Class SSAInvokeInstruction
java.lang.Object
com.ibm.wala.ssa.SSAInstruction
com.ibm.wala.ssa.SSAAbstractInvokeInstruction
com.ibm.wala.ssa.SSAInvokeInstruction
- Direct Known Subclasses:
SSAInvokeDynamicInstruction
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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
Modifier and TypeFieldDescriptionprotected final int[]
The value numbers of the arguments passed to the call.protected final int
Fields inherited from class com.ibm.wala.ssa.SSAAbstractInvokeInstruction
exception, site
Fields inherited from class com.ibm.wala.ssa.SSAInstruction
NO_INDEX
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Constructor Summary
ModifierConstructorDescriptionprotected
SSAInvokeInstruction
(int iindex, int[] params, int exception, CallSiteReference site) Constructor InvokeInstruction.protected
SSAInvokeInstruction
(int iindex, int result, int[] params, int exception, CallSiteReference site) -
Method Summary
Modifier and TypeMethodDescriptionstatic void
assertParamsKosher
(int result, int[] params, CallSiteReference site) 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.int
How many parameters does this call specify?int
How many distinct values does this call return?int
int
getReturnValue
(int i) What is the the value number of the ith value returned by this callint
getUse
(int j) int
hashCode()
void
Apply an IVisitor to this instruction.Methods inherited from class com.ibm.wala.ssa.SSAAbstractInvokeInstruction
getCallSite, getDeclaredResultType, getDeclaredTarget, getDef, getDef, getException, getInvocationCode, getNumberOfDefs, getProgramCounter, getReceiver, hasDef, isDispatch, isFallThrough, isPEI, isSpecial, isStatic, toString
Methods inherited from class com.ibm.wala.ssa.SSAInstruction
equals, getExceptionTypes, getValueString, iIndex, setInstructionIndex, toString
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Field Details
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result
protected final int result -
params
protected final int[] paramsThe value numbers of the arguments passed to the call. For non-static methods, params[0] == this. If params == null, this should be a static method with no parameters.
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Constructor Details
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SSAInvokeInstruction
protected SSAInvokeInstruction(int iindex, int result, int[] params, int exception, CallSiteReference site) -
SSAInvokeInstruction
Constructor InvokeInstruction. This case for void return values
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Method Details
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copyForSSA
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
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assertParamsKosher
public static void assertParamsKosher(int result, int[] params, CallSiteReference site) throws IllegalArgumentException - Throws:
IllegalArgumentException
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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:
IllegalArgumentException
- if v is null- See Also:
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getNumberOfUses
public int getNumberOfUses()- Overrides:
getNumberOfUses
in classSSAInstruction
- See Also:
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getNumberOfPositionalParameters
public int getNumberOfPositionalParameters()Description copied from class:SSAAbstractInvokeInstruction
How many parameters does this call specify?- Specified by:
getNumberOfPositionalParameters
in classSSAAbstractInvokeInstruction
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getNumberOfReturnValues
public int getNumberOfReturnValues()Description copied from class:SSAAbstractInvokeInstruction
How many distinct values does this call return?- Specified by:
getNumberOfReturnValues
in classSSAAbstractInvokeInstruction
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getReturnValue
public int getReturnValue(int i) Description copied from class:SSAAbstractInvokeInstruction
What is the the value number of the ith value returned by this call- Specified by:
getReturnValue
in classSSAAbstractInvokeInstruction
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getUse
public int getUse(int j) - Overrides:
getUse
in classSSAInstruction
- Returns:
- value number representing the jth use in this instruction. -1 means TOP (i.e., the value doesn't matter)
- See Also:
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hashCode
public int hashCode()- Specified by:
hashCode
in classSSAInstruction
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