/* * Copyright (c) 2003, 2007-8 Matteo Frigo * Copyright (c) 2003, 2007-8 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ /* Generated by: ../../genfft/gen_notw_c -standalone -fma -reorder-insns -simd -compact -variables 100000 -with-ostride 2 -include fftw-spu.h -store-multiple 2 -n 6 -name X(spu_n2fv_6) */ /* * This function contains 18 FP additions, 8 FP multiplications, * (or, 12 additions, 2 multiplications, 6 fused multiply/add), * 29 stack variables, 2 constants, and 15 memory accesses */ #include "fftw-spu.h" void X(spu_n2fv_6) (const R *ri, const R *ii, R *ro, R *io, stride is, stride os, INT v, INT ivs, INT ovs) { DVK(KP500000000, +0.500000000000000000000000000000000000000000000); DVK(KP866025403, +0.866025403784438646763723170752936183471402627); INT i; const R *xi; R *xo; xi = ri; xo = ro; for (i = v; i > 0; i = i - VL, xi = xi + (VL * ivs), xo = xo + (VL * ovs), MAKE_VOLATILE_STRIDE(is), MAKE_VOLATILE_STRIDE(os)) { V Td, T3, Tc, Ta, Tg, Ti, T1, T2, Te, T6, Tf, T9, T4, T5, T7; V T8, Tj, Tk, Tl, Tb, Tm, Th, Tn, To; T1 = LD(&(xi[0]), ivs, &(xi[0])); T2 = LD(&(xi[WS(is, 3)]), ivs, &(xi[WS(is, 1)])); Td = VADD(T1, T2); T3 = VSUB(T1, T2); T4 = LD(&(xi[WS(is, 2)]), ivs, &(xi[0])); T5 = LD(&(xi[WS(is, 5)]), ivs, &(xi[WS(is, 1)])); Te = VADD(T4, T5); T6 = VSUB(T4, T5); T7 = LD(&(xi[WS(is, 4)]), ivs, &(xi[0])); T8 = LD(&(xi[WS(is, 1)]), ivs, &(xi[WS(is, 1)])); Tf = VADD(T7, T8); T9 = VSUB(T7, T8); Tc = VMUL(LDK(KP866025403), VSUB(T9, T6)); Ta = VADD(T6, T9); Tg = VADD(Te, Tf); Ti = VMUL(LDK(KP866025403), VSUB(Tf, Te)); Tj = VADD(T3, Ta); STM2(&(xo[6]), Tj, ovs, &(xo[2])); Tk = VADD(Td, Tg); STM2(&(xo[0]), Tk, ovs, &(xo[0])); Tb = VFNMS(LDK(KP500000000), Ta, T3); Tl = VFNMSI(Tc, Tb); STM2(&(xo[10]), Tl, ovs, &(xo[2])); Tm = VFMAI(Tc, Tb); STM2(&(xo[2]), Tm, ovs, &(xo[2])); STN2(&(xo[0]), Tk, Tm, ovs); Th = VFNMS(LDK(KP500000000), Tg, Td); Tn = VFNMSI(Ti, Th); STM2(&(xo[4]), Tn, ovs, &(xo[0])); STN2(&(xo[4]), Tn, Tj, ovs); To = VFMAI(Ti, Th); STM2(&(xo[8]), To, ovs, &(xo[0])); STN2(&(xo[8]), To, Tl, ovs); } }