Package com.ibm.wala.ssa
Class SSAUnaryOpInstruction
- java.lang.Object
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- com.ibm.wala.ssa.SSAInstruction
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- com.ibm.wala.ssa.SSAAbstractUnaryInstruction
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- com.ibm.wala.ssa.SSAUnaryOpInstruction
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- Direct Known Subclasses:
AssignInstruction
,SSAPiInstruction
public class SSAUnaryOpInstruction extends SSAAbstractUnaryInstruction
An SSA instruction for some unary operator.- See Also:
for a list of operators
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Nested Class Summary
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Nested classes/interfaces inherited from class com.ibm.wala.ssa.SSAInstruction
SSAInstruction.IVisitor, SSAInstruction.Visitor
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Field Summary
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Fields inherited from class com.ibm.wala.ssa.SSAAbstractUnaryInstruction
result, val
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Fields inherited from class com.ibm.wala.ssa.SSAInstruction
iindex, NO_INDEX
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Constructor Summary
Constructors Constructor Description SSAUnaryOpInstruction(int iindex, IUnaryOpInstruction.IOperator operator, int result, int val)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method 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.IUnaryOpInstruction.IOperator
getOpcode()
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
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Methods inherited from class com.ibm.wala.ssa.SSAInstruction
equals, getExceptionTypes, getValueString, isPEI, toString
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Constructor Detail
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SSAUnaryOpInstruction
public SSAUnaryOpInstruction(int iindex, IUnaryOpInstruction.IOperator operator, int result, int val)
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Method Detail
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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
public String toString(SymbolTable symbolTable)
- Specified by:
toString
in classSSAInstruction
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visit
public void visit(SSAInstruction.IVisitor v) throws NullPointerException
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:
SSAInstruction.visit(IVisitor)
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getOpcode
public IUnaryOpInstruction.IOperator getOpcode()
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