diff src/fftw-3.3.3/rdft/simd/common/hc2cfdftv_4.c @ 95:89f5e221ed7b

Add FFTW3

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/fftw-3.3.3/rdft/simd/common/hc2cfdftv_4.c	Wed Mar 20 15:35:50 2013 +0000
@@ -0,0 +1,146 @@
+/*
+ * 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 07:42:29 EST 2012 */
+
+#include "codelet-rdft.h"
+
+#ifdef HAVE_FMA
+
+/* Generated by: ../../../genfft/gen_hc2cdft_c.native -fma -reorder-insns -schedule-for-pipeline -simd -compact -variables 4 -pipeline-latency 8 -trivial-stores -variables 32 -no-generate-bytw -n 4 -dit -name hc2cfdftv_4 -include hc2cfv.h */
+
+/*
+ * This function contains 15 FP additions, 16 FP multiplications,
+ * (or, 9 additions, 10 multiplications, 6 fused multiply/add),
+ * 21 stack variables, 1 constants, and 8 memory accesses
+ */
+#include "hc2cfv.h"
+
+static void hc2cfdftv_4(R *Rp, R *Ip, R *Rm, R *Im, const R *W, stride rs, INT mb, INT me, INT ms)
+{
+     DVK(KP500000000, +0.500000000000000000000000000000000000000000000);
+     {
+	  INT m;
+	  for (m = mb, W = W + ((mb - 1) * ((TWVL / VL) * 6)); m < me; m = m + VL, Rp = Rp + (VL * ms), Ip = Ip + (VL * ms), Rm = Rm - (VL * ms), Im = Im - (VL * ms), W = W + (TWVL * 6), MAKE_VOLATILE_STRIDE(16, rs)) {
+	       V T1, T2, Tb, T5, T6, T4, T9, T3, Tc, T7, Ta, Tg, T8, Td, Th;
+	       V Tf, Te, Ti, Tj;
+	       T1 = LD(&(Rp[0]), ms, &(Rp[0]));
+	       T2 = LD(&(Rm[0]), -ms, &(Rm[0]));
+	       Tb = LDW(&(W[0]));
+	       T5 = LD(&(Rp[WS(rs, 1)]), ms, &(Rp[WS(rs, 1)]));
+	       T6 = LD(&(Rm[WS(rs, 1)]), -ms, &(Rm[WS(rs, 1)]));
+	       T4 = LDW(&(W[TWVL * 2]));
+	       T9 = LDW(&(W[TWVL * 4]));
+	       T3 = VFMACONJ(T2, T1);
+	       Tc = VZMULIJ(Tb, VFNMSCONJ(T2, T1));
+	       T7 = VZMULJ(T4, VFMACONJ(T6, T5));
+	       Ta = VZMULIJ(T9, VFNMSCONJ(T6, T5));
+	       Tg = VADD(T3, T7);
+	       T8 = VSUB(T3, T7);
+	       Td = VSUB(Ta, Tc);
+	       Th = VADD(Tc, Ta);
+	       Tf = VCONJ(VMUL(LDK(KP500000000), VFMAI(Td, T8)));
+	       Te = VMUL(LDK(KP500000000), VFNMSI(Td, T8));
+	       Ti = VMUL(LDK(KP500000000), VSUB(Tg, Th));
+	       Tj = VCONJ(VMUL(LDK(KP500000000), VADD(Th, Tg)));
+	       ST(&(Rm[0]), Tf, -ms, &(Rm[0]));
+	       ST(&(Rp[WS(rs, 1)]), Te, ms, &(Rp[WS(rs, 1)]));
+	       ST(&(Rp[0]), Ti, ms, &(Rp[0]));
+	       ST(&(Rm[WS(rs, 1)]), Tj, -ms, &(Rm[WS(rs, 1)]));
+	  }
+     }
+     VLEAVE();
+}
+
+static const tw_instr twinstr[] = {
+     VTW(1, 1),
+     VTW(1, 2),
+     VTW(1, 3),
+     {TW_NEXT, VL, 0}
+};
+
+static const hc2c_desc desc = { 4, XSIMD_STRING("hc2cfdftv_4"), twinstr, &GENUS, {9, 10, 6, 0} };
+
+void XSIMD(codelet_hc2cfdftv_4) (planner *p) {
+     X(khc2c_register) (p, hc2cfdftv_4, &desc, HC2C_VIA_DFT);
+}
+#else				/* HAVE_FMA */
+
+/* Generated by: ../../../genfft/gen_hc2cdft_c.native -simd -compact -variables 4 -pipeline-latency 8 -trivial-stores -variables 32 -no-generate-bytw -n 4 -dit -name hc2cfdftv_4 -include hc2cfv.h */
+
+/*
+ * This function contains 15 FP additions, 10 FP multiplications,
+ * (or, 15 additions, 10 multiplications, 0 fused multiply/add),
+ * 23 stack variables, 1 constants, and 8 memory accesses
+ */
+#include "hc2cfv.h"
+
+static void hc2cfdftv_4(R *Rp, R *Ip, R *Rm, R *Im, const R *W, stride rs, INT mb, INT me, INT ms)
+{
+     DVK(KP500000000, +0.500000000000000000000000000000000000000000000);
+     {
+	  INT m;
+	  for (m = mb, W = W + ((mb - 1) * ((TWVL / VL) * 6)); m < me; m = m + VL, Rp = Rp + (VL * ms), Ip = Ip + (VL * ms), Rm = Rm - (VL * ms), Im = Im - (VL * ms), W = W + (TWVL * 6), MAKE_VOLATILE_STRIDE(16, rs)) {
+	       V T4, Tc, T9, Te, T1, T3, T2, Tb, T6, T8, T7, T5, Td, Tg, Th;
+	       V Ta, Tf, Tk, Tl, Ti, Tj;
+	       T1 = LD(&(Rp[0]), ms, &(Rp[0]));
+	       T2 = LD(&(Rm[0]), -ms, &(Rm[0]));
+	       T3 = VCONJ(T2);
+	       T4 = VADD(T1, T3);
+	       Tb = LDW(&(W[0]));
+	       Tc = VZMULIJ(Tb, VSUB(T3, T1));
+	       T6 = LD(&(Rp[WS(rs, 1)]), ms, &(Rp[WS(rs, 1)]));
+	       T7 = LD(&(Rm[WS(rs, 1)]), -ms, &(Rm[WS(rs, 1)]));
+	       T8 = VCONJ(T7);
+	       T5 = LDW(&(W[TWVL * 2]));
+	       T9 = VZMULJ(T5, VADD(T6, T8));
+	       Td = LDW(&(W[TWVL * 4]));
+	       Te = VZMULIJ(Td, VSUB(T8, T6));
+	       Ta = VSUB(T4, T9);
+	       Tf = VBYI(VSUB(Tc, Te));
+	       Tg = VMUL(LDK(KP500000000), VSUB(Ta, Tf));
+	       Th = VCONJ(VMUL(LDK(KP500000000), VADD(Ta, Tf)));
+	       ST(&(Rp[WS(rs, 1)]), Tg, ms, &(Rp[WS(rs, 1)]));
+	       ST(&(Rm[0]), Th, -ms, &(Rm[0]));
+	       Ti = VADD(T4, T9);
+	       Tj = VADD(Tc, Te);
+	       Tk = VCONJ(VMUL(LDK(KP500000000), VSUB(Ti, Tj)));
+	       Tl = VMUL(LDK(KP500000000), VADD(Ti, Tj));
+	       ST(&(Rm[WS(rs, 1)]), Tk, -ms, &(Rm[WS(rs, 1)]));
+	       ST(&(Rp[0]), Tl, ms, &(Rp[0]));
+	  }
+     }
+     VLEAVE();
+}
+
+static const tw_instr twinstr[] = {
+     VTW(1, 1),
+     VTW(1, 2),
+     VTW(1, 3),
+     {TW_NEXT, VL, 0}
+};
+
+static const hc2c_desc desc = { 4, XSIMD_STRING("hc2cfdftv_4"), twinstr, &GENUS, {15, 10, 0, 0} };
+
+void XSIMD(codelet_hc2cfdftv_4) (planner *p) {
+     X(khc2c_register) (p, hc2cfdftv_4, &desc, HC2C_VIA_DFT);
+}
+#endif				/* HAVE_FMA */