[analyzer] Fix a crash when analyzing C++ code.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125958 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Analysis/cxx-crashes.cpp b/test/Analysis/cxx-crashes.cpp
new file mode 100644
index 0000000..720850c
--- /dev/null
+++ b/test/Analysis/cxx-crashes.cpp
@@ -0,0 +1,7 @@
+// RUN: %clang_cc1 -analyze -analyzer-check-objc-mem -verify %s
+
+int f1(char *dst) {
+  char *p = dst + 4;
+  char *q = dst + 3;
+  return !(q >= p);
+}