1 files changed, 49 insertions, 0 deletions
diff --git a/libitm/config/generic/cacheline.cc b/libitm/config/generic/cacheline.cc
new file mode 100644
index 00000000000..108ffba3037
--- /dev/null
+++ b/libitm/config/generic/cacheline.cc
@@ -0,0 +1,49 @@
+/* Copyright (C) 2009, 2011 Free Software Foundation, Inc.
+   Contributed by Richard Henderson <rth@redhat.com>.
+
+   This file is part of the GNU Transactional Memory Library (libitm).
+
+   Libitm 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 3 of the License, or
+   (at your option) any later version.
+
+   Libitm 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.
+
+   Under Section 7 of GPL version 3, you are granted additional
+   permissions described in the GCC Runtime Library Exception, version
+   3.1, as published by the Free Software Foundation.
+
+   You should have received a copy of the GNU General Public License and
+   a copy of the GCC Runtime Library Exception along with this program;
+   see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include "libitm_i.h"
+
+
+namespace GTM HIDDEN {
+
+void
+gtm_cacheline::copy_mask (gtm_cacheline * __restrict d,
+			  const gtm_cacheline * __restrict s,
+			  gtm_cacheline_mask m)
+{
+  const size_t n = sizeof (gtm_word);
+
+  if (m == (gtm_cacheline_mask) -1)
+    {
+      *d = *s;
+      return;
+    }
+  if (__builtin_expect (m == 0, 0))
+    return;
+
+  for (size_t i = 0; i < CACHELINE_SIZE / n; ++i, m >>= n)
+    store_mask (&d->w[i], s->w[i], m);
+}
+
+} // namespace GTM