t1fv_32.c

快速fft变换

/*
 * Copyright (c) 2003, 2007-8 Matteo Frigo
 * Copyright (c) 2003, 2007-8 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

/* This file was automatically generated --- DO NOT EDIT */
/* Generated on Sat Nov 15 20:47:50 EST 2008 */

#include "codelet-dft.h"

#ifdef HAVE_FMA

/* Generated by: ../../../genfft/gen_twiddle_c -fma -reorder-insns -schedule-for-pipeline -simd -compact -variables 4 -pipeline-latency 8 -n 32 -name t1fv_32 -include t1f.h */

/*
 * This function contains 217 FP additions, 160 FP multiplications,
 * (or, 119 additions, 62 multiplications, 98 fused multiply/add),
 * 112 stack variables, 7 constants, and 64 memory accesses
 */
#include "t1f.h"

static void t1fv_32(R *ri, R *ii, const R *W, stride rs, INT mb, INT me, INT ms)
{
     DVK(KP831469612, +0.831469612302545237078788377617905756738560812);
     DVK(KP980785280, +0.980785280403230449126182236134239036973933731);
     DVK(KP668178637, +0.668178637919298919997757686523080761552472251);
     DVK(KP198912367, +0.198912367379658006911597622644676228597850501);
     DVK(KP923879532, +0.923879532511286756128183189396788286822416626);
     DVK(KP707106781, +0.707106781186547524400844362104849039284835938);
     DVK(KP414213562, +0.414213562373095048801688724209698078569671875);
     INT m;
     R *x;
     x = ri;
     for (m = mb, W = W + (mb * ((TWVL / VL) * 62)); m < me; m = m + VL, x = x + (VL * ms), W = W + (TWVL * 62), MAKE_VOLATILE_STRIDE(rs)) {
	  V T26, T25, T1Z, T22, T1W, T2a, T2k, T2g;
	  {
	       V T4, T1z, T2o, T32, T2r, T3f, Tf, T1A, T34, T2L, T1D, TC, T33, T2O, T1C;
	       V Tr, T2C, T3a, T2F, T3b, T1r, T21, T1k, T20, TQ, TM, TS, TL, T2t, TJ;
	       V T10, T2u;
	       {
		    V Tt, T9, T2p, Te, T2q, TA, Tu, Tx;
		    {
			 V T1, T1x, T2, T1v;
			 T1 = LD(&(x[0]), ms, &(x[0]));
			 T1x = LD(&(x[WS(rs, 24)]), ms, &(x[0]));
			 T2 = LD(&(x[WS(rs, 16)]), ms, &(x[0]));
			 T1v = LD(&(x[WS(rs, 8)]), ms, &(x[0]));
			 {
			      V T5, Tc, T7, Ta, T2m, T2n;
			      T5 = LD(&(x[WS(rs, 4)]), ms, &(x[0]));
			      Tc = LD(&(x[WS(rs, 12)]), ms, &(x[0]));
			      T7 = LD(&(x[WS(rs, 20)]), ms, &(x[0]));
			      Ta = LD(&(x[WS(rs, 28)]), ms, &(x[0]));
			      {
				   V T1y, T3, T1w, T6, Td, T8, Tb, Ts, Tz;
				   Ts = LD(&(x[WS(rs, 30)]), ms, &(x[0]));
				   T1y = BYTWJ(&(W[TWVL * 46]), T1x);
				   T3 = BYTWJ(&(W[TWVL * 30]), T2);
				   T1w = BYTWJ(&(W[TWVL * 14]), T1v);
				   T6 = BYTWJ(&(W[TWVL * 6]), T5);
				   Td = BYTWJ(&(W[TWVL * 22]), Tc);
				   T8 = BYTWJ(&(W[TWVL * 38]), T7);
				   Tb = BYTWJ(&(W[TWVL * 54]), Ta);
				   Tt = BYTWJ(&(W[TWVL * 58]), Ts);
				   Tz = LD(&(x[WS(rs, 6)]), ms, &(x[0]));
				   T4 = VSUB(T1, T3);
				   T2m = VADD(T1, T3);
				   T1z = VSUB(T1w, T1y);
				   T2n = VADD(T1w, T1y);
				   T9 = VSUB(T6, T8);
				   T2p = VADD(T6, T8);
				   Te = VSUB(Tb, Td);
				   T2q = VADD(Tb, Td);
				   TA = BYTWJ(&(W[TWVL * 10]), Tz);
			      }
			      Tu = LD(&(x[WS(rs, 14)]), ms, &(x[0]));
			      T2o = VADD(T2m, T2n);
			      T32 = VSUB(T2m, T2n);
			      Tx = LD(&(x[WS(rs, 22)]), ms, &(x[0]));
			 }
		    }
		    {
			 V Tv, To, Ty, Ti, Tj, Tm, Th;
			 Th = LD(&(x[WS(rs, 2)]), ms, &(x[0]));
			 T2r = VADD(T2p, T2q);
			 T3f = VSUB(T2q, T2p);
			 Tf = VADD(T9, Te);
			 T1A = VSUB(Te, T9);
			 Tv = BYTWJ(&(W[TWVL * 26]), Tu);
			 To = LD(&(x[WS(rs, 26)]), ms, &(x[0]));
			 Ty = BYTWJ(&(W[TWVL * 42]), Tx);
			 Ti = BYTWJ(&(W[TWVL * 2]), Th);
			 Tj = LD(&(x[WS(rs, 18)]), ms, &(x[0]));
			 Tm = LD(&(x[WS(rs, 10)]), ms, &(x[0]));
			 {
			      V T1f, T1h, T1a, T1c, T18, T2A, T2B, T1p;
			      {
				   V T15, T17, T1o, T1m;
				   {
					V Tw, T2J, Tp, T2K, TB, Tk, Tn, T1n, T14, T16;
					T14 = LD(&(x[WS(rs, 31)]), ms, &(x[WS(rs, 1)]));
					T16 = LD(&(x[WS(rs, 15)]), ms, &(x[WS(rs, 1)]));
					Tw = VSUB(Tt, Tv);
					T2J = VADD(Tt, Tv);
					Tp = BYTWJ(&(W[TWVL * 50]), To);
					T2K = VADD(TA, Ty);
					TB = VSUB(Ty, TA);
					Tk = BYTWJ(&(W[TWVL * 34]), Tj);
					Tn = BYTWJ(&(W[TWVL * 18]), Tm);
					T15 = BYTWJ(&(W[TWVL * 60]), T14);
					T17 = BYTWJ(&(W[TWVL * 28]), T16);
					T1n = LD(&(x[WS(rs, 7)]), ms, &(x[WS(rs, 1)]));
					{
					     V T2M, Tl, T2N, Tq, T1l;
					     T1l = LD(&(x[WS(rs, 23)]), ms, &(x[WS(rs, 1)]));
					     T34 = VSUB(T2J, T2K);
					     T2L = VADD(T2J, T2K);
					     T1D = VFMA(LDK(KP414213562), Tw, TB);
					     TC = VFNMS(LDK(KP414213562), TB, Tw);
					     T2M = VADD(Ti, Tk);
					     Tl = VSUB(Ti, Tk);
					     T2N = VADD(Tn, Tp);
					     Tq = VSUB(Tn, Tp);
					     T1o = BYTWJ(&(W[TWVL * 12]), T1n);
					     T1m = BYTWJ(&(W[TWVL * 44]), T1l);
					     {
						  V T1e, T1g, T19, T1b;
						  T1e = LD(&(x[WS(rs, 27)]), ms, &(x[WS(rs, 1)]));
						  T1g = LD(&(x[WS(rs, 11)]), ms, &(x[WS(rs, 1)]));
						  T19 = LD(&(x[WS(rs, 3)]), ms, &(x[WS(rs, 1)]));
						  T1b = LD(&(x[WS(rs, 19)]), ms, &(x[WS(rs, 1)]));
						  T33 = VSUB(T2M, T2N);
						  T2O = VADD(T2M, T2N);
						  T1C = VFMA(LDK(KP414213562), Tl, Tq);
						  Tr = VFNMS(LDK(KP414213562), Tq, Tl);
						  T1f = BYTWJ(&(W[TWVL * 52]), T1e);
						  T1h = BYTWJ(&(W[TWVL * 20]), T1g);
						  T1a = BYTWJ(&(W[TWVL * 4]), T19);
						  T1c = BYTWJ(&(W[TWVL * 36]), T1b);
					     }
					}
				   }
				   T18 = VSUB(T15, T17);
				   T2A = VADD(T15, T17);
				   T2B = VADD(T1o, T1m);
				   T1p = VSUB(T1m, T1o);
			      }
			      {
				   V TG, TI, TZ, TX;
				   {
					V T1i, T2E, T1d, T2D, TH, TY, TF;
					TF = LD(&(x[WS(rs, 1)]), ms, &(x[WS(rs, 1)]));
					T1i = VSUB(T1f, T1h);
					T2E = VADD(T1f, T1h);
					T1d = VSUB(T1a, T1c);
					T2D = VADD(T1a, T1c);
					TH = LD(&(x[WS(rs, 17)]), ms, &(x[WS(rs, 1)]));
					TY = LD(&(x[WS(rs, 25)]), ms, &(x[WS(rs, 1)]));
					T2C = VADD(T2A, T2B);
					T3a = VSUB(T2A, T2B);
					TG = BYTWJ(&(W[0]), TF);
					{
					     V TW, T1j, T1q, TP, TR, TK;
					     TW = LD(&(x[WS(rs, 9)]), ms, &(x[WS(rs, 1)]));
					     T2F = VADD(T2D, T2E);
					     T3b = VSUB(T2E, T2D);
					     T1j = VADD(T1d, T1i);
					     T1q = VSUB(T1i, T1d);
					     TI = BYTWJ(&(W[TWVL * 32]), TH);
					     TZ = BYTWJ(&(W[TWVL * 48]), TY);
					     TP = LD(&(x[WS(rs, 29)]), ms, &(x[WS(rs, 1)]));
					     TX = BYTWJ(&(W[TWVL * 16]), TW);
					     TR = LD(&(x[WS(rs, 13)]), ms, &(x[WS(rs, 1)]));
					     TK = LD(&(x[WS(rs, 5)]), ms, &(x[WS(rs, 1)]));
					     T1r = VFMA(LDK(KP707106781), T1q, T1p);
					     T21 = VFNMS(LDK(KP707106781), T1q, T1p);
					     T1k = VFMA(LDK(KP707106781), T1j, T18);
					     T20 = VFNMS(LDK(KP707106781), T1j, T18);
					     TQ = BYTWJ(&(W[TWVL * 56]), TP);
					     TM = LD(&(x[WS(rs, 21)]), ms, &(x[WS(rs, 1)]));
					     TS = BYTWJ(&(W[TWVL * 24]), TR);
					     TL = BYTWJ(&(W[TWVL * 8]), TK);
					}
				   }
				   T2t = VADD(TG, TI);
				   TJ = VSUB(TG, TI);
				   T10 = VSUB(TX, TZ);
				   T2u = VADD(TX, TZ);
			      }
			 }
		    }
	       }
	       {
		    V T2s, TT, T2x, T2P, T2Y, T2G, T37, T2v, T2w, TO, T2W, T30, T2U, TN, T2V;
		    T2s = VSUB(T2o, T2r);
		    T2U = VADD(T2o, T2r);
		    TN = BYTWJ(&(W[TWVL * 40]), TM);
		    TT = VSUB(TQ, TS);
		    T2x = VADD(TQ, TS);
		    T2P = VSUB(T2L, T2O);
		    T2V = VADD(T2O, T2L);
		    T2Y = VADD(T2C, T2F);
		    T2G = VSUB(T2C, T2F);
		    T37 = VSUB(T2t, T2u);
		    T2v = VADD(T2t, T2u);
		    T2w = VADD(TL, TN);
		    TO = VSUB(TL, TN);
		    T2W = VADD(T2U, T2V);
		    T30 = VSUB(T2U, T2V);
		    {
			 V T3i, T3o, T36, T3r, T3h, T3j, T12, T1Y, TV, T1X, T3s, T3d, T2Q, T2H, T31;
			 V T2Z;
			 {
			      V T35, T3g, T38, T2y, T11, TU;
			      T35 = VADD(T33, T34);
			      T3g = VSUB(T34, T33);
			      T38 = VSUB(T2w, T2x);
			      T2y = VADD(T2w, T2x);
			      T11 = VSUB(TO, TT);
			      TU = VADD(TO, TT);
			      {
				   V T3c, T39, T2X, T2z;
				   T3c = VFNMS(LDK(KP414213562), T3b, T3a);
				   T3i = VFMA(LDK(KP414213562), T3a, T3b);
				   T3o = VFNMS(LDK(KP707106781), T35, T32);
				   T36 = VFMA(LDK(KP707106781), T35, T32);
				   T3r = VFNMS(LDK(KP707106781), T3g, T3f);
				   T3h = VFMA(LDK(KP707106781), T3g, T3f);
				   T39 = VFNMS(LDK(KP414213562), T38, T37);
				   T3j = VFMA(LDK(KP414213562), T37, T38);
				   T2X = VADD(T2v, T2y);
				   T2z = VSUB(T2v, T2y);
				   T12 = VFMA(LDK(KP707106781), T11, T10);
				   T1Y = VFNMS(LDK(KP707106781), T11, T10);
				   TV = VFMA(LDK(KP707106781), TU, TJ);
				   T1X = VFNMS(LDK(KP707106781), TU, TJ);
				   T3s = VSUB(T3c, T39);
				   T3d = VADD(T39, T3c);
				   T2Q = VSUB(T2G, T2z);
				   T2H = VADD(T2z, T2G);
				   T31 = VSUB(T2Y, T2X);
				   T2Z = VADD(T2X, T2Y);
			      }
			 }
			 {
			      V Tg, T1U, TD, T1G, T13, T1s, T1H, T1B, T1V, T1E, T3k, T3p, T2e, T2f;
			      Tg = VFMA(LDK(KP707106781), Tf, T4);
			      T1U = VFNMS(LDK(KP707106781), Tf, T4);
			      T3k = VSUB(T3i, T3j);
			      T3p = VADD(T3j, T3i);
			      {
				   V T3v, T3t, T3e, T3m;
				   T3v = VFNMS(LDK(KP923879532), T3s, T3r);
				   T3t = VFMA(LDK(KP923879532), T3s, T3r);
				   T3e = VFNMS(LDK(KP923879532), T3d, T36);
				   T3m = VFMA(LDK(KP923879532), T3d, T36);
				   {
					V T2R, T2T, T2I, T2S;
					T2R = VFNMS(LDK(KP707106781), T2Q, T2P);
					T2T = VFMA(LDK(KP707106781), T2Q, T2P);
					T2I = VFNMS(LDK(KP707106781), T2H, T2s);
					T2S = VFMA(LDK(KP707106781), T2H, T2s);
					ST(&(x[WS(rs, 24)]), VFNMSI(T31, T30), ms, &(x[0]));
					ST(&(x[WS(rs, 8)]), VFMAI(T31, T30), ms, &(x[0]));
					ST(&(x[0]), VADD(T2W, T2Z), ms, &(x[0]));
					ST(&(x[WS(rs, 16)]), VSUB(T2W, T2Z), ms, &(x[0]));
					{
					     V T3u, T3q, T3l, T3n;
					     T3u = VFMA(LDK(KP923879532), T3p, T3o);
					     T3q = VFNMS(LDK(KP923879532), T3p, T3o);
					     T3l = VFNMS(LDK(KP923879532), T3k, T3h);
					     T3n = VFMA(LDK(KP923879532), T3k, T3h);
					     ST(&(x[WS(rs, 4)]), VFMAI(T2T, T2S), ms, &(x[0]));
					     ST(&(x[WS(rs, 28)]), VFNMSI(T2T, T2S), ms, &(x[0]));
					     ST(&(x[WS(rs, 20)]), VFMAI(T2R, T2I), ms, &(x[0]));
					     ST(&(x[WS(rs, 12)]), VFNMSI(T2R, T2I), ms, &(x[0]));
					     ST(&(x[WS(rs, 22)]), VFNMSI(T3t, T3q), ms, &(x[0]));
					     ST(&(x[WS(rs, 10)]), VFMAI(T3t, T3q), ms, &(x[0]));
					     ST(&(x[WS(rs, 26)]), VFMAI(T3v, T3u), ms, &(x[0]));
					     ST(&(x[WS(rs, 6)]), VFNMSI(T3v, T3u), ms, &(x[0]));
					     ST(&(x[WS(rs, 2)]), VFMAI(T3n, T3m), ms, &(x[0]));
					     ST(&(x[WS(rs, 30)]), VFNMSI(T3n, T3m), ms, &(x[0]));
					     ST(&(x[WS(rs, 18)]), VFMAI(T3l, T3e), ms, &(x[0]));
					     ST(&(x[WS(rs, 14)]), VFNMSI(T3l, T3e), ms, &(x[0]));
					     T26 = VSUB(TC, Tr);
					     TD = VADD(Tr, TC);
					}
				   }
			      }
			      T1G = VFMA(LDK(KP198912367), TV, T12);
			      T13 = VFNMS(LDK(KP198912367), T12, TV);
			      T1s = VFNMS(LDK(KP198912367), T1r, T1k);
			      T1H = VFMA(LDK(KP198912367), T1k, T1r);
			      T1B = VFNMS(LDK(KP707106781), T1A, T1z);
			      T25 = VFMA(LDK(KP707106781), T1A, T1z);
			      T1V = VADD(T1C, T1D);
			      T1E = VSUB(T1C, T1D);
			      {
				   V T1S, T1O, T1K, T1u, T1R, T1T, T1L, T1J;
				   {
					V TE, T1M, T1I, T1N, T1t, T1Q, T1F, T1P, T28, T29;
					TE = VFMA(LDK(KP923879532), TD, Tg);
					T1M = VFNMS(LDK(KP923879532), TD, Tg);
					T1I = VSUB(T1G, T1H);
					T1N = VADD(T1G, T1H);
					T1t = VADD(T13, T1s);
					T1Q = VSUB(T1s, T13);
					T1F = VFMA(LDK(KP923879532), T1E, T1B);
					T1P = VFNMS(LDK(KP923879532), T1E, T1B);
					T28 = VFNMS(LDK(KP668178637), T1X, T1Y);
					T1Z = VFMA(LDK(KP668178637), T1Y, T1X);
					T1S = VFMA(LDK(KP980785280), T1N, T1M);
					T1O = VFNMS(LDK(KP980785280), T1N, T1M);
					T22 = VFMA(LDK(KP668178637), T21, T20);
					T29 = VFNMS(LDK(KP668178637), T20, T21);
					T1K = VFMA(LDK(KP980785280), T1t, TE);
					T1u = VFNMS(LDK(KP980785280), T1t, TE);
					T1R = VFNMS(LDK(KP980785280), T1Q, T1P);
					T1T = VFMA(LDK(KP980785280), T1Q, T1P);
					T1L = VFMA(LDK(KP980785280), T1I, T1F);
					T1J = VFNMS(LDK(KP980785280), T1I, T1F);
					T2e = VFNMS(LDK(KP923879532), T1V, T1U);
					T1W = VFMA(LDK(KP923879532), T1V, T1U);
					T2a = VSUB(T28, T29);
					T2f = VADD(T28, T29);
				   }
				   ST(&(x[WS(rs, 23)]), VFMAI(T1R, T1O), ms, &(x[WS(rs, 1)]));
				   ST(&(x[WS(rs, 9)]), VFNMSI(T1R, T1O), ms, &(x[WS(rs, 1)]));
				   ST(&(x[WS(rs, 25)]), VFNMSI(T1T, T1S), ms, &(x[WS(rs, 1)]));
				   ST(&(x[WS(rs, 7)]), VFMAI(T1T, T1S), ms, &(x[WS(rs, 1)]));
				   ST(&(x[WS(rs, 31)]), VFMAI(T1L, T1K), ms, &(x[WS(rs, 1)]));
				   ST(&(x[WS(rs, 1)]), VFNMSI(T1L, T1K), ms, &(x[WS(rs, 1)]));
				   ST(&(x[WS(rs, 15)]), VFMAI(T1J, T1u), ms, &(x[WS(rs, 1)]));
				   ST(&(x[WS(rs, 17)]), VFNMSI(T1J, T1u), ms, &(x[WS(rs, 1)]));
			      }
			      T2k = VFNMS(LDK(KP831469612), T2f, T2e);
			      T2g = VFMA(LDK(KP831469612), T2f, T2e);
			 }
		    }
	       }
	  }
	  {
	       V T2i, T23, T2h, T27;
	       T2i = VSUB(T22, T1Z);
	       T23 = VADD(T1Z, T22);
	       T2h = VFNMS(LDK(KP923879532), T26, T25);
	       T27 = VFMA(LDK(KP923879532), T26, T25);
	       {
		    V T2c, T24, T2j, T2l, T2d, T2b;
		    T2c = VFMA(LDK(KP831469612), T23, T1W);
		    T24 = VFNMS(LDK(KP831469612), T23, T1W);
		    T2j = VFMA(LDK(KP831469612), T2i, T2h);
		    T2l = VFNMS(LDK(KP831469612), T2i, T2h);
		    T2d = VFMA(LDK(KP831469612), T2a, T27);
		    T2b = VFNMS(LDK(KP831469612), T2a, T27);
		    ST(&(x[WS(rs, 21)]), VFNMSI(T2j, T2g), ms, &(x[WS(rs, 1)]));
		    ST(&(x[WS(rs, 11)]), VFMAI(T2j, T2g), ms, &(x[WS(rs, 1)]));
		    ST(&(x[WS(rs, 27)]), VFMAI(T2l, T2k), ms, &(x[WS(rs, 1)]));
		    ST(&(x[WS(rs, 5)]), VFNMSI(T2l, T2k), ms, &(x[WS(rs, 1)]));
		    ST(&(x[WS(rs, 3)]), VFMAI(T2d, T2c), ms, &(x[WS(rs, 1)]));
		    ST(&(x[WS(rs, 29)]), VFNMSI(T2d, T2c), ms, &(x[WS(rs, 1)]));
		    ST(&(x[WS(rs, 19)]), VFMAI(T2b, T24), ms, &(x[WS(rs, 1)]));
		    ST(&(x[WS(rs, 13)]), VFNMSI(T2b, T24), ms, &(x[WS(rs, 1)]));
	       }
	  }
     }
}

static const tw_instr twinstr[] = {
     VTW(0, 1),
     VTW(0, 2),
     VTW(0, 3),
     VTW(0, 4),
     VTW(0, 5),
     VTW(0, 6),
     VTW(0, 7),
     VTW(0, 8),
     VTW(0, 9),
     VTW(0, 10),
     VTW(0, 11),
     VTW(0, 12),
     VTW(0, 13),
     VTW(0, 14),
     VTW(0, 15),
     VTW(0, 16),
     VTW(0, 17),
     VTW(0, 18),
     VTW(0, 19),
     VTW(0, 20),
     VTW(0, 21),
     VTW(0, 22),
     VTW(0, 23),
     VTW(0, 24),
     VTW(0, 25),
     VTW(0, 26),
     VTW(0, 27),
     VTW(0, 28),
     VTW(0, 29),
     VTW(0, 30),
     VTW(0, 31),
     {TW_NEXT, VL, 0}
};

static const ct_desc desc = { 32, "t1fv_32", twinstr, &GENUS, {119, 62, 98, 0}, 0, 0, 0 };

void X(codelet_t1fv_32) (planner *p) {
     X(kdft_dit_register) (p, t1fv_32, &desc);
}
#else				/* HAVE_FMA */

/* Generated by: ../../../genfft/gen_twiddle_c -simd -compact -variables 4 -pipeline-latency 8 -n 32 -name t1fv_32 -include t1f.h */

/*
 * This function contains 217 FP additions, 104 FP multiplications,