Mercurial > hg > sv-dependency-builds
diff src/fftw-3.3.3/dft/simd/common/n2fv_6.c @ 10:37bf6b4a2645
Add FFTW3
author | Chris Cannam |
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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/n2fv_6.c Wed Mar 20 15:35:50 2013 +0000 @@ -0,0 +1,181 @@ +/* + * 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 07:37:21 EST 2012 */ + +#include "codelet-dft.h" + +#ifdef HAVE_FMA + +/* Generated by: ../../../genfft/gen_notw_c.native -fma -reorder-insns -schedule-for-pipeline -simd -compact -variables 4 -pipeline-latency 8 -n 6 -name n2fv_6 -with-ostride 2 -include n2f.h -store-multiple 2 */ + +/* + * 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 "n2f.h" + +static void 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(12, is), MAKE_VOLATILE_STRIDE(12, os)) { + V T1, T2, T4, T5, T7, T8; + T1 = LD(&(xi[0]), ivs, &(xi[0])); + T2 = LD(&(xi[WS(is, 3)]), ivs, &(xi[WS(is, 1)])); + T4 = LD(&(xi[WS(is, 2)]), ivs, &(xi[0])); + T5 = LD(&(xi[WS(is, 5)]), ivs, &(xi[WS(is, 1)])); + T7 = LD(&(xi[WS(is, 4)]), ivs, &(xi[0])); + T8 = LD(&(xi[WS(is, 1)]), ivs, &(xi[WS(is, 1)])); + { + V T3, Td, T6, Te, T9, Tf; + T3 = VSUB(T1, T2); + Td = VADD(T1, T2); + T6 = VSUB(T4, T5); + Te = VADD(T4, T5); + T9 = VSUB(T7, T8); + Tf = VADD(T7, T8); + { + V Tg, Ti, Ta, Tc; + Tg = VADD(Te, Tf); + Ti = VMUL(LDK(KP866025403), VSUB(Tf, Te)); + Ta = VADD(T6, T9); + Tc = VMUL(LDK(KP866025403), VSUB(T9, T6)); + { + V Th, Tj, Tb, Tk; + Th = VFNMS(LDK(KP500000000), Tg, Td); + Tj = VADD(Td, Tg); + STM2(&(xo[0]), Tj, ovs, &(xo[0])); + Tb = VFNMS(LDK(KP500000000), Ta, T3); + Tk = VADD(T3, Ta); + STM2(&(xo[6]), Tk, ovs, &(xo[2])); + { + V Tl, Tm, Tn, To; + Tl = VFMAI(Ti, Th); + STM2(&(xo[8]), Tl, ovs, &(xo[0])); + Tm = VFNMSI(Ti, Th); + STM2(&(xo[4]), Tm, ovs, &(xo[0])); + STN2(&(xo[4]), Tm, Tk, ovs); + Tn = VFMAI(Tc, Tb); + STM2(&(xo[2]), Tn, ovs, &(xo[2])); + STN2(&(xo[0]), Tj, Tn, ovs); + To = VFNMSI(Tc, Tb); + STM2(&(xo[10]), To, ovs, &(xo[2])); + STN2(&(xo[8]), Tl, To, ovs); + } + } + } + } + } + } + VLEAVE(); +} + +static const kdft_desc desc = { 6, XSIMD_STRING("n2fv_6"), {12, 2, 6, 0}, &GENUS, 0, 2, 0, 0 }; + +void XSIMD(codelet_n2fv_6) (planner *p) { + X(kdft_register) (p, n2fv_6, &desc); +} + +#else /* HAVE_FMA */ + +/* Generated by: ../../../genfft/gen_notw_c.native -simd -compact -variables 4 -pipeline-latency 8 -n 6 -name n2fv_6 -with-ostride 2 -include n2f.h -store-multiple 2 */ + +/* + * This function contains 18 FP additions, 4 FP multiplications, + * (or, 16 additions, 2 multiplications, 2 fused multiply/add), + * 25 stack variables, 2 constants, and 15 memory accesses + */ +#include "n2f.h" + +static void n2fv_6(const R *ri, const R *ii, R *ro, R *io, stride is, stride os, INT v, INT ivs, INT ovs) +{ + DVK(KP866025403, +0.866025403784438646763723170752936183471402627); + DVK(KP500000000, +0.500000000000000000000000000000000000000000000); + { + 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(12, is), MAKE_VOLATILE_STRIDE(12, os)) { + V T3, Td, T6, Te, T9, Tf, Ta, Tg, T1, T2, Tj, Tk; + T1 = LD(&(xi[0]), ivs, &(xi[0])); + T2 = LD(&(xi[WS(is, 3)]), ivs, &(xi[WS(is, 1)])); + T3 = VSUB(T1, T2); + Td = VADD(T1, T2); + { + V T4, T5, T7, T8; + T4 = LD(&(xi[WS(is, 2)]), ivs, &(xi[0])); + T5 = LD(&(xi[WS(is, 5)]), ivs, &(xi[WS(is, 1)])); + T6 = VSUB(T4, T5); + Te = VADD(T4, T5); + T7 = LD(&(xi[WS(is, 4)]), ivs, &(xi[0])); + T8 = LD(&(xi[WS(is, 1)]), ivs, &(xi[WS(is, 1)])); + T9 = VSUB(T7, T8); + Tf = VADD(T7, T8); + } + Ta = VADD(T6, T9); + Tg = VADD(Te, Tf); + Tj = VADD(T3, Ta); + STM2(&(xo[6]), Tj, ovs, &(xo[2])); + Tk = VADD(Td, Tg); + STM2(&(xo[0]), Tk, ovs, &(xo[0])); + { + V Tl, Tb, Tc, Tm; + Tb = VFNMS(LDK(KP500000000), Ta, T3); + Tc = VBYI(VMUL(LDK(KP866025403), VSUB(T9, T6))); + Tl = VSUB(Tb, Tc); + STM2(&(xo[10]), Tl, ovs, &(xo[2])); + Tm = VADD(Tb, Tc); + STM2(&(xo[2]), Tm, ovs, &(xo[2])); + STN2(&(xo[0]), Tk, Tm, ovs); + { + V Th, Ti, Tn, To; + Th = VFNMS(LDK(KP500000000), Tg, Td); + Ti = VBYI(VMUL(LDK(KP866025403), VSUB(Tf, Te))); + Tn = VSUB(Th, Ti); + STM2(&(xo[4]), Tn, ovs, &(xo[0])); + STN2(&(xo[4]), Tn, Tj, ovs); + To = VADD(Th, Ti); + STM2(&(xo[8]), To, ovs, &(xo[0])); + STN2(&(xo[8]), To, Tl, ovs); + } + } + } + } + VLEAVE(); +} + +static const kdft_desc desc = { 6, XSIMD_STRING("n2fv_6"), {16, 2, 2, 0}, &GENUS, 0, 2, 0, 0 }; + +void XSIMD(codelet_n2fv_6) (planner *p) { + X(kdft_register) (p, n2fv_6, &desc); +} + +#endif /* HAVE_FMA */