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150
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1 // TLS variable cannot be aligned to more than 32 bytes on PS4.
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2
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3 // RUN: %clang_cc1 -triple x86_64-scei-ps4 -fsyntax-only -verify %s
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4
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5
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6 // A non-aligned type.
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7 struct non_aligned_struct {
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8 int some_data[16]; // 64 bytes of stuff, non aligned.
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9 };
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10
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11 // An aligned type.
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12 struct __attribute__(( aligned(64) )) aligned_struct {
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13 int some_data[12]; // 48 bytes of stuff, aligned to 64.
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14 };
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15
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16 // A type with an aligned field.
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17 struct struct_with_aligned_field {
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18 int some_aligned_data[12] __attribute__(( aligned(64) )); // 48 bytes of stuff, aligned to 64.
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19 };
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20
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21 // A typedef of the aligned struct.
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22 typedef aligned_struct another_aligned_struct;
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23
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24 // A typedef to redefine a non-aligned struct as aligned.
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25 typedef __attribute__(( aligned(64) )) non_aligned_struct yet_another_aligned_struct;
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26
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27 // Non aligned variable doesn't cause an error.
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28 __thread non_aligned_struct foo;
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29
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30 // Variable aligned because of its type should cause an error.
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31 __thread aligned_struct bar; // expected-error{{alignment (64) of thread-local variable}}
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32
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33 // Variable explicitly aligned in the declaration should cause an error.
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34 __thread non_aligned_struct bar2 __attribute__(( aligned(64) )); // expected-error{{alignment (64) of thread-local variable}}
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35
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36 // Variable aligned because of one of its fields should cause an error.
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37 __thread struct_with_aligned_field bar3; // expected-error{{alignment (64) of thread-local variable}}
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38
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39 // Variable aligned because of typedef, first case.
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40 __thread another_aligned_struct bar4; // expected-error{{alignment (64) of thread-local variable}}
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41
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42 // Variable aligned because of typedef, second case.
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43 __thread yet_another_aligned_struct bar5; // expected-error{{alignment (64) of thread-local variable}}
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44
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45 int baz ()
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46 {
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47 return foo.some_data[0] + bar.some_data[1] + bar2.some_data[2] +
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48 bar3.some_aligned_data[3] + bar4.some_data[4] +
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49 bar5.some_data[5];
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50 }
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51
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52
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53 // Verify alignment check where a dependent type is involved.
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54 // The check is (correctly) not performed on "t", but the check still is
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55 // performed on the structure as a whole once it has been instantiated.
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56
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57 template<class T> struct templated_tls {
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58 static __thread T t;
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59 T other_t __attribute__(( aligned(64) ));
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60 };
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61 __thread templated_tls<int> blah; // expected-error{{alignment (64) of thread-local variable}}
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62
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63 int blag() {
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64 return blah.other_t * 2;
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65 }
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66
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67
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68 // Verify alignment check where the alignment is a template parameter.
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69 // The check is only performed during instantiation.
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70 template <int N>
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71 struct S {
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72 static int __thread __attribute__((aligned(N))) x; // expected-error{{alignment (64) of thread-local variable}}
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73 };
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74
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75 S<64> s_instance; // expected-note{{in instantiation of template class 'S<64>' requested here}}
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