Initial support for marking live code.

src/compiler.cc

-// Copyright 2009 the V8 project authors. All rights reserved.
+// Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
 //       with the distribution.
@@ skipping 87 matching lines @@
         ReachingDefinitions rd(builder.postorder(),
                                builder.body_definitions(),
                                variable_count);
         rd.Compute();
 
         TypeAnalyzer ta(builder.postorder(),
                         builder.body_definitions(),
                         variable_count,
                         function->num_parameters());
         ta.Compute();
+
+        MarkLiveCode(builder.preorder(),
+                     builder.body_definitions(),
+                     variable_count);
       }
     }
 
 #ifdef DEBUG
     if (FLAG_print_graph_text && !builder.HasStackOverflow()) {
       builder.graph()->PrintText(function, builder.postorder());
     }
 #endif
   }
 
@@ skipping 395 matching lines @@
           ReachingDefinitions rd(builder.postorder(),
                                  builder.body_definitions(),
                                  variable_count);
           rd.Compute();
 
           TypeAnalyzer ta(builder.postorder(),
                           builder.body_definitions(),
                           variable_count,
                           literal->num_parameters());
           ta.Compute();
+
+          MarkLiveCode(builder.preorder(),
+                       builder.body_definitions(),
+                       variable_count);
         }
       }
 
 #ifdef DEBUG
       if (FLAG_print_graph_text && !builder.HasStackOverflow()) {
         builder.graph()->PrintText(literal, builder.postorder());
       }
 #endif
     }
 
@@ skipping 111 matching lines @@
       LOG(CodeCreateEvent(tag, *code, *func_name));
       OProfileAgent::CreateNativeCodeRegion(*func_name,
                                             code->instruction_start(),
                                             code->instruction_size());
     }
   }
 }
 #endif
 
 } }  // namespace v8::internal