VM: Inlining of small constructors/factories, optimizations on inlined function bodies

runtime/vm/flow_graph_optimizer.h

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_FLOW_GRAPH_OPTIMIZER_H_
 #define VM_FLOW_GRAPH_OPTIMIZER_H_
 
 #include "vm/intermediate_language.h"
 #include "vm/flow_graph.h"
 
 namespace dart {
 
 class CSEInstructionMap;
 template <typename T> class GrowableArray;
 class ParsedFunction;
 
 class FlowGraphOptimizer : public FlowGraphVisitor {
  public:
   explicit FlowGraphOptimizer(

[srdjan, 2015/12/01 16:36:26]

remove explicit

[Florian Schneider, 2015/12/02 12:52:18]

Thanks, done.

       FlowGraph* flow_graph,
-      bool use_speculative_inlining = false,
-      GrowableArray<intptr_t>* inlining_black_list = NULL)
+      bool use_speculative_inlining,
+      GrowableArray<intptr_t>* inlining_black_list)
       : FlowGraphVisitor(flow_graph->reverse_postorder()),
         flow_graph_(flow_graph),
         use_speculative_inlining_(use_speculative_inlining),
         inlining_black_list_(inlining_black_list) {
     ASSERT(!use_speculative_inlining || (inlining_black_list != NULL));
   }
   virtual ~FlowGraphOptimizer() {}
 
   FlowGraph* flow_graph() const { return flow_graph_; }
 
@@ skipping 414 matching lines @@
 // Optimize spill stores inside try-blocks by identifying values that always
 // contain a single known constant at catch block entry.
 class TryCatchAnalyzer : public AllStatic {
  public:
   static void Optimize(FlowGraph* flow_graph);
 };
 
 }  // namespace dart
 
 #endif  // VM_FLOW_GRAPH_OPTIMIZER_H_