annotate fft/fftw/fftw-3.3.4/rdft/simd/common/hc2cfdftv_12.c @ 40:223f770b5341 kissfft-double tip

Try a double-precision kissfft

/*
 * 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 Mar  4 13:51:49 EST 2014 */

#include "codelet-rdft.h"

#ifdef HAVE_FMA

/* Generated by: ../../../genfft/gen_hc2cdft_c.native -fma -reorder-insns -schedule-for-pipeline -simd -compact -variables 4 -pipeline-latency 8 -trivial-stores -variables 32 -no-generate-bytw -n 12 -dit -name hc2cfdftv_12 -include hc2cfv.h */

/*
 * This function contains 71 FP additions, 66 FP multiplications,
 * (or, 41 additions, 36 multiplications, 30 fused multiply/add),
 * 86 stack variables, 2 constants, and 24 memory accesses
 */
#include "hc2cfv.h"

static void hc2cfdftv_12(R *Rp, R *Ip, R *Rm, R *Im, const R *W, stride rs, INT mb, INT me, INT ms)
{
     DVK(KP866025403, +0.866025403784438646763723170752936183471402627);
     DVK(KP500000000, +0.500000000000000000000000000000000000000000000);
     {
	  INT m;
	  for (m = mb, W = W + ((mb - 1) * ((TWVL / VL) * 22)); m < me; m = m + VL, Rp = Rp + (VL * ms), Ip = Ip + (VL * ms), Rm = Rm - (VL * ms), Im = Im - (VL * ms), W = W + (TWVL * 22), MAKE_VOLATILE_STRIDE(48, rs)) {
	       V T3, T7, TH, TE, Th, TC, Tq, T11, TU, Tx, Tb, Tz, Tu, Tw, Tp;
	       V Tl, T9, Ta, T8, Ty, Tn, To, Tm, TG, T1, T2, Tt, T5, T6, T4;
	       V Tv, Tj, Tk, Ti, TD, Tf, Tg, Te, TB, TT, TF, TR, Tr;
	       T1 = LD(&(Rp[0]), ms, &(Rp[0]));
	       T2 = LD(&(Rm[0]), -ms, &(Rm[0]));
	       Tt = LDW(&(W[0]));
	       T5 = LD(&(Rp[WS(rs, 2)]), ms, &(Rp[0]));
	       T6 = LD(&(Rm[WS(rs, 2)]), -ms, &(Rm[0]));
	       T4 = LDW(&(W[TWVL * 6]));
	       Tv = LDW(&(W[TWVL * 8]));
	       Tn = LD(&(Rp[WS(rs, 1)]), ms, &(Rp[WS(rs, 1)]));
	       To = LD(&(Rm[WS(rs, 1)]), -ms, &(Rm[WS(rs, 1)]));
	       T3 = VFMACONJ(T2, T1);
	       Tu = VZMULIJ(Tt, VFNMSCONJ(T2, T1));
	       Tm = LDW(&(W[TWVL * 2]));
	       TG = LDW(&(W[TWVL * 4]));
	       T7 = VZMULJ(T4, VFMACONJ(T6, T5));
	       Tw = VZMULIJ(Tv, VFNMSCONJ(T6, T5));
	       Tj = LD(&(Rp[WS(rs, 5)]), ms, &(Rp[WS(rs, 1)]));
	       Tk = LD(&(Rm[WS(rs, 5)]), -ms, &(Rm[WS(rs, 1)]));
	       Ti = LDW(&(W[TWVL * 18]));
	       TD = LDW(&(W[TWVL * 20]));
	       Tp = VZMULJ(Tm, VFMACONJ(To, Tn));
	       TH = VZMULIJ(TG, VFNMSCONJ(To, Tn));
	       Tf = LD(&(Rp[WS(rs, 3)]), ms, &(Rp[WS(rs, 1)]));
	       Tg = LD(&(Rm[WS(rs, 3)]), -ms, &(Rm[WS(rs, 1)]));
	       Te = LDW(&(W[TWVL * 10]));
	       TB = LDW(&(W[TWVL * 12]));
	       Tl = VZMULJ(Ti, VFMACONJ(Tk, Tj));
	       TE = VZMULIJ(TD, VFNMSCONJ(Tk, Tj));
	       T9 = LD(&(Rp[WS(rs, 4)]), ms, &(Rp[0]));
	       Ta = LD(&(Rm[WS(rs, 4)]), -ms, &(Rm[0]));
	       T8 = LDW(&(W[TWVL * 14]));
	       Ty = LDW(&(W[TWVL * 16]));
	       Th = VZMULJ(Te, VFMACONJ(Tg, Tf));
	       TC = VZMULIJ(TB, VFNMSCONJ(Tg, Tf));
	       Tq = VADD(Tl, Tp);
	       T11 = VSUB(Tp, Tl);
	       TU = VSUB(Tu, Tw);
	       Tx = VADD(Tu, Tw);
	       Tb = VZMULJ(T8, VFMACONJ(Ta, T9));
	       Tz = VZMULIJ(Ty, VFNMSCONJ(Ta, T9));
	       TT = VSUB(TC, TE);
	       TF = VADD(TC, TE);
	       TR = VFNMS(LDK(KP500000000), Tq, Th);
	       Tr = VADD(Th, Tq);
	       {
		    V TX, TA, T1d, TV, TY, TI, T1e, T12, TQ, Td, T10, Tc, T1a, TN, TJ;
		    V T1j, T1f, T1b, TS, TM, Ts, T17, T13, TZ, T1i, T1c, T16, TW, TP, TO;
		    V TL, TK, T1k, T1l, T1h, T1g, T18, T19, T15, T14;
		    T10 = VSUB(Tb, T7);
		    Tc = VADD(T7, Tb);
		    TX = VFNMS(LDK(KP500000000), Tx, Tz);
		    TA = VADD(Tx, Tz);
		    T1d = VADD(TU, TT);
		    TV = VSUB(TT, TU);
		    TY = VFNMS(LDK(KP500000000), TF, TH);
		    TI = VADD(TF, TH);
		    T1e = VADD(T10, T11);
		    T12 = VSUB(T10, T11);
		    TQ = VFNMS(LDK(KP500000000), Tc, T3);
		    Td = VADD(T3, Tc);
		    T1a = VADD(TX, TY);
		    TZ = VSUB(TX, TY);
		    TN = VADD(TA, TI);
		    TJ = VSUB(TA, TI);
		    T1j = VMUL(LDK(KP866025403), VADD(T1d, T1e));
		    T1f = VMUL(LDK(KP866025403), VSUB(T1d, T1e));
		    T1b = VADD(TQ, TR);
		    TS = VSUB(TQ, TR);
		    TM = VADD(Td, Tr);
		    Ts = VSUB(Td, Tr);
		    T17 = VFMA(LDK(KP866025403), T12, TZ);
		    T13 = VFNMS(LDK(KP866025403), T12, TZ);
		    T1i = VSUB(T1b, T1a);
		    T1c = VADD(T1a, T1b);
		    T16 = VFNMS(LDK(KP866025403), TV, TS);
		    TW = VFMA(LDK(KP866025403), TV, TS);
		    TP = VCONJ(VMUL(LDK(KP500000000), VADD(TN, TM)));
		    TO = VMUL(LDK(KP500000000), VSUB(TM, TN));
		    TL = VCONJ(VMUL(LDK(KP500000000), VFNMSI(TJ, Ts)));
		    TK = VMUL(LDK(KP500000000), VFMAI(TJ, Ts));
		    T1k = VCONJ(VMUL(LDK(KP500000000), VFNMSI(T1j, T1i)));
		    T1l = VMUL(LDK(KP500000000), VFMAI(T1j, T1i));
		    T1h = VMUL(LDK(KP500000000), VFMAI(T1f, T1c));
		    T1g = VCONJ(VMUL(LDK(KP500000000), VFNMSI(T1f, T1c)));
		    T18 = VMUL(LDK(KP500000000), VFNMSI(T17, T16));
		    T19 = VCONJ(VMUL(LDK(KP500000000), VFMAI(T17, T16)));
		    T15 = VCONJ(VMUL(LDK(KP500000000), VFMAI(T13, TW)));
		    T14 = VMUL(LDK(KP500000000), VFNMSI(T13, TW));
		    ST(&(Rm[WS(rs, 5)]), TP, -ms, &(Rm[WS(rs, 1)]));
		    ST(&(Rp[0]), TO, ms, &(Rp[0]));
		    ST(&(Rm[WS(rs, 2)]), TL, -ms, &(Rm[0]));
		    ST(&(Rp[WS(rs, 3)]), TK, ms, &(Rp[WS(rs, 1)]));
		    ST(&(Rm[WS(rs, 3)]), T1k, -ms, &(Rm[WS(rs, 1)]));
		    ST(&(Rp[WS(rs, 4)]), T1l, ms, &(Rp[0]));
		    ST(&(Rp[WS(rs, 2)]), T1h, ms, &(Rp[0]));
		    ST(&(Rm[WS(rs, 1)]), T1g, -ms, &(Rm[WS(rs, 1)]));
		    ST(&(Rp[WS(rs, 5)]), T18, ms, &(Rp[WS(rs, 1)]));
		    ST(&(Rm[WS(rs, 4)]), T19, -ms, &(Rm[0]));
		    ST(&(Rm[0]), T15, -ms, &(Rm[0]));
		    ST(&(Rp[WS(rs, 1)]), T14, ms, &(Rp[WS(rs, 1)]));
	       }
	  }
     }
     VLEAVE();
}

static const tw_instr twinstr[] = {
     VTW(1, 1),
     VTW(1, 2),
     VTW(1, 3),
     VTW(1, 4),
     VTW(1, 5),
     VTW(1, 6),
     VTW(1, 7),
     VTW(1, 8),
     VTW(1, 9),
     VTW(1, 10),
     VTW(1, 11),
     {TW_NEXT, VL, 0}
};

static const hc2c_desc desc = { 12, XSIMD_STRING("hc2cfdftv_12"), twinstr, &GENUS, {41, 36, 30, 0} };

void XSIMD(codelet_hc2cfdftv_12) (planner *p) {
     X(khc2c_register) (p, hc2cfdftv_12, &desc, HC2C_VIA_DFT);
}
#else				/* HAVE_FMA */

/* Generated by: ../../../genfft/gen_hc2cdft_c.native -simd -compact -variables 4 -pipeline-latency 8 -trivial-stores -variables 32 -no-generate-bytw -n 12 -dit -name hc2cfdftv_12 -include hc2cfv.h */

/*
 * This function contains 71 FP additions, 41 FP multiplications,
 * (or, 67 additions, 37 multiplications, 4 fused multiply/add),
 * 58 stack variables, 4 constants, and 24 memory accesses
 */
#include "hc2cfv.h"

static void hc2cfdftv_12(R *Rp, R *Ip, R *Rm, R *Im, const R *W, stride rs, INT mb, INT me, INT ms)
{
     DVK(KP433012701, +0.433012701892219323381861585376468091735701313);
     DVK(KP866025403, +0.866025403784438646763723170752936183471402627);
     DVK(KP250000000, +0.250000000000000000000000000000000000000000000);
     DVK(KP500000000, +0.500000000000000000000000000000000000000000000);
     {
	  INT m;
	  for (m = mb, W = W + ((mb - 1) * ((TWVL / VL) * 22)); m < me; m = m + VL, Rp = Rp + (VL * ms), Ip = Ip + (VL * ms), Rm = Rm - (VL * ms), Im = Im - (VL * ms), W = W + (TWVL * 22), MAKE_VOLATILE_STRIDE(48, rs)) {
	       V TX, T13, T4, Tf, TZ, TD, TF, T17, TW, T14, Tw, Tl, T10, TL, TN;
	       V T16;
	       {
		    V T1, T3, TA, Tb, Td, Te, T9, TC, T2, Tz, Tc, Ta, T6, T8, T7;
		    V T5, TB, TE, Ti, Tk, TI, Ts, Tu, Tv, Tq, TK, Tj, TH, Tt, Tr;
		    V Tn, Tp, To, Tm, TJ, Th, TM;
		    T1 = LD(&(Rp[0]), ms, &(Rp[0]));
		    T2 = LD(&(Rm[0]), -ms, &(Rm[0]));
		    T3 = VCONJ(T2);
		    Tz = LDW(&(W[0]));
		    TA = VZMULIJ(Tz, VSUB(T3, T1));
		    Tb = LD(&(Rp[WS(rs, 4)]), ms, &(Rp[0]));
		    Tc = LD(&(Rm[WS(rs, 4)]), -ms, &(Rm[0]));
		    Td = VCONJ(Tc);
		    Ta = LDW(&(W[TWVL * 14]));
		    Te = VZMULJ(Ta, VADD(Tb, Td));
		    T6 = LD(&(Rp[WS(rs, 2)]), ms, &(Rp[0]));
		    T7 = LD(&(Rm[WS(rs, 2)]), -ms, &(Rm[0]));
		    T8 = VCONJ(T7);
		    T5 = LDW(&(W[TWVL * 6]));
		    T9 = VZMULJ(T5, VADD(T6, T8));
		    TB = LDW(&(W[TWVL * 8]));
		    TC = VZMULIJ(TB, VSUB(T8, T6));
		    TX = VSUB(TC, TA);
		    T13 = VSUB(Te, T9);
		    T4 = VADD(T1, T3);
		    Tf = VADD(T9, Te);
		    TZ = VFNMS(LDK(KP250000000), Tf, VMUL(LDK(KP500000000), T4));
		    TD = VADD(TA, TC);
		    TE = LDW(&(W[TWVL * 16]));
		    TF = VZMULIJ(TE, VSUB(Td, Tb));
		    T17 = VFNMS(LDK(KP500000000), TD, TF);
		    Ti = LD(&(Rp[WS(rs, 3)]), ms, &(Rp[WS(rs, 1)]));
		    Tj = LD(&(Rm[WS(rs, 3)]), -ms, &(Rm[WS(rs, 1)]));
		    Tk = VCONJ(Tj);
		    TH = LDW(&(W[TWVL * 12]));
		    TI = VZMULIJ(TH, VSUB(Tk, Ti));
		    Ts = LD(&(Rp[WS(rs, 1)]), ms, &(Rp[WS(rs, 1)]));
		    Tt = LD(&(Rm[WS(rs, 1)]), -ms, &(Rm[WS(rs, 1)]));
		    Tu = VCONJ(Tt);
		    Tr = LDW(&(W[TWVL * 2]));
		    Tv = VZMULJ(Tr, VADD(Ts, Tu));
		    Tn = LD(&(Rp[WS(rs, 5)]), ms, &(Rp[WS(rs, 1)]));
		    To = LD(&(Rm[WS(rs, 5)]), -ms, &(Rm[WS(rs, 1)]));
		    Tp = VCONJ(To);
		    Tm = LDW(&(W[TWVL * 18]));
		    Tq = VZMULJ(Tm, VADD(Tn, Tp));
		    TJ = LDW(&(W[TWVL * 20]));
		    TK = VZMULIJ(TJ, VSUB(Tp, Tn));
		    TW = VSUB(TK, TI);
		    T14 = VSUB(Tv, Tq);
		    Tw = VADD(Tq, Tv);
		    Th = LDW(&(W[TWVL * 10]));
		    Tl = VZMULJ(Th, VADD(Ti, Tk));
		    T10 = VFNMS(LDK(KP250000000), Tw, VMUL(LDK(KP500000000), Tl));
		    TL = VADD(TI, TK);
		    TM = LDW(&(W[TWVL * 4]));
		    TN = VZMULIJ(TM, VSUB(Tu, Ts));
		    T16 = VFNMS(LDK(KP500000000), TL, TN);
	       }
	       {
		    V Ty, TS, TP, TT, Tg, Tx, TG, TO, TQ, TV, TR, TU, T1i, T1o, T1l;
		    V T1p, T1g, T1h, T1j, T1k, T1m, T1r, T1n, T1q, T12, T1c, T19, T1d, TY, T11;
		    V T15, T18, T1a, T1f, T1b, T1e;
		    Tg = VADD(T4, Tf);
		    Tx = VADD(Tl, Tw);
		    Ty = VADD(Tg, Tx);
		    TS = VSUB(Tg, Tx);
		    TG = VADD(TD, TF);
		    TO = VADD(TL, TN);
		    TP = VADD(TG, TO);
		    TT = VBYI(VSUB(TO, TG));
		    TQ = VCONJ(VMUL(LDK(KP500000000), VSUB(Ty, TP)));
		    ST(&(Rm[WS(rs, 5)]), TQ, -ms, &(Rm[WS(rs, 1)]));
		    TV = VMUL(LDK(KP500000000), VADD(TS, TT));
		    ST(&(Rp[WS(rs, 3)]), TV, ms, &(Rp[WS(rs, 1)]));
		    TR = VMUL(LDK(KP500000000), VADD(Ty, TP));
		    ST(&(Rp[0]), TR, ms, &(Rp[0]));
		    TU = VCONJ(VMUL(LDK(KP500000000), VSUB(TS, TT)));
		    ST(&(Rm[WS(rs, 2)]), TU, -ms, &(Rm[0]));
		    T1g = VADD(TX, TW);
		    T1h = VADD(T13, T14);
		    T1i = VMUL(LDK(KP500000000), VBYI(VMUL(LDK(KP866025403), VSUB(T1g, T1h))));
		    T1o = VMUL(LDK(KP500000000), VBYI(VMUL(LDK(KP866025403), VADD(T1g, T1h))));
		    T1j = VADD(TZ, T10);
		    T1k = VMUL(LDK(KP500000000), VADD(T17, T16));
		    T1l = VSUB(T1j, T1k);
		    T1p = VADD(T1j, T1k);
		    T1m = VADD(T1i, T1l);
		    ST(&(Rp[WS(rs, 2)]), T1m, ms, &(Rp[0]));
		    T1r = VCONJ(VSUB(T1p, T1o));
		    ST(&(Rm[WS(rs, 3)]), T1r, -ms, &(Rm[WS(rs, 1)]));
		    T1n = VCONJ(VSUB(T1l, T1i));
		    ST(&(Rm[WS(rs, 1)]), T1n, -ms, &(Rm[WS(rs, 1)]));
		    T1q = VADD(T1o, T1p);
		    ST(&(Rp[WS(rs, 4)]), T1q, ms, &(Rp[0]));
		    TY = VMUL(LDK(KP433012701), VSUB(TW, TX));
		    T11 = VSUB(TZ, T10);
		    T12 = VADD(TY, T11);
		    T1c = VSUB(T11, TY);
		    T15 = VMUL(LDK(KP866025403), VSUB(T13, T14));
		    T18 = VSUB(T16, T17);
		    T19 = VMUL(LDK(KP500000000), VBYI(VSUB(T15, T18)));
		    T1d = VMUL(LDK(KP500000000), VBYI(VADD(T15, T18)));
		    T1a = VCONJ(VSUB(T12, T19));
		    ST(&(Rm[0]), T1a, -ms, &(Rm[0]));
		    T1f = VCONJ(VADD(T1c, T1d));
		    ST(&(Rm[WS(rs, 4)]), T1f, -ms, &(Rm[0]));
		    T1b = VADD(T12, T19);
		    ST(&(Rp[WS(rs, 1)]), T1b, ms, &(Rp[WS(rs, 1)]));
		    T1e = VSUB(T1c, T1d);
		    ST(&(Rp[WS(rs, 5)]), T1e, ms, &(Rp[WS(rs, 1)]));
	       }
	  }
     }
     VLEAVE();
}

static const tw_instr twinstr[] = {
     VTW(1, 1),
     VTW(1, 2),
     VTW(1, 3),
     VTW(1, 4),
     VTW(1, 5),
     VTW(1, 6),
     VTW(1, 7),
     VTW(1, 8),
     VTW(1, 9),
     VTW(1, 10),
     VTW(1, 11),
     {TW_NEXT, VL, 0}
};

static const hc2c_desc desc = { 12, XSIMD_STRING("hc2cfdftv_12"), twinstr, &GENUS, {67, 37, 4, 0} };

void XSIMD(codelet_hc2cfdftv_12) (planner *p) {
     X(khc2c_register) (p, hc2cfdftv_12, &desc, HC2C_VIA_DFT);
}
#endif				/* HAVE_FMA */