java.lang.Object
- com.ibm.wala.ssa.CompoundPiPolicy

All Implemented Interfaces:

SSAPiNodePolicy
```
public class CompoundPiPolicy
extends Object
implements SSAPiNodePolicy
```
A Combination of 2 SSAPiNodePolicys. This policy will insert Pi nodes if either of two delegate policies says to.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static CompoundPiPolicy`	`createCompoundPiPolicy(SSAPiNodePolicy p1, SSAPiNodePolicy p2)`
`boolean`	`equals(Object obj)`
`Pair<Integer,SSAInstruction>`	`getPi(SSAAbstractInvokeInstruction call, SymbolTable symbolTable)`	Do we need to introduce a new name for some value immediately after a call? If so, returns a pair consisting of the value number needing renaming, and the instruction which should be recorded as the cause of the pi instruction
`Pair<Integer,SSAInstruction>`	`getPi(SSAConditionalBranchInstruction cond, SSAInstruction def1, SSAInstruction def2, SymbolTable symbolTable)`	Do we need to introduce a new name for some value after deciding on an outcome for a conditional branch instruction? If so, returns a pair consisting of the value number needing renaming, and the instruction which should be recorded as the cause of the pi instruction
`int`	`hashCode()`

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - createCompoundPiPolicy
```
public static CompoundPiPolicy createCompoundPiPolicy(SSAPiNodePolicy p1,
                                                      SSAPiNodePolicy p2)
```
    Parameters:
    
    p1 - first SSAPiNodePolicy to delegate to
    
    p2 - second SSAPiNodePolicy to delegate to
  - getPi
```
public Pair<Integer,SSAInstruction> getPi(SSAConditionalBranchInstruction cond,
                                                SSAInstruction def1,
                                                SSAInstruction def2,
                                                SymbolTable symbolTable)
```
    Description copied from interface: SSAPiNodePolicy
    
    Do we need to introduce a new name for some value after deciding on an outcome for a conditional branch instruction? If so, returns a pair consisting of the value number needing renaming, and the instruction which should be recorded as the cause of the pi instruction
    
    Specified by:
    
    getPi in interface SSAPiNodePolicy
    
    Parameters:
    
    cond - the conditional branch instruction in question
    
    def1 - the SSAInstruction that defs cond.getUse(0), or null if none
    
    def2 - the SSAInstruction that defs cond.getUse(1), or null if none
    
    symbolTable - current state of the symbol table for the IR under construction
    
    Returns:
    
    description of the necessary pi instruction, or null if no pi instruction is needed.
  - getPi
```
public Pair<Integer,SSAInstruction> getPi(SSAAbstractInvokeInstruction call,
                                                SymbolTable symbolTable)
```
    Description copied from interface: SSAPiNodePolicy
    
    Do we need to introduce a new name for some value immediately after a call? If so, returns a pair consisting of the value number needing renaming, and the instruction which should be recorded as the cause of the pi instruction
    
    Specified by:
    
    getPi in interface SSAPiNodePolicy
    
    Parameters:
    
    call - the call instruction in question
    
    symbolTable - current state of the symbol table for the IR under construction
    
    Returns:
    
    description of the necessary pi instruction, or null if no pi instruction is needed.
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - equals
```
public boolean equals(Object obj)
```
    Overrides:
    
    equals in class Object

Class CompoundPiPolicy

Method Summary

Methods inherited from class java.lang.Object

Method Detail

createCompoundPiPolicy

getPi

getPi

hashCode

equals