/* * 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 -n 5 -name X(spu_n2fv_5) */ /* * This function contains 16 FP additions, 11 FP multiplications, * (or, 7 additions, 2 multiplications, 9 fused multiply/add), * 23 stack variables, 4 constants, and 10 memory accesses */ #include "fftw-spu.h" void X(spu_n2fv_5) (const R *ri, const R *ii, R *ro, R *io, stride is, stride os, INT v, INT ivs, INT ovs) { DVK(KP559016994, +0.559016994374947424102293417182819058860154590); DVK(KP250000000, +0.250000000000000000000000000000000000000000000); DVK(KP618033988, +0.618033988749894848204586834365638117720309180); DVK(KP951056516, +0.951056516295153572116439333379382143405698634); 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 T1, Tc, Td, T8, Ta, T4, T7, T2, T3, T5, T6, Tg, Te, Tb, Tf; V T9; T1 = LD(&(xi[0]), ivs, &(xi[0])); T2 = LD(&(xi[WS(is, 1)]), ivs, &(xi[WS(is, 1)])); T3 = LD(&(xi[WS(is, 4)]), ivs, &(xi[0])); T4 = VADD(T2, T3); Tc = VSUB(T2, T3); T5 = LD(&(xi[WS(is, 2)]), ivs, &(xi[0])); T6 = LD(&(xi[WS(is, 3)]), ivs, &(xi[WS(is, 1)])); Td = VSUB(T5, T6); T7 = VADD(T5, T6); T8 = VADD(T4, T7); Ta = VSUB(T4, T7); ST(&(xo[0]), VADD(T1, T8), ovs, &(xo[0])); Tg = VMUL(LDK(KP951056516), VFNMS(LDK(KP618033988), Tc, Td)); Te = VMUL(LDK(KP951056516), VFMA(LDK(KP618033988), Td, Tc)); T9 = VFNMS(LDK(KP250000000), T8, T1); Tb = VFMA(LDK(KP559016994), Ta, T9); Tf = VFNMS(LDK(KP559016994), Ta, T9); ST(&(xo[2]), VFNMSI(Te, Tb), ovs, &(xo[2])); ST(&(xo[6]), VFNMSI(Tg, Tf), ovs, &(xo[2])); ST(&(xo[8]), VFMAI(Te, Tb), ovs, &(xo[0])); ST(&(xo[4]), VFMAI(Tg, Tf), ovs, &(xo[0])); } }