comparison src/fftw-3.3.8/dft/simd/common/t1fv_3.c @ 167:bd3cc4d1df30

Add FFTW 3.3.8 source, and a Linux build

+/*
+ * 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 Thu May 24 08:05:26 EDT 2018 */
+
+#include "dft/codelet-dft.h"
+
+#if defined(ARCH_PREFERS_FMA) || defined(ISA_EXTENSION_PREFERS_FMA)
+
+/* Generated by: ../../../genfft/gen_twiddle_c.native -fma -simd -compact -variables 4 -pipeline-latency 8 -n 3 -name t1fv_3 -include dft/simd/t1f.h */
+
+/*
+ * This function contains 8 FP additions, 8 FP multiplications,
+ * (or, 5 additions, 5 multiplications, 3 fused multiply/add),
+ * 12 stack variables, 2 constants, and 6 memory accesses
+ */
+#include "dft/simd/t1f.h"
+
+static void t1fv_3(R *ri, R *ii, const R *W, stride rs, INT mb, INT me, INT ms)
+{
+     DVK(KP866025403, +0.866025403784438646763723170752936183471402627);
+     DVK(KP500000000, +0.500000000000000000000000000000000000000000000);
+     {
+	  INT m;
+	  R *x;
+	  x = ri;
+	  for (m = mb, W = W + (mb * ((TWVL / VL) * 4)); m < me; m = m + VL, x = x + (VL * ms), W = W + (TWVL * 4), MAKE_VOLATILE_STRIDE(3, rs)) {
+	       V T1, T3, T5, T6, T2, T4, T7, T8;
+	       T1 = LD(&(x[0]), ms, &(x[0]));
+	       T2 = LD(&(x[WS(rs, 1)]), ms, &(x[WS(rs, 1)]));
+	       T3 = BYTWJ(&(W[0]), T2);
+	       T4 = LD(&(x[WS(rs, 2)]), ms, &(x[0]));
+	       T5 = BYTWJ(&(W[TWVL * 2]), T4);
+	       T6 = VADD(T3, T5);
+	       ST(&(x[0]), VADD(T1, T6), ms, &(x[0]));
+	       T7 = VFNMS(LDK(KP500000000), T6, T1);
+	       T8 = VMUL(LDK(KP866025403), VSUB(T5, T3));
+	       ST(&(x[WS(rs, 2)]), VFNMSI(T8, T7), ms, &(x[0]));
+	       ST(&(x[WS(rs, 1)]), VFMAI(T8, T7), ms, &(x[WS(rs, 1)]));
+	  }
+     }
+     VLEAVE();
+}
+
+static const tw_instr twinstr[] = {
+     VTW(0, 1),
+     VTW(0, 2),
+     {TW_NEXT, VL, 0}
+};
+
+static const ct_desc desc = { 3, XSIMD_STRING("t1fv_3"), twinstr, &GENUS, {5, 5, 3, 0}, 0, 0, 0 };
+
+void XSIMD(codelet_t1fv_3) (planner *p) {
+     X(kdft_dit_register) (p, t1fv_3, &desc);
+}
+#else
+
+/* Generated by: ../../../genfft/gen_twiddle_c.native -simd -compact -variables 4 -pipeline-latency 8 -n 3 -name t1fv_3 -include dft/simd/t1f.h */
+
+/*
+ * This function contains 8 FP additions, 6 FP multiplications,
+ * (or, 7 additions, 5 multiplications, 1 fused multiply/add),
+ * 12 stack variables, 2 constants, and 6 memory accesses
+ */
+#include "dft/simd/t1f.h"
+
+static void t1fv_3(R *ri, R *ii, const R *W, stride rs, INT mb, INT me, INT ms)
+{
+     DVK(KP866025403, +0.866025403784438646763723170752936183471402627);
+     DVK(KP500000000, +0.500000000000000000000000000000000000000000000);
+     {
+	  INT m;
+	  R *x;
+	  x = ri;
+	  for (m = mb, W = W + (mb * ((TWVL / VL) * 4)); m < me; m = m + VL, x = x + (VL * ms), W = W + (TWVL * 4), MAKE_VOLATILE_STRIDE(3, rs)) {
+	       V T1, T3, T5, T6, T2, T4, T7, T8;
+	       T1 = LD(&(x[0]), ms, &(x[0]));
+	       T2 = LD(&(x[WS(rs, 1)]), ms, &(x[WS(rs, 1)]));
+	       T3 = BYTWJ(&(W[0]), T2);
+	       T4 = LD(&(x[WS(rs, 2)]), ms, &(x[0]));
+	       T5 = BYTWJ(&(W[TWVL * 2]), T4);
+	       T6 = VADD(T3, T5);
+	       ST(&(x[0]), VADD(T1, T6), ms, &(x[0]));
+	       T7 = VFNMS(LDK(KP500000000), T6, T1);
+	       T8 = VBYI(VMUL(LDK(KP866025403), VSUB(T5, T3)));
+	       ST(&(x[WS(rs, 2)]), VSUB(T7, T8), ms, &(x[0]));
+	       ST(&(x[WS(rs, 1)]), VADD(T7, T8), ms, &(x[WS(rs, 1)]));
+	  }
+     }
+     VLEAVE();
+}
+
+static const tw_instr twinstr[] = {
+     VTW(0, 1),
+     VTW(0, 2),
+     {TW_NEXT, VL, 0}
+};
+
+static const ct_desc desc = { 3, XSIMD_STRING("t1fv_3"), twinstr, &GENUS, {7, 5, 1, 0}, 0, 0, 0 };
+
+void XSIMD(codelet_t1fv_3) (planner *p) {
+     X(kdft_dit_register) (p, t1fv_3, &desc);
+}
+#endif