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ADD MORE FUNCTIONS!

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11927 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2004-02-27 20:04:48 +00:00
parent fa5229691f
commit 6b586df328
1 changed files with 20 additions and 14 deletions
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34
lib/Analysis/DataStructure/Local.cpp
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@ -529,7 +529,7 @@ void GraphBuilder::visitCallSite(CallSite CS) {
}
return;
} else if (F->getName() == "read" || F->getName() == "pipe" ||
F->getName() == "wait") {
F->getName() == "wait" || F->getName() == "time") {
// These functions write all of their pointer operands.
for (CallSite::arg_iterator AI = CS.arg_begin(), E = CS.arg_end();
AI != E; ++AI) {
@ -556,16 +556,14 @@ void GraphBuilder::visitCallSite(CallSite CS) {
N->mergeTypeInfo(PTy->getElementType(), StatBuf.getOffset());
}
return;
} else if (F->getName() == "fopen" || F->getName() == "fdopen") {
// fopen reads the mode argument strings.
CallSite::arg_iterator AI = CS.arg_begin();
if (isPointerType((*AI)->getType())) {
DSNodeHandle Path = getValueDest(**AI);
if (DSNode *N = Path.getNode()) N->setReadMarker();
}
DSNodeHandle Mode = getValueDest(**++AI);
if (DSNode *N = Mode.getNode()) N->setReadMarker();
} else if (F->getName() == "fopen" || F->getName() == "fdopen" ||
F->getName() == "freopen") {
// These functions read all of their pointer operands.
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();
// fopen allocates in an unknown way and writes to the file
// descriptor. Also, merge the allocated type into the node.
@ -576,6 +574,11 @@ void GraphBuilder::visitCallSite(CallSite CS) {
if (const PointerType *PTy = dyn_cast<PointerType>(RetTy))
N->mergeTypeInfo(PTy->getElementType(), Result.getOffset());
}
// If this is freopen, merge the file descriptor passed in with the
// result.
Result.mergeWith(getValueDest(**--CS.arg_end()));
return;
} else if (F->getName() == "fclose" && CS.arg_end()-CS.arg_begin() ==1){
// fclose reads and deallocates the memory in an unknown way for the
@ -592,7 +595,8 @@ void GraphBuilder::visitCallSite(CallSite CS) {
(F->getName() == "fflush" || F->getName() == "feof" ||
F->getName() == "fileno" || F->getName() == "clearerr" ||
F->getName() == "rewind" || F->getName() == "ftell" ||
F->getName() == "ferror")) {
F->getName() == "ferror" || F->getName() == "fgetc" ||
F->getName() == "fgetc" || F->getName() == "_IO_getc")) {
// fflush reads and writes the memory for the file descriptor. It
// merges the FILE type into the descriptor.
DSNodeHandle H = getValueDest(**CS.arg_begin());
@ -645,8 +649,10 @@ void GraphBuilder::visitCallSite(CallSite CS) {
return;
} else if (F->getName() == "ungetc" || F->getName() == "fputc" ||
F->getName() == "fputs" || F->getName() == "putc" ||
F->getName() == "ftell" || F->getName() == "rewind") {
// These functions read and write the memory for the file descriptor.
F->getName() == "ftell" || F->getName() == "rewind" ||
F->getName() == "_IO_putc") {
// These functions read and write the memory for the file descriptor,
// which is passes as the last argument.
DSNodeHandle H = getValueDest(**--CS.arg_end());
if (DSNode *N = H.getNode()) {
N->setReadMarker()->setModifiedMarker();