Class SSAUnaryOpInstruction
java.lang.Object
com.ibm.wala.ssa.SSAInstruction
com.ibm.wala.ssa.SSAAbstractUnaryInstruction
com.ibm.wala.ssa.SSAUnaryOpInstruction
- Direct Known Subclasses:
AssignInstruction
,SSAPiInstruction
An SSA instruction for some unary operator.
- See Also:
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Nested Class Summary
Nested classes/interfaces inherited from class com.ibm.wala.ssa.SSAInstruction
SSAInstruction.IVisitor, SSAInstruction.Visitor
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Field Summary
Fields inherited from class com.ibm.wala.ssa.SSAAbstractUnaryInstruction
result, val
Fields inherited from class com.ibm.wala.ssa.SSAInstruction
NO_INDEX
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Constructor Summary
ConstructorDescriptionSSAUnaryOpInstruction
(int iindex, IUnaryOpInstruction.IOperator operator, int result, int val) -
Method Summary
Modifier and TypeMethodDescriptioncopyForSSA
(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.toString
(SymbolTable symbolTable) void
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, iIndex, isPEI, setInstructionIndex, toString
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Constructor Details
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SSAUnaryOpInstruction
public SSAUnaryOpInstruction(int iindex, IUnaryOpInstruction.IOperator operator, int result, int val)
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Method Details
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copyForSSA
public SSAInstruction copyForSSA(SSAInstructionFactory insts, int[] defs, int[] uses) throws IllegalArgumentException 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 classSSAInstruction
- Throws:
IllegalArgumentException
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toString
- Specified by:
toString
in classSSAInstruction
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visit
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 classSSAInstruction
- Throws:
NullPointerException
- See Also:
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getOpcode
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