From c763a4087f1d8fa4dbdfb9c8f30d545cdb66a0aa Mon Sep 17 00:00:00 2001
From: Julian Büning <julian.buening@rwth-aachen.de>
Date: Sat, 10 Oct 2020 15:13:06 +0200
Subject: Ref: implement operator bool()

---
 lib/Core/ExecutionState.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'lib/Core/ExecutionState.cpp')

diff --git a/lib/Core/ExecutionState.cpp b/lib/Core/ExecutionState.cpp
index 62376db6..97f97a8b 100644
--- a/lib/Core/ExecutionState.cpp
+++ b/lib/Core/ExecutionState.cpp
@@ -283,7 +283,7 @@ bool ExecutionState::merge(const ExecutionState &b) {
     for (unsigned i=0; i<af.kf->numRegisters; i++) {
       ref<Expr> &av = af.locals[i].value;
       const ref<Expr> &bv = bf.locals[i].value;
-      if (av.isNull() || bv.isNull()) {
+      if (!av || !bv) {
         // if one is null then by implication (we are at same pc)
         // we cannot reuse this local, so just ignore
       } else {
-- 
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