1 // RUN: %clang_cc1 -fsyntax-only -verify %s -triple x86_64-linux-gnu
2 
3 // PR15216
4 // Don't crash when taking computing the offset of structs with large arrays.
5 const unsigned long Size = (1l << 60);
6 
7 struct Chunk1 {
8   char padding[Size];
9   char more_padding[1][Size];
10   char data;
11 };
12 
13 int test1 = __builtin_offsetof(struct Chunk1, data);
14 
15 struct Chunk2 {
16   char padding[Size][Size][Size];  // expected-error 2{{array is too large}}
17   char data;
18 };
19 
20 // FIXME: Remove this error when the constant evaluator learns to
21 // ignore bad types.
22 int test2 = __builtin_offsetof(struct Chunk2, data);  // expected-error{{initializer element is not a compile-time constant}}
23