1 files changed, 57 insertions, 0 deletions
diff --git a/compiler/ann-ref/src/ops/Mul.cpp b/compiler/ann-ref/src/ops/Mul.cpp
new file mode 100644
index 000000000..03ea9383a
--- /dev/null
+++ b/compiler/ann-ref/src/ops/Mul.cpp
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2018 Samsung Electronics Co., Ltd. All Rights Reserved
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "Mul.h"
+#include "Assert.h"
+
+bool mulPrepare(const Shape &in1, const Shape &in2, Shape *out)
+{
+  ASSERT(getNumberOfDimensions(in1) <= 4 && getNumberOfDimensions(in2) <= 4);
+  ASSERT(in1.type == in2.type);
+  if (SameShape(in1, in2))
+  {
+    return SetShape(in1, out);
+  }
+  else
+  {
+    // Broadcast needed
+    uint32_t numberOfDims1 = getNumberOfDimensions(in1);
+    uint32_t numberOfDims2 = getNumberOfDimensions(in2);
+    uint32_t maxDims = std::max(numberOfDims1, numberOfDims2);
+    out->dimensions = std::vector<uint32_t>(maxDims);
+    for (uint32_t i = 1; i <= maxDims; i++)
+    {
+      uint32_t dim1 = 1;
+      if (i <= numberOfDims1)
+      {
+        dim1 = getSizeOfDimension(in1, numberOfDims1 - i);
+      }
+      uint32_t dim2 = 1;
+      if (i <= numberOfDims2)
+      {
+        dim2 = getSizeOfDimension(in2, numberOfDims2 - i);
+      }
+      if (dim1 != dim2 && dim1 != 1 && dim2 != 1)
+      {
+        LOG(ERROR) << "Dimensions mismatch for BroadcastAdd";
+        return false;
+      }
+      out->dimensions[maxDims - i] = std::max(dim1, dim2);
+    }
+  }
+  return true;
+}