COMPMID-765 : NEON Wrapper initial traits and overloads

Change-Id: Iea4c4732d19e8cf9b245ac2a9f75b2aa70a5839e
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/118149
Reviewed-by: Michele DiGiorgio <michele.digiorgio@arm.com>
Reviewed-by: Anthony Barbier <anthony.barbier@arm.com>
Tested-by: Jenkins <bsgcomp@arm.com>

1 files changed, 65 insertions, 0 deletions

diff --git a/arm_compute/core/NEON/wrapper/traits.h b/arm_compute/core/NEON/wrapper/traits.h
new file mode 100644
index 0000000000..045839cf48
--- /dev/null
+++ b/arm_compute/core/NEON/wrapper/traits.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (c) 2018 ARM Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef __ARM_COMPUTE_WRAPPER_TRAITS_H__
+#define __ARM_COMPUTE_WRAPPER_TRAITS_H__
+
+#include <arm_neon.h>
+
+namespace arm_compute
+{
+namespace wrapper
+{
+namespace traits
+{
+// *INDENT-OFF*
+// clang-format off
+
+/** Create the appropriate NEON vector given its type and size */
+template <typename T, int S> struct neon_vector;
+/** Specializations */
+template <> struct neon_vector<uint8_t, 8>{ using type = uint8x8_t; };
+template <> struct neon_vector<int8_t, 8>{ using type = int8x8_t; };
+template <> struct neon_vector<uint8_t, 16>{ using type = uint8x16_t; };
+template <> struct neon_vector<int8_t, 16>{ using type = int8x16_t; };
+template <> struct neon_vector<uint16_t, 4>{ using type = uint16x4_t; };
+template <> struct neon_vector<int16_t, 4>{ using type = int16x4_t; };
+template <> struct neon_vector<uint16_t, 8>{ using type = uint16x8_t; };
+template <> struct neon_vector<int16_t, 8>{ using type = int16x8_t; };
+template <> struct neon_vector<uint32_t, 2>{ using type = uint32x2_t; };
+template <> struct neon_vector<int32_t, 2>{ using type = int32x2_t; };
+template <> struct neon_vector<uint32_t, 4>{ using type = uint32x4_t; };
+template <> struct neon_vector<int32_t, 4>{ using type = int32x4_t; };
+template <> struct neon_vector<uint64_t, 1>{ using type = uint64x1_t; };
+template <> struct neon_vector<int64_t, 1>{ using type = int64x1_t; };
+template <> struct neon_vector<uint64_t, 2>{ using type = uint64x2_t; };
+template <> struct neon_vector<int64_t, 2>{ using type = int64x2_t; };
+template <> struct neon_vector<float_t, 2>{ using type = float32x2_t; };
+template <> struct neon_vector<float_t, 4>{ using type = float32x4_t; };
+template <typename T, int S> using neon_vector_t = typename neon_vector<T, S>::type;
+// clang-format on
+// *INDENT-ON*
+}
+}
+}
+#endif /* __ARM_COMPUTE_WRAPPER_TRAITS_H__ */