comparison src/fftw-3.3.8/simd-support/taint.c @ 167:bd3cc4d1df30

Add FFTW 3.3.8 source, and a Linux build

+/*
+ * 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 "kernel/ifftw.h"
+#include "simd-common.h"
+
+#if HAVE_SIMD
+
+R *X(taint)(R *p, INT s)
+{
+     if (((unsigned)s * sizeof(R)) % ALIGNMENT)
+	  p = (R *) (PTRINT(p) | TAINT_BIT);
+     if (((unsigned)s * sizeof(R)) % ALIGNMENTA)
+	  p = (R *) (PTRINT(p) | TAINT_BITA);
+     return p;
+}
+
+/* join the taint of two pointers that are supposed to be
+   the same modulo the taint */
+R *X(join_taint)(R *p1, R *p2)
+{
+     A(UNTAINT(p1) == UNTAINT(p2));
+     return (R *)(PTRINT(p1) | PTRINT(p2));
+}
+#endif