diff src/fftw-3.3.5/dft/simd/common/n2sv_4.c @ 42:2cd0e3b3e1fd

Current fftw source

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/fftw-3.3.5/dft/simd/common/n2sv_4.c	Tue Oct 18 13:40:26 2016 +0100
@@ -0,0 +1,171 @@
+/*
+ * Copyright (c) 2003, 2007-14 Matteo Frigo
+ * Copyright (c) 2003, 2007-14 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 Sat Jul 30 16:41:20 EDT 2016 */
+
+#include "codelet-dft.h"
+
+#ifdef HAVE_FMA
+
+/* Generated by: ../../../genfft/gen_notw.native -fma -reorder-insns -schedule-for-pipeline -simd -compact -variables 4 -pipeline-latency 8 -n 4 -name n2sv_4 -with-ostride 1 -include n2s.h -store-multiple 4 */
+
+/*
+ * This function contains 16 FP additions, 0 FP multiplications,
+ * (or, 16 additions, 0 multiplications, 0 fused multiply/add),
+ * 25 stack variables, 0 constants, and 18 memory accesses
+ */
+#include "n2s.h"
+
+static void n2sv_4(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, INT v, INT ivs, INT ovs)
+{
+     {
+	  INT i;
+	  for (i = v; i > 0; i = i - (2 * VL), ri = ri + ((2 * VL) * ivs), ii = ii + ((2 * VL) * ivs), ro = ro + ((2 * VL) * ovs), io = io + ((2 * VL) * ovs), MAKE_VOLATILE_STRIDE(16, is), MAKE_VOLATILE_STRIDE(16, os)) {
+	       V T1, T2, T7, T8, T4, T5, Tc, Td;
+	       T1 = LD(&(ri[0]), ivs, &(ri[0]));
+	       T2 = LD(&(ri[WS(is, 2)]), ivs, &(ri[0]));
+	       T7 = LD(&(ii[0]), ivs, &(ii[0]));
+	       T8 = LD(&(ii[WS(is, 2)]), ivs, &(ii[0]));
+	       T4 = LD(&(ri[WS(is, 1)]), ivs, &(ri[WS(is, 1)]));
+	       T5 = LD(&(ri[WS(is, 3)]), ivs, &(ri[WS(is, 1)]));
+	       Tc = LD(&(ii[WS(is, 1)]), ivs, &(ii[WS(is, 1)]));
+	       Td = LD(&(ii[WS(is, 3)]), ivs, &(ii[WS(is, 1)]));
+	       {
+		    V T3, Tb, T9, Tf, T6, Ta, Te, Tg;
+		    T3 = VADD(T1, T2);
+		    Tb = VSUB(T1, T2);
+		    T9 = VSUB(T7, T8);
+		    Tf = VADD(T7, T8);
+		    T6 = VADD(T4, T5);
+		    Ta = VSUB(T4, T5);
+		    Te = VSUB(Tc, Td);
+		    Tg = VADD(Tc, Td);
+		    {
+			 V Th, Ti, Tj, Tk;
+			 Th = VADD(Ta, T9);
+			 STM4(&(io[3]), Th, ovs, &(io[1]));
+			 Ti = VSUB(T9, Ta);
+			 STM4(&(io[1]), Ti, ovs, &(io[1]));
+			 Tj = VADD(T3, T6);
+			 STM4(&(ro[0]), Tj, ovs, &(ro[0]));
+			 Tk = VSUB(T3, T6);
+			 STM4(&(ro[2]), Tk, ovs, &(ro[0]));
+			 {
+			      V Tl, Tm, Tn, To;
+			      Tl = VADD(Tf, Tg);
+			      STM4(&(io[0]), Tl, ovs, &(io[0]));
+			      Tm = VSUB(Tf, Tg);
+			      STM4(&(io[2]), Tm, ovs, &(io[0]));
+			      STN4(&(io[0]), Tl, Ti, Tm, Th, ovs);
+			      Tn = VSUB(Tb, Te);
+			      STM4(&(ro[3]), Tn, ovs, &(ro[1]));
+			      To = VADD(Tb, Te);
+			      STM4(&(ro[1]), To, ovs, &(ro[1]));
+			      STN4(&(ro[0]), Tj, To, Tk, Tn, ovs);
+			 }
+		    }
+	       }
+	  }
+     }
+     VLEAVE();
+}
+
+static const kdft_desc desc = { 4, XSIMD_STRING("n2sv_4"), {16, 0, 0, 0}, &GENUS, 0, 1, 0, 0 };
+
+void XSIMD(codelet_n2sv_4) (planner *p) {
+     X(kdft_register) (p, n2sv_4, &desc);
+}
+
+#else				/* HAVE_FMA */
+
+/* Generated by: ../../../genfft/gen_notw.native -simd -compact -variables 4 -pipeline-latency 8 -n 4 -name n2sv_4 -with-ostride 1 -include n2s.h -store-multiple 4 */
+
+/*
+ * This function contains 16 FP additions, 0 FP multiplications,
+ * (or, 16 additions, 0 multiplications, 0 fused multiply/add),
+ * 17 stack variables, 0 constants, and 18 memory accesses
+ */
+#include "n2s.h"
+
+static void n2sv_4(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, INT v, INT ivs, INT ovs)
+{
+     {
+	  INT i;
+	  for (i = v; i > 0; i = i - (2 * VL), ri = ri + ((2 * VL) * ivs), ii = ii + ((2 * VL) * ivs), ro = ro + ((2 * VL) * ovs), io = io + ((2 * VL) * ovs), MAKE_VOLATILE_STRIDE(16, is), MAKE_VOLATILE_STRIDE(16, os)) {
+	       V T3, Tb, T9, Tf, T6, Ta, Te, Tg;
+	       {
+		    V T1, T2, T7, T8;
+		    T1 = LD(&(ri[0]), ivs, &(ri[0]));
+		    T2 = LD(&(ri[WS(is, 2)]), ivs, &(ri[0]));
+		    T3 = VADD(T1, T2);
+		    Tb = VSUB(T1, T2);
+		    T7 = LD(&(ii[0]), ivs, &(ii[0]));
+		    T8 = LD(&(ii[WS(is, 2)]), ivs, &(ii[0]));
+		    T9 = VSUB(T7, T8);
+		    Tf = VADD(T7, T8);
+	       }
+	       {
+		    V T4, T5, Tc, Td;
+		    T4 = LD(&(ri[WS(is, 1)]), ivs, &(ri[WS(is, 1)]));
+		    T5 = LD(&(ri[WS(is, 3)]), ivs, &(ri[WS(is, 1)]));
+		    T6 = VADD(T4, T5);
+		    Ta = VSUB(T4, T5);
+		    Tc = LD(&(ii[WS(is, 1)]), ivs, &(ii[WS(is, 1)]));
+		    Td = LD(&(ii[WS(is, 3)]), ivs, &(ii[WS(is, 1)]));
+		    Te = VSUB(Tc, Td);
+		    Tg = VADD(Tc, Td);
+	       }
+	       {
+		    V Th, Ti, Tj, Tk;
+		    Th = VSUB(T3, T6);
+		    STM4(&(ro[2]), Th, ovs, &(ro[0]));
+		    Ti = VSUB(Tf, Tg);
+		    STM4(&(io[2]), Ti, ovs, &(io[0]));
+		    Tj = VADD(T3, T6);
+		    STM4(&(ro[0]), Tj, ovs, &(ro[0]));
+		    Tk = VADD(Tf, Tg);
+		    STM4(&(io[0]), Tk, ovs, &(io[0]));
+		    {
+			 V Tl, Tm, Tn, To;
+			 Tl = VSUB(T9, Ta);
+			 STM4(&(io[1]), Tl, ovs, &(io[1]));
+			 Tm = VADD(Tb, Te);
+			 STM4(&(ro[1]), Tm, ovs, &(ro[1]));
+			 Tn = VADD(Ta, T9);
+			 STM4(&(io[3]), Tn, ovs, &(io[1]));
+			 STN4(&(io[0]), Tk, Tl, Ti, Tn, ovs);
+			 To = VSUB(Tb, Te);
+			 STM4(&(ro[3]), To, ovs, &(ro[1]));
+			 STN4(&(ro[0]), Tj, Tm, Th, To, ovs);
+		    }
+	       }
+	  }
+     }
+     VLEAVE();
+}
+
+static const kdft_desc desc = { 4, XSIMD_STRING("n2sv_4"), {16, 0, 0, 0}, &GENUS, 0, 1, 0, 0 };
+
+void XSIMD(codelet_n2sv_4) (planner *p) {
+     X(kdft_register) (p, n2sv_4, &desc);
+}
+
+#endif				/* HAVE_FMA */