Added test case to test null dereference checking with lval::ArrayOffset.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50454 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 10 insertions, 0 deletions

diff --git a/test/Analysis/null-deref-ps.c b/test/Analysis/null-deref-ps.c
index 2e66e18b66..86691bd9a3 100644
--- a/test/Analysis/null-deref-ps.c
+++ b/test/Analysis/null-deref-ps.c
@@ -29,6 +29,16 @@ int f3(char* x) {
   return x[i+1]; // expected-warning{{Dereference of null pointer.}}
 }
 
+int f3_b(char* x) {
+  
+  int i = 2;
+  
+  if (x)
+    return x[i - 1];
+  
+  return x[i+1]++; // expected-warning{{Dereference of null pointer.}}
+}
+
 int f4(int *p) {
   
   uintptr_t x = p;