From: Zhongxing Xu <xuzhongxing@gmail.com>
Date: Mon, 27 Oct 2008 09:00:08 +0000 (+0000)
Subject: Only loc::MemRegionVal can be modified. This avoids crashing in RegionStore when... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=d03eea038271ab3a3be73e11c8fd7852effcf7f7;p=clang

Only loc::MemRegionVal can be modified. This avoids crashing in RegionStore when a function pointer is used as an argument.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@58233 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Analysis/GRSimpleVals.cpp b/lib/Analysis/GRSimpleVals.cpp
index a2a59f3e92..48b25a71f9 100644
--- a/lib/Analysis/GRSimpleVals.cpp
+++ b/lib/Analysis/GRSimpleVals.cpp
@@ -369,7 +369,7 @@ void GRSimpleVals::EvalCall(ExplodedNodeSet<GRState>& Dst,
 
     SVal V = StateMgr.GetSVal(St, *I);
     
-    if (isa<Loc>(V))
+    if (isa<loc::MemRegionVal>(V))
       St = StateMgr.SetSVal(St, cast<Loc>(V), UnknownVal());
     else if (isa<nonloc::LocAsInteger>(V))
       St = StateMgr.SetSVal(St, cast<nonloc::LocAsInteger>(V).getLoc(),