From 548e51daca5d53127b1ba5988048a23b8cd6c17b Mon Sep 17 00:00:00 2001
From: Lukas Wölfer <lukas.woelfer@rwth-aachen.de>
Date: Sat, 2 Jun 2018 19:45:58 +0200
Subject: Fixed crash on zero size arrays

---
 lib/Core/ExecutorUtil.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

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

diff --git a/lib/Core/ExecutorUtil.cpp b/lib/Core/ExecutorUtil.cpp
index daea189a..c80354e2 100644
--- a/lib/Core/ExecutorUtil.cpp
+++ b/lib/Core/ExecutorUtil.cpp
@@ -59,6 +59,12 @@ namespace klee {
       } else if (isa<ConstantPointerNull>(c)) {
         return Expr::createPointer(0);
       } else if (isa<UndefValue>(c) || isa<ConstantAggregateZero>(c)) {
+        if (getWidthForLLVMType(c->getType()) == 0) {
+          if (isa<llvm::LandingPadInst>(ki->inst)) {
+            klee_warning_once(0, "Using zero size array fix for landingpad instruction filter");
+            return ConstantExpr::create(0, 1);
+          }
+        }
         return ConstantExpr::create(0, getWidthForLLVMType(c->getType()));
       } else if (const ConstantDataSequential *cds =
                  dyn_cast<ConstantDataSequential>(c)) {
-- 
cgit 1.4.1