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diff src/fftw-3.3.3/dft/simd/common/t3fv_5.c @ 95:89f5e221ed7b

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Add FFTW3
author Chris Cannam <cannam@all-day-breakfast.com>
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/t3fv_5.c	Wed Mar 20 15:35:50 2013 +0000
@@ -0,0 +1,183 @@
+/*
+ * 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 07:38:54 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 5 -name t3fv_5 -include t3f.h */
+
+/*
+ * This function contains 22 FP additions, 23 FP multiplications,
+ * (or, 13 additions, 14 multiplications, 9 fused multiply/add),
+ * 30 stack variables, 4 constants, and 10 memory accesses
+ */
+#include "t3f.h"
+
+static void t3fv_5(R *ri, R *ii, const R *W, stride rs, INT mb, INT me, INT ms)
+{
+     DVK(KP559016994, +0.559016994374947424102293417182819058860154590);
+     DVK(KP250000000, +0.250000000000000000000000000000000000000000000);
+     DVK(KP618033988, +0.618033988749894848204586834365638117720309180);
+     DVK(KP951056516, +0.951056516295153572116439333379382143405698634);
+     {
+	  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(5, rs)) {
+	       V T2, T5, T1, T3, Td, T7, Tb;
+	       T2 = LDW(&(W[0]));
+	       T5 = LDW(&(W[TWVL * 2]));
+	       T1 = LD(&(x[0]), ms, &(x[0]));
+	       T3 = LD(&(x[WS(rs, 1)]), ms, &(x[WS(rs, 1)]));
+	       Td = LD(&(x[WS(rs, 3)]), ms, &(x[WS(rs, 1)]));
+	       T7 = LD(&(x[WS(rs, 4)]), ms, &(x[0]));
+	       Tb = LD(&(x[WS(rs, 2)]), ms, &(x[0]));
+	       {
+		    V Ta, T6, T4, Te, Tc, T8;
+		    Ta = VZMULJ(T2, T5);
+		    T6 = VZMUL(T2, T5);
+		    T4 = VZMULJ(T2, T3);
+		    Te = VZMULJ(T5, Td);
+		    Tc = VZMULJ(Ta, Tb);
+		    T8 = VZMULJ(T6, T7);
+		    {
+			 V Tf, Tl, T9, Tk;
+			 Tf = VADD(Tc, Te);
+			 Tl = VSUB(Tc, Te);
+			 T9 = VADD(T4, T8);
+			 Tk = VSUB(T4, T8);
+			 {
+			      V Ti, Tg, To, Tm, Th, Tn, Tj;
+			      Ti = VSUB(T9, Tf);
+			      Tg = VADD(T9, Tf);
+			      To = VMUL(LDK(KP951056516), VFNMS(LDK(KP618033988), Tk, Tl));
+			      Tm = VMUL(LDK(KP951056516), VFMA(LDK(KP618033988), Tl, Tk));
+			      Th = VFNMS(LDK(KP250000000), Tg, T1);
+			      ST(&(x[0]), VADD(T1, Tg), ms, &(x[0]));
+			      Tn = VFNMS(LDK(KP559016994), Ti, Th);
+			      Tj = VFMA(LDK(KP559016994), Ti, Th);
+			      ST(&(x[WS(rs, 2)]), VFMAI(To, Tn), ms, &(x[0]));
+			      ST(&(x[WS(rs, 3)]), VFNMSI(To, Tn), ms, &(x[WS(rs, 1)]));
+			      ST(&(x[WS(rs, 4)]), VFMAI(Tm, Tj), ms, &(x[0]));
+			      ST(&(x[WS(rs, 1)]), VFNMSI(Tm, Tj), 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 = { 5, XSIMD_STRING("t3fv_5"), twinstr, &GENUS, {13, 14, 9, 0}, 0, 0, 0 };
+
+void XSIMD(codelet_t3fv_5) (planner *p) {
+     X(kdft_dit_register) (p, t3fv_5, &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 5 -name t3fv_5 -include t3f.h */
+
+/*
+ * This function contains 22 FP additions, 18 FP multiplications,
+ * (or, 19 additions, 15 multiplications, 3 fused multiply/add),
+ * 24 stack variables, 4 constants, and 10 memory accesses
+ */
+#include "t3f.h"
+
+static void t3fv_5(R *ri, R *ii, const R *W, stride rs, INT mb, INT me, INT ms)
+{
+     DVK(KP250000000, +0.250000000000000000000000000000000000000000000);
+     DVK(KP559016994, +0.559016994374947424102293417182819058860154590);
+     DVK(KP587785252, +0.587785252292473129168705954639072768597652438);
+     DVK(KP951056516, +0.951056516295153572116439333379382143405698634);
+     {
+	  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(5, rs)) {
+	       V T1, T4, T5, T9;
+	       T1 = LDW(&(W[0]));
+	       T4 = LDW(&(W[TWVL * 2]));
+	       T5 = VZMUL(T1, T4);
+	       T9 = VZMULJ(T1, T4);
+	       {
+		    V Tg, Tk, Tl, T8, Te, Th;
+		    Tg = LD(&(x[0]), ms, &(x[0]));
+		    {
+			 V T3, Td, T7, Tb;
+			 {
+			      V T2, Tc, T6, Ta;
+			      T2 = LD(&(x[WS(rs, 1)]), ms, &(x[WS(rs, 1)]));
+			      T3 = VZMULJ(T1, T2);
+			      Tc = LD(&(x[WS(rs, 3)]), ms, &(x[WS(rs, 1)]));
+			      Td = VZMULJ(T4, Tc);
+			      T6 = LD(&(x[WS(rs, 4)]), ms, &(x[0]));
+			      T7 = VZMULJ(T5, T6);
+			      Ta = LD(&(x[WS(rs, 2)]), ms, &(x[0]));
+			      Tb = VZMULJ(T9, Ta);
+			 }
+			 Tk = VSUB(T3, T7);
+			 Tl = VSUB(Tb, Td);
+			 T8 = VADD(T3, T7);
+			 Te = VADD(Tb, Td);
+			 Th = VADD(T8, Te);
+		    }
+		    ST(&(x[0]), VADD(Tg, Th), ms, &(x[0]));
+		    {
+			 V Tm, Tn, Tj, To, Tf, Ti;
+			 Tm = VBYI(VFMA(LDK(KP951056516), Tk, VMUL(LDK(KP587785252), Tl)));
+			 Tn = VBYI(VFNMS(LDK(KP587785252), Tk, VMUL(LDK(KP951056516), Tl)));
+			 Tf = VMUL(LDK(KP559016994), VSUB(T8, Te));
+			 Ti = VFNMS(LDK(KP250000000), Th, Tg);
+			 Tj = VADD(Tf, Ti);
+			 To = VSUB(Ti, Tf);
+			 ST(&(x[WS(rs, 1)]), VSUB(Tj, Tm), ms, &(x[WS(rs, 1)]));
+			 ST(&(x[WS(rs, 3)]), VSUB(To, Tn), ms, &(x[WS(rs, 1)]));
+			 ST(&(x[WS(rs, 4)]), VADD(Tm, Tj), ms, &(x[0]));
+			 ST(&(x[WS(rs, 2)]), VADD(Tn, To), ms, &(x[0]));
+		    }
+	       }
+	  }
+     }
+     VLEAVE();
+}
+
+static const tw_instr twinstr[] = {
+     VTW(0, 1),
+     VTW(0, 3),
+     {TW_NEXT, VL, 0}
+};
+
+static const ct_desc desc = { 5, XSIMD_STRING("t3fv_5"), twinstr, &GENUS, {19, 15, 3, 0}, 0, 0, 0 };
+
+void XSIMD(codelet_t3fv_5) (planner *p) {
+     X(kdft_dit_register) (p, t3fv_5, &desc);
+}
+#endif				/* HAVE_FMA */