[reference model] Add shape operators

- fixed up reshape conformance tests to use shape input instead of attribute
- fixed up tile conformance tests to use shape input instead of attribute
- fixed output and output rank of dim op
- allow rank 0 and rank 1 tensors for tosa.shape values (for shape = {})
- added initialization of rank 0 const_shape tensors (for shape = {})
- Update conformance tests to use new rescale attributes

Signed-off-by: Tai Ly <tai.ly@arm.com>
Signed-off-by: Won Jeon <won.jeon@arm.com>
Change-Id: I6cce0d2a9ab066fe20a2abf9d2cfde3eb3d8c18b

1 files changed, 120 insertions, 0 deletions

diff --git a/reference_model/src/ops/shape.h b/reference_model/src/ops/shape.h
new file mode 100644
index 0000000..38ecda8
--- /dev/null
+++ b/reference_model/src/ops/shape.h
@@ -0,0 +1,120 @@
+// Copyright (c) 2023-2024, ARM Limited.
+//
+//    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.
+
+#ifndef OPS_SHAPES_H
+#define OPS_SHAPES_H
+
+#include "graph_node.h"
+
+namespace TosaReference
+{
+
+class OpConstShape : public GraphNode
+{
+public:
+    OpConstShape(SubgraphTraverser* sgt_, uint64_t id_);
+    virtual ~OpConstShape();
+
+    virtual int checkTensorAttributes();
+    virtual int eval();
+};
+
+class OpConcatShape : public GraphNode
+{
+public:
+    OpConcatShape(SubgraphTraverser* sgt_, uint64_t id_);
+    virtual ~OpConcatShape();
+
+    virtual int checkTensorAttributes();
+    virtual int eval();
+
+    using EigenType = typename GetEigenType<TOSA_REF_TYPE_SHAPE>::type;
+    using TIn       = Eigen::Tensor<EigenType, 1>;
+    using TOut      = Eigen::Tensor<EigenType, 1>;
+
+protected:
+    int32_t num_dims;    // number of dimensions in concat_shape output
+    std::vector<TosaReference::TensorTemplate<TIn>*> ins;
+    TosaReference::TensorTemplate<TOut>* out;
+};
+
+class ShapeBinaryNodeBase : public GraphNode
+{
+public:
+    ShapeBinaryNodeBase(SubgraphTraverser* sgt_, const Op& op_, uint64_t id_);
+    virtual ~ShapeBinaryNodeBase();
+
+    virtual int checkTensorAttributes() final;
+    virtual int eval();
+    virtual int register_fcn() = 0;
+
+    using EigenType = typename GetEigenType<TOSA_REF_TYPE_SHAPE>::type;
+    using TIn       = Eigen::Tensor<EigenType, 1>;
+    using TOut      = Eigen::Tensor<EigenType, 1>;
+
+protected:
+    int32_t num_dims;    // number of dimensions in shape op's result
+    std::function<EigenType(EigenType, EigenType)> fcn;
+    TosaReference::TensorTemplate<TIn>* a;
+    TosaReference::TensorTemplate<TIn>* b;
+    TosaReference::TensorTemplate<TOut>* result;
+};
+
+class OpAddShape : public ShapeBinaryNodeBase
+{
+public:
+    OpAddShape(SubgraphTraverser* sgt_, uint64_t id_)
+        : ShapeBinaryNodeBase(sgt_, Op_ADD_SHAPE, id_)
+    {
+        register_fcn();
+    }
+    virtual int register_fcn();
+};
+
+class OpSubShape : public ShapeBinaryNodeBase
+{
+public:
+    OpSubShape(SubgraphTraverser* sgt_, uint64_t id_)
+        : ShapeBinaryNodeBase(sgt_, Op_SUB_SHAPE, id_)
+    {
+        register_fcn();
+    }
+    virtual int register_fcn();
+};
+
+class OpMulShape : public ShapeBinaryNodeBase
+{
+public:
+    OpMulShape(SubgraphTraverser* sgt_, uint64_t id_)
+        : ShapeBinaryNodeBase(sgt_, Op_MUL_SHAPE, id_)
+    {
+        register_fcn();
+    }
+    virtual int register_fcn();
+};
+
+class OpDivShape : public ShapeBinaryNodeBase
+{
+public:
+    OpDivShape(SubgraphTraverser* sgt_, uint64_t id_)
+        : ShapeBinaryNodeBase(sgt_, Op_DIV_SHAPE, id_)
+    {
+        register_fcn();
+    }
+    virtual int register_fcn();
+};
+
+};    // namespace TosaReference
+
+#endif