memset and bcopy and now unified by the llvm.memset intrinsic
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11503 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/DataStructure/Local.cpp b/lib/Analysis/DataStructure/Local.cpp
index 9ee4425..d0bac6d 100644
--- a/lib/Analysis/DataStructure/Local.cpp
+++ b/lib/Analysis/DataStructure/Local.cpp
@@ -468,6 +468,11 @@
N->setModifiedMarker()->setReadMarker();
return;
}
+ case Intrinsic::memset:
+ // Mark the memory modified.
+ if (DSNode *N = getValueDest(**CS.arg_begin()).getNode())
+ N->setModifiedMarker();
+ return;
default:
if (F->getName() == "calloc") {
setDestTo(*CS.getInstruction(),
@@ -479,20 +484,6 @@
if (DSNode *N = RetNH.getNode())
N->setHeapNodeMarker()->setModifiedMarker()->setReadMarker();
return;
- } else if (F->getName() == "memset") {
- // Merge the first argument with the return value, and mark the memory
- // modified.
- DSNodeHandle RetNH = getValueDest(*CS.getInstruction());
- RetNH.mergeWith(getValueDest(**CS.arg_begin()));
- if (DSNode *N = RetNH.getNode())
- N->setModifiedMarker();
- return;
- } else if (F->getName() == "bzero") {
- // Mark the memory modified.
- DSNodeHandle H = getValueDest(**CS.arg_begin());
- if (DSNode *N = H.getNode())
- N->setModifiedMarker();
- return;
} else if (F->getName() == "fopen" && CS.arg_end()-CS.arg_begin() == 2){
// fopen reads the mode argument strings.
CallSite::arg_iterator AI = CS.arg_begin();