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diff src/fftw-3.3.3/dft/simd/common/t1buv_6.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/t1buv_6.c	Wed Mar 20 15:35:50 2013 +0000
@@ -0,0 +1,182 @@
+/*
+ * 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 07:39:02 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 -n 6 -name t1buv_6 -include t1bu.h -sign 1 */
+
+/*
+ * This function contains 23 FP additions, 18 FP multiplications,
+ * (or, 17 additions, 12 multiplications, 6 fused multiply/add),
+ * 27 stack variables, 2 constants, and 12 memory accesses
+ */
+#include "t1bu.h"
+
+static void t1buv_6(R *ri, R *ii, const R *W, stride rs, INT mb, INT me, INT ms)
+{
+     DVK(KP500000000, +0.500000000000000000000000000000000000000000000);
+     DVK(KP866025403, +0.866025403784438646763723170752936183471402627);
+     {
+	  INT m;
+	  R *x;
+	  x = ii;
+	  for (m = mb, W = W + (mb * ((TWVL / VL) * 10)); m < me; m = m + VL, x = x + (VL * ms), W = W + (TWVL * 10), MAKE_VOLATILE_STRIDE(6, rs)) {
+	       V T1, T2, Ta, Tc, T5, T7;
+	       T1 = LD(&(x[0]), ms, &(x[0]));
+	       T2 = LD(&(x[WS(rs, 3)]), ms, &(x[WS(rs, 1)]));
+	       Ta = LD(&(x[WS(rs, 4)]), ms, &(x[0]));
+	       Tc = LD(&(x[WS(rs, 1)]), ms, &(x[WS(rs, 1)]));
+	       T5 = LD(&(x[WS(rs, 2)]), ms, &(x[0]));
+	       T7 = LD(&(x[WS(rs, 5)]), ms, &(x[WS(rs, 1)]));
+	       {
+		    V T3, Tb, Td, T6, T8;
+		    T3 = BYTW(&(W[TWVL * 4]), T2);
+		    Tb = BYTW(&(W[TWVL * 6]), Ta);
+		    Td = BYTW(&(W[0]), Tc);
+		    T6 = BYTW(&(W[TWVL * 2]), T5);
+		    T8 = BYTW(&(W[TWVL * 8]), T7);
+		    {
+			 V Ti, T4, Tk, Te, Tj, T9;
+			 Ti = VADD(T1, T3);
+			 T4 = VSUB(T1, T3);
+			 Tk = VADD(Tb, Td);
+			 Te = VSUB(Tb, Td);
+			 Tj = VADD(T6, T8);
+			 T9 = VSUB(T6, T8);
+			 {
+			      V Tl, Tn, Tf, Th, Tm, Tg;
+			      Tl = VADD(Tj, Tk);
+			      Tn = VMUL(LDK(KP866025403), VSUB(Tj, Tk));
+			      Tf = VADD(T9, Te);
+			      Th = VMUL(LDK(KP866025403), VSUB(T9, Te));
+			      ST(&(x[0]), VADD(Ti, Tl), ms, &(x[0]));
+			      Tm = VFNMS(LDK(KP500000000), Tl, Ti);
+			      ST(&(x[WS(rs, 3)]), VADD(T4, Tf), ms, &(x[WS(rs, 1)]));
+			      Tg = VFNMS(LDK(KP500000000), Tf, T4);
+			      ST(&(x[WS(rs, 4)]), VFMAI(Tn, Tm), ms, &(x[0]));
+			      ST(&(x[WS(rs, 2)]), VFNMSI(Tn, Tm), ms, &(x[0]));
+			      ST(&(x[WS(rs, 5)]), VFNMSI(Th, Tg), ms, &(x[WS(rs, 1)]));
+			      ST(&(x[WS(rs, 1)]), VFMAI(Th, Tg), ms, &(x[WS(rs, 1)]));
+			 }
+		    }
+	       }
+	  }
+     }
+     VLEAVE();
+}
+
+static const tw_instr twinstr[] = {
+     VTW(0, 1),
+     VTW(0, 2),
+     VTW(0, 3),
+     VTW(0, 4),
+     VTW(0, 5),
+     {TW_NEXT, VL, 0}
+};
+
+static const ct_desc desc = { 6, XSIMD_STRING("t1buv_6"), twinstr, &GENUS, {17, 12, 6, 0}, 0, 0, 0 };
+
+void XSIMD(codelet_t1buv_6) (planner *p) {
+     X(kdft_dit_register) (p, t1buv_6, &desc);
+}
+#else				/* HAVE_FMA */
+
+/* Generated by: ../../../genfft/gen_twiddle_c.native -simd -compact -variables 4 -pipeline-latency 8 -n 6 -name t1buv_6 -include t1bu.h -sign 1 */
+
+/*
+ * This function contains 23 FP additions, 14 FP multiplications,
+ * (or, 21 additions, 12 multiplications, 2 fused multiply/add),
+ * 19 stack variables, 2 constants, and 12 memory accesses
+ */
+#include "t1bu.h"
+
+static void t1buv_6(R *ri, R *ii, const R *W, stride rs, INT mb, INT me, INT ms)
+{
+     DVK(KP500000000, +0.500000000000000000000000000000000000000000000);
+     DVK(KP866025403, +0.866025403784438646763723170752936183471402627);
+     {
+	  INT m;
+	  R *x;
+	  x = ii;
+	  for (m = mb, W = W + (mb * ((TWVL / VL) * 10)); m < me; m = m + VL, x = x + (VL * ms), W = W + (TWVL * 10), MAKE_VOLATILE_STRIDE(6, rs)) {
+	       V Tf, Ti, Ta, Tk, T5, Tj, Tc, Te, Td;
+	       Tc = LD(&(x[0]), ms, &(x[0]));
+	       Td = LD(&(x[WS(rs, 3)]), ms, &(x[WS(rs, 1)]));
+	       Te = BYTW(&(W[TWVL * 4]), Td);
+	       Tf = VSUB(Tc, Te);
+	       Ti = VADD(Tc, Te);
+	       {
+		    V T7, T9, T6, T8;
+		    T6 = LD(&(x[WS(rs, 4)]), ms, &(x[0]));
+		    T7 = BYTW(&(W[TWVL * 6]), T6);
+		    T8 = LD(&(x[WS(rs, 1)]), ms, &(x[WS(rs, 1)]));
+		    T9 = BYTW(&(W[0]), T8);
+		    Ta = VSUB(T7, T9);
+		    Tk = VADD(T7, T9);
+	       }
+	       {
+		    V T2, T4, T1, T3;
+		    T1 = LD(&(x[WS(rs, 2)]), ms, &(x[0]));
+		    T2 = BYTW(&(W[TWVL * 2]), T1);
+		    T3 = LD(&(x[WS(rs, 5)]), ms, &(x[WS(rs, 1)]));
+		    T4 = BYTW(&(W[TWVL * 8]), T3);
+		    T5 = VSUB(T2, T4);
+		    Tj = VADD(T2, T4);
+	       }
+	       {
+		    V Tb, Tg, Th, Tn, Tl, Tm;
+		    Tb = VBYI(VMUL(LDK(KP866025403), VSUB(T5, Ta)));
+		    Tg = VADD(T5, Ta);
+		    Th = VFNMS(LDK(KP500000000), Tg, Tf);
+		    ST(&(x[WS(rs, 1)]), VADD(Tb, Th), ms, &(x[WS(rs, 1)]));
+		    ST(&(x[WS(rs, 3)]), VADD(Tf, Tg), ms, &(x[WS(rs, 1)]));
+		    ST(&(x[WS(rs, 5)]), VSUB(Th, Tb), ms, &(x[WS(rs, 1)]));
+		    Tn = VBYI(VMUL(LDK(KP866025403), VSUB(Tj, Tk)));
+		    Tl = VADD(Tj, Tk);
+		    Tm = VFNMS(LDK(KP500000000), Tl, Ti);
+		    ST(&(x[WS(rs, 2)]), VSUB(Tm, Tn), ms, &(x[0]));
+		    ST(&(x[0]), VADD(Ti, Tl), ms, &(x[0]));
+		    ST(&(x[WS(rs, 4)]), VADD(Tn, Tm), ms, &(x[0]));
+	       }
+	  }
+     }
+     VLEAVE();
+}
+
+static const tw_instr twinstr[] = {
+     VTW(0, 1),
+     VTW(0, 2),
+     VTW(0, 3),
+     VTW(0, 4),
+     VTW(0, 5),
+     {TW_NEXT, VL, 0}
+};
+
+static const ct_desc desc = { 6, XSIMD_STRING("t1buv_6"), twinstr, &GENUS, {21, 12, 2, 0}, 0, 0, 0 };
+
+void XSIMD(codelet_t1buv_6) (planner *p) {
+     X(kdft_dit_register) (p, t1buv_6, &desc);
+}
+#endif				/* HAVE_FMA */