Don't add a null successor to a CFGBlock when the contents of an @synchronized statement is empty.

Fixes <rdar://problem/7979430>.

llvm-svn: 103717

1 files changed, 1 insertions, 2 deletions

diff --git a/clang/lib/Analysis/CFG.cpp b/clang/lib/Analysis/CFG.cpp
index 7f71e0acf7a..c7eb53d3613 100644
--- a/clang/lib/Analysis/CFG.cpp
+++ b/clang/lib/Analysis/CFG.cpp
@@ -1223,10 +1223,9 @@ CFGBlock* CFGBuilder::VisitObjCAtSynchronizedStmt(ObjCAtSynchronizedStmt* S) {
       return 0;
 
     Block = 0;
+    Succ = SyncBlock;
   }
 
-  Succ = SyncBlock;
-
   // Inline the sync expression.
   return addStmt(S->getSynchExpr());
 }