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diff src/fftw-3.3.3/dft/simd/common/n1fv_8.c @ 10:37bf6b4a2645

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Add FFTW3
author Chris Cannam
date Wed, 20 Mar 2013 15:35:50 +0000
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/fftw-3.3.3/dft/simd/common/n1fv_8.c	Wed Mar 20 15:35:50 2013 +0000
@@ -0,0 +1,181 @@
+/*
+ * 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 07:36:52 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 8 -name n1fv_8 -include n1f.h */
+
+/*
+ * This function contains 26 FP additions, 10 FP multiplications,
+ * (or, 16 additions, 0 multiplications, 10 fused multiply/add),
+ * 30 stack variables, 1 constants, and 16 memory accesses
+ */
+#include "n1f.h"
+
+static void n1fv_8(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, INT v, INT ivs, INT ovs)
+{
+     DVK(KP707106781, +0.707106781186547524400844362104849039284835938);
+     {
+	  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(16, is), MAKE_VOLATILE_STRIDE(16, os)) {
+	       V T1, T2, Tc, Td, T4, T5, T7, T8;
+	       T1 = LD(&(xi[0]), ivs, &(xi[0]));
+	       T2 = LD(&(xi[WS(is, 4)]), ivs, &(xi[0]));
+	       Tc = LD(&(xi[WS(is, 2)]), ivs, &(xi[0]));
+	       Td = LD(&(xi[WS(is, 6)]), ivs, &(xi[0]));
+	       T4 = LD(&(xi[WS(is, 1)]), ivs, &(xi[WS(is, 1)]));
+	       T5 = LD(&(xi[WS(is, 5)]), ivs, &(xi[WS(is, 1)]));
+	       T7 = LD(&(xi[WS(is, 7)]), ivs, &(xi[WS(is, 1)]));
+	       T8 = LD(&(xi[WS(is, 3)]), ivs, &(xi[WS(is, 1)]));
+	       {
+		    V T3, Tj, Te, Tk, T6, Tm, T9, Tn, Tp, Tl;
+		    T3 = VSUB(T1, T2);
+		    Tj = VADD(T1, T2);
+		    Te = VSUB(Tc, Td);
+		    Tk = VADD(Tc, Td);
+		    T6 = VSUB(T4, T5);
+		    Tm = VADD(T4, T5);
+		    T9 = VSUB(T7, T8);
+		    Tn = VADD(T7, T8);
+		    Tp = VSUB(Tj, Tk);
+		    Tl = VADD(Tj, Tk);
+		    {
+			 V Tq, To, Ta, Tf;
+			 Tq = VSUB(Tn, Tm);
+			 To = VADD(Tm, Tn);
+			 Ta = VADD(T6, T9);
+			 Tf = VSUB(T9, T6);
+			 {
+			      V Tg, Ti, Tb, Th;
+			      ST(&(xo[0]), VADD(Tl, To), ovs, &(xo[0]));
+			      ST(&(xo[WS(os, 4)]), VSUB(Tl, To), ovs, &(xo[0]));
+			      ST(&(xo[WS(os, 2)]), VFMAI(Tq, Tp), ovs, &(xo[0]));
+			      ST(&(xo[WS(os, 6)]), VFNMSI(Tq, Tp), ovs, &(xo[0]));
+			      Tg = VFNMS(LDK(KP707106781), Tf, Te);
+			      Ti = VFMA(LDK(KP707106781), Tf, Te);
+			      Tb = VFMA(LDK(KP707106781), Ta, T3);
+			      Th = VFNMS(LDK(KP707106781), Ta, T3);
+			      ST(&(xo[WS(os, 3)]), VFMAI(Ti, Th), ovs, &(xo[WS(os, 1)]));
+			      ST(&(xo[WS(os, 5)]), VFNMSI(Ti, Th), ovs, &(xo[WS(os, 1)]));
+			      ST(&(xo[WS(os, 7)]), VFMAI(Tg, Tb), ovs, &(xo[WS(os, 1)]));
+			      ST(&(xo[WS(os, 1)]), VFNMSI(Tg, Tb), ovs, &(xo[WS(os, 1)]));
+			 }
+		    }
+	       }
+	  }
+     }
+     VLEAVE();
+}
+
+static const kdft_desc desc = { 8, XSIMD_STRING("n1fv_8"), {16, 0, 10, 0}, &GENUS, 0, 0, 0, 0 };
+
+void XSIMD(codelet_n1fv_8) (planner *p) {
+     X(kdft_register) (p, n1fv_8, &desc);
+}
+
+#else				/* HAVE_FMA */
+
+/* Generated by: ../../../genfft/gen_notw_c.native -simd -compact -variables 4 -pipeline-latency 8 -n 8 -name n1fv_8 -include n1f.h */
+
+/*
+ * This function contains 26 FP additions, 2 FP multiplications,
+ * (or, 26 additions, 2 multiplications, 0 fused multiply/add),
+ * 22 stack variables, 1 constants, and 16 memory accesses
+ */
+#include "n1f.h"
+
+static void n1fv_8(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, INT v, INT ivs, INT ovs)
+{
+     DVK(KP707106781, +0.707106781186547524400844362104849039284835938);
+     {
+	  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(16, is), MAKE_VOLATILE_STRIDE(16, os)) {
+	       V T3, Tj, Tf, Tk, Ta, Tn, Tc, Tm;
+	       {
+		    V T1, T2, Td, Te;
+		    T1 = LD(&(xi[0]), ivs, &(xi[0]));
+		    T2 = LD(&(xi[WS(is, 4)]), ivs, &(xi[0]));
+		    T3 = VSUB(T1, T2);
+		    Tj = VADD(T1, T2);
+		    Td = LD(&(xi[WS(is, 2)]), ivs, &(xi[0]));
+		    Te = LD(&(xi[WS(is, 6)]), ivs, &(xi[0]));
+		    Tf = VSUB(Td, Te);
+		    Tk = VADD(Td, Te);
+		    {
+			 V T4, T5, T6, T7, T8, T9;
+			 T4 = LD(&(xi[WS(is, 1)]), ivs, &(xi[WS(is, 1)]));
+			 T5 = LD(&(xi[WS(is, 5)]), ivs, &(xi[WS(is, 1)]));
+			 T6 = VSUB(T4, T5);
+			 T7 = LD(&(xi[WS(is, 7)]), ivs, &(xi[WS(is, 1)]));
+			 T8 = LD(&(xi[WS(is, 3)]), ivs, &(xi[WS(is, 1)]));
+			 T9 = VSUB(T7, T8);
+			 Ta = VMUL(LDK(KP707106781), VADD(T6, T9));
+			 Tn = VADD(T7, T8);
+			 Tc = VMUL(LDK(KP707106781), VSUB(T9, T6));
+			 Tm = VADD(T4, T5);
+		    }
+	       }
+	       {
+		    V Tb, Tg, Tp, Tq;
+		    Tb = VADD(T3, Ta);
+		    Tg = VBYI(VSUB(Tc, Tf));
+		    ST(&(xo[WS(os, 7)]), VSUB(Tb, Tg), ovs, &(xo[WS(os, 1)]));
+		    ST(&(xo[WS(os, 1)]), VADD(Tb, Tg), ovs, &(xo[WS(os, 1)]));
+		    Tp = VSUB(Tj, Tk);
+		    Tq = VBYI(VSUB(Tn, Tm));
+		    ST(&(xo[WS(os, 6)]), VSUB(Tp, Tq), ovs, &(xo[0]));
+		    ST(&(xo[WS(os, 2)]), VADD(Tp, Tq), ovs, &(xo[0]));
+	       }
+	       {
+		    V Th, Ti, Tl, To;
+		    Th = VSUB(T3, Ta);
+		    Ti = VBYI(VADD(Tf, Tc));
+		    ST(&(xo[WS(os, 5)]), VSUB(Th, Ti), ovs, &(xo[WS(os, 1)]));
+		    ST(&(xo[WS(os, 3)]), VADD(Th, Ti), ovs, &(xo[WS(os, 1)]));
+		    Tl = VADD(Tj, Tk);
+		    To = VADD(Tm, Tn);
+		    ST(&(xo[WS(os, 4)]), VSUB(Tl, To), ovs, &(xo[0]));
+		    ST(&(xo[0]), VADD(Tl, To), ovs, &(xo[0]));
+	       }
+	  }
+     }
+     VLEAVE();
+}
+
+static const kdft_desc desc = { 8, XSIMD_STRING("n1fv_8"), {26, 2, 0, 0}, &GENUS, 0, 0, 0, 0 };
+
+void XSIMD(codelet_n1fv_8) (planner *p) {
+     X(kdft_register) (p, n1fv_8, &desc);
+}
+
+#endif				/* HAVE_FMA */