1 files changed, 15 insertions, 0 deletions
diff --git a/test/Sema/offsetof-64.c b/test/Sema/offsetof-64.c
new file mode 100644
index 0000000000..1cabec9842
--- /dev/null
+++ b/test/Sema/offsetof-64.c
@@ -0,0 +1,15 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s -triple x86_64-linux-gnu
+// expected-no-diagnostics
+
+// PR15216
+// Don't crash when taking computing the offset of structs with large arrays.
+const unsigned long Size = (1l << 62);
+
+struct Chunk {
+  char padding[Size];
+  char more_padding[1][Size];
+  char data;
+};
+
+int test1 = __builtin_offsetof(struct Chunk, data);
+