comparison src/fftw-3.3.3/rdft/scalar/r2cb/r2cb_8.c @ 10:37bf6b4a2645

Add FFTW3

+/*
+ * 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 07:41:07 EST 2012 */
+
+#include "codelet-rdft.h"
+
+#ifdef HAVE_FMA
+
+/* Generated by: ../../../genfft/gen_r2cb.native -fma -reorder-insns -schedule-for-pipeline -compact -variables 4 -pipeline-latency 4 -sign 1 -n 8 -name r2cb_8 -include r2cb.h */
+
+/*
+ * This function contains 20 FP additions, 12 FP multiplications,
+ * (or, 8 additions, 0 multiplications, 12 fused multiply/add),
+ * 19 stack variables, 2 constants, and 16 memory accesses
+ */
+#include "r2cb.h"
+
+static void r2cb_8(R *R0, R *R1, R *Cr, R *Ci, stride rs, stride csr, stride csi, INT v, INT ivs, INT ovs)
+{
+     DK(KP1_414213562, +1.414213562373095048801688724209698078569671875);
+     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(32, rs), MAKE_VOLATILE_STRIDE(32, csr), MAKE_VOLATILE_STRIDE(32, csi)) {
+	       E Th, Tb, Tg, Ti;
+	       {
+		    E T4, Ta, Td, T9, T3, Tc, T8, Te;
+		    T4 = Cr[WS(csr, 2)];
+		    Ta = Ci[WS(csi, 2)];
+		    {
+			 E T1, T2, T6, T7;
+			 T1 = Cr[0];
+			 T2 = Cr[WS(csr, 4)];
+			 T6 = Cr[WS(csr, 1)];
+			 T7 = Cr[WS(csr, 3)];
+			 Td = Ci[WS(csi, 1)];
+			 T9 = T1 - T2;
+			 T3 = T1 + T2;
+			 Tc = T6 - T7;
+			 T8 = T6 + T7;
+			 Te = Ci[WS(csi, 3)];
+		    }
+		    {
+			 E Tj, T5, Tk, Tf;
+			 Tj = FNMS(KP2_000000000, T4, T3);
+			 T5 = FMA(KP2_000000000, T4, T3);
+			 Th = FMA(KP2_000000000, Ta, T9);
+			 Tb = FNMS(KP2_000000000, Ta, T9);
+			 Tk = Td - Te;
+			 Tf = Td + Te;
+			 R0[0] = FMA(KP2_000000000, T8, T5);
+			 R0[WS(rs, 2)] = FNMS(KP2_000000000, T8, T5);
+			 R0[WS(rs, 3)] = FMA(KP2_000000000, Tk, Tj);
+			 R0[WS(rs, 1)] = FNMS(KP2_000000000, Tk, Tj);
+			 Tg = Tc - Tf;
+			 Ti = Tc + Tf;
+		    }
+	       }
+	       R1[0] = FMA(KP1_414213562, Tg, Tb);
+	       R1[WS(rs, 2)] = FNMS(KP1_414213562, Tg, Tb);
+	       R1[WS(rs, 3)] = FMA(KP1_414213562, Ti, Th);
+	       R1[WS(rs, 1)] = FNMS(KP1_414213562, Ti, Th);
+	  }
+     }
+}
+
+static const kr2c_desc desc = { 8, "r2cb_8", {8, 0, 12, 0}, &GENUS };
+
+void X(codelet_r2cb_8) (planner *p) {
+     X(kr2c_register) (p, r2cb_8, &desc);
+}
+
+#else				/* HAVE_FMA */
+
+/* Generated by: ../../../genfft/gen_r2cb.native -compact -variables 4 -pipeline-latency 4 -sign 1 -n 8 -name r2cb_8 -include r2cb.h */
+
+/*
+ * This function contains 20 FP additions, 6 FP multiplications,
+ * (or, 20 additions, 6 multiplications, 0 fused multiply/add),
+ * 21 stack variables, 2 constants, and 16 memory accesses
+ */
+#include "r2cb.h"
+
+static void r2cb_8(R *R0, R *R1, R *Cr, R *Ci, stride rs, stride csr, stride csi, INT v, INT ivs, INT ovs)
+{
+     DK(KP1_414213562, +1.414213562373095048801688724209698078569671875);
+     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(32, rs), MAKE_VOLATILE_STRIDE(32, csr), MAKE_VOLATILE_STRIDE(32, csi)) {
+	       E T5, Tg, T3, Te, T9, Ti, Td, Tj, T6, Ta;
+	       {
+		    E T4, Tf, T1, T2;
+		    T4 = Cr[WS(csr, 2)];
+		    T5 = KP2_000000000 * T4;
+		    Tf = Ci[WS(csi, 2)];
+		    Tg = KP2_000000000 * Tf;
+		    T1 = Cr[0];
+		    T2 = Cr[WS(csr, 4)];
+		    T3 = T1 + T2;
+		    Te = T1 - T2;
+		    {
+			 E T7, T8, Tb, Tc;
+			 T7 = Cr[WS(csr, 1)];
+			 T8 = Cr[WS(csr, 3)];
+			 T9 = KP2_000000000 * (T7 + T8);
+			 Ti = T7 - T8;
+			 Tb = Ci[WS(csi, 1)];
+			 Tc = Ci[WS(csi, 3)];
+			 Td = KP2_000000000 * (Tb - Tc);
+			 Tj = Tb + Tc;
+		    }
+	       }
+	       T6 = T3 + T5;
+	       R0[WS(rs, 2)] = T6 - T9;
+	       R0[0] = T6 + T9;
+	       Ta = T3 - T5;
+	       R0[WS(rs, 1)] = Ta - Td;
+	       R0[WS(rs, 3)] = Ta + Td;
+	       {
+		    E Th, Tk, Tl, Tm;
+		    Th = Te - Tg;
+		    Tk = KP1_414213562 * (Ti - Tj);
+		    R1[WS(rs, 2)] = Th - Tk;
+		    R1[0] = Th + Tk;
+		    Tl = Te + Tg;
+		    Tm = KP1_414213562 * (Ti + Tj);
+		    R1[WS(rs, 1)] = Tl - Tm;
+		    R1[WS(rs, 3)] = Tl + Tm;
+	       }
+	  }
+     }
+}
+
+static const kr2c_desc desc = { 8, "r2cb_8", {20, 6, 0, 0}, &GENUS };
+
+void X(codelet_r2cb_8) (planner *p) {
+     X(kr2c_register) (p, r2cb_8, &desc);
+}
+
+#endif				/* HAVE_FMA */