comparison fft/fftw/fftw-3.3.4/rdft/scalar/r2cb/r2cbIII_3.c @ 19:26056e866c29

Add FFTW to comparison table

+/*
+ * 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 13:50:31 EST 2014 */
+
+#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 3 -name r2cbIII_3 -dft-III -include r2cbIII.h */
+
+/*
+ * This function contains 4 FP additions, 3 FP multiplications,
+ * (or, 1 additions, 0 multiplications, 3 fused multiply/add),
+ * 7 stack variables, 2 constants, and 6 memory accesses
+ */
+#include "r2cbIII.h"
+
+static void r2cbIII_3(R *R0, R *R1, R *Cr, R *Ci, stride rs, stride csr, stride csi, INT v, INT ivs, INT ovs)
+{
+     DK(KP1_732050807, +1.732050807568877293527446341505872366942805254);
+     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(12, rs), MAKE_VOLATILE_STRIDE(12, csr), MAKE_VOLATILE_STRIDE(12, csi)) {
+	       E T4, T1, T2, T3;
+	       T4 = Ci[0];
+	       T1 = Cr[WS(csr, 1)];
+	       T2 = Cr[0];
+	       R0[0] = FMA(KP2_000000000, T2, T1);
+	       T3 = T2 - T1;
+	       R1[0] = FNMS(KP1_732050807, T4, T3);
+	       R0[WS(rs, 1)] = -(FMA(KP1_732050807, T4, T3));
+	  }
+     }
+}
+
+static const kr2c_desc desc = { 3, "r2cbIII_3", {1, 0, 3, 0}, &GENUS };
+
+void X(codelet_r2cbIII_3) (planner *p) {
+     X(kr2c_register) (p, r2cbIII_3, &desc);
+}
+
+#else				/* HAVE_FMA */
+
+/* Generated by: ../../../genfft/gen_r2cb.native -compact -variables 4 -pipeline-latency 4 -sign 1 -n 3 -name r2cbIII_3 -dft-III -include r2cbIII.h */
+
+/*
+ * This function contains 4 FP additions, 2 FP multiplications,
+ * (or, 3 additions, 1 multiplications, 1 fused multiply/add),
+ * 8 stack variables, 2 constants, and 6 memory accesses
+ */
+#include "r2cbIII.h"
+
+static void r2cbIII_3(R *R0, R *R1, R *Cr, R *Ci, stride rs, stride csr, stride csi, INT v, INT ivs, INT ovs)
+{
+     DK(KP2_000000000, +2.000000000000000000000000000000000000000000000);
+     DK(KP1_732050807, +1.732050807568877293527446341505872366942805254);
+     {
+	  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(12, rs), MAKE_VOLATILE_STRIDE(12, csr), MAKE_VOLATILE_STRIDE(12, csi)) {
+	       E T5, T1, T2, T3, T4;
+	       T4 = Ci[0];
+	       T5 = KP1_732050807 * T4;
+	       T1 = Cr[WS(csr, 1)];
+	       T2 = Cr[0];
+	       T3 = T2 - T1;
+	       R0[0] = FMA(KP2_000000000, T2, T1);
+	       R0[WS(rs, 1)] = -(T3 + T5);
+	       R1[0] = T3 - T5;
+	  }
+     }
+}
+
+static const kr2c_desc desc = { 3, "r2cbIII_3", {3, 1, 1, 0}, &GENUS };
+
+void X(codelet_r2cbIII_3) (planner *p) {
+     X(kr2c_register) (p, r2cbIII_3, &desc);
+}
+
+#endif				/* HAVE_FMA */