Replace most users of UnknownSize with LocationSize::unknown(); NFC

Moving away from UnknownSize is part of the effort to migrate us to
LocationSizes (e.g. the cleanup promised in D44748).

This doesn't entirely remove all of the uses of UnknownSize; some uses
require tweaks to assume that UnknownSize isn't just some kind of int.
This patch is intended to just be a trivial replacement for all places
where LocationSize::unknown() will Just Work.

llvm-svn: 344186

1 files changed, 3 insertions, 3 deletions

diff --git a/llvm/lib/Analysis/CFLAndersAliasAnalysis.cpp b/llvm/lib/Analysis/CFLAndersAliasAnalysis.cpp
index b43b48eeef7..1c61dd369a0 100644
--- a/llvm/lib/Analysis/CFLAndersAliasAnalysis.cpp
+++ b/llvm/lib/Analysis/CFLAndersAliasAnalysis.cpp
@@ -556,9 +556,9 @@ bool CFLAndersAAResult::FunctionInfo::mayAlias(
                                       OffsetValue{RHS, 0}, Comparator);
 
     if (RangePair.first != RangePair.second) {
-      // Be conservative about UnknownSize
-      if (MaybeLHSSize == MemoryLocation::UnknownSize ||
-          MaybeRHSSize == MemoryLocation::UnknownSize)
+      // Be conservative about unknown sizes
+      if (MaybeLHSSize == LocationSize::unknown() ||
+          MaybeRHSSize == LocationSize::unknown())
         return true;
 
       const uint64_t LHSSize = MaybeLHSSize.getValue();