com.ibm.wala.ssa

Class SSALoadIndirectInstruction

java.lang.Object

com.ibm.wala.ssa.SSAInstruction

com.ibm.wala.ssa.SSAAbstractUnaryInstruction

com.ibm.wala.ssa.SSALoadIndirectInstruction

public class SSALoadIndirectInstruction
extends SSAAbstractUnaryInstruction

A load from a pointer. v = *p

Nested Class Summary

Nested classes/interfaces inherited from class com.ibm.wala.ssa.SSAInstruction

SSAInstruction.IVisitor, SSAInstruction.Visitor

Field Summary

Fields inherited from class com.ibm.wala.ssa.SSAAbstractUnaryInstruction

result, val

Fields inherited from class com.ibm.wala.ssa.SSAInstruction

iindex, NO_INDEX

Constructor Summary

Constructors

Constructor and Description
SSALoadIndirectInstruction(int iindex, int lval, TypeReference t, int addressVal)

Method Summary

Methods

Modifier and Type	Method and Description
SSAInstruction	copyForSSA(SSAInstructionFactory insts, int[] defs, int[] uses) This method is meant to be used during SSA conversion for an IR that is not in SSA form.
TypeReference	getLoadedType()
String	toString(SymbolTable symbolTable)
void	visit(SSAInstruction.IVisitor v) Apply an IVisitor to this instruction.

Methods inherited from class com.ibm.wala.ssa.SSAAbstractUnaryInstruction

getDef, getDef, getNumberOfDefs, getNumberOfUses, getUse, hasDef, hashCode, isFallThrough

Methods inherited from class com.ibm.wala.ssa.SSAInstruction

equals, getExceptionTypes, getValueString, isPEI, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

SSALoadIndirectInstruction

public SSALoadIndirectInstruction(int iindex,
                          int lval,
                          TypeReference t,
                          int addressVal)

Parameters:

lval - the value number which is def'fed by this instruction.

addressVal - the value number holding the pointer p deferenced (*p)

Method Detail

getLoadedType

public TypeReference getLoadedType()

copyForSSA

public SSAInstruction copyForSSA(SSAInstructionFactory insts,
                        int[] defs,
                        int[] uses)

Description copied from class: SSAInstruction

This method is meant to be used during SSA conversion for an IR that is not in SSA form. It creates a new SSAInstruction of the same type as the receiver, with a combination of the receiver's uses and defs and those from the method parameters. In particular, if the 'defs' parameter is null, then the new instruction has the same defs as the receiver. If 'defs' is not null, it must be an array with a size equal to the number of defs that the receiver instruction has. In this case, the new instruction has defs taken from the array. The uses of the new instruction work in the same way with the 'uses' parameter. Note that this only applies to CAst-based IR translation, since Java bytecode-based IR generation uses a different SSA construction mechanism. TODO: move this into the SSAInstructionFactory

Specified by:

copyForSSA in class SSAInstruction

toString

public String toString(SymbolTable symbolTable)

Specified by:

toString in class SSAInstruction

visit

public void visit(SSAInstruction.IVisitor v)

Description copied from class: SSAInstruction

Apply an IVisitor to this instruction. We invoke the appropriate IVisitor method according to the type of this instruction.

Specified by:

visit in class SSAInstruction