1// TLS variable cannot be aligned to more than 32 bytes on PS4.
2
3// RUN: %clang_cc1 -triple x86_64-scei-ps4 -fsyntax-only -verify %s
4
5
6// A non-aligned type.
7struct non_aligned_struct {
8    int some_data[16]; // 64 bytes of stuff, non aligned.
9};
10
11// An aligned type.
12struct __attribute__(( aligned(64) )) aligned_struct {
13    int some_data[12]; // 48 bytes of stuff, aligned to 64.
14};
15
16// A type with an aligned field.
17struct  struct_with_aligned_field {
18    int some_aligned_data[12] __attribute__(( aligned(64) )); // 48 bytes of stuff, aligned to 64.
19};
20
21// A typedef of the aligned struct.
22typedef aligned_struct another_aligned_struct;
23
24// A typedef to redefine a non-aligned struct as aligned.
25typedef __attribute__(( aligned(64) )) non_aligned_struct yet_another_aligned_struct;
26
27// Non aligned variable doesn't cause an error.
28__thread non_aligned_struct foo;
29
30// Variable aligned because of its type should cause an error.
31__thread aligned_struct                    bar; // expected-error{{alignment (64) of thread-local variable}}
32
33// Variable explicitly aligned in the declaration should cause an error.
34__thread non_aligned_struct                bar2 __attribute__(( aligned(64) )); // expected-error{{alignment (64) of thread-local variable}}
35
36// Variable aligned because of one of its fields should cause an error.
37__thread struct_with_aligned_field         bar3; // expected-error{{alignment (64) of thread-local variable}}
38
39// Variable aligned because of typedef, first case.
40__thread another_aligned_struct            bar4; // expected-error{{alignment (64) of thread-local variable}}
41
42// Variable aligned because of typedef, second case.
43__thread yet_another_aligned_struct        bar5; // expected-error{{alignment (64) of thread-local variable}}
44
45int baz ()
46{
47    return foo.some_data[0] + bar.some_data[1] + bar2.some_data[2] +
48           bar3.some_aligned_data[3] + bar4.some_data[4] +
49           bar5.some_data[5];
50}
51
52
53// Verify alignment check where a dependent type is involved.
54// The check is (correctly) not performed on "t", but the check still is
55// performed on the structure as a whole once it has been instantiated.
56
57template<class T> struct templated_tls {
58    static __thread T t;
59    T other_t __attribute__(( aligned(64) ));
60};
61__thread templated_tls<int> blah; // expected-error{{alignment (64) of thread-local variable}}
62
63int blag() {
64    return blah.other_t * 2;
65}
66
67
68// Verify alignment check where the alignment is a template parameter.
69// The check is only performed during instantiation.
70template <int N>
71struct S {
72  static int __thread __attribute__((aligned(N))) x; // expected-error{{alignment (64) of thread-local variable}}
73};
74
75S<64> s_instance; // expected-note{{in instantiation of template class 'S<64>' requested here}}
76