diff src/fftw-3.3.3/rdft/scalar/r2cf/r2cf_12.c @ 10:37bf6b4a2645

Add FFTW3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/fftw-3.3.3/rdft/scalar/r2cf/r2cf_12.c	Wed Mar 20 15:35:50 2013 +0000
@@ -0,0 +1,217 @@
+/*
+ * Copyright (c) 2003, 2007-11 Matteo Frigo
+ * Copyright (c) 2003, 2007-11 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 Sun Nov 25 07:39:46 EST 2012 */
+
+#include "codelet-rdft.h"
+
+#ifdef HAVE_FMA
+
+/* Generated by: ../../../genfft/gen_r2cf.native -fma -reorder-insns -schedule-for-pipeline -compact -variables 4 -pipeline-latency 4 -n 12 -name r2cf_12 -include r2cf.h */
+
+/*
+ * This function contains 38 FP additions, 10 FP multiplications,
+ * (or, 30 additions, 2 multiplications, 8 fused multiply/add),
+ * 31 stack variables, 2 constants, and 24 memory accesses
+ */
+#include "r2cf.h"
+
+static void r2cf_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(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 Tm, T6, Ty, Tp, T5, Tk, Tt, Tb, Tc, Td, T9, Tn;
+	       {
+		    E T1, Tg, Th, Ti, T4, T2, T3, T7, T8, Tj;
+		    T1 = R0[0];
+		    T2 = R0[WS(rs, 2)];
+		    T3 = R0[WS(rs, 4)];
+		    Tg = R1[WS(rs, 1)];
+		    Th = R1[WS(rs, 3)];
+		    Ti = R1[WS(rs, 5)];
+		    T4 = T2 + T3;
+		    Tm = T3 - T2;
+		    T6 = R0[WS(rs, 3)];
+		    Ty = Ti - Th;
+		    Tj = Th + Ti;
+		    Tp = FNMS(KP500000000, T4, T1);
+		    T5 = T1 + T4;
+		    T7 = R0[WS(rs, 5)];
+		    Tk = FNMS(KP500000000, Tj, Tg);
+		    Tt = Tg + Tj;
+		    T8 = R0[WS(rs, 1)];
+		    Tb = R1[WS(rs, 4)];
+		    Tc = R1[0];
+		    Td = R1[WS(rs, 2)];
+		    T9 = T7 + T8;
+		    Tn = T8 - T7;
+	       }
+	       {
+		    E Te, Tz, To, TC;
+		    Te = Tc + Td;
+		    Tz = Td - Tc;
+		    To = Tm - Tn;
+		    TC = Tm + Tn;
+		    {
+			 E Ta, Tq, TA, TB;
+			 Ta = T6 + T9;
+			 Tq = FNMS(KP500000000, T9, T6);
+			 TA = Ty - Tz;
+			 TB = Ty + Tz;
+			 {
+			      E Tf, Tu, Tx, Tr;
+			      Tf = FNMS(KP500000000, Te, Tb);
+			      Tu = Tb + Te;
+			      Tx = Tp - Tq;
+			      Tr = Tp + Tq;
+			      {
+				   E Tv, Tw, Tl, Ts;
+				   Tv = T5 + Ta;
+				   Cr[WS(csr, 3)] = T5 - Ta;
+				   Ci[WS(csi, 4)] = KP866025403 * (TC + TB);
+				   Ci[WS(csi, 2)] = KP866025403 * (TB - TC);
+				   Tw = Tt + Tu;
+				   Ci[WS(csi, 3)] = Tt - Tu;
+				   Tl = Tf - Tk;
+				   Ts = Tk + Tf;
+				   Cr[WS(csr, 1)] = FMA(KP866025403, TA, Tx);
+				   Cr[WS(csr, 5)] = FNMS(KP866025403, TA, Tx);
+				   Cr[0] = Tv + Tw;
+				   Cr[WS(csr, 6)] = Tv - Tw;
+				   Cr[WS(csr, 4)] = Tr + Ts;
+				   Cr[WS(csr, 2)] = Tr - Ts;
+				   Ci[WS(csi, 5)] = FNMS(KP866025403, To, Tl);
+				   Ci[WS(csi, 1)] = FMA(KP866025403, To, Tl);
+			      }
+			 }
+		    }
+	       }
+	  }
+     }
+}
+
+static const kr2c_desc desc = { 12, "r2cf_12", {30, 2, 8, 0}, &GENUS };
+
+void X(codelet_r2cf_12) (planner *p) {
+     X(kr2c_register) (p, r2cf_12, &desc);
+}
+
+#else				/* HAVE_FMA */
+
+/* Generated by: ../../../genfft/gen_r2cf.native -compact -variables 4 -pipeline-latency 4 -n 12 -name r2cf_12 -include r2cf.h */
+
+/*
+ * This function contains 38 FP additions, 8 FP multiplications,
+ * (or, 34 additions, 4 multiplications, 4 fused multiply/add),
+ * 21 stack variables, 2 constants, and 24 memory accesses
+ */
+#include "r2cf.h"
+
+static void r2cf_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(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 T5, Tp, Tb, Tn, Ty, Tt, Ta, Tq, Tc, Ti, Tz, Tu, Td, To;
+	       {
+		    E T1, T2, T3, T4;
+		    T1 = R0[0];
+		    T2 = R0[WS(rs, 2)];
+		    T3 = R0[WS(rs, 4)];
+		    T4 = T2 + T3;
+		    T5 = T1 + T4;
+		    Tp = FNMS(KP500000000, T4, T1);
+		    Tb = T3 - T2;
+	       }
+	       {
+		    E Tj, Tk, Tl, Tm;
+		    Tj = R1[WS(rs, 1)];
+		    Tk = R1[WS(rs, 3)];
+		    Tl = R1[WS(rs, 5)];
+		    Tm = Tk + Tl;
+		    Tn = FNMS(KP500000000, Tm, Tj);
+		    Ty = Tl - Tk;
+		    Tt = Tj + Tm;
+	       }
+	       {
+		    E T6, T7, T8, T9;
+		    T6 = R0[WS(rs, 3)];
+		    T7 = R0[WS(rs, 5)];
+		    T8 = R0[WS(rs, 1)];
+		    T9 = T7 + T8;
+		    Ta = T6 + T9;
+		    Tq = FNMS(KP500000000, T9, T6);
+		    Tc = T8 - T7;
+	       }
+	       {
+		    E Te, Tf, Tg, Th;
+		    Te = R1[WS(rs, 4)];
+		    Tf = R1[0];
+		    Tg = R1[WS(rs, 2)];
+		    Th = Tf + Tg;
+		    Ti = FNMS(KP500000000, Th, Te);
+		    Tz = Tg - Tf;
+		    Tu = Te + Th;
+	       }
+	       Cr[WS(csr, 3)] = T5 - Ta;
+	       Ci[WS(csi, 3)] = Tt - Tu;
+	       Td = KP866025403 * (Tb - Tc);
+	       To = Ti - Tn;
+	       Ci[WS(csi, 1)] = Td + To;
+	       Ci[WS(csi, 5)] = To - Td;
+	       {
+		    E Tx, TA, Tv, Tw;
+		    Tx = Tp - Tq;
+		    TA = KP866025403 * (Ty - Tz);
+		    Cr[WS(csr, 5)] = Tx - TA;
+		    Cr[WS(csr, 1)] = Tx + TA;
+		    Tv = T5 + Ta;
+		    Tw = Tt + Tu;
+		    Cr[WS(csr, 6)] = Tv - Tw;
+		    Cr[0] = Tv + Tw;
+	       }
+	       {
+		    E Tr, Ts, TB, TC;
+		    Tr = Tp + Tq;
+		    Ts = Tn + Ti;
+		    Cr[WS(csr, 2)] = Tr - Ts;
+		    Cr[WS(csr, 4)] = Tr + Ts;
+		    TB = Ty + Tz;
+		    TC = Tb + Tc;
+		    Ci[WS(csi, 2)] = KP866025403 * (TB - TC);
+		    Ci[WS(csi, 4)] = KP866025403 * (TC + TB);
+	       }
+	  }
+     }
+}
+
+static const kr2c_desc desc = { 12, "r2cf_12", {34, 4, 4, 0}, &GENUS };
+
+void X(codelet_r2cf_12) (planner *p) {
+     X(kr2c_register) (p, r2cf_12, &desc);
+}
+
+#endif				/* HAVE_FMA */