comparison src/fftw-3.3.3/dft/simd/common/n2fv_2.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 07:37:21 EST 2012 */
+
+#include "codelet-dft.h"
+
+#ifdef HAVE_FMA
+
+/* Generated by: ../../../genfft/gen_notw_c.native -fma -reorder-insns -schedule-for-pipeline -simd -compact -variables 4 -pipeline-latency 8 -n 2 -name n2fv_2 -with-ostride 2 -include n2f.h -store-multiple 2 */
+
+/*
+ * This function contains 2 FP additions, 0 FP multiplications,
+ * (or, 2 additions, 0 multiplications, 0 fused multiply/add),
+ * 7 stack variables, 0 constants, and 5 memory accesses
+ */
+#include "n2f.h"
+
+static void n2fv_2(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, INT v, INT ivs, INT ovs)
+{
+     {
+	  INT i;
+	  const R *xi;
+	  R *xo;
+	  xi = ri;
+	  xo = ro;
+	  for (i = v; i > 0; i = i - VL, xi = xi + (VL * ivs), xo = xo + (VL * ovs), MAKE_VOLATILE_STRIDE(4, is), MAKE_VOLATILE_STRIDE(4, os)) {
+	       V T1, T2, T3, T4;
+	       T1 = LD(&(xi[0]), ivs, &(xi[0]));
+	       T2 = LD(&(xi[WS(is, 1)]), ivs, &(xi[WS(is, 1)]));
+	       T3 = VADD(T1, T2);
+	       STM2(&(xo[0]), T3, ovs, &(xo[0]));
+	       T4 = VSUB(T1, T2);
+	       STM2(&(xo[2]), T4, ovs, &(xo[2]));
+	       STN2(&(xo[0]), T3, T4, ovs);
+	  }
+     }
+     VLEAVE();
+}
+
+static const kdft_desc desc = { 2, XSIMD_STRING("n2fv_2"), {2, 0, 0, 0}, &GENUS, 0, 2, 0, 0 };
+
+void XSIMD(codelet_n2fv_2) (planner *p) {
+     X(kdft_register) (p, n2fv_2, &desc);
+}
+
+#else				/* HAVE_FMA */
+
+/* Generated by: ../../../genfft/gen_notw_c.native -simd -compact -variables 4 -pipeline-latency 8 -n 2 -name n2fv_2 -with-ostride 2 -include n2f.h -store-multiple 2 */
+
+/*
+ * This function contains 2 FP additions, 0 FP multiplications,
+ * (or, 2 additions, 0 multiplications, 0 fused multiply/add),
+ * 7 stack variables, 0 constants, and 5 memory accesses
+ */
+#include "n2f.h"
+
+static void n2fv_2(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, INT v, INT ivs, INT ovs)
+{
+     {
+	  INT i;
+	  const R *xi;
+	  R *xo;
+	  xi = ri;
+	  xo = ro;
+	  for (i = v; i > 0; i = i - VL, xi = xi + (VL * ivs), xo = xo + (VL * ovs), MAKE_VOLATILE_STRIDE(4, is), MAKE_VOLATILE_STRIDE(4, os)) {
+	       V T1, T2, T3, T4;
+	       T1 = LD(&(xi[0]), ivs, &(xi[0]));
+	       T2 = LD(&(xi[WS(is, 1)]), ivs, &(xi[WS(is, 1)]));
+	       T3 = VSUB(T1, T2);
+	       STM2(&(xo[2]), T3, ovs, &(xo[2]));
+	       T4 = VADD(T1, T2);
+	       STM2(&(xo[0]), T4, ovs, &(xo[0]));
+	       STN2(&(xo[0]), T4, T3, ovs);
+	  }
+     }
+     VLEAVE();
+}
+
+static const kdft_desc desc = { 2, XSIMD_STRING("n2fv_2"), {2, 0, 0, 0}, &GENUS, 0, 2, 0, 0 };
+
+void XSIMD(codelet_n2fv_2) (planner *p) {
+     X(kdft_register) (p, n2fv_2, &desc);
+}
+
+#endif				/* HAVE_FMA */