1 files changed, 6 insertions, 0 deletions
diff --git a/clang/lib/Analysis/FlowSensitive/DataflowAnalysisContext.cpp b/clang/lib/Analysis/FlowSensitive/DataflowAnalysisContext.cpp
index fa11497..d95b332 100644
--- a/clang/lib/Analysis/FlowSensitive/DataflowAnalysisContext.cpp
+++ b/clang/lib/Analysis/FlowSensitive/DataflowAnalysisContext.cpp
@@ -174,6 +174,9 @@ Solver::Result DataflowAnalysisContext::querySolver(
 
 bool DataflowAnalysisContext::flowConditionImplies(Atom Token,
                                                    const Formula &F) {
+  if (F.isLiteral(true))
+    return true;
+
   // Returns true if and only if truth assignment of the flow condition implies
   // that `F` is also true. We prove whether or not this property holds by
   // reducing the problem to satisfiability checking. In other words, we attempt
@@ -188,6 +191,9 @@ bool DataflowAnalysisContext::flowConditionImplies(Atom Token,
 
 bool DataflowAnalysisContext::flowConditionAllows(Atom Token,
                                                   const Formula &F) {
+  if (F.isLiteral(false))
+    return false;
+
   llvm::SetVector<const Formula *> Constraints;
   Constraints.insert(&arena().makeAtomRef(Token));
   Constraints.insert(&F);