From: Ted Kremenek <kremenek@apple.com>
Date: Wed, 30 Apr 2008 21:31:12 +0000 (+0000)
Subject: Provide SizeOfAlignTypeExpr workaround in the static analyzer for taking the sizeof... 
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=f342d1887c9b2ef24d029c0546d536e2277b9976;p=clang

Provide SizeOfAlignTypeExpr workaround in the static analyzer for taking the sizeof of a ObjCInterfaceType.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50499 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Analysis/GRExprEngine.cpp b/lib/Analysis/GRExprEngine.cpp
index 877bd09a28..7506c80f5e 100644
--- a/lib/Analysis/GRExprEngine.cpp
+++ b/lib/Analysis/GRExprEngine.cpp
@@ -1432,6 +1432,12 @@ void GRExprEngine::VisitSizeOfAlignOfTypeExpr(SizeOfAlignOfTypeExpr* Ex,
     if (!T.getTypePtr()->isConstantSizeType())
       return;
     
+    // Some code tries to take the sizeof an ObjCInterfaceType, relying that
+    // the compiler has laid out its representation.  Just report Unknown
+    // for these.
+    if (T->isObjCInterfaceType())
+      return;
+    
     amt = 1;  // Handle sizeof(void)
     
     if (T != getContext().VoidTy)