Mercurial > hg > sv-dependency-builds

diff src/fftw-3.3.3/dft/scalar/codelets/n1_8.c @ 95:89f5e221ed7b

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Add FFTW3
author Chris Cannam <cannam@all-day-breakfast.com>
date Wed, 20 Mar 2013 15:35:50 +0000
parents
children
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/fftw-3.3.3/dft/scalar/codelets/n1_8.c	Wed Mar 20 15:35:50 2013 +0000
@@ -0,0 +1,268 @@
+/*
+ * 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 07:35:42 EST 2012 */
+
+#include "codelet-dft.h"
+
+#ifdef HAVE_FMA
+
+/* Generated by: ../../../genfft/gen_notw.native -fma -reorder-insns -schedule-for-pipeline -compact -variables 4 -pipeline-latency 4 -n 8 -name n1_8 -include n.h */
+
+/*
+ * This function contains 52 FP additions, 8 FP multiplications,
+ * (or, 44 additions, 0 multiplications, 8 fused multiply/add),
+ * 36 stack variables, 1 constants, and 32 memory accesses
+ */
+#include "n.h"
+
+static void n1_8(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, INT v, INT ivs, INT ovs)
+{
+     DK(KP707106781, +0.707106781186547524400844362104849039284835938);
+     {
+	  INT i;
+	  for (i = v; i > 0; i = i - 1, ri = ri + ivs, ii = ii + ivs, ro = ro + ovs, io = io + ovs, MAKE_VOLATILE_STRIDE(32, is), MAKE_VOLATILE_STRIDE(32, os)) {
+	       E TF, TE, TD, TI;
+	       {
+		    E Tn, T3, TC, Ti, TB, T6, To, Tl, Td, TN, Tz, TH, Ta, Tq, Tt;
+		    E TM;
+		    {
+			 E T4, T5, Tj, Tk;
+			 {
+			      E T1, T2, Tg, Th;
+			      T1 = ri[0];
+			      T2 = ri[WS(is, 4)];
+			      Tg = ii[0];
+			      Th = ii[WS(is, 4)];
+			      T4 = ri[WS(is, 2)];
+			      Tn = T1 - T2;
+			      T3 = T1 + T2;
+			      TC = Tg - Th;
+			      Ti = Tg + Th;
+			      T5 = ri[WS(is, 6)];
+			 }
+			 Tj = ii[WS(is, 2)];
+			 Tk = ii[WS(is, 6)];
+			 {
+			      E Tb, Tc, Tw, Tx;
+			      Tb = ri[WS(is, 7)];
+			      TB = T4 - T5;
+			      T6 = T4 + T5;
+			      To = Tj - Tk;
+			      Tl = Tj + Tk;
+			      Tc = ri[WS(is, 3)];
+			      Tw = ii[WS(is, 7)];
+			      Tx = ii[WS(is, 3)];
+			      {
+				   E T8, Tv, Ty, T9, Tr, Ts;
+				   T8 = ri[WS(is, 1)];
+				   Td = Tb + Tc;
+				   Tv = Tb - Tc;
+				   TN = Tw + Tx;
+				   Ty = Tw - Tx;
+				   T9 = ri[WS(is, 5)];
+				   Tr = ii[WS(is, 1)];
+				   Ts = ii[WS(is, 5)];
+				   Tz = Tv - Ty;
+				   TH = Tv + Ty;
+				   Ta = T8 + T9;
+				   Tq = T8 - T9;
+				   Tt = Tr - Ts;
+				   TM = Tr + Ts;
+			      }
+			 }
+		    }
+		    {
+			 E TL, TG, Tu, Tf, Tm, TO;
+			 {
+			      E T7, Te, TP, TQ;
+			      TL = T3 - T6;
+			      T7 = T3 + T6;
+			      TG = Tt - Tq;
+			      Tu = Tq + Tt;
+			      Te = Ta + Td;
+			      Tf = Td - Ta;
+			      Tm = Ti - Tl;
+			      TP = Ti + Tl;
+			      TQ = TM + TN;
+			      TO = TM - TN;
+			      ro[0] = T7 + Te;
+			      ro[WS(os, 4)] = T7 - Te;
+			      io[0] = TP + TQ;
+			      io[WS(os, 4)] = TP - TQ;
+			 }
+			 {
+			      E Tp, TA, TJ, TK;
+			      TF = Tn - To;
+			      Tp = Tn + To;
+			      io[WS(os, 6)] = Tm - Tf;
+			      io[WS(os, 2)] = Tf + Tm;
+			      ro[WS(os, 2)] = TL + TO;
+			      ro[WS(os, 6)] = TL - TO;
+			      TA = Tu + Tz;
+			      TE = Tz - Tu;
+			      TD = TB + TC;
+			      TJ = TC - TB;
+			      TK = TG + TH;
+			      TI = TG - TH;
+			      ro[WS(os, 1)] = FMA(KP707106781, TA, Tp);
+			      ro[WS(os, 5)] = FNMS(KP707106781, TA, Tp);
+			      io[WS(os, 1)] = FMA(KP707106781, TK, TJ);
+			      io[WS(os, 5)] = FNMS(KP707106781, TK, TJ);
+			 }
+		    }
+	       }
+	       io[WS(os, 3)] = FMA(KP707106781, TE, TD);
+	       io[WS(os, 7)] = FNMS(KP707106781, TE, TD);
+	       ro[WS(os, 3)] = FMA(KP707106781, TI, TF);
+	       ro[WS(os, 7)] = FNMS(KP707106781, TI, TF);
+	  }
+     }
+}
+
+static const kdft_desc desc = { 8, "n1_8", {44, 0, 8, 0}, &GENUS, 0, 0, 0, 0 };
+
+void X(codelet_n1_8) (planner *p) {
+     X(kdft_register) (p, n1_8, &desc);
+}
+
+#else				/* HAVE_FMA */
+
+/* Generated by: ../../../genfft/gen_notw.native -compact -variables 4 -pipeline-latency 4 -n 8 -name n1_8 -include n.h */
+
+/*
+ * This function contains 52 FP additions, 4 FP multiplications,
+ * (or, 52 additions, 4 multiplications, 0 fused multiply/add),
+ * 28 stack variables, 1 constants, and 32 memory accesses
+ */
+#include "n.h"
+
+static void n1_8(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, INT v, INT ivs, INT ovs)
+{
+     DK(KP707106781, +0.707106781186547524400844362104849039284835938);
+     {
+	  INT i;
+	  for (i = v; i > 0; i = i - 1, ri = ri + ivs, ii = ii + ivs, ro = ro + ovs, io = io + ovs, MAKE_VOLATILE_STRIDE(32, is), MAKE_VOLATILE_STRIDE(32, os)) {
+	       E T3, Tn, Ti, TC, T6, TB, Tl, To, Td, TN, Tz, TH, Ta, TM, Tu;
+	       E TG;
+	       {
+		    E T1, T2, Tj, Tk;
+		    T1 = ri[0];
+		    T2 = ri[WS(is, 4)];
+		    T3 = T1 + T2;
+		    Tn = T1 - T2;
+		    {
+			 E Tg, Th, T4, T5;
+			 Tg = ii[0];
+			 Th = ii[WS(is, 4)];
+			 Ti = Tg + Th;
+			 TC = Tg - Th;
+			 T4 = ri[WS(is, 2)];
+			 T5 = ri[WS(is, 6)];
+			 T6 = T4 + T5;
+			 TB = T4 - T5;
+		    }
+		    Tj = ii[WS(is, 2)];
+		    Tk = ii[WS(is, 6)];
+		    Tl = Tj + Tk;
+		    To = Tj - Tk;
+		    {
+			 E Tb, Tc, Tv, Tw, Tx, Ty;
+			 Tb = ri[WS(is, 7)];
+			 Tc = ri[WS(is, 3)];
+			 Tv = Tb - Tc;
+			 Tw = ii[WS(is, 7)];
+			 Tx = ii[WS(is, 3)];
+			 Ty = Tw - Tx;
+			 Td = Tb + Tc;
+			 TN = Tw + Tx;
+			 Tz = Tv - Ty;
+			 TH = Tv + Ty;
+		    }
+		    {
+			 E T8, T9, Tq, Tr, Ts, Tt;
+			 T8 = ri[WS(is, 1)];
+			 T9 = ri[WS(is, 5)];
+			 Tq = T8 - T9;
+			 Tr = ii[WS(is, 1)];
+			 Ts = ii[WS(is, 5)];
+			 Tt = Tr - Ts;
+			 Ta = T8 + T9;
+			 TM = Tr + Ts;
+			 Tu = Tq + Tt;
+			 TG = Tt - Tq;
+		    }
+	       }
+	       {
+		    E T7, Te, TP, TQ;
+		    T7 = T3 + T6;
+		    Te = Ta + Td;
+		    ro[WS(os, 4)] = T7 - Te;
+		    ro[0] = T7 + Te;
+		    TP = Ti + Tl;
+		    TQ = TM + TN;
+		    io[WS(os, 4)] = TP - TQ;
+		    io[0] = TP + TQ;
+	       }
+	       {
+		    E Tf, Tm, TL, TO;
+		    Tf = Td - Ta;
+		    Tm = Ti - Tl;
+		    io[WS(os, 2)] = Tf + Tm;
+		    io[WS(os, 6)] = Tm - Tf;
+		    TL = T3 - T6;
+		    TO = TM - TN;
+		    ro[WS(os, 6)] = TL - TO;
+		    ro[WS(os, 2)] = TL + TO;
+	       }
+	       {
+		    E Tp, TA, TJ, TK;
+		    Tp = Tn + To;
+		    TA = KP707106781 * (Tu + Tz);
+		    ro[WS(os, 5)] = Tp - TA;
+		    ro[WS(os, 1)] = Tp + TA;
+		    TJ = TC - TB;
+		    TK = KP707106781 * (TG + TH);
+		    io[WS(os, 5)] = TJ - TK;
+		    io[WS(os, 1)] = TJ + TK;
+	       }
+	       {
+		    E TD, TE, TF, TI;
+		    TD = TB + TC;
+		    TE = KP707106781 * (Tz - Tu);
+		    io[WS(os, 7)] = TD - TE;
+		    io[WS(os, 3)] = TD + TE;
+		    TF = Tn - To;
+		    TI = KP707106781 * (TG - TH);
+		    ro[WS(os, 7)] = TF - TI;
+		    ro[WS(os, 3)] = TF + TI;
+	       }
+	  }
+     }
+}
+
+static const kdft_desc desc = { 8, "n1_8", {52, 4, 0, 0}, &GENUS, 0, 0, 0, 0 };
+
+void X(codelet_n1_8) (planner *p) {
+     X(kdft_register) (p, n1_8, &desc);
+}
+
+#endif				/* HAVE_FMA */