diff src/fftw-3.3.3/rdft/scalar/r2cf/r2cf_5.c @ 95:89f5e221ed7b

Add FFTW3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/fftw-3.3.3/rdft/scalar/r2cf/r2cf_5.c	Wed Mar 20 15:35:50 2013 +0000
@@ -0,0 +1,128 @@
+/*
+ * 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 07:39:45 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 5 -name r2cf_5 -include r2cf.h */
+
+/*
+ * This function contains 12 FP additions, 7 FP multiplications,
+ * (or, 7 additions, 2 multiplications, 5 fused multiply/add),
+ * 17 stack variables, 4 constants, and 10 memory accesses
+ */
+#include "r2cf.h"
+
+static void r2cf_5(R *R0, R *R1, R *Cr, R *Ci, stride rs, stride csr, stride csi, INT v, INT ivs, INT ovs)
+{
+     DK(KP559016994, +0.559016994374947424102293417182819058860154590);
+     DK(KP250000000, +0.250000000000000000000000000000000000000000000);
+     DK(KP618033988, +0.618033988749894848204586834365638117720309180);
+     DK(KP951056516, +0.951056516295153572116439333379382143405698634);
+     {
+	  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(20, rs), MAKE_VOLATILE_STRIDE(20, csr), MAKE_VOLATILE_STRIDE(20, csi)) {
+	       E T7, T1, T2, T4, T5;
+	       T7 = R0[0];
+	       T1 = R0[WS(rs, 2)];
+	       T2 = R1[0];
+	       T4 = R0[WS(rs, 1)];
+	       T5 = R1[WS(rs, 1)];
+	       {
+		    E T3, T8, T6, T9, Tc, Ta, Tb;
+		    T3 = T1 - T2;
+		    T8 = T2 + T1;
+		    T6 = T4 - T5;
+		    T9 = T4 + T5;
+		    Ci[WS(csi, 2)] = KP951056516 * (FMA(KP618033988, T3, T6));
+		    Ci[WS(csi, 1)] = KP951056516 * (FNMS(KP618033988, T6, T3));
+		    Tc = T8 - T9;
+		    Ta = T8 + T9;
+		    Tb = FNMS(KP250000000, Ta, T7);
+		    Cr[0] = T7 + Ta;
+		    Cr[WS(csr, 2)] = FNMS(KP559016994, Tc, Tb);
+		    Cr[WS(csr, 1)] = FMA(KP559016994, Tc, Tb);
+	       }
+	  }
+     }
+}
+
+static const kr2c_desc desc = { 5, "r2cf_5", {7, 2, 5, 0}, &GENUS };
+
+void X(codelet_r2cf_5) (planner *p) {
+     X(kr2c_register) (p, r2cf_5, &desc);
+}
+
+#else				/* HAVE_FMA */
+
+/* Generated by: ../../../genfft/gen_r2cf.native -compact -variables 4 -pipeline-latency 4 -n 5 -name r2cf_5 -include r2cf.h */
+
+/*
+ * This function contains 12 FP additions, 6 FP multiplications,
+ * (or, 9 additions, 3 multiplications, 3 fused multiply/add),
+ * 17 stack variables, 4 constants, and 10 memory accesses
+ */
+#include "r2cf.h"
+
+static void r2cf_5(R *R0, R *R1, R *Cr, R *Ci, stride rs, stride csr, stride csi, INT v, INT ivs, INT ovs)
+{
+     DK(KP250000000, +0.250000000000000000000000000000000000000000000);
+     DK(KP559016994, +0.559016994374947424102293417182819058860154590);
+     DK(KP587785252, +0.587785252292473129168705954639072768597652438);
+     DK(KP951056516, +0.951056516295153572116439333379382143405698634);
+     {
+	  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(20, rs), MAKE_VOLATILE_STRIDE(20, csr), MAKE_VOLATILE_STRIDE(20, csi)) {
+	       E Ta, T7, T8, T3, Tb, T6, T9, Tc;
+	       Ta = R0[0];
+	       {
+		    E T1, T2, T4, T5;
+		    T1 = R0[WS(rs, 2)];
+		    T2 = R1[0];
+		    T7 = T2 + T1;
+		    T4 = R0[WS(rs, 1)];
+		    T5 = R1[WS(rs, 1)];
+		    T8 = T4 + T5;
+		    T3 = T1 - T2;
+		    Tb = T7 + T8;
+		    T6 = T4 - T5;
+	       }
+	       Ci[WS(csi, 1)] = FNMS(KP587785252, T6, KP951056516 * T3);
+	       Cr[0] = Ta + Tb;
+	       Ci[WS(csi, 2)] = FMA(KP587785252, T3, KP951056516 * T6);
+	       T9 = KP559016994 * (T7 - T8);
+	       Tc = FNMS(KP250000000, Tb, Ta);
+	       Cr[WS(csr, 1)] = T9 + Tc;
+	       Cr[WS(csr, 2)] = Tc - T9;
+	  }
+     }
+}
+
+static const kr2c_desc desc = { 5, "r2cf_5", {9, 3, 3, 0}, &GENUS };
+
+void X(codelet_r2cf_5) (planner *p) {
+     X(kr2c_register) (p, r2cf_5, &desc);
+}
+
+#endif				/* HAVE_FMA */