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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.
7 struct non_aligned_struct {
8     int some_data[16]; // 64 bytes of stuff, non aligned.
9 };
10 
11 // An aligned type.
12 struct __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.
17 struct  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.
22 typedef aligned_struct another_aligned_struct;
23 
24 // A typedef to redefine a non-aligned struct as aligned.
25 typedef __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 
baz()45 int 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 
57 template<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 
blag()63 int 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.
70 template <int N>
71 struct S {
72   static int __thread __attribute__((aligned(N))) x; // expected-error{{alignment (64) of thread-local variable}}
73 };
74 
75 S<64> s_instance; // expected-note{{in instantiation of template class 'S<64>' requested here}}
76