COMPMID-1710: Fixes in StrideSlice calculations.

Change-Id: I66eb922f1ff15142de278bf4439a61c979f98ba7
Reviewed-on: https://review.mlplatform.org/382
Reviewed-by: Matthew Bentham <matthew.bentham@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Pablo Marquez <pablo.tello@arm.com>

1 files changed, 52 insertions, 0 deletions

diff --git a/arm_compute/core/utils/helpers/bit_ops.h b/arm_compute/core/utils/helpers/bit_ops.h
new file mode 100644
index 0000000000..fd27014a46
--- /dev/null
+++ b/arm_compute/core/utils/helpers/bit_ops.h
@@ -0,0 +1,52 @@
+/*
+ * 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_UTILS_HELPERS_BIT_OPS_H__
+#define __ARM_COMPUTE_UTILS_HELPERS_BIT_OPS_H__
+
+#include "arm_compute/core/utils/misc/Requires.h"
+
+#include <type_traits>
+
+namespace arm_compute
+{
+namespace helpers
+{
+namespace bit_ops
+{
+/** Checks if the idx-th bit is set in an integral type
+ *
+ * @param[in] v   Integral input
+ * @param[in] idx Index of the bit to check
+ *
+ * @return True if the idx-th bit is set else false
+ */
+template <typename T, REQUIRES_TA(std::is_integral<T>::value)>
+bool is_bit_set(T v, unsigned int idx)
+{
+    return (v & 1 << idx) != 0;
+}
+} // namespace bit_ops
+} // namespace helpers
+} // namespace arm_compute
+#endif /* __ARM_COMPUTE_UTILS_HELPERS_BIT_OPS_H__ */