question: private void registerHeapVariables ( IR ir ) { SSADictionary dictionary = ir . HIRInfo . dictionary ; for ( Enumeration < BasicBlock > bbe = ir . getBasicBlocks ( ) ; bbe . hasMoreElements ( ) ; ) { BasicBlock b = bbe . nextElement ( ) ; for ( Enumeration < Instruction > e = b . forwardInstrEnumerator ( ) ; e . hasMoreElements ( ) ; ) { Instruction s = e . nextElement ( ) ; if ( s . isImplicitLoad ( ) || s . isImplicitStore ( ) || s . isAllocation ( ) || Phi . conforms ( s ) || s . isPEI ( ) || Label . conforms ( s ) || BBend . conforms ( s ) || s . getOpcode ( ) == UNINT_BEGIN_opcode || s . getOpcode ( ) == UNINT_END_opcode ) { dictionary . registerInstruction ( s , b ) ; } } } }
target:  Register every instruction in this method with the implicit heap array SSA lookaside structure.