diff src/fftw-3.3.3/dft/simd/common/t1sv_2.c @ 10:37bf6b4a2645

Add FFTW3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/fftw-3.3.3/dft/simd/common/t1sv_2.c	Wed Mar 20 15:35:50 2013 +0000
@@ -0,0 +1,122 @@
+/*
+ * 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 07:39:23 EST 2012 */
+
+#include "codelet-dft.h"
+
+#ifdef HAVE_FMA
+
+/* Generated by: ../../../genfft/gen_twiddle.native -fma -reorder-insns -schedule-for-pipeline -simd -compact -variables 4 -pipeline-latency 8 -n 2 -name t1sv_2 -include ts.h */
+
+/*
+ * This function contains 6 FP additions, 4 FP multiplications,
+ * (or, 4 additions, 2 multiplications, 2 fused multiply/add),
+ * 11 stack variables, 0 constants, and 8 memory accesses
+ */
+#include "ts.h"
+
+static void t1sv_2(R *ri, R *ii, const R *W, stride rs, INT mb, INT me, INT ms)
+{
+     {
+	  INT m;
+	  for (m = mb, W = W + (mb * 2); m < me; m = m + (2 * VL), ri = ri + ((2 * VL) * ms), ii = ii + ((2 * VL) * ms), W = W + ((2 * VL) * 2), MAKE_VOLATILE_STRIDE(4, rs)) {
+	       V T1, Ta, T3, T6, T2, T5;
+	       T1 = LD(&(ri[0]), ms, &(ri[0]));
+	       Ta = LD(&(ii[0]), ms, &(ii[0]));
+	       T3 = LD(&(ri[WS(rs, 1)]), ms, &(ri[WS(rs, 1)]));
+	       T6 = LD(&(ii[WS(rs, 1)]), ms, &(ii[WS(rs, 1)]));
+	       T2 = LDW(&(W[0]));
+	       T5 = LDW(&(W[TWVL * 1]));
+	       {
+		    V T8, T4, T9, T7;
+		    T8 = VMUL(T2, T6);
+		    T4 = VMUL(T2, T3);
+		    T9 = VFNMS(T5, T3, T8);
+		    T7 = VFMA(T5, T6, T4);
+		    ST(&(ii[0]), VADD(T9, Ta), ms, &(ii[0]));
+		    ST(&(ii[WS(rs, 1)]), VSUB(Ta, T9), ms, &(ii[WS(rs, 1)]));
+		    ST(&(ri[0]), VADD(T1, T7), ms, &(ri[0]));
+		    ST(&(ri[WS(rs, 1)]), VSUB(T1, T7), ms, &(ri[WS(rs, 1)]));
+	       }
+	  }
+     }
+     VLEAVE();
+}
+
+static const tw_instr twinstr[] = {
+     VTW(0, 1),
+     {TW_NEXT, (2 * VL), 0}
+};
+
+static const ct_desc desc = { 2, XSIMD_STRING("t1sv_2"), twinstr, &GENUS, {4, 2, 2, 0}, 0, 0, 0 };
+
+void XSIMD(codelet_t1sv_2) (planner *p) {
+     X(kdft_dit_register) (p, t1sv_2, &desc);
+}
+#else				/* HAVE_FMA */
+
+/* Generated by: ../../../genfft/gen_twiddle.native -simd -compact -variables 4 -pipeline-latency 8 -n 2 -name t1sv_2 -include ts.h */
+
+/*
+ * This function contains 6 FP additions, 4 FP multiplications,
+ * (or, 4 additions, 2 multiplications, 2 fused multiply/add),
+ * 9 stack variables, 0 constants, and 8 memory accesses
+ */
+#include "ts.h"
+
+static void t1sv_2(R *ri, R *ii, const R *W, stride rs, INT mb, INT me, INT ms)
+{
+     {
+	  INT m;
+	  for (m = mb, W = W + (mb * 2); m < me; m = m + (2 * VL), ri = ri + ((2 * VL) * ms), ii = ii + ((2 * VL) * ms), W = W + ((2 * VL) * 2), MAKE_VOLATILE_STRIDE(4, rs)) {
+	       V T1, T8, T6, T7;
+	       T1 = LD(&(ri[0]), ms, &(ri[0]));
+	       T8 = LD(&(ii[0]), ms, &(ii[0]));
+	       {
+		    V T3, T5, T2, T4;
+		    T3 = LD(&(ri[WS(rs, 1)]), ms, &(ri[WS(rs, 1)]));
+		    T5 = LD(&(ii[WS(rs, 1)]), ms, &(ii[WS(rs, 1)]));
+		    T2 = LDW(&(W[0]));
+		    T4 = LDW(&(W[TWVL * 1]));
+		    T6 = VFMA(T2, T3, VMUL(T4, T5));
+		    T7 = VFNMS(T4, T3, VMUL(T2, T5));
+	       }
+	       ST(&(ri[WS(rs, 1)]), VSUB(T1, T6), ms, &(ri[WS(rs, 1)]));
+	       ST(&(ii[WS(rs, 1)]), VSUB(T8, T7), ms, &(ii[WS(rs, 1)]));
+	       ST(&(ri[0]), VADD(T1, T6), ms, &(ri[0]));
+	       ST(&(ii[0]), VADD(T7, T8), ms, &(ii[0]));
+	  }
+     }
+     VLEAVE();
+}
+
+static const tw_instr twinstr[] = {
+     VTW(0, 1),
+     {TW_NEXT, (2 * VL), 0}
+};
+
+static const ct_desc desc = { 2, XSIMD_STRING("t1sv_2"), twinstr, &GENUS, {4, 2, 2, 0}, 0, 0, 0 };
+
+void XSIMD(codelet_t1sv_2) (planner *p) {
+     X(kdft_dit_register) (p, t1sv_2, &desc);
+}
+#endif				/* HAVE_FMA */