COMPMID-1716: CL Comparison operations

Adds support for Equal,NotEqual,Less,LessEqual,Greater,GreaterEqual

Change-Id: If0cdf4aae7f95c94709b195eee485f6663f45909

1 files changed, 145 insertions, 0 deletions

diff --git a/tests/validation/reference/Comparisons.cpp b/tests/validation/reference/Comparisons.cpp
new file mode 100644
index 0000000000..a83c365a22
--- /dev/null
+++ b/tests/validation/reference/Comparisons.cpp
@@ -0,0 +1,145 @@
+/*
+ * 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.
+ */
+#include "Comparisons.h"
+
+#include "arm_compute/core/Types.h"
+#include "tests/validation/Helpers.h"
+
+namespace arm_compute
+{
+namespace test
+{
+namespace validation
+{
+namespace reference
+{
+namespace
+{
+template <typename T>
+uint8_t compare_op(ComparisonOperation op, T src1, T src2)
+{
+    uint8_t result = 0;
+    switch(op)
+    {
+        case ComparisonOperation::Equal:
+            result = static_cast<uint8_t>(src1 == src2);
+            break;
+        case ComparisonOperation::NotEqual:
+            result = static_cast<uint8_t>(src1 != src2);
+            break;
+        case ComparisonOperation::GreaterEqual:
+            result = static_cast<uint8_t>(src1 >= src2);
+            break;
+        case ComparisonOperation::Greater:
+            result = static_cast<uint8_t>(src1 > src2);
+            break;
+        case ComparisonOperation::LessEqual:
+            result = static_cast<uint8_t>(src1 <= src2);
+            break;
+        case ComparisonOperation::Less:
+            result = static_cast<uint8_t>(src1 < src2);
+            break;
+        default:
+            ARM_COMPUTE_ERROR("Unsupported operation");
+    }
+    return (result != 0) ? 255 : 0;
+}
+
+template <size_t dim>
+struct BroadcastUnroll
+{
+    template <typename T>
+    static void unroll(ComparisonOperation    op,
+                       const SimpleTensor<T> &src1, const SimpleTensor<T> &src2, SimpleTensor<uint8_t> &dst,
+                       Coordinates &id_src1, Coordinates &id_src2, Coordinates &id_dst)
+    {
+        const bool src1_is_broadcast = (src1.shape()[dim - 1] != dst.shape()[dim - 1]);
+        const bool src2_is_broadcast = (src2.shape()[dim - 1] != dst.shape()[dim - 1]);
+
+        id_src1.set(dim - 1, 0);
+        id_src2.set(dim - 1, 0);
+        id_dst.set(dim - 1, 0);
+
+        for(size_t i = 0; i < dst.shape()[dim - 1]; ++i, ++id_dst[dim - 1])
+        {
+            BroadcastUnroll < dim - 1 >::unroll(op, src1, src2, dst, id_src1, id_src2, id_dst);
+
+            id_src1[dim - 1] += !src1_is_broadcast;
+            id_src2[dim - 1] += !src2_is_broadcast;
+        }
+    }
+};
+
+template <>
+struct BroadcastUnroll<0>
+{
+    template <typename T>
+    static void unroll(ComparisonOperation    op,
+                       const SimpleTensor<T> &src1, const SimpleTensor<T> &src2, SimpleTensor<uint8_t> &dst,
+                       Coordinates &id_src1, Coordinates &id_src2, Coordinates &id_dst)
+    {
+        dst[coord2index(dst.shape(), id_dst)] = compare_op(op, src1[coord2index(src1.shape(), id_src1)], src2[coord2index(src2.shape(), id_src2)]);
+    }
+};
+} // namespace
+
+template <typename T>
+SimpleTensor<uint8_t> compare(ComparisonOperation op, const SimpleTensor<T> &src1, const SimpleTensor<T> &src2)
+{
+    SimpleTensor<uint8_t> dst(TensorShape::broadcast_shape(src1.shape(), src2.shape()), DataType::U8);
+
+    Coordinates id_src1, id_src2, id_dst;
+    BroadcastUnroll<Coordinates::num_max_dimensions>::unroll(op, src1, src2, dst, id_src1, id_src2, id_dst);
+    return dst;
+}
+
+template <>
+SimpleTensor<uint8_t> compare(ComparisonOperation op, const SimpleTensor<uint8_t> &src1, const SimpleTensor<uint8_t> &src2)
+{
+    SimpleTensor<uint8_t> dst(TensorShape::broadcast_shape(src1.shape(), src2.shape()), DataType::U8);
+
+    if(src1.data_type() == DataType::QASYMM8)
+    {
+        SimpleTensor<float> src1_tmp = convert_from_asymmetric(src1);
+        SimpleTensor<float> src2_tmp = convert_from_asymmetric(src2);
+
+        Coordinates id_src1, id_src2, id_dst;
+        BroadcastUnroll<Coordinates::num_max_dimensions>::unroll(op, src1_tmp, src2_tmp, dst, id_src1, id_src2, id_dst);
+    }
+    else
+    {
+        // DataType::U8
+        Coordinates id_src1, id_src2, id_dst;
+        BroadcastUnroll<Coordinates::num_max_dimensions>::unroll(op, src1, src2, dst, id_src1, id_src2, id_dst);
+    }
+    return dst;
+}
+
+template SimpleTensor<uint8_t> compare(ComparisonOperation op, const SimpleTensor<half> &src1, const SimpleTensor<half> &src2);
+template SimpleTensor<uint8_t> compare(ComparisonOperation op, const SimpleTensor<float> &src1, const SimpleTensor<float> &src2);
+
+} // namespace reference
+} // namespace validation
+} // namespace test
+} // namespace arm_compute