Vc package added (version 0.6.79-dev)

[u/mrichter/AliRoot.git] / Vc / include / Vc / avx / helperimpl.tcc

diff --git a/Vc/include/Vc/avx/helperimpl.tcc b/Vc/include/Vc/avx/helperimpl.tcc
new file mode 100644 (file)
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+++ b/Vc/include/Vc/avx/helperimpl.tcc
@@ -0,0 +1,66 @@
+/*  This file is part of the Vc library.
+
+    Copyright (C) 2011-2012 Matthias Kretz <kretz@kde.org>
+
+    Vc is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as
+    published by the Free Software Foundation, either version 3 of
+    the License, or (at your option) any later version.
+
+    Vc 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 Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with Vc.  If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+#ifndef VC_AVX_HELPERIMPL_TCC
+#define VC_AVX_HELPERIMPL_TCC
+
+namespace Vc
+{
+namespace Internal
+{
+
+template<size_t X>
+static inline size_t nextMultipleOf(size_t value)
+{
+    const size_t offset = value % X;
+    if ( offset > 0 ) {
+        return value + X - offset;
+    }
+    return value;
+}
+
+template<Vc::MallocAlignment A>
+inline ALWAYS_INLINE void *HelperImpl<AVXImpl>::malloc(size_t n)
+{
+    switch (A) {
+        case Vc::AlignOnVector:
+            return _mm_malloc(nextMultipleOf<Vc::AVX::VectorAlignment>(n), Vc::AVX::VectorAlignment);
+        case Vc::AlignOnCacheline:
+            // TODO: hardcoding 64 is not such a great idea
+            return _mm_malloc(nextMultipleOf<64>(n), 64);
+        case Vc::AlignOnPage:
+            // TODO: hardcoding 4096 is not such a great idea
+            return _mm_malloc(nextMultipleOf<4096>(n), 4096);
+        default:
+#ifndef NDEBUG
+            abort();
+#endif
+            return _mm_malloc(n, 8);
+    }
+}
+
+inline ALWAYS_INLINE void HelperImpl<AVXImpl>::free(void *p)
+{
+    _mm_free(p);
+}
+
+} // namespace Internal
+} // namespace Vc
+
+#endif // VC_AVX_HELPERIMPL_TCC