Block level expr should be visited. Otherwise variables in init expr of

DeclStmt would be dead before the DeclStmt.
For example:
int x = 0;
int y = x;
'x' would be dead before 'int y = x'.

llvm-svn: 74522

1 files changed, 3 insertions, 1 deletions

diff --git a/clang/lib/Analysis/LiveVariables.cpp b/clang/lib/Analysis/LiveVariables.cpp
index b0eb37b0652..b354566db02 100644
--- a/clang/lib/Analysis/LiveVariables.cpp
+++ b/clang/lib/Analysis/LiveVariables.cpp
@@ -135,9 +135,11 @@ void TransferFuncs::Visit(Stmt *S) {
     StmtVisitor<TransferFuncs,void>::Visit(S);
     
   }
-  else
+  else {
     // For block-level expressions, mark that they are live.
     LiveState(S,AD) = Alive;
+    StmtVisitor<TransferFuncs,void>::Visit(S);
+  }
 }
   
 void TransferFuncs::VisitTerminator(CFGBlock* B) {