1 files changed, 14 insertions, 0 deletions
diff --git a/test/CodeGen/tbaa-thread-sanitizer.cpp b/test/CodeGen/tbaa-thread-sanitizer.cpp
new file mode 100644
index 0000000..abffae3
--- /dev/null
+++ b/test/CodeGen/tbaa-thread-sanitizer.cpp
@@ -0,0 +1,14 @@
+// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -o - %s -fsanitize=thread -relaxed-aliasing -O1 | FileCheck %s
+
+// Make sure we do not crash when relaxed-aliasing is on.
+// CHECK-NOT: !tbaa
+struct iterator { void *node; };
+
+struct pair {
+  iterator first;
+  pair(const iterator &a) : first(a) {}
+};
+
+void equal_range() {
+  (void)pair(iterator());
+}