public static final String TOPLOC = "TOPLOC";
+ public static final String INTERLOC = "INTERLOC";
+
public static final Descriptor GLOBALDESC = new NameDescriptor(GLOBALLOC);
public static final Descriptor TOPDESC = new NameDescriptor(TOPLOC);
rtr += "\n@GLOBALLOC(\"GLOBALLOC\")";
CompositeLocation pcLoc = methodLocInfo.getPCLoc();
- if (pcLoc != null) {
+ if ((pcLoc != null) && (!pcLoc.get(0).isTop())) {
rtr += "\n@PCLOC(\"" + generateLocationAnnoatation(pcLoc) + "\")";
}
FlowGraph flowGraph = getFlowGraph(md);
try {
System.out.println("***** src composite case::");
- calculateCompositeLocation(flowGraph, methodLattice, methodInfo, srcNode);
+ calculateCompositeLocation(flowGraph, methodLattice, methodInfo, srcNode, null);
CompositeLocation srcInferLoc =
generateInferredCompositeLocation(methodInfo, flowGraph.getLocationTuple(srcNode));
// there is a cyclic value flow... try to calculate a composite location
// for the destination node
System.out.println("***** dst composite case::");
- calculateCompositeLocation(flowGraph, methodLattice, methodInfo, dstNode);
+ calculateCompositeLocation(flowGraph, methodLattice, methodInfo, dstNode, srcNode);
CompositeLocation srcInferLoc =
generateInferredCompositeLocation(methodInfo, flowGraph.getLocationTuple(srcNode));
CompositeLocation dstInferLoc =
}
private boolean calculateCompositeLocation(FlowGraph flowGraph,
- SSJavaLattice<String> methodLattice, MethodLocationInfo methodInfo, FlowNode flowNode)
- throws CyclicFlowException {
+ SSJavaLattice<String> methodLattice, MethodLocationInfo methodInfo, FlowNode flowNode,
+ FlowNode srcNode) throws CyclicFlowException {
Descriptor localVarDesc = flowNode.getDescTuple().get(0);
NTuple<Location> flowNodelocTuple = flowGraph.getLocationTuple(flowNode);
}
});
- System.out.println("prefixList=" + prefixList);
- System.out.println("reachableNodeSet=" + reachableNodeSet);
+ // System.out.println("prefixList=" + prefixList);
+ // System.out.println("reachableNodeSet=" + reachableNodeSet);
// find out reachable nodes that have the longest common prefix
for (int i = 0; i < prefixList.size(); i++) {
// the same infer location is already existed. no need to do
// anything
System.out.println("NO ATTEMPT TO MAKE A COMPOSITE LOCATION curPrefix=" + curPrefix);
+
+ // TODO: refactoring!
+ if (srcNode != null) {
+ CompositeLocation newLoc = new CompositeLocation();
+ String newLocSymbol = "Loc" + (SSJavaLattice.seed++);
+ for (int locIdx = 0; locIdx < curPrefix.size(); locIdx++) {
+ newLoc.addLocation(curPrefix.get(locIdx));
+ }
+ Location newLocationElement = new Location(desc, newLocSymbol);
+ newLoc.addLocation(newLocationElement);
+
+ Descriptor srcLocalVar = srcNode.getDescTuple().get(0);
+ methodInfo.mapDescriptorToLocation(srcLocalVar, newLoc.clone());
+ addMapLocSymbolToInferredLocation(methodInfo.getMethodDesc(), srcLocalVar, newLoc);
+ methodInfo.removeMaplocalVarToLocSet(srcLocalVar);
+
+ // add the field/var descriptor to the set of the location symbol
+ int lastIdx = srcNode.getDescTuple().size() - 1;
+ Descriptor lastFlowNodeDesc = srcNode.getDescTuple().get(lastIdx);
+ NTuple<Location> srcNodelocTuple = flowGraph.getLocationTuple(srcNode);
+ Descriptor enclosinglastLastFlowNodeDesc = srcNodelocTuple.get(lastIdx).getDescriptor();
+
+ CompositeLocation newlyInferredLocForFlowNode =
+ generateInferredCompositeLocation(methodInfo, srcNodelocTuple);
+ Location lastInferLocElement =
+ newlyInferredLocForFlowNode.get(newlyInferredLocForFlowNode.getSize() - 1);
+ Descriptor enclosingLastInferLocElement = lastInferLocElement.getDescriptor();
+
+ // getLocationInfo(enclosingLastInferLocElement).addMapLocSymbolToDescSet(
+ // lastInferLocElement.getLocIdentifier(), lastFlowNodeDesc);
+ getLocationInfo(enclosingLastInferLocElement).addMapLocSymbolToRelatedInferLoc(
+ lastInferLocElement.getLocIdentifier(), enclosinglastLastFlowNodeDesc,
+ lastFlowNodeDesc);
+
+ System.out.println("@@@@@@@ ASSIGN " + newLoc + " to SRC=" + srcNode);
+ }
+
return true;
} else {
// assign a new composite location
analyzeFlowExpressionNode(md, nametable, isn.getCondition(), condTupleNode, null,
implicitFlowTupleSet, false);
+// NTuple<Descriptor> interTuple = getFlowGraph(md).createIntermediateNode().getDescTuple();
+// for (Iterator<NTuple<Descriptor>> idxIter = condTupleNode.iterator(); idxIter.hasNext();) {
+// NTuple<Descriptor> tuple = idxIter.next();
+// addFlowGraphEdge(md, tuple, interTuple);
+// }
+//
+// for (Iterator<NTuple<Descriptor>> idxIter = implicitFlowTupleSet.iterator(); idxIter.hasNext();) {
+// NTuple<Descriptor> tuple = idxIter.next();
+// addFlowGraphEdge(md, tuple, interTuple);
+// }
+//
+// NodeTupleSet newImplicitSet = new NodeTupleSet();
+// newImplicitSet.addTuple(interTuple);
+// analyzeFlowBlockNode(md, nametable, isn.getTrueBlock(), newImplicitSet);
+//
+// if (isn.getFalseBlock() != null) {
+// analyzeFlowBlockNode(md, nametable, isn.getFalseBlock(), newImplicitSet);
+// }
+
// add edges from condNodeTupleSet to all nodes of conditional nodes
condTupleNode.addTupleSet(implicitFlowTupleSet);
analyzeFlowBlockNode(md, nametable, isn.getTrueBlock(), condTupleNode);
}
NodeTupleSet idxNodeTupleSet = new NodeTupleSet();
+
if (left instanceof ArrayAccessNode) {
ArrayAccessNode aan = (ArrayAccessNode) left;
left = aan.getExpression();
analyzeFlowExpressionNode(md, nametable, aan.getIndex(), idxNodeTupleSet, base,
implicitFlowTupleSet, isLHS);
+
nodeSet.addTupleSet(idxNodeTupleSet);
}
base =
if (an.getOperation().getOp() >= 2 && an.getOperation().getOp() <= 12) {
// if assignment contains OP+EQ operator, creates edges from LHS to LHS
+
for (Iterator<NTuple<Descriptor>> iter = nodeSetLHS.iterator(); iter.hasNext();) {
NTuple<Descriptor> fromTuple = iter.next();
for (Iterator<NTuple<Descriptor>> iter2 = nodeSetLHS.iterator(); iter2.hasNext();) {
}
// creates edges from RHS to LHS
+ NTuple<Descriptor> interTuple = null;
+ if (nodeSetRHS.size() > 1) {
+ interTuple = getFlowGraph(md).createIntermediateNode().getDescTuple();
+ }
+
for (Iterator<NTuple<Descriptor>> iter = nodeSetRHS.iterator(); iter.hasNext();) {
NTuple<Descriptor> fromTuple = iter.next();
for (Iterator<NTuple<Descriptor>> iter2 = nodeSetLHS.iterator(); iter2.hasNext();) {
NTuple<Descriptor> toTuple = iter2.next();
- addFlowGraphEdge(md, fromTuple, toTuple);
+ addFlowGraphEdge(md, fromTuple, interTuple, toTuple);
}
}
} else {
// postinc case
+
for (Iterator<NTuple<Descriptor>> iter2 = nodeSetLHS.iterator(); iter2.hasNext();) {
NTuple<Descriptor> tuple = iter2.next();
addFlowGraphEdge(md, tuple, tuple);
private boolean addFlowGraphEdge(MethodDescriptor md, NTuple<Descriptor> from,
NTuple<Descriptor> to) {
- // TODO
- // return true if it adds a new edge
FlowGraph graph = getFlowGraph(md);
graph.addValueFlowEdge(from, to);
return true;
}
+ private void addFlowGraphEdge(MethodDescriptor md, NTuple<Descriptor> from,
+ NTuple<Descriptor> inter, NTuple<Descriptor> to) {
+
+ FlowGraph graph = getFlowGraph(md);
+
+ if (inter != null) {
+ graph.addValueFlowEdge(from, inter);
+ graph.addValueFlowEdge(inter, to);
+ } else {
+ graph.addValueFlowEdge(from, to);
+ }
+
+ }
+
public void _debug_printGraph() {
Set<MethodDescriptor> keySet = mapMethodDescriptorToFlowGraph.keySet();
class CyclicFlowException extends Exception {
}
+
+class InterDescriptor extends Descriptor {
+
+ public InterDescriptor(String name) {
+ super(name);
+ }
+
+}