++/-- makes a variable live since it is used; thus the liveness state is
"Alive" as opposed to staying the same.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49707 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/LiveVariables.cpp b/lib/Analysis/LiveVariables.cpp
index 06f30fa..b704b2d 100644
--- a/lib/Analysis/LiveVariables.cpp
+++ b/lib/Analysis/LiveVariables.cpp
@@ -114,10 +114,10 @@
// until we either find a DeclRefExpr or some non-DeclRefExpr
// expression.
if (DeclRefExpr* DR = dyn_cast<DeclRefExpr>(E->IgnoreParens()))
- if (isa<VarDecl>(DR->getDecl())) {
- // Treat the --/++ operator as a kill. Note that the variable
- // is still live, just its value has been changed.
+ if (VarDecl* VD = dyn_cast<VarDecl>(DR->getDecl())) {
+ // Treat the --/++ operator as a kill.
if (AD.Observer) { AD.Observer->ObserverKill(DR); }
+ LiveState(VD, AD) = Alive;
return VisitDeclRefExpr(DR);
}