1 files changed, 20 insertions, 0 deletions
diff --git a/test/ubsan/TestCases/Pointer/unsigned-index-expression.cpp b/test/ubsan/TestCases/Pointer/unsigned-index-expression.cpp
new file mode 100644
index 000000000..0002c713f
--- /dev/null
+++ b/test/ubsan/TestCases/Pointer/unsigned-index-expression.cpp
@@ -0,0 +1,20 @@
+// RUN: %clangxx -std=c++11 -fsanitize=pointer-overflow %s -o %t
+// RUN: %t 2>&1 | FileCheck %s
+
+int main(int argc, char *argv[]) {
+  char c;
+  char *p = &c;
+  unsigned long long neg_1 = -1;
+
+  // CHECK: unsigned-index-expression.cpp:[[@LINE+1]]:15: runtime error: addition of unsigned offset to 0x{{.*}} overflowed to 0x{{.*}}
+  char *q = p + neg_1;
+
+  // CHECK: unsigned-index-expression.cpp:[[@LINE+1]]:16: runtime error: subtraction of unsigned offset from 0x{{.*}} overflowed to 0x{{.*}}
+  char *q1 = p - neg_1;
+
+  // CHECK: unsigned-index-expression.cpp:[[@LINE+2]]:16: runtime error: pointer index expression with base 0x{{0*}} overflowed to 0x{{.*}}
+  char *n = nullptr;
+  char *q2 = n - 1ULL;
+
+  return 0;
+}