/* * Copyright (c) 2003, 2007-14 Matteo Frigo * Copyright (c) 2003, 2007-14 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 * */ #include "ifftw.h" #if HAVE_SSE2 /* this file must be compiled with -msse/-msse2 or equivalent, and it will fail at runtime on a machine that does not support sse/sse2 */ #include "simd-sse2.h" /* This will produce -0.0f (or -0.0d) even on broken compilers that do not distinguish +0.0 from -0.0. I bet some are still around. */ const union uvec X(sse2_pm) = { #ifdef FFTW_SINGLE { 0x00000000, 0x80000000, 0x00000000, 0x80000000 } #else { 0x00000000, 0x00000000, 0x00000000, 0x80000000 } #endif }; /* paranoia because of past compiler bugs */ void X(check_alignment_of_sse2_pm)(void) { CK(ALIGNED(&X(sse2_pm))); } #endif