COMPMID-511: Port FixedPoint arithmetic to new validation

Change-Id: Iae85c195a4ecdaf6df1d0055f3ad09582d128dc1
Reviewed-on: http://mpd-gerrit.cambridge.arm.com/88669
Reviewed-by: Pablo Tello <pablo.tello@arm.com>
Tested-by: Kaizen <jeremy.johnson+kaizengerrit@arm.com>

1 files changed, 123 insertions, 0 deletions

diff --git a/tests/validation/fixtures/FixedPointFixture.h b/tests/validation/fixtures/FixedPointFixture.h
new file mode 100644
index 0000000000..2980e2f324
--- /dev/null
+++ b/tests/validation/fixtures/FixedPointFixture.h
@@ -0,0 +1,123 @@
+/*
+ * Copyright (c) 2017 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_TEST_FIXED_POINT_FIXTURE
+#define ARM_COMPUTE_TEST_FIXED_POINT_FIXTURE
+
+#include "arm_compute/core/TensorShape.h"
+#include "arm_compute/core/Types.h"
+#include "tests/AssetsLibrary.h"
+#include "tests/Globals.h"
+#include "tests/IAccessor.h"
+#include "tests/framework/Asserts.h"
+#include "tests/framework/Fixture.h"
+#include "tests/validation/CPP/FixedPoint.h"
+#include "tests/validation/Helpers.h"
+
+namespace arm_compute
+{
+namespace test
+{
+namespace validation
+{
+template <typename TensorType, typename AccessorType, typename T>
+class FixedPointValidationFixture : public framework::Fixture
+{
+public:
+    template <typename...>
+    void setup(TensorShape shape, DataType dt, FixedPointOp op, int fractional_bits)
+    {
+        _fractional_bits = fractional_bits;
+        _target          = compute_target(shape, dt, op, fractional_bits);
+        _reference       = compute_reference(shape, dt, op, fractional_bits);
+    }
+
+protected:
+    template <typename U>
+    void fill(U &&tensor, int min, int max, int i)
+    {
+        std::uniform_int_distribution<> distribution(min, max);
+        library->fill(tensor, distribution, i);
+    }
+
+    TensorType compute_target(const TensorShape &shape, DataType dt, FixedPointOp op, int fixed_point_position)
+    {
+        // Create tensors
+        TensorType src = create_tensor<TensorType>(shape, dt, 1, fixed_point_position);
+        TensorType dst = create_tensor<TensorType>(shape, dt, 1, fixed_point_position);
+
+        // Allocate tensors
+        src.allocator()->allocate();
+        dst.allocator()->allocate();
+
+        ARM_COMPUTE_EXPECT(!src.info()->is_resizable(), framework::LogLevel::ERRORS);
+        ARM_COMPUTE_EXPECT(!dst.info()->is_resizable(), framework::LogLevel::ERRORS);
+
+        compute_target_impl<TensorType, AccessorType, T>(shape, dt, op, fixed_point_position, src, dst);
+
+        return dst;
+    }
+
+    SimpleTensor<T> compute_reference(const TensorShape &shape, DataType dt, FixedPointOp op, int fixed_point_position)
+    {
+        // Create reference
+        SimpleTensor<T> src{ shape, dt, 1, fixed_point_position };
+
+        // Fill reference
+        int min = 0;
+        int max = 0;
+        switch(op)
+        {
+            case FixedPointOp::EXP:
+                min = -(1 << (fixed_point_position - 1));
+                max = (1 << (fixed_point_position - 1));
+                break;
+            case FixedPointOp::INV_SQRT:
+                min = 1;
+                max = (dt == DataType::QS8) ? 0x7F : 0x7FFF;
+                break;
+            case FixedPointOp::LOG:
+                min = (1 << (fixed_point_position - 1));
+                max = (dt == DataType::QS8) ? 0x3F : 0x3FFF;
+                break;
+            case FixedPointOp::RECIPROCAL:
+                min = 15;
+                max = (dt == DataType::QS8) ? 0x7F : 0x7FFF;
+                break;
+            default:
+                ARM_COMPUTE_ERROR("Fixed point operation not supported");
+                break;
+        }
+        fill(src, min, max, 0);
+
+        return reference::fixed_point_operation<T>(src, op);
+    }
+
+    TensorType      _target{};
+    SimpleTensor<T> _reference{};
+    int             _fractional_bits{};
+};
+} // namespace validation
+} // namespace test
+} // namespace arm_compute
+#endif /* ARM_COMPUTE_TEST_FIXED_POINT_FIXTURE */