S, T3r, T3s; | ||
|  | 			      T1t = T1d + T1s; | ||
|  | 			      T1S = T1G + T1R; | ||
|  | 			      T1T = T1t + T1S; | ||
|  | 			      T3D = T1S - T1t; | ||
|  | 			      T3r = T3c + T3d; | ||
|  | 			      T3s = T3h + T3i; | ||
|  | 			      T3t = T3r - T3s; | ||
|  | 			      T3u = T3r + T3s; | ||
|  | 			 } | ||
|  | 			 ri[WS(rs, 8)] = T14 - T1T; | ||
|  | 			 ii[WS(rs, 8)] = T3C - T3u; | ||
|  | 			 ri[0] = T14 + T1T; | ||
|  | 			 ii[0] = T3u + T3C; | ||
|  | 			 ri[WS(rs, 12)] = T3q - T3t; | ||
|  | 			 ii[WS(rs, 12)] = T3E - T3D; | ||
|  | 			 ri[WS(rs, 4)] = T3q + T3t; | ||
|  | 			 ii[WS(rs, 4)] = T3D + T3E; | ||
|  | 		    } | ||
|  | 		    { | ||
|  | 			 E T3a, T3m, T3H, T3J, T3f, T3n, T3k, T3o; | ||
|  | 			 { | ||
|  | 			      E T36, T39, T3F, T3G; | ||
|  | 			      T36 = Te - Tx; | ||
|  | 			      T39 = T37 - T38; | ||
|  | 			      T3a = T36 + T39; | ||
|  | 			      T3m = T36 - T39; | ||
|  | 			      T3F = T12 - TL; | ||
|  | 			      T3G = T3A - T3w; | ||
|  | 			      T3H = T3F + T3G; | ||
|  | 			      T3J = T3G - T3F; | ||
|  | 			 } | ||
|  | 			 { | ||
|  | 			      E T3b, T3e, T3g, T3j; | ||
|  | 			      T3b = T1d - T1s; | ||
|  | 			      T3e = T3c - T3d; | ||
|  | 			      T3f = T3b + T3e; | ||
|  | 			      T3n = T3e - T3b; | ||
|  | 			      T3g = T1G - T1R; | ||
|  | 			      T3j = T3h - T3i; | ||
|  | 			      T3k = T3g - T3j; | ||
|  | 			      T3o = T3g + T3j; | ||
|  | 			 } | ||
|  | 			 { | ||
|  | 			      E T3l, T3I, T3p, T3K; | ||
|  | 			      T3l = T3f + T3k; | ||
|  | 			      ri[WS(rs, 10)] = FNMS(KP707106781, T3l, T3a); | ||
|  | 			      ri[WS(rs, 2)] = FMA(KP707106781, T3l, T3a); | ||
|  | 			      T3I = T3n + T3o; | ||
|  | 			      ii[WS(rs, 2)] = FMA(KP707106781, T3I, T3H); | ||
|  | 			      ii[WS(rs, 10)] = FNMS(KP707106781, T3I, T3H); | ||
|  | 			      T3p = T3n - T3o; | ||
|  | 			      ri[WS(rs, 14)] = FNMS(KP707106781, T3p, T3m); | ||
|  | 			      ri[WS(rs, 6)] = FMA(KP707106781, T3p, T3m); | ||
|  | 			      T3K = T3k - T3f; | ||
|  | 			      ii[WS(rs, 6)] = FMA(KP707106781, T3K, T3J); | ||
|  | 			      ii[WS(rs, 14)] = FNMS(KP707106781, T3K, T3J); | ||
|  | 			 } | ||
|  | 		    } | ||
|  | 		    { | ||
|  | 			 E T20, T3N, T3T, T2Q, T2f, T3O, T30, T34, T2T, T3U, T2v, T2N, T2X, T33, T2K; | ||
|  | 			 E T2O; | ||
|  | 			 { | ||
|  | 			      E T27, T2e, T2n, T2u; | ||
|  | 			      T20 = T1U - T1Z; | ||
|  | 			      T3N = T3L - T3M; | ||
|  | 			      T3T = T3M + T3L; | ||
|  | 			      T2Q = T1U + T1Z; | ||
|  | 			      T27 = T25 - T26; | ||
|  | 			      T2e = T28 + T2d; | ||
|  | 			      T2f = T27 - T2e; | ||
|  | 			      T3O = T27 + T2e; | ||
|  | 			      { | ||
|  | 				   E T2Y, T2Z, T2R, T2S; | ||
|  | 				   T2Y = T2D + T2I; | ||
|  | 				   T2Z = T2A - T2B; | ||
|  | 				   T30 = FNMS(KP414213562, T2Z, T2Y); | ||
|  | 				   T34 = FMA(KP414213562, T2Y, T2Z); | ||
|  | 				   T2R = T26 + T25; | ||
|  | 				   T2S = T28 - T2d; | ||
|  | 				   T2T = T2R + T2S; | ||
|  | 				   T3U = T2S - T2R; | ||
|  | 			      } | ||
|  | 			      T2n = T2l + T2m; | ||
|  | 			      T2u = T2o - T2t; | ||
|  | 			      T2v = FMA(KP414213562, T2u, T2n); | ||
|  | 			      T2N = FNMS(KP414213562, T2n, T2u); | ||
|  | 			      { | ||
|  | 				   E T2V, T2W, T2C, T2J; | ||
|  | 				   T2V = T2o + T2t; | ||
|  | 				   T2W = T2l - T2m; | ||
|  | 				   T2X = FMA(KP414213562, T2W, T2V); | ||
|  | 				   T33 = FNMS(KP414213562, T2V, T2W); | ||
|  | 				   T2C = T2A + T2B; | ||
|  | 				   T2J = T2D - T2I; | ||
|  | 				   T2K = FNMS(KP414213562, T2J, T2C); | ||
|  | 				   T2O = FMA(KP414213562, T2C, T2J); | ||
|  | 			      } | ||
|  | 			 } | ||
|  | 			 { | ||
|  | 			      E T2g, T2L, T3V, T3W; | ||
|  | 			      T2g = FMA(KP707106781, T2f, T20); | ||
|  | 			      T2L = T2v - T2K; | ||
|  | 			      ri[WS(rs, 11)] = FNMS(KP923879532, T2L, T2g); | ||
|  | 			      ri[WS(rs, 3)] = FMA(KP923879532, T2L, T2g); | ||
|  | 			      T3V = FMA(KP707106781, T3U, T3T); | ||
|  | 			      T3W = T2O - T2N; | ||
|  | 			      ii[WS(rs, 3)] = FMA(KP923879532, T3W, T3V); | ||
|  | 			      ii[WS(rs, 11)] = FNMS(KP923879532, T3W, T3V); | ||
|  | 			 } | ||
|  | 			 { | ||
|  | 			      E T2M, T2P, T3X, T3Y; | ||
|  | 			      T2M = FNMS(KP707106781, T2f, T20); | ||
|  | 			      T2P = T2N + T2O; | ||
|  | 			      ri[WS(rs, 7)] = FNMS(KP923879532, T2P, T2M); | ||
|  | 			      ri[WS(rs, 15)] = FMA(KP923879532, T2P, T2M); | ||
|  | 			      T3X = FNMS(KP707106781, T3U, T3T); | ||
|  | 			      T3Y = T2v + T2K; | ||
|  | 			      ii[WS(rs, 7)] = FNMS(KP923879532, T3Y, T3X); | ||
|  | 			      ii[WS(rs, 15)] = FMA(KP923879532, T3Y, T3X); | ||
|  | 			 } | ||
|  | 			 { | ||
|  | 			      E T2U, T31, T3P, T3Q; | ||
|  | 			      T2U = FMA(KP707106781, T2T, T2Q); | ||
|  | 			      T31 = T2X + T30; | ||
|  | 			      ri[WS(rs, 9)] = FNMS(KP923879532, T31, T2U); | ||
|  | 			      ri[WS(rs, 1)] = FMA(KP923879532, T31, T2U); | ||
|  | 			      T3P = FMA(KP707106781, T3O, T3N); | ||
|  | 			      T3Q = T33 + T34; | ||
|  | 			      ii[WS(rs, 1)] = FMA(KP923879532, T3Q, T3P); | ||
|  | 			      ii[WS(rs, 9)] = FNMS(KP923879532, T3Q, T3P); | ||
|  | 			 } | ||
|  | 			 { | ||
|  | 			      E T32, T35, T3R, T3S; | ||
|  | 			      T32 = FNMS(KP707106781, T2T, T2Q); | ||
|  | 			      T35 = T33 - T34; | ||
|  | 			      ri[WS(rs, 13)] = FNMS(KP923879532, T35, T32); | ||
|  | 			      ri[WS(rs, 5)] = FMA(KP923879532, T35, T32); | ||
|  | 			      T3R = FNMS(KP707106781, T3O, T3N); | ||
|  | 			      T3S = T30 - T2X; | ||
|  | 			      ii[WS(rs, 5)] = FMA(KP923879532, T3S, T3R); | ||
|  | 			      ii[WS(rs, 13)] = FNMS(KP923879532, T3S, T3R); | ||
|  | 			 } | ||
|  | 		    } | ||
|  | 	       } | ||
|  | 	  } | ||
|  |      } | ||
|  | } | ||
|  | 
 | ||
|  | static const tw_instr twinstr[] = { | ||
|  |      { TW_CEXP, 0, 1 }, | ||
|  |      { TW_CEXP, 0, 3 }, | ||
|  |      { TW_CEXP, 0, 9 }, | ||
|  |      { TW_CEXP, 0, 15 }, | ||
|  |      { TW_NEXT, 1, 0 } | ||
|  | }; | ||
|  | 
 | ||
|  | static const ct_desc desc = { 16, "t2_16", twinstr, &GENUS, { 104, 42, 92, 0 }, 0, 0, 0 }; | ||
|  | 
 | ||
|  | void X(codelet_t2_16) (planner *p) { | ||
|  |      X(kdft_dit_register) (p, t2_16, &desc); | ||
|  | } | ||
|  | #else
 | ||
|  | 
 | ||
|  | /* Generated by: ../../../genfft/gen_twiddle.native -compact -variables 4 -pipeline-latency 4 -twiddle-log3 -precompute-twiddles -n 16 -name t2_16 -include dft/scalar/t.h */ | ||
|  | 
 | ||
|  | /*
 | ||
|  |  * This function contains 196 FP additions, 108 FP multiplications, | ||
|  |  * (or, 156 additions, 68 multiplications, 40 fused multiply/add), | ||
|  |  * 82 stack variables, 3 constants, and 64 memory accesses | ||
|  |  */ | ||
|  | #include "dft/scalar/t.h"
 | ||
|  | 
 | ||
|  | static void t2_16(R *ri, R *ii, const R *W, stride rs, INT mb, INT me, INT ms) | ||
|  | { | ||
|  |      DK(KP382683432, +0.382683432365089771728459984030398866761344562); | ||
|  |      DK(KP923879532, +0.923879532511286756128183189396788286822416626); | ||
|  |      DK(KP707106781, +0.707106781186547524400844362104849039284835938); | ||
|  |      { | ||
|  | 	  INT m; | ||
|  | 	  for (m = mb, W = W + (mb * 8); m < me; m = m + 1, ri = ri + ms, ii = ii + ms, W = W + 8, MAKE_VOLATILE_STRIDE(32, rs)) { | ||
|  | 	       E T2, T5, Tg, Ti, Tk, To, TE, TC, T6, T3, T8, TW, TJ, Tt, TU; | ||
|  | 	       E Tc, Tx, TH, TN, TO, TP, TR, T1f, T1k, T1b, T1i, T1y, T1H, T1u, T1F; | ||
|  | 	       { | ||
|  | 		    E T7, Tv, Ta, Ts, T4, Tw, Tb, Tr; | ||
|  | 		    { | ||
|  | 			 E Th, Tn, Tj, Tm; | ||
|  | 			 T2 = W[0]; | ||
|  | 			 T5 = W[1]; | ||
|  | 			 Tg = W[2]; | ||
|  | 			 Ti = W[3]; | ||
|  | 			 Th = T2 * Tg; | ||
|  | 			 Tn = T5 * Tg; | ||
|  | 			 Tj = T5 * Ti; | ||
|  | 			 Tm = T2 * Ti; | ||
|  | 			 Tk = Th - Tj; | ||
|  | 			 To = Tm + Tn; | ||
|  | 			 TE = Tm - Tn; | ||
|  | 			 TC = Th + Tj; | ||
|  | 			 T6 = W[5]; | ||
|  | 			 T7 = T5 * T6; | ||
|  | 			 Tv = Tg * T6; | ||
|  | 			 Ta = T2 * T6; | ||
|  | 			 Ts = Ti * T6; | ||
|  | 			 T3 = W[4]; | ||
|  | 			 T4 = T2 * T3; | ||
|  | 			 Tw = Ti * T3; | ||
|  | 			 Tb = T5 * T3; | ||
|  | 			 Tr = Tg * T3; | ||
|  | 		    } | ||
|  | 		    T8 = T4 + T7; | ||
|  | 		    TW = Tv - Tw; | ||
|  | 		    TJ = Ta + Tb; | ||
|  | 		    Tt = Tr - Ts; | ||
|  | 		    TU = Tr + Ts; | ||
|  | 		    Tc = Ta - Tb; | ||
|  | 		    Tx = Tv + Tw; | ||
|  | 		    TH = T4 - T7; | ||
|  | 		    TN = W[6]; | ||
|  | 		    TO = W[7]; | ||
|  | 		    TP = FMA(T2, TN, T5 * TO); | ||
|  | 		    TR = FNMS(T5, TN, T2 * TO); | ||
|  | 		    { | ||
|  | 			 E T1d, T1e, T19, T1a; | ||
|  | 			 T1d = Tk * T6; | ||
|  | 			 T1e = To * T3; | ||
|  | 			 T1f = T1d - T1e; | ||
|  | 			 T1k = T1d + T1e; | ||
|  | 			 T19 = Tk * T3; | ||
|  | 			 T1a = To * T6; | ||
|  | 			 T1b = T19 + T1a; | ||
|  | 			 T1i = T19 - T1a; | ||
|  | 		    } | ||
|  | 		    { | ||
|  | 			 E T1w, T1x, T1s, T1t; | ||
|  | 			 T1w = TC * T6; | ||
|  | 			 T1x = TE * T3; | ||
|  | 			 T1y = T1w - T1x; | ||
|  | 			 T1H = T1w + T1x; | ||
|  | 			 T1s = TC * T3; | ||
|  | 			 T1t = TE * T6; | ||
|  | 			 T1u = T1s + T1t; | ||
|  | 			 T1F = T1s - T1t; | ||
|  | 		    } | ||
|  | 	       } | ||
|  | 	       { | ||
|  | 		    E Tf, T3r, T1N, T3e, TA, T3s, T1Q, T3b, TM, T2M, T1W, T2w, TZ, T2N, T21; | ||
|  | 		    E T2x, T1B, T1K, T2V, T2W, T2X, T2Y, T2j, T2D, T2o, T2E, T18, T1n, T2Q, T2R; | ||
|  | 		    E T2S, T2T, T28, T2A, T2d, T2B; | ||
|  | 		    { | ||
|  | 			 E T1, T3d, Te, T3c, T9, Td; | ||
|  | 			 T1 = ri[0]; | ||
|  | 			 T3d = ii[0]; | ||
|  | 			 T9 = ri[WS(rs, 8)]; | ||
|  | 			 Td = ii[WS(rs, 8)]; | ||
|  | 			 Te = FMA(T8, T9, Tc * Td); | ||
|  | 			 T3c = FNMS(Tc, T9, T8 * Td); | ||
|  | 			 Tf = T1 + Te; | ||
|  | 			 T3r = T3d - T3c; | ||
|  | 			 T1N = T1 - Te; | ||
|  | 			 T3e = T3c + T3d; | ||
|  | 		    } | ||
|  | 		    { | ||
|  | 			 E Tq, T1O, Tz, T1P; | ||
|  | 			 { | ||
|  | 			      E Tl, Tp, Tu, Ty; | ||
|  | 			      Tl = ri[WS(rs, 4)]; | ||
|  | 			      Tp = ii[WS(rs, 4)]; | ||
|  | 			      Tq = FMA(Tk, Tl, To * Tp); | ||
|  | 			      T1O = FNMS(To, Tl, Tk * Tp); | ||
|  | 			      Tu = ri[WS(rs, 12)]; | ||
|  | 			      Ty = ii[WS(rs, 12)]; | ||
|  | 			      Tz = FMA(Tt, Tu, Tx * Ty); | ||
|  | 			      T1P = FNMS(Tx, Tu, Tt * Ty); | ||
|  | 			 } | ||
|  | 			 TA = Tq + Tz; | ||
|  | 			 T3s = Tq - Tz; | ||
|  | 			 T1Q = T1O - T1P; | ||
|  | 			 T3b = T1O + T1P; | ||
|  | 		    } | ||
|  | 		    { | ||
|  | 			 E TG, T1S, TL, T1T, T1U, T1V; | ||
|  | 			 { | ||
|  | 			      E TD, TF, TI, TK; | ||
|  | 			      TD = ri[WS(rs, 2)]; | ||
|  | 			      TF = ii[WS(rs, 2)]; | ||
|  | 			      TG = FMA(TC, TD, TE * TF); | ||
|  | 			      T1S = FNMS(TE, TD, TC * TF); | ||
|  | 			      TI = ri[WS(rs, 10)]; | ||
|  | 			      TK = ii[WS(rs, 10)]; | ||
|  | 			      TL = FMA(TH, TI, TJ * TK); | ||
|  | 			      T1T = FNMS(TJ, TI, TH * TK); | ||
|  | 			 } | ||
|  | 			 TM = TG + TL; | ||
|  | 			 T2M = T1S + T1T; | ||
|  | 			 T1U = T1S - T1T; | ||
|  | 			 T1V = TG - TL; | ||
|  | 			 T1W = T1U - T1V; | ||
|  | 			 T2w = T1V + T1U; | ||
|  | 		    } | ||
|  | 		    { | ||
|  | 			 E TT, T1Y, TY, T1Z, T1X, T20; | ||
|  | 			 { | ||
|  | 			      E TQ, TS, TV, TX; | ||
|  | 			      TQ = ri[WS(rs, 14)]; | ||
|  | 			      TS = ii[WS(rs, 14)]; | ||
|  | 			      TT = FMA(TP, TQ, TR * TS); | ||
|  | 			      T1Y = FNMS(TR, TQ, TP * TS); | ||
|  | 			      TV = ri[WS(rs, 6)]; | ||
|  | 			      TX = ii[WS(rs, 6)]; | ||
|  | 			      TY = FMA(TU, TV, TW * TX); | ||
|  | 			      T1Z = FNMS(TW, TV, TU * TX); | ||
|  | 			 } | ||
|  | 			 TZ = TT + TY; | ||
|  | 			 T2N = T1Y + T1Z; | ||
|  | 			 T1X = TT - TY; | ||
|  | 			 T20 = T1Y - T1Z; | ||
|  | 			 T21 = T1X + T20; | ||
|  | 			 T2x = T1X - T20; | ||
|  | 		    } | ||
|  | 		    { | ||
|  | 			 E T1r, T2k, T1J, T2h, T1A, T2l, T1E, T2g; | ||
|  | 			 { | ||
|  | 			      E T1p, T1q, T1G, T1I; | ||
|  | 			      T1p = ri[WS(rs, 15)]; | ||
|  | 			      T1q = ii[WS(rs, 15)]; | ||
|  | 			      T1r = FMA(TN, T1p, TO * T1q); | ||
|  | 			      T2k = FNMS(TO, T1p, TN * T1q); | ||
|  | 			      T1G = ri[WS(rs, 11)]; | ||
|  | 			      T1I = ii[WS(rs, 11)]; | ||
|  | 			      T1J = FMA(T1F, T1G, T1H * T1I); | ||
|  | 			      T2h = FNMS(T1H, T1G, T1F * T1I); | ||
|  | 			 } | ||
|  | 			 { | ||
|  | 			      E T1v, T1z, T1C, T1D; | ||
|  | 			      T1v = ri[WS(rs, 7)]; | ||
|  | 			      T1z = ii[WS(rs, 7)]; | ||
|  | 			      T1A = FMA(T1u, T1v, T1y * T1z); | ||
|  | 			      T2l = FNMS(T1y, T1v, T1u * T1z); | ||
|  | 			      T1C = ri[WS(rs, 3)]; | ||
|  | 			      T1D = ii[WS(rs, 3)]; | ||
|  | 			      T1E = FMA(Tg, T1C, Ti * T1D); | ||
|  | 			      T2g = FNMS(Ti, T1C, Tg * T1D); | ||
|  | 			 } | ||
|  | 			 T1B = T1r + T1A; | ||
|  | 			 T1K = T1E + T1J; | ||
|  | 			 T2V = T1B - T1K; | ||
|  | 			 T2W = T2k + T2l; | ||
|  | 			 T2X = T2g + T2h; | ||
|  | 			 T2Y = T2W - T2X; | ||
|  | 			 { | ||
|  | 			      E T2f, T2i, T2m, T2n; | ||
|  | 			      T2f = T1r - T1A; | ||
|  | 			      T2i = T2g - T2h; | ||
|  | 			      T2j = T2f - T2i; | ||
|  | 			      T2D = T2f + T2i; | ||
|  | 			      T2m = T2k - T2l; | ||
|  | 			      T2n = T1E - T1J; | ||
|  | 			      T2o = T2m + T2n; | ||
|  | 			      T2E = T2m - T2n; | ||
|  | 			 } | ||
|  | 		    } | ||
|  | 		    { | ||
|  | 			 E T14, T24, T1m, T2b, T17, T25, T1h, T2a; | ||
|  | 			 { | ||
|  | 			      E T12, T13, T1j, T1l; | ||
|  | 			      T12 = ri[WS(rs, 1)]; | ||
|  | 			      T13 = ii[WS(rs, 1)]; | ||
|  | 			      T14 = FMA(T2, T12, T5 * T13); | ||
|  | 			      T24 = FNMS(T5, T12, T2 * T13); | ||
|  | 			      T1j = ri[WS(rs, 13)]; | ||
|  | 			      T1l = ii[WS(rs, 13)]; | ||
|  | 			      T1m = FMA(T1i, T1j, T1k * T1l); | ||
|  | 			      T2b = FNMS(T1k, T1j, T1i * T1l); | ||
|  | 			 } | ||
|  | 			 { | ||
|  | 			      E T15, T16, T1c, T1g; | ||
|  | 			      T15 = ri[WS(rs, 9)]; | ||
|  | 			      T16 = ii[WS(rs, 9)]; | ||
|  | 			      T17 = FMA(T3, T15, T6 * T16); | ||
|  | 			      T25 = FNMS(T6, T15, T3 * T16); | ||
|  | 			      T1c = ri[WS(rs, 5)]; | ||
|  | 			      T1g = ii[WS(rs, 5)]; | ||
|  | 			      T1h = FMA(T1b, T1c, T1f * T1g); | ||
|  | 			      T2a = FNMS(T1f, T1c, T1b * T1g); | ||
|  | 			 } | ||
|  | 			 T18 = T14 + T17; | ||
|  | 			 T1n = T1h + T1m; | ||
|  | 			 T2Q = T18 - T1n; | ||
|  | 			 T2R = T24 + T25; | ||
|  | 			 T2S = T2a + T2b; | ||
|  | 			 T2T = T2R - T2S; | ||
|  | 			 { | ||
|  | 			      E T26, T27, T29, T2c; | ||
|  | 			      T26 = T24 - T25; | ||
|  | 			      T27 = T1h - T1m; | ||
|  | 			      T28 = T26 + T27; | ||
|  | 			      T2A = T26 - T27; | ||
|  | 			      T29 = T14 - T17; | ||
|  | 			      T2c = T2a - T2b; | ||
|  | 			      T2d = T29 - T2c; | ||
|  | 			      T2B = T29 + T2c; | ||
|  | 			 } | ||
|  | 		    } | ||
|  | 		    { | ||
|  | 			 E T23, T2r, T3A, T3C, T2q, T3B, T2u, T3x; | ||
|  | 			 { | ||
|  | 			      E T1R, T22, T3y, T3z; | ||
|  | 			      T1R = T1N - T1Q; | ||
|  | 			      T22 = KP707106781 * (T1W - T21); | ||
|  | 			      T23 = T1R + T22; | ||
|  | 			      T2r = T1R - T22; | ||
|  | 			      T3y = KP707106781 * (T2x - T2w); | ||
|  | 			      T3z = T3s + T3r; | ||
|  | 			      T3A = T3y + T3z; | ||
|  | 			      T3C = T3z - T3y; | ||
|  | 			 } | ||
|  | 			 { | ||
|  | 			      E T2e, T2p, T2s, T2t; | ||
|  | 			      T2e = FMA(KP923879532, T28, KP382683432 * T2d); | ||
|  | 			      T2p = FNMS(KP923879532, T2o, KP382683432 * T2j); | ||
|  | 			      T2q = T2e + T2p; | ||
|  | 			      T3B = T2p - T2e; | ||
|  | 			      T2s = FNMS(KP923879532, T2d, KP382683432 * T28); | ||
|  | 			      T2t = FMA(KP382683432, T2o, KP923879532 * T2j); | ||
|  | 			      T2u = T2s - T2t; | ||
|  | 			      T3x = T2s + T2t; | ||
|  | 			 } | ||
|  | 			 ri[WS(rs, 11)] = T23 - T2q; | ||
|  | 			 ii[WS(rs, 11)] = T3A - T3x; | ||
|  | 			 ri[WS(rs, 3)] = T23 + T2q; | ||
|  | 			 ii[WS(rs, 3)] = T3x + T3A; | ||
|  | 			 ri[WS(rs, 15)] = T2r - T2u; | ||
|  | 			 ii[WS(rs, 15)] = T3C - T3B; | ||
|  | 			 ri[WS(rs, 7)] = T2r + T2u; | ||
|  | 			 ii[WS(rs, 7)] = T3B + T3C; | ||
|  | 		    } | ||
|  | 		    { | ||
|  | 			 E T2P, T31, T3m, T3o, T30, T3n, T34, T3j; | ||
|  | 			 { | ||
|  | 			      E T2L, T2O, T3k, T3l; | ||
|  | 			      T2L = Tf - TA; | ||
|  | 			      T2O = T2M - T2N; | ||
|  | 			      T2P = T2L + T2O; | ||
|  | 			      T31 = T2L - T2O; | ||
|  | 			      T3k = TZ - TM; | ||
|  | 			      T3l = T3e - T3b; | ||
|  | 			      T3m = T3k + T3l; | ||
|  | 			      T3o = T3l - T3k; | ||
|  | 			 } | ||
|  | 			 { | ||
|  | 			      E T2U, T2Z, T32, T33; | ||
|  | 			      T2U = T2Q + T2T; | ||
|  | 			      T2Z = T2V - T2Y; | ||
|  | 			      T30 = KP707106781 * (T2U + T2Z); | ||
|  | 			      T3n = KP707106781 * (T2Z - T2U); | ||
|  | 			      T32 = T2T - T2Q; | ||
|  | 			      T33 = T2V + T2Y; | ||
|  | 			      T34 = KP707106781 * (T32 - T33); | ||
|  | 			      T3j = KP707106781 * (T32 + T33); | ||
|  | 			 } | ||
|  | 			 ri[WS(rs, 10)] = T2P - T30; | ||
|  | 			 ii[WS(rs, 10)] = T3m - T3j; | ||
|  | 			 ri[WS(rs, 2)] = T2P + T30; | ||
|  | 			 ii[WS(rs, 2)] = T3j + T3m; | ||
|  | 			 ri[WS(rs, 14)] = T31 - T34; | ||
|  | 			 ii[WS(rs, 14)] = T3o - T3n; | ||
|  | 			 ri[WS(rs, 6)] = T31 + T34; | ||
|  | 			 ii[WS(rs, 6)] = T3n + T3o; | ||
|  | 		    } | ||
|  | 		    { | ||
|  | 			 E T2z, T2H, T3u, T3w, T2G, T3v, T2K, T3p; | ||
|  | 			 { | ||
|  | 			      E T2v, T2y, T3q, T3t; | ||
|  | 			      T2v = T1N + T1Q; | ||
|  | 			      T2y = KP707106781 * (T2w + T2x); | ||
|  | 			      T2z = T2v + T2y; | ||
|  | 			      T2H = T2v - T2y; | ||
|  | 			      T3q = KP707106781 * (T1W + T21); | ||
|  | 			      T3t = T3r - T3s; | ||
|  | 			      T3u = T3q + T3t; | ||
|  | 			      T3w = T3t - T3q; | ||
|  | 			 } | ||
|  | 			 { | ||
|  | 			      E T2C, T2F, T2I, T2J; | ||
|  | 			      T2C = FMA(KP382683432, T2A, KP923879532 * T2B); | ||
|  | 			      T2F = FNMS(KP382683432, T2E, KP923879532 * T2D); | ||
|  | 			      T2G = T2C + T2F; | ||
|  | 			      T3v = T2F - T2C; | ||
|  | 			      T2I = FNMS(KP382683432, T2B, KP923879532 * T2A); | ||
|  | 			      T2J = FMA(KP923879532, T2E, KP382683432 * T2D); | ||
|  | 			      T2K = T2I - T2J; | ||
|  | 			      T3p = T2I + T2J; | ||
|  | 			 } | ||
|  | 			 ri[WS(rs, 9)] = T2z - T2G; | ||
|  | 			 ii[WS(rs, 9)] = T3u - T3p; | ||
|  | 			 ri[WS(rs, 1)] = T2z + T2G; | ||
|  | 			 ii[WS(rs, 1)] = T3p + T3u; | ||
|  | 			 ri[WS(rs, 13)] = T2H - T2K; | ||
|  | 			 ii[WS(rs, 13)] = T3w - T3v; | ||
|  | 			 ri[WS(rs, 5)] = T2H + T2K; | ||
|  | 			 ii[WS(rs, 5)] = T3v + T3w; | ||
|  | 		    } | ||
|  | 		    { | ||
|  | 			 E T11, T35, T3g, T3i, T1M, T3h, T38, T39; | ||
|  | 			 { | ||
|  | 			      E TB, T10, T3a, T3f; | ||
|  | 			      TB = Tf + TA; | ||
|  | 			      T10 = TM + TZ; | ||
|  | 			      T11 = TB + T10; | ||
|  | 			      T35 = TB - T10; | ||
|  | 			      T3a = T2M + T2N; | ||
|  | 			      T3f = T3b + T3e; | ||
|  | 			      T3g = T3a + T3f; | ||
|  | 			      T3i = T3f - T3a; | ||
|  | 			 } | ||
|  | 			 { | ||
|  | 			      E T1o, T1L, T36, T37; | ||
|  | 			      T1o = T18 + T1n; | ||
|  | 			      T1L = T1B + T1K; | ||
|  | 			      T1M = T1o + T1L; | ||
|  | 			      T3h = T1L - T1o; | ||
|  | 			      T36 = T2R + T2S; | ||
|  | 			      T37 = T2W + T2X; | ||
|  | 			      T38 = T36 - T37; | ||
|  | 			      T39 = T36 + T37; | ||
|  | 			 } | ||
|  | 			 ri[WS(rs, 8)] = T11 - T1M; | ||
|  | 			 ii[WS(rs, 8)] = T3g - T39; | ||
|  | 			 ri[0] = T11 + T1M; | ||
|  | 			 ii[0] = T39 + T3g; | ||
|  | 			 ri[WS(rs, 12)] = T35 - T38; | ||
|  | 			 ii[WS(rs, 12)] = T3i - T3h; | ||
|  | 			 ri[WS(rs, 4)] = T35 + T38; | ||
|  | 			 ii[WS(rs, 4)] = T3h + T3i; | ||
|  | 		    } | ||
|  | 	       } | ||
|  | 	  } | ||
|  |      } | ||
|  | } | ||
|  | 
 | ||
|  | static const tw_instr twinstr[] = { | ||
|  |      { TW_CEXP, 0, 1 }, | ||
|  |      { TW_CEXP, 0, 3 }, | ||
|  |      { TW_CEXP, 0, 9 }, | ||
|  |      { TW_CEXP, 0, 15 }, | ||
|  |      { TW_NEXT, 1, 0 } | ||
|  | }; | ||
|  | 
 | ||
|  | static const ct_desc desc = { 16, "t2_16", twinstr, &GENUS, { 156, 68, 40, 0 }, 0, 0, 0 }; | ||
|  | 
 | ||
|  | void X(codelet_t2_16) (planner *p) { | ||
|  |      X(kdft_dit_register) (p, t2_16, &desc); | ||
|  | } | ||
|  | #endif
 |