fix a bogus assertion

llvm-svn: 20675
2005-03-18 23:18:30 +00:00 · 2005-03-18 23:18:30 +00:00 · 30525a04c1
parent 5bd948b4d7
commit 30525a04c1
1 changed files with 1 additions and 1 deletions
--- a/llvm/lib/Analysis/DataStructure/DataStructureAA.cpp
+++ b/llvm/lib/Analysis/DataStructure/DataStructureAA.cpp
@ -190,7 +190,7 @@ DSAA::getModRefInfo(CallSite CS, Value *P, unsigned Size) {
  DSScalarMap &CallerSM = CallerTDGraph.getScalarMap();
  DSScalarMap::iterator NI = CallerSM.find(P);
  if (NI == CallerSM.end()) {
-    if (isa<ConstantPointerNull>(P))
+    if (isa<ConstantPointerNull>(P) || isa<UndefValue>(P))
      Result = NoModRef;                 // null is never modified :)
    else {
      assert(isa<GlobalVariable>(P) &&