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Allow the ResolveCallSiteModRefInfo method to return a mapping of nodes,

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implement the mod/ref bit masking


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@4578 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2002-11-06 19:59:33 +00:00
parent 268748a0d8
commit 4476ceb414
3 changed files with 41 additions and 16 deletions
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26
lib/Analysis/DataStructure/IPModRef.cpp
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@ -104,17 +104,28 @@ void FunctionModRefInfo::computeModRef(const Function &func)
// 2. It clears all of the mod/ref bits in the cloned graph
// 3. It then merges the bottom-up graph(s) for the specified call-site into
// the clone (bringing new mod/ref bits).
// 4. It returns the clone.
// 4. It returns the clone, and a mapping of nodes from the original TDGraph to
// the cloned graph with Mod/Ref info for the callsite.
//
// NOTE: Because this clones a dsgraph and returns it, the caller is responsible
// for deleting the returned graph!
//
DSGraph *FunctionModRefInfo::ResolveCallSiteModRefInfo(const CallInst &CI) {
// Step #1: Clone the top-down graph...
DSGraph *Result = new DSGraph(funcTDGraph);
DSGraph *FunctionModRefInfo::ResolveCallSiteModRefInfo(const CallInst &CI,
std::map<const DSNode*, DSNodeHandle> &NodeMap) {
// Step #1: Clone the top-down graph...
std::map<const DSNode*, DSNode*> RawNodeMap;
DSGraph *Result = new DSGraph(funcTDGraph, RawNodeMap);
// Convert the NodeMap from a map to DSNode* to be a map to DSNodeHandle's
NodeMap.insert(RawNodeMap.begin(), RawNodeMap.end());
// We are now done with the old map... so free it's memory...
RawNodeMap.clear();
// Step #2: Clear Mod/Ref information...
Result->maskNodeTypes(~(DSNode::Modified | DSNode::Read));
//const Function &F = *CI.getParent()->getParent();
//DSGraph &TDGraph = IPModRefObj.getAnalysis<TDDataStructures>().getDSGraph(F);
return Result;
@ -133,7 +144,8 @@ FunctionModRefInfo::computeModRef(const CallInst& callInst)
callSiteModRefInfo[&callInst] = callModRefInfo;
// Get a copy of the graph for the callee with the callee inlined
DSGraph* csgp = ResolveCallSiteModRefInfo(callInst);
std::map<const DSNode*, DSNodeHandle> NodeMap;
DSGraph* csgp = ResolveCallSiteModRefInfo(callInst, NodeMap);
// For all nodes in the graph, extract the mod/ref information
const std::vector<DSNode*>& csgNodes = csgp->getNodes();