Break Crankshaft into phases.

src/compiler.cc

 // Copyright 2012 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
@@ skipping 290 matching lines @@
                             info->zone());
   HGraphBuilder builder(info, &oracle);
   HPhase phase(HPhase::kTotal);
   HGraph* graph = builder.CreateGraph();
   if (info->isolate()->has_pending_exception()) {
     info->SetCode(Handle<Code>::null());
     return false;
   }
 
   if (graph != NULL) {
-    Handle<Code> optimized_code = graph->Compile();
-    if (!optimized_code.is_null()) {
-      info->SetCode(optimized_code);
-      FinishOptimization(info->closure(), start);
-      return true;
+    SmartArrayPointer<char> bailout_reason;
+    if (!graph->Optimize(&bailout_reason)) {
+      if (!bailout_reason.is_empty()) builder.Bailout(*bailout_reason);
+    } else {
+      LChunkBase* chunk = LChunkBase::NewChunk(graph);
+      if (chunk != NULL) {
+        Handle<Code> optimized_code = chunk->Codegen();
+        if (!optimized_code.is_null()) {
+          info->SetCode(optimized_code);
+          FinishOptimization(info->closure(), start);
+          return true;
+        }
+      }
     }
   }
 
   // Keep using the shared code.
   info->AbortOptimization();
   if (!builder.inline_bailout()) {
     // Mark the shared code as unoptimizable unless it was an inlined
     // function that bailed out.
     info->shared_info()->DisableOptimization();
   }
@@ skipping 544 matching lines @@
     }
   }
 
   GDBJIT(AddCode(Handle<String>(shared->DebugName()),
                  Handle<Script>(info->script()),
                  Handle<Code>(info->code()),
                  info));
 }
 
 } }  // namespace v8::internal