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Add _more_ functions 

llvm-svn: 11862
This commit is contained in:
Chris Lattner 2004-02-26 03:43:08 +00:00
parent 73687be9d7
commit c8167b0e7e
1 changed files with 20 additions and 3 deletions
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23
llvm/lib/Analysis/DataStructure/Local.cpp
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@ -495,6 +495,15 @@ void GraphBuilder::visitCallSite(CallSite CS) {
if (DSNode *N = RetNH.getNode())
N->setHeapNodeMarker()->setModifiedMarker()->setReadMarker();
return;
} else if (F->getName() == "memmove") {
// Merge the first & second arguments, and mark the memory read and
// modified.
DSNodeHandle RetNH = getValueDest(**CS.arg_begin());
RetNH.mergeWith(getValueDest(**(CS.arg_begin()+1)));
if (DSNode *N = RetNH.getNode())
N->setModifiedMarker()->setReadMarker();
return;
} else if (F->getName() == "atoi" || F->getName() == "atof" ||
F->getName() == "atol" || F->getName() == "atoll" ||
F->getName() == "remove" || F->getName() == "unlink" ||
@ -753,12 +762,20 @@ void GraphBuilder::visitCallSite(CallSite CS) {
N->mergeTypeInfo(PTy->getElementType(), H.getOffset());
}
return;
} else if (F->getName() == "strchr" || F->getName() == "strrchr") {
// These read their first argument, and return it.
} else if (F->getName() == "strchr" || F->getName() == "strrchr" ||
F->getName() == "strstr") {
// These read their arguments, and return the first one
DSNodeHandle H = getValueDest(**CS.arg_begin());
H.mergeWith(getValueDest(*CS.getInstruction())); // Returns buffer
for (CallSite::arg_iterator AI = CS.arg_begin(), E = CS.arg_end();
AI != E; ++AI)
if (isPointerType((*AI)->getType()))
if (DSNode *N = getValueDest(**AI).getNode())
N->setReadMarker();
if (DSNode *N = H.getNode())
N->setReadMarker();
H.mergeWith(getValueDest(*CS.getInstruction())); // Returns buffer
return;
} else if (F->getName() == "modf" && CS.arg_end()-CS.arg_begin() == 2) {
// This writes its second argument, and forces it to double.