IVGCVSW-5410 Add front-end support for CAST

IVGCVSW-5415 Add TfLiteParser support for CAST

 * Added front end support for CAST, including support in the
Reference workload, Serialization, Deserializtion, Unit tests, and
TfLiteParser.

Signed-off-by: mathad01 <matthew.haddon@arm.com>
Change-Id: Iaf670ca5912a21ed6bc84f7f83a68b42154846bb

1 files changed, 123 insertions, 0 deletions

diff --git a/src/armnnDeserializer/test/DeserializeCast.cpp b/src/armnnDeserializer/test/DeserializeCast.cpp
new file mode 100644
index 0000000000..c8e3e10871
--- /dev/null
+++ b/src/armnnDeserializer/test/DeserializeCast.cpp
@@ -0,0 +1,123 @@
+//
+// Copyright © 2021 Arm Ltd and Contributors. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#include "ParserFlatbuffersSerializeFixture.hpp"
+#include <armnnDeserializer/IDeserializer.hpp>
+
+#include <QuantizeHelper.hpp>
+#include <ResolveType.hpp>
+
+#include <boost/test/unit_test.hpp>
+
+#include <string>
+
+BOOST_AUTO_TEST_SUITE(Deserializer)
+
+
+struct CastFixture : public ParserFlatbuffersSerializeFixture
+{
+    explicit CastFixture(const std::string& inputShape,
+                         const std::string& outputShape,
+                         const std::string& inputDataType,
+                         const std::string& outputDataType)
+    {
+        m_JsonString = R"(
+            {
+                inputIds: [0],
+                outputIds: [2],
+                layers: [
+                    {
+                        layer_type: "InputLayer",
+                        layer: {
+                            base: {
+                                layerBindingId: 0,
+                                base: {
+                                    index: 0,
+                                    layerName: "inputTensor",
+                                    layerType: "Input",
+                                    inputSlots: [{
+                                        index: 0,
+                                        connection: { sourceLayerIndex:0, outputSlotIndex:0 },
+                                    }],
+                                    outputSlots: [{
+                                        index: 0,
+                                        tensorInfo: {
+                                            dimensions: )" + inputShape + R"(,
+                                            dataType: )" + inputDataType + R"(
+                                        }
+                                    }]
+                                }
+                            }
+                        }
+                    },
+                    {
+                        layer_type: "CastLayer",
+                        layer: {
+                            base: {
+                                 index:1,
+                                 layerName: "CastLayer",
+                                 layerType: "Cast",
+                                 inputSlots: [{
+                                     index: 0,
+                                     connection: { sourceLayerIndex:0, outputSlotIndex:0 },
+                                 }],
+                                 outputSlots: [{
+                                     index: 0,
+                                     tensorInfo: {
+                                         dimensions: )" + outputShape + R"(,
+                                         dataType: )" + outputDataType + R"(
+                                     },
+                                 }],
+                            },
+                        },
+                    },
+                    {
+                        layer_type: "OutputLayer",
+                        layer: {
+                            base:{
+                                layerBindingId: 2,
+                                base: {
+                                    index: 2,
+                                    layerName: "outputTensor",
+                                    layerType: "Output",
+                                    inputSlots: [{
+                                        index: 0,
+                                        connection: { sourceLayerIndex:1, outputSlotIndex:0 },
+                                    }],
+                                    outputSlots: [{
+                                        index: 0,
+                                        tensorInfo: {
+                                            dimensions: )" + outputShape + R"(,
+                                            dataType: )" + outputDataType + R"(
+                                        },
+                                    }],
+                                }
+                            }
+                        },
+                    }
+                ]
+            }
+        )";
+        Setup();
+    }
+};
+
+struct SimpleCastFixture : CastFixture
+{
+    SimpleCastFixture() : CastFixture("[ 1, 6 ]",
+                                      "[ 1, 6 ]",
+                                      "Signed32",
+                                      "Float32") {}
+};
+
+BOOST_FIXTURE_TEST_CASE(SimpleCast, SimpleCastFixture)
+{
+RunTest<2, armnn::DataType::Signed32 , armnn::DataType::Float32>(
+0,
+{{"inputTensor",  { 0,   -1,   5,   -100,   200,   -255 }}},
+{{"outputTensor", { 0.0f, -1.0f, 5.0f, -100.0f, 200.0f, -255.0f }}});
+}
+
+BOOST_AUTO_TEST_SUITE_END()