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implement a new method.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20668 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2005-03-17 23:45:54 +00:00
parent 0f34412293
commit 4ffe5d8038
1 changed files with 36 additions and 0 deletions
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36
lib/Analysis/DataStructure/DataStructure.cpp
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@ -2141,3 +2141,39 @@ void DSGraph::computeGGToGMapping(InvNodeMapTy &InvNodeMap) {
}
}
/// computeCalleeCallerMapping - Given a call from a function in the current
/// graph to the 'Callee' function (which lives in 'CalleeGraph'), compute the
/// mapping of nodes from the callee to nodes in the caller.
void DSGraph::computeCalleeCallerMapping(DSCallSite CS, const Function &Callee,
DSGraph &CalleeGraph,
NodeMapTy &NodeMap) {
DSCallSite CalleeArgs =
CalleeGraph.getCallSiteForArguments(const_cast<Function&>(Callee));
computeNodeMapping(CalleeArgs.getRetVal(), CS.getRetVal(), NodeMap);
unsigned NumArgs = CS.getNumPtrArgs();
if (NumArgs > CalleeArgs.getNumPtrArgs())
NumArgs = CalleeArgs.getNumPtrArgs();
for (unsigned i = 0; i != NumArgs; ++i)
computeNodeMapping(CalleeArgs.getPtrArg(i), CS.getPtrArg(i), NodeMap);
// Map the nodes that are pointed to by globals.
DSScalarMap &CalleeSM = CalleeGraph.getScalarMap();
DSScalarMap &CallerSM = getScalarMap();
if (CalleeSM.global_size() >= CallerSM.global_size()) {
for (DSScalarMap::global_iterator GI = CallerSM.global_begin(),
E = CallerSM.global_end(); GI != E; ++GI)
if (CalleeSM.global_count(*GI))
computeNodeMapping(CalleeSM[*GI], CallerSM[*GI], NodeMap);
} else {
for (DSScalarMap::global_iterator GI = CalleeSM.global_begin(),
E = CalleeSM.global_end(); GI != E; ++GI)
if (CallerSM.global_count(*GI))
computeNodeMapping(CalleeSM[*GI], CallerSM[*GI], NodeMap);
}
}