annotate src/fftw-3.3.8/rdft/scalar/r2cb/r2cbIII_10.c @ 167:bd3cc4d1df30

Add FFTW 3.3.8 source, and a Linux build

/*
 * 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 Thu May 24 08:07:44 EDT 2018 */

#include "rdft/codelet-rdft.h"

#if defined(ARCH_PREFERS_FMA) || defined(ISA_EXTENSION_PREFERS_FMA)

/* Generated by: ../../../genfft/gen_r2cb.native -fma -compact -variables 4 -pipeline-latency 4 -sign 1 -n 10 -name r2cbIII_10 -dft-III -include rdft/scalar/r2cbIII.h */

/*
 * This function contains 32 FP additions, 28 FP multiplications,
 * (or, 14 additions, 10 multiplications, 18 fused multiply/add),
 * 22 stack variables, 5 constants, and 20 memory accesses
 */
#include "rdft/scalar/r2cbIII.h"

static void r2cbIII_10(R *R0, R *R1, R *Cr, R *Ci, stride rs, stride csr, stride csi, INT v, INT ivs, INT ovs)
{
     DK(KP951056516, +0.951056516295153572116439333379382143405698634);
     DK(KP559016994, +0.559016994374947424102293417182819058860154590);
     DK(KP250000000, +0.250000000000000000000000000000000000000000000);
     DK(KP618033988, +0.618033988749894848204586834365638117720309180);
     DK(KP2_000000000, +2.000000000000000000000000000000000000000000000);
     {
	  INT i;
	  for (i = v; i > 0; i = i - 1, R0 = R0 + ovs, R1 = R1 + ovs, Cr = Cr + ivs, Ci = Ci + ivs, MAKE_VOLATILE_STRIDE(40, rs), MAKE_VOLATILE_STRIDE(40, csr), MAKE_VOLATILE_STRIDE(40, csi)) {
	       E T1, To, T8, Tt, Ta, Ts, Te, Tq, Th, Tn;
	       T1 = Cr[WS(csr, 2)];
	       To = Ci[WS(csi, 2)];
	       {
		    E T2, T3, T4, T5, T6, T7;
		    T2 = Cr[WS(csr, 4)];
		    T3 = Cr[0];
		    T4 = T2 + T3;
		    T5 = Cr[WS(csr, 3)];
		    T6 = Cr[WS(csr, 1)];
		    T7 = T5 + T6;
		    T8 = T4 + T7;
		    Tt = T5 - T6;
		    Ta = T7 - T4;
		    Ts = T2 - T3;
	       }
	       {
		    E Tc, Td, Tl, Tf, Tg, Tm;
		    Tc = Ci[WS(csi, 3)];
		    Td = Ci[WS(csi, 1)];
		    Tl = Tc + Td;
		    Tf = Ci[WS(csi, 4)];
		    Tg = Ci[0];
		    Tm = Tf + Tg;
		    Te = Tc - Td;
		    Tq = Tl + Tm;
		    Th = Tf - Tg;
		    Tn = Tl - Tm;
	       }
	       R0[0] = KP2_000000000 * (T1 + T8);
	       R1[WS(rs, 2)] = KP2_000000000 * (Tn - To);
	       {
		    E Ti, Tk, Tb, Tj, T9;
		    Ti = FMA(KP618033988, Th, Te);
		    Tk = FNMS(KP618033988, Te, Th);
		    T9 = FMS(KP250000000, T8, T1);
		    Tb = FNMS(KP559016994, Ta, T9);
		    Tj = FMA(KP559016994, Ta, T9);
		    R0[WS(rs, 1)] = KP2_000000000 * (FMA(KP951056516, Ti, Tb));
		    R0[WS(rs, 3)] = KP2_000000000 * (FMA(KP951056516, Tk, Tj));
		    R0[WS(rs, 4)] = -(KP2_000000000 * (FNMS(KP951056516, Ti, Tb)));
		    R0[WS(rs, 2)] = -(KP2_000000000 * (FNMS(KP951056516, Tk, Tj)));
	       }
	       {
		    E Tu, Tw, Tr, Tv, Tp;
		    Tu = FMA(KP618033988, Tt, Ts);
		    Tw = FNMS(KP618033988, Ts, Tt);
		    Tp = FMA(KP250000000, Tn, To);
		    Tr = FMA(KP559016994, Tq, Tp);
		    Tv = FNMS(KP559016994, Tq, Tp);
		    R1[0] = -(KP2_000000000 * (FMA(KP951056516, Tu, Tr)));
		    R1[WS(rs, 3)] = KP2_000000000 * (FNMS(KP951056516, Tw, Tv));
		    R1[WS(rs, 4)] = -(KP2_000000000 * (FNMS(KP951056516, Tu, Tr)));
		    R1[WS(rs, 1)] = KP2_000000000 * (FMA(KP951056516, Tw, Tv));
	       }
	  }
     }
}

static const kr2c_desc desc = { 10, "r2cbIII_10", {14, 10, 18, 0}, &GENUS };

void X(codelet_r2cbIII_10) (planner *p) {
     X(kr2c_register) (p, r2cbIII_10, &desc);
}

#else

/* Generated by: ../../../genfft/gen_r2cb.native -compact -variables 4 -pipeline-latency 4 -sign 1 -n 10 -name r2cbIII_10 -dft-III -include rdft/scalar/r2cbIII.h */

/*
 * This function contains 32 FP additions, 16 FP multiplications,
 * (or, 26 additions, 10 multiplications, 6 fused multiply/add),
 * 22 stack variables, 5 constants, and 20 memory accesses
 */
#include "rdft/scalar/r2cbIII.h"

static void r2cbIII_10(R *R0, R *R1, R *Cr, R *Ci, stride rs, stride csr, stride csi, INT v, INT ivs, INT ovs)
{
     DK(KP500000000, +0.500000000000000000000000000000000000000000000);
     DK(KP1_902113032, +1.902113032590307144232878666758764286811397268);
     DK(KP1_175570504, +1.175570504584946258337411909278145537195304875);
     DK(KP2_000000000, +2.000000000000000000000000000000000000000000000);
     DK(KP1_118033988, +1.118033988749894848204586834365638117720309180);
     {
	  INT i;
	  for (i = v; i > 0; i = i - 1, R0 = R0 + ovs, R1 = R1 + ovs, Cr = Cr + ivs, Ci = Ci + ivs, MAKE_VOLATILE_STRIDE(40, rs), MAKE_VOLATILE_STRIDE(40, csr), MAKE_VOLATILE_STRIDE(40, csi)) {
	       E T1, To, T8, Tq, Ta, Tp, Te, Ts, Th, Tn;
	       T1 = Cr[WS(csr, 2)];
	       To = Ci[WS(csi, 2)];
	       {
		    E T2, T3, T4, T5, T6, T7;
		    T2 = Cr[WS(csr, 4)];
		    T3 = Cr[0];
		    T4 = T2 + T3;
		    T5 = Cr[WS(csr, 3)];
		    T6 = Cr[WS(csr, 1)];
		    T7 = T5 + T6;
		    T8 = T4 + T7;
		    Tq = T5 - T6;
		    Ta = KP1_118033988 * (T7 - T4);
		    Tp = T2 - T3;
	       }
	       {
		    E Tc, Td, Tm, Tf, Tg, Tl;
		    Tc = Ci[WS(csi, 4)];
		    Td = Ci[0];
		    Tm = Tc + Td;
		    Tf = Ci[WS(csi, 1)];
		    Tg = Ci[WS(csi, 3)];
		    Tl = Tg + Tf;
		    Te = Tc - Td;
		    Ts = KP1_118033988 * (Tl + Tm);
		    Th = Tf - Tg;
		    Tn = Tl - Tm;
	       }
	       R0[0] = KP2_000000000 * (T1 + T8);
	       R1[WS(rs, 2)] = KP2_000000000 * (Tn - To);
	       {
		    E Ti, Tj, Tb, Tk, T9;
		    Ti = FNMS(KP1_902113032, Th, KP1_175570504 * Te);
		    Tj = FMA(KP1_175570504, Th, KP1_902113032 * Te);
		    T9 = FNMS(KP2_000000000, T1, KP500000000 * T8);
		    Tb = T9 - Ta;
		    Tk = T9 + Ta;
		    R0[WS(rs, 1)] = Tb + Ti;
		    R0[WS(rs, 3)] = Tk + Tj;
		    R0[WS(rs, 4)] = Ti - Tb;
		    R0[WS(rs, 2)] = Tj - Tk;
	       }
	       {
		    E Tr, Tv, Tu, Tw, Tt;
		    Tr = FMA(KP1_902113032, Tp, KP1_175570504 * Tq);
		    Tv = FNMS(KP1_175570504, Tp, KP1_902113032 * Tq);
		    Tt = FMA(KP500000000, Tn, KP2_000000000 * To);
		    Tu = Ts + Tt;
		    Tw = Tt - Ts;
		    R1[0] = -(Tr + Tu);
		    R1[WS(rs, 3)] = Tw - Tv;
		    R1[WS(rs, 4)] = Tr - Tu;
		    R1[WS(rs, 1)] = Tv + Tw;
	       }
	  }
     }
}

static const kr2c_desc desc = { 10, "r2cbIII_10", {26, 10, 6, 0}, &GENUS };

void X(codelet_r2cbIII_10) (planner *p) {
     X(kr2c_register) (p, r2cbIII_10, &desc);
}

#endif