1 files changed, 18 insertions, 0 deletions
diff --git a/test/CodeGen/tbaa-array.cpp b/test/CodeGen/tbaa-array.cpp
new file mode 100644
index 000000000000..86ca5ccb40dc
--- /dev/null
+++ b/test/CodeGen/tbaa-array.cpp
@@ -0,0 +1,18 @@
+// RUN: %clang_cc1 -triple x86_64-linux -O1 -disable-llvm-passes %s \
+// RUN:     -emit-llvm -o - | FileCheck %s
+//
+// Check that we generate correct TBAA information for accesses to array
+// elements.
+
+struct A { int i; };
+struct B { A a[1]; };
+
+int foo(B *b) {
+// CHECK-LABEL: _Z3fooP1B
+// CHECK: load i32, {{.*}}, !tbaa [[TAG_A_i:!.*]]
+  return b->a->i;
+}
+
+// CHECK-DAG: [[TAG_A_i]] = !{[[TYPE_A:!.*]], [[TYPE_int:!.*]], i64 0}
+// CHECK-DAG: [[TYPE_A]] = !{!"_ZTS1A", !{{.*}}, i64 0}
+// CHECK-DAG: [[TYPE_int]] = !{!"int", !{{.*}}, i64 0}