argon fusion test for Relu (#447)

* test relu fusion for argon backend and enable permutation over max op

src/ngraph/ops/maximum.hpp

@@ -54,6 +54,7 @@ namespace ngraph
                 return std::make_shared<Maximum>(new_args.at(0), new_args.at(1));
             }
 
+            virtual bool is_commutative() override { return true; }
         protected:
             virtual void generate_adjoints(autodiff::Adjoints& adjoints,
                                            const std::shared_ptr<Node>& delta) override;

test/CMakeLists.txt

@@ -88,7 +88,9 @@ if(NGRAPH_GPU_ENABLE AND LLVM_INCLUDE_DIR)
 endif()
 
 if(NGRAPH_ARGON_ENABLE)
+    include_directories(SYSTEM ${ARGON_TRANSFORMER_INCLUDE_DIR})
     set(BACKEND_NAMES ${BACKEND_NAMES} "ARGON")
+    set(SRC ${SRC} argon_fusion.cpp)
 endif()
 
 foreach(BACKEND_NAME ${BACKEND_NAMES})

test/argon_fusion.cpp

+// ----------------------------------------------------------------------------
+// Copyright 2018 Nervana Systems Inc.
+// 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
+// ----------------------------------------------------------------------------
+
+#include <algorithm>
+#include <cstdio>
+#include <iostream>
+#include <list>
+#include <memory>
+
+#include "gtest/gtest.h"
+#include "ngraph/graph_util.hpp"
+#include "ngraph/log.hpp"
+#include "ngraph/ngraph.hpp"
+#include "ngraph/ops/sum.hpp"
+#include "ngraph/pass/graph_rewrite.hpp"
+#include "ngraph/pass/manager.hpp"
+#include "ngraph/pattern/matcher.hpp"
+#include "ngraph/pattern/op/any.hpp"
+#include "ngraph/pattern/op/label.hpp"
+//
+#include "ngraph/file_util.hpp"
+#include "ngraph/json.hpp"
+#include "ngraph/runtime/argon/ops/relu.hpp"
+#include "ngraph/runtime/argon/pass/argon_fusion.hpp"
+#include "ngraph/serializer.hpp"
+#include "ngraph/util.hpp"
+#include "util/matcher.hpp"
+#include "util/test_tools.hpp"
+
+using namespace ngraph;
+using namespace std;
+
+TEST(Argon_fusion, fuse_max_with_constant_zero_input_as_relu)
+{
+    auto shape_a = Shape{1, 5};
+    auto A = op::Constant::create(element::f32, shape_a, {0, 0, 0, 0, 0});
+    auto B = make_shared<op::Parameter>(element::f32, shape_a);
+    auto max = make_shared<op::Maximum>(A, B);
+    auto shape_rt = Shape{1, 5};
+    auto f = make_shared<Function>(max, op::Parameters{B});
+
+    auto manager = runtime::Manager::get("ARGON");
+    auto external = manager->compile(f);
+    auto backend = manager->allocate_backend();
+    auto cf = backend->make_call_frame(external);
+
+    auto b = backend->make_primary_tensor_view(element::f32, shape_a);
+    copy_data(b, vector<float>{1, 8, -8, 17, -0.5});
+    auto result = backend->make_primary_tensor_view(element::f32, shape_rt);
+    vector<float> expected{1, 8, 0, 17, 0};
+
+    cf->call({b}, {result});
+    EXPECT_EQ(read_vector<float>(result), expected);
+}