COMPMID-1419: Make NEGEMMAssemblyDispatch dynamically typed instead of templated

This makes it easier to integrate in GEMMLowpMatrixMultiplyCore

Change-Id: Ibf80803f016a2e6a24d943ffafb50b48f04ec545
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/140868
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Tested-by: Jenkins <bsgcomp@arm.com>
diff --git a/arm_compute/core/CPP/Validate.h b/arm_compute/core/CPP/Validate.h
new file mode 100644
index 0000000..1799f90
--- /dev/null
+++ b/arm_compute/core/CPP/Validate.h
@@ -0,0 +1,74 @@
+/*
+ * 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_CPP_VALIDATE_H__
+#define __ARM_COMPUTE_CPP_VALIDATE_H__
+
+#include "arm_compute/core/Validate.h"
+
+namespace arm_compute
+{
+/** Return an error if the data type of the passed tensor info is FP16 and FP16 support is not compiled in.
+ *
+ * @param[in] function    Function in which the error occurred.
+ * @param[in] file        Name of the file where the error occurred.
+ * @param[in] line        Line on which the error occurred.
+ * @param[in] tensor_info Tensor info to validate.
+ *
+ * @return Status
+ */
+inline arm_compute::Status error_on_unsupported_cpu_fp16(const char *function, const char *file, const int line,
+                                                         const ITensorInfo *tensor_info)
+{
+    ARM_COMPUTE_RETURN_ERROR_ON_LOC(tensor_info == nullptr, function, file, line);
+#ifndef __ARM_FEATURE_FP16_VECTOR_ARITHMETIC
+    ARM_COMPUTE_RETURN_ERROR_ON_LOC_MSG(tensor_info->data_type() == DataType::F16,
+                                        function, file, line, "This CPU architecture does not support F16 data type, you need v8.2 or above");
+#endif /* __ARM_FEATURE_FP16_VECTOR_ARITHMETIC */
+    return arm_compute::Status {};
+}
+
+/** Return an error if the data type of the passed tensor is FP16 and FP16 support is not compiled in.
+ *
+ * @param[in] function Function in which the error occurred.
+ * @param[in] file     Name of the file where the error occurred.
+ * @param[in] line     Line on which the error occurred.
+ * @param[in] tensor   Tensor to validate.
+ *
+ * @return Status
+ */
+inline arm_compute::Status error_on_unsupported_cpu_fp16(const char *function, const char *file, const int line,
+                                                         const ITensor *tensor)
+{
+    ARM_COMPUTE_RETURN_ERROR_ON_LOC(tensor == nullptr, function, file, line);
+    ARM_COMPUTE_RETURN_ON_ERROR(::arm_compute::error_on_unsupported_cpu_fp16(function, file, line, tensor->info()));
+    return arm_compute::Status{};
+}
+
+#define ARM_COMPUTE_ERROR_ON_CPU_F16_UNSUPPORTED(tensor) \
+    ARM_COMPUTE_ERROR_THROW_ON(::arm_compute::error_on_unsupported_cpu_fp16(__func__, __FILE__, __LINE__, tensor))
+
+#define ARM_COMPUTE_RETURN_ERROR_ON_CPU_F16_UNSUPPORTED(tensor) \
+    ARM_COMPUTE_RETURN_ON_ERROR(::arm_compute::error_on_unsupported_cpu_fp16(__func__, __FILE__, __LINE__, tensor))
+} // namespace arm_compute
+#endif /* __ARM_COMPUTE_CPP_VALIDATE_H__ */