1 files changed, 22 insertions, 0 deletions
diff --git a/test/Analysis/ptr-arith.cpp b/test/Analysis/ptr-arith.cpp
new file mode 100644
index 0000000..5f09518
--- /dev/null
+++ b/test/Analysis/ptr-arith.cpp
@@ -0,0 +1,22 @@
+// RUN: %clang_cc1 -analyze -analyzer-checker=core,debug.ExprInspection -verify %s
+// expected-no-diagnostics
+struct X {
+  int *p;
+  int zero;
+  void foo () {
+    reset(p - 1);
+  }
+  void reset(int *in) {
+    while (in != p) // Loop must be entered.
+      zero = 1;
+  }
+};
+
+int test (int *in) {
+  X littleX;
+  littleX.zero = 0;
+  littleX.p = in;
+  littleX.foo();
+  return 5/littleX.zero; // no-warning
+}
+