Added initial support into the flow-sensitive dataflow solver to visit the Block-level expression

in a block's terminator.  This expression is visited within a block, but it is accessed by the
terminator.  This is important to observe because for live-variables analysis the block-level
expression is live between the terminator and where the expression occurs in the block.  So far
this hasn't been an issue to not observe this because the block-level expression used in the
terminator is always the last one in the block, and we have never queried the liveness information
about this point (but before the terminator).

llvm-svn: 49709

1 files changed, 2 insertions, 0 deletions

diff --git a/clang/lib/Analysis/UninitializedValues.cpp b/clang/lib/Analysis/UninitializedValues.cpp
index 3edf04ddb65..d5c697aa1c8 100644
--- a/clang/lib/Analysis/UninitializedValues.cpp
+++ b/clang/lib/Analysis/UninitializedValues.cpp
@@ -75,6 +75,8 @@ public:
   
   bool Visit(Stmt *S);
   bool BlockStmt_VisitExpr(Expr* E);
+    
+  void VisitTerminator(Stmt* T) { Visit(T); }
   
   BlockVarDecl* FindBlockVarDecl(Stmt* S);
 };