Store optimized flow graph statistics on the function itself.

runtime/vm/compiler.cc

 // 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.
 
 #include "vm/compiler.h"
 
 #include "vm/assembler.h"
 
 #include "vm/ast_printer.h"
 #include "vm/code_generator.h"
@@ skipping 165 matching lines @@
       flow_graph->ComputeUseLists();
 
       FlowGraphOptimizer optimizer(flow_graph);
       optimizer.ApplyICData();
 
       // Compute the use lists.
       flow_graph->ComputeUseLists();
 
       // Inlining (mutates the flow graph)
       if (FLAG_use_inlining) {
+        // Collect graph info and store it on the function.
+        // We might later use it for an early bailout from the inlining.
+        FlowGraphInliner::CollectGraphInfo(flow_graph);

[Kevin Millikin (Google), 2012/12/13 16:43:40]

Why not move this down into FlowGraphInliner::Inline()?  Just to avoid timing
it?

[Vyacheslav Egorov (Google), 2012/12/13 18:54:46]

Done.

+
         TimerScope timer(FLAG_compiler_stats,
                          &CompilerStats::graphinliner_timer);
         FlowGraphInliner inliner(flow_graph);
         inliner.Inline();
         // Use lists are maintained and validated by the inliner.
       }
 
       // Propagate types and eliminate more type tests.
       if (FLAG_propagate_types) {
         FlowGraphTypePropagator propagator(flow_graph);
@@ skipping 442 matching lines @@
     result = isolate->object_store()->sticky_error();
     isolate->object_store()->clear_sticky_error();
     isolate->set_long_jump_base(base);
     return result.raw();
   }
   UNREACHABLE();
   return Object::null();
 }
 
 }  // namespace dart