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Added a command line option that allows the user to specify a list of

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functions that allocate memory.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24862 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
John Criswell 2005-12-19 17:38:39 +00:00
parent d845582d4a
commit fa70052063
1 changed files with 19 additions and 0 deletions
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19
lib/Analysis/DataStructure/Local.cpp
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@ -39,6 +39,12 @@ static cl::opt<bool>
TrackIntegersAsPointers("dsa-track-integers", cl::Hidden,
cl::desc("If this is set, track integers as potential pointers"));
static cl::list<std::string>
AllocList("alloc-list",
cl::value_desc("list"),
cl::desc("List of functions that allocate memory from the heap"),
cl::CommaSeparated);
namespace llvm {
namespace DS {
// isPointerType - Return true if this type is big enough to hold a pointer.
@ -548,6 +554,19 @@ void GraphBuilder::visitCallSite(CallSite CS) {
N->setModifiedMarker();
return;
default:
// Determine if the called function is one of the specified heap
// allocation functions
for (cl::list<std::string>::iterator AllocFunc = AllocList.begin(),
LastAllocFunc = AllocList.end();
AllocFunc != LastAllocFunc;
++AllocFunc) {
if (F->getName() == *(AllocFunc)) {
setDestTo(*CS.getInstruction(),
createNode()->setHeapNodeMarker()->setModifiedMarker());
return;
}
}
if (F->getName() == "calloc" || F->getName() == "posix_memalign" ||
F->getName() == "memalign" || F->getName() == "valloc") {
setDestTo(*CS.getInstruction(),