[crankshaft] TODO bankruptcy.

src/crankshaft/hydrogen-alias-analysis.h

 // Copyright 2013 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_CRANKSHAFT_HYDROGEN_ALIAS_ANALYSIS_H_
 #define V8_CRANKSHAFT_HYDROGEN_ALIAS_ANALYSIS_H_
 
 #include "src/crankshaft/hydrogen.h"
 
 namespace v8 {
@@ skipping 26 matching lines @@
       if (b->IsConstant()) return kNoAlias;
     }
     if (b->IsAllocate() || b->IsInnerAllocatedObject()) {
       // An allocation can never alias a parameter or a constant.
       if (a->IsParameter()) return kNoAlias;
       if (a->IsConstant()) return kNoAlias;
     }
 
     // Constant objects can be distinguished statically.
     if (a->IsConstant()) {
-      // TODO(titzer): DataEquals() is more efficient, but that's protected.
       return a->Equals(b) ? kMustAlias : kNoAlias;
     }
     return kMayAlias;
   }
 
   // Checks whether the objects referred to by the given instructions may
   // ever be aliases. Note that this is more conservative than checking
   // {Query(a, b) == kMayAlias}, since this method considers kMustAlias
   // objects to also be may-aliasing.
   inline bool MayAlias(HValue* a, HValue* b) {
     return Query(a, b) != kNoAlias;
   }
 
   inline bool MustAlias(HValue* a, HValue* b) {
     return Query(a, b) == kMustAlias;
   }
 
   inline bool NoAlias(HValue* a, HValue* b) {
     return Query(a, b) == kNoAlias;
   }
 };
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_CRANKSHAFT_HYDROGEN_ALIAS_ANALYSIS_H_