IVGCVSW-2380 Add Greater operator to TfParser

* Unit tests in Greater.cpp

Change-Id: Ifb3e4c33be2d6235e33889bb63e6abd78bd7d8b6

3 files changed, 153 insertions, 0 deletions

diff --git a/src/armnnTfParser/TfParser.cpp b/src/armnnTfParser/TfParser.cpp
index b646437f36..45c039bb15 100644
--- a/src/armnnTfParser/TfParser.cpp
+++ b/src/armnnTfParser/TfParser.cpp
@@ -333,6 +333,7 @@ const std::map<std::string, TfParser::OperationParsingFunction> TfParser::ms_Ope
     { "DepthwiseConv2dNative", &TfParser::ParseDepthwiseConv2D },
     { "ExpandDims",            &TfParser::ParseExpandDims },
     { "FusedBatchNorm",        &TfParser::ParseFusedBatchNorm },
+    { "Greater",               &TfParser::ParseGreater},
     { "ConcatV2",              &TfParser::ParseConcat },
     { "LRN",                   &TfParser::ParseLrn },
     { "MatMul",                &TfParser::ParseMatMul },
@@ -1592,6 +1593,18 @@ ParsedTfOperationPtr TfParser::ProcessElementwiseLayer(
     return std::make_unique<SingleLayerParsedTfOperation>(this, nodeDef, layer);
 }
 
+ParsedTfOperationPtr TfParser::ParseGreater(const tensorflow::NodeDef& nodeDef,
+                                            const tensorflow::GraphDef& graphDef)
+{
+    std::pair<armnn::IOutputSlot*, armnn::IOutputSlot*> inputLayers = ProcessElementwiseInputSlots(nodeDef, "Greater");
+    IOutputSlot* input0Slot = inputLayers.first;
+    IOutputSlot* input1Slot = inputLayers.second;
+
+    IConnectableLayer* const layer = m_Network->AddGreaterLayer(nodeDef.name().c_str());
+
+    return ProcessElementwiseLayer(input0Slot, input1Slot, layer, nodeDef);
+}
+
 ParsedTfOperationPtr TfParser::ParseEqual(const tensorflow::NodeDef& nodeDef,
                                           const tensorflow::GraphDef& graphDef)
 {
diff --git a/src/armnnTfParser/TfParser.hpp b/src/armnnTfParser/TfParser.hpp
index 3aba60cc0a..55797471e2 100644
--- a/src/armnnTfParser/TfParser.hpp
+++ b/src/armnnTfParser/TfParser.hpp
@@ -158,6 +158,7 @@ private:
     ParsedTfOperationPtr ParseEqual(const tensorflow::NodeDef& nodeDef, const tensorflow::GraphDef& graphDef);
     ParsedTfOperationPtr ParseMaximum(const tensorflow::NodeDef& nodeDef, const tensorflow::GraphDef& graphDef);
     ParsedTfOperationPtr ParseMinimum(const tensorflow::NodeDef& nodeDef, const tensorflow::GraphDef& graphDef);
+    ParsedTfOperationPtr ParseGreater(const tensorflow::NodeDef& nodeDef, const tensorflow::GraphDef& graphDef);
     ParsedTfOperationPtr ParsePad(const tensorflow::NodeDef& nodeDef, const tensorflow::GraphDef& graphDef);
     ParsedTfOperationPtr ParseSub(const tensorflow::NodeDef& nodeDef, const tensorflow::GraphDef& graphDef);
     ParsedTfOperationPtr AddActivationLayer(const tensorflow::NodeDef& nodeDef, armnn::ActivationDescriptor& desc);
diff --git a/src/armnnTfParser/test/Greater.cpp b/src/armnnTfParser/test/Greater.cpp
new file mode 100644
index 0000000000..f11c199599
--- /dev/null
+++ b/src/armnnTfParser/test/Greater.cpp
@@ -0,0 +1,139 @@
+//
+// Copyright © 2017 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include <boost/test/unit_test.hpp>
+#include "armnnTfParser/ITfParser.hpp"
+#include "ParserPrototxtFixture.hpp"
+
+BOOST_AUTO_TEST_SUITE(TensorflowParser)
+
+struct GreaterFixture : public armnnUtils::ParserPrototxtFixture<armnnTfParser::ITfParser>
+{
+    GreaterFixture()
+    {
+        m_Prototext = R"(
+node {
+  name: "input0"
+  op: "Placeholder"
+  attr {
+    key: "dtype"
+    value {
+      type: DT_FLOAT
+    }
+  }
+  attr {
+    key: "shape"
+    value {
+      shape {
+      }
+    }
+  }
+}
+node {
+  name: "input1"
+  op: "Placeholder"
+  attr {
+    key: "dtype"
+    value {
+      type: DT_FLOAT
+    }
+  }
+  attr {
+    key: "shape"
+    value {
+      shape {
+      }
+    }
+  }
+}
+node {
+  name: "output"
+  op: "Greater"
+  input: "input0"
+  input: "input1"
+  attr {
+    key: "T"
+    value {
+      type: DT_FLOAT
+    }
+  }
+}
+        )";
+    }
+};
+
+BOOST_FIXTURE_TEST_CASE(ParseGreaterUnsupportedBroadcast, GreaterFixture)
+{
+    BOOST_REQUIRE_THROW(Setup({ { "input0", {2, 3} },
+                                { "input1", {1, 2, 2, 3} } },
+                              { "output" }),
+                        armnn::ParseException);
+}
+
+struct GreaterFixtureAutoSetup : public GreaterFixture
+{
+    GreaterFixtureAutoSetup(const armnn::TensorShape& input0Shape,
+                            const armnn::TensorShape& input1Shape)
+                : GreaterFixture()
+    {
+        Setup({ { "input0", input0Shape },
+                { "input1", input1Shape } },
+              { "output" });
+    }
+};
+
+struct GreaterFixtureTwoByTwo : public GreaterFixtureAutoSetup
+{
+    GreaterFixtureTwoByTwo() : GreaterFixtureAutoSetup({2, 2}, {2, 2}) {}
+};
+
+BOOST_FIXTURE_TEST_CASE(ParseGreaterTwoByTwo, GreaterFixtureTwoByTwo)
+{
+    RunTest<2>({ { "input0", { 1.0f, 2.0f, 3.0f, 4.0f} },
+                 { "input1", { 1.0f, 5.0f, 2.0f, 2.0f} } },
+               { { "output", { 0.0f, 0.0f, 1.0f, 1.0f} } });
+}
+
+struct GreaterBroadcast1DAnd4D : public GreaterFixtureAutoSetup
+{
+    GreaterBroadcast1DAnd4D() : GreaterFixtureAutoSetup({1}, {1,1,2,2}) {}
+};
+
+BOOST_FIXTURE_TEST_CASE(ParseGreaterBroadcast1DToTwoByTwo, GreaterBroadcast1DAnd4D)
+{
+    RunTest<4>({ { "input0", { 2.0f } },
+                 { "input1", { 1.0f, 2.0f, 3.0f, 2.0f } } },
+               { { "output", { 1.0f, 0.0f, 0.0f, 0.0f } } });
+}
+
+struct GreaterBroadcast4DAnd1D : public GreaterFixtureAutoSetup
+{
+    GreaterBroadcast4DAnd1D() : GreaterFixtureAutoSetup({1,1,2,2}, {1}) {}
+};
+
+BOOST_FIXTURE_TEST_CASE(ParseGreaterBroadcast4DAnd1D, GreaterBroadcast4DAnd1D)
+{
+    RunTest<4>({ { "input0", { 1.0f, 2.0f, 3.0f, 2.0f } },
+                 { "input1", { 3.0f } } },
+               { { "output", { 0.0f, 0.0f, 0.0f, 0.0f } } });
+}
+
+struct GreaterMultiDimBroadcast : public GreaterFixtureAutoSetup
+{
+    GreaterMultiDimBroadcast() : GreaterFixtureAutoSetup({1,1,2,1}, {1,2,1,3}) {}
+};
+
+BOOST_FIXTURE_TEST_CASE(ParseGreaterMultiDimBroadcast, GreaterMultiDimBroadcast)
+{
+    RunTest<4>({ { "input0", { 1.0f, 2.0f } },
+                 { "input1", { 1.0f, 2.0f, 3.0f,
+                               3.0f, 2.0f, 2.0f } } },
+               { { "output", { 0.0f, 0.0f, 0.0f,
+                               1.0f, 0.0f, 0.0f,
+                               0.0f, 0.0f, 0.0f,
+                               0.0f, 0.0f, 0.0f } } });
+}
+
+BOOST_AUTO_TEST_SUITE_END()