diff options
| author | Chris Lattner <sabre@nondot.org> | 2004-11-03 18:51:26 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2004-11-03 18:51:26 +0000 |
| commit | 82962de3b92c1df483430e5b03804a56c8c652dd (patch) | |
| tree | ca82e830b1ae2b5c3edccd8ae622eb08b173492c /lib/Analysis/DataStructure | |
| parent | 5200ad1b344ab73139ae798a34513065c2dfde52 (diff) | |
Don't call Constant::getNullValue when the argument could be VoidTy
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17457 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis/DataStructure')
| -rw-r--r-- | lib/Analysis/DataStructure/Local.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/Analysis/DataStructure/Local.cpp b/lib/Analysis/DataStructure/Local.cpp index b12a8ccb52..18e7df9145 100644 --- a/lib/Analysis/DataStructure/Local.cpp +++ b/lib/Analysis/DataStructure/Local.cpp @@ -209,7 +209,7 @@ DSGraph::DSGraph(const TargetData &td, Function &F, DSGraph *GG) /// DSNodeHandle GraphBuilder::getValueDest(Value &Val) { Value *V = &Val; - if (V == Constant::getNullValue(V->getType())) + if (isa<Constant>(V) && cast<Constant>(V)->isNullValue()) return 0; // Null doesn't point to anything, don't add to ScalarMap! DSNodeHandle &NH = ScalarMap[V]; @@ -528,7 +528,8 @@ void GraphBuilder::visitCallSite(CallSite CS) { return; } else if (F->getName() == "realloc") { DSNodeHandle RetNH = getValueDest(*CS.getInstruction()); - RetNH.mergeWith(getValueDest(**CS.arg_begin())); + if (CS.arg_begin() != CS.arg_end()) + RetNH.mergeWith(getValueDest(**CS.arg_begin())); if (DSNode *N = RetNH.getNode()) N->setHeapNodeMarker()->setModifiedMarker()->setReadMarker(); return; |