Consistently use AliasAnalysis::UnknownSize instead of hardcoding ~0u.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116815 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/AliasAnalysis.cpp b/lib/Analysis/AliasAnalysis.cpp
index 56fbfe4..e5a9b45 100644
--- a/lib/Analysis/AliasAnalysis.cpp
+++ b/lib/Analysis/AliasAnalysis.cpp
@@ -284,7 +284,7 @@
 /// if known, or a conservative value otherwise.
 ///
 unsigned AliasAnalysis::getTypeStoreSize(const Type *Ty) {
-  return TD ? TD->getTypeStoreSize(Ty) : ~0u;
+  return TD ? TD->getTypeStoreSize(Ty) : UnknownSize;
 }
 
 /// canBasicBlockModify - Return true if it is possible for execution of the