From: Ted Kremenek <kremenek@apple.com>
Date: Mon, 9 Mar 2009 22:44:49 +0000 (+0000)
Subject: RegionStore::getElementLValue(): Handle the case where the base is a null pointer.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=de7ec634a4ba328b4108a7d13ef511f6a77f95c0;p=clang

RegionStore::getElementLValue(): Handle the case where the base is a null pointer.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66486 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Analysis/RegionStore.cpp b/lib/Analysis/RegionStore.cpp
index 4c54721e34..2f4d70a577 100644
--- a/lib/Analysis/RegionStore.cpp
+++ b/lib/Analysis/RegionStore.cpp
@@ -399,7 +399,11 @@ SVal RegionStoreManager::getLValueFieldOrIvar(const GRState* St, SVal Base,
 SVal RegionStoreManager::getLValueElement(const GRState* St, 
                                           SVal Base, SVal Offset) {
 
-  if (Base.isUnknownOrUndef())
+  // If the base is an unknown or undefined value, just return it back.
+  // FIXME: For absolute pointer addresses, we just return that value back as
+  //  well, although in reality we should return the offset added to that
+  //  value.
+  if (Base.isUnknownOrUndef() || isa<loc::ConcreteInt>(Base))
     return Base;
 
   // Only handle integer offsets... for now.