diff src/fftw-3.3.3/rdft/scalar/r2cb/hb2_5.c @ 10:37bf6b4a2645

Add FFTW3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/fftw-3.3.3/rdft/scalar/r2cb/hb2_5.c	Wed Mar 20 15:35:50 2013 +0000
@@ -0,0 +1,280 @@
+/*
+ * 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 07:41:29 EST 2012 */
+
+#include "codelet-rdft.h"
+
+#ifdef HAVE_FMA
+
+/* Generated by: ../../../genfft/gen_hc2hc.native -fma -reorder-insns -schedule-for-pipeline -compact -variables 4 -pipeline-latency 4 -sign 1 -twiddle-log3 -precompute-twiddles -n 5 -dif -name hb2_5 -include hb.h */
+
+/*
+ * This function contains 44 FP additions, 40 FP multiplications,
+ * (or, 14 additions, 10 multiplications, 30 fused multiply/add),
+ * 51 stack variables, 4 constants, and 20 memory accesses
+ */
+#include "hb.h"
+
+static void hb2_5(R *cr, R *ci, const R *W, stride rs, INT mb, INT me, INT ms)
+{
+     DK(KP951056516, +0.951056516295153572116439333379382143405698634);
+     DK(KP559016994, +0.559016994374947424102293417182819058860154590);
+     DK(KP250000000, +0.250000000000000000000000000000000000000000000);
+     DK(KP618033988, +0.618033988749894848204586834365638117720309180);
+     {
+	  INT m;
+	  for (m = mb, W = W + ((mb - 1) * 4); m < me; m = m + 1, cr = cr + ms, ci = ci - ms, W = W + 4, MAKE_VOLATILE_STRIDE(10, rs)) {
+	       E T9, TB, Tz, Tm, T1, TG, TO, TJ, TC, Tn, Tg, To, Tf, Tw, TQ;
+	       E T8, Tb, Th, Ta, Ti, Tp;
+	       T9 = W[0];
+	       TB = W[3];
+	       Tz = W[2];
+	       Tm = W[1];
+	       {
+		    E T4, Tu, T5, T6;
+		    T1 = cr[0];
+		    {
+			 E TF, TA, T2, T3;
+			 TF = T9 * TB;
+			 TA = T9 * Tz;
+			 T2 = cr[WS(rs, 1)];
+			 T3 = ci[0];
+			 TG = FMA(Tm, Tz, TF);
+			 TO = FNMS(Tm, Tz, TF);
+			 TJ = FMA(Tm, TB, TA);
+			 TC = FNMS(Tm, TB, TA);
+			 T4 = T2 + T3;
+			 Tu = T2 - T3;
+			 T5 = cr[WS(rs, 2)];
+			 T6 = ci[WS(rs, 1)];
+		    }
+		    Tn = ci[WS(rs, 4)];
+		    {
+			 E Td, Te, T7, Tv;
+			 Td = ci[WS(rs, 3)];
+			 Te = cr[WS(rs, 4)];
+			 T7 = T5 + T6;
+			 Tv = T5 - T6;
+			 Tg = ci[WS(rs, 2)];
+			 To = Td - Te;
+			 Tf = Td + Te;
+			 Tw = FMA(KP618033988, Tv, Tu);
+			 TQ = FNMS(KP618033988, Tu, Tv);
+			 T8 = T4 + T7;
+			 Tb = T4 - T7;
+			 Th = cr[WS(rs, 3)];
+		    }
+	       }
+	       cr[0] = T1 + T8;
+	       Ta = FNMS(KP250000000, T8, T1);
+	       Ti = Tg + Th;
+	       Tp = Tg - Th;
+	       {
+		    E Tc, TK, Ts, Tq;
+		    Tc = FMA(KP559016994, Tb, Ta);
+		    TK = FNMS(KP559016994, Tb, Ta);
+		    Ts = To - Tp;
+		    Tq = To + Tp;
+		    {
+			 E Tj, TL, Tr, TM, TT;
+			 Tj = FMA(KP618033988, Ti, Tf);
+			 TL = FNMS(KP618033988, Tf, Ti);
+			 ci[0] = Tn + Tq;
+			 Tr = FNMS(KP250000000, Tq, Tn);
+			 TM = FMA(KP951056516, TL, TK);
+			 TT = FNMS(KP951056516, TL, TK);
+			 {
+			      E Tk, TD, Tt, TP;
+			      Tk = FNMS(KP951056516, Tj, Tc);
+			      TD = FMA(KP951056516, Tj, Tc);
+			      Tt = FMA(KP559016994, Ts, Tr);
+			      TP = FNMS(KP559016994, Ts, Tr);
+			      {
+				   E TW, TU, TS, TN;
+				   TW = TB * TT;
+				   TU = Tz * TT;
+				   TS = TO * TM;
+				   TN = TJ * TM;
+				   {
+					E TI, TE, Ty, Tl;
+					TI = TG * TD;
+					TE = TC * TD;
+					Ty = Tm * Tk;
+					Tl = T9 * Tk;
+					{
+					     E TR, TV, Tx, TH;
+					     TR = FNMS(KP951056516, TQ, TP);
+					     TV = FMA(KP951056516, TQ, TP);
+					     Tx = FMA(KP951056516, Tw, Tt);
+					     TH = FNMS(KP951056516, Tw, Tt);
+					     ci[WS(rs, 3)] = FMA(Tz, TV, TW);
+					     cr[WS(rs, 3)] = FNMS(TB, TV, TU);
+					     ci[WS(rs, 2)] = FMA(TJ, TR, TS);
+					     cr[WS(rs, 2)] = FNMS(TO, TR, TN);
+					     ci[WS(rs, 4)] = FMA(TC, TH, TI);
+					     cr[WS(rs, 4)] = FNMS(TG, TH, TE);
+					     ci[WS(rs, 1)] = FMA(T9, Tx, Ty);
+					     cr[WS(rs, 1)] = FNMS(Tm, Tx, Tl);
+					}
+				   }
+			      }
+			 }
+		    }
+	       }
+	  }
+     }
+}
+
+static const tw_instr twinstr[] = {
+     {TW_CEXP, 1, 1},
+     {TW_CEXP, 1, 3},
+     {TW_NEXT, 1, 0}
+};
+
+static const hc2hc_desc desc = { 5, "hb2_5", twinstr, &GENUS, {14, 10, 30, 0} };
+
+void X(codelet_hb2_5) (planner *p) {
+     X(khc2hc_register) (p, hb2_5, &desc);
+}
+#else				/* HAVE_FMA */
+
+/* Generated by: ../../../genfft/gen_hc2hc.native -compact -variables 4 -pipeline-latency 4 -sign 1 -twiddle-log3 -precompute-twiddles -n 5 -dif -name hb2_5 -include hb.h */
+
+/*
+ * This function contains 44 FP additions, 32 FP multiplications,
+ * (or, 30 additions, 18 multiplications, 14 fused multiply/add),
+ * 33 stack variables, 4 constants, and 20 memory accesses
+ */
+#include "hb.h"
+
+static void hb2_5(R *cr, R *ci, const R *W, stride rs, INT mb, INT me, INT ms)
+{
+     DK(KP250000000, +0.250000000000000000000000000000000000000000000);
+     DK(KP587785252, +0.587785252292473129168705954639072768597652438);
+     DK(KP951056516, +0.951056516295153572116439333379382143405698634);
+     DK(KP559016994, +0.559016994374947424102293417182819058860154590);
+     {
+	  INT m;
+	  for (m = mb, W = W + ((mb - 1) * 4); m < me; m = m + 1, cr = cr + ms, ci = ci - ms, W = W + 4, MAKE_VOLATILE_STRIDE(10, rs)) {
+	       E Th, Tk, Ti, Tl, Tn, TP, Tx, TN;
+	       {
+		    E Tj, Tw, Tm, Tv;
+		    Th = W[0];
+		    Tk = W[1];
+		    Ti = W[2];
+		    Tl = W[3];
+		    Tj = Th * Ti;
+		    Tw = Tk * Ti;
+		    Tm = Tk * Tl;
+		    Tv = Th * Tl;
+		    Tn = Tj + Tm;
+		    TP = Tv + Tw;
+		    Tx = Tv - Tw;
+		    TN = Tj - Tm;
+	       }
+	       {
+		    E T1, Tp, TK, TA, T8, To, T9, Tt, TI, TC, Tg, TB;
+		    {
+			 E T4, Ty, T7, Tz;
+			 T1 = cr[0];
+			 {
+			      E T2, T3, T5, T6;
+			      T2 = cr[WS(rs, 1)];
+			      T3 = ci[0];
+			      T4 = T2 + T3;
+			      Ty = T2 - T3;
+			      T5 = cr[WS(rs, 2)];
+			      T6 = ci[WS(rs, 1)];
+			      T7 = T5 + T6;
+			      Tz = T5 - T6;
+			 }
+			 Tp = KP559016994 * (T4 - T7);
+			 TK = FMA(KP951056516, Ty, KP587785252 * Tz);
+			 TA = FNMS(KP951056516, Tz, KP587785252 * Ty);
+			 T8 = T4 + T7;
+			 To = FNMS(KP250000000, T8, T1);
+		    }
+		    {
+			 E Tc, Tr, Tf, Ts;
+			 T9 = ci[WS(rs, 4)];
+			 {
+			      E Ta, Tb, Td, Te;
+			      Ta = ci[WS(rs, 3)];
+			      Tb = cr[WS(rs, 4)];
+			      Tc = Ta - Tb;
+			      Tr = Ta + Tb;
+			      Td = ci[WS(rs, 2)];
+			      Te = cr[WS(rs, 3)];
+			      Tf = Td - Te;
+			      Ts = Td + Te;
+			 }
+			 Tt = FNMS(KP951056516, Ts, KP587785252 * Tr);
+			 TI = FMA(KP951056516, Tr, KP587785252 * Ts);
+			 TC = KP559016994 * (Tc - Tf);
+			 Tg = Tc + Tf;
+			 TB = FNMS(KP250000000, Tg, T9);
+		    }
+		    cr[0] = T1 + T8;
+		    ci[0] = T9 + Tg;
+		    {
+			 E Tu, TF, TE, TG, Tq, TD;
+			 Tq = To - Tp;
+			 Tu = Tq - Tt;
+			 TF = Tq + Tt;
+			 TD = TB - TC;
+			 TE = TA + TD;
+			 TG = TD - TA;
+			 cr[WS(rs, 2)] = FNMS(Tx, TE, Tn * Tu);
+			 ci[WS(rs, 2)] = FMA(Tn, TE, Tx * Tu);
+			 cr[WS(rs, 3)] = FNMS(Tl, TG, Ti * TF);
+			 ci[WS(rs, 3)] = FMA(Ti, TG, Tl * TF);
+		    }
+		    {
+			 E TJ, TO, TM, TQ, TH, TL;
+			 TH = Tp + To;
+			 TJ = TH - TI;
+			 TO = TH + TI;
+			 TL = TC + TB;
+			 TM = TK + TL;
+			 TQ = TL - TK;
+			 cr[WS(rs, 1)] = FNMS(Tk, TM, Th * TJ);
+			 ci[WS(rs, 1)] = FMA(Th, TM, Tk * TJ);
+			 cr[WS(rs, 4)] = FNMS(TP, TQ, TN * TO);
+			 ci[WS(rs, 4)] = FMA(TN, TQ, TP * TO);
+		    }
+	       }
+	  }
+     }
+}
+
+static const tw_instr twinstr[] = {
+     {TW_CEXP, 1, 1},
+     {TW_CEXP, 1, 3},
+     {TW_NEXT, 1, 0}
+};
+
+static const hc2hc_desc desc = { 5, "hb2_5", twinstr, &GENUS, {30, 18, 14, 0} };
+
+void X(codelet_hb2_5) (planner *p) {
+     X(khc2hc_register) (p, hb2_5, &desc);
+}
+#endif				/* HAVE_FMA */