Foundation for the use of informative definitions in Crankshaft.

src/code-stubs-hydrogen.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 17 matching lines @@
 #include "v8.h"
 
 #include "code-stubs.h"
 #include "hydrogen.h"
 #include "lithium.h"
 
 namespace v8 {
 namespace internal {
 
 
-// TODO(svenpanne) Merge with OptimizingCompiler::OptimizeGraph().
 static LChunk* OptimizeGraph(HGraph* graph) {
   AssertNoAllocation no_gc;
   NoHandleAllocation no_handles;
   NoHandleDereference no_deref;
 
   ASSERT(graph != NULL);
   SmartArrayPointer<char> bailout_reason;
   if (!graph->Optimize(&bailout_reason)) {
     FATAL(bailout_reason.is_empty() ? "unknown" : *bailout_reason);
   }
@@ skipping 73 matching lines @@
   Stub* casted_stub() { return static_cast<Stub*>(stub()); }
 };
 
 
 template <>
 void CodeStubGraphBuilder<KeyedLoadFastElementStub>::BuildCodeStub() {
   Zone* zone = this->zone();
 
   HInstruction* load = BuildUncheckedMonomorphicElementAccess(
       GetParameter(0), GetParameter(1), NULL, NULL,
-      casted_stub()->is_js_array(), casted_stub()->elements_kind(), false);
+      casted_stub()->is_js_array(), casted_stub()->elements_kind(),
+      false, Representation::Tagged());
   AddInstruction(load);
 
   HReturn* ret = new(zone) HReturn(load, context());
   current_block()->Finish(ret);
 }
 
 
 Handle<Code> KeyedLoadFastElementStub::GenerateCode() {
   CodeStubGraphBuilder<KeyedLoadFastElementStub> builder(this);
   LChunk* chunk = OptimizeGraph(builder.CreateGraph());
   return chunk->Codegen(Code::COMPILED_STUB);
 }
 
 
 } }  // namespace v8::internal