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Add support for memmove

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llvm-svn: 9824
This commit is contained in:
Chris Lattner 2003-11-09 03:32:52 +00:00
parent c3c242c3ac
commit cff83a2f24
1 changed files with 9 additions and 0 deletions
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9
llvm/lib/Analysis/DataStructure/Local.cpp
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@ -446,6 +446,15 @@ void GraphBuilder::visitCallSite(CallSite CS) {
if (DSNode *N = RetNH.getNode())
N->setModifiedMarker();
return;
} else if (F->getName() == "memmove") {
// Merge the first & second arguments with the result, and mark the
// memory read and modified.
DSNodeHandle RetNH = getValueDest(*CS.getInstruction());
RetNH.mergeWith(getValueDest(**CS.arg_begin()));
RetNH.mergeWith(getValueDest(**(CS.arg_begin()+1)));
if (DSNode *N = RetNH.getNode())
N->setModifiedMarker()->setReadMarker();
return;
} else if (F->getName() == "bzero") {
// Mark the memory modified.
DSNodeHandle H = getValueDest(**CS.arg_begin());