annotate src/fftw-3.3.8/simd-support/taint.c @ 82:d0c2a83c1364

Add FFTW 3.3.8 source, and a Linux build
author Chris Cannam
date Tue, 19 Nov 2019 14:52:55 +0000
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Chris@82 1 /*
Chris@82 2 * Copyright (c) 2003, 2007-14 Matteo Frigo
Chris@82 3 * Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
Chris@82 4 *
Chris@82 5 * This program is free software; you can redistribute it and/or modify
Chris@82 6 * it under the terms of the GNU General Public License as published by
Chris@82 7 * the Free Software Foundation; either version 2 of the License, or
Chris@82 8 * (at your option) any later version.
Chris@82 9 *
Chris@82 10 * This program is distributed in the hope that it will be useful,
Chris@82 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
Chris@82 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
Chris@82 13 * GNU General Public License for more details.
Chris@82 14 *
Chris@82 15 * You should have received a copy of the GNU General Public License
Chris@82 16 * along with this program; if not, write to the Free Software
Chris@82 17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
Chris@82 18 *
Chris@82 19 */
Chris@82 20
Chris@82 21
Chris@82 22 #include "kernel/ifftw.h"
Chris@82 23 #include "simd-common.h"
Chris@82 24
Chris@82 25 #if HAVE_SIMD
Chris@82 26
Chris@82 27 R *X(taint)(R *p, INT s)
Chris@82 28 {
Chris@82 29 if (((unsigned)s * sizeof(R)) % ALIGNMENT)
Chris@82 30 p = (R *) (PTRINT(p) | TAINT_BIT);
Chris@82 31 if (((unsigned)s * sizeof(R)) % ALIGNMENTA)
Chris@82 32 p = (R *) (PTRINT(p) | TAINT_BITA);
Chris@82 33 return p;
Chris@82 34 }
Chris@82 35
Chris@82 36 /* join the taint of two pointers that are supposed to be
Chris@82 37 the same modulo the taint */
Chris@82 38 R *X(join_taint)(R *p1, R *p2)
Chris@82 39 {
Chris@82 40 A(UNTAINT(p1) == UNTAINT(p2));
Chris@82 41 return (R *)(PTRINT(p1) | PTRINT(p2));
Chris@82 42 }
Chris@82 43 #endif