diff options
Diffstat (limited to 'clang/lib/Analysis/LiveVariables.cpp')
-rw-r--r-- | clang/lib/Analysis/LiveVariables.cpp | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/clang/lib/Analysis/LiveVariables.cpp b/clang/lib/Analysis/LiveVariables.cpp index 84e268f3fda..e6fd1627e2d 100644 --- a/clang/lib/Analysis/LiveVariables.cpp +++ b/clang/lib/Analysis/LiveVariables.cpp @@ -112,6 +112,11 @@ public: void VisitUnaryOperator(UnaryOperator* U); void Visit(Stmt *S); void VisitTerminator(CFGBlock* B); + + /// VisitConditionVariableInit - Handle the initialization of condition + /// variables at branches. Valid statements include IfStmt, ForStmt, + /// WhileStmt, and SwitchStmt. + void VisitConditionVariableInit(Stmt *S); void SetTopValue(LiveVariables::ValTy& V) { V = AD.AlwaysLive; @@ -126,7 +131,9 @@ void TransferFuncs::Visit(Stmt *S) { if (AD.Observer) AD.Observer->ObserveStmt(S,AD,LiveState); - if (getCFG().isBlkExpr(S)) LiveState(S,AD) = Dead; + if (getCFG().isBlkExpr(S)) + LiveState(S, AD) = Dead; + StmtVisitor<TransferFuncs,void>::Visit(S); } else if (!getCFG().isBlkExpr(S)) { @@ -142,6 +149,11 @@ void TransferFuncs::Visit(Stmt *S) { LiveState(S,AD) = Alive; } } + +void TransferFuncs::VisitConditionVariableInit(Stmt *S) { + assert(!getCFG().isBlkExpr(S)); + CFGRecStmtVisitor<TransferFuncs>::VisitConditionVariableInit(S); +} void TransferFuncs::VisitTerminator(CFGBlock* B) { |