COMPMID-556: Rename CPP folder to reference

Change-Id: I147644349547c4e3804a80b564a9ad95131ad2d0
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/111560
Reviewed-by: Michalis Spyrou <michalis.spyrou@arm.com>
Tested-by: BSG Visual Compute Jenkins server to access repositories on http://mpd-gerrit.cambridge.arm.com <bsgcomp@arm.com>

1 files changed, 122 insertions, 0 deletions

diff --git a/tests/validation/reference/GEMM.cpp b/tests/validation/reference/GEMM.cpp
new file mode 100644
index 0000000000..77d025ec8e
--- /dev/null
+++ b/tests/validation/reference/GEMM.cpp
@@ -0,0 +1,122 @@
+/*
+ * 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.
+ */
+#include "GEMM.h"
+
+#include "arm_compute/core/Types.h"
+#include "tests/validation/FixedPoint.h"
+
+namespace arm_compute
+{
+namespace test
+{
+namespace validation
+{
+namespace reference
+{
+template <typename T, typename std::enable_if<is_floating_point<T>::value, int>::type>
+SimpleTensor<T> gemm(const SimpleTensor<T> &a, const SimpleTensor<T> &b, const SimpleTensor<T> &c, float alpha, float beta)
+{
+    // Create reference
+    SimpleTensor<T> dst{ c.shape(), c.data_type(), 1, c.fixed_point_position() };
+
+    // Compute reference
+    const int M = dst.shape().y();
+    const int N = dst.shape().x();
+    const int K = a.shape().x();
+
+    for(int row = 0; row < M; ++row)
+    {
+        for(int col = 0; col < N; ++col)
+        {
+            T acc(0);
+
+            for(int k = 0; k < K; ++k)
+            {
+                acc += a[row * K + k] * b[k * N + col];
+            }
+
+            // Finalize the result: alpha * A * B + beta * C
+            dst[col + row * N] = alpha * acc + beta * c[col + row * N];
+        }
+    }
+
+    return dst;
+}
+
+template <typename T, typename std::enable_if<std::is_integral<T>::value, int>::type>
+SimpleTensor<T> gemm(const SimpleTensor<T> &a, const SimpleTensor<T> &b, const SimpleTensor<T> &c, float alpha, float beta)
+{
+    using namespace fixed_point_arithmetic;
+
+    // Create reference
+    SimpleTensor<T> dst{ c.shape(), c.data_type(), 1, c.fixed_point_position() };
+
+    // Compute reference
+    using promoted_type = fixed_point_arithmetic::traits::promote_t<T>;
+
+    const int M                    = dst.shape().y();
+    const int N                    = dst.shape().x();
+    const int K                    = a.shape().x();
+    const int fixed_point_position = a.fixed_point_position();
+
+    const fixed_point<T> alpha_q(alpha, fixed_point_position);
+    const fixed_point<T> beta_q(beta, fixed_point_position);
+
+    for(int row = 0; row < M; ++row)
+    {
+        for(int col = 0; col < N; ++col)
+        {
+            fixed_point<promoted_type> acc_q(0, fixed_point_position);
+
+            for(int k = 0; k < K; ++k)
+            {
+                const fixed_point<promoted_type> a0_q(a[row * K + k], fixed_point_position, true);
+                const fixed_point<promoted_type> b0_q(b[k * N + col], fixed_point_position, true);
+
+                acc_q = acc_q + (a0_q * b0_q);
+            }
+
+            // Finalize the result: alpha * A * B + beta * C
+            const fixed_point<T> c0_q(c[col + row * N], fixed_point_position, true);
+
+            fixed_point<T> res_q(acc_q);
+            res_q = alpha_q * res_q;
+            res_q = res_q + (beta_q * c0_q);
+
+            // Store the result
+            dst[col + row * N] = res_q.raw();
+        }
+    }
+
+    return dst;
+}
+
+template SimpleTensor<float> gemm(const SimpleTensor<float> &a, const SimpleTensor<float> &b, const SimpleTensor<float> &c, float alpha, float beta);
+template SimpleTensor<half> gemm(const SimpleTensor<half> &a, const SimpleTensor<half> &b, const SimpleTensor<half> &c, float alpha, float beta);
+template SimpleTensor<qint8_t> gemm(const SimpleTensor<qint8_t> &a, const SimpleTensor<qint8_t> &b, const SimpleTensor<qint8_t> &c, float alpha, float beta);
+template SimpleTensor<qint16_t> gemm(const SimpleTensor<qint16_t> &a, const SimpleTensor<qint16_t> &b, const SimpleTensor<qint16_t> &c, float alpha, float beta);
+} // namespace reference
+} // namespace validation
+} // namespace test
+} // namespace arm_compute