diff src/fftw-3.3.3/dft/simd/common/t3bv_4.c @ 10:37bf6b4a2645

Add FFTW3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/fftw-3.3.3/dft/simd/common/t3bv_4.c	Wed Mar 20 15:35:50 2013 +0000
@@ -0,0 +1,144 @@
+/*
+ * 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 07:39:18 EST 2012 */
+
+#include "codelet-dft.h"
+
+#ifdef HAVE_FMA
+
+/* Generated by: ../../../genfft/gen_twiddle_c.native -fma -reorder-insns -schedule-for-pipeline -simd -compact -variables 4 -pipeline-latency 8 -twiddle-log3 -precompute-twiddles -no-generate-bytw -n 4 -name t3bv_4 -include t3b.h -sign 1 */
+
+/*
+ * This function contains 12 FP additions, 10 FP multiplications,
+ * (or, 10 additions, 8 multiplications, 2 fused multiply/add),
+ * 16 stack variables, 0 constants, and 8 memory accesses
+ */
+#include "t3b.h"
+
+static void t3bv_4(R *ri, R *ii, const R *W, stride rs, INT mb, INT me, INT ms)
+{
+     {
+	  INT m;
+	  R *x;
+	  x = ii;
+	  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(4, rs)) {
+	       V T2, T3, T1, Ta, T5, T8;
+	       T2 = LDW(&(W[0]));
+	       T3 = LDW(&(W[TWVL * 2]));
+	       T1 = LD(&(x[0]), ms, &(x[0]));
+	       Ta = LD(&(x[WS(rs, 3)]), ms, &(x[WS(rs, 1)]));
+	       T5 = LD(&(x[WS(rs, 2)]), ms, &(x[0]));
+	       T8 = LD(&(x[WS(rs, 1)]), ms, &(x[WS(rs, 1)]));
+	       {
+		    V T4, Tb, T9, T6;
+		    T4 = VZMULJ(T2, T3);
+		    Tb = VZMUL(T3, Ta);
+		    T9 = VZMUL(T2, T8);
+		    T6 = VZMUL(T4, T5);
+		    {
+			 V Tc, Te, T7, Td;
+			 Tc = VSUB(T9, Tb);
+			 Te = VADD(T9, Tb);
+			 T7 = VSUB(T1, T6);
+			 Td = VADD(T1, T6);
+			 ST(&(x[0]), VADD(Td, Te), ms, &(x[0]));
+			 ST(&(x[WS(rs, 2)]), VSUB(Td, Te), ms, &(x[0]));
+			 ST(&(x[WS(rs, 1)]), VFMAI(Tc, T7), ms, &(x[WS(rs, 1)]));
+			 ST(&(x[WS(rs, 3)]), VFNMSI(Tc, T7), ms, &(x[WS(rs, 1)]));
+		    }
+	       }
+	  }
+     }
+     VLEAVE();
+}
+
+static const tw_instr twinstr[] = {
+     VTW(0, 1),
+     VTW(0, 3),
+     {TW_NEXT, VL, 0}
+};
+
+static const ct_desc desc = { 4, XSIMD_STRING("t3bv_4"), twinstr, &GENUS, {10, 8, 2, 0}, 0, 0, 0 };
+
+void XSIMD(codelet_t3bv_4) (planner *p) {
+     X(kdft_dit_register) (p, t3bv_4, &desc);
+}
+#else				/* HAVE_FMA */
+
+/* Generated by: ../../../genfft/gen_twiddle_c.native -simd -compact -variables 4 -pipeline-latency 8 -twiddle-log3 -precompute-twiddles -no-generate-bytw -n 4 -name t3bv_4 -include t3b.h -sign 1 */
+
+/*
+ * This function contains 12 FP additions, 8 FP multiplications,
+ * (or, 12 additions, 8 multiplications, 0 fused multiply/add),
+ * 16 stack variables, 0 constants, and 8 memory accesses
+ */
+#include "t3b.h"
+
+static void t3bv_4(R *ri, R *ii, const R *W, stride rs, INT mb, INT me, INT ms)
+{
+     {
+	  INT m;
+	  R *x;
+	  x = ii;
+	  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(4, rs)) {
+	       V T2, T3, T4;
+	       T2 = LDW(&(W[0]));
+	       T3 = LDW(&(W[TWVL * 2]));
+	       T4 = VZMULJ(T2, T3);
+	       {
+		    V T1, Tb, T6, T9, Ta, T5, T8;
+		    T1 = LD(&(x[0]), ms, &(x[0]));
+		    Ta = LD(&(x[WS(rs, 3)]), ms, &(x[WS(rs, 1)]));
+		    Tb = VZMUL(T3, Ta);
+		    T5 = LD(&(x[WS(rs, 2)]), ms, &(x[0]));
+		    T6 = VZMUL(T4, T5);
+		    T8 = LD(&(x[WS(rs, 1)]), ms, &(x[WS(rs, 1)]));
+		    T9 = VZMUL(T2, T8);
+		    {
+			 V T7, Tc, Td, Te;
+			 T7 = VSUB(T1, T6);
+			 Tc = VBYI(VSUB(T9, Tb));
+			 ST(&(x[WS(rs, 3)]), VSUB(T7, Tc), ms, &(x[WS(rs, 1)]));
+			 ST(&(x[WS(rs, 1)]), VADD(T7, Tc), ms, &(x[WS(rs, 1)]));
+			 Td = VADD(T1, T6);
+			 Te = VADD(T9, Tb);
+			 ST(&(x[WS(rs, 2)]), VSUB(Td, Te), ms, &(x[0]));
+			 ST(&(x[0]), VADD(Td, Te), ms, &(x[0]));
+		    }
+	       }
+	  }
+     }
+     VLEAVE();
+}
+
+static const tw_instr twinstr[] = {
+     VTW(0, 1),
+     VTW(0, 3),
+     {TW_NEXT, VL, 0}
+};
+
+static const ct_desc desc = { 4, XSIMD_STRING("t3bv_4"), twinstr, &GENUS, {12, 8, 0, 0}, 0, 0, 0 };
+
+void XSIMD(codelet_t3bv_4) (planner *p) {
+     X(kdft_dit_register) (p, t3bv_4, &desc);
+}
+#endif				/* HAVE_FMA */