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diff src/fftw-3.3.8/rdft/scalar/r2cf/r2cfII_12.c @ 167:bd3cc4d1df30

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Add FFTW 3.3.8 source, and a Linux build
author Chris Cannam <cannam@all-day-breakfast.com>
date Tue, 19 Nov 2019 14:52:55 +0000
parents
children
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/fftw-3.3.8/rdft/scalar/r2cf/r2cfII_12.c	Tue Nov 19 14:52:55 2019 +0000
@@ -0,0 +1,227 @@
+/*
+ * 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 08:06:43 EDT 2018 */
+
+#include "rdft/codelet-rdft.h"
+
+#if defined(ARCH_PREFERS_FMA) || defined(ISA_EXTENSION_PREFERS_FMA)
+
+/* Generated by: ../../../genfft/gen_r2cf.native -fma -compact -variables 4 -pipeline-latency 4 -n 12 -name r2cfII_12 -dft-II -include rdft/scalar/r2cfII.h */
+
+/*
+ * This function contains 45 FP additions, 24 FP multiplications,
+ * (or, 21 additions, 0 multiplications, 24 fused multiply/add),
+ * 28 stack variables, 3 constants, and 24 memory accesses
+ */
+#include "rdft/scalar/r2cfII.h"
+
+static void r2cfII_12(R *R0, R *R1, R *Cr, R *Ci, stride rs, stride csr, stride csi, INT v, INT ivs, INT ovs)
+{
+     DK(KP866025403, +0.866025403784438646763723170752936183471402627);
+     DK(KP707106781, +0.707106781186547524400844362104849039284835938);
+     DK(KP500000000, +0.500000000000000000000000000000000000000000000);
+     {
+	  INT i;
+	  for (i = v; i > 0; i = i - 1, R0 = R0 + ivs, R1 = R1 + ivs, Cr = Cr + ovs, Ci = Ci + ovs, MAKE_VOLATILE_STRIDE(48, rs), MAKE_VOLATILE_STRIDE(48, csr), MAKE_VOLATILE_STRIDE(48, csi)) {
+	       E Tx, Ty, T8, Tz, Tl, Tm, Tv, T5, TA, Tt, Te, Tf, Tu, T6, T7;
+	       E Tw, TF, TG;
+	       Tx = R0[WS(rs, 3)];
+	       T6 = R0[WS(rs, 5)];
+	       T7 = R0[WS(rs, 1)];
+	       Ty = T6 + T7;
+	       T8 = T6 - T7;
+	       Tz = FMA(KP500000000, Ty, Tx);
+	       {
+		    E Th, Ti, Tj, Tk;
+		    Th = R1[WS(rs, 4)];
+		    Ti = R1[WS(rs, 2)];
+		    Tj = R1[0];
+		    Tk = Ti - Tj;
+		    Tl = FMA(KP500000000, Tk, Th);
+		    Tm = Ti + Tj;
+		    Tv = Ti - Tj - Th;
+	       }
+	       {
+		    E T1, T2, T3, T4;
+		    T1 = R0[0];
+		    T2 = R0[WS(rs, 2)];
+		    T3 = R0[WS(rs, 4)];
+		    T4 = T2 - T3;
+		    T5 = FMA(KP500000000, T4, T1);
+		    TA = T3 + T2;
+		    Tt = T1 + T3 - T2;
+	       }
+	       {
+		    E Ta, Tb, Tc, Td;
+		    Ta = R1[WS(rs, 1)];
+		    Tb = R1[WS(rs, 3)];
+		    Tc = R1[WS(rs, 5)];
+		    Td = Tb - Tc;
+		    Te = FMA(KP500000000, Td, Ta);
+		    Tf = Tc + Tb;
+		    Tu = Ta + Tc - Tb;
+	       }
+	       Tw = Tu + Tv;
+	       Cr[WS(csr, 1)] = FNMS(KP707106781, Tw, Tt);
+	       Cr[WS(csr, 4)] = FMA(KP707106781, Tw, Tt);
+	       TF = Tx - Ty;
+	       TG = Tv - Tu;
+	       Ci[WS(csi, 4)] = FMS(KP707106781, TG, TF);
+	       Ci[WS(csi, 1)] = FMA(KP707106781, TG, TF);
+	       {
+		    E T9, TD, To, TE, Tg, Tn;
+		    T9 = FNMS(KP866025403, T8, T5);
+		    TD = FNMS(KP866025403, TA, Tz);
+		    Tg = FNMS(KP866025403, Tf, Te);
+		    Tn = FNMS(KP866025403, Tm, Tl);
+		    To = Tg - Tn;
+		    TE = Tg + Tn;
+		    Cr[WS(csr, 5)] = FNMS(KP707106781, To, T9);
+		    Ci[WS(csi, 3)] = FMA(KP707106781, TE, TD);
+		    Cr[0] = FMA(KP707106781, To, T9);
+		    Ci[WS(csi, 2)] = FMS(KP707106781, TE, TD);
+	       }
+	       {
+		    E Tp, TB, Ts, TC, Tq, Tr;
+		    Tp = FMA(KP866025403, T8, T5);
+		    TB = FMA(KP866025403, TA, Tz);
+		    Tq = FMA(KP866025403, Tm, Tl);
+		    Tr = FMA(KP866025403, Tf, Te);
+		    Ts = Tq - Tr;
+		    TC = Tr + Tq;
+		    Cr[WS(csr, 3)] = FNMS(KP707106781, Ts, Tp);
+		    Ci[WS(csi, 5)] = FNMS(KP707106781, TC, TB);
+		    Cr[WS(csr, 2)] = FMA(KP707106781, Ts, Tp);
+		    Ci[0] = -(FMA(KP707106781, TC, TB));
+	       }
+	  }
+     }
+}
+
+static const kr2c_desc desc = { 12, "r2cfII_12", {21, 0, 24, 0}, &GENUS };
+
+void X(codelet_r2cfII_12) (planner *p) {
+     X(kr2c_register) (p, r2cfII_12, &desc);
+}
+
+#else
+
+/* Generated by: ../../../genfft/gen_r2cf.native -compact -variables 4 -pipeline-latency 4 -n 12 -name r2cfII_12 -dft-II -include rdft/scalar/r2cfII.h */
+
+/*
+ * This function contains 43 FP additions, 12 FP multiplications,
+ * (or, 39 additions, 8 multiplications, 4 fused multiply/add),
+ * 28 stack variables, 5 constants, and 24 memory accesses
+ */
+#include "rdft/scalar/r2cfII.h"
+
+static void r2cfII_12(R *R0, R *R1, R *Cr, R *Ci, stride rs, stride csr, stride csi, INT v, INT ivs, INT ovs)
+{
+     DK(KP353553390, +0.353553390593273762200422181052424519642417969);
+     DK(KP707106781, +0.707106781186547524400844362104849039284835938);
+     DK(KP612372435, +0.612372435695794524549321018676472847991486870);
+     DK(KP500000000, +0.500000000000000000000000000000000000000000000);
+     DK(KP866025403, +0.866025403784438646763723170752936183471402627);
+     {
+	  INT i;
+	  for (i = v; i > 0; i = i - 1, R0 = R0 + ivs, R1 = R1 + ivs, Cr = Cr + ovs, Ci = Ci + ovs, MAKE_VOLATILE_STRIDE(48, rs), MAKE_VOLATILE_STRIDE(48, csr), MAKE_VOLATILE_STRIDE(48, csi)) {
+	       E Tx, Tg, T4, Tz, Ty, Tj, TA, T9, Tm, Tl, Te, Tp, To, Tf, TE;
+	       E TF;
+	       {
+		    E T1, T3, T2, Th, Ti;
+		    T1 = R0[0];
+		    T3 = R0[WS(rs, 2)];
+		    T2 = R0[WS(rs, 4)];
+		    Tx = KP866025403 * (T2 + T3);
+		    Tg = FMA(KP500000000, T3 - T2, T1);
+		    T4 = T1 + T2 - T3;
+		    Tz = R0[WS(rs, 3)];
+		    Th = R0[WS(rs, 5)];
+		    Ti = R0[WS(rs, 1)];
+		    Ty = Th + Ti;
+		    Tj = KP866025403 * (Th - Ti);
+		    TA = FMA(KP500000000, Ty, Tz);
+	       }
+	       {
+		    E T5, T6, T7, T8;
+		    T5 = R1[WS(rs, 1)];
+		    T6 = R1[WS(rs, 5)];
+		    T7 = R1[WS(rs, 3)];
+		    T8 = T6 - T7;
+		    T9 = T5 + T8;
+		    Tm = KP612372435 * (T6 + T7);
+		    Tl = FNMS(KP353553390, T8, KP707106781 * T5);
+	       }
+	       {
+		    E Td, Ta, Tb, Tc;
+		    Td = R1[WS(rs, 4)];
+		    Ta = R1[WS(rs, 2)];
+		    Tb = R1[0];
+		    Tc = Ta - Tb;
+		    Te = Tc - Td;
+		    Tp = FMA(KP353553390, Tc, KP707106781 * Td);
+		    To = KP612372435 * (Ta + Tb);
+	       }
+	       Tf = KP707106781 * (T9 + Te);
+	       Cr[WS(csr, 1)] = T4 - Tf;
+	       Cr[WS(csr, 4)] = T4 + Tf;
+	       TE = KP707106781 * (Te - T9);
+	       TF = Tz - Ty;
+	       Ci[WS(csi, 4)] = TE - TF;
+	       Ci[WS(csi, 1)] = TE + TF;
+	       {
+		    E Tk, TB, Tr, Tw, Tn, Tq;
+		    Tk = Tg - Tj;
+		    TB = Tx - TA;
+		    Tn = Tl - Tm;
+		    Tq = To - Tp;
+		    Tr = Tn + Tq;
+		    Tw = Tn - Tq;
+		    Cr[WS(csr, 5)] = Tk - Tr;
+		    Ci[WS(csi, 2)] = Tw + TB;
+		    Cr[0] = Tk + Tr;
+		    Ci[WS(csi, 3)] = Tw - TB;
+	       }
+	       {
+		    E Ts, TD, Tv, TC, Tt, Tu;
+		    Ts = Tg + Tj;
+		    TD = Tx + TA;
+		    Tt = To + Tp;
+		    Tu = Tm + Tl;
+		    Tv = Tt - Tu;
+		    TC = Tu + Tt;
+		    Cr[WS(csr, 3)] = Ts - Tv;
+		    Ci[WS(csi, 5)] = TD - TC;
+		    Cr[WS(csr, 2)] = Ts + Tv;
+		    Ci[0] = -(TC + TD);
+	       }
+	  }
+     }
+}
+
+static const kr2c_desc desc = { 12, "r2cfII_12", {39, 8, 4, 0}, &GENUS };
+
+void X(codelet_r2cfII_12) (planner *p) {
+     X(kr2c_register) (p, r2cfII_12, &desc);
+}
+
+#endif