76 lines
2.7 KiB
C++
76 lines
2.7 KiB
C++
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// TLS variable cannot be aligned to more than 32 bytes on PS4.
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// RUN: %clang_cc1 -triple x86_64-scei-ps4 -fsyntax-only -verify %s
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// A non-aligned type.
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struct non_aligned_struct {
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int some_data[16]; // 64 bytes of stuff, non aligned.
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};
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// An aligned type.
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struct __attribute__(( aligned(64) )) aligned_struct {
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int some_data[12]; // 48 bytes of stuff, aligned to 64.
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};
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// A type with an aligned field.
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struct struct_with_aligned_field {
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int some_aligned_data[12] __attribute__(( aligned(64) )); // 48 bytes of stuff, aligned to 64.
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};
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// A typedef of the aligned struct.
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typedef aligned_struct another_aligned_struct;
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// A typedef to redefine a non-aligned struct as aligned.
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typedef __attribute__(( aligned(64) )) non_aligned_struct yet_another_aligned_struct;
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// Non aligned variable doesn't cause an error.
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__thread non_aligned_struct foo;
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// Variable aligned because of its type should cause an error.
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__thread aligned_struct bar; // expected-error{{alignment (64) of thread-local variable}}
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// Variable explicitly aligned in the declaration should cause an error.
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__thread non_aligned_struct bar2 __attribute__(( aligned(64) )); // expected-error{{alignment (64) of thread-local variable}}
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// Variable aligned because of one of its fields should cause an error.
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__thread struct_with_aligned_field bar3; // expected-error{{alignment (64) of thread-local variable}}
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// Variable aligned because of typedef, first case.
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__thread another_aligned_struct bar4; // expected-error{{alignment (64) of thread-local variable}}
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// Variable aligned because of typedef, second case.
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__thread yet_another_aligned_struct bar5; // expected-error{{alignment (64) of thread-local variable}}
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int baz ()
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{
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return foo.some_data[0] + bar.some_data[1] + bar2.some_data[2] +
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bar3.some_aligned_data[3] + bar4.some_data[4] +
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bar5.some_data[5];
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}
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// Verify alignment check where a dependent type is involved.
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// The check is (correctly) not performed on "t", but the check still is
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// performed on the structure as a whole once it has been instantiated.
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template<class T> struct templated_tls {
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static __thread T t;
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T other_t __attribute__(( aligned(64) ));
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};
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__thread templated_tls<int> blah; // expected-error{{alignment (64) of thread-local variable}}
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int blag() {
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return blah.other_t * 2;
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}
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// Verify alignment check where the alignment is a template parameter.
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// The check is only performed during instantiation.
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template <int N>
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struct S {
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static int __thread __attribute__((aligned(N))) x; // expected-error{{alignment (64) of thread-local variable}}
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};
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S<64> s_instance; // expected-note{{in instantiation of template class 'S<64>' requested here}}
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