J9TreeEvaluator.hpp

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 * forth in the Eclipse Public License, v. 2.0 are satisfied: GNU
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#ifndef J9_ARM_TREE_EVALUATOR_INCL
#define J9_ARM_TREE_EVALUATOR_INCL

/*
 * The following #define and typedef must appear before any #includes in this file
 */
#ifndef J9_TREE_EVALUATOR_CONNECTOR
#define J9_TREE_EVALUATOR_CONNECTOR
namespace J9 { namespace ARM { class TreeEvaluator; } }
namespace J9 { typedef J9::ARM::TreeEvaluator TreeEvaluatorConnector; }
#else
#error J9::ARM::TreeEvaluator expected to be a primary connector, but a J9 connector is already defined
#endif

#include "compiler/codegen/J9TreeEvaluator.hpp"  // include parent
#include "il/LabelSymbol.hpp"

namespace J9
{

namespace ARM
{

class OMR_EXTENSIBLE TreeEvaluator: public J9::TreeEvaluator
   {
   public:

   static TR::Register *NULLCHKEvaluator(TR::Node *node, TR::CodeGenerator *cg);
   static TR::Register *resolveAndNULLCHKEvaluator(TR::Node *node, TR::CodeGenerator *cg);
   static TR::Register *evaluateNULLCHKWithPossibleResolve(TR::Node *node, bool needResolution, TR::CodeGenerator *cg);
   static void genWrtbarForArrayCopy(TR::Node *node, TR::Register *srcObjReg, TR::Register *dstObjReg, TR::CodeGenerator *cg);

   /*
    * Generates instructions to fill in the J9JITWatchedStaticFieldData.fieldAddress, J9JITWatchedStaticFieldData.fieldClass for static fields,
    * and J9JITWatchedInstanceFieldData.offset for instance fields at runtime. Used for fieldwatch support.
    * @param dataSnippetRegister: Optional, can be used to pass the address of the snippet inside the register.  
    */
   static void generateFillInDataBlockSequenceForUnresolvedField (TR::CodeGenerator *cg, TR::Node *node, TR::Snippet *dataSnippet, bool isWrite, TR::Register *sideEffectRegister, TR::Register *dataSnippetRegister);

   /*
    * Generate instructions for static/instance field access report.
    * @param dataSnippetRegister: Optional, can be used to pass the address of the snippet inside the register.  
    */
   static void generateTestAndReportFieldWatchInstructions(TR::CodeGenerator *cg, TR::Node *node, TR::Snippet *dataSnippet, bool isWrite, TR::Register *sideEffectRegister, TR::Register *valueReg, TR::Register *dataSnippetRegister);

   };

}

}

#endif