Return the new state from local analysis in flow-engine.

src/hydrogen-flow-engine.h

 // Copyright 2013 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 89 matching lines @@
       loop_effects_(graph->blocks()->length(), zone) {
     loop_effects_.AddBlock(NULL, graph_->blocks()->length(), zone);
   }
 
   // Local analysis. Iterates over the instructions in the given block.
   State* AnalyzeOneBlock(HBasicBlock* block, State* state) {
     // Go through all instructions of the current block, updating the state.
     for (HInstructionIterator it(block); !it.Done(); it.Advance()) {
       state = state->Process(it.Current(), zone_);
     }
-    return StateAt(block);
+    return state;
   }
 
   // Global analysis. Iterates over all blocks that are dominated by the given
   // block, starting with the initial state. Computes effects for nested loops.
   void AnalyzeDominatedBlocks(HBasicBlock* root, State* initial) {
     InitializeStates();
     SetStateAt(root, initial);
 
     // Iterate all dominated blocks starting from the given start block.
     for (int i = root->block_id(); i < graph_->blocks()->length(); i++) {
@@ skipping 105 matching lines @@
   ZoneList<int> pred_counts_;        // Finished predecessors (by block id).
 #endif
   ZoneList<State*> block_states_;    // Block states (by block id).
   ZoneList<Effects*> loop_effects_;  // Loop effects (by block id).
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_FLOW_ENGINE_H_