From 3d9cff194a245be06559d2321bfea017bd2cc426 Mon Sep 17 00:00:00 2001
From: =?utf8?q?=EA=B9=80=EC=9A=A9=EC=84=AD/=EB=8F=99=EC=9E=91=EC=A0=9C?=
 =?utf8?q?=EC=96=B4Lab=28SR=29/Engineer/=EC=82=BC=EC=84=B1=EC=A0=84?=
 =?utf8?q?=EC=9E=90?= <yons.kim@samsung.com>
Date: Fri, 7 Sep 2018 10:07:09 +0900
Subject: [PATCH] Introduce EMBEDDING_LOOKUP op to pure_acl (#2631)

Introduce EMBEDDING_LOOKUP op to pure_acl

Signed-off-by: Yongseop Kim <yons.kim@samsung.com>
---
 runtimes/pure_arm_compute/src/compilation.cc       |  7 +++
 .../src/internal/op/EmbeddingLookup.cc             | 49 ++++++++++++++++++++
 .../src/internal/op/EmbeddingLookup.h              | 54 ++++++++++++++++++++++
 .../pure_arm_compute/src/internal/op/NodeVisitor.h |  2 +
 runtimes/pure_arm_compute/src/model.cc             | 14 ++++++
 5 files changed, 126 insertions(+)
 create mode 100644 runtimes/pure_arm_compute/src/internal/op/EmbeddingLookup.cc
 create mode 100644 runtimes/pure_arm_compute/src/internal/op/EmbeddingLookup.h

diff --git a/runtimes/pure_arm_compute/src/compilation.cc b/runtimes/pure_arm_compute/src/compilation.cc
index 71c57d2..9f17014 100644
--- a/runtimes/pure_arm_compute/src/compilation.cc
+++ b/runtimes/pure_arm_compute/src/compilation.cc
@@ -481,6 +481,7 @@ public:
   void visit(const ::internal::tflite::op::Pad::Node &node) override;
   void visit(const ::internal::tflite::op::SpaceToDepth::Node &node) override;
   void visit(const ::internal::tflite::op::L2Pool2D::Implicit::Node &node) override;
+  void visit(const ::internal::tflite::op::EmbeddingLookup::Node &node) override;
 
 private:
   const ::internal::tflite::operand::Set &_ctx;
@@ -3505,6 +3506,12 @@ void Planner::visit(const ::internal::tflite::op::L2Pool2D::Implicit::Node &node
   _builder.addStage(stage);
 }
 
+void Planner::visit(const ::internal::tflite::op::EmbeddingLookup::Node &node)
+{
+  // TODO Implement EMBEDDING_LOOKUP
+  throw std::runtime_error("Not supported");
+}
+
 class AllocationContext final : public IAllocationContext
 {
 public:
diff --git a/runtimes/pure_arm_compute/src/internal/op/EmbeddingLookup.cc b/runtimes/pure_arm_compute/src/internal/op/EmbeddingLookup.cc
new file mode 100644
index 0000000..2f658a1
--- /dev/null
+++ b/runtimes/pure_arm_compute/src/internal/op/EmbeddingLookup.cc
@@ -0,0 +1,49 @@
+#include "internal/op/EmbeddingLookup.h"
+#include "internal/op/NodeVisitor.h"
+
+#include <cassert>
+
+namespace internal
+{
+namespace tflite
+{
+namespace op
+{
+namespace EmbeddingLookup
+{
+
+void Node::accept(NodeVisitor &&v) const { v.visit(*this); }
+
+} // namespace EmbeddingLookup
+} // namespace op
+} // namespace tflite
+} // namespace internal
+
+namespace internal
+{
+namespace tflite
+{
+namespace op
+{
+namespace EmbeddingLookup
+{
+
+Param::Param(uint32_t inputCount, const uint32_t *inputs, uint32_t outputCount,
+             const uint32_t *outputs)
+{
+  assert(inputCount == 2 && outputCount == 1);
+
+  output_index = outputs[0];
+
+  // Each input should be interpreted as follows:
+  //
+  //  0 -> Lookups Index
+  //  1 -> Values Index
+  lookups_index = inputs[0];
+  values_index = inputs[1];
+}
+
+} // namespace EmbeddingLookup
+} // namespace op
+} // namespace tflite
+} // namespace internal
diff --git a/runtimes/pure_arm_compute/src/internal/op/EmbeddingLookup.h b/runtimes/pure_arm_compute/src/internal/op/EmbeddingLookup.h
new file mode 100644
index 0000000..2c9e2bb
--- /dev/null
+++ b/runtimes/pure_arm_compute/src/internal/op/EmbeddingLookup.h
@@ -0,0 +1,54 @@
+#ifndef __INTERNAL_OP_EMBEDDING_LOOKUP_H__
+#define __INTERNAL_OP_EMBEDDING_LOOKUP_H__
+
+#include "internal/op/Node.h"
+
+#include <cstdint>
+
+namespace internal
+{
+namespace tflite
+{
+namespace op
+{
+namespace EmbeddingLookup
+{
+
+struct Param
+{
+  int32_t output_index;
+
+  int32_t lookups_index;
+  int32_t values_index;
+
+  Param() = default;
+  Param(uint32_t inputCount, const uint32_t *inputs, uint32_t outputCount, const uint32_t *outputs);
+};
+
+class Node final : public op::Node
+{
+public:
+  Node(const Param &param) : _param(param)
+  {
+    // DO NOTHING
+  }
+
+public:
+  virtual ~Node() = default;
+
+public:
+  const Param &param(void) const { return _param; }
+
+public:
+  void accept(NodeVisitor &&) const override;
+
+private:
+  const Param _param;
+};
+
+} // namespace EmbeddingLookup
+} // namespace op
+} // namespace tflite
+} // namespace internal
+
+#endif // __INTERNAL_OP_EMBEDDING_LOOKUP_H__
diff --git a/runtimes/pure_arm_compute/src/internal/op/NodeVisitor.h b/runtimes/pure_arm_compute/src/internal/op/NodeVisitor.h
index 7c6d326..3c9ce33 100644
--- a/runtimes/pure_arm_compute/src/internal/op/NodeVisitor.h
+++ b/runtimes/pure_arm_compute/src/internal/op/NodeVisitor.h
@@ -36,6 +36,7 @@
 #include "internal/op/Pad.h"
 #include "internal/op/SpaceToDepth.h"
 #include "internal/op/L2Pool2D.h"
+#include "internal/op/EmbeddingLookup.h"
 
 namespace internal
 {
@@ -87,6 +88,7 @@ struct NodeVisitor
   virtual void visit(const Pad::Node &) = 0;
   virtual void visit(const SpaceToDepth::Node &) = 0;
   virtual void visit(const L2Pool2D::Implicit::Node &) = 0;
+  virtual void visit(const EmbeddingLookup::Node &) = 0;
 };
 
 } // namespace op
diff --git a/runtimes/pure_arm_compute/src/model.cc b/runtimes/pure_arm_compute/src/model.cc
index 43d770a..500b103 100644
--- a/runtimes/pure_arm_compute/src/model.cc
+++ b/runtimes/pure_arm_compute/src/model.cc
@@ -611,6 +611,20 @@ int ANeuralNetworksModel_addOperation(ANeuralNetworksModel *model,
 
       break;
     }
+    case ANEURALNETWORKS_EMBEDDING_LOOKUP:
+    {
+      assert(inputCount == 2);
+      assert(outputCount == 1);
+
+      using internal::tflite::op::EmbeddingLookup::Param;
+      using internal::tflite::op::EmbeddingLookup::Node;
+
+      auto &operations = model->deref().operations();
+
+      operations.emplace_back<Node>(Param{inputCount, inputs, outputCount, outputs});
+
+      break;
+    }
     default:
       throw std::runtime_error{"Not supported operation"};
   };
-- 
2.7.4