Common pass registration for codegen and Dex (#1642)

* Common pass registration for codegen and Dex

* Make return indices optional for cpu workspace insertion

src/ngraph/runtime/cpu/cpu_external_function.cpp

@@ -368,20 +368,8 @@ static void
     writer << "}\n";
 }
 
-void runtime::cpu::CPU_ExternalFunction::compile()
+void runtime::cpu::CPU_ExternalFunction::register_common_passes(ngraph::pass::Manager& pass_manager)
 {
-    if (m_is_compiled)
-    {
-        return;
-    }
-
-    m_mkldnn_emitter.reset(new MKLDNNEmitter());
-
-    ngraph::pass::Manager pass_manager;
-
-    // nv_cwi is required only by some frontends
-    // in which case they should run this pass(CPUWorkspaceInsertion) explicitly
-    NodeVector nv_cwi;
     pass_manager.register_pass<ngraph::pass::LikeReplacement>();
     pass_manager.register_pass<ngraph::pass::NopElimination>();
     // TODO (pruthvi): Enable all the disabeled RNN fusion graph pass after fixing
@@ -396,11 +384,25 @@ void runtime::cpu::CPU_ExternalFunction::compile()
     pass_manager.register_pass<ngraph::pass::CoreFusion>();
     pass_manager.register_pass<runtime::cpu::pass::CPUFusion>();
     pass_manager.register_pass<runtime::cpu::pass::CPUCollapseDims>();
-    pass_manager.register_pass<runtime::cpu::pass::CPUWorkspaceInsertion>(nv_cwi);
+    NodeVector nv_cwi; // We dont need CPUWorkspaceInsertion to return list of indices
+    pass_manager.register_pass<runtime::cpu::pass::CPUWorkspaceInsertion>(nv_cwi, false);
     pass_manager.register_pass<runtime::cpu::pass::CPUAssignment>(this);
     pass_manager.register_pass<runtime::cpu::pass::CPULayout>(this);
     pass_manager.register_pass<runtime::cpu::pass::CPUPostLayoutOptimizations>();
     pass_manager.register_pass<ngraph::pass::GetOutputElementElimination>();
+}
+
+void runtime::cpu::CPU_ExternalFunction::compile()
+{
+    if (m_is_compiled)
+    {
+        return;
+    }
+
+    m_mkldnn_emitter.reset(new MKLDNNEmitter());
+
+    ngraph::pass::Manager pass_manager;
+    register_common_passes(pass_manager);
     unordered_map<Node*, Node*> node_function_map;
     string common_function_string;
     auto femitter = bind(&ngraph::runtime::cpu::CPU_ExternalFunction::emit_op_as_function,
@@ -1132,27 +1134,8 @@ void runtime::cpu::CPU_ExternalFunction::build()
     m_mkldnn_emitter.reset(new MKLDNNEmitter());
 
     ngraph::pass::Manager pass_manager;
+    register_common_passes(pass_manager);
 
-    // nv_cwi is required only by some frontends
-    // in which case they should run this pass(CPUWorkspaceInsertion) explicitly
-    NodeVector nv_cwi;
-    pass_manager.register_pass<ngraph::pass::NopElimination>();
-    // TODO (pruthvi): Enable all the disabeled RNN fusion graph pass after fixing
-    // failing mxnet unit tests.
-    // pass_manager.register_pass<runtime::cpu::pass::LSTMFusion>();
-    // pass_manager.register_pass<runtime::cpu::pass::RNNFusion>();
-    // pass_manager.register_pass<runtime::cpu::pass::ConcatInputs>();
-    pass_manager.register_pass<ngraph::pass::AlgebraicSimplification>();
-    pass_manager.register_pass<runtime::cpu::pass::CPUBatchFusion>();
-    pass_manager.register_pass<ngraph::pass::CommonSubexpressionElimination>();
-    pass_manager.register_pass<ngraph::pass::CoreFusion>();
-    pass_manager.register_pass<runtime::cpu::pass::CPUFusion>();
-    pass_manager.register_pass<runtime::cpu::pass::CPUCollapseDims>();
-    pass_manager.register_pass<runtime::cpu::pass::CPUWorkspaceInsertion>(nv_cwi);
-    pass_manager.register_pass<runtime::cpu::pass::CPUAssignment>(this);
-    pass_manager.register_pass<runtime::cpu::pass::CPULayout>(this);
-    pass_manager.register_pass<runtime::cpu::pass::CPUPostLayoutOptimizations>();
-    pass_manager.register_pass<ngraph::pass::GetOutputElementElimination>();
     pass_manager.register_pass<ngraph::pass::Liveness>();
     pass_manager.register_pass<ngraph::pass::MemoryLayout>(size_t(s_memory_pool_alignment), true);
     pass_manager.run_passes(m_function, false);

src/ngraph/runtime/cpu/cpu_external_function.hpp

@@ -36,6 +36,7 @@
 #endif
 
 #include "ngraph/function.hpp"
+#include "ngraph/pass/manager.hpp"
 #include "ngraph/runtime/cpu/cpu_call_frame.hpp"
 #include "ngraph/runtime/cpu/cpu_layout_descriptor.hpp"
 #include "ngraph/runtime/cpu/cpu_tensor_view_wrapper.hpp"
@@ -139,6 +140,9 @@ namespace ngraph
 #endif
 
             private:
+                // Register passes that are common to codegen and DEX
+                void register_common_passes(ngraph::pass::Manager& pass_manager);
+
                 // For non-destructive passthrough kernels, propagate function
                 // input buffers to internal ops
                 void propagate_in_place_input(ngraph::descriptor::Output* output,

src/ngraph/runtime/cpu/pass/cpu_workspace_insertion.cpp

@@ -168,6 +168,9 @@ bool runtime::cpu::pass::CPUWorkspaceInsertion::transform(pattern::Matcher& m)
                                                          m_max_pool->get_padding_above());
 
     ngraph::replace_node(m_max_pool_bprop, max_pool_with_indices_bprop);
-    m_indices_list.push_back(max_pool_with_indices_indices);
+    if (m_return_indices)
+    {
+        m_indices_list.push_back(max_pool_with_indices_indices);
+    }
     return true;
 }

src/ngraph/runtime/cpu/pass/cpu_workspace_insertion.hpp

@@ -36,9 +36,10 @@ namespace ngraph
 class ngraph::runtime::cpu::pass::CPUWorkspaceInsertion : public ngraph::pass::FunctionPass
 {
 public:
-    CPUWorkspaceInsertion(ngraph::NodeVector& indices_list)
+    CPUWorkspaceInsertion(ngraph::NodeVector& indices_list, bool return_indices = true)
         : FunctionPass()
         , m_indices_list(indices_list)
+        , m_return_indices(return_indices)
     {
     }
 
@@ -46,5 +47,6 @@ public:
 
 private:
     ngraph::NodeVector& m_indices_list;
+    bool m_return_indices;
     bool transform(ngraph::pattern::Matcher& m);
 };