comparison src/fftw-3.3.8/rdft/scalar/r2cf/r2cfII_3.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 08:06:42 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 3 -name r2cfII_3 -dft-II -include rdft/scalar/r2cfII.h */
+
+/*
+ * This function contains 4 FP additions, 2 FP multiplications,
+ * (or, 3 additions, 1 multiplications, 1 fused multiply/add),
+ * 7 stack variables, 2 constants, and 6 memory accesses
+ */
+#include "rdft/scalar/r2cfII.h"
+
+static void r2cfII_3(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(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(12, rs), MAKE_VOLATILE_STRIDE(12, csr), MAKE_VOLATILE_STRIDE(12, csi)) {
+	       E T3, T1, T2, T4;
+	       T3 = R0[0];
+	       T1 = R1[0];
+	       T2 = R0[WS(rs, 1)];
+	       T4 = T2 - T1;
+	       Ci[0] = -(KP866025403 * (T1 + T2));
+	       Cr[0] = FNMS(KP500000000, T4, T3);
+	       Cr[WS(csr, 1)] = T3 + T4;
+	  }
+     }
+}
+
+static const kr2c_desc desc = { 3, "r2cfII_3", {3, 1, 1, 0}, &GENUS };
+
+void X(codelet_r2cfII_3) (planner *p) {
+     X(kr2c_register) (p, r2cfII_3, &desc);
+}
+
+#else
+
+/* Generated by: ../../../genfft/gen_r2cf.native -compact -variables 4 -pipeline-latency 4 -n 3 -name r2cfII_3 -dft-II -include rdft/scalar/r2cfII.h */
+
+/*
+ * This function contains 4 FP additions, 2 FP multiplications,
+ * (or, 3 additions, 1 multiplications, 1 fused multiply/add),
+ * 7 stack variables, 2 constants, and 6 memory accesses
+ */
+#include "rdft/scalar/r2cfII.h"
+
+static void r2cfII_3(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(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(12, rs), MAKE_VOLATILE_STRIDE(12, csr), MAKE_VOLATILE_STRIDE(12, csi)) {
+	       E T1, T2, T3, T4;
+	       T1 = R0[0];
+	       T2 = R1[0];
+	       T3 = R0[WS(rs, 1)];
+	       T4 = T2 - T3;
+	       Cr[WS(csr, 1)] = T1 - T4;
+	       Ci[0] = -(KP866025403 * (T2 + T3));
+	       Cr[0] = FMA(KP500000000, T4, T1);
+	  }
+     }
+}
+
+static const kr2c_desc desc = { 3, "r2cfII_3", {3, 1, 1, 0}, &GENUS };
+
+void X(codelet_r2cfII_3) (planner *p) {
+     X(kr2c_register) (p, r2cfII_3, &desc);
+}
+
+#endif